Prediction and categorization of fabric drapability for 3D garment virtualization

2020 ◽  
Vol 32 (4) ◽  
pp. 523-535
Author(s):  
Jimin Kim ◽  
Yun Jeong Kim ◽  
Myounghee Shim ◽  
Youngmin Jun ◽  
Changsang Yun
Keyword(s):  
Mechanical Properties ◽  
Design Methodology ◽  
Multinomial Logistic Regression ◽  
Simulation System ◽  
Content Type ◽  
Multinomial Logistic Regression Analysis ◽  
Independent Variables ◽  
Bending Property ◽  
Group A ◽  
Time Savings

PurposeThis study aims to create a classification system enabling users of 3D virtualization software to intuitively perceive the drapability of fabrics.Design/methodology/approach1,001 fabrics were used, and thickness, bending property, and tensile strength were identified as main mechanical properties influencing drapability; they have been set as independent variables in the model established to predict drape coefficient.FindingsA system to classify fabrics into eight groups by drapability was suggested by a cluster analysis, and a multinomial logistic regression analysis was used to set a model that allows users to predict which group a fabric belongs to from its mechanical properties.Originality/valueThis paper provided basic materials for the construction of a virtual clothing simulation system, which is believed to contribute to cost and time savings in decision-making by reducing the number of trials and errors required by the conventional approach.

Online viewers’ choices over advertisement number and duration

2020 ◽  
Vol 14 (2) ◽  
pp. 215-238
Author(s):  
Stephen Nettelhorst ◽  
Laura Brannon ◽  
Angela Rose ◽  
Whitney Whitaker
Keyword(s):  
Exposure Time ◽  
Design Methodology ◽  
Persuasive Messages ◽  
Content Type ◽  
Independent Variables ◽  
Research Designs ◽  
Total Exposure Time ◽  
Online Simulations ◽  
Independent Variable ◽  
Two Independent Variables

Purpose The purpose of this study is to investigate online viewers’ preferences concerning the number and duration of video advertisements to watch during commercial breaks. The goal of the investigations was to assess whether online viewers preferred watching a fewer number of advertisements with longer durations or a greater number of advertisements with shorter durations. Design/methodology/approach Two studies used experimental research designs to assess viewers’ preferences regarding advertisements. These designs used two independent variables and one dependent variable. The first independent variable manipulated the type of choice options given to online viewers (e.g. one 60 s or two 30 s advertisements). The second independent variable manipulated when the choice was given to online viewers (i.e. at the beginning of the viewing experience or in the middle of the experience). The dependent variable measured viewers’ choices concerning their preferred advertisement option. Findings The results across both studies found that participants made choices that minimized total advertisement exposure time when possible. When minimizing total exposure time was not possible, participants made choices that minimized the number of exposures instead. Originality/value These investigations extend the literature on advertisement choice by examining online viewers’ preferences about the format of their advertising experience rather than the content of the persuasive messages themselves. In addition, these investigations provide value by investigating viewers’ responses to stimuli within realistic online simulations rather than abstract hypotheticals.

Prevalence of malnutrition among women and adolescent girls: impact of urbanization in rural–urban interface of Bangalore

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Veerabhadrappa Bellundagi ◽  
K.B. Umesh ◽  
B.C. Ashwini ◽  
K.R. Hamsa
Keyword(s):  
Nutritional Status ◽  
Adolescent Girls ◽  
Associated Factors ◽  
Multinomial Logistic Regression ◽  
Wealth Index ◽  
Total Sample ◽  
Normal Weight ◽  
Double Burden ◽  
Content Type ◽  
Multinomial Logistic Regression Analysis

PurposeIndia is facing a double burden of malnutrition, i.e. undernutrition and obesity. Women and adolescent health and nutrition are very relevant issues which have not received much attention it deserves in India, especially in the context of a girl child. Hence, the purpose of this study is to assess malnutrition among women and adolescent girls as well as the associated factors.Design/methodology/approachAn attempt was made to assess malnutrition among women and adolescent girls and associated factors. The required data was collected from the north (616) and south transects (659) sample households of Bangalore constituting a total sample size of 1,275. The data was analyzed by adopting multiple linear regression and multinomial logistic regression analysis using STATA software.FindingsThe effects of this study simply confirmed that, urbanization had an instantaneous effect on dietary repute of women and adolescent girls, while transferring throughout the gradient from rural to urban with the growing significance of weight problems and obese. In adolescent girls, about 31% were underweight followed by normal weight and overweight across rural–urban interface of Bangalore. The factors such as education, consumption of meat and animal products, a dummy for urban, diabetes and blood pressure were significantly and positively influencing the nutritional status (Body Mass Index) of women across rural–urban interface. While consumption of vegetables, wealth index and per capita income had a positive and significant influence on the nutritional status of adolescent girls.Originality/valueWith limited studies and data available in Karnataka, especially in Bengaluru, one of the fastest growing cities in the world. Against this backdrop, the study was conducted to assess the prevalence of malnutrition among women and adolescents and its association with various socio-economic variables.

Deposition-induced effects of isotactic polypropylene and polycarbonate composites during fused deposition modeling

2017 ◽  
Vol 23 (5) ◽  
pp. 869-880 ◽  
Author(s):  
Ying-Guo Zhou ◽  
Bei Su ◽  
Lih-sheng Turng
Keyword(s):  
Mechanical Properties ◽  
Design Methodology ◽  
Fused Deposition Modeling ◽  
Content Type ◽  
Fused Deposition ◽  
Close Relationship ◽  
Molded Parts ◽  
Deposition Modeling ◽  
Injection Molded ◽  
First Time

Purpose Although the feasibility and effectiveness of the fused deposition modeling (FDM) method have been proposed and developed, studies of applying this technology to various materials are still needed for researching its applicability, especially with regard to polymer blends and composites. The purpose of this paper is to study the deposition-induced effect and the effect of compatibilizers on the mechanical properties of polypropylene and polycarbonate (PP/PC) composites. Design/methodology/approach For this purpose, three different deposition modes for PP/PC composites with or without compatibilizers were used for the FDM method and tested for tensile properties. Also, parts with the same materials were made by injection molding and used for comparison. In addition, different deposition speeds were used to investigate the different deposition-induced effects. Furthermore, the behavior of the mechanical properties was clarified with scanning electron microscope images of the fracture surfaces. Findings The research results suggest that the deposition orientation has a significant influence on the mechanical behavior of PP/PC composite FDM parts. The results also indicate that there is a close relationship between the mechanical properties and morphological structures which are deeply influenced by compatibilization. Compared with injection molded parts, the ductility of the FDM parts can be dramatically improved due to the formation of fibrils and micro-fibrils by the deposition induced during processing. Originality/value This is the first paper to investigate a PP/PC composite FDM process. The results of this paper verified the applicability of PP/PC composites to FDM technology. It is also the first time that the deposition-induced effect during FDM has been investigated and studied.

On the role of different annealing heat treatments on mechanical properties and microstructure of selective laser melted and conventional wrought Ti-6Al-4V

2017 ◽  
Vol 23 (2) ◽  
pp. 295-304 ◽  
Author(s):  
AmirMahyar Khorasani ◽  
Ian Gibson ◽  
Moshe Goldberg ◽  
Guy Littlefair
Keyword(s):  
Mechanical Properties ◽  
Design Methodology ◽  
Stress Relief ◽  
Heat Treatments ◽  
Recrystallization Annealing ◽  
Content Type ◽  
Hardness Increase ◽  
As Stress ◽  
Different Characteristics

Purpose The purpose of this study was to conduct various heat treatments (HT) such as stress relief annealing, mill annealing, recrystallization (α + β) annealing and β annealing followed by furnace cooling (FC) that were implemented to determine the effect of these on mechanical properties and the microstructure of selective laser melted and wrought samples. The mentioned annealings have been carried out to achieve the related standards in the fabrication of surgery implants. Design/methodology/approach In this paper, based on F2924-14 ASTM standard SLM and conventionally wrought parts were prepared. Then HT was performed and different characteristics such as microstructure, mechanical properties, macro-hardness and fracture surface for selective laser melted and wrought parts were analysed. Findings The results show that the high cooling rate in selective laser melting (SLM) generates finer grains. Therefore, tensile strength and hardness increase along with a reduction in ductility was noticed. Recrystallization annealing appears to give the best combination of ductility, strength and hardness for selective laser melted parts, whilst for equivalent wrought samples, increasing HT temperature results in reduction of mechanical properties. Originality/value The contributions of this paper are discussing the effect of different annealing on mechanical properties and microstructural evolution based on new ASTM standards for selective laser melted samples and comparing them with wrought parts.

Optimization of the color fastness and mechanical properties of pigment dyed PC fabric

2018 ◽  
Vol 47 (5) ◽  
pp. 396-405
Author(s):  
Abdul Azeem ◽  
Sharjeel Abid ◽  
Noman Sarwar ◽  
Shahzaib Ali ◽  
Ahsan Maqsood ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Design Methodology ◽  
Industrial Process ◽  
Color Fastness ◽  
Content Type ◽  
Washing Fastness ◽  
Market Values ◽  
Dyed Fabrics ◽  
Bending Length ◽  
Practical Implications

Purpose The purpose of this study is to improve the mechanical properties and reduce the stiffness/harshness of fabric associated with the pigment dyeing of textiles. Design/methodology/approach The fabric was pigment dyed with the addition of three different softeners and binders. The fabric was then analyzed to have improved textile properties by measuring tear strength, bending length, crocking and washing fastness tests. Findings The conventional route of pigment dyeing (without any softener) imparted poor mechanical and rubbing fastness. The softener-added recipe provided better mechanical, rubbing and washing fastness, and the stiffness values were oppressed as well. Practical implications Because of reduced stiffness, increased fastness and mechanical properties, the use of softener with pigment dyeing can improve the market values and satisfaction of the dyed fabrics. The finished product would also have better life and endurance. The process can be modified easily to have a better end-product with a negligible cost addition in industrial process, as softeners are cheap and used in low (10-20 g/l) in industrial settings without affecting the required shades. Originality/value This is the first report, to the best of the author’s knowledge, on the optimization of pigment dyeing of PC fabric with the addition of Helizarin and perapret softeners in dyeing bath.

Evaluation and prediction of material fatigue characteristics under impact loads: review and prospects

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xintian Liu ◽  
Que Wu ◽  
Shengchao Su ◽  
Yansong Wang
Keyword(s):  
Mechanical Properties ◽  
Design Methodology ◽  
Mechanical Performance ◽  
Impact Load ◽  
Impact Loads ◽  
Content Type ◽  
Material Fatigue ◽  
Mechanical Properties Of Materials ◽  
Fatigue Characteristics ◽  
Properties Of Materials

PurposeThe properties of materials under impact load are introduced in terms of metal, nonmetallic materials and composite materials. And the application of impact load research in biological fields is also mentioned. The current hot research topics and achievements in this field are summarized. In addition, some problems in theoretical modeling and testing of the mechanical properties of materials are discussed.Design/methodology/approachThe situation of materials under impact load is of great significance to show the mechanical performance. The performance of various materials under impact load is different, and there are many research methods. It is affected by some kinds of factors, such as the temperature, the gap and the speed of load.FindingsThe research on mechanical properties of materials under impact load has the characteristics as fellow. It is difficult to build the theoretical model, verify by experiment and analyze the data accumulation.Originality/valueThis review provides a reference for further study of material properties.

Copa America: a resource-based theory of football talent

2019 ◽  
Vol 25 (3/4) ◽  
pp. 176-191
Author(s):  
Peter Omondi-Ochieng
Keyword(s):  
Logistic Regression ◽  
Design Methodology ◽  
Binary Logistic Regression ◽  
Content Type ◽  
Independent Variables ◽  
Football Team ◽  
Practical Implications ◽  
Resource Based Theory

Purpose Guided by the resource-based theory, the purpose of this study was to predict the role of football talent in the Federation Internationale de Football Association (FIFA) rankings of the men’s national football teams in the Copa America zone. Design/methodology/approach The study used archival data of Copa American national football teams. The dependent variable was FIFA rankings, and the independent variables were football talent (measured by the stocks of amateur footballers, professional footballers and football officials). Statistical analysis was performed using Kendall tau statistic and binary logistic regression. Findings The binary logistic regression results indicated that FIFA rankings were statistically and significantly associated with the stock of football officials and professional footballers – but not amateur footballers. The predictive model explained 80 per cent of the variance. Research limitations/implications The study focused exclusively on the stock of football talent in each nation, and not alternative determinants of national football team competitiveness as economic power and quality of professional football leagues, among others. Practical implications The stocks of professional footballers and football officials are valuable sources of competitive advantage (CA) in national football team rankings. Originality/value The study highlighted the uniqueness and distinctiveness of a nation possessing large stocks of professional footballers which can boost the CA and rankings of Copa American national football teams.

Manufacturers' and distributors' capabilities influencing dual channel choice

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ryuta Ishii
Keyword(s):  
System Performance ◽  
Multinomial Logistic Regression ◽  
Product Line ◽  
Channel Structure ◽  
Channel System ◽  
Content Type ◽  
Multinomial Logistic Regression Analysis ◽  
Dual Channel ◽  
Channel Strategy ◽  
Dual Channels

PurposeMany manufacturers implement a dual channel strategy, which can be defined as the simultaneous use of integrated and independent channels of distribution for the same product line. This study employs the resource-based theory and examines how manufacturers' and distributors' capabilities affect manufacturers' choices of dual channel strategy. The study also examines how fit between organisational capability and channel structure affects channel system performance.Design/methodology/approachEmpirical testing was conducted using survey data collected from 262 Japanese business-to-business manufacturers. This study performed a multinomial logistic regression analysis to examine the antecedents of dual channel strategy and a t-test to examine its performance implications.FindingsThe results show that manufacturers' information capabilities and the availability of distributors' selling capabilities affect whether manufacturers choose a dual channel strategy, and that market turbulence moderates the effects of these two capability factors. The results also indicate that manufacturers can improve their channel system performance by choosing channel strategies that fit organisational capabilities.Originality/valueMost previous studies employ transaction cost theory to identify the factors driving the choice of dual channel strategy. However, these studies neglect the heterogeneity of resources/capabilities. Little is known about whether capability factors affect the dual channel strategy, and how this choice can be linked to channel system performance. By addressing this knowledge gap, this study contributes to enhance our understanding of dual channels.

A mediator of consumers' willingness to pay for halal logistics

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Dg Ku Zunaidah Ag Majid ◽  
Suhaila Abdul Hanan ◽  
Hazlinda Hassan
Keyword(s):  
Willingness To Pay ◽  
Empirical Research ◽  
Significant Influence ◽  
Design Methodology ◽  
Direct Relationship ◽  
Content Type ◽  
Independent Variables ◽  
Survey Questions ◽  
Increasing Demand

PurposeThe halal industry has been growing in recent years, seeing an increasing demand for halal products from both Muslim and non-Muslim consumers and acknowledging that halal is a universal concept accepted by both Muslim and non-Muslim societies. Service-related providers, such as logistics, could influence the demand for halal products by consumers. This paper aims to investigate the factors that influence consumers' willingness to pay (WTP) for halal logistics among young non-Muslim adults.Design/methodology/approachA set of survey questions were distributed to young non-Muslim adults and 280 questionnaires were analysed.FindingsThe results indicate that three independent variables had a direct relationship and significant influence on the WTP for halal logistics among non-Muslim consumers. These variables are concern on halal, knowledge about halal and perception of halal logistics. Meanwhile, the awareness of halal logistics significantly influenced the consumers' WTP for halal logistics, provided that it was mediated by the perception of halal logistics.Originality/valueGiven the gap in research on halal logistics and WTP, this paper presents a consolidated examination of this subject, particularly the WTP of young non-Muslim adults. Furthermore, by including the perception of halal logistics as a mediator, this study leverages the halal logistics knowledge to a new level, thus deepening the understanding of this topic and contributing additional knowledge. This study also presents some opportunities for future empirical research.

E-commerce trading activity and the SME sector: an FSB perspective

2013 ◽  
Vol 20 (4) ◽  
pp. 866-888 ◽  
Author(s):  
David Pickernell ◽  
Paul Jones ◽  
Gary Packham ◽  
Brychan Thomas ◽  
Gareth White ◽  
...  
Keyword(s):  
Public Sector ◽  
Small Businesses ◽  
Design Methodology ◽  
Public Procurement ◽  
Content Type ◽  
Independent Variables ◽  
High Knowledge ◽  
Ict Development ◽  
The University ◽  
Trading Behaviour

Purpose – This study aims to examine e-commerce within UK small and medium sized enterprises (SMEs). More specifically, it seeks to explore associations between e-commerce and internal and external antecedents including trading behaviour, owner/manager characteristics, innovation, public sector involvement, business advice and finance sources. Design/methodology/approach – An 8,500+ sample derived from the 2008 UK Federation of Small Businesses survey was utilised. An OLS regression equation was generated where the percentage of sales made using e-commerce constituted the dependent variable. Independent variables were constructed for several sets of factors including innovation, business advice and sources of finance, as well as a range of owner and SME typology variables. Findings – The results suggest that e-commerce is more strongly apparent in SMEs started from scratch and where they were involved in basic or high knowledge services or the tourist trade. SMEs undertaking e-commerce were also associated with innovation in the form of copyright, as well as public procurement with local authorities and the university sector. Specific business advice in the form of capacity, family and suppliers was also associated with e-commerce trading. Research limitations/implications – These results have implications for SMEs and public sector stakeholders. SMEs must recognise the importance of several potential antecedents such as intellectual property rights, specific business advice and finance to encourage e-commerce. Moreover, it was apparent that certain SME characteristics, namely locality and trading behaviour, were associated with effective e-commerce. Originality/value – This study will be of value to academia, SMEs and key public sector stakeholders in the formulation of policy for ICT development.

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