查询词典 vascular plants

Aim: To study the effects of angiotensin receptor antaganist-valsartan on vascular hypertrophy、vasomotion function and aorta vascular smooth muscle cell EGF precursor mRNA expression in spontaneously hypertensive rats.

目的：本文探讨血管紧张素受体拮抗剂-缬沙坦对自发性高血压大鼠血管结构、功能以及主动脉血管平滑肌表皮生长因子前体 mRNA表达的影响。

Paired t-test was used to compare the intensity value.Results:After having injected FX530,enhancement of liver on grey scale imaging was divided into four continuous phases-arterial,phase,portal veinous phase,capillary phase and delayed vascular phase,three phases in kidney—arterial,capillary and delayed vascular phases,but no parenchyma enhancement appeared in testis.Parenchyma enhancement in liver showed"detained enhancement",while in kidney it showed "wash-in and wash-out".

结果：造影后，肝脏二维灰阶增强分为四个连续的时相即动脉相、门静脉相、毛细血管相和延迟血管相，实质增强有&滞留增强&现象；肾脏二维灰阶增强分为动脉相、毛细血管相和延迟血管相，肾实质增强表现为一过性；睾丸仅表现为血管增强，睾丸实质无增强。

In this experimental conditions, the VEC had not damnified obviously by perfusion with IECS in 4 hours. The pulmonary vascular resistance could decreased by POE1 and so vascular endolhelial cells would be protected. Mannitol not only increase osmotic pressure but also cleanse OFR. The addition of mannitol, POE1, glucose and osmotic pressure to IEC solution contributes to reduce the quantities of OFR.

2在本实验条件下所采用的IECS进行犬肺灌洗、离体保存4h之内肺血管内皮细胞无明显损伤，PGE；具有保护肺血管内皮细胞的作用；甘露醇具有增加渗透压和清除自由基的作用；灌洗前肺动脉内注射PGE；及增加 ECS渗透压和代谢底物、提高PH值使之略微偏碱均有助于抑制供体肺离体、低温、冷缺血保存期间OFR的产生。

Vascular endothelial growth factoris a new kind of blood vessel active factors was finded in recent years. It not only plays a very important role in the process of micrangium proliferation but also contributs to the stabilizing, maturating and refraining from apoptosis of nascent micrangium, it participates the vascular endothelial cell through specific binding with corresponding receptor.

血管内皮生长因子(vascular endothelial growth factor， VEGF)是近年来新发现的血管活性因子，通过与相应受体结合特异性的作用于血管内皮细胞，不仅在毛细血管增生中起着十分重要的作用，而且对于稳定新生的毛细血管，使之成熟，避免凋亡具有重要意义。

To determine whether α1 and α2-adrenoceptors are located postsynaptically on renal vascular smooth muscle, a new method was developed as the following: the right renal vascular beds in the pithed rats were perfused with blood drawn from carotid artery at constant rate by a pump.

本实验用颈动脉血恒速满流毁脑脊髓大鼠单侧肾脏的方法，观察了高度选择性α_1受体阻断剂哌唑嗪和α_2受体阻断剂育亨宾与去甲肾上腺素、肾上腺素及电刺激肾交感神经对肾血管平滑肌的相互作用。哌唑嗪明显抑制电刺激引起肾灌流压升高，但尚存留一小部分既不能被增加哌唑嗪的剂量所阻断也不能被育亨宾所阻断。

Vascular endothelial growth factor can significantly improve restituting blood circulation of pearl fat transplantation, and angiogenin can synergism vascular endothelial growth factor.

VEGF能加快脂肪移植的血运重建，ANG能协同VEGF作用，从而显著提高自体脂肪移植成活率。

Result: The animal tests showed that the changes of the combs in morphology and histology was obvious, for example,the vascular is less than before and the vascular layer is shallowed.

对照射前后血管数的变化进行统计学检验，结果示在光学显微镜高倍镜下(×40)，照射后血管数有明显减少(P＜0.05)：临床病例观察显示，19例患者经2-4次照射，总有效率94.7％。

Vascular wilt caused by Fusarium oxysporum Schlecht has been a serious disease in South China, especially banana vascular wilt is fatal disease to banana industry.

华南地区因尖镰孢菌引起的枯萎病发生较为严重，特别是近年来发现的香蕉枯萎病，对香蕉产业来说更是毁灭性的病害。

Semi-thin sectioning and the method c.ommonly referred in histochemistry were used to study the development of vascular bundles in Aloe arborescens leaves with emphasis on the origins and tissue types of vascular bundle sheath cells and aloin-containing cells.

采用半薄切片和组织化学方法研究了木立芦荟叶内维管束的发育过程，并着重于维管束鞘细胞和芦荟素细胞的来源及组织类型。

Results For callus induction of leaf explants of C. orchioides, dark treatment gave better results compared to light treatment; among the media tested, the suitable phytohormone combinations were 2.0 mg/L 2, 4-D or 6-BA 1.5 mg/L 2, 4-D 2.5 mg/L, and 300 mg/L CH 0.2% AC was good for plantlet regeneration from leaf explants. The callus from leaf explants mainly originated from midrib. The parenchyma cells near epicuticle of midrib firstly were initiated to division. Then the parenchyma cells of vascular bundle sheath and mesophyll cells on each side of vascular bundle were also divided to form callus.

结果对仙茅叶片的愈伤诱导，黑暗的效果好于光照；在所试验的培养基成分中，适宜的激素配比是2.0mg/L2，4-D或6-BA1.5mg/L 2，4-D2.5mg/L，并且附加300mg/L水解酪蛋白和0.2%活性炭，对于仙茅叶片的离体成苗较好；培养后，愈伤组织主要由叶片的中脉产生，位于中脉上表皮内侧的薄壁细胞首先启动分裂，随后维管束鞘薄壁细胞及其外侧的叶肉细胞也启动分裂，参与愈伤组织的形成。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。