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.
The internal insulation defects of high voltage power equipment usually cause internal short circuit faults. The partial discharge (PD) test is one of the most effective technical methods to detect these defects. The electric charge of impulse current carefully measured in the PD test can be used to estimate whether there is a significant insulation defect in the power equipment. Moreover, because...
The space manipulator joint will work in the harsh space environment, which is enough small and light suitable for a space robotic arm to equip to the quick launch space service aircraft to reduce the cost and improve the flexibility. The thermal vacuum environment is a major environmental factor affecting the performance and reliability of the space manipulator joints, which will reduce the cooling...
Dynamic error coefficients of pneumatic servo system is analyzed theoretically. The response lag of the pneumatic closed loop system is caused by the speed item of the input signal and the dynamic error coefficient of speed changes with the changes of speed of the input signal. According to the characteristics of pneumatic servo system, the method of variable gain velocity feed forward is put forth...
In amine FGD process, great amount of SO42- rapidly cumulate in the amine desulfurization solution. This paper compares the three types of desalination method, respectively Chemical precipitation, ion exchange method and Cooling crystallization, the experiment results show that: Chemical precipitation method can remove 68.51% SO42-, while 97.46% SO32- is separated, Cooling crystallization method,...
The Songliao basin in northeast China is a Mesozoic rift basin characterized by Mesozoic and Cenozoic hydrocarbon systems. The Songliao basin was initiated by southeast-to-northwest lithospheric extension during the late Jurassic. The extensional phase was dominated by two fault sets, (1) shallow to moderately dipping normal faults, and (2) steeply dipping transfer faults. The extensional structures...
Male Dutch rabbits were weighed and randomly assigned within each weight group to five groups of six animals each (plus one more in the highest dose group). They received 0, 12.5, 25.0, 37.5, or 50.0 mg of ethylene glycol monomethyl ether (EGME) per kg of body weight in the drinking water 5 d/week for 12 weeks. Feed and water consumption were monitored daily and body weight weekly. All animals...
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.