Materials Literature
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We have performed magnetotransport measurements on a multi-layer graphene flake. At the crossing magnetic field Bc, an approximately temperature-independent point in the measured longitudinal resistivity ρxx, which is ascribed to the direct insulator-quantum Hall (I-QH) transition, is observed. By analyzing the amplit…
Porous butyl methacrylate/octadecyl acrylate (BMA/OA) copolymers were first synthesized by suspended emulsion polymerization and evaluated for oil absorbency application. Effects of initiator, cross-linking agent, precipitator, dispersant agent, and emulsifier, water/oil ratio on oil absorbency of BMA/OA copolymers we…
We have collected and analyzed the values of thermoelectric parameters of thermoelectric materials and on this basis calculated the energy resolution and photon count rate of the Thermoelectric Nanowire Single-Photon Detector (TNSPD). It is concluded that the TNSPD can achieve higher specifications as compared with th…
Abstract ZnS films are formed by spray method using various zinc sources such as zinc acetate (Zn(CH 3 COO) 2 ), zinc sulfate (ZnSO 4 ), zinc nitrate (Zn(NO 3 ) 2 ), zinc iodide (ZnI 2 ), zinc chloride (ZnCl 2 ), zinc acetyl (Zn(acac) 2 ). ZnS film using zinc iodide is sharp spectrum and zinc sulfate is broad spectrum…
ABSTRACT A series of sodic and organophilic clays with different d ‐spacings was added to a polymeric matrix of poly (ethylene‐ co ‐butyl acrylate) EBA‐30, containing an intumescent formulation of ammonium polyphosphate (APP) and pentaerythritol (PER), in order to investigate the influence of the d ‐spacings of the cl…
In this paper, we introduce a numerical simulation of a phase detecting surface plasmon resonance (SPR) scheme based on spectral interference. Based on the simulation, we propose a method to optimize various aspects of SPR sensors, which enables better performance in both measurement range (MR) and sensitivity. In the…
Molecular dynamics simulations have been performed to prepare the structural model of BaTi2O5 glass. The total correlation function obtained from the structural model agreed rather well with both the X-ray and neutron diffraction data. We found distorted 4-, 5-, and 6-coordinated Ti atoms whose distortion increases wi…
We assess the ability of the Holland model to accurately predict phonon-phonon relaxation times from bulk thermal conductivity values. First, lattice dynamics calculations are used to obtain phonon-phonon relaxation times and thermal conductivities for temperatures ranging from 10 K to 1000 K for Stillinger-Weber sili…
By the ferromagnetic resonance and magnetometry measurements in a broad temperature range, it is found that the 220-fiber textured Ni51.4Mn28.3Ga20.3 (at. %) film of 100 nm thickness deposited onto NaCl(001) exhibits in the martensitic state an easy-plane magnetic anisotropy. This is in a drastic difference with the i…
ABSTRACT The knowledge of the factors involved in the water transmission through collagen fibrous network of skin and leather is essential in the manufacture of materials that will give improved service and maintain a sufficiently high level of breathability and permeability to assure comfort to the wearer. The study…
ABSTRACT In this study, cellophane (PT) multilayer films were prepared by coating with different thickness of poly(ε ‐ caprolactone) (PCL) and chitosan (CH), and its effects on barrier and mechanical properties were evaluated. It was shown that the PCL/PT/PCL and PCL/CH/PT/CH/PCL multilayer films exhibit much better w…
Abstract We investigated the magnetic properties of polycrystalline Co 3 Sn 2 S 2‐ x Se x (0≤ x ≤1.2) to ascertain the magnetism of the metallic ferromagnet Co 3 Sn 2 S 2 . In Co 3 Sn 2 S 2‐ x Se x , T C and magnetization gradually decrease with increasing x , but there is no magnetic phase transition from ferromagnet…
Floating aqueous droplets were formed at oil-air interface, and two stable configurations of (i) non-coalescent droplet and (ii) cap/bead droplet were observed. General solutions for energy and force analysis were obtained for both configurations and were shown to be in good agreement with the experimental observation…
ZnO one-dimensional nanostructures were synthesized using the vapour-liquid-solid (VLS) process. Highly C-axis oriented ZnO nanowires, exhibiting a gold droplet on their top, were observed by scanning electron microscopy. Growth mechanisms are discussed, and the issue of supersaturation and precipitation of zinc in th…
The effects of excess SrO on the thermoelectric properties of n-type SrTiO3 have been investigated through a comparative study of different polycrystalline ceramic samples. These include Gd-doped SrTiO3 with varying SrO, nominally in the form of Ruddlesden-Popper phase of SrO(SrTiO3)n with n = 5, 10, and 20, and previ…
One common way to measure asphere and freeform surfaces is the interferometric Null test, where a computer generated hologram (CGH) is placed in the object path of the interferometer. If undetected phase errors are present in the CGH, the measurement will show systematic errors. Therefore the absolute phase of this el…
Abstract The Alba field is located in Block 16/26 on the UK continental shelf. It has been producing hydrocarbons since 1994 from a loosely consolidated sandstone reservoir. As the field has aged, seawater injection has been used as pressure support and consequently the Alba reservoir sits in a mild barite produced wa…
In bacteria, glycogen or oligosaccharide accumulation involves glucose-1-phosphate partitioning into either ADP-glucose (ADP-Glc) or UDP-Glc. Their respective synthesis is catalyzed by allosterically regulated ADP-Glc pyrophosphorylase (EC 2.7.7.27, ADP-Glc PPase) or unregulated UDP-Glc PPase (EC 2.7.7.9). In this wor…
Proses pengerjaan logam adalah salah satu hal terpenting dalam pembuatan komponen mesin, terutama proses pengerjaan logam dengan mesin bubut. Sehingga diperlukan inovasi yang terus menerus untuk meningkatkan kualitas hasil produksi. Ada beberapa cara yang bisa dilakukan, misalnya dengan pemilihan jenis pahat, kedalama…
Novel structures of an near-infrared (NIR) tetraarylazadipyrromethene (aza-BODIPY) series have been prepared. We designed the core structure containing two amido groups at the para-position of the aromatic rings. The amido group was incorporated to secure insensitivity to pH and to ensure a bathochromic shift to the N…