Miracle-dz/UniFAR-FTUs huggingface dataset:
FREQUENCY ESTIMATION OF DISTORTED POWER SYSTEM SIGNALS USING MULTIPLE SIGNAL CLASSIFICATION ALGORITHM

In this paper a sub-space based fundamental frequency estimator of multiple signal classification (MUSIC) algorithm for distorted power system signals is proposed. Noise and signal sub-spaces are obtained from eigenvalue decomposition and desired frequency is estimated. Distortion level of the power system signals which have been observed from measurements may affect the accuracy of frequency measurement in a power system. Thus, the proposed method is employed to decompose noise sub-space for white and harmonic noises which are common in power systems. Computer simulations have been carried out for the performance analysis of the proposed method and the comparison results of the proposed method for different signal to noise ratios (SNR) are given. The fast tracking performance of the proposed approach in power system frequency estimation is emphasized.
In silico Prediction of Novel SARS-CoV 3CL pro Inhibitors: a Combination of 3D-QSAR, Molecular Docking, ADMET Prediction, and Molecular Dynamics Simulation

The Chymotrypsin-like protease (3CLpro) is a drug target in the coronavirus because of its role in processing the polyproteins that are translated from the viral RNA. This study applied 3D quantitative structure-activity relationship (3D-QSAR), molecular docking, and ADMET prediction on a series of SARS-CoV 3CLpro inhibitors. The 3D-QSAR study was applied using Comparative Molecular Field Analysis (CoMFA) and Comparative Molecular Similarity Indices Analysis (CoMSIA) methods, which gave the cross-validation coefficient (Q2) values of 0.64 and 0.80, the determination coefficient (R2) values of 0.998 and 0.993 and the standard error of the estimate (SEE) values of 0.046 and 0.091, respectively. The acceptable values of the determination coefficient (R2 test) to CoMFA and CoMSIA respectively corresponding to values of 0.725 and 0.690 utilizing a test set of seven molecules prove the high predictive ability of this model. Molecular docking analysis was utilized to validate 3D-QSAR methods and explain the binding site interactions and affinity between the most active ligands and the SARS-CoV 3CLpro receptor. Based on these results, a novel series of compounds were predicted, and their pharmacokinetic properties were verified using drug-likeness and ADMET prediction. Finally, the best-docked candidate molecules were subjected to molecular dynamics (MD) simulation to affirm their dynamic behavior and stability.
Do fertilizer and seed subsidies strengthen farmers’ market participation? The impact of Tanzania NAIVS on farmers’ purchase of agricultural inputs and their maize-selling activities

This paper examines whether the Tanzanian subsidy for inorganic fertilizer and improved maize seed since 2008 (NAIVS) promoted farmers to participate in both agricultural input and grain markets. The dataset comes from two waves of the National Panel Survey, which covers the whole area of Tanzania. Using Correlated Random Eﬀects Tobit and Probit models, we ﬁrst investigate whether the subsidy aﬀected farmers’ expenditure on all types of agricultural inputs including non-subsidized ones (organic fertilizer, traditional seed, pesticide/herbicide, labor, capital). Then, we estimate the subsidy impacts on the probability for farmers to sell maize and their maize sales. We ﬁnd the average beneﬁciary at least tripled the expenditure on subsidized inputs, without changing expenditure on non-subsidized inputs signiﬁcantly. Conversely, the probability for beneﬁciaries to sell maize and their maize sales did not increase signiﬁcantly. Finally, we address the concern that excessive concentration on subsidized inputs distorted appropriate allocation of production factors. Using a Stochastic Frontier model, we test whether the subsidy aﬀected farmers’ maize production eﬃciency. Consequently, the subsidy did not deteriorate the production eﬃciency. Our results show the subsidy promoted farmers’ participation in input markets without sacriﬁcing the consumption of non-subsidized inputs and production eﬃciency. Our results question the subsidy’s sustainability because it did not promote farmers’ maize-selling activities, a main income source for Tanzanian smallholders to purchase agricultural inputs.
Laboratory studies of trust between humans and machines in automated systems

In supervisory control, operators are expected to monitor automation and to intervene if there is an opportunity to improve system productivity or if faults develop which cannot be managed by the automation. Central to how humans interact with automation is the degree to which they trust the system to perform well and handle unforeseen events. This paper summarises recent laboratory experiments and theoretical models, both quantitative and qualitative, of the dynamics of trust between humans and machines and discusses the calibration of trust and the problem of allocating responsibility for control between human and machine.
Study of pressure applied to blood vessels using a mathematical model

In this paper we present a dynamic model of the heart’s pumping blood. To predict blood flow and pressure applied to the area of blood vessels (arteries - veins - capillaries). The fluid dynamics model is derived from the continuum equation and the Navier-Stokes equations. For an incompressible Newton flow through a network of cylindrical vessels. This paper combined a model of pressure applied to the walls of blood vessels with a (regular - turbulent) flow model of blood, and the viscoelastic deformation of the walls (arteries - veins - capillaries) was studied with different blood density and prediction of the effect of the thickness of the rubber wall on the flow and the resulting pressure on the blood vessels. The results of this study show that the viscous elastic wall of the blood vessels allows more physiological prediction of pressure and vascular deformation, and that blood flow with varying intensity is more in the aorta than in the rest of the vessels, and this is subject to wide dilation.
Double boost effect topology for three-phase AC/DC converter with unity power factor

This paper describes a three-phase AC/DC power converter involving a simple rectifier topology, which operates in PFC mode. This topology is close to another known, i.e. the VIENNA one. Two coils are involved in each phase. This permits to get a “Double Boost Effect” and improves the rectifier features. The mains currents are under control of three analog self-oscillating controllers. Simulations and experimental results illustrate the operation of the single and three phase rectifiers.
A new way of Reaching consumers: the Role of Marketing Related Mobile Factors on the Consumers' Acceptance of Multichannel Mobile Marketing

This research investigates factors that may affect the level of acceptance of mobile marketing and determines if there is a relationship between these factors and the level of acceptance of mobile marketing. It separately investigates the most influential factors affecting the level of acceptance. This research was to investigate as well if there were differences in the readiness of undergraduate students regarding acceptance and factors leading to acceptance in terms of gender, age, education, and place. The research depends upon a sample of undergraduate students studying in universities. The researcher employed statistical techniques such as descriptive, correlation analysis, linear multiple regression, one-way Anova, and the post hoc test. The main findings from this research are that factors affecting acceptance were related to the level of acceptance of mobile marketing in the research field of reality. There is a significant difference between undergraduate students regarding factors affecting acceptance of mobile marketing; also there is a significant difference between undergraduate students regarding their readiness of acceptance in terms of some demographic characteristics.
INFRASOUND SENSITIVITY IN THE PLAICE

Summary The sensitivity of plaice (Pleuronectes platessa) to infrasound has been examined using a seawater-filled test chamber suspended by steel wires like a swing and driven by a vibrator. The sensitivity to low-frequency vibrations was determined using the cardiac conditioning technique. All plaice readily responded to infrasound down to 0.1 Hz, which was the lowest frequency tested, with threshold values of approximately 4xlO~ 5 ms~ 2 rms. This sensitivity is comparable to infrasound thresholds found in other fish species and it agrees with the acceleration thresholds for plaice in the frequency range 30-100 Hz. The water movements relative to the fish surface produced during stimulation were below lateral-line thresholds. The inner ear otolith organs are thus probably responsible for the observed responses to infrasound. The hearing capabilities of plaice may be explained by these organs functioning as slightly underdamped harmonic oscillators with a resonant frequency close to 100Hz.
Program Kampus Mengajar (PKM) Sebagai Usaha Peningkatan Pembelajaran Peserta Didik di SDN 127 Sungai Arang, Bungo Dani, Kabupaten Bungo, Provinsi Jambi

Program Kampus Mengajar merupakan salah satu Program dari Merdeka Belajar Kampus Merdeka (MBKM) yang berupa asistensi mengajar untuk memberdayakan mahasiswa dalam membantu proses pembelajaran di Sekolah Dasar di berbagai Desa/Kota, salah satunya adalah SD Negeri 127/II Sungai Arang Kecamatan Bungo Dani, Kabupaten Bungo, Provinsi Jambi. Pada program ini, mahasiswa bertanggung jawab dalam membantu pihak sekolah pada proses Mengajar, membantu adaptasi teknologi, dan membantu administrasi. Selain itu, mahasiswa memiliki tanggung jawab dalam memperbaiki Akhlaq siswa dan meningkatkan motivasi serta minat belajar siswa selama masa pandemi ini. Hasil dari Program ini diharapkan tumbuhnya kepekaan sosial dalam diri mahasiswa untuk membantu masyarakat sekitar, mengasah keterampilan berpikir dalam bekerja bersama baik dengan guru, maupun dengan mahasiswa lintas bidang ilmu dalam menyelesaikan masalah yang dihadapi, mengembangkan wawasan, karakter dan Soft Skills mahasiswa, sehingga dengan kolaborasi diatas akan tujuan-tujuan yang ada dalam program kampus mengajar tercapai.
Effects of Site Design on Pedestrian Travel in Mixed-Use, Medium-Density Environments

Whether high or low incidence of pedestrian travel in mixed-use, medium-density environments is due to site design characteristics, and specifically to presence of direct, continuous, and safe pedestrian systems, is examined. Twelve neighborhood centers or sites in the Puget Sound area of Washington were selected by matching gross residential density, median income, automobile ownership, and intensity and type of neighborhood commercial development. Pedestrians and bicyclists were recorded that traveled into the commercial area. A clear break emerges between urban and suburban sites. The average urban pedestrian volume is 37.7 pedestrians per hour per 1,000 residents, which is 3 times higher than the 12.5 pedestrians per hour per 1,000 residents in suburban sites. These results strongly support the hypothesis that, when holding other variables constant, the urban versus suburban difference in route directness and completeness of pedestrian facilities (namely, block size and sidewalk length) affects pedestrian volumes. The research also questions the common belief that people do not walk in the suburbs. Given appropriate land use conditions, pedestrian facility improvement programs in suburban areas can support pedestrian travel and have a significant influence on mode choice.
Exploring Criteria and Critical Factors for Governmental Projects Implementation in Yemen: A Case Study

Success is the ultimate goal to be achieved in any project; consequently, studies concerning project success are essential. The purpose of this study is to evaluate significant success criteria and identify critical success factors to ensure project success. Furthermore, this research aids in changing the method of project implementation in Yemen to help conserve time, money, and natural resources. To explore the process and project implementation in Yemen; to evaluate the criteria for time, cost, and quality determination; and to identify the success and failure factors of project, are the three goals of this study. Case study method and structured questionnaire survey method are applied in this research. Fieldwork involves the investigation of the stages of a project in Yemen: from the design stage, the tender stage, and to the construction stage. Thematic narrative analysis is conducted to analyze the case studies. Data are examined with the statistical package for social sciences (SPSS). Three success criteria have been recognized, twenty success factors have been ranked and documented, while thirty-one failure factors have been identified. Fieldwork in Yemen revealed that professionals involved in project implementation can develop the construction industry if subjected to strict regulations.
Validation of academic motivation scale among medical students using factor analysis and structural equation modeling: Middle Eastern perspective

BACKGROUND: Demanding careers like medicine requires a lot of motivation and the Academic Motivation Scale (AMS) developed by Vallerand et al. (1992) is an instrument to measure motivation. This study evaluated the validity and reliability of AMS among medical students in the Middle East. MATERIALS AND METHODS: This was a methodological research utilizing a convenient sampling technique. AMS scale comprising 28 items subdivided into seven subscales was administered to 900 students (281 students returned the filled AMS). Data were analyzed using the descriptive statistics, one-way ANOVA, and t-tests. Exploratory factor analysis and Cronbach's alpha were used to evaluate the validity and reliability of the scale, respectively. RESULTS: There was a statistically significant difference between both genders in overall scores (P = 0.015*), two subscales, namely “Identified Regulation” (P =0.017*) and “Stimulating Experience” (P = 0.015*), with females showing higher value. Second-year students (n = 91) had significantly higher score (10.9 ± 4.1) for “Amotivation” (P =.001*) and first-year students (n = 48) had significantly higher score (16.2 ± 3.0) for “Achievement” subscale (P =.014*). P < 0.05 was considered statistically significant with 95% confidence interval. No statistically significant difference was observed between the groups based on nationality or age. Bartlett's test of sphericity was significant (Chi-square: 2988.010; df = 278; P < 0.001). Kaiser–Meyer–Olkin was 0.890. Principal component analysis with varimax rotation extracted seven factors corresponding to the original items of AMS questionnaire. All subscales correlated positively except “amotivation. ” Structural equation modeling revealed the relation between observed and unobserved variables. DISCUSSION: This study demonstrated that AMS is valid and reliable for application among Middle East medical students, without needing any modification. AMS has widespread application in medical education as it impacts learning outcomes. CONCLUSION: This study demonstrated that AMS is valid and reliable for application among the Middle East students without needing any modification.
W-band ferrite-dielectric image-line field displacement isolators

The authors present the results of theoretical and experimental studies of image-line field displacement isolators operating at W-band (90-100 GHz). Isolators were fabricated using GGG (gadolinium gallium garnet), and GaAs as the dielectric and TT2-111 nickel-zinc ferrite and epitaxial yttrium iron garnet as the nonreciprocal medium. Isolators with S/sub 21/-S/sub 12/ ratios of greater than 20 dB have been designed, fabricated, and tested. The authors present the results of the theoretical analysis of a simplified parallel plane waveguide model of a field displacement isolator. The model gave a clear picture of the forward and reverse propagation characteristics and allowed for the optimization of the design of the isolator. Experimental measurements were carried out on a range of structures utilizing a millimeter-wave vector network analyzer operating at 90-100 GHz. <<ETX>>
U.S. Department of Energy Commercial Reference Building Models of the National Building Stock

The U.S. Department of Energy (DOE) Building Technologies Program has set the aggressive goal of producing marketable net-zero energy buildings by 2025. This goal will require collaboration between the DOE laboratories and the building industry. We developed standard or reference energy models for the most common commercial buildings to serve as starting points for energy efficiency research. These models represent fairly realistic buildings and typical construction practices. Fifteen commercial building types and one multifamily residential building were determined by consensus between DOE, the National Renewable Energy Laboratory, Pacific Northwest National Laboratory, and Lawrence Berkeley National Laboratory, and represent approximately two-thirds of the commercial building stock.
International Journal of Advanced Research in Computer Science and Software Engineering

— Component-based software engineering (CBSE) has emerged as an approach that offers rapid development of system using fewer resources and effort. The CBSE gives the idea of reuse and cutting down the development cost. Thus testing of components becomes more complicated when developers are not provided with internal information of these components. As a result of this, understanding control data flow in black box components is a challenge. Component-based software facilitates development of complex systems by allowing black box testing of reusable components. Testing of black box components is a challenging area of research. Our research aims at finding the existing black box component testing techniques and challenges in CBSE. The systematic literature survey is based on International Journals collected from multiple-stage selection process. These journals have been published within the time span of 2004-2010.
Analysis of feedback for higher order polarization-mode dispersion mitigation of NRZ 40-Gb/s optical transmission

First-order polarization-mode dispersion (PMD) compensation by means of a polarization controller and a differential delay line is not sufficient to guarantee error-free transmission for 40-Gb/s channels when higher order effects severely increase signal distortion. Higher order mitigation is possible by cascading more than one first-order block. However, only two-stage or three-stage devices remain simple enough to be actually controlled. The performance of such higher order PMD compensators is evaluated by means of numerical simulations. Two different feedback signals have been used, demonstrating that first-order and higher order PMD distortion of nonreturn-to-zero (NRZ) pulses at 40 Gb/s can be strongly mitigated for instantaneous values of the differential group delay (DGD) up to the bit slot, when the compensator is properly controlled.
Magnetic-geared motors with high transmission torque density

Purpose – Early magnetic-geared motors have a high transmission torque density. However, the torque due to the coil is low because the permanent magnets in the stator become a large magnetic resistance when the current is applied to the coil. The purpose of this paper is to propose magnetic-geared motors which have a high transmission torque density and torque due to the coil. In addition, the proposed magnetic-geared motors are compared with past magnetic-geared motors and the effectiveness is verified by using finite element analysis. Design/methodology/approach – A new magnetic-geared motor which has permanent magnets in the stator slot are proposed. The torque due to the coil increases by removing permanent magnets at the tip of the stator of past magnetic-geared motors. The permanent magnets placed in the stator slots are all magnetized to the outward direction and then the stator teeth are all magnetized to the inward direction. The maximum transmission torque and torque constant are compared. Findi.
A Framework for Accelerating Transformer-Based Language Model on ReRAM-Based Architecture

Transformer-based language models have become the de-facto standard model for various natural language processing (NLP) applications given the superior algorithmic performances. Processing a transformer-based language model on a conventional accelerator induces the memory wall problem, and the ReRAM-based accelerator is a promising solution to this problem. However, due to the characteristics of the self-attention mechanism and the ReRAM-based accelerator, the pipeline hazard arises when processing the transformer-based language model on the ReRAM-based accelerator. This hazard issue greatly increases the overall execution time. In this article, we propose a framework to resolve the hazard issue. First, we propose the concept of window self-attention to reduce the attention computation scope by analyzing the properties of the self-attention mechanism. After that, we present a window-size search algorithm, which finds an optimal window size set according to the target application/algorithmic performance. We also suggest a hardware design that exploits the advantages of the proposed algorithm optimization on the general ReRAM-based accelerator. The proposed work successfully alleviates the hazard issue while maintaining the algorithmic performance, leading to a $5.8\times $ speedup over the provisioned baseline. It also delivers up to $39.2\times /643.2\times $ speedup/higher energy efficiency over GPU, respectively.
Matching analysis of deposition defined 50-nm MOSFET's

NMOS- and PMOS-transistors with geometries down to 50 nm are fabricated by conventional optical lithography using a deposition- and etchback technique for masking the polysilicon layer. The significant process steps, especially the specific gate definition process and the doping of the source/drain-extensions, are explained. These transistors are then characterized and proceedings to increase their performance are suggested. The local and global matching of sub-100-nm transistors is analyzed by a large number of measurements and compared to typical literature values and simulations. The law of area (/spl sigma/V/sub T//spl prop/1//spl radic/(W/spl middot/L)) is confirmed for device dimensions from W/L=10 /spl mu/m/1 /spl mu/m down to W/L=1 /spl mu/m/50 nm. Based on this law of area, considerations to reduce the threshold voltage scattering for sub-100-nm transistors will be suggested.
Global Value Chain Restructuring: Challenges, Opportunities and Strategies for China

Global value chains (GVCs) have entered a new stage of restructuring characterized by trends towards localization, regionalization and diversification. These trends can be attributed to the evolution of the international division, irrational responses to crisis shocks, and trade protectionism. In this context, China 's industrial and supply chain upgrades face both opportunities and challenges which require navigating the adverse effects of industrial re-shoring, unfair technology competition, and changes in the global industrial layout. Yet, such challenges may create pressures for China to accelerate innovation, overcome the low-end lock-up effect by creating regional value chains, and broaden international cooperation. China needs to explore an effective strategy to defuse risks and seize opportunities. On one hand, China should influence the restructuring of GVCs evolution and strengthen its supply chains by playing an active role in economic globalization and the international division. On the other hand, China should proactively respond to GVCs restructuring amid rising trade protectionism, defuse risks from trade protectionism by opening wider to the outside world, and strive to upgrade industrial and supply chains while enhancing the security and stability of their nation.