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recent advances
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  研究进展
     RECENT ADVANCES AND PROSPECTS IN STUDY OF HIGH CRITICAL TEMPERATURE SUPERCONDUCTORS
     高临界温度超导体的研究进展和前景
短句来源
     Recent Advances on DX Center Problem in Al_x Ga_(1-x)As
     Al_x Ga_(1-x)As中DX中心的研究进展
短句来源
     RECENT ADVANCES IN THE STUDY OF ~(153)Sm_EDTMP AS A THERAPEUTIC AGENT FOR BONE TUMOR
     骨肿瘤治疗剂~(153)Sm—EDTMP研究进展
短句来源
     RECENT ADVANCES IN THE STUDY OF THE CAMBRIAN IN HENAN PROVINCE
     河南省寒武系研究进展
短句来源
     C_(60) Superconductor and Recent Advances
     C_(60)超导体及其研究进展
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  进展
     “A Survey of Recent Advances in Magnetic Recording Materials,”
     磁记录材料的最近进展
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     RECENT ADVANCES IN THE THEORY OF CONDENSED PHASE DETONATION
     凝聚相爆轰理论的进展
短句来源
     Recent Advances on 190 Series Diesel Engines
     190系列柴油机的近期进展
短句来源
     Recent Advances in Piezoelectric Ceramic Materials
     压电陶瓷材料的近期进展
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     Recent Advances in Researches of Beijing Urban Ecosystems
     北京城市生态系统研究与进展
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  新进展
     Recent Advances in Asymmetric Catalysis Using 1,1′-Bi-2-naphthol
     1,1′-联-2-萘酚在不对称催化中的应用新进展
短句来源
     Recent advances in the research of mechanism of the Phenylalanine ammonia-lyase (PAL,EC 4.3.1.5) reaction
     苯丙氨酸解氨酶(PAL,EC4.3.1.5)反应机理研究新进展
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     Recent Advances in STN-LCD
     STN-LCD的新进展
短句来源
     Recent Advances in Apoptotic Modulating Gene BCL2 Family.
     凋亡调控基因BCL2家族研究的新进展
短句来源
     In present paper,the working principle,configuration and performance for various types of Na/S,Na/NiCl2 and Na/FeCl/2 cells were described and the recent advances in the research and development of these batteries for various applications were reviewed.
     本文概述了各类Na/S、Na/NiCl_2和Na/FeCl_2电池工作原理、性能以及各种应用研究开发的新进展
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  “recent advances”译为未确定词的双语例句
     A Review of the Recent Advances in the Pestroleum Geology of China
     A Review of the Recent Advances in the Pestroleum Geology of China
短句来源
     Recent Advances of the Cathode Material of LiMn_2O_4 for Lithium ion Battery
     锂离子电池正极材料LiMn_2O_4的研究动态
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     Recent Advances on Casting SiC_p/Al Composites
     铸造法制备SiC_p/Al复合材料的研究现状
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     RECENT ADVANCES ON THE SO 2- 4/M xO y TYPE OF SOLID SUPERACIDS AND THEIR CATALYSIS FOR ESTERIFICATION
     SO_4~(2-)/M_XO_Y型固体超强酸及其催化酯化
短句来源
     Recent advances in the microwave tube CAD technology,including numerical method and widely used electromagnetic softwares,as well as the modeling and simulation of microwave tubes are reviewed.
     综述微波管CAD技术 (包括微波管CAD中数值计算方法、广泛应用的大型电磁分析软件、微波管建模与模拟、微波管CAD集成环境等 )的国际国内研究情况。
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  recent advances
Recent advances on NLP research in Harbin Institute of Technology
      
Recent advances in the improvement of biological and physicochemical characteristics of lipids are reviewed, with emphasis on products of biochemical processing of natural (animal or plant) fats and oils.
      
Recent Advances in the Study of Mechanisms of Action of Phytohormones
      
This review highlights recent advances in studies of mechanisms underlying the effects of five phytohormone groups: auxin, cytokinin, gibberellin, abscisic acid, and ethylene.
      
Multinuclear magnetic resonance imaging in catalytic research: Recent advances and future prospects
      
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The recent advances of the "cut and try" method for solving the complicate non-linear network with constant flux are reviewed in the present paper.

本文将网络变换法推广于解任意复杂的具有恒定通量的非线性网络,在应用这种方法时,从网络几何的观点上研究了寻求最佳解案的问题,并获得了一些初步结果。 在附录1中将王显荣建议的解法——克希荷夫方程法和本文介绍的网络变换法作了一些比较。在附录2中,研究了其中包含有可分出来的线性网络部份的非线性网络,得到了当这种网络包含有任意多个非线性元件时的解案。

In this paper, recent advances in the research of coherence properties of electromagnetic radiation are discussed. Using the conception of photon degeneracy and degree of coherence the author is able to explain many problems such as light mixing, intensity fluctuations and the properties of coherent light source. Since the occurrence of radiation process is at random, the intensity of the signal generated by the mixing of different sources can be determined by the correlation of radiation processes as...

In this paper, recent advances in the research of coherence properties of electromagnetic radiation are discussed. Using the conception of photon degeneracy and degree of coherence the author is able to explain many problems such as light mixing, intensity fluctuations and the properties of coherent light source. Since the occurrence of radiation process is at random, the intensity of the signal generated by the mixing of different sources can be determined by the correlation of radiation processes as derived in the present paper. Regarding photons as bosons, the phenomena "intensity interferense" is explained as quantum fluctuations. The coherence properties of radiation may thus be interpreted well on the basic conception of quantum machanics.

本文的主要目的在综合评述近年来在光的相干性方面研究的成就。表明光子简并度和相干度等在有关问题中起重要作用,诸如干涉、拍频、强度起伏等。由于辐射过程的随机性质,拍频信号的强度由过程的相关度决定;由于光子是玻色子,这就决定了强度起伏中有相关项。从已有实验结果看来,光的相于性完全可从量子力学的基础概念得到解释。

Despite of quite a considerable amount of theoretical and experimental studies on the kinetics of ultrasonic degradation of macromolecules in solution, no convincing and decisive conclusions about the scheme of bond scission and degradation kinetics have been reached. In view of the recent advances in the determination of molecular weight distribution (MWD) by the method of sedimentation velocity in a θ-solvent, the present authors attempted to attack this problem by MWD studies during the course of degradation...

Despite of quite a considerable amount of theoretical and experimental studies on the kinetics of ultrasonic degradation of macromolecules in solution, no convincing and decisive conclusions about the scheme of bond scission and degradation kinetics have been reached. In view of the recent advances in the determination of molecular weight distribution (MWD) by the method of sedimentation velocity in a θ-solvent, the present authors attempted to attack this problem by MWD studies during the course of degradation process. A benzene solution of polymethylmethacrylate fraction of M_n=9.4×10~5 was used. Six samples were irradiated in ultrasound of 1 megacycles/sec for various durations. The MWD curves of these samples were determined in acetone-ethanol mixed solvent at θ-temperature. Number average molecular weights were calculated from the MWD data.

用超离心机沉降速度法,在θ-溶剂中测定经不同超声裂解时间的聚甲基丙烯酸甲酯裂解产物的分子量分布,从此计算出数均及重均分子量等数据,对裂解过程中分子量分布的改变与裂解动力学规律进行探讨。 1.考虑试样多分散性及裂解过程中的分子量分布对裂解速率权重因子的影响,并用数论方法逐阶段计算超声裂解产物的分子量分布曲线,与各种裂解机构的计算结果比较,以Ovenall的断键规律与实验有良好的符合。而Jellinek,Mostafa的断键规律以及Bueche的切断位置恰在高分子键中间的近似计算方法等均与实验数据偏差颇大。 2.Ovenall动力学方程在裂解后期,与实验结果偏差较大,需要修正。 3.高分子经超声裂解断鏈后的最小聚合度必须大于e,实验数据说明这e值不可能分布很宽。 4.计算一个单分散试样(聚合度为9×10~3)在裂解过程中的分子量分布的变化,其图形不同于Jellinek,Mostafa及Sata等推导的结果。

 
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