Results 71 to 80 of about 3,397 (179)

NUTRITIONAL DIAGNOSIS FOR COTTON UNDER SAVANNAH BY USING THE DRIS AND SUFFICIENCY RANGES METHODS DIAGNOSE NUTRICIONAL PELOS MÉTODOS DRIS E FAIXAS DE CONCENTRAÇÃO PARA ALGODOEIRO CULTIVADO SOB CERRADO

open access: yesPesquisa Agropecuária Tropical, 2011
Brazil is the fourth largest cotton exporter and fifth largest producer in the world, however, it is predominantly cultivated under savannah soils, which present natural nutrients limitations.
Paulo Alcanfor Ximenes   +4 more
doaj   +1 more source

Reducing the use of Fossil Carbon and Fuels to Defossilize the Electric Steelmaking Route: Evaluation of the Effects of Alternative C‐Bearing Materials and Hydrogen in the Electric Arc Furnace

open access: yessteel research international, EarlyView.
The experiments and simulations demonstrate that, in general, alternative carbon sources can decrease fossil CO2 without adversely impacting EAF process and product. High plastics and tires ratios cause unsafe conditions and poor slag foaming. Hydrogen in EAF burners decreases CO2 but increases water vapor, which can raise the hydrogen content in ...
Ismael Matino   +7 more
wiley   +1 more source

Obliczenia oraz interpretacja w zintegrowanym systemie diagnostyki i zaleceń nawozowych

open access: yesAgronomy Science, 2004
The paper presents a way of calculation in the method of the diagnosis and recommendation integrated system DRIS, described in Appendix 5 by Reuben B. Beverly, in the book of J. Benton Jones Jr, Benjamin Wolf and Harry A. Mills. 1991.
Stanisław Z. Łabuda, Reuben B. Beverly
doaj  

A Novel Approach to Energy Management in Electric Steelworks

open access: yessteel research international, EarlyView.
Feed‐forward neural networks are exploited to estimate electric energy consumptions of the electric arc furnace and ladle furnace processes. The models are used to optimize production schedule so that more energy intensive grades are produced when the cost of energy is lower.
Valentina Colla   +12 more
wiley   +1 more source

Isothermal Reduction Behavior and Microstructural Evolution of Iron Ore Sinter Under Simulated Radial Blast Furnace Gas Atmospheres With Hydrogen Injection

open access: yessteel research international, EarlyView.
Commercial iron ore sinter is reduced isothermally under operation‐derived radial blast furnace gas atmospheres with and without 20 kg H2/tHM injection. Hydrogen improves reduction at 900–1100 °C, whereas at 700 °C the high H2O content limits the wüstite‐to‐iron driving force.
Ahmed Abdelrahim   +5 more
wiley   +1 more source

A Critical Review on Nitrogen Control in the Scrap‐Based Electric Arc Furnace Steelmaking Route to Produce Low‐Nitrogen Steels

open access: yessteel research international, EarlyView.
In primary electric arc furnace (EAF) steelmaking, carbon boiling removes nitrogen from liquid steel and sustains slag foaming. In 100% scrap‐ or hydrogen direct reduced iron (HDRI)‐based EAF steelmaking, carbon boiling is absent; therefore, carbonaceous material and oxygen injection into the slag is needed to maintain foaming and avoid nitrogen ...
Zushu Li   +3 more
wiley   +1 more source

Clinical and molecular features of PRCD‐associated retinopathy

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To describe the clinical and genetic characteristics of patients with biallelic disease‐causing variants in the PRCD (Progressive Rod‐Cone Degeneration) gene. Methods Multicentre, retrospective cohort study of 19 patients from 13 families across nine reference centres in six countries.
Vasil Kostin   +30 more
wiley   +1 more source

sGC stimulator BAY 41‐8543 improves survival and ventricular function in a rat model of doxorubicin‐induced cardiomyopathy with nephrotic syndrome

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Anthracyclines such as doxorubicin (DOXO) remain a cornerstone of cancer therapy but are associated with a high risk of cardiotoxicity and subsequent heart failure (HF). Impairment of NO/soluble guanylyl cyclase (sGC)/cGMP pathway has been reported in anthracycline‐induced cardiomyopathy.
Olga Gawrys   +14 more
wiley   +1 more source

Detection and performance analysis of covert communications with disco reconfigurable intelligent surfaces for IoT

open access: yes物联网学报
With the rapid growth of sensitive data in the Internet of Things (IoT), covert communication has become an important security mechanism by hiding the very existence of wireless transmissions.
HUANG Huan, SUN Luyao, ZHANG Hongliang
doaj   +2 more sources

Testing and validation of methods for the diagnosis and recomendation integrated system for Signal grass

open access: yesScientia Agricola, 2005
The Diagnosis and Recommendation Integrated System (DRIS) allows the interpretation of results of leaf analysis through relationships among nutrients, instead of the absolute and isolated concentration of each one, as it is used by the criterion of ...
Silveira Cristiane Prezotto   +2 more
doaj  

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