2,142 research outputs found

    Wet-mill aided continuous cooling mixed suspension mixed product removal crystallizer [Abstract]

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    Wet-mill aided continuous cooling mixed suspension mixed product removal crystallizer [Abstract

    Guided flows in coronal magnetic flux tubes

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    There is evidence for coronal plasma flows to break down into fragments and to be laminar. We investigate this effect by modeling flows confined along magnetic channels. We consider a full MHD model of a solar atmosphere box with a dipole magnetic field. We compare the propagation of a cylindrical flow perfectly aligned to the field to that of another one with a slight misalignment. We assume a flow speed of 200 km/s, and an ambient magnetic field of 30 G. We find that while the aligned flow maintains its cylindrical symmetry while it travels along the magnetic tube, the misaligned one is rapidly squashed on one side, becoming laminar and eventually fragmented because of the interaction and backreaction of the magnetic field. This model could explain an observation of erupted fragments that fall back as thin and elongated strands and end up onto the solar surface in a hedge-like configuration, made by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. The initial alignment of plasma flow plays an important role in determining the possible laminar structure and fragmentation of flows while they travel along magnetic channels.Comment: 11 pages, 8 figures, accepted for publication, movies available upon request to the first autho

    Representing space: the development, content and accuracy of mental representations by the blind and visually impaired

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    This thesis reports on two studies on the perception and cognition of space by individuals who are blind and visually impaired. Research was conducted with students from Dorton College at the Royal London Society for the Blind (RLSB) in Kent. The first experiment examined the content and accuracy of mental representations of a well-known environment. Students walked a route around the RLSB campus and learned the position of ten buildings and structures. They were then asked to make pointing judgments, estimate distances and complete a spatial cued model of the campus. The second experiment considered the wayflnding strategies and spatial coding heuristics used to explore a complex novel environment. Students were asked to explore a maze and learn the position of six different locations. Their search patterns were recorded and analyzed using Geographic Information Systems (GIS) software. Students were tested using the same methods as in the previous experiment and their performance was related to the type and frequency of strategies used during exploration. Results were complemented with a mobility questionnaire, a low vision quality of life questionnaire and data from a literacy and numeracy assessment as well as ethnographic material collected by the author during the two years spent working and living at the RLSB. The thesis begins with a discussion of disability and society framed within the context of geography, urban planning and design. The concepts of blindness and visual impairment are then examined with particular attention given to the psychosocial implications of visual loss. This is followed by a discussion of growth and development, and in-depth review of research on the development, content and accuracy of mental representations by the blind and visually impaired. Finally, the methods used to collect and analyse data for both experiments are considered in light of individual differences and the inadequacy of some statistical techniques to account for the heterogeneous nature of visual impairment. Results from the first experiment revealed significant differences in the accuracy and content of mental representation between the sighted, visually impaired and blind groups for the pointing and model construction tasks. Performance in the distance estimation task was similar across groups. Large individual differences were identified, with the performance of individuals in the same group varying according to the type and requirement of the task. Results from the second experiment also revealed significant differences between the different groups, this time for all three tasks. Here again, large individual differences were found within each group. An analysis of distortions revealed that despite a disparity in accuracy, the blind and visually impaired shared many of the systematic distortions typically found in the mental representation of sighted individuals further confirming their ability develop functional mental representations of space. Performance in the pointing, distance estimation and model construction tasks were also related to the type and frequency of strategies used to explore the maze with the best performers using a combination of egocentric and allocentric strategies. In general, results from the two experiments support the amodal notion that the construction of accurate mental representations of space is not limited to any particular sensory modality but facilitated by the visual system. It also emphasizes the need for mutually supportive techniques that incorporate both quantitative and qualitative methods in the collection and analysis of cognitive data

    An improved transmitter system to accurately measure wet-bulb temperature of air

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    A cost-effective measurement of wet-bulb temperature of air has great benefits to fulfill a growing demand of industry, cultivation agriculture, and medication. Applying an appropriate algorithm to wet-bulb temperature of air measurement can effectively improve the accuracy and speed of its measurement. The study aims to research how an improved transmitter system along with the latent heat–based iteration algorithm is used to precisely measure wet-bulb temperature of air. The work consists of (1) simulation of the iteration algorithm and (2) validation via experimental protocol. The simulation results through latent heat–based iteration algorithm were in good agreement (R2 5 0.99) with the reference. The performance of the improved wet-bulb temperature of air transmitter system was tested by a latent heat–based iteration algorithm experimental setup. The experimental results demonstrate that the improved wet-bulb temperature of air in a good consistency with commercial wet-bulb temperature of air in a range of temperature (15C–34C) and relative humidity (28.8%–76.2%). The Bland–Altman plot also shows that the mean value and the standard deviation of the differences between these two systems are 0.14C and 0.29C, respectively, which indicates that the improved wet-bulb temperature of air has a good agreement as well. Compared with the commercial wet-bulb temperature of air transmitter system, an advanced processor (STM32F103C8T6) and real-time operating system was applied in the improved wetbulb temperature of air transmitter system. The experimental results show that its measurement accuracy is closer to the previous study. This study provides an alternative and cost-effective solution to accurately and real-time measure wet-bulb temperature of ai

    The Other Press, February 19, 1987

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    <p>Energy profile (in kcal.mol<sup>-1</sup>) of face-on path for Erlotinib bioactivation by the Cpd I model of CYP3A4 and 1A2 in the gas and solvent phases.</p

    MODELING EXCHANGE RATE VOLATILITIES IN CROATIA

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    Modeling and forecasting exchange rate volatility has important implications in a range of areas in macroeconomics and finance. A number of models have been developed in empirical finance literature to investigate this volatility across different regions and countries. Well known and frequently applied models to estimate exchange rate volatility are the autoregressive conditional heteroscedastic (ARCH) model advanced by Engle (1982) and the generalized (GARCH) model developed independently by Bollerslev (1986) and Taylor (1986). This paper examines the performance of several ARCH models for the EUR and USD against the HRK on daily data sets within the time period from 1997 to 2015. Evaluating the models through standard information criteria showed that the GARCH (2,1) is the best fitted model  for the EUR/HRK and the GARCH (1,1) for the USD/HRK daily return volatility. In accordance to the estimated models there is no empirical evidence that negative and positive shocks imply a different next period volatility of the daily EUR/HRK as well as the USD/HRK exchange rate return.</p

    Perlindungan Hukum terhadap Hak Karyawan dengan Sistem Outsourcing pada Perusahaan Badan Usaha Milik Negara (Bumn) di Kota Pontianak

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    This study aims to determine: 1) the reasons BUMN In Pontianak using a system of Outsourcing in the recruitment of employees. 2) outsourcing practices in BUMN in Pontianak, 3) the factors that cause outsourcing system has not given legal protection of employees and 4) the perspective of the legal regulation of the employees who were recruited by the BUMN system outsourcing in Indonesia. The research was conducted at the Department of Social Welfare and Labor Pontianak, and involve Pontianak Trade Union Chairman, Director of PT. Media Prima HR Solutions in Pontianak, Director of PT. Telkom Pontianak, Director of PT. PLN Pontianak, Director of PT. Pertamina Pontianak and workers / laborers who work in state-owned companies Pontianak. Data collection methods used were interviews, questionnaires, and direct observations. The data obtained in qualitative analysis. The results show that the legal protection of workers / laborers, both contradictory, always found the gap between das sollen (must) and das science (reality) and always appeared discrepancy between the law in the books and law in action. Fact of economic life with the hegemony of financial capitalism has operated through the "dis-solution subject" who do not see the workers / laborers as production subject that should be protected, but rather as an object that can be exploited, this is what happens in the practice of outsourcing in Indonesia, so that the legalization of outsourcing by Law No. 13 Year 2003 on Manpower reap kotroversi. For those who disagree argue useful in outsourced business development and create new jobs. For those who refused to believe the practice of outsourcing is a modern style of capitalism that brought misery to the workers / laborers. Based on the fact that the authors formulate the problem: 1) Why BUMN In Pontianak Still Using Outsourcing System In Recruitment? 2) Why not outsource system provide legal protection for employees? 3) How should the legal arrangements for employees who were recruited by the BUMN system outsourcing in Indonesia? The objectives are: 1) To explain the reasons BUMN In Pontianak using Outsourcing the recruitment system. 2) To determine the state of outsourcing practices in Pontianak. 3) To disclose and explain the factors that cause outsourcing system has not been providing legal protection for employees. 4) To reveal the perspective of the legal regulation of the employees who were recruited by the BUMN system outsourcing in Indonesia. To answer the problems and research objectives, juridical approach used empirical / sociological research Descriptive Analytical specifications. Data types include Primary Data and Secondary Data collected through library research and documentation (library and documentation) as well as field research (field research), while the sampling was done by using non-random sampling with purposive sampling method. From the discussion, note that the legality of many violations of outsourcing in terms of Pontianak, employment protection and working conditions for workers / laborers outsourcing is not given by the employer to the fullest, while legal protection for workers / laborers are constrained due to the weakness in the system employment law, good substance, structure and culture. Therefore, it is necessary revision of labor legislation, the Local Government of Pontianak need to increase the numberof labor inspectors personnel, provide facilities and an adequate budget for the operation of the labor inspection in order to carry out its duties and functions to the fullest and empower Unions / Union to be able to carry out the purposes and functions well.Keywords: Outsourcing employee/ labour and Legal Protection. A B S T R A KPenelitian ini bertujuan untuk mengetahui : 1) alasan BUMN Di Kota Pontianak menggunakan sistem Outsourcing dalam perekrutan karyawan. 2) praktik outsourcing pada BUMN di Kota Pontianak, 3) faktor-faktor penyebab sistem outsourcing belum memberikan perlindungan hukum terhadap karyawan dan 4) perspektif pengaturan hukum terhadap karyawan yang direkrut dengan sistem outsourcing pada BUMN di Indonesia. Penelitian ini dilakukan di Dinas Sosial dan Tenaga Kerja Pontianak, dan melibatkan Ketua Serikat Buruh Kota Pontianak, Direktur PT. Media Prima HR Solutions di Kota Pontianak, Direktur PT. Telkom Kota Pontianak, Direktur PT. PLN Pontianak, Direktur PT. Pertamina Pontianak serta pekerja/buruh yang bekerja pada Perusahaan BUMN Kota Pontianak. Metode pengumpulan data yang digunakan adalah wawancara, kuesioner, dan pengamatan langsung. Data yang diperoleh di analisis secara kualitatif. Hasil penelitian menunjukkan bahwa perlindungan hukum pekerja/buruh, keduanya saling bertentangan, selalu dijumpai kesenjangan antara das sollen (keharusan) dan das sain (Kenyataan) dan selalu muncul diskrepansi antara law in the books dan law in action. Nyatanya kehidupan ekonomi dengan hegemoni kapitalisme financial telah beroperasi melalui dis-solution subject yang tidak memandang pekerja/buruh sebagai subjek produksi yang patut dilindungi, melainkan sebagai objek yang bisa di eksploitasi, inilah yang terjadi dalam praktik outsourcing di Indonesia, sehingga legalisasi outsourcing berdasarkan Undang-Undang Nomor 13 Tahun 2003 Tentang Ketenagakerjaan menuai kotroversi. Bagi yang setuju berdalih outsourcing bermanfaat dalam pengembangan usaha dan membuka lapangan kerja baru. Bagi yang menolak beranggapan praktik outsourcing merupakan corak kapitalisme modern yang membawa kesengsaraan bagi pekerja/buruh. Berdasarkan Kenyataan itu penulis merumuskan masalah : 1) Mengapa BUMN Di Kota Pontianak Masih Menggunakan Sistem Outsourcing Dalam Perekrutan Karyawan ? 2) Mengapa sistem outsourcing tidak memberikan perlindungan hukum terhadap karyawan ? 3) Bagaimana seharusnya pengaturan hukum terhadap karyawan yang direkrut dengan sistem outsourcing pada BUMN di Indonesia ? Tujuannya adalah : 1) Untuk menjelaskan mengenai alasan BUMN Di Kota Pontianak menggunakan sistem Outsourcing dalam perekrutan karyawan. 2) Untuk mengetahui praktik outsourcing pada BUMN di Kota Pontianak. 3) Untuk mengungkapkan dan menjelaskan faktor-faktor penyebab sistem outsourcing belum memberikan perlindungan hukum terhadap karyawan. 4) Untuk mengungkapkan perspektif pengaturan hukum terhadap karyawan yang direkrut dengan sistem outsourcing pada BUMN di Indonesia. Untuk menjawab permasalahan dan tujuan penelitian, digunakan metode pendekatan yuridis empiris/sosiologis dengan spesifikasi penelitian Deskriptif Analitis. Jenis datanya meliputi Data Primer dan Data Skunder yang dikumpulkan melalui penelitian kepustakaan dan dokumentasi(library and documentation) serta penelitian lapangan(field research), sedangkan pengambilan sampel dilakukan dengan menggunakan teknik Non Random Sampling dengan metode Purposive Sampling. Dari hasil pembahasan diketahui bahwa secara legalitas banyak terjadi pelanggaran syarat-syarat outsourcing di Kota Pontianak, perlindungan kerja dan syarat-syarat kerja bagi pekerja/buruh outsourcing tidak diberikan oleh pengusaha secara maksimal, sedangkan perlindungan hukum bagi pekerja/buruh terkendala karena adanyakelemahan dalam system hukum ketenagakerjaan, baik substansi, struktur maupun kulturnya. Oleh karena itu, perlu revisi atas beberapa peraturan Perundang-undangan ketenagakerjaan, Pemerintah Daerah Kota Pontianak perlu menambah jumlah personel pegawai pengawas ketenagakerjaan, menyediakan sarana dan fasilitas serta anggaran yang memadai untuk operasional pengawasan ketenagakerjaan agar dapat menjalankan tugas dan fungsinya secara maksimal serta memberdayakan Serikat Pekerja/Serikat Buruh agar mampu menjalankan tujuan dan fungsinya dengan baik.Kata Kunci : Pekerja/Buruh Outsourcing dan Perlindungan Hukum

    بررسی حیطه‌های موجود در فرم‌های ارزشیابی از دیدگاه دانشجویان در دانشگاه علوم پزشکی زنجان در سال تحصیلی 86- 87

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    زمینه و هدف: ارزشیابی استادان متداول‌ترین روش جهت سنجش کیفیت آموزش می‌باشد. دانشجویان بیش از دست‌اندرکاران در جریان روند آموزش قرار‌دارند بنابراین با نظرخواهی از آنان دیدگاه کاملی برای مسئولین در مورد نقاط قوت و ضعف استادان به‌دست می‌آید. هدف از این پژوهش بررسی حیطه‌های موجود در فرم‌های ارزشیابی از دیدگاه دانشجویان در دانشکده‌های پزشکی، پیراپزشکی و پرستاری و مامایی می‌باشد. روش بررسی: این تحقیق به صورت توصیفی انجام گرفت. 1683 برگ ارزشیابی دانشجویان از استادان هیأت علمی (73 نفر) مربوط به دانشکده‌های پزشکی، پیراپزشکی و پرستاری- مامایی بررسی شد. پرسش‌نامه‌ی دانشجویان پزشکی حاوی 15 سؤوال و دانشجویان پیراپزشکی و پرستاری مامایی 21 سؤوال بود که بر اساس مقیاس لیکرات از حیطه‌های مختلف مقرراتی، علمی و آموزشی، نظارتی و نگرشی تشکیل شده بود. نمرات سؤوالات از نمره‌ی 100 محاسبه شد، نمرات بالاتر بیانگر عملکرد مطلوب‌تراستادان می‌باشد. تجزیه و تحلیل داده‌ها به‌صورت آمار توصیفی با نرم‌افزار SPSS انجام شد. یافته‌ها: نتایج نشان داد مقایسه در سطوح کلی بین دانشکده‌ها، دانشکده‌ی پیراپزشکی با میانگین کل و انحراف معیار 61/3 ±50/85 نسبت به سایر دانشکده‌ها برتری دارد. دانشکده‌ی پیراپزشکی در حیطه‌ی مقرراتی با میانگین و انحراف معیار 89/3±01/91، دانشکده‌ی پزشکی در حیطه‌ی نگرشی با میانگین و انحراف معیار 45/5±48/90 و دانشکده‌ی پرستاری مامایی در حیطه‌ی مقرراتی با میانگین و انحراف معیار 25/4±34/88 بیشترین امتیاز را داشتند. نتیجه‌نهایی نشان می‌دهد، حیطه‌ی علمی و آموزشی نسبت به سایر حیطه‌ها در سطح پایین‌تر می‌باشد. نتایج حیطه‌ها (علمی و آموزشی، نظارتی و نگرشی) بین دانشکده‌ها معنی‌دار می‌باشد (0001/0=P). نتیجه‌گیری: به نظر می‌رسد با برنامه‌ریزی جهت برگزاری کارگاه‌های آموزشی، روش تدریس و تحقیق جهت ارتقای آموزش استادان، اعطا‌ی فرصت مطالعاتی و تشویق انجام کارهای تحقیقاتی و پژوهشی گام مؤثری جهت ارتقای سطح علمی و بالاخره عملکرد بالای استادان خواهد بود

    Comment; Eco-Ethica and Environmental Ethics

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    千葉大学公共研究センター21世紀プログラム「持続可能な福祉社会に向けた公共研究拠点

    Modeling pedestrian safety at roundabouts

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    This study proposes a method for using a human participant in a field experiment to model pedestrian safety at roundabouts in the United States. Studies show that roundabouts are safer for vehicles, but are inconclusive as to whether pedestrians are at greater risk at roundabouts than at signalized intersections. Recent simulations, including virtual reality, can model pedestrian vehicle interaction, but the proposed technique could use real-world data to calibrate these models. Eight hours of video was made to gather data at a signalized intersection and a roundabout. A physical simulation was used to assess the pedestrian’s cross/don’t cross decision. Standard walking pace was simulated at 3.5 feet per second and a disabled pedestrian at half that pace. This study focused on factors such as signalization, approach streams, exit vs. entrance lanes, pace and direction to provide a realistic picture of the cross vs. don’t cross decision. Data showed that slow pedestrians had a significantly higher rate of don’t cross decisions at the roundabout. Roundabouts are thought to be safer for pedestrians than signalized intersections due to a lower number of conflict points, but the confusing multiple streams of roundabout traffic converging on exit lanes and the frames of approaching traffic at roundabout entrances may mean that another concept may be needed to fully capture pedestrian risks. The data on ‘relevant traffic’ showed that pedestrians had to be attentive to almost six times as many approach streams of traffic in the roundabout as in the signalized intersection. The value of this study is four-fold: 1) Future studies could revisit the conflict point at the core of Traffic Conflict Analysis and consider conflict streams as well; 2) Future studies could consider the cross/don’t cross decision as an important data point with which to evaluate the safety of roundabout crossings; 3) Slow pedestrians fared worse in their ability to cross at the roundabout than at the signalized intersection; 4) The human participant in a field experiment method can be a valuable source of data for calibrating pedestrian safety simulation systems
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