甘蓝型油菜萝卜质不育系恢复材料Ad-6(F4)测交二代恢复株TCF2的快繁及生根

油菜萝卜胞质不育系恢复材料Ａｄ－６（Ｆ４）测交二代恢复株ＴＣＦ２,在ＭＳ附加５ｍ ｇ／Ｌ６－ＢＡ＋ ０．５ｍ ｇ／Ｌ ＮＡＡ,３ｍ ｇ／Ｌ ６－ＢＡ＋ ０．２ｍ ｇ／Ｌ ＮＡＡ,３ｍ ｇ／Ｌ ６－ＢＡ＋ ０．３ｍ ｇ／Ｌ ＮＡＡ＋６００ｍ ｇ／Ｌ水解乳蛋白以及５ｍ ｇ／Ｌ６－ＢＡ＋ ０．３ｍ ｇ／ＬＮＡＡ＋ ５ｍ ｇ／ＬＡｇＮＯ３ 的不同培养基上诱导丛生芽,结果表明５ｍ ｇ／Ｌ６－ＢＡ＋ ０．３ｍ ｇ／ＬＮＡＡ＋ ５ｍ ｇ／ＬＡｇＮＯ３ 对ＴＣＦ２ 诱导丛生芽有较好的效果．小芽生根培养基为１／２ＭＳ效果最好．     

分光光度法测定粉煤灰中微量锌

利用Ｚｎ（ Ⅱ） － ＳＣＮ－ － ＲｈＢ－ ＰＶＡ 显色反应体系进行锌（ Ⅱ） 的研究,建立了一种新的光度法测定痕量锌（ Ⅱ）－ 结果表明,在盐酸介质中具有高灵敏度的显色反应,表观摩尔吸光系数为１ ．５８ ×１０６ Ｌ／ｍｏｌ·ｃｍ ,Ｚｎ（ Ⅱ） 量在０ ．０ ～０ ．０４０ ｍｇ／Ｌ的范围内服从比耳定律－ 用于测定粉煤灰中微量锌,结果令人满意－ 图４ ,表１ ,参６－     

5－Br－PADN双峰双波长法测定铁（Ⅲ）

研究５－Ｂｒ－ＰＡＤＮ与铁（Ⅲ）的显色反应，在ｐＨ９．０～９．４范围内，当有１０％ＳＤＳ存在时，铁（Ⅲ）与５－Ｂｒ－ＰＡＤＮ形成１：４的稳定配合物。λ＿（ｍａｘ）为５３４ｎｍ，ε为５．１３×１０￣４Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），铁（Ⅲ）浓度在０～１２．５×１０￣（－４）ｇ／Ｌ范围内符合Ｂｅｅｒ定律，用双峰双波长法测定茶叶中痕量铁（Ⅲ），结果满意。     

5—Br—PADN双峰双波长法测定铁（III）

研究５－Ｂｒ－ＰＡＤＮ与铁（Ⅲ）的显色反应，在ｐＨ９．０￣９．４范围内，当有１０％ＳＤＳ存在时，铁（Ⅲ）与５－Ｂｒ－ＰＡＤＮ形成１：４的稳定配合物。λｍａｘ为５３４ｎｍ，ε为５．１３×１０＾４Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，铁（Ⅲ）浓度在０￣１２．５×１０＾－４ｇ／Ｌ范围内符合Ｂｅｅｒ定律，用双峰双波长法测定茶叶中痕量铁（Ⅲ），结果满意。     

含铜复杂金矿的无害化综合回收工艺研究

提出了一种无污染新工艺处理 含铜复杂金精矿,新工艺 的特色是 低压氨 浸出铜然 后硫代硫酸盐提取金（ 无元素硫问题,副产硫酸 铵）适宜 的低 压氨预 浸工 艺条件 为：再磨 粒度 在－ ０ ．０４５ ｍ ｍ的占６ ５ ％ 以上,浸 出温度１２０ ℃,浸 出氧压０ ．５ Ｍ Ｐａ ,氨浓度４ ５ ｇ／ Ｌ氨浸 渣可采 用常规硫 代硫盐浸金方 法方便 地提取金 研究结 果表明, 预处理阶 段铜提 取率在９５ ％ 以 上,后 续金 浸出 中金 的浸出率及 吸附率 分别在９６ ％ 和 ９９ ％ 以上,即 总金回收 率在９５ ％ 以上图 ５ ,表 ４ ,参 ９     

单扫描示波极谱法测定对苯二胺

利用 Ｃｕ２＋ 催化溶解 Ｏ２ 氧化对苯二胺（ Ｐ Ｐ Ｄ） 的化学反应,极谱法检测氧化产物,建立了示波极谱法测定对苯二胺的新方法． 实验表明, 对苯二胺在 ０．０２ｍ ｏｌ／ Ｌ Ｃｕ２＋ － ０．２ｍ ｏｌ／ Ｌ Ｎａ２ Ｈ Ｐ Ｏ４ － ０．１ｍ ｏｌ／ Ｌ Ｋ Ｈ２ Ｐ Ｏ４ 介质中能够产生一灵敏的阴极还原波, 峰电位为 － ０．４４ Ｖ（ｖｓ． Ｓ Ｃ Ｅ）,峰电流与对苯二胺的浓度在１０ ～２００ｎｇ／ｍ ｌ范围内有良好的线性关系,检测限为７．０ｎｇ／ｍ ｌ．可应用于低含量工业废水中对苯二胺的测定．     

金精矿中银的打萨宗光度分析法研究

本法基于在微酸性（ｐＨ４～５）介质中，银（Ⅰ）与打萨宗生成内络盐显色络合物，被ＣＣｌ４（或氯仿、苯）定量萃取，呈黄色，λｍａｘＣＣｌ４为４６０ｎｍ，ε４６０为３０５×１０４Ｌ·ｍｏｌ－１·ｃｍ－１．方法操作简捷，具有灵敏度和准确度比较高等特点，在０１～２５ｍｇ／Ｌ范围，符合Ｌａｍｂｅｒｔ－Ｂｅｅｒ定律．     

表面活性剂增敏催化光度法测定痕量铬(Ⅵ)

基于存在增敏剂十六烷基三甲基溴化铵, 铬 （ Ⅵ） 催化过氧化氢氧化溴甲酚红的反应,拟定了测定痕量铬 （ Ⅵ） 的新催化光度法本法由于添加了十六烷基三甲基溴化铵, 灵敏度提高７ 倍, 测定铬 （ Ⅵ） 含量线性范围为００２ ～０２０μｇ／ｍ Ｌ, 检出限为２６ ×１０ － ３ μｇ／ｍ Ｌ, 相对标准偏差为１１ ％ （ ｎ ＝ ９） , 可用于测定铬酸钡的溶度积和电镀废液中的铬 （ Ⅵ）      

非有机溶剂萃取光度法测定铀的研究—PEG—Arsenazo Ⅱ—（NH_4）_2SO_4体系

本文研究了偶氮胂（Ⅲ）作萃取剂和显色剂，在ＰＥＧ－（ＮＨ４）２ＳＯ４－Ａｒｓｅｎａｚｏ（Ⅲ）体系中的非有机溶剂萃取光度法测定铀．将配合物从ｐＨ２．０（ＨＣｌ）溶液或ＨＣｌ—ＮａＡｃ缓冲溶液）水溶液中萃取至ＰＥＧ相，其最大吸收波长位于６５５ｎｍ，摩吸光系数为３．０×１０４Ｌ．ｍｏｌ－１．ｃｍ－１，Ｕ（ＶＩ）的线性范围为０－４．５μ／ｍｌ，轴与ＡｒｓｅｎａｚｏＣ（Ⅲ）的配位组成为１：１．将方法用于煤渣中铀的测定，获得了满意结果．     

MPEG-2 DCT系数码表的优化

给出了一种优化ＭＰＥＧ－２ 的ＤＣＴ系数码表＿ ０／１ 的方法．其基本思路是：在ＥＯＢ码字后添加一个附加比特引入一个附加的ＦＬＣ码表,用此ＦＬＣ码表取代现有ＭＰＥＧ－２ 的ＤＣＴ 系数码表＿ ０／１ 中较长的ＶＬＣ码字．结果表明,此方法可在压缩性能及运算量两方面对ＤＣＴ系数码表＿ ０（ＰＳＮＲ＝ ２７～４０ ｄＢ）及ＤＣＴ系数码表－ １（ＰＳＮＲ＝ ３０～４０ ｄＢ）实现优化,ＰＳＮＲ值越高,优化效果越显著．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that