نتایج جستجو برای: dac

تعداد نتایج: 2037  

2012
Axel Dreher Andreas Fuchs Peter Nunnenkamp

Aid given by non-DAC donors (“new donors”) gains increasing attention. The recent literature moved beyond the presentation of qualitative evidence to more rigorous analyses based on improved data collection. In this paper we investigate the lessons of this emerging literature. We discuss whether the allocation of aid from non-DAC donors is different from that of DAC donors and how non-DAC donor...

2014
Kalmeshwar N. Hosur Girish V. Attimarad Harish M. Kittur

Abstract: This paper focuses on analysis and experimental results of 6-bit charge-redistribution DAC and 6-bit charge-redistribution DAC using split array configuration. These DAC configurations are designed and simulated using GPDK 180nm CMOS technology. DAC is an important component within the SAR ADC. The charge redistribution DAC in a Split capacitor configuration has a total capacitance wh...

Journal: :THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY 1998

2016
Erik Olieman Bram Nauta

.................................................................................................................... v Introduction ....................................................................................................... 1 1.1 STARS ............................................................................................................ 2 Analog and Digital Performance ..........

2015
MIKA HOSOKAWA MAI SAITO AIKO NAKANO SAKURA IWASHITA AYANO ISHIZAKA KUMIKO UEDA SEIGO IWAKAWA

The aim of the present study was to determine the effects of long-term exposure of decitabine (DAC) to HCT116 colorectal cancer (CRC) cells on the acquisition of resistance to DAC as well as cross-resistance to anticancer drugs used for CRC or other epigenetic modifiers. In the present study, DAC-resistant HCT116 CRC cells were established through long-term treatment with increasing concentrati...

2012
Howard Massey Frederick

Several nitrogen-containing dietary supplements were fed to chicks to study their effects on growth and tissue nitrogen products. An antibiotic mixture was added to the diet to determine its effect on the metabolism of nitrogenous compounds. In the first experiment, 2.0% protein equivalent was added as diammonium citrate (DAC) or isolated soy protein (ISP) to a balanced practical diet. DAC lowe...

2017
Yi-Dong Hong Jian Zhang Ming Zhuang Wei Li Puy-Uan Wu Ru-Tian Li Nan Hu Bao-Xiang Bian Zi-Yan Song Feng-Lei Wu

Hypermethylation of the transcription factor AP-2 epsilon (TFAP2E) gene affects 5-fluorouridine (5-FU) resistance in gastric cancer (GC) patients. The epigenetic inhibitor 5-Aza-2'-deoxycytidine (DAC), which reverses DNA methylation by targeting DNA methyltransferases (DNMTs), has potential to sensitize GC to 5-FU. Nevertheless, DNA demethylation only DAC transiently occurs since DAC is unstabl...

Journal: :THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY 1999

2008
Wei Jiang Vishwani D. Agrawal

This paper presents a BIST scheme to test and calibrate on-chip DAC and ADC and to improve both linearity and resolution of converters using a built-in sigma-delta modulator. We use a dithering dynamic element matching (DEM) techniques. A first-order sigma-delta modulator is used to sample DAC outputs because of high linearity of its outputs with high oversampling rate (OSR). The scheme is capa...

2005
Chien-Hung Kuo Jen-Chieh Tsai

A 10-bit 140MS/s digital-to-analog converter (DAC) with improved current mirror is presented. In order to improve the resolusion of a 10-bit DAC, a segmented decoding plus R-2R architecture will be introduced. DAC system modeling shows that the dynamic performance of the DAC is strongly dependent on the output impedance of DAC current source. The gain-boosting technique is applied to increase t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید