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In chapter 4, by AREELS, the Generalized Oscillator Strength Density Spectra were measured in the energy region from 56 to 66eV, with the incident energy 2. 5 keV and energy resolution 80 meV, at scattering angles from 0°to 6°, corresponding to the momentum transfer K〓=0.03~2. 01 a. u. The Fano profile parameters f〓 and q for the optically allowed transition 〓(0, 1)〓P°and the optically forbidden transitions 〓(1, 0)〓S〓and 〓(1, 0)〓D〓 were obtained as a function of K〓. With the hyperspherical coordinate wavefunctions, the dynamical correlation are discussed qualitatively. So, a new experimental way to study dynamical electron correlation effect is opened.In chapter 5, the widely used R-matrix theory was introduced. Then, the GOSDS for the optically allowed excitation series (1s〓)〓S〓→〓(0, 1)〓P°(n=2-4) were calculated by this method, and the Fano profile parameters f〓 and q were obtained sequently. So the electron correlation effect can be described by these parameters quantitatively, and the theoretical results were compared with our AREELS experimental results.
在第四章中,实验上,同样使用角分辨的高能量分辨快电子能量损失谱仪,在2.5keV电子入射能量和80meV的能量分辨下,测量了0°到6°散射角下的He原子双电子激发态在56~66eV的广义振子强度密度谱,这种情况,0°~6°对应的动量转移范围K〓=0.03~2.01a.u。,得到了光学允许跃迁的双电子激发态〓(0,1)〓P〓和光学禁戒跃迁的双电子激发态〓(1,0)〓S〓、〓(1,0)〓D〓的Fano线形参数f〓,q等随动量转移变化的曲线;观测到了几个强度很弱、能级很窄的光学允许和禁戒跃迁双电子激发态,用前人准确的理论结果进行了标识;通过比较弱共振〓(1,0)〓S〓和〓(-1,0)〓S〓的强度随动量转移K〓的变化规律,结合超球坐标理论计算的波函数,定性地阐述了在电子碰撞散射过程中它们各自不同的动力学电子关联效应,发展了一套在实验上研究电子关联效应的新方法。
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For example, the depth of mountain tundra soil profile was 75 cm, and apparent 14C ages was 1315 a; the depth of brown coniferous forest soil profile was 40 cm, and apparent 14C ages was 870a; the depth of lessive black brown soil was 120 cm, and apparent 14C ages was 5145 a.
这不仅是由于它们的生化性质及其化学组成不同而造成的,而且还因为土壤有机质分解与累积相互影响制约的结果。
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The experimental results indicate that the maximum slope angle measured by LSCM reaches at least 50°, and the clear three dimensional profile is obtained in the profile analysis of cantilever. Meanwhile, the deformation accurately measured by two dimensional quantitative analysis is 3.145μm, and the field area is 384μm×288μm in mosaic function equipped with LSCM in 100×objective, which can solve the problem that the watched object's total shape in single frame micrographic image can not be obtained under high microscopic enlargement times.
实验结果表明:运用LSCM测量的斜面最大角度至少可以达到50°;在悬臂梁的形貌分析中,可获得清晰的三维形貌,同时通过二维定量分析精确测得其形变为3.145μm:在100×物镜下,运用拼接功能获得384μm×288μm的视场面积,解决了高放大倍数下,在单帧显微图像中无法获取所观测对象全貌的问题。
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The quality and micromeritics of the ZP pellets were evaluated. The release profile of the AP pellets and the effects of thermal treatment and artificial gastric juice on the release profile were tested. Results The surface of the coated pellets was smooth, glossy and round.
用乙基纤维素和羟丙甲基纤维素作为包衣材料,流化床进行包衣制备ZP缓释微丸,对缓释微丸体外释放进行评价并考察不同热处理时间以及人工胃液对缓释微丸药物释放的影响。
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Plastic and wood powder slight foamed profile line:With special designed screw,barrel,moule and producing process,equipped with YF series downstream equipment,this line can produce PE,PP,PVE and wood powder profile.
木塑共挤发泡生产线:采用特殊设计的螺杆、料筒、模具及加工生产工艺,并配备YF型材辅机,即可生产PE、PP或PVC木塑发泡异型材制品。
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In order to enhance the precision and universality of the software, the author provided some improved way of calculation accordingly. The description of arithmetic in the nonsymmetrical valve train cam profile and polynomial dynamic cam profile was stressed.
为使该软件具有更高的计算精度和更好的通用性,文章相应地提出了一些改进算法,重点对非对称式配气凸轮及多项动力凸轮的算法加以描述。
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Most of hob design for non-involute gears are nowadays taken by approximation method.For example,the normal sectional profile of hob worm therad is usually regarded approximately as its basic rack profile.Recently, some new methods have been developed in this respect but, perhaps, they appear overelaborate since the principle of spacing engagement is based on. For this reason , the paper offers a new design procedure for hob worm based on the planar engagement principle with the intention of simplific...
本文应用平面啮合原理精确设计各种非渐开线齿轮滚刀的基本蜗杆,提出并应用啮合线的投影原理从工件齿轮端截面的啮合线直接求得刀具蜗杆的端面齿形,而不必求出媒介齿条的齿形,方法很简单,还从啮合线的投影原理简明而形象地证明了一对螺旋齿轮直接啮合过程的啮合线是一条垂直于齿向的平面曲线。
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Rajeev Talwar, executive director at DLF, says such high-profile international acquisitions boost a company's corporate profile overseas, making it easier to raise financing and find partners for future acquisitions.
DLF执行董事拉吉夫·塔瓦尔表示,这种高调的国际收购可以提升一家公司在海外的企业形象,让日后的收购融资和寻找合作伙伴变得更容易。
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Rajeev Talwar, executive director at DLF, says such high-profile international acquisitions boost a company's corporate profile overseas, making it easier to raise financing and find partners for future acquisitions.
中国另一个收购外国高端与奢侈品牌的大手笔更为复杂。两年前,南京汽车和上海汽车工业公司两年前收购了英国MG罗孚集团的部分业务。
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82 Times as high as the flow rate at the inlet; the velocity profile in the lower region is relatively uniform, and changes at the exit from a parabolic shape towards a plug flow as Re increases; The strong circulating flow in the upper region is very favourable to evaporization of heated fluid because it not only forces all the heated fluid to flow through the liquid surface and, therefore, to evaporate effectively, but also causes a large part of fluid to recirculate to the liquid surface and, therefore, to get a second opportunity of evaporization. In addition, the uniform velocity profile in the lower region is also favourable to crystallizing process.
轴向进料蒸发室进口管侧上方有强烈的循环流存在,循环流流量为进口流量的1.48~1.82倍;循环流下部流速分布较均匀,出口区流速在低Re时为抛物线分布,高Re时接近活塞流;强烈循环流的存在不仅迫使加热流体全部流经液面及其附近进行充分蒸发,而且之后还使相当部分流体再次循环回到液面及附近进行二次蒸发,对蒸发操作十分有利;蒸发室下部流速的均匀分布亦有利于蒸发结晶过程。
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- 推荐网络例句
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Continuously improve the production mechanism, to provide customers with better quality products and services.
不断的完善生产机制,给客户提供更优质的产品及服务。
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B:Yes, he was the very prize-winner in the court tennis ten years ago?
是的,他是十年前的世界网球冠军。
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Objective:To investigate the effects of propofol on heart conduction system.
目的 :研究丙泊酚对心内传导系统的影响。