scholarly journals Trend on the Metal Recovery Technologies from Electric and Electronic Equipment Manufacturing Process Wastes

2012 ◽  
Vol 21 (4) ◽  
pp. 26-34
Author(s):  
Jinki Jeong ◽  
Doyun Shin ◽  
Jae-Chun Lee ◽  
Sang-Woo Park
1988 ◽  
Vol 31 (1) ◽  
pp. 17-23
Author(s):  
Carlos Talbott

Air Force policy requires the implementation of Environmental Stress Screening (ESS) programs on electronic equipment procurements and the establishment of ESS for electronic inventory repair. The purpose of this policy is to move failures, due to weak parts and poor workmanship, out of the field and back into the factory. This procedure will improve field reliability and, thereby, increase combat capability. When properly applied, ESS quickly precipitates latent defects to failure without damaging equipment. Air Force ESS policy requires that electronic equipment manufacturing and repair processes begin with high-quality piece parts as measured by a defective rate of 100 parts/million or less. The policy calls for a minimum of thermal and random vibration screening during various stages of the manufacturing process according to a baseline ESS regimen. Alternative regimens are permissible provided they are as effective as the baseline regimen in reducing premature failures in the field. This paper discusses ESS theory as it relates to Air Force policy and also outlines a graphical technique for illustrating the effectiveness of ESS regimens based on field experience.


1988 ◽  
Vol 13 (1) ◽  
pp. 63-68 ◽  
Author(s):  
R P Singh ◽  
Janak Pandey

Do Indian organizations use fear of punishment rather than rewarding achievement of extraordinary results, initiative, and enterprise? Have they so routinized employee rewards that they do not use this important instrument for influencing organizational behaviour and processes? Does this organizational choice of the bases of power emanate from our societal value system? Based on a questionnaire study of 250 employees of a large electronic equipment manufacturing public undertaking, Professors R P Singh and Janak Pandey raise these questions for our examination.


2011 ◽  
Vol 02 (06) ◽  
pp. 675-682 ◽  
Author(s):  
Massimo Delfini ◽  
Mauro Ferrini ◽  
Andrea Manni ◽  
Paolo Massacci ◽  
Luigi Piga ◽  
...  

Author(s):  
Vishwaraj K. Mhalshekar ◽  
Rudra Prasad Kunkolienkar ◽  
Saideep Deepak Naik ◽  
Eli Jonathan Rodrigues ◽  
Pradeep Singh Chauhan ◽  
...  

Background: Electronic equipment manufacturing units are among the most common industries all over the world. It involves a large amount of employees required for processing, manufacturing, building and setting up electronic equipments. Workers are usually sedentary and involve very less physical movement. Chronic illnesses are common among these sedentary workers of which most important are cardiovascular diseases, hypertension, obesity and diabetes. Considering the importance of the subject and the lack of published evidence on health status of electronic manufacturing workers, our study was done with an aim of assessing selected morbidities among electronic equipment manufacturing units in Goa.Methods: Our retrospective record based cross-sectional study was conducted over a period of one month in March 2019. The study was done in electronic equipment manufacturing workers. Data included sociodemographic details of the workers and details of periodic medical check-up. The data analysis was done using and analyzed using SPSS version 22. Chi square test was used to assess association between qualitative variables.Results: Among the 109 electronic manufacturing workers, it was observed that 10.1% (11) had obesity with a BMI >30, 24.8% (27) had hypertension (>140/90) and 31.2% (34) had diabetes mellitus with HbA1c >6.5. In addition, 24.8% (27) had far vision defect and 39.4% (43) had near vision defect. 42.2% (46) had abnormal lung function tests, 0.9% (1) had hearing disability and 4.6% (5) had abnormal ECG findings. Among male workers 0.9% (1) had elevated PSA levels, whereas all PAPs smear reports were normal among female workers.Conclusions: This study highlights the need of periodic medical check-up of the electronic manufacturing workers for timely detection and early management of their health problems. 


Author(s):  
Louison Poudelet ◽  
Anna Castellví ◽  
Laura Calvo

AbstractThis chapter will describe the activity of Fenix project that consisted in developing the hardware, infrastructure and processes to make possible the re-use of the recycled metals through an Additive Manufacturing (AM) method called Direct Ink Writing (DIW). It will first explain what is DIW and why it is an interesting way to give added value to recycled materials specially metals. It will then focus on the working principles and the parts of a DIW machine and end with a conclusion of the adequacy of this technology to new circular business models for the recycling of Waste of Electric and Electronic Equipment (WEEE).


Author(s):  
M. Shlepr ◽  
C. M. Vicroy

The microelectronics industry is heavily tasked with minimizing contaminates at all steps of the manufacturing process. Particles are generated by physical and/or chemical fragmentation from a mothersource. The tools and macrovolumes of chemicals used for processing, the environment surrounding the process, and the circuits themselves are all potential particle sources. A first step in eliminating these contaminants is to identify their source. Elemental analysis of the particles often proves useful toward this goal, and energy dispersive spectroscopy (EDS) is a commonly used technique. However, the large variety of source materials and process induced changes in the particles often make it difficult to discern if the particles are from a common source.Ordination is commonly used in ecology to understand community relationships. This technique usespair-wise measures of similarity. Separation of the data set is based on discrimination functions. Theend product is a spatial representation of the data with the distance between points equaling the degree of dissimilarity.


1952 ◽  
Vol 44 (3) ◽  
pp. 449-449
Author(s):  
Rudolph Allgeier ◽  
Reuben Wisthoff ◽  
Frank Hildebrandt

Sign in / Sign up

Export Citation Format

Share Document