Distributed Detection in Sensor Networks with Limited Range Sensors

We consider a multi-object detection problem over a sensor network (SNET) with limited range sensors. This problem complements the widely considered decentralized detection problem where all sensors observe the same object. While the necessity for global collaboration is clear in the decentralized detection problem, the benefits of collaboration with limited range sensors is unclear and has not been widely explored. In this paper we develop a distributed detection approach based on recent development of the false discovery rate (FDR). We first extend the FDR procedure and develop a transformation that exploits complete or partial knowledge of either the observed distributions at each sensor or the ensemble (mixture) distribution across all sensors. We then show that this transformation applies to multi-dimensional observations, thus extending FDR to multi-dimensional settings. We also extend FDR theory to cases where distributions under both null and positive hypotheses are uncertain. We then propose a robust distributed algorithm to perform detection. We further demonstrate scalability to large SNETs by showing that the upper bound on the communication complexity scales linearly with the number of sensors that are in the vicinity of objects and is independent of the total number of sensors. Finally, we deal with situations where the sensing model may be uncertain and establish robustness of our techniques to such uncertainties.Comment: Submitted to IEEE Transactions on Signal Processin

TURKISH CAR INSURANCE USERS’ KNOWLEDGE AND SATISFACTION LEVELS ABOUT AUTO INSURANCE

Insurance sector has more powerful effect on every countries' economy especially in developed countries. Insurance sector has more subsector like health, retirement, fire, accident, car etc. Car insurance subsector has more importance and value in most countries. Car insurance usage level and users knowledge level are very important indicator for both insurance sector service quality and development level. For this purpose, we prepare a public survey and distribute to nearly 235 people in Marmara region. With this public survey is aimed at enlighten these points; Why does auto insurance holders use car insurance? Which reasons have most importance for them? Which knowledge level of car insurance holders? Prices , range , coverage, fast, amount of compensations.. Car insurance holders satisfaction levels from auto insurance firms’ service and helping quality Car insurance coverage and price balance and users thoughts Car insurance users' insurance law knowledge etc… Depend level to car insurance firms

Self-Aligned Ballistic Molecular Transistors and Electrically Parallel Nanotube Arrays

Carbon nanotube field-effect transistors with structures and properties near the scaling limit with short (down to 50 nm) channels, self aligned geometries, palladium electrodes with low contact resistance and high-k dielectric gate insulators are realized. Electrical transport in these miniature transistors is near ballistic up to high biases at both room and low temperatures. Atomic layer deposited (ALD) high-k films interact with nanotube sidewalls via van der Waals interactions without causing weak localization at 4 K. New fundamental understanding of ballistic transport, optical phonon scattering and potential interfacial scattering mechanisms in nanotubes are obtained.Comment: Nano Letters, in pres

Orta Asya'dan Anadolu’ya han yağması ve tahta çıkma geleneği

Kaşgarlı Mahmud'un eserinde; "Hanların düğünlerinde veya bayramlarda yağma edilmek üzere hazırlanan sofra."Olarak geçen Han Yağması geleneği ihtiyaç sahibi olan kimselerin ihtiyaçlarının giderilmesi ve biriktirilen malın yeniden paylaşılması olarak da değerlendirilebilir. Orta Asya'da hükümdarın şahsi servetler edinip, halkının durumunu düşünmeden hareket etmesini engellemek maksadıyla, hükümdar yılda iki kez halka açık ziyafetler verir ardından eşi ile otağından çıkarak halkın otağı yağma edip ihtiyaçlarını almasını sağlardı. 'Han-ı yağma" deyiminin bu "potlaç'' töreni ile ilgili bir deyim olduğu ilk defa rahmetli Ziya Gökalp tarafından kaydedilmiştir. Türkler bir defa "hoy" diyerek bütün sofrayı yağma ederlerdi. Hafız-i Şirazi'nin beyitlerinden de anlaşılıyor ki İranlılar "han-ı yağma" törenini Türk göreneği saymışlardır. Bu geleneğin Orta-Asya boyları arasında Moğol istilasından sonra devam ettiğine dair elimizde tarihi veri mevcut değildir. Moğolların, Timur ve oğullarının devrinde yazılan tarih kitaplarında Türk gelenek ve göreneklerine çok önem verilmekte, en küçük olaylar bile yazarların gözünden kaçmamaktadır. Durum böyle iken bu devrin yazarlarından hiçbir kimse Potlaç izi olabilecek bir gelenekten bahsetmemiştir. Dikkate değer bir bilgi ise XVIII. yüzyılın sonlarına kadar Osmanlı sarayında 'han-ı yağma'yı çok andıran bir gelenek tarih belgelerinde kaydedilmiştir. Bu da Han Yağması geleneğinin biçim değiştirmiş hali olan "Çanak Yağması" geleneği olarak karşımıza çıkmaktadır. Selçuklular ve Suriye Atabegleri (Zen-giler)'nde ve Osmanlılarda da toy geleneğinin yeni formları sürmüştür. Suriye hükümdarı Nureddin Mahmud’un Arap etkisi altındaki bir ortamda bile yağmalı toylar verdiği bilinmektedir

A Study of Inclusive Double-Pomeron-Exchange in p pbar -> p X pbar at root s = 630 GeV

We report measurements of the inclusive reaction, p pbar -> p X pbar, in events where either or both the beam-like final-state baryons were detected in Roman-pot spectrometers and the central system was detected in the UA2 calorimeter. A Double-Pomeron-Exchange (DPE) analysis of these data and single diffractive data from the same experiment demonstrates that, for central masses of a few GeV, the extracted Pomeron-Pomeron total cross section exhibits an enhancement which exceeds factorization expectations by an order-of-magnitude. This may be a signature for glueball production. The enhancement is shown to be independent of uncertainties connected with possible non-universality of the Pomeron flux factor. Based on our analysis, we present DPE cross section predictions, for unit (1 mb) Pomeron-Pomeron total cross section, at the Tevatron, LHC and the 920 GeV fixed-target experiment, HERA-B.Comment: 52 pages, 27 Encapsulated Postscript figures, 3 Tables, LaTex, Revised version as it will appear in European Physics Journal

Cross Section Measurements of Hard Diffraction at the SPS-Collider

The UA8 experiment previously reported the observation of jets in diffractive events containing leading protons (``hard diffraction''), which was interpreted as evidence for the partonic structure of an exchanged Reggeon, believed to be the Pomeron . In the present Letter, we report the final UA8 hard-diffractive (jet) cross section results and their interpretation. After corrections, the fraction of single diffractive events with mass from 118 to 189 GeV that have two scattered partons, each with Et_jet > 8 GeV, is in the range 0.002 to 0.003 (depending on x_p). We determine the product, fK, of the fraction by which the Pomeron's momentum sum rule is violated and the normalization constant of the Pomeron-Flux-Factor of the proton. For a pure gluonic- or a pure qqbar-Pomeron , respectively: fK = 0.30 +- 0.05 +- 0.09) and (0.56 +- 0.09 +- 0.17) GeV^-2.Comment: 20 pages, 5 Encapsulated Postscript figures, LaTex, Final Version, Physics Letters B (in Pess 1998

Project PROMETHEUS: Design and Construction of a Radio Frequency Quadrupole at TAEK

The PROMETHEUS Project is ongoing for the design and development of a 4-vane radio frequency quadrupole (RFQ) together with its H+ ion source, a low energy beam transport (LEBT) line and diagnostics section. The main goal of the project is to achieve the acceleration of the low energy ions up to 1.5 MeV by an RFQ (352 MHz) shorter than 2 meter. A plasma ion source is being developed to produce a 20 keV, 1 mA H+ beam. Simulation results for ion source, transmission and beam dynamics are presented together with analytical studies performed with newly developed RFQ design code DEMIRCI. Simulation results shows that a beam transmission 99% could be achieved at 1.7 m downstream reaching an energy of 1.5 MeV. As the first phase an Aluminum RFQ prototype, the so-called cold model, will be built for low power RF characterization. In this contribution the status of the project, design considerations, simulation results, the various diagnostics techniques and RFQ manufacturing issues are discussed.Comment: 4 pages, 8 figures, Proceedings of the 2nd International Beam Instrumentation Conference 2013 (IBIC'13), 16-19 Sep 2013, WEPC02, p. 65