نتایج جستجو برای: dc electrophoresis
تعداد نتایج: 106129 فیلتر نتایج به سال:
Back ground: Candida albicans is a member of the normal human microflora. C. albicans cell wall is composed of several protein and carbohydrate components which have been shown to play a crucial role in C. albicans interaction with the host immune system. Major components of C. albican cell wall are carbohydrates such as mannans, β glucans and chitins, and proteins that partially modulate the h...
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back ground: candida albicans is a member of the normal human microflora. c. albicans cell wall is composed of several protein and carbohydrate components which have been shown to play a crucial role in c. albicans interaction with the host immune system. major components of c. albican cell wall are carbohydrates such as mannans, β glucans and chitins, and proteins that partially modulate the h...
For battery-powered electronic products, one way to extend battery life is to use a versatile step-up/step-down DC-DC converter. A new versatile step-up/step-down switched-capacitor-based converter structure is proposed, and its efficiency is analyzed. In the step-down case, the efficiency is the same as, or even better than the efficiency of linear regulators. key words: DC-DC converter, switc...
A three-phase isolated AC-DC-DC power supply is widely used in the industrial field due to its attractive features such as high-power density, modularity for easy expansion and electrical isolation. In application scenarios, it can be realized by multiple modules with Input-Parallel Output-Parallel (IPOP) mode. However, has problems of slow output voltage response large ripple some special appl...
Long-term electrokinetic processes affect the motion of different soil fractions mainly ionic-species in soil-type environments. Primarily, this governs direct (DC) and alternating (AC) electrical fields due to thermal, acid-base ion gradients generated close electrodes resulted electro-migration, electrophoresis, other electrolysis-related-processes. The migration metal ionic-species, includin...
Comparative proteomic analysis of spermatozoa isolated by swim-up or density gradient centrifugation
BACKGROUND Reports about the morphologic and functional characteristics of spermatozoa prepared by density gradient centrifugation (DC) or swim-up (SU) have produced discordant results. We have performed a proteomic comparison of cells prepared by DC and SU providing a molecular insight into the differences between these two methods of sperm cell isolation. METHODS Protein maps were obtained ...
MOSFET is the most commonly used devices in DC-DC power converters, and its performance is important to the prognosis and health management of power. The paper proposes a degradation analysis model for MOSFET in DC-DC power converters. A method for detecting the degradation of MOSFET is also introduced. Simulations have shown that the method can predict deterioration in the performance of MOSFE...
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