Results 31 to 40 of about 323,918 (260)

Effect of Fluctuating Aerosol Concentrations on the Aerosol Distributions in a Turbulent Jet

Aerosol and Air Quality Research, 2020
We apply the Reynolds averaging method to derive the averaged particle general dynamic equation (APGDE), which models the effect of fluctuations in aerosol concentrations on coagulation, referred to as the fluctuating coagulation term (FCT), based on the
Hailin Yang, Jianzhong Lin, Tatleung Chan   +2 more
doaj   +1 more source

Evolution of Aerosol Particles in the Rainfall Process via Method of Moments

Abstract and Applied Analysis, 2013
The method of moments is employed to predict the evolution of aerosol particles in the rainfall process. To describe the dynamic properties of particle size distribution, the population balance equation is converted to moment equations by the method of ...
Fangyang Yuan, Fujun Gan
doaj   +1 more source

Effects of corn particle size and physical form of the diet on the gastrointestinal structures of broiler chickens

Brazilian Journal of Poultry Science, 2003
The objective of this experiment was to investigate the effects of different particle sizes, expressed as Geometric Mean Diameter (GMD) of corn (0.336mm, 0.585mm, 0.856mm and 1.12mm) of mash and pelleted broiler chicken diets on the weight of the gizzard,
F Dahlke, AML Ribeiro, AM Kessler, AR Lima, A Maiorka   +4 more
doaj   +1 more source

Comparative analysis of the physical properties of two varieties of periwinkle relevant to the design of processing equipment

Research in Agricultural Engineering, 2021
The physical properties of agricultural products are essential in designing machines, equipment, and systems for efficient processing operations. Two periwinkle varieties, viz Tympanotonus fuscatus (Linnaeus, 1758) and Pachymelania aurita O. F.
Inemesit Edem Ekop, Kayode Joshua Simonyan, Udochukwu Nelson Onwuka   +2 more
doaj   +1 more source

Asteroid lightcurves from the Palomar Transient Factory survey: Rotation periods and phase functions from sparse photometry [PDF]

, 2015
We fit 54,296 sparsely-sampled asteroid lightcurves in the Palomar Transient Factory to a combined rotation plus phase-function model. Each lightcurve consists of 20+ observations acquired in a single opposition.
Chang, Chan-Kao, Cheng, Yu-Chi, Helou, George, Ip, Wing-Huen, Kinoshita, Daisuke, Kulkarni, Shrinivas, Laher, Russ, Levitan, David, Masci, Frank, Ofek, Eran O., Prince, Thomas A., Surace, Jason, Waszczak, Adam   +12 more
core   +2 more sources

The relation between the geometric parameters of grinding powders grains measured by laser diffraction and light-microscopical methods

MATEC Web of Conferences, 2018
The studies were conducted on grinding powders of black silicon carbide with F180-F60 grit produced by Volzhsky Abrasive Plant. The length, width, perimeter, area and reduced diameter of the grain area were determined by light-microscopical method, the ...
Nosenko Vladimir A., Aleksandrov Alexey A.   +1 more
doaj   +1 more source

Agregação de ume nitossolo vermelho distroférrico sob sistemas de plantio direto, preparo convencional e mata nativa Aggregation in a distroferric red nitosol under no-till, conventional tillage, and native forest systems

Engenharia Agrícola, 2010
O presente estudo teve como objetivo avaliar o efeito do tempo de adoção do sistema plantio direto, comparativamente com área de mata nativa e preparo convencional, utilizando a distribuição de agregados do solo em um Nitossolo Vermelho distroférrico. Os
Renato L. de Assis, Kléber P. Lanças
doaj   +1 more source

On the Influence of Geometric Parameters of a Combined Orifice Valve on the Attainable Mean Droplet Diameter during High-Pressure Homogenization

Engineering in Life Sciences, 2002
In order to meet the demands of the pharmaceutical and cosmetic industry for decreasing emulsion droplet sizes, new dispersing units are consistently developed. To obtain optimal results, thus the smallest possible droplet diameter and a narrow droplet size distribution at smallest possible energy input, the geometric parameters of a new dispersing ...
S. Schultz, G. Wagner, J. Ulrich
openaire   +1 more source

Phosphorus and Microbial Degradation Mediate Vegetation-Induced Macroaggregate Dynamics on the Loess Plateau, China

Agronomy
Vegetation restoration enhances soil erosion resistance by enhancing soil aggregates, but the function of these aggregates and their relationship with soil nutrients and microbes remain unclear.
Ningning Zhang, Pandeng Cao, Zhi Wang, Jiakun Yan   +3 more
doaj   +1 more source

Diameter versus girth: which variable provides the best estimate of the cross-sectional area?

Forest Systems, 2015
Aim of study: Cross-sectional area is one of the most important forest inventory variable since it is highly correlated with growth and yield at both tree and stand levels.
Francisco Rodríguez, Ricardo Blanco, Álvaro Aunós   +2 more
doaj   +1 more source