鸡蛋浸泡贮存过程中鲜度变化研究

通过对鸡蛋浸泡贮存１０个月的鲜度变化观测，发现１～３ｄ蛋龄蛋在浸泡贮存过程中蛋黄系数、浓蛋白含量、气室、散黄率和哈夫值，与鲜蛋相比变化不大，ｐ＞０．０５，且１ｄ蛋龄蛋鲜度变化幅度小于３ｄ蛋龄蛋．     

室内自然温度下鸡蛋浸泡贮存后的干放试验

室内自然温度下使用ＡＡＮ浸泡液浸泡鸡蛋一个月之后捞出干放八个，气室变化平均不超０．００４ｍｌ，干耗率在４％左右，可食率达９７．４％以上，完好率在９５％以上，蛋黄系数在０．３８４－０．３８６之间，干放蛋的几项鲜度指标与贮前鲜蛋和捞出时的浸泡蛋相比，差异性均不显著，Ｐ＞０．０５。     

植物生长调节剂对苏丹草产量及粗蛋白的影响

采用裂区试验方法。结果表明：喷洒后７ｄ，株高ＧＡ３处理极显著高于ＮＡＡ处理（Ｐ＜０．０１）。１００ｍｇ．Ｌ－１ＧＡ３１５．１０－３ｋｇ．ｍ－２处理互作效应显著（Ｐ＜０．０５）。ＧＡ３处理使干物质中ＣＰ含量上升，ＣＦ含量下降。ＮＡＡ处理则相反。ＧＡ３处理影响一、二茬草，ＮＡＡ处理影响第一茬草。１００ｍｇ．Ｌ－１ＧＡ３、１５．１０－３ｋｇ．ｍ－２处理组合显著提高ＤＭ产量（Ｐ＜０．０５）。     

3,5-二溴水杨醛缩4-氨基安替比林与铜的荧光猝灭反应及其应用

研究了新荧光试剂３ ,５ － 二溴水杨醛缩４ － 氨基安替比林（ 简称：３ ,５ － ＤＢＳＡＡＰ） 与铜的荧光猝灭反应体系的最适宜的条件。３ ,５ － ＤＢＳＡＡＰ 发射强的荧光,λｅｘ／ｅｍ ＝ ３９３ｎｍ／５１０ｎｍ 。在ｐＨ９ ．０ 的ＮＨ３ － ＮＨ４Ｃｌ 缓冲介质中,Ｃｕ（ Ⅱ） 与３ ,５ － ＤＢＳＡＡＰ在室温反应使其荧光猝灭。据此建立了铜的分析方法,线性范围为１ ．６ ×１０ － ５ ｍｏｌ／Ｌ～１ ．２ ×１０ － ７ ｍｏｌ／Ｌ。用于测定人发中的铜,结果满意。     

藏山羊产乳性能和乳酶及乳清蛋白的测定

对分布于青藏高原地区和山谷地区藏山羊的泌乳性能和乳清蛋白组分，及山谷地区域山羊乳酶力进行了测定，结果表明：高原地区藏山羊产乳量平均为２４．０ｋｇ，乳中营养成分含量（％）：乳脂为４．８±１．２、乳糖为４．５９±０．７５、乳蛋白为４．８７±０．６１；山谷地区藏山羊产乳量平均为３６．６２ｋｇ，乳中营养成分（％），乳脂为５．３±１．５、乳糖为４．９９±０．４５、乳蛋白为３．０８±０．４８．山谷地区的藏山羊乳酶，ＬＤＨ、ＡＫＰ，Ｒ－ＧＴ和ＬＰ和活力分别为８１．９±３７．８、７．７±３．５、４３７．４±９３．０、５３２．７±２０２．６单位，ＬＰ在体外可被１０￣（－５）ｍｏｌ／Ｌ的硫氰酸根或乳酸根活化，经琼脂糖凝胶平板电脉，可将乳ＬＤＨ分离出ＬＤＨ＿１、ＬＤＨ＿２和ＬＤＨ＿３三条带，各带所占有百分比分别为５０．６±４．５、３１．６±４．２和１７．８±３；３．采用ＳＤＳ－ｐＡＧＥ，乳清蛋白显示出五条区带，即ＳＡ、Ｉｇ－Ｈ、Ｉｇ－ｌ，β－Ｌｇ和α－Ｌａ。乳清蛋组分（％）：高原地区藏山羊ＳＡ为６．６±３．０、Ｉｇ为２２．９±６．５、β－Ｌｇ为４７．５±９．１和α－Ｌａ为２３．０±１０．６；山谷地区藏山羊相应为６．６±２．６、２     

钇一二溴PADAP-CPC三元络合物的研究

在ＰＨ８．０—８．５之间，钇能与３，５—Ｂｒ２－ＰＡＤＡＰ及氯代十六烷基吡啶（ＣＰＣ）反应，生成一 种紫色三元络合物．其组成为钇：３，５—Ｂｒ２－ＰＡＤＡＰ：ＣＰＣ＝１：３：３。吸收峰位于５８４ｍｍ，摩 尔吸光系数ε５８４＝１．２９Ｘ１０５．在０－５ｕｇ／１０ｍｌ范围内符合比尔定律。在硫酸钠存在下，１０倍镧， 同量铈不影响钇的测定．在酒石酸钾钠存在下，６倍钪不影响钇的测定．     

T（4—AP）P的合成及与镉反应的分光光度法研究

合成了非水溶性显色剂ｍｅｓｏ－四（４－氨基苯基）卟啉（简称Ｔ（４－ＡＰ）Ｐ）,研究了Ｃｄ（Ⅱ）－Ｔ（４－ＡＰ）Ｐ－Ｔｗｅｅｎ－８０－８－羟基喹啉体系的最佳形成条件,在ｐＨ１２．５￣１２．８的强碱性介质中,沸水浴加热２０ｍｉｎ反应进行完全。Ｃｄ（Ⅱ）与Ｔ（４－ＡＰ）Ｐ的摩尔比为１：２,在配合物最大吸收波长４４６ｎｍ处的表观摩尔吸光系数是３．０８×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１,镉量在０￣６．０     

用诱导剂在PVA介质中研究锰(Ⅱ)催化氧化灿烂绿显色反应

提出锰（Ⅱ）在诱导剂存在下，ＰＶＡ介质中用高碘酸钾氧化灿烂绿染料的显色反应电子光谱，反应的最佳条件（ｐＨ＝５．７，ＫＩＯ４和灿烂绿浓度各为２．００×１０－３ｍｏｌＬ－１，４．５８×１０－２ｍｏｌＬ－１等）．在３．５～６．５ｍｉｎ之间吸光度与时间呈线性关系，Ｍｎ（Ⅱ）离子浓度在０～０．０６μｍｏｌＬ－１范围内遵守比尔定律，测得摩尔吸光系数ε４７０＝７．２×１０６，是一超灵敏显色反应，显色稳定性较好．     

钌（Ⅲ）—KIO4（或KBrO3）—3,5—Br2—PADAP体系催化光度法测…

首次报道了硫酸介质中微量钌（Ⅲ）对ＫＩＯ４（或ＫＢｒＯ３）氧化２－（３，５－二溴－２－吡啶）－偶氮－５－二乙氨基苯酚（３，５－Ｂｒ２－ＰＡＤＡＰ）褪色具有显著的催化使用，并以此反应为指示反应建立了测定微量钌的催化光度法，在Ｒｕ（Ⅲ）－ＫＩＯ４－３，５－Ｂｒ２－ＰＡＤＡＰ体系中，钌（Ⅲ）含量在０．０８０～０．３００μｇ／１０．０ｍｌ范围内符合比耳定律，在Ｒｕ（Ⅲ）－ＫＢｒＯ３－３，５－Ｂｒ２－ＰＡＤ     

甜菜碱对肉用仔鸡生长性能的影响

将２００只１日龄艾维茵肉用仔鸡随机分为４组（Ｉ、Ⅱ、Ⅲ、Ⅳ组），每组５０只，饲喂４种不同处理的日粮５周（含甜菜碱０、５×１０－４、１×１０－３、１．５×１０－３），自由采食和饮水，测定增重和饲料消耗。结果表明，３周龄时各组鸡平均体重差异不显著（Ｐ＞０．０５），但在５周龄时饲喂５×１０－４甜菜碱的鸡增重提高１６．５％（Ｐ＜０．０１），并使饲料消耗降低１．２％，其他试验组差异不显著。可见饲料中添加甜菜碱对提高肉用仔鸡生长性能、降低饲料消耗具有显著的经济效益。     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the