咸阳多索线虫生活史的研究

对咸阳多索线虫Ａｇａｍｅｒｍｉｓ ｘｉａｎｙａｎｇｅｎｓｉｓ Ｘｕ ｅｔ Ｂａｏ的研究表明，其生活史为一年一代。在１８℃～２５℃条件下，卵内发育约需２５ｄ，Ⅱ期幼虫维持感染活力１～７ｄ，寄生期２５～３０ｄ。５月上旬开始产卵，６月为Ⅱ期幼虫孵出高峰期，７月为寄生高峰期，１１月至次年４月上旬寄生后斯功虫脱皮为成虫，５月上旬产卵并开始下一个周期。     

贮存时间对武昌罗索线虫寄生前期幼虫感染率的影响

将武昌罗索线虫寄生前期幼虫贮存于０－５℃条件下，其有效率分别是：３ｄ为９０．５％；６ｄ为８６．８％；９ｄ为８１％；１２ｄ为７８％；１５ｄ为６７．５％；２１ｄ为３１．３％；２７ｄ为２６％，蚊幼虫的寄生率分别是：３ｄ为９３％；６ｄ为９２％；９ｄ为９３％；１２ｄ为９０％；１５ｄ为８２％；２１ｄ为６３．５％；２７ｄ５７％，经方差分析，其有效率在１２Ｄ之间无显著性差异。Q     

厦门卵索线虫生物学特性及对蝗虫自然控制作用的初步研究

寄生于蝗虫的厦门卵索线虫（Ｏｖｏｍｅｒｍｉｓｘｉａｍｅｎｅｎｓｉｓ）生活史周期为一年，流行时间为４～１０月，但在６～７月感染率为最高。在本种线虫流行区内，单位面积草地上蝗虫虫口数比非流行区明显降低，对蝗虫种群数量有显著的自然控制作用。     

常用化肥对长沙多索线虫生活力的影响

研究了五种氮肥对长沙多索线虫生活力的影响，结果表明，对成虫，ｗ（ＣＯ（ＮＨ２）２大于２．０％，ｗ（ＮＨ４ＮＯ３）大于１．０％ｗ（ＮＨ４）２ＳＯ４）大于０．２５％ｗ（ＮＨ４ＣＩ）大于０．５％时就有致死作用；而ｗ（ＮＨ４ＨＣＯ３）的致死作用更强，浓度大于０．１％时线虫死亡，对寄生前期幼虫，四种常用化肥的质量分数大于０．２％时致死或抑制其活力。     

长沙多索线虫生物学特性的研究

１９９３～１９９４年对寄生于稻飞虱的长沙多索线虫在湖北省的分布进行了调查，结果表明所调查到稻田均有分布，其宿主有褐飞虱等４种，寄生率为６３％～９２．５％，线虫在田间呈聚群分布，土壤含水量低于１５％的时致死。     

厦门卵索线虫生活史的初步研究

报道厦门岛西南部沿海寄生于蝗虫体内的厦门卵索线虫的生活史，对发育过程和发育各期的形态特征进行了较详细的描述。本种线虫生活周期为一年。     

光合细菌在对虾育苗生产中的应用

１９９５年４月２４日～５月８日，在登高岛盐场育苗场５０ｍ＾３，水体育苗池，进行了用几株光合细菌（ＲｈｏｄｏｐｓｅｕｄｏｍｏｎａｓＳ．Ｐ．）混合菌液作为中国对虾（Ｐｅｎａｅｕｓｃｈｉｎｅｎｓｉｓ）苗期水质净化剂及辅助饵料，取得了明显效果，育苗池水透明度提高约２０ｃｍ，幼体挂脏率下降５０％，变态提早１ｄ左右，且多产仔虾百万尾。     

首排管径增大时顺排管束的对流换热

采用蔡升华质热比拟技术对首排管径增大时：ｓ１／ｄ＝３，ｓ２／ｄ＝１．１的顺排管束的强制对流换热进行了实验研究，管径比的范围为ｄ１／ｄ＝１．０～１．４４，Ｒｅｙｎｏｌｄｓ数的范围为３０００～１００００．通过对局部与平均换热系数的测量表明：首排管径增大时，后排管的换热与标准顺排管束相比显著增强；管径比越大，影响的排数越多；文中给出了３种管径比下的修正系数，本文的研究结果对解决现代大容量电站锅炉的对流过热器和屏式过热器的同片热偏差有着重要的意义。     

MINT方案治疗难治和复发恶性淋巴瘤15例

为观察ＭＩＮＴ方案对难治及晚期复发恶性淋巴瘤的疗效和副作用。方法：我科１９９４年１月～１２月住院的恶性淋巴瘤患者１５例,经临床和病理组织学确诊。其中男１３例,女２例,中位年龄４５岁（１３～６５岁）。８例属难治,晚期复发的７例。１５例患者使用的ＭＩＮＴ方案为：美斯钠（Ｍｅｓｎａ）３００ｍｇ·ｍ－２·ｄ－１,静注,每４ｈ一次,每天３次,第１～３ｄ;异环磷酰胺（Ｉｆｏｓｆａｍｉｄｅ）１３３ｇ·ｍ－２·ｄ－１,静注,第１～３ｄ;米托蒽醌（Ｎｏｖａｎｔｒｏｎｅ）８ｍｇ·ｍ－２·ｄ－１,静注,第１ｄ;威锰２６（Ｔｅｎｉｐｏｓｉｄｅ）６５ｍｇ·ｍ－２·ｄ－１,静注,第１～５ｄ。一疗程后间歇２１～２８ｄ重复治疗一次。结果：获完全缓解者６例,部分缓解者２例,无效者７例,总缓解效率达５３３％。取得缓解所需的中位数时间为２３ｄ（２０～３０ｄ）,中数淋巴瘤;ＭＩＮＴ方案;化疗     

北美鹅掌楸和中国鹅掌楸种间杂交胚胎学

１．中国鹅掌楸花粉在北美鹅掌楸柱头上萌发良好，速度快且整齐。２．花粉管生长速度最早在８０ｈ进入胚囊，大多数在１２０ｈ以后。个别花粉管在花柱中顶端膨大、破裂，或行至珠孔发生扭曲现象。３．花粉管通过柱头沟和花柱道时生长快，通过珠孔塞和珠孔以及珠柄时生长缓慢。４．控制授粉后５ｄ左右发生双受精，合子休眠约２０ｄ左右，３０ｄ左右是球形胚，９０ｄ子叶胚形成；１４０ｄ胚分化完成，种子成熟。５．连续三年的结籽率调     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-