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systematically studied
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     The magnetic transition and conducting behaviors of LaMn_(1-x)Cu_xO_3(x=0.05, 0.1, 0.2, 0.3, 0.4) system have been systematically studied.
     系统研究了LaMn_(1-x)Cu_xO_3(x=0.05,0.10,0.20,0.30,0.40)体系的磁转变和导电行为.
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     In this paper, the structure and transport properties were systematically studied for La-{5/8}Ca-{3/8}Mn-{1- x }Co- x O-3 (0.0≤ x ≤0.3) system.
     系统研究了La5/8Ca3/8Mn1 -xCoxO3(0 .0≤x≤0 .3)体系的结构和输运特性.
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     For the purpose of nano semi-conducting crystals' controlling generation in the basic borosilicate glass which doped with Sm~(3+), the relations between SiO_2/B_2O_3ratio 、 BaO、 ZnO、 La_2O_3、 Y_2O_3、 Nb_2O_5 and glass stability were systematically studied.
     为了实现纳米半导体微晶在稀土Sm3+掺杂碱锌硼硅酸盐基础玻璃中的受控成核、生长,系统研究了基础玻璃的SiO2与B2O3摩尔比以及BaO、ZnO、La2O3、Y2O3、Nb2O5等不同的网络中间体对玻璃稳定性的影响。
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     The effect of the annealing parameters, alloy composition and cooling rate on soft magnetic properties were systematically studied for toroidal cores of Fe73.5Cu1Nb3Si13.5B9 and (FeCo)_73 5Cu_1Nb3(SiB)22 5 alloys with and without stress annealing.
     对Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9合金和(FeCo)_(73.5)Cu_1Nb_3(SiB)_(22.5)合金的环状铁芯在普通退火和应力退火下系统研究了退火制度、合金成分、冷却速度对合金软磁性能的影响。
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     The effects of the Ce content on the structure, thermodynamics, electrochemical properties and kinetic performance of the AB5-type hydrogen storage alloys La0.8(1-x)Ce0.8x(PrNd)0.2B5 have been systematically studied.
     系统研究了A侧稀土元素中Ce含量对AB5型贮氢合金La0.8(1-x)Ce0.8x(PrNd)0.2B5的结构、热力学性能、电化学性能和动力学性能的影响。
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     The influence of various foctors,including the gas flow ratio,R=C4F8/Ar+C4F8,source power,and self-bias,on etching of SiO2material by inductively coupled Ar+C4F8 plasma was systematically studied.
     使用感应耦合等离子体技术,通过改变源气体流量比R(R=[C4F8]/{[C4F8]+[Ar]})、射频源功率、自偏压等条件进行了SiO2介质刻蚀实验研究。
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     The effect of process variables such as activation temperature,activation time and flow rate of water vapor on yield and adsorption properties was systematically studied. The optimum regeneration parameters were obtained as follows: activation temperature 1 000 ℃,activation time 60 min and flow rate of water vapor 2.23 g/min.
     探讨了活化温度、活化时间、水蒸气流量对再生后活性炭吸附性能和得率的影响,得到了最佳工艺条件:活化温度1 000℃,活化时间60 min,水蒸气流量2.23 g/min。
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     The characterizations of ωT112 separation are systematically studied. Several equivalent conditions of ωT112 separation are given.
     系统地研究了ωT112分离性的特征,给出了ωT112分离性的若干等价条件.
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     We also systematically studied magnetic properties of Ge_nFe clusters and found that the total magnetic moment of cluster stabilizes at about 2μ_B (except for Ge_8Fe with total moment of 2.391μ_B), and the magnetic moment of Fe atom stabilizes around 2.5μ_B.
     对GenFe(n=1—8)团簇的磁性做了较系统的研究,发现团簇总磁矩随团簇尺寸增大基本稳定在2μB(只有Ge8Fe的总磁矩2.391μB较明显地偏离了2μB),另外团簇中Fe原子的磁矩在2.5μB左右振荡.
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     The effects of solution temperature on the microstructure and magnetic properties in solution state and final state of Sm0.76 Er0.14 Dy0.10 ( Co, Fe, Cu, Zr)7.22 sintered magnet prepared by the conventional powder metallurgy method were systematically studied using XRD, SEM and magnetic measurements.
     用粉末冶金方法制备了Sm0.76Er0.14Dy0.10(Co,Fe,Cu,Zr)7.22烧结磁体,研究了固溶温度对固溶态、终态磁体的微观结构以及终态磁体磁性的影响。
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     was studied.
     的化学成分和药理活性进行了研究,丰富石斛属植物的药用和开发研究。
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     NTCA are studied comprehensively and systematically.
     体外实验包括USPIO的制备、制剂学研究和NTCA的理化性质考察。
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     were studied.
     籽粒品质进行了研究分析。
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     The cluster method is systematically studied.
     本文系统、深入地研究了LSI/VLSI自动布图设计中的群法问题.
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     It was described systematically by H. C.
     它是由H.
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  systematically studied
The structure of the compressed layer and the aerodynamic characteristics are systematically studied for the Mach number 5 and various Knudsen numbers.
      
Ordered structures of macroparticles in a dc glow discharge in inert gases were systematically studied.
      
Catalysts based on uranium oxides were systematically studied for the first time.
      
The UL X-ray emission spectra of a wide range of uranium compounds were systematically studied.
      
The response of plasticized polyvinyl chloride membranes containing tetraphenylporphyrin on the pH of the aqueous solution was systematically studied.
      
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Over 200 Cr-Mn-C-N experimental steels have been systematically studied bya combination of microscopic examination,X-ray diffraction,electrolytic extraction,chemical analysis,hardness and magnetic measurements,density and dilatometricmethods,oxidation test,tensile tests at both room-and elevated-temperatures,creep-rupture test,etc.,and the main findings are presented as follow:(1)Stable austenitic region.(2)Solid state reactions:martensitic transformation,precipitation reactions,and formation of sigma...

Over 200 Cr-Mn-C-N experimental steels have been systematically studied bya combination of microscopic examination,X-ray diffraction,electrolytic extraction,chemical analysis,hardness and magnetic measurements,density and dilatometricmethods,oxidation test,tensile tests at both room-and elevated-temperatures,creep-rupture test,etc.,and the main findings are presented as follow:(1)Stable austenitic region.(2)Solid state reactions:martensitic transformation,precipitation reactions,and formation of sigma phase.(3)Room-and elevated-temperatures properties,and their relation to the che-mical composition of the steels.(4)Strengthening effect of interstitial solid solution.(5)Effect of precipitation reaction on elevated-temperature strength.(6)Effect of V,W,Mo,Nb,B and Si.(7)Tentative recommendation for indus rial applications.

本文综合报导了作者对二百余种Cr-Mn-C-N实验钢所进行的有系统研究的主要结果:(1)稳定奥氏体区域.(2)重要相变——马氏体转变、σ相形成及沉淀作用.(3)室温及高温性能及其与钢中化学成分的关系.(4)间隙固溶体强化原理.(5)沉淀作用与高温强度的关系.(6)加入V,W,Mo,Nb,Si及B诸元素的影响.(7)工业上可试用的领域.

This paper reports on the fossils of the Stromatolites and microflora from Sinian Suberathem near Kuancheng, Hebei and Lingyuan, Liaoning. The Stromatolites of these two districts have never been systematically studied. After primary outdoor and indoor research, we set up 18 groups and 24 forms (including 2 new groups, 7 new forms and 9 forms indet.) with the conical and columnar Stromatolites which we found. These fossils principally appear in the members which are thicker, limestones and dotomites. According...

This paper reports on the fossils of the Stromatolites and microflora from Sinian Suberathem near Kuancheng, Hebei and Lingyuan, Liaoning. The Stromatolites of these two districts have never been systematically studied. After primary outdoor and indoor research, we set up 18 groups and 24 forms (including 2 new groups, 7 new forms and 9 forms indet.) with the conical and columnar Stromatolites which we found. These fossils principally appear in the members which are thicker, limestones and dotomites. According to the feature and the perpendicular distribution of the stromatolites' complex, we consider the districts' strata to be bassically appropriate for the stratotype of Ji xiang, Hebei. They are correlated with each other, the Formation with the Formation, even the Member with the Member. Therefore, we uggest that the Stromatolites' complex is an efficient kind of fossils for dividing and Correlating the strata in our working districtsThe formation in which the stromatolites and microflora were found are as follows (from old to new):Tuanshanzi Formation: Gaoyuzhuangia gaoyuzhuangensis, G. crassibreuis, G. bulbosa, Tabuloconigera for.; Asperatopsophosphaera umishanensis.G aoyuzhuang Formation: Gaoyuzhuangia gaoyuzhuangensis, G. crassibrevis, G. bulbosa, G. for., Tabuloconigera for., T. kuanchengensis for. nov., Conophyton cyllndricum, C. garganicum, C. for., Kussiella cf. kussiensis, Svetliella polylada; Asperatopsophosphaera bavlensis.Yangzhuang Formation: Yangzhuangia columnaris, Y. weizhuangziensis for. nov., Tubaeforma regularis, Confusoconophyton for.。Umishan Formation: Clalloconophyton parvus gr.et for. nov., Pseudogymnosolen mopanyuensis, P. epiphyton, P. for., Cryptozon for., Scyphus inconspicus for. nov., Conophyton concellosum, C. litus, C. conicoforme, Microcolleniella, bellula gr.et for. nov., M. deformis gr.et for. nov., Colonnella cf discrela, C. cormosa, Paraconophyton paraconophytum for. nov., Chihsienella for.; Asperatopsophosphaera cf. umishanensis, Trachysphaeridium hyalum, T. cf. rude, Pseudozonosphaera verrucosa. Tieling Formation: Jurusania cf. alicia, J. for.; Asperatopsophosphaera partialis, A. bavlensis, Polyporata microporosa.Xiamaling Formation: Asperatopsophosphaera umishanensis, Paleamorpha punctulata, P.sp.The principal feature of the above Stromatolites' new group and new form has been indicated in our paper's table. There are 6 plates of the Stromatolites attached to the text.

本文记述了河北省宽城县、辽宁省凌源县一带地区震旦亚界的迭层石及部分微古植物化石。该区过去未曾系统开展过迭层石工作,此次经野外及室内的初步研究,将所发现的锥状、柱状等类型迭层石确定了18个群、24个型(其中有2个新群、7个新型和9个未定型)。这些迭层石主要产出于较厚层灰岩、云岩硅质含量多的组段,从上下分布的组合特征看,除团山子组的迭层石外,其余与河北蓟县震旦亚界层型剖面正的迭层石组合特征基本相同,可逐组甚至逐段对比,因此,迭层石组合在一定范转内是划分对比震旦亚界的有效手段之一。

The polycondensation of terephthaloyl chloride and p-phenylene diamine was systematically studied.High molecular weight PPTA with ηinh=5-7 were prepared and the main factors influencing the solution polycondensation of 1,4-pfoenylene diamine with terephthaloyl chloride were studied in detail. Experimental results showed that the moisture content of the reaction system, reactant concentration and volume ratio of mixed solvents have great influences on the inherent viscosity of poly-(1, 4-phenyleneterephthalamide)...

The polycondensation of terephthaloyl chloride and p-phenylene diamine was systematically studied.High molecular weight PPTA with ηinh=5-7 were prepared and the main factors influencing the solution polycondensation of 1,4-pfoenylene diamine with terephthaloyl chloride were studied in detail. Experimental results showed that the moisture content of the reaction system, reactant concentration and volume ratio of mixed solvents have great influences on the inherent viscosity of poly-(1, 4-phenyleneterephthalamide) obtained. Highest ηinh was obtained at a reactant concentration of 0.3m/1 in a mixed solvent HMPA/DMAC ratio of 4/1 (by volume); at a reactant concentration of 0.35m/1, in a mixed solvent (HMPA/NMP) of 7/3 and at a reactant concentration of 0.5m/l in a mixed solvent (HMPA/THF) of 9/1. The water content of the polymerization system must be strictly controlled to less than 100ppm.In the early stage of polycondensation process the ηinh of the polymer obtained increased rapidly with time. The system gelatinized within two or three minutes while the consumption of monomers reached 100%. The reaction of polycondensation continued after gelation and the ηinh of the obtained polymer increased appreciably.

详细地研究了对苯二甲酰-对苯二胺低温溶液缩聚时,各种反应条件对聚合体分子量的影响,获得了适合于液晶纺丝的高分子量聚合体,其η_(inh)可达5—7。结果表明,聚合体系的水份、单体克分子浓度、各种混合溶剂体系比对聚合体分子量有明显的影响。为获得高分子量聚合体,混合溶剂体系的最佳组成分别为:HMPA:DMAC=4:1(体积比)、HMPA:NMP=7:3 和 HMPA:THF=9:1。当水份含量大于100ppm时,将严重妨碍高分子量聚合体的得到。在缩聚反应初期,聚合体η_(inh)随时间迅速增长,两三分钟内出现凝聚现象,聚合转化率达100%。体系凝聚后缩聚反应仍然进行,聚合体仍有增长。

 
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