sigma相关论文
1材料与方法; 1．1主要试剂; 鼠抗人Ⅰ、Ⅲ型胶原蛋白抗体，鼠抗人波形蛋白抗体，鼠抗人结蛋白抗体均购自北京中杉金桥生物技术有限公司；d......
随着能源问题的日渐严重，人们越来越注重节能减排。为了降低照明领域的能源损耗，LED固体光源得到快速发展。LED驱动电源中通常使用电......
随着集成电路规模越来越大，在超大规模集成电路中将传统模拟电路数字化的趋势越来越明显，模数转换器（ADC）在模拟和数字领域中扮演着一......
Entanglement in quantum theory is a concept that has confused many scientists. This concept implies that the cluster pro......
<正> Whether sleep is brought on by sleep-inducing substances accumulated naturally in the brain is a question that has ......
Effect of sigma phase precipitation on microstructure and properties of cast ZG0Cr26Ni5Mo3Cu3 duplex
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生物农药作为一种安全低毒、环境友好新型农药具有巨大的市场应用和研究价值。Sigma因子作为细菌基因转录起始的依赖因子,对生物农......
德国SIGMA SPORT公司为满足自行车极限运动的需求,对原先所开发的一款头戴式的自行车照明灯(戴在头部前额部位),作了一次全面的改......
Expression and Characterization of a Sigma-Class Glutathione S-transferase of the Oriental Migratory
A cDNA encoding a sigma-class glutathione S-transferase of the locust, Locusta migratoria manilensis (LmGSTs1), was clon......
Integration optimization of novel electric power steering system based on quality engineering theory
The dynamic model of a novel electric power steering (EPS) system integrated with active front steering function (the no......
Using experimental data to reduce the single-building sigma of fragility curves:case study of the BR
The lack of knowledge concerning modelling existing buildings leads to significant variability in fragility curves for s......
目的:研究sigma-1受体的激动剂fluvoxamine对危重症患者外周血单核细胞功能的影响。方法:收集健康体检者和危重症患者外周血,并采......
为探讨牛种布鲁氏菌sigma因子RpoE2的功能,采用酵母双杂交技术对RpoE2蛋白与anti-sigma因子之间的互作进行研究;通过环境应激试验......
岩心样品热蒸发烃的气相色谱测定是一种快速评价砂岩储油、泥岩生油特征的简便方法。 (一)实验装置 实验装置示意图略。(参见第五......
本工作利用管式炉裂解色谱法探索了聚醚酰亚胺的裂解产物苯酚、苯胺等特征峰与其组分配比的定量关系。 实验 (一)仪器 LJ—001型......
DEK公司宣布推出全新的高速、高性能印刷机,名为DEK Photon,其速度之快俨如有两台机器在工作。 Photon采用优化的印刷机机架,能提......
2006年1月23日,欧胜微电子宣布:安桥(Onkyo) 已经在其全新高端CD唱机和AV放大器系列中选择了欧胜 WM8740立体声数字模拟转换器(DAC......
提出了一种部分补偿SigmaDelta调制器整形噪声的新方案.通过在鉴频鉴相器中的延迟时段向无源滤波器中注入补偿电流,最大可实现16dB......
This paper investigates the design of digital Sigma-Delta Modulator (SDM) for fractional-N frequency synthesizer. Charac......
连续时间sigma-delta(CTSD)技术是一项较为复杂的技术,从上世纪90年代初开始研发至正式投入生产经历了超过15年的时间。这些
Cont......
In this paper,a new simplex unscented transform(UT)based Schmidt orthogonal algorithm and a new filter method based on t......
由欧洲12个国家共31个独立影像类媒体组成的 TIPA(Technical Imaqe PressAssociation)近期公布了素有“影像产业奥斯卡”美誉的 T......
SIGMA的中文音译是“适马”,各大色友及论坛上常谐称之为“死马”。 SIGMA主要产品是各类镜头, 其生产的镜头通常被冠以“副厂”镜......
A 1-V third order one-bit continuous-time (CT) Σ△ modulator is presented.Designed in the SMIC mixedsignal 0.13-μm CMO......
This work presents an oversampled high-order single-loop single-bit sigma–delta analog-to-digital converter followed by......
The conventional circuit model of a bit-stream adder based on sigma delta(∑Δ) modulation is improved with pipeline tec......
This paper presents a third-order single-loop delta-sigma modulator of a biomedical micro-system for portable electroenc......
The unscented Kalman filter is a developed well-known method for nonlinear motion estimation and tracking. However, the ......
This paper introduces a new method for SC sigma-delta modulator modeling.It studies the integrator’s different equivale......
This paper provides a mixed continuous-time/discrete-time,single-loop,4th-order,4-bit audio-band sigma delta ADC with ca......
Some research efforts to improve the efficiency and noise performance of buck DC-DC converters are explored.A carefully ......
This paper introduces a mixed continuous-time/discrete-time,single-loop,fourth-order,4-bit audio-band sigma delta ADC th......
A single loop fourth-order delta-sigma modulator is presented for audio applications.A reconfigurable mechanism is adopt......
提出了一款低功耗、大动态范围输入的sigma-delta(∑-Δ)调制器设计。调制器采用前馈结构与一比特量化器,前馈结构降低了系统对积......
This paper describes an analog front-end(AFE) intended for portable audio application, which operates at 1 V and consume......
A single die 1.2 V multi-stage noise shaping(Mash) 2-2 delta sigma analog to digital converter(ADC)for wide applications......
This paper presents a low power, high sensitivity Gaussian frequency shift keying(GFSK) demodulator with a flexible freq......
A 900 MHz fractional-N synthesizer is designed for the UHF transceiver. The VCO with a 4 bits capacitor bank covers 823......
基于6 Sigma设计方法,对双横臂悬架的K&C进行稳健优化设计.考虑到悬架硬点和衬套刚度对其K&C特性的影响存在明显差异,因此,采用分......
会议
Telomeresformtheendsofeukaryoticchromosomesconsistingoftandemarraysofhighlyconservedhexameric(TTAGGG)repeats.Telomeresha......
这款SPARC SIGMA MGS腕表采用了微型发电机系统(MGS)的钟表机构,通过佩戴者的运动所产生的能量来提供动力。对时间模块和微型发电......
无论是TPM、6SIGMA,还是精益生产,其精髓部分最终落实到两个字“改善”(或者“改进”),即要不断改善、追求更好。因此企业中构筑改......
