Miracle-dz/UniFAR-FTUs huggingface dataset:
Negotiation-Based Task Allocation in an Open Supply Chain Environment

Abstract A supply chain is a complicated network for linking suppliers, manufacturers, and distributors. How to allocate the tasks efficiently is a key issue in supply chain management. The forming of a supply chain is dynamic in nature owing to the frequent changes of demand. This paper focuses on task allocation in the open supply chain environment. The aim is to develop a task allocation method for autonomous and self-interested agents, which have incomplete information about the open environment. The proposed mechanism is based on an automatic negotiation approach, which is used to allocate tasks by negotiating among the manager-to-bidder and bidder-to-bidder. The modification of contract net protocol (CNP) for manager-bidder and the protocol of the stochastic offer are introduced, and the relevant negotiation algorithms are also presented. The proposed method is a dynamic method for task allocation, which is applicable to the open environment without a central authority and permits some degree of reconfiguration. Reconfiguration is useful in dispatching new tasks or handling resource failures.
A multiphase DC/DC converter with hysteretic voltage control and current sharing

An interleaving technique and hysteretic voltage control are suitable for low-voltage, high-current, fast-response power supplies. In this paper, a multiphase DC/DC power converter employing interleave and hysteretic control techniques and current sharing is proposed. The design considerations are discussed. Simulation and experimental results are reported.
Noise and fluctuations in submicrometric Al-Si interconnect lines

Low-frequency noise (LFN) in excess has been observed in the past in metal lines subjected to high current densities. Different types of noise and fluctuations have been identified and are briefly summarized in the first part of this paper. Then, some new experimental results, obtained with Al/Si submicrometric lines, are presented. In particular, it has been possible to identify and separate the contribution of three different sources of noise and, from the analysis of the noise component directly related to electromigration, an activation energy of about 1.4 eV has been obtained. This value clearly indicates that in these samples bulk electromigration is the main cause of the noise generation. Moreover, the consistency between the measured level of noise and the value of some physical quantities, contained in a model previously proposed, has been verified. In the final section of the paper, old and new results are utilized in an attempt to provide a satisfactory answer to some of the most important unsolved questions in this field.
Power management issues for future generation microprocessors

By reducing the power supply voltage, faster, lower power consumption, and high integration density data processing systems can be achieved. The current generation of high-speed CMOS processors (e.g. Alpha, Pentium, Power PC) are operating at above 300 MHz with 2.5 to 3.3 V output range. Future processors will be designed in the 1.1-1.8 V range to further enhance their speed-power performance. These new generations of microprocessors will present very dynamic loads with high current slew rates during transients. As a result, they will require a special power supply, a voltage regulator module (VRM), to provide well-regulated voltage. The VRMs should have high power densities, high efficiencies, and good transient performance. This paper addresses the critical technical issues to achieve this target for future generation microprocessors.
Impedance Analyzer Design Based on EMI and Lamb Wave

EMI and the Lamb Wave technology are two kinds of mainstream active detection method in health monitoring , which have a long-term development. Health monitoring based on the combination of the EMI technology and Lamb wave, can be either a single method to conduct monitoring and analysis of specific structure ,or two methods together to conduct more comprehensive damage monitoring.
Autonomous Control Agents for Adaptive MAV Mission Profiles

When a mission profile of an unmanned micro air vehicle is known a priori, one of the strategies adopted in autonomous control is to first generate a compatible trajectory in off-line and then implement a controller to track the trajectory. However, in decision rich intelligent aerial robots and in 6DOF operations of unmanned aerial vehicles, the mission profiles are usually known during an operation. Hence the trajectories are instantaneously inferred. Here an adaptive controller with capabilities to track these trajectories is required. In this paper, it is shown that an extended Kalman filter is an excellent tool to design such a controller which accepts the trajectory generation module as an input and then reconstructs its trajectories. To illustrate this feature, a 3DOF micro air vehicle in pitch plane is considered and an adaptive controller (referred as autonomous control agent) using an extended Kalman filter is applied to infer typical adaptive mission profiles.
A new approach to electric motor acoustic noise standards and test procedures

Current acoustic noise standards for induction machines originated when electric motor operating conditions were far less complex than those of today. The use of adjustable speed drives, incorporating electronic inverters, has led to dramatically changed motor noise characteristics. This paper presents a systematic approach to broadening the existing standards, to make them more useful in the true operating environment.
Modeling of complex hot-wire measuring system

Hot-wire measurements in non-isothermal flows require temperature compensation or correction. One of solutions is the system of two hot-wire anemometers which enable to measure velocity and temperature in non-isothermal gas flows. The output signal come from two hot-wire anemometers operating at different overheat ratio. As the two sensors operate in a CTA mode, we get a wide range of frequency bandwidth for velocity and temperature measurements. This paper present the result of modeling and optimization of a double hot-wire anemometer system providing temperature correction of anemometric signal.
Hydrologic Data Development System

The Hydrologic Data Development System is a prototype system of spatial data and menu-driven programs that allows user-interactive determination of hydrologic parameters and estimation of flood-frequency relationships for the design of highway drainage structures. The program employs Arc/Info, a commercial geographical information system. A data base was developed to cover the extent of Texas at a scale of 1:2,000,000 and a smaller sample area of northeast Texas at a scale of 1:250,000. The data include digital-elevation models, major highways, soil characteristics, design rainfall depth-frequency-duration, land use, stream gauge sites, hydrologic regions, and political boundaries. New tables were developed to spatially relate soil characteristics and land use to runoff coefficients used in the Natural Resources Conservation Service Runoff Curve Number method. The system employs spatial-analysis techniques to establish an outfall, to delineate drainage boundaries and flow paths using relevant digital-elevation data, and to use other data layers to determine parameters such as average watershed slope, time of concentration, area-weighted runoff curve numbers, and area-weighted design rainfall. Input files can be established and submitted to the Texas Hydraulic System computer program to determine food-frequency relationships.
Seismic Performance Analysis of CFST Stiff Skeleton Concrete Arch Bridge considering Non-planar Sectional Stress Induced by Balanced Ring-casting Construction

ABSTRACT Concrete-filled steel tube (CFST) stiff skeleton concrete arch bridges can be designed with longer spans using balanced ring-casting construction. However, this construction method induces non-planar sectional stress in the arch rings. To investigate the influence of the non-planar sectional stress on the seismic performance of arch bridges, we developed two numerical models of a typical arch bridge. The first model simulates the construction process of balanced ring-casting, while the second model ignores the construction process. The dynamic analysis results reveal that, if the construction process is ignored, the seismic risks of concrete cracking and reinforcement yielding in the arch rings will be underestimated.
Microfabrication and characterization of liquid core waveguide glass channels coated with Teflon AF

We report on the microfabrication and testing of liquid core waveguides (LCW) using Teflon AF for integration in microfabricated microanalysis systems. Teflon AF has an index of refraction less than that of water allowing it to function as a waveguide when used as a cladding layer surrounding an aqueous core. Straight microchannels (400-/spl mu/m width, 60-/spl mu/m depth) etched into Pyrex and soda-lime glass wafers were coated with Teflon AF and sealed with a Teflon AF coated capping wafer. Aqueous fluorescein solutions with varying concentrations were injected into the channels and were illuminated transversely using an ultraviolet light emitting diode. For studying the waveguide attenuation performance, light was focused to a point on the channel. Fluorescence generated in the channel was used to quantify the light collection and waveguide characteristics. The Teflon coating produces a significant enhancement in the amount of light collected in the channel, allowing light to be collected from the 16-mm length tested. This is compared to a control microchannel in glass (no coating), for which the fluorescence drops to the background level in an illumination-detection separation of <4 mm. For sensitivity performance, the entire channel was illuminated. The lower detection limit for spectroscopically resolved fluorescence was /spl sim/10 nMolar.
A general unified large signal model for current programmed DC-to-DC converters

A general and unified large signal averaged circuit model for current programmed DC-to-DC converters is proposed. In the averaged circuit model, the active switch is modeled by a current source, with its value equal to the averaged current flowing through it, and the diode is modeled hy the voltage source, with its value equal to the averaged voltage across it. The averaged circuit model has the same topology as the switching converter. The large signal averaged circuit model for current programmed buck, boost, buck-boost and Cuk converters are proposed, from which the large signal characteristics can be obtained. The steady-state and small signal transfer functions of the current programmed DC-to-DC converters can all be derived from their large signal averaged circuit models. The large signal characteristics of the current programmed buck converter are studied by both the phase plane trajectory and the time domain analysis. Experimental prototypes for a current programmed buck converter, with and without an input filter, are breadboarded to verify the analysis. >
Selection of Appropriate Semiconductor Switches for Induction Heated Pipe-Line using High Frequency Full Bridge Inverter

An exhaustive method for the choice of different power semiconductor switches for high frequency full bridge inverter fed induction heater is presented. Heating coil of the induction heater is made of litz wire which minimises the skin effect and proximity effect at high operating frequency. With the calculated optimum values of inductance and resistance of heating coil at a particular operating frequency, high frequency full bridge inverter topology has been simulated using P-SIM software as well as constructing the experimental model of same rating. Obtained the voltage waveforms across heating coil and current waveforms through it, have been taken for further analysis. From this analysis selection of suitable power semiconductor switches like IGBT, GTO and MOSFET are made. Waveforms have been shown to justify the feasibility for real implementation of high frequency full bridge inverter fed induction heater in industrial applications.
Classification Using 3D Point Cloud and 2D Image on Abstract Objects

While classification using machine learning is exceptionally successful with 2D images, it is more challenging to classify 3D objects. However, 3D objects classification is critical because of its application in autonomous vehicles and robotics. This paper compared neural networks with similar structures using 3D point clouds and 2D images on the same objects. We also generated objects with abstract design and input them into the neural networks we created. We find clear disadvantages with classifying abstract objects compared to ordinary objects for both neural networks. We believe having contextual information will help to address this problem. We also observed that the neural network based on images performs worse than that based on point clouds. However, image based classification takes less time to train compared to point cloud based classification.
A Wide Band Ring Slot Antenna Integrated Receiver

A wide band 500 GHz integrated receiver has been designed fabricated and tested. The receiver combines a ring slot antenna SIS mixer with a twin junction type tuning circuit and a Josephson Flux-Flow oscillator as LO. The receiver layout has been made using Nb technology. The receiver chip is glued on the silicon elliptical lens with antireflection coating. According to calculations a 30% 3-dB bandwidth can be achieved with this design. Measured SIS mixer pumping level is sufficient for SIS mixer operation in the band 400-570 GHz. We present the antenna beam pattern of a ring slot antenna on a silicon elliptical lens, a DSB noise temperature of the receiver and a FTS spectrum. The measured receiver DSB noise temperature is analyzed.
Projeto ergonômico do trabalho e inovação na dinâmica virtual-atual: uma contribuição teórico-conceitual

The main purpose of this paper is to amplify the current theoretical scenario of “Ergonomics of Project” area, according to the knowledge creation/innovation theory, and his concepts of virtual and subjectivity in the Work. This theoretical-conceptual article aims to shed new light on the relations between innovation and present-day efforts toward a scientific theory of knowledge in the Work, with its complex structure of theories, hypotheses and disciplines. There is in this paper a new approach to understand the Contemporary Ergonomic Project in a kind of Socio-Epistemological Engineering initiated by Markus F. Peschl in the University of Vienna. The methods employed were the systematic review and adaptation of Socio-Epistemological Engineering’s concepts in the actual context of epistemological and ontological principles of Ergonomics of Project.
Methods for Measuring and Interpreting Milking Vacuum

Techniques for measuring the level of milking vacuum are presented and discussed with reference to the specifications given in ISO Standard 5707 and ASABE standard S518. Common measurement and interpretation errors are illustrated in this paper along. Milking-time tests of average claw vacuum were shown to compare well to wet-tests (done with a milk flow simulator). Knowledge of simultaneous milk flow rate, either by using a flow simulator with a known flow rate or by estimating milk flow rate using milk meters improves predictive ability and can provide better information from measurements made on fewer cows. The wet tests provide a more accurate assessment of differences between system configurations because the liquid flow rate is more precisely known and the cow-to-cow variation is eliminated.
Ergonomic Considerations of Fin Size for Working Divers

Four divers conducted two identical work protocols, consisting of swimming against a graded resistance on an underwater ergometer at a depth of ten feet. In one protocol the divers used fins each having a surface area of 540 cm2 and in the second protocol they used fins whose surface area was 940 cm2. Oxygen consumption, heart rate, ventilation, breathing frequency and kick rate were monitored throughout the twenty minute work period. The 540 cm2 fins demanded a siqnificantly higher metabolic rate than the 940 cm2 fins (50.85 ± 1.54 compared to 46.99 ± 1.52 ml.min.-1.kg-1). The smaller fins also elicited higher heart rates (171.8 ± 4.3 min.-1) than the larger fins (142.5 ± 8.7 min.-1) and induced a higher kicking frequency than was required with the larger fins (43 ± 4 min.-1 and 32 ± 1 min.-1 respectively). Ventilatory volume at the end of the final workload was 128.6 ± 7 1/min. with small fins and 111.1 ± 6.5 1/min. with large fins. These data suggest that the larger fins are more economical in terms of minute ventilation and metabolic cost and are less demanding on the cardiovascular system. Subjectively, the larger fins were perceived as less fatiguing than the smaller fins.
Study on Glass Fiber Reinforced EP/PSF Insulating and Thermally Conductive Composite Filled with BN Particles

Polysulfone modified epoxy resin was chosen as the matrix of composite materials. The epoxy/glass fiber/boron nitride composite materials were prepared by heat press molding. The effect of different size and content of BN on the thermal, mechanical, electrical properties and thermal stability of the composite was investigated. The results showed that thermal conductivity and thermal stability of the composite increased with the content of the BN particles, the thermal conductivity of the composite reached 0.672W/m·K when filled with 1μm BN at 20 wt. %. Impact strength and flexure strength of the composite increased initially and then decreased with the increasing content of BN. The electrical insulating property of the composite remained with the content of 20 wt. % BN.
Diabetes Mellitus Among Workers Exposed to Perfluorooctanoic acid

Background: One of the health problems that can be caused by Perfluorooctanoic acid (PFOA) is Diabetes mellitus (DM). However, the causal relationship between Perfluorooctanoic acid and DM is still unclear, so it is necessary to look for some evidence regarding this relationship. The search for evidence is also equipped with a seven-step assessment of occupational diseases therefore it can assist occupational health doctors who find patients with DM and have a history of exposure to glutaraldehyde. Methods: Literature search using Pubmed, Cochrane and JSTOR databases. The keywords used are “PFOA” OR “perfluoroalkyl substances” OR “perfluorooctanoic acid” AND “diabetes mellitus”. Article selection was performed using the defined inclusion and exclusion criteria. Selected articles will be critically reviewed based on etiological studies from the Oxford Center of Evidence-Based Medicine. Result: It was in 5 selected articles that met the inclusion and exclusion criteria. The main finding after a critical review was that PFOA may increase the risk of DM. Conclusion: There is a relationship between PFOA and the incidence of DM in health workers. To establish the diagnosis of occupational diseases in health workers who are exposed to PFOA, seven steps of diagnosis of occupational diseases are used.
EMPLOYABILITY OF ADVANCED IMAGE PROCESSING TO EFFECTIVELY COUNT AND CLASSIFY THE BACTERIAL COLONIES

Specification of Bacterial Colonies is needed in many fields, such as clinical analysis, biomedical examination for anticipation of severe illnesses, and the drug industry to avoid tainting items. Existing Bacterial Colony counter frameworks count Bacterial Colony physically, which is a tedious, less effective and dreary cycle. Henceforth, mechanization for calculating bacterial settlement was required. The proposed strategy counts these settlements naturally utilizing picture handling strategies. This strategy will give a more superior level of precision in the counting of bacterial provinces. The proposed method takes a picture of bacterial settlement and converts it into grayscale. Otsu thresholding is applied for the division of the image, further its change into a double shot. From that point onward, morphological activities are used to tidy up the picture by eliminating commotion and superfluous pixels. Distance and watershed changes are applied to double vision to make parts among covered and joint microscopic organisms. Locale properties and marking data of fragmented picture is utilized for counting of the bacterial province.
Improved reference genome annotation of Brassica rapa by PacBio RNA sequencing

The species Brassica rapa includes several important vegetable crops. The draft reference genome of B. rapa ssp. pekinensis was completed in 2011, and it has since been updated twice. The pangenome with structural variations of 18 B. rapa accessions was published in 2021. Although extensive genomic analysis has been conducted on B. rapa, a comprehensive genome annotation including gene structure, alternative splicing events, and non-coding genes is still lacking. Therefore, we used the Pacific Biosciences (PacBio) single-molecular long-read technology to improve gene models and produced the annotated genome version 3.5. In total, we obtained 753,041 full-length non-chimeric (FLNC) reads and collapsed these into 92,810 non-redundant consensus isoforms, capturing 48% of the genes annotated in the B. rapa reference genome annotation v3.1. Based on the isoform data, we identified 830 novel protein-coding genes that were missed in previous genome annotations, defined the UTR regions of 20,340 annotated genes and corrected 886 wrongly-spliced genes. We also identified 28,564 alternative splicing (AS) events and 1,480 long non-coding RNAs (lncRNAs). We produced a relatively complete and high-quality reference transcriptome for B. rapa that can facilitate further functional genomic research.
Um estudo de usabilidade de sites de empresas virtuais

This paper presents an analytical study of the non-functional requirement (NFR) usability with the objective of showing how they can interfere on the quality of a product. It differs from other articles once it presents an analysis of two sites: the Brazilian "ingresso.com. br", first ticketing company established in Brazil and the multinational "ticketmaster.com. br", one of world's leading ticketing company. These sites were chosen because the success of these companies relies, in part, on its ability to establish and maintain optimal communication with their clients. To perform this analysis, it was used a taxonomy that describes, enumerates and classify the requirements; then it compares the sites to verify which offers better usability. This paper describes characteristics that should be considered during the design of an e-commerce site, enhancing the importance of the NFR usability.
The Study on the Method of Film Thickness Control by Coating Spray Robot for Ocean Engineering

Combined with the anticorrosion character and requirement of the ocean engineering, the painting growth model sprayed by the coating spray robot is studied in this article. A special experiment platform is set up to carry out the test orthogonal experiment design method (OED), and enough data are recorded. Experimental data are used to build back propagation (BP) neural network as a sample set, while validated by the genetic algorithm (GA). Then the dry film thickness (DFT) growth model is established to analyze the relevance between dry film thickness and influence factors such as distance between the spray gun and surface, spray gun nozzle, velocity of the spray gun and so on. The model can provide important theoretical direction for the use of spray robot in the ocean engineering.Copyright © 2015 by ASME