《上海机械学院学报》1979年第1期(创刊号)和1980年第1—4期总目录

(作者署名后括号内为年度、期数—页码)群策群力,办好学报·······..·...·····························……院党委书记王琦(1979 .1一1)气液和汽液双相流体流量测量的研究和发展···……陈之航、赵在三、王孟浩(1979 .1一3)旋转叶轮内含激波的跨声速三元流动的变分原理······...···········……刘高联(1979 .1一32)构成“双抛物线”插值函数的一种方法·································……张呐云(1979 .1一45)PW一30稀溶液的管内减阻研究·,…     

上海机械学院学报1984年第1—4期总目录

(作者署名后括号内为期数一页码)在冷冻过程中细胞膜内外的温度差及其对水分传递的影响华泽钊E.G.Cravalh。关于固体力学中的应力函数应变函数及其推广·····························……气液双相流体通过锐缘孔板的理论研究和流体可压缩性对试验结果的影响蒋鲁敏(1一1)刘高联(1一13)莫尔三维测量……一””’‘”””””””””.’‘螺杆压缩机任意共扼型线形成的数值计算赵在三常云发徐银龙陈之航(1一21)””’‘””‘’.“’‘’“”‘’‘”‘··……王因明(1一33) ..................……,.......…     

鸡胚对小鼠生长和免疫力的影响

实验以 3 0龄小白鼠为研究对象 ,分别采用鸡胚尿囊液和生理盐水 (对照 )灌胃 3 0d .结果证明 ,鸡胚尿囊液具有明显的促进生长作用 ( p <0 .0 1) ,促进生长效果达 12 .1% .鸡胚尿囊液和胚体混悬液对小鼠具有很好的提升作用 .试验证明 :鸡胚尿囊液和胚体混悬液不仅可以增加小鼠吞噬细胞数量 ,提高其吞噬能力 ( 0 .4mL/ (只·日 )灌胃时 ,p <0 .0 1) ,而且可以提高T淋巴细胞的数量 ( 0 .2mL/只 ,0 .4mL/ (只·日 )灌胃时 ,p <0 .0 1) .就提高小鼠免疫能力而言 ,以 10d龄的鸡胚尿囊液和胚体悬液 ,剂量为0 .4mL/ (只·日 )效果最好 .有关鸡胚尿囊液在功效学方面的作用 ,有待进一步研究 .     

水合氯化钆-冠醚-丙酮体系的相化学研究

用半微量相平衡方法研究了 Gd Cl3 · 3H2 O- 1 8C6- CH3 COCH3 三元体系 ( 2 5℃ )的溶解度 ,测定了各饱和溶液的折光率 .结果表明 :体系中形成两种化学计量的新配合物 :2 Gd Cl3 · 1 8C6·6H2 O·CH3 COCH3 ( )与 Gd Cl3 · 1 8C6· 6H2 O· 0 .5 CH3 COCH3 ( ) ,两者均为固液异成分溶解的配合物 .比较讨论了盐的阴离子、溶剂对形成配合物的影响 .考查了相平衡过程中水的行为 ,不论在液相中还是在固相中 ,n( H2 O) /n( Gd Cl3 )的物质的量比总是 3∶ 1 .依据相图数据 ,制备了固态配合物 ,用化学分析 ,IR,DTG,TG与 DSC研究了固态配合物的组成与性质 .     

文蛤抽提液对锯缘青蟹小触角弹动频率的影响

用行为学方法研究了不同浓度的文蛤抽提液对锯缘青蟹小触角弹动频率变化的影响.结果发现,小触角静息弹动频率为82～85次·min-1,而文蛤抽提液原液可使弹动频率提高到123次·min-1左右(应答性弹动频率).另外,文蛤抽提液的对数浓度变动(从原液稀释至10-10倍)与小触角应答性弹动增量之间存在线性关系,且小触角检测阈值低于10-10倍的稀释液.     

《广东科技》1997年总目录

.科技战线.No .1发挥技术优势促进科技成果向生产力转化 ...................一,:,……广东省化学纤维研究所《1〕No.5实旅科艘兴国故咯积极开展一科技进步活动月”活动·············································……本刊记者《1)No.6认清形势大力发展技术市场 ..……、..............·.....················……本刊记者(l)广东科技信息网络及其数拐库简介 ....................................·...·..·一本刊通讯员(3)如.10育盆推鹅一体化,握进科研成果转化为…     

辽宁工程技术大学学报 第24卷第2期(总第114期)2005年4月目次

45 49 53 57 61 65 69 72 75 78 81 84 87 9093%99:02:05:08:ll 1 .L几1 IJ卜几卜盖卜11‘..1 1 1.1 11，.1‘.1‘.12，‘2，一 .矿业口二租. 含有单向回路的风网平衡图绘制方法 ·······························································……刘剑， 石耳亦。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。.。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。 煤岩破坏电磁辐射记忆效应特性及产生机制… …     

甘肃蓼科(Polygonaceac)植物属、种检索表

一、分属检索表1。灌木。 2。叶退化为鳞片状,花被片果期不增大;雄蕊12~18;花柱4,坚果具翅或刺毛···…… .............................……,.…,...……,二,···············……1.沙拐枣属CalligonumL. 2。叶发育,内轮花被片果期增大;雄蕊6一8;花柱2一3;坚果无翅或刺毛···········,… ........................·.·...·.········································……2.木寥属AiraPhaxisL.1.草本,稀灌木。 3.花被片3;雄蕊3,柱头2,坚果双凸镜状····4···…     

《中州大学学报》2004年总目录

社会科学类 生命科学技术时代的伦理难题 何先美,王丰超 艳庆, 丰z娜 法律变革的起源—以中国史为中心的考查··········……二·········,···············……张 论我国水资源产权的界定········································,·····················,···……任 王 论听证笔录的作用 论合伙的主体地位 李建伟 第1期(1) 第1期(4) 第1期(8) 第1期(12) 第1期(15) 、,了、,口、、产‘、.声、.产 00 J.14一60了 11,一,一︹乙,一 了‘‘、…     

1992年渝州大学学报(自然科学版)总目录

(括号内数宇依次为期数,页码)中国代木包装的现状及发展研究····……””‘”””””‘”.‘”…‘·····……’···……戴宏民(l .1)交一直一交变频调速系统数字触发器·····……‘二‘·········,····················……郑有根(l .14)阿基米德蜗杆传动接触线分析·…’‘””’.”””””.””’·’·”’‘···················……陈延富(1 .21)clo12单轴自动车床进口系统凸轮设计的简易计算方法······················一陈有方(1 .27)甲醇、…     

Acting mechanism of F,K, and Na in the solid phase sintering reaction of the Baiyunebo iron ore

The effect of F, K, and Na on the solid phase reaction of the Baiyunebo iron ore was investigated by differential thermal analysis (DTA) and X-ray diffraction (XRD). It has been identified that alkaline elements K and Na in the Baiyunebo ore instigate the formation of low melting point compounds Na₂SiO₃ and Na₂O·Fe₂O₃ and the generation of molten state in the solid phase sintering. Element F in the Baiyunebo ore facilitates the formation of cuspidine compound 3CaO·2SiO₂·CaF₂ in the solid phase reaction. The cuspidine compound is kept in solid as one of the final products through the entire sintering process due to its high melting point. In the sintering process, CaF₂ and SiO₂ react with CaO first and form 3CaO·2SiO₂·CaF₂ and 3CaO·2SiO₂, so the formation of ferrites, Na₂O·Fe₂O₃, and 2CaO·Fe₂O₃ is inhibited.     

层状分子基磁体:{[ML][Fe~ⅡFe~Ⅲ(ox)_3·1.5H_2O]}_∞的合成和波谱表征(M=Co~(2+),Mn~(2+))

合成和表征了两种新的Schiff碱配合物[CoL(ClO4)·3H2O(1)和MnL(ClO4)·3H2O(2),其中L是由摩尔比为1∶1的水杨醛和二乙撑三胺缩合而成的Schiff碱。1(或2)、FeSO4·7H2O和K3[Fe(ox)3]·3H2O进一步反应,生成了层状分子基磁体{[ML][FeⅡFeⅢ(ox)3]·1.5H2O}∞,其中M=Co2+(3)orMn2+(4)。红外光谱和Mo¨ssbauer谱测定结果表明,3和4具有二维层状结构,其阴离子层由[FeⅡFeⅢ(ox)3]-单元构成。     

Diffusion behavior and distribution regulation of MgO in MgO-bearing pellets

In this paper, the diffusion behavior between MgO and Fe₂O₃ (the main iron oxide in pellets) is investigated using a diffusion couple method. In addition, the distribution regulation of MgO in MgO-bearing pellets is analyzed via pelletizing experiments. The results illustrate that MgO is prone to diffuse into Fe₂O₃ in the form of solid solution; the diffusion rate considered here is 13.64 μm·min-1. Most MgO content distributes in the iron phase instead of the slag phase. The MF phase {(Mg_1-x Fe_x)O·Fe₂O₃, x ≤ 1} is generated in the MgO-bearing pellets. However, the distribution of MgO in the radial direction of the pellets is inconsistent. The solid solution portion of MgO in the MF phase is larger in the outer layer of the pellets than in the inner layer. In this work, the approximate chemical composition of the MF phase in the outer layer of the pellets is {(Mg_0.35-0.77·Fe_0.65-0.23) O·Fe₂O₃} and in the inner layer is {(Mg_0.13-0.45·Fe_0.87-0.55) O·Fe₂O₃}.     

Pressure Dependence of Molar Volume near the Melting Point in Benzene

The pressure dependence of the molar volume was at constant temperatures close to the melting point in benzene. The molar volume of benzene was calculated using experimental data for the thermal expansivity for constant temperatures of 25℃, 28.5℃, 40℃, and 51℃ at various pressures for both the solid and liquid phases. The predictions are in good agreement with the observed volumes in both the solid and liquid phases of benzene. The predicted values of the molar volume for a constant temperature of 28.5℃ in the liquid phase of benzene agree well with experimental data in the literature.     

板栗苞制备活性炭及性能研究

以板栗苞为原料,用ZnC12为活化剂通过化学活化法制备活性炭.考察了活化时间、活化温度、液固比、活化剂质量分数等因素对活性炭吸附和脱色性能的影响.以扫描电子显微镜(SEM)、比表面积孔隙度分析仪(BET)测试活性炭结构和性能.实验结果表明所得活性炭具有多层结构且孔径分布广,活性炭碘吸附值为1 194.2 mg.g-1、亚甲基蓝脱色力为170 mL.g-1、比表面积为1 300.3 m2.g-1,总孔体积为0.8587 cm3.g-1.     

Ultrafast superheating and melting of bulk ice

The superheating of a solid to a temperature beyond its melting point, without the solid actually melting, is a well-known phenomenon. It occurs with many substances, particularly those that can readily be produced as high-quality crystals. In principle, ice should also be amenable to superheating. But the complex three-dimensional network of hydrogen bonds that holds water molecules together and gives rise to unusual solid and liquid properties strongly affects the melting behaviour of ice; in particular, ice usually contains many defects owing to the directionality of its hydrogen bonds. However, simulations are readily able to 'create' defect-free ice that can be superheated. Here we show that by exciting the OH stretching mode of water, it is possible to superheat ice. When using an ice sample at an initial temperature of 270 K, we observe an average temperature rise of 20 +/- 2 K that persists over the monitored time interval of 250 ps without melting.     

石墨相氮化碳表面包覆改善锂离子电池正极材料LiCoO2电化学性能的研究

通过简单的固相法和液相法,分别制备出石墨相氮化碳（g-C₃N₄）表面改性的商品化LiCoO₂复合材料,采用扫描电子显微镜观察改性后的材料,发现g-C₃N₄都均匀地包裹在LiCoO₂表面。两种g-C₃N₄-LiCoO₂复合材料被用作锂离子电池的正极材料,电化学测试结果显示,固相法制得的g-C₃N₄-LiCoO₂复合材料在0.2 C的倍率下充放电测试,首次比容量达167 mA·h·g^-1,循环80次后,比容量仍达132 mA·h·g^-1,高于未经g-C₃N₄包裹的纯LiCoO₂（98 mA·h·g^-1）;液相法制得的Y-C₃N₄-LiCoO₂复合材料循环稳定性明显优于同类材料,循环80次后容量保持率均在95%以上。试验证实,g-C₃N₄表面改性的策略具有一定的实用价值,改性后,材料优异的电化学性能归因于g-C₃N₄的包裹处理,这不仅增强了固体电解质界面（SEI）的稳定性,也抑制了锂离子嵌入/脱出电极材料时引起LiCoO₂体积的变化。     

Melting of the Earth's inner core

The Earth's magnetic field is generated by a dynamo in the liquid iron core, which convects in response to cooling of the overlying rocky mantle. The core freezes from the innermost surface outward, growing the solid inner core and releasing light elements that drive compositional convection. Mantle convection extracts heat from the core at a rate that has enormous lateral variations. Here we use geodynamo simulations to show that these variations are transferred to the inner-core boundary and can be large enough to cause heat to flow into the inner core. If this were to occur in the Earth, it would cause localized melting. Melting releases heavy liquid that could form the variable-composition layer suggested by an anomaly in seismic velocity in the 150 kilometres immediately above the inner-core boundary. This provides a very simple explanation of the existence of this layer, which otherwise requires additional assumptions such as locking of the inner core to the mantle, translation from its geopotential centre or convection with temperature equal to the solidus but with composition varying from the outer to the inner core. The predominantly narrow downwellings associated with freezing and broad upwellings associated with melting mean that the area of melting could be quite large despite the average dominance of freezing necessary to keep the dynamo going. Localized melting and freezing also provides a strong mechanism for creating seismic anomalies in the inner core itself, much stronger than the effects of variations in heat flow so far considered.     

2-甲基-1H-咪唑-4,5-二羧酸及其钴(Ⅱ)配合物的合成、结构和性能研究

以邻苯二胺和丙二酸为原料,通过缩合、氧化反应合成新型咪唑羧酸配体2-甲基-1H-咪唑-4,5-二羧酸(L).用NaOH调节体系的pH值为8.0左右,配体L和CoSO4.6H2O在水热条件下反应生成配合物[C(o L)(2 H2O)2](1).配合物1属于正交晶系Pbca空间群.在该化合物中,C(o Ⅱ)离子采取稍微扭曲的八面体配位构型,两个配体L以脱质子的羧基O原子和咪唑环上紧邻的N原子从赤道平面与Co(II)离子螯合配位,而两个水分子则占据轴向位置配位.有趣的是:合成的配合物1具有多重氢键连接点,是优异的氢键合成子,通过复杂的N—H···O和O—H...O氢键组装成三维的超分子化合物.进一步的热化学研究表明,该化合物相当稳定,在空气氛围下升温到200℃以上才开始分解.