Search results
1 – 10 of over 296000Dubravko Rogale and Zvonko Dragčević
A measuring system for automatic process parameter acquisition in garment sewing operations has been presented. The measuring equipment is based upon the usage of a very powerful…
Abstract
A measuring system for automatic process parameter acquisition in garment sewing operations has been presented. The measuring equipment is based upon the usage of a very powerful portable notebook IBM compatible personal computer, equipped with an AD converter, measuring instruments and adequate software packages for data storing and analysis. Characteristics of measuring instruments and sensors have also been given, together with measuring process description, all connected with two independent video‐camera systems, working in two planes, used for working operation analysis at workplaces in garment sewing operations.
Details
Keywords
KyoungOk Kim, Daisuke Iguchi and Masayuki Takatera
To make individualized men's basic upper garment patterns without sleeves, the authors developed a measuring garment that measures necessary body dimensions and angles all…
Abstract
Purpose
To make individualized men's basic upper garment patterns without sleeves, the authors developed a measuring garment that measures necessary body dimensions and angles all together. Additionally, the authors proposed a method for making individualized basic body block patterns using the obtained dimensions and angles.
Design/methodology/approach
The authors decided on the locations of the dimensions of the body required for making the individualized garments. The authors then sewed multiple stretchable capacitance sensors to corresponding locations on a stretchable T-shirt. To obtain the dimensions with sensors of short length, the authors indirectly obtained each length from the relationship between the actual body length and the capacitance of the sensor. Beforehand, the authors obtained linear-approximation equations for the relationship between actual body dimensions and the capacitance of sensors for five participants and a dummy. The authors then used the measuring garment and the equations to obtain the body dimensions of another six participants. The authors compared the obtained and actual body dimensions to verify the equations. The authors made individualized upper-garment patterns without sleeves and garments for the 11 participants with the obtained dimensions and angles. The authors verified the proposed method in wearing tests comparing garments designed using the proposed method with conventionally designed garments.
Findings
Using the measuring garment, the authors obtained body dimensions close to actual body dimensions. A pattern of the individualized basic upper garment using the obtained dimensions and angles could be drawn. Compared with the conventional patterns, the individualized patterns had notable differences in the locations of the shoulder point and side neck point and directions of the shoulder line, which relate to the shoulder shape (i.e. square, sloping, forward, or backward). In wearing tests, all participants declared that the individualized garment better fitted their shoulders than the conventional garment without tightness around the shoulders, neck, and armpits. The proposed method with the developed measuring garment was thus found to be effective in designing individualized garments.
Originality/value
This paper presents the possibility of not only measuring body dimensions but also designing individualized basic upper garments using the proposed measuring garment. The proposed measuring garment will assist the efficient manufacture of individualized upper garments without a three-dimensional scanner or special skills.
Details
Keywords
Subhash Chandra Sharma and Doug Hargreaves
Ideally, there is no wear in hydrodynamic lubrication regime. A small amount of wear occurs during start and stop of the machines and the amount of wear is so small that it is…
Abstract
Purpose
Ideally, there is no wear in hydrodynamic lubrication regime. A small amount of wear occurs during start and stop of the machines and the amount of wear is so small that it is difficult to measure with accuracy. Various wear measuring techniques have been used where out-of-roundness was found to be the most reliable method of measuring small wear quantities in journal bearings. This technique was further developed to achieve higher accuracy in measuring small wear quantities. The method proved to be reliable as well as inexpensive. The paper aims to discuss these issues.
Design/methodology/approach
In an experimental study, the effect of antiwear additives was studied on journal bearings lubricated with oil containing solid contaminants. The test duration was too long and the wear quantities achieved were too small. To minimise the test duration, short tests of about 90 min duration were conducted and wear was measured recording changes in variety of parameters related to weight, geometry and wear debris. The out-of-roundness was found to be the most effective method. This method was further refined by enlarging the out-of-roundness traces on a photocopier. The method was proved to be reliable and inexpensive.
Findings
Study revealed that the most commonly used wear measurement techniques such as weight loss, roughness changes and change in particle count were not adequate for measuring small wear quantities in journal bearings. Out-of-roundness method with some refinements was found to be one of the most reliable methods for measuring small wear quantities in journal bearings working in hydrodynamic lubrication regime. By enlarging the out-of-roundness traces and determining the worn area of the bearing cross-section, weight loss in bearings was calculated, which was repeatable and reliable.
Research limitations/implications
This research is a basic in nature where a rudimentary solution has been developed for measuring small wear quantities in rotary devices such as journal bearings. The method requires enlarging traces on a photocopier and determining the shape of the worn area on an out-of-roundness trace on a transparency, which is a simple but a crude method. This may require an automated procedure to determine the weight loss from the out-of-roundness traces directly. This method can be very useful in reducing test duration and measuring wear quantities with higher precision in situations where wear quantities are very small.
Practical implications
This research provides a reliable method of measuring wear of circular geometry. The Talyrond equipment used for measuring the change in out-of-roundness due to wear of bearings indicates that this equipment has high potential to be used as a wear measuring device also. Measurement of weight loss from the traces is an enhanced capability of this equipment and this research may lead to the development of a modified version of Talyrond type of equipment for wear measurements in circular machine components.
Originality/value
Wear measurement in hydrodynamic bearings requires long duration tests to achieve adequate wear quantities. Out-of-roundness is one of the geometrical parameters that changes with progression of wear in a circular shape components. Thus, out-of-roundness is found to be an effective wear measuring parameter that relates to change in geometry. Method of increasing the sensitivity and enlargement of out-of-roundness traces is original work through which area of worn cross-section can be determined and weight loss can be derived for materials of known density with higher precision.
Details
Keywords
Elzbieta Maklewska, Andrzej Nawrocki, Krzysztof Kowalski, Ewa Andrzejewska and Wojciech Kuzański
This paper aims to describe new measuring device designed for measuring the pressure exerted by textile products used in healing therapy of hypertrophic scars. The testing device…
Abstract
Purpose
This paper aims to describe new measuring device designed for measuring the pressure exerted by textile products used in healing therapy of hypertrophic scars. The testing device called “Textilpress” has been used for verification of the usually used method of designing and manufacturing ready‐made compression garment products.
Design/methodology/approach
The pressure measurement, realized by use of the “Textilpress” device, is an indirect measuring method, which is based on the Laplace Law. The investigations described in this paper concern the pressure measuring under textile bands placed on the models representing selected parts of the human body with pre‐set circumferences. For this purpose, rigid cylinders were prepared, covered by a layer of neoprene which simulated the susceptibility of human skin.
Findings
The investigations described in this paper indicate that the “Textilpress” test‐device may be used for pressure measuring exerted by compression bands on the cylinder surface. In order to estimate the pressure exerted on a particular body part with the shape close to a cylinder, a measurement should be carried out on a cylinder with a circumference similar to that of the selected part of the human body.
Research limitations/implications
The “Textilpress” test‐device may be used by the manufacturers for measuring pressures exerted by compression bands (manufactured from knitted fabrics) on the cylinder surface of a pre‐set diameter. In order to estimate the pressure exerted on a particular body part with the shape close to a cylinder, a measurement should be carried out on a cylinder with a circumference similar to that of the selected part of the human body.
Originality/value
As hospitals do not possess appropriate measuring devices, which would enable one to measure the pressure on the scar exerted by the textile garment, the pressure efficiency and the appropriate fittings are estimated subjectively for the particular case. The “Textilpress” device enables monitoring such pressure.
Details
Keywords
Arno van der Hoeven, Adam Behr, Craig Hamilton, Martijn Mulder and Patrycja Rozbicka
This paper sets out to compare different methodologies for measuring the value(s) of live popular music and to explore the different motivations amongst a range of organisations…
Abstract
Purpose
This paper sets out to compare different methodologies for measuring the value(s) of live popular music and to explore the different motivations amongst a range of organisations engaged in that work.
Design/methodology/approach
The authors analyse how the values of live music are measured, who does it and why. Based on this analysis the authors present a model that visualises the myriad of organisations, methods, aims and objectives involved.
Findings
The authors identify three approaches to measuring the impact of live music (economic impact studies, mapping and censuses and social sciences and humanities) and three types of actors (industry, policy and academia). The analysis of these demonstrates that measuring live music is not a neutral activity, but itself constructs a vision on how live music ecologies function
Practical implications
For cultural organisations, demonstrating the outcomes of their work is important in acquiring various forms of support. The model presented in this paper helps them to select adequate methodologies and to reflect on the consequences of particular approaches to measuring live music activities.
Originality/value
While the number of studies measuring live music's impact is growing, theoretical and methodological reflection on these activities is missing. The authors compare the different methodologies by discussing strengths and weaknesses. This results in a model that identifies gaps in existing studies and explores new directions for future live music research. It enhances understanding of how different ways of measuring live music affect policymaking and conceptions of what live music is and should be.
Details
Keywords
Nga-wun Li, Chu-po Ho, Kit-lun Yick and Jin-yun Zhou
Net buoyant force is a crucial factor affecting the functional performance of clothing for water safety. This study aims to develop an alternative method for measuring the net…
Abstract
Purpose
Net buoyant force is a crucial factor affecting the functional performance of clothing for water safety. This study aims to develop an alternative method for measuring the net buoyant force of various buoyant materials such as buoyant fabrics, on a small scale in a more accurate and efficient way than the existing method.
Design/methodology/approach
The net buoyant forces of buoyant materials with different thicknesses and forms were determined and compared using three methods. In Method 1, the traditional method involving mathematical calculations was used; Method 2 involved using the buoyancy-measuring device from the study of Jin et al. (2018) and Method 3 involved using an alternative buoyancy-measuring system that simulates the actual situation of using buoyant swimwear by measuring the force needed to submerge the buoyant material in water at a standard depth. The net buoyant forces of 22 buoyant materials were measured and compared to test these three methods. The accuracy, reproducibility, sensitivity and validity of these methods were then statistically compared.
Findings
The results obtained with the alternative buoyancy-measuring system had higher accuracy, reproducibility and validity than the results obtained through mathematical calculations. The sensitivity of the buoyancy-measuring system (Methods 2 and 3) was higher than that of the traditional method involving calculations (Method 1).
Originality/value
An alternative method is proposed to measure the net buoyant force of buoyant materials on a small scale with higher accuracy, reproducibility and sensitivity.
Details
Keywords
Shigeru Aomura, Muneo Harada, Toshihiro Nagatomo, Satoshi Yanagihara and Mitsuo Tachibana
The aim of this paper is to describe how to make a co‐operative motion plan for a dual manipulator system to measure the radioactivity of wastes produced in decommissioning a…
Abstract
Purpose
The aim of this paper is to describe how to make a co‐operative motion plan for a dual manipulator system to measure the radioactivity of wastes produced in decommissioning a nuclear power plant.
Design/methodology/approach
The system consists of two tasks: the main task generates the path of the measuring operation and the subtask maintains a good working position by co‐operative motion of the two manipulators.
Findings
A dual manipulator system requires an effective indicator of the current working position for the realisation of flexible co‐operative motion. Extended manipulability, which takes the motion limit of each joint angle into consideration, is shown to be an effective indicator.
Originality/value
Extended manipulability, which shows the motion possible from the current configuration, is offered as an improvement on conventional manipulability.
Details
Keywords
Hee-sung BAE, Woo-young LEE and Yang-kee LEE
This research has three objectives: one is to develop measuring criteria for ascertaining performance of customs clearance firms, another is to test reliability and validity of…
Abstract
This research has three objectives: one is to develop measuring criteria for ascertaining performance of customs clearance firms, another is to test reliability and validity of the factors, and the third is to analyze the relationship between customer service and firm performance. This research gathered the data from customs clearance firms. Reliability and validity concerned with the collected data are tested by exploratory factor analysis and confirmatory factor analysis and the relationship between variables is tested by analyzing structural equation modeling. The results are as follows. There are no problems in reliability and validity. According to the result of the analysis, customer service is divided into customer focus, customer needs, customer response and flexibility and performance is classified into customer performance and financial performance. The result of empirical tests is as follows. Customer focus has a positive effect on customer performance and financial performance. Flexibility has a positive effect on both types of performance. This means that firms which have discriminative services and a high level of flexibility through collaboration with customers can achieve high levels of customer performance and financial performance.
Details
Keywords
The purpose of this paper is to identify the required factors that can be considered necessary in conceptualizing the features of an efficient and effective performance…
Abstract
Purpose
The purpose of this paper is to identify the required factors that can be considered necessary in conceptualizing the features of an efficient and effective performance measurement system (PMS) that is appropriate in the modern organizational setting. The field of PMS is heavily researched and yet certain fundamentals of PMS, in particular the precise meaning and application of the features of PMS: data, measuring attributes consisting of measures, metrics and indicators, and methods of measurement remain unclear.
Design/methodology/approach
The paper uses a systematic approach in reviewing and examining existing PMS and non-PMS articles that focus on the features for measurement from 1990 (January) to 2012 (November). Further, citation analysis was used to support the review as well-cited articles are considered well-read by researchers, and hence they should have sufficient impact in the academic community.
Findings
The outcomes of this review contribute and update existing literature on PMS in three ways: identification of gaps in terms of practical usefulness and academic research; suggestions of solutions in the form of a conceptual framework to improve measurement and performance measurement using the correct features of PMS; and recommendation of a direction for future research with regard to the features of PMS.
Research limitations/implications
Although the proposed concept has many merits, the conceptualized features (as yet) have not reached the stage beyond normative reasoning.
Practical implications
The paper defines a measure, metric and an indicator which relates to the use of accounting and non-accounting data, and suggests some of the non-accounting methods of measurement and performance measurement that can be used generally in various organizations. Using an illustration, this paper suggests appropriate ways to construct and implement the measuring attributes using appropriate measuring methods in a car maker. This paper also warns users to construct and use the features of PMS judiciously as incorrect uses of these attributes can easily be misconstrued, and thus causing incorrect inferences in decision-making.
Originality/value
This is a seminar paper that defines the measuring attributes of PMS for the conceptualization of a workable framework of the features of PMS.
Details
Keywords
Krunoslav Arbanas, Mario Spremic and Nikolina Zajdela Hrustek
The objective of this research was to propose and validate a holistic framework for information security culture evaluation, built around a novel approach, which includes…
Abstract
Purpose
The objective of this research was to propose and validate a holistic framework for information security culture evaluation, built around a novel approach, which includes technological, organizational and social issues. The framework's validity and reliability were determined with the help of experts in the information security field and by using multivariate statistical methods.
Design/methodology/approach
The conceptual framework was constructed upon a detailed literature review and validated using a range of methods: first, measuring instrument was developed, and then content and construct validity of measuring instrument was confirmed via experts' opinion and by closed map sorting method. Convergent validity was confirmed by factor analysis, while the reliability of the measuring instrument was tested using Cronbach's alpha coefficient to measure internal consistency.
Findings
The proposed framework was validated based upon the results of empirical research and the usage of multivariate analysis. The resulting framework ultimately consists of 46 items (manifest variables), describing eight factors (first level latent variables), grouped into three categories (second level latent variables). These three categories were built around technological, organizational and social issues.
Originality/value
This paper contributes to the body of knowledge in information security culture by developing and validating holistic framework for information security culture evaluation, which does not observe information security culture in only one aspect but takes into account its organizational, sociological and technical component.
Details