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D = K Â· f, and conflict control algorithm based control system into the system the number of packets, the input load: a ur (f): [elbow one X (f)] / 21 Mei q Figure 5 users like Chi xl,tiffany canada, x2 phase plan by the dynamic flow balance principle, there is the system state equation: (f) = a (t) / D Â· exp (M a 2x (t) / D] + [a X ( 03A (20) X from the previous section discussion,ralph lauren paris, we know from the balance of random access system stability and load line trajectory r (X) position of each other, that is,louis vuitton wallet, from the user parameter M,oakley outlet, and the system parameters D decision to make: = class: 0 a - 100 dXJ <{<, r âˆž and the system load line throughput curve (1) there is only one intersection, then the system stable and dr (X) dX a Ã· â€° laX When conflict control algorithm changes the load line may have different forms, but to ensure system stability conditions are,) <... dL ... odXdXII (as. inflection point), ... /,, this conclusion conflicts of stable sub-user's perspective It is equally effective. IV Summary This paper discussed separately from the static and dynamic random access system of conflict and stability. In fact, the stability of the system determined by the structure of the system itself, but the load increase in conflict situations, the system hidden instability is easy to be inspired by, making the original work on the stable point of the system to jump instability, the system is unstable, so random access system stability and conflict are closely linked, it is to put them together to discuss the reasons for In random access systems of conflict and conflict-quality measurement and quantitative expression, has withdrawn many predecessors, but we believe that these are obviously more general, sometimes more vague concept, such a conflict, given the number of statistical expression, is not grateful that point of view or from a user point of view of the observations from the system. ambiguity is not conducive to that other performance measures j In addition, we also feel that the dynamic random access system less discussion of the issue, this is not random access system to facilitate visual inspection of the internal mechanisms and working processes. It is these deficiencies for the Mi Park, we did some fundamental work. In short we believe that the statistical average and dynamic tracking of all systems analysis, two important aspects, neither of not complete, while users with the system in any structure in the individual and the overall unity of opposites are contradictory, to discuss the problem should be treated separately, I Ir] is moving in both directions proud of some modest efforts. References Xian Ji I HIROMIet. ComparatireEvaluationofTokeningandCA/CDMedium-AccessProtocolsInLoealConfigurationsComputerNetwor kingSymposium1984. Kl ~ nrockL, LamSSOnStabilityofPacketSwitchinginaRandomMulti-aCceSSBroadcastChannel! SeventhHawai1nternatiOna1ConferenceonSystemScience , Honolulu, 1974. Cai Shangfeng: automatic control theory *, Machinery Industry Press, 1980. LEONARDKLEINROCK, SimonS. LAM, PacketSwitchinginaMultiaccessBzoadcastChanndlPerfo rmanceEvaluationIEEETrans. OnCommuni'eation, vo1. 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In theory,abercrombie uk, three points determine a plane,abercrombie paris, continuous light cutting surface and knife-line access to only a few high points, and the location of these points is random. The pulse of light cutting surface and knife-line contact is a uniform distribution of the ridge, and each tip deformation due to a ridge,abercrombie and fitch outlet, and the knife lines are maintained good contact. Therefore, the pulsed light of the kerf kerf than the effect of continuous light is much better. BU 1! / LastlightspotArrisfilletFirstlightspot Â· 81 Â· Figure 5 pulsed laser kerf schematic Fig. 5Illustrationofpulselasercuttingtheseam for laser pulses, an important parameter is the pulse repetition rate of the frequency. Repeated at different frequencies, cutting varied widely. Therefore, to study on the slit width and repetition rate influence the shape of joints. In determining the experimental parameters in the input laser power of 2200W, changes in the laser pulse frequency, respectively 10,20,30,40 and 50Hz. The results shown in Figure 6. Figure 6 the frequency of the laser slit-shaped slit width and the impact of Fig. 6Effectoflaserfrequencytotheseamwideandshape seen from the diagram,mbt outlet, with the repetition rate increase, slit becomes wider. The reason is that with repetition rate increase, the average output power is increasing. The remarkable feature is that no matter how much the value of repetition rate, catchy, and the size of the exit are the same, that is, a rectangular slit. This means that changing the repetition rate can change slit width, but does not change the slit-shaped. When the laser frequency is 20Hz, the slot width of 1.5mm or so. Pulse duty cycle of 3.6 is defined as the duty cycle light pulses in a cycle, a time of light pulse cycle time ratio. In determining the parameters of the experiment, the laser input power 2200w, changing the pulse duty cycle, respectively, 5O, 6O, 7O, 8O, and 9O. The results shown in Figure 7. The figure shows that with increased duty cycle, kerf width is also widened. The reason is as duty cycle increased, the average power output is also FdOb â–* Â· 82 Â· improve, so the kerf width increases. And catchy, and the same trend under the mouth. The duty cycle of the low-end, under the port more than catchy narrow, inverted trapezoidal seam; in high duty cycle, under the port more than catchy width, trapezoid joints. But with the rise in duty, under the port wider rate is greater than catchy, the duty cycle of 70 or so, catchy, and the size of the exit line, cut into rectangles sewn seam, Aperture 1 .41 T11T1 so. Pulseduty / (%) Figure 7 slot width and pulse duty cycle on the effects of slit-shaped Fig. 7Effectofpulsedutytotheseamwideandshape optical character soft light 2003 14 (4) experiment concluded from the above study found that the amount of laser power and focus away from the greater impact on Aperture. Therefore, laser cutting, the first adjustment of laser power and the defocus amount, the basic set of catchy Aperture. Then, re-adjust the exit of the kerf cutting speed have significant impact, so catchy and the exit slit size are consistent, that is, cut out a rectangular slit. At this point, such as cutting loose or tight side seam dimensions (with a knife line insertion experience), and then fine-tune the repetition frequency (time gap does not change shape), to get the appropriate slot width. References: [1] Zhang Shan, et al. Die board laser cutting technology [J]. China Printing ,1992,35:51-56 ,1992,36:54-58. [2] Zhang Guihua. Laser cutting cutting board tray set in bridge research [J]. Advances in laser and electronics, 1996, Supplement ,262-265. [3] Han Zhuping, et al. Tray cutting board CAM system research and development [J]. Packaging Engineering, <a href="http://www.afashionbuy.com">Wholesale LV handbags on sale</a> 2001,122 (2) :30-31. Author: Wen Jin Wei (1963 A), male, senior engineer, is mainly engaged in laser processing and research. Phase encoding step frequency signal ambiguity function analysis Such as âˆž âˆž âˆž if 0 if âˆž such as 2, â— 2007 å¹´ 3 æœˆ 36 Fire Control Radar Technology Volume 6 Conclusion This paper describes a millimeter wave Wilkinson power divider design principles and methods that will power splitter quarter-wavelength transmission line with LC n-type equivalent circuit model to the equivalent, with the microstrip high-and low-impedance line to achieve the inductors and capacitors. Its dimensions than conventional power splitter greatly reduced, and indicators to achieve the level of conventional power splitter. Therefore, the design principles and methods of work with a certain reference value. References: [1] R. K. Gupta, andW. J. Getsinger, Quasi-lumped-element3-and4 a portnetworksforMICandMMICapplications [M]. MTT-S. Int. MicrowaveSymp. Dig ,1984,409-411 .2] Hirota. T. , A. MinakawaandM. Muraguchi. Reduced-SizeBranch-LineandRat-RaceHybridsforU-niplanarMMICs [J]. IEEETransMTT ,abercrombie uk,1990,38:270-275. [3] Wangdu. Microstrip lumped parameter components and its application [J]. Telecommunications technology, 1988, (1). F4] seeking gold level. Semi-lumped ring bridge design [J]. Microwave Journal, 2003, (2). (Continued from first page 7O) 5 Conclusion airborne radar signal processing system development has a very important military significance. Linear frequency modulation system in which the moving target detection is signal processing in airborne radar clutter suppression is very effective means, without the premise of increasing the sampling rate, step frequency FM signal can achieve a lot of bandwidth,tiffany canada, and thus can to obtain high range resolution, can detect the fine structure of the target. This can be used for target identification. Target recognition system hardware is designed to leave the room, the four pulse integrated DSP capability wealthy enough to complete this work, identification of target classification method needs further study. References: Ell LIU Shu-ming. Su Tao TigerSHARCDSP application system design [M]. Beijing: Electronic Industry Press, 2004,5. [2] ADSP-TS101TigerSHARCDSPProcessorHardwareReference [M]. AnalogDevice. Inc. April2003. [3] Sun Boji the standard bus universal multi-DSP signal processing template design [C]. Xidian University, master's thesis. [41 Swiss cow airborne radar signal processor design [C]. Xidian University, master's thesis. [5] Lee delay. Dragon stepped-frequency radar target to the redundancy algorithm [J]. Journal of Electronics, 2000,28 (6). (Continued from page 65) 2] Hai Tao Hong, Gui-Sheng Liao, Wang Ling. Hybrid genetic algorithm based on m-sequence waveform design [J]. Radio Science, 2004,19 (3): 253 - 257.3] LIN Mao-yung. Keyou An. Radar signal theory [M]. Hefei: National Defence Industry Press,ed hardy bikini, 1984.4] Zhao Bin. Liu Changyu, right too Fan,ray ban occhiali, Xu Rongqing. High-speed target phase encoding step frequency signal analysis [J]. Systems Engineering and Electronics, 2005. 27 (2): 284 - 287. [5] JinKai. WangWei-dong, WangDong-jin. Thestudyonanewradarwaveformwithhighrangeresolution [J]. ICSP'04Proceedings: 1957 ~ 1960. [6] G. S. GillSimultaneouspulsecompressionandDopplerprocessi ngwithstepfrequencywaveform [J]. electronicsletters7, 1996. 32 (23): 2178 ~ 2179 [7] Dragon. Stepped-Frequency Doppler radar signal analysis [J] Modern Radar, 1996,18 (2): 31 ~ 37.8] Dragon,-t-~ K, Pei-Kun. FM radar signal analysis and processing step [J]. Electronics, 1998,polo ralph lauren,26 (12): 84 - 87.78 BaxSr (1-x) TiO3 multilayer spectroscopic ellipsometry study alandelectricalpropertiesofBaTiO3thinfilmsprepared bychemicalsolutiondeposition. SolidFilms, 1999,abercrombie and fitch outlet,346:2 l2-22523lYehMH, LiuYC, LinIN,ray ban occhiali, eta1. Electricalcharacteris. ticsofbariumtitanatefilmspreparedbylaserablation. J. App1. . , L993 ,74:2143-2145 [4] ChoCR, ShiE, JangMS,sac burberry, eta1. StructuralandelectricalpropertiesofBaTiO3thinfilms onSi (100) substratebyhy-drothermalsynthesis. J. J. App1. P. , 1994,33 (9A) :4984 ---- 4990 IntroductiontoSolidStatePhysic. 6thedition. NewYork: Wilev. 1986.292-294 BasharaNM. EllosometryandPolarizedLight. North-Holland: Amsterdam ,1977,186 - 190 [7] MODang. SolidStateOptics. Beijing: HigherEducationPress (Mo Party. Solid optics. Beijing: Higher Education Press), 1996, l36 a l38 [8] JaspersonSN, SchnatterlySE. Animprovedmethodforhighreflectivityellipsometrybas edonanewpolarizationModulationtechnique. Rev. Sci. , N beat um. , 1969,40:76 l a 767 [9] ColardS, MihailovicM. Optimisationofexperimentalcon-ditionsforvariableanglespectroscopicellipsometryan alysis. ApplicationtoGaAs / (Al, Ga) Asquantumwellcharacteriza-tion. Mat. Sci. Eng. B-SoZid, 1999. B66 :88-91 [10] BlaineDJ, WilliamAM, JohnAW. Opticalanalysisofcomplexmuhiplayerstructuresusingm ultipledatatypes. ThinSolidFilms ,abercrombie and fitch,1994,253:25 - 27 [11] LIHui-Qiu,nike factory outlet, ZHANGYue-Li, WENJin-Hui, eta1. Opti-calpropertiesofleadlanthanumzirconatetitanateamorp housthinfilms. J. InfraredMillim-Waves (Li Qiu, Li Zhang day, Wen Jinhui, etc.. PLZT amorphous thin-film optical properties of Infrared and Millimeter Waves) ,2000,19:201-204 [12] YANGSheng-Hong, YuZhao-Xian, LIHui-Qiu . eta1. Simulatedannealingoptimizationalgorithmforinvertin gel-lipsometricspectra. InfraredMillim-Waves (Yang Sheng-hong, Yu Zhaoxian, Li Qiu, et al. Simulated annealing inversion of values â€‹â€‹in the polarization spectrum of applications. Infrared and Millimeter Waves) ,2000,19:338-342 Approximate value of the complex signal model and hardware implementation And digital signal processing technology tightly integrated product. Since 1980, Since the launch of the first generation single-chip DSP, access Ah alarming development,mulberry outlet, has launched four successive generations, has been widely used in radar, sonar, communications, automation and voice, image processing and other fields. TI's TMS320 family of products is the United States, it has a very good performance, especially for designed specifically to complete the computation-intensive digital signal processing algorithms for high-speed microprocessors and micro-calculator. As the internal structure or the use of a modified Harvard Harvard architecture, emphasizing the overall system speed. Q'Q, TMs32O2O is TMs32O series of second-generation product, Fig. A practical use of look-up table modulo circuit TMS320C25 structure is developed on the basis of the TMS32020, it cycles through faster and improved additional features increase the functionality of DSP algorithms. TMS320C25 has f00ns and 125ns instruction cycle in two forms, often using l00ns instruction cycle in the form, this form of work than the TMS32020 ashamed twice as fast as most instructions in a single cycle, thus processors per second l never instruction capabilities. It uses 1.8FamCMOS process, the clock frequency of 4OMHz. The current development of TMS3Z0 series chip has been widely appreciated by its composition of many real-time signal processing systems, high-speed, flexible,polo ralph lauren, multi-functional role. I frJ high-speed DSP chip TMS320C25 to achieve the modulo operation, the calculation process can be expressed in Figure 5, this method is generally used by the TMS320C25 pipelined structure consisting of a signal processing system, the computing time is about f [as so. 35 modulo operation flow chart of Figure 5 Conclusion 4 5 4.1 Static tests were entering a different test and '7, digital multimeter observed value of output you die, whether the results were consistent with the values â€‹â€‹of reason perish. If using multiple sets of typical data calculation results with the theoretical value ~ cause, you can dynamically test. 4.2 Dynamic test Dynamic test circuit in Figure 6 is a block diagram. Signal source is high-speed E-PROM and address of the generator components, which mainly produces two identical quadrature amplitude of the pulse train signal, shown in Figure 7. Test, the first adjustment of UP UP relative to the delay (latency achieved by 74LS123) to position shown in Figure 8 Qi, and observing whether the output pulse train for the first-class rate, and pulse rate is equal to the input signal amplitude . Test expression 'degree, it can slowly reduce the CP! Relative to the CP. Division I when the delay t,mbt outlet, Yan measured , The signal just chaos,ray ban zonnebrillen, this time t is the modulus operation speed. Discussed above, three tq, modulo operation circuits, tested fully comply with design requirements. We are the system requirements, it In this paper, seeking a better approximation of modular arithmetic formulas. This general problem is to meet the engineering requirements. If the practice requires a higher accuracy,tory burch outlet, the from I to o. Divided into multiple segments, according to the principles of equiripple linear approximation error, this article will not repeat them. This paper presents three hardware circuit, according to different applications, select the appropriate one when the AH. Can be expected, with the rapid development of digital integrated circuits, find the real concept of modular arithmetic in terms of speed and accuracy will be higher and higher, will be increasingly easy to achieve. (Continued on Cover 3) 36 (on the next page 36) Ol â–* Osaka stupid 'o Figure 7 modulo input and output l (411 boats a form of IM (~ waveform diagram 8CPl and CP2 References (1) ABakersd. ZenMagnitudeapPr . ximati. nsandtheirdetecti. nstatistics.IEEE, AES a 12jan.1976.No.1 :86-89 (2) A. E. FilipLinearapproximationsto ~ / x + yhaVingcharacteristicslEE, AU a 21Dec.1972 ~ 554-556 (3] Bo: approximate calculation of the complex modulus of Northwest Telecommunication Engineering College ,59-68 (4] Technology Radar URUMQI, June 21 Xinhua 19 to 21 August ,guess bags, 2011 China International Camping Congress ( Xinjiang Station) race in the beautiful Grand Canyon of Xinjiang Tianshan held . correspondents in 20 news conference in Urumqi was informed that in 2011 China International Camping Congress ( Xinjiang Station) race by the State General Administration of Sport Climbing Sports Sports Management Center and the Xinjiang Uygur Autonomous Region Council, is this year China held the largest camp of the General Assembly contest is one of Xinjiang for the first time to organize such large-scale outdoor events. More articles related to topicsï¼š abercrombie and fitch outlet China will send the Daya Bay Nuclear Power stage tiffany canada Reference gas tests of asphalt concrete Xieqiang Theory and Practice gucci sito ufficiale A diamond worth 200 million yuan Linyi Museum burberry pas cher Low concentration of organic acid absorption solution caco3 FG MBT CipÅ‘ 500kv Current Transformer Explosion Analysis burberry outlet ac s800 inverter in copper crane AC S800 inverter in copper crane Detection device status information, the drive status information, and control relays, contactors, actions. PLC control cabinet, control cabinet placed in the beam frequency electrical indoor soil, the resistance on the brake beam placed in the cabinet. (3) communication module for inverter and PLC communications,lunette ray ban, command and control the drive speed command via Profibus-DP bus is downloaded to the inverter to drive the body to work properly. System structure shown in Figure 1. 2.4 Inverter and PkC communication system uses the field bus used in lieu of a traditional analog or digital control of inverter. System, the car and drive through the selection of lifting RPBA a 01 module to the Profibus-DP bus. Considering the real-time data transmission and stability, the system selected PPO-5 as a data transmission format, rate selection 187.5kbps. Using bus architecture, the system was further optimized. Mainly in the following areas: (1) The wiring is simple. Just a twin-core shielded twisted pair, while the other means at least four cables, thus reducing maintenance. (2) given stable. Given to avoid the analog signal drift due to electromagnetic interference and other factors caused the jitter, so the speed for a given system is more reliable. (3) speed continuously. Switch as opposed to the use of speed for a given system, the speed given by a discrete amount of quantitative change becomes continuous, so the inverter can fine-tune the speed of receiving instructions from the PLC to achieve continuously variable transmission. Bus structure shown in Figure 2. Brake control is usually 2.5, hoisting mechanism using time delay relays brake, but the delay time is difficult to determine. If too long, resulting in long motor stall, and start too fast at light loads; time is too short, may be overloaded when the motor torque due to insufficient slip hook. To this end, the choice of 111,111,111,111 - ä¸€ä¸€ 1,111,111,111,111,111: the instructions, the alarm signal:: PLC related to the control loop signal; carts ready: detection signal, the linkage table:: run, fault signal; car ready to run,ralph lauren paris,: command signal, the output control:: Fault signal - system signal: a 26 a signal to the PLC-related control circuit; main from the ready, running, fault Figure 1 System block diagram cart lifting position detection data position detection data and technology issues the I [AC 800 cents in the copper converter crane Shanghai Electric Technology (2008No.1) Remote I / 0 drive car lifting carts drive position encoder in Figure 2 Structural diagram of the bus ACS800 drive torque and the torque support Pre-validation, the system that points back to the PLC, to ensure that the motor before the brake Pre-torque. All agencies are using ABB's brake the drive speed monitoring function. Braking,tory burch outlet, the drive first gear, and gives the low state, the state only when the PLC to read the brake in order to achieve a soft braking, increasing the safety of starting and braking, to improve brake life, reduced work body impact. 2.6 frequency interference caused by frequency of use of the system,mbt outlet, will inevitably cause some interference. First, the inverter frequency interference generated during startup and operation of the harmonics of the transmission grid disturbance caused by voltage distortion and affect the quality of power supply; the second is the inverter output will produce a strong electromagnetic radiation interference, affect the normal operation of peripheral equipment. Therefore, the interference must take some reasonable measures to ensure the normal operation of the system. Interference suppression generally have the following ways: (1) plus isolation transformer. Mainly for conducted interference from the power supply, most of the conducted interference can be separated prior to the isolation transformer. (2) the use of filters. Filter has a strong anti-interference ability, as well as to prevent interference with the device itself to the power transmission, and some absorption of both spikes. (3) the use of output chokes. Between the inverter and the motor to increase the AC reactor to reduce the inverter output when the energy transfer process in the line of electromagnetic radiation, affecting the normal operation of other equipment. 3 Conclusion copper crane is developed for the copper production process design. The technology is quite advanced. Copper crane system with frequency control,burberry outlet, crane technology can not only meet the requirements and overcome the traditional speed control system problems. At the same time, you can set the drive parameters are several protection features make the system more complete protection. With frequency control system, although the relatively large one-time investment, but energy conservation, improving productivity, reducing operating costs, improve security and other terms, that is considering the performance, price, economic and other factors, is worth it. A 27 - More articles related to topicsï¼š abercrombie and fitch outlet China will send the Daya Bay Nuclear Power stage tiffany canada Reference gas tests of asphalt concrete Xieqiang Theory and Practice gucci sito ufficiale A diamond worth 200 million yuan Linyi Museum burberry pas cher Low concentration of organic acid absorption solution caco3 FG MBT CipÅ‘ 500kv Current Transformer Explosion Analysis abercrombie outlet Create opportunities for the wo ,tory burchh outlet Create opportunities for the world to share opportunities sinoces Import and export co-host 2009 China International Consumer Electronics Show (SlNOCES) ended in Qingdao. The grim situation for the financial crisis,ed hardy swimwear, SlNOCES highlighted the It is reported that the Expo brings together more than 450 domestic and foreign exhibitors, more than 700 buyers, hundreds of senior government and enterprises and nearly 90,000 professional visitors, 300 balance new focus on appearance, trade turnover of 2.27 billion yuan. Shrinking consumer demand as the global market,ed hardy bikini, the consumer electronics industry mobility decreased, resulting in most of the corporate sales and profit margins decline, to grasp the realization of the current trade consumer electronics companies the opportunity to become the most pressing needs. In a series of Chinese government policy to encourage industrial revitalization and root out the Chinese market opportunity to attract the global consumer electronics has become an important driving force gathered SlNOCES. In this regard, the fair set up home appliances,abercrombie outlet, 3G and other exhibition by domestic and foreign enterprises of great concern. Haier, TCL, Hisense, Midea, Panasonic and other home appliances more than 70 successful companies have demonstrated their latest upgrade the enormous business opportunities. To meet existing market demand, based on the grasp of industrial upgrading to the new market opportunities has become an urgent global consumer electronics demand, SIN0CES boost market-oriented new products,abercrombie paris, ability to quickly firms. During the exhibition, 320 companies exhibiting new balance, of which 80% is the first exhibition. For example, the Internet and Samsung supports CMMB mobile TV-enabled 3G phone in the 3G era to demonstrate its ability to apply new technology: Lenovo launched the thinnest at only 1-inch desktop machine and dual-screen computer; TCL global devaluation mitv-E television network to achieve cross-border interconnection technology market applications: Haier launched the world's first effective megapixels, 3x optical zoom and optical image stabilization feature. Ministry of Commerce Vice Minister Jiang Yaoping that this year's electricity crisis in the financial situation of Fair fully embodies the Chinese government introduced a series of home appliances and other policies to expand domestic demand growth to bring positive effects. Luo Qingqi, the electronics industry experts believe that this year's 81NOCES not just show the concentration of industry technology trends, become stable and sustainable development of the security industry platform for the industry's healthy development of the SeC01Y__I â— lS ï£µ?%%? S Guo eu (`o Tong Naotong% ï£µ |? 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As the microcontroller has a good programmability, therefore, can use the same main circuit board and components; and the use of different sensor elements, the information collection functions. Test equipment for three different functional requirements, write in their microcontroller applications. Form has the advantage of this design: three test instruments subject to the same circuit (except that the sensors and other peripheral circuits and the microcontroller software), not only to facilitate the circuit design and maintenance, saving manufacturing costs, and easy to implement test equipment communication between functions. Three test instruments are used AT989C2051 microcontroller, using the 4.5 LCD display, LCD driver module selection 7211AM special driver manifold. (2) signal acquisition method and from the tester signal to run using the general switch button, the circuit off by collecting the signal. Push-ups and sit-ups tester, as infrared signals to detect the completion of the action. Figures 4 and 5 respectively, the infrared transmitter and receiver circuit. Push tester signal acquisition method: send a technical 7lt by the infrared feature single-chip tester in the national constitution on the application of Shanghai Electric Technology (2004No.1) 4 5 infrared transmitter circuit transmitting infrared receiver circuit infrared radiation device, receiving device to receive infrared. Action to do push-ups, body up and down movement, movement to a high point, the body cut off the infrared transmitter and receiver, cut off the signal generated in the circuit, the system cut off the cumulative number of times, and on the LCD display. Sit-ups tester signal acquisition work is more complex. According to the test requirements, need to adopt two sets of infrared transmitters and receivers were placed above and below, in order to avoid the action measured by the sit-ups is not in place. Alternately up and down the sensor response, a first alternate for the sit-ups,tory burch outlet, the system receives signals, for counting. Automatic timing system, when the time is 60s, the buzzer sound, while the system is no longer the cumulative number of sit-ups. Figure 6 for the shuttle run test equipment circuit. Test equipment for sit-ups, just the two IR receiver to replace the switch signal output lines, access and INTl INTO MCU pins. Test equipment for the push-ups, just a set of infrared receiver signal output line access INTOII available. 2.3 the choice of programming language programming language commonly used microcontroller assembly language or C language. Faster execution of assembly language for real-time requirements of the occasion. The poor readability of assembly language, preparation and correction time-consuming. C language is a compiler-based programming language, taking into account a variety of high-level language features, and with assembly language functions, with good portability, can be directly implemented on the system hardware control. In addition, C language program with a sound module structure of the program, so as to software development using modular programming method provides a strong guarantee. Written in C target system software, greatly shorten the development cycle, and significantly enhance the readability of the software, allow for improved and expanded. Therefore, the measured 'Qi instrument development, select the C language as a programming language. The test equipment and computer communications,mbt zapatos, the use of bus-master-slave multi-machine system, that computer as a host, the test equipment microcontroller as a slave. Using the standard RS485 serial bus for data transmission. 3 Conclusion on the tester in the national constitution as the core of the system using single-chip control unit, low cost, simple circuit. Unified circuit board, can greatly reduce production and maintenance costs, and ensure the reliability of communication between the test equipment. Trial products, test results show that the three test instrument accuracy, reliability and economy are met the design requirements. References [l] Ma Zhongmei and so on. C-language films account for machine application design Beijing: Beijing Aerospace University Press, l999 [2] Yuhua Fang, Liu. Microcontroller and LCD display module hardware and software interface technology,ed hardy bikini, LCD and display, 2003,2: l8 [3] Li Zhonghua. A remote data acquisition module design, chemical automation and instrumentation. 2003,tory burchh outlet,2:3033 Shanghai Electric Technology (2004No.1) chip tester in the national constitution on the application of technical problems 34 cents witch build a twenty-one hundred eleven decline once More articles related to topicsï¼š abercrombie and fitch outlet China will send the Daya Bay Nuclear Power stage tiffany canada Reference gas tests of asphalt concrete Xieqiang Theory and Practice gucci sito ufficiale A diamond worth 200 million yuan Linyi Museum burberry pas cher Low concentration of organic acid absorption solution caco3 FG MBT CipÅ‘ 500kv Current Transformer Explosion Analysis jeans diesel Circulating fluidized bed boiler tech ,jeans diesel Circulating fluidized bed boiler technology of installation ) Fly ash characteristics of the circulatory system work test. Adding about 300mm thick bed of fine ash (particle size <1mm), start the fan and a blower, blowing bed charge. Stop the fan, check Supplement Chen Hao: circulating fluidized bed boiler technology of installation check separator 7 and the separation of U-return valve material situation. Since the above test is run to adjust <a href="http://www.afashionbuy.com/">lv handbags dropship</a> the boiler when a test basis, must be strictly in accordance with regulations to ensure the accuracy of test data for boiler safety and stability of the economy provide a reference. 4 Conclusion In this article, the circulating fluidized bed boiler and the main components (on page 3) full-wave Fourier algorithm has a strong filtering capabilities, the amount collected for various periods, fundamental or higher harmonics. But its response was slow, can not meet the requirements of fast acquisition, more power calculations for data acquisition, real-time requirements or other poor, high precision applications. 1.2 DC-DC samples collected by sampling the analog transmitter is rectified, the AC voltage and current signals into a DC voltage, that is D converter sampling the analog DC signal. Either current or voltage acquisition, data processing through the rectifier, the P, Q, COS, Wh, Wvarh data is the result of current and voltage sampling calculated, and then through the sample current and voltage values, with some method derived. 2 AC and DC sampling of the advantages and disadvantages of sampling in power system operation, the appropriate sampling method to select the correct critical AC and DC sampling methods and sampling precision due to sampling differences, there are advantages and disadvantages. AC sampling real-time, phase distortion is small, less investment, easy maintenance, COSCO terminal unit in the power system to distributed and multi-sampling-based exchange. However, the complexity of the algorithm the initial exchange of samples, accuracy is also difficult to improve, there are certain requirements for ambient temperature, while D converter conversion speed and higher sample and hold, in order to ensure the accuracy of the period, must ensure that adequate sampling points, and sample calculation procedure is relatively complicated. AC power system data sampling is unimportant for the power system in real-time data, if you need to improve data accuracy and speed, you need to use the DC sampling. DC sampling without sampling device, so the sampling period and speed without limits, it is collected through the transmitter of the rectified direct traffic, then D converter into the host, this method is software designed to be simple, easy calculation, the sampling Just do a percentage of the value of the exchange, the value can be measured, the data to refresh the construction of important parts of the refractories have a preliminary understanding on the future of the same type of boiler installed to provide a reference. While avoiding the construction process due to the construction of the boiler caused by an irrational quality of the installation problems. References: [1] CEN method. Circulating fluidized bed boiler design and operation of the theory [M]. 0j0. Speed, with the component technology development, stability, greatly improved accuracy, and has advantages of a short sampling period. Thus, in the early stages of development monitoring systems, DC sampling has been widely used, but this method has its own shortcomings: â‘* In order to improve the response rate, time constant of the transmitter must be specially designed, which should not be widely used; â‘¡ change transmitter with harmonic measurement error; â‘¢ with large time delay, it is difficult to be measured in time reflect the mutation; â‘£ monitoring system accuracy and precision directly affected by the transmitter stability. As the DC power system sampling data sampling in the lack of AC sampling technology in recent years has been rapid development, sampling, compared with DC, AC sampling with real-time, phase distortion is small, easy to maintain the advantages of some of its original disadvantages, such as algorithm complexity, difficult to improve accuracy, higher conversion rate of D, etc., with the development of computer technology, exchange of samples and gradually got less than the original cover. AC sampling its excellent performance, is gradually replaced by the DC sampling. 3 Conclusion AC sampling a variety of algorithms, in practice, according to need, combined with the characteristics of various algorithms to make the right choice. Power system for the actual case, the exchange of samples with high precision, real time, will be widely used, thus greatly improving the power system automation and control systems, intelligent automation. References: [1] Zhang Hong, Wang Chengmei. AC power system commonly used sampling methods compare [J]. North China Electric Power Technology, 1999 (4) [2] HUANG Chun, Yi-gang, Jiang subgroup. AC synchronous sampling method of analysis and improvement [J]. China Electrotechnical Society, 2002 (9) [3] Zhang Yanping, Li Yihua. AC power system computer monitor sampling algorithm [J]. Changsha University of Electric Power, 2000 (8) More articles related to topicsï¼š guess shoes All-digital pre-shrinking machine control system design polo ralph lauren Taian pumped storage power stati puma shoes mathcad motor design in a simple applic ï»¿louis vuitton wallet Yemeni government troops trapped on two fronts gucci sito ufficiale Marginal line loss and its application mbt zapatos Intermediary agency examined rampant i ,abercrombie Towns in the middle of a Mr. He has many years of unpaid annual fare, most recently through the point of vehicle maintenance for their truck to do the annual review. 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Since mid May this year, have examined the extent of the loose management, agency cost has dropped to 500. agency costs rose to 800 yuan a few days ago, Mr. He's truck is this way to spend 500 yuan by the annual review, he said, because people familiar and maintenance point, his car has been received only 500 yuan last year Other people may have to pay 800 yuan or 1,000 yuan. vehicle maintenance points as Agency Informed sources said that since the annual vote in Dongguan since the implementation of agency's annual agency began to appear. The main target of these intermediaries are unwilling to pay the fare in the cargo business owner, as well as vehicles for too long and sad age-related annual maintenance of private owners. Miles Automobile Company and the inspection station, but a few meters away. Reporter staff leave the company said in a private car for two years unpaid fare, whether paid by the company's annual ticket is not the case for annual fee. minivans each year to pay the annual cost of tickets is generally 1000, medium and large trucks in ticket costs 4000-8000 yuan range. Agent examined the price, so truck owners are generally acceptable. the staff member said a few months ago also, 2 tons of vehicle agency fees of 290 yuan, but recently very strict,jeans diesel, did not fare paid was not examined too, but over a period of time they might be agents of. Dongcheng District, Mr. Wang has a car older than 15 years of private cars, required to be examined once every six months. In recent years,ed hardy bikini, every six months, he went to look for an intermediary agency inspection station near the annual, every time passed. yesterday morning, reporters came to town motor vehicle inspection station, in charge of annual non-payment of annual ticket window asking whether you can do annual fee. Staff said that the current was still present to vote for that annual fee. the reporter in the detection of more than Repair shops near the station to inquire about. Many shops have said that some time ago can be agents, but the wind is very tight recently, agency examined is difficult, but there are channels for Repair shops. Hundred meters away from the inspection station vehicle maintenance services of the Ministry of Finance victory, correspondents said the unpaid leave in the same fare,MBT Shoes Clearance, ask whether the agency examined. The service head of the Department while playing a telephone inquiry, told reporters that the agency can, but the cost rose to 800, not counter-offer, if other materials are complete, two or three hours after finishing all the formalities can be. The channels through which accomplishing this, and he refused to disclose. Intermediary agency examined rampant illegal Nanfang Daily News unpaid traffic ticket fee was not to pass the examination, examined through irregular channels, the intermediary agency came into being. Reporters yesterday found that in urban areas and Towns near the vehicle examined, were examined intermediary agent for the owners to provide the services, prices ranging from 500-1000 yuan,mbt zapatos, a number of annual vehicle maintenance organization or a point direct agent of such business point. Insiders said the agency examined the phenomenon of illegal agency has been going on for many years, agency costs as the department of Dongguan Vehicle Management tightness and float management. correspondent subsequently detection station door asking, asking whether there can be low-cost intermediary agents examined. An inspection station staff said, can go to the inspection station next door to Miles Automobile companies try. More articles related to topicsï¼š guess shoes All-digital pre-shrinking machine control system design polo ralph lauren Taian pumped storage power stati puma shoes mathcad motor design in a simple applic ï»¿louis vuitton wallet Yemeni government troops trapped on two fronts gucci sito ufficiale Marginal line loss and its application MBT CipÅ‘ Large power plant ups device configuratio Large power plant configuration of UPS devices of To difficulties. Figure 2 spare each way 2. Two units set up three set up a unit UPS unit UPS unit two ways, as described above, there are some problems, but also seemed more in the investment a waste, because most of the time two UPS are light-load operation, and any Taiwan to be disabled for some reason,abercrombie paris, after all, very few opportunities. The two units set up three ways both UPS units to ensure high reliability, and investment, should be a more reasonable choice. The wiring configuration, there are two options to consider: (1) automatic switch; (2) manually. 2.1 two of one-way auto switch automatically switches the two prepare a wiring shown in Figure 3. The principle is: load load a. The output of the # 0UPS spare as a working UPS is # 1UPS, # 2UPS bypass power operation automatically switches, power supply reliability and high quality, and any abnormal UPS can run out without affecting the long-term supply . b. Meanwhile, to ensure the reliability and flexibility of operation, bypass the power isolation transformer and regulator set up to reduce the external power supply cadres. The other design alternative may also be considered that # 0UPS bypass power is divided into two, were taken from the different units of the power system; c. Part of setting specific electrical interconnect switch cabinet, the switch blade fuse-switch can be used, simple,MBT CipÅ‘, reliable, and low failure rate. Shanghai Electric Technology 2O02NO. 221 3 two of one-, two auto spare wiring diagram 2.2 Preparation of a manual prepared by a manual switch means two switch principles of wiring shown in Figure 4. a. UPS is the work of two # 1, # 2 can maintain the principle wiring, spare that # 0UPS bypass and DC are two, respectively, with corresponding power supply UPS work. b. When one of failure, such as # 1UPS due to automatic or manual maintenance bypass switch to run the machine,oakley sunglasses, manually switching the way, first to # 0UPS and # 1UPS bypass parallel operation, then stop # 1UPS, after # 0UPS Go to UPS bypass the normal way. C. When work resumed after UPS maintenance should also be used for manually switching, the first UPS in the bypass in parallel with the backup running, then stop backup UPS, UPS go to work after the normal way of UPS. 2.3 two prepare a comparison of automatic and manual options below to compare the above two: 22 Shanghai Electric Technology 2O02NO. An automatic switching device 2 two advantages: First, the wiring is simple, can be automatically switched, high reliability; Second, the bypass are a power system, three UPS easy to synchronize, less prone to non-synchronous operation of UPS problems; Third, when the switch is simple troubleshooting, side by side without risk of false power. Drawback is that for some reason need to spare UPS maintenance outage, the UPS will lose two working bypass standby power, reliability down, then you can consider increasing the switch all the way from the regulator directly connected to the switch cabinet cabinet standby UPS input, this increase the wiring complexity. Two prepare a manual switch has the advantage of wiring the original design work the same UPS, the normal operation mode of the device completely independent of each other. The disadvantage is more used to switch power distribution equipment, and need to switch manually, the operation should be tied to prevent the misuse of different power, so the vote must fill out the operation and operate in strict accordance with operation of the ticket. Way more than the automatic increase of a voltage regulator, isolation cabinet, a larger investment. First, prepare a conclusion Figure 4 II, manual wiring diagram of a spare unit set up two UPS units will not only invest in large, technically there are some practical problems,burberry sale, thereby achieving a more trapped 2tIPS load 1t. tPS load is difficult, especially suitable for technological transformation projects. The two units set up three UPS devices easier way to achieve not only high reliability, and investment, without affecting the unit into operation after the technical transformation project should be a more reasonable choice. As for what kind of wiring using two of one-, two wiring advantages and disadvantages,burberry pas cher, should be based on the actual circumstances of each plant. (Continued from page 8) with half the number of turns D - two and a half with an average diameter of the airway between the windings m â…¡ - two and a half the distance between the + two-phase windings and a half-phase windings to the thickness and width / 3cmp - Rockwell factor - - Reactor height inIn CONCLUSIONS The product passed the factory test, and withstand repeated fault running ever since. The test value and design value in Table 1. Table 1 Experimental values â€‹â€‹of E with temperature than the design project design value dagger test value of zero sequence impedance n43. 65 no-load loss w972935 load current% 1.3O. 77 load loss w23022O67 Thus, the use of winding technology can produce wider adaptability, operation and maintenance more convenient dry-type grounding transformer, it also combines the anti-winding dry type transformer short-circuit capability, the advantages of high mechanical strength . Shanghai Electric Technology 2OO2NO. 223 More articles related to topicsï¼š guess shoes All-digital pre-shrinking machine control system design polo ralph lauren Taian pumped storage power stati puma shoes mathcad motor design in a simple applic ï»¿louis vuitton wallet Yemeni government troops trapped on two fronts gucci sito ufficiale Marginal line loss and its application sac burberry 200mw turbine Burnt Analysis Analysis Burnt 200MW turbine-generator Kinetic energy, reducing the power flow of oil, turbine oil after the oil shortage caused by the main entrance of hydraulic pump down, a lot of oil up to the entrance of the main oil pump, that is the main oil pump large Zhi extract oil. Oil pressure caused by abrupt reduction of tile oil is not enough and r Burnt. Due to exchange oil pump before the oil cooler (oil cooler pressure drop of about 008MPa) from the three-meter mark at the pump to increase the export side by side with the tanker (see Figure 1) oil is the oil cooler master control after 8 m elevation at the ( only from a tile height of 2.5 m along the length 4.5 meters) up to the entrance of the main oil pump, oil is pumped after the main pump, the oil shortage and oil-watt lower (oil sampling point that In the tile before) is not equal to the hydraulic oil system are low. Turbine speed is not reduced due to oil, oil booster pump is still working, the outlet pressure is also low (off exit door up 3.2kg/em) King AC pump outlet Check the door to withstand (AC pump exit doors closed when the oil pressure 2.8} / cmj), although the exchange interaction can not be Dayou pump. In essence, the hydraulic oil system is divided by the gradient Buna: l increase temporarily the main hydraulic pump inlet pressure drop, coupled with the oil cooler pressure drop, etc., is the exchange of pumps and pump outlet pressure increases, the tile is not broken oil but with less oil, the tile at the hydraulic oil pressure below the contact tube. DC Ling tubing connected to the oil cooler though, the outlet pressure but because of its 1.8kg/cra, empathy can not Dayou. High-pressure turbine start with the oil pump installed in the main tank,mbt outlet, the oil pump outlet and turbine inlet only 2 meters long and along the same elevation, start the hydraulic pump outlet up 2MPa, when the oil pressure decreases, the cast starts pump, improved oil turbine working conditions, ether open the critical point, increasing the power the oil flow rate, and up to the main large oil pump system, reducing the oil pump to the main entrance of the Sun, oil,abercrombie and fitch outlet, oil turbine speed increases, the booster pump output increases big oil is more abundant, and thus to the oil not only restored but also high before the accident (see Table I). Six recommendations: 1. Although the shot noise oil cooler, but more reliable than the tanker pump, if the accident had shot oil is running properly modified. 2. Tanker pump manufacturers recommend re-design can be a single with two coaxial turbine oil booster pump, but also two oil-er round with two booster pumps, lubricating oil and the speed to separate the oil, and strictly carry out field trials to adjust given characteristics, to ensure reliable supply. 3. Now throw the brother of plants using tankers pump manufacturers should be invited to the measured curve to the scene together, so that the tanker to run the pump in the stable area and do something against Burnt respect of measures to reduce hydraulic pump when the vote starts. Hui Zhu Harbin No.3 Power Plant hoe January 5,mulberry outlet, 1988 g delicate one. Changes in parameters of the main hydraulic pump inlet tables the main oil pump hydraulic oil pressure oil export speed turbine Speed â€‹â€‹Remarks smell when oil pressure (MP) oil (MP.) (MP.) (MP.) (r / min ) 86.12.290.132.0.00.125 formally handed over the production 88.1.10.0951.91.860.115314087.8 mounted tachometer 0.0951.91.90.11531403 February 1 January 1 Day 0.09l-91.890.1153llO â— January O. O9, 1.91.75). 113 ~ O. 115314O5 month overhaul in January cited jO. 11.91.90.1 ~ 0.105314O ~ 917O6.2 Yardway t7 helmet shield overhaul 1 0.09l. 91.9085 ~ 0.099140 ~ 9170-7R Day 0.071.881.850 '. 0,diesel store,731,707 stomach 7 books _5I confrontation 0.215-1.061.9B0.175917 ~, Yun after pump start date of July 9, l} machine charm stupid pumping pressure rice â— 7 æœˆ 1O days 0.111.971.850.109170 .7 helmet 20 0.081.91.850.0931 known on July 3 å£ 0.0751.91.850. If 3170E1 Â· 3 æœˆ 5 ugly. 071.91. g30.00 sin 91701, r8 May 1O days 0.07t. 91.8O0.09531708 15 0.0751.91.820.0953I70, 8 æœˆ 2o ugly 0.065 ~ 0.071.91.820.095. 91 708 21 O. 065 ~ 0.07i. 9L. 7 ~ 1.850.09 ~ O. 095317o8 months clamor BO. O on an O. 0S51.91.850. O03 ~ O. 0,973,170 before the accident â— 22 æ—¥ 0 æ—¶ 36 minutes,sac burberry, 0. Od ~ O. 05 sudden hydraulic barrier at 9:37 on the 22nd 0.1759320 vote after starting the pump stud â…¡ twilight 102l03 wife Gui Lo 3 â€‹â€‹Huang drift off Quebec gH: turn More articles related to topicsï¼š guess shoes All-digital pre-shrinking machine control system design polo ralph lauren Taian pumped storage power stati puma shoes mathcad motor design in a simple applic ï»¿louis vuitton wallet Yemeni government troops trapped on two fronts gucci sito ufficiale Marginal line loss and its application abercrombie and fitch Kingview and several Siemens Kingview with Siemens S7-200 in several communication OPCServer by double-clicking OPC. SimatiCNet OPCServer program, the town via Profibus-DP bus protocols and connect to the PLC (4) read with Kingview OPCServer data in the configuration of the king in a city choose OPC.SimaticNET OPC server in the turn page 67) PLC. IPC and distributed control systems PLCIPC & DCS Figure 11 in a combined output expansion technology roadmap while connected to the state, can be an output Y1 to boost output while two will not load KM3, KM4's output, thus saving an output point. 3I2 output combined output combination of technical applications Technical applications of n points is the number of output relays are divided into two groups, each of the number n / 2 ä¸ª, external wiring technology portfolio, so that each group every times there is a relay output, then the can with a (n / 2) X (n / 2) a load, this technique can save (n / 2) X (n / 2) one of n output. Figure 12: The six (Note: n6) output can drive 9 (3X3) a load, saving three output points in the ladder programming, coding method used to determine the need for each load,puma shoes, each load line from the line and column line number where the output relay shared. Figure 12 output combinations applications using technology roadmap 3.3 extension technology disposal outside the machine controller PLC basic unit, expansion unit, extension of the points,abercrombie and fitch, the relative relay a contactor control circuit, the price is relatively high, especially in the need to take a lot of output points, but also to extend the basic unit of the PLC or the need to use a greater number of points dealing with the basic unit, the price issue is particularly prominent, and therefore some control logic is simple and not involved in duty cycle of electrical equipment or work before the loop must first work equipment, with the PLC in the overall control design, these devices can not PLC to control its output, while the use of PLC machine outside the disposal method is still used relays a contactor to be controlled, and thus achieve the purpose of saving the output point,ed hardy bikini, and can greatly reduce the cost of investment. [1 FBI system, sure. These technical methods should be considered in compelling circumstances approach, because in considering the cost of investment and other economic savings, while these technologies will inevitably bring about practical operation, maintenance complex, even non-use is not, and must ensure that the equipment safe and reliable,abercrombie uk, the complexity to a minimum, and pay attention to good design of information storage in order to provide maintenance personnel at any time. References ... Huxue Lin. Programmable controller application technology. Beijing: Higher Education Press, 2001. [2] FX2 series PLC manual. [3] Huang Xinyu, Zhang Furun. Programmable controller applications, saving input method. <a href="http://www.99tz.net/view.php?id=512">Bearing Witness to Haiti</a> Manufacturing technology and machine tools, 2002 (9). Author Guzi Ming (1968 a) male lecturer / research graduate students working electrical automatic control and supply of teaching and research facility. (Continued from page 76) Code create a variable on the screen to connect and run the animation Kingview, the configuration of the king by OPC communication with S7-200 5 Conclusion The use of the king developed a simple configuration, network communication protocols need to understand the details of the advantages, combined with the S7 -200 openness and good compatibility, can create a variety of real-time monitoring system to improve industrial automation. References [1] Liao often early. PLC Programming and Applications, Beijing: Mechanical Industry Press, 2002 [2] Beijing Asia Control Technology Development Co.,oakley sunglasses, Ltd. KING KingView60A training course, 2003 Secretary Ma Liping female author postgraduate research in power electronics and electric drive. Programmablecontroller & factoryautomationI67 More articles related to topicsï¼š guess shoes All-digital pre-shrinking machine control system design polo ralph lauren Taian pumped storage power stati puma shoes mathcad motor design in a simple applic ï»¿louis vuitton wallet Yemeni government troops trapped on two fronts gucci sito ufficiale Marginal line loss and its application ed hardy swimwear China held the world's first tit Zhou Lian pointed out that China 's titanium from the international advanced level of research still lags far behind technology ,ï»¿louis vuitton wallet, specifically in the research process are more on basic research related to insufficient ; common research tools already have , but studies deep enough ; research on new applications not pay enough attention , titanium and other narrow applications . According to the President, Chinese Academy of Engineering, Zhou Lian introduction, titanium is the in the air , land, sea and ultra-low temperature of the universe have a wide range of uses of outer space . China held the world's first titanium will become the world's largest titanium producer and consumer Xinhua Beijing, June 21 (Xinhua) The 12th World Titanium Council 20 held here , which is in China since 1992, will become the world's titanium members of the International Organizing Committee held the first time since World Titanium Council, indicates that China titanium science and technology began to enter the ranks of the international advanced level . However, the rapid development of the domestic titanium industry in the process there have been supply and demand imbalance,puma shoes, sponge titanium investment and other issues. Industry experts said the domestic titanium sponge production capacity of 10 million tons ,mbt zapatos, more than other countries and regions, the sum of production , far more than the actual domestic demand . this century , the rapid development of Chinese titanium industry , the average annual growth rate of more than 30% . Statistics show that in 2001 years ago, the annual output of titanium sponge China only 3% of world titanium production ; By 2008 ,ed hardy swimwear, China's titanium sponge production in one fell swoop the world leader , accounting for about 30% of world production . At present ,abercrombie paris, China has the world's largest titanium producer and consumer countries, 2010 production 54,661 tons of titanium sponge . In addition to expansion in the industrial equipment, conditions, and titanium technology research and applications in China has also made â€‹â€‹considerable progress . 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