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。
We report the first synthesis of step-growth aromatic polyamide (PA) aerogels made using amine end-capped polyamide oligomers cross-linked with 1,3,5-benzenetricarbonyl trichloride (BTC). Isophthaloyl chloride (IPC) or terephthaloyl chloride (TPC) were combined with m -phenylenediamine (mPDA) in N -methylpyrrolidinone…
Optical nanoantennas tailor the transmission and reception of optical signals. Owing to their capacity to control the direction and angular distribution of optical radiation over a broad spectral range, nanoantennas are promising components for optical communication in nanocircuits. Here we measure wireless optical po…
Iron oxide nanoparticles were prepared using the simplest and most efficient chemical route, the coprecipitation, in the absence and the presence of three different and widely used surfactants. The purpose of this study is to investigate the possible influence of the different surfactants on the structure and therefor…
Organic–inorganic halide perovskite (OIHP) compounds are very interesting materials for device application in, for example, solar cells, electro-optics, and electronic circuits. In this report, we investigated OIHPs reported as CH 3 NH 3 PbI 3– x Cl x (MAPbI 3– x Cl x ) and CH 3 NH 3 PbI 3 (MAPbI 3 ) prepared from sol…
There are significant controversies on the antibacterial properties of graphene oxide (GO): GO was reported to be bactericidal in saline, whereas its activity in nutrient broth was controversial. To unveil the mechanisms underlying these contradictions, we performed antibacterial assays under comparable conditions. In…
Joint replacement is a major orthopaedic procedure used to treat joint osteoarthritis. Aseptic loosening and infection are the two most significant causes of prosthetic implant failure. The ideal implant should be able to promote osteointegration, deter bacterial adhesion and minimize prosthetic infection. Recent deve…
SUMMARY: Today's graphics processing units (GPUs) compose the scene from individual triangles. As about 320 triangles are needed to approximate a single sphere-an atom-in a convincing way, visualizing larger proteins with atomic details requires tens of millions of triangles, far too many for smooth interactive frame…
The nanocrystalline materials for hydrogen storage offer a breakthrough in prospects for practical applications. Their excellent properties are from the combined engineering of many factors: alloy composition, surface properties, microstructure, grain size and others. Nanoengineering can speed up the kinetics, lower t…
Bent-core molecules with a linear alkyl chain in the bay position (anchor shaped molecules) form new liquid crystalline phases combining periodicities with different coherence lengths in distinct directions; in these LC phases the molecules are organized on average orthogonal in modulated layers (ribbons or patches) w…
Nonoxide S i CN hollow nanospheres were prepared from a block‐copolymer comprising of a precursor block and a sacrificial block. The copolymer was first synthesized and then self‐assembled into core‐shell structured micelles with the sacrificial block forming the core and the precursor block forming the shell. The mic…
Nd:YVO4 laser ablation of graphene films on glass and poly(ethylene terephthalate) substrates, Lee, Jeong Min, Lee, Jung-Hun, Han, Jae-Hee, Yoo, Ji-Beom, Lee, Jong-Ho, Cho, Seongjae, Kwon, Sang Jik, Cho, Eou Sik
The experimental free ion 4f12 energy levels for Yb4+ have been fitted to the standard f-shell free ion Hamiltonian, which includes the major electrostatic and spin–orbit terms as well as various minor contributions like two-body, spin–spin, spin–other-orbit and electrostatically correlated spin–orbit interactions. Th…
Metallic strip gratings (MSG) have different applications, ranging from printed circuits to filters in microwave domains. When they are under the influence of an electromagnetic field, evanescent and/or abnormal modes appear in the region between the traces, their utilization leading to the development of new electrom…
In this study, diisononyl phthalate (DINP), a conventional plasticizer of poly(vinyl chloride) (PVC), was partially replaced by a polymeric plasticizer, poly(butylene succinate) (PBS), in order to reduce the leaching out of low‐molecular‐weight plasticizer from the plasticized PVC. Samples were prepared by melt mixing…
This paper deals with a new inverse problem of estimating textile fabrics thickness based on a one-dimensional steady-state heat and moisture transfer model. First, we give an existence and uniqueness theorem for the solution to the heat and moisture transfer problem in the Banach space. Then we present an inverse pro…
This paper presents the design and experimental evaluation of discrete time sliding mode controller using multirate output feedback to minimize structural vibration of a cantilever beam using shape memory alloy wires as control actuators and piezoceramics as sensor and disturbance actuator. Linear dynamic models of th…
Various types of mixed-valent metallodendrimers and star-shaped macromolecules containing ferrocenyl, biferrocenyl, or other redox-robust iron groups with rigid or flexible tethers of short and long lengths mostly studied in the authors’ laboratory including the class type in terms of Robin-Day classification and thei…
The purpose of this work was to determine the suitability of using instrumentation utilizing sapphire optical fibers in a high‐temperature gamma radiation environment. In this work, the broadband (500–2200 nm, or 0.56–2.48 eV) optical attenuation of commercially available sapphire optical fibers was monitored in situ…
The results of an investigation on the Er doping of porous silicon are presented. Electrochemical impedance spectroscopy, optical reflectivity, and spatially resolved energy dispersive spectroscopy (EDS) coupled to scanning electron microscopy measurements were used to investigate on the transient during the first sta…
Bismuth layer structured ferroelectric ceramics of (1–x)CaBi2Nb2O9–xNa0·5Bi2·5Nb2O9 [(1–x)CBNO–xNBNO, 0≤x≤1·0] ceramics were obtained by conventional solid state reaction method. The effects of Na0·5Bi2·5Nb2O9 (NBNO) addition on the microstructure and electrical properties of ceramics have been studied. X-ray diffract…