scholarly journals Numerical and Experimental Investigation of the Opposite Influence of Dielectric Anisotropy and Substrate Bending on Planar Radiators and Sensors

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 16
Author(s):  
Plamen I. Dankov ◽  
Praveen K. Sharma ◽  
Navneet Gupta
Keyword(s):  
Dielectric Anisotropy ◽  
Future Research ◽  
Fractal Structures ◽  
Pure Bending ◽  
Textile Fabrics ◽  
Bending Effect ◽  
Different Types ◽  
First Time ◽  
Woven Textile ◽  
Selection Of

The simultaneous influences of the substrate anisotropy and substrate bending are numerically and experimentally investigated in this paper for planar resonators on flexible textile and polymer substrates. The pure bending effect has been examined by the help of well-selected flexible isotropic substrates. The origin of the anisotropy (direction-depended dielectric constant) of the woven textile fabrics has been numerically and then experimentally verified by two authorship methods described in the paper. The effect of the anisotropy has been numerically divided from the effect of bending and for the first time it was shown that both effects have almost comparable but opposite influences on the resonance characteristics of planar resonators. After the selection of several anisotropic textile fabrics, polymers, and flexible reinforced substrates with measured anisotropy, the opposite influence of both effects, anisotropy and bending, has been experimentally demonstrated for rectangular resonators. The separated impacts of the considered effects are numerically investigated for more sophisticated resonance structures—with different types of slots, with defected grounds and in fractal resonators for the first three fractal iterations. The bending effect is stronger for the slotted structures, while the effect of anisotropy predominates in the fractal structures. Finally, useful conclusions are formulated and the needs for future research are discussed considering effects in metamaterial wearable patches and antennas.

Migrants in Medieval England, c. 500-c. 1500

2020 ◽  
Keyword(s):  
Art History ◽  
Historical Linguistics ◽  
Source Material ◽  
Modern World ◽  
Future Research ◽  
Medieval England ◽  
Medieval Studies ◽  
Wide Range ◽  
Different Types ◽  
First Time

This book is a ground-breaking study of the phenomenon of migration in and to England over the medieval millennium, between c. AD 500 and c. AD 1500. It reaches across traditional scholarly divides, both disciplinary and chronological, to investigate, for the first time, the different types of data and scholarly methods that reveal evidence of migration and mobility within the medieval kingdom of England. England offers the opportunity for studying migration and migrants over the longue durée, because it has been a recognisable political unit for over a millennium and because a wealth of source material has survived from these centuries. The data vary unevenly in quality and quantity across this period, but become considerably more powerful through multi-disciplinary approaches to data collection and interpretation. Fifteen subject specialists synthesise and extend recent research in a wide range of disciplines, including archaeology, art history, genetics, historical linguistics, history, literature and onomastics. They evaluate the capacity of different genres of evidence for addressing questions around migration and its effects on the identities of groups and individuals within medieval England, as well as methodological parameters and future research potential. The book therefore marks an important contribution to medieval studies, and to modern debates on migration and the free movement of people, arguing that migration in the modern world, and its reverberations, cannot be completely understood without taking a broad historical perspective on the topic.

scholarly journals Unpacking Associations between Mood Symptoms and Screen Time in Preadolescents: A Network Analysis

2020 ◽  
Author(s):  
Sin-Ying Lin ◽  
Nicholas R Eaton ◽  
Jessica L. Schleider
Keyword(s):  
Graphical Models ◽  
Behavioral Inhibition ◽  
Screen Time ◽  
Parental Monitoring ◽  
Future Research ◽  
Mood Symptoms ◽  
Symptom Profiles ◽  
Different Types ◽  
Symptom Level ◽  
First Time

Mounting evidence highlights the link between screen time and adolescent mood problems. However, there are several shortcomings to the extant literature: (1) this link is relatively underexplored in preadolescents, (2) most existing studies look at mood problems using categorical diagnoses rather than from a symptom-level perspective, despite the heterogeneity within mood disorders, (3) few studies have simultaneously examined the links of mood symptoms with different types of screen time, and (4) family/child-level factors that have shown links to youth psychopathology are not typically considered. This study, for the first time, examined the relationships of mood symptoms with different types of screen time, while accounting for theoretically important factors—parental monitoring and the behavioral inhibition/activation systems (BIS/BAS)—in preadolescents aged 9 to 10 from 9,986 families participating in the Adolescent Brain and Cognitive Development Study. Using mixed graphical models, we found that screen time involving age-inappropriate content was stably and significantly associated with various elevated mood symptoms, independent from other types of screen time, BIS/BAS, and parental monitoring. Additionally, age-inappropriate screen time was associated with increased overall symptom connectivity. Further, preadolescents engaged in high levels of age-inappropriate screen time reported different symptom profiles (i.e., differences in symptom centralities) from common pediatric mood problems. Our findings underline the multifaceted role (i.e., direct associations with symptoms, a moderator for symptom relationships, associations with distinct symptom profiles) of age-inappropriate screen time in preadolescent mood problems. These findings serve as foundations for future research that may facilitate early detection of preadolescents at risk of mood problems.

scholarly journals TECHNIQUE OF FUNCTIONAL UNIFICATION OF ADAPTIVE HYDRAULIC DRIVE MODULE CAPABLE OF LOAD STABILIZATION ON THE WORKING BODY OF MOBILE MACHINES

2018 ◽  
Vol 18 (3) ◽  
pp. 318-325
Author(s):  
V. A. Pershin ◽  
T. A. Khinikadze
Keyword(s):  
Hydraulic System ◽  
Hydraulic Drive ◽  
Load Control ◽  
Technical Equipment ◽  
Adaptive Communications ◽  
Hydraulic Motors ◽  
Different Types ◽  
First Time ◽  
Similarity Method ◽  
Selection Of

Introduction. Issues on the functional unification of the adaptive hydraulic  drive  module  are  studied.  For  the  first  time,  self-adapting   mechanisms   are   considered   taking   into   account adaptive intercommunication of the load control and agreement of motions on the working body of the mobile machines. The work objective is to create and analyze the technique of the functional unification of the adaptive hydraulic drive module. In the furtherance of this goal, a number of tasks are solved. The selection of technical equipment – unified adaptive hydraulic drive  modules  of  the  mobile  machines  –  is  validated.  The methodology   and    indicators   of    the    module    functional unification are described. Intercommunications are considered: direct  positive  and  back  negative  ones.  Their  effect  on  the functional unification property of the adaptive module is shown.Materials and Methods. For the synthesis and analysis of the functional  unification  indicators  of  the  adaptive  module,  a similarity method of the technical systems operation is adopted.Research     Results.     Techniques     for     structural-functional unification   of   the   self-adapting   modules   are   developed. Optional  versions  of  the  unified  modules  modification  and proper combinations of hydraulic motors, regulating equipment, and  mathematical  models  of  adaptive  communications  are presented. Criteria  and  indicators  of similarity are  proposed. The functional unification of the adaptive intercommunications of the module and different types of the hydraulic motors and fluid throttling elements in the hydraulic system are analyzed. Recommendations for implementing the functional unification under typing and operation (adjustment) of the adaptive module are formulated.Discussion and Conclusions. The methodology is recommended for the functional unification of the hydraulic self-adapting module. It can be used for the development of unit sizes and under its operation as an independent drive or a hydraulic drive subsystem of a multifunctional or combined machine.

scholarly journals Wearable Devices for Ergonomics: A Systematic Literature Review

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 777
Author(s):  
Elena Stefana ◽  
Filippo Marciano ◽  
Diana Rossi ◽  
Paola Cocca ◽  
Giuseppe Tomasoni
Keyword(s):  
Scientific Literature ◽  
Well Being ◽  
Wearable Devices ◽  
Future Research ◽  
Body Parts ◽  
Vibrotactile Feedback ◽  
Research Directions ◽  
Different Types ◽  
Future Research Directions ◽  
Selection Of

Wearable devices are pervasive solutions for increasing work efficiency, improving workers’ well-being, and creating interactions between users and the environment anytime and anywhere. Although several studies on their use in various fields have been performed, there are no systematic reviews on their utilisation in ergonomics. Therefore, we conducted a systematic review to identify wearable devices proposed in the scientific literature for ergonomic purposes and analyse how they can support the improvement of ergonomic conditions. Twenty-eight papers were retrieved and analysed thanks to eleven comparison dimensions related to ergonomic factors, purposes, and criteria, populations, application and validation. The majority of the available devices are sensor systems composed of different types and numbers of sensors located in diverse body parts. These solutions also represent the technology most frequently employed for monitoring and reducing the risk of awkward postures. In addition, smartwatches, body-mounted smartphones, insole pressure systems, and vibrotactile feedback interfaces have been developed for evaluating and/or controlling physical loads or postures. The main results and the defined framework of analysis provide an overview of the state of the art of smart wearables in ergonomics, support the selection of the most suitable ones in industrial and non-industrial settings, and suggest future research directions.

scholarly journals Inovasi Teknologi Tanaman Krisan yang Dibutuhkan Pelaku Usaha (Technology Innovation of Chrysanthemum Needed by Stakeholders)

2019 ◽  
Vol 28 (1) ◽  
pp. 147 ◽  
Author(s):  
Nur Qomariyah Hayati ◽  
NFN Nurmalinda ◽  
Budi Marwoto
Keyword(s):  
Technological Innovation ◽  
Technology Innovation ◽  
Future Research ◽  
Priority Level ◽  
Research Programs ◽  
Central Java ◽  
Different Types ◽  
Farmer Groups ◽  
Level Of Importance ◽  
Selection Of

<p>Inovasi merupakan komponen utama dalam peningkatan daya saing. Informasi inovasi teknologi yang sesuai kebutuhan pengguna sangat diperlukan dalam penentuan prioritas program penelitian. Tujuan penelitian adalah memperoleh informasi jenis inovasi teknologi yang dibutuhkan pelaku usaha untuk mengembangkan budidaya tanaman krisan. Penelitian dilakukan di wilayah Jawa Barat, Jawa Tengah, dan Bali pada bulan Januari-Desember 2014. Pemilihan lokasi dan responden dilakukan secara purposive, yaitu dengan menentukan sebanyak 45 petani yang berasal dari 10 kelompok tani yang menanam krisan di masing-masing wilayah. Untuk mengetahui tingkat kepentingan kebutuhan inovasi teknologi dalam pengembangan agribisnis krisan berkelanjutan digunakan skala Likert lima tingkat, yaitu sangat penting, penting, cukup penting, tidak penting, dan sangat tidak penting. Penilaian kepentingan dilakukan berdasarkan perkiraan besarnya tingkat kepentingan suatu inovasi teknologi dalam pengembangan sistem agribisnis krisan. Penilaian pelaku usaha terhadap nilai kepentingan relatif jenis inovasi dari masing-masing subsistem agribisnis merupakan dasar pertimbangan untuk menentukan tingkat prioritas dalam program penelitian ke depan dengan kategori utama, prioritas, maupun potensial.</p><p><strong>Keywords</strong></p><p>Identifikasi; Inovasi teknologi; Krisan; Pelaku usaha</p><p><strong>Abstract</strong></p><p>Innovation is a key component in increasing competitiveness. Informations of technology innovation is necessary in determining the priority of research programs that meet the needs of users. The purpose of this study was to obtain information on the type of technological innovation required by business actors to develop chrysanthemum cultivation. The study was conducted in West Java, Central Java, and Bali in January-December 2014. The selection of location and respondents was done purposively by determining as many as 45 farmers from 10 farmer groups planting chrysanthemums in each region. To know the importance level of technological innovation in the development of sustainable chrysanthemum agribusiness was used five-level Likert scale, that is very important, important, important enough, unimportant, and very unimportant. Assessment of interest is based on the approximate level of importance of a technological innovation in the development of chrysanthemum agribusiness system. The appraisal of business actors on the relative importance of different types of innovation from each agribusiness subsystem is the basis of consideration to determine the priority level in future research programs with major category, priority category, and potential category categories.</p>

The Effect of World Ranking on the Selection of Athlete Endorsers: The Case of the PGA

2015 ◽  
Vol 8 (4) ◽  
pp. 411-430
Author(s):  
Wonseok (Eric) Jang ◽  
Yong Jae Ko ◽  
Hee Youn Kim ◽  
Seung Hoon Jeong
Keyword(s):  
Exploratory Study ◽  
Future Research ◽  
Research Directions ◽  
Current Trends ◽  
Different Types ◽  
Future Research Directions ◽  
Golf Industry ◽  
Professional Golfers ◽  
World Ranking ◽  
Selection Of

The purpose of the current exploratory study was twofold: First, to outline current trends in athlete endorsement in the golf industry, and second, to discuss specific patterns of athlete endorsement in practice by considering an athlete’s world ranking and product type (low vs. high involvement and informational vs. transformational products). The results indicate that firms in 23 different types of industries are currently using professional golfers as athlete endorsers to position their products in their target markets. Specifically, the results of correspondence analysis indicate that highly ranked golfers tend to endorse high-involved, expensive, and informational products, while both highly ranked and lowly ranked golfers are similarly used as endorsers for low-involved, inexpensive, and transformational products. Implication, limitations, and future research directions are discussed.

scholarly journals Sustainability and Retail: Analysis of Global Research

2018 ◽  
Vol 11 (1) ◽  
pp. 14 ◽  
Author(s):  
José Ruiz-Real ◽  
Juan Uribe-Toril ◽  
Juan Gázquez-Abad ◽  
Jaime de Pablo Valenciano
Keyword(s):  
Sustainable Management ◽  
Web Of Science ◽  
State Of The Art ◽  
Cultural Analysis ◽  
Future Research ◽  
Sustainable Products ◽  
Different Types ◽  
Sustainability Initiatives ◽  
Research Initiatives ◽  
Selection Of

In recent years, the topic of sustainability has gained prominence in many retail sectors. Sustainability is a key element for retailers, who have seen that sustainable development could become an important source of competitive advantage. The purpose of this work is to highlight state of the art sustainability in retailing, for which a bibliometric analysis has been carried out using Web of Science online and Scopus database. Our findings show the most influential countries, journals, authors, and areas of knowledge interested in the topic. By using a fractional counting method to analyze co-occurrence of the author’s keywords, this paper identifies the most frequent terms and seven clusters. This article represents a contribution by identifying the main trends in sustainability and retail research and proposes future research initiatives, such as: analyze under which conditions the sustainability initiatives give better results to retailers; selection of suppliers and supply chain management; evaluate different types of sustainable products; store sustainable management; sustainability actions and retailers image; how to communicate the sustainability actions of retailers; how sustainability actions influence different types of brands; and international and cross-cultural analysis.

scholarly journals Global research on ultramafic (serpentine) ecosystems (8th International Conference on Serpentine Ecology in Sabah, Malaysia): a summary and synthesis

2015 ◽  
Vol 63 (2) ◽  
pp. 1 ◽  
Author(s):  
Antony van der Ent ◽  
Nishanta Rajakaruna ◽  
Robert Boyd ◽  
Guillaume Echevarria ◽  
Rimi Repin ◽  
...  
Keyword(s):  
Research Society ◽  
Current Status ◽  
Future Research ◽  
Special Issue ◽  
Multidisciplinary Research ◽  
International Forum ◽  
The World ◽  
Poster Presentations ◽  
First Time ◽  
Selection Of

Since 1991, researchers from approximately 45 nations have participated in eight International Conferences on Serpentine Ecology (ICSE). The Conferences are coordinated by the International Serpentine Ecology Society (ISES), a formal research society whose members study geological, pedological, biological and applied aspects of ultramafic (serpentine) ecosystems worldwide. These conferences have provided an international forum to discuss and synthesise multidisciplinary research, and have provided opportunities for scientists in distinct fields and from different regions of the world to conduct collaborative and interdisciplinary research. The 8th ICSE was hosted by Sabah Parks in Malaysia, on the island of Borneo, and attracted the largest delegation to date, 174 participants from 31 countries. This was the first time an ICSE was held in Asia, a region that hosts some of the world’s most biodiverse ultramafic ecosystems. The presentations provided a cross-section of the current status of research in all aspects of ultramafic-biota relations. In this Special Issue of Australian Journal of Botany (Issues 1–2 combined and 3–4 combined), we have compiled a selection of papers from among the oral and poster presentations to provide insights into recent advances in geoecological and applied studies of ultramafic habitats worldwide. Here we provide a preview of select papers found in this Special Issue and summarise some of the contributions made during the 8th ICSE and describe some of the exciting challenges awaiting future research.

Competition of Verb Aspects and Its Resolution as a Creative Act (Based on the Material of Aspects Variants in the Texts by F. M. Dostoevsky)

2020 ◽  
Vol 81 (2) ◽  
pp. 56-63
Author(s):  
S. A. Karpukhin
Keyword(s):  
Traditional Method ◽  
Contextual Analysis ◽  
Verb Aspect ◽  
Component Theory ◽  
Two Component ◽  
Artistic Interpretation ◽  
New Perspective ◽  
First Time ◽  
Selection Of ◽  
Aspectual Meaning

The article considers the competition of verbal aspects from a new perspective. Instead of employing the traditional method of demonstrating this phenomenon — an empirical replacement of the aspect of a verb in a phrase with the opposite — the author examines Dostoevsky’s choice between the variants found in different manuscripts of the same text. For the first time, based on a two-component theory of the semantic invariant of a verb type, the aspectual meaning of the selection of a verb aspect is revealed and, as a result of contextual analysis, an artistic interpretation of the selected type is proposed.

Peculiarities of the juvenile period of the native Chechen genotypes of willow leaf pear (Pyrus salicifolia Pall.)

2020 ◽  
Vol 62 ◽  
pp. 32-38
Author(s):  
E. A. Dolmatov ◽  
R. B. Borzayev ◽  
A. N. Shaipov
Keyword(s):  
Chestnut Soil ◽  
Crop Breeding ◽  
Juvenile Period ◽  
Period 2 ◽  
Russian Research Institute ◽  
The Common ◽  
One Year ◽  
First Time ◽  
Selection Of ◽  
Creative Cooperation

The results of the study of the duration of the juvenile period of indigenous Chechen willow leaf pear genotypes (Pyrus salicifolia Pall.) are given in connection with the acceleration of the breeding process and the use of selected forms in pear breeding for high precocity. The studies were carried out in 2016-2019 at OOO “Orchards of Chechnya” in accordance with the Agreement on creative cooperation with the Russian Research Institute of Fruit Crop Breeding. The work was carried out in accordance with generally accepted programs and methods. The objects of the study were one-year and two-year-old pear seedlings obtained from sowing seeds of selected dwarf and low-growing local Chechen forms of willow pear (P. salicifolia Pall.), laying fruit buds on annual growths and seedlings of Caucasian pear (P. caucasica Fed.), 20 500 pcs. of each specie. The aim of the research was to study the potential of precocity of willow pear seedlings and to reveal of selected forms with the greatest degree of this trait. Stratified seeds were sown in the sowing department of the OOO “Orchards of Chechnya” production nursery in April, 2017. The seedlings were grown according to the common technology in dryland conditions on the plot with chestnut soil. The first fl owering of plants was noted in the spring, 2019. As a result of the research, for the first time on a large number of the experimental material it was found that in the off spring of the indigenous Chechen willow leaf pear genotypes, the selection of a little more than 2% of seedlings with a very short juvenile period (2 years) was possible. They are of great interest in accelerating the breeding process and in the selection of new pear varieties with high precocity. 20 willow leaf pear genotypes were selected for the further use in breeding for high precocity and as sources of the trait of short juvenile period.

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