Results 91 to 100 of about 339,119 (309)

Rendimento e teores de macronutrientes em alface tipo americana em função de doses de nitrogênio e molibdênio em cultivo de verão Yield and content of macronutrients in crisphead lettuce (Lactuca sativa L.) in the summer planting as a function of nitrogen and molybdenum doses

Ciência e Agrotecnologia, 2009
Conduziu-se o trabalho, no município de Três Pontas, Sul de Minas Gerais, no período de outubro a dezembro de 2002, objetivando avaliar a influência de doses de nitrogênio e molibdênio no rendimento e teor de macronutrientes da alface americana (Lactuca ...
Geraldo M. de Resende, Marco Antônio Rezende Alvarenga, Jony Eishi Yuri, Rovilson José de Souza, José Hortêncio Mota, Janice Guedes de Carvalho, Juarez Carlos Rodrigues Júnior   +6 more
doaj   +1 more source

Heathland creation on improved grassland using sulphur: is there a conflict between optimal application rates for plant and animal communities? [PDF]

We examined the effectiveness of using elemental sulphur (a soil acidifier) as a method for creating heathland on improved pasture. We determined i) optimal rate of sulphur application to control mesotrophic grasses ii) if invertebrates avoid areas of ...
Buckland, Paul C., Diaz, Anita, Green, Iain D., Uzal Fernandez, Antonio   +3 more
core  

Archaeological Sites Along Cuthand Creek and the Sulphur River in the Mid–Sulphur River Basin, Red River County, Texas [PDF]

, 2016
The Cuthand Creek and Little Mustang Creek drainage basins in the mid–Sulphur River basin are in the Post Oak Savannah of East Texas. Prehistoric archaeological sites are abundant in both basins and along the Sulphur River, dating from as early as ...
Cheatwood, Gary W., Perttula, Timothy K.
core   +1 more source

Metal adsorption by quasi cellulose xanthogenates derived from aquatic and terrestrial plant materials [PDF]

, 2011
The FTIR spectra, SEM-EDXA and copper adsorption capacities of the raw plant materials, alkali treated straws and cellulose xanthogenate derivatives of Eichhornia crassipes shoot, rape straw and corn stalk were investigated.
Deng, Li, Ge, Xuan, Hua, Yumei, Langdon, Alan, Zhao, Jianwei, Zhou, Wenbing, Zhu, Duanwei   +6 more
core   +2 more sources

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

The sulphur and chlorine contents of grass and maize silage

Acta Agriculturae Slovenica, 2001
In seven defined samples of grass and in six samples of maize silage the contents of sulphur and chlorine were determined by two analytical procedures: both elements with X-ray fluorescence spectrometry (XRF), sulphur separately with inductively coupled ...
Marija RAJČEVIČ, Alojz VIDIC, Pavel KUBA, Marijan NEČEMER, Peter KUMP   +4 more
doaj   +1 more source

Some developments in the feeding of coal to fluidized bed combustors [PDF]

, 1977
Research is being done in the development of fluid bed combustors for high sulphur coal, using limestone or dolomite in the bed for removal of the sulphur. Operating units to date have proven the inadequacies of available material handling techniques for
Caldwell, L. G.
core   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source