Precision Muon Tracking Detectors for High-Energy Hadron Colliders

Small-diameter muon drift tube (sMDT) chambers with 15 mm tube diameter are a cost-effective technology for high-precision muon tracking over large areas at high background rates as expected at future high-energy hadron colliders including HL-LHC. The chamber design and construction procedures have been optimized for mass production and provide sense wire positioning accuracy of better than 10 ?m. The rate capability of the sMDT chambers has been extensively tested at the CERN Gamma Irradiation Facility. It exceeds the one of the ATLAS muon drift tube (MDT) chambers, which are operated at unprecedentedly high background rates of neutrons and gamma-rays, by an order of magnitude, which is sufficient for almost the whole muon detector acceptance at FCC-hh at maximum luminosity. sMDT operational and construction experience exists from ATLAS muon spectrometer upgrades which are in progress or under preparation for LHC Phase 1 and 2

Rompiendo la monotonía del día a día en la Málaga moderna

An extraordinary event alters the daily occupation of a city as that of Malaga. The witnesses of a passional crime report meticulously the incidents of the same one. Confirming the different testimonies there are traced the mobiles, the subjects and the circumstances that intervene directly or indirectly in this event, highlighting other collateral aspects as the collective mentality of the persons from Malaga before the death. The feminine look uses as conductive thread to compile information about a criminal act that has not come out in the annals of the city.Un suceso extraordinario altera el quehacer cotidiano de una ciudad como la de Málaga. Los testigos de un crimen pasional relatan minuciosamente las incidencias del mismo. Contrastando los diferentes testimonios se rastrean los móviles, los sujetos y las circunstancias que intervienen directa o indirectamente en este suceso, resaltando otros aspectos colaterales como la mentalidad colectiva de los malagueños ante la muerte. La mirada femenina sirve de hilo conductor para recopilar información sobre un acto criminal que no ha trascendido en los anales de la ciudad

Alarde en Ronda y su tierra (Año 1691) (1ª parte)

Durante las últimas décadas del Siglo XVII se abatían serios problemas para la integridad de la monarquía española. La falta de sucesión de Carlos II, último monarca de la Casa de Austria, impulsó a las potencias europeas a intervenir en la política hispana. Simultáneamente, el Sultán de Marruecos Muley Ismail, iniciaba el ataque a las plazas españolas con el objetivo de eliminar la presencia española en el Norte de África. Ante este peligro en la ciudad de Ronda se convoca el año 1691 un alarde para conocer las disponibilidades de la milicia urbana.During last decades of XVII Century, serious problems hung over the Spanish Monarchy. Lack of sucession of Carlos II, last monarch from the House of Austria, impelled the great european powers to interfere in spanish policy. At the same time, the Sultan of Morocco, Muley Ismail, started an attack against the spanish fortresses to remove spanish presence in North Africa. Due to these hazards, a military deployment (alarde) was convoked in the year 1691 at Ronda, in order to find out the availability of urban militia

Performance of a First-Level Muon Trigger with High Momentum Resolution Based on the ATLAS MDT Chambers for HL-LHC

Highly selective first-level triggers are essential to exploit the full physics potential of the ATLAS experiment at High-Luminosity LHC (HL-LHC). The concept for a new muon trigger stage using the precision monitored drift tube (MDT) chambers to significantly improve the selectivity of the first-level muon trigger is presented. It is based on fast track reconstruction in all three layers of the existing MDT chambers, made possible by an extension of the first-level trigger latency to six microseconds and a new MDT read-out electronics required for the higher overall trigger rates at the HL-LHC. Data from $pp$-collisions at $\sqrt{s} = 8\,\mathrm{TeV}$ is used to study the minimal muon transverse momentum resolution that can be obtained using the MDT precision chambers, and to estimate the resolution and efficiency of the MDT-based trigger. A resolution of better than $4.1\%$ is found in all sectors under study. With this resolution, a first-level trigger with a threshold of $18\,\mathrm{GeV}$ becomes fully efficient for muons with a transverse momentum above $24\,\mathrm{GeV}$ in the barrel, and above $20\,\mathrm{GeV}$ in the end-cap region.Comment: 6 pages, 11 figures; conference proceedings for IEEE NSS & MIC conference, San Diego, 201

Ample Provision: A Preliminary Study Relating Budget Composition and High School Graduation Rates in Select Washington State Public School Districts

How to allocate scarce resources for an optimal outcome is of keen interest to those who set the budgets in public education. Simply throwing money at schools is not enough; it is important that money is spent where it will do the most good. This study considers Washington State public school districts and examines how the share of per-student expenditures in seven budget categories relates to on-time high school graduation rates. It is an investigative study, exploring whether there is enough evidence to merit further, more in-depth research. Using budget and graduation information from academic years 1997-98 through 2016-17 for a representative sample of 63 districts, I estimated several dynamic panel models. From these I identified which budget categories most heavily impact graduation rates, and over what time horizon the impacts are apparent. I found no significant correlation and concluded that this would not be a fruitful avenue for further research

Coordinating general classroom reading instruction with Reading Recovery instruction

Our Nation is at risk. Our once unchallenged preeminence in commerce, industry, science, and technological innovation is being overtaken by competitors throughout the world (The National Commission on Excellence in Education, 1983, p. 5). 3 These were the opening words published in a 1983 letter to the people of the United States entitled, A Nation at Risk: The Imperative for Educational Reform. In 1981, the National Commission on Excellence in Education was created under the direction of the Secretary of Education, T. H. Bell. Its purpose was to investigate issues in America\u27s education, define problems and identify solutions (The National Commission on Excellence in Education, 1983). After examining the central issues, members of the Commission compiled a report and presented it to Secretary Bell and the American people

Exergy Analysis as a Developed Concept of Energy Efficiency Optimized Processes: The Case of Thermal Spray Processes

AbstractGiven the global economic growth and the rapid manufacturing development, the energy and resource efficiency will become an increasingly competitive factor and scope for the companies in the road of sustainability. Among energy efficiency optimization approaches, thermodynamics methodologies contribute toward the improvement of energy efficiency in manufacturing processes. Besides energy balance, exergy has been recently considered as a practical thermodynamics method for system's energy evaluation. From the exergy analysis, merging both exergy efficiency and exergy destruction highlights the energy inefficiencies within a system and provides useful information to the managers and decision makers for prioritizing the improvement potentials. Exergy analysis is generally an applicable method for the comparison of the alternative processes for a given purpose.In this study, thermal spray process techniques (APS, SPS, HVOF, HVSFS) as energy intensive manufacturing processes are analyzed and compared on the basis of exergy and energy analysis methods. For a comprehensive evaluation, energy efficiency as well as exergy efficiency and exergy destruction are proposed as the indicators.This work concludes with a discussion of the advantages of the exergy analysis method in comparison with a conventional energy efficiency evaluation by validation of the results for the case of thermal spray processes