Results 101 to 110 of about 354,904 (309)

Natural Polarization and Electrooptics Comparison for Evaluation of Cooking Oil Total Quality [PDF]

open access: yes, 2014
In this study, the phenomena of natural polarization and electrooptics effect have been compared as alternative methods for evaluation of vegetable oil quality. The sample used in the experiment was various vegetable oils.
Firdausi, K. S. (Ketut)   +1 more
core  

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Socioenvironmental implications of Jatropha curcas cultivation for biodiesel supply in postmining communities

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The long‐term viability of Jatropha curcas as a biodiesel feedstock has been widely debated. Many early initiatives failed to deliver consistent economic returns despite promising environmental attributes. This study re‐evaluated J. curcas‐based systems within an integrated environmental–economic framework, focusing on their potential role in ...
Eduardo Sansão Sozinho Maurício   +3 more
wiley   +1 more source

A Highly Inhibitive Vegetable Oil-Based Drilling Fluid

open access: yesZuanjingye yu wanjingye
This study aims at finding a more environmentally friendly and efficient oil-based drilling fluid to reduce drilling costs, to minimize the negative effects of the drilling fluid on the environment, to enhance the safety and quality of drilling operation,
Hua XIAO   +6 more
doaj   +1 more source

Peningkatan Efikasi Cendawan Lecanicillium Lecanii Untuk Mengendalikan Telur Hama Kepik Coklat Pada Kedelai [PDF]

open access: yes, 2011
Lecanicillium lecanii is considered as an effective entomopathogenic fungi to control eggs of brown stink bug on soybean. Its efficacy is indicated by reducing the level of hatching of brown stink bug eggs.
Kartosuwondo, U. (Utomo)   +3 more
core  

Think Global, Act Local? Fortune 500 Business Strategies for Sustainable Cities and Communities (SDG 11)

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The role of business towards achieving the 17 Sustainable Development Goals (SDGs) has been well established. However, SDG contextualization continues to pose a conundrum, particularly for firms operating in multiple contexts. This becomes even more problematic in the case of SDG 11, the only goal in the sustainable development agenda directly
Andreas Georgiou
wiley   +1 more source

Navigating Market Constraints: Sustainable Startups Driving Transformative Change Through Venture Creation

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This paper contributes to venture‐creation research by examining how sustainable startups can overcome market constraints to drive transformative change through their business development. Conceptually, we address this question by identifying venture‐creation narratives in the learning and experimental phases of sustainable startups that ...
Ville‐Veikko Piispanen   +2 more
wiley   +1 more source

Operation variables in transesterification of vegetable oil: an enzymatic catalysis review

open access: yesIngeniería e Investigación, 2010
This paper presents the results of a literature review regarding how operating conditions influence vegetable oil enzymatic transesterification yield. The following parameters were studied: temperature and time reaction, alcohol: oil molar ratio, alcohol
Andrés Felipe Rojas González   +2 more
doaj  

Electro-Thermal Fault Diagnosis Method of RAPO Vegetable Oil Transformer Based on Characteristic Gas and Ratio Criterion

open access: yesIEEE Access, 2019
The vegetable oil transformer has excellent fire resistance, environmentally friendly performances and electrical properties, which is the development direction of oil-filled transformer in the future.
Haoxi Cong   +3 more
doaj   +1 more source

Effect of using vegetable oils as quenching media for pure commercial aluminium [PDF]

open access: yes, 2012
This paper presents the effects of rate of heat extraction by groundnut, melon, palm kernel, shea butter and palm oils on the mechanical properties of various samples of pure commercial aluminium heat treated at 200°C, 250°C, 300°C and 350°C.
Adekunle, A. S   +2 more
core  

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