查询词典 spherical angle

Spherical geometry;; spherical triangle;; non-Euclidean geometry;; Euler formula;; cognition;; SOLO taxonomy theory

论文导师张红，论文学位硕士，论文专业学科教学论文单位四川师范大学，点击次数 8，论文页数 73页File Size3160K

This paper presents the yield conditions of the axis symmetric circular plate and shallow spherical shell of the reinforced concrete and determinates the limit load of the axis symmetric circular plate and shallow spherical shell of a simply supported using this yield conditions.

文摘：文章导出了基于双剪屈服准则下的钢筋混凝土圆板和球扁壳的屈服条件，并利用此屈服条件求解了极限荷载。

Whatever the case, the shape of the cross-section of the said sphenoid part is either of an isosceles spherical trapezium or of any spherical quadrilateral.

无论哪种情况，楔形体的横截面形状要么是有两条边相同的球形四边形，要么是任意球形四边形。

Results of research showed that it is easy to mix spherical powders with mercury by trituration and the amalgams of spherical powders are easier to fill, carve and polish than commercial amalgams made of cutting filing powders.

球粉汞齐的性能，诸如固化过程中的尺寸变化，压缩强度，流变及蠕变等均达到美国牙医协会技术指标。

When the pouring temperature is close to the liquidus temperature of AlSi7Mgalloy, the primary α-Alin the billets of AlSi7Mg alloy solidifies into spherical or nodular grainswhich are small and distributed homogeneously. In order to obtain non-dendritic semi-solidbillets,the appropriate pouring temperature is 615℃. The faster cooling rate,the melt flowing and largersolidification region induced by the near liquidus pouring temperature promotes theformation of spherical or nodular primary α-Al.

实验表明：当浇注温度接近液相线温度时，AlSi7Mg合金中的初生α-Al凝固成球状或粒状，晶粒细小，分布均匀；获得球状或粒状AlSi7Mg合金半固态坯料的最佳浇注温度为615℃；在接近液相线温度下浇注，较快的合金熔体冷却速度、浇注引起的合金熔体活动和大范围的同时凝固促使AlSi7Mg合金形成球状或粒状的初生α-Al组织。

The results showed that the semivariogram of S.granarium was described by a spherical model,and indicated an aggregated special pattern ranging from 21 to 61cm. The semivariogram of Aphidius sp.could be also well described by spherical model, and indicated an aggregated spatial pattern ranging from 36 to 55cm.The amount and spatial distribution of Aphidius sp. w...

结果表明，不同时期麦二叉蚜种群的半变异函数曲线皆为球型，其空间格局为聚集型，变程在 2 1～6 1cm之间；蚜茧蜂种群的拟合半变异函数曲线也表现为球型，呈聚集空间格局，空间变程在 36～ 5 5cm之间，并与麦二叉蚜种群在数量和空间上有较强的追随关系，说明蚜茧蜂种群是麦二叉蚜种群的优势种天敌。

Result indicates spherical catadioptric panorama imaging system can better realize panorama observation ,and comparing with other kinds of catadioptric facial ,spherical catadiop2tric panorama imaging system has advantages such as small scene distortion ,low2cost and simple design ,etc.

结果表明：基于球面的折反射全景成像系统可较好地实现全景观测，同其他几种折反射面相比，具有场景畸变小、造价低、设计制作简单等优点。

The results show that, by the way of optimizing preparation condition, the spherical zirconia powders with suitable particle size distribution are prepared using chemical precipitation method. Using heterogeneous chemical precipitation coating technique, the sph, erical nickel coated zirconia powders are prepared and the heterogeneous nucleation can be done on the surface of spherical zirconia powders. The thickness of coated layer, homogeneous degree and crack of surface can be controlled by the way of controlling powder concentration, adding rate of reactants feeding and adding surface active agent.

研究表明，采用化学沉淀法，通过优化制备工艺条件，可以制备粒径分布较均匀的球形氧化锆粉体；利用非均相化学沉淀包裹技术制备的金属镍包裹氧化锆微球粉体，球形氧化锆颗粒表面作为异相成核的场所，通过控制颗粒浓度、加料速度以及添加表面活性剂等工艺条件，可以调控包裹层厚度、表面均匀度以及表面裂纹等。

A gene sequence of the anthropogenic adiponectin spherical fragment obtained by the invention absolutely accords with a known gene sequence, and compared with the full-length adiponectin, the hydrolyzed anthropogenic adiponectin spherical fragment has stronger biological activity, fast reaction after dosage, good bioavailability and better clinic application prospect, especially when the diabetes patient receives a recanalization treatment after a myocardial infarction, the anemically myocardial damage of the diabetes patients can be eased by the exogenetic dosage.

本发明公开了一种人源性脂联素球状片段用于治疗糖尿病缺血性心脏病药物的应用，本发明所得到的脂联素球状片段的基因序列与已知的基因序列完全相符，与全长的脂联素相比，其水解以后的脂联素球状片段有着更强的生物学活性，而且给药后反应迅速，生物利用度好，有着更好的临床应用前景，特别是对糖尿病患者在发生心肌梗死后接受血管再通治疗时，通过外源性给药，以减轻糖尿病患者缺血心肌损伤。

In this paper, the research object is the XM18 spherical generator, in order to improve the dynamic behavior of the machine tool, the following aspects have been studied in this thesis: Firstly, based on the elasticity theory and finite element analysis theory, the finite element models of the lathe bed, dovetail, dovetail shelf, headstock, fanlike plank and millhead shelf, which were the main parts of the spherical generator, were built up using ANSYS9.0. And based on the modal analysis theory and FEM technology, the free modal and the constrained modal analysis of the main parts were studied. Accordance to the analytical results, put forword methods to optimize the key parts.

本课题以XM18球面铣磨机为研究对象，为了提高其动态特性，本文主要从以下几个方面进行研究：首先，根据弹性力学理论和有限元分析的基本理论，利用ANSYS9.0软件建立了铣磨机的主要零部件床身、燕尾、燕尾座、主轴箱、扇形板和磨头座的有限元模型，利用有限元法对主要零部件进行了自由模态和约束模态分析，并根据分析结果对关键部件提出了改进方案。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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