Miracle-dz/UniFAR-FTUs huggingface dataset:
Rolling horizon planning in supply chains: review, implications and directions for future research

Due to their complexity and extensive application in industry, rolling horizon planning systems have received considerable attention in the literature. Of particular interest is the impact of different lot-sizing rules and policy variables on replenishment schedule cost and stability. Past research indicates that exact lot-sizing approaches may not perform the best in rolling horizon environments and that a single algorithm seldom performs well on both schedule cost and stability. In addition, a rolling horizon policy that performs well in one operating environment may perform poorly under different conditions. While rolling horizon research typically assumes a single planner, or planning layer, recent trends in outsourcing and global operations call for the study of supply chains that are characterised by multiple planning layers with information sharing and coordination among them. This article reviews the rolling horizon planning literature and synthesises the findings, extends the research taxonomy to include emerging research on supply chain systems with multiple planning layers and joint inventory replenishment, and provides several promising future research directions. This survey provides a starting point for anyone conducting research in this important research area.
Low‐loss and high‐isolation active type cascode switch in 0.13‐μm CMOS for millimeter‐wave applications

This article presents two types of switches which are fabricated in 0.13‐μm standard CMOS process characterized up to 50 GHz. The first is the conventional series NMOS switch with an optimum gate width which is adjusted by measuring various sized devices. The second is a new active type cascode switch for millimeter‐wave phased array systems. The series NMOS switch produces 3 dB insertion loss and 7.5 dB isolation at 40 GHz. In contrast, the active type cascode switch has 7.5 dB better insertion loss (Gain) and 20 dB better isolation than the passive switch at 40 GHz. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1856–1858, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24476
Ultrasonic Liquid Level Detector Using Micro controller

Fuel is one of the most important and recent crises in present situation. Though the people are working on to find out the alternative way to provide a better renewable energy source, the hike and need for coal and petroleum never stops. The transmission of petroleum and its products takes place only through the highways by means of tanker Lorries. Since the total quantity of the petroleum reduces as a result of carelessness and selling it to get more money, there exist a gap between the sender and the receiver. To avoid all those mischievous, our system provides a secured and compact device that can measure the amount of liquid in the container and transmits to sender as well as the receiver to avoid further chaos.
Dynamic characteristics of partially excited permanent magnet linear synchronous motor considering end-effect

This paper is presented for evaluating the dynamic of permanent magnet linear synchronous performances motor (PMLSM) which is energized by partially excited primary current. Especially, the influence of the end-effect resulting from the moving magnet is considered in detail. The starting and control characteristics related to the capability in PMLSM driving are investigated successively.
Relationship between Discomfort Perception and Biomechanical Criteria during a Reaching Task

The use of 3D graphic mannequins in design processes has increased significantly in the last years. However, besides the beautiful images they provide, it is necessary to develop criteria that allow to estimate the degree of discomfort felt by an operator when he executes a task, in order to perform an ergonomic analysis of a virtual work situation. One of the methods used to reach this objective is the comparison of the discomfort level felt by real subjects during the performance of a given task, with biomechanical indices calculated through an analysis of the posture and movements involved in that task.
Predicting EQ-5D Index Scores from the PROMIS-29 Profile for the United Kingdom, France, and Germany

Background: EQ-5D health utility (HU) scores are commonly used in health economics to compute quality-adjusted life years (QALYs). EQ-5D scores, which are country-specific, can be derived directly or by mapping from self-reported health-related quality of life (HRQoL) scales such as the PROMIS-29 profile. The PROMIS-29 from the Patient Reported Outcome Measures Information System is a comprehensive assessment of self-reported health with excellent psychometric properties. We sought to find optimal models for predicting EQ-5D scores from the PROMIS-29 in the United Kingdom, France, and Germany and compared the prediction performances with that of a US model.Methods: We collected EQ-5D-5L and PROMIS-29 profiles and three samples representative of the general populations in the UK (n=1,509), France (n=1,501), and Germany (n=1,502). We used stepwise regression with backward selection to find the best models to predict the EQ-5D score from all seven PROMIS-29 domains. We investigated the agreement between the observed and predicted EQ-5D scores in all three countries using various indices for the prediction performance, including Bland-Altman plots to examine the performance along the HU continuum.Results:The EQ-5D index scores were best predicted in Germany (RMSEGER = 0.10, MAEGER = 0.06), followed by France (RMSEFR = 0.11, MAEFR = 0.08) and the UK (RMSEUK = 0.12, MAEUK = 0.09). The Bland-Altman plots show that the inclusion of higher-order effects reduced the underprediction of low HU scores.Conclusions: Our models provide a valid method to predict EQ-5D-5L index scores from the PROMIS-29 for the UK, France, and Germany.
Assessing the Potential for Digital Transformation

Historically, new technologies have always increased the efficiency of production processes. Production process efficiency increases productivity. With the growth of productivity, there is usually an increase in sales and profit. Today’s world is mainly influenced by digital technologies. The digitization of production processes leads to the digital transformation of the business and natural economy sectors. If, like other technologies in the past, the effects of digital technologies are associated with a growth in efficiency, productivity and thus also revenues and profits, the aim of this article is to propose a model to assess the potential of a digital transformation from a macroeconomic perspective. The proposed model, which was based on a composite indicator expressing the potential for digital transformation, was quantified for a certain period and for a selected sample of countries. The potential for digital transformation can occur in any country, regardless of the purchasing power of its population and GDP per capita. We can assume that the economic benefits of digital technologies are obvious. Businesses operating in any country innovate and are driven by digital technologies. This is also reflected in employment. New workers who know how to work with digital technologies are needed. Therefore, the results of the assessments and the proposal itself serve as a basis for national policy makers to create national strategies for digital transformation.
Acoustic evaluation of faults in electrical machines

Condition monitoring of induction motors traditionally involves current measurements to detect electrical faults, and accelerometer measurements to determine mechanical faults. This work focuses on the use of acoustic measurements for condition monitoring, and proceeds from preliminary work done by Reynders, et al. (1992). The feasibility of identifying loose stator coils by acoustic measurements is shown, as is the identification and verification of a suitable neural network to perform this task automatically.
Predictive Inverse Neurocontrol with Recycled Reference Trajectory

In this paper, the method of recycled reference trajectory for the plant output is considered within the main framework of the Predictive Inverse Neurocontrol (PIN) technique. The method allows to simplify the PIN controller synthesis and to improve the control quality of a PIN controller when operating with short prediction horizon . Moreover them it offers greater flexibility when choosing the desired of the plant's output response. The advantage of the proposed approach is illustrated by several examples of physical plants control.
Health Assessment of Aircraft Based on Wavelet Neural Network

Health assessment is one of the key technology in the aircraft operating system. Aiming at the characteristic of aircraft structure, the aircraft fault prediction method based on data mining is presented in this paper. The concept of health assessment is introduced first, the wavelet neural network provide the mathematical model reflecting aircraft health state. The experiment results show that the health prediction applying wavelet neural network works well with high fidelity and real time. Focusing at a typical heavy-duty gas turbine, the critical information collected by the sensor is applied as the network input, then the wavelet neural network is constructed, the quick training and learning speed is proved. The results indicate proposed approach is promising for reliable diagnostics of aircraft.
3.5 GHz WiMAX GaN doherty power amplifier with second harmonic tuning

The article presents the design, realization, and experimental validation of a GaN‐based hybrid Doherty power amplifier for WiMAX base‐stations at 3.5 GHz. The amplifier exploits, for the first time as far as authors' knowledge goes, a second harmonic tuning scheme designed to further improve the efficiency in the Doherty region. The amplifier is based on a packaged GaN HEMT from Cree, and shows a saturated output power exceeding 43.2 dBm (21.5 W), a Doherty high‐efficiency region in excess of 6 dB output back‐off, with a first peak and maximum drain efficiency at saturation of 55 and 61%, respectively. The amplifier, with baseband digital predistortion, is compliant with the standard emission mask in the presence of a 9 dB peak to average power ratio WiMAX input and exhibits a weighted efficiency as high as 40%. The performances of the designed amplifier favorably compare with the state of the art for the same application. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2601–2605, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27132
Effets de la double couche électrique sur un écoulement de Poiseuille

Le contact d’un liquide avec une paroi donne naissance dans la plupart des cas à une double couche électrique (DCE) dont les effets sont négligeables à une échelle macroscopique mais ne le sont plus à une échelle microscopique. Cette DCE peut être exploitée pour mettre le liquide en mouvement (électro-osmose) ou pour déplacer en son sein des particules solides (électrophorèse) par application d’un champ électrique. En l’absence d’un tel champ électrique et dans le cas d’un écoulement généré par gradient de pression, la DCE joue également un rôle, qui n’est plus moteur, mais dont les conséquences apparaissent multiples. La littérature sur ce sujet s’est particulièrement étoffée au cours des dernières années, avec plus d’une centaine de publications traitant des effets de la DCE sur les micro-écoulements de liquides générés par un gradient de pression. L’objectif de cet article est de proposer une synthèse et une analyse de cette bibliographie, montrant l’état des connaissances actuelles et les verrous scientifiques qu’il reste à forcer. Le contact d’un liquide avec une paroi donne naissance dans la plupart des cas à une double couche électrique (DCE) dont les effets sont négligeables à une échelle macroscopique mais ne le sont plus à une échelle microscopique. Cette DCE peut être exploitée pour mettre le liquide en mouvement (électro-osmose) ou pour déplacer en son sein des particules solides (électrophorèse) par application d’un champ électrique. En l’absence d’un tel champ électrique et dans le cas d’un écoulement généré par gradient de pression, la DCE joue également un rôle, qui n’est plus moteur, mais dont les conséquences apparaissent multiples. La littérature sur ce sujet s’est particulièrement étoffée au cours des dernières années, avec plus d’une centaine de publications traitant des effets de la DCE sur les micro-écoulements de liquides générés par un gradient de pression. L’objectif de cet article est de proposer une synthèse et une analyse de cette bibliographie, montrant l’état des connaissances actuelles et les verrous scientifiques qu’il reste à forcer.
Biomass for Electricity and Process Heat at Ethanol Plants

Biomass can provide electricity and process heat at dry-grind ethanol plants to both reduce costs and improve the net energy value of ethanol production. Distillers dried grains with solubles (DDGS), which are coproducts of ethanol production, can potentially be used for energy. Cornstover is another potential biomass energy source for ethanol plants. Biomass (DDGS and cornstover) alternatives to provide process heat and electricity at corn dry mill ethanol plants are evaluated. Corn dry grind ethanol production using biomass (DDGS or cornstover) to meet process energy needs and generate electricity achieves net energy values in the range of 20 to 30 MJ/L (72,000 to 108,000 Btu/gal) of ethanol, which equals or exceeds previous estimates for biomass ethanol production. There are significant annual energy cost savings/returns for a 150 million liter (40 million gallon) per year plant capacity over a range of natural gas and biomass prices to apply to additional capital and operating costs required for a biomass energy system. Electricity generation is potentially an important contributor to the annual energy cost savings/returns because of the ability to effectively use waste heat from electricity generation to meet process energy needs. An important next step is to evaluate capital and operating costs of biomass combustion/gasification, emission control, biomass fuel handling, and electricity generation technologies to determine overall economic feasibility.
GSM open‐loop duplexer filter with internal stubs

A duplexer filter with open‐loop resonators, having internal stubs, for the GSM band in the DSC1800 Cellular Radio Base Station standard is presented. The filters use square open‐loop resonators. Insertion of the stubs allows the perimeter of the loop to be less than λ/2, which is the length used in the canonical loop. The device was fabricated on PTFE (RO3010) board. An eight‐pole selective filter with a single pair of attenuation poles was used. A full‐wave EM simulator was used to obtain the dimensions of the resonators. The measurement results are presented in comparison with the expected simulated values. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2422–2426, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23677
Detection of Range-Based Rail Gage and Missing Rail Fasteners

Defects in railroad tracks are responsible for several incidents every year. Rail gage is one of the most important measurements for track maintenance because deviations in gage indicate where potential defects may exist. In addition, missing rail fasteners can be considered a critical defect that should be detected and repaired because missing fasteners are a common cause of gage misalignment issues. An improvement or enhancement to the currently available automatic inspection system specifically devised to estimate rail gage and detect missing rail fasteners is presented. A three-dimensional (3-D) imaging sensor, which produces high-resolution two-dimensional images and 3-D profiles, is used to capture the data. Then a range-based approach is used to inspect the railroad track. The 3-D structure of the rail components (rail heads and rail fasteners) is relied on instead of a vision-based approach, which suffers from illumination changes. The system is evaluated with data recorded from real scenarios in two cities (Metro Madrid in Spain and the London Underground) with different nominal gage values and fastening elements. The system is described, and results are presented, evaluated, and discussed.
Magnetic field and vibration monitoring in permanent magnet synchronous motors under eccentricity fault

In this study, a novel frequency pattern is extracted from magnetic field analysis for precise eccentricity fault recognition in permanent magnet synchronous motors (PMSMs). In this analysis, impacts of stator slots, saturation, static and dynamic eccentricities are taken into account. Radial force and unbalanced magnetic pull are evaluated analytically and their spectra are utilised for vibration monitoring in the faulty PMSM. Furthermore, a frequency pattern is presented based on the processing of the radial force in PMSM under eccentricity fault. Since in the finite-element method, geometrical characteristics of all parts of the motor, spatial harmonics because of the stator slots, saturation owing to non-linear characteristics of the ferromagnetic materials in the stator and rotor cores and spatial distribution of stator windings are considered, two-dimensional (2D) and three-dimensional (3D) time-stepping finite-element method (TSFEM) are employed for modelling and analysing PMSM under static and dynamic eccentricities. The results obtained from the analytical approach introduced are validated by 2D and 3D TSFEM solutions. Simulation results are verified by experimental results.
Fast optical correlator via thermal delay tuning in photonic crystal coupled waveguide

We demonstrate a fast optical correlator using tunable delay of slow light in chirped photonic crystal coupled waveguide. Laser heating was performed for the tuning with a response speed up to several kHz. We clearly observed the crosscorrelation trace of 1.8 ps pulses. The tuning range was limited up to 8.7 ps, but will be extended to several 10 ps by long length devices. As the response is >100 times faster than conventional mechanical methods, the device is suitable for fast data mapping in optical correlation systems such as OCT.
The Research and Design of Elevator Automatic Rescue System

With the widespread use of the elevator, the shortcomings of the current elevator design become apparent. Especially the phenomenon of people being trapped in the elevator caused by accidently powered-off or some other reasons, which not only arouses much uncomfortable, but also threaten the safety of passengers. To solve this problem, an Elevator ARS (Automatic Rescue System) based on Internet is proposed and designed in this dissertation. The system is developed based on high performance MCU (Micro Control Unit), by which all status of elevators can be monitored through Internet.
Packaging technology for the NEC ACOS System 3900

The packaging technologies adopted in the NEC ACOS System 3900 are described. A new high-density surface-mount technology was adopted to further reduce the distance between the LSI chips, based on the high-speed LSI technology and the LSI multichip packaging technology used in the supercomputer SX-3. The system uses as a processor a multichip package (MCP) which can mount up to 100 VLSIs with a maximum of 20000 gates per VLSI and 70-ps delay time per gate. To connect MCPs over the shortest distance, MCPs are mounted on both sides of single 42-layer printed wiring board (PWB). A new surface-mount zero insertion force (ZIF) connector has been developed to implement this double mounting of MCPs. This ZIF connector is a high-density surface-mount connector having 9440 contacts on one side of the pad arranged in a 2.54-mm staggered grid on the PWB surface. This makes it possible to connect the MCP and the PWB at once with high reliability. The main memory unit is described. <<ETX>>
Influence of absolute humidity on the electrical breakdown in air

One of the most important insulating gases in high-voltage technique, the air, is varying with climatic conditions. The most important parameters are the pressure, temperature and the absolute humidity. The influence of humidity on the discharges is investigated in this report. First, the physical processes on the discharge development are discussed in respect to the influence of water vapour in air. Experimental results of the breakdown voltage with variable absolute humidity are explained with these processes. The experimental investigation was done with a rod-plane gap of 20 cm to 100 cm distance and with different voltage wave shapes. The different influence of water vapour on different predischarge phenomena can be seen in different dependency of the breakdown voltage on the absolute humidity, for each type of predischarge dominating before breakdown.
Regenerative braking strategies, vehicle safety and stability control systems: critical use-case proposals

The sustainable development of vehicle propulsion systems that have mainly focused on reduction of fuel consumption (i.e. CO2 emission) has led, not only to the development of systems connected with combustion processes but also to legislation and testing procedures. In recent years, the low carbon policy has made hybrid vehicles and fully electric vehicles (H/EVs) popular. The main virtue of these propulsion systems is their ability to restore some of the expended energy from kinetic movement, e.g. the braking process. Consequently new research and testing methods for H/EVs are currently being developed. This especially concerns the critical ‘use-cases’ for functionality tests within dynamic events for both virtual simulations, as well as real-time road tests. The use-case for conventional vehicles for numerical simulations and road tests are well established. However, the wide variety of tests and their great number (close to a thousand) creates a need for selection, in the first place, and the creation of critical use-cases suitable for testing H/EVs in both virtual and real-world environments. It is known that a marginal improvement in the regenerative braking ratio can significantly improve the vehicle range and, therefore, the economic cost of its operation. In modern vehicles, vehicle dynamics control systems play the principal role in safety, comfort and economic operation. Unfortunately, however, the existing standard road test scenarios are insufficient for H/EVs. Sector knowledge suggests that there are currently no agreed tests scenarios to fully investigate the effects of brake blending between conventional and regenerative braking as well as the regenerative braking interaction with active driving safety systems (ADSS). The paper presents seven manoeuvres, which are considered to be suitable and highly informative for the development and examination of H/EVs with regenerative braking capability. The critical manoeuvres presented are considered to be appropriate for examination of the regenerative braking mode according to ADSS. The manoeuvres are also important for investigation of regenerative braking system properties/functionalities that are specified by the legal requirements concerning H/EVs braking systems. The last part of this paper shows simulation results for one of the proposed manoeuvres that explicitly shows the usefulness of the manoeuvre.
Concrete mechanical behaviour and calcium leaching weak coupling

ABSTRACT A rheological model with orthotropic short-time and long-time damage is developed in order to model leached concrete behaviour. Coupling with calcium leaching is obtained by affine attenuation of model parameters according to a microhardness profile measured on leached cement pastes. Calibration shows that most model parameters managing mechanical behaviour have the microhardness law as their attenuation law.