273 research outputs found

    Investigation of Process Parameters to Fabricate Refractory Medium-Entropy Alloy by Selective Laser Melting Process

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    This thesis proposal investigates the synthesis of TiWMo refractory medium entropy alloy (RMEA) by selective laser melting process from elemental powder. Steel, titanium and tungsten substrates were used to study the impact on the formation of TiWMo RMEA. Different process parameters were applied to investigate the effects on melting, diffusion and formation of RMEA. The microstructure of TiWMo and elemental distribution were observed by scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS). SEM analysis revealed that with higher energy density the pores and microcracks were improved. EDS data validated the composition is homogenized and stable after few layers of deposition. Single phase BCC solid solution was predicted based on the theoretical calculation. The maximum microhardness 644 HV achieved from the highest 350 J/mm3 energy density

    The impact of climate change on the cost of bank loans

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    We find that firms in location with higher exposure to climate risk pay significantly higher spreads on their bank loans. This result is robust to different measures of climate risk. Exploiting the economic link between a firm and its customers, we find that the exposure of a firm’s customers to climate risk adversely affects that firm’s cost of borrowing. In the cross-section, we find that the effect is mainly driven by long-term loans of poorly rated firms that are highly exposed to climate risk. Overall, our evidence suggests a slow increase in lenders’ attention to climate risk and that lenders have yet to fully understand and price all dimensions of this risk

    How to improve TTS systems for emotional expressivity

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    Several experiments have been carried out that revealed weaknesses of the current Text-To-Speech (TTS) systems in their emotional expressivity. Although some TTS systems allow XML-based representations of prosodic and/or phonetic variables, few publications considered, as a pre-processing stage, the use of intelligent text processing to detect affective information that can be used to tailor the parameters needed for emotional expressivity. This paper describes a technique for an automatic prosodic parameterization based on affective clues. This technique recognizes the affective information conveyed in a text and, accordingly to its emotional connotation, assigns appropriate pitch accents and other prosodic parameters by XML-tagging. This pre-processing assists the TTS system to generate synthesized speech that contains emotional clues. The experimental results are encouraging and suggest the possibility of suitable emotional expressivity in speech synthesis

    Catalyst free, base free microwave irradiated synthesis of aryl nitrites from potassium aryltrifluoroborates and bismuth nitrate

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    A mixture of bismuth nitrate pentahydrate and potassium aryltrifluoroborate in toluene under microwave heating at 120°C for 20min provides an interesting and mild reaction protocol for the synthesis of aryl nitrite. The conversion to aryl nitrites from aryltrifluoroborates without transition metal catalyst and base in high yields is remarkable

    Antonio Gramsci’s Political Thought: An Analysis

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    This essay intended to demonstrate the greatest Neo-Marxist political theorist Antonio Gramsci’s political thought. In the very beginning it discussed about his primary socialization because of every man’s thinking depends on his early life and his surrounding environment and then tried to focuses on his political thought. At first I tried to concentrate on his idea of hegemony. According to him, hegemony is a cultural process by which one class dominates the other. Thus the dominators keep on practicing power and the ruled obey them. Simply it means to put something into the ear of the commoners and make them believe in it. After discussing about hegemony it delt with his concept of ‘Intellectual class’, ‘education’, ‘philosophy and history’ and lastly ‘philosopher’. All of these cocepts he gave for the sake of subaltern(proletariat) class and their freedom from bourgeois suppression. Keywords: Hegemony, Bourgeois, Proletariat, Subaltern, Praxis, Dominance, Political Society, Civil Society, Intellectual, Education, Philosophy, History and Philosophe

    Financial Analysts\u27 Forecast Accuracy : Before and After the Introduction of AIFRS

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    We examine whether financial analysts’ forecast accuracy differs between the pre- and post- adoption of Australian Equivalents to the International Financial Reporting Standards (AIFRS). We find that forecast accuracy has improved after Australia adopted AIFRS. As a secondary objective, this paper also investigates the role of financial analysts in reducing information asymmetry in today’s Australian capital market. We find weak evidence that more analysts following a stock do not help to improve forecast accuracy by bringing more firm-specific information to the market

    Business Strategy and Cost of Bank Loans

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    Following Miles and Snow’s Business Strategy (BS) topology, we find that banks impose relatively higher loan spreads for the firms that follow an Innovation-Oriented Business Strategy (IOBS). We further document that IOBS is positively associated with corporate risk measures such as variances in equity returns and returns on assets. Overall, our findings suggest that banks charge a higher cost of debt in anticipation of borrowers’ payback riskiness from an IOBS

    Job Satisfaction of the Employees in the Mobile Phone Corporates in Bangladesh: A Case Study

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    Optimizing employee satisfaction is a key to the success of any business that relies on a variety of organizational and psycho-economic factors. This study was conducted to identify that sort of key factors, which are responsible to influence on the overall job satisfaction in the growing mobile phone corporate in Bangladesh. The phone corporates, which are included here in the study, are Grameen Phone (GP), Bangla Link and Aktel. The factors included in the investigation as independent variables are Compensation Package, Supervision, Career Growth, Training and Development, Working atmosphere, Company Loyalty and Performance Appraisal. The result indicates that training and performance appraisal, work atmosphere, compensation package, supervision, and company loyalty are the key factors that impact on employees’ job satisfaction in these corporations. The study also finds that the employees of these three corporations possessed above of the moderate level and positive attitude towards job satisfaction, which could be nudged up to excellent status of employee satisfaction if the management takes those identified factors with a little more rigorous weight into their considerations and acts further accordingly.

    e-Learning for expanding distance education in tertiary level in Bangladesh: Problems and progress

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    E-learning has broadly become an important enabler to promote distance education (DE) and lifelong learning in most of the developed countries, but in Bangladesh it is still a new successful progressive system for the learning communities. Distance education is thought to be introduced as an effective way of educating people of all sections in Bangladesh. Bangladesh Open University (BOU), the only distance education provider in Bangladesh, has been trying to adopt the use of various e-learning materials for its distance delivery. This paper has tried to describe the current progress of quality e-learning for expanding distance education, identifying the major problems of e-learning in distance education at tertiary level in Bangladesh, with special reference to BOU, and finally to put forward some valuable recommendations for solving the problems. The study is based on both primary and secondary sources. It is observed from the research that e-learning is going to ensure its bright prospect as an alternative mode of education at the tertiary level in Bangladesh. There are several problems that are identified and can be mitigated and solved through Information and Communication Technology (ICT) development, greater acceptance by learners, and much research in this sector in Bangladesh to face globalization. DOI: 10.18870/hlrc.v3i4.17
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