Materials Literature
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This paper illustrates the benefits of an integral feedback compensation control approach applied to a sugar precipitation process for Chinese medicine mixed solution. This relevant approach proposes setting point tracking for the crystal mass/concentration couple. In this purpose, a model dedicated to the stage cryst…
In this letter, we show by the theoretical analysis and computer simulation that the polarization of microstrip antenna can be changed using metamaterial with homogeneous constitutive parameters by applying the transformation optics approach, which is used to design the invisible cloak. We demonstrate that, the distri…
We present here an UV (266nm) photoemission setup dedicated to measure properties of conductive materials under DC extraction field as photocathodes. We have successfully tested copper, as reference material, and silicon samples. It allowed us testing photoemission properties of thin CVD nanodiamond films on silicon s…
The possibility of applying laser radiation for enhancing the working capacity of parts operating under simultaneous effect of loads different in character is considered. Features of forming the microstructure, thin crystalline constitution, and properties of normalized grade 40 steel on heating the surface layer by t…
Telah dilakukan sintesis TiO2 dengan metode logamterlarut asam dan penambahan 2 jenis polietilen glikol (PEG), yaitu PEG400 dan PEG1000. Serbuk logam murni Ti digunakan sebagai bahan dasar yang dilarutkan dalam HCl 37% untuk menyiapkan sampel tanpa PEG (TiNP) dan beberapa sampel lain disiapkan dengan menambahkan PEG40…
White phosphorus and yellow arsenic can be selectively activated with dimeric metal complexes, as described by M. Scheer et al. in their Communication on page 9077 ff. The resulting P4 and As4 butterfly complexes of iron and chromium are unprecedented. Surprisingly, they dimerize after photolytic activation or even at…
The electron beam-physical vapor deposition (EB-PVD) coatings were selected to analyze the fatigue life. Firstly the failure mechanisms of oxidation and thermal fatigue of TBCs were considered together. The weight of thermally grown oxide (TGO) were measured during oxidation experiments and modeled. Thermal fatigue ex…
Due to the rapid development of aerospace industry, the amount of cutting data is increasing. Establishing cutting database for aerospace industry is necessary. Therefore, this article designs the typical aerospace material database system. According to project requirements analysis and the conceptual design, nine fun…
The French-German Research Institute of Saint-Louis (ISL) has a long tradition in experimental research on the topic of electromagnetic acceleration using railguns. The main focus of this research is on the military application of these potent accelerators. At the ISL several railguns with different calibers are routi…
In this work we demonstrate the design, fabrication and characterization of ultrafast, surface-plasmon enhanced Au nanorod photofield emitter arrays. We present a quantitative analysis of charge yield from plasmonic Au nanorod arrays fabricated by high-resolution electron beam lithography and triggered by 35 fs pulses…
In the present work the influence of the metal atom (Ni, Au, Pt) and the peripheral substituents on the nonlinear optical response of some metal dithiolene complexes are investigated under nanosecond and picosecond, visible and infrared laser pulses. The nonlinear optical properties of the dithiolenes were determined…
Field emission characteristics of CNT paste emitters were improved using the CNTs annealed at high temperatures of 1400~2000°C in Ar. The annealing considerably enhanced the crystallinity of CNTs, as indicated by an increase of their IG/IDratios and TGA oxidation temperatures. With such highly crystalline CNTs engaged…
Conventional solar cells collect photons from the solar radiation in p-n junctions. Their efficiency is constrained by the Shockley-Queisser limit, due to blackbody radiation, spectral loss, excessive energy of the absorbed photons, and recombination loss. As of August 2013, the highest efficiency achieved by a single…
\nCelem artykułu jest przedstawienie różnic w mikrostrukturze złącza spawanego szyny podsuwnicowej A75 w zależności od miejsca prowadzenia obserwacji. Szyna ta wykonana została ze stali 900A. Miejscami prowadzenia obserwacji były: materiał rodzimy, strefa wpływu ciepła a także spoina w obszarach znajdujących się w sto…
The development of a high-performance oxygen electrode for SOFCs in order to achieve high power density at a stack level is still challenging. It is important to emphasize the factors controlling the efficiency of the cathode. Over the intrinsic electro-catalytic activity of the cathode material itself toward the oxyg…
A significant portion of patients suffering from amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD), two diseases commonly seen in comorbidity, carry an expanded non-coding hexanucleotide repeat in the C9orf72 gene, a condition commonly referred to as c9FTD/ALS. We and others have demonst…
Some metals such as Ag and Hg are well known to have intrinsic antibacterial properties, but these metals are also toxic. X. Jiang and co-workers report a new class of nontoxic AuPt bimetallic nanoparticles with potent antibacterial properties in their Communication on page 8127 ff. The antibiotic mechanism includes t…
In order to analyze the partial discharge of void defect discharge in solid insulator, for the PD problems that at home and abroad simulation model can’t objectively reflect the physical process of partial discharge. Based on classical three capacitor equivalent-circuit model, the change of the electric field intensit…
N30K10T3 and N28K10T3 invar alloys are studied. After water quenching from 1150°C, they consist of supersaturated solid solutions, which can decompose in aging in the temperature range 500–700°C with the precipitation of intermetallic Ni 3 Ti nanoparticles. It is shown that the decomposition can be controlled by measu…
Copper manganite thin films were fabricated on SiNx/Si substrate by metal organic decomposition (MOD) process. They were burned-out at 400℃ and annealed at various temperatures (400∼800℃) for 1h in ambient atmosphere. Their micro-structure and negative temperature coefficient of resistance (NTCR) characteristics were…