激光对改变胰岛致免疫性的影响

新生猪胰岛样细胞团经准分子激光照射预处理后，其免疫原性明显降低，表明经激光预处理，有可能延长移植物存活时间。     

高效蛋白质浓缩剂的制备及浓缩作用的研究

采用自由基水溶液聚合方法合成了超高分子量的丙烯酸（钠）聚合物。该聚合物具有高达几十倍至上千倍的吸水能力，通过适当控制聚合物的交联度使其成为具有一定孔径的网状物，可用于生物大分子，如：蛋白质溶液或其它生物提取液的浓缩。试验了用反透析法浓缩胰蛋白酶的方法，与直接加入浓缩法相比，能够更好地保持酶的活性。与传统的浓缩方法相比，用该方法浓缩蛋白质具有效率高，浓缩剂用量少的优点。     

信号情报接收机的发展现状及趋势

信号情报系统主要由天线，接收机和处理器三大部分组成，接收机是信号情报系统的一个重要组成部分。本文主要对几种信号情报接收机的原理和现状作了介绍，并对其发展方向提出看法。     

Shape Hessian for generalized Oseen flow by differentiability of a minimax: A Lagrangian approach

The goal of this paper is to compute the shape Hessian for a generalized Oseen problem with nonhomogeneous Dirichlet boundary condition by the velocity method. The incompressibility will be treated by penalty approach. The structure of the shape gradient and shape Hessian with respect to the shape of the variable domain for a given cost functional are established by an application of the Lagrangian method with function space embedding technique. This work was supported by the National Natural Science Fund of China (No. 10371096) for ZM Gao and YC Ma.     

亚细胞器诱导的2,4,6-三硝基甲苯阴离子自由基的ESR研究

本文在无氧条件下利用ESR分别观察了肝脏和晶状体的微粒体及线粒体酶在NADPH存在下还原三硝基甲苯(TNT)的过程,检测到参数为g=2.0048±0.0005,A_对位~N=1.215mT,A~N=0.800±0.010mT,A~H=0.122±0.0206mT的自由基信号,并通过电子计算机对ESR谱的模拟证明该自由基信号为TNT硝基阴离子自由基,根据其超精细分裂常数认为,其不配对电子的电子云密度主要分布在对位硝基上。     

电子束装置运行稳定性的测量

 为了验证电子束装置的稳定性,分别对电流波形、电压波形进行了多次测量,对二极管放电时注入腔中电子均匀性进行了探测,最后改变二极管真空度测量了泵浦氩的荧光 谱的稳定性。     

Poly[[diaqua(N,N‐dimethylformamide‐κO)manganese(II)]‐μ3‐sulfato]

In the title complex, [Mn(SO₄)(C₃H₇NO)(H₂O)₂]_n, each Mn^II ion has a distorted octahedral geometry formed by three O atoms of three different sulfate groups, one O atom of a dimethylformamide ligand and two water molecules. The sulfate groups act as tridentate bridging ligands connecting the Mn^II ions into a two‐dimensional layer structure which can be regraded as a 4.8² network.     

A CLASS OF NEW NONCONFORMING FINITE ELEMENTS

A class of new nine-parameter nonconforming finite elements with convergent prop-erties are constructed in terms of the approach of interpolation methods in this paper. All of those finite elements can be viewed as the generalization of Zienkiewicz's finite element by dis-lurbing its parameters.     

ICP－AES法测定富锗酵母中微量元素

本文采用美国ＬｅｅｍａｎＬａｂｓ公司中阶梯光栅光谱仪测定了人工培养的富锗酵母中高含量锗及镁、铜、锌、铁、钾、钠等微量元素，研究了富锗样品的前处理方法，样品加标回收率在９０％－１０３％之间，测量相对标准偏差：锗１０％，镁、铜、锌、铁、钾、钠等元素小于７％。     

Rb3Y2(BO3)3 with a noncentrosymmetric structure

Trirubidium diyttrium triborate contains zigzag chains of corner‐sharing [Y₂O₁₀] dimers. The chains are reinforced by one independent BO₃ group and crosslinked by the other two types of BO₃ groups to form a three‐dimensional framework. Channels along the [100] direction accommodate the Rb⁺ cations.