Materials Literature
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Abstract Lowering water temperatures in the cleaning step of a dishwashing program to 30°C leads to reduced energy consumption and decreased cleaning performances on persistently soiled dish- and cookware and of fatty soilings on hydrophobic surfaces. This study focusses on the question if the observed decline of the…
Li 2 O‐stabilized β″‐alumina powder has been synthesized by the solid‐state and double‐zeta processes. It was shown that by the double‐zeta process, the β″‐alumina fraction of sintered samples was 10% higher, showing around 99% of β″‐alumina fraction. Using β″‐alumina powder produced by the double‐zeta process, the si…
Abstract Since the washing performance of household washing machines must comply with certain limit values, like the ecodesign requirements in Europe, the method of washing performance evaluation is crucial. Today, the washing performance is defined as an overall washing performance in IEC 60456:2010, constituting an…
Analisis kegagalan katup buang (exhaustvalve) pada mesin Pembangkit Listrik Tenaga Diesel (PLTD) dipengaruhi oleh bahan bakar akibat proses pembakaran tidak sempurna, pembebanan termal, peningkatan panas berlebih (overheated) dan kelelahan material yang terjadi pada daerah permukaan piringan katup berupa retakan, pata…
Two metal–organic supramolecular compounds, [Mg(H2O)6]·2FcCO2·2H2O (1) and [Mg(H2O)6]·2FcCOC6H4CO2·2H2O (2), were prepared by solvothermal synthesis. The solids exhibit non-covalent self-assembly and layered structures with unprecedented inverse lipid-like bilayer arrangements. Further investigations revealed that the…
Palladium supported on a strontium hydroxyl fluoride catalyst was synthesized by a one-pot fluorolytic sol–gel method. The prepared catalyst was characterized by various physicochemical techniques. The sol–gel method has led to the formation of a high surface area (57 m 2 g −1 ), mesoporous (pore diameter = 13.0 nm) c…
극심한 대기부식 환경에 설치된 강구조물은 사용기간 증가에 따라 발생한 부식손상에 따라 구조성능의 변화나 감소가 발생할 수 있다. 본 연구는 부식손상 특징에 따른 강관부재의 압축강도 성능 변화를 평가하기 위하여 강관 시험체에 인위적인 부식손상을 도입한 후 압축강도 평가시험을 통하여 부식손상에 따른 압축강도 변화 및 거동변화를 평가하였다. 부식손상의 경우 단면에 대한 국부적인 부식손상의 형태 및 위치의 영향이 있는 것으로 평가되었으며, 국부부식 위치와 부식손상으로 인한 단면이 변화부 주위에서 국부 변형에 의한 파괴가 발생하는 것으로 분석되었다. 또한 본 연구결과를 통하…
Abstract Currently there is a lack of knowledge on how to scientifically and rapidly screen new detergent formulations. To address this, we employed the Quartz Crystal Microbalance with Dissipation technique which allows real-time acquisition of the cleaning process. Using an automated multichannel setup enabled rapid…
The microscopic reaction mechanisms for the water adsorption/dissociation and hydrogen generation processes on the α-Al 2 O 3 (0001) surface are clarified by using spin-polarized density functional theory with the projected augmented wave approach. The adsorptions of OH, O, and H species are also examined. Calculation…
Although a lot of in vitro and in vivo assays have been performed during the last few decades years for hydroxyapatite bioactive coatings, there is a lack of exploitation of real-time in vitro interaction measurements. In the present work, real-time interactions for a plasma sprayed hydroxyapatite coating were measure…
Ascorbyl palmitate was synthesized using a Celite-immobilized commercial lipase (Lipolase 100L) in dimethylsulfoxide (DMSO) as an organic solvent system. Lipase immobilized by surface adsorption onto Celite 545 matrix and subsequently exposed to 1 % glutaraldehyde showed 75 % binding of protein. The Celite-bound lipas…
A fusion construct between Citrine (a YFP variant) and human ferritin (H-chain) was recently shown to form supramolecular assemblies of micrometer size when expressed in mammalian cells. The assembly process is driven by weak hydrophobic interactions leading to dimerization of YFP. Protein assembly could be suppressed…
A seed-induced method was applied to synthesize a series of ZSM-5 aggregates using silicalite-1 (S-1) as seeds. The samples were characterized by several techniques and studied in the methanol-to-gasoline (MTG) conversion reaction in a continuous fixed-bed reactor. The results showed that the molar ratios of Na 2 O/Si…
Limitations of natural antioxidants include relatively low antioxidant activity, narrow range of food systems where the antioxidants are effective and limited thermal stability compared to synthetic antioxidants. In the present study, the phenolic extract of coconut oil cake (COCE) was tested for antioxidant activity-…
PURPOSE: The aim of this study was to determine the stability of computer-aided design and manufacturing (CAD/CAM) and prefabricated abutment by measuring removal torque before and after cyclic loading. MATERIALS AND METHODS: Three types of fixture and 2 types of abutments were used. Removable torque was measured afte…
The triplet excited-state formation efficiency in a flavin derivative was increased by the introduction of iodine into the molecular framework. The transient absorption measurements showed that the intersystem crossing rate was 1.1 × 10(10) s(-1), significantly faster than in the parent flavin compound. Furthermore, t…
In order to investigate the effects of microwave curing on the microstructure of the interfacial transition zone of mortar prepared with a composite binder containing glass powder and to explain the mechanism of microwave curing on the improvement of compressive strength, in this study, the compressive strength of mor…
Abstract Washing machines should not only deliver good removal of stains, but also take care of the garments. Mechanical action produced by the washing machine has a twofold impact: It supports the removal of stains, but it also influences the structure of the textiles negatively and is, therefore, critical to textile…
Abstract This paper discusses consumers’ wool washing habits and the possibilities for improving the laundering process with the aim of reducing the total environmental impacts of clothing consumption. Wool has great potential when compared to other fibres, such as cotton, especially when the energy per day of use is…
We recently discovered a biosynthetic system using a novel amino group carrier protein called LysW for lysine biosynthesis via α-aminoadipate (AAA), and revealed that this system is also utilized in the biosynthesis of arginine by Sulfolobus In the present study, we focused on the biosynthesis of lysine and ornithine…