棉花气候资源分析系统的初步研究

本系统利用计算机的数据库语言 Ｆ Ｏ Ｘ Ｂ Ａ Ｓ Ｅ 对新疆北疆宜棉区、次宜棉区、风险棉区进行了气候资源分析,并应用联合国粮农组织（ Ｆ Ａ Ｏ） 的光温潜力、光温水潜力的农业生态区域分析法进行了其生产潜力潜势的研究,可为宏观指导棉花种植提供科学依据。系统设计和编制了气候资料录入、信息查询、潜力估算、打印输出、管理咨询、系统维护六大模块,可进行查询、录入、修改及对该区进行积温、日照等气候资料的统计计算,并进行资源评价、分析。     

新疆风险棉区棉花生产潜力估算及种植对策

采用FAO计算作物生产力的农业生态区域法 ,对新疆风险棉区棉花生产潜力、潜势进行了估算和评价。找出了温度是该地区棉花生产的主要限制因子 ,提出相应的管理措施 ,以便扬长避短 ,减轻限制因子障碍作用 ,挖掘棉花潜力     

利用自然资源 发展多熟制棉田

发展多熟制棉田,提高棉田总体经济效益,已在我国大部分棉区蓬勃兴起。据阜阳市统计,1996年全市植棉119.72万亩,其中两熟制棉田92.07万亩,占76.9％,多熟制棉田10.958万亩,占9.15％。发展多熟制棉田,主要在于充分利用本地现有的土地、温、光、水、肥等自然生态资源及丰富的劳动力资源,建立以棉花为主体的间作套种共生群体,提高复种指数,增加单位面积的产量或产值,实现多熟、高产、优质,以达增产增收之目的。     

控制农村白色污染 改善农业生态环境——推进甘肃省多功能长效转光膜推广应用的对策

全面分析了甘肃省地膜覆盖技术应用的现状及应用中存在的主要问题,并从有利于利用甘肃省丰富的光热资源、显著提高地膜应用技术水平、促进粮食安全生产,提升农产品品质等三个方面阐述了应用多功能长效转光膜重大意义。提出加快推进多功能长效转光膜对策建议。     

阶跃光激励的光热光偏转实验系统及实验结果分析

根据光热光偏转技术原理,设计了一套阶跃光激励的光热光偏转实验系统,并利用该实验系统研究了光热光偏转信号与激励光功率的关系;探索了实验条件和样品热学参数对光热光偏转信号的影响,获得了信号随探测光距样品表面的距离以及样品热扩散率的变化规律。     

新疆石河子地区棉花生产潜力潜势研究

采用ＦＡＯ计算作物生产力的农业生态区域法,对新疆石河子地区棉花生产潜力潜势进行分析研究。以该区自然资源潜力为重点,估算和评价了该区棉花的光温、光温水潜力,并与实际产量进行对照分析,找出该地区棉花生产的主要限制因子,提出合理的管理措施,以便扬长避短减轻限制因子作用,挖掘作物优势潜力,对该地区的农业生产发展和决策规划具有战略意义。     

石河子垦区加工番茄存在的问题及解决对策

<正>新疆由于光热资源丰富、昼夜温差大、高温干旱、降雨量少,是种植加工番茄品质优、产量高的地区。新疆种植的加工番茄以番茄红素含量高和可溶性固形物含量高、单产高、     

黑河绿洲农业自然资源空间组合与潜力研究

着重计算分析了黑河流域的光合潜力、光温潜力和光温水土潜力的分布变化规律,计算结果表明,光温潜力衰减明显,衰减最为明显的区域是上游祁连山区和下游额济纳三角洲地区,分别达68％和64％,尽管如此,目前实际的生产力远未达到农业自然生产潜力,中游地区的高位冷凉型绿洲（1700－2300m）增产潜力最大,是最具有发展潜力的区域,光、热、水、土资源的空间组合错位,限制了农业自然生产潜力的进一步发挥,对作物气候适宜性的贫民是规律的认识有助于农作物的合理布局,为绿洲农业资源的优化配置和农业结构调整提供理论依据,将不同种类的农作物安排在最适宜的种植区,高位冷凉绿洲区今后应以春小麦、马铃薯、胡麻、油菜、蚕豆等为主,逐步压缩中位绿洲春小麦种植面积,中位绿洲（1100－1400m）及低位绿洲（900－1100m）以玉米、谷子和瓜、果、蔬菜、棉花等经济作物为主,大力发展节水灌溉技术,以期最大限度地发挥水、土、光、热资源潜力。     

我国棉田蜘蛛的种类、分布和种群数量变动的分析

棉花是我国主要的经济作物,我国是世界上植棉最大的国家之一.棉区分布辽阔,自然条件变化大,栽培制度复杂,棉虫种类繁多.而棉虫无敌的种类也很多,其中蜘蛛作为棉虫天敌加以研究和利用是最近几年的事情.几年来,随着棉虫天敌资源的调查和研究,对于棉田蜘蛛的种类和发生情况已积累了一定的资料.现在根据新疆棉区、辽宁棉区、黄河流域棉区和长江流域棉区蜘蛛的种类和发生情况作初步分析,为保护和利用蜘蛛来控制棉虫提供依据.     

红枣优质丰产栽培技术

由于新疆昼夜温差大,常年干旱少雨,空气干燥,积累了大量丰富的光热资源,为红枣大规模发展提供具有得天独厚的自然条件。随着红枣的不断发展,其在新疆整体果业中占据着举足轻重的地位,文中论述了新疆有机红枣的树体管理、花果管理、土壤和水肥管理及病虫害防治等方面,为红枣的优质丰产技术进行总结,从而提高新疆红枣产量,从而更好地促进新疆社会经济的发展和区域优势资源的开发。     

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.     

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.     

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.     

A computer generator for randomly layered structures

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

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to