Applying 5S lean tools to optical fabrication

2005 ◽  
Author(s):  
Gregory J. Arserio ◽  
Richard A. Nasca
Keyword(s):  
Optical Fabrication ◽  
Lean Tools

A critical review of optical switches

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ompal Singh ◽  
Rajeev Paulus
Keyword(s):  
Future Generation ◽  
Optical Switches ◽  
Literature Survey ◽  
Optical Packet Switching ◽  
Optical Fabrication ◽  
Optical Components ◽  
Detailed Review ◽  
Switch Architectures ◽  
Packet Switch ◽  
Large Speed

Abstract Optical packet switching has gained lot of popularity in last a few years due to its advantages like, large speed, more bandwidth and very less crosstalk. But due to immature optical fabrication and designing technology OPS is still beyond reality. However, many of the optical components are commercialized and some of them are still in laboratory. Thus, for optical switches which are considered as future generation routers, many switch architectures are proposed by using different sets of optical components. This paper presents a detailed review of notable switch designs in past 20 years, and also presents a comprehensive literature survey of the notable papers related to optical packet switch designs.

High Performance Optics: The Precision Optical Fabrication

1989 ◽  
Vol 18 (4) ◽  
pp. 90-95
Author(s):  
Prakash O. Borole
Keyword(s):  
High Performance ◽  
Optical Fabrication

A Study of Lean Behavior in Business Development and IT Department

2015 ◽  
Vol 761 ◽  
pp. 566-570
Author(s):  
A.P. Puvanasvaran ◽  
N. Norazlin ◽  
C. Suk Fan
Keyword(s):  
Continuous Improvement ◽  
Essential Element ◽  
Business Development ◽  
Clear Understanding ◽  
Time Data ◽  
The Social ◽  
It Department ◽  
Lean Tools ◽  
Questionnaire Method ◽  
Self Administered Questionnaire

Lean behavior is an essential element to create a culture of continuous improvement culture in a service organization. Continuous improvement is defined as the never-ending efforts for improvement involving everyone in an organization. The purpose of this study is to evaluate the changes of behavioral practices after the introduction of lean tools and discuss the effects of lean behavior in developing a culture of continuous improvement in an office environment. This study adopted a self-administered questionnaire method to obtain real time data for the analysis of behavioral practices. Ford Questionnaire was used and distributed to employees of different management levels in the Business Development and IT Department. The obtained results were analyzed using the Statistical Package for the Social Sciences (SPSS) software. The same questionnaire survey was distributed after the introduction of lean tools. The expected outcomes of this study were to determine the level of lean behavioral practices in the office department and to provide a clear understanding of some lean behavioral practices that need to be nurtured among the employees in order to produce a healthy work environment.

A framework for assessing the cost effectiveness of lean tools

2011 ◽  
Vol 5 (2) ◽  
pp. 170 ◽  
Author(s):  
Imad Alsyouf ◽  
Raid Al Aomar ◽  
Heba Al Hamed ◽  
Xiaojin Qiu
Keyword(s):  
Cost Effectiveness ◽  
Lean Tools ◽  
The Cost

Buyer-assisted lean intervention in supplier firms: a supplier development approach

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Imranul Hoque
Keyword(s):  
Financial Incentives ◽  
Large Scale ◽  
Qualitative Data ◽  
Research Approach ◽  
Capability Development ◽  
Content Type ◽  
Production Capability ◽  
Lean Tools ◽  
The Right ◽  
The Impact

PurposeThis study aims to investigate how buyer-assisted lean intervention in garment supplier factories affects garment suppliers' productivity and production capability development.Design/methodology/approachEmploying a qualitative research approach and a lean intervention design, a multiple case study method was adopted for this study. Quantitative data on productivity performance and qualitative data on production capability development were collected from a Danish buyer and their four corresponding garment suppliers. Collected data were analysed using standard lean measurement tools and qualitative data analysis techniques.FindingsThis study demonstrates that buyer-assisted lean intervention is a useful strategy for garment suppliers to enhance their productivity and production capability. However, suppliers need to select the right lean tools, ensure seriousness and commitment to lean initiatives, substantial involvement of top management and workers, arrange formal and informal training, provide performance-based financial/non-financial incentives and nurture a learning culture to facilitate suppliers' production capability development.Research limitations/implicationsThis study implemented few lean tools in a single sewing line in four supplier factories for a short intervention duration. Thus, there is a scope for future studies to investigate the impact of the lean intervention on a large scale.Practical implicationsThe findings of this study might bring new insights to the management of buyer and supplier firms concerning how buyers could involve in suppliers' lean intervention initiatives and what suppliers need to ensure to develop production capability.Originality/valueFor the first time, this study engaged a buyer in suppliers' lean intervention initiatives to improve productivity and production capability in the garment industry of a developing country.

Jet Shape Analysis and Removal Function Optimization of Atmospheric Plasma Processing Applied in Optical Fabrication

2021 ◽  
Author(s):  
Yuan Jin ◽  
Bo Wang ◽  
Peng Ji ◽  
Zheng Qiao ◽  
Duo LI ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Rotational Symmetry ◽  
Mechanical Damage ◽  
Plasma Jet ◽  
Function Optimization ◽  
Atmospheric Plasma ◽  
Optical Fabrication ◽  
Mixed Gas ◽  
Pinch Effect ◽  
Inductively Coupled

Abstract When using Inductively Coupled Plasma (ICP) as a machining tool, its processing method based on the principle of chemical etching leads to no contact stress between the tool and the material, thereby generating no mechanical damage. In recent years, this issue has been widely concerned in the field of optical fabrication. However, there are many differences between low power ICP jet and conventional ICP jet, one of which is that the former does not easily form a rotation-symmetric removal function due to its obvious pinch effect. In this research, the electromagnetism principle of the plasma pinch effect was analyzed firstly, and the jet shape under the pinch effect was classified. Then, experimental study was carried out on the plasma jet shape under the pure Ar and mixed gas of CF4-Ar, and the influence law of the reaction gas on the jet propagation shape was analyzed. Finally, the rotational symmetry of the removal function of plasma jet processing was optimized, and the nozzle design criteria based on pinch effect were proposed.

Selection methods of lean management tools: a review

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ali Jaber Naeemah ◽  
Kuan Yew Wong
Keyword(s):  
Decision Making ◽  
Performance Metrics ◽  
Work Conditions ◽  
Lean Management ◽  
Selection Methods ◽  
Tool Selection ◽  
Content Type ◽  
Customer Complaints ◽  
Lean Tools ◽  
Selection Of

PurposeThe purpose of this paper is (1) to review, analyze and assess the existing literature on lean tools selection studies published from 2005 to 2021; (2) to identify the limitations faced by previous studies; and (3) to suggest future works that are necessary to facilitate the selection of lean tools.Design/methodology/approachA systematic approach was used in order to identify, collect and select the articles. Several keywords related to the selection of lean tools were used to collect articles from different Scopus indexed journals. Next, the study systematically reviewed and analyzed the selected papers to identify the lean tools' selection method and discussed its features and limitations.FindingsAn analysis of the results showed that previous studies have adopted two types of methods for selecting lean tools. First, there are various traditional methods being used. Second, multi-criteria decision-making (MCDM) methods were commonly used in previous studies, such as the multi-objective decision-making method (MODM), single multi-attribute decision-making (MADM) methods and hybrid (MCDM). Moreover, the study revealed that the lean tools' selection methods in previous studies were based on evaluating the relationship between either lean tools and performance metrics or lean tools and waste, or both.Research limitations/implicationsIn terms of its theoretical value, the study is considered as an extension of the previous researches performed on this topic by determining and analyzing the features of the most selection methods of lean tools. Unlike previous review papers, this review had considered discussing and analyzing the characteristics and limitations of these methods. Section 2.2 of this paper reviewed some of the categories of MCDM methods as well as some of the traditional methods used in the selected previous studies. Section 2.1 of this paper explained the concept of lean management and its application benefits. Further, only three sectors were covered by the previous studies in this review paper. This study also provided recommendations for future research. Therefore, it provided researchers with a good conception of how to conduct the studies on lean tools selection. Besides, knowing the methods used in previous studies can help researchers develop new methods to select the best set of lean tools. That is, this study provided and advanced the existing knowledge base for researchers concerning lean tools selection, especially there is limited availability of review papers on this topic. Moreover, the study showed researchers the importance of the relationship between lean tools and indicators or/and performance indicators to determine the appropriate set of lean tools so that the results of future studies will be more realistic and acceptable.Practical implicationsPractically, manufacturers face a significant challenge when selecting proper lean tools. This study may enhance managers, manufacturers and company's knowledge to identify most of the methods used to choose the best set of lean tools and what are the advantages, disadvantages and limitations of these methods as well as the latest studies that have been adopted in this topic. That means this study can direct companies to prioritize the application of lean tools depending on either the manufacturing performance metrics or/and manufacturing wastes so that they avoid incorrect application of lean tools, which will add more non-value added activities to operations. Therefore companies can decrease the time and cost losses and enhancing the quality and efficiency of the performance. Correctly implementing the best set of lean tools in companies will lead in general to correctly applying lean management in corporations. Therefore, these lean tools can boost the economic aspect of companies and society through reducing waste, improving performance indicators, preserving time and cost, achieving quality, efficiency, competitiveness, boosting employee income and improving the gross domestic product. The correct lean tool selection reduces customer complaints and employee stress and improves work conditions, health, safety and labor wellbeing. Besides, the correct lean tools selection improves materials usage, energy usage, water usage and decreases liquid wastes, solid wastes and air emissions. As a result, the right selection of lean tools will have positive effects on both the environment and society. The study may also encourage manufacturers and researchers to adopt studies on lean tools selection in small- and medium-sized companies because the study referred to the importance and participation of these kinds of companies in a large proportion of the economy of developing countries. Further, the study may encourage some countries that have not previously adopted this type of study, academically and industrially to conduct lean tools selection studies.Social implicationsAs mentioned previously, the correct lean tool selection reduces customer complaints and employee stress and improves work conditions, health, safety and labor wellbeing. The proper lean tools selection improves materials usage, energy usage, water usage and decreases liquid wastes, solid wastes and air emissions. As a result, the right choice of lean tools will positively affect both the environment and society.Originality/valueThe study expanded the efforts of previous studies concerning lean management features. It provided an accurate review of most lean tools selection studies published from 2005 to 2021 and was not limited to the manufacturing sector. It further identified and briefly described the selection methods concerning lean tools adopted in each paper.

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