Miracle-dz/UniFAR-FTUs huggingface dataset:
Ultralow leakage characteristics of ultrathin gate oxides (/spl sim/3 nm) prepared by anodization followed by high-temperature annealing

The leakage current of an anodic oxide (ANO) is two orders lower than that of a rapid thermal oxide (RTO) due to the negative oxide trapped charges near the metal-ANO interface. Moreover, the ANO's SILC characteristic is different from the RTO's, since the charges might redistribute under a high electrical stress.
Short- or open-circuited dipole parallel to perfect reflector plane and embedded in substrate and acting at resonance

The properties of an open or short-circuited flat resonant dipole parallel to a reflector plane and embedded in a substrate are given. Simple transmission-line model analysis is used. Correct agreement is obtained between theoretical and experimental results, and literal formulas for radiation resistance and bandwidth are thus justified. To a first approximation, the radiation resistance is independent of the substrate, whose effect is to reduce the length and the bandwidth of the radiating dipole.
Trends in the Design, Manufacture and Evaluation of Wind Turbine Blades

Wind turbine blades continue to be the target of technological improvements by the use of better designs, materials, manufacturing, analysis and testing. As the size of turbines has grown over the past decade, designers have restrained the associated growth in blade weight to less than would have been possible through simple scaling-up of past approaches. These past improvements are briefly summarized. Manufacturing trends and design drivers are presented, as are the ways these design drivers have changed. Issues related to blade material choices are described, first for the currently dominant glass fibre technology and then for the potential use of carbon fibres. Some possible directions for future blade design options are presented, namely new planforms, aerofoils and aeroelastic tailoring. The significant improvement in sophistication of stress analysis and full-scale blade testing are also discussed. Copyright © 2003 John Wiley & Sons, Ltd.
Simulation of an intermodal container center served by air, rail, and truck

SUMMARY This paper presents a simulation model to evaluate the operations of the container facility at the International Intermodal Center in Huntsville, AL. The simulation was used to determine if throughput can satisfy anticipated demand and if sufficient resources are available to meet anticipated growth in demand. The current throughput of the intermodal center can be met with considerably fewer resources than originally estimated and with no reduction in container throughput. Furthermore, the container throughput can be increased considerably without any deterioration in entity times at the terminal. Included in the paper are a description of the conceptual framework, the simulation model written in ProcessModel, an analysis of the simulation results, and conclusions. Copyright # 2010 John Wiley & Sons, Ltd.
Twisting and annealing optical fiber for current sensors

We demonstrate that twisting a fiber a few turns per meter before it is annealed largely eliminates the residual linear birefringence. This dramatically improves the yield of annealed coils used for current sensing and makes it possible to use fibers that previously had large residual linear birefringence. Twisting the fiber is effective because the residual birefringence, associated with core ellipticity, is reduced to near zero by twisting. A theoretical model of the twisted and annealed fiber current sensor is compared to experimental data. We also show good temperature stability for a sensor made with this new technique.
Chipless UWB RFID Tag Detection Using

The basic theory of operation of ultrawideband radio identification systems is explained in this letter. An experimental setup based on an ultrawideband radar working as a reader is proposed to measure time-coded tags. A method based on the Continuous Wavelet Transform is developed in order to overcome detection problems associated to a low signal-to-noise ratio at the receiver. Experimental results obtained with the ultrawideband radar and using an ultrawideband antenna connected to a delay line to emulate a tag are presented. A good improvement is achieved with this processing method.
Transparência de Domínios: maior auditabilidade para serviços de Transparência de Certificados

A autenticação na Internet depende criticamente das Autoridades Certificadoras (Certificate Authorities – CAs), de forma que é essencial verificar a operação correta das CAs. Nesse contexto, a iniciativa conhecida como Transparência de Certificados (Certificate Transparency – CT) foi criada com o objetivo de facilitar a verificação das CAs. Em particular, utilizando CT, é possível identificar eventuais certificados fraudulentos emitidos pelas CAs. No entanto, os serviços disponíveis atualmente para realizar essa identificação já se mostraram pouco confiáveis, retornando por vezes resultados incompletos. Este artigo apresenta uma ferramenta que implementa o conceito de Transparência de Domínios (Domain Transparency – DT), utilizando estruturas de dados verificáveis para oferecer uma alternativa confiável a esses serviços.
Artical compound eyes { dieren t concepts and their application to ultra at image acquisition sensors

Two dieren t approaches for ultra at image acquisition sensors on the basis of articial compound eyes are examined. In apposition optics the image reconstruction is based on moir e{ or static sampling while the superposition eye approach produces an overall image. Both types of sensors are compared with respect to theoretical limitations of resolution, sensitivity and system thickness. Explicit design rules are given. A paraxial 3x3 matrix formalism is used to describe the arrangement of three microlens arrays with dieren t pitches to nd rst order parameters of articial superposition eyes. The model is validated by analysis of the system with raytracing software. Measurements of focal length of anamorphic reo w lenses, which are key components of the superposition approach, under oblique incidence are performed. For the second approach, the articial apposition eye, a rst demonstrator system is presented. The monolithic device consists of a UV{replicated reo w microlens array on a thin silica{substrate with a pinhole array in a metal layer on the backside. The pitch of the pinholes diers from the lens array pitch to enable an individual viewing angle for each channel. Imaged test patterns are presented and measurements of the angular sensitivity function are compared to calculations using commercial raytracing software.
Agricultural and land commercialization – feminist and rights perspectives

ABSTRACT The article introduces the Forum on Commercializing Agriculture/Reorganizing Gender, which reports findings from DEMETER project, a collaboration of scholars from Cambodia, Ghana and Switzerland. The project examines how agriculture and food security policies have advanced or hindered gender equality and the right to food; analyzes the role of human rights-based accountability mechanisms in this; and maps gendered changes in livelihoods in situated contexts. We offer a literature review on governance of the international food system from a gender and rights perspective, and on the gendered political economy of agrarian change. We relate the contributions of the Forum to existing literature and preview their findings.
An Efficient Energy Adaptive Clustering LEACH in Wireless Sensor Network

Wireless sensor network (WSN) is an emerging class of systems made possible by cheap hardware, advanced programming tools, complex algorithms, long lasting power sources and energy efficient radio interfaces. Wireless sensor network is a new paradigm in designing fault tolerant mission critical systems, to enable varied applications like threat detection, environmental monitoring, traditional sensing and actuation and much more. The algorithmic approach to WSN differentiates itself from the protocol approach by the fact that the mathematical models used are more abstract, more general, but sometimes less realistic than the models used for protocol design. Experimental results prove that the scheme can get better effect.
Sustainability, Crossdisciplinarity and Higher Education--From an Agronomic Point of View.

Nowadays, there is a growing conviction (at least in rhetoric) that sustainability is an idea whose time has come with education being a critical component in the transition towards a sustainable future. In the field of higher agricultural education, systemic approaches have, among others, triggered a lively dialogue. Topics include the challenge of sustainable agricultural development, the understanding of agriculture as the interface between people and their environment, integrated curricula (i.e. multi- inter- and trans-disciplinary approaches), etc. Such powerful debates have (sometimes radical) consequences for the whole curriculum design, i.e. the nature of goals, content (knowledge), and processes (learning methodologies). However, the still dominant scientific paradigm of reductionism, the strong traditions of disciplines and the prevailing approach to agricultural development impede changes towards a new educational paradigm in higher education. Nonetheless, such a new paradigm should be supported if universities are to keep pace in a changing world.
Optimización Termoeconómica y Ambiental usando Algoritmos Genéticos Multiobjetivo

This paper presents a multiobjective analysis including variables of the environment of the energy system which is conditioned by the use of solid fuels, for this reason the analysis includes the external characteristics of the resource (fuel) of residue (ash) and the product (electricity/steam). The energy system used is Termocesar, a Colombian process for generating electricity from carbon. Three functions named thermoeconomic objective function, technology objective function and environmental objective function, are analyzed to establish the best location of the energy The genetic algorithm method is used for the optimization of the system. The results were analyzed for nine combinations of weights and show that for most of the cases the optimum includes coals from the Department of Cesar in Colombia.
Overview of Development of P-Cares: Probabilistic Computer Analysis for Rapid Evaluation of Structures.

Brookhaven National Laboratory (BNL) undertook an effort to revise the CARES (Computer Analysis for Rapid Evaluation of Structures) program under the auspices of the US Nuclear Regulatory Commission (NRC). The CARES program provided the NRC staff a capability to quickly check the validity and/or accuracy of the soil-structure interaction (SSI) models and associated data received from various applicants. The aim of the current revision was to implement various probabilistic simulation algorithms in CARES (referred hereinafter as P-CARES [1]) for performing the probabilistic site response and soil-structure interaction (SSI) analyses. This paper provides an overview of the development process of P-CARES, including the various probabilistic simulation techniques used to incorporate the effect of site soil uncertainties into the seismic site response and SSI analyses and an improved graphical user interface (GUI).
Investigation of a new AC electrical machine winding

A new winding for an AC three-phase electrical machine designed in accordance with novel principles has a high winding coefficient and a low harmonic content. The winding can be manufactured in a single layer and technological short pitch. Either high efficiency can be obtained or raw materials can be saved without worsening overall performance. The structure of this winding is described with two detailed examples. Tests of prototype machines show that experimental results correspond well with theoretical results. Analysis of the MMF harmonics shows that the harmonic content is further reduced by the new winding. The test results also indicate that there is no overheating under normal operation.
M-cell Targeting Acid-resistant Oral Vaccine Delivery for Immunization Against Hepatitis B Infection Using Cationic Solid Lipid Nanoparticles

Background: Viral infection caused by Hepatitis B is transmitted by permucosal or parenteral exposure and also one of the prime causes of hepatocellular carcinoma and liver cirrhosis. Objectives: M-cell targeting acid-resistant oral vaccine delivery have been formulated for immunization against Hepatitis B infection. Methods: Cationic solid lipid nanoparticles (cSLNs) were prepared utilizing solvent injection technique. Hepatitis B surface antigen (HBsAg) loaded alginate coated cSLNs were anchored with lipopolysaccharide (LPS). SDS-PAGE was performed to evaluate acid degradation protection of prepared formulation. Induction of immunity produced by prepared nanoparticle for Hepatitis B was determined on female Balb/c mice followed by ELISA assays for assessing anti-HBsAg IgG/IgA antibodies in mucosal fluids. Results: Sustained release of HBsAg (60.66 %) has been exhibited from alginate coated cSLNs in comparison to cSLNs without alginate coating (97.72 %) after 48 h. The production of anti-HBs titer in intestinal, salivary and vaginal secretions was 3.41 IU/ml, 3.1 IU/ml and 2.51 IU/ml respectively in comparison to the control group. Integrity of the M-cells has been maintained after binding with SLN, and oral administration delivered the antigen to the desired site of gut. Conclusion: It was found effective in producing antibodies in mucosal immunization against Hepatitis B virus. So, this formulation could be used as a promising alternative preexisting vaccine to prevent Hepatitis B infection.
Simulated Impacts of Tropopause‐Overshooting Convection on the Chemical Composition of the Upper Troposphere and Lower Stratosphere

Tropopause‐overshooting convection transports air from the lower troposphere to the upper troposphere and lower stratosphere (UTLS) where the resulting chemistry and mixing of trace gases can modify the radiation budget. While recent work has examined output from model simulations as well as aircraft and satellite observations of the impacts of tropopause‐overshooting convection on UTLS composition, the range of potential impacts and their dependence on characteristics of storms and their environments is not known. Here, two 10‐day periods, one representative of springtime convection and one representative of summertime convection, were simulated with the Weather Research and Forecasting (WRF) model with Chemistry to examine the range of UTLS composition impacts from tropopause‐overshooting convection. Overall, springtime convection has a larger impact on UTLS composition than summertime convection, with a net effect of increasing water vapor (H2O) in the lower stratosphere and increasing ozone (O3) in the upper troposphere. Springtime convection frequently increases the domain average H2O mixing ratio in the lowermost stratosphere by over 20% while changes in stratospheric H2O from summertime convection are much lower (∼7%–11% increase), reflecting a dependence of the maximum possible H2O increase on UTLS temperature. Increases in upper troposphere O3 mixing ratios span the range 8%–19% from springtime convection and are minimal from summertime convection. Changes in the composition of the UTLS from tropopause‐overshooting convection are largely dependent on the height and temperature of the tropopause, with the largest changes being in environments with relatively low tropopause heights between 11 and 13 km (typical of springtime environments in the United States).
Pulse width modulated inverter with current control

Implementation of a 3-phase pulse width modulated inverter with controlled current is presented, using a 3-phase bridge based on n-channel power MOSFETs, Hall effect current sensors and a digital to analog (D/A) interface. The current control is performed by a hysteresis controller. The system's key characteristic is its easy and economic implementation based on commercial components, giving as a result a system that can be used as an aid for the development and teaching of control systems for induction motors or for AC motors in general.
A EDUCAÇÃO NO CONTEXTO DA PANDEMIA DO COVID 19: CONTRIBUIÇÕES E DESAFIOS

Os impactos gerados pela pandemia do covid-19 nos anos de 2020 e 2021, fez com que o meio educacional mudasse todo o cenário do ensino, passando a atuar diretamente com o modelos de ensino aliados às plataformas digitais. A pergunta que norteou nossa pesquisa questiona: Será que os modelos de ensino trabalhados em contexto de aprendizagem de ambientes não formalizados, em que os alunos estudam online, é viável, como referencial de aprendizagem? Foi isso que nos propusemos investigar. Partindo de uma análise teórica e conceptual sobre os modelos de ensino, entendido enquanto concepção, organização e estruturação do processo de ensino aprendizagem, analisam-se as percepções que diferentes sujeitos têm acerca dos modelos de ensino que se realizam em contexto de aprendizagem online e em ambientes não formalizados. Os dados empíricos provêm da aplicação de questionários distribuídos online e da realização de entrevistas semiestruturadas. Foram inquiridas 31 pessoas e entrevistadas 4, todas adultas com um perfil acadêmico diverso. Conclui-se o modelo de ensino hibrido é uma opção que necessita de estrutura, preparação e acompanhamento dos profissionais de ensino. E muitos são os esforços já percorridos, mas os dados revelam a necessidade de atenção especial aos elementos de referência para a leitura da construção de um projeto pedagógico voltado para a formação, mediação, autonomia, comprometimento, e estruturação na qualidade do ensino.
NIA-Shaheen (CIM-04-10): A high-yielding, drought-tolerant wheat variety

Abstract The wheat variety NIA-Shaheen (CIM-04-10) has high grain yield and modern plant architecture. It has wide adaptability, increased tiller production, bold grains, high starch and protein content, and good tolerance to disease and environmental stresses, particularly water stress. NIA-Shaheen has high yield potential (7184 kg ha-1).
A Visual SLAM Robust against Dynamic Objects Based on Hybrid Semantic-Geometry Information

A visual localization approach for dynamic objects based on hybrid semantic-geometry information is presented. Due to the interference of moving objects in the real environment, the traditional simultaneous localization and mapping (SLAM) system can be corrupted. To address this problem, we propose a method for static/dynamic image segmentation that leverages semantic and geometric modules, including optical flow residual clustering, epipolar constraint checks, semantic segmentation, and outlier elimination. We integrated the proposed approach into the state-of-the-art ORB-SLAM2 and evaluated its performance on both public datasets and a quadcopter platform. Experimental results demonstrated that the root-mean-square error of the absolute trajectory error improved, on average, by 93.63% in highly dynamic benchmarks when compared with ORB-SLAM2. Thus, the proposed method can improve the performance of state-of-the-art SLAM systems in challenging scenarios.
Outage Trade-Offs Between Full/Half-Duplex Relaying for NOMA Aided Multicarrier Cooperative D2D Communications System

ABSTRACT Non-orthogonal multiple access (NOMA) and full-duplex (FD) have recently emerged as a potential candidate for the fifth-generation and beyond (B5G) cellular networks with the target of increasing spectral efficiency and guaranteeing the quality-of-services (QoS). This paper proposes an orthogonal frequency division multiple access (OFDMA) based FD cooperative device-to-device (C-D2D) communications system, wherein a D2D transmitter (DT) acts as an FD relay to support simultaneous bidirectional communication between a base station (BS) and a cellular user (CU). In addition, a power splitting protocol using NOMA is incorporated for the FD C-D2D system to share the resources between the cellular and D2D user. Further, the successive interference cancellation (SIC) is used to decode the signals, while self-interference suppression (SIS) is employed at DT to mitigate self-interference (SI). The analytical expressions for achievable rates of the cellular and D2D links and their outage probabilities for the FD and half-duplex (HD) systems are derived. Outage trade-offs between FD/HD relaying have been analyzed. Results show that the proposed model enhances the overall outage performance of the cellular and D2D users. Moreover, for high cellular outage constraints, DT as an FD relay outperforms the conventional HD C-D2D communications system wherein DT acts as an HD relay.
A Combinatorial Model Based on Users’ Interest in Order to Improve the Performance of the Recommender Systems

Nowadays there is an increasing interest in the recommender systems, which recommend various items such as music, film, book, etc. Applying these systems which needs customers recognition, we lead to some suitable and high quality services in order to provide and sell some products aiming at the increase of customer satisfaction, the increase of the rate of future returns, the increase of customer loyalty, acquiring highest possible level of sale and to gain the credit and validity. Two steps are presented here to provide recommender system; the first step is providing ranked items to users, based on a user’s choice of items and identifying common interests of him and other users. In order to improve the performance of the system, we provide a combinatorial method to combine methods of the first step.
ANÁLISIS DE ROTURA DE DIQUE DURANTE EL HURACÁN KATRINA 2005

El huracán Katrina fue el desastre natural más costoso y uno de los más mortales en la historia de los Estados Unidos. Muchos diques que circundan la ciudad de Nueva Orleans fueron afectados como resultado del evento de tormenta masivo. Se produjeron muchas fallas en los diques, incluidos el canal de la calle 17, el canal industrial, el canal de la avenida London y el canal de navegación del puerto interior (IHNC). Este trabajo de investigación tuvo como objetivo central evaluar el modo de falla del sector sur en la orilla este del dique de tierra IHNC. Se utilizaron programas de cómputo Seep/W y Slope/W de Geostudio para estimar el flujo transiente y estabilidad del dique para determinación del evento crítico. El análisis de estabilidad se realizó mediante el método riguroso de Spencer. Los principales resultados encontrados nos indican que las falla por tubificación no se ha producido debido a que el gradiente máximo de salida es menor que el gradiente crítico del suelo. También se pudo encontrar que el factor de seguridad para la estabilidad semi-rotacional del dique es de 1,24. Finalmente; a partir de fotos de erosión y métodos semiempiricos se estimó 3 pies de socavación al pie del dique, lo que permite obtener un factor de seguridad contra el vuelco F.S= 0,94, obteniéndose además que para la misma socavación, la estabilidad por traslación fue controlado, obteniéndose un FS = 1,42. En base a los resultados obtenidos, se concluye que el modo crítico de falla debido a la erosión es el de volcamiento.