Miracle-dz/UniFAR-FTUs huggingface dataset:
Development of a tool to detect faults in induction motors via current signature analysis

This paper demonstrates through industrial case histories, how current signature analysis can reliably diagnose rotor cage problems in induction motor drives. Traditional CSA measurements can result in false alarms and/or misdiagnosis of healthy machines due to the presence of current frequency components in the stator current resulting from nonrotor related conditions such as mechanical load fluctuations, gearboxes, etc. Theoretical advancements have now made it possible to predict many of these components, thus making CSA testing much more robust and less error prone technology. Based on these theoretical developments, case histories are presented which demonstrate the ability to separate current components resulting from mechanical gearboxes from those resulting from broken rotor bars. From this data, a new handheld instrument for reliable detection of broken rotor bars, air gap eccentricity, shorted turns in LV stator windings and mechanical phenomena/problems in induction motor drives is being developed and is described. Detection of the inception of these problems prior to failure facilitates remedial action to be carried out thus avoiding the significant costs associated with unexpected down time due to unexpected failures.
Analysis of Railway Wheel to Study the Stress Variations

Wheel is one of the most intensively loaded components of rolling stock. When the brakes are applied, friction is generated between the wheel tread and the brake block, through which energy is dissipated. This friction generates heat which results in thermal loads on the wheel in addition to static and dynamic loads during their service. These thermal loads along with structural loads may cause failure of the wheels if they not designed properly. The present paper describes the behaviour of the wheel due to structural and thermal loads, as well as combined loading. For this investigation, stress analysis was carried out on rail loco wheel by using analysis software ANSYS, which was modelled as axisymmetric model using PROE. Also study has been done on the effect of re-profiling of the wheel on deformations and stresses due to both thermal and mechanical loads.
Low-loss on-chip transmission lines with micro-patterned artificial dielectric shields

Low-loss coplanar waveguide (CPW) transmission lines integrated on a standard (5 -10 Omega ldr cm) silicon substrate are realised by using an artificial dielectric shield with a very high in-plane dielectric constant. The shield consists of a 30 nm-thick Al 2 O 3 film sandwiched by two 100 nm-thick aluminium layers patterned into lattices of mum-size elements. The individual metallic elements are micro-patterned to suppress the flow of eddy currents at microwave frequencies. Inserted below the CPW, the shield blocks the electric field of the line from entering the silicon substrate. The resulting line attenuation (measured up to 25 GHz) is comparable to that of identical CPWs built on a high-resistivity silicon wafer.
Revolution of Biotechnology in Finishing Sector of Textile

This paper aims to provide the latest information on developments & applications of biotechnology in finish sector of textile. Textile finishing is one of the main sectors of textile which have always been focused in terms of advancements due to its versatility, high & functional value addition aspects. Bio-technology is replacing all harsh chemicals from wet processing of textile, therefore, term “Revolution” is used which seems much true & sustainable in near future. Key words : bio-Catalyst, Enzymes, Biotechnology, Laccase
Improving Schools, Developing Inclusion

Part 1: What is the Issue? 1. Improving Schools, Developing Inclusion? 2. Inclusive Development and the Policy Context 3. Establishing the Research Network Part 2: What Does Research Tell Us? 4. Manoeuvring Space for Inclusion 5. Winding Up to Inclusion 6. Creating Interruptions Part 3: What are the Overall Implications? 7. Making School Improvement Inclusive 8. Towards an Inclusive Education System
Switched PI Control Based MRAS for Sensorless Control of PMSM Drives Using Fuzzy-Logic-Controller

With the use of sensorless control strategy, mechanical position sensors can be removed from the gearbox, so as to decrease the maintenance costs and enhance the system robustness. In this paper, a switching PI control based model reference adaptive system (MRAS) observer using Fuzzy-Logic-Controller (FLC) is introduced for sensorless control of permanent magnet synchronous motor (PMSM) drives. The main work and innovation of this paper include: 1) A disturbance observer based voltage compensation method is proposed to solve the problems of voltage distortion in voltage source inverter (VSI) fed PMSM systems. 2) A double closed-loop FLC is designed for speed and current control. The response performance of speed regulation and the accuracy of the command voltage are improved, and the difficulty of manual adjustment of control parameters is avoided. 3) A sensorless control strategy of a switching PI control based MRAS observer is proposed for stator resistance tracking. By setting different thresholds, the proposed MRAS observer can choose the appropriate PI adaptive mechanism based on the amplitude of the current error variable, which can improve the accuracy of resistance estimation and improve the dynamic performance of sensorless control. 4) The experimental results are given to verify the availability of the proposed scheme.
180 degrees lumped element hybrid

A technique for the design of 180 degrees lumped-element hybrids is described which yields electrical performance comparable to the transmission line version but takes up significantly smaller area of GaAs. Broader bandwidth can be obtained by cascading two lumped-element sections. This technique is applicable to other distributed devices such as the 90 degrees branch-line hybrid and the Wilkinson power divider. The layout of an actual hybrid designed for a center frequency of 7.95 GHz is shown. <<ETX>>
Modifying the classroom environment to increase standing and reduce sitting

A reduction in sedentary behaviour (e.g. the length of time spent sitting) may prevent or reverse childhood obesity. The effectiveness of a ‘dynamic classroom’ environment in increasing standing and reducing sitting time in children was determined. A controlled trial with 26 (n = 18 intervention) New Zealand children (aged 9.8 ± 0.4 years; mean ± SD) was conducted. The intervention class received height-appropriate workstations for 22 weeks while the control class retained traditional desks and chairs. Children's sitting and standing were measured at three time points (baseline, week 5, week 9). Pain, inattention and hyperactivity were also assessed. At week 22, qualitative data were collected via a focus group and an interview and analyzed using the thematic framework. Mean differences were interpreted using standardized magnitude thresholds. On weekdays (during waking hours) there was on average a large increase in overall standing, 55 minutes per day over nine weeks of intervention compared with the control classroom. Children's overall sitting time reduced, but the changes were small. There were no substantial differences between the control and intervention classrooms in pain and inattention-hyperactivity mean scores. Children enjoyed working at the height-appropriate standing workstations. Teachers were supportive of the dynamic classroom environment. Height-appropriate standing workstations can be successfully integrated into classrooms to increase overall standing and decrease sitting time.
Joint Base Contracting: A Comparative Analysis of Joint Base Contracting Activities between Services

Abstract : The Department of Defense (DoD) recently created 12 joint bases by consolidating the support functions of geographically close bases under the lead of a single service. The 2005 Base Closure and Realignment (BRAC) Commission recommended the joint-basing initiative based on the expected savings of $183.8 million annually. The objectives of the BRAC process were to achieve cost savings, transformation, improvement of capabilities, and enhancement of military value. Using a case study approach, this research identified the specific factors that contribute to the organizational successes of joint base contracting at Joint Base San Antonio (JBSA) and Joint Base Lewis-McChord (JBLM). These factors include processes, governance structures, organizational structures, and communication. This research also identifies barriers to consolidation as well as comparing and contrasting the way JBSA and JBLM operate. Additionally, this research identifies strengths and weaknesses of the approaches used by the Air Force and the Army. Thus, by documenting specific enablers and barriers, this research should help to guide the planning and implementation of future consolidations throughout DoD and other government organizations.
FIRE RESISTANCE BEHAVIOUR OF LIGHTWEIGHT-FRAMED CONSTRUCTION

This paper presents the results of a number of full-scale fire resistance tests conducted in accordance with the CAN/ULC-S101 standard on wall and floor systems as part of the collaborative research program on the fire and acoustical performance of lightweight assemblies. Based on the test results, the effects of a number of design parameters on the fire resistance performance of assemblies have been investigated including: attachment of the gypsum board, insulation type, resilient channels, gypsum board thickness, number of gypsum board layers, stud arrangements, type of framing, resilient channel and framing spacing, sub-floor type and structural load. The results have shown that the main factors that affected the performance of stud wall assemblies were the type of insulation, the number of gypsum board layers, and attachment of gypsum board. The paper also describes how the information gathered from this study will be used to benefit practitioners, builders and regulators in choosing suitable assemblies for their designs. This includes, a discussion of the models that have been developed to predict the fire resistance of lightweight assemblies. Finally, the paper provides a brief summary of NRC’s future research in the area of lightweight-framed construction.
Integration of BDI paradigm into ABAsim architecture

The paper focuses on the integration of the BDI reasoning model into the ABAsim architecture. The ABAsim architecture provides means for creation of flexible simulation models of a broad range of complex service systems. However, deliberative agents provided by the architecture may not be sufficient enough when modelling systems containing entities with high-level decision making capabilities, e.g. pedestrians. We propose an extension of the architecture with the BDI paradigm that is utilized to model the reasoning of dynamic agents. In order to integrate the BDI reasoning model into the ABAsim architecture, we designed and implemented a special ABA-graph of agent’s reasoner and provided a set of components to easily define agent’s behavior in terms of BDI. Several changes to the communication mechanism were required as well. The result of our work is a new approach to the modeling of intelligent dynamic agents within the ABAsim architecture. This new concept is demonstrated on an example of a pedestrian behavior model that is already utilized in our pedestrian simulation tool.
Development and Testing: Cervical Cancer Prevention Questionnaire Based on Theory of Planned Behavior in Chile

The purpose of this study was to developmentally and psychometrically validate the cervical cancer prevention questionnaire (CPCC-16) based on Theory of Planned Behavior in Chilean women. The patient sample was 967 women. Confirmatory factor analysis was used to evaluate factor structure, Cronbach’s alpha for internal consistency and t-test for criteria validity. The development and validation of the questionnaire resulted in six factors with 16 items, demonstrating a bi-factorial structure. Cronbach’s alpha was higher than 80 in the questionnaire and its factors. To generate a valid and reliable questionnaire that measures, under a theory of behavior, more than one preventive behavior in cervical cancer is an important advancement that fills a gap in nursing research.
Advanced planetary thermal spectroscopy

Advanced technology miniaturization of the 14.5-kg Mars Global Surveyor (MGS) Thermal Emission Spectrometer (TES) allows new scientific missions. A 2to 3-kg mini-TES is being developed under a NASA Planetary Instrument Definition and Development (PIDDP) effort by Arizona State University and Santa Barbara Remote Sensing. Mini-TES will obtain spectra from 6 to 40 /spl mu/m, applicable to flyby spacecraft atmospheric and surface analyses to help select planets and smaller objects for examination from orbit. From low-altitude, mini-TES could assess aerosols, ice and vapor abundance and composition, as well as vertical temperature profiles, and examine surface composition with 1-km to 100-m resolution. Mini-TES could analyze ice, rock, and soil with from 1-m to 20-cm resolution from a fixed lander down to a centimeter from a rover, as well as provide surface-based atmospheric analyses.
International Management: Text and Cases

Part 1 Text: the internationalisation process - the global business environment the world of international trade managing export operations global sourcing strategy R&D, manufacturing and marketing interfaces licensing the design and management of international joint ventures international strategy formulation the impact of globalisation on the organisation of activities the evolving multinational the global manager political risk - managing government intervention. the global leader. Part 2 Cases in internationalization: Leo Electron Microscopy Ltd. A Zeiss-Leica Cooperation Kenny Rogers Roasters in China (A) Palliser Furniture Limited Neilson International in Mexico Selkirk Group in Asia Russki Adventures Samsung China - the introduction of colour TV Cameron Auto Parts (A) - revised Hush Puppies Chile Technophar in Vietnam Nora-Sakari - a proposed joint venture in Malaysia Mercedes comes to Alabama where have you been? an exercise to asses your exposure to the rest of the world's peoples HAM Beverage Wil-Mor Technologies, Inc. Part 3 Multinational management: Matra-Ericsson Telecommunications 1990 Toppan Moore Black & Decker - eastern hemisphere and the ADP initiative (A) Global Enterprises, Inc. Honeywell Inc., and Global Research and Development Hilti Corporation (A) Bristol Compressors, Asia-Pacific Matsushita, Electric Industrial Ltd Europe - sales and marketing, 1994 DSL de Mexico S.A. de C.V. (A) Larson in Nigeria - 1994 Mabuchi Motor Co., Ltd. Scotch-Brite (3M) Enron Development Corporation crisis at Renault -the Vilvoorde plant closing (A) the Brent Spar platform controversy Sicom GmbH and CD piracy.
Mechanical state of the rail underhead region under heavy haul operations

The occurrence of tensile stresses in the underhead region as a result of localised vertical and lateral head bending on the web is significant, and can potentially contribute to fatigue cracking. Field measurements under heavy haul conditions have shown that these stresses occur as a tension spike when the instrumented location is directly beneath the wheel. The aim of this study was to evaluate the stress state of the rail underhead region with respect to changes of the rail profile due to wear. The study was undertaken using the finite element method (FEM) involving a static stress analysis. The analysis revealed that the longitudinal stress at the rail gauge corner of the outer rail in curved track is highly dependent on several operational parameters including the offset of the contact patch location from the rail centreline, the ratio of lateral (L) to vertical (V) loads (L/V ratio), the direction of lateral traction, foundation stiffness and the head wear (HW). The magnitude of the tension spike at the surface of the rail in the underhead region is increased, but the depth below the contact surface at which the stresses become tensile is reduced when increasing the offset of contact patch location, the L/V ratio, the foundation stiffness and the HW. Both residual (RS) and thermally induced stresses increase the value of the stress in this region. The tensile stresses could potentially cause fatigue crack initiation at the rail underhead region and, in particular, could cause rolling contact fatigue (RCF) cracks on the gauge corner of the rail to turn downwards into transverse defects (TDs).
Reliability Enhancement Testing (RET)

This paper presents the initial results of the Reliability Enhancement Testing (RET) being conducted by The Boeing Commercial Avionics Systems (CAS) group. The RET process was developed to improve the quality and maturity of avionics hardware before its introduction into service. The development of such testing is essential to the elimination of design and manufacturing deficiencies. It is considered whether this concept could be applied to avionics hardware to detect manufacturing process problems and design deficiencies. A major consideration in the efficient application of this process to production is the development and optimization of the sequences of test steps. The Boeing 777 aircraft will be the largest twin-engine jetliner, its introduction offering a new standard of quality, reliability, performance capabilities and passenger comfort. CAS has initiated the RET effort for the 777 Program in support of this increased emphasis on product integrity. The objective is to detect deficiencies, determine their fundamental cause, and implement appropriate corrective actions before delivery of the product to the airline. This pilot program is to establish a process to be applied to newly designed hardware to eliminate design and manufacturing deficiencies, and to mature both the hardware and processes before introduction into service. The initial results indicate that the RET approach has a sound foundation and its continued development is desirable. No test sequence or pattern of testing can guarantee detection of all deficiencies; this approach holds one of the keys to ensuring maturity of hardware before delivery. <<ETX>>
Refrigeration for cryogenic sensors and electronic systems

This document contains the proceedings of a meeting of refrigeration specialists held at the National Bureau of Standards, Boulder, CO, on October 6 and 7, 1980. Participation included representatives of industry, government, and academia. The purpose of the meeting was to discuss progress in the development of refrigeration systems which have been specialized for use with cryogenic sensors and electronic systems. The meeting focused primarily on the temperature range below 20 K and cooling capacity below 10 W. The meeting was jointly sponsored by the International Institute of Refrigeration-Commission A 1/2, the Office of Naval Research, the Naval Research Laboratory, the Cryogenic Engineering Conference, and the National Bureau of Standards.
Assessment of driver's and passenger's behaviour when facing an imminent side crash

The aim of this study was to identify changes in the position and postureof front seat occupants that occur in a pre-crash environment. The study involved placing male volunteers in a driving simulator with programmed crash scenarios. Analysis of human reactions were recorded with the use of surface electromyography (EMG) by electrodes placed on the upper limbs. The simulated impact velocity, time of crash, time and angle of steering wheel rotations and initiation of braking were recorded. Subjects were alsovideotaped to assess the overall body motion and reactions. The study found that both isometric and isotonic muscle reactions were observed with varying amounts of left, right, or bilateral muscle movement. The study wasconducted within APROSYS SubProject 6 - Intelligent Systems. For the covering abstract see ITRD E134311.
On the use of fitting models for the time-domain analysis of problems with frequency-dependent parameters

The use of fitting models in the time-domain analysis of electromagnetic problems is of great interest. The aim of this paper is to describe the main features of different fitting models, and the key issues related to their use and practical implementation in computational codes. Equivalent circuit representations of such models are also presented, and numerical applications are shown in order to provide guidelines for the choice of the method that is the most suitable to solve a specific problem.
Performance of a proposed event-type based analysis for CTA

The Cherenkov Telescope Array (CTA) will be the next-generation observatory in the field of very-high-energy (20 GeV to 300 TeV) gamma-ray astroparticle physics. Classically, data analysis in the field maximizes sensitivity by applying quality cuts on the data acquired. These cuts, optimized using Monte Carlo simulations, select higher quality events from the initial dataset. Subsequent steps of the analysis typically use the surviving events to calculate one set of instrument response functions (IRFs). An alternative approach is the use of event types, as implemented in experiments such as the Fermi-LAT. In this approach, events are divided into sub-samples based on their reconstruction quality, and a set of IRFs is calculated for each sub-sample. The sub-samples are then combined in a joint analysis, treating them as independent observations. This leads to an improvement in performance parameters such as sensitivity, angular and energy resolution. Data loss is reduced since lower quality events are included in the analysis as well, rather than discarded. In this study, machine learning methods will be used to classify events according to their expected angular reconstruction quality. We will report the impact on CTA high-level performance when applying such an event-type classification, compared to the classical procedure.