Geometrical Simulation of Multiscale Toleranced Surface With Consideration of the Tolerancing Principle

2015 ◽  
Vol 15 (2) ◽  
Author(s):  
Cao Yanlong ◽  
Li Bo ◽  
Ye Xuefeng ◽  
Guan Jiayan ◽  
Yang Jiangxin
Keyword(s):  
Life Cycle ◽  
Surface Quality ◽  
Computing Time ◽  
Geometrical Model ◽  
Modeling Methods ◽  
Surface Deviations ◽  
Geometrical Simulation ◽  
The Relationship ◽  
Different Levels

Surface quality and accuracy are the most important factors that affect the performance and life cycle of products. Surface deviations are confirmed to be nonstationary random signals. They show characteristics of randomness, irregularity and multiscale. For precise components, those deviations, i.e., the location/orientation deviations, form deviations, waviness and roughness are constrained by different scales of tolerances. In addition, tolerancing principles are specified to deal with the relationship between geometrical and dimensional deviations of the workpiece. Conventional modeling methods are unable to express surfaces with those features. This paper proposed a new method for geometrical modeling of multiscale toleranced workpiece with consideration of tolerancing principles. The workpiece deviations are decomposed into different scale of deviations. Each scale of deviations is expressed as the products of the normalized deviations and deviation factors. To balance the conflict between computing time and accuracy, a multilevel displaying method is developed. Those deviations are presented at different levels. In the simulation, each scale of tolerances and the tolerancing principles are integrated into the geometrical model of the workpiece. At the end of this paper, a case study was carried out to validate the proposed method.

scholarly journals The Influencing Factors of a Polycentric Employment System on Jobs-Housing Matching—A Case Study of Hangzhou, China

2019 ◽  
Vol 11 (20) ◽  
pp. 5752
Author(s):  
Juan Zhu ◽  
Xinyi Niu ◽  
Cheng Shi
Keyword(s):  
Influencing Factors ◽  
Threshold Value ◽  
Stepwise Multiple Regression ◽  
Employment System ◽  
Employment Density ◽  
Industrial Diversity ◽  
Employment Centers ◽  
The Relationship ◽  
Different Levels

This paper discusses the relationship between the polycentric spatial structure and jobs-housing matching and its influencing factors in the urbanized area of Hangzhou City in China. First, 42 employment centers are identified while using the method of the threshold value of employment density and employment to residence ratio based on the places of employment and residence that were identified from cellphone signaling data. This study found that Hangzhou have remarkable features of a polycentric system. Second, we use the jobs-housing matching rate index to measure the jobs-housing matching characteristics of employment centers. We found that the polycentric structure does not guarantee jobs-housing matching of all centers, although nearly half of the employment centers had good jobs-housing matching and 14.29% do not achieve jobs-housing matching, which indicates the uncertainty of “co-location hypothesis” in China. Employment centers of different levels, industry types, and locations also display certain regularity in their jobs-housing matching level. Third, by using correlation analysis and stepwise multiple regression analysis, we found that, besides the polycentric factor, the spatial and industrial factors also exert a certain effect on jobs-housing matching, reasonable control of the employment center size, employment to resident ratio, and industrial diversity are the determinants that affect the jobs-housing matching level.

scholarly journals Using conceptual modeling to improve genome data management

2020 ◽  
Author(s):  
Óscar Pastor ◽  
Ana Palacio León ◽  
José Fabián Román Reyes ◽  
Alberto Simón García ◽  
Juan Carlos Rodenas Casamayor
Keyword(s):  
Information Overload ◽  
Conceptual Modeling ◽  
Sequencing Technology ◽  
Risk Genes ◽  
Genome Data ◽  
Wrong Diagnosis ◽  
The Impact ◽  
The Relationship ◽  
Different Levels

Abstract With advances in genomic sequencing technology, a large amount of data is publicly available for the research community to extract meaningful and reliable associations among risk genes and the mechanisms of disease. However, this exponential growth of data is spread in over thousand heterogeneous repositories, represented in multiple formats and with different levels of quality what hinders the differentiation of clinically valid relationships from those that are less well-sustained and that could lead to wrong diagnosis. This paper presents how conceptual models can play a key role to efficiently manage genomic data. These data must be accessible, informative and reliable enough to extract valuable knowledge in the context of the identification of evidence supporting the relationship between DNA variants and disease. The approach presented in this paper provides a solution that help researchers to organize, store and process information focusing only on the data that are relevant and minimizing the impact that the information overload has in clinical and research contexts. A case-study (epilepsy) is also presented, to demonstrate its application in a real context.

scholarly journals Consumer Confusion and Green Consumption Intentions from the Perspective of Food-Related Lifestyles on Organic Infant Milk Formulas

2021 ◽  
Vol 13 (4) ◽  
pp. 1606
Author(s):  
Shao-Ping Yang ◽  
Shu-Chun Chang ◽  
Ta-Ching Liang ◽  
Rospita Odorlina P. Situmorang ◽  
Minhas Hussain
Keyword(s):  
Online Survey ◽  
Rapid Development ◽  
Food Product ◽  
Milk Formula ◽  
Green Consumption ◽  
Consumer Confusion ◽  
Consumption Intentions ◽  
The Relationship ◽  
Different Levels

A sustainable lifestyle and green consumption are becoming popular nowadays due to increased awareness of environmental issues and many incidents regarding food safety. This has triggered the rapid development of the marketing of green products and the promotion of many green brands which causes confusion among consumers. This paper’s purpose is to evaluate the relationship between this consumer confusion and different Food-Related Lifestyles (FRLs) tending towards green consumption, taking as a case study organic infant milk formula. This study was based on an online survey which was conducted with 381 Taiwanese parents and carried out from January to February 2019. Through cluster analysis, this study categorized the different FRLs into three groups, i.e., consumers unfamiliar with food product quality, consumers who value food quality, and consumers who value food practicality. This study found that there is no significant correlation between different levels of consumer confusion and different FRLs. Furthermore, different consumers’ FRLs have significant correlations with green consumption intention. This study also found a positive relationship between consumer confusion and green consumption intention.

scholarly journals Cooperation and the relationship between education and healthcare institutions: the nursing pró-saúde project

2014 ◽  
Vol 23 (1) ◽  
pp. 160-166 ◽  
Author(s):  
Selma Regina de Andrade ◽  
Astrid Eggert Boehs ◽  
Daiana de Mattia ◽  
Carlos Gabriel Eggert Boehs ◽  
Maria Francisca dos Santos Daussy
Keyword(s):  
Interorganizational Relationships ◽  
Study Approach ◽  
Documentary Sources ◽  
Analysis Technique ◽  
Nursing Training ◽  
The Relationship ◽  
Nursing Course ◽  
Different Levels ◽  
Municipal Health

This qualitative study used a case study approach with the aim of analyzing the cooperation between the Nursing Course of the Federal University of Santa Catarina and the Municipal Health Secretariat of Florianópolis, from the Pró-Saúde I Project. The data, from documentary sources and interviews, were analyzed using the directed content analysis technique, and interpreted considering the Cooperative Interorganizational Relationships Model. The results show commitment to formalize the project between both institutions, at a strategic level, followed by negotiations and commitments, culminating with a modified project and a new agreement regulating the partnership. For its implementation, the Management Committee was responsible for making effective, in a cyclic way, the relationship for the proposed activities. It is concluded that there was approximation between the institutions at different levels, reflected in the cooperation within the healthcare units for education-service integration, with the aim of redirecting the nursing training.

The Global Reach of EU Law

2019 ◽  
pp. 21-63
Author(s):  
Joanne Scott
Keyword(s):  
Environmental Law ◽  
Environmental Problems ◽  
Eu Law ◽  
Eu Regulation ◽  
The Relationship ◽  
Different Levels ◽  
The Eu ◽  
Global Reach ◽  
At Home

This chapter explores the mechanisms that enable the EU to extend the global reach of its laws. These include extraterritoriality, territorial extension and the ‘Brussels Effect’. It offers multiple examples of territorial extension operating at different levels and considers the relationship between territorial extension and the Brussels Effect. The second part of the chapter includes a case study on territorial extension in EU environmental law. While it is increasingly accepted that the ‘effects’ doctrine may be invoked to regulate foreign conduct that entails significant effects at home, this chapter considers whether the concept of complicity may help to justify EU regulation that seeks to address environmental problems that are manifested outside the EU.

scholarly journals Environmental Efficiency of Industrial Symbiosis – LCA Case Study for Gypsum Exchange

2018 ◽  
Vol 1 (1) ◽  
pp. 793-800 ◽  
Author(s):  
Andrzej Marcinkowski
Keyword(s):  
Life Cycle ◽  
Environmental Impact ◽  
Assessment Method ◽  
Critical Distance ◽  
Industrial Symbiosis ◽  
Heavy Trucks ◽  
Significant Difference ◽  
The Relationship ◽  
Lca Results

Abstract A review of the available literature concerning environmental impact assessment for industrial symbiosis has been carried out. The authors have recommended the use of life cycle assessment method for this purpose. It was stated that so far few studies presenting LCA results of industrial symbiosis have been published. Among the factors which contribute to the success of symbiotic exchange, the close location of collaborating companies has been often mentioned. This paper presents LCA results concerning the environmental impact of symbiotic gypsum transmission. Concepts of relative distance and critical distance for the case of industrial symbiosis were proposed and defined. Significant difference between critical distance obtained for particular endpoints were observed (3.5- 564 km). Application of Life Cycle Sustainability Triangle enabled the estimation of critical distance taking into account various impact categories. A sensitivity analysis indicated the relationship between critical distance and the means of transport which reflected the effect of scale. The critical distance determined for heavy trucks was 3.2 - 3.9 times longer than in case of lighter vehicles.

Proposal of Consistency Management Method Between Product and its Life Cycle for Supporting Life Cycle Design

2012 ◽  
Vol 6 (3) ◽  
pp. 272-278 ◽  
Author(s):  
Eisuke Kunii ◽  
◽  
Takeshi Matsuura ◽  
Shinichi Fukushige ◽  
Yasushi Umeda
Keyword(s):  
Life Cycle ◽  
Product Life Cycle ◽  
Product Life ◽  
Consistency Management ◽  
Cad System ◽  
Management Scheme ◽  
Life Cycle Design ◽  
Management Method ◽  
The Relationship

In order to increase value and reduce environmental loads and resource consumption over the entire product life cycle, a designer should design a product life cycle as well as a product in an integrated manner. In order to support such integrated life cycle design, we are currently developing Life Cycle CAD (LC-CAD) system. Indispensable requirements for LC-CAD system include the following three points: (1) Representing a product and its life cycle in an integrated manner, (2) Managing the consistency of the relationship between a product and its life cycle, and (3) Life cycle evaluation by using the information of a product and its life cycle. This paper focuses on the function (1) and (2), and proposes a method of consistency management between a product and its life cycle. For this purpose, this paper proposes a method for representing a product and its life cycle with defining the relationship between these two models. Then, this paper proposes a management scheme for the consistency of the relationship. We developed a prototype systemand applied it to design of Liquid Cristal Display (LCD) TV as a case study. The result indicates that the relationship between a product and its life cycle is successfully represented and managed, and that a designer can design them in an integrated manner.

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