Materials Literature
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Studying biological samples with scanning electron microscopy has specific requirements for their preparation. Sample drying is a particularly critical operation for objects such as cultured cells. The requirement for damaging drying step can be eliminated using environmental scanning electron microscopy. This study c…
U uvodnom dijelu rada prikazan je pregled postupaka i preporuka za određivanje dinamičke izdržljivosti brodske konstrukcije. Detaljno je opisana metoda proračuna dinamičke izdržljivosti pojednostavljenom metodom prema uputama klasifikacijskog društva Det \\Norske Veritas. Postupak je primijenjen na primjeru spoja uzdu…
We demonstrate electric bistability induced by the positive feedback of self-heating onto the thermally activated conductivity in a two-terminal device based on the organic semiconductor C60. The central undoped layer with a thickness of 200 nm is embedded between thinner n-doped layers adjacent to the contacts minimi…
The inhibitive influence of salicylideneaniline (a Schiff base) on the corrosion of aluminium in 1.0 N sodium hydroxide was studied by weight loss, potentiodynamic polarisation and electrochemical impedance measurements. The inhibition efficiency of the compound increases with its increasing concentration. The additio…
ALBA synchrotron de troisième génération (Barcelone, Espagne) APS Advanced Photon Source (synchrotron de troisième génération, Argonne, USA) BAG Block Allocation Group BESSY Berliner Elektronenspeicherring-Gesellschaft für Synchrotron Strahlung (Berlin, Allemagne) BLISS Beam Line Instrument Software Support BLOM Beam…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation V. M. Braun, A. Khodjamirian; Soft contribution to B→γℓνℓ from dispersion relations and duality.…
本實驗將鎂-鐵層狀雙層氫氧化物(Mg-Fe Layered double hydroxide)直接成長於SUS-316L不銹鋼表面。藉由極化測試進而驗證Mg-Fe LDH有助於抗腐蝕能力的提升，在腐蝕液為0.85M硫酸溶液的極化測試中發現，Mg-Fe LDH的腐蝕電流密度I(corr)明顯低於原材SUS-316L。二氧化碳曝氣量4.0 Kpa的試片實驗結果具I(corr)小於1.0(μA/cm2)，顯現Mg-Fe LDH使得SUS-316L不銹鋼原材具有更佳抗腐蝕性能力；另外，藉由二氧化碳曝氣量的大小觀察Mg-Fe LDH片狀結構成長的情形，由SEM結果顯示經曝氣量越大而成長Mg-Fe LDH片狀結構的尺寸也愈大，二氧化碳曝氣量會…
Deformation behavior of as-cast Al-3Mg-0.25Sc alloy was studied under compression at different strain rates ranging from 0.001 to 10s-1 in the temperature range 573-773 K. Processing maps were generated at different plastic strains to understand the deformation characteristics as a function of temperature and strain r…
In this study, nano-sized platinum particles were deposited on post surface modified carbon paper (SMCP) to improve the performance of the catalyst in fuel cells. \nThe structures and compositions of Pt on untreated carbon paper (Pt/UCP) andsurface modified carbon paper (Pt/SMCP) were investigated by field emissionsca…
The partial sums f3(z) of some extermal functions for various classes S ∗ , K and R of starlike functions, convex functions and functions with positive real part in the open unit disk U, respectively, are discussed. In general, the partial sums can not preserve the same character as the initial functions. The object o…
The reduction process of 6-benzylaminopurine (6-BAP), known as an adenine type of cytokinin, was investigated on mercury electrode by DC polarography [1, 2], cyclic and differential pulse voltammetry [2]. The aim of our contribution was the study of the effect of methanol content (1-20% v/v) and ionic strength (0.1- 1…
The authors demonstrate that the efficiency of protection of wooden structures, covered with paints and lacquer materials, from the influence of the environment, depends on the adhesion size. It is common knowledge that improvement of adhesion of capillary-porous materials to the wood, and, hence, the increase of the…
The mathematical model of an isothermal extract with an thinning of a wall of cylindrical thin walled preparations from anisotropic materials is given in the maple channel in a creep mode. Influence of technological parameters on the strained and deformed conditions and power modes of an isothermal extract with an uto…
The i¬-dependent optical refractive and extinction coefficients n and k of oxides thin layers (Sb2O4, SnO2, ZnO andWO3) have been determined from experimental measurement of reflection R(i¬) and T(i¬) transmission ratios within the Ultraviolet-Visible-Near-Infrared (UV/VIS/NIR) domain (300- 1800nm). This study a…
Ln(III) and Cu(II) complexes are utilized in medicine and preclinical research as magnetic resonance, optical or nuclear probes for diagnostics and/or for cancer treatment. For biomedical applications, such complexes should exhibit a high thermodynamic stability as well as kinetic inertness under physiological conditi…
The purpose of this work was to alleviate the water issue present in Nafion ®based PEM fuel cells operating at low relative humidity conditions by employing a hydrophilic substance COMP-1 in the electrode layer.This modified electrode was hypothesized to prevent the cell from dehydrating by retaining water in the cata…
This work is aimed on the study of relationship between mechanical properties, chemical composition and inner structure of nanocomposite n-TiC/a-C:H coatings. Furthermore the obtained results were used to optimize the preparation process and maesuring metodology.
4-(4-Nitrophenyl)urazole(4) was reacted with two equivalents of hexamethylene diisocyanate (HMDI)(5), isophorone diisocyanate (IPDI)(6) and tolylene-2,4-diisocyanate (TDI)(7), in DMF as a solvent to forming the related diisocyanates. The reaction of 4-(4-aminophenyl)urazole(1) with phthalic anhydride(2) in a mixture o…
Područje biomaterijala je izrazito interdisciplinarno područje unutar znanosti o materijalima. U ovom radu je pozornost posvećena samo jednom segmentu biomaterijala, ponajprije onome koji se bavi inženjerstvom materijala za izradu humanih medicinskih implantata. Trenutno postoji veliki broj dostupnih materijala za izr…
We present the results of DFT calculations of structure and vibration IR spectrum of hexamethylphosphoramide (HMPA). It is shown that the equilibrium configuration of the molecule HMPA has the symmetry C3. The characteristics of the calculated vibrational IR spectrum of HMPA generally adequately reproduce the experime…