Results 61 to 70 of about 656,287 (322)
Rekayasa Mesin, 2023 High hardness and wear resistance of bucket tooth are required in the face of abrasion and impact. High manganese steel is hard and ductile, making it more suitable for bucket tooth materials.
Suryo Darmo, Braam Delfian Prihadianto
doaj +1 more source
Global Cardinality Constraints Make Approximating Some Max-2-CSPs Harder [PDF]
, 2019 Assuming the Unique Games Conjecture, we show that existing approximation algorithms for some Boolean Max-2-CSPs with cardinality constraints are optimal. In particular, we prove that Max-Cut with cardinality constraints is UG-hard to approximate within ~
Austrin, Per, Stankovic, Aleksa
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FEBS Open Bio, EarlyView.Chemotherapies such as doxorubicin can have toxic effects on healthy cardiovascular/heart tissue. Following up on a doxorubicin toxicity study in mice without tumors where nitrate water was cardioprotective (lessened toxicity), this study with tumor‐bearing mice undergoing doxorubicin treatment showed no negative effect of nitrate and nitrite on drug ...
Rama D. Yammani +7 more
wiley +1 more source
Problems of locomotive wheel wear in fleet replacement
Nauka ta progres transportu, 2013 Purpose. To conduct a research and find out the causes of defects appearing on the wheel thread of freight locomotives 2М62 and SIEMENS ER20CF. Methodology.
L.P. Lingaytis +2 more
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Rainbow Coloring Hardness via Low Sensitivity Polymorphisms [PDF]
, 2019 A k-uniform hypergraph is said to be r-rainbow colorable if there is an r-coloring of its vertices such that every hyperedge intersects all r color classes.
Guruswami, Venkatesan, Sandeep, Sai
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FEBS Open Bio, EarlyView.This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart +4 more
wiley +1 more source
Evaluation of the influence of laser quenching mode parameters on the quality of the surface and surface layer of machine parts (overview) [PDF]
Омский научный вестникThis review provides an assessment of the influence of the parameters of the laser hardening mode on the quality of the surface and the surface layer.
S. V. Petrochenko +3 more
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Enhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying [PDF]
, 2018 The effect of metal alloying on mechanical properties including hardness and fracture toughness were investigated in three alloys, Ti~0.33Al0.50(Me)~0.17N (Me¿=¿Cr, Nb and V), and compared to Ti0.50Al0.50N, in the as-deposited state and after annealing ...
Andersson, J. M. +7 more
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FEBS Open Bio, EarlyView.dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon +6 more
wiley +1 more source
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2022 The research aims to develop a gluten-free biscuit from composite flour of maize, rice, buckwheat, and soybean by replacing wheat flour. Biscuits were prepared from four formulations of maize (40 parts), rice (20-35 parts), buckwheat (5-20 parts), and ...
PRAVIN OJHA +5 more
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