脱氧化浓度PH3气体熏蒸对库房杀虫效果的探讨

在脱氧条件下，与低浓度ＰＨ３气体熏相结合进行库房内杀虫试验，结果表明，该法操作简便、安全、经济，杀虫效果理想，且对纸质，字迹的无明显影响。     

杀虫微生物——无色杆菌的研究新进展

无色杆菌是一种昆虫病原线虫的共生细菌，已证实对多种害虫具毒杀活力，且其主要作用成分为该细菌分泌的“外毒素”．文章综述了无色杆菌的致病机理，及其杀虫毒素蛋白的研究新进展，并讨论了基因工程技术在无色杆菌中的应用潜力和发展前景．     

杀虫微生物的研究与应用

在我国，农业生产中杀虫剂的应用是最为普遍的，而由化学杀虫剂所引起的环境污染问题已引起社会的广泛关注，人们期盼着优质安全的绿色食品。因此，为了保障农业丰收不受虫害，亦要对食品、环境保障安全，就需要不断研究开发新一代的杀虫剂。其中，微生物杀虫剂是众所关注的领域，它在我国于２０ 世纪５０年代奠基，到了９０年代，随着国内外基因工程以及生物工程技术的发展，研究进展尤为迅速。特别是对杀虫基因资源的发掘、遗传工程技术及转基因工程菌研究、微生物农药产业化和应用的拓展，皆取得了重大的进展和突破。 一、杀虫微生物杀虫…     

N3^—杀虫效应的确定

本从Ｎ×－３的结构，电子组态，价键出发来说明它所具有的高度活泼性和生物学效庆，交用酶学试验和杀虫效果来证实；对Ｎ＾－３的杀虫机制，特点进行了探讨；对Ｎ＾－３的杀虫应用前景也作了估计。     

苏云金杆菌杀虫增效作用研究进展

苏云金杆菌是一种在自然界中广泛分布的好气芽孢杆菌，由于其对昆虫的特异性毒杀作用而广泛用于农业和卫生害虫的生物防治中。但由于野外应用防效不稳定、残效期短、杀虫速度慢、对某些目标害虫不敏感，影响其作为生物杀虫剂的应用。通过特异性高毒力菌株的筛选、菌株的遗传改良、剂型的改良、各种增效剂和增效因子采用等方法，以提高苏云金杆菌制剂的杀虫活性和野外应用防治效果。本文在讨论苏云金杆菌的杀虫毒素蛋白及其作用方式的基础上，介绍了不同增效方式及其杀虫活性的影响的研究进展。     

吉林省西部地区野生杀虫植物资源调查

报道了吉林省西部地区野生杀虫植物共计118种,分属43科.对杀虫植物资源进行评价,可为该资源开发利用提供科学依据.     

植物农药的探讨与研究

无公害农药的主体是植物农药，该农药易分解，残毒轻。重点介绍国内开发的几种植物、配方原则及杀虫原理。同时提出苦参碱提取的新工艺。     

陇东子午岭林区野生农药植物资源调查及开发利用

经过三年的调查研究,报道了子午岭野生杀虫维管植物42科68属88种。其中乔木8科9属10种;灌木8科8属11种;木质藤本3科3属3种;多年生草本20科34属39种;一、二年生草本10科16属21种;草质藤本3科3属4种。介绍了子午岭16种主要野生杀虫植物,并介绍了子午岭林区野生农药植物的其它用途,提出了开发利用和保护的具体建议。     

高温杀虫储粮法

介绍了日光暴晒和烘干两种高温杀虫储粮方法。     

放线菌F401菌株杀虫活性研究

从江苏茅山地区竹林土壤中分离筛选到一株具有杀虫活性的放线菌F401号菌株。在扫描电镜下,该菌株的孢子丝呈紧密和松敞的小螺旋形,孢子椭圆形及圆柱形,表面光滑。气生菌丝灰褐色,菌落薄绒状,基内菌丝无色,不产生可溶性色素。摇瓶发酵菌丝抽提物稀释后对桑蚕(Bombyxmori)、大叶黄杨尺蠖(Abraxasmiranda)、褐刺蛾(Setorapostornata)及松褐天牛(Monochamusalternatus)等昆虫进行测试,均具有较强的杀虫活性。试验研究表明,此菌株是一种具有杀虫活性的链霉菌(Streptomicessp.)。     

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。     

《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     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with