Materials Literature
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Kickxia ramosissima (Wall.) Janch. (Scrophulariaceae) is a small herb that is highly appreciated as a traditional medicine in the Indian subcontinent [1 – 2]. The scientific data reporting its constituents are poor and therefore the present investigation was undertaken to discover the main constituents. A double macer…
Demand for Fossil fuels has been increasing tremendously which cause environmental threat. For this reason a numerous studies are ongoing for renewable sources of energy worldwide. This paper investigates the effect of using TBC to diminish emissions from engine exhaust specifically nitrogen oxide and to augment the p…
Several reviews appeared in the last years to emphasize the unique properties showed by gold metal when the particle size falls in the nanometer range [1-5]. Au nanoparticles (NPs) have found uses in ceramics, medicine, and other areas. Among them the most exciting and growing field of application is undoubtedly cataly…
본 연구에서는 HPC (hydroxypropyl cellulose)와 TEMPO 산화된 셀룰로오스 나노섬유(Tempo-oxidized cellulose nanofibrils, TOCN)가 보강된 복합필름을 제조하였다. 복합필름의 기계적, 열적 특성을 관찰하기 위해 인장강도 및 열중량 분석기(TGA)를 측정하였다. HPC/TOCN 복합필름에서 TOCN의 함량이 1 wt%에서 5 wt%까지 증가할수록 인장강도와 인장탄성계수는 직선적으로 증가하는 경향을 보였다. 그러나 TGA 분석 결과, TOCN의 함량에 관계없이 HPC/TOCN 복합필름의 열 안정성은 거의 차이가 없었…
We demonstrate that the experimentally obtained photocurrent density (mA/cm 2 ) of a WO 3 based photoelectrochemical cell decreases as a function of increasing photoactive area. This trend is predominantly caused by a non-linear decrease in resistance of the interface between the conducting FTO electrode and the photo…
Magnetic properties of anion-substituted solid solutions CuCr1.5 + x Sb0.5–x S0.5Se3.5 (x = 0–0.5) have been studied in the temperature range 5–300 K and in magnetic fields up to 10 kOe. Effective magnetic moments and Curie and Curie–Weiss constants have been determined. The increase in asymptotic Curie temperature wi…
In this study, different aluminas were obtained by precipitating Al(NO3 )3·9H2O with different concentration of aqueous solution of ammonium carbonate. The obtained aluminas were treated by 50 (vol/vol) % ammonia via low temperature immersing and high temperature hydrothermal treatment, respectively, then, the treated…
In some cold areas/regions, ice accumulation is harmful to aircrafts, highways and power lines. To overcome this challenge, many researchers have focused on developing anti-icing surfaces. In this paper, liquid crystal compound Cholest-5-en-3-ol(3β)-4-(2-propenyloxy)benzoate was synthesised, and a liquid crystal surfa…
Objective: The present study was aimed to develop and evaluate quantum dots (QDs) as a carrier for delivery of 5-fluorouracil (5-FU). Methods: This research work includes a synthesis, characterization and in vitro study of 5-fluorouracil (5-FU) QDs. Zinc oxide QDs were synthesized, and the drug was loaded on them. The…
The effect of dissolved poly(lactic acid) (PLA) on the solubility of gases (CO 2, N 2, and He) in dichloromethane (CH 2 Cl 2 ) was investigated, between 288 and 303 K, by measuring the equilibrium pressure in a closed vessel containing a gas and CH 2 Cl 2 solutions of different types (molecular weights) and concentrat…
Abstract This paper describes the synthesis and electrochemical properties of mesoporous titanium oxysulfides prepared through the chemical treatment of pristine mesoporous titanium oxide under various synthesis conditions. The materials were doped with sulfur by using hexamethyldisilathiane (HMDST), a strategy that w…
We propose a method and optical design for direct visualization of label-free detection. The system, similar to a tiny spectral analyzer, is composed of a nanostructure-based surface plasmon resonance chip, linear polarizer and 532 nm laser light source. The full-width-at-half-maximum bandwidths of the enhanced surfac…
We report the first example of an ionic graphene salt containing boron. An anionic charge is introduced to the graphene surface by means of 7,8-nido-[C2B9H11](-) carborane clusters covalently and electronically bound to the graphene lattice, and this new material was isolated as its Cs(+) salt.
Infrared spectra of Ne-C2D2 are observed in the region of the ν3 fundamental band (asymmetric C-D stretch, ≈2440 cm(-1)) using a tunable optical parametric oscillator to probe a pulsed supersonic slit jet expansion from a cooled nozzle. Like helium-acetylene, this system lies close to the free rotor limit, making anal…
Probe-based data storage attracted many researchers from academia and industry, resulting in unprecendeted high data-density demonstrations. This topical review gives a comprehensive overview of the main contributions that led to the major accomplishments in probe-based data storage. The most investigated technologies…
Connections between metals and heterogeneous solid state materials form buried interfaces. These ubiquitous structures play an essential role in determining the performances of many nano- and microdevices. However, the information about the chemistry, structure, and properties of these real interfaces is intrinsically…
Among candidates for chemical hydrogen storage in proton exchange membrane (PEM) fuel cell automotive applications, ammonia borane (AB, NH 3 BH 3 ) is considered to be one of the most promising materials due to its high hydrogen content of 14–16 wt % below 200 °C. Motivated by our previous study based on a model slurr…
Potassium and phosphorus represent inorganics commonly found in biomass and can significantly affect catalytic gasification of biomass. The alkaline and acidic nature of potassium and phosphorus, respectively, can introduce different reaction chemistries. In this paper, the effects of potassium and phosphorus on Rh ca…
Efisiensi pemakaian energi untuk suatu kebutuhan harus dilakukan agar pemborosan energi dapat dihindarkan dengan melakukan pemilihan dan pemeliharaan peralatan logam. Korosi menjadi permasalahan utama pada industri minyak bumi dan gas karena dapat menghambat proses produksi. Korosi retak tegang (SCC, Stress Corrosion…
An innovative design of magnetic coupler for shaft speed amplification is proposed and verified by experiments. The structure of proposed magnetic coupler is similar to an infinite-stage gearbox. In addition, the mathematical model of flux density is derived to look into the equation of adjustable gear ratio and effec…