Hybrid Copolymerization of Acrylate and Thiirane monomers mediated by Trithiocarbonate

2021 ◽  
Author(s):  
Jiawei Li ◽  
Miao Chen ◽  
Ze Zhang ◽  
Cai-Yuan Pan ◽  
Wen-Jian Zhang ◽  
...  
Keyword(s):  
Great Influence ◽  
Straightforward Method ◽  
Composition And Structure

The composition and structure of polymers have great influence on their performances. Copolymerization of different monomers is a straightforward method for the fabrication of polymers with different compositions. Generally, such...

scholarly journals Urea Formaldehyde Composites Reinforced with Sago Fibres Analysis by FTIR, TGA, and DSC

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Tay Chen Chiang ◽  
Sinin Hamdan ◽  
Mohd Shahril Osman
Keyword(s):  
Functional Group ◽  
Urea Formaldehyde ◽  
Great Influence ◽  
Polymeric Materials ◽  
Particle Loading ◽  
Composition And Structure ◽  
End Use ◽  
Tga And Dsc ◽  
Stability Results ◽  
Agricultural Material

Agricultural material or biomaterial plays an important role in the field of fibre-reinforced polymeric materials with their new range of applications and achieves the ecological objective. Composition and structure of the nature fibre and matrix must be taken into consideration for the end use. In this project, Sago fibre particleboard bonds with Urea Formaldehyde to form composite. Fourier Transform Infrared (FTIR) spectra are used to characterize the Sago/Urea Formaldehyde composite in terms of their functional group and bonding. Sago/UF composite with smaller particle and higher loading of fibre with 15 wt% of UF matrix has the higher curing properties. The composite will have a denser structure by adopting bigger particle and higher loading of UF matrix. The Sago/UF composite only endures a single stage of decomposition. Thermal stability results indicate that particle size, particle/matrix interface adhesion, and particle loading have great influence on the thermal properties of the composites.

Crystal Structure Analysis of Cu-Zr Alloys by Convergent Beam Diffraction

1981 ◽  
Vol 39 ◽  
pp. 354-355
Author(s):  
A. F. Marshall ◽  
J. W. Steeds ◽  
D. Bouchet ◽  
S. L. Shinde ◽  
R. G. Walmsley
Keyword(s):  
Crystal Structure ◽  
Point Group ◽  
Intermetallic Phase ◽  
Three Dimensional ◽  
Crystal Structure Analysis ◽  
Ion Milling ◽  
Composition And Structure ◽  
Unit Cells ◽  
Sputter Deposited ◽  
Convergent Beam

Convergent beam electron diffraction is a powerful technique for determining the crystal structure of a material in TEM. In this paper we have applied it to the study of the intermetallic phases in the Cu-rich end of the Cu-Zr system. These phases are highly ordered. Their composition and structure has been previously studied by microprobe and x-ray diffraction with sometimes conflicting results.The crystalline phases were obtained by annealing amorphous sputter-deposited Cu-Zr. Specimens were thinned for TEM by ion milling and observed in a Philips EM 400. Due to the large unit cells involved, a small convergence angle of diffraction was used; however, the three-dimensional lattice and symmetry information of convergent beam microdiffraction patterns is still present. The results are as follows:1) 21 at% Zr in Cu: annealed at 500°C for 5 hours. An intermetallic phase, Cu3.6Zr (21.7% Zr), space group P6/m has been proposed near this composition (2). The major phase of our annealed material was hexagonal with a point group determined as 6/m.

Off-axis electron holography applied to the study of interfaces

1992 ◽  
Vol 50 (1) ◽  
pp. 244-245
Author(s):  
J.K. Weiss ◽  
M. Gajdardziska-Josifovska ◽  
M. R. McCartney ◽  
David J. Smith
Keyword(s):  
Electric Fields ◽  
Resolution Enhancement ◽  
Interfacial Structure ◽  
Atomic Scale ◽  
Bulk Property ◽  
Electron Holography ◽  
Specimen Thickness ◽  
Composition And Structure ◽  
Chemical Segregation ◽  
Diffraction Effects

Interfacial structure is a controlling parameter in the behavior of many materials. Electron microscopy methods are widely used for characterizing such features as interface abruptness and chemical segregation at interfaces. The problem for high resolution microscopy is to establish optimum imaging conditions for extracting this information. We have found that off-axis electron holography can provide useful information for the study of interfaces that is not easily obtained by other techniques.Electron holography permits the recovery of both the amplitude and the phase of the image wave. Recent studies have applied the information obtained from electron holograms to characterizing magnetic and electric fields in materials and also to atomic-scale resolution enhancement. The phase of an electron wave passing through a specimen is shifted by an amount which is proportional to the product of the specimen thickness and the projected electrostatic potential (ignoring magnetic fields and diffraction effects). If atomic-scale variations are ignored, the potential in the specimen is described by the mean inner potential, a bulk property sensitive to both composition and structure. For the study of interfaces, the specimen thickness is assumed to be approximately constant across the interface, so that the phase of the image wave will give a picture of mean inner potential across the interface.

Phase separation in sol gel-derived ceramic films of silica-zirconia, alumina-zirconia, and titania-zirconia system

1994 ◽  
Vol 52 ◽  
pp. 646-647
Author(s):  
J. Tong ◽  
L. Eyring
Keyword(s):  
Fracture Toughness ◽  
Phase Separation ◽  
Sol Gel ◽  
Great Influence ◽  
High Strength ◽  
Chemical Durability ◽  
Separation Method ◽  
Toughening Mechanism ◽  
Ceramic Films ◽  
Zirconia Toughened Alumina

There is increasing interest in composites containing zirconia because of their high strength, fracture toughness, and its great influence on the chemical durability in glass. For the zirconia-silica system, monolithic glasses, fibers and coatings have been obtained. There is currently a great interest in designing zirconia-toughened alumina including exploration of the processing methods and the toughening mechanism.The possibility of forming nanocrystal composites by a phase separation method has been investigated in three systems: zirconia-alumina, zirconia-silica and zirconia-titania using HREM. The morphological observations initially suggest that the formation of nanocrystal composites by a phase separation method is possible in the zirconia-alumina and zirconia-silica systems, but impossible in the zirconia-titania system. The separation-produced grain size in silica-zirconia system is around 5 nm and is more uniform than that in the alumina-zirconia system in which the sizes of the small polyhedron grains are around 10 nm. In the titania-zirconia system, there is no obvious separation as was observed in die alumina-zirconia and silica-zirconia system.

Optical imaging probes and their potential contribution to radiotracer development

2016 ◽  
Vol 55 (02) ◽  
pp. 51-62 ◽  
Author(s):  
S. Hermann ◽  
M. Schäfers ◽  
C. Höltke ◽  
A. Faust
Keyword(s):  
Optical Imaging ◽  
Fluorescent Dyes ◽  
Great Influence ◽  
Potential Contribution ◽  
Preclinical Evaluation ◽  
Guided Surgery ◽  
Fluorescence Guided Surgery ◽  
Imaging Probes ◽  
Unspecific Binding

SummaryOptical imaging has long been considered a method for histological or microscopic investigations. Over the last 15 years, however, this method was applied for preclinical molecular imaging and, just recently, was also able to show its principal potential for clinical applications (e.g. fluorescence-guided surgery). Reviewing the development and preclinical evaluation of new fluorescent dyes and target-specific dye conjugates, these often show characteristic patterns of their routes of excretion and biodistribution, which could also be interesting for the development and optimization of radiopharmaceuticals. Especially ionic charges show a great influence on biodistribution and netcharge and charge-distribution on a conjugate often determines unspecific binding or background signals in liver, kidney or intestine, and other organs.Learning from fluorescent probe behaviour in vivo and translating this knowledge to radio-pharmaceuticals might be useful to further optimize emerging and existing radiopharmaceuticals with respect to their biodistribution and thereby availability for binding to their targets.

DYNAMIC AND COMPETENCE ASPECTS OF THE MEDIA EDUCATIONAL CONCEPT OF DEVELOPING A PERSON’S READINESS FOR LIFELONG SELF-EDUCATION

2019 ◽  
pp. 23-33
Author(s):  
S. V. Akmanova ◽  
L. V. Kurzaeva ◽  
N. A. Kopylova
Keyword(s):  
Informal Education ◽  
Great Influence ◽  
Formal Training ◽  
Life Stages ◽  
Media Technologies ◽  
Educational Concept ◽  
The Media ◽  
The Individual ◽  
Competence Models ◽  
Scientific Achievements

The harmonious existence of the individual in the modern informational era, which is overly saturated with rapidly developing media technologies, is almost impossible without the developed readiness of the individual for lifelong continuous self-education. The formation and development of this readiness can begin during the formal training at the stage of higher education of the person and continue during informal education throughout his future life. Stages of socialization and professionalization of the person have a great influence on the level nature of this readiness. Based on scientific achievements in the field of self-education of university students, national and world media education, we developed dynamic and competence models of media educational concept of developing a person’s readiness for lifelong self-education. The concept demonstrates interconnection of these two models, as well as consistency with the previously developed normative model of developing this readiness.

IDENTIFIKASI KEPUASAN KERJA PERAWAT YANG BEKERJA DI BANGSAL MEDIKAL BEDAH

2019 ◽  
Vol 11 (1) ◽  
pp. 1-8
Author(s):  
Desi Desi ◽  
Dary Dary ◽  
Fetty Yublika Pasole
Keyword(s):  
Job Satisfaction ◽  
Univariate Analysis ◽  
Great Influence ◽  
Sampling Technique ◽  
Well Being ◽  
Medical Surgery ◽  
Hospital Nurses ◽  
Analysis Techniques ◽  
Work Related ◽  
Descriptive Research

Kepuasan kerja menjadi masalah yang cukup menarik dan penting, karena terbukti memiliki pengaruh yang besar bagi individu maupun perusahan. Kepuasan kerja merupakan suatu sikap seseorang terhadap pekerjaan yang berhubungan dengan situasi kerja, kerja sama antara karyawan, imbalan yang diterima dalam kerja, dan hal-hal yang menyangkut fisik dan psikologis. Tujuan penelitian ini untuk mengidentifikasi kepuasan kerja perawat di bangsal medikal bedah. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian deskriptif. Adapun teknik analisa data dalam penelitian ini dengan analisa univariat untuk mendeskripsikan karekteristik dari variabel yang ada. Teknik pengambilan sampel menggunakan penyebaran kuesioner kepada perawat yang bekerja di rumah sakit tertentu di Kabupaten Timur Tengah Selatan dan Kota Kupang, sampel yang di ambil berjumlah 89 sampel. Hasil yang didapat dari penelitian ini rata-rata kepuasan kerja perawat berada pada kategori netral yang artinya perawat merasa apa yang sudah diterima sesuai dengan pekerjaan yang sudah mereka lakukan hal ini dilihat dari Sembilan kategori yang di telliti yaitu gaji, supervisi, tunjangan tambahan, penghargaan, kondisi kerja, promosi, sifat kerja dan komunikasi kecuali rekan kerja. Saran untuk peneiliti kedepannya agar dapat menggunakan variabel yang lain seperti well-being terhadap kepuasan kerja perawat yang bekerja di rumah sakit.   Kata kunci : kepuasan kerja, perawat   IDENTIFICATION OF NURSE WORK SATISFACTION THAT WORKED IN THE MEDICAL SURGERY OF SURGERY   ABSTRACT Job satisfaction is a problem that is quite interesting and important, because it has proven to have a great influence for individuals and for companies. Job satisfaction is a person's attitude towards work related to work situations, cooperation between employees, rewards received in work, and matters relating to physical and psychological. The purpose of this study was to identify job satisfaction of nurses in the surgical medical ward. This study uses a quantitative approach with a type of descriptive research. The data analysis techniques in this study were carried out by univariate analysis to describe the characteristics of the variables. The sampling technique used questionnaires to nurses who worked in certain hospitals in South Middle East District and Kupang City, the samples taken were 89 samples. . The results obtained from this study mean that the average job satisfaction of certain hospital nurses in East Tengah Selatan District and Kupang City is in the neutral category, which means nurses feel that what they have received is in accordance with the work they have done. telliti namely salary, supervision, additional benefits, rewards, working conditions, promotions, nature of work and communication except coworkers. Suggestions for future researchers to be able to use other variables such as well-being towards job satisfaction for nurses working in hospitals.   Keywords:  job satisfaction, nurse  

Specific composition and structure of population phytopathogens of vegetable crops

2019 ◽  
Vol 326 (3) ◽  
pp. 76-78
Author(s):  
V.L. Nalobova ◽  
◽  
N.S. Opimah ◽  
M.V. Nalobova ◽  
I.V. Haponenka ◽  
...  
Keyword(s):  
Vegetable Crops ◽  
Specific Composition ◽  
Composition And Structure ◽  
Structure Of Population

Swami Vivekananda Teaching using Tradition of Valuing the Early years of the Child’s life, and a Rich Heritage of Practices for Stimulating Development and Inculcating “Sanskaras” or basis Values and Social Skills in Children in Icds in India

2018 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Human Life ◽  
Great Influence ◽  
Social Philosophy ◽  
Early Years ◽  
The Political ◽  
Human Beings ◽  
Practical Realization ◽  
Life Activity ◽  
Philosophical Consideration ◽  
Economic Philosophy

Philosophy is a search for a general understanding of values and reality by chiefly speculative rather than observational means. It signifies a natural and necessary urge in human beings to know themselves and the world in which they live and move and have their being. Hindu philosophy is intensely spiritual and has always emphasized the need for practical realization of Truth. Philosophy is a comprehensive system of ideas about human nature and the nature of the reality we live in. It is a guide for living, because the issues it addresses are basic and pervasive, determining the course we take in life and how we treat other people. Hence we can say that all the aspects of human life are influenced and governed by the philosophical consideration. As a field of study philosophy is one of the oldest disciplines. It is considered as a mother of all the sciences. In fact it is at the root of all knowledge. Education has also drawn its material from different philosophical bases. Education, like philosophy is also closely related to human life. Therefore, being an important life activity education is also greatly influenced by philosophy. Various fields of philosophy like the political philosophy, social philosophy and economic philosophy have great influence on the various aspects of education like educational procedures, processes, policies, planning and its implementation, from both the theoretical and practical aspects. In order to understand the concept of Philosophy of education it is necessary to first understand the meaning of the two terms; Philosophy and Education.

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