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International Symposium on Nanoscience and Nanotechnology in Life sciences 2017, ISNNLS 2017

作者： Alfianto, Enggar Agustini, Siti Muharom, Syahri Rusydi, Febdian Puspitasari, Ira Department of Computer System Institut Teknologi Adhi Tama Surabaya Jl. Arief Rachman Hakim No 100 Surabaya Indonesia Electrical Engineering Department Institut Teknologi Adhi Tama Surabaya Jl. Arief Rachman Hakim No 100 Surabaya Indonesia Theoretical Physics Research Group Dep. of Physics Fac. of Science and Technology Airlangga University Jl. Mulyorejo Surabaya60115 Indonesia Dep. of the Information System Fac. of Science and Technology Airlangga University Jl. Mulyorejo Surabaya60115 Indonesia

Electricity is one of the basic needs in the era of technological development, where all equipment must use electricity to operate such as computer, so that it requires a system that can monitor power consumption at computer cluster. To monitoring power consumption using WCS1800 to current sensor and microcontroller Atmega32 to data sensor process, and serial communication to send data to display at personal computer. From test system having two result, first is power consumption at computer cluster starting, where current value range is 0 to 38A with power consumption is 0 to 8360 watt. And second is power consumtion at computer cluster execution progran, current value is 27 to 40 A, with power consumption 5940 to 8800 watt. From this system has been design, the power consumption at computer cluster can be monitored and known value of energy consumption. © 2020 Published under licence by IOP Publishing Ltd.

关键词： Electric power utilization

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Shape from shading with specular highlights: Analysis of the Phong model

Shape from shading with specular highlights: Analysis of the...

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IEEE International Conference on Image Processing

作者： Michael Breuß Yong Chul Ju Saarland University Fac. of Mathematics and Computer Science Saarbrücken Germany School of Science and Technology Department of Information and Computer Science Aalto University Aalto Finland

Recently, non-Lambertian models for perspective shape from shading (PSFS) have received attention in the literature. The Phong-based PSFS model combining Lambertian and specular reflection has been shown to give good results for objects in real-world images. In this paper, we present at hand of this model the first analysis of a non-Lambertian PSFS model in the literature. We show mathematically and experimentally how crucial the specular part of the model is for the reconstruction. Moreover, we give a detailed analysis of the Hamiltonian defining the model. While the non-Lambertian reflectance is generally assumed to lead to numerical difficulties, this investigation shows that an efficient fast marching scheme can be applied successfully without losing depth information. Our work represents a first step towards the thorough understanding of non-Lambertian PSFS models.

关键词： Shape Mathematical model Computational modeling Numerical models Frequency modulation Equations Light sources

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Towards an integrated, simulative framework for real-world modelling

Towards an integrated, simulative framework for real-world m...

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Annual Hawaii International Conference on System sciences (HICSS)

作者： A.L. Opdahl G. Sindre Department of Information Science University of Bergen Bergen Norway Fac. of El. Eng. and Computer Science Norwegian Institute of Technology Trondheim Norway

The creation of simulative conceptual models for information systems (IS) development is time consuming because of the detailed specifications needed. Simulation (and animation) capabilities should therefore be supported directly by the languages and tools used for conceptual modelling anyway. At the same time, problem domains are becoming more and more complex with several groups of stakeholders participating in the modelling and simulation process. This places stronger requirements on the models and languages used in terms of intuitiveness and view integration. The paper outlines an integrated framework for simulative conceptual models, based on re-interpreted dataflow diagrams (DPD) and entity-relationship (E-R) models in order to reduce the additional effort of simulation. The framework shifts modelling focus from representation of informational abstractions of the phenomena in the real-world problem domain to the phenomena themselves through fac.t modelling. In this way, multiple stakeholders' views can be represented simultaneously, while more concrete representations of the problem domain may make simulation results more understandable for non-experts.

关键词： Object oriented modeling Analytical models Animation information analysis Concrete information systems Computational modeling Materials processing information science Design for disassembly

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High-Performance Computing (HPC) design to improve the quality of Introduction of Parallel Computing lectures 1

High-Performance Computing (HPC) design to improve the quali...

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1st International Conference on Advanced Engineering and technology, ICATECH 2018

作者： Alfianto, E. Sa'Diyah, A. Rusydi, F. Puspitasari, I. Dep. of Computer System Institut Teknologi Adhi Tama Surabaya Jl Arif Rachman Hakim 100 Surabaya60111 Indonesia Dep. of Marine Engineering Politeknik Perkapalan Negeri Surabaya Kampus ITS-Sukolilo Jl Jalan Teknik Kimia Surabaya60117 Indonesia Theoretical Physics Research Group Dep. of Physics Fac. of Science and Technology Airlangga University Jl. Mulyorejo Surabaya60115 Indonesia Dep. of the Information System Fac. of Science and Technology Airlangga University Jl. Mulyorejo Surabaya60115 Indonesia

High-Performance Computing (HPC) has been created to improve the quality of Pengantar Komputasi Parallel lectures. HPC consists of two PCs with AMD Ryzen 7 processor connected by high-speed LAN. HPC is used to solve problems that students can't practice Parallel Computing because the computer used is not adequate. So it takes a machine that can used together that has many processors, so the problems encountered are resolved. The results obtained, participants can use more than four processors to solve tree problems directly. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Parallel processing systems

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information Systems Development 1

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1000年

作者： Rob Pooley Jennifer Coady Christoph Schneider Henry Linger Chris Barry Michael Lang

ISBN: (数字)9781461449515

ISBN: (纸本)9781461449508;9781493939572

information Systems Development: Reflections, Challenges and New Directions, is the collected proceedings of the 20th International Conference on information Systems Development held in Edinburgh, Scotland, August 24 - 26, 2011. It follows in the tradition of previous conferences in the series in exploring the connections between industry, research and education. These proceedings represent ongoing reflections within the academic community on established information systems topics and emerging concepts, approaches and ideas. It is hoped that the papers herein contribute towards disseminating research and improving practice

关键词： database Management information Storage and Retrieval IT in Business Computer science, general Software Engineering/Programming and Operating Systems

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Spatially Continuous Non-Contact Cold Sensation Presentation Based on Low-Temperature Airflows

Spatially Continuous Non-Contact Cold Sensation Presentation...

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World Haptics Conference

作者： Koyo Makino Jiayi Xu Akiko Kaneko Naoto Ienaga Yoshihiro Kuroda Grad. Sch. of Science and Technology University of Tsukuba Ibaraki Tsukuba Fac. of Engineering Information and Systems University of Tsukuba Ibaraki Tsukuba

Our perception of cold enriches our understanding of the world and allows us to interact with it. Therefore, the presentation of cold sensations will be beneficial in improving the sense of immersion and presence in virtual reality and the metaverse. This study proposed a novel method for spatially continuous cold sensation presentation based on low-temperature airflows. We defined the shortest distance between two airflows perceived as different cold stimuli as a local cold stimulus group discrimination threshold (LCSGDT). By setting the distance between airflows within the LCSGDT, spatially continuous cold sensations can be achieved with an optimal number of cold airflows. We hypothesized that the LCSGDTs are related to the heat-transfer capability of airflows and developed a model to relate them. We investigated the LCSGDTs at a flow rate of 25 L/min and presentation distances ranging from 10 to 50 mm. The results showed that under these conditions, the LCSGDTs are 131.4 ± 1.9 mm, and the heat-transfer capacity of the airflow corresponding to these LCSGDTs is an almost constant value, that is, 0.92.

关键词：

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Spatially Continuous Non-Contact Cold Sensation Presentation Based on Low-Temperature Airflows

arXiv

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arXiv 2023年

作者： Makino, Koyo Xu, Jiayi Kaneko, Akiko Ienaga, Naoto Kuroda, Yoshihiro Grad. Sch. of Science and Technology University of Tsukuba Ibaraki Japan Fac. of Engineering Information and Systems University of Tsukuba Ibaraki Japan

关键词： Heat transfer

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Optimal rules for deciding on instructional routes in intelligent tutoring systems

International Journal of Continuing Engineering Education an...

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International Journal of Continuing Engineering Education and Life-Long Learning 2002年第1-4期12卷 135-148页

作者： Vos, Hans University of Twente Fac. of Educ. Science and Technology Dept. of Educ. Msrmt. Data Analysis P.O. Box 217 7500 AE Enschede Netherlands

Intelligent Tutoring Systems (ITSs) can be described as instructional networks with individual routes for the students. The purpose of this paper is to formulate optimal rules for deciding on such routes in ITSs using achievement tests administered to the students and information about their previous history in the system. As an example, three types of elementary test-based decisions (viz. selection, placement and mastery decisions) are combined into an instructional network of an ITS. By simultaneous optimisation of the decisions in this network, rules for guiding the progress of students through ITSs can be designed. The framework for the approach is derived from Bayesian decision theory. Results from an empirical example of instructional decision making in medicine will be presented to illustrate the differences between a simultaneous and a separate approach.

关键词： Computer aided instruction

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Enhancement of Reliability of Message Delivery in Many-Subscriber MQTT Networks

Enhancement of Reliability of Message Delivery in Many-Subsc...

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Asia-Pacific Conference on Communications

作者： Sumika Kojima Takumi Wada Yuusuke Kawakita Yui Yamashita Yoshito Tobe Grad. Sch. of Science and Technology Aoyama Gakuin University Sagamihara Japan Fac. of Information Technology Kanagawa Institute of Technology Atsugi Japan Dept. of Integrated Information Technology Aoyama Gakuin University Sagamihara Japan

ISBN: (数字)9798331517816

ISBN: (纸本)9798331517823

A message protocol called message queuing telemetry transport (MQTT) is being used in large-scale energy-efficient communications. However, even when using MQTT, if the network quality and capacity are insufficient, especially when there are many subscribers, nodes may fail to receive messages. Therefore, we propose a new communication control mechanism, eXchanging attributes of transmission uniformity (Xatu). The goal of Xatu is to establish a reliable new method that can compensate for message loss even in long-time and large-scale environments. Xatu sets up a state called bridge, and a conventional MQTT subscriber switches to a bridge. Xatu allows messages to be sent to all subscribers without missing messages.

关键词： Bridges Transport protocols Asia Streaming media Real-time systems Energy efficiency Reliability Telemetry Streams

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Psychological fac.ors involved in auditory presence

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Acoustical science and technology 2003年第1期24卷 42-44页

作者： Ozawa, Kenji Chujo, Yoshihiro Suzuki, Yôiti Sone, Toshio Faculty of Engineering Yamanashi University 4-3-11 Takeda Kofu 400-8511 Japan Res. Inst. of Elec. Communication Grad. School of Information Sciences Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan Fac. of Syst. Science and Technology Akita Prefectural University 84-4 Ebinokuchi Tsuchiya Honjo 015-0055 Japan

The relation between auditory presence and psychological fac.ors of sound perception was discussed. Multiple regression analysis was used to examine the relationship. Sufficient information on sound should be provided to the listener for imaging the original scene naturally and sound sources should be well localized. The effects of visual information clarified the multimodal nature of the impression of presence.

关键词： Audition

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