乐都县湟水两岸盐碱地成因及治理对策

通过对乐都县境内湟水土地盐碱化的成因分析,提出了今后治理思路与对策。     

小城镇绿地系统规划的地域性特色塑造探讨——以丰宁满族自治县为例

丰宁满族自治县绿地系统规划,以自然地理空间格局为导句,精心挖掘丰宁的地域性文化特色．从县域绿地系统、县城区绿地系统和中心城区绿地系统三个层面进行规划设计,强化丰宁的文化内涵和空间特征．使丰宁的风貌更具有地域性特色。     

祁东农产品的包装设计研究分析

随着“乡村振兴”政策的实施与开展,政府大力扶持农村特色农产品的发展,为祁东经济的发展提供了物质保障。该县农产品资源丰富,包括黄花菜、酥脆枣、槟榔芋、土豆粉等,其中,黄花菜尤为著名。文章主要研究了祁东农产品包装的现状以及存在的问题,并提出改良建议。目前祁东农产品包装现状主要存在包装形式单一、包装图案缺乏设计感、品牌竞争优势不足的问题,建议品牌包装升级换代,形成自己的品牌竞争优势,重视农产品包装的质量,包装形式多样化,增强包装内容设计感,包装材料多样化。     

鲲鹏展翅飞移民伟业兴——丰都县行政办公区的设计创意和问题思考

结合重庆市丰都县特有的山地地形地势及深邃的文化内涵,设计师作出了顺应自然的总体设计构思及场地景观设计。本文对丰都县行政办公区的工程设计构思作法提出了回顾和问题思考。     

Determination of the country of origin of pistachio nuts by DSC and HPLC

The laboratories of the U.S. Customs Service frequently encounter the major analytical problem of determining the country of origin of imported commodities. This is particularly challenging with natural products. This paper will describe the process for one such commodity —pistachio nuts. Two approaches were taken, high performance liquid chromatography (HPLC) and Differential Scanning Calorimetry (DSC). It was found that the results of these two techniques were complimentary and confirmatory. The HPLC data was obtained on the petroleum ether soluble fraction of the pistachio nuts while the DSC runs evaluated both this fraction and the whole nut. The HPLC results were further investigated by collecting fractions from the eluting peaks, derivatizing them to form the methyl ester of the fatty acids, and profiling by gas chromatography to confirm the triglycerides originally present. The U.S. Customs Service is currently using DSC area ratios to screen imported pistachio nuts for country of origin.     

Remote Sensing Extraction of Soil Salinity in Yellow River Delta Kenli County based on Feature Space

Soil salinization is an important challenge to achieve sustainable use of land resources. The appropriate method for remote sensing quantitative inversion in the coastal Yellow River Delta region of China can provide technical reference for regional salinization monitoring and prevention. Utilizing Landsat 8 OLI image and field measured data, we extracted key surface characteristic parameters, quantitatively discussed the law and relationship between soil salinity and surface biophysical parameters and established a soil salinity inversion model. The results show that the inversion precisions of Albedo-MSAVI, SI-Albedo and SI-NDVI feature space are 83.4%, 88.8% and 80.6% respectively. The analysis shows the SI-Albedo model is suitable for the inversion of salinization level in Binhai areas. For Albedo-MSAVI and SI-NDVI models, they have certain reference significance for salinization information extraction in inland arid and semi-arid areas. Based on the inversion of the SI-Albedo feature space with the highest accuracy, the level of salinization in Kenli County is generally high-low-high trends from the east to the west, which is consistent with the formation mechanism of salt accumulation in this area.     

建筑形式的六个决定因素——广西省桂林市兴安县秦人街规划及建筑方案设计

本文通过广西省桂林市兴安县秦人街设计构思,探讨了了保罗·鲁道夫提出的《建筑形式的六个决定因素》对建筑设计的指导作用。     

瀑布沟水电站水库主要淹没区——汉籃县淹没处理问题的初步讨论

本文通过对瀑布沟水库主要淹没区汉源县淹没损失以及土地后备资源的分析,提出了汉源县移民安置的初步意见和建议.     

基于配网拓扑矩阵的供电可靠性评估方法研究

为准确评估配网供电的可靠性、提升配网供电稳定性,提出基于配网拓扑矩阵的供电可靠性评估方法。选取4个指标用于可靠性评估。以某电源为初始点,确定其连接的主干线与分支线间的相关性,准确描述配网拓扑结构。通过配网架构分析、编号与矩阵列写3个环节,将配网拓扑架构分为3个分块矩阵,分别是主干线矩阵、分支线矩阵和联络矩阵。依照配网拓扑矩阵的划分原则,分析配网元件故障条件下对配网主干线上各负荷点的影响,确定故障率关联矩阵与故障时间关联矩阵。根据这2个关联矩阵确定负荷点平均故障时间向量,进而计算可靠性评估结果。试验结果显示,该方法能准确评估配网的供电可靠性,以便进行配网整改,从而提升配网供电的可靠性。     

广西田林县城区供水水源选择研究

田林县城区目前用水主要依靠启文水库,水源单一,供水能力不足。通过分析田林县城区周边水资源状况和开发利用条件,结合水源水量水质情况、城区发展规划、经济合理可行等因素,对不同水源工程方案进行综合比较,最终推荐以启文水库扩建后和那罕引水工程联合供水方案。