Results 161 to 170 of about 522,374 (315)
Pea-root exudates and their effect upon root-nodule bacteria
, 1972 The main purpose of this investigation was to study the exudation (mechanism, sites) of various compounds by roots of pea seedlings in relation to the growth of Rhizobium leguminosarum.Chapter 1 gives a survey of the literature pertaining to plant-root ...
Egeraat, A.W.S.M., van +1 more
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Wastewater treatment from nitrogen compounds
, 2020 Increasing the concentration of nitrogen compounds in wastewater has led to a deterioration of surface water quality, which is the main source of economic drinking water supply for the vast majority of Ukrainians.
Suleyko, Tetiana +3 more
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Metabolism of soluble proteins by rumen microorganisms and the influence of condensed tannins on nitrogen solubility and degradation [PDF]
, 2004 The amino acid requirements of ruminants are met by two sources; microbes leaving the rumen and dietary protein escaping fermentation in the rumen. Much ruminant research has therefore focused on improving amino acid supply to the duodenum by increasing ...
Hedqvist, Helena
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Surface ionization of organic compounds on the basis of nitrogen, sulfur, phosphorus, and arsenic
Тонкие химические технологии, 2011 A research facility and a technique for measuring the basic parameters of surface ionization of organic compounds were developed. For a series of organic compounds of nitrogen, sulfur, phosphorus, and arsenic the key parameters of surface ionization were
S. A. Solntsev +2 more
doaj
Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova +2 more
wiley +1 more source
Marine sponges as pharmacy Production of Bioactive compounds
, 2007 Malaria, which is caused by multiplication of the protozoan parasite Plasmodium falciparum in erythrocytes, is a major health problem in many southern countries.
K. Kathiresan +3 more
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Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source
New precious metal compounds in cancer therapy
, 2008 Includes abstract.Includes bibliographical references (leaves 139-160).Cisplatin is one of the most effective cancer medications currently available. However, it is seriously limited by patient toxicity and drug resistance.
Peters, Dean Douglas
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