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Comparison of Indoor Localization Systems Based on Wireless Communications

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Wireless Engineering and Technology 2011年第4期2卷 240-256页

作者： Rejane Dalce Thierry Val Adrien Van Den Bossche IRIT irt Université de Toulouse

Localization using a Wireless Sensor Network (WSN) has become a field of interest for researchers in the past years. This information is expected to aid in routing, systems maintenance and health monitoring. For example, many projects aiming to monitor the elderly at home include a personal area network (PAN) which can provide current location of the patient to the medical staff. This article presents an overview of the current trends in this domain. We introduce the mathematical tools used to determine position then we introduce a selection of range-free and range-based proposals. Finally, we provide a comparison of these techniques and suggest possible areas of improvement.

关键词： Wireless Sensor Networks (WSNs) Localization Range-Based Range-Free

Corrosion rate determination of rare-earth Mg alloys in a Na_(2)SO_(4)solution by electrochemical measurements and inductive coupled plasma-optical emission spectroscopy

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Journal of Magnesium and Alloys 2019年第1期7卷 47-57页

作者： Samuel Leleu Bertrand Rives Nicolas Causse Nadine Pébère CIRIMAT Universitéde ToulouseCNRSINPTUPSENSIACET4 allée Emile Monso BP4436231030 Toulouse cedex 4 France irt Saint Exupéry 118 route de Narbonne-CS 4424831432 ToulouseFrance

The corrosion resistance of three Mg alloys containing rare-earth elements(WE43,EV31 and ZE41)was studied and compared to that of two Mg-Al alloys(AZ31 and AZ91)and of pure Mg(99.95 wt.%).Current-voltage curves and electrochemical impedance measurements were performed with rotating disk electrodes in an aerated 0.1 M Na_(2)SO_(4)*** all the alloys,it was confirmed that the intermetallic particles acted as local cathodes and that more protective films were formed on the alloys surface by comparison with the pure *** rates were determined from inductive coupled plasma-optical emission spectroscopy measurements and from the electrochemical *** corrosion rates were observed for the rare-earth Mg alloys compared to the AZ series *** data allowed the corrosion mechanisms to be discussed.

关键词： Magnesium alloys Rare-earth elements EIS ICP-OES Interface

DETERMINISTIC CHANNEL TRACKING AND SIGNAL DETECTION FOR MULTI-CARRIER TRANSMISSIONS OVER HIGH-MOBILITY RADIO CHANNELS

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DETERMINISTIC CHANNEL TRACKING AND SIGNAL DETECTION FOR MULT...

2009 IEEE International Conference on Communication Technology and Applications（ICCTA2009）

作者： Hidetoshi Kayama Hiroyuki Otsuka irt Lab DOCOMO Beijing Comm.Labs Co.Ltd.

＜正＞Adding into the cluster of available detection schemes designed for scenarios where user terminals are highly mobile,this paper describes a semi-self-recovery OFDM signal detection method for rapidly time-varying *** proposed algorithm does not assume the channel status information （CSI） at the receiver,it tracks the channel variation while detecting the data *** key feature of the scheme is that it exploits both the finite alphabet（FA） property of the symbols and the finite number of the discrete significant signal replicas over multipath ***,it judiciously utilizes a total-variation regularization（TVR） and iteratively enforces FA property to gain the accuracy of the channel *** was widely applied in the image processing area for image denoising. In the proposed method for multi-carrier transmissions,it is found very effective to properly employ TVR in suppressing the spurious components in the estimated channel coefficients. As a result,the algebraic method is able to well exploit the signal frame structure,it can work either in a semi-self-recovery fashion without pilot-subcarriers or work with an arbitrary pilot-subcarrier *** simulation verifies that the proposed scheme exhibits a quick convergence,and at a benign or a high SNR case,it delivers a performance asymptotically approaching that of the inter-carrier-interferences（ICI） mitigating least-square detection method that ideally assumes perfect CSI at the receiver.

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未来家用机器人设想与研究

机器人技术与应用 2011年第2期 1-5页

作者：下山勲张炜(译) 东京大学irt研究机

比尔·盖茨一句"家家都有机器人"的预言引发了人们对机器人的强烈渴望,机器人真的能走入家庭吗?什么时候机器人能走入家庭?什么功能的机器人能够走入家庭?研究人员在进行机器人技术研究的同时,应用功能的探讨也提到桌面热议。日本东京... 详细信息

比尔·盖茨一句"家家都有机器人"的预言引发了人们对机器人的强烈渴望,机器人真的能走入家庭吗?什么时候机器人能走入家庭?什么功能的机器人能够走入家庭?研究人员在进行机器人技术研究的同时,应用功能的探讨也提到桌面热议。日本东京大学将人们希望让机器人分担的事务进行了归纳统计,并在此基础上,有针对性地进行研究,推出了最可能实现的机器人实验室产品。该大学的这些调查和研究有助于从事机器人研究的专家学者启迪和思考。

关键词：家用机器人日本东京大学机器人技术研究人员专家学者家庭实验室功能

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ADVANTAGES OF A NEW EXCIMER LASER FOR GLAUCOMA SURGERY

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国际眼科杂志 2003年第1期3卷 93-93页

作者： N.N.Ereskin K.P.Takhchidi S.K.Vartapetov A.V.Doga D.A.Magaramov T.V.Sokolovskaya irt Complex Eye Microsurgery of Fyodorov RussiaIRT Complex Eye Microsurgery of Fyodorov RussiaIRT Complex Eye Microsurgery of Fyodorov RussiaIRT Complex Eye Microsurgery of Fyodorov RussiaIRT Complex Eye Microsurgery of Fyodorov RussiaIRT Complex Eye Microsurgery of Fyodorov Russia

Last years the excimer laser surgery attracts more and more attention of researchers. At the end of 1999 a portable specialized excimer laser unit with a 193nm wavelength for glaucoma surgery was created under the leadership of Academician S.N. Fyodorov and the Nobel Prize Winner, Academician A.M. Prokhorov. In contrast to well-known excimer lasers besides

关键词：青光眼准分子激光手术优点激光装置临床试验

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DVB-H和DAB在移动环境下的差别

世界广播电视 2005年第5期19卷 83-86页

作者： AndreasSieber ChrisWeck 冯锡增德国广播技术研究所（irt）成员不详

作为向移动式、手提式甚至手持式接收机分发流(媒体)内容的手段，欧洲两种数字地面广播系统DVB和DAB成了焦点。而结合蜂窝电话网络来利用这些广播系统，有哪些好处和不足？

关键词： DAB DVB-H 移动环境差别地面广播系统电话网络移动式接收机手持式手提式

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低频混响时间的测量问题

声学技术 1986年第3期 25-32页

作者：查雪琴,尤根·欧尔曼(Jurgen Oelmann) 《广播电视部设计院》西德广播技术研究所irt

从天然提取物或分离部位中以碳酸酐酶II为靶点的抗骨质疏松活性筛选(英文)

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云南植物研究 2003年第6期25卷 724-729页

作者：付祥谭宁华姜立花贾锐锐嵇长久 LANDRO James FEKETE Alexander MUELLER Hartwig HENKEL Thomas 中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室云南昆明650204 Bayer Corporation IRT Bayer AG PH-R-EU

目的是以碳酸酐酶II (CAII)为靶点筛选其抑制剂 ,以期寻找抗骨质疏松活性样品。实验是在 96孔酶标板上对来源于 1 78个科、 60 8个属、 1 0 2 0种动植物 2 91 9个提取物或分离部位样品在CA II模型上进行了批量筛选。结果表明在 1 0 μg... 详细信息

目的是以碳酸酐酶II (CAII)为靶点筛选其抑制剂 ,以期寻找抗骨质疏松活性样品。实验是在 96孔酶标板上对来源于 1 78个科、 60 8个属、 1 0 2 0种动植物 2 91 9个提取物或分离部位样品在CA II模型上进行了批量筛选。结果表明在 1 0 μg ml浓度下发现了来源于 40个科、61个属、72个种的 1 0 0个样品有活性 ,其中 5个样品的IC50 小于 2 50 μg ml,2 2个样品的IC50 在 2 51～ 5 0 0 μg ml范围 ,73个样品的IC50 在 5 0 1～1 0 0 0 μg ml范围。通过以上工作我们认为以碳酸酐酶II为分子靶点的体外筛选方法稳定、方便、快速、微量、有效 ,特别适用于天然产物的抗骨质疏松活性筛选。

关键词：抗骨质疏松活性筛选碳酸酐酶Ⅱ 天然产物提取物分离部位

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Scalable fabrication of microneedle arrays via spatially controlled UV exposure

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Microsystems & Nanoengineering 2016年第1期2卷 73-81页

作者： Hidetoshi Takahashi Yun Jung Heo Nobuchika Arakawa Tesuo Kan Kiyoshi Matsumoto Ryuji Kawano Isao Shimoyama Department of Mechano-Informatics Graduate School of Information Science and Technologythe University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8656Japan Department of Mechanical Systems Engineering Graduate School of EngineeringTokyo University of Agriculture and Technology2-24-16 Naka-choKoganei-shiTokyo 184-8588Japan Department of Mechanical Engineering and Intelligent Systems Graduate School of Informatics and Engineeringthe University of Electro-Communications1-5-1 ChofugaokaChofu-shiTokyo 182-8585Japan irt Research Initiative the University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8656Japan Department of Biotechnology and Life Science Graduate School of EngineeringTokyo University of Agriculture and Technology2-24-16 Naka-choKoganei-shiTokyo 184-8588Japan

This paper describes a theoretical estimation of the geometry of negative epoxy-resist microneedles prepared via inclined/rotated ultraviolet(UV)lithography based on spatially controlled UV exposure *** comparison with other methods based on UV lithography,the present method can create microneedle structures with high *** negative photoresist is exposed to inclined/rotated UV through circular mask patterns,a three-dimensional,needle-shaped distribution of the exposure dose forms in the irradiated *** the inclination angles and the exposure dose modifies the photo-polymerized portion of the photoresist,thus allowing the variation of the heights and contours of microneedles formed by using the same mask *** an experimental study,the dimensions of the fabricated needles agreed well with the theoretical predictions for varying inclination angles and exposure *** results demonstrate that our theoretical approach can provide a simple route for fabricating microneedles with on-demand *** fabricated microneedles can be used as solid microneedles or as a mold master for dissolving microneedles,thus simplifying the microneedle fabrication *** envision that this method can improve fabrication accuracy and reduce fabrication cost and time,thereby facilitating the practical applications of microneedle-based drug delivery technology.

关键词： inclined/rotated lithography microneedle array UV exposure ratio