Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Reticular synthesis To harness the richness of this 'crystal engineering', simple representations of complex structures are needed to guide understanding and design In some cases topological features, such as minimum ring size, provide good guides to expected material properties, especially for nanoporous materials su…
Sub-wavelength metamaterial structures are of great fundamental and practical interest because of their ability to manipulate the propagation of electromagnetic waves. We review here our recent work on the design, simulation, implementation and equivalent circuit modeling of metamaterial devices operating at Terahertz…
Вперше дослiджено вплив фiзико-хiмiчних факторiв формування тривимiрної хiмiчної сiтки термореактопласта при дiї сталих фiзичних полiв на кристалiчну структуру β-форми PbO. Проведений рентгеноструктурний аналiз композитiв на основi епоксидного полiмеру, оксиду свинцю та полiанiлiну показав утворення нової кристалiчної…
Синтезовано новi полiуретансечовини на основi полiоксипропiленглiколю та 2,4-,2,6-толуїлендiiзоцiанату з використанням дiамiнiв (1,6-гексаметилендiамiн або 4,4’-дiамiнодифенiлметан) як подовжувачiв макроланцюга з фiзично iммобiлiзованим фолат-кон’югованим фероценом. Проведено IЧ спектроскопiчнi та фiзико-механiчнi дос…
With the increased attention the efficiency of solar heating facilities and the performance of additional equipment are becoming increasingly important. In the present study, thinking is giving on the heat transfer characteristics of solar air heater with some modifications in design to increase air travel length. Per…
Device modelling and characterization are indispensable tools in the design of photovoltaic devices. In the contribution we present two challenging issues related to accurate modelling and efficient characterization of light scattering at nanotextured interfaces or other nanophotonic structures used in solar cell tech…
Surface textures can significantly improve anti-reflective and light trapping properties of silicon solar cells. Combining standard pyramidal front side textures with scattering or diffractive rear side textures has the potential to further increase the light path length inside the silicon and thereby increase the sol…
An investigation into a novel in-vivo PMMA (polymethyl methacrylate) fiber-optic dosimeter to monitor the dose of ionizing radiation, both for instantaneous and integrating measurements, for radiotherapy applications is proposed. This fiber sensor is designed as an intracorporal X-ray ionizing sensor to enhance the cu…
Для наночастинок з алмазоподiбною структурою отримано зворотний закон Холла–Петча з перших принципiв (метод апрiорного псевдопотенцiалу). Показано, що коефiцiєнт Холла–Петча залежить вiд параметрiв кристалiчної решiтки наночастинок.
Colloidal fluids play an essential role in understanding the fundamental properties of soft materials and in designing some of their applications. This chapter introduces some concepts and techniques currently used in the study of colloidal fluids, particularly those concerning the static structural properties and dyn…
The purpose of this study was to determine the effect of the current violence SMAW welds on weld metal, HAZ and base metal regions ST 60 steel using E6013 electrodes. This study uses eksprimental, hardness testing was conducted using the Rockwell B (HRB). Hardness testing penetrator ball O 1/16 with a 981 N load suppr…
This chapter explains a flavor of the complexity of sheared colloidal dispersions. It first describes the equilibrium phase behavior and shows how this phase behavior is affected by shear flow. The chapter then discusses how the nonequilibrium phase behavior perturbs the flow behavior of the system including flow inst…
Remote optoelectronic probing is one of the most actual aspects of overhead electric line maintenances. By installing such systems on a helicopter (for example) it becomes possible to monitor overhead transmission line status and to search damaged parts of the lines. Thermal and UV-cameras are used for more effective…
Colloidal Quantum Dots (CQD), due to their extremely large optical absorption coefficient and tunability of the absorption bands, are very promising for the realization of photodetectors. PbS quantum dots, in particular, can be effectively employed as a material for near infrared photodetectors with sensitivity peaks…
Au nanocrystals are grown on the tips of CdSxSe1−x (x = 0–1) anisotropic semiconductor nanocrystals. The growth mechanism is investigated. The influence of the S:Se ratio in tuning the excited-state properties of Au/CdSxSe1−x anisotropic nanocrystals and its influence on the photocurrent response and hydrogen producti…
Abstract Polymere Nanokomposite erfahren heutzutage zunehmende Bedeutung für die Erzeugung funktioneller Beschichtungen. Zu diesem Zweck werden maßgeschneiderte modifizierte Nanopartikel in eine Harzmatrix eingebracht und die Eigenschaften einer so erzeugten Beschichtung wesentlich verbessert. In dieser Arbeit wird de…
Розв’язується квантово-механічна задача про рух електрона в зовнішніх однорідних схрещених електричному та магнітному полях. Шляхом розв’язання рівняння Шредінгера знайдено вираз для хвильової функції електрона, що рухається в такій суперпозиції електромагнітних полів. Частина хвильової функції електрона, що описує йо…
Organ dose calculations performed using human phantoms can provide estimates of astronauts' health risks due to cosmic radiation. However, the characteristics of such phantoms strongly affect the estimation precision. To investigate organ dose variations with body size and posture in human phantoms, a non-uniform rati…
This article investigates the effect of low-level ionizing radiation, namely X-rays, on the micro structural characteristics, resistance, and corrosion resistance of TIG-welded joints of AISI 304 austenitic stainless steel made using AISI 316L filler rods. The welds were made in two different environments: natural atm…
The possibilities and practical aspects of application of orbital welding for pipelines in aviation gas turbine engines are investigated.