高校生态园林景观理想模式初探——南昌航空工业学院新校区迎宾大道景观设计

介绍了"南昌航空工业学院新校区迎宾大道"景观设计的指导思想、原则、总体布局及设计的景观效果.     

指人名词的修饰性量级

文章在陆俭明(1984)一文的基础上,通过抽象、概括,得出了六组指人名词的修饰性量级表和两条规则,简便地推出了指人名词两两组合的20种有效式、“名n”的有效式计算公式,最后依据句法功能的异同把四类六组指人名词重新进行了概括分类。     

Risk Pooling Advantages of Manufacturing Network Configuration

The decision of a firm to set up a plant network is influenced by a number of factors, including demand fluctuations across its portfolio of products, logistics costs, and service level requirements. Product plant networks offer the benefits of consolidated production and reduced transshipment costs; on the other hand, process plant networks allow intensive dedication to process expertise and economies of scale. In this paper, we show that, aside from these benefits, process plant networks offer significant risk pooling advantages under a wide range of conditions. We analytically demonstrate that, even without accounting for economies of scale advantages, firms may prefer the process plant network configuration due to the risk pooling benefits offered.     

Nuclear risk perception,political efficacy,and Internet use for civic engagement in China

Nuclear power was recently reintroduced into China’s economic agenda. However, concerns have arisen as to how communities close to the sites of newly planned nuclear power plants react to the potential environmental and health risks. In a field study conducted in the proximity of the Yunxiao Nuclear Power Plant in Fujian province, it was discovered that a majority of the respondents perceived the project as having a certain level of risk. Nevertheless, online social networks were rarely used to seek relevant information, discuss benefits and threats, deliver concerns to decision-makers, or even to mobilize collective actions. Further investigation revealed a strong connection between the political efficacy of the respondents and their level of Internet use for civic engagement. The mechanisms underlying the formation of political efficacy are examined by relating the discourses of risk to their social contexts.     

植物生理学三位一体教学模式改革探讨

围绕植物生理学理论教学、实践教学、考试等方面的改革进行了探讨,初步实现了课堂教学的科学化,实践教学的多元化,考试制度的弹性化,使植物生理学教学质量明显提高。     

植物组织培养开放式实验的教学改革与实践

为适应教学发展的需要，对植物组织培养实验进行了开放式教学改革．通过精心组织和管理，以多种形式开展实验，使教学质量和学生能力均有所提高；同时，也促进了教师业务水平的提升，并提高了实验室的利用效率．     

“程度副词＋名词”组合的语义、语用分析

“程度副词＋名词”组合作为目前流行的一种言语现象，已经引起了学者的广泛关注，从不同角度探讨其存在的合理性一直是大家致力解决的问题。从语义、语用两个方面阐明了该组合之所以能够存在的原因，另外还指出，社会、语言使用者等因素也会对该组合的出现有一定的影响。     

汉语体词性词组的语义类型、功能及其在对外汉语教学中的应用

名词和以名词为主的体词在汉语词汇总量中占的比重很大。基本体调性词组可分“名－名”、“形－名”、“动－名”,语义中心在后位名词居多,也有居前位的或多中心的,不论语义中心在哪边,都与语义关联有关,与表达者主体的目的和价值评判也有关系。这显然要比“语言参数原则”（Ｘ－ｂａｒ）的规定要复杂得多。词组不论何种语义结构,都可作功能评价,而功能的变化始终在语义结构内部。体词性词组内部包含的分析,离不开语义逻辑和概念事理逻辑,但要说明其内部包含在语义功能上的联系又是不必要的。文章还具体分析了方位词组、“数－量－名”词组、动名词词组、Ｄ１体词性词组的语义类型和功能,并尽可能指出它们在对外汉语教学中的作用。     

Spatial pattern analysis of the incidence of aster yellows disease in lettuce

The degree of aggregation of lettuce plants infected by aster yellows phytoplasma (AYP) was investigated in 12 fields from three experiments. Position of diseased and healthy plants was mapped in a 6–9×12-m section of each field; for most analyses, fields were divided into 10-plant quadrats. Mean disease incidence (p) ranged from 0.01 to 0.30. The frequency of diseased plants was described by the beta-binomial distribution, with an index of aggregation (θ) ranging from 0 to 0.17, positively correlated withp, and generally increasing over time within a field. Distance-class analysis revealed a core-cluster size of only a few plants. However, spatial autocorrelations ofp between quadrats were not significant, indicating that the scale of spatial pattern was small, generally less than 10 plants. An overall measure of aggregation was given by the slope parameter of the binary form of the power law, in which the log of the calculated variance is regressed on the log of the theoretical variance for a binomial distribution. The slope was 1.18 and significantly different from 1. Results for this “simple-interest” disease are interpreted in relation to the persistent transmission of AYP by its aster leafhopper vector.     

蒸腾作用可能还存在一个重要意义

蒸腾作用很可能是植物获取氧气的一个重要途径.植物的结构与这一获氧过程存在着适应性,尤其在低氧环境中,由于蒸腾作用产生的水分流动,使水中的氧不断地供应给植物,从而满足植物的要求.这一研究可为进一步认识植物进化途径、植物解剖学现象、植物生理生态学适应性及植物学应用等提供借鉴.