中医理论在园林景观中的应用类型探析

以中医学、生态学、景观美学和环境心理学为理论基础，研究了中医理论在园林景观中的应用类型及各应用类型之间的异同，总结了中医理论在园林景观中的应用方式，并分析了目前中医理论在园林景观中应用时存在的不足，以期为中医理论在园林景观中的应用提供理论依据。     

分形参数理论在动物CT影像处理中的研究

将分形参数理论和现代图像处理技术结合起来,对动物CT影像进行分析和处理,根据在动物骨骼的成像交界处,分形的规律性将会被破坏的基本特征,获取边界处的分形参数值H,从而判断出该处为CT图像的边界。从实验结果看,结合分形理论的分形参数算法对CT图像的处理效果优异,对家庭宠物犬和其它动物疾病的正确诊断和有效治疗提供必要的技术支撑。     

《农业与工业化》：农机化理论宝库 ——“发展经济学”创始人张培刚博士论文初识

"发展经济学"创始人张培刚1945年的博士论文《农业与工业化》,是近代农业机械化理论之集大成者。由于社会和历史的原因,这一农业机械化理论宝库一直未被认真开发、应用于我国农业机械化的实践,以致走了不少弯路。随着一代经济学大师的离世,如今,挖掘、开发这一理论宝库,用之培养新型农业机械化人才,指导我国农机化实践,必将结出丰硕之果。     

变采样周期和数据包随机丢失的NCS鲁棒H∞ SymboleB控制

在消费者对商品价格与供货时间的偏好假设下，建立一个厂商关于电子商务与传统商务交易方式选择的完全信息静态博弈模型，其纳什均衡表明了电子商务与传统商务潜在的发展趋势，特别是两者可能的市场剖分关系.确切而言，若市场满足既定假设，均衡条件下的电子商务交易方式表现为较长的供货时间及低于传统商务约40%的市场交易价格，将获得三分之一的市场份额.     

Relative Efficiency Evaluation on Water Resource Utilization

Water resource allocation was defined as an input-output question in this paper, and a preliminary input-output index system was set up. Then GEM （group eigenvalue method）-MAUE （multi-attribute utility theory） model was applied to evaluate relative efficiency of water resource allocation plans. This model determined weights of indicators by GEM, and assessed the allocation schemes by MAUE. Compared with DEA （Data Envelopment Analysis） or ANN （Artificial Neural Networks）, the mode was more applicable in some cases where decision-makers had preference for certain indicators     

某连续刚构桥的施工阶段结构分析

随着西部大开发的深入,贵州、广西等山岭地区的道路桥梁等交通建设进入了快速发展时期,而鉴于上述地区山高沟深的特点,高墩大跨连续刚构桥被广泛应用,本文结合工程实例对连续刚构桥的设计理论进行了探讨。     

Analysis and Countermeasures for Books Borrowing Service System：Taking the LibrmT of Shaanxi Railway Institute as an example

采用实地调查方法分析图书馆服务系统概况和服务包支撑奈件，绘制借还书服务系统蓝图分析该系统优缺点，运用管理运筹学中的排队方法解析问题原因，提出改善服务系统的对策，包括增设统一服务台，加强同信息用户联系等方法。     

Computational chemistry study of the environmentally important acid-catalyzed hydrolysis of atrazine and related 2-chloro-s-triazines

Many chlorine-containing pesticides, for example 2-chloro-s-triazines, are of great concern both environmentally and toxicologically. As a result, ascertaining or predicting the fate and transport of these compounds in soils and water is of current interest. Transformation pathways for 2-chloro-s-triazines in the environment include dealkylation, dechlorination (hydrolysis), and ring cleavage. This study explored the feasibility of using computational chemistry, specifically the hybrid density functional theory method, B3LYP, to predict hydrolysis trends of atrazine (2-chloro-N4-ethyl-N6-isopropyl-1,3,5-triazine-2,4-diamine) and related 2-chloro-s-triazines to the corresponding 2-hydroxy-s-triazines. Gas-phase energetics are described on the basis of calculations performed at the B3LYP/6-311++G(d,p)//B3LYP/6-31G* level of theory. Calculated free energies of hydrolysis (delta h G298) are nearly the same for simazine (2-chloro-N4,N6-diethyl-1,3,5-triazine-2,4-diamine), atrazine, and propazine (2-chloro-N4,N6-di-isopropyl-1,3,5-triazine-2,4-diamine), suggesting that hydrolysis is not significantly affected by the side-chain amine-nitrogen alkyl substituents. High-energy barriers also suggest that the reactions are not likely to be observed in the gas phase. Aqueous solvation effects were examined by means of self-consistent reaction field methods (SCRF). Molecular structures were optimized at the B3LYP/6-31G* level using the Onsager model, and solvation energies were calculated at the B3LYP/6-311++G(d,p) level using the isodensity surface polarizable continuum model (IPCM). Although the extent of solvent stabilization was greater for cationic species than neutral ones, the full extent of solvation is underestimated, especially for the transition state structures. As a consequence, the calculated hydrolysis barrier for protonated atrazine is exaggerated compared with the experimentally determined one. Overall, the hydrolysis reactions follow a concerted nucleophilic aromatic substitution (SNAr) pathway.     

建构主义学习理论与大学英语听说教学

大学英语的教学目标是培养学生的英语综合运用能力，特别是听说能力。针对目前大学英语听说课中存在的实际问题，文章将以建构主义学习理论为基础探讨如何改进大学英语听说教学。     

The Eco-field Hypothesis: Toward a Cognitive Landscape

Cognition is recognized as an essential component of the living strategies of organisms and the use of cognitive approaches based on an organismic-centered-view is discussed as a strategy to aid the advancement of landscape ecology to a more independent scientific discipline. The incorporation of the theory of information, the theory of meaning and the Umwelt, and the biosemiotic models into the landscape ecology framework is described as the necessary step to create a common paradigmatic background and operational tools to develop basis for a cognitive landscape ecology. Three cognitive landscapes (neutrality-based landscape, individual-based landscape and observer-based landscape) have been described as the result of distinctive mechanisms to extract information from a cognitive matrix based on a growing literature of (bio)semiotic exchange. The eco-field hypothesis is presented as a new possibility to describe landscape processes according to an organismic-centered-view. The eco-field is defined as a spatial configuration carrier of a specific meaning perceived when a specific living function is activated. A species-specific cognitive landscape is composed of all the spatial configurations involved for all the living functions for a particular organism. Eco-field hypothesis offers a detailed vision of (habitat) environmental requirements and creates a novel conceptual bridge between niche, habitat, Umwelt and the methodological approaches of spatial ecology. Finally the eco-field hypothesis promises a new testing ground for experimental investigations in landscape ecology and in related disciplines including environmental psychology, cognitive ethology, cultural ecology, landscape aesthetics, design and planning.