The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this study, a simple, robust and effective electrochemical sensor was constructed for ultrasensitive and selective detection of organophosphorus (OPs). DCNP (diethylcyanophosphonate, a nerve agent mimic) was selected as a representative OP to investigate the analytical performance of the presented sensor. 3 dimession graphene-gold nanoparticles (3DGH-AuNPs) composites were simply synthesized via...
Through analyzing the value of the construction about service system of Fitness for all in new countryside, we established the evaluation index system for it by using document-research method, Delphi method etc. This system contains six first-level indices, fifteen second-level indices and forty seven third-indices. We hope to provide scientific theory for the evaluation on service system of fitness...
The estimate of the rotor position of inner permanent magnet synchronous motor (IPMSM) by using the method of high-frequency signal injection is discussed in this paper. The simulation of the model with MATLAB is carried out. The impact of the non-linear of the inverter, especially the dead zone time is analyzed. The some compensate measure is given. The result of the simulation shows the correctness...
Through the analysis of three-dimensional hub model by using finite element, detailed stress distribution is obtained. On this basis, the dangerous sections of structural discontinuity regions are made stress analysis and classification by using stress linearization method, the stress evaluation is carried out through using design by analysis theory. The results show the structure is safe and reliable.
In hydraulic servo system control, in order to ensure the high accuracy of the hydraulic servo system that is the system has strong anti-disturbance performance, infinite bandwidth, larger damping ratio and ideal static/dynamic stiffness are all required. As it is difficult to measure the load disturbance under normal circumstances, a state observer was adopted to evaluate the load disturbance. Then,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.