城市绿地系统景观资源评价与分析——以乌海市城市绿地系统为例

将层次分析法运用于城市绿地系统景观特色的选择过程,将感性的过程理性化、定量化。同时,借鉴风景资源评价的方法,对城市的潜在绿地特色资源进行整合、分类,并分层次地应用到各类绿地中。最终将这种方法实践于乌海市绿地系统规划中,探索一种更加准确、科学的规划方法,以期在感性与理性之间找到平衡点。     

Application of improved FAHP in schemes optimization about landslide treatment

Based on the landslide control scheme optimized by considering technical index and other factors,a landslide comprehensive control thought of “treating scheme optimization combined monitoring information feedback” is put forward.The multi level hierarchical comprehensive evaluation index on landslide control scheme is set up on the basis of analyzing many engineering examples,and formula of weight,fuzzy complementary judgment matrix and the consistency check method of judgment matrix of fuzzy analytical hierarchy process are given,the solution of multi objective decision problems based on improved fuzzy analytical hierarchy process is developed,too.Validity and reliability of this method is proved through the scheme selection for Xiangjiapo landslide control.It provides an effective method for construction decision makers.     

Improved AHP Assessment and Grey Relational Analysis Model for Optimizing Waterworks Sludge Treatment Process

The goal of AHP Grey Relational Analysis model is to solve problems during selecting the best waterworks sludge treatment process.And grey Relational Analysis is to confirm the compactness between the ideal process and candidate process.Moreover, weighting system was determined by the three mark matrix and consistency analysis of judgment matrix for traditional AHP was improved by the optimum transfer matrix.Base on these theories, AHP GRA model was established.A case study was addressed with the selection of waterworks sludge treatment process in Chongqing.It is found that this model is legitimate and credible.     

Optimal design of scroll compressor’s profiles with key parameters preference

Aiming at the problem around single optimal objective and solution selection without considering designer’s preference, optimal objective function combing maximum compression ratio and maximum coefficient of volume utilization is proposed in a liner weighting model based on defined variables. Furthermore, the main factors’ influence is evaluated by analytic hierarchy process (AHP) for its advantage of dealing with qualitative analysis data. The second selective preference is achieved by normalization and second liner weighting. The validity of the method is illustrated by a case study.     

超声辅助提取冷破碎苹果皮渣中多糖的工艺优化

采用正交试验设计方法从冷破碎苹果皮渣中提取多糖,研究了超声提取功率、提取温度、提取时间、料液比对多糖提取效果的影响,确定了冷破碎苹果皮渣多糖的最佳组合。结果表明,冷破碎苹果皮渣多糖最优提取条件为:提取时间为120min,料液比为1∶40,提取温度为70℃,超声功率为200W,在此条件下可得最大提取率9.53%。     

中药制剂“球灭”颗粒剂成型工艺研究

考察了不同＂球灭＂颗粒剂的制粒处方,筛选出干浸膏粉和可溶性淀粉的最佳组成为1∶1.5,黏合剂为75%酒精。所制颗粒的吸湿率小、成型率高、溶化率高。该结果可为＂球灭＂颗粒剂处方组成的确定及生产环境的控制提供实验依据。     

超声波-双水相协同提取海带多糖工艺的研究

[目的]优化超声波-双水相协同提取海带多糖的工艺。[方法]采用丙醇-硫酸铵双水相体系与超声耦合对海带多糖进行提取．苯酚-硫酸法测定多糖含量;采用单因素试验优化海带多糖的提取工艺。[结果]海带多糖提取的最佳工艺为：浸提时间为2h,超声提取时间为30min．提取温度为60℃,料液比为0．019,提取液pH值为5,在此条件下海带多糖的提取率为11．45％。[结论]试验建立了海带多糖提取的最佳工艺,为海带多糖的高效提取奠定了基础。     

微波提取伏毛铁棒锤总生物碱工艺的优化

[目的]优化微波提取伏毛铁棒锤(Aconitum flavum)中总生物碱的工艺,为伏毛铁棒锤生物碱的开发应用奠定基础。[方法]在单因素试验的基础上,通过正交试验优化伏毛铁棒锤生物碱的提取工艺。[结果]伏毛铁棒锤生物碱的最佳提取工艺为:提取时间为8min,料液比为1∶10,提取温度为40℃,提取溶剂的pH值为3.0。在最佳提取条件下,伏毛铁棒锤总生物碱提取率为0.59%。[结论]该试验得到伏毛铁棒锤生物碱的最佳提取工艺,为伏毛铁棒锤生物碱的开发应用奠定了基础。     

不同提取方式对葛根总黄酮抗氧化反应的影响

[目的]对葛根总黄酮不同提取方法进行对比分析,优化提取工艺。[方法]分别采用索式提取法、渗漉提取法和超声提取法对葛根中总黄酮进行提取,并采用紫外分光光度法测定总黄酮含量,进行葛根总黄酮超氧阴离子自由基清除率和对Fe2＋诱发的脂质过氧化反应清除率试验。[结果]不同提取方式提取葛根总黄酮的效率依次为：超声提取法〉渗漉提取法〉索式提取法;不同提取方式提取葛根总黄酮抗氧化性的效果依次为：超声提取法〉渗漉提取法〉索式提取法。[结论]超声提取法具有提取时间短,提取率高,提取温度低等优点,是中草药有效成分提取分离中的一种有效手段。     

运用气压过程分离法测定旱地苹果园土壤硝化-反硝化作用

本研究利用气压过程分离法测定了旱地苹果园土壤的硝化-反硝化作用,介绍了该方法的基本原理和测定方法,并研究其在苹果园中的应用条件.结果表明,土柱取样深度以0～21 cm为宜,此深度既考虑到肥料和根际效应也避免土柱发生紧实作用;土柱取样量以每个处理3个环刀,重复3次较好;苹果园土壤总硝化速率和反硝化速率年周期变化动态呈先升高后降低的趋势.