向外长波辐射(OLR)年际变化的时空分布分析

 运用1980～2001年7°S～7°N,0°～360°向外长波辐射(OLR)资料,计算获得各月OLR的均方差.结果表明:从全年的变化趋势来看,就整个全球纬向平均而言,低纬地区向外长波辐射的变化比中高纬地区向外长波辐射的变化约大1个量级;在80°E～10°W热带中东印度洋、西太平洋暖池以及热带中东太平洋一带(20°S～20°N)的OLR变化最显著,约在1 W/m²左右;其中特别是"暖池"附近OLR的年际变化最大,其次是热带中东太平洋地区,再次是中东印度洋地区;1年当中,夏季6～8月OLR年际变化较小,平均在11 W/m²左右;冬季12～2月OLR年际变化大,平均在1W/m²左右.低纬地区向外长波辐射的变化具有明显的季节性突变特征,主要突变时间发生在春末夏初的,6月和秋季的10月.同时,根据上述OLR变化特征确定了OLR年际变化最大的关键区.     

大沙鼠栖息地植被类型和洞群面积的初步研究

2004年9~10月在内蒙古西部地区,对大沙鼠栖息地植被类型进行了调查,并对分布于盐爪爪+白刺固定沙丘和盐爪爪两种生境大沙鼠的洞群面积及数量进行了分析.结果表明:大沙鼠的分布并非依赖于梭梭,在其他植被类型中亦有分布,且密度较梭梭林要高;大沙鼠洞群的分布在盐爪爪+白刺生境密度高,洞群面积也大.大沙鼠洞群的数量与白刺固定沙丘的数量存在着显著的正相关关系,表明盐爪爪+白刺固定沙丘是大沙鼠洞群分布的适宜生境.     

西北太平洋柔鱼资源丰度时空分布的GAM模型分析

根据1996~2001年我国在西北太平洋海域柔鱼生产统计及相关数据,利用GAM模型分析了表温、月份、经纬度等因子对柔鱼资源丰度CPUE的影响.研究认为,经纬度、月份和表温对CPUE时空分布都有较大的影响.160°E以西海域CPUE高,而165°E以东海域低,并主要集中在40°N~43°N海域.8~10月CPUE为最大.不同海域柔鱼分布的适宜表温不相同,150°E以西海域为13~18℃,150°E~165°E海域为14~18℃,165°E~180°E海域为11~14℃.     

微波治疗慢性宫颈炎临床观察

慢性宫颈炎是妇科常见病、多发病,该病可引起白带增多、接触性出血、腰骶部酸痛、不孕等,病情顽固而久治不愈,呈长期慢性过程,虽经阴道塞药,但效果不甚理想.我院自1993年10月～1995年12月,使用MTC—3型多功能微波治疗仪治疗宫颈炎112例,疗效满意,现报道如下;一、临床资料从1993年10月～1995年12月,到本院门诊就诊的宫颈糜烂病人112例,其中轻度糜烂(Ⅰ°)10例,中度糜烂(Ⅱ°)72例,重度糜烂(Ⅲ°)30例,年龄为26岁～44岁.均为已婚.治疗前常规行宫颈刮片及阴道分泌物检查,排除子宫颈癌及滴虫、霉菌、淋菌等感染,于月经干净后3天～7天治疗.     

用正电子湮没研究电子辐照Ni_3Al的回复

金属间化合物 Ni_3Al 试样室温下用2.0MeV 电子射线进行了辐照,随后分别进行了等时和等温退火,用正电子寿命法研究了空位的行为.发现镍空位和铝空位分别在160°～270℃和220°～420℃退火.估计了镍空位的迁移激活能,结果为 E_v~m=1.2±0.2ev,并发现镍空位的退火属二级反应.     

新发现的黑颈鹤越冬地

1988年12月,云南省昭通市大山包乡新发现一处黑颈鹤越冬地.目前已知云南省东北部地区是我国黑颈鹤主要越冬地,越冬黑颈鹤总数量500～700只,而大山包一处就有400只左右.1989年10月和1990年2月,笔者随考察组到大山包实地调查,现将该地区黑颈鹤越冬情况报道如下.栖息环境大山包乡位于昭通市正西方向约80公里,(东经103°18′-103°22′,北纬27°23′-27°29′),黑颈鹤主要栖息在海拔2800米～3100米的三个地点     

东海大管鞭虾的数量分布和生物学特性

根据4个季度月的专业拖虾调查和周年监测调查资料,对大管鞭虾的数量分布和生物学特征进行了研究.结果表明,调查区大管鞭虾年平均渔获率为492.4 g/h,以夏季最高(984.4 g/h),冬季最低(57.9 g/h).主要分布在60～100 m的东海高盐水域,60 m以浅海域少有分布.夏季高密度分布中心在30°00'～31°00'N,125°00'～127°00'E.繁殖期7～11月,盛期9～10月,8月份开始出现补充群体,翌年春季生长加速,6～10月为盛渔期.为合理利用该资源,建议春季加强对小虾的保护,以增加补充群体的资源数量,提高其经济效益.     

143团棉蚜发生特点及消长因素浅析

<正>143团地处天山北麓、准葛尔盆地南缘沙湾县境内,位于东经85°10′～85°54′,北纬44°10′～44°20′,属中温带大陆性干旱气候,春秋短而冬夏长,四季分明,≧10℃积温为3518.9℃。无霜期年际变化大,一般在135～191天之     

江汉湖区土地资源遥感调查与动态监测

运用RS/GIS技术,根据有关统计资料及遥感资料对江汉平原湖区的范围和土地资源进行了分析.考虑湖区发育背景、资源环境结构和社会经济功能等方面的因素,将江汉平原湖区界定为湖北省境内以江汉平原为依托的、海拔50m等高线以内的所有地区.其范围在111°36′38.76″～116°7′52.14″E、29°25′59.25″～31°27′14.45″N之间,按自然界线计算面积为4.664万km2,按行政区统计面积为6.475万km2.通过遥感图像的判读分析、实地抽样并结合相关资料,得出了1995年及2000年江汉湖区土地资源及其利用的调查分析结果,揭示了土地资源及其利用的变化规律.     

南海热带气旋影响红河州的诊断分析及预报

对1960～1990年5～10月移进或生成于120°E以西15～23°N海面上的南海热带气旋进行统计分析,得到了它们的季节活动规律及对红河州影响的移动路径.探讨了热带气旋与西太平洋副热带高压,以及其它天气系统配合对红河州的影响过程,并从影响程度的大小进行区域划分,给出了热带气旋进入第一影响区和第二影响区后未来48?h内的降水概率,从而建立起路径预报判别指标与未来24?h的路径预报方程.     

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     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with