Results 21 to 30 of about 450,166 (309)

Changes of Volatile Components in Cigar Wrapper During Deep Fermentation

open access: yesGuangdong nongye kexue, 2022
【Objective】At present, the effect of deep fermentation on the quality of cigar tobacco leaves is still unclear, and volatile components are important factors affecting the sensory quality of cigars.
Fengfeng LIU   +7 more
doaj   +1 more source

An approach to the use of fixed carbon-volatile matter graph [PDF]

open access: yes, 1986
The use of the fixed carbon-volatile matter (FC-VM) graph for quick calculations of proximate analysis data, as well as for simple presentation of coal classification is illustrated. From the position of the VM and FC values of a coal on the graph (on an
Jankes, Goran, Radovanović, Milan
core   +2 more sources

Pyrolisator Coal to be Cokes (Coal Cokes) Casting Metal Industry Standard

open access: yesMATEC Web of Conferences, 2016
Pyrolisis of coal is partial combustion to reduce total moisture, volatile matter and sulfur contens and increase the calorific value of coal. The results of pyrolysis of coal is coke.
Sukamto   +3 more
doaj   +1 more source

Aid, Volatility, and Growth Again: When Aid Volatility Matters and When it Does Not [PDF]

open access: yesReview of Development Economics, 2009
AbstractIn previous papers the authors have argued that aid is likely to mitigate the negative effects of external shocks on economic growth (i.e. that aid is more effective in countries which are more vulnerable to external shocks). Recently an important debate has emerged about the possible negative effects of aid volatility itself.
Chauvet, Lisa, Guillaumont, Patrick
openaire   +7 more sources

Air Pollution in the Valparaiso Area [PDF]

open access: yes, 2020
Volatile Organic Compounds (VOC’s) and particulate matter (PM) have been serious air pollution concerns around the world, particularly where industries and high volume traffic is present. These pollutants have been shown to have a negative effect on most
Burns, Meghanne   +7 more
core   +1 more source

Informality and macroeconomic volatility: do credit constraints matter? [PDF]

open access: yesJournal of Economic Studies, 2015
Purpose– The purpose of this paper is to study the implications of borrowing constraints characterizing the informal sector for macroeconomic volatility.Design/methodology/approach– To this end, the author develops a simple dynamic stochastic general equilibrium model wherein registered activity not only is the basis to determine tax liabilities, but ...
openaire   +3 more sources

Kinetic multi-layer model of aerosol surface and bulk chemistry (KM-SUB): the influence of interfacial transport and bulk diffusion on the oxidation of oleic acid by ozone [PDF]

open access: yes, 2010
We present a novel kinetic multi-layer model that explicitly resolves mass transport and chemical reaction at the surface and in the bulk of aerosol particles (KM-SUB). The model is based on the PRA framework of gas–particle interactions (P¨oschl et al.
Pfrang, C., Poschl, U., Shiraiwa, M.
core   +2 more sources

Quantitative Analysis of the Influence of Volatile Matter Content in Coal Samples on the Fractal Dimension of Their Nanopore Characteristics

open access: yesApplied Sciences
As a crucial energy source and chemical raw material, coal’s micro-pore structure holds a pivotal influence on the occurrence and development of coalbed methane (CBM).
Lin Sun   +5 more
doaj   +1 more source

Risk Matters: The Real Effects of Volatility Shocks [PDF]

open access: yesAmerican Economic Review, 2009
We show how changes in the volatility of the real interest rate at which small open emerging economies borrow have an important effect on variables like output, consumption, investment, and hours. We start by documenting the strong evidence of time-varying volatility in the real interest rates faced by four emerging economies: Argentina, Brazil ...
Jesus Fernandez-Villaverde   +3 more
openaire   +6 more sources

The impact of hydrothermal carbonisation on the char reactivity of biomass [PDF]

open access: yes, 2018
Hydrothermal carbonisation (HTC) is an attractive biomass pre-treatment as it produces a coal-like fuel, can easily process wet biomass and wastes, and lowers the risk of slagging and fouling in pulverised fuel (PF) combustion boilers.
Meredith, Will   +2 more
core   +2 more sources

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