bluuebunny/crossref_metadata_2025 huggingface dataset:
COMPREHENSIVE NUMERICAL HYDRODYNAMIC CAMPAIGN TO EVALUATE FRIGATE CONCEPT HULLFORM
Authors: Gamboa F
Published: October 2022

A hullform was developed for a new frigate based on the parent hullform of an existing design. The new hullform is able to provide higher payload and stability performance, consequently increase its adaptability capability.
Initial bare hull resistance to the new hullform concept was estimated using CFD (Computational Fluid Dynamics). After the final fairing, a hydrodynamic campaign was defined to measure the hydrodynamic characteristics of the new concept.
BAE Systems used, for the first time, numerical prediction methods to undertake a complete hydrodynamic campaign on a hullform. The campaign included Bare Hull Resistance, Propeller Nominal Wake Survey, Self- Propulsion, Appendage Alignment, Seakeeping and Manoeuvring. The current paper is focused on the Bare Hull Resistance Analysis. A validation was made against the available experimental results for the parent hullform. The validation showed a goodagreement. The validated numerical modelling was used in the new hullform evaluation.
The results showed that despite the larger displacement, the new hullform hydrodynamic performance is similar to the parent hullform.
Assessment of highway pavement concrete suffering from alkali-silica reaction: case study
Authors: Jóźwiak-Niedźwiedzka D. , Antolik A.
Published: October 2022

After 15 years of exploitation, numerous instances of damage to the concrete pavement motorway located in northern Germany were observed. Detailed macro and microscopic analysis and determination of mechanical properties were performed on the collected cores. It was found that cracks in the coarse and fine aggregate resulted from advanced alkali-silica reaction. No impact of de-icing agents on the destruction of the concrete pavement was found, while attention was paid to the potential intensification of concrete degradation resulting from the increase in traffic on motorways. The results obtained are a detailed supplement to the German research, as this region (Rostock) has not been analysed before.
Alignment of Higher Education Study Programs and Job Market Demand using Machine Learning Techniques – A Case Study on Balkan Countries’ Universities
Authors: Ylber Januzaj  , Edmond Beqiri  , Artan Luma
Published: October 2022

Nowadays, a great importance is given to the compatibility between the demands of the labor market and the study programs offered by universities. It is an issue which is constantly addressed by different countries of the world. In our research, we address this issue for universities in the region, including Kosovo, Northern Macedonia, and Albania. Three universities are involved in the research, when the comparison of study programs and labor market demands is made through automated tools. This comparison is made for the technology programs which are offered by these universities, also the labor market demands which are extracted from the websites are from the field of technology. Also, at the end of our research we are be able to see the analysis which has been done between the study programs from the universities of the region and the job demands of the European market.
The Effect of Augmented Reality Technology on the Performance of University Students
Authors: Elmira Orazbayeva , Rauan Begaliyeva , Dinara Baigutova , Prevalla Etemi Blerta
Published: October 2022

In this study, which was created with distance education and augmented reality technology, it was aimed to determine the effect on the performance of university students. When the research is examined, it is seen that the quantitative research method is used. The study was carried out in the fall semester of 2021–2022. A total of 422 volunteer university students who continue their achievements in the study participated in the research. In the research, augmented reality, virtual technology and distance education were taught to university students for 5 weeks via online application training. The data collection tool, which was developed by the researchers and organised by experts in the field, was used in the study, simply called ‘Augmented Reality’. The data collection tool was used to collect data of the people who participated in the research and created the research by solving it with the help of virtual programmes. In the analysis of the collected and compiled data, frequency analysis and t-test were used by using the SPSS programme, which is preferred in many studies, and the results were added to the research in the presence of tables. According to the results obtained from the research, it was concluded that university students’ views on distance education and augmented reality were high and there was a difference.

Keywords— Distance Education, Augmented Reality, University Students
Higher Education Transformation for Artificial Intelligence Revolution: Transformation Framework
Authors: Ghnemat Rawan , Shaout Adnan , Al-Sowi Abrar M.
Published: October 2022

The field of Artificial Intelligence in Education (AIED) will change the shape of education in the future completely, current classroom environment management, collaboration with teachers, and development of AI-based technology platforms. The intelligent adaptive transformation of learning and teaching in higher education required the emergence of all educational process structures. This paper presents a revolutionary educational process called AI-based learning, Which involves technologies within universities, cultures, practices, goals, and communities. This transformation reduces the gap between higher education’s outcome and industry’s needs, by producing lifelong learners. The proposed framework illustrates the full structure, the development steps, and the implementation benefits. The proposed framework also provides connections of scattered scientific research work in different related domains.  Using AI competency-based learning will let students achieve the course outcomes easier and faster and increase student engagement by solving real-life industrial problems in different application domains. The paper also presents implementations phases, benefits and provides a comparison after applying the framework.
Traduction audiovisuelle et multilinguisme
Authors: Loison-Charles Julie
Published: October 2022

Dans les séries anglophones, le français est employé de manière prédominante. Cette situation linguistique est cependant un vrai casse-tête pour les adaptateurs chargés de la VF : comment traduire le français en français ? Au-delà du traitement de la question déjà proposé par la traductologie, cet ouvrage associe une approche théorique du multilinguisme en traduction audiovisuelle et une typologie des solutions adoptées dans le doublage d’une quarantaine de séries. Les scènes étudiées sont issues de séries américaines, britanniques et canadiennes. La plupart sont très récentes, comme Emily in Paris ou The Crown, mais certaines séries des années 1990 ou 2000, à l’instar de Friends ou de Sex and the City, sont également convoquées. Plusieurs styles sont représentés : sitcom (The Big Bang Theory), série historique (The Tudors), science-fiction (Doctor Who), série judiciaire (The Good Wife), policière (NCIS), espionnage (Homeland), etc. Le doublage est à l’honneur dans ce livre, mais quelques références sont faites au sous-titrage, notamment pour évoquer son rôle dans la complicité établie avec le spectateur (langues inventées employées dans Star Trek et Game of Thrones par exemple).
Introduction
Authors: Bisenius-Penin Carole , Audet René , Gervais Bertrand
Published: October 2022

Partant d’un état de situation montrant la transformation actuelle des pratiques de création et de diffusion de la littérature, ce texte vise à mieux cerner la notion émergente d’arts littéraires, que les articles de ce dossier abordent sous des angles variés.
Les éditions Verticales, une éthique et une politique de la littérature
Authors: Lecacheur Maud
Published: October 2022

Cette recension revient sur la publication du volume collectif consacré aux Éditions Verticales à l’occasion de leur vingtième anniversaire : « Éditions Verticales, ou comment éditer et écrire debout ». Il synthétise les apports des contributions proposées dans cet ouvrage, qui esquisse un portrait pluriel de la maison d’édition, multiplie les approches critiques sur le phénomène éditorial et permet d’aborder plusieurs enjeux de la création littéraire contemporaine.
Real-Time Cyber Analytics Data Collection Framework
Authors: Maosa Herbert , Ouazzane Karim , Sowinski-Mydlarz Viktor
Published: October 2022

In cyber security, it is critical that event data is collected in as near real time as possible to enable early detection and response to threats. Performing analytics from event logs stored in databases slows down the response time due to the time cost of database insertion and retrieval operations. The authors present a data collection framework that minimizes the need for long-term storage. Events are buffered in memory, up to a configurable threshold, before being streamed in real time using live streaming technologies. The framework deploys virtualized data collecting agents that ingest data from multiple sources including threat intelligence. The framework enables the correlation of events from various sources, improving detection precision. The authors have tested the framework in a real time, machine-learning-based threat detection system. The results show a time gain of 300 milliseconds in transmission time from event capture to analytics system, compared with storage-based collection frameworks. Threat detection was measured at 95%, which is comparable to the benchmark snort IDS.
Management of Product Quality and Competitiveness of Agricultural Enterprises in the Context of International Integration
Authors: Onegina Viktoriya , Babenko Vitalina Alekseevna , Kravchenko Yuliia , Vitkovskyi Yurii , Anisimova Olga
Published: October 2022

The role of quality management in the enhancement of competitiveness of enterprises is considered. The modern factors of quality of product assurance as a component of enterprise competitiveness are defined by authors. The data on the milk prices of different classes sold by agricultural enterprises for dairy plants and the cost of milk production at these enterprises in 2015-2019 in Ukraine were analyzed. This analysis testifies low incentives of milk producers to increase the quality of products due to the cost-price factor and substitution effect. The main blocks of the integrated quality management system (IQMS) are designed for agricultural enterprises to increase their competitiveness. The construction of IQMS of enterprises is made on the foundation of TQM and added by the focuses, tools, blocks, and forms of integration within the system and with other enterprise systems and the external environment. The findings of this study came up with the importance of implementing marketing of quality block, and built-in environment quality management in all blocks of IQMS.
Sentiment Analysis on Movie Reviews Dataset Using Support Vector Machines and Ensemble Learning
Authors: Razia Sulthana A.  , Jaithunbi A. K.  , Harikrishnan Haritha , Varadarajan Vijayakumar
Published: October 2022

The internet makes it easier for people to connect to each other and has become a platform to express ideas and share information with the world. The growth of the internet has indirectly led to the development of social networking sites. The reviews posted by people on these sites implies their opinion, and analysis over reviews is required to understand their intent. In this paper, natural language processing technique and machine learning algorithms are applied to classify the text data. The contributions of the proposed approach are three-fold: 1) chi square selector is applied to select the k-best features, 2) support vector machines is executed to classify the reviews (hyperparameters of the SVM classifier are tuned using GridSearch approach), and 3) bagging algorithm is applied with the base classifier over the newly built SVM classifier. The number of base classifiers of the bagging algorithm is varied accordingly. The results of the proposed approach are compared to the similar existing work, and hence, it is found to achieve better results as compared to the existing systems.
A Survey of Automatic Text Classification Based on Thai Social Media Data
Authors: Tanantong Tanatorn , Parnkow Monchai
Published: October 2022

In the digital age, the information on social media, such as Facebook, Twitter, and Instagram, is increasing rapidly. Therefore, it has led to studies and researches on social media analytics to extract useful models or knowledge from the data. One of the most interesting topics in social media analytics is text classification on social media data. However, since social media data has a diverse and complex data structure, text analysis and classification are considered a challenging issue that requires a specific technique to implement. The objective of this review paper is to collect and review research related to the automatic classification of Thai text on social media by presenting and explaining the process of text classification on various issues. These include data collection and data sources, amount of data and data preparation for research, feature extraction methods, text classification automated modeling methods, efficacy evaluation and measurement methods, the results of text classification, and summary of the overall trend of research on the topic.
Analysis of Safe Storage of Network Information Data and Financial Risks Under Blockchain Combined With Edge Computing
Authors: Liang Xiao , Ruan Wenxi , Xu Zheng , Liu Ji
Published: October 2022

To discuss the control of financial risks (FRs) under blockchain (BC) and improve network information security (NIS) and data security, edge computing (EC) combined with BC is proposed to control the risks of the big data (BD) financial system. Firstly, the BC-based financial system is introduced, and the characteristics of BC such as decentralization, tamper-resistant, and smart contract are analyzed. Secondly, the development status of NIS and the characteristics of marginal computing are explained, and the control model of NIS is established. Then, EC is used to encrypt the identity authentication system to ensure data security, and the BC-based FR evaluation model is established. Finally, a questionnaire is designed regarding the NIS model, and the results are analyzed. A simulation experiment is conducted regarding the index evaluation of the BC-based FR evaluation model. The experimental results indicate that network personnel control, environment, and technology have positive effects on NIS, and the impact factors are 0.26, 0.24, and 0.33, respectively.
O Liceu de Artes e Ofícios do Recife e suas táticas de instrução de trabalhadores negros no período pós-emancipação
Authors: Santos Yan Soares , Silva Adriana Maria Paulo da
Published: October 2022

Neste artigo, investigamos as relações verticais articuladas entre os trabalhadores negros do mercado de edificações, consócios da Sociedade dos Artistas Mecânicos e Liberais, e os poderes públicos de Pernambuco, enquanto tática (Certeau, 2011) em prol de melhorias de condição de vida, apesar da insistente construção de teorias e práticas racistas no Brasil. Depois, analisamos algumas fotografias do Liceu de Artes e Ofícios (acervo da Universidade Católica de Pernambuco), instituição voltada para a instrução daqueles trabalhadores durante o pós-emancipação (Rios & Mattos, 2004). Evidenciamos que o liceu se direcionou para a instrução de crianças negras no Recife, bem como pugnou pela dignificação da condição de pessoas livres e trabalhadoras e pela manutenção de suas atividades coletivas.
Las maestras norteamericanas que trajo Sarmiento y las que vinieron después
Authors: Rodríguez Laura Graciela
Published: October 2022

En este artículo haremos foco en el trabajo que desarrollaron las maestras norteamericanas en la Argentina. Analizaremos la normativa que hizo posible su llegada y la ubicación que les dieron; estudiaremos el contenido de los informes que escribieron algunas directoras; y los testimonios de ex alumnos y contemporáneos. Mostraremos que existió una distancia importante entre la letra de los documentos oficiales y lo que sucedió en la realidad; plantearemos que los informes elaborados por las directoras revelaban que tuvieron que lidiar con las mismas situaciones que sus colegas argentinas al tiempo que sus gestiones tuvieron ciertas particularidades; y revelaremos que a los argentinos les llamaban la atención su aspecto físico, el tipo de disciplina que impusieron, y cierta autonomía en el manejo de las Escuelas.
A Escola Nova autoritária proposta nos primórdios do Estado Novo em Portugal
Authors: Celeste Filho Macioniro
Published: October 2022

Em 1934, no começo do Estado Novo em Portugal, foi proposta a implantação da Escola Nova nas escolas portuguesas. A concepção dessa Escola Nova foi então instrumentalizada para se adaptar a um regime autoritário, em processo de consolidação nesse país. Concebia-se, então, uma Escola Nova autoritária. É propósito deste artigo apresentar contextualizadamente a campanha pela Escola Nova divulgada pelo jornal Diário da Manhã, órgão do regime salazarista. A metodologia utilizada foi a de pesquisa e análise documental, tendo como fonte privilegiada os editoriais sobre o tema publicados no Diário da Manhã. É objetivo deste trabalho compreender e elucidar os processos de ressignificação autoritária que as ideias da Escola Nova tiveram no início do Estado Novo em Portugal.
Self-Sensing Properties of Carbon Black or Graphite Modified Fly Ash Geopolymer under Flexure
Authors: Mizerová Cecílie , Rovnaník Pavel , Kusák Ivo , Schmid Pavel , Topolář Libor
Published: October 2022

Alkaline activated materials and geopolymers are recently widely involved in studies concerning their potential for advanced composites with enhanced electrical properties. This paper reports self-sensing behaviour of fly ash mortar doped with carbon black or graphite conductive admixture subjected to loading in three-point flexural test. Development of self-sensing properties and deformations of all mortars was initially investigated under flexural loading cycles with constant amplitude, final stage of the experimental part consisted in loading till fracture. Both reference and modified geopolymers failed to achieve satisfactory self-sensing performance during the cyclic loading but certain differences in fractural properties were observed.
Lightweight Concrete with Agglomerated Aggregate Based on Fly Ash
Authors: Křížová Klára , Tomáš Mazán
Published: October 2022

The production of lightweight concrete is mainly carried out in the traditional way using lightweight ceramic aggregates. The aim of the pilot research was to verify the possibility of producing lightweight concrete based on artificial aggregate in the form of agglomerated aggregate from high temperature fly ash. A representative of such aggregate is the artificial aggregate referred to as aploporite. This aggregate is characterised by comparable grain strength to ceramic aggregates but, on the other hand, has a relatively high absorption rate of up to 30 %. Concrete formulations with up to 50% replacement of natural aggregate by aploporite have been proposed in order to achieve the volumetric weights characteristic of lightweight concrete. The results obtained confirmed that it is possible to produce lightweight concrete with this aggregate and to achieve strengths comparable to those of ordinary concrete.
Assessment of Microstructural and Mechanical Properties of 420 Stainless Steel Fabricated by Laser Powder Bed Fusion
Authors: Bongao Harveen , De Yro Persia Ada N. , Chadha Kanwal , Tian Yuan , Aranas Jr. Clodualdo
Published: October 2022

In this work, fabricated samples of additively manufactured 420 stainless steel (420SS) via laser powder bed fusion (LPBF) process were analyzed. The microstructural features, grain morphology, crystallographic texture, phase composition, and tensile properties were evaluated for both as-printed and heat-treated conditions. The as-printed condition exhibits a yield strength of 1083 MPa and a tensile elongation of 21.2%. Microstructure analysis revealed that its comparable ductility is due to the presence of 15.2 % of retained austenite. After the successive heat treatment procedure, the yield strength improved significantly to 1388 MPa while decreasing the tensile elongation to 12.4 %. The yield strength obtained in the heat-treated condition was superior to previously reported literature values of precipitation hardening stainless steels fabricated by LPBF, and 420SS fabricated using different additive manufacturing processes. This improvement in yield strength is attributed to the coarsening of martensite laths and needles, elimination of retained austenite phase, and the carbide precipitation of 1.9 vol. % in the microstructure. The results in this work proved that the tensile properties and microstructure were greatly influenced by laser parameters and can be tailored accordingly using different heat treatment techniques.
Belite-Rich Cement - A more Environmentally Friendly Alternative to Ordinary Portland Cement
Authors: Cába Vladislav , Sedlačík Martin , Iliushchenko Valeriia , Kalina Lukáš
Published: October 2022

Today, the attention of many research teams in various industries is focused on reducing greenhouse gas emissions, especially reducing carbon dioxide production. Ordinary Portland cement (OPC) regarding the scale of its production around the world (annual production is around 3 Gt) is a major contributor to the carbon dioxide produced. Approximately one ton of CO2 is formed per ton of Portland clinker. Thanks to this, there is a general effort to find a suitable alternative that would partially or even fully replace the OPC. One of the possible alternatives is to burn the clinker to a lower temperature (1 250 – 1 300 °C) and thus obtain clinker where the majority phase will be belite instead of alite. Belite-rich clinker is currently used for types of cement with low heat of hydration and good durability properties. For this reason, there is a growing interest in this non-traditional cement. In this study, several points concerning belite-rich clinker production were examined: (i) the optimal C/S ratio to result in belite, (ii) the optimum firing temperature, and (iii) the potential impact of the temperature shift on the composition.
Computational Studies of Self Assembled 3,5 Bis(Tri Fluoro Methyl) Benzyl Amine Phenyl Alanine Nano Tubes
Authors: Sivanathan M. , Karthikeyan B.
Published: October 2022

In this work 3,5 Bis(Tri fluro methyl)Benzyl amine phenyl alanine a monmer molecule is DFT theoretically optimized to get the structural insight of the molecule. Band gap energy, Mullikan atomic charges, DOS spectral analysis, HOMO - LUMO, Electrostatic surface potential , molecular electrostatic potential and theoretical Raman spectral analysis is computed and compared with the experimental data .Since this molecule shows self assembly similar to peptide molecules it is quite interesting to analyze its structure based on theory and experimental the results suggests the H –boding interactions between the molecules is the key mechanism. The band energy from DOS plots suggests the molecular interactions through π-π .The possibility of the self assembly is explained further from Raman spectral studies that tells the mode specific interaction among the molecules..
The Development of Composites Based on Alkali-Activated Matrices Resistant to Extreme Temperatures
Authors: Dufka Ámos , Melichar Jindřich , Melichar Tomáš , Bydžovský Jiří
Published: October 2022

The article presents the results of research focused on the behavior of composites with a matrix based on alkali-activated materials when exposed to extreme temperatures (up to 1200°C). The behavior of the material based on alkali-activated fly ash, blast furnace slag, metakaolin, their mutual combinations respectively was analyzed in detail. The effect of thermal exposure on the properties of the developed materials was assessed by a complex of physical, mechanical and chemical methods. A specific area of research was the examination of the rheological properties of the developed mixtures in the fresh state.
Preparation and Properties of PEDOT:PSS-Based Thermoelectric Thin Films
Authors: Jin Li , Zhang Jian Wei , Ju Su
Published: October 2022

PEDOT:PSS (poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate)) has the advantages of excellent thermoelectric properties, good environmental stability, outstanding processability, etc. It is a new type of polymer thermoelectric material with great development potential to improve its conductivity and Seebeck coefficient by compounding or doping with nanomaterials. In this study, PEDOT:PSS was composited with carbon nanotubes (CNTs) to prepare PEDOT:PSS/CNT composite films with excellent thermoelectric properties. The ionic liquid (IL) and polymer surfactants (PEG, PEG-PPG-PEG) doping on the thermoelectric properties of the composite system. The maximum electrical conductivity and Seebeck coefficient of the prepared PEDOT:PSS/CNT composite film are 1581.06 S/cm (CNT content of 10 wt%) and 20.28 μV/K (CNT content of 40 wt%), respectively, and the maximum power factor can reach 52.51 μW ·m-1·K-2 (CNT content is 30wt%). After the introduction of PEG doping, the Seebeck coefficient can reach up to 23.62 μV/K.
Influence of KOH and Granite Cutting Waste on the Formation of Calcium Silicate Hydrates under Hydrothermal Conditions at 200 °C
Authors: Kazlauskaitė Greta , Dambrauskas Tadas , Baltakys Kęstutis
Published: October 2022

In this work, the influence of KOH and complex KOH and granite cutting waste additives on the formation of calcium silicate hydrates under hydrothermal conditions at a temperature of 200 °C was examined. For the synthesis, the pure mixture of calcium oxide and quartz, as well as the mixtures with different additives (KOH and complex KOH and granite cutting waste), were performed. The molar ratio of CaO/SiO2 in the primary mixtures was equal to 1:1.5. The hydrothermal synthesis of calcium silicate hydrates has been carried out in unstirred suspensions in an autoclave under saturated steam pressure at 200 °C, when the duration of the synthesis was equal to 16, 48, and 72 h. It was determined that the used additives significantly change the formation sequence and stability of calcium silicate hydrates. The additive of KOH promotes the reactivity of quartz, while the additive of granite cutting waste promotes the formation of lower basicity calcium silicate hydrates. Synthesized products were characterized by powder X-ray diffraction analysis, simultaneous thermal analysis, and Fourier-transform infrared spectroscopy.
Effect of Sintering Temperature on the Properties of Calcia-Stabilized Zirconia (Ca-SZ) Bioceramics
Authors: Johari Anis Syamimi , Ghani Zuryati Ab. , Shariff Khairul Anuar , Liszen Tang
Published: October 2022

This paper highlights the study on effect of sintering temperature on the morphologies and compressive strength of zirconia ceramics doped with calcium oxide (CaO) as stabiliser to enhance the zirconia structure undergo sudden phase transformation. CaO reportedly has good stability in cubic phase at all temperature, which open up a new possibility for new material to evolve for zirconia ceramic dental application. CaO synthesis from calcium nitrate tetrahydrate (Ca(NO3)2.4H2O) is used as metal precursor to produce Calcia-Sabilized Zirconia (Ca-SZ). 8 wt. % of Ca(NO3)2.4H2O and 92 wt. % of zirconium oxide (ZrO2) mixed and stirred together with ethanol as solvent and sintered at temperatures 1200, 1300 and 1400°C. Surface morphologies are investigated by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX) element analysis, X-ray Diffraction (XRD) for composition studies, as well as compressive strength to figure out the mechanical properties of Ca-SZ sample. Increment in sintering temperature enhance the surface morphologies, the phase of Ca-SZ become intensified and transformed from monoclinic to tetragonal ZrO2 also flexural strength increases as well. The compressive strength recorded the highest value of 4537 MPa for Ca-SZ at temperature of 1400°C. The optimal temperature of Ca-SZ suitable for dental application was 1400°C due to the good morphologies and mechanical properties suitable for teeth restoration. The development of Ca-SZ can establish a pathway as an alternative material for dental applications.
In Search of Silver Line from Immigrant Entrepreneurs in Japan: Review of Literature
Authors: Karunaratne H. D.
Published: October 2022

The aim of this paper is to review published documents on immigrant entrepreneurship in conceptual, theoretical and empirical perspectives and summarize existing studies on immigrant entrepreneurs in Japan including Sri Lankans. Findings of this paper indicates several gaps to be addressed for further development of research on immigrant entrepreneurship in Japan as (1) it is a relatively new concept and a limited number of studies have been conducted due to small size of foreign born population and their scatted nature, wider language and cultural differences, insufficient macro-level data and difficulties in accessing micro-level information; (2) there are enough evidences to show that the number of immigrant entrepreneurs in Japan have been increasing in recent past and are predicted to increase in future; (3) most of the existing Asian immigrant entrepreneurs in Japan have emerged through migrant workers, assets generated in Japan and married to Japanese; (4) since services and ICT sectors have been expanding, foreigners have new avenues to start businesses in Japan (5) the large number of SMEs in Japan still focus on local markets with high technical abilities and suffer due to the limited access to Asian markets, although mutual benefits can be expanded if they have wider access to develop linkages with immigrant entrepreneurs in Japan; and finally, (6) internalization of immigrant businesses in Japan (export orientation, mergers and acquisition of foreign firms and assets, joint ventures and FDI projects started in collaboration with Japanese banks) has been a new phenomenon in the literature of immigrant entrepreneurship in the 21st century. Therefore, immigrant entrepreneurship continues to remain as an unexplored research field in Japan.
Antecedents of Export Performance of Small and Medium Scale Enteprises (SMEs) In Sri Lanka: The Role of Entrepreneur Behavior and Experience and the Moderation Role of Industry Context
Authors: Mudalige D. M.
Published: October 2022

A number of scholarly researchers have explored the benefits of engaging in international activities in increasing sustainability of SME sector. However, SMEs offer a poor contribution to export income of Sri Lanka compared to other countries. Although research has shown that the entrepreneur characteristics are associated with enhanced export success, past research has failed to identify the entrepreneur characteristics that are most influential in SME export success in Sri Lankan context. Much of the research in Sri Lanka has focused on external or institutional factors and barriers for exports with little attention to entrepreneur behaviour. Few studies have focused on studying internal barriers and export success. This study aimed to fill this research gap by testing the relationship between entrepreneur characteristics and export performance from a capabilities perspective. This study argues that entrepreneurial orientation, social capital and human capital are important capabilities of the entrepreneur which lead to successful export performance. These capabilities are known to play a synergic and complementary role which allows the entrepreneur to develop a dynamic stance that is essential in the international market. This research followed quantitative research methodology using non-disguised questionnaire. A randomly selected sample of 197 export SMEs in Sri Lanka was analyzed. The results were analyzed using Partial Least Squares Structured Equation Modelling (PLS-SEM) method. This study established that entrepreneur capabilities namely entrepreneurial orientation, social capital and human capital have a significant positive influence on the export performance of SMEs. Further, using Multi-Group Analysis (MGA), it was found, that industry context which the SME operates has a moderation effect on the relationship. The outcome of this research will enhance our understanding of success factors of SME export performance.
The Role of Social Commerce on Consumer Decisions: A Theoretical Foundation
Authors: Hettiarachchi H. A. H. , Wickramasinghe C. N. , Ranathunga S.
Published: October 2022

The advent of social commerce phenomenon has largely started gaining attention in consumer behavior literature. Apparently, social commerce has shifted more power from the seller to the buyer and predominately fueled to strengthen e-commerce acceptance. Thus, understanding consumer behavior in the context of social commerce adoption has become inevitable for business organizations that aim at elevating their bottom-line, competitiveness and ensuring sustainability. Moreover, social ties facilitated in social commerce enable trust as the most promising benefit while alleviating the perceived risk, which was the major striking concerns with online commerce over the years. Though examining the influence of social commerce on consumer behavior and decision making is started getting scholarly attention recently, adequate explanatory model laid on the relevant theoretical foundation in this regard is still fragmented. Consequently, researchers constructed this theoretical foundation with the intention of enriching extant literature and to lay a formal groundwork for investigating this phenomenon. Hence, this paper aimed to comprehend: the nature of online social networks, emerging social commerce phenomenon, the role of social support in social commerce and influence of social commerce on consumer decisions respectively.
Review of Drivers of Marketing Oriented Social Entrepreneurship in Sri Lanka and need for Adopting Marketing Capabilities
Authors: Hilal M. I. M.
Published: October 2022

The objective of the paper is to give clear understanding of the social entrepreneurship and gives the importance of being marketing oriented and adopting marketing capabilities for Sri Lankan social entrepreneurship. While social entrepreneurs are changing their conventional method of social entrepreneurship, marketing orientation is very much essential for social entrepreneurs to become a commercial business with the attributes of assisting to the society as large. In order to be marketing oriented, social entrepreneurship should also adopt marketing capabilities. As per the previous studies, social entrepreneurs cannot determine which marketing capabilities are needed for social entrepreneurs. Therefore, there is a need for research on the marketing orientation and marketing capabilities adopted by social entrepreneurs.
The Impact of HRM Practices on Organizational Performance Evidence from Public University in Sri Lanka
Authors: Lasanthika W. J. A. J. M.
Published: October 2022

The purpose of this paper is to study the impact of human resource management (HRM) practices on organizational performance. A total of 200 employees from a public university comprising of both academicians and non-academicians responded to the survey. The survey questionnaire had 33 items covering selected demographic factors, HRM practices and university performance. The study has found that HRM practices: recruitment and selection, training, performance appraisal, compensation and employee participation have a significant relationship with university performance. Training and performance appraisal gave highest contribution towards university performance. If the university aims to upgrade university performance, it should emphasize more on these HRM practices. Most studies have focused impact on HRM practices in manufacturing sector and this study targeted service sector, especially higher education sector. It also has attempted to add knowledge on the impact of HRM practices on university performance in Sri Lanka combining both the academicians and non-academic staff.
Corporate Governance Factors Influence to the Voluntary Disclosures in Banking and Finance Companies in Sri Lanka
Authors: Panditharathna K. M. , Abeywardana N. L. E.
Published: October 2022

The purpose of this research is to examine the relationship between corporate governance variables and voluntary disclosure level in banking and finance companies which are registered in the Colombo Stock Exchange (CSE) in Sri Lanka. To measure voluntary disclosure level of aforesaid companies used content analysis of annual reports for the period between 2012 and 2015. This study has developed a voluntary disclosure index which includes 83 items under 9 sub categories with the intention of measuring level of voluntary disclosures. Panel data analysis used to measure the relationships and this study used size of the board, proportion of independent directors, and board with female directors, a large audit firm as independent variables. Size of the firm, profitability, age and leverage are used as control variables. Empirical results of study indicates that independent directors and female directors on the board have significant positive relationships with voluntary disclosures whereas the board size has an insignificant positive relationship with voluntary disclosures and there is a significant negative relationship between voluntary disclosures and corporate governance.
Critical Realism and Case Study Strategy in Entrepreneurship Research
Authors: Dissanayake D. M. N. S. W. , Pavlovich K.
Published: October 2022

Case study is one of the most popular research strategies among the adherents of entrepreneurship. However, it is questioned in terms of the philosophy being used. This paper proposes Bhaskar’s critical realism as a coherent and a novel philosophical position that substantiates case studies to examine richer contextual phenomenon. Therefore, the compatibility of case studies with critical realist philosophy is argued. Further, the paper sets the scene for a discussion; the need of critical realism based entrepreneurship research. Realising entrepreneurship as a social phenomenon, it is argued that critical realism assists to contextualise research. Contextualisation even more facilitated as it favours a wide array of research methods to intervene the social world. However, critical realism cannot prove to be the right answer, its use depends on the researcher’s acceptance of its basis assumptions.
Effect of Mobile Banking Services on Financial Performance of Deposit-Taking Cooperative Societies in Kenya
Authors: Mugo D. M. , Muathe S. M. A. , Waithaka S. T.
Published: October 2022

Deposit-Taking Savings and Credit Cooperative Societies have embraced mobile banking services to address efficiency challenges characterized by poor information delivery channels and high operational costs and to enhance their financial performance. However, the effect of mobile banking services on the performance of Deposit-Taking Savings and Credit Cooperative Societies has not been well studied. Even though some studies have indicated the potential of mobile banking services towards improving organizational performance, other studies have indicated otherwise. Given this contradiction, this study sought to investigate the effect of mobile banking services on the performance of Deposit-Taking Savings and Credit Cooperative Societies in Kenya. Descriptive and explanatory research designs were adopted. Using simple random sampling, the study was based on a sample of 86 Deposit-Taking Savings and Credit Cooperative Societies drawn from a target population of 110 Deposit-Taking Savings and Credit Cooperative Societies that were licensed by SACCO Societies Regulatory Authority as at 31st December 2011. The study found that three mobile banking services including mobile deposits services, mobile bill payments services and mobile statements services had a positive statistically significant effect on the financial performance of Deposit-Taking SACCOs in Kenya and therefore recommends their utilization to enhance the financial performance of the SACCO subsector.
Leading the Change: Context of a Manufacturing Company
Authors: Wasaba J.
Published: October 2022

Concept of change leadership revolves around a quoted public porcelain tableware company in Sri Lanka, which is having a 34-year history in making quality tableware products to the export market. Company was set up with the assistance of a Japanese company and influence of the government of Sri Lanka and had a rich, and deep routed culture embedded into the village. Despite the quality of product and global recognition, the company was malfunctioning: export share dropped, cost of manufacturing shot up, export prices dwindled, dynamism and initiatives of people eroded. Company went through various ownership and management changes, and was in financial crisis in a number of occasions. Lack of business focus and non-sensible investment decisions by the top management were pointed out as reasons for the downfall by employees of the company. This case was reviewed in the context of transformational leadership, change management and management innovation point of view along with practical aspects experienced by the CEO who brought change leadership to the organization. In doing so, review of related theory and literature was carried out to substantiate the change initiatives. It was found, transformational leadership which envision and embrace change will always have positive impact whilst change procedure, without an effective leadership is nonexistent. The necessity and the urgency required in a process and belief in team work are ingredients of transformation. Once the transformation is progressing, sustainability or retention of the systems, procedures and behaviors are the challenges in execution of the transformation faces by the leader who has to take control.
Rotor-Body Coupled Vibration Analysis of a High-Speed Lift Offset Coaxial Rotor
Authors:   Konkuk University, Jung Sung ,   Chungnam National University, Hong Sung-Boo , Bae Jae , Hong Seong , Park Jae-Sang
Published: October 2022

A rotor-body coupled vibration analysis is performed for a coaxial compound lift offset (LO) helicopter. The vehicle is featured by two-bladed counterrotating rotors, main wing, and auxiliary propulsions installed at each wing tip. The fuselage analysis model is constructed considering the existing designs of conventional helicopters and tilt rotors, while the blade structural design is established modifying the original platform of XH-59A blades. As many as 17 free vibrating modes are used to represent the airframe motions after conducting a convergence test on the vibration behavior of the rotor. An in-house structural design optimization framework based on the evolutionary algorithm is employed to systematically search the best suited combinations of the objective function while meeting all the design constraints set from the static and structural dynamics perspectives. The resulting property values of the optimized configuration are correlated with those by XH-59A. The predicted results on the performance show in good agreement with the flight test data of XH-59A. The trim, loads and vibration responses are examined using either isolated coaxial LO or compound coaxial LO rotors. Key results showing the beneficial effects of LO rotor in both configurations are discussed with the shaft-fixed or shaft-free conditions of the compound helicopter in high speed flights.
Fabrication, Testing, and 3-D Comprehensive Analysis of Swept Tip Tiltrotor Blades
Authors:   University of Maryland, Sutherland James , Datta Anubhav
Published: October 2022

This paper covers the design, fabrication, testing, and modeling of a family of Froude-scale tiltrotor blades. They are designed with the objective of gaining a fundamental understanding of the impact of a swept-tip on tiltrotor whirl flutter. The goal of this paper is to describe the development the blades needed for this purpose. The rotor is three bladed with a diameter of 4.75 feet. The blades have a VR-7 profile, chord of 3.15 inches, and linear twist of-37° per span. The swept-tip blades have a sweep of 20° starting at 80% R. The blade properties are loosely based on the XV-15 design. A CATIA and Cubit based high-fidelity 3-D finite element model is developed. It accurately represents the fabricated blade and is analyzed with X3D. Experiments in a vacuum chamber were carried out to prove the structural integrity of the blades. Measured frequencies and strains were validated with X3D predictions proving the fidelity of the 3-D model. Thus, even though the wind tunnel facilities were closed due to COVID-19, hover and forward flight calculations for the blade stress could be performed numerically, using the high-fidelity 3-D structural model. The results prove the blades have sufficient structural integrity and stress margins to allow for wind tunnel testing.
CFD-CSD Support for Rotor Design Improvement to Reduce Vibrations
Authors:   German Aerospace Center (DLR), Martini Tanja ,   Airbus Helicopters, Schmidt Jürgen , Jones Michael , Mevenkamp Philipp , Peinecke Niklas
Published: October 2022

This paper demonstrates the recent success of applying advanced modeling and simulation digital tools to guide rotor design update to achieve a reduced vibration and an increased aerodynamic performance at high speed flight conditions. To understand and improve the vibration characteristics of the coaxial rotor configurations, a multi-year effort has been invested to develop a fully coupled Computational Fluid Dynamics (CFD) and Computational Structural Dynamics (CSD) methodology. The developed tool has been validated with early flight test data from the S-97 RAIDER® aircraft. The validated tool is then applied to carryout extensive design trade studies across a wide range of design variables. The goal is to gain a fundamental understanding of the coaxial rotor vibration physics and to identify practical design updates to achieve a reduced rotor vibration without adversely impact rotor aerodynamic performance. Therefore, impact of key design attributes on rotor aerodynamic performance is also being studied in parallel. Based on the design trade studies and considering manufacturing, cost and schedule, an updated rotor blade design is proposed and manufactured. Flight test of the updated rotor design confirmed the predicted reduction in rotor vibration and increase in rotor cruise performance. This study shows that using the current state-of-the-art methodology, when carefully validated and applied, can capture the complex rotor vibration physics due to fluid and structure interaction with sufficient accuracy to support the X2 Technology™ configurations.
Modeling and Analysis of Proprotor Whirl Flutter
Authors:   US Army DEVCOM AvMC, Yeo Hyeonsoo ,   US Army Research Lab, Kang Hao , Kreshock Andrew
Published: October 2022

The present paper studies the whirl flutter stability of the TiltRotor Aeroelastic Stability Testbed (TRAST) using the comprehensive analysis code Rotorcraft Comprehensive Analysis System (RCAS). TRAST wing/pylon are systematically modeled in RCAS as beams based on a NASTRAN model starting with a spar and more sophisticated models are incrementally built up by adding components one at a time. Natural frequencies are compared with those of the NASTRANmodelat each step. The elastic wing/pylon beam model is then combined with an elastic gimballed rotor model and whirl flutter analysis is carried out. Wing and pylon aerodynamics are also added to the model and their effects on stability are examined. Pitch spring stiffness has an important influence on whirl flutter speed. Increased pitch spring stiffness has substantially extended the flutter boundary.