定向

It is discovered that isomerization of 2,10-epoxypinane produce mainly perillyl alcohol in 353 ~ 363 K catalyzed by acid catalysts in strongly polar protonic solvent.

结果表明：在酸催化剂存在下，强极性非质子溶剂中，2，10-环氧蒎烷于353-363 K可定向重排生成紫苏醇。

Al /AlLi-Mg〓Si and α/TiAl〓-Mg〓Si pseudobinary directional eutectic composites with fine structural integrity were achieved by investigating the influence of various amounts of alloying Li and Ti on the eutectic line, the preferred eutectic reaction point and the range in which eutectic structure appears in Al-Mg-Si system, through which the modification on the matrix and strengthening phase in this system was realised.

通过考察不同含量Li和Ti合金化对Al-Mg-Si系中共晶线、最佳共晶成分点及产生共晶组织的范围的影响，制备了组织完整性良好的α/AlLi-Mg〓Si和α/TiAl〓-Mg〓Si伪二元定向共晶复合体，从而实现了对其基体和强化相的调整。

Signalling through CXCR4 mediates actin polymerization and pseudopodia formation in cells, and induces chemotactic and migration to target organs. In addition, CXCR4-SDF-1 axis can promote tumor angiogenesis and growth.

CXCR4在肿瘤组织中的表达明显高于正常组织，而肿瘤常见转移部位均为CXCR4的配体基质细胞衍生因子-1(stromal cell derived factor-1，SDF-1)表达丰富的器官，SDF-1与CXCR4结合后可使细胞肌动蛋白丝聚合，形成伪足，从而定向诱导肿瘤细胞迁移到特定的靶器官；此外，CXCR4与其配体SDF-1相互作用可以促进局部新生血管作用，利于肿瘤生长。

Objective: To obtain the anatomical data of three-dimensional morphology and localization of the dorsal thalamus and the pulvinar,which are necessary for the sterotactic operations of human brains.

目的：对丘脑与丘脑枕在脑内的空间形态和位置资料进行定位研究，为脑立体定向手术提供解剖学基础。

To obtain the anatomical data of three-dimensional morphology and localization of the dorsal thalamus and the pulvinar,which are necessary for the sterotactic operations of human brains.

柴东乔 ，楼佳庆，卢洪煊，田菊霞目的：对丘脑与丘脑枕在脑内的空间形态和位置资料进行定位研究，为脑立体定向手术提供解剖学基础。

As one kind of means for quantitive forecast and analysis, the numerical simulation technique can provide necessary theory basis and guidance scheme for the implement of this technology.

作为一种定量预测、分析手段，定向羽状水平井开采的数值模拟可为该技术提供必要的理论依据和指导方案。

METHOD:Experimental model of Alzheimer′s disease was made with rats induced by intracranial injection of quinolinic Acid.

采用脑立体定向颅内注射喹啉酸所致阿尔茨海默氏病(Alzheimer′s disease，AD)大鼠模型的方法。

Methods from Sept 2000 to March, 2002 516 patients with body tumor were therapied. The radiotherapeutic plan and set dosage distribution had been worked out on the basis of the carcinoma position, clinical target volume, patient health condition, and therapeutic aim. The isodosage curve was 50-90%. The fractional doses was 300-900cgy. The therapy had been repeated for 5-9 times for one patient, every two days one time. Results the patients were followed up 3 to 15 months after therapy.

采用OUR-QGD立体定向伽玛射线体部放射治疗系统治疗肿瘤患者516例，根据肿瘤的部位、临床靶体积大小、分类与治疗目的，如临床根治或姑息治疗，以及肿瘤周围的组织与器官、病人的身体状况、既往治疗情况、有无淋巴结转移等制定放射治疗计划及调整剂量分布， PTV覆盖95%以上CTV，等剂量曲线50~90%，中位值62.2%。

In the deep processing of agricultural and food products, there are some key technological problems of system design on the domestic traditional reelable vacuum aluminium coating system, including mass process parameters, bad process duplication, unstable production quality caused by complex operation, and high equipment failure rate. A newly developed reelable vacuum aluminium coating system with 1500 mm-wide thin plastic films was designed with high vacuum technology in order to satisfy the vacuum aluminum coating of more than 1500 mm-wide, such as polyethylene terephthalate, oriented polypropylene, polypropylene cast film, polyvinyl chloride.

为满足农产品及食品深加工中1500 mm幅宽以上的聚脂薄膜、定向聚丙烯薄膜、聚丙烯流涎薄膜、聚乙烯薄膜的真空镀铝，针对国内卷绕蒸发式真空镀膜机设备存在的工艺参数多、工艺重复性差、操作复杂、产品质量不稳定、设备故障率高等问题，采用高真空技术研制了宽幅卷绕蒸发式高真空镀膜机。

Simulation results show that the average dissipated energy decreases by 29% in RESEE compared with directed diffusion, and the lifetime grew by 125% at the network size of 400. Residual energy distribution maps also prove the energy equilibrium characteristic of RESEE.

仿真结果表明：当节点数为400时，RESEE较定向扩散路由协议的节点平均能耗降低29%，网络寿命上延长125%，节点剩余能量分布曲线证明RESEE能更均衡地利用有限的能量。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。