Results 101 to 110 of about 323,918 (260)

CARACTERIZAÇÃO MORFOLÓGICA USANDO DIMENSÕES LINEARES SOBRE OS ATRIBUTOS BIOMÉTRICOS EM SEMENTES DE Annona reticulata (L.) Vell. (ANNONACEAE)

Ciência Florestal, 2018
Differences in seed morphology may indicate variability within and among plant populations. Seeds of Annona reticulata Vell., Annonaceae were biometrically characterized, came from the Rio Brilhante region, Mato Grosso do Sul state, in a fragmented area ...
Montcharles da Silva Pontes, Etenaldo Felipe Santiago, Michele Aparecida dos Santos Nobrega, Vanessa de Mauro Barbosa Freitas   +3 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

INFLUENCE OF PLANTING FURROWS OPENERS ON AGGREGATES GEOMETRIC MEAN DIAMETER AND SURFACE ROUGHNESS AFTER SOIL TILLAGE BY CHIESELLING

, 1995
Uma alta rugosidade superficial e adequado diâmetro médio geométrico (DMG) dos torrões do solo são propri- edades de superfície desejáveis para o controle da erosão hídrica. Por outro lado, ainda é pouco conhecido o efeito da opera- ção de semeadura sobre estas propriedades.
BERTOL, OROMAR JOÃO, SCHLOSSER, JOSÉ FERNANDO   +1 more
openaire   +1 more source

Cepheid limb darkening, angular diameter corrections, and projection factor from static spherical model stellar atmospheres

, 2012
Context. One challenge for measuring the Hubble constant using Classical Cepheids is the calibration of the Leavitt Law or period-luminosity relationship.
Baade, Barmby, Barnes, Benedict, Bonanos, Burki, C.-C. Ngeow, Claret, Claret, Claret, Clement, Davis, Fouqué, Freedman, Getting, Gieren, Gieren, Gieren, Gray, Groenewegen, H. R. Neilson, Hindsley, J. Storm, Kanbur, Keller, Kervella, Kervella, Kovács, Kurucz, Leavitt, Lester, Marengo, Marengo, Marengo, Marengo, Mourard, Mérand, Mérand, Mérand, N. Nardetto, Nardetto, Nardetto, Nardetto, Nardetto, Neilson, Neilson, Neilson, Neilson, Neilson, Neilson, Ngeow, Ngeow, P. Fouqué, Parsons, Pietrzyński, Riess, Riess, Sabbey, Sasselov, Sasselov, Sasselov, Storm, Storm, Turner, van Leeuwen, Wesselink, Windmark   +66 more
core   +3 more sources

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

Advanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov, Matheus Roberto Bellé, Anton Yehorov, Julia Richter, Olena Volkova   +4 more
wiley   +1 more source

Physical properties of unshelled, shelled and kernel of velvet tamarind (Dialium guineense) fruit from Nigeria

Cogent Food & Agriculture, 2017
Physical properties of agricultural products are the most important parameters to determine the optimum design of grading, conveying, processing, and packaging systems.
F.U. Asoiro, S.L. Ezeoha, C.B. Ugwu, G.I. Ezenne   +3 more
doaj   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Comparison of alternative soil particle-size distribution models and their correlation with soil physical attributes

Journal of Hydrology and Hydromechanics, 2019
Complete descriptions of the particle-size distribution (PSD) curve should provide more information about various soil properties as opposed to only the textural composition (sand, silt and clay (SSC) fractions). We evaluated the performance of 19 models
Afrasiabi Fatemeh, Khodaverdiloo Habib, Asadzadeh Farrokh, van Genuchten Martinus Th.   +3 more
doaj   +1 more source

Coarse corn particles cause a negative effect on eggshell quality of semi-heavy laying hens

Animal Nutrition, 2019
One of the possible ways to optimize the productive performance of poultry is through the physical processing of ingredients, which can improve the use of nutrients in these animals.
Vanessa R.M. Oliveira, Alex M.V. Arruda, Aurora S. Melo, Davyd H. Souza, João B.F. Souza-Junior, Raimunda T.V. Fernandes, João P.A.F. Queiroz   +6 more
doaj   +1 more source