class D fire

According to the different burning character of metal, the theory and method of three kinds of class D dry powder agents used to fight metal fires,including sodium chloride,sodium bicarbonate and graphite,were introduced in this paper.

介绍了金属不同的燃烧特性以及氯化钠、碳酸氢钠和石墨等三种D类干粉灭火剂在扑灭金属火时的灭火原理和灭火方法,并对干粉灭火剂在灭金属火时所适用的装置和探测系统等应用技术进行了分析。

Principle and application of MAX9708 high power class-D amplifiers;

大功率D类音频放大器MAX9708原理与应用

Integrated circuit of a class-D audio power amplifier with very high efficiency using CMOS technol- ogy is presented in this paper.

D类功率放大器适应便携设备高效节能的客观需求,从而在音频模拟集成领域具有优势,随着设计技术的不断进步,D类功率放大器的性能指标也逐渐接近AB类放大器。

2×80 Watts Class D AF Power Amplifier Design Based on Single Chip TDF8590;

基于单片TDF8590的2×80WD类音频功放设计

With the characteristics of high efficiency, energy conservation, digitization, small size and light weight, Class D audio power amplifier adapts to the objective needs of energy efficient portable devices and has great advantages in the field of audio analog integration.

D类音频功率放大器具有高效、节能、数字化、体积小、重量轻的特点,适应便携设备高效节能的客观需求,从而在音频模拟集成领域具有很大的优势。

The paper is based on the project“Theoretical Research on Key Techniques and Integrated Design of High Performance Class D Audio Power Amplifier”, after a detailed research on all kinds of common audio power amplifiers and their efficiency and distortion, an audio power amplifier XD2902 with high fidelity and high efficiency is designed.

论文基于西安电子科技大学的科研项目“高性能D类音频功率放大器关键技术的理论研究与集成设计”,在研究了各类音频功率放大器及其效率和失真机理的基础上,设计了一款基于∑-△调制技术的高效率、高保真的D类音频功率放大器XD2902。

Maximal Subsemigroups of D-classes of Finite Full Transformation Semigroup T_n;

有限全变换半群T_n的D-类的极大子半群

Simulative Analysis of the Amplifier of Class D Based on MATLAB;

基于MATLAB的D类功率放大器的仿真分析

Type D Power Amplifier with the Special Modulation IC SG3525;

用SG3525作调制器的D类音频功放

Research of High-Power Digital Class D Amplifier Based on DSP

基于DSP的大功率D类数字功放研究

Class D Audio Amplifier with High Efficiency and Low Harmonic Distortion

高效率、低失真的D类音频功率放大器

Design of A chopper OPAMP in CLASS-D Audio System

D类音频系统中斩波运放电路的设计

CLASS-D AMP Design and Development base on BiCMOS Process

基于BiCMOS工艺的D类功率放大器设计

The Analysis on the Influence of Patent Type by the Regional R&D Type;

我国地区R&D类型分布对专利类型的影响分析

Classification and Interpretation of "N_1+A+D+N_2" in Chinese

“N_1+A+D+N_2”的分类与解释

Synthesis and Properties of D-π-A-π-D and D-π-A-π-A Photoelectrical Materials Based on Stilbene Derivatives;

D-π-A-π-D和D-π-A-π-A均二苯乙烯类有机光电材料的合成及性能研究

D-Glucose is both a playschool and a baldheaded.

d一葡萄糖既是多醇类,又是醛类

D-glucoheptonic acid and its salts and esters

D-葡庚糖酸及其盐类和酯类

(d) such use shall be non-exclusive;

(d)这类使用应系非专有使用；

(d) where appropriate the time-frame for implementation of such commitments;

（d）在适当时，实施此类承诺的时限；

Research on the Quality Management of Basic Research Project;

基础研究类R&D项目质量管理研究

Isolation and Identification of Microbacterium Natoriense sp. nov., a Novel D-aminoacylase-producing Bacterium;

新型D-aminoacylase生产菌的分离及分类学鉴定

The Concept, Forming Paradigm and Sorting of R&D Project Portfolio;

R&D项目组合:概念、产生范式及分类

Operator D~α and some subclasses of meromorphic p-valet functions;

算子D~α及其刻划的∑_p函数类

Profit functions of a class of unilateral stochastic R&D model;

一类单边随机R&D模型的利润函数