超微粒子及其应用的研究

本文介绍一种新型的功能材料——超微粒子。内容包括制备方法,粒度大小的测定方法,物理化学性质,以及它在化学工业、电子工业、尖端科学和基础理论研究中的应用。提出了今后优先考虑的课题:(1)从国外引进的感光材料、电子元件材料等的生产变成国内生产; (2)精密陶瓷; (3)传感器; (4)超微粒子在光化学,激光化学的应用; (5)超微粒子在分子电子学研究中的应用。     

鸡油菌,喇叭菌和钉菇的25SrDNA部分序列及其系统学关系

从分子系统学角度出发,对鸡油菌属（Ｃａｎｔｈａｒｅｌｕｓ）、喇叭菌属（Ｃｒａｔｅｒｅｌｕｓ）和钉菇属（Ｇｏｍｐｈｕｓ）的模式种的２５ＳｒＤＮＡ部分序列进行了测定,并与另外１０目的１３个担子菌和１个接合菌的２５ＳｒＤＮＡ序列进行比较分析,以接合菌总状毛霉（Ｍｕｃｏｒｒａｃｅｍｏｓｕｓ）为外类群构建出这些担子菌的部分２５ＳｒＤＮＡ序列的系统树图,探讨它们３属之间及它们与其他担子菌的关系及其系统学上的意义．认为鸡油菌与同科的喇叭菌关系最为亲近,而钉菇属看来也应该归入鸡油菌目Ｃａｎｔｈａｒｅｌａｌｅｓ中,这与传统方法的分析结果较为一致;虽然鸡油菌类真菌又与各肉质的伞菌类群的关系相对较密切,但它应该有其相对独立的进化路线,将这一类真菌上升至目一级的分类阶元是比较恰当的;但钉菇目Ｇｏｍｐｈａｌｅｓ上升到目的水平是否恰当则有待更多的数据去证明．     

鼻咽癌细胞核DNA倍体和颈淋巴结转移与预？…

目的：为加深对影响鼻咽癌（ＮＰＣ）预后因素的认识。方法：采用流式细胞仪（ＦＣＭ）对４４例ＮＰＣ癌细胞核ＤＮＡ进行检测,发现二倍本肿瘤（ＤＴ）１０例,近二倍体肿瘤（ｎＤＴ）１７例,非整倍体肿瘤（ＡＴ）１７例;４４例中,颈淋巴转移３５例,经放疗后３年追踪观察,鼻咽局部复发和（或）远处转移２４例。将不同ＤＮＡ倍体的ＮＰＣ、颈淋巴结转移和预后进行相关性分析。结果：ＮＰＣ ＤＮＡ倍体与转移之颈淋巴结及其大小     

Two kinds of Carlin-type gold deposite in southwestern Guizhou, China

Based on the organic geochemical studies on two typical Carlin-type deposits in southwestern Guizhou, as well as the comparison between the two deposits in terms of geological background, igneous rock, paleo-oilfield, lithofacies and paleogeographical and geochemical features, two kinds of Carlin-type deposit were proposed: Lannigou Type and Getang Type. The former includes Lannigou, Banqi and Yata gold deposits. These deposits are hosted by turbidite, geographically situated in the southwest of the mineralized district, and related genetically to paleo-oilfields. The latter includes Getang, Zimudang and Dachang gold (mercury and thallium) deposits, situated geographically in the northwest of the mineralized district where Emeishan basalt commonly occurs. These deposits are associated with reduction of coaly organic matter.     

Salt glands inGlycine soja L. China

A scanning electron microscope observation is carried out on Glycine soja L., which grows around the estuary of the Yellow River, in Kenli County, Shandong Province. It is first discovered that there are salt glands, in the shape of balls, on the surface of the stems and leaves of G. soja L., and distributed at the intercellular layer. With a handle at the base, the salt glands are not equal in size, and show a layer-upon-layer structure. They have a diameter of 21.6 μm, a handle length of 1.2 μm, their secretory pore's diameter is 5.6 μm. There are two ways to secrete salt ions: younger glands secrete salt ions through the secretory pore, and mature glands by breaking themselves.     

Synchrotron radiation photoemission study on growth of gadolinium film over Ni(110) surface

The growth of Gd film on Ni (110) surface was studied by synchrotron radiation photoemission spectroscopy and XPS techniques. It is revealed that in the coverage range of 0–0.22 nm Gd4f core level showed a single-peak structure, therefore Gd film grows over Ni(110) in the layer-by-layer mode. However, when Gd coverage was larger than 0.22 nm the Gd4f peak turned gradually into double-peak and a double-peak structure with 2.3 eV separation was formed at 1.51 nm, meanwhile similar phenomenon was observed in the Gd4d XPS spectra. It is suggested that the double-peak structure of Gd4f was derived from the growth of Gd film in cluster mode and the Gd atomic clusters may exhibit different electronic states from Gd metal owing to their special structures. The Gd4f double-peak e-volved into a single-peak on annealing at 600 K, implying that Gd clusters are thermodynamically unstable.     

二阶非线性微分系统解的振动比较定理

利用３个微分恒等式及线性泛函ｔｒ建立了二阶非线性微分系统（Ｐ（ｔ）Ｙ′（ｔ））′＋Ｑ（ｔ）Ｙ（ｔ）＋Ｆ（ｔ,Ｙ（ｔ）,Ｙ′（ｔ））＝０解的振动比较定理．     

关于改善太原市大气污染现状的探讨

目前,太原市的大气污染已相当严重,主要原因是老式锅炉以原煤为燃料,生成大量悬浮烟尘和二氧化碳通过烟囱排入大气所致。为改善太原市大气污染现状,必须将原煤洗选为洗精煤,引进并开发适合我国国情的除尘、脱硫效果好的先进技术与设备。     

攀西地区小麦育种目标的制定

本文根据近年来国内外对小麦育种动态的研究情况。结合攀西地区实际,通过对该地区小麦生产地的抽样调查与分析,制定出了适合该区区域特点的小麦育种目标。     

庞加莱球的光纤应力测量

推导用斯托克斯参数表示的光纤应力计算公式．指出在一个无损耗单元内,从一个偏振态到另一个偏振态的任何变化,都对应着庞加莱球相对于直径的一个旋转．如果令球的半径为R=k(相位应力系数),则压应力F可用球与S2OS3平面相交圆上的一段大圆弧表示．当入射光为线偏振光时,若单模光纤无固有双折射,则F=k[tg^-1(S3/S2)];若单模光纤存在固有双折射,可将固有双折射看成-初始附加压力Fo的作用结果．给出斯托克斯参数测量值和光纤应力计算值．并比较实际外加应力．结果与实际情况相符。