Materials Literature
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Cr-C system is an important protective coating material for its high hardness, good corrosion resistance and electrical conductivity. It is also a typical eutectic system, where all stable phases are involved in the eutectic reactions. According to our previous work, binary eutectic liquids satisfy the dual-cluster sh…
Die vorliegende Arbeit wendet sich an Ingenieure und Wissenschaftler, die sich mit der Entwicklung trockenlaufender Tribosysteme unter extremen und wechselnden Umgebungsbedingungen befassen. Angetrieben durch das Ziel ein leistungsstarkes, vakuumfähiges und zugleich feuchteresistentes Dünnschichtsystem bereitzustellen…
Due to the weak van der Waals interaction between GaN epitaxial layer and graphene substrate, GaN grown on graphene has attracted considerable attention in recent years, benefited from the possibility to grow epitaxial material without any necessity to satisfy the requirement for the lattice matching between the epita…
Batubara yang diproduksi harus sesuai dengan spesifikasi yang diinginkan konsumen. Apabila tidak sesuai dengan spesifikasi maka batubara harus dilakukan proses blending. Dengan menggunakan metode simpleks, proporsi masing – masing jenis batubara yang akan diblending dapat diketahui. Pada batubara BA-67 dilakukan blend…
International audience
The magnetism of two-dimensional material is an important research topic. In particular, the long-range magnetic order of two-dimensional material is of great significance in theoretical research and practical application. According to the Mermin-Wagner theory, the isotropic Heisenberg model in a two-dimensional syste…
Resumen del trabajo presentado al 13th International Workshop on Magnetism and Superconductivity at the Nanoscale, celebrado en Comarruga (España) del al 7 de julio de 2017.
A photocathode prepared using the photocatalyst (ZnSe)₀.₈₅(CuIn₀.₇Ga₀.₃Se₂)₀.₁₅ in powder form, and modified with CdS/ZnS overlayers and a Pt catalyst, exhibits a photocurrent of 4.3 mA cm⁻² at 0 VRHE under AM 1.5G simulated sunlight. The photocathode was capable of utilizing photons up to 900 nm, while the onset pote…
Graph games provide the foundation for modeling and synthesis of reactive processes. Such games are played over graphs where the vertices are controlled by two adversarial players. We consider graph games where the objective of the first player is the conjunction of a qualitative objective (specified as a parity condi…
Исследовано влияние температуры и типа растворителя на растворимость тяжелых полициклических ароматических соединений. Предложены перспективные пары растворитель – растворенное вещество. Определены растворители, непригодные для автоклавного метода выращивания кристаллов кубовых красителей.
A theoretical investigation on the structural stability, electronic, vibrational, and thermodynamic properties of the strontium apatites Sr₁₀(PO₄)₆X₂ (X = F, Cl, Br) is systematically conducted by the first-principles calculations. Results of cohesive energies and formation enthalpies suggest that the thermal stabilit…
Abstract. Menaquinone -7 (MK-7) is the key form of vitamin K used as a dietary supplement and its production revolves around Bacillus subtilis natto. Current fermentation strategies, which suggest static fermentations without aeration and agitation, can be problematic for large scale MK-7 production due to biofilm for…
In spite of the many advantages that promote biomass as a renewable energy source, its combustion emits certain pollutants, as any other fuel. Although these negative effects are less pronounced compared to the combustion of fossil fuels, they need to be identified and controlled. The nitrogen oxides (NOx) emission ge…
Le long de l’axe transvolcanique mexicain qui traverse le pays d’est en ouest, se trouvent des sols d’origine volcanique possédant un ou plusieurs horizons indurés, appelés localement tepetates. Sous l’effet de l’érosion hydrique, ils peuvent affleurer à la surface. Du fait de leur compacité, de leur stérilité biologi…
In this paper we present a novel and original four channel front-end developed for a beam position monitor (BPM) system. In this work, we demonstrate for the first time the continuous calibration of the system using a pilot tone for both beam current dependency and thermal drift compensation, eliminating the need for…
The ability to modify the surfaces of polymers and impart desirable functionalities without affecting the bulk-mediated physical properties is vital for advanced materials development. Photochemical approaches to surface modification are particularly attractive as they minimize the need for use of hazardous materials…
A detailed analysis has been undertaken of the mechanisms of reinforcement of polymer-based nanocomposites by graphene for a variety of different polymer matrices ranging from rigid polymers to elastomers. A unifying theory has been developed based upon shear lag analysis and it will be shown that this is able to accu…
In this study, the degradation of Polylactic acid and its impact on their properties were analyzed using different characterization techniques. The biological and thermal degradation of PLA was carried out in different climatic conditions for a period of 3 to 8 months. All the degraded samples were mechanically charac…
In this work, magnetic alginate was synthesized by encapsulating of Nickel Zinc Ferrite nanoparticle within Ca-alginate.The synthesized magnetic alginate was modified by ethylenediamine using microwave radiation to remove anionic dye from wastewater.The characteristics of magnetic nanoparticle, magnetic alginate and m…
粘着テープのピール強度におよぼす剥離角度の影響について，糸曳き現象の観察から検討した。架橋剤濃度を変化させたアクリル架橋系粘着剤のピール試験を，剥離角度30～180°の範囲で行った。架橋剤濃度に依存して糸曳き形状は変化したが，いずれも120～150°付近で剥離の進行速度が最も速くなった。つまり，この角度付近でピール強度が低くなることが示された。特定の架橋剤濃度の粘着剤について幅広い歪速度の範囲で引張試験を行って応力－歪カーブを測定し，IgorProソフトによる解析から幅広い歪と歪速度に対する応力の等高線図を作成した。この図と糸曳き長さの測定結果から，糸曳きのフィブリル中に発生する応力を算出した。剥離の最先端のフィブリルに発生する応…