Miracle-dz/UniFAR-FTUs huggingface dataset:
AN ADAPTIVE NEURO-FUZZY INFERENCE SYSTEM APPROACH FOR PREDICTION OF POWER FACTOR IN WIND TURBINES

This paper introduces an adaptive neuro-fuzzy inference system (ANFIS) model for predicting the power factor of a wind turbine. This model based on the parameters involved for NACA 4415 and LS1 profile types with 3 and 4 blades. In model development, profile type, blade number, Schmitz coefficient, end loss, profile type loss, and blade number loss were taken as input variables, while the power factor was taken as output variable. After a successful learning and training process the proposed model produced reasonable mean errors. The results on a testing data indicate that the ANFIS model is found to be more successful than the ANN approach in estimating the power factor.
High step-up converter with capacity of multiple input

In this paper, a multiple-input high step-up boost converter is presented for grid-connected photovoltaic power generation system. Firstly, the derivation of the converter with dual input is presented and its operation principle and steady state performance arc analyzed in detail. Secondly, the n-input high step-up boost converter made up of n boost cells is deduced. Its high step-up ratio and the relationship among the input currents are analyzed. Finally, an experimental prototype rated 100 W is built and the experimental results are given.
Detection of methane in the air using a laser Raman spectrometer

This paper demonstrates the results of measuring the concentration of methane in atmospheric air using the developed laser Raman spectrometer. The integrated intensity method is used to determine concentrations from experimental spectra. Two methods of background correction near the methane peak are considered. It was found that the sensitivity limit of the spectrometer is less than 100 ppb. A comparison between measurements obtained using the presented setup and the CRDS gas analyzer showed sufficient agreement.
Quality improvement: what is in it for the patient?

The improvement of health care service has a great effect on patient satisfaction. During the service delivery, the health care organization attempts to answer the reasonable expectations of patients. The expectations relate to many service dimensions, among them the phone system, appointment availability and waiting times. The research questions of this study are: can the implementation of quality initiatives improve patient satisfaction with the phone system, appointment availability and waiting times and do patients from diverse cultural backgrounds exhibit different levels of satisfaction? The study was undertaken in a public clinic, with a culturally diverse clientele, including 194 patients. The authors use a combination of the longitudinal and cross-sectional research design to test the propositional model. The findings show that the implementation of the quality initiative significantly improved patient satisfaction with the appointment availability and waiting time. On the other hand, the implementation of the quality initiative did not improve patient satisfaction with the phone system. Some culturally diverse patients exhibited different levels of expectations of the care provider and quality in terms of patient satisfaction with the appointment availability.
Numerical and Experimental Analysis of Wideband E-Shape Patch Textile Antenna

In this paper, we present a wideband planar E- shaped textile antenna and study its performance numerically and experimentally. The textile material and radiation patch shape provide the antenna a wide working band (2.25GHz{2.75GHz). A digital human model is established to numerically analyze the afiect of human body on antenna. Experiments are carried out to study the performance changes of antenna in difierent states which may be experienced in the potential applications. These states are antenna on human body, antenna getting bent, and antenna after getting wet. The simulated and measured results in free space and on human chest show good agreement with each other. From the study it is also found that the textile antenna's performance does not get deteriorated in these states. Therefore, the wideband planar E-shaped textile antenna is suitable for body-centric wireless communications with high quality.
Triad Dynamics: Structural Holes, Cliques and the Tragedy of Brokers

Network research has been criticized for neglecting causes of network structure in favor of its effects. The ongoing discussion regarding the performance effects of structural holes vs. closure is a lively example of this behavior. Furthermore, recently there has been a call for moving away from the static view of networks into a more dynamic approach. In this paper, we address these issues by looking at the dynamics of the structural holes. We conceptualize structural hole argument as a triad and we identify alternative structures which these structural hole triads can evolve into. Basing our arguments on dynamic capabilities and the relational view of the firm, we theorize about the condit
The determinants of technology transfer through networks: an empirical study on the aerospace industry

This study examines the factors affecting technology transfer through international R&D consortiums in the aerospace industry. We conceptualise repeated R&D consortiums as a network arrangement and analyse the characteristics of ties and the industry's network arrangements to assess a firm's access to unique technology. The sample used in this study is 125 cases of international R&D consortiums in the aerospace industry, from January 1980 to December 2000. The result suggests a positive correlation between the strength of ties and the similarities between firms and the successful transfer of unique technology.
Experimental analysis of different measurement techniques for characterization of millimeter‐wave mixers

This article compares for the first time three well‐known procedures for characterizing the noise temperature and conversion loss of a millimeter wave mixer. To carry out this study, a 183 GHz subharmonic mixer has been measured using three common procedures, that is, the “attenuator,” the “gain,” and the “noise injection” procedures. Furthermore, for every measurement procedure, three different detection methods have been used; a broadband power meter, a yttrium iron garnet filter working together with a broadband power meter, and a spectrum analyzer. The “gain procedure” has turned out to be the most stable one in terms of less variation between consecutive values and flatter results along all the frequency range. Results obtained with every detection method are consistent with each other, showing a similar performance of the mixer independent of the detection method used. In addition, the effect of the inclusion or omission of an isolator between mixer and intermediate frequency pre‐amplifier has also been evaluated. For the first time, clear conclusions about its influence are driven. The inclusion of the isolator has culminated in more reliable results, although the measured NT values are increased. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1441–1447, 2014
An Optimization Approach to Analysis of Requirement Pre-Processing in Software Engineering

In this paper, The researchers reviewed the existing requirements engineering processes to identify the actual requirements' of the customer for the for the development purpose. The requirements of the customer might be conflicts, incomplete, unidentified, undecided contradictory or ambiguous at the time of initial stage of development. The objective of this is to refine the actual requirements of the customer or organization's need through the pre- processing process which can be implemented in development environment . This research paper is based on the existing research article and analysis of requirements engineering processes.
Development of P(VDF-TrFE) ultrasonic transducers operating at 50-120 MHz

Performance of polymer ultrasonic transducers depends greatly oil fabrication methods at frequencies above 50 MHz. Focused poly(vinylidene fluoride-trifluorethylene) [P(VDF-TrFE)] single element transducers in the range of 50-120 MHz and of f-numbers less than 3 were developed using various techniques. A 3 mm 45 MHz transducer was fabricated by spin-coating copolymer directly onto a spherically shaped aluminium substrate. Comparison with a like design press-focused device showed similar bandwidth and center frequency characteristics. Using a conductive carbon backing, the center frequency of a 3 mm transducer was increased by more than 20% over a conventional conductive backing material. A 1.2 mm transducer using a light, nonconductive backing exhibited a 102 MHz center frequency and 35% bandwidth.
Development of Electromagnetic Tomography (EMT) for Industrial Applications. Part 1: Sensor Design and Instrumentation

This paper concentrates on sensor and instrumentation issues. The systems studied can image the distribution of either electrically conducting material (σ > 1 S/m) and / or magnetically permeable materials (μR >1). The technique has analogies with other forms of electrical tomography such as those based on resistance or capacitance methods. The paper describes the overall operation of an electromagnetic tomography (EMT) system, the design of the sensor array and associated conditioning electronics, and finite element simulation studies on the sensor array with selected results. The system is controlled from an embedded PC and image capture rates are listed. Related topics such as the range of image reconstruction algorithms used, the performance of the systems in terms of image resolution / reconstruction rates and potential industrial applications of the technique are discussed.
Design, Modeling, and Analysis of a Novel Microgripper Based on Flexure Hinges

A new 2-DOF microgripper, which can perform the processing of the objects assembly and biological cells injection, is designed and modeled in this paper. The clamping action of the microgripper with the x direction is completed, however, when anything is clamped by the end effector, which can be completely driven by an actuator generated in y direction, at lastclamping and pushing motion are realized. The flexure hinge, which takes place of the conventional joint, is used as the translational and rotational hinges in the new structure. Otherwise, the whole microgripper is monolithic processing, which can efficiently overcome the disadvantages of the conventional hinge with friction, backlash, anderrors caused by the hinge assembly. Firstly, a kind of novel microgripper is designed in this paper, which can accomplish two-dimensional independent motions including a separate grip and single track push without interfering with each other. The bridge type amplifying structure with two-end output is adopted in the gripper to increase the motion range and the capacity of the microgripper. The piezoelectric actuator with fast response and high resolution is used as the drive element. Secondly, the geometrical and kinematical models are established and the formulas of the amplifying ratio, stiffness, maximum stress, and the natural frequency of this model are calculated, respectively. Finally, the FEM (finite element modeling) based on ANSYS software is built up to validate the formulas.
Denoising Algorithm Based on Correlation of Inter Scales Wavelet Coefficient for Damage Signal of Wire Rope

In order to remove noise in the broken wire signal of wire rope, a new denoising algorithm based on the correlation of inter scales wavelet coefficient was proposed. Because the wavelet coefficient of signal has strong correlation and the wavelet coefficient of noise does not has obvious correlation, in the process of calculating threshold, an inter scales correlation factor was constructed considering the part specialty of next scale on the same position after wavelet transform. The proposed factor can adaptively adjust threshold on the position of signal and noise, thereby otaining good denoising effect and holding the break information in original signal. The actual processing effect of simulation and damage signal of wire rope shows that the proposed method, compared with the classical threshold, not only effectively removes noise in original signal and improve the signal noise ratio(SNR),but also retains the break information of inspected damage signal of wire rope.
Conversion of Cellulose into Value-Added Products

Rapid industrialization has led to development of various platform chemicals and fossil fuel refinery is one of the mainstreams for their production. However continuous depletion of fossil fuels reserves has led an urge to look for alternate source of feedstocks. Among various renewable sources, biomass is found to be most sustainable as it is replaced naturally. Biomass by virtue of its nature is comprised of various recalcitrant polymers and cellulose is one of them, which can be used for the generation of various platform chemicals. This chapter gives a background of cellulose and illustrate platform chemicals that can be produced from cellulose.
Risk of Recurrent Stillbirth in Subsequent Pregnancies

Compared with women who have a live birth, women who experience a stillbirth in a first pregnancy have a higher risk of stillbirth in any subsequent pregnancy. OBJECTIVE: To compare the prospective risk of stillbirth between women with and without a stillbirth in their first pregnancy. METHODS: We conducted a cohort study using perinatal data from Finland, Malta, and Scotland. Women who had at least two singleton deliveries were included. The exposed and unexposed cohorts comprised women with a stillbirth and live birth in their first pregnancy, respectively. The risk of stillbirth in any subsequent pregnancy was assessed using a Cox proportional hazards model. Time-to-event analyses were conducted to investigate whether first pregnancy outcome had an effect on time to or the number of pregnancies preceding subsequent stillbirth. RESULTS: The pooled data set included 1,064,564 women, 6,288 (0.59%) with a stillbirth and 1,058,276 with a live birth in a first pregnancy. Compared with women with a live birth, women with a stillbirth in the first pregnancy were more likely to have a subsequent stillbirth (adjusted hazard ratio [aHR] 2.25, 95% CI 1.86–2.72). For women with more than two pregnancies, the difference in risk of subsequent stillbirth between the two groups increased with the number of subsequent pregnancies. Maternal age younger than 25 years or 40 years and older, smoking, low socioeconomic status, not having a partner, pre-existing diabetes, preeclampsia, placental abruption, or delivery of a growth-restricted neonate in a first pregnancy were independently associated with subsequent stillbirth. Compared with women with a live birth in the first pregnancy, women with a stillbirth were more likely to have another pregnancy within 1 year. The absolute risk of stillbirth in a subsequent pregnancy for women with stillbirth and live birth in a first pregnancy were 2.5% and 0.5%, respectively. CONCLUSION: Compared with women with a live birth in a first pregnancy, women with a stillbirth have a higher risk of subsequent stillbirth irrespective of the number and sequence of the pregnancies. Despite high relative risk, the absolute risk of recurrence was low.
Investigating the role of business processes and knowledge management systems on performance: A multi-case study approach

In the ever-changing and competitive market place, organisations continuously need to improve their competitive advantage. One method to accomplish this is to form collaborative networks. Both knowledge management (KM) and KM systems play a pivotal role in the success of collaborative networks since information sharing and knowledge assets are so critical to the network. There has been a vast amount of research on KM systems but very little is known about how it affects individual and organisational performance. Drawing on the task–technology fit theory, in this study, we explore the fit or alignment between business process (task) and KM systems (technology) and its impact on KM systems utilisation based on multiple case studies. Subsequently, we investigate the impacts of both the task–technology fit and KM systems utilisation on individual and business performance. This paper contributes to the collaborative network/KM literature in several ways. First, it extends the task–technology fit theory to an important context of collaborative network/KM. Second, it replaces task with business process, which has the potential to help explain KM systems’ success on business performance. Third, the paper explores the positive impact of task–technology fit on KM system utilisation and business performance. Fourth and finally, the study provides insight into the future development of KM systems and how to better align them with managerial purposes.
A LES study of turbulent flow around twisted and tapered cantilevers

A study was performed on the passive control of Vortex-Induced Vibrations (VIV) for three different geometric forms of cantilever twisted/taper/taper-twisted subjected to a turbulent flow. The method used is LES with dynamic Smagorinsky model, TVD spatial scheme and backward difference scheme in time. The results show a reduction of the drag coefficient (Cd) on mean by 5% and a reduction of the RMS of lift coefficient (Cl) by 50/80% for taper/twisted configuration, which is consistent with related studies. DMD analysis also show that the shear layer around the cantilever is desynchronized but further downstream it re-synchronize prior to the re-attachement point of the flow. This lead to a larger wake and street vortex with shape that reflects the deformation of the cantilever.
A Three-Bit Monolithic Phase Shifter at V-Band

This paper describes the design and performance of a three-bit monolithic phase shifter at V-band. The selected circuit approach was a reflection phase shifter with switched delay lines. Schottky diodes were used as the switching elements. Tested at 62.5 GHz, the RMS phase error was 2.7°, the insertion loss 10.8 +- 1.8 dB (including fixture loss), and the VSWR was better than 2.1:1. The maximum DC power requirement was 40 mW.
Role of HDAC6 and Its Selective Inhibitors in Gastrointestinal Cancer

Worldwide, cancer is the second leading cause of mortality after cardiovascular diseases. Among the numerous malignant tumors in human, digestive system cancers are the primary cause of morbidity and mortality. Acetylation and deacetylation are crucially involved in cancer occurrence and development; in addition, the deacetylation process is regulated by histone deacetylases (HDACs). Among the 18 human HDACs that have been reported, HDAC6 has been widely studied. There is upregulated HDAC6 expression in numerous types of tumor tissues and is closely associated with clinicopathological characteristics. Moreover, several HDAC6 inhibitors have been identified; furthermore, there has been extensive research on their ability to inhibit the growth of many tumors. This review summarizes the roles of HDAC6 in different primary digestive system malignancies.
Structural Design and Analysis of the Toroidal Heliostat

Heliostat is an important component in the solar power tower station because its cost, optical performance, and mechanical performance have great influence on the overall property evaluation of the station. The T-shape heliostat tracking the sun in the azimuth-elevation mode has been commonly developed and successfully applied in many stations. In recent years, some researchers have developed spinning-elevation heliostats and have analyzed their optical performance. In this paper, the structure of a 16 m 2 toroidal heliostat tracking the sun in the spinning-elevation mode is designed, and the mechanical performance of the structure under wind load is analyzed by means of the finite element method. The trends of force, moments, and vibration modes with the change in elevation have been presented, and the classic status is analyzed in detail when their maximum values occur. Furthermore, the advantages and disadvantages of a toroidal heliostat in reducing the cost are discussed compared with those of a traditional T-shape heliostat.
GA Implemented for Distribution Generation Parameters in Ieee and Indian Utility System

3 Abstract: The introduction of Distributed Generation (DG) devices for power system improves the stability, reduction in losses and increase in the cost of generation. In this paper Genetic Algorithm (GA) is used to optimize the various parameters. The various parameters taken into consideration are their type, location and size of the DG devices. The simulation was performed on a distribution system with various types of DG's and modelled for steady state studies. The optimizations results are simulated using GA. The results reveal the benefits of the proposed method, for solving simultaneous optimization problems of DG devices in a power system network.
“The adoption and implementation of performance measurement process in Italian public organisations: the influence of political, cultural and rational factors”

One of the main challenges in the field of performance measurement and management in public organisations is about how to use and manage performance measures effectively. This study aims to examine the stages involved in the process of utilisation of performance measures, i.e. adoption and implementation, and to investigate the political, cultural and rational factors that affect this process. For this purpose, a theoretical model from the literature has been extended and tested by using the data gathered through a survey involving the managers of several departments of Italian regions and municipal districts. The final sample has included 201 usable observations. The data analysis has been conducted using structural equation modelling. A significant cause-and-effect relationship was found between the stages of adoption and implementation. Moreover, it was found that adoption is driven significantly by rational factors. Otherwise actual implementation is influenced by factors addressed both by political considerations, such as external interest groups and by rational evaluations such as resources. The effects of other rational and cultural factors on implementation stage are mediated by adoption.
A Review of Super-Resolution Methods for Nonorthogonal Analysis of Highly Correlated Signals in Noise

Highly correlated signals exist in many applications of different fields of physics and engineering. But existing techniques for signal estimation and detection are either too complex or do not perform adequately when the observations consist of highly correlated signals in noise. Thus, this paper presents a review of three important super-resolution methods to discuss their characteristics and limitation for extracting the highly correlated signals in noise.