Exploring The Universe With The Atacama Cosmology Telescope: Polarization-Sensitive Measurements Of The Cosmic Microwave Background

Over the past twenty-five years, observations of the Cosmic Microwave Background (CMB) temperature fluctuations have served as an important tool for answering some of the most fundamental questions of modern cosmology: how did the universe begin, what is it made of, and how did it evolve? More recently, measurements of the faint polarization signatures of the CMB have offered a complementary means of probing these questions, helping to shed light on the mysteries of cosmic inflation, relic neutrinos, and the nature of dark energy. A second-generation receiver for the Atacama Cosmology Telescope (ACT), the Atacama Cosmology Telescope Polarimeter (ACTPol), was designed and built to take advantage of both these cosmic signals by measuring the CMB to high precision in both temperature and polarization. The receiver features three independent sets of cryogenically cooled optics coupled to transition-edge sensor (TES) based polarimeter arrays via monolithic silicon feedhorn stacks. The three detector arrays, two operating at 149 GHz and one operating at both 97 and 149 GHz, contain over 1000 detectors each and are continuously cooled to a temperature near 100 mK by a custom-designed dilution refrigerator insert. Using ACT\u27s six meter diameter primary mirror and diffraction limited optics, ACTPol is able to make high-fidelity measurements of the CMB at small angular scales (l ~ 9000), providing an excellent complement to Planck. The design and operation of the instrument are discussed in detail, and results from the first two years of observations are presented. The data are broadly consistent with /\CDM and help improve constraints on model extensions when combined with temperature measurements from Planck

Evolución de soluciones low-code: estudio

Las soluciones low-code han surgido como alternativas revolucionarias en el desarrollo de software, permitiendo crear aplicaciones funcionales sin conocimientos profundos de programación. No obstante, estas soluciones son poco conocidas todavía; no se sabe con exactitud el nivel que pueden alcanzar y si todo aquello que prometen se cumple. Este trabajo de fin de grado (TFG) tiene como principal objetivo explorar su evolución e impacto en el ciclo de desarrollo de software, comprendiendo su transformación y accesibilidad. Se investigarán sus ventajas, limitaciones y potencial para fomentar la agilidad y productividad en el desarrollo de software. Para ello se llevará a cabo un amplio estudio basado en revisión literaria y análisis empírico de casos reales. Se espera ampliar el conocimiento existente y proporcionar información valiosa para profesionales, líderes empresariales y académicos interesados en aprovechar estas soluciones.Low-code solutions have emerged as revolutionary alternatives in software development, making it possible to create functional applications without in-depth programming knowledge. However, these solutions are still relatively unknown, and the extent to which they can deliver on their promises remains uncertain. The main objective of this Final Degree Project (TFG) is to explore the evolution and impact of Low-code solutions on the software development cycle, understanding their transformation and accessibility. We will investigate their advantages, limitations, and potential to promote agility and productivity in software development. To achieve this, an extensive study will be conducted, including literature review and empirical analysis of real-world cases. The aim is to expand existing knowledge and provide valuable insights for professionals, business leaders, and academics interested in leveraging these solutions.Grado en Ingeniería Telemátic

Research on the behavior of certain oilseed rape varieties in Gătaia area

The study monitored the behavior of some rapeseed varieties in terms of oilseed rape yield and for their introduction in the culture. The study was conducted over a period of three years 2008-2010, in the Gătaia area of Timis county. For testing five varieties of oilseed rape (Alaska, Attila, Triangle, Digger, Milena) were selected .The soil of the experimental field was a vertic-preluvosol, medium clay loam/loam clay on medium fine clays. In the first year of experimentation (2008), the smallest oilseed rape yields have been recorded due to important deviations in this area. Under these conditions the oilseed rape yield ranged between 569 kg/ha and 732 kg/ha. The oilseed rape yield level of the second year of study (2009) ranged between 984 kg/ha and 1142 kg/ha, slightly higher than the previous year. In 2008 the highest oilseed rape yield of 732 kg/ha was obtained from variety Milena, followed by Alaska with a yield of 640 kg/ha, while the lowest oil-seed rape yield (569 kg/ha) was obtained from the variety Digger. In 2009 the highest oilseed rape yield (1149 kg/ha) was obtained from the variety Triangle, and the lowest oil-seed rape crop (984 kg / ha) was obtained from variety Alaska. Research results show that by the introduction of the most suitable varieties in the culture, respecting the fertilizer recovering capacity of the varieties at the determination of the fertilization conditions and respecting the zonal optimum planting period, rape is a crop with real opportunities for expansion in the reference areas

Ecologic and biologic agricultural systems

Ecologic agriculture has a large contribution to long lasting economic development and plays an important role in improving the environment conditions, preserving the soil, improving water quality, biodiversification and nature protection. Ecologic agriculture may move forward in rural economy and may make it viable by extending economic activities with great added value and by generating working places in rural areas. The aim of this paper is to present biological and ecological farming systems in Europe, and Romania. The objectives of this study were presenting ecological agriculture and biological systems and their evolution, the benefits and drawbacks to extensive and intensive agriculture. We also briefly present a new agricultural and permacultural system - an approach to agriculture in terms of harmony with nature

The agricultural system of the Armenis township, Caras Severin County

The purpose of this paperwork is to present a common agriculture in Armeniș with the land, crop structure and companies in the agriculture of the village, soil types and subtypes of the Armeniș township area, environmental factors that influence these traits, the study of important processes and soils of the area. The objectives of this study were to present the agricultural system and the improvement of the city and its possibilities. In the context of a perpetue changing agriculture we must always watch the opportunities that appear all the times. EU founds and programs are at ours hand, we just need a good implement of this agricultural programs in field, because otherwise we will loose the money who are so needed in this part of country. As research materials and methods were field observations, discussions with farmers and agricultural engineers from Armeniș township. The results obtained were identified agro-zootechnical systems with opportunities for improvement

Ecologic and biologic agricultural systems

Ecologic agriculture has a large contribution to long lasting economic development and plays an important role in improving the environment conditions, preserving the soil, improving water quality, biodiversification and nature protection. Ecologic agriculture may move forward in rural economy and may make it viable by extending economic activities with great added value and by generating working places in rural areas. The aim of this paper is to present biological and ecological farming systems in Europe, and Romania. The objectives of this study were presenting ecological agriculture and biological systems and their evolution, the benefits and drawbacks to extensive and intensive agriculture. We also briefly present a new agricultural and permacultural system - an approach to agriculture in terms of harmony with nature

The agricultural system of the Armenis township, Caras Severin County

The purpose of this paperwork is to present a common agriculture in Armeniș with the land, crop structure and companies in the agriculture of the village, soil types and subtypes of the Armeniș township area, environmental factors that influence these traits, the study of important processes and soils of the area. The objectives of this study were to present the agricultural system and the improvement of the city and its possibilities. In the context of a perpetue changing agriculture we must always watch the opportunities that appear all the times. EU founds and programs are at ours hand, we just need a good implement of this agricultural programs in field, because otherwise we will loose the money who are so needed in this part of country. As research materials and methods were field observations, discussions with farmers and agricultural engineers from Armeniș township. The results obtained were identified agro-zootechnical systems with opportunities for improvement

The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and Parameters

We present the temperature and polarization angular power spectra measured by the Atacama Cosmology Telescope Polarimeter (ACTPol). We analyze night-time data collected during 2013-14 using two detector arrays at 149 GHz, from 548 deg$^2$ of sky on the celestial equator. We use these spectra, and the spectra measured with the MBAC camera on ACT from 2008-10, in combination with Planck and WMAP data to estimate cosmological parameters from the temperature, polarization, and temperature-polarization cross-correlations. We find the new ACTPol data to be consistent with the LCDM model. The ACTPol temperature-polarization cross-spectrum now provides stronger constraints on multiple parameters than the ACTPol temperature spectrum, including the baryon density, the acoustic peak angular scale, and the derived Hubble constant. Adding the new data to planck temperature data tightens the limits on damping tail parameters, for example reducing the joint uncertainty on the number of neutrino species and the primordial helium fraction by 20%.Comment: 23 pages, 25 figure

The Simons Observatory: Beam characterization for the Small Aperture Telescopes

We use time-domain simulations of Jupiter observations to test and develop a beam reconstruction pipeline for the Simons Observatory Small Aperture Telescopes. The method relies on a map maker that estimates and subtracts correlated atmospheric noise and a beam fitting code designed to compensate for the bias caused by the map maker. We test our reconstruction performance for four different frequency bands against various algorithmic parameters, atmospheric conditions and input beams. We additionally show the reconstruction quality as function of the number of available observations and investigate how different calibration strategies affect the beam uncertainty. For all of the cases considered, we find good agreement between the fitted results and the input beam model within a ~1.5% error for a multipole range l = 30 - 700.Comment: 22 pages, 21 figures, to be submitted to Ap