E-Waste Stream Analysis and Design Implications

2011 ◽  
Vol 133 (10) ◽  
Author(s):  
Minjung Kwak ◽  
Sara Behdad ◽  
Yuan Zhao ◽  
Harrison Kim ◽  
Deborah Thurston
Keyword(s):  
Product Design ◽  
Potential Role ◽  
Waste Stream ◽  
Waste Collection ◽  
Waste Recovery ◽  
Analysis And Design ◽  
Multiple Generations ◽  
Incoming Stream ◽  
Take Back

The quantity and age of the incoming stream of “feedstock” from product take-back systems are known as the major sources of the uncertainty that complicates the e-waste recovery. This paper presents the results of an analysis of data from an incoming stream for an e-waste collection center and analyzes the quantity and age of e-waste by product type and brand. The analysis results point out receiving of outdated products and processing of multiple generations, and brands of products at the same time are among main obstacles to the e-waste recovery. The potential role of product design in overcoming those obstacles is discussed with emphasis on design for upgrade, repurpose, and commonality.

E-Waste Stream Analysis and Design Implications

2010 ◽  
Author(s):  
Sara Behdad ◽  
Minjung Kwak ◽  
Yuan Zhao ◽  
Harrison Kim ◽  
Deborah Thurston
Keyword(s):  
Waste Stream ◽  
Future Research ◽  
Research Needs ◽  
Analysis And Design ◽  
Incoming Stream ◽  
Design For Sustainability ◽  
Take Back

The problem addressed in this paper is that the incoming stream of “feedstock” from product take-back systems is known to be widely variable, but the type and extent of that variability have not been well defined. This paper presents an analysis of data from an incoming e-waste stream for a computer refurbisher, and analyzes the type and degree of variability. The implications for design for sustainability are presented, along with a discussion of suggested future research needs.

scholarly journals Automatic Waste Collection & Segregation

2021 ◽  
Vol 9 (VII) ◽  
pp. 1361-1366
Author(s):  
Rehan Shaikh
Keyword(s):  
Waste Disposal ◽  
High Potential ◽  
Pivotal Role ◽  
Occupational Hazards ◽  
Waste Collection ◽  
Waste Recovery ◽  
The World ◽  
Waste Segregation

Rapidly growing urbanization and increasing population in all over the world, causing dynamic increase in the amount of waste disposal. Dumping of waste has become a matter of concern all over the world because of the threat to the environment. There comes the pivotal role of the automatic waste segregation system which avoid this unfortunate situation and it also reduces the difficulty of recycling. Currently there is no such system for segregation of metal, dry, and wet waste. This work proposes a On spot automatic waste segregation system that gives the solution to this problem. The benefits of this work are, high potential for waste recovery and the occupational hazards of waste separating workers also reduces.

scholarly journals Strategy to Increase Waste Handling Quantity and Quality Services and Waste Recovery, and to Decrease Uncontrolled Waste Flow into Environment (Indonesia cases)

2018 ◽  
Author(s):  
Enri Damanhuri
Keyword(s):  
Action Plan ◽  
Disposal Site ◽  
Waste Collection ◽  
Waste Recovery ◽  
Open Dumping ◽  
Waste Flow ◽  
Waste Separation ◽  
Waste Handling ◽  
The City

Waste amounts increased rapidly with economic growth. Not all of the waste generated are collected by municipalities due to their ‘limited’ capacity. Most of the formal waste collection are initiated, managed and operated by community (role of RTs/RWs). Almost of the cities in Indonesia rely on landfilling technology to dispose their waste collected. Land for new waste disposal sites for MSW is becoming difficult. Most of the landfilling process is open dumping. Improvement of waste management is a key focus of the strategy.Some cities may have set a goal of reducing the amount of waste recovery and waste disposed off at the final disposal site in a target year.To achieve this, the city needs to measure based on an action plan that includes both community-based activities and the city government’s efforts to increase waste collection, and to introduce waste separation at home and operation of an intermediate treatment facility for waste reduction. The focus of the strategy should be: 1.How to increase the waste collection rate and services and to improve its quality2.How to increase the waste recovery and to improve the quality of recyclable materials3.How to reduce the uncontrolled waste (and its ‘derivatives’) flows into environment

POPDC proteins and cardiac function

2019 ◽  
Vol 47 (5) ◽  
pp. 1393-1404 ◽  
Author(s):  
Thomas Brand
Keyword(s):  
Potential Role ◽  
Striated Muscle ◽  
Short Review ◽  
Effector Proteins ◽  
Muscle Disease ◽  
Disease Genes ◽  
Protein Protein Interaction ◽  
Interaction Partners ◽  
And Function

Abstract The Popeye domain-containing gene family encodes a novel class of cAMP effector proteins in striated muscle tissue. In this short review, we first introduce the protein family and discuss their structure and function with an emphasis on their role in cyclic AMP signalling. Another focus of this review is the recently discovered role of POPDC genes as striated muscle disease genes, which have been associated with cardiac arrhythmia and muscular dystrophy. The pathological phenotypes observed in patients will be compared with phenotypes present in null and knockin mutations in zebrafish and mouse. A number of protein–protein interaction partners have been discovered and the potential role of POPDC proteins to control the subcellular localization and function of these interacting proteins will be discussed. Finally, we outline several areas, where research is urgently needed.

The Effect of Path Length and Display Size on Memory for Spatial Information

2012 ◽  
Vol 59 (3) ◽  
pp. 147-152 ◽  
Author(s):  
Katherine Guérard ◽  
Sébastien Tremblay
Keyword(s):  
Path Length ◽  
Potential Role ◽  
Spatial Information ◽  
Recall Performance ◽  
Minor Role ◽  
Length Effect ◽  
Serial Memory ◽  
Fixed Reference ◽  
A Minor

In serial memory for spatial information, some studies showed that recall performance suffers when the distance between successive locations increases relatively to the size of the display in which they are presented (the path length effect; e.g., Parmentier et al., 2005) but not when distance is increased by enlarging the size of the display (e.g., Smyth & Scholey, 1994). In the present study, we examined the effect of varying the absolute and relative distance between to-be-remembered items on memory for spatial information. We manipulated path length using small (15″) and large (64″) screens within the same design. In two experiments, we showed that distance was disruptive mainly when it is varied relatively to a fixed reference frame, though increasing the size of the display also had a small deleterious effect on recall. The insertion of a retention interval did not influence these effects, suggesting that rehearsal plays a minor role in mediating the effects of distance on serial spatial memory. We discuss the potential role of perceptual organization in light of the pattern of results.

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