Ecological Suitability Evaluation on Agricultural Land in Western Jilin Province Based on Fuzzy Mathematics

[Objective] This study was to evaluate the ecological suitability of agricultural land in western Jilin Province, with the aim to provide basis for the effective application of agricultural resources and the structural adjustment of land use. [Method] The evaluation index system was constructed based on fuzzy mathematic method according to the principles of systematic, dominant, effectiveness and feasibility; based on law of tolerance, reasonable evaluation criteria were determined according to the ecological amplitude of crops; based on GIS processing, the initial data completed the mathematical operation by using the VBA program in Excel. [Result] The area of agricultural land grade I was 5 512 km2, grade II of 25 985 km2, grade Ill of 7 907 km2, and area of land not suitable for agriculture was 6 312 km2. According to the evaluation results, the key areas for land use adjustment were Zhenlai County, Da＇an County, Tongyu County and western Changling County. The directions of land use adjustment included improving irrigation and drainage conditions, governing land salinization and conversion of cropland to forest and grassland. [Conclusion] This study provided basis for the effective application of agricultural resources and ecological environment construction in western Jilin Province.

Oil Tea Soup Formula Optimization Based on Orthogonal Test and Fuzzy Mathematics Sensory Evaluation

The aim of this study is to optimize the formula of oil soup, which was one of traditional food of Guangxi province, south China. Tea leaves, bone soup, beans and other minor ingredients in the formula of oil tea soup are selected as the research objects. The sensory evaluation factors such as flavor, taste, color, aroma were selected to optimize the formula of oil tea soup based on orthogonal test and fuzzy mathematics comprehensive evaluation. The results showed the most important factor that affected the quality of the oil tea soup was tea leaves content, followed by the proportion of bone soup, minor ingredient and beans content. The study indicated that the optimal recipe ofoil tea soup was as follow： 0.6% tea, 0.4% beans, and 0.5% other ingredients. The ratio of material to solution of bone soup was 1：5.

Evaluation on Ecological Risks of Soil Heavy Metals in a Certain Area of Sichuan by Improved Fuzzy Mathematics Method

Taking a certain area in Sichuan Province as the object of this study, this paper adopts fuzzy mathematics method to make an evaluation on ecological risks of heavy metal in soil of this area. On calculation of factors’ weights, the traditional method of giving weight according to pollutants’ concentrations fails to consider the toxicity of heavy metals, and can’t reflect their actual ecological effect. With reference to the toxicity coefficient in potential ecological risk index evaluation, this article revises the traditional fuzzy mathematics evaluation model and puts forward a new method to calculate factors’ weight by incorporating toxicity levels in weight setting. The results of this study indicate: surface soil of this area was good in general, with 91.2% samples belonging to the first level, 7.77% samples belonging to the second level, and only 1.03% belonging to the third level. Compared with the results of the evaluation method of the reality content of soil, soil quality is better than the results of the quantitative evaluation, and is closer to the actual local conditions.

Application of Fuzzy Mathematics to the Evaluation of Drinking Water Quality in Wuhan

The quality of raw water from major water plants in Wuhan was evaluated by using Fuzzy synthetic evaluation model.It is suggested to select the alternative synthetic evaluation model when the first Fuzzy synthetic model failed in order to increase accuracy.

FUZZY MATHEMATICAL EVALUATION FOR MASONRY STRUCTURE BUILDINGS' DAMAGE GRADE CAUSED BY COAL MINING

Coal mining under buildings certainly causes surface movement and deformation, therefore, it brings about deformation even fracture for buildings. It is an important task to evaluate correcly the buildings’ damage grabe caused by coal mining. Fuzzy comprehensive evaluation,considering some factors of buildings’ fracture, has been applied to analyze the masonry structure buildings’ damage grade affer coal mining in this paper. It provides a scientific basis for buildings’reidercement before mining and maintenance or compensation after mining.

Evaluation model of the grey fuzzy on eco-environment vulnerability

The basic theory and evaluation index system of eco-environment vulnerability were reviewed. Based on the grey theory and fuzzy mathematics, a new comprehensive evaluation method from qualitative to quantitative, called grey-fuzzy evaluation, was proposed for evaluating eco-environment vulnerability. It was integrated of Association for Healthcare Philanthropy （AHP）, grey correlation analysis, grey statistics and fuzzy judgment. The constitutional principle and method of the new evaluation method were given and its feasibility and effectiveness were proved by the practical example.

Fuzzy Comprehensive Evaluation of Oil Field Waterflooding Effect

Oil field waterflooding is a complex man-controlled systematic behavior, and the related evaluation methods vary greatly. This paper put forward a fuzzy comprehensive method of evaluating controlled development level by analysis of the macroscopic evaluation to oil field waterflooding effect with combination of original reservoir geological state. This fuzzy evaluation technique bears unique advantages because there is little difference among evaluation indexes which represent the dynamic and static state of regional neighborhood of development units (blocks, Production Company, etc.). Not only the mathematical method for evaluating oil field waterflooding effect is set up, but also the method is applied in three blocks of D oil field. The calculated results show the effectiveness and practicability of the method.

The Level 2 Fuzzy Comprehensive Evaluation Model's Application in 5S

Some method on the evaluation of management’s effect should be applied to 5S of manufacturing enterprises’ workshops.To improve traditional methods that are applied to evaluation of management’s effect of those enterprises,the paper applied the level 2 fuzzy comprehensive evaluation model to the new method and detailedly demonstrated the new method that based on the level 2 fuzzy comprehensive evaluation model with a practical example.In a period of production,managers can easily grasp the macroscopic effect of 5S with the new method,and then make some corresponding measures according to certain actual condition.

基于FUZZY-AHP-TOPSIS的高速公路穿越垃圾场处治方案优选

为解决兰州南绕城项目垃圾场处治的技术难题,基于模糊数学、层次分析法和逼近理想解排序法的基础上,建立了综合评判指标体系模型,对翻挖填筑、桥梁、孔内强夯和预应力管桩4种拟选方案进行方案决策。以经济、技术、可靠度为评判指标,通过层次分析法确定其权重向量,利用逼近理想解排序法对结果进行优先级排序,最终确定拟选方案的综合优越度。结果表明:4种拟选处治方案的优越度分别为0.785、1.536、1.327、2.560,即第四种处治方案(高强预应力管桩方案)最优,为垃圾场处治方案的优选及类似工程的建设者提供科学依据。

Application of fuzzy comprehensive evaluation method to assess effect of conformance control treatments on water-injection wells

As an effective method to prolong the life of mature field,conformance control in water-injection well has been used wildly.Naturally,effect evaluation of conformance control has attracted great attention because it is an important guideline for the design of later enhanced oil recovery(EOR)plan.Usually,production responses such as excessive water reduction and oil production increment are widely used as the indicators.However,production responses may be unreliable due to the difficulty in determining an effective injection well which is caused by a large number of treated water-injection wells in a well group.Therefore,with the application of fuzzy comprehension evaluation(FCE),five evaluation indexes(injection pressure,injectivity index,slope of hall curve,variation coefficient and homogenization coefficient of injection profile)describe injection responses were selected to establish a new evaluation method in this paper.Based on fuzzy mathematics,FCE reflects the difference of evaluation units.Meanwhile,weights of evaluation indexes were obtained by analytic hierarchy process(AHP),which made the results more convincing.Taking Bai 239 oilfield as an example,the five injection responses indexes were used to assess treatment effect on five water-injection wells by single index evaluation and FCE.The results showed that among the five evaluation indexes mentioned above,the slope of hall curve was the most important factor affected evaluation result.In single index evaluation,opposite results may be produced easily on account of the one-sidedness of single index or human error.Furthermore,we found that effective treatment was a relative concept actually.The result of FCE was consistent with single index evaluation but FCE was more acceptable.This study suggests that FCE could be applied to another field such as water flooding,acidizing and hydraulic fracturing.

Research on Uncertainties in Evaluation Indicator System for Ecological Residential Community

In the process of evaluating,the weights of indicators are firstly determined by AHP and Delphi methods;and the values of indicators are normalized by grey correlative coefficient method.A suit of means were put forward,by which a qualitative and quantitative evaluation indicator system suitable for the situation of China and uncertainties can be established.Both idiographic and operable methods and process were presented.Following the principle of elasticity,hiberarchy and maneuverability,a three-layer evaluation indicator system was established by AHP in Jiuyi ecological residential community,which includes 5 subsystems and 24 indicatiors.The weights of indicators are measured by AHP and expert estimate and their best indicators values up to par were determined by fuzzy mathematics and optimization.The whole evaluation indicator system not only has an active and practical effect on estimating ecological residential community,but also guides ecological residential community planning.

Study on the Reliability Evaluation of Qualitative Indices in Multi-Objective Decision

Qualitative indices in multi-objective decision can usually be evaluated and measured by mathematical methods or models, but the obtained results are sometimes inaccurate because of fuzziness of indices. To improve the accuracy and reliability of the evaluation results, set-value statistic principle is applied, and accordingly four evaluation methods are obtained. Meanwhile, these methods are compared briefly.

基于AHP-FUZZY模型的急倾斜中厚矿体采矿方法优选

采用层次分析法和模糊数学对其采矿方法进行优选,选择适合该矿的最佳采矿方法.首先通过查阅资料初步选出适合该矿体的采矿方法;其次运用层次分析法构造了采矿方法的影响因素指标的层次分析模型,确定了各指标的权值,最后根据模糊数学理论进行综合评判确定最佳采矿方法为向上水平分层充填法.该方法投入生产后,矿石损失贫化大大减小,可实现矿石价值84亿,节约42万元,取得良好的经济效益.

基于模糊数学的木姜叶柯玫瑰茄本草饮料制备

木姜叶柯与玫瑰茄的味觉特性限制了两种原料在食品工业中的广泛使用.为拓展木姜叶柯和玫瑰茄的应用,以木姜叶柯和玫瑰茄为主要原料,采用浸提法制备木姜叶柯及玫瑰茄浸提液,通过对饮料气味、色泽、组织状态和滋味进行权重分析,建立了木姜叶柯玫瑰茄本草饮料模糊数学感官评价方法;利用单因素试验和正交试验结合模糊数学感官评价法,确定了木姜叶柯玫瑰茄本草饮料的最佳配方,并对最佳产品的质量指标(可溶性固形物含量、总酸及总多酚质量浓度、澄清度)进行了测定.结果表明:木姜叶柯玫瑰茄本草饮料的最佳配方为木姜叶柯浸提液添加量3%,玫瑰茄浸提液添加量4%,柠檬酸添加量0.03%,复配甜味剂(甜度200)添加量0.03%.通过该配方制得的饮料质地均匀透亮、颜色呈玫红色、酸甜适宜,具有木姜叶柯和玫瑰茄特有的香味,其理化指标测定结果为:可溶性固形物含量0.16%±0.01%,总多酚质量浓度107.42±1.90 mg/L,总酸质量浓度0.30±0.01 g/L,澄清度73.62%±1.35%.

模糊数学综合评价结合响应面法优化竹笋汁饮品发酵工艺

该研究以清水竹笋罐头生产过程中产生的清水为原料,以发酵乳杆菌(Lactobacillus fermentium)与红茶菌为菌种复合发酵制备竹笋汁饮品。利用单因素试验、模糊数学综合评价结合响应面法对其发酵工艺进行优化,并对其理化指标、微生物指标及抗氧化性进行检测分析。结果表明,竹笋汁饮品的最佳发酵工艺为:红茶菌添加量6%、发酵温度25℃、发酵时间2.5 d。在此优化条件下,竹笋汁饮品的色泽均匀,呈浅黄色的基底液,其感官评分为85.24分,固形物含量为6.13 g/L,pH为3.38,总糖含量为0.16 g/L,总酸含量为41.33 g/L,总酚含量为7.74 mg/L,总黄酮含量为0.066 mg/m L;益生菌活菌数为3.5×107CFU/g,大肠菌群、沙门氏菌及霉菌未检出,说明其理化指标及微生物指标均符合T/CASME 435—2023《益生菌发酵植物饮料》。竹笋汁饮品对1,1-二苯基-2-苦基肼(DPPH)自由基清除率为64.03%,羟自由基(·OH)清除率为46.62%,说明其具有一定的抗氧化能力。

基于模糊数学感官评价法优化牛肉风味植物肉配方

以大豆拉丝蛋白为主要原料,谷朊粉、豌豆蛋白、食用油、魔芋胶、TG酶为辅料研制一种中式麻辣牛肉风味植物肉休闲食品。先采用单因素试验探究谷朊粉、食用油、魔芋胶、TG酶添加量对植物肉感官品质的影响,再选取影响较大的3个因素进行响应面优化试验,通过模糊数学感官评价法进行分析。结果表明,以大豆拉丝蛋白湿基为基准,谷朊粉添加量4.21%、魔芋胶添加量0.63%、TG酶添加量0.56%、食用油3.00%时制品的感官品质最好。

基于模糊数学感官评价法优化微波复热型发芽糙米饭的工艺研究

以微波预熟化发芽糙米为原料,采用模糊数学感官评价结合复水率为指标,研究料液比、β-环糊精添加量、复热时间对其品质的影响,并对微波复热方便发芽糙米饭的营养成分、卫生指标及贮藏稳定性进行分析。结果表明,最佳微波复热方便发芽糙米饭配方:添水量为料液比1∶5(m/v),β-环糊精添加量0.6%,复热时间10 min。相比于未处理的原粮糙米,微波复热方便发芽糙米饭中γ-氨基丁酸含量增加了13.78%、黄酮含量增加了19.20%。微波复热方便发芽糙米饭最佳贮藏时间为0~120天,在贮藏120天后新鲜度指示剂由浅绿色变为浅黄色,新鲜度下降。本研究可为微波复热方便发芽糙米饭工艺研究提供一定的理论基础,为后续微波复热方便发芽糙米饭的研发提供一种新思路。

模糊数学结合响应面法优化酸浆多糖酸奶工艺

以酸浆多糖、纯牛奶为主要原料,加入发酵菌粉进行发酵,研制一款具有独特酸浆香气且营养丰富的酸奶。以感官评分为指标,在单因素试验基础上采用模糊数学评价法与响应面法相结合的方法,优选出酸奶生产工艺。结果表明,当酸浆多糖添加量为2.2%,木糖醇添加量为4.9%,菌粉添加量为0.15%,发酵时间为8 h时,参照此条件制作的酸浆多糖酸奶组织均匀,润滑细腻且香气浓郁,感官评分为87.17分,与预测值相近。

基于模糊数学感官评价法优化营养复配预熟糙米粉配方工艺

该研究以微波冻干处理后的发芽糙米粉为原料,以吸水指数和水溶指数结合模糊数学感官评分为指标,研究黑豆粉、抗性糊精和赤藓糖醇的添加量对营养复配预熟化发芽糙米粉品质的影响,并对复配发芽糙米粉的营养特性、卫生指标和贮藏稳定性进行分析。研究结果表明,营养复配发芽糙米粉的最优配方为黑豆粉添加量20%、抗性糊精添加量8%、赤藓糖醇添加量4%。复配糙米粉营养价值提高,卫生指标符合国家标准,在贮藏120 d后新鲜度变差但仍高于原粮糙米。