62 research outputs found

    New characterizations of Von Neumann regular rings and a conjecture of Shamsuddin

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    A theorem of Utumi states that if R is a right self-injective ring such that every maximal ideal has nonzero annihilator, then R modulo the Jacobson radical J is a finite product of simple rings and is a Von Neuman regular ring. We prove two theorems and a conjecture of Shamsuddin that characterize when R itself is a von Neumann ring, using a splitting theorem of the author on when the maximal regular ideal of a ring splits off

    New characterizations of Von Neumann regular rings and a conjecture of Shamsuddin

    No full text
    A theorem of Utumi states that if R is a right self-injective ring such that every maximal ideal has nonzero annihilator, then R modulo the Jacobson radical J is a finite product of simple rings and is a Von Neuman regular ring. We prove two theorems and a conjecture of Shamsuddin that characterize when R itself is a von Neumann ring, using a splitting theorem of the author on when the maximal regular ideal of a ring splits off

    The Effectiveness of Virtual R&D Teams in SMEs: Experiences of Malaysian SMEs

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    The number of small and medium enterprises (SMEs), especially those involved with research and development (R&D) programs and employed virtual teams to create the greatest competitive advantage from limited labor are increasing. Global and localized virtual R&D teams are believed to have a high potential for SMEs growth. Due to the fast growing complexity of the new product, coupled with new emerging opportunities of virtual teams, a collaborative approach is believed to be the future trend. This research explores the effectiveness of virtuality in SMEs virtual R&D teams. An online questionnaire emailed to Malaysian manufacturing SMEs and 74 usable questionnaires were received, representing a 20.8 percent return rate. To avoid the bias that may result from pre-suggested answer, a series of open-ended questions asked from expertise. This study based on analyzing an open-ended question; extract four main themes among expertise recommendations on the effectiveness of virtual teams for SMEs growth and performance. These are suitable for SMEs new product design manager to realize the key advantage and importance of virtual R&D teams in the process of NPD, which lead to increase the effectiveness of the new product's procedure.Virtual teams, New product development, Survey finding, Small and medium Enterprises.

    Les nationalistes indonésiens vus par un romancier malais : Shamsuddin Saleh

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    — Henri Chambert-Loir (EFEO, Bandung) menumpahkan per- hatiannya pada seorang tokoh sastra, yang hidup antara Perang Dunia pertama dan kedua dan tidak begitu dikenal, Syamsuddin Saleh, seorang penulis roman yang berasal dari Sumatra, se- karang hidup di Malaysia Barat. Banyak buku telah ditulisnya semuanya dalam tulisan Arab ; hanya beberapa saja yang masih ada dan sukar didapat sekarang. Karya-karyanya se- kaligus merupakan roman sosial dan detektif. Sukar ditentukan sekarang apakah penulis betul-betul berhaluan "kiri", karena kadang-kadang memihak dan kadang-kadang memukul golo- ngan tersebut.— Henri Chambert-Loir (EFEO, Bandung,) discusses a little- known figure from the literature written between the two wars, the novelist Syamsuddin Saleh, who was born in Sumatra and at present lives in retirement in West Malaysia. His numerous works — of which only a few rare copies survive — were all published in Arabic characters ; they were at the same time both social novels and detective stories, and it is difficult now to say whether the author was in fact on the side of the "reds" whom he introduces in his works, sometimes to regard them approvingly, sometimes to condemn them.— Henri Chambert-Loir (EFEO, Bandung) s'intéresse à une figure peu connue de la littérature d'entre les deux guerres, celle du romancier Syamsuddin Saleh, qui natif de Sumatra, vit à présent retiré en Malaysia occidentale. Ses oeuvres nombreuses — mais dont seuls quelques rares exemplaires subsistent à present — ont été exclusivement éditées en caractères arabes ; elles tiennent à la fois du roman social et du roman policier et il est aujourd'hui difficile de dire si leur auteur était réellement du côté des "rouges" qu'il met en scène, pour tantôt les approuver, tantôt les condamner.Chambert-Loir Henri. Les nationalistes indonésiens vus par un romancier malais : Shamsuddin Saleh. In: Archipel, volume 12, 1976. pp. 147-174

    Exploring genetic algorithm as an image synthesizer for cases with limited training samples

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    This research, presented at the Oklahoma State University Undergraduate Summer Student Research Expo, is the work of a visiting author from Bilkent University (Turkey).Research Experiences for Undergraduates in Computer ScienceComputer Scienc

    SHALISH an effective means of justice for disadvantaged in Bangladesh: a case study

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    This research is intended to improve the quality of Shalish system in Bangladesh by analyzing its functions and adopting recommendations and findings in the most benefitting manner. In this research report, descriptive methodology is used to bring out the rational and justification of the work. Further a literature review and analytical analysis of literature have been adopted for the completion of this report. For justifying the same primary data has been collected by the persons involved in the Shalish process and same was critically analyzed. Author\u27s personal experiences, being judges of formal Court, have also been used for the achievement of this research

    Translating a Metaphysical Fiction: A Case Study

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    Translation demands a deep understanding of two (or more) languages, time, space and culture. Drawing on his own experience in the translation of the metaphysical fiction in Malayalam titled as Maranaparyantham: Roohinte Nalvazhikal (The Afterlife: A Rooh’s Diary) written by Shamsuddin Mubarak, in to English, author of this article presents a case study. The paper explores the promises that the fiction has given in the process of translation because of its story being a fused content between the classical Islamic textual narrative and localized experience of the textual version. The study also lists numerous challenges in translating a localized version of universal experiences in a global language, English.&nbsp

    Synthesis and Characterization of CO-and H 2 S-Tolerant Electrocatalysts for PEM Fuel Cell

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    ABSTRACT The present state-of-art Proton Exchange Membrane Fuel Cell (PEMFC) technology is based on platinum (Pt) as a catalyst for both the fuel (anode) and air (cathode) electrodes. This catalyst is highly active but susceptible to poisoning by CO, which may be present in the H 2 -fuel used or may be introduced during the fuel processing. Presence of trace amount of CO and H 2 S in the H 2 -fuel poisons the anode irreversibly and decreases the performance of the PEMFCs. In an effort to reduce the Pt-loading and improve the PEMFC performance, we propose to synthesize a number of Pt-based binary, ternary, and quaternary electrocatalysts using Ru, Mo, Ir, Ni, and Co as a substitute for Pt. By fine-tuning the metal loadings and compositions of candidate electrocatalysts, we plan to minimize the cost and optimize the catalyst activity and performance in PEMFC. The feasibility of the novel electrocatalysts will be demonstrated in the proposed effort with gas phase CO and H 2 S concentrations typical of those found in reformed fuel gas with coal/natural gas/methanol feedstocks. During this reporting period we synthesized several tri-metallic electrocatalysts catalyst

    Synthesis and Characterization of CO-and H 2 S-Tolerant Electrocatalysts for PEM Fuel Cell

    No full text
    ABSTRACT The present state-of-art Proton Exchange Membrane Fuel Cell (PEMFC) technology is based on platinum (Pt) as a catalyst for both the fuel (anode) and air (cathode) electrodes. This catalyst is highly active but susceptible to poisoning by CO, which may be present in the H 2 -fuel used or may be introduced during the fuel processing. Presence of trace amount of CO in the H 2 -fuel poisons the anode irreversibly and decreases the performance of the PEMFCs. In an effort to reduce the Pt-loading and improve the PEMFC performance, we have synthesized a number of Pt-based binary, ternary, and quaternary electrocatalysts using Ru, Mo, Ir, Ni, and Co as a substitute for Pt. Co-catalytic activities were found for the elements Mo, Ru, and Ir. Both the ternary (Pt/Ru/Mo/C) and quaternary (Pt/Ru/Mo/Ir/C) metal catalysts in membrane electrode assemblies (MEA) outperformed pure Pt/C catalysts at all levels in presence of CO up to 100 ppm. Preliminary results suggest that by substituting Mo, Ru, and Ir in catalyst formulation, it is possible to reduce Pt-loading and increase CO-tolerance in PEMFC application. Comparison studies showed that the newly developed ternary and quaternary catalysts with lower Pt outperformed pure Pt catalyst in presence of CO-contaminated H 2 fuel. High performance at low Pt loading of less than 0.4 mg/cm 2 was achieved, thus exceeding the initial targets. i
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