scholarly journals MAGNETIC NANOMATERIALS AND NANOSTRUCTURES. TRENDS OF DEVELOPMENT

2018 ◽  
Vol 63 (2) ◽  
pp. 135-149
Author(s):  
V. M. Fedosyuk
Keyword(s):  
Multilayer Film ◽  
Materials Science ◽  
Spin Valve ◽  
Magnetic Nanomaterials ◽  
Blocking Temperature ◽  
Electrolytic Deposition ◽  
National Academy Of Sciences ◽  
Materials Research ◽  
High Level ◽  
Granular Alloys

There are analyzed creation and development of magnetic nanomaterials and nanostructures, films with a columnar type of crystal structure, multilayer film structures, nanocomposites, granular alloys and nanowires. The methodics of obtaining, structure, magnetic and magnetoresistive properties of three types of nanowires – multilayered and granular ones and the ones of spin-valve type are discussed. It is shown that multilayer film coatings with very thin (< 1 nm) alternating magnetic and nonmagnetic layers behave like films of granular alloys. It is emphasized that the films of granular Cu–Co alloys were first obtained at the Scientific and Practical Materials Research Center of the National Academy of Sciences of Belarus by the method of electrolytic deposition without subsequent annealing, as is the case with other methods for their preparation. As prepared Cu–Co films are superparamagneties. That is, they demonstrate ferromagnetic below blocking temperature, which is dependent on the size of cobalt clusters in diamagnetic matrix of copper. The granulated nanowires, firstly obtained by us, exhibit similar behavior. Special attention is paid to the analysis of obtaining and properties of multilayered films of the spin-valve type. The trends in the development of materials science are predicted, which will allow creating new materials with a high level of quality and specified properties, what will allow expanding the area of export of such materials and products from them in the future. 

(A review) Vegetation and biotopes of the National Park “Narochansky” with the Map of terrestrial vegetation (S. 1 : 60 000) and the Map of biotopes (S. 1 : 60 000)

2019 ◽  
pp. 68-72
Author(s):  
E. A. Volkova
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Practical Importance ◽  
Vegetation Mapping ◽  
Small Scale ◽  
Terrestrial Vegetation ◽  
Economic Activities ◽  
National Academy Of Sciences ◽  
Experimental Botany ◽  
High Level

A monograph “Vegetation and biotopes of the “Narochansky” National Park was published in Minsk, Belarus in 2017, edited by A. V. Pugachevsky (Grummo et al., 2017). It includes the Map of terrestrial vegetation (S. 1 : 60 000) and the Map of biotopes (S. 1 : 60 000). Some small-scale maps such as the Map of changes in forest cover of the “Narochansky” National Park for the period 1985–2016, the Map of forest loss in the “Narochansky” National Park for the period 1985–2016 and a series of inventory and analytical maps on the basin of the Naroch Lake are given. This monograph can be considered as a small regional Atlas with detailed explanatory texts to the maps. It presents the experience on vegetation mapping accumulated in the Laboratory of Geobotany and Vegetation mapping of the Institute of Experimental Botany of the National Academy of Sciences of Belarus. Despite some critical comments, mainly concerning the biotope map, this publication of Belarusian geobotanists deserves an approval. They received the full answers to the questions posed: “What do we protect?” and “What is a current state of the vegetation of the National Park and the main trends of its dynamics? Cartographic design is made at a high level; the maps have both scientific and practical importance in the planning of environmental and economic activities.

scholarly journals The search for new materials and the role of novel processing routes

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Peter J. Wellmann
Keyword(s):  
Materials Science ◽  
Research Society ◽  
Subsequent Treatment ◽  
European Council ◽  
Trial And Error ◽  
Human History ◽  
New Materials ◽  
Materials Research ◽  
Novel Processing

AbstractThroughout human history, most further developments or new achievements were accompanied by new materials or new processes that enabled the technologic progress. With concrete devices and applications in mind, synthesis and subsequent treatment of materials naturally went along with the progress. The aim of the underlying article is to spot the role of optimization, of discovery, of trial-and-error approaches, of fundamentals and curiosity driven design and development. In a consecutive examination, five missions addressing the challenges facing our world (identified by the European Council) will be cross linked with seven topical areas from materials science defined by the European Materials Research Society. The scope of this examination is to identify approaches and methods to further develop and innovate materials which form the basis of the anticipated solutions.

scholarly journals Preview: 1989 MRS Spring Meeting

MRS Bulletin ◽  
1989 ◽  
Vol 14 (3) ◽  
pp. 51-55
Keyword(s):  
Optical Materials ◽  
Materials Science ◽  
Magnetic Films ◽  
Research Society ◽  
Joint Session ◽  
Linus Pauling ◽  
Spring Meeting ◽  
Materials Research ◽  
The Town

The 1989 Spring Meeting of the Materials Research Society will be held at the Town and County Hotel in San Diego, with events spanning April 22-29. Meeting Chairs Robin Farrow, Dick Siegel and Angelica Stacy have developed a program of 16 technical symposia that reflect the continuing key role of materials science in the development of both mature and emerging technologies.Several new topics will reflect emerging areas, including materials for optical storage of information (Symposium F), ultrathin magnetic films (Symposium G), and materials problems of infrastructure (Symposium P). A special workshop will provide a technology update on diamond films (Symposium P) and will feature a joint session with Symposium H, Optical Materials: Processing and Science.Plenary speaker Linus Pauling, research professor at the Linus Pauling Institute of Science and Medicine, will discuss quasicrystals, materials whose atomic structure displays perfect five-fold symmetry, but whose atomic pattern is never exactly repeated as it would be in conventional crystals. During the Plenary Session MRS will also recognize graduate students who have made outstanding contributions as authors or co-authors of papers presented at the 1989 Spring Meeting.

scholarly journals PROBLEMS OF DEVELOPMENT OF THE METHOD OF X-RAY PHOTOELECTRON SPECTROSCOPY IN UKRAINE

2021 ◽  
Vol 87 (1) ◽  
pp. 41-50
Author(s):  
Oleksandr Korduban ◽  
Volodymyr Ogenko ◽  
Taras Kryshchuk
Keyword(s):  
Photoelectron Spectroscopy ◽  
Materials Science ◽  
Surface Condition ◽  
Organometallic Compounds ◽  
Modern Method ◽  
High Tech ◽  
National Academy Of Sciences ◽  
Technical Problems ◽  
X Ray ◽  
Academy Of Sciences

The article is devoted to the development problems of the X-ray Photoelectron Spectroscopy (XPS) method in Ukraine. XPS is a modern method for studying the electronic structure of atoms. The XPS method is used at all stages of the synthesis and study of materials, the functional properties of which are determined by the state of the surface or interphase boundaries, charge states of atoms and the type of functional groups, and material degradation processes. The objects of study are catalysts, coatings, chemical sensors, sorbents, coordination and organometallic compounds (chemistry, materials science, phar­maceuticals), surface condition and composition (microelectronics), thin films (optics), alloys (aviation and space industry), nanopowders, nanofilms (nanotechnology). The method is relevant for the implementation of targeted synthesis of materials. In the world, the XPS method is widespread and integrated into innovative branches of science and technology, and XPS - instrumentation - is a high-tech business. In Ukraine, the method is practically not presented, there is no competition in this field of instrumentation. The article proposes the creation on the basis of the National Academy of Sciences of Ukraine a park of unitary, high-quality and affordable domestic XPS-spectrometers and the opening of a service center. The XPS method is necessary for most of the institutes of the National Academy of Sciences of Ukraine from the departments of chemistry, physics and astronomy, physical and technical problems of materials science, earth sciences and all specialized faculties of state universities. In general, for Ukraine, this is at least 50 spectrometers. The mechanism for the implementation of the project can be the formation of a state order for the development and manufacture of a batch of XPS spectrometers on the basis of imported and domestic components (50:50) and attracting business to the project. Creation of a network of Domestic XPS-spectrometers allows to obtain a sharp increase in the efficiency of scientific research in chemistry, physics, materials science and is one of the conditions for Ukraine’s transition to an innovative economy.

Mentoring Undergraduate Students in Computational Materials Research

2015 ◽  
Vol 1762 ◽  
Author(s):  
Jie Zou
Keyword(s):  
Undergraduate Students ◽  
Experimental Research ◽  
Materials Science ◽  
Computational Materials Science ◽  
Undergraduate Institutions ◽  
Materials Research ◽  
Computational Research ◽  
Computational Materials ◽  
Eastern Illinois University ◽  
Physics Department

ABSTRACTComputation has become an increasingly important tool in materials science. Compared to experimental research, which requires facilities that are often beyond the financial capability of primarily-undergraduate institutions, computation provides a more affordable approach. In the Physics Department at Eastern Illinois University (EIU), students have opportunities to participate in computational materials research. In this paper, I will discuss our approach to involving undergraduate students in this area. Specifically, I will discuss (i) how to prepare undergraduate students for computational research, (ii) how to motivate and recruit students to participate in computational research, and (iii) how to select and design undergraduate projects in computational materials science. Suggestions on how similar approaches can be implemented at other institutions are also given.

Development of Ips Learning Module Based on Islamic Integration and Science In Grade VII Students SMP Muhammadiyah Enrekang

2021 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Tri Wijaya Darwis ◽  
Muhammad Ibrahim ◽  
Suparman Suparman ◽  
Putriyani Samsul
Keyword(s):  
Learning Outcomes ◽  
Materials Science ◽  
Field Tests ◽  
Design Development ◽  
Development Models ◽  
Post Test ◽  
Development Approach ◽  
High Level ◽  
Module Development ◽  
Expert Validation

The IPS module development based on Islamic integration and science in SMP Muhammadiyah Enrekang based on: First, no SCIENCE teaching materials have the concept of Islamic integration and science. Second, no teaching material guides students to obtain IPS' idea confidence in Allah SWT. Third, the results of studying IPS are some students who have not achieved KKM scores. The purpose of this development are to: (1) design the of Islamic-based IPS modules and human materials science, place and environment in grade VII students of SMP Muhammadiyah Enrekang, (2) explain the effectiveness Islamic-based IPS modules to improve learning outcomes. This research used a Research and Development approach with ADDIE (Analysis, Design, Development, Implementation, and Evaluation) development models. An explanation of the module's level of interest was used in the questionnaire tested in the experiment class. Meanwhile, the influence of modules on improving students' learning outcomes uses pre-test post-test control design groups. The development results showed that: (1) specifications of IPS modules based on Islamic integration and science in the form of print media. This module developed using evidence sourced from the Qur'an. The learning results intended to achieve 2013 curriculum and as a means for students to increase their confidence in Allah SWT through integration with the evidence of the Qur'an; (2) the effectiveness and convenience of IPS module based on Islamic integration and science showed that this module has a high level of feasibility, effectiveness, and interest. 84% level material validation results evidence this, 71% level learning expert validation, 95% level language validation, 90% learning expert validation. The results of field tests on grade VII students of SMP Muhammadiyah Enrekang showed a high level of effectiveness through the works of independent sample t-test obtained t count=6.41and t tabel=2.0322. Because of the t count > table, Ho is rejected, and Ha is accepted

Promoting the LIST Centre of Excellence in Atomic Layer Deposition

Impact ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. 33-35
Author(s):  
Noureddine Adjeroud
Keyword(s):  
Information Technology ◽  
Atomic Layer Deposition ◽  
Natural Resources ◽  
Materials Science ◽  
Atomic Layer ◽  
Civic Life ◽  
Layer Deposition ◽  
Centre Of Excellence ◽  
Materials Research ◽  
Innovative Materials

In our globalised economy, different countries need to find different ways to remain competitive in the marketplace. For larger countries, this often means maximising output in a given industry or industries. This is similar for countries that are blessed with copious natural resources. However, for smaller countries, the picture is more complicated. It is often necessary for them to invest in and corner a particular area of expertise or new field of activity. Luxembourg has been developing several technological avenues to help the country remain competitive both in Europe and across the globe. Specifically, they have developed research institutions with the aim of working closely with the needs of the nation, the continent and industrial partners. One such organisation is the Luxembourg Institute of Science and Technology (LIST). The LIST works primarily in three key areas – the environment, information technology and materials science. These fields are interlinked and are three areas of research that are both constantly developing and important to many different industries. Improvements in these disciplines can directly impact manufacturing chain, civic life and citizens. Dr Noureddine Adjeroud is materials scientist and key member of the Nanomaterial and Nanotechnology team under the scope of the Materials Research and Technology Department. He has been instrumental in creating the Atomic Layer Deposition Centre of Excellence (ALD CoEx) within the Department. The aim of the ALD CoEx is to develop innovative materials for a whole range of applications through the Centre's expertise in atomic layer deposition (ALD).

Giant Magnetoresistive Property of a Superconductor Nb layer and a Spin-Valve NiFe/CoFe/Cu/CoFe/IrMn Multilayer Film

2017 ◽  
Vol 67 (9) ◽  
pp. 1035-1041 ◽  
Author(s):  
Woo-Il YANG ◽  
Jong-Gu CHOI ◽  
Sang-Suk LEE*
Keyword(s):  
Multilayer Film ◽  
Spin Valve

scholarly journals Time-Resolved X-Ray Microscopy for Materials Science

2019 ◽  
Vol 49 (1) ◽  
pp. 389-415 ◽  
Author(s):  
Haidan Wen ◽  
Mathew J. Cherukara ◽  
Martin V. Holt
Keyword(s):  
Large Scale ◽  
Materials Science ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Imaging ◽  
Materials Research ◽  
Microscopic Studies ◽  
Nanoscale Imaging ◽  
Indispensable Tool ◽  
The Time Domain

X-ray microscopy has been an indispensable tool to image nanoscale properties for materials research. One of its recent advances is extending microscopic studies to the time domain to visualize the dynamics of nanoscale phenomena. Large-scale X-ray facilities have been the powerhouse of time-resolved X-ray microscopy. Their upgrades, including a significant reduction of the X-ray emittance at storage rings (SRs) and fully coherent ultrashort X-ray pulses at free-electron lasers (FELs), will lead to new developments in instrumentation and will open new scientific opportunities for X-ray imaging of nanoscale dynamics with the simultaneous attainment of unprecedentedly high spatial and temporal resolutions. This review presents recent progress in and the outlook for time-resolved X-ray microscopy in the context of ultrafast nanoscale imaging and its applications to condensed matter physics and materials science.

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