搜索结果: 1-15 共查到“工学 voltage”相关记录72条 . 查询时间(0.084 秒)
LONG CORRIDOR SURVEY FOR HIGH VOLTAGE POWER LINES DESIGN USING UAV
UAV flight DSM corridor survey mapping civil engineering power lines design low cost
2018/3/6
The term Unmanned Aerial Vehicle (UAV) is often directly associated with the armed forces due to their widely-criticized use of such vehicles on the modern battlefield. However, with the advancement o...
Artificial muscle for soft robotics:low voltage,high hopes
Artificial muscle for soft robotics low voltage high hopes
2016/8/1
Soft robots do a lot of things well but they’re not exactly known for their speed. The artificial muscles that move soft robots, called actuators, tend to rely on hydraulics or pneumatics, which are s...
Dynamical and Voltage Profile Stability of Inverter-Connected Distributed Power Generation
Inverter-Connected Distributed Power Voltage Profile Stability
2015/6/19
We present a systematic stability analysis of inverter-connected distributed generation. Our approach is to replace simulations with much faster and more informative analysis using transfer functions....
Detailed Balance Analysis and Enhancement of Open-Circuit Voltage in Single-Nanowire Solar Cells
Nanowire solar cell detailed balance open-circuit voltage effi ciency limit coherent eff ect resonance
2015/8/6
We present a detailed balance analysis of current density−voltage modeling of a single-nanowire solar cell. Our analysis takes into account intrinsic material nonidealities in order to determine...
Comparison of Electrical Accidents during the Process of Promotion of Low-voltage Power Distribution in Korea and in Japan
Electrical Accidents Process Promotion Low-voltage Power Distribution Korea Japan
2013/9/30
In Japan, the present low-voltage power distribution is mainly 100/200V. In the near future, 230/400V will be introduced to save energy and prevent any contribution to the greenhouse effect. However, ...
Measurement of Induced Voltage in Loop Antenna due to Electrostatic Discharge
Measurement Induced Voltage Loop Antenna Electrostatic Discharge
2013/9/30
Dust explosions caused by electrostatic discharge sometimes occur due to static electrification of powder during the pneumatic conveyance of powder and dust collection, and induce accidents to workers...
The capacitance voltage characteristics for the two-dimensional multi-conductor in liquid crystal displays (LCDs)! are numerically derived by the method of successive over relaxation (SOR)!. The nonli...
Low-voltage organic thin-film transistors with polymeric nanocomposite dielectrics
Organic Nanoparticle Dielectrics Thin-film transistors
2011/11/24
High performance organic thin-film transistors (OTFTs) incorporated with high dielectric nanoparticles in the dielectric layers have been demonstrated. The dielectric insulator consists of cross-linke...
Effects of filter bandwidth and driving voltage on optical duobinary transmission systems
2011/11/23
This work demonstrates how electrical driving voltage of a Mach–Zehnder modulator and the bandwidth of electrical low-pass filters (LPFs) affect optical duobinary signals. The fact that a 100% driving...
Ultra-low-voltage Micro-ring Modulator Integrated with a CMOS Feed-forward Equalization Driver
Waveguide modulators Photonic integrated circuits
2015/5/26
We present an all-CMOS micro-ring modulator packaged with a feed-forward equalization driver circuit, operating in charge-injection mode at 8 Gbps with a drive voltage of only 50 mVp-p and a power con...
Performance evaluation and improvement methods for low-driving voltage transmitters in long reach PONs
Fiber Optics Communications Networks network optimization
2015/5/26
The performance of two common low-driving voltage (low-ER) sources is experimentally evaluated for long reach PON applications, considering also partial optical dispersion compensation and electronic ...
WSN土壤湿度采集节点电压补偿方法研究（Voltage Compensation Method of WSN Soil Moisture Acquisition Nodes）
无线传感器网络 土壤湿度 神经网络 补偿
2010/12/29
针对适用于WSN土壤湿度采集节点的EC-5传感器对电源电压敏感的问题，从传感器工作原理入手分析电源电压引起检测误差的来源，且发现当传感器各项参数确定后，这种误差随着被测土壤湿度增大而增大。采用CC2430芯片作为WSN信息传输节点，建立具有多节点的上下位机WSN土壤湿度采集系统，以节点电压u和被测土壤实际湿度θ为对象，运用神经网络对采集节点中非线性土壤湿度传感器系统进行逆向建模，在上位机上...
两种高压电场处理形式对绿熟番茄贮藏品质的影响（Effect of Two Types of High Voltage Electric Field Treatments on the Storage Quality of Mature Green Tomato Fruit）
番茄 贮藏品质 静电场 交变电场
2010/12/28
以“朝研219”番茄为试材，研究了200kV/m、2h/d的负高压间歇静电场（简称稳恒电场）和波动场强-200～200kV/m、频率40kHz的交变电场预处理2h（简称交变电场）两种不同处理对绿熟番茄果实适温（13℃）贮藏品质的影响。结果表明：两种高压电场处理均能够显著减轻番茄果实的腐烂指数（P<0.05），电场处理延缓了果实硬度和可溶性糖、果皮叶绿素含量的下降，以及可滴定酸、番茄红素含...
Fault detection and identification for voltage sag state estimation in power systems
Fault location power system quality voltage sag (dip) estimation state estimation residual analysis
2010/10/12
This paper presents a novel approach for fault detection and identification in order to estimate voltage sag during a fault. One of the best approaches for voltage sag estimation is instantaneous volt...
Using a Microcontroller to Optimize the Bias Voltage of Balanced Photodiodes to Minimize Even-Order Distortion in Analog Fiber-Optic Links
Radio frequency photonics Photodiodes Fiber optic links subsystems
2015/6/4
Use of a microcontroller-based bias board for balanced photodiodes improves even-order distortion cancellation due to voltage dependent responsivity nonlinearities.The bias board improves the second o...