同型物

Fixed shell type vector hydrophone belong to mechanical type acoustic vector hydrophone, however moving shell type vector hydrophone belong to inertial type acoustic vector hydrophone.

本文研究的是三维同振球型矢量水听器，该水听器由球体外壳、压电加速度计、前置放大器、质量块、填充物、柔性悬置元件和框架组成。

Recombinant plasmid pSVH 7 DNA of avian influenza virus H7 subtype heamagglutinin gene was encapsulated with DC-chol/DOPE liposomes and PC/chol/SA liposomes separately. Two-week old SPF chickens were intramuscularly inoculated with 50 μ g/0.2ml of the liposome entrapped PSVH 7 DNA. Four-weeks later, each chicken was challenged with 0.1ml 〓 AIV . One week after the challenge, the secretion of the cloacas was collected and transfected to chicken embryos to isolate the virus. The virus was isolated from 6/6 of the control group, 1/6 of the naked DNA group, 1/6 of the PC/chol/SA entrapped DNA group and 0/6 of the DC-chol/DOPE liposome entrapped group. The HI antibody titers (log2) of the four groups were 6. 83±0.98, 7. 0±1. 26, 7. 83±1. 17 and 8. 00±0.89 respectively 1-week after challenge, and 8. 5±0.55, 8. 17±0.82, 8. 68±0.45 and 9. 33±0.54 respectively 2-week after challenge. The results showed that inoculation of liposome entrapped DNA significantly enhanced resistance to virosis in animals.

将含禽流感病毒H7亚型血凝素基因的重组质粒pSVH7用DC-chol阳离子脂质体和胆固醇／卵磷脂／十八胺脂质体包裹，免疫2周龄SPF鸡，4周后用同型禽流感病毒进行人工感染，1周后采集泄殖腔分泌物分离病毒，结果未免疫组6／6分离到病毒，裸质粒DNA免疫组1／6分离到病毒胆固醇／卵磷脂／十八胺脂质体包裹DNA免疫组1／6分离到病毒，DC-chol脂质体DNA免疫组没有分离到病毒（0／6）：人工感染后1周各组的HI抗体（Log2）分别为6.38±0.98，7.00±1.26，7.83±1.17，8.00±0.89，2周后为8.50±0.55，8.67±0.82，8.68±0.45，9.33±0.52，脂质体包裹组在同期均高于未免疫组和裸DNA免疫组，表明脂质体包裹质粒DNA免疫动物后，能增加动物对病毒感染的抵抗力和反应能力。

Primer 325 RAPD showed all COS-PA from SICU in 2003 were identical (SICU-A type), but the Burn-A type and SICU-A type were distinctly different. Most of the non-COS-PA from SICU also showed the trend of prevalence, which was defined as SICU-B type in RAPD typing, including the strain found in the bottom of the washstand.

SICU 2003年收集的COS-PA，经RAPD（引物325）分型为同一型别；在SICU收集的non-COS-PA也多数呈同一型别，自SICU水池下水口收集到的1株non-COS-PA也属于此型。

In our study, we also observed the different influence between TTB-USA and RFCA on blood coagulable states (by examining the change ofα-granule membrane protein、Tissue type plasminogen activatior、Plasmingen activator inhibitor-1)、 endothelium function (by examining the change of endothelin、nitric oxide) and myocardial injury (by examining the change of creatine kinase、MB isoenzy of creatine kinase and cardiac troponin T).

为观察超声消融与射频消融对血凝状态、内皮功能及心肌损伤的影响，进一步对超声消融的安全性进行评价，我们在插管前、插管后、消融后即刻、消融后30min及48小时5次抽静脉血，分别测定血小板α-颗粒糖蛋白(GMP-140)阳性表达活化血小板百分率、内皮素、一氧化氮、组织型纤溶酶原激活剂及纤溶酶原激活剂抑制物-1(PAI-1)的变化；于消融前、消融后即刻、2hr、8hr、24hr、48hr、72hr抽取静脉血，检测肌酸激酶、肌酸激酶MB同工酶及心肌肌钙蛋白T的变化。

Three isomorphic pendant derivatives based on monovacant Keggin heteropolytungstate [SiW11O39]8- as building block have been synthesized through the decoration of Co-Im complexes using bench method:5Na_4H_2[SiW_(11)O_(39)CoIm]_(0.63)[SiW_(11)O_(39)Co(H_2O)]_(0.37)·7H_2O (1)_6[SiW_(11)O_(39)NiIm]_(0.8)[SiW_(11)O_(39)Ni(H_2O)]_(0.2)·7H_2O (2)_4Na_6[SiW_(11)O_(39)MnIm]_(0.69)[SiW_(11)O_(39)Mn(H_2O)]_(0.31)·7.5H_2O (3) Complexes 1–3 are the first examples of crystallographically characterized 3d-transition metal mono-substituted POMs with an antenna organic ligand synthesized under normal bench conditions.

以单缺位Keggin型杂多钨硅酸盐[SiW11O39]8-为建筑单元，在水溶液中通过过渡金属-咪唑配合物的修饰，成功地获得了三个同构的悬臂式衍生物：5Na_4H_2[SiW_(11)O_(39)CoIm]_(0.63)[SiW_(11)O_(39)Co(H_2O)]_(0.37)·7H_2O (1)_6[SiW_(11)O_(39)NiIm]_(0.8)[SiW_(11)O_(39)Ni(H_2O)]_(0.2)·7H_2O (2)_4Na_6[SiW_(11)O_(39)MnIm]_(0.69)[SiW_(11)O_(39)Mn(H_2O)]_(0.31)·7.5H_2O (3)它们是第一例在常规水溶液条件下合成得到的X-射线表征的3d-过渡金属取代的悬臂式多酸衍生物。

Hydroxy and α-keto amino acid analogs of diet in

中的α-羟基和α-酮基氨基酸同型物。

Firstly, the piezoelectric properties of Na_(1-xK_xNbO_3 based ceramics around morphotropic phase boundary were studied.

首先，研究了Li_xNa__(0.52-xK_(0.48)NbO_3系列陶瓷样品在准同型相界附近的压电性能，Li离子的加入并不改变陶瓷的物相结构，体系陶瓷仍为纯的钙钛矿结构。

Cubic particles with average size of 5μm are found and the ratio of PbTiO3/PbZrO3 in PZT is about 53/47, which is around morphotropic phase boundary; Density is figured out through the datum measured in experiments.

发现PZT薄膜由平均尺寸约为5μm的PZT晶粒组成，其物相组成成分PbTiO3和PbZrO3的比值约为53/47，处在准同型相界附近。

Chiral SalanCrX complexesa saturated version of SalenCr(ⅢX are designed,and in conjunction with an ionic quaternary ammonium salt or organic strong base can efficiently catalyze the asymmetric,regio-and stereoselective alternating copolymerization of CO_2 with rac-PO at mild conditions to afford isotactic-enriched polycarbonates with～95%head-to-tail linkages and moderate enantioselectivity.

本论文在Salen构型配体的基础上，设计合成了一系列手性Salan型铬配合物，并将其与季铵盐/有机强碱组成亲电-亲核双组分催化体系，在室温下可以有效的催化CO_2和环氧丙烷的不对称交替共聚反应，实现了CO_2和环氧丙烷的不对称交替共聚反应的区域和立体化学控制，得到95%的头尾连接单元和中等光学纯度(对映体过量值ee%≈70%)的全同结构的聚碳酸酯。

Shape carabiners are stronger and lighter than ovals, given the same materials. The asymmetrical design ensures that loads are held off-center, toward the stronger, non-gated side.

型钩环的强度最强且比同材料的O形钩环轻，不对称的设计使负载物不会在中央，而移到开口的另一侧强度最强的地方。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。