淮河流域高质量发展中生态环保的法治完善

淮河流域的自然禀赋、治理历史以及生态保护与社会经济发展的内在需求，证明了法治建设的必要性与紧迫性，淮河流域高质量发展最终依赖于法律的指引、规范与保障。然而淮河流域生态环保法治中存在的立法滞后、执法不力、司法薄弱等问题成为制约淮河流域高质量发展的障碍。为此，有必要从立法、执法、司法与守法等路径完善淮河流域生态环保法治，构建以淮河流域专门立法为核心的法治体系，完善执法体制以落实严格执法，加强生态环保司法保护力度，以公众参与制为基础促进全民守法，最终落脚于经济发展与改善民生，共建幸福淮河。     

吉林延边苹果梨主产区土地质量地球化学评价

[目的]明确土壤中地球化学元素对土地质量的影响,为土地利用服务。[方法]通过实地调查,在延边苹果梨主产区采集120个样品、测试分析了16种元素和理化性质的相应指标,从土地肥力、土地环境两个方面对研究区进行土地质量地球化学评价。[结果]延边苹果梨主要种植区的土地肥力质量属于二等适中水平,其中龙井肥力质量最高、珲春最差;四个区域土地环境质量均处于优等状态,仅在三合、图们个别样点存在Ni、As元素超标现象,总体看来不存在土地重金属污染。[结论]延边地区综合土地质量为优良水平,对苹果梨种植很适宜。     

Study on Application of Interrelated Controlling Method for Thermal Environment and Energy Saving in Buildings--Application in Determining the Control Indexes for Heat Insulation and Energy Saving of Enclosure in Bu ildings

In this paper according to the relationships between indoor-outdoor climate parameters, indoor thermal environment parameter and heat insulation parameters of enclosure, the control condition of indoor thermal environment and the control parameters of heat insulation-energy saving are advanced. Prescribing a quality limit for the parameters, the control indexes for the heat insulation energy saving of the enclosure are given.     

泛在知识环境下图书馆特色资源建设

在介绍泛在知识环境的概念及图书馆泛在服务特点的基础上,详细阐述了泛在知识环境下图书馆特色资源建设的意义,并从机构知识库建设、图书馆联盟、拓宽服务平台三个途径构建图书馆特色资源服务体系。     

林业投资环境的改善与政府职能的转换

从分析我国林业投资环境的现状入手,指出改善林业投资环境的最佳途径是转变政府职能,在此基础上,提出了政府职能的转变取向。     

基于时空信息比较的温室环境传感器故障识别

为了提高温室环境测控系统中传感器数据的准确性,针对温室环境参数变化的时间相关性和空间相似性特点,提出了一种基于主成分分析(Principal component analysis,PCA)的故障检测与基于时空信息比较的温室环境监测系统的传感器故障识别方法。首先利用基于PCA的传感器故障检测方法,通过监控统计量T2和SPE的变化实现传感器系统故障检测;再针对检测出故障的传感器节点,对该时刻传感器节点采用基于时空特性的节点信息比较实现不同传感器的故障识别。分别对比基于时间尺度、空间尺度、时空尺度的节点信息比较方法对传感器故障识别的影响进行了分析与试验验证,验证结果表明:基于PCA的传感器故障检测方法能够有效地实现对传感器系统故障的初步检测,提出的基于时空信息比较的传感器故障识别方法,融合考虑时间尺度和空间尺度的节点信息,能够有效地实现传感器具体故障定位;所建立的传感器故障识别方法检测正确率CDR为98.37%、平均虚警率FAR为1.72%,较传统的传感器故障识别方法检测正确率CDR提高了22.067个百分点,而平均虚警率FAR则降低了15.762个百分点,能够有效地保证故障诊断效率、提高故障诊断精度、降低虚警率,具有可靠性和准确性。     

网络环境下高校图书馆员继续教育的思考

探讨了网络环境下我国高校图书馆员继续教育的必要性,分析了目前我国高校图书馆员继续教育存在的问题,提出了网络环境下高校图书馆员继续教育的培养途径。     

Protein to carbohydrate ratio in high-energy diets for Atlantic salmon (Salmo salar L.)

The effect of dietary protein to carbohydrate ratios (P/CH, weight percentage) of P34/CH21, P39/CH15 and P44/CH10 was studied in Atlantic salmon (Salmo salar L.) with respect to growth and feed conversion ratio (FCR) in one medium-scale experiment (Experiment 1) and to slaughter quality in two production scale experiments (Experiments 2A and 2B). The dietary fat was maintained at 290 g kg⁻¹ whereas the protein (fish meal) was exchanged with carbohydrate (wheat). Fish grown from approximately 1 to 4 kg were fed a restricted diet (iso-energetic on gross energy basis) or to satiation. Nitrogen, fat, starch and energy digestibilities were measured in a separate experiment. There were slight tendencies for lower growth (P = 0.06) and for higher FCRs (P = 0.06) in Experiment 1, and a slight tendency for a lower dress-out percentage in Experiments 2A and 2B (P = 0.10 and 0.20 respectively) with decreasing P/CH. The P/CH had no effect on the fat concentration of fillets, flesh colour or sexual maturation. The digestibility of starch decreased from 62.1% to 46.1% and the digestibility of energy from 84.9% to 79.5% when P/CH decreased from P44/CH10 to P34/CH21. Growth per unit digestible protein increased with decreasing P/CH. Feeding to satiation improved the growth but the FCR was higher than it was for restricted feeding. The calculated starch load per kg of fish growth increased with decreasing P/CH, whereas the effluent nitrogen decreased.     

农林环境机器视觉导航路径生成算法及应

提出两种自然环境中的路径导航线生成算法:对于矮小作物规则分布的农田场景,在标准Hough变换的基础上,预先检测共线点峰值的限定偏角阈值,以迅速检测关键信息;对于林地环境及类林地环境的高大作物农田场景,寻找树干与地面的交点,形成机器人行走的左右边界,再求两边交点的中值产生一列点簇.对该列点簇进行Hough变换检测直线作为导航线,或应用最小二乘法拟合左右边界,求其中线作为路径导航线.Matlab对比仿真表明,几种算法对各自适用的场景具有可靠稳定的路径辨识能力,可对图像进行有效的批量处理.