نتایج جستجو برای: recycling materials

تعداد نتایج: 462427  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Tianran Chen Wei-Liang Chen Benjamin J Foley Jooseop Lee Jacob P C Ruff J Y Peter Ko Craig M Brown Leland W Harriger Depei Zhang Changwon Park Mina Yoon Yu-Ming Chang Joshua J Choi Seung-Hun Lee

Long carrier lifetime is what makes hybrid organic-inorganic perovskites high-performance photovoltaic materials. Several microscopic mechanisms behind the unusually long carrier lifetime have been proposed, such as formation of large polarons, Rashba effect, ferroelectric domains, and photon recycling. Here, we show that the screening of band-edge charge carriers by rotation of organic cation ...

2014
Antonio Greco Mariaenrica Frigione Alfonso Maffezzoli Alessandro Marseglia Alessandra Passaro

This work is aimed to present an innovative technology for the reinforcement of beams for urban furniture, produced by in-mold extrusion of plastics from solid urban waste. This material, which is usually referred to as "recycled plastic lumber", is characterized by very poor mechanical properties, which results in high deflections under flexural loads, particularly under creep conditions. The ...

2017
Purabi R. Ghosh Derek Fawcett Shashi B. Sharma Gerrard E. J. Poinern

The quantities of organic waste produced globally by aquacultural and horticulture are extremely large and offer an attractive renewable source of biomolecules and bioactive compounds. The availability of such large and diverse sources of waste materials creates a unique opportunity to develop new recycling and food waste utilisation strategies. The aim of this review is to report the current s...

2001
Shisheng WU Yoshitaka HACHIYA Koichi SUGIMOTO

Recycling of asphalt concrete is increasingly used as a major rehabilitation method in Japan because it can conserve natural resources, reduce costs and save energy. In this study, reclaimed asphalt concrete from Tokyo International Airport was evaluated for use in four types of base materials: recycled granular material, recycled cement stabilized material, recycled cement-emulsified asphalt s...

Journal: :Journal of environmental management 2005
R Woodard M Bench M K Harder

Local authorities in the UK have been set challenging new targets for recycling household waste for 2003/4. This means many of them are urgently trying to determine which parameters in kerbside schemes are most important for increasing recycling rates. In this work information from previous kerbside schemes was used to plan significant improvements in an existing scheme in Horsham District, UK,...

2015
Avelino Núñez-Delgado María José Fernández-Sanjurjo Esperanza Álvarez-Rodríguez Laura Cutillas-Barreiro JuanCarlos Nóvoa-Muñoz Manuel Arias-Estévez Oladele A. Ogunseitan

The objective of this work was to study Cr(VI) sorption/desorption on two by-products from the wood industry: pine sawdust and oak wood ash. The retention/release experiments were carried out using standard batch-type trials. In the sorption-phase experiments, pine sawdust showed 23% sorption when a concentration of 100 mg Cr(VI)ŸL-1 was added, whereas sorption on oak wood ash was 17%. In the d...

Journal: :Journal of hazardous materials 2007
Vivian W Y Tam Khoa N Le

Recycled aggregate (RA) has been used in various construction applications around the world mainly as sub-grade, roadwork and unbound materials, but not in higher-grade applications. The major barrier encountered is the variation of quality within RA, which causes lower strength, and poorer quality. This work studies the relationships among six parameters describing the characteristics of RA: (...

2009
Adam R. Fremeth

Executive Overview Today, it is undeniable that a new enthusiasm exists for green management, not only among managers but among business school students, though this enthusiasm is just starting to be tapped in a more formal way in curriculum, instructional materials, and faculty careers and advancement. Green management matters for many reasons, but fundamentally it matters because people expec...

2018
Catarina Brazão Farinha Jorge de Brito Rosário Veiga J M Fernández J R Jiménez A R Esquinas

The production of waste has increased over the years and, lacking a recycle or recovery solution, it is forwarded to landfill. The incorporation of wastes in cement-based materials is a solution to reduce waste deposition. In this regard, some researchers have been studying the incorporation of wastes with different functions: aggregate, binder and addition. The incorporation of wastes should t...

ژورنال: سلامت و محیط زیست 2017
دهقانی, محمدهادی, مومنی, منصور, نادری, مازیار, نبی زاده نودهی, رامین, پاست, ویدا, یغمائیان, کامیار,

Background and Objective: Environmental pollution due to dumping construction and demolition wastes has adverse effects on public health. This study aimed to select the best method for managing construction and demolition wastes disposal in Tehran by AHP. Materials and Methods: This research was a descriptive study. The study population consisted of environmental health experts in the field of...

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