Design and construction of a Microreactor dedicated to the direct synthesis of Hydrogen Peroxide
Abstract only.
Materials Literature
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Kajian protein yang mengkatalisis pembentukan silika dan asam lemak tak jenuh rantai panjang dari diatom Chaetoceros gracilis
Nanosilika adalah material silika berskala nano yang akhir-akhir ini menjadi bahan penting untuk berbagai alat. Pada bidang pangan nanosilika dimanfaatkan antara lain sebagai filtering agent, yakni komponen membran ultrafiltrasi industri minuman, dan elemen alat analitik bionanosensor serta bahan komposit active packa…
Studium fyzikálních vlastností podchlazených tavenin systému Se-Te
Tato bakalářská práce se zabývá viskozitním chováním podchlazených chalkogenidových tavenin sklotvorného systémemu Se - Te, definicí viskozity, její závislostí na teplotě a hlavně různými metodami měření viskozity. Experimentální část je zaměřena na přípravu vzorku o konkrétním složení Se70Te30 a měření jeho viskozitn…
ВЛИЯНИЕ МОНОХРОМАТИЧЕСКОГО β-ИЗЛУЧЕНИЯ НА ИОННЫЕ КРИСТАЛЛЫ
In the given work the pulse luminescence of ionic crystals in the conditions of continuous influence on them of integrated stream β-particles is studied. Diagrammes of dependences of potential of a crystal and exit of a luminescence from duration of ionising influence are received.
Synthèses par voies solide et hydrothermale pour céramiques de type BNT - BT - BKT
This study focuses on the study of one of the most promising systems as an alternative to PZT, the Bi0,5Na0,5TiO3 - BaTiO3 - Bi0,5K0,5TiO3 ternary system. The first part of the thesis consists on the solid state synthesis of this system and has allowed a more accurate estimation of the morphotropic phase boundary loca…
Controle e velocidade de motores de indução trifásica em malha fechada
Necessitamos do controle de velocidade de motor em malha fechada para evitarmos problemas que possam acontecer devido ao fluxo desordenado em uma linha de producao, e a possibilidade de ocasionar uma alta pressao na linha que cause acidentes ou fluxo baixo e saturado.
fabricación de componentes estructurales para el sector aeronáutico con materiales compuestos de fibra de carbono y matriz termoplástica
En los ultimos anos, la utilizacion de materiales compuestos reforzados con fibra continua ha ido ganando aceptacion en la industria debido a sus mejores propiedades mecanicas especificas con respecto a los metales. Dentro de la amplia familia de materiales compuestos, los composites avanzados de matriz termoplastica…
Исследование кинетики восстановления U3O8 водородом в неизотермических условиях
U3O8. The ability of preliminary reduction of U3O8 by hydrogen before its fluorination has been considered. The kinetics of reduction process in non-isothermal conditions was studied and kinetic parameters of hydrogen interaction with U3O8 were calculated.
La，V共掺杂的Bi4Ti3O12铁电薄膜的溶胶-凝胶法制备及性能测试
采用溶胶-凝胶（sol-gel）工艺在Pt/TiO 2 /SiO 2 /p-Si（100）衬底上制备出Bi 4 Ti 3 O 12 （BIT）和Bi 3.25 La 0.75 Ti 2.97 V 0.03 O 12 （BLTV）铁电薄膜，研究了La，V共掺杂对BIT薄膜的晶体结构和电学性能的影响.BIT薄膜为 c 轴择优取向，BLTV薄膜为随机取向，拉曼光谱分析表明V掺杂降低了TiO 6 （或VO 6 ）八面体的对称性，也增强了Ti—O键（或V—O键）杂化.BLTV薄膜的剩余极化 P r 为25.4 μC/cm 2 ，远大于BIT薄膜的9.2 μC/cm 2 ，表现出良好的铁电性能.疲劳、漏电流测试显示BLTV薄膜具有优良的抗疲劳…
Моделирование процесса формирования диффузионных слоев на титане при взаимодействии со стальной технологической оснасткой в условиях высокотемпературного нагрева
A model of reactive diffusion of carbon steel equipment in titanium and steel tooling interaction with titanium to form intermetallic compounds. It is shown that the thickness of the layer of titanium carbide produced by more than an order of magnitude smaller than the thickness of the intermetallic layer. Determined…
聚（3-己基噻吩）/硫化鎘複合物用於異質接面太陽能電池上之合成與特性研究
Conventional solar cells were built from inorganic materials such as silicon. Although the efficiency of such conventional solar cells is high, very expensive materials and energy intensive processing techniques are required. The need to develop and deploy large-scale, cost-effective, renewable energy is becoming incr…
Экспериментальное определение термоЭДС в элементах термоэлектрогенератора на основе моносульфида самария и селенида меди
A device measuring the thermoelectric power and electrical conductivity in semiconductor materials is developed. The article studies the dependence of thermoelectric power on the temperature difference between heater and heat sink for the samples of samarium monosulfide and copper selenide. Specific heat flow from the…
이종금속 용접부의 일차수응력부식균열 방지를 위한 예방정비 용접 효과 분석
니켈합금 용접재료인 Alloy 82/182 용접부에서의 일차수응력부식균열(PWSCC, Primary Water Stress Corrosion Cracking)은 원자력발전소내 주요 기기의 건전성을 저해시킬 수 있는 요인으로, 용접시 발생하는 인장 잔류응력에 의해 발생할 수 있다. 해외 원자력발전소의 경우 가압기 노즐 등에 적용된 Alloy 82/182 이종금속 용접부에서 PWSCC에 의한 균열이 여러 차례 보고되고 있으며, 이를 예방하기 위한 방법으로 인장 잔류응력을 줄여줄 수 있는 오버레이 용접을 수행하고 있다. 본 논문에서는 PWSCC를 예방하기 위한 목적으로…
Estudo da incorporação de hidrogênio no aço líquido.
Submitted by Stéfany Moreira (stemellra@yahoo.com.br) on 2013-03-06T17:51:10Z No. of bitstreams: 1 DISSERTAÇÃO_EstudoIncorporaçãoHidrogênio.pdf: 5222850 bytes, checksum: 00a4e3b79ab959d8ec09ee63d94179aa (MD5)
Aspectos de la polimerización de glicidil metacrilato y sulfuro de propileno, usando difenilcinc como iniciador
La actividad catalítica del difenilcinc como iniciador en la polimerización por apertura de anillo de glicidil metacrilato (MAG) y sulfuro de propileno (SP) fue analizada. Los resultados obtenidos muestran que este iniciador muestra una alta actividad catalítica hacia la polimerización de ambos monómeros, donde los re…
Azo- and butadiyne-linked 5,10-diarylporphyrins
Porphyrins are one of Nature’s essential building blocks that play an important role in several biological systems including oxygen transport, photosynthesis, and enzymes. Their capacity to absorb visible light, facilitate oxidation and reduction, and act as energy- and electron-transfer agents, in particular when sev…
Interaction between Mg-protoporphyrin IX and HEAT SHOCK PROTEIN 81 is essential for regulation of LHCB expression during plant stress response :
Interaction between Mg-protoporphyrin IX and HEAT SHOCK PROTEIN 81 is essential for regulation of LHCB expression during plant stress response :
A study of the dissociation dynamics of D₂O on zirconium surfaces using resonance enhanced multiphoton ionization spectroscopy
Atomic hydrogen adsorbates on Zr surfaces have much higher probability for dissolution into the bulk than recombinative desorption even when the surface is heated at rates as high as 10¹⁰ K/s. On the other hand, water dissociation on hot Zr surfaces (which takes place at temperatures as low as 80 K) produces molecular…
Моделирование параметров cool-транзисторов
In article results of research of influence structurally-technology factors on static parametres of COOL-transistors are presented. Researches are executed with use of computer modelling
WC-Co(Ni,Fe)硬质合金比磁饱和的标记、单位和换算
在推证了铁磁材料的饱和磁化强度MS或饱和磁极化强度JS和磁饱和状态下的磁感应强度BS间的定量关系的基础上，得到了WC-Co (Ni,Fe)硬质合金的MS,BS和JS分别与合金密度ρ的比值即标称比磁饱和 (通称“磁饱和”)间的数值换算关系为: BS/ρ(T·m3·kg-1)=JS/ρ(T·m3·kg-1) =μ0·MS/ρ (A·m2 ·kg-1)=μ0σ (A·m2 ·kg-1) ，JS/ρ (4π×10-7T·m3·kg-1)=σ (4π×10-7T·m3·kg-1)=MS/ρ(A·m2· kg-1)=σ (A·m2· kg-1)，BS/ρ(×10-7 T·m3·kg-1)=4πσ (×10-7 T·m3·kg-1)= 4π·M…