Materials Literature
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The influence of aqueous extract of Tridax procumbens leaves (TPL) on corrosion of aluminium in 0.5 NaOH solution was studied using chemical and electrochemical techniques. It was found that the inhibition efficiency increased with the increase of Tridax procumbens extract upto 900 ppm. Beyond this concentration there…
Humans have perceived the surface characteristics of an object by sliding their fingertips, slip of the fingertip can be measured through the contact deformation. The purpose of the study is to evaluate the surface characteristics of an object using a quantitative evaluation of the contact deformation. The index of th…
This paper presents on ionic conductivity of MG30-PEMA blend solid polymer electrolytes (SPEs) prepared by solution cast technique. The analysis has shown that conductivity increases with the increasing salt composition. It is observed via x-ray diffraction analysis that the crystallinity of the sample decreased with…
Material komposit partikulat dari campuran serbuk polimer dan bukan polimer seperti campuran silika-PE dan besi cor-PE sudah pernah diteliti oleh peneliti sebelumnya. Pembuatan komposit dilakukan dengan metode layer manufacturing diantaranya menggunakan mesin MMD-Is. Komposit yang dihasilkan belum diteliti untuk mold…
6-phenylpteridine-2,4,7-triamine (Triamterene) is used in the treatment of edema associated with congestive heart failure. Conformational analysis and geometry optimization of triamterene was performed according to the Hartree- Fock (HF) calculation method by ArgusLab 4.0.1 software. Heat of Formation of procarbazine…
In this study, we reported on a high sensitive 2-axial force sensor with cantilever structure for blood pressure pulse wave measurement. Our sensor consists of 2 strain sensors which were embedded in cantilever structure of elastic body. When the normal force is applied, cantilever structure bends. When the shear forc…
Комплексом физических методов проведено исследование морфологии, структурного и электронного состояния нанодисперсных феррит-хромитов меди с различным соотношением Cr/Fe, прокаленных при 900°С в среде воздуха. Методом ПЭМВР изучены морфология, степень однородности химического состава и степень совершенства формирующих…
This paper presents gel beads dispersed gold nanoparticles for hyperthermia therapy application. The gel beads can generate self-heating thanks to the absorbed photo energy by gold nanoparticles dispersed in alginate gel beads. Gold nanoparticles have strong absorbance in the near infrared light of wavelength 808nm an…
Nowadays, the nature fiber in production of paper is one of the good alternatives for reduce dependency in wood tree resources. Demand on paper increase time to time according their need and want. This situation can causes felling of tree uncontrolled and contribute ecosystem in out of balance. Therefore, a study on t…
The enhanced thermal, electrical and mechanical properties can be explored by polymer based nanocomposites. In the present work, initially nanocrystalline Zinc Oxide particle is successfully synthesized at room temperature by sol gel method using Zinc acetate and Oxalic acid. The material is characterized using XRD, t…
This paper presents the aqueous observation of three-dimensional information using scanning electron microscope- computed tomography (SEM-CT) inside an environmental-SEM (E-SEM). It is required to control the sample temperature for an aqueous condition inside the E-SEM. In this paper, a cooling system was installed in…
Nowadays, the development of new advanced technologies in the field of information storage and electronic devices requires a great effort in improving the performance of magnetic materials that are at the basis of the device’s functioning. Among the magnetic materials, chemically ordered binary alloys (L10, L12) are o…
The integration of photonics with electronics still lacks a CMOS compatible light source. Germanium is an appealing material because of its quasi-direct electronic band structure. By applying tensile strain to Ge, the band structure can be changed to a direct gap structure favorable for light emission. We present a to…
Cost reduction is the key challenge for commercialization of fuel cell vehicles, and reduction of Platinum amount in catalyst layer without sacrificing performance is essential. To understand the effect of Platinum loading on the transport phenomena within the cathode catalyst layer, performance test and cyclic voltam…
본 연구에서는 그래핀에 존재하는 원천적 결함이 그래핀/폴리프로필렌 나노복합재의 계면 응집법칙에 미치는 영향을 분자동역학 전산모사를 통해 고찰하였다. 그래핀 내 대표적 결함인 Thrower-Stone-Wales의 수가 5개, 10개, 15개로 증가함에 따라 제 1모드와 제 2모드 계면 파괴에서의 변위-견인력 관계를 준 정적 방법을 통해 도출하였다. 그래핀과 폴리프로필렌 간 계면의 열림과 미끄러짐 거동을 묘사하기 위해 견인력을 유발시키는 고정단 원자들의 변위를 각각 1m/sec 와 10m/sec로 부여한 이후 고전적인 비리얼 이론에서 정의된 응력값의 변화를 매 변위마다…
Pekerja Cold A2 PT. Asahimas Flat Glass Tbk, Sidoarjo terpapar resiko dan bahaya di tempat kerja, mengingat sifat kaca yaitu mudah pecah, berat dan tajam. Penggunaan APD akan dapat melindungi pekeja dari bahaya dan resiko tersebut. Penggunaan APD juga
Fibrous catalysts were prepared by an eggshell membrane-templating process and an electrospinning process. The microstructure and catalytic performances in methane reforming were studied as functions of preparation parameters. The fibrous catalysts combines the advantages of porous catalysts and non-porous catalysts,…
In this study Vanadium Redox Flow Batteries will be investigated. Nafion type membranes are mostly being used as separator. Due to the high cost and low H+ V selectivity of Nafion, sulfonated poly-ether-ether-ketone (SPEEK) membranes were produced. SPEEK has lower costs and higher selectivity between H+ V ions which m…
Nitinol is an equiatomic binary alloy of nickel and titanium. It has been extensively used since 1970s due to its unique properties of shape memory effect and super-elasticity. Nitinol also has excellent physical and mechanical properties, and together with its good biocompatibility, Nitinol has been widely applied in…
Advanced glass and carbon-fiber thermoset based composites have infiltrated into leading markets such as aerospace, automobile, marine, electronics and sports industry over the last century. The rapid rise in the demand due to the high strength/unit weight of these materials. These materials have enhanced mechanical p…