查询词典 2-butene

Geometries and energies of various low-energy conformers of the stereoisomers of 2,2,4, 4-tetrachloropentane and 2,2,4,4,6,6-hexachloroheptane were determined at the MP2 level with a 6-311++G** basis set.

在MP2/6-311++G**水平下，对2，2，4，4-四氯戊烷与2，2，4，4，6，6-六氯庚烷旋转异构体构象进行几何优化和能量计算。

The fluorescence spectra of Eu~(3+) may be used to study the structure ofcompounds.The band shift of Nd~(3+) in its absorption spectra,the red-to-orangeintensity ratio of the Eu~(3+) emission(~5D_0→~7F_2)/(~5D_0→~7F_1)and the yellow-to-blue intensity ratio of the Dy~(3+) emission~4F_(9/2→~6H_(13/2)/~4F(9/2→~6H(15/2)intheir fluorescence spectra may be used to study the degree of covalency of theLn-O bond and its relation with the electronegativity of M in Ln-O-M.

本文介绍了利用 Eu~(3+)的荧光光谱研究化合物的结构；利用 Nd~(3+)的吸收光谱的谱带位移和 Eu~(3+)的荧光光谱的红橙发射强度比(~5D_0→~7F_2)/(~5D_0→~7F_1)和 Dy~(3+)的黄兰比~4F_(9/2→~6H_(13/2)/~4F_(9/2→~6H_(15/2)，了解Ln—O—M中 Ln—O 化学键的共价程度以及 M 的电负性对共价程度的关系；利用吸收光谱、荧光光谱和磁化率研究稀土的价态以及利用磁化率研究化合物的组成。

The rats were killed by cutting theirnecks and physical blood was taken for preparing serum, interleukin 2 (IL-2) was detected by radioimmunoassay ; the spleen was taken for measuring ConA-induced reaction of lympho- cyte proliferation and induced production of IL-2; and the activity of induced production of spleen's IL-2 was determined by the means of cell proliferation of mouse thymus; the skin and trachea were taten for slice with paraffin wax, dyeing with methybenzoamine blue so as to survey mast cells .

将大鼠断头留取躯干血制备血清，用RIA法检测白细胞介素2（IL-2）；取脾脏行ConA诱导的淋巴细胞增殖反应测定和IL-2诱生；并用小鼠胸腺细胞增殖法检测脾IL-2诱生活性；取皮肤和气管做石蜡切片、甲苯胺兰染色检测肥大细胞，结果显示：应激组较对照组脾淋巴细胞增殖降低，cpm分别为9466±3.17和24019±3879（P.001）；MC明显减少，分别为8.6±3.0/HP和25.4±3.7/HP（P.001），前组形态异常较其甚（MC多较小，呈多角或不规则状），且组织中可见分散的崩解颗粒。

Results By incubating cardiomyocytes with bFGF, ERKs was activated and the cellular viability 〔(70.0±4.6)%in bFGF 10 ng group vs.(53.0±4.5)%in H/R group, P＜0.01） and the ATP content 〔(23.1±2.3) nmol/106 cells in bFGF 10 ng group vs.(12.3±2.1) nmol/106 cells in H/R group, P＜0.01〕 were increased, also the LDH leakage 〔(257.3±51.0) U/L in bFGF 10 ng group vs.(372.5±69.2) U/L in H/R group, P＜0.05〕, was decreased, then attenuation of H/R injury to cardiomyocytes was observed. PD098059, an inhibitor of upstream kinase of ERKs completely abolished the protective effects 〔viability (57.0±5.8)%,ATP content (15.1±2.6) nmol/106 cells,LDH activity in medium (325.5±59.0)U/L in PD098059 group vs. bFGF 10 ng group, P＜0.01, respectively〕.

结果 bFGF激活ERKs，并呈剂量依赖性减轻H/R所致心肌细胞损伤，表现为细胞存活率〔bFGF 10 ng组(70.0±4.6)%，H/R组(53.0±4.5)%，P＜0.01〕和细胞内ATP含量〔bFGF 10 ng组(23.1±2.3)nmol/106细胞，H/R组(12.3±2.1)nmol/106细胞，P＜0.01〕升高，细胞浆酶LDH漏出〔bFGF 10 ng组（257.3±51.0）U/L，H/R组（372.5±69.2）U/L，P＜0.05〕减少；ERKs上游激酶抑制剂PD098059完全消除上述保护作用〔PD098059组细胞存活率（57.0±5.8）%，ATP含量（15.1±2.6）nmol/106细胞，培养液中LDH活性（325.5±59.0）U/L，与bFGF 10 ng组比较均为P＜0.01〕。

By utilizing three benezenemulticarboxylate derivatives (H2chdc, H2aip, NaH2sip), we obtain 12 coordination polymers. Especially, compelexes 1 and 2 are based on one-dimensional ···OHInOHIn···chains as building units, while complex 3 is based on double four-ring [In8(μ2-O)4(μ2-H2O)8]16+, complex 4 is based on trinuclear In3(μ3-O)(CO2)6, complexes 11 and 12 are both based on nested bistranded helices.

选择了三类取代苯羧酸配体： 2，5-二羟基-1，4-对苯二甲酸(2，5-H2chdc)； 5-氨基间苯二甲酸(5-H2aip)； 5-磺酸基间苯二甲酸钠盐(5-NaH2sip)和InCl3反应合成了十二个配位化合物：其中1、2以···OHInOHIn···链为构筑单元， 3以双四元环[In8(μ2-O)4(μ2-H2O)8]16+为构筑单元，4以棱柱状三核铟In3(μ3-O)(CO2)6为构筑单元，而11、12以嵌套的双股螺旋链为构筑单元。

Research on Keeping Quality of Different Flesh Types of Prunus persica L.Niu Liang, Wang Zhiqiang, Liu Shu'e, Song YinhuaAbstract: Effects of post-harvest cold storage and Modified Atmosphere Package on fruit hardness, weight losing and soluble solid content of different peach or nectarine varieties were investigated. The results showed that:(1) There were obviously differences of fruit hardness among varieties of different flesh types. In room temperature, FH of '24-30' and 'Zhongtao No.2' went down slower than 'Zhongyoutao No.5' and 'Zhongyoutao No.10'. In cold storage, '24-30', FH of Zongyoutao No.5' and 'Zhongyoutao No.10' descent quickly after 2 weeks of storage while that of 'Shuguang' and 'Zhongtao No.2' quickly descent just after storage.(2) MA package could effectively slow down the decreasing of FH. There were obvious differences among different varieties while 'Zhongyoutao No.10' was less sensitive than others.(3) Soluble solid content went down after harvest and the procedure was slower in lower temperature. In room, MA package seems accelerate the descendent of SSC.

采用不同肉质类型的桃、油桃果实为材料，对采后低温和自发气调包装等对果实硬度、失重和SSC含量等的变化进行了研究，结果表明：(1)不同类型桃、油桃采后果实硬度变化差异较大，常温下24-30和中桃2号果实硬度下降较慢，而中油桃5号、10号较快，在冷库低温条件下，24-30、中油桃5号和中油桃10号两周后硬度出现迅速下降，而曙光和中桃2号在贮藏后即迅速下降，带皮硬度与去皮硬度之间有一定差异，但变化趋势基本一致；(2)MA包装能有效地延缓采后桃、油桃果实硬度的降低，在常温及低温条件下均是如此，不同肉质类型间差异明显，曙光和中桃2号非常敏感，而中油桃10号则不太敏感，即MA包装对其果实硬度降低的延缓没有其它品种明显；(3)采后桃、油桃果实的SSC含量均有一定的降低，低温下该过程较慢，MA包装在常温下有加剧SSC下降的趋势，低温下则不明显，这可能与常温下采后立即进行MA包装不利于&田间热&及呼吸热的及时散发而加剧呼吸有关。

Half-sib mating was used and one boar and five gilts were raised in a mating pen. Numbers of born alive per litter produced by G1 sows at 1.0, 1.5 and 2.0 years of age were 1.82+2.47 (N=36), 3.02+2.56 (N=30) and 5.02+2.26 (N=34) piglets, respectively.

再进行1公5母的半同胞并栏配种，第一代种母猪的分娩年龄为1.0、1.5和2.0岁时，其每胎活仔数分别为1.82±2.47(36胎)、3.02±2.56(30胎)和5.02±2.26头(34胎)。

These were the 5th, 6th and 8th Cavalry Brigades, which formed the Cavalry Corps that was subordinated to the 3rd Army during the 1941 campaign. A motorized brigade was made up from one motorized cavalry regiment, 2 cavalry regiments, one horse artillery regiment (2 battalions of 2 75 mm howitzer batteries each), one motorized 81.4 mm mortar squadron, one motorized AT and AA gun squadron, one motorized machine-gun squadron, one motorized pioneer squadron, one motorized communications squadron and one mechanized recon squadron (2 R-1 light tank platoons of 3 tanks each, one motorized cavalry platoon, one motorcycle platoon).

第5，6和8骑兵旅组成骑兵军在第3集团军的指挥下参与了1941年的战役。1个摩托化旅由1个摩托化骑兵团，2个骑兵团，1个马拉炮兵团（2营，每营包括2个75mm榴弹炮分队），1个摩托化81.4mm迫击炮连，1个摩托化反坦克和防空，1个摩托化机枪连，1个摩托化工兵连，1个摩托化通讯连和1个机械化侦察连（2个R-1坦克排，每排3辆坦克。1个摩托化骑兵排和1个摩托车排）。

Chemical and microbiological compositions of 12 samples of traditionally home-made koumiss in Xingjiang Uighur Autonomous Region were determined. The average contents of fat, protein, lactose, ash, calcium and phosphorus were 2.07g/100mL, 2.22g/100mL, 3.03g/100mL, 0.28g/100mL, 82.27mg/100mL and 58.20mg/100mL respectively. On average, pH was 3.90, titratableacidity was 134.25°T, lactic acid content was 10.99g/L, acetic acid content was 1.50g/L, citric acid content was 0.09g/L, ethanol content was 14.94g/L. The counts of lactic bacteria in 10 samples were 1.07～9.70×107cfu/mL, 1 sample was 1.38×108cfu/mL, another sample was 2.06×106cfu/mL; the counts of yeast in 1 samples was 3.20×104cfu/mL, 5 samples were 1.80～6.60×105cfu/mL, and 6 samples were 1.06～2.72×106cfu/mL. 33 strains isolated from 12 samples of traditionally home-made koumiss collected from Xingjiang Uighur Autonomous region belonged to Lactobacillus.

本项研究，对采集于新疆伊犁哈萨克族自治州、博尔塔拉蒙古族自治州和巴音郭愣蒙古族自治州 3 个地区的 12 份酸马奶样品，进行了化学和微生物组成分析，并对从中分离到的 33 株杆菌分离株，进行了属种鉴定，同时还对耐酸性菌株进行了初步筛选，结果表明： 12 份酸马奶样品的脂肪平均含量为 2.07g/100mL ，蛋白质平均含量为2.22g/100mL，乳糖平均含量为 3.03g/100mL，灰分平均含量为 0.28g/100mL，钙平均含量为 82.27mg/100mL，磷平均含量为 58.20mg/100mL；pH 值平均为 3.90，酸度平均为 134.25oT，乳酸平均含量为 10.99g/L，乙酸平均含量为 1.50g/L，4 份未检出，8 份柠檬酸平均含量为 0.09g/L，乙醇平均含量为 14.94g/l；1 份乳酸菌数为1.38×108cfu/mL，1 份为 2.06×106cfu/mL，其余 8 份在 1.07～9.70×107cfu/mL 间；1份酵母菌数为 3.20×104cfu/mL，5 份在 1.80～6.60×105cfu/mL 间，6 份在 1.06～2.72×106 cfu/mL 间。

The possibility of comfortable work with high resolution video willensure the processor intel core 2 Duo e6600 (2,4 GHz), 2 Gb DDR 2 memory PC 2-5300 and two massifs RAID-0, each of which includes two HDD with volume 250 Gb with interface serialATA (altogether - 1 Tb).

舒适工作的可能性将确保高分辨率视频英特尔处理器核心2铎e6600(2，4吉赫)22记忆复员绿化地块和两名警员搜查2-5300-0其中包括两个硬盘分别与250个绿化与接口数量serialata(共1结核病)。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐