Materials Literature
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The use of RE 2 Si 2 O 7 materials as environmental barrier coatings ( EBC s) and in the sintering process of advanced ceramics demands a precise knowledge of the coefficient of thermal expansion of the RE 2 Si 2 O 7 . High‐temperature X‐ray diffraction ( HTXRD ) patterns were collected on different RE 2 Si 2 O 7 poly…
合成了氨基以及氨基功能化离子液体修饰的介孔材料SBA-15（NH2-SBA和NH2-IL-SBA）,并以戊二醛为活化剂对NH2-IL-SBA进行活化处理（CA-NH2-IL-SBA）,通过元素分析、N2吸附-脱附、X射线衍射、红外光谱等方法研究了修饰及活化对SBA-15结构的影响.将所得新型固定化载体用于Burkholderia cepacia脂肪酶（BCL）的吸附固定、共价交联固定及聚集包被固定.以三乙酸甘油酯的水解为模型反应,考察了固定化BCL的酶活、最适反应条件、稳定性等酶学性质.结果表明,离子液体修饰后的载体保持了原有的孔道结构,与氨基修饰以及原粉SBA-15吸附固定的BCL（BCL-NH2-SBA和BCL-SBA-15）…
以甲醇和水的混合溶液为溶剂,合成了吡啶-2,6-二甲酸氢锂Li（HDPC）（H2O）（s）,利用X射线单晶衍射法表征了其晶体结构.用精密自动绝热热量计测量了其在78～378 K温区的低温热容.通过最小二乘法拟合得到摩尔热容随折合温度变化的多项式方程,利用此方程计算出了化合物的舒平热容和各种热力学函数.设计合理的热化学循环,利用等温环境溶解-反应热量计分别测定所设计热化学反应的反应物和产物在选定溶剂中的溶解焓,通过计算得到反应焓为-（46.83±0.16）kJ/mol.利用Hess定律计算出吡啶-2,6-二甲酸氢锂的标准摩尔生成焓为-（747.90±1.46）kJ/mol.利用紫外-可见光谱仪对反应物和产物溶液的测量证实所设计热化学…
International audience
Application number: WO2012EP71673 20121102 Priority number(s): EP20110187884 20111104 ; EP20120176840 20120718 Also published as: WO2013064608 (A3) EP2590310 (A1)
Fil: Rodríguez, Virginia Inés. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina.
Financiadora de Estudos e Projetos
Este trabalho apresenta os avanços no desenvolvimento de um novo método de ensaio não-destrutivo magnético. O método está baseado na técnica do Ruído Magnético de Barkhausen (RMB), particularmente em uma variante denominada Barkhausen Contínuo. O RMB é gerado devido à ação de um campo magnético variável magnetizante q…
O câncer de mama é a segunda principal causa de morte entre as mulheres nos países em desenvolvimento, devido ao seu alto grau de malignidade. O tratamento baseia-se, principalmente, em terapias hormonais, uma vez que as células deste tipo de tumor expressam, em sua maioria, um elevado número de receptores hormonais,…
The authors consider the problem of bifurcation of a thin-walled circular cylindrical shell taking into account the complex nature of the deformation at the time of loss of stability under complex loading by sub-critical axial compressive force and torque in the deviatoric A. Ilyushin plane of strains .
There is given a new generic formulation of boundary value problems of the analysis of their own forms of multivariable system on the example of the anisotropic linear elastic (according to Hooke) and small (according to Cauchy) strain of thin circular plates, circular cylindrical and straight conical domes of revolut…
The paper proposes analytical method of solving the contact problem for a two-layer elastic coating of solid cylinder applicable for circular layers of arbitrary thickness, simultaneously in case of compressible and incompressible materials. The law of contact pressure change is expressed in a form of an infinite seri…
The equations of the loading process in terms of rectangular shallow shells with bilateral compression when calculating the variational methods are derived. The problem is solved in view of geometrical non-linearity.
Significance and Use 4.1 The surface-crack tension (SCT) test is used to estimate the load-carrying capacity of simple sheet- or plate-like structural components having a type of flaw likely to occur in service. The test is also used for research purposes
W artykule przedstawiono analizę zastosowanego sposobu modernizacji wykonania wałka inspektomatu, który uległ szybkiemu zużyciu. Modernizacja polegała na zastąpieniu połączenia skręcanego połączeniem spawanym. Miejsce i sposób wykonania spoiny łączącej końcówkę wałka z rurą spowodowały podhartowanie strefy wpływu ciep…
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
T.C. Bilim, Sanayi ve Teknoloji Bakanligi, Bilim ve Teknoloji Genel Mudurlugu San-Tez Projesi 00853.STZ.2011–1
A utilizacao de plasticos vem aumentando a cada ano, gerando em torno de 20% do seu volume total de residuos. Diante desta realidade surge uma nova classe de polimeros, os biopolimeros/bioplasticos (polimeros biodegradaveis) estes, se degradam mais rapidamente no ambiente natural. Este tipo de plastico nos dias atuais…
Secondly, I would like to thank Dr. Carole Dabney-Smith, who has been like a second research advisor to me.Carole, you have always had an open door policy, and I am so thankful for the many talks that we have had, whether they were about research, movies, or my decision to change degrees.I will always remember your
Fil: Rodriguez, Virginia Ines. Universidad Nacional del Litoral. Facultad de Ingenieria Quimica; Argentina.