Results 41 to 50 of about 77,687 (294)

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Métodos para quantificar a volatilização de N-NH3 em solo fertilizado com uréia [PDF]

, 2015
As perdas gasosas nitrogenadas, principalmente por volatilizacao, sao consideraveis em diversas atividades agropecuarias, como na adubacao de pastagens. A utilizacao de metodos simples e acessiveis para mensurar essas perdas e de extrema necessidade na avaliacao do ciclo de N nesses sistemas. Assim, o objetivo desse trabalho foi determinar metodos para
openaire   +1 more source

Correlation Analysis between the Aeration and the COD and the N-NH3 by Float Packing Method

DEStech Transactions on Environment, Energy and Earth Science, 2017
This passage had collect the dates of 2010-2014 of Z Sewage treatment plant located in Shenyang city. Analyzed the correlation between the reduction of the COD and the aeration, the correlation between the reduction of the ammonia and the aeration.
Xue-Hao ZHENG, Xiao-Wei HAN, Hong-Ling ZHANG, Dong-Zheng WANG   +3 more
openaire   +1 more source

Padrão de fermentação das silagens de seis genótipos de milho. [PDF]

, 2018
Foram avaliados os padroes de fermentacao das silagens de seis genotipos de milho plantados na EMBRAPA Milho e Sorgo. Os silos experimentais foram abertos com um, tres, cinco, sete, 14 e 28 dias apos ensilagem.
ANTUNES, R. C., BORGES, A. L. C. C., BORGES, I., COSTA, R. S., GONCALVES, L. C., REIS, R. B., RODRIGEUZ, N. M., RODRIGUES, J. A. S.   +7 more
core  

Temperature and kinematics of protoclusters with intermediate and high-mass stars: the case of IRAS 05345+3157

, 2012
We have mapped at small spatial scales the temperature and the velocity field in the protocluster associated with IRAS 05345+3157, which contains both intermediate-/high-mass protostellar candidates and starless condensations, and is thus an excellent ...
Aikawa, Aina Palau, André, Arce, Bachiller, Bergin, Beuther, Beuther, Busquet, Busquet, Busquet, Caselli, F. Fontani, Flower, Fontani, Fontani, Fontani, Forbrich, Foster, Friesen, Friesen, G. Busquet, Harju, Hasegawa, Hily-Blant, Ho, Hotzel, J. Brand, Keto, Klein, Lee, Leurini, McKee, McKee, Millar, Molinari, Nakamura, P. Caselli, Palau, Palau, Peters, Pillai, Pineda, Pineda, Q. Zhang, Ragan, Rathborne, Schnee, Shen, Tafalla, Varricatt, Wang, Ward-Thompson, Wu, Zhang, Zhang   +55 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Field efficacy of urease inhibitors for mitigation of ammonia emissions in agricultural field settings: a systematic review

Frontiers in Environmental Science
Globally, ammonia (NH3) is one of the key air pollutants and reducing NH3 emissions and the associated indirect emission of the greenhouse gas nitrous oxide remains challenging for the agricultural sector.
Dumsane Themba Matse, Dominika J. Krol, Karl G. Richards, Martin Danaher, Enda Cummins, Xin Wang, Patrick J. Forrestal   +6 more
doaj   +1 more source

Volatilização de N-NH3 na cultura de milho:: II. avaliação de fontes sólidas e fluidas em sistema de plantio direto e convencional [PDF]

Revista Brasileira de Ciência do Solo, 1997
Foram desenvolvidos dois experimentos em campo, em sistema de plantio direto (SPD) sobre cobertura de aveia-preta, em latossolo vermelho-escuro, distrófico, argiloso, e em sistema de plantio convencional (SPC), após cultivo de soja, em latossolo vermelho-amarelo distrófico arenoso, no Centro de Pesquisa Novartis-Seeds e na Fazenda Stª.
Cabezas, W.A.R. Lara, Korndorfer, G.H., Motta, S.A.   +2 more
openaire   +4 more sources

Perfil fermentativo das silagens de seis genótipos de sorgo ("Sorghum bicolor (L.) Moench. ") 1. MS; PB; N-NH3 e pH. [PDF]

, 2018
O presente trabalho teve como objetivo estudar o efeito do intervalo de abertura de silos sobre o perfil fermentativo de silagens de seis genótipos de sorgo (BR 700, BRS 610, 0249311, 0249313,0249345 e 0249351).
BORGES, A. L. C. C., BORGES, I., CARVALHO, W. T. V., GONÇALVES, L. C., IBRAHIM, G. H. F., POSSAS, F. P., RIBAS, M. N., RODRIGUES, J. A. S., RODRIGUEZ, N. M.   +8 more
core  

Influencia de la calidad del heno suplementario y la localización de la pastura sobre el rendimiento de bovinos de carne a pastoreo sobre avena [PDF]

, 2004
Heifers grazing oat pasture (OP) at two locations in Argentina, Argerich (ARG) and Pasman (PAS), were subjected to one of three different dietary supplement treatments: (1) control (CON, no supplement), (2) sorghum hay (SH), or (3) alfalfa-grass hay (AGH)
Arelovich, Hugo Mario, Arzadún, M. J., Laborde, Hugo Eduardo, Vasquez, Maria Gabriela   +3 more
core   +1 more source