Miracle-dz/UniFAR-FTUs huggingface dataset:
Study of temperature on performance of c-Si homo junction and a-Si/ c-Si hetero junction solar cells

Silicon hetero junction (SHJ) solar cells, employing a surface junction, combine beneficial effects of c-Si and a-Si solar cell technologies. In this work, we have successfully developed large area (137 Cm 2 ), silicon hetero junction (SHJ) solar cells of efficiencies in the range of 16.0 to 16.5% and investigated variation with temperature of the electrical parameters of these as well as normal, diffused junction, c-Si homo junction solar cells. We have compared the temperature coefficients of parameters such as I sc , V oc , and P max and have compared them for both types of devices as these would have direct impact on performance, in field, of modules made out of these cells. We found out that c-Si homo junction cells are more sensitive to temperature changes as compared to SHJ solar cells. Also the presence of intrinsic amorphous silicon layer between p type a-Si and n type c-Si does not affect the power temperature coefficients; however they do affect the performance of the cells.
INTERPRETATION OF INTERNATIONAL PARALLEL TEST ON THE MEASUREMENT OF Gmax USING BENDER ELEMENTS

ABSTRACT This report summarizes the results of international parallel test on the measurement of the elastic shear modulus at very small strains, Gmax, using bender elements which was carried out from 2003 to 2005 by technical committee, TC29 (Stress-strain and Strength Testing of Geomaterials) of the International Society of Soil Mechanics and Geotechnical Engineering. The purpose was to evaluate the consistency of the bender element test results obtained by applying the exactly similar test material as well as the test method besides identifying the various existing hardware and software being used in this test. It was decided that the domestic TC29 group of Japanese Geotechnical Society (TC29-JGS) was expected to lead this international co-operation. By 2005, reports of the test results were obtained from 23 institutions from 11 countries. This report has been prepared by TC29-JGS taking a leading role from the beginning. A standard test method is proposed here in order to obtain more accurate data from the bender element test by examining various test methods adopted at different institutions worldwide and the effects of various factors on the test results.
The p-q theory in three-phase systems under non-sinusoidal conditions

The conventional theory of active and reactive power in single-phase or three-phase systems is based on an average value concept, thus making it impossible to define instantaneous active and reactive power in a real sense. On the basis of an instantaneous value concept, the authors have already proposed a new definition of instantaneous active and reactive power in three-phase circuits for arbitrary voltage and current waveforms without any restriction. This is called the instantaneous reactive power theory or the p-q theory, which is considered a basic theory of active power line conditioners such as reactive power compensators and active power filters for harmonic compensation
The Influence of Work Environment on Employee Retention: Empirical Evidence from Banking Institutions in Dar Es Salaam, Tanzania

Employee retention has become a major concern in many organizations in recent years (Manogharan, et al., 2018). Mir and Mufeed (2016) contend that today’s business environment is very competitive thus making skilled and experienced employees important to organizations. Thirupathy and Dhayalan (2016) argued that skilled employees are the major differentiating factor for most organizations in today’s competitive business environment.Samuel and Chipunza (2009) indicated that retention of skilled employees is important for sustaining competition and ensuring effective and efficient service delivery in organizations. On the other hand,Ibidunni, et al. (2016) argued that, employee retention helps in improving organizational performance. Hence, employee retention is regarded as crucial for organizational performance as well as competitiveness in today’s world of competition in business.
ORDER IDENTIFICATION OF THE DYNAMIC HEAT PRODUCTION RESPONSE OF BROILER CHICKENS TO STEP CHANGES IN TEMPERATURE AND LIGHT INTENSITY

In this research, the aim was to identify the order of the dynamic response of heat production of broiler chickens to steps in air temperature and light intensity. A total of 60 step experiments were performed with air temperature, and 181 step experiments were performed with light intensity. Each step experiment was modeled using a transfer function model. For each experiment, the order of the dynamic heat production response was determined using the Young identification criterion (YIC). Dynamic response of heat production to steps in temperature showed a first–order response in 43 of the 60 experiments (i.e., 72%) and a higher–order response in the other cases (28%). Dynamic response of heat production to steps in light intensity showed a first–order response in 130 of the 181 cases (72%) and a higher–order response in the remaining 51 steps (28%). Based on modeling accuracy in terms of R2, applying the higher–order models improved the accuracy only in a minority (2% to 5%) of the cases. As a conclusion, it can be stated that, in general, the dynamic response of heat production of broiler chickens to step changes in air temperature and light intensity can be modeled assuming first–order dynamics.
Risk of Pedestrian Collision Occurrence

This individual-level case control study analyzed the risk of occurrence of a pedestrian–motor vehicle collision at a given location on a state route in King County, Washington. With the full sample of collisions (1999-2004), binomial logit models estimated the odds of collision occurrence as related to the road and the neighborhood environments and adjusting for exposure. Separate models were run for SR-99, the principal transregional arterial with four-plus lanes (n = 826), and for all the other state routes (n = 1,602). The strongest significant correlates of the risk of collision occurrence were the presence of crosswalks with or without traffic signals, the facility's number of lanes, and the presence of nearby retail uses. Also positively significant were the number of traffic signals and the street-block size near the location and being located outside the city of Seattle. Exposure variables including road-level measures such as average daily traffic and posted speed and neighborhood-level measures such as the number of residential units and bus ridership were significant in at least one of the models. Employment density appeared to be an unreliable measure of exposure. Other pedestrian activity generators such as educational facilities were not significantly associated with the risk of collision occurrence. The strong significance of crosswalks, whether signalized or not, indicated that engineering approaches to safety should likely be complemented by education- and enforcement-based measures. Similarly, facilities in areas with concentrations of retail should become the targets of future safety programs.
Multiple Normal Loading-Unloading Cycles of a Spherical Contact Under Stick Contact Condition

The multiple normal loading-unloading process of an elastic-plastic sphere by a rigid flat is analyzed for stick contact condition and both kinematic and isotropic hardening models. The behavior of the global contact parameters as well as the stress field within the sphere tip is presented for several loading cycles. It was found that under stick contact condition secondary plastification occurs even after the second loading cycle and that the hardening model used has little effect on the loading-unloading process. The cyclic loading process gradually converges into elastic shakedown.Copyright © 2010 by ASME
Students as Producers: An ‘X’ Disciplinary Client-Based Approach to Collaborative Art, Design and Media Pedagogy

This article presents the findings of a cross-disciplinary project between BA (Hons) Interior Design, Creative Multimedia and Film and Media Studies at a large Metropolitan University in the North of England. The collaboration was part of Unit X, a faculty-wide credit-bearing initiative to enable better collaboration across art and design courses. The project explored cross-disciplinary approaches to problem-solving and generating designed outputs using a ‘vertical studio’ model. The outcomes for the students were to create a number of media/arts/design-based interventions, responding to real clients (festival organisers, local bar and cafe owners) and real client briefs. The constructivist approach to pedagogy allowed students the opportunity to develop their practice skills within communities of practice to help explore, develop, support and form their creative identities. The aim was to facilitate a supported environment to allow knowledge creation to take place through group tasks, reflection and the challenges of working and negotiating roles as professionals.
Safety management in production

The last 20 years have seen the development of broad agreement on the necessary functions to be fulfilled by a safety management system and how they relate to each other in a coherent whole. The article describes these functions and reviews subjects that still need study, notably organizational culture, conflict, management in nonbureaucratic organizations, safety auditing, and safety in the learning organization. It is organized under four headings: what we know, what we believe but have no proof of, what we may be mistaken about, and what we face as challenges and unresolved issues for the coming years. © 2003 Wiley Periodicals, Inc. Hum Factors Man 13: 185–201, 2003.
Welded Box Compression Members

An experimental and theoretical study is presented on the strength of welded box compression members of high strength steel. The member cross sections are composed of plates with relatively large width‐thickness ratios so that local plate buckling is supposed to occur before the attainment of the overall member buckling. A total of 25 members of various lengths, width‐thickness ratios and cross‐sectional shapes (square or rectangular box) were tested to failure under bending as well as under concentric or eccentric axial loading. In the theoretical study a computer program has been developed, based on the effective width concept, to trace up to collapse the load‐deformation characteristics of locally buckled beam‐columns. By comparing the experimental and theoretical results it has been found that the agreement is reasonably good in the columns with large width‐thickness ratios.
An engineering framework for dealing with change problems: theoretical underpinnings and initial evaluation

Organisational change problems are known to be ill-structured and complex. An open challenge remains: to be able to provide problem representations and systematic analysis techniques to address them. Extending a validated systematic general engineering methodology, the paper introduces and discusses the motivation, theoretical foundation and specific characteristics of a new framework, POE-Δ, which provides a systematic way to represent, structure and iteratively explore any change problem to unveil its context and to identify the organisational areas where intervention is needed. Properties inherited from the original engineering methodology include the tight integration of stakeholder communication and validation during the analysis activities and the management of problem solving risk (i.e., that we solve the wrong problem). The paper concludes with a report of initial findings from the application of the framework in a real-world case study in a large European engineering organisation that focuses on organisation-wide changes needed in response to changing legislation and regulation.
Enhanced planar wireless power transfer using strongly coupled magnetic resonance

A novel planar wireless power transfer (WPT) system using strongly coupled magnetic resonance is proposed. Additional layers of printed spiral coils (PSCs) are applied to the transmitter/receiver resonator of the 4-coil planar WPT system to improve the quality factor and transmission efficiency. In addition, by connecting multilayer transmitter/receiver resonators together using conductive shorting walls, the transmission efficiency is further improved. Five planar WPT systems using coplanar PSCs and printed loops have been investigated. The measured results show that the proposed design with two additional layers of resonators and shorting walls could improve the transmission efficiency from 77.27 to 84.38%.
Interference resistant modulation using transform domain processing

Digital mobile battlefield environments impose challenging obstacles to battle group communications and data management. As future communication capabilities cascade from tactical commanders to individual soldiers, spectral clutter and hostile jamming complicate the task of preserving data throughput. Frequency hop (FH) and direct sequence (DS) methodologies have inherent strengths that must be exploited to overcome communication obstacles. In this paper, we present a hybrid methodology that combines FH waveforms with pulse concealment and transform domain signal processing in order to overcome interference, hostile detection, and jamming. Rejection algorithms are demonstrated which significantly improve system performance in the presence of high-power partial-band jammers, co-site communication signals, and fading.
Logistics outsourcing, its motives and the level of logistics costs in manufacturing and trading companies operating in Finland

This article explores the various aspects of logistics outsourcing in companies operating in Finland. The aim is to identify the connection between outsourcing, its motives and logistics costs. The data comprise a survey sample of 299 manufacturing and trading firms. Descriptive statistical analyses, analysis of variance and factor analysis were applied. Transport activities are outsourced to a large extent. The majority of companies manage most other logistics operations in-house. The outsourcing of product customisation, inventory management and warehousing is expected to become more common in the future. Cost savings together with flexibility and customer service were found to be the major motives for outsourcing. A connection between logistics costs and logistics outsourcing was identified: companies with higher levels of outsourcing are experiencing lower levels of logistics costs compared to those with lower levels of outsourcing or none at all.
Effects of barrier perches and stocking density on the behavior, space use, and leg health of the domestic fowl (Gallus gallus domesticus)

Title of Thesis: EFFECTS OF BARRIER PERCHES AND STOCKING DENSITY ON THE BEHAVIOR, SPACE USE, AND LEG HEALTH OF THE DOMESTIC FOWL (GALLUS GALLUS DOMESTICUS) Beth Ventura, Master of Science, 2009 Thesis Directed By: Professor, Dr. Inmaculada Estevez, Department of Animal and Avian Sciences The objective of this study was to discern whether providing enrichment in the form of barrier perches across a range of densities might improve leg and foot health and promote behavioral expression and more even use of space in broilers. To investigate this, 2,088 day-old broiler chicks were randomly assigned to one of three barrier treatments at one of three densities. Effects on behavior, space use, foot and hock health, tibia fluctuating asymmetry, fear and production were subsequently assessed. Higher densities appeared to compromise broiler welfare, seen by increased tibia length asymmetry, poorer foot and hock health, suppression of activity, increased disturbances, and decreased use of space. Conversely, barrier perches – particularly simple barriers – appeared to improve footpad quality, promote increased perching and activity, decrease aggression and disturbances, and improve use of the central pen space, all without negatively impacting production traits. EFFECTS OF BARRIER PERCHES AND STOCKING DENSITY ON THE BEHAVIOR, SPACE USE, AND LEG HEALTH OF THE DOMESTIC FOWL (GALLUS GALLUS DOMESTICUS)
The Endurance Training Effects on Apoptosis in the Rat Hippocampus Following Transient Common Carotid Artery Occlusion

Introduction & Objective: Apoptosis, one of the most important mechanisms explaining stroke-induced functional deficit severity, might be reduced by physical rehabilitation. The purpose of this study is to assess effects of an 8-week endurance training both on apoptosis-related genes and proteins expression levels after a transient common carotid artery occlusion (tCCAO) in rats.Methods: Thirty Wistar male rats were randomly assigned into one of the 3 following groups: Control, tCCAO and tCCAO with endurance training (tCCAO+END). The tCCAO lasted 45 min. The endurance training was performed on treadmill over an 8-week period (5 days per week). BAX and BCL2 genes and proteins expression levels were used by qPCR, immunohistochemistry. Nissl staining was also carried out at the end of the training protocol.Results: The BAX expression increased following tCCAO but decreased when endurance training was performed (p<0.05). The BCL2 expression decreased following tCCAO and increased with training (p<0.05). In parallel, the cell death in the hippocampus was reduced when rats were trained. Conclusion: The endurance training can reduce the pro-apoptotic events after tCCAO suggesting a neuronal survival in the CA1 hippocampus. The link between apoptosis and functional recovery after training seems to be of clinical interest, and thus, should be more investigated.
Landslide susceptibility assessment and mapping using statistical and data mining models in Iran

This study applied to evaluate landslide susceptibility using four data mining models including, “Generalized Linear Model (GLM)”, “Maximum Entropy (ME)”, “Artificial Neural Network (ANN)”, and “Support Vector Machine (SVM)” in Cherikabad Watershed in Urmia City, Iran. In particular, Shannon entropy was used to assess the intercomparison of factors’ classes. Eleven factors including, elevation, slope angle, slope aspect, geological formation, annual mean rainfall, land use/ land cover, distance to the village, distance to faults, distance to roads, distance to streams, and NDVI used in the current study. Landslide inventory map was identified using Google Earth imagery, extensive field surveys, and scrutinizing archived data. The produced landslide susceptibility maps were evaluated by the AUROC index. The results of performance metrics revealed that the Shannon entropy with an AUROC of 0.879 proved highly reliable and so is the intercomparison analysis of factors’ classes derived from it. Additionally, the goodness-of-fit of the GLM, ME, ANN, and SVM models were 0.763, 0.740, 0.926, and 0.924, while their predictive powers were 0.751, 0.727, 0.917, and 0.935, respectively. Hence, the results indicated that the SVM model can be introduced as the superior model for the study area based on which the most critical factors affecting landslides were found to be elevation, annual mean rainfall, and distance to the village. The results of this work are of great use for land use planning in landslide-prone areas with similar geo-topological, geomorphological, and climatic conditions.
Al+ Implanted 4H-SiC: Improved Electrical Activation and Ohmic Contacts

The p-type doping of high purity semi-insulating 4H-SiC by Al+ ion implantation and a conventional thermal annealing of 1950 °C/5 min has been studied for implanted Al concentration in the range of 1 x1019 - 8 x 1020 cm-3 (0.36 μm implanted thickness). Sheet resistance in the range of 1.6 x 104 to 8.9 x102 Ω, corresponding to a resistivity in the range of 4.7 x 10-1 to 2.7 x 10-2 Ωcm for increasing implanted Al concentration have been obtained. Hall carrier density and mobility data in the temperature range of 140–600 K feature the transition from a valence band to an intra-band conduction for increasing implanted Al concentration. The specific contact resistance of Ti/Al contacts on the 5 x1019 cm-3 Al implanted specimen features a thermionic field effect conduction with a specific contact resistance in the 10-6 Ωcm2 decade.
Compressive behaviour of CFS strengthened concrete specimens with various cross-sectional shapes and laminations

The repairing technique of surface wrapping concrete structural members using fibre composite sheets has been widely used. Therefore, significant research efforts have concentrated on understanding the mechanism of concrete members wrapped with fibre composite sheets for lateral confinement. In order to apply the carbon fibre sheet (CFS) surface wrapping technique in retrofitting of aged concrete column structures, the effect of cross-sectional shape on concrete columns with CFS wrapping has been studied. In this research, compression tests have been performed on CFS reinforced concrete specimens with various cross-sectional shapes (i.e. square, octagonal, and circular) and lamination schemes (i.e. [0/0/0/0], [90/90/90/90], [0/45/−45/90], and [0/90/90/0]). The specimens were tested in order to understand the confinement effect of CFS from square to circular members. The test results showed that the strength and ductility of the specimens depend on the CFS fibre direction. Also, the specimens with octagona.
Employee Turnover Intention in Call Center (Punjab) Pakistan

Purpose The purpose of this research was to find out the reasons of employee turnover in call centers of Punjab Pakistan so that the companies could retain their trained work force. Also find out the reasons which are affecting on employee’s turnover intention. The intention of this research is to find out those elements behind the employees turnover intention of job. Design/methodology the target population of this research is Multan and Lahore (Punjab). For getting the response 100 quantities of questionnaire were distributed and with use of application SPSS-18, revile the result on correlation analysis. Research findings the findings of this research identified that that there is negative relationship between the dependent and independent variables. The finding and the recommendation of this research will help the manager to develop a deeper insight of research factor for reducing the employee’s turnover intention Originality/value for determining the employees turnover intention in call center that is original study for newly and existing reader knowledge and there is no any portion of research are copy form anywhere. Implications all the company top level manager/HR manager and marketers of the industry who want to decline the turnover intention can use this research results. Keywords : employee’s turnover, job satisfaction, salary, working condition
Nexus between population density and COVID-19 pandemic in the south Indian states: A geo-statistical approach

The unprecedented growth of the novel coronavirus (SARS-CoV-2) as a severe acute respiratory syndrome escalated to the 2019 coronavirus disease (COVID-19) pandemic. It has created an unanticipated global public health crisis. The virus is spreading rapidly in India which poses serious threat to 135 crore population. Population density poses some unforeseen challenges to control the COVID-19 contagion. In times of crisis, data is crucial to understand the spatial relationship between density and the infection. The article study the district wise transmissions of the novel coronavirus in five south Indian states until 6th June 2020 and its relationship with the respective population density. The five states are purposefully selected for better healthcare infrastructure vis-à-vis other states in India. We observed that corona virus spread depends on the spatial distribution of population density in three states especially in Tamil Nadu, Karnataka and Telangana. The results indicate that the long-term impacts of the COVID-19 crisis are likely to differ with demographic density. Policy initiatives aimed at reducing the health consequences of the COVID-19 pandemic should understand how vulnerabilities cluster together across districts.