Polymer-supported chiral auxiliary has been widely applied in asymmetric aldol reaction, alkylation reaction, Mannich reaction, D-A reaction and obtained a good asymmetric induction and purification effect.

C60 is a good electron acceptor, can make D-A molecular which is applied to photovoltaic devices designing;

C（60）是一种良好的电子受体，能形成D-A型分子体系，从而用于光电器件设计；

A sectional design technique is described in the paper, which. combined with the conventional high-speed bipolar digital IC technology, can ensure the monotonicity of D-A converters by using diffused resistors, eliminating the need for laser trimming. By using this technique.

本文介绍的分段设计技术只需要采用常规的高速双极数字IC工艺，采用扩散电阻方法，不需要微调技术，就能保证其D/A的单调性。

It was found that these complexes can accelerate the rate of the D-A reactions, but almost had no effect on the ratio of endo to exo of the products by introduction of various substituents in comparison with the reaction in the absence of the catalyst.

实验结果表明：与没有催化剂的反应体系相比，这些稀土配合物能明显加快反应速度，但未能明显提高产物的内外型比例。

We studied the thermal stability, electrical and photophysical properties via Cyclic voltammetry, Absorption and Fluorescence spectra, thermogravimetric analysis. The relationship between the polarity of solvents and the conjugation length of the D-A structure with luminescent properties have also been studied.

利用循环伏安法，紫外吸收光谱，荧光发射光谱，热重分析等对其电化学性能，光学性能，以及热稳定性进行研究，同时考察了溶剂极性和D-A结构共轭长度对发光性能的影响。

NIR dyes can be divided into metal complexes, ionic dyes, large π-conjugated compounds and donor-acceptor ( D-A).

近红外染料大致可分以下三种类型：金属配合物型、离子型和电子受体-电子供体（D-A）型。

Linear Measurement of D-A Converter

数模转换器的线性测量

Because the structure is based on current replication while not on current division, it can overcome the defects of current-domain D-A converter.

电流舵型数模转换器只受到电流开关速度的影响，相对于电压型和电荷型结构具有高速的优势，并且这种结构是基于电流复制而非电流划分，可以很好地克服电流型结构的缺陷。

Study on Electronic Structure and d-d Excited Energies of Cr~ ( 3+) Complexes

Cr~（3+）离子配合物电子结构和d-d跃迁谱的研究

Objective: To measure the levels of VWF, D-D and Platelet parameter in type 2 Diabetic patients and to explore its clinical significance.

目的：探讨糖尿病患者D-二聚体（D-D）、血管性假性血友病因子（VWF）和血小板参数的变化，为临床治疗提供依据。

Simulation Design on Beam Shaping Assembly for Neutron Radiography Based d-D and d-T Neutron Source

d-D和d-T中子源中子照相慢化准直屏蔽系统模拟设计

A computational code for d-T and d-D neutron yield was developed. The asso-

开发了一种用于计算d-T和d-D中子产额的计算机程序，并对程序所涉及的相关物理问题以及可视化界面、程序流程和功能特点进行了介绍。

Research on Activation Experiment with D-D Neutron Tube

D&D管活化分析实验的研究

The neutron spectra from the gas discharge facility and D-D neutron source are compared.

并与加速器D&D中子源的中子能谱进行了比较。

Measurements of vwf, d-d and platelet parameter in type 2 diabetic patients

2型糖尿病患者血浆D-D、VWF和血小板状态的临床分析

On the 20th day, D-D and Fg levels showed no significant difference from those of the control group ( P> 0.05).

第20天血浆D-二聚体、Fg水平与正常对照组差异无统计学意义（P>0.05）。

Compared with asphyxiated term infants, D-D increased slightly in the group of asphyxiated premature infants.

窒息早产儿与窒息足月儿比较，D-二聚体无明显差异。

A study of D-D fusion in TiD target induced by ￣( 197) Au bombardment

~（197）Au束轰击TiD靶引起的D&D熔合研究

Low energy cross-sections measurement of D-D and D-T reactions

低能氘-氘、氘-氚反应截面测量

DETERMINATION OF D-D-SULFONATE BY BROMINATION Calculation on Hydrolysis of Salts

D－D混烯磺酸盐的含量测定关于盐类水解的计算

Singlet deuteron intermediate state in D-D four-body breakup reaction(ⅱ)

d-d四体破裂反应的单态氘中间过程（Ⅱ）