Results 91 to 100 of about 72,620 (314)

Food inflation pass‐through from agricultural imports in a small open economy

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper develops a new framework for quantifying cost pass‐through in a small open economy by estimating firm‐level markup responses to agricultural import price shocks. We show theoretically that markup adjustments depend on firms' reliance on imported inputs and demand curvature, generating heterogeneous inflationary effects across firm ...
Minseong Kang, Seungki Lee
wiley   +1 more source

Utilization of Used Vegetable Oil as a Biodiesel Fuel

open access: yes, 2020
In this study the reusing of vegetable oil as an alternative substitute for biodiesel was investigated. The used vegetable oil (UVO) was obtained from Baraka Factory – Potato chips line, Wad Madani, Sudan.
Yassin, Atif A.A.   +3 more
core  

Emission Characteristics of a CI Engine Running with a Range of Biodiesel Feedstocks

open access: yes, 2014
Currently, alternative fuels are being investigated in detail for application in compression ignition (CI) engines resulting in exciting potential opportunities to increase energy security and reduce gas emissions.
Gu, Fengshou   +7 more
core   +1 more source

Lost in aggregation? On the importance of local food price data for food poverty estimates

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper explores within‐country variations in food price dynamics and food poverty estimates by employing local market price data and national consumer price index (CPI) data. Our results show that national CPI data may be useful for approximating national trends but they fail to detect and identify spatial variations in local trends, which
Stephan Dietrich   +4 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

The use of antioxidants in vegetable oils – A review

open access: yesAfrican Journal of Biotechnology, 2010
The shelf life of vegetable oils in food uses and their applicability in industrial situations is greatly dependent on their oxidative stabilities. Methods of improving oxidative stability values currently available include genetic modifications, compositional changes via chemical means, as well as the inhibition of oxidation by means of substances ...
Aluyor, EO, Ori-Jesu, M
openaire   +1 more source

On the use of dielectric spectroscopy for quality control of vegetable oils [PDF]

open access: yes, 2009
Quality control of vegetable oils is becoming more stringent, and related laws are being enforced especially for avoiding adulteration. As a result, there is a substantial need for methods of analysis that could provide real-time in-situ monitoring, especially for quality control purposes during production process.
CATALDO, Andrea Maria   +4 more
openaire   +2 more sources

Performance and emissions of compression ignition engines using waste cooked oil as fuel

open access: yes, 2010
Public and Government concern about environmental pollution and the high price of petroleum products have forced the development of alternative fuels for automotive applications.
Algasim, Hamad, Fieldhouse, John D.
core  

Using hydrotalcite for biodiesel production [PDF]

open access: yes, 2009
Different parameters that can modify the extension of the transesterification reaction have been evaluated, such as, reaction temperature, agitation speed, methanol:oil molar ratio, percentage of solid catalyst presents in the reaction medium and ...
Labarta, Juan A.   +3 more
core  

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  

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