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出门在外也不愁&&&热塑性聚氨酯弹性体 在 航空航天科学与工程 分类中
的翻译结果:
查询用时：1.022秒
&在分类学科中查询
&&&&Application of Thermoplastic Polyurethane Elastomer
in Modified Double Base Propellant
&&&&热塑性聚氨酯弹性体在改性双基推进剂中的应用
&&&&A new type thermoplastic polyurethane elastomer for using as binder in solid propellent were prepared with melt
prepolymerization method based on ethylene oxide
tetrahydrofuran random copolyehter,isophorone diisocyanate and 1,4
butanediol.
&&&&基于端羟环氧乙烷 -四氢呋喃无规共聚醚、异佛尔酮二异氰酸酯以及 1,4-丁二醇 ,采用熔融二步法合成了一系列新型的用于固体推进剂的热塑性聚氨酯弹性体。
&&&&According to propellant binder needs, a series of nitroester plastisized segmented thermoplastic polyurethane elastomers(TPUE) based on polyethylene/polypropylene adipate diol(PEPA) as the soft segments and isophorone diisocyanate(IPDI) extended with 1,4-butane diol(BDO) as the hard segments are synthesized.
&&&&针对推进剂粘合剂的需要,以聚己二酸乙二醇丙二醇酯(PEPA)为软段,异佛尔酮二异氰酸酯和1,4 丁二醇为硬段合成了一类能为硝酸酯增塑的热塑性聚氨酯弹性体(TPUE)。
&&&&In order to improve the mechanical properties, a novel thermoplastic polyurethane elastomer(TPUE) with good miscibility with NG and NC is synthesized and used in modified double base propellant.
&&&&为了改善力学性能,合成了与硝化甘油(NG)、硝化纤维素(NC)具有良好相溶性的新型热塑性聚氨酯弹性体(TPUE),并应用于改性双基推进剂研究中。
&&&&Quantitative Estimate of Phase Segregation of a New Type of Thermoplastic Polyurethane Elastomer
&&&&新型热塑性聚氨酯弹性体微相分离的定量研究
&&&&Application of Thermoplastic Polyurethane Elastomer
in Modified Double Base Propellant
&&&&热塑性聚氨酯弹性体在改性双基推进剂中的应用
&&&&A new type thermoplastic polyurethane elastomer for using as binder in solid propellent were prepared with melt
prepolymerization method based on ethylene oxide
tetrahydrofuran random copolyehter,isophorone diisocyanate and 1,4
butanediol.
&&&&基于端羟环氧乙烷 -四氢呋喃无规共聚醚、异佛尔酮二异氰酸酯以及 1,4-丁二醇 ,采用熔融二步法合成了一系列新型的用于固体推进剂的热塑性聚氨酯弹性体。
&&&&In order to improve the mechanical properties, a novel thermoplastic polyurethane elastomer(TPUE) with good miscibility with NG and NC is synthesized and used in modified double base propellant.
&&&&为了改善力学性能,合成了与硝化甘油(NG)、硝化纤维素(NC)具有良好相溶性的新型热塑性聚氨酯弹性体(TPUE),并应用于改性双基推进剂研究中。
&&&&Estimation of formation enthalpy of thermoplastic
polyurethane binder for novel thermoplastic propellant
&&&&热塑性聚氨酯弹性体及推进剂生成焓的估算
&&&&The results show that the TPUE has a higher molecular weight with polyurethane characterization, and exhibits excellent integrate properties to meet requirements of propellant in terms of lower Tg of soft segments,lower processing temperature and good miscibility with nitrate ester and mechanical properties.
&&&&结果表明,合成的热塑性聚氨酯弹性体具有较高的相对分子质量和聚氨酯的结构特征,具有较低的软段玻璃化转变温度和加工温度,具有较好的力学性能,以及与硝酸酯良好的相溶性,具有满足推进剂使用要求的力学性能。
&&&&The effects of TPUE on the mechanical properties, technique properties, combustion and energy properties of nitramine modified double base propellant are studied.
&&&&研究了热塑性聚氨酯弹性体对硝胺改性双基推进剂的能量性能、力学性能、燃烧性能以及工艺性能的影响。
查询“热塑性聚氨酯弹性体”译词为用户自定义的双语例句&&&&我想查看译文中含有：的双语例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。&&&&&&&&&&&&&&
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北京市公安局海淀分局 备案号：110 1081725
&2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社当前位置： &
urethanes是什么意思
中文翻译聚氨酯橡胶:&&&&n. 【化学】尿烷，氨基甲酸乙酯。
例句与用法1.Flexible cellular materials - bonded urethane foam软质多孔材料-结合氨基甲酸乙酯泡沫2.Standard test methods for rubber - microcellular urethane微孔氨基甲酸乙酯橡胶的标准试验方法3.Urethane elastic fiber coral fine hair arounded氨纶珊瑚绒边角4.Standard specification for urethane microcellular shoe soling materials氨基甲酸乙酯微孔鞋底材料5.Urethane , man . it comes from oil聚氨酯，老兄，是油里提出来的6.Using seamless and leakproof urethane frame for good vacuum seal防漏性佳：使用一体成型之防漏圈条，防漏性佳。 7.Polyurethane foam urethane foam聚氨脂泡沫塑料8.Standard test method for microcellular urethanes - high temperature sag测试微孔氨基甲酸乙酯高温垂弛度的标准试验方法9.Test method for isocyanate groups in urethane materials or prepolymers氨基甲酸乙酯材料或预聚物中异氰酸酯基团的试验方法10.Poly - urethane foam agent多聚氨酯泡沫&&更多例句：&&1&&&&&&&&
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淘豆网网友近日为您收集整理了关于有关智能小车的外文文献翻译(原文+中文)-英文文献翻译的文档，希望对您的工作和学习有所帮助。以下是文档介绍：有关智能小车的外文文献翻译(原文+中文)-英文文献翻译 Intelligent VehicleOur society is awash in “machine intelligence” of various kinds.Over the lastcentury, we have witnessed more and more of the “drudgery” of daily living beingreplaced by devices such as washing machines.One remaining area of both drudgery and danger, however, is the daily actofdriving automobiles. 1.2million people were killed in traffic crashes in 2002,which was 2.1% of all globaldeaths and the 11th ranked cause of death . If this trendcontinues, an estimated 8.5 million people will be dying every year in road crashes by2020. in fact, the U.S. Department of Transportation has estimated the overall societalcost of road crashes annually in the United States at greater than $230 billion .when hundreds or thousands of vehicles are sharing the same roads at the sametime, leading to the all too familiar experience of congested traffic. Traffic congestionundermines our quality of life in the same way air pollution undermines publichealth.Around 1990, road transportation professionals began to apply them to trafficand road management. Thus was born the intelligent transportation system (ITS).Starting in the late 1990s, ITS systems were developed and deployed。In developedcountries, travelers today have access to signifi-cant amounts of information about travel conditions, whether they are driving theirown vehicle or riding on public transit systems.As the world energy crisis, and the war and the energy consumption of oil -- andare full of energy, in one day, someday it will disappear without a trace. Oil is not inresources. So in oil consumption must be clean before finding a replacement. With thedevelopment of science and technology the progress of the society, people inventedthe electric car. Electric cars will e the most ideal of transportation.In the development of world each aspect is fruitful, especially with the automobileelectronic technology puter and rapid development of the information age.The electronic control technology in the car on a wide range of applications, theapplication of the electronic device, cars, and electronic technology not only toimprove and enhance the quality and the traditional automobile electrical performance,but also improve the automobile fuel economy, performance, reliability and emissionspurification. Widely used in automobile electronic products not only reduces the costand reduce plexity of the maintenance. From the fuel injection engine ignitiondevices, air control and emission control and fault diagnosis to the body auxiliarydevices are generally used in electronic control technology, auto development mainlyelectromechanical integration. Widely used in automotive electronic control ignitionsystem mainly electronic control fuel injection system, electronic control ignitionsystem, electronic control automatic transmission, electronic control (ABS/ASR)control system, electronic control suspension system, electronic control powersteering system, vehicle dynamic control system, the airbag systems, active beltsystem, electronic control system and the automatic air-conditioning and GPSnavigation system etc. With the system response, the use function of quick car, highreliability, guarantees of engine power and reduce fuel consumption and emissionregulations meet standards.The car is essential to modern traffic tools. And electric cars bring us infinite joywill give us the physical and mental relaxation. Take for example, automatictransmission in road, can not on the clutch, can achieve automatic shift and engineflameout, not so effective improve the driving convenience lighten the fatiguestrength. Automatic transmission consists mainly of hydraulic torque converter, geartransmission, pump, hydraulic control system, electronic control system and oilcooling system, etc. The electronic control of suspension is mainly used to cushionthe impact of the body and the road to reduce vibration that car getting smooth-goingand stability. When the vehicle in the car when the road uneven road can according toautomatically adjust the height. When the car ratio of height, low set to gas or oilcylinder filling or oil. If is opposite, gas or diarrhea. To ensure and improve the levelof driving cars driving stability. Variable force power steering system cansignificantly change the driver for the work efficiency and the state, so widely used inelectric cars. VDC to vehicle performance has important function it can according tothe need of active braking to change the wheels of the car, car motions of state andoptimum control performance, and increased automobile adhesion, controlling andstability. Besides these, appear beyond 4WS 4WD electric cars can greatly improvethe performance of the value and ascending simultaneously. ABS braking distance isreduced and can keep turning skills effectively improve the stability of the directionssimultaneously reduce tyre wear. The airbag appear in large programs protected thedriver and passenger's safety, and greatly reduce automobile in collision of driversand passengers in the buffer, to protect the safety of life.Intelligent electronic technology in the bus to promote safe driving and that theother functions. The realization of automatic driving through various sensors. Exceptsome smart cars equipped with multiple outside sensors can fully perception ofinformation and traffic facilities and to judge whether the vehicles and drivers indanger, has the independent pathfinding, navigation, avoid bump, no parking fees etc.Function. Effectively improve the safe transport of manipulation, reduce the pilotfatigue, improve fort. Of course battery electric vehicle is the key, theelectric car battery mainly has: the use of lead-acid batteries, nickel cadmium battery,the battery, sodium sulfide sodium sulfide lithium battery, the battery, the battery, theflywheel zinc - air fuel cell and solar battery, the battery. In many kind of cells, thefuel cell is by far the most want to solve the problem of energy shortage car. Fuel cellshave high pollution characteristics, different from other battery, the battery, need notonly external constantly supply of fuel and electricity can continuously steadily. Fuelcell vehicles (FCEV) can be matched with the car engine performance and fueleconomy and emission in the aspects of superior bustion vehicles.ic car from ordinary consumers distance is still very far away, only a few pAlongwith puter and electronic product constantly upgrading electric car, open classin mature technology and perfected, that drive more safe, convenient and fortable. Now, the electreople in bandwagon. Electric cars with traditional pete in the market, the carWill was electric cars and intelligent car replaced. This is the question that day aftertiming e. ABS, GPS, and various new 4WD 4WS, electronic products andthe modern era, excellent performance auto tacit understanding is tie-in, bring usunparalleled precision fort and safety of driving.The hardware and software of the intelligent vehicle are designed based onAVR.This system could set the route in advance. The vehicle municatewith the PC vianRF401 and could run safely with the help of ultra sound detectionand infrared measuring circuit.work self- study is used to improve theintelligence of the vehicle.The performance of servo systems will determine the property of therobot. Based on AVRseries MCU,the velocity servo system for driving motor iscreated in this paper,including a discrete PIregulator which will work out a PWMcontrol signal with applying the skill of integral separation. The velocities of motorswill be controlled real - time with the speed sampling frequency set for 2KHz byusing the AVR - piler software development. Compared to the servosystem development based on the 51 Series MCU,the system here has theseadvantages of simpler peripheral circuit and faster data processing. The experimentsdemonstrate that,the mobile robot runs stably and smoothly by the control of AVRunits,and that the design proposal especially benefits the development of intelligentmobile robots,also can be widely used in the development of other smart devices andproduct lines.A new design of contest robot cont rol system based on AVR Atmega8 was putforward. According to the character of contest robot , the main cont rol unit , motordrive unit , sense detection unit and LCDdisplay unit wereintroduced. Furthermore theservo driver system based on MCBL3006S , the line t racker sensor system and theobstacle avoidance sensor system were presented in detail. Finally the performanceshowsthat the cont rol system is open , simple , easy programming , intelligent andefficiency.Avoidance rules of intelligent vehicle obstacle are introducted. Through thecollection of infrared sensor formation, the rules use diode D1 to launch and diodeD2 to receive infrared signals. Infrared transmitter signal without a dedicated es directly from the MCU clock frequency, which not only simplifie the circuitand debugging, but also make the circuit stability and anti- jamming capability greatlyenhanced. After the experimental verification, the system runs reliably meet thedesign requirements.A smart car control sys tem of the path informat ion identif ied based Dcamera was introduced. The hardware s truc ture and scheme were designed. Thecontro l strategy of s teering mechanismwas presented. T he smart car not only canidentify the road prec isely, but also have antinterference performance, and small steady state error.This article designed smartcar system,includes the aspects of the sensorinformation acquisition and processing, motor drive, control algorithm and controlstrategy etc.Using laser sensor to collect the road information which can feedback tothe microcontroller control system,then making analytical bined withthe software.With velocity feedback and PID control algorithms to control steeringengine and the speed of smartcar.Verified by actual operation, this method makessmartcar travel stably and reliably,and its average speed to reach 2.6m /s, and get asatisfied results.By the aid o f the pro fessio na l know ledge of contr ol, patter n recog nitio n,senso r t echnolog y, aut omotive elect ronics, elect ricit y, computer, machiner y andso on, an intelligent vehicle system is designed with PID control a lg Ddetection system and H C9SDG128 M CU. Codew arr ior IDE integr ated dev elopment pro gr amming env ir onment is taken as a basic softw are platform t hat canaut omatically deal w ith the traffic and image pro cessing, and then adjust the moving direction along the scheduled or bit by t he aid of D camera. The system hasmany advantages, such as hig h r eliability , high stability, good speedability andscalability.Based on the research background of the Free-Scale smart petition, asmart trackfollowing car is designed. In the car, the photo electricity sensor is used tocheck the path and obtain the information of racing road, andcalculate the errorbetween the car and the black line. The fuzzy control is used to control the velocity ofthe car. The experiments show that the smart car based on the fuzzy control has uracy on the judgment of the path, stability and velocity control.In the wake of puter and information revolutions, motor vehicles areundergoing the most dramatic changes in their capabilities and how they interact withdrivers since the early years of the century.In 1908, Henry Ford's Model T exemplified major breakthroughs in automotivedesign. Not only did its interchangeable parts inaugurate easy and economical massproduction, but its &user-friendly& operation allowed almost anyone to drive. Nearly90 years later, the motor vehicle is resembling less and less Ford's simple machineand quickly ing plex &puter&, capable of acting as a navigator,a safeguard, and even, a second driver. These new capabilities will not onl intelligent vehicles could also enhance transportation services, savelives, and bolster petitiveness of U.S. industries.However, intelligent vehicles aren't quite here. Instead, ponents that makevehicles smarter -- new information, safety, and automation technologies -- arearriving on the market as piecemeal accessories, offered either as optional equipmentby new vehicle manufacturers or as ponents by after-market suppliers.These technologies are being developed and marketed to increase driver safety,performance, and convenience. These individual technologies, however, have yet tobe integrated to create a fully intelligent vehicle that works cooperatively with thedriver.The automotive industry is already aware of and addressing potential problemsassociated with the uncoordinated influx of technology. But their progress ishampered by technical and economic obstacles, uncertain consumer interest, andinsufficient standards and guidelines. Also, neither original vehicle overnment regulators (unless safety problems are clearly proven) have control overafter-market products, especially their use in trucks and buses. However, without a&human-centered& design approach for the intelligent vehicle that attempts to integrateand coordinate various technologies, we may not only lose the opportunity to realizethe benefits offered by new in-vehicle technologies, but we could inadvertentlydegrade driving safety and performance.Recognizing the importance of smart vehicles and the potential for unintendedconsequences if human factors are not placed at the center of their design, DOTlaunched the Intelligent Vehicle Initiative (IVI) in 1997. This initiative aims elerate the development, availability, and use of integrated in-vehicle systems thathelp drivers of cars, trucks, and buses operate more safely and effectively.The 1980s television series &Knight Rider& featured an intelligent vehicle thatcould leap moderately tall buildings, drive itself at seemingly supersonic speeds, spyon bad guys, and had the diction and personality of an English butler. The car was notonly smart, but smart-alecky. Although intelligent vehicles in the real world will notbe able to fly over standing traffic, they will have formidable capabilities. Asenvisioned by IVI, smart vehicles will be able to give route directions, sense objects,warn drivers of impending collisions, automatically signal for help in emergencies,keep drivers alert, and may ultimately be able to take over driving.The use of information- puter-based technologies in motor vehicles,however, is not new. puterization of motor vehicles began in the 1980swith technologies designed to enhance vehicle operation and fort. Thesetechnologies included electronic fuel injection to control engine performance,particularly to reduce vehicular emissions and improve fuel economy, antilockbraking systems to help drivers retain control on slippery roads, and cruise control torelieve driver tedium during long stretches of driving. Whereas these technologieswere primarily aimed at enhancing the capabilities of the vehicle, the most recentwave of in-vehicle technology, which is of most interest to IVI, are the intelligenttransportation systems designed to enhance the capabilities of the driver. Thesesystems include warning and information, driver assistance, and automationtechnologies.Just as people possess different specialized abilities, in-vehicle ITS technologiesendow vehicles with different types and levels of &intelligence& plement thedriver. Driver information systems expand the driver's knowledge of routes andlocations. Warning systems, such as collision-avoidance technologies, enhance thedriver's ability to sense what's going on in the surrounding environment. And driverassistance and automation technologies simulate a driver's thinking and physicalactions to operate a vehicle temporarily during emergencies or for prolonged periods.But while a smart vehicle will extend the driver's capabilities, it will alsopotentially expand the driver's traditional role. In particular, in the midst of newin-vehicle technologies, the human role expands from that of sensory-motor skill,writes Thomas Sheridan, a professor who heads the Human-Machine SystemsLaboratory at the Massachusetts Institute of Technology (MIT), &to that of planner,programmer, monitor of the automation, diagnostician ..., learner and manager.&8Integration: The Key to Human-Centered DesignA key criteria of human-centered design is ensuring that a technology providesthe intended benefits without engendering unintended adverse consequences. Drivingis a potentially dangerous activity that requires attentive and alert drivers. Althoughtechnologies in the vehicle can enhance the driver's capabilities fort, they canalso create potential distractions that transform even the best driver into a road hazard.The National Public Services Research Institute, for example, found that individualswith cellular phones in their cars had a 34-percent higher chance of having a collisionITS research has already shown the benefits and feasibility of many of thetechnologies that will be contained within intelligent vehicles:Route guidance systems will help drivers better navigate unfamiliar streets orfind the quickest route to their destinations. In the TravTek field test in Orlando,sponsored by DOT in 1992 and 1993, tourists driving vehicles equipped with routeguidance systems made 30 percent fewer wrong turns and shortened their travel timesby 20 pared to drivers who used paper maps.Collision-avoidance systems will expand the paradigm of traffic safety fromprotecting the occupant of the vehicle to preventing accidents altogether. According toone study, 60 percent of crashes at intersections and about 30 percent of head-oncollisions could be avoided if drivers had an additional half-second to react. Nearly75 percent of vehicular crashes are caused by inattentive drivers. NHTSA estimatesthat three types of collision-avoidance systems could prevent 1.1 million accidents inthe United States each year -- 17 percent of all traffic accidents. These same systemswould save 17,500 lives (compared to the 10,500 lives saved by seatbelts and airbags)and $26 billion in accident-related costs. Other safety innovations that are now intesting include automatic collision notification systems, which will immediatelysignal for help if a vehicle's air bag deploys, and drowsy-driver warning systems thatwill keep drivers from falling asleep at the wheel.In-vehicle automation systems will temporarily take over driving duringemergencies or allow autopiloting for prolonged durations. In 1996, NHTSA beganfield testing intelligent cruise-control systems, which will automatically adjust avehicle's cruising speed to maintain a safe distance from vehicles ahead, to evaluatethe safety impact of this technology. In a more dramatic step towards &hands-off,feet-off& driving, the National Automated Highway Systems Consortium (NAHSC),which is a partnership of DOT and nine other public and anizations,demonstrated automated vehicle prototypes on a 12-kilometer test section of I-15 inSan Diego this past summer. In the future, automated highway systems will allowtraffic managers to double or even triple the effective capacity of highways byincreasing speeds and shortening distances between vehicles. Automated highwayscould also potentially improve highway safety by eliminating accidents caused byhuman error.Aside from delivering safety and efficiency benefits for the traveling public, thefederal government expects that indigenous development of intelligent vehicles couldpromote America's petitiveness.For intelligent vehicles to reach their maximum potential, they must be able municate with an intelligent transportation infrastructure and with otherintelligent vehicles. For example, communication with a smart infrastructure wouldallow an intelligent vehicle to learn of incidents and then proactively suggestalternative routes in real time. Smart vehicles could also act as probes that could sendinformation about travel conditions back to the infrastructure to create a richer base ofknowledge about travel conditions on roads and highways. In addition, fullyautomated vehicles will likely rely to some extent on the guidance provided by anintelligent infrastructure and munication with other smart vehicles. Forexample, in the recent AHS demonstration in San Diego, automated vehicles ic sensors under their bumpers were guided by s implanted at 1.2 meterintervals just below the road surface.Over the next five to 10 years, we should see the first generation with advances inthe capabilities of individual driver information and warning systems. These systemswill e increasingly integrated with information coordinated through displays.Drivers will still maintain full control over their vehicles although collision-warningsystems will provide limited automated assistance. In addition, vehicles would have agreater intelligence about road conditions in real time due to munications with an intelligent infrastructure.In about 10 to 15 years, the application of improvements in individual ITSsystems will bring on a second generation with more and better intelligence in thevehicle. Although drivers will still maintain full control over their vehicles,collision-avoidance systems could take control temporarily during emergencies. Inaddition, more sophisticated voice recognition systems will be incorporated within thedriver-vehicle interface. Vehicles will be able municate with each other toimprove collision-avoidance capabilities. munications with an intelligentinfrastructure will be more interactive.In about 20 years, in the third generation, we could see fully automated highwaysystems, cooperative systems of vehicles and infrastructure, and advances in thedriver-vehicle interface, such as use of vision enhancements and head-up displays.Looking back on a century inundated by technology, the motor vehicle stands outas a singularly dynamic invention. In the next century, this dynamism will be drivenby advances in information puter technology. Our challenge is to ensure thatnew information, safety, and automation technologies are integrated to createhuman-centered intelligent vehicles that can advance safety, surface transportationefficiency, and petitivenes播放器加载中，请稍候...
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有关智能小车的外文文献翻译(原文+中文)-英文文献翻译 Intelligent VehicleOur society is awash in “machine intelligence” of various kinds.Over the lastcentury, we have witnessed more and more of the “drudgery” of daily living beingreplaced by devices such as washing machines.One remaining area of bo...
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