Materials Literature
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The Kinetics of Oxidation of amino acids glycine, alanine and valine by manganese (III) acetate in aqueous sulphuric acid has been studies. The reaction is found to proceed through the formation of intermediate complex. This shows an inverse dependence on [H2SO4]. The reaction has second order dependence with respect…
Al-Madinah Al-Monawarah lies around latitude 39˚36'00 , longitude 24˚28'00 , altitude 624 m . Ten surface soil samples were collected from Al-Madinah Al-Monawarh province with a template 30×30×15 cm. Samples were analyzed by atomic absorption spectrometer for Aluminum (Al) , Iron (Fe) and Calcium (Ca) concentrations i…
There was a concern that weld toe and welding defects can be causes of the enhancement of the reduced fatigue strength due to hydrogen. Thus, the effect of hydrogen on the fatigue strength of weld-jointed tubes was evaluated. The welding defects were intentionally produced by incomplete penetration. The materials were…
An ester homologous series entitled Ethyl-p-[p/-n-alkoxy cinnamoyloxy] cinnamates is synthesized and studied for liquid crystal behavior and its correlation with molecular structure. Methyl to n-pentyl homologues are non-liquid crystal while, n-hexyl homologue to n-octyl homologue n-decyl, n-dodecyl, n-tetradecyl and…
Sandwich structures devices of type M1/MePc/M2 have been fabricated by successive vacuum deposition of M1 (Ohmic hole injections contact: Au), MePc (ZnPc, NiPc) and M2 (electrode with low work function: Al) thin films were thermally evaporate on glass substrates maintained at room temperatures under high vacuum (10 -6…
目的：微小気泡を用いた低侵襲治療法として，超音波照射による温熱効果及び非温熱効果を利用した手法が開発検討されているが，微小気泡は生体内では血流と共に拡散するため，これまでは血流に任せる以外に送達手段が無く，投入効率と副作用の問題があった．対象と方法：本論文では微小気泡の動態を制御するため，複数の超音波音源と単純な形状の分岐を有する模擬血管を用いて，微小気泡の流路選択性能を向上させる方法について検討した．超音波が微小気泡に及ぼす作用力には，伝搬方向への推進力となるprimary Bjerknes forceと，気泡同士が結合した凝集体を形成する引力となるsecondary Bjerknes forceがあるが，前者では流路の分岐形状…
We developed a H2 and C1-C4 heterogeneous mechanism to describe their catalytic reaction on a platinum catalyst. To verify the mechanism we carried out simulations with methane, ethane, propane, and n-butane and compared the results to the reported experimental data. The ignition and combustion (ignition or combustion…
A new paradigm for vibrational energy dissipation can be devised exploiting nanostructured materials \nmade of carbon nanotubes (CNTs). The high interfacial area of CNTs together with the poor \nbonding properties (when immersed in a polymeric or epoxy matrix) enhances interfacial slippage \nthus providing high levels…
The increase of compression strength of hollow block can be conducted with addition cooal waste with ash fly. This research use mixture composition with comparison of materials compile hollow block which consist of pozolan portland cement, fly ash and sand. The comparison with composition fly ash equal to 0 is% ( norm…
重防食塗装に求められる)機能は，鋼材の保護(防食)と 構造物への色彩,付与(着色)であり，これらを長期間維持 することである
The present work focused on the design of drug delivery system based on an amphiphilic and pH-sensitive hydrogel. The hydrogels were prepared via graft copolymerization of acrylic acid (AA) onto chitosan backbones by a free radical polymerization technique. The structure and surface morphology of the hydrogels were ch…
This paper deals with the study of mechanical properties of the composite sandwich plates made up of coir industry waste, the pith / the timber industry waste the sawdust as the fillers in the formof core and the Palmyra fiber as skin. Coir pith being a waste disposed from the coir factories, pose the danger of pollut…
Leo Hendrik Baekeland (1863-1944) was one of the icons of the American Industrial Age, and a source of inspiration for later entrepreneurs in industry and academe. After uprooting his academic career at the University of Ghent at age 35, he emigrated to the United States to reinvent himself in a host of diverse roles.…
Explosive growth in UV/EB PSA technology was predicted but never materialized. Accurate data on the use of UV/EB technology has been difficult to obtain since most companies that convert UV/EB PSAs also manufacture their own adhesives (captive production). A 2003 study by ChemQuest estimated that 1.5 million pounds of…
[xu, xiaoxiang; irvine, john t. s.] univ st andrews, dept chem, st andrews ky16 9st, fife, scotland. [xu, xiaoxiang; irvine, john t. s.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china. [ni, shuang] univ sci & technol china, dept chem, hefei 230026, anhui, peoples…
Melt-state 13 C NMR spectroscopy of polyolefins has been shown to be sensitive, quantitative and allow rapid sample throughput. The method was implemented in an industrial research and development environment and has proved to be both highly sensitive and versatile. For general problem solving melt-state MAS NMR was f…
Graphical AbstractOpen in new tabDownload slideMichael Sperling introduces this themed issue of Metallomics, which features work presented during the third in this series of meetings, held in Germany.
Plastic deformation characteristics and limit strains are simulated for textured face‐centered cubic polycrystalline sheets using a generalized Taylor‐type crystal plasticity model. The r‐values are predicted to be 1.04, 7.74 and 0.17 for the random, {111}〈uvw〉 and {001}〈uvw〉 textures, respectively. The {111}〈uvw〉 tex…
The reaction of AgNO3,4,4′-bipyridine(bpy)/flexible 1,2-di(4-pyridyl)ethylene(dpe),diphenic acid(H2da) in acetic acid/alcohol aqueous solution produces,respectively,block-like crystals of [Ag2(bpy)2(Hda)2](HAc)2 ·2H2O(1),and [Ag2(dpe)2(da)]·4H2O(2) at room temperature.Both the above-stated compounds consist of paralle…
To investigate the effect of Paris Saponin Ⅰ(PSⅠ) on the growth and apoptosis of hepatoma car-cinoma cell strain(SMMC-7721) and its mechanism in vitro.The proliferation-inhibiting effect of PSⅠ on SMMC-7721 cells was measured by MTT assay while the nuclear morphology of apoptotic cells was assessed by Hoechst 33528 st…