中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共9条，第1-9条

帮助

条数/页：排序方式：
	Programming Enzyme-Initiated Autonomous DNAzyme Nanodevices in Living Cells 期刊论文 OAI收割 ACS NANO, 2017, 卷号: 11, 期号: 12, 页码: 11908-11914 作者: Chen, F; Bai, M; Cao, K; Zhao, Y; Cao, XW \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2019/12/17 QUADRATIC DNA MACHINE INTRACELLULAR TELOMERASE SIGNAL AMPLIFICATION 3-WAY JUNCTION ONE-STEP HYBRIDIZATION RNA MICRORNA NANOPARTICLE NANOSYSTEM
	Research for Diagnosing Electronic Control Fault of Astronomical Telescope’s Armature Winding by Step Signal 会议论文 OAI收割 SPIE Vol.9682, Suzhou, China, 2016-4-26 作者: Zhang Yulong; Yang Shihai; Gu Bozhong 收藏 \| 浏览/下载：18/0 \| 提交时间：2017/01/19 Astronomical telescope Armature winding Fault diagnosis Step signal MATLAB/Simulink
	Recent advances in graphene quantum dots for sensing 期刊论文 OAI收割 materials today, 2013, 卷号: 16, 期号: 11, 页码: 433-442 Sun HJ; Wu L; Wei WL; Qu XG 收藏 \| 浏览/下载：30/0 \| 提交时间：2014/04/15 PHOTOVOLTAIC DEVICES SIGNAL AMPLIFICATION CARBON NANOTUBES AQUEOUS-SOLUTION ONE-STEP OXIDE NITROGEN WATER SIZE FLUORESCENCE
	LED display panel grayscale modulation based on computer calculation (EI CONFERENCE) 会议论文 OAI收割 2012 International Applied Mechanics, Mechatronics Automation Symposium, IAMMAS 2012, September 7, 2012 - September 9, 2012, Shenyang, Liaoning, China Wang R.-g.; Chang F. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 In order to improve the method of the LED display panel grayscale modulation a method based on computer calculation is proposed. First the development history and trends of the LED display panel are introduced. Second present the structure of the LED display panel and the existed modulation method. Simultaneously point out the ground for shortcomings of the existed method. Third describe the principle modulation method based on computer calculation detail from two steps which are the data signal transformation and the grayscale modulation. Forth describe the realization steps of this method in accordance with the third step. Finally this method is supplied in a LED display panel whose resolution is 320240. Experimental results show that this method is able to increase the grayscale from 14-bit to 16-bit and can enhance the display result of the LED display panel significantly. (2012) Trans Tech Publications Switzerland.
	Design of thermostat system based on Proteus simulation software (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China Han Z.; Song K. 收藏 \| 浏览/下载：39/0 \| 提交时间：2013/03/25 In order to solve the problem of precise temperature control the thermoelectric cooler (TEC) principle widely used is analyzed for the design of the whole control process and selection of control parameters and then accurate simulation model of the TEC is established in Proteus simulation software. Moreover combined with the traditional circuit simulation model the temperature control loop is designed and the response characteristics of the system are tested using an input signal similar to the unit-step function to achieve the precise temperature control. Simulation results show that the proposed control circuits can precisely convert error signal to output voltage sent to TEC model and TEC model behaves approximately like a two-pole system. The first pole starts at 20mHz and a second pole at 1Hz. 2011 IEEE.
	Design and demonstration of micro multi-step mirrors and light source in micro FTIR (EI CONFERENCE) 会议论文 OAI收割 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011, February 20, 2011 - February 23, 2011, Kaohsiung, Taiwan Liang Z.; Fu J.; Feng C.; Liang J. 收藏 \| 浏览/下载：43/0 \| 提交时间：2013/03/25 To obtain high resolution high signal-to-noise ratio (SNR) high reliability and real time in wide spectral range we study the space modulation Micro Fourier Transform Spectrometer (FTS) based on multi-step mirrors covering the spectral range of 3-5m and 8-12 m in theory and experiment. The influences of spectrum reconstruction caused by the diffraction and extended light source in Fourier Transform Infrared Spectrometer (FTIR) are analyzed. A method to reduce the noises in spectrum reconstruction and the relationship between coherent intensity and solid angle of light source are discussed. An extended light source with suitable size is chosen considering the requirement of SNR and spectrum resolving power in the optical design. Furthermore the fabrication of micro multi-step mirrors which is the core part of FTS is investigated. Three methods for fabricating multi-step micro mirrors are demonstrated. 2011 IEEE.
	Space camera imaging gain in-orbit adjusting strategy (EI CONFERENCE) 会议论文 OAI收割 2009 2nd International Conference on Intelligent Computing Technology and Automation, ICICTA 2009, October 10, 2009 - October 11, 2009, Changsha, Hunan, China 作者: Wang J.; He X. 收藏 \| 浏览/下载：17/0 \| 提交时间：2013/03/25 A Multi-Step Gain Adjusting Strategy (MSGAS) of space camera was proposed which was used to get higher SNR (Signal-Noise Rate) image. When the space camera working in poor light condition the CCD signal was so weak that it's difficult to get a clear image to reduce the quantization noise and improve the SNR we must amplify the CCD signal first and then quantize. The MSGAS was achieved by adjusting the gain of the CCD (Charge Couple Device) signal processor step by step the upper limit and lower limit were set if the MDN (Mean Digital Number) of a fixed length image data was not between the lower and upper limit the gain was adjusted step by step. In the experiment the upper limit lower limit and the step were set and the result of the experiment showed that MSGAS was robust and SNR was improved from 28 to 39. 2009 IEEE.
	Implementation and stability analysis of the fuzzy controller based on electric-driven simulation turntable (EI CONFERENCE) 会议论文 OAI收割 ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China Xie M.-J.; Wang L.-M.; Wang Z.-Q. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 Fuzzy controller was used to resolve the problem of fast tracking and overshoot in electric-driven simulation turntable for its essence belongs to PD control In this system the control rules of fuzzy controller were established according to the step dynamic response process for the speed loop of this system was predigested to be second-orders system. The describing function method was adopted to analyze the stability of the fuzzy control system. It gave the information of stability of system intuitively. The fuzzy controller had been applied in this system successfully. The simulation turntable had no overshooting nearly when its step input signal was close to 90. Experimental results show the implementation method of fuzzy controller is not only simple but also effectual in engineering practice. It also provides an approach of design of fuzzy controller for motion control system. 2008 IEEE.