نتایج جستجو برای: dc local network

تعداد نتایج: 1203097  

Journal: :Journal of Marine Science and Engineering 2021

The subsea observation network has become an indispensable means of ocean exploration worldwide. However, the scale is limited by power supply voltage and level. Hence, to promote development a network, this paper investigates underwater high DC-DC converter (HVC), which greatly improves level network. traditional series-parallel based on multi-module faced with many technical problems, such as...

Journal: :CoRR 2014
Qi Guo Bo-Wei Chen Feng Jiang Xiangyang Ji Sun-Yuan Kung

This study presents a divide-and-conquer (DC) approach based on feature space decomposition for classification. When large-scale datasets are present, typical approaches usually employed truncated kernel methods on the feature space or DC approaches on the sample space. However, this did not guarantee separability between classes, owing to overfitting. To overcome such problems, this work propo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده فنی 1390

چکیده تاکنون توپولوژی های گوناگونی برای اتصال ماژول های فتوولتائیک به شبکه، ارائه شده است. در این پایان نامه انواع سیستم های متصل به شبکه خورشیدی مورد برررسی قرار گرفته است. طبق آخرین تحقیقات انجام شده اتصال سری ماژول های فتوولتائیک برای افزایش ولتاژ در کاربرد های خانگی مناسب نیست. از این رو در این پایان نامه یک مبدل dc/dc با افزایندگی بالا، برای افزایش ولتاژ پایین ماژول به سطح مورد نیاز اینور...

2011
Yu-Hsiung Lin Chun-Fei Hsu

The DC-DC power converters are widely used; however, the controller design for the DC-DC power converters cannot easily design if the load dynamics vary widely. This paper proposes an adaptive wavelet neural control (AWNC) system for a forward DC-DC power converter. The proposed AWNC system is composed of a neural controller and a robust controller. The neural controller uses a wavelet neural n...

Journal: :Journal of leukocyte biology 2006
Penelope A Bedford Vesna Todorovic Edward D A Westcott Alistair C J Windsor Nicholas R English Hafid Omar Al-Hassi Kankipati S Raju Sarah Mills Stella C Knight

Adipose tissue is reported to contain monocyte-like pre-adipocytes, which may mature into macrophages, contributing to local inflammation. Dendritic cells (DC) can be derived from monocytes and initiate and regulate primary immune responses. We hypothesized, therefore, that adipose tissue may provide DC involved in local immune activity. To test this, we studied cells from human omental adipose...

Journal: :The Journal of Experimental Medicine 2002
Evelyne Mougneau Stéphanie Hugues Nicolas Glaichenhaus

Dendritic cells (DC) are heterogenous, comprising several subpopulations of migratory and lymphoid-organ-resident types. Recent studies addressing the role of each subset in antigen presentation in vivo have revealed a complex division of labor within the DC network. In addition to CD8(+) DC, migratory lung or dermal DC can cross-present antigen in vivo. Migratory DC also transport to the lymph...

Journal: :Discovery medicine 2016
Brent A Hanks

Emerging data is suggesting that the process of dendritic cell (DC) tolerization is an important step in tumorigenesis. Our understanding of the networks within the tumor microenvironment that functionally tolerize DC function is evolving while methods for genetically manipulating DC populations in situ continue to develop. A more intimate understanding of the paracrine signaling pathways which...

2012
Shrinivas Reddy

In this paper a zero voltage switched active network (Fig. 1) which can be used in conjunction with single-phase or three-phase ac to dc diode rectifiers is presented. It is shown that application of the proposed switching network in threephase ac to dc boost converter yields zero switching losses while maintaining a unity input power factor. Active network capacitor, Cs, diodes D7, and D8, mai...

Kaveh, Mehrdad, Khosravi, Ali, Mesgari , Mohammad Saadi ,

Today, the global positioning systems (GPS) do not work well in buildings and in dense urban areas when there is no lines of sight between the user and their satellites. Hence, the local positioning system (LPS) has been considerably used in recent years. The main purpose of this research is to provide a four-layer artificial neural network based on nonlinear system solver (NLANN) for local pos...

2013
Neerparaj Rai Bijay Rai

This paper presents the design and implementation of Arduino Uno based DC motor speed control system using Multilayer Neural Network controller and PID controller. A model reference structure is developed using PID control to obtain the neural controller .The artificial neural network is trained by Levenberg-Marquardt back propagation algorithm. Feed forward neural network with two hidden neuro...

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