Materials Literature
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LILIANA ROZEMARIE MANEA1,2*, ION SANDU2,3* 1 “Gheorghe Asachi” Technical University Iasi, Faculty of Textile and Leather Engineering and Industrial Management, 29 Dimitrie Mangeron Blvd., 700050, Iasi, Romania 2 Romanian Inventors Forum, Str. Sf.P.Movila 3, L11, III/3, 700089, Iasi, Romania 3 ”Alexandru Ioan Cuza” Uni…
In the last two decades, studies on organic molecules mimicking substances of fundamental importance in nature, like chlorophyll or hemoglobin, have attracted researchers’ attention. These molecules are building blocks for a family of materials also referred to as “organic semiconductors”. Such compounds can be implem…
Surface quality of the steel slabs in a Continuous Casting (C.C.) process is mainly determined by the stability of the Mold Level Control (MLC). Excessive mold level fluctuations lead to an additional machine scarfing process which is applied to the slabs to avoid surface defects. A conventional Proportional-Integral-…
The toxic effects of synthetic corrosion inhibitors have led to the search for naturally occurring substances which are not only readily available but are also environmentally friendly. Therefore, this study investigates the inhibition efficacy of acid extract of Groundnut Shell (GS) on mild steel corrosion in 1 M HCl…
The analysis of pilot studies of visco-elastic properties of the reinforced polyethylene used for production of the pipes applied in oil and gas production and transportation is carried out. The creeping assessment technique under loading of the reinforced polyethylene pipes which properties depend on temperature of t…
Pure-silica ZSM-22 particles with millimeter size were directly synthesized by adding polyurethane foam (PU foam) in ionic liquid-directed dry-gel-conversion process, where the dry gel was prepared under the unusual acidic condition for hydrolyzing the silica precursor with 1,3-alkylimidazolium ionic liquid as the str…
The research and development of biomedical polymers and con-trolled drug release systems are currently one of the most exciting sci-entific and technological fields, which have already made tremendousimpacts on modern healthcare and are further expected to make evengreater improvements on the quality of our human life i…
CIGS solar cell consisted of various films. In this research, we investigated electrode materials in Cu(In,Ga)Se2 (CIGS) cells, including Al-doped ZnO (ZnO:Al), intrinsic ZnO (i-ZnO), and Al films. The sputtered ZnO:Al film with a sputtering power at 200W showed the lowest series resistance and highest cell efficiency…
Predmetom diplomovej práce je polyfunkčný dom obdĺžnikového pôdorysu v meste Žilina. Objekt je štvorpodlažný a nepodpivničený. Funkčne je rozdelený na dve časti. Prvá časť je priestorom pre tri prevádzky v severovýchodnej časti 1NP, ku ktorým prilieha parkovisko určené pre tieto prevádzky. Tieto prevádzky nie sú proje…
Chemical exchange saturation transfer (CEST) MRI has been increasingly applied to detect dilute solutes and physicochemical properties, with promising in vivo applications. Whereas CEST imaging has been implemented with continuous wave (CW) radio-frequency irradiation on preclinical scanners, pulse-train irradiation i…
In this study, sixteen soil and vegetable samples from Tafila district were collected and analyzed from eight locations. Measurements of specific activity of natural gamma emitter radionuclides, 238 U and 235 U, in these samples using gamma spectrometry, with the help of Genie 2000 software. Measurements were used to…
The effects of Pb doping on the thermoelectric properties of Lu1� xPbxBaCo4O7 (x = 0.00, 0.02, 0.04, 0.06, 0.08, and 0.10) ceramic samples prepared by the solid-state reaction method were investigated from 390 K to 973 K. The results show that Pb doping can reduce the electrical resistivity remarkably, increasing the…
RESUMO Os esforcos de corte durante o torneamento de tarugos de alumina a verde e sua correlacao com aspectos superficiais da peca foram estudados em condicoes experimentais. A correlacao entre a forca de usinagem e a taxa de remocao de material e um parâmetro importante na definicao do projeto de produtos cerâmicos,…
The non-renewable source of petroleum based plastic such as Polyethylene (PE), calls for a need to look into this natural based polymer. Polylactic acid (PLA) is the promising synthetic polymer which is derived from the natural monomer lactic acid extracted from starch such as com starch; whereby need to compete as a…
Ce doped YAlO3 (YAP:Ce) is one of the excellent scintillators with many advantageous properties like fast decay (~30 ns), good light yield (20-25k photons/MeV), moderate density (5.3 g/cc) and proportional scintillation response. It is useful in various radiation detection applications like imaging, gamma-ray detector…
In the present work we have presented the synthesis of pure manganese oxide and iron and nickel mixed manganese oxide nanoparticles by using polyol approach. The samples were characterized by FE-SEM, EDS and XRD, size of pure MnO2 nanoparticles was 5.68 nm and 7.23 & 19.49 nm for Mn-Ni and Mn-Fe nanoparticles respecti…
Porous stainless steel (PSS) hollow fiber membranes have been fabricated by an immersion induced phase inversion and sintering technique. This paper is mainly focused on the sintering process. The influences of the sintering atmosphere as well as the sintering temperature and dwelling time on the microstructure, mecha…
У роботі за допомогою вдосконаленої технології отримання стабільного плазмового розряду в робочій\nкамері ВУП5М здійснено напилення тонких плівок карбону. Досліджено структуру та механічні властивості\nтонких плівок карбону. Установлено, що за цих технологічних умов утворюються аморфні структури карбону.\nВиявлено, що…
The aim of this study was to synthesize the ternary CoNiFe alloy thin films by electrodeposition technique at different potentials in a sulfate solution. The CoNiFe alloy thin films were electrodeposited on indium tin oxide (ITO) substrate. Voltammetric studies indicated potential region for deposition of cobalt, nick…
Background: Meranti wood sawdust (MWS) is a liglocellulosic materials that contains of three main components of polymer which are cellulose, hemicellulose and lignin. It is consist of > 29% of xylan that made up from pentose sugar xylose. Objective: To compare the production of xylose from Meranti wood sawdust (MWS) b…