Miracle-dz/UniFAR-FTUs huggingface dataset:
Robótica asistencial y su interacción con entorno en oficinas

En este artículo se describen los fundamentos de los algoritmos de navegación autónoma y manipu­lación empleados para dotar de autonomía al Robot Asistencial de la cun y que pueda ser empleado como asistente en oficinas. Los algoritmos de navegación se basan en técnicas del lugar de las raíces que, mediante la selección de polos y ceros en la zona de movimiento del robot, generan una tra­yectoria libre de obstáculos, lo que permite que el robot se desplace de un lugar a otro sin proble­mas. Para la manipulación de objetos, se plantean algoritmos de movimiento de brazos, cuando el robot está lo suficientemente cerca al objetivo con el que debe trabajar, basados en los parámetros de Denavit-Hartenberg; ahora bien, estos son modificados hacia la evaluación del espacio de trabajo aumentado de los brazos y el uso de trayectorias cartesianas suaves, estas últimas generadas a partir de la configuración del objeto que se desea alcanzar. Gracias a la presentación y discusión de los resultados, es posible concluir que la implementación del robot asistencial es viable y válida.
Coordination and Collaboration in European Research towards Healthy and Safe Nanomaterials

Nanotechnology is becoming part of our daily life in a wide range of products such as computers, bicycles, sunscreens or nanomedicines. While these applications already become reality, considerable work awaits scientists, engineers, and policy makers, who want such nanotechnological products to yield a maximum of benefit at a minimum of social, environmental, economic and (occupational) health cost. Considerable efforts for coordination and collaboration in research are needed if one wants to reach these goals in a reasonable time frame and an affordable price tag. This is recognized in Europe by the European Commission which funds not only research projects but also supports the coordination of research efforts. One of these coordination efforts is NanoImpactNet, a researcher-operated network, which started in 2008 promote scientific cross-talk across all disciplines on the health and environmental impact of nanomaterials. Stakeholders contribute to these activities, notably the definition of research and knowledge needs. Initial discussions in this domain focused on finding an agreement on common metrics, and which elements are needed for standardized approaches for hazard and exposure identification. There are many nanomaterial properties that may play a role. Hence, to gain the time needed to study this complex matter full of uncertainties, researchers and stakeholders unanimously called for simple, easy and fast risk assessment tools that can support decision making in this rapidly moving and growing domain. Today, several projects are starting or already running that will develop such assessment tools. At the same time, other projects investigate in depth which factors and material properties can lead to unwanted toxicity or exposure, what mechanisms are involved and how such responses can be predicted and modelled. A vision for the future is that once these factors, properties and mechanisms are understood, they can and will be accounted for in the development of new products and production processes following the idea of "Safety by Design". The promise of all these efforts is a future with nanomaterials where most of their risks are recognized and addressed before they even reach the market.
Intraoperative monitoring of somatosensory-evoked potential in the spinal cord rectification operation by means of wavelet analysis

Recently there has been a considerable interest in the use of a somatosensory evoked potential (SEP) for monitoring the functional integrity of the spinal cord during surgery such as spinal scoliosis. This paper describes a monitoring system and signal processing algorithms, which consists of 50 Hz mains filtering and a wavelet signal analyzer. Our system allows fast detection of changes in SEP peak latency, amplitude and signal waveform, which are the main parameters of interest during intra-operative procedures.
An Efficient Data Association Algorithm for Single Target Tracking with Multiple Centralized Heterogeneous Sensors

An efficient data association algorithm is presented to track a single target with multiple centralized heterogeneous sensors. The sharing parts of measurements from different sensors are used to accomplish the data association, which utilizes the 2 test match combined with Nearest Neighbor association strategy to depress the dummy measurements. Targetoriginated measurement matched pair will be retained and fused to update the target track. Unscented kalman filter is deployed to target state estimation for both the dynamic and measurement model are nonlinear. Simulations validate the algorithm and conclusions.
Potential Retrofit Methods for Concrete Channel Beam Bridges Using Glass Fiber Reinforced Polymer

The structural response of deteriorated channel beam bridge girders and channel beam bridge decks with and without glass fiber reinforced polymer (GFRP) retrofit is found from design calculations, experimental load testing, and finite element analysis. Two different types of GFRP retrofit materials are investigated including a traditional fabric wrap and a new spray material. The effects of GFRP retrofit on channel beam bridge girder and channel beam bridge structural parameters are summarized and the accuracy of design calculation methods for quantifying structural response of channel beam bridge girders retrofit with GFRP is determined.
EProf : an energy profiler for the iPAQ

Introduction: As the use of portable electronic devices has become increasingly widespread, efforts to extend battery life have become more crucial. Much work has gone toward improving the efficiency of hardware components and recently more emphasis has been placed on software techniques that help conserve energy. Energy profilers help programmers determine what parts of their code are most energy-intensive by correlating energy use with functions or instructions within a program. Being able to see where energy is consumed allows programmers to concentrate on the software hotspots.
Integrated Flex Winding Realisation for 3D PCB Converters

The implementation of flexible printed circuit technology in power magnetic winding design is investigated. At first this implementation is considered as a stand-alone winding technology for discrete magnetic components and thereafter it is applied as an integral winding technology, enabling enhanced manufacturing possibility for an integrated 3D converter concept, discussed herein. Optimization of both the material- and layer usage in the winding stack realization is found to be the key to minimizing the manufacturing cost of such a PCB fabricated winding stack, as well as improving its interconnection reliability. The associated folding pattern of the winding panels, in conjunction with the winding patterns themselves, receive meticulous attention during the proposed winding design method. The manufacturing complexity and cost advantages of using double sided, flexible printed circuit technology to realize a planar winding stack by the proposed folding method, that would otherwise require a substantial number of costly, rigid printed circuit layers, is brought to the forefront. Also the possibility to exploit the parasitic elements of the magnetic component as functional resonant tank elements, using the folding pattern design is investigated. Practical validation of an integrated magnetic component suitable for a 3D PCB converter is presented along with critical evaluation of the results.
Independent tuning of frequency and quality factor of microresonators

This letter reports on a developed approach to control losses in torsional microresonators for applications that require high precision. This methodology is demonstrated through realizing an array of microresonators with independent tuning of both quality factor and resonant frequency. The presented approach enables both boosting and reducing the quality factor of a resonator using proper drive signals to the tuning electrodes. The experimental data demonstrates a tunability of as much as +33% and −37% from the initial quality factor value with negligible frequency change. On the other hand, fine resonant frequency tuning was achieved with a minimal effect on the quality factor.
Dynamic Simulation and Test Verification of PCB with BGA Chipset

Generally, impact and shock to portable electronic products can cause significant functional and physical damage in the form of internal component failure or package-to-board interconnection breakage. Therefore, this paper provides a dynamic simulation of shock impact to investigate the internal stress and strains of a printed circuit board (PCB) with ball grid array (BGA) chipset. The tin balls will be simulated with a minimum element size as 0.0536 mm in LS-DYNA finite element software. The corresponding strains of dynamic analysis on PCB board will be compared with those of the experimental measurements using the strain gauge. Finally, the model established has values of peak strain and impact duration close to those measured in the actual shock test. The comparison results of the experimental and numerical strain show that the smallest difference is 0.70%. Furthermore, we also investigate the signal curves of experimental error source on the accelerometer and strain gauge. The measurement results show that the capabilities of the repetition and stability both the input signals and output signals are excellent. This result provides researchers in relevant fields with an excellent example and model for further study of PCB with BGA chipsets.
Heuristic for a single period single product closed loop supply chain

This paper addresses a single period, single product closed loop supply chain (CLSC) allocation problem. We propose an integer linear programming (ILP) model and a progressive constructive heuristics based on Vogel's approximation method-total opportunity cost (VAM-TOC) method. Trials on a number of datasets have yielded encouraging results.
Effect of fiber and energy in diet on productivity and formation of microbiocenosis in piglets

Today, an important role in the development of pig breeding is given to feeding animals, especially piglets during the transition from milk to vegetable feeding. This crucial period is associated with physiological characteristics of piglet growth and development. Therefore, the problem of developing mixed fodder that gives rise to high weight gain in piglets is relevant for pig farming. The experiments were conducted on piglets aged 15-42 days in Nadezhda farm, Kursk region. The purpose of the research was to increase productivity and form the microbiocenosis in the intestines of piglets. During the study period, barley-wheat mixed fodder was used with additional ingredients: feed fat, alfalfa grass flour and probiotic. Feed fats provide an optimal level of energy for piglets growth. The active substances of alfalfa flour are involved in all metabolic processes in the body, making it effective. Probiotic increases availability and digestibility of feed nutrients. The studies proved that the new composition of SK-3 increased the average daily weight gain by 20.5 %, the gross formation per piglet increased to 21 %. At the same time, survival of animals in the period 15-42 days increased to 100 %. The greatest growth of beneficial intestinal microflora from 107 to 109 CFU/g of feces was observed after feeding experimental piglets with mixed fodder containing grass flour, feed fats and probiotic by day 42. In comparison with the control animals, experimental animals showed a decrease in E. coli - from 107 to 104. The importance of using such ingredients as alfalfa grass flour, feed fats and probiotic in mixed fodder for piglets of 15-42 days of age was revealed. The relevance of the development of new mixed fodder was justified.
"Paroxysmal Supraventricular Tachycardia and Atrial Fibrillation in the Same Patient: What Seems to be the Link?"

PSVT, AF multifocal 60% PSVT 30% tachycardia 10% atrial tachycardia is, AF and atrial flutter SVT to our case above, is it possible for a patient to have an inter-change of rhythms or a conversion of rhythms from PSVT to AF (both different forms of SVT)? If this is the case, then what will be the mechanism involved? ABSTRACT In your clinical practice, have you ever come across a patient with Paroxysmal Supraventricular Tachycardia (PSVT), who also occasionally has attacks of paroxysmal atrial fibrillation (AF), or encountered a patient with PSVT that degenerates into AF? These scenarios are not uncommon. There have been cases as well as reports of these in the literature. The prevalence of these two rhythms or their co-existence have intrigued many clinicians and scientists. To date, there have been some postulations as to the possible mechanisms and pathogenesis involved. This paper discusses in a simplified fashion, what some of these possible mechanisms are, as well as the micro-pathophysiology that may be taking place as clinicians observe these rhythm changes What Seems to be the Link?
An augmented reality interface for multi-robot tele-operation and control

Teams of heterogeneous robots with different dynamics or capabilities can perform a variety of tasks such as multipoint surveillance, cooperative transport and explorations in hazardous environments. However, the operation of these teams of robots by a human operator is a major challenge, particularly in search and rescue applications. This research created a seamlessly controlled multi-robot system comprised of ground robots of semi-autonomous nature for source detection tasks. The system combines augmented reality interface capabilities with human supervisor’s ability to control multiple robots. The thesis studies a preliminary Human Factors evaluation of this system in which several interface conditions are tested for source detection tasks. Results show that the novel Augmented Reality multi-robot control (Point-and-Go and Path Planning) reduced mission completion times compared to the traditional joystick control for target detection missions.
Motor Fault Diagnosis Based on Wavelet Analysis and Fast Fourier Transform

For the detection of the broken-bar fault of rotor in motors, a traditional method is frequency spectrum analysis for the stator current. However, the frequency components representative of the rotor fault can be easily submerged by the fundamental frequency, so that the detections results are inaccurate. In this paper, the stator current will be decomposed and reconstructed, after that the fast Fourier transform can be applied to the frequency spectrum analysis. It eliminates the influence that the fault characteristic components are flooded by the basic frequency components. The experiment result shows that the existence of a slight fault in rotor can be detected. The method has a good theoretical and engineering application.
Matrix metalloproteinase-9 triggers the angiogenic switch during

Departments of *Biochemistry and Biophysics, ¶Medicine and ¶¶Anatomy, †Hormone Research Institute and ##UCSF Comprehensive Cancer Center,University of California, San Francisco, 513 Parnassus Avenue, San Francisco, California 94143, USA‡Department of Vascular Biology, The Hope Heart Institute, 1124 Columbia Street, Seattle, Washington 98104, USA§SUGEN Inc., 230 East Grand Avenue, South San Francisco, California 94080-4811, USA#Institute for Virus Research, Kyoto University, 53 Kawahara, Syogo-in, Sakyo-ku, Kyoto 606-8397, Japan††Sankyo Co. Ltd, 2-58 Hiromachi 1-Chome, Shinagawa-Ku, Tokyo 140-8710, Japan‡‡Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 6000 Harry Hines Boulevard, Dallas, Texas 75235-9111, USA§§Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan**Current address: Shionogi Institute for Medical Science, Shionogi & Co. Ltd, 12–4 Sagisu 5-Chome, Fukushima-ku, Osaka, 553-0002 Japan***e-mail: dh@biochem.ucsf. edu
CURRENT FED FULL-BRIDGE CONVERTER WITH VOLTAGE DOUBLER FOR PHOTOVOLTAIC SYSTEM APPLICATIONS

In this paper Maximum Power Point Tracking (MPPT) algorithm for photovoltaic (PV) system with current fed DC-DC converter is proposed. Various techniques have been proposed for tracking the maximum power from the photovoltaic (PV) cell to obtain the high efficiency and to protect the systems from the variations of the temperature and irradiance. In this paper Incremental Conductance (IC) MPPT algorithm is used to track maximum output power. For getting the high output voltage, Proportional Integral (PI) controller is used to control the DC-DC converter and Zero Voltage Switching (ZVS) is also implemented for all switches to improve the performance of converter. Additionally voltage doubler is connected in the secondary side which results in twice the amount of output voltage with reduced components. The simulation is carried out by using the MATLAB/Simulink software tools to demonstrate the working of the proposed system. The effectiveness of the system is also verified by using the hardware implementation.
Design and comparison of different flux‐switch synchronous machines for an aircraft oil breather application

SUMMARY This paper presents a design procedure of a flux–switch synchronous machine for an aircraft oil breather application. This work is part of a European project called ‘Power Optimised Aircraft’. The aim of this project is to replace some mechanical equipment by electromechanical devices to improve performance and reduce power consumption. The structure under study was developed at SATIE laboratory and it is based on the flux-switch principle. The permanent magnets are located in the stator, and the rotor is entirely passive. The study described in this paper is limited to the electromagnetic design. Copyright # 2005 John Wiley & Sons, Ltd.
The Aerodynamic Characterization of Generic Tail Fin Shapes

This paper describes the experimental characterization of the yaw response of a range of generic tail fin shapes: delta wings, right triangles, rectangles, and ellipses. The fins were tested in a wind tunnel without the complication of blades and nacelle. They were released from an initial angle, usually 45°, and the subsequent response recorded using an accurate potentiometer. Unsteady tail fin performance can be analysed using unsteady slender body theory and the quasi-steady analysis originally developed for wind vanes. Both predict a linear, second order response so the measured responses are quantified in terms of the natural frequency and damping ratio. It is shown that unsteady slender body theory is slightly more accurate, but both fail to describe the full complexity of the response.
Theresienstadt Ghetto: Propaganda, Paintings, and Protest

Throughout history, art has been used to express, emote, and empathize. It has provided a lens to understand history beyond figures and statistics, through the eyes of the people. The aim of this research study was to conduct a case study analysis of an art movement that emerged from the Theresienstadt Ghetto as a protest movement against the endeavor by the Nazis to use the Jewish inmates and their work as a tool of propaganda during the Holocaust. This paper consists of two parts. First, a detailed discussion of the environment of Theresienstadt was presented to show its evolution from the Nazis’ deceptive intent to put forth the illusion that it was a haven for Jewish people to the deterioration of living conditions and the audacious birth of an artistic hub upon the initiative of the Jewish inmates. Second, an in-depth analysis of four key works of art created in Theresienstadt, namely Transport Arrival by Leo Haas, a sketch by Helga Weissova, The Song is Over by Pavel Fantl, and Film and Reality by Bedrich Fritta, showcased the extraordinary courageous spirit of the artists in optimizing the meager resources they had to fight against their oppressors.
Accurate prediction of radiation patterns of dielectric resonator antennas

The radiation patterns of cylindrical dielectric resonator antennas excited with a TM11 mode is computed numerically. The numerical data obtained is found in good agreement with available experimental results. The symmetry of the radiation patterns is improved by reducing the ground plane dimensions, while the backlobe level is reduced by placing the antenna in a topless cylindrical cavity.
A Novel Smart Household Control System by Computer Vision

For the disable people or the aged people, they need extra help in their daily household life. Various modern devices have been developed to improve their living quality. These devices always have automatic functions which are considered crucial for their independent life. Different to the traditional automatic household appliance such as manually infrared remote-controller and automatic voice-operated switch, this paper presents a novel approach based on computer vision to realize intelligent household control. This proposed system uses Adaboost and ASM algorithm for face detection and feature point calibration. Based on the facial key points, the head postures and mouth states are calculated and then coded into a special data packet. Finally, the packet is sent by an infrared carrier to the intelligent appliance with infrared receiver to control their operation manner. By using computer vision technology with infrared communication, the system is especially effective for the disable people such as the upper-body paraplegic and the people with hand dysfunction.
Vantagens e desvantagens da utilização de peles-verdes em edificações residenciais em Porto Alegre segundo seus moradores

Green walls (climbing plants that cover the facades of a building, walls or any other vertical elements) is a technique that produces low environmental impact and brings benefits to the building and its surroundings. This study analyzes green walls found in residential buildings in Porto Alegre, considering the perception of their dwellers, aiming to produce a record of the use of this technique, and to point out its main advantages and disadvantages. The research methodology used was a series of in-depth interviews, in which a structured questionnaire was applied to dwellers of 38 buildings (comprised of one or more housing units) covered by green walls. The analyzed green walls are self-clinging climbers, of the species Ficus pumila and Parthenocissus tricuspidata. The dwellers confirmed, as main advantages of the technique, the aesthetic improvement of the landscape, the integration between urban environment and nature and also the positive effects on the wellbeing of humans and on the internal temperatures of the building. The main disadvantage cited was the necessary maintenance work. Therefore, this study suggests that green wall is a technique that has the potential of improving the urban environment, and, for that reason, further studies on this type of covering are recommended.
Distributed Groundwater Level Remote Centralized Monitoring and Warning System

The overexploitation of groundwater has caused many serious hydrological geological disasters in the world wide. In order to solve this subject, a groundwater level monitoring system which adopts C/S architecture design and is composed of a monitoring center, transmission network and monitoring terminals is proposed. The monitoring center is made up of a computer with professional monitoring software. The monitoring terminals are arranged at different area as required, and access Internet to transmit data to remote monitoring center server through GPRS net work. The monitoring center server is responsible for receiving, processing, storage, display and analysis the data about groundwater from monitoring terminals. The experimental results show that the system is stable, high precision, stability and timeliness of features, and realizes the automatic collection and centralized management of groundwater monitoring data that provides a reliable scientific basis for sustainable utilization development of groundwater resources and geological hazards forecasting.