bluuebunny/crossref_metadata_2025 huggingface dataset:
Potret Kinerja UMKM Sepatu Di Bogor Dalam Berkompetisi Pada Perekonomian Di Indonesia
Authors: Gendalasari Gen Gen , Triandi Triandi
Published: February 2020

The contribution of the micro, small and medium enterprises sector to gross domestic product increased from 57.84 percent to 60.34 percent in the last five years. Uptake of labor in this sector also increased, from 96.99 percent to 97.22 percent in the same period. (http://www.kemenperin.go.id, 2018), Problems with MSMEs vary, especially for shoe MSMEs.

The purpose of this study, 1) What is the performance of MSME shoes in Bogor; 2) What is the model of coaching that can be developed for MSME actors

The results of the study show that 1) based on evaluation it is known that the attributes of the production process, production equipment, production control, buildings and facilities, markets, quality standardization, business management, capital, and promotion require improvement. Difficulties in terms of capital make the company still survive with conventional and manual technology, so that production capacity is also relatively limited. In addition, the company's bookkeeping system is still directly controlled by the owner of the company. 2) Shoe MSMEs need guidance in terms of production processes and production facilities. As well as assistance in terms of developing market share both domestically and abroad and developing promotions so that products are more widely known
Analisis Kebijakan Pendanaan Jangka Panjang (Studi Kasus Pada Perusahaan Pt Sat Nusa Persada Tbk)
Authors: Nugraha Adithya Aria , Purba Jan Horas V , Sastra Heri
Published: February 2020

Funding policy discusses sources of funds to be used in running a feasibly worthy investment. Management undertakes funding policy to obtain sources of funds to run company’s operating activities. This study’s goal is to identify sources of funding taken efficiently from internal sources such as shares capital, retained earnings, current year profit, or the source of the funds derived from external parties, in this case short-term and long-term debts. In this research, the author used ratios which are profitability, liquidity, activity, solvability and equity analysis. Based on the research, we can conclude that the company’s sales and liabilities are decreasing. The sales is unstable, and it is affecting the company in a way that it will possible not fit to apply for a larger loans. Thus, sales stability will affect on debt ratio.
Analisis Penerapan Metode Full Costing Dalam Perhitungan Harga Pokok Produksi Untuk Penetapan Harga Jual
Authors: Lestari Alviani , Rosita Siti Ita , Marlina Tri
Published: February 2020

Lemari Syukur Factory is a home industry that produces wardrobe cabinets. It determines selling price based estimation which is inappropriate. The main issue is that the company does not possess proper cost classification system in determining the cost of goods sold.  This research is aimed to assist determining the cost of production as the basis for making up finished goods price using full costing method. This research includes quallitative analysis research. Data were collected through interviews and documentation and analyzed by qualitative analysis techniques.

The study resulted (1) for cost of goods sold calculation, the factory charged direct material costs of Rp. 325.000.000, direct labor cost of Rp. 211.200.000 and factory overhead cost of Rp. 556,800,000. Total production cost to produce 2,196 units of cabinets in one year amounted to Rp. 1.093.000.000. The factory estimated cost of goods sold for each unit is of Rp. 497.723, and the selling price per cabinet unit is Rp. 500.000. (2) Using full costing method, the cost calculation consisted of direct material costs of Rp. 325.000.000, direct labor cost equal to Rp. 211.200.000, factory overhead fixed cost Rp. 12,042,250, and variable factory overhead cost Rp. Rp. 525.550.000. Thus, the cost of production was Rp. 1,073,792,250 for 2,196 units of cabinets. The cost of goods sold per cabinet unit is Rp. 488.976 and the selling price is Rp. 619.559. (3) The difference in cost of goods sold between full costing and the factory calculation is of Rp 8.747. While the difference between finished product price using full costing and the factory estimation is Rp 133.766.
Pengaruh Verifikasi Data Nasabah Kredit UMKM dan Nilai yang Diberikan untuk Menghindari Kredit Bermasalah
Authors: W Christophorus Angga , Roestiono Harry
Published: February 2020

Variable used for this study consists of two variables independent that is Data Verification Influence of Micro, Small, and Medium Business Credit and Value Of Guarantees Provided with one variable dependent that is Avoid Problem Loans. Period of research conducted on quarterly financial statements from 2016-2017. Method used in this research is descriptive method.

            This study intend to find out the effect of verifying the exact data and value of guarantee provided by the debtor capable to avoid problem loans in the future. The study results showed that consumers verification data and the type of guarantee able to make debtor avoid problem loans, it proven from decreased number of total problem loans during 2016 – 2017, although total credit still increase significant.
Trouver sa voix dans le paysage sonore d’une langue étrangère
Authors: Érard Yves
Published: February 2020

Cet article aborde le problème de la subjectivité de la voix dans l’apprentissage du français langue étrangère. Deux exemples d’apprentissage de la lecture à haute voix, en langue 1 puis en langue 2, montreront que mon expression dans une langue qui n’est pas la mienne ne consiste pas à m’approprier cette langue, mais à accepter de me laisser traverser par elle. L’expression de soi se tisse dans les expressions d’autrui. Je ne m’approprie donc pas une langue, c’est elle qui s’empare de moi. Puis-je supporter cette altération de mon expression par les mots des autres ? Cela dépendra de ma capacité à me rendre intelligible dans des rythmes et des musiques que je ne maîtrise pas encore. Cette intelligibilité sera fragile parce qu’elle impliquera toujours que je me reconnaisse moi et que je me fasse reconnaître dans un paysage sonore qui ne m’est pas encore bien familier. L’apprentissage d’une langue étrangère me demande un effort qui s’apparente à de la patience : vis-à-vis des autres, d’abord, vis-à-vis de moi-même, ensuite. Cette vision de la subjectivité dans une langue étrangère met en évidence que l’apprentissage d’une confiance en soi se construit symétriquement à l’apprentissage d’une confiance en autrui, d’une confiance en soi comme un autre.
Partenariats écoles-secteur infanto-juvénile : quel impact sur la trajectoire d’enfants qui présentent des difficultés psychiques ?
Authors: Bonneton Sandrine
Published: February 2020

La création de partenariats locaux qui réunissent professionnels des écoles primaires et du secteur infanto-juvénile se développe, faisant évoluer les pratiques professionnelles au regard des droits, des besoins des enfants et des attentes parentales à leur égard. Ces pratiques soulèvent des questions d’ordre théorique, pratique et éthique, qui sont autant de freins à leur développement. Toutefois, dans le contexte actuel, ces pratiques partenariales ont l’avantage de faciliter l’accès à la prévention et aux soins et ouvrent la possibilité d’une re-configuration des attentes et des besoins en soins pédopsychiatriques de proximité.
High intensity exercise increases brain derived neurotrophic factor expression and number of hippocampal neurons in rats
Authors: Pranoto A. , Wahyudi E. , Prasetya R.E. , Fauziyah S. , Kinanti R.G. , Sugiharto S. , Rejeki P.S.
Published: February 2020

The decrease in brain derived neurotrophic factor (BDNF) expression and number of hippocampal neurons are two indicators in the decrease of memory function, cognitive, and learning function. The present study aimed to determine BDNF expression and the number of hippocampal neurons on moderate and high intensity exercise by listening to music. Design of the present study was a randomised control group post-test only design. A total of 33 male rats, Rattus norvegicus strain Wistar, aged eight weeks, with body weight 160±20 g were randomly divided into three groups: Group 1 (G1) (n=11, control group without intervention), Group 2 (G2) (n=11, performed moderate intensity exercise, treadmill 14-16 m/min for 30 min by listening to pop music with fast tempo of 160 beats/min) and Group 3 (G3) (n=11, high intensity exercise, treadmill 22-25 m/min for 20 min by listening to pop music with fast tempo of 160 beats/min). The intervention was performed between 17:00-21:00 pm, three times per week for 12 weeks. Blood and brain samples were obtained and evaluated 12 h after the end of the last exercise. BDNF serum was measured using ELISA and hippocampal neurons were stained by haematoxylin-eosin and counted using OlyVIA software. Study results showed a BDNF for G1 of 1,098.14±135.31 pg/ml, G2 of 1,113.72±65.87 pg/ml, and G3 of 1,331.56±105.35 pg/ml (P=0.001). The total number of hippocampal neurons for G1 was 54.75±6.83 cells, for G2 59.87±7.68 cells, and G3 80.58±9.79 cells (P=0.001). According to the study it can be concluded that high intensity exercise combined by listening to music with a fast tempo of 160 beats/min increases BDNF expression and the number of hippocampal neurons.
Des vérités contrariantes ? Les tapisseries, des performances et des œuvres multiples
Authors: Brosens Koenraad
Published: February 2020

S’appuyant sur des données empiriques, le présent article met en lumière une vérité apparemment contrariante concernant la tapisserie, notamment la paternité multiple et diachronique des œuvres qui complexifie les recherches en matière de tapisserie. Cette vérité contrariante souligne cependant le caractère « permissif » de l’ontologie du médium qui permet, du moins dans une certaine mesure, de considérer les tapisseries comme des œuvres multiples. Ce cadre théorique offre l’occasion d’inscrire expressément la tapisserie à l’intersection de trois sous-disciplines de l’histoire de l’art, à savoir l’histoire de l’art traditionnelle, orientée sur les artistes et les œuvres, la sociologie de l’art, et la toute nouvelle approche numérique de l’histoire de l’art, basée sur les données. À l’aune de cette vérité apparemment contrariante, il est tentant de penser que l’étude de la tapisserie peut devenir un précédent opportun pour l’étude d’autres domaines de l’histoire de l’art.
Portraits en série et reproduction mécanique des traits à l’âge des Lumières et sous la Révolution : entre idéal démocratique et stratégies commerciales
Authors: Lécosse Cyril
Published: February 2020

En retraçant les étapes qui conduisent à la mise au point de nouvelles techniques permettant la reproduction « mécanique » des visages au xviiie siècle, cet article propose de réfléchir aux problèmes que pose l’étude des projets de standardisation du geste artistique dans le contexte d’un essor plus général du portrait de petit format (dessin, miniature, peinture). À la faveur d’un marché porteur, plusieurs machines sont ainsi conçues (ou perfectionnées) pour assurer la démultiplication rapide et bon marché d’effigies de soi, à la façon d’instantanés fidèles et aisément duplicables. C’est le cas notamment du pantographe, mais également de la camera obscura ou encore du physionotrace qui s’impose comme une authentique machine à tirer la silhouette. La production des portraits en série (dimensions et coût standardisés) connaît une expansion remarquable sous la Révolution, qui s’explique, en partie, par la multiplication inédite des acteurs du jeu politique et par la démocratisation sans précédent du marché artistique. Quelques années avant l’invention de la photographie, ces initiatives marquent une étape importante vers la diffusion culturelle de masse qui est une des caractéristiques du xixe siècle.
Lecture – Le cinéma d’avant-garde : quelles avant-gardes, pour quel cinéma ?
Authors: Bovier François
Published: February 2020

Ce compte rendu croisé de deux ouvrages récents sur le cinéma d’avant-garde, Cinéma absolu. Avant-garde 1920-1930 de Patrick de Haas et Le Cinéma au défi des arts de François Albera, entend mettre en perspective deux approches distinctes d’un phénomène encore relativement peu étudié. Le premier développe une approche érudite et systématique, offrant une vue synoptique d’un champ qui est perçu comme autonome. Constituer une encyclopédie raisonnée du cinéma d’avant-garde, c’est là l’une des principale gageures de l’ouvrage somme de Patrick de Haas. Le second propose, sur le mode des miscellanées, une série d’études de cas qui se caractérisent par un décloisonnement du médium du film, en confrontant le modèle cinématographique à des procédés explorés dans les arts plastiques. Pour François Albera, il s’agit de penser l’articulation entre l’art contemporain et le cinéma sur le mode de l’interaction réciproque et de la contamination, à travers une conception élargie du cinématisme.
Islamic Banking in North Africa
Authors: Daoud Yomna , Kammoun Aida
Published: February 2020

Investors from North Africa are interested in financial products with ethical focus and specific risk profile and are in accordance with their religious convictions. This chapter reviews the status of Islamic banking (IB) in North Africa in which the governments have started introducing fundamental legal and regulatory frameworks to promote the development of Islamic finance. The study also discusses the prospect of Islamic banking in these jurisdictions. To fulfill the objectives of the proposed study, a qualitative research was performed. The empirical approach of this study analyzed the financial position of different banks in North African countries. Overall, Islamic finance can be an ideal opportunity for financing infrastructure and development projects in North Africa.
Indigenous Language Media and Communication for Health Purposes in the Digital Age
Authors: Owolabi Toyosi Olugbenga Samson , Nurudeen Nahimah Ajikanle
Published: February 2020

All over the world, the issues of health and ill health have generated heightened attention among health professionals and communication experts. This is expected in view of the prevalence of increasingly life-threatening ailments. It is therefore not surprising that matters bordering on health have been elevated to the front burner of policy and decision making both at the national and multinational levels. This chapter, therefore, observes that the reason most health information doesn't get to the intended audiences and produce the desired effect is because they are not communicated in the most intelligible language to the people. Indigenous language media are potential channels through which health information could reach the grassroots where more than 70 percent of the nation's populations are resident. It also perceived that health communication could be made to produce more effect in this digital era as more citizen journalists could be raised to communicate in the indigenous language.
Intelligent Touristic Logistics Model to Optimize Times at Attractions in a Thematic Amusement Park
Authors: Reyes Aida-Yarira , Ochoa Carlos-Alberto , Sandoval Chávez Diego Adiel , Teran Evelyn
Published: February 2020

This chapter analyzes a thematic tourist park using a logarithmic model. The study shows that the application of the model allows the management of different routes to optimize waiting times and take advantage of the time allocated to the fun. The theoretical concepts were Dijkstra Algorithms. The investigation is exploratory in a single place. The data were obtained during the stay in the park of the year 2018 and was concentrated on a database. The research concludes that the application using the Dijkstra Algorithm on a mobile dispositive can determine the best places to visit and improve the experience in a thematic park.
Ambient Encounters in Retail “Discounters”
Authors: Calvo-Porral Cristina
Published: February 2020

Cheap prices are the central positioning criterion of discount stores and the key variable explaining the intention to shop in discounters. Accordingly, discounters design their stores to maximize their efficiency. However, price may explain only a part of customer satisfaction. The purpose of this study is to delve into the environmental factors affecting discount retail store satisfaction. A conceptual model is empirically tested on the influence of discount store environmental attributes of customer satisfaction. Data are analyzed through partial least squares-structural equation modeling (PLS-SEM) on a sample of 381 customers. Findings show that factors, different from low prices, influence satisfaction with discount stores. Despite customers seek for low prices, the store personnel positively influences customer satisfaction, followed by a convenient product assortment and an attractive product layout and a convenient store location. Discount store managers may use the store personnel as a way to differentiate from other retail competitors in a cost-service tradeoff.
The Sensory Dimension of Sustainable Retailing
Authors: Acuti Diletta , Vannucci Virginia , Pizzi Gabriele
Published: February 2020

The chapter contributes to recent debate on retailing and sustainability, addressing the role of atmospherics in affecting consumer perceptions. First, after reviewing the relevant literature about sustainable retailing, this research addresses some practices oriented towards sustainability that can be implemented by a retailer, and how they can be communicated to consumers. Then, using an experimental design, the authors test the impact of sustainability-oriented visual atmospherics on consumer perceptions and intentions. This chapter provides a comprehensive overview of past and current sustainability research in retailing, with a particular emphasis on store atmospherics. Future research should try to integrate the findings by investigating other sensory stimuli, such as tactile or auditory ones.
Can Virtual Customer Service Agents Improve Consumers' Online Experiences?
Authors: Soares Ana Maria , Pinho José Carlos , Heath Teresa , Alves António
Published: February 2020

This chapter focuses on the navigation experience in ecommerce. The authors address the impact of a number of hedonic dimensions, specifically perceived visual attractiveness, perceived enjoyment, and sociability, in consumers' online experiences. They develop and test a research model explaining how these factors affect trust, satisfaction, and ultimately, website loyalty. Findings from a survey carried out with 132 users of an airline's website, which displays a virtual customer service agent, support the model proposed. Specifically, results confirm that enriching consumers' sensory experiences online through aesthetics, an enjoyable experience, and a social interaction interface positively affects trust, satisfaction, and subsequently, loyalty.
Consumer Emotions Research in Luxury Contexts in Emerging Economies
Authors: Canguende-Valentim Cláudio Félix , Vale Vera Teixeira
Published: February 2020

The main objective of this chapter is to focus on the emotional experience in luxury contexts in emerging economies. Consumer research literature currently lacks studies of consumer emotions in emerging economies, except for some relevant studies of emerging consumption in China. This chapter reports a systematic literature review of luxury and consumer emotions aiming at mapping the main trends of research on this topic. The results show that the predominant type of methodology in these studies is mainly quantitative versus qualitative and mixed. The studies consider various antecedents of emotions, environmental stimuli, such as familiarity with the brand, the physical aspect of the product, among others, and non-environmental stimuli such as quality of service, product quality, among others. The contexts of studies of consumer emotions are presented. Finally, the authors also identify the studies undertaken in emerging economies.
Re-Thinking Evaluation in the Era of Neuroscience
Authors: Braescu Adriana V.
Published: February 2020

The main goal of any form of life is survival, by any means. All the processes happening in any life form obey this only rule of survival. Humans are the most sophisticated – not necessarily in the good sense of the word – in making this survival as complicated as possible. Authors developed intricate systems of evaluation, quotients – of intelligence, of emotion, of consciousness, etc. – and tried to fix in little boxes, like a skilled worker that deals with any machinery – each component of life, without even understanding what life is. It is a time when evaluation has to be reconsidered - in the context of a failed world.
Utilization of Plant Biomass for the Production of Renewable and Sustainable Biofuels With Zero Carbon Emission
Authors: Singh Sandip Kumar
Published: February 2020

Biofuels for use of transport and industrial purposes have been synthesised on a substantial scale since 1970s, using a set of technologies. Today, biofuels are widely available using sugar, grains, starch-based bioethanol, and oil seeds-based biodiesel. For enhancing the anticipations of product portfolio of plant biomass-to-biofuels formation, it is vital to develop effective conversion technologies for upgradation of abundantly available lignocellulosic biomass resources into value-added co-products particularly biofuels and chemicals. In this chapter, brief synthesis processes and utilization of synthesised biofuels such as methanol, ethanol, butanol, gasoline, diesel, and jet fuel have been outlined for their use in transport sectors either as a neat or blended with gasoline. Biofuels' physico-chemical properties, performances, gas emissions, pros, and cons of various synthesised biofuels' neat and blend are compared with non-renewable fuels. Thenceforth, discussion gradually focuses towards the zero-carbon emission upon the utilization of biofuels derived from plant biomass.
Emission Aspects of Biomass-Based Advanced Second Generation Bio-Fuels in IC Engines
Authors: Sakthivel R. , T. Mohanraj , Marshal S. Joseph John , P. Baranitharan , A. Tamilvanan , K. Gomathi
Published: February 2020

Rapid industrialization and growth in population in urban regions augment the pollution levels from transportation sectors, especially from diesel fleets. A wide array of research activities were carried out to satisfy the energy needs as well as reduce the emission levels, which poses a big challenge to the research community. In this situation, biomass-derived fuels provide a ray of hope to the research community to address the emission problem by adapting closed carbon cycle at low cost. This chapter gives an overview to the readers about the present energy scenario, biomass-based fuel, upgradation techniques for biomass fuel, and engine adaptability of biomass-based fuels. This chapter provides a clear glimpse of biomass energy, one of the potential energy resources in the near future.
Influence of Joint Configuration on Mechanical Properties of Laser Weld-Brazed Aluminum to Steel Joint
Authors: Chary D. Narsimha , Shariff S.M. , Pal Snehanshu , Padmanabham G. , Basu Anindya
Published: February 2020

In the present work, laser weld-brazing experiments were performed to produce aluminum to galvanized steel joints in lap and flange configuration. Tests were carried out using Al-12 % Si eutectic filler wire for joining of AA6082 -T6 with galvanized steel with varying laser power and keeping other parameters (wire feed and laser scan speed) constant. Microstructural characteristics of the laser brazed joints, studied by SEM, revealed cast structure in the brazed zone. Intermetallic formed at the steel interface was non-uniform. From the hardness results, it was noted that the brazed region exhibits lower hardness compared to the base material. The wetting length was improved with increasing filler wire rate, which in turn improved the strength of the brazed joint in both the configuration (lap and flange). At 4 kW laser power, flange configuration sample has failed in AA6082 whereas, in case lap joint, failed in the heat affected zone of AA6082.
Effect of Bath Concentration during Electrophoretic Deposition on the Interfacial Behaviour of Hybrid CFRP Composites
Authors: Yandrapu Sagar , Gangineni Pavan Kumar , De Soubhik , Ray Bankim Chandra , Prusty Rajesh Kumar
Published: February 2020

Carbon fibre reinforced polymer (CFRP) composites a perfect structural material due to their outstanding malleable strength, great rigidity, light mass and pronounced thermal resistance. But their inferior out-of-plane properties which are controlled by the matrix–fibre interface restrict the use of CFRP composites in critical applications. Amalgamation of nanofiller in the CFRP composites has found to improve the matrix-fibre interface and there by out-of-plane response. Though matrix modification has contributed to the improvement of interface, fibre modification has a scope for higher levels of nanofiller incorporation and proper fibre nanofiller adhesion. Out of several methods available for fibre modification electrophoretic deposition (EPD) is an eye-catching method for monitoring as well for nanofiller deposition. In recent ages, Graphene has grabbed wonderful consideration Among the graphene based functionalised nanofillers Carboxyl functionalized Graphene (G-COOH) modified CFRP composites have shown better ILSS properties. This research primarily aims to fabricate a CFRP composite using G-COOH modified carbon fibres with varying nanofiller concentrations of 0.5g/ltr, 1g/ltr and 1.5g/ltr in the EPD bath and its impact on the mechanical properties of the FRP composites. The laminates thus obtained were subjected to short beam shear test for the determination of inter laminar shear strength (ILSS). Fractography of the tested samples to observe various failure modes has been carried out by using scanning electron microscope (SEM).
An Assessment of Mechanical Performance of CNF Modified Glass Fiber/Epoxy Composites under Elevated Temperatures
Authors: Rathore Dinesh Kumar , Prusty Rajesh Kumar , Ray Bankim Chandra
Published: February 2020

The objective of this research is to evaluate the temperature dependent strengthening mechanism of 0.5 wt.% carbon nanofiber reinforced glass fiber/epoxy (CNF-GE) as a function of environmental temperature. Flexural response of the CNF-GE composite has been studied at 30°C, 70°C and 110°C temperatures and compared over control glass fiber/epoxy (GE) composite. When flexural test was conducted at room temperature, CNF-GE composite exhibited about 29% improvement in strength, over control GE composite. With increase in environmental temperature, the extent of strength enhancement continued to decrease and at 110°C, the strength of the CNF-GE composite was found to be about 12% lower than control GE composite. Visco-elastic properties of CNF-GE and control GE composites have also been studied in the temperature range of 40 to 200°C.
Designing Novel Multiferroic Perovskite Oxide for Prospective Photovoltaic Applications
Authors: Swarnakar Palash , Besra L.D. , Chatterjee Sriparna , Mukherjee Somdatta , Roy Amritendu
Published: February 2020

Multiferroics, with two or more coexisting ferroic orders (ferroelectric, ferro (antiferro)-magnetic) in a single phase, display promising photovoltaic characteristics which can be utilised in solar energy harvesting. However, the efficacy is seriously challenged due to their wide band gap, far from the ideal value of ~1.52 eV for photovoltaic applications, resulting in overall unimpressive performance. In the present work, an approach towards imparting multiferroism in an otherwise non-ferroic system was adopted through strain engineering. Bulk SrMnO3 (SMO) is antiferromagnetic-paraelectric. However, our previous first-principles studies predicted high-pressure phase transformation from bulk non-polar phase to a tetragonal polar phase. In light of the above, SMO was synthesised hydrothermally at 200°C for 96 h using water-soluble nitrate salts of strontium and manganese. FESEM study reveals the formation of hexagonal bipyramid shaped SMO crystals with elongated 1-D features. Powder x-ray diffraction studies and subsequent Rietveld refinement confirm the presence of hexagonal (P63/mmc) as well as tetragonal (P4mm) phases. Energy dispersive x-ray analysis (EDAX) confirms Sr/Mn ≈ 1, the stoichiometric ratio. UV-VIS spectroscopy was utilised to estimate the optical bandgap of the as-grown sample which was found to be in the range of 1.4-1.5 eV. Temperature-dependent magnetisation plot indicates the magnetic transition temperature, ~275K.
The Dispersion of Lead in Hypoeutectic Aluminium-Silicon Alloys by Spray Forming Process and their Characterization
Authors: Kumar Sandeep , Tomar Aruna , Singh Devendra
Published: February 2020

The present paper describes the Lead dispersion in hypoeutectic Aluminium-Silicon alloys and their microstructural characteristics. The homogeneous dispersion of Lead (Pb) in Aluminium-Silicon alloys (Al-6Si+Pb (=0, 10, 15, 20, 25)) were fabricated by using of spray forming technique (also known as spray casting or spray deposition) in the form of near-net shape disc. The microstructural characterization has been done for different location of spray formed disc by using optical microscopy (OM), Scanning electron microscopy (SEM) and X-Ray Diffraction (XRD) respectively. The results of the optical image were exhibited the equiaxed and globular grain morphology of primary Aluminium with the homogeneous dispersion of extremely fine and malleable particles of Lead and spherical particles of silicon in α–Aluminium matrix. The dispersed Lead has seen clearly in the SEM images of spray formed Aluminium-Silicon alloys and result of XRD pattern confirmed the phases of Aluminium-Silicon and Lead. The grain size of Aluminium has been analyzed by intercept line method. The lattice parameter and lattice strain have been calculated with the help of the XRD pattern to determine the effect of Lead dispersion on Al-Si alloy.
The Effect of Bond Phase Additive and Sintering Temperature on the Properties of Mullite Bonded Porous SiC Ceramics
Authors: Das Dulal , Kayal Nijhuma
Published: February 2020

Currently, porous SiC ceramics have been a focus of interesting research in the field of porous materials due to their excellent structural properties, high strength, high hardness, and superb mechanical and chemical stabilities even at high temperatures and hostile atmospheres. Porous SiC ceramics have been considered as suitable candidate materials for catalyst supports [1-2], hot gas or molten metal filters [3], high temperature membrane reactors [4], thermal insulating materials [5], gas sensors [6] etc. Porous SiC ceramics are fabricated by various methods including partial sintering [7], carbothermal reduction [8-9], replication or pyrolysis of polymeric sponge [10-12], reaction bonding [13] etc. In all these methods SiC needs to be sintered which requires a very high temperature due to the strong covalent nature of the Si-C bond, selective sintering additives, expensive atmosphere, costly and delicate instrumentation. Processing of porous SiC ceramics at low temperature using a simple technique thus becomes necessary. Bonding of SiC can be done at low temperatures by use of different oxide and non-oxide secondary phases. They include silica, mullite, cordierite, silicon nitride, etc. Various sintering additives are used for the formation of variety of secondary oxide bond phases for formations for porous SiC [14-19] Choice of mullite as a bond for SiC has many advantages. Mullite possesses a high melting point (Tm= 1850°C) and a low oxygen diffusion coefficient (5.6 x 10-14 m2/sec at 50°C). It has a matching thermal expansion coefficient with SiC (CTEmullite= 5.3 ×10-6/K; CTESiC = 4.7 ×10-6/K at RT-1000 °C) and a high strength that can be retained up to a very high temperature. Different sources of aluminum, such as Al2O3, Al, AlN, and Al (OH)3 powders were used for the formation of mullite bonded porous SiC ceramics (MBSC) [20-21]. However, the mullitization temperature of 1550o C is still necessary. In this work, mullite bonded porous SiC ceramics were fabricated by an in situ reaction-bonding process; the mixture of clay and CaCO3 were chosen as sintering additives to lower the mullitization reaction between Al2O3 and oxidation-derived SiO2. The effect amount of alumina, sintering temperature and other sintering aids on material property such as porosity/pore size distribution mechanical and micro structural properties of porous oxide bonded SiC ceramics were studied.
Microstructural and Joint Analysis of Ultrasonic Welded Aluminum to Cupro-Nickel Sheets for Lithium-Ion Battery Packs
Authors: Das Soumyajit , Satpathy Mantra Prasad , Routara Bharat Chandra , Sahoo Susanta Kumar
Published: February 2020

Energy crisis poses a major challenge in the modern industrial scenario. A critical aspect of the shop floor work includes the welding of dissimilar metal sheets which require the right amount of energy. In order to tackle these challenges, a conservative and energy efficient method are necessary. Recently, automotive industries have been widely adopted the ultrasonic metal welding process for assembling lithium-ion battery packs and its modules. The joining of these dissimilar metals using any other conventional welding process is extremely challenging due to varying physical, chemical, thermal properties, the formation of the heat affected zone and lesser bond strength. However, ultrasonic metal welding yields better quality welds under the influence of optimal parametric conditions. In this research, the weld quality of two dissimilar materials, namely, aluminum (AA1060) with cupronickel (C71500) sheets investigated at different welding time, vibration amplitudes and welding pressures with a fixed ultrasonic frequency of 20 kHz. Experimental results show the tensile shear strength of the weld is maximum at the highest vibration amplitude with a moderate amount of weld pressure and weld time. Additionally, the joint quality and its associated microstructure at the weld region are analyzed by scanning electron microscopy (SEM) to reveal the bond strength with the interlocking feature.
DE PABLO WHRIGHT (ED.): PERIFERIAS SAGRADAS DE LA MODERNIDAD ARGENTINA.
Authors: De la Torre Renée
Published: February 2020

RESEÑA DE LIBRO
Understanding the Athletic Trainer's Role in the Return-to-Learn Process at National Collegiate Athletic Association Division II and III Institutions
Authors: Runyon Lacey M. , Welch Bacon Cailee E. , Neil Elizabeth R. , Eberman Lindsey E.
Published: February 2020

Context

Postconcussion, student-athletes should return to the classroom using a gradual, stepwise process to ensure that symptoms are not exacerbated by cognitive activities. The National Collegiate Athletic Association (NCAA) has mandated that its affiliated institutions develop return-to-learn (RTL) policies to support the return to the classroom.

Objective

To investigate athletic trainers' (ATs') perceptions of their role in the RTL policy development and implementation at NCAA Division II and III institutions.

Design

Qualitative study.

Setting

Individual phone interviews.

Patients or Other Participants

Fifteen ATs (age = 40 ± 11 years, clinical practice experience = 16 ± 9 years, employment term = 9 ± 9 years) representing NCAA Division II (n = 6) or III (n = 9) institutions.

Data Collection and Analysis

Interviews were transcribed verbatim and checked for accuracy by the principal investigator. A 2-member data-analysis team independently coded a portion of the transcripts and then met to discuss the codebook. The codebook was applied to the remaining transcripts, confirmed, and externally reviewed.

Results

Five themes emerged: (1) approach, (2) collaborative practice, (3) patient advocacy, (4) institutional autonomy, and (5) barriers. Policies must allow for an individualized, evidence-based approach through facilitated, active communication among members of the RTL team and the student-athlete. Collaborative practice was described as key to successful policy implementation and should include interprofessional collaboration beyond health care providers (eg, educating academicians about the purpose of RTL). The RTL process was triggered by a specific member of the RTL team, usually a medical doctor or the head AT. Participants noted that the purpose of the RTL policy was to advocate for the student-athlete's successful postconcussion outcomes.

Conclusions

For the development and implementation of a successful RTL policy, strong communication and interprofessional practice must extend beyond health care professionals. Members of the health care team must establish a network with academic partners to develop a policy that is appropriate for the institution's available resources and the needs of its student-athletes.
Biometric based Multi-Authority Inner Product Encryption for Electronic Health Record
Authors: Exceline C. Eben , Norman Jasmine
Published: February 2020

INTRODUCTION: Attribute-based encryption enhances the security of electronic health records outsourced to the cloud. At the same time, single authority attribute based encryption leads to user privacy breech and attribute management complexity. Multi authority attribute-based encryption enhances user privacy and attribute management, but lacks privacy and integrity of data. Therefore, biometric-based multi-authority inner product encryption is proposed to improve data integrity, data privacy, and user privacy.OBJECTIVES: The proposed scheme aims to enhance data integrity, data privacy, and user privacy in cloud-based Electronic Health Record.METHODS: An exhaustive literature review has been made related to securing electronic health record outsourced to the cloud and found that data integrity is lacking in existing schemes. So an efficient encryption scheme has been proposed which adopts elliptic curve cryptography to enhance data integrity. The security analysis and computational complexity of the proposed scheme is done and compared with existing schemes.RESULTS: The proposed scheme guarantees data integrity and privacy of the sensitive information stored in the electronic health records. The scheme also satisfied the security requirements user privacy, fine-grained access control, and scalability needed for electronic health record outsourced to the cloud. The computational complexity of the proposed scheme is compared with the existing schemes. The result shows that user access rejection complexity and key generation complexity are comparatively low.CONCLUSION: Biometric, as a global identifier of the user, could improve data integrity for the electronic health records outsourced to the cloud. Multi-authority Inner Product Encryption hides the access structure, along with the data, could improve data privacy and user privacy. Employing NOT gate in the access structure reduces user access rejection complexity.
On the Hadamard product of degenerate subvarieties
Authors: Calussi Gabriele , Carlini Enrico , Fatabbi Giuliana , Lorenzini Anna
Published: February 2020

We consider generic degenerate subvarieties

X_i \subset \mathbb P^n

. We determine an integer

N

, depending on the varieties, and for

n geq N

we compute dimension and degree formulas for the Hadamard product of the varieties

X_i

. Moreover, if the varieties

X_i

are smooth, their Hadamard product is smooth too. For

n < N

, if the

X_i

are generically

d_i

-parameterized, the dimension and degree formulas still hold. However, the Hadamard product can be singular and we give a lower bound for the dimension of the singular locus.
Conceptual Groundwater Remedial Alternatives at Coal Combustion Residuals Sites
Authors: Goldemund Herwig , Ahrens Jeffrey M.
Published: February 2020

Groundwater below many basins that have been used to store coal combustion residuals (CCRs) may have concentrations of certain inorganic constituents in excess of applicable regulatory standards. Given that many inorganic CCR constituents are

also naturally occurring in the aquifer matrix, their detection may not always be indicative of a release from the CCR unit.

Inorganics may be present at elevated levels in groundwater due to natural or background conditions, or due to changes

to the aquifer geochemistry resulting from the presence of the CCR basin, which then mobilizes these naturally occurring

constituents beneath the CCR unit. Care must be taken to identify the source(s) and the release mechanism(s) of potential CCRrelated impacts. If a link between a CCR unit and an inorganic groundwater exceedance has been established, stakeholders

may be faced with the need to evaluate groundwater remedial alternatives to address these impacts. This paper conceptually discusses potentially applicable remedial approaches, including (i) monitored natural attenuation, (ii) hydraulic control using

ex situ and in situ methods, (iii) permeable reactive barriers, (iv) slurry walls, and (v) oxidation-reduction–altering approaches.

Additionally, this article explores potential water reuse options available at many power generating stations.

© 2019 The University of Kentucky Center for Applied Energy Research and the American Coal Ash Association

All rights reserved.
Islam, Faith, and Fashion
Authors: Crăciun Magdalena
Published: February 2020

The subject of religion and dress in Turkey has been debated at great length both in academia and the media. Through in-depth ethnographic research into the Turkish fashion market and the work of a category of newcomers, namely headscarf-wearing fashion professionals, Islam, Faith, and Fashion examines entrepreneurship in this market and the aesthetic desirability, religious suitability, and ethical credibility of fashionable Islamic dress.

What makes a fashionable outfit Islamically appropriate? What makes an Islamically appropriate outfit fashionable? What are the conditions, challenges and constraints an entrepreneur faces in this market, and how do they market their products? Is the presumed oxymoronic nature of Islamic fashion a challenge or a burden? Through case studies and ethnographic portraits, Craciun questions the commercialization of Islamic dress and tackles the delicate and often incompatible relationship between clothing worn in recognition of religious belief and clothing worn purely because it is fashionable.

This timely analysis of fashion, religion, ethics, and aesthetics presents dress as a disputed and a contested locus of modernity. Islam, Faith, and Fashion will be essential reading for students of fashion, anthropology, and material and visual culture.
Fashionable Childhood
Authors: Vänskä Annamari
Published: February 2020

Fashionable Childhood is the first book to critically examine representations of children and childhood through fashion media. Focussing on themes such as innocence, sexuality, class, and gender, this book provides a detailed and fascinating overview of the topic over the last 40 years.

With case studies of advertising campaigns from international fashion brands such as Calvin Klein, Dior, and Ralph Lauren and in-depth research into Italy’s special edition of Vogue dedicated to childrenswear, Vogue Bambini, Fashionable Childhood examines the ways children’s fashion is presented globally.

With the market for children’s fashion witnessing rapid growth in recent years, this exciting book will be of particular interest and value to students of fashion marketing, promotion, journalism, history, and theory.
Mass balance, grade, and adjustment timescales in bedrock channels
Authors: Turowski Jens Martin
Published: February 2020

Abstract. Rivers are dynamical systems that are thought to evolve towards a steady-state configuration. Then, geomorphic parameters, such as channel width and
slope, are constant over time. In the mathematical description of the
system, the steady state corresponds to a fixed point in the dynamic
equations in which all time derivatives are equal to zero. In alluvial
rivers, steady state is characterized by grade. This can be expressed as a
so-called order principle: an alluvial river evolves to achieve a state in
which sediment transport is constant along the river channel and is equal
to transport capacity everywhere. In bedrock rivers, steady state is thought to be achieved with a balance between channel incision and uplift. The corresponding order principle is the following: a bedrock river evolves to achieve a
vertical bedrock incision rate that is equal to the uplift rate or base-level lowering rate. In the present work, considerations of process physics and of the mass balance of a bedrock channel are used to argue that bedrock rivers evolve to achieve both grade and a balance between channel incision and uplift. As such, bedrock channels are governed by two order principles. As a consequence, the recognition of a steady state with respect to one of them does not necessarily imply an overall steady state. For further discussion of the bedrock channel evolution towards a steady state, expressions for adjustment timescales are sought. For this, a mechanistic model for lateral erosion of bedrock channels is developed, which allows one to obtain analytical solutions for the adjustment timescales for the morphological variables of channel width, channel bed slope, and alluvial bed cover. The adjustment timescale to achieve steady cover is of the order of minutes to days, while the adjustment timescales for width and slope are of the order of thousands of years. Thus, cover is adjusted quickly in response to a change in boundary conditions to achieve a graded state. The resulting change in vertical and lateral incision rates triggers a slow adjustment of width and slope, which in turn affects bed cover. As a result of these feedbacks, it can be expected that a bedrock channel is close to a graded state most of the time, even when it is transiently adjusting its bedrock channel morphology.
Dual state/rainfall correction via soil moisture assimilation for improved streamflow simulation: evaluation of a large-scale implementation with Soil Moisture Active Passive (SMAP) satellite data
Authors: Mao Yixin , Crow Wade T. , Nijssen Bart
Published: February 2020

Abstract. Soil moisture (SM) measurements contain information about both pre-storm
hydrologic states and within-storm rainfall estimates, both of which are
required inputs for event-based streamflow simulations. In this study, an
existing dual state/rainfall correction system is extended and implemented
in the 605 000 km2 Arkansas–Red River basin with a semi-distributed
land surface model. The Soil Moisture Active Passive (SMAP) satellite
surface SM retrievals are assimilated to simultaneously correct antecedent SM states in the model and rainfall estimates from the Global Precipitation Measurement (GPM) mission. While the GPM rainfall is corrected slightly to moderately, especially for larger events, the correction is smaller than that reported in past studies due primarily to the improved baseline quality of the new GPM satellite product. In addition, rainfall correction is poorer in regions with dense biomass due to lower SMAP quality. Nevertheless, SMAP-based dual state/rainfall correction is shown to generally improve streamflow estimates, as shown by comparisons with streamflow observations across eight Arkansas–Red River sub-basins. However, more substantial streamflow correction is limited by significant systematic errors present in model-based streamflow estimates that are uncorrectable via standard data assimilation techniques aimed solely at zero-mean random errors. These findings suggest that more substantial streamflow correction will likely require better quality SM observations as well as future research efforts aimed at reducing systematic errors in hydrologic systems.