567 research outputs found

    Kalman Filter for Moving Object Tracking: Performance Analysis and Filter Design

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    This chapter presents Kalman filters for tracking moving objects and their efficient design strategy based on steady-state performance analysis. First, a dynamic/measurement model is defined for the tracking systems, assuming both position-only and position-velocity measurements. Then, problems with the Kalman filter design in tracking systems are summarized, and an efficient steady-state performance index proposed by the author [termed the root-mean-squared error index (the RMS index)] is introduced to resolve these concerns. The analytical relationship between the proposed RMS index and the covariance matrix of the process noise is shown, leading to a proposed design strategy that is based on this relationship. Theoretical performance analysis is conducted using the performance indices to show the optimality of the design strategy. Numerical simulations show the validity of the theoretical analyses and effectiveness of the proposed strategy in realistic situations. In addition, the optimal performance of the position-only-measured and position-velocity-measured systems is analyzed and compared. This comparison shows that the position-velocity-measured Kalman filter tracking is accurate when compared with the position-only-measured filter

    Asuhan Keperawatan Pada Ny. S Dengan Stroke Hemoragik (Stroke Hemorrhagic) Di Ruang ICU Rumah Sakit Umum Daerah Karanganyar

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    Stroke hemoragik merupakan penyakit neurologis kegawatan sebagai penyebab utama kecacatan fisik dan mental pada usia lanjut maupun usia produktif, dan perempuan sebagai resiko tertinggi dibandingkan dengan laki-laki. Angka kejadian penyakit stroke hemoragik dari tahun ketahun terus meningkat sehingga penyakit stroke sebagai masalah yang serius di dunia. Stroke hemoragik adalah gangguan neorologik mendadak yang terjadi pembatasan atau terhentinya aliran darah akibat pecahnya pembuluh darah otak dan melalui system suplai arteri otak. Tujuan umum dari Karya Tulis Ilmiah ini adalah untuk mengetahui suatu konsep ilmiah tentang gambaran asuhan keperawatan kegawatdaruratan stroke hemoragik. Metode yang dilakukan pada Karya Tulis Ilmiah ini adalah menggunakan teknik wawancara, observasi, pemeriksaan fisik, studi dokumen dan studi kepustakaan. Kesimpulan Karya Tulis Ilmiah ini adalah terjadi kegawatan penyakit antara lain bersihan jalan nafas tidak efektif dan gangguan perfusi serebaral

    Three-Dimensional Imaging Method Incorporating Range Points Migration and Doppler Velocity Estimation for UWB Millimeter-Wave Radar

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    High-resolution, short-range sensors that can be applied in optically challenging environments (e.g., in the presence of clouds, fog, and/or dark smog) are in high demand. Ultrawideband (UWB) millimeter-wave radars are one of the most promising devices for the above-mentioned applications. For target recognition using sensors, it is necessary to convert observational data into full 3-D images with both time efficiency and high accuracy. For such conversion algorithm, we have already proposed the range points migration (RPM) method. However, in the existence of multiple separated objects, this method suffers from inaccuracy and high computational cost due to dealing with many observed RPs. To address this issue, this letter introduces Doppler-based RPs clustering into the RPM method. The results from numerical simulations, assuming 140-GHz band millimeter radars, show that the addition of Doppler velocity into the RPM method results in more accurate 3-D images with reducing computational costs

    【書評】 中井久夫著『徴候・記憶・外傷』

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    CFD analysis of a trickle bed with air-cmc system

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    Trickle Bed Reactors have wide scale application in chemical process industries mainly in petrochemical and refinery process because of their flexibility and simplicity of operation. Pressure drop and liquid holdup are the basic parameters for design, scale up and operation of trickle bed reactors. However multiphase flow in trickle bed reactor is known to be extremely complex and depends on various effects including the physico-chemical properties of gas, liquid and solid phases, ratio of column diameter to particle diameter and most importantly gas and liquid superficial velocities. Since most of the fluids encountered in industrial processes are non Newtonian, simulations have been carried out for air- Carboxy Methyl Cellulose system. In the present work an attempt has been made to study the hydrodynamics of a co-current gas-liquid-solid trickle bed reactor. CFD simulations have been done using Eulerian-Eulerian approach for a trickle bed system. The contours of volume fraction for the different phases are shown. Also the effect of liquid and gas velocity on the phase hold up and pressure drop are represented in graphical form and studied. The results obtained from simulations have been compared with the experimental data available in literature and there is a close agreement between the two

    音響情報を利用したイスタンブル海峡における 小型鯨類の生態に関する研究

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    京都大学0048新制・課程博士博士(情報学)甲第19853号情博第604号新制||情||105(附属図書館)32889京都大学大学院情報学研究科社会情報学専攻(主査)教授 守屋 和幸, 教授 大手 信人, 教授 荒井 修亮学位規則第4条第1項該当Doctor of InformaticsKyoto UniversityDFA
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