Results 61 to 70 of about 417,548 (297)

Controle químico da ferrugem do cafeeiro (Coffea arabica L.) e seus efeitos na produção e preservação do enfolhamento Practices of coffee rust control related to yield and leaves retention

Ciência e Agrotecnologia, 2004
Objetivou-se com este trabalho um melhor ajuste do controle da ferrugem do cafeeiro (Coffea arabica L.) durante a fa-se de pré-colheita e verificar os seus efeitos sobre a produção e preservação do enfolhamento. O trabalho foi desenvolvido em uma lavoura
Rodrigo Luz da Cunha, Antônio Nazareno Guimarães Mendes, Sára Maria Chalfoun   +2 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

Incidência de pragas e doenças em agroecossistemas de café orgânico de agricultores familiares em Poço Fundo-MG Incidence of plagues and diseases in agroecossystems of organic coffee of familiar farmers in Poço Fundo-MG

Ciência e Agrotecnologia, 2004
Objetivando-se determinar a incidência de pragas Leucoptera coffeella (GUÉRIN-MENÉVILLE, 1842) e Hypothenemus hampei (FERRARI, 1867) e doenças Hemileia vastatrix (BERK e BROOME, 1869) e Cercospora coffeicola (BERK e CURTIS, 1880), durante o período de ...
Márcia Martins, Antônio Nazareno Guimarães Mendes, Maria Inês Nogueira Alvarenga   +2 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

Genetic Diversity and Association of EST-SSR and SCoT Markers with Rust Traits in Orchardgrass (Dactylis glomerata L.)

Molecules, 2016
Orchardgrass (Dactylis glomerata L.), is a well-known perennial forage species; however, rust diseases have caused a noticeable reduction in the quality and production of orchardgrass.
Haidong Yan, Yu Zhang, Bing Zeng, Guohua Yin, Xinquan Zhang, Yang Ji, Linkai Huang, Xiaomei Jiang, Xinchun Liu, Yan Peng, Xiao Ma, Yanhong Yan   +11 more
doaj   +1 more source

Effects of sowing time on pink snow mould, leaf rust and winter damage in winter rye varieties in Finland [PDF]

, 2005
Disease infection in relation to sowing time of winter rye (Secale cereale) was studied in southern Finland in order to compare overwintering capacity of modern rye varieties and to give recommendations for rye cultivation.
Avikainen, Hanna, Huusela-Veistola, Erja, Laine, Antti, Pahkala, Katri, Serenius, Marjo   +4 more
core  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Wheat Rust and Bérberry Rust [PDF]

Nature, 1870
ALFRED W. BENNETT, M. J. Berkeley
openaire   +3 more sources