نتایج جستجو برای: wco

تعداد نتایج: 190  

2015
Rean Maharaj Vitra Ramjattan-Harry Nazim Mohamed

The influence of waste cooking oil (WCO) on the performance characteristics of asphaltic materials indigenous to Trinidad, namely, Trinidad Lake Asphalt (TLA), Trinidad Petroleum Bitumen (TPB), and TLA : TPB (50 : 50) blend, was investigated to deduce the applicability of the WCO as a performance enhancer for the base asphalt. The rheological properties of complex modulus (G (∗) ) and phase ang...

2017
Dong Zhang Meizhu Chen Shaopeng Wu Jingxiang Liu Serji Amirkhanian

Waste cooking oil (WCO), in many cases, can rejuvenate aged asphalt and restore its properties. However, the influence of WCO qualities on rejuvenation behaviors of aged asphalt has not been investigated in detail. The objective of this paper was to evaluate the effects of WCO viscosity and acid value on the basic, rheological, and chemical properties of a typical rejuvenated asphalt. Penetrati...

2015
Qi-Qi Zhang Bang-Xin Cai Wen-Jie Xu Hong-Ze Gang Jin-Feng Liu Shi-Zhong Yang Bo-Zhong Mu

Waste cooking oil (WCO) is a kind of non-edible oil with enormous quantities and its unreasonable dispose may generate negative impact on human life and environment. However, WCO is certainly a renewable feedstock of bio-based materials. To get the rebirth of WCO, we have established a facile and high-yield method to convert WCO to bio-based zwitterionic surfactants with excellent surface and i...

2005
Raluca Marin-Perianu Hans Scholten Paul Havinga

This paper introduces CODE, a Description Language for Wireless Collaborating Objects (WCO), with the specific aim of enabling service management in smart environments. WCO extend the traditional model of wireless sensor networks by transferring additional intelligence and responsibility from the gateway level to the network. WCO are able to offer complex services based on cooperation among sen...

2006
Hanna Kurniawati David Hsu

This paper presents Workspace-based Connectivity Oracle (WCO), a new sampling strategy for probabilistic roadmap planning. WCO uses both domain knowledge—specifically, workspace geometry—and sampling history to construct a dynamic sampling distribution. WCO is composed of many component samplers, each based on a geometric feature of a robot. Each component sampler updates its distribution, usin...

H. A. Aziz L. Mohajeri, M. A. Zahed M. H. Isa S. Mohajeri

Bioremediation, the process by which microorganisms degrade organic compounds to non-toxic or less toxic substances, has been widely used for cleanup of coastal ecosystems after oil spills. In this study, the hydrocarbon degradation rate and half lives in three bioremediation strategies (natural attenuation, biostimulation, and bioaugmentation) were compared in weathered crude oil (WCO) contami...

2015
Sanjib Kumar Karmee Raffel Dharma Patria Carol Sze Ki Lin

Fossil fuel shortage is a major challenge worldwide. Therefore, research is currently underway to investigate potential renewable energy sources. Biodiesel is one of the major renewable energy sources that can be obtained from oils and fats by transesterification. However, biodiesel obtained from vegetable oils as feedstock is expensive. Thus, an alternative and inexpensive feedstock such as wa...

2017
Sheng-Lun Lin Jen-Hsiung Tsai Shui-Jen Chen Kuo-Lin Huang Chih-Chung Lin Ho-Tsang Huang Yi-Chin Hsieh Chuen-Huey Chiu

This study investigates the emission of a heavy-duty diesel engine generator fueled with waste cooking oil (WCO)based biodiesel blends (W) and operated at 1.5 and 3.0 kW loads. A brand of pure fossil diesel was adopted as the base fuel, with 20% and 40% WCO-based biodiesel added into the based fuel to form W20 and W40 blends, respectively. The emission characteristics of PM, metals and PAHs wer...

ژورنال: بهداشت و توسعه 2017
جدیدیان, محبوبه, جعفری منصوریان, حسین, صابری بیدگلی, محمد, فهیمی‌نیا, محمد, مجیدی, غریب,

مقدمه: این مطالعه با هدف امکان‌سنجی فنی بازیافت پسماند روغن‌های خوراکی (WCO) تولیدشده در شهر قم به سوخت بیودیزل انجام شد. روش‌ها: تحقیق حاضر به صورت مقطعی در بازه زمانی شش ماهه اول سال 1392 در شهر قم انجام شد. پس از شناسایی و انتخاب 147 واحد خانگی، صنعتی و تجاری تولید WCO، از آن‌ها خواسته شد تا WCO تولیدی خود را در طول یک هفته جمع‌آوری و تحویل دهند. نمونه‌های به دست آمده به صورت مجزا با...

2015
Guihong Lan Qiang Fan Yongqiang Liu Yu Liu Yucheng Liu Xiaobo Yin Mina Luo

The present work aims to investigate the effects of the addition of waste cooking oil (WCO) on heavy crude oil biodegradation and microbial enhanced oil recovery (MEOR) using Pseudomonas sp. SWP-4. Growth kinetics show Pseudomonas sp. SWP-4 had a maximum dry cell weight of 1.73 g/L and cell-surface hydrophobicity of 62.4% against n-hexadecane when degraded the crude oil with the addition of WCO...

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