中国科学院机构知识库网格系统: 检索

Aerogel doped by sulfur-functionalized graphene oxide with convenient separability for efficient patulin removal from apple juice 期刊论文 OAI收割
FOOD CHEMISTRY, 2021, 卷号: 338
作者: Liu, Manshun; Wang, Jing; Wang, Xin; Xu, Jingke; Xie, Linxuan

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Aerogel Mechanical strength Convenient separation Patulin removal Apple juice

金属催化的碳杂键对炔键的加成反应研究进展 期刊论文 OAI收割
有机化学, 2017, 卷号: 37, 期号: 2, 页码: 284
作者: 赵飞; 贾秀稳; 王东萍; 费朝丽; 吴成林

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收藏 | 浏览/下载：32/0 | 提交时间：2020/07/01

C-N BOND INTRAMOLECULAR TRANS-VINYLSILYLATION TERMINAL ALKYNES UNACTIVATED ALKYNES ACID-CHLORIDES REGIOSELECTIVE CYANOTHIOLATION 2,3-DISUBSTITUTED BENZOFURANS CYCLOISOMERIZATION REACTION STEREOSELECTIVE-SYNTHESIS CONVENIENT SYNTHESIS metal-catalyzed carbon-hetero bonds alkynes addition reactions

Trichloroisocyanuric Acid/Triphenylphosphine-Mediated Synthesis of Benzimidazoles, Benzoxazoles, and Benzothiazoles 期刊论文 OAI收割
AUSTRALIAN JOURNAL OF CHEMISTRY, 2015, 卷号: 68, 期号: 1, 页码: 145-155
Rezazadeh, Soodabeh; Akhlaghinia, Batool; Razavi, Nasrin

收藏 | 浏览/下载：28/0 | 提交时间：2016/05/12

ONE-POT SYNTHESIS SOLVENT-FREE CONDITIONS 2-SUBSTITUTED BENZIMIDAZOLES CARBOXYLIC-ACIDS MICROWAVE IRRADIATION CONVENIENT SYNTHESIS EFFICIENT SYNTHESIS TRANSFER CATALYSIS FACILE SYNTHESIS IN-VIVO

Fe powder catalyzed highly efficient synthesis of alkenyl halides via direct coupling of alcohols and alkynes with aqueous HX as exogenous halide sources 期刊论文 OAI收割
TETRAHEDRON, 2015, 卷号: 71, 期号: 25, 页码: 4304-4311
作者: Yang, Yong-Rong; Zhang, Qiang; Du, Feng-Tian; Ji, Jian-Xin

收藏 | 浏览/下载：22/0 | 提交时间：2016/12/22

3 GEOMETRICAL-ISOMERS CARBON BOND FORMATION MEDIATED SYNTHESIS CONJUGATED (E,Z)-ALKADIENES STEREOSELECTIVE-SYNTHESIS STEREOSPECIFIC SYNTHESES CONVENIENT SYNTHESIS PHEROMONE BOMBYKOL 1-ALKENYLBORANES DERIVATIVES

One-pot tandem synthesis of 2,3-unsubstituted indoles, an improved Leimgruber-Batchoindole synthesis 期刊论文 OAI收割
RSC ADVANCES, 2014, 卷号: 4, 期号: 9, 页码: 4672-4675
作者: Chen, Jinchun; Zhang, Zhikai; Liu, Sujing; Yang, Cuiyun; Xia, Chuanhai

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SUBSTITUTED INDOLES 2 CATALYZED ANNULATION CONVENIENT SYNTHESIS DERIVATIVES FUNCTIONALIZATION HETEROCYCLES ALKALOIDS ARYLATION CONCISE 3-DISUBSTITUTED INDOLES

Design of the real-time autofocusing system for collimator with long focus length and large aperture (EI CONFERENCE) 会议论文 OAI收割
2011 International Academic Conference on Numbers, Intelligence, Manufacturing Technology and Machinery Automation, MAMT 2011, December 24, 2011 - December 25, 2011, Wuhan, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：42/0 | 提交时间：2013/03/25

Large aperture collimator which has been widely used for calibrating and testing various optical devices plays an essential role in correlative laboratories. As being the basic testing and calibration equipment the large aperture collimator's accuracy should be much higher than the device under testing in order to ensure the accuracy of the measurement. However the process of adjusting the collimator is extremely complicated due to the collimator's large aperture and long focal length. So it is difficult to ensure the measurement's quality and easy to cause the system being vulnerable to the surrounding environment. One of the most common problems is defocus. In order to solve the problem above this issue presents a new type of autocollimator autofocusing system which uses pentaprism instead of using large-aperture plane mirror semiconductor lasers as light source and CCD sensor as receiver. The system is smaller lighter and more convenient when using. The computer simulation shows that the autofocusing system's resolution could reach the accuracy of 40m. If we use the relevant algorithms to execute the sub-pixel scanning the resolution could reach the accuracy of 10m. It shows that the system could satisfy the required testing precision of testing large aperture optical device.

Design of semi-physical simulation for small satellite by virtual display (EI CONFERENCE) 会议论文 OAI收割
2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China
Xu K.; Lv Y.; Jin G.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

Semi-physical simulation of attitude control system is the more synthetically test and verify for designing of small satellite control system. It is an important means of small satellite development. However the results of current semi-physical simulation system have a lot of non-intuitive. Compare with the actual environment the simulation environment still has striking disparity. So the shortcomings affect precision of simulation. Based on the virtual display technology the group semi-physical simulation system has been constructed for attitude control of small satellite due to the combination with xPC real-time environment the simulation computer high-precision single-axis air-bearing turntable reaction wheel air thrust device fiber gyroscopes sensors synchronizer power subsystem and wireless devices virtual display computer etc. Semi-physical simulation achieved the visual simulation in orbit and tracked new information of virtual environment of space into real-time simulation computer. Simulation results show that the simulation system for real-time attitude and orbit position of small satellite semi-physical simulation has an excellent display effect. At the same time Real-time transfuse of orbit information provides a more accurate space environment simulation. The simulation system of small satellite attitude control to design and evaluate the more direct and convenient. (2012) Trans Tech Publications Switzerland.

Study on sub-pixel techniques for accurate image measurement of displacement (EI CONFERENCE) 会议论文 OAI收割
2011 2nd International Conference on Advanced Measurement and Test, AMT 2011, June 24, 2011 - June 26, 2011, Nanchang, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：17/0 | 提交时间：2013/03/25

The high resolving power camera was often used to improve the precision of measuring system although its price is high because the accuracy of image measure was limited by the pixel resolving ability of camera. A method of one dimension gray level quadrature sub-pixel to detect edge was presented. This method was applied to measure the displacement of measuring head on 3-coordinate measuring machine. The data of test was shown that this system can distinguish displacement 0.001mm. it is higher accuracy than pixel level. So this method is convenient and fast fit to track and measure the moving object. It is obvious that this method can save the cost of hardware.

Research on moving target tracking scene simulation technology under battlefield complicated environment based on Vega (EI CONFERENCE) 会议论文 OAI收割
4th International Congress on Image and Signal Processing, CISP 2011, October 15, 2011 - October 17, 2011, Shanghai, China
Wang S.; Wei Y.-J.

收藏 | 浏览/下载：15/0 | 提交时间：2013/03/25

In order to better simulate the real environment of the battlefield which has moving-target and the complicated background and to simulate the tracking process of the target with 3d's simulation. This paper introduce a development platform of the Vega 3d simulation software and how to use the Vega to simulate the complex battlefield background which has the sky the explosion effects in the ground the fly parameters of fighter planes. It reappear a complete process which contains capturing target and tracking target. Experiment indicate that the Vega development platform is convenient and fast and can achieved the design parameters for the task's demands. It also has many advantages that contains repeating the performance of real experiment and reducing the expenses of the military experiment. 2011 IEEE.

Technology of USB HOST applying in traffic controller based on ISP1161A (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
Haibo L.; Song K.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

Control and management of the urban traffic signal is an problem that modern city has to face. The traffic signal controller makes a great contribution to the improvement of traffic status and the reduction of traffic jam. A traffic controller is designed using the technology of USB host based on ISP1161A. Universal serial bus is new interface bus architecture for PC which supports the PnP function Of PC peripheral equipments and has been widely used in computer and communicational devices. ISP1161A complies with the protocol of USB1.1 and is used as the core part of the system. As a new try the USB host technology is applied into the design of controller to implement the communication with PC. Configuration of scheme is carried out successfully. The USB host technology makes configuration of scheme and future update easier and more convenient. 2011 IEEE.