对卷烟企业、商业企业、科研单位共同建设烟叶基地的认识

系统介绍卷烟企业如何与商业企业(在科研单位的技术支撑下)共同办好烟叶基地一些基本原则和方法.介绍了基地建设过程中可能遇到的一些问题及解决方案.     

2-巯基嘧啶界面钝化改善钙钛矿太阳电池性能

该文研究2-巯基嘧啶（2-MP）对三元阳离子钙钛矿太阳电池光吸收层与空穴传输层的界面进行钝化,钝化改善薄膜及器件的光电性能。瞬态和稳态光致发光荧光光谱表征结果说明钝化后的钙钛矿薄膜非辐射复合被抑制。这均有利于抑制载流子复合和提升开路电压。钝化后薄膜疏水性增强,更好地阻挡水汽侵蚀,提升稳定性。光强依赖性测试结果表明2-MP有效地钝化缺陷。J-V测试表明钝化后器件光电性能明显改善,开路电压最高达1.133 V,效率最高达21.66%。并且优化器件的稳定性显著改善,在氮气中储存97 d后效率保持初始效率的90%。     

Negative statements considered useful

Knowledge bases (KBs) about notable entities and their properties are an important asset in applications such as search, question answering and dialog. All popular KBs capture virtually only positive statements, and abstain from taking any stance on statements not stored in the KB. This paper makes the case for explicitly stating salient statements that do not hold. Negative statements are useful to overcome limitations of question answering systems that are mainly geared for positive questions; they can also contribute to informative summaries of entities. Due to the abundance of such invalid statements, any effort to compile them needs to address ranking by saliency. We present a statistical inference method for compiling and ranking negative statements, based on expectations from positive statements of related entities in peer groups. Experimental results, with a variety of datasets, show that the method can effectively discover notable negative statements, and extrinsic studies underline their usefulness for entity summarization. Datasets and code are released as resources for further research.     

Synthesis and Characterization of Some Lanthanide（Ⅲ） Complexes with 4- [N-（2-methoxy benzylinine）formy1]-2, 3-dimethyl-1-phenyl-3-pyazolin-5-one

A series of seven novel lanthanide（Ⅲ ） nitrato complexes with 4-[ N-（2-methoxybenzylimine）formyl] 1-2, 3- dimethyl-1-phenyl-3-pyazolin-5-one （2mbfa）, were synthesized. These complexes were characterized by elemental analysis, molecular mass determination, conductance and magnetic moment measurements, IR, UV-visible, and ^13CNMR spectral studies, In these complexes, the Schiff base, 2mbfa, acts as neutral bidentate ligand by utilizing the carbonyl oxygen and azomethine nitrogen as donor sites. All the three nitrate ions are also coordinated unidentately with 7 coordination for the lanthanide（Ⅲ） ions with a tentative monocapped octahedral geometry for the complexes. All the seven lanthanide（Ⅲ） complexes have a general formula, [ Ln（2mbfa）：（NO3）3 ].     

毗邻基础设计施工技术探讨

相互毗邻的建筑物基础形式及埋深不同时 ,施工往往会遇到困难 ,如果处理不当 ,就会影响甚至破坏临近建筑物的地基。本文就工程实例进行分析、探讨 ,为毗邻基础设计及施工提供参照。     

东北老工业基地工业建筑改造策略

针对东北地区老工业基地工业建筑的现状,提出了改造策略:建立大型室内公共活动空间。并从优越性、功能应用、改造原则三个角度详细阐述了老工业基地工业建筑改造的发展策略。     

THE COMPUTATION OF WAVELET-GALERKIN APPROXIMATION ON A BOUNDED INTERVAL

This paper describes exact evaluations of various finite integrals whose integrands involve products of Daubechies' compactly supported wavelets and their derivatives and/or integrals. These finite integrals play an essential role in the wavelet-Galerkin approximation of differential or integral equations on a bounded interval.     

中国的十二大水电基地

中国的水能资源居世界首位，其中可开发装机容量为３．７８亿ｋＷ。为了有效、合理地开发利用这些资源，在原工业部主持下，经过数次规划，于１９８９年形成了现在的十二大水电基地。该基地发怒荀我国水能资源客观存在的反映，同时又体现了国家发展水电的战略决策，十二大水电基地就晚国水电未来发展的一张蓝图。应当依据这张蓝图。按照国家对电力资源的需求，分阶段，有目标、有重点地去发展水电。我们相信，经过若干年的不懈努力，     

Comparing a Pharmaceutical and an Agro-food Bioregion: On the Importance of Knowledge Bases for Socio-spatial Patterns of Innovation

The aim of this paper is to compare the socio-spatial patterns of innovation and knowledge linkages of a biopharmaceutical and an agro-food biotech cluster. Dissimilarities can be expected based on differences in terms of historical technological regimes and sectoral innovation system dynamics between the agro-food and pharmaceutical industries in general and particularly the distinctive analytical (science-based) knowledge base of biopharmaceuticals in contrast with the more synthetic (engineering-based) knowledge base of agro-food biotechnology. Drawing on bibliometric data and case material the study compares two representative bioregions: a biopharmaceutical cluster in Scania, Sweden and an agro-food biotech cluster in Saskatoon, Canada. The empirical study supports the theoretical expectations and shows that knowledge dynamics in the agro-food cluster are more localized than in the biopharmaceuticals cluster. It is important, however, to acknowledge that these differences are relative. Both sectors display local and non-local patterns of collaboration following the general pattern for biotechnology.     

用Groebner基方法求平面刚体导引综合问题的封闭形式的解

本文作者用Ｇｒｏｅｂｎｅｒ基法进行平面刚体导引综合问题的非线性代数系统的求解。在生成该系统的封闭形式的“三角化”的Ｇｒｏｅｂｎｅｒ基（标准基）的基础上，实现了对该问题的直接符号求解。以平面曲柄滑块机构的刚体导引综合为例说明了该方法的实效性。