南京某工程地质条件及周边环境复杂,设计采用逆作法施工技术,本文针对地下连续墙体量大,钢筋笼质量大,吊装难度大,混凝土浇筑难度较大及混凝土绕流等问题,详细阐述了工程项目逆作法采用的地下连续墙施工工艺流程和操作要点.
Objective To assess the nutrition and health status of residents in Gaogang district of Taizhou.Methods The survey was conducted according to the handbook of Chinese National Nutrition and Health Survey in 2010 which included questionnaire,interview,physical examination,laboratory testing and dietary investigation.Results The meat and cereal consumption of local residents basically reached the requirement of Chinese dietary guideline,which were 318.6 and 75.5gram per person each day.However,the daily intake of milk and fruits were only 15.1 and 15.9 gram per person,which were obviously inadequate,while the consumption of oil and salt were both excessive(55.2 g and 10.9 g).45.9% of total energy came from grain product and 38.5% from lipid.The survey also found that the overall prevalence of anemia was 15.7 % with 10.7% of males and 19.3% of females(χ2 =14.18,P0.05);33.2% and 5.6% of population was overweight and obesity,respectively.The prevalence of hypertension was 31.7 % among residents aged 15 years and over with 38.7% of males and 25.9% of females(χ2 =18.62,P0.05).The incidence of diabetes,hypercholesteremia,hypertriglyceridemia,or low serum high density lipoprotein cholesterol were 10.8 %,13.1%,23.4 % and 7.4 % respectively among adults.Conclusions Eventhough the dietary structure of local residents has been improved,and it is still not very much reasonable.The average daily intake of basic nutrients per reference person was adequate,but some nutrients were still deficient.The increase of the incidence of nutrition-related noncommunicable diseases(NCD) is an important public health problem.
The Japanese cell production(JCP)is introduced,and is compared it mixed production.A long production line is divided into several short lines in JCP,which can not only satisfy various market demands,but also has a high productivity.And how to translate from one to another is studied.A problem about how the mixed production could be changed into the Japanese cell production(JCP)is discussed.First,the products were clustered,and each cluster of products was produced by a production cell.Then through comparing logistic cost with the cost of workstation copy,it could be determined which workstation needs to be copied.At last,the cost was calculated under the condition that the workstations were copied.
Reconfigurable workshop layout is defined as equipment layout which can be changed according to the change of the production task.Except usual layout problem,future reconfiguration should be taken into account.The general principles of reconfigurable workshop layout were summed up,and the general solution process was given.The concepts of reconfiguration cost and the degree of reconfiguration were defined.In order to minimize the logistics cost and maximize the degree of reconfiguration,a multi-objective decision-making model was built.
Based on the analysis of current kinds of sequence matrixes, Type 1 and Type 2, an expanded and refined sequence matrix was proposed. Then, based on the optimized expanded sequence matrix, an improved sequence matrix was brought forward, which could be easily written in a normalized form and whose calculation was simple and convenient. With operational rules of combined sequence matrixes defined, this expanded sequence matrixes can also be applied to the problems of mixed production lines. Finally, the improved matrix was successfully applied to an example of flowshop balancing problem, and it was implemented in the Excel environment in an automatic computing way.
In order to balance the time of each working procedure,sequence matrix was used to determine the existence of process conflict and find the location of it.Method about how to deal with process conflict was offered.The process time,cycle time and the time of workstation were defined.Based on the process of making production line balancing,the process of making mixed-production lines achieved.
The general principles of workshop layout were summed up.Sequence matrix was used to determine the existence of process conflict and find the location of it.Method about how to deal with process conflict was offered.The process time,cycle time and the time of workstation were defined.Based on the process of making production line balancing,the process of making mixed-production lines balance was achieved.According to the particularity of mixed production,Method about mixed production workshop was offered.
The layout problem of mixed production shops to minimize operation cost is considered in this paper.A sequential matrix method is presented by extending sequential matrix models and analyzing mixed production lines.Five task precedence relationships are discussed so as to obtain general task sequencing rules.
Based on the discussion on the ethics risk in S & T information management,this article analyzes the cause of the risk in S & T information management,and puts forward some pertinent countermeasures for the construction of S & T information.
The improved diagnostic of BP neural network algorithm and C gray cognate are presented in this paper. On the basis of extracting the characteristic parameters form tank engine vibration signals,and by combination of C gray cognate analysis which is easy to fulfill and the BP neural network diagnostic method which is accurate, the fault pattern recognition and diagnosis are fulfilled for the tank engine.