Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Dipyrrolylpyrazole 3, obtained from 1,3-di-(1H-pyrrol-2-yl)propane-1,3-dione (2), was prepared as a building block for pyrazole-based binuclear expanded porphyrins.An unusual transformation of 2, in solution or on chromatography, afforded 1,3,3-tri-(1H-pyrrol-2-yl)prop-2-en-1-one (4) in good yield.HRMS indicated the p…
A distinctive structural feature of P450 is the unusual thiolate coordination to heme. We have succeeded in the preparation of the first synthetic thiolato-iron porphyrin (SR complex) that retains its structure during catalytic oxidation.Experiments using SR complex have revealed that the thiolate ligand greatly accel…
Fission‐fragment properties have been calculated for thermal neutron‐induced fission on a 239Pu target, using constrained Hartree‐Fock‐Bogoliubov calculations with a finite‐range effective interaction. A quantitative criterion based on the interaction energy between the nascent fragments is introduced to define the sc…
Uma nova tecnologia vem revolucionando o mercado de descartáveis: os filmes biodegradáveis produzidos a partir de amido. A partir de amidos de fruto-de-lobo e de lírio-do-brejo foram elaborados filmes biodegradáveis usando como plastificante o glicerol. Os amidos apresentaram teor de pureza elevada e diferiram no teor…
A wide range of properties in Austempered Ductile Iron (ADI) components are related to changes in the proportions and morphology of the phases present in the heat-treated microstructure. The final microstructure (and thus the properties) strongly depends on composition, as-cast microstructure and phase transformation…
Electrochemical noise results obtained for mild steel corrosion conditions under a lithium bromide-ethylene glycol solution and in the presence of different concentrations of lithium chromates (Li2CrO4) as corrosion inhibitor are shown. The evaluation was performed from the fractal dimension of the electrochemical noi…
Wehbe, N. Sanchez, A. Bonilla Dalmon, J. -A. Guilhaume, N. Homs, N. Li, Y. Miachon, S. Ramirez de la Piscina, R.
Basics Product Design: Material Thoughts is an inspirational introduction to the many different materials and processes used in product design, exploring their properties and how they have been used by some of the most innovative designers around the world. Throughout the book, David Bramston covers everything from dr…
A novel binuclear Eu(Ⅲ) complex [Eu2(dpa dioxide)2(NO3)4(bpdioxide)-(EtOH)](dpa dioxide=di-2-pyridylamine N,N′-dioxide,bpdioxide=2,2′-bipyridine N,N′-dioxide) has been synthesized and it exhibits strong and sharp fluorescent emission at 614 nm under UV radiation of 245 nm at room temperature.X-ray structural determina…
The problem of estimating the reliability of welded thin-walled structures under static loading is solved. The stochastic nature of the stability of structures is determined by the presence of defects in welded joints. The earlier introduced by the present authors condition when the maximum value of the membrane compo…
Moisture control is essential to obtain decades of service from painted wood siding. Roof design and installation, including adequate overhang, flashing at roof edges, gutters, and downspouts, are critical for controlling water. Use rain-screen installation in conjunction with water-resistive barriers to shed water th…
The adsorption characteristics of n-hexane vapors from gaseous stream onto two types of hypercrosslinked polymeric resins (MN 202 and MN 250), and a bituminous granular activated carbon (AC 20) was investigated.The n-hexane influent concentration ranged from 2100 to 4500 ppm and the adsorption processes were performed…
El objetivo de este trabajo fue evaluar las relaciones entre la densidad de algas fitoplanctónicas y factores físicos como la conductividad y la temperatura en ambientes lénticos y lóticos de la cuenca del río Salado. La información se obtuvo de 352 muestras tomadas en la laguna San Miguel del Monte, en la Lacombe y e…
This paper compares structural and magnetic properties of Cu/Ni and Ni/Cu multilayer systems obtained by means of ion sputtering and electrochemical deposition method. The impact of both thickness of Cu and Ni sublayers and a number of bilayers repetition on magnetic properties was also investigated. The purpose of th…
Mg(OH)2 slurry was prepared by using natural mineral brucite mined in Liaoning province in China, and its de-SOx efficiency was compared with that of Mg(OH)2 slurry prepared by thermal decomposition and hydration of magnesite. The physical and chemical characteristics of Mg(OH)2 powders prepared from brucite and magne…
The optimum molecular weight and concentration of chito-oligosaccharide which added to the milk drink were determined by sin-gle factor experiments and orthogonal experiments.In this research,Chito-oligosaccharide functional milk drink was prepared,which based the bacteriostasis and health-promoting function of chito-…
Les nanomatériaux manufacturés représentent un domaine de la recherche scientifique et de l'industrie en pleine expansion. Le développement extrêmement rapide des nanomatériaux et des nanoparticules manufacturés engendre l'exposition à ces nano-objets d'une population de plus en plus importante (opérateurs en milieu i…
This work explores the possibility to use resistance changes in a carbon nanotube (CNT) doped composites to monitor deformations and damage. Most other studies in the field are done on simplified uniaxial loading whereas current work also evaluates the possibilities to monitor strain in more complex loading case, such…
Lithographic data obtained from PHS(polyhydroxy styrene) having various functionalities were investigated by using a photoacid generator based on diazo and onium type. Chemically amplified photoresist based on the KrF type photoresist was developed by using a photoacid generator and multi-functional resin. Thermal sta…
Highly ordered CdS nanorods and network nanowires were prapared by reacting cadmium ions with thioacetamide (TAA) using bovine serum albumin (BSA) as a biomineralization template with a facile and environmentally benign biomineralization method. The morphology, elemental composition, optical property, and microelectro…