45 research outputs found

    Pembangunan JIG robot pengimpal bagi mengoptimakan masa pengajaran dan pembelajaran dalam kelas pembuatan (Development of JIG robot welding to optimize teaching and learning time in manufacturing classes) / Norfauzi T. ... [et al.]

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    Makalah ini berdasarkan masalah yang dihadapi apabila menggunakan Mesin Robot Pengimpalmodel ABB IRB 1410 semasa sesi pengajaran dan pembelajaran (P&P). Mesin Robot Pengimpal adalah mesin yang diprogramkan untuk membawa Robot Pengimpal pada bahan kerja secara automatik, namun demikianterdapat pelbagai masalah yang dihadapi, antaranya adalah perubahan kedudukan bahan kerja apabila proses kimpalan dijalankan.Kaedah semasa, memerlukan proses kimpalan titik terlebih dahulu dan memerlukan waktu yang lama untuk menyiapkan kedudukan bahan kerja. Berdasarkan masalah yang dihadapi, masa yang ditetapkan untuk sesi makmal mengambil masa yang lama dan mengganggu proses P&P. Objektif projek ini adalah untuk mengoptimumkan jadual penggunaan mesin Robot Pengimpal pada masa yang telah ditetapkan dan menyediakan latihan yang mencukupi kepada para pelajar dalam rangka masa jadual. Jig dibangunkan melalui lukisan kejuruteraan serta analisis keberkesanan jig melalui perisian CATIA V5 R23. Melalui CAD (lukisan terbantu computer) ia akan diterjemahkan kepada CAM (Pemesinan dibantu komputer)dan seterusnya dipindahkan kepada mesin untuk melakukan proses pemesinan pada setiap komponen dan memasang keseluruhan komponen. Keputusan untuk pembangunan Jig pada penetapan masa bahan kerja dan masa penggunaanRobot Pengimpal dapat dikurangkan lebih dari 40% dan jig juga boleh digunakan untuk sambungan temu, sambungan tindih dan sambungan T, di mana ketiga-tiga sambungan digunakan dalam proses pembelajaran di Makmal Pencantuman Termaju. Kesimpulannya, Jig dibangunkan untuk memudahkan pelajarmengendalikan Robot pengimpal dan mengurangkan masa persediaan bahan kerja

    Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

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    A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

    Jet size dependence of single jet suppression in lead-lead collisions at sqrt(s(NN)) = 2.76 TeV with the ATLAS detector at the LHC

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    Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead-lead collisions at sqrt(s) = 2.76 TeV corresponding to an integrated luminosity of approximately 7 inverse microbarns, ATLAS has measured jets with a calorimeter over the pseudorapidity interval |eta| < 2.1 and over the transverse momentum range 38 < pT < 210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R = 0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet "central-to-peripheral ratio," Rcp. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. Rcp varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.Comment: 15 pages plus author list (30 pages total), 8 figures, 2 tables, submitted to Physics Letters B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2011-02

    A draft human pangenome reference

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    Here the Human Pangenome Reference Consortium presents a first draft of the human pangenome reference. The pangenome contains 47 phased, diploid assemblies from a cohort of genetically diverse individuals. These assemblies cover more than 99% of the expected sequence in each genome and are more than 99% accurate at the structural and base pair levels. Based on alignments of the assemblies, we generate a draft pangenome that captures known variants and haplotypes and reveals new alleles at structurally complex loci. We also add 119 million base pairs of euchromatic polymorphic sequences and 1,115 gene duplications relative to the existing reference GRCh38. Roughly 90 million of the additional base pairs are derived from structural variation. Using our draft pangenome to analyse short-read data reduced small variant discovery errors by 34% and increased the number of structural variants detected per haplotype by 104% compared with GRCh38-based workflows, which enabled the typing of the vast majority of structural variant alleles per sample

    ATLAS detector and physics performance: Technical Design Report, 1

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    Validation of the boston carpal tunnel questionnaire in Russia

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    International scales and questionnaires have become widespread in Russian neurology. Validation is a procedure of top priority necessary before applying this kind of diagnostic instrument in Russian-speaking population. In this article, validation of the Boston Carpal Tunnel Questionnaire (BCTQ) intended for patients with this disease is described. Use of validated Russian version would allow to objectively evaluate severity of clinical manifestations of carpal tunnel syndrome and follow patient dynamics. We present the official BCTQ version recommended for use in Russia, as well as data that showed high sensitivity and reliability of this instrument for clinical evaluation of carpal tunnel syndrome. © 2018 ABV-Press Publishing House. All rights reserved

    Validation of the boston carpal tunnel questionnaire in Russia

    No full text
    International scales and questionnaires have become widespread in Russian neurology. Validation is a procedure of top priority necessary before applying this kind of diagnostic instrument in Russian-speaking population. In this article, validation of the Boston Carpal Tunnel Questionnaire (BCTQ) intended for patients with this disease is described. Use of validated Russian version would allow to objectively evaluate severity of clinical manifestations of carpal tunnel syndrome and follow patient dynamics. We present the official BCTQ version recommended for use in Russia, as well as data that showed high sensitivity and reliability of this instrument for clinical evaluation of carpal tunnel syndrome. © 2018 ABV-Press Publishing House. All rights reserved
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