Welding using metal powder in the solid-state
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Materials Literature
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Estudio sistemático de las propiedades mecánicas de las micropartículas de magnetita embebidas en una matriz de concreto polimérico
In this paper, we present the synthesis and characterization of magnetic polymeric concrete with microparticles of magnetite embedded in a polymeric concrete matrix. Including the systematic study of the mechanic properties varying the concentration of concrete and magnetite microparticles like the reinforcement of th…
Efficacy of Silver Nanoparticles Synthesized from Hymenocallis species (Spider Lilly) Leaf Extract as Antimicrobial Agents
Biogenic synthesis of silver nanoparticles synthesized from Hymenocallis species (Spider Lilly) leaf extract was subjected for investigation of its antimicrobial property against four bacterial species (E. coli, Salmonella sp., Streptococcus sp. & Staphylococcus sp.). The results revealed that synthesized nanoparticle…
STUDY OF EFFECT Al2O3 NANOPARTICLES ON ELECTRICAL PROPERTIES OF EPOXY REINFORCEMENT BY CARBON FIBERS HYBRID COMPOSITES
In this paper was investigation the electrical properties of the epoxy "Hybrid Composites" as a function of a frequency. The composites constituents were epoxy using a matrix with reinforcement ratio (1:3) and volume fractions as (25% wt). The "Hybrid Composite" samples were prepared by addition alumina nanoparticles…
Biasing Plasmonic Nanocavities
Molecular electronics promises a new generation of ultralow-energy information technologies, based around functional molecular junctions where two electrodes are bridged by just a few molecules. How molecules exactly behave in a real junction however is still not well understood, since interactions with the electrode…
A green approach for the biosynthesis of powdered silver nanoparticles using leaf extract of Trigonella foenum-graecum L.: Characterization and antibacterial evaluation
Silver nanoparticles (AgNPs) were synthesized using aqueous leaf extract of Trigonella foenumgraecum as reducing and stabilizing agent. The ultraviolet-visible spectrum showed absorption peak at 480 nm. XRD pattern indicates the formation of face-centered cubic structure of silver nanoparticles. FESEM images indicate…
Electroplated Al – An Alternative to Cu or Ag Electrode in Si Solar Cells
This report shall serve as a cumulative progress update on the state of this project.
Shaping polymer surfaces by laser interactions: formation and nanomechanical properties of LIPSS in controlled enviroments
TNT2019 edition will take place in San Sebastian, Spain, Sept. 30 - Oct. 4, 2019. --http://tntconf.org/2019/index.php?conf=19
폴리(2-에티닐-N-아이오도피리디늄 테트라페닐보레이트)의 전기화학적 특성
A new ionic polyacetylene with bulky substituents, poly(2-ethynyl-N-iodopyridinium tetraphenylborate), was prepared by the ion-exchange reaction of poly(2-ethynyl-N-iodopyridinium iodide) using sodium tetraphenylborate. The electro-optical and electrochemical properties of the resulting polymer were examined and discu…
RHEOLOGICAL PROPERTIES OF CHITOSAN EDIBLE FILMS
e increased requirements for high quality and extended shelf life of fresh and minimally processed fruits in the recent years has helped forward the development of some innovative techniques to keep the natural and fresh look of the food for as long as possible while ensuring it’s safety. In this context formulation…
Quantum transport in gapped graphene
This thesis focuses on investigating local and nonlocal transport properties in hexagonal boron nitride (hBN)/graphene superlattice Hall bars and graphene Hall bars proximity coupled to the ferrimagnetic insulator yttrium iron garnet ($\text{Y}_{3}\text{Fe}_{5}\text{O}_{12}$ or YIG). The first part describes in detail…
Structure and electronic properties of h-BN on curved crystals
Trabajo presentado en 20th Trends in Nanotechnology International Conference (2019), celebrada en San Sebastián (España), del 30 de septiembre al 4 de octubre de 2019
ИССЛЕДОВАНИЕ СЕИСМОСТОИКОСТИ ГРУНТОВЫХ ПЛОТИН ОТ ДЕИСТВИЯ МНОГОКРАТНЫХ СЕИСМИЧЕСКИХ ВОЗДЕИСТВИИ, СООРУЖЕННЫХ В ГОРНО- СКЛАДЧАТЫХ РЕГИОНАХ
The problem of seismic stability of homogeneous earth dams constructed in complex geohydrodynamic regions has been solved. The calculations are performed using from the finite element method. Given the great extent at the base of such dams, the general equation of their motion is solved taking into account the well-kn…
Understanding the transport mechanisms of BSEP to improve the prediction of DILI compounds
At present, Drug-Induced Liver Injury (DILI) is the most frequent cause of acute liver injury, with an incidence ranging from 0.023-1.5‰ in developed countries. DILI can be separated into two different types. Whereas intrinsic DILI concerns predictable dose-dependent hepatoxicity, idiosyncratic DILI refers to unpredic…
Preheating of welded structures
Associação sem fins lucrativos cujo principal objetivo é a promoção e divulgação técnica na área da construção com aço. Desde a sua criação, a associação tem vindo a ter um crescimento de relevo contando hoje em dia com mais de 430 associados, sendo cerca de 100 membros colectivos como metalomecânicas, gabinetes de pr…
МНОГОФАКТОРНЫЙ МЕТОД ПОДБОРА ФРИКЦИОННЫХ МАТЕРИАЛОВ ПАР ТРЕНИЯ ТОРМОЗНЫХ УСТРОЙСТВ
В статье рассмотрено связь работы выхода электронов и ионов с робочих поверхностей металлополимерных пар трения и их поверхностной температуры от импульсных удельных нагрузок, действующих на пятна контактов микровыступов. Проведен анализ температур, возникащих на поверхностях пятен микровыступов при различных типах ко…
Use of Steel for the Design and Construction of Modern and Level Buildings
Associação sem fins lucrativos cujo principal objetivo é a promoção e divulgação técnica na área da construção com aço. Desde a sua criação, a associação tem vindo a ter um crescimento de relevo contando hoje em dia com mais de 430 associados, sendo cerca de 100 membros colectivos como metalomecânicas, gabinetes de pr…
STUDY ON ENERGY EFFICIENCY OF A-TIG WELDING OF STAINLESS STEELS USING INDIVIDUAL FLUX-OXIDES. PART 2. INFLUENCE OF THERMODYNAMIC AND PHYSICO-CHEMICAL PROPERTIES OF FLUX-OXIDES
This paper presents the results of studies on the influence of thermodynamic and physico-chemical properties of individual flux-oxides on the energy efficiency of the arc A-TIG welding of stainless steel CrNi18-10. The obtained results of the research allowed to reveal the criteria for evaluating the energy efficiency…
Front Matter: Volume 11084
Design principles for efficient singlet fission in anthracene
涂硼中子探测器用B 4 C薄膜的应力和粘附力研究
涂硼中子探测器作为3He中子探测器的替代技术，已经成为了当今研究的焦点。对于涂硼中子探测器而言，B4C薄膜的应力需要减小，与铝基底间的粘附力需要增大。为了增大B4C薄膜与铝基底间的粘附力，该实验使用直流磁控溅射技术在不使用基底加热的前提下制备应力较小的B4C薄膜，同时在铝基底和B4C薄膜之间添加Mg-Al合金层。该实验主要研究了沉积过程中溅射气压对B4C薄膜应力的影响，以及Mg-Al合金层及其溅射气压和厚度对B4C薄膜粘附力的影响。实验结束后采用扫描电镜和透射电镜对薄膜的微观结构进行了表征和分析。实验结果表明，当沉积过程中溅射气压增大时，B4C薄膜的应力减小并趋于稳定。超薄多孔的Mg-Al合金层与B4C、Al2O3有着明显的反应，…