Development of CMOS Pixel Sensors fully adapted to the ILD Vertex Detector Requirements

CMOS Pixel Sensors are making steady progress towards the specifications of the ILD vertex detector. Recent developments are summarised, which show that these devices are close to comply with all major requirements, in particular the read-out speed needed to cope with the beam related background. This achievement is grounded on the double- sided ladder concept, which allows combining signals generated by a single particle in two different sensors, one devoted to spatial resolution and the other to time stamp, both assembled on the same mechanical support. The status of the development is overviewed as well as the plans to finalise it using an advanced CMOS process.Comment: 2011 International Workshop on Future Linear Colliders (LCWS11), Granada, Spain, 26-30 September 201

Status of the Micro Vertex Detector of the Compressed Baryonic Matter Experiment

The CBM experiment will investigate heavy-ion collisions at beam energies from 8 to 45 AGeV at the future accelerator facility FAIR. The goal of the experiment is to study the QCD phase diagram in the vincinity of the QCD critical point. To do so, CBM aims at measuring rare probes among them open charm. In order to identify those rare and short lived particles despite the rich combinatorial background generated in heavy ion collisions, a micro vertex detector (MVD) providing an unprecedented combination of high rate capability and radiation hardness, very light material budget and excellent granularity is required. In this work, we will discuss the concept of this detector and summarize the status of the R&D

Small-Scale Readout Systems Prototype for the STAR PIXEL Detector

A prototype readout system for the STAR PIXEL detector in the Heavy Flavor Tracker (HFT) vertex detector upgrade is presented. The PIXEL detector is a Monolithic Active Pixel Sensor (MAPS) based silicon pixel vertex detector fabricated in a commercial CMOS process that integrates the detector and front-end electronics layers in one silicon die. Two generations ofMAPS prototypes designed specifically for the PIXEL are discussed. We have constructed a prototype telescope system consisting of three small MAPS sensors arranged in three parallel and coaxial planes with a readout system based on the readout architecture for PIXEL. This proposed readout architecture is simple and scales to the size required to readout the final detector. The real-time hit finding algorithm necessary for data rate reduction in the 400 million pixel detector is described, and aspects of the PIXEL system integration into the existing STAR framework are addressed. The complete system has been recently tested and shown to be fully functional

Research and Design of a Routing Protocol in Large-Scale Wireless Sensor Networks

无线传感器网络，作为全球未来十大技术之一，集成了传感器技术、嵌入式计算技术、分布式信息处理和自组织网技术，可实时感知、采集、处理、传输网络分布区域内的各种信息数据，在军事国防、生物医疗、环境监测、抢险救灾、防恐反恐、危险区域远程控制等领域具有十分广阔的应用前景。 本文研究分析了无线传感器网络的已有路由协议，并针对大规模的无线传感器网络设计了一种树状路由协议，它根据节点地址信息来形成路由，从而简化了复杂繁冗的路由表查找和维护，节省了不必要的开销，提高了路由效率，实现了快速有效的数据传输。 为支持此路由协议本文提出了一种自适应动态地址分配算——ADAR（AdaptiveDynamicAddre...As one of the ten high technologies in the future, wireless sensor network, which is the integration of micro-sensors, embedded computing, modern network and Ad Hoc technologies, can apperceive, collect, process and transmit various information data within the region. It can be used in military defense, biomedical, environmental monitoring, disaster relief, counter-terrorism, remote control of haz...学位：工学硕士院系专业：信息科学与技术学院通信工程系_通信与信息系统学号：2332007115216

Surrénalectomies

La surrénalectomie est une intervention qui consiste à retirer une ou les deux surrénales lors de la sécrétion anormale d’une des trois hormones physiologiquement produites par ces glandes. Le diagnostic médical doit permettre de déterminer si la dérive concerne la sécrétion de cortisol (syndrome de Cushing), d’adrénaline (phéochromocytome) ou d’aldostérone (hyperaldostéronisme). Cette détermination médicale permet de préparer l’animal en amont de l’acte chirurgical (trilostane, alpha-bloquants, potassium) pour l’emmener au bloc opératoire dans les meilleures conditions possibles. Le scanner est l’imagerie de choix qui permet de déterminer la faisabilité et les risques chirurgicaux engagés. L’acte chirurgical consiste en une dissection soignée de la tumeur en épargnant les vaisseaux majeurs et, si possible, en respectant sa capsule. La veine cave caudale est régulièrement embolisée par un thrombus tumoral au travers de la veine phrénico-abdominale qui draine la glande. L’équipe chirurgicale et anesthésique doit être préparée à son extraction par contrôle du débit sanguin dans la veine cave caudale, incision et suture de celle-ci. Dépassées les complications per- et postopératoires (complications hémorragiques, troubles cardiovasculaires et thrombo-emboliques, pancréatite), la surrénalectomie, quand elle est techniquement possible au moment du diagnostic, est la prise en charge optimum en termes de qualité de vie et de longévité lors de tumeur surrénalienne.Une surrénalectomie doit être soigneusement préparée. Il est nécessaire de déterminer quel trouble endocrinien est provoqué par la lésion surrénalienne, et d’anticiper les conséquences de l’acte pour que l’équipe chirurgicale soit prête à réaliser une dissection délicate pouvant nécessiter une veinotomie de la veine cave caudale

Inferring Changes in Summertime Surface Ozone-NOx-VOC Chemistry over U.S. Urban Areas from Two Decades of Satellite and Ground-Based Observations

Urban ozone (O3) formation can be limited by NOx, VOCs, or both, complicating the design of effective O3 abatement plans. A satellite-retrieved ratio of formaldehyde to NO2 (HCHO/NO2), developed from theory and modeling, has previously been used to indicate O3 formation chemistry. Here, we connect this space-based indicator to spatiotemporal variations in O3 recorded by on-the-ground monitors over major U.S. cities. High-O3 events vary nonlinearly with OMI HCHO and NO2, and the transition from VOC-limited to NOx-limited O3 formation regimes occurs at higher HCHO/NO2 value (3 to 4) than previously determined from models, with slight intercity variations. To extend satellite records back to 1996, we develop an approach to harmonize observations from GOME and SCIAMACHY that accounts for differences in spatial resolution and overpass time. Two-decade (1996-2016) multisatellite HCHO/NO2 captures the timing and location of the transition from VOC-limited to NOx-limited O3 production regimes in major U.S. cities, which aligns with the observed long-term changes in urban-rural gradient of O3 and the reversal of O3 weekend effect. Our findings suggest promise for applying space-based HCHO/NO2 to interpret local O3 chemistry, particularly with the new-generation satellite instruments that offer finer spatial and temporal resolution

Factors associated with excessively lengthy treatment of tuberculosis in the eastern Paris region of France in 2004.

International audienceOne-third of TB patients received excessively long treatment, reflecting inadequate awareness of management guidelines or unwillingness to implement them