生理种

The city green turf grasses are under seriously stress for the shading of tall buildings, trees and shrubs, and lead to the recession of turf grass, so the author studied for this problem; Taking three cold-season sods as test material, including Festuca rubra Pernille、Poa pratensis Kentucky and Agrostis Regent. Effects of different concentrations of uniconazole (S3307) on shade-tolerance of three turf grasses under shading situation were studied by testing long-term growth and physiological characteristics of them.; After treated with S3307, the contents of chlorophyll and soluble sugar increased, plant height decreased, leaves width and thickness increased. All of these indicated that S3307 can evidently improve shade-tolerance of three turf grasses with different shade-tolerance, the optimal concentration of uniconazole is 100~200 mg/L; The results are very useful and meaningful for improving quality of turfgrasses under shading situation.

高大建筑物、乔木及灌木遮荫会使用于城市绿化的草坪草受到严重胁迫，造成草坪草衰退，针对这一难题进行了研究；以耐荫性不同的冷季型草坪草匍匐紫羊茅派尼、草地早熟禾肯塔基、匍匐翦股颖摄政王为试验材料，研究了不同浓度的外源激素稀效唑(Uniconazole， S3307)处理对3种遮荫草坪草生理及生长变化的长期调控作用；经稀效唑处理，3种草坪草叶片叶绿素含量和可溶性糖含量增高，植株株高变低，叶片变宽、变厚，不同耐荫性草坪草的耐荫能力均得到显著提高，最适的处理浓度范围100~200mg/L；这在生产实际中有重要应用价值，特别对提高受遮荫胁迫的草坪质量具有重要意义。

Fromylsalicylic, the derivative of salicylaldehyde, is an important organic ligand that can be used to synthesize centrosymmetric polynuclear complexes.

牛磺酸是一种含硫氨基酸，它作为一种非蛋白质类氨基酸，是人体必需的重要氨基酸之一，其独特的生理、药理功能，决定了它在医药、食品、化工等方面有着广泛的应用。

As an extension to the "973" Program of National Planning key basic research project -----the study of China lake nutrient over-enrichment process and the mechanism of blue alga outbreak, this paper introduces our experiments as below:(1) Experiment on heavy metal absorption and disorption abilities of Ceratophyllum demersum , Hydrilla verticillata and Myriophyllum triphyllum, in order to campare their absorption capability .

本文在前人的研究基础上，依托国家&973&国家重点基础研究规划项目&湖泊富营养化过程与蓝藻水华暴发机理&，开展了下列工作： 1、选取狐尾藻、金鱼藻、黑藻三种大型沉水植物作为研究对象，通过对重金属离子铜离子的吸附及解吸实验，比较其三种沉水植物之间吸附能力的大小； 2、选取狐尾藻、黑藻为研究对象，研究了重金属离子铜离子对沉水植物的胁迫作用及铜离子在植物体内的富集情况； 3、选取黑藻为研究对象，研究了沉水植物在富营养条件下不同浓度的氨态氮和硝态氮对沉水植物的生理生长的影响。

Biologist Dolph Schluter has recently discovered that all three traits--length, thickness, and mouth size--are linked together on the same genes.

生物学家Dolph Schluter最近发现这三种生理特性——身体长度、宽度以及嘴的尺寸——与同一种基因有管。

Ergothioneine is a kind of precious amino acid, and it is also a natural antioxidant. It plays an important role to prevent the oxidative damage in organism. Ergothioneine cannot be biosynthesized in humans, only can be absorbed from the diet. In recently the research discovered the high content of ergothioneine in the mushroom. Content of ergothioneine of Pleurotus eryngii is the highest from 28 kinds of mushrooms, therefore the research untilized P. eryngii to make the products of P. eryngii-fermented adlay and P. eryngii-fermented buckwheat which content high ergothioneine. Also, we analyzed their proximate composition, nutritional components, taste and physiologically active components, antioxidant properties and evaluation of anti-imflammatory effect.

中文摘要麦角硫因为一种稀有的胺基酸，也是天然的抗氧化剂，其在生物体内对氧化压力伤害之预防扮演著重要角色，麦角硫因不能在动物体内合成，仅能由食物中摄取，近年来发现在菇类中含有高含量的麦角硫因，从28种食药用菇类中筛选出麦角硫因含量较高的菌种，以杏鲍菇子实体最高(1521.6 mg/g dw)，因此本论文以杏鲍菇为媒介，利用固态发酵方式，制备出高麦角硫因之杏鲍菇薏仁和杏鲍菇荞麦，并针对薏仁、杏鲍菇薏仁、荞麦、杏鲍菇荞麦和杏鲍菇菌丝体，进行一般成分、营养、物性、呈味、生理活性物质、抗氧化性质之分析及抗发炎反应之评估。

The physiological strains of Erysiphe graminis were determined in 1999～2000 and the changes of strain groups were analyzed.

对1999～2000年小麦白粉病菌的生理小种进行了鉴定，并分析了小种种群的变化。

The birthplace of migrating birds had been a controversial problem for a long time. Based on comparision within winter habitat, reproduction habitat of Grus nigricollis, reproductive physiology and the upheaval of Qingzang Plateau in the Quaternary Period. We concluded that reproductive habitat was the birthplace of the bird species.

迁徙鸟类的种系发源地一直是个有争议的问题，本文依据黑颈鹤的越冬生境与繁殖生境的对比，以及青藏高原隆升与第四纪冰川的先后、动物繁殖生理等不同证据推断，繁殖地是鸟类迁徒的种系发源地。

Secondly, three types of radiotelemetry capsule antenna were proposed based on 3D digital body model and FDTD method. Finnally, radiation characters of the line gyral antenna at the four representative locations of the alimentary canal were studied.

基于人体的三维数字模型和FDTD算法，设计三种适用于生理参数遥测胶囊的天线：法向螺旋天线、长方体天线和回旋式线型天线，并给出了这三种天线的几何参数和基本性能参数。

NMDA(N-methyl-D-aspartate) receptors are a subtype of excitatory transmitters-glutamate receptor which belong to a heteromeric ligand-gated ionotropic receptors and play an important role in many complex physiological and pathological processes, such as nerve development, neuronal excitatory synaptic transmission, synaptic plasticity, central sensitization and neuronal death.

NMDA(N-methyl-D-aspartate)受体是兴奋性神经递质谷氨酸受体的一种亚型，是一种异聚体配体门控型离子通道，参与体内神经发育、神经元的兴奋性突触传递、突触可塑性、中枢敏化、神经元死亡等多种不同的生理和病理过程。

The results showed that there were differences between adaption and regulation of different wheat varieties by prophyl dihydro jasmonate, so as to show diversity of gas exchange parameters, such as photosynthesis, water usage, etc. There was no evident difference between the reaction of two spring wheats (Jinchun1 and 1608) and the winter wheat (Xiaoyan 22) to PDJ. Different parameters of different wheat varieties had inequable reaction to different concentration of PDJ. Photosynthesis rate, water use efficiency and stomatal limiting value were enhanced when PDJ concentration reached a high degree. At the same time, leaf transpiration rate and stomatal conductance decreased. Therefore, wheat could maintain normal physiological activities while environmental conditions were changed.

结果发现，面对类似激素双氢茉莉酸丙酯调控下的不同品种小麦适应与调节存在差异，从而导致光合和水分利用等气体交换参数的表现也存在差异；两种春小麦（金春1号、l608）和一种冬小麦（小偃22）之间对PDJ的反应没有明显的冬春性间的差别；对不同品种、不同参数，PDJ起到作用的浓度不同，但无论如何PDJ都有相同的作用，当这种激素达到一定的浓度后，就会增强小麦的光合速率和水分利用率，增加气孔限制值，降低叶片的蒸腾速率和气孔导度，从而在外界条件变化时保持体内水分、延缓气孔关闭，维持体内正常的生理活动。

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