Miracle-dz/UniFAR-FTUs huggingface dataset:
Large signal design of broadband monolithic microwave frequency dividers and phase-locked oscillators

This paper presents a design method for phaselocked devices such as frequency dividers or injection-locked oscillators. The method requires a full nonlinear analysis of the circuit. This analysis relies upon harmonic balance techniques and is suitable for monolithic circuits simulation. First, a modified formulation of the general harmonic balance equation is proposed which includes the presence of probes. These probes allow us to suppress the degenerated solution of the HB equation in autonomous cases. Moreover, a global stability analysis of phaselocked regimes is carried out. It provides invaluable information on the nonlinear behavior of the device. In particular, synchronization bandwidths as well as power ranges for which the circuit can be synchronized are obtained from the stability loci drawn in the parameter space. All these features have been used to design a broadband monolithic frequency divider, and the simulated and experimental results have been compared with very good accuracy. Therefore, the method proposed is a very useful tool for the design of potentially unstable circuits. >
RoboCup Rescue Team Description Paper SGBot

—This paper describes the mobile rescue robot developed by team SGBot for RoboCup Rescue Robot League. Our team focuses on small-sized autonomous system and the robot is designed to have the capability of fully on-board computation. To accomplish this ability, an embedded AI computing device and a mini PC are installed. Supported by stereo cameras, LiDAR, IMU and other sensors, rich environment data could be gathered, which will be used for computation of SLAM, path planning and object detection in real time. Equipped with triangular track wheels and a mechanical arm, the robot could explore and interact with the disaster environment. A web-based user interface will be developed for easily monitoring the system from any personal devices, like laptops and smart phones.
Note on solving inventory models from operational research view

In this article, we will show that an optimal solution can be derived without complicated mathematical derivation, an improvement on the paper [Yang, G.K. , et al., 2011. Note on inventory models with Weibull distribution deterioration. Production Planning & Control, 22 (4), 437–444] that was recently published in Production Planning & Control. We extend their inventory model with a generalised deterioration and backlog rates. Our findings will allow researchers to consider inventory models directly from the view of operational research instead of complex analysis.
Happiness and Development: the E¤ect of Mental Well-being on Economic Growth

This paper examines the impact of overall happiness of citizens on economic performances across countries. We exploit the variation in sex imbalance, a factor that impedes normal mating and thus lowers overall happiness level, to identify the causal e¤ect of happiness on economic growth. The results show that happiness has a positive and statistically signi cant e¤ect on economic growth. Speci cally, other things being equal, a one-standard-deviation higher happiness could raise growth rate by two percentage points. Moreover, we investigate the possible channels through which happiness a¤ects economic growth and nd that the e¤ect of happiness is likely to work through life expectancy and investment.
Impact of Customer Satisfaction on Profitability of the Indian Automotive Industry – A Case of Select Companies

There are two concepts of the term ‘profit’ -the owner-oriented concept and the operational concept. According to the owner-oriented concept, profit refers to that part of the income which is paid to the suppliers of equity capital, who are the owners of the business. In this context it is described as profitability. According to the operational concept, profit refers to a situation, where output exceeds input, which signifies economic efficiency. In this context, as a test of economic efficiency, profit provides the yardstick by which economic performance of a business can be judged. Profit leads to efficient allocation of resources and also ensures maximum social welfare.
Airports and Bicycles

Case studies examined how airport operators addressed bicycle access to their properties and the motivations and obstacles that they faced in light of new policies to integrate bicycles, along with transit and walking, into transportation planning, design, and construction and to increase the bicycle's role in the transportation system. Eight influential elements that emerged from the review of policy documents and research literature were used to guide interviews: governance structure, location, access roads, self-perceived environmental stewardship, spending restrictions on nonaviation transportation improvements, proximity to transit, policies and mandates to reduce environmental impacts, and land use constraints. Seven cases were selected on the basis of their inclusion in studies on key aspects of airport ground access: Oakland International Airport, San Francisco International Airport, and Los Angeles International Airport, California; Seattle–Tacoma International Airport, Washington; Boston Logan International Airport, Massachusetts; Minneapolis–Saint Paul International Airport, Minnesota; and Portland International Airport, Oregon, an exemplar recommended by several informants. The discussion was limited to employee bicycle access, the focus of airport operators that invested in programs to reduce single-occupancy-vehicle travel at airports. During aggregation of the interviews, replicable approaches for improving bicycle access were identified, as were examples of innovative funding for multimodal access that used revenues generated through passenger facilities charges. The following areas are suggested for additional research: commute needs of airport employees, mode choice for ground access, and airport operator costs and benefits of bicycle access investments.
Is China Threat Theory a Construction? A Critical Review

China is rising. The United States of American remains a global hegemon although China is likely to overtake it. Some realists and liberalists are predicting that this rise of China may lead to a conflict with the United States of America. This is called China threat theory. Paul Ribeiro thinks this is a constructed fear which is emanating from the West looking at China from their own lens. He however says China may be feeding into this fear by giving wrong signals. China is not emphasizing on advantages that her rise brings to the world at large. This paper attempts to look at this fear in the context of China’s relationship with Africa. Africa could be the battle ground for influence for the two superpowers. The reviewers think that Africa has no reason to fear. Africa can contribute to the reconstruction of a mutual relationship in which China, the United States of America, and Africa can build mutual trust among the three actors.
Capturing shock waves using an open-source direct simulation Monte Carlo code

This paper presents a comparison between experimental and numerical investigations of hypersonic flows over complex geometries. Two hypersonic cases have been considered: Ma 15.6 flow over a 25 ◦ / 55 ◦ bi-conic cylindrical object and Ma 20.2 flow over a planetary probe geometry. Experimental results are from the literature. Numerical results are from a new open-source DSMC code called dsmcFoam. The two cases simulated by dsmcFoam show good qualitative and quantitative agreement with the experimental data. This paper also presents very good agreement, between dsmcFoam and another DSMC code, of aerodynamic forces incurred by the Apollo Command Module.
SHALLOW SUBSURFACE DRAINS TO REDUCE NITRATE LOSSES FROM DRAINED AGRICULTURAL LANDS

Nitrate losses from subsurface drainage systems remain an important environmental concern. Data were collected from two drainage systems near Plymouth, North Carolina, to evaluate the effect of subsurface drain depth on nitrate-nitrogen (NO3 --N) losses. Drains in plot 1 were 1.5 m deep and 25 m apart, and drains in plot 2 were 0.75 m deep and 12.5 m apart. Both plots received swine wastewater applications. Overall, the shallow drainage system had 42% less outflow than the deeper drainage system. Lower NO3 --N concentrations were observed in the shallow groundwater beneath the shallow drainage plots as a result of higher water tables and likely increased denitrification. However, NO3 --N concentrations in the drainage water from the shallow drains were not reduced. On average, NO3 --N export from the shallow subsurface drains was 8 kg ha-1 in 2001 and 27 kg ha-1 in 2002. Nitrate export from the deeper drains was 6 kg ha-1 in 2001 and 37 kg ha-1 in 2002. Decreased export observed in 2002 from the shallow subsurface drainage system was significant at the 10% level, but not for the entire 21-month period. Longer-term field studies, which incorporate variable climatological events, are needed to conclude whether shallower drain depth will reduce NO3 --N export from subsurface drainage systems.
STUDY AND ANALYSIS OF SIDEWINDING LOCOMOTION TECHNIQUE FOR THE DEVELOPMENT OF BIO-INSPIRED ROBOT

Sidewinding is a noble snake gait to locomot at wide and flat ground. It has broad range of advantage; it’s very effective when crossing loose or slippery ground so if we like to build a snake like mechanical system which can walk in wide variety of terrain then we have to capture sidewinding motion in our device. In this paper we study and analyze sidewinding locomotion technique to capture this gait in our device, which can locomot over loose or slippery ground. To understand this locomotion technique we have studied sidewinding serpentine gait from biological aspect as well as their equivalent mechanical system. We use simulation technique and Lissajious figure to analyze the matter. From the study it’s found, this form of locomotion can be generated by changing of phase of sinusoidal curve and this is explain in this paper through Lissajious figure and one analytical model also prepare for the development of robot.
PEARSON JOURNAL OF SOCIAL SCIENCES & HUMANITIES

Purpose: This study intends to explore the link between psychological empowerment (PE) and organizational commitment (OC) with the data obtained from tourism sector employees in Turkey. Accordingly, the goals of the study are: i) To measure the level of OC (affective, normative and continuance commitment) among employees in the tourism sector in Turkey ii) To measure the level of PE (meaning, competence, self-determination and impact) iii) To examine the relationship between PE and OC. To test the proposed relationship, three hypotheses are developed; H1: PE will have a positive impact on affective commitment. H2: PE will have a positive impact on normative commitment. H3: PE will have a positive impact on continuance commitment. Research Methods: Each variable was measured using a 5-point Likert scale ranging from “strongly disagree” (1) to “strongly agree” (5). PE was measured by 12 items developed from the study of Spreitzer (1995). OC was measured by 9 items developed from the study of Meyer & Allen (1997). The data of the study were obtained both through the questionnaire technique via Google form and face to face interviews. Of the 118 respondents 80(68%) were men, and 38 (32%) were women. The majority of the participants (45%) are ranged in age from 17 to 25 years. Of the participants, %31 have üniversity educations and %46 have been working between 3 and 5 years in the company. The majority of the participants have an income ranging from 4001-6000 ₺ (Turkish Liras) where the net minimum wage is wage for single people is 2,826 ₺ ($377) a month. Data from 118 employees have been evaulated by using of the SPSS 20.0 program Results and Discussion: The findings of the study reveal that the level of AC (mean = 3,81), NC (mean = 3,53), and CC (mean = 3,82) is moderate among tourism sector employees. Continuance commitment appears to be the highest of the three components of the OC which is not surprising as the respondents of the survey are from Turkey which has high unemployment rate (13,4 percent in February of 2021). In high unemployment work environments employees are likely to exhibit higher levels of CC because of the higher penalty of job loss. In such environments feelings of job insecurity among employees creates an incentive to embrace their current employment and thus they remain loyal and committed to their organization(Shapiro-Stiglitz, 1984). In terms of the correlations between the variables, the results reveal that all of the variables show significant positive correlations. On the other PEARSON JOURNAL OF SOCIAL SCIENCES & HUMANITIES ISSN: 2717-7386 DOI Number: http://dx.doi. org/10.46872/pj.359
Factors Influencing Ticket Repurchase Intentions: A Study at an Indonesian Online Travel Agency

In recent times the tourism industry in Indonesia has beenincreasing. The tourism industry growth because ofinfrastructure support, the development of tourist destinations, and other factors. One of the supporting facilities is related to the provision of travel tickets. Along with the growth in internet use, the increasing number of smartphone users, ticket transactions for tourism, leisure, and traveling have shifted from offline or in-store ticket agents to online sales.
Compact low swing gearbox-type integrated capacitive DC/DC converter

A gearbox-type capacitive DC/DC converter is presented with an enhanced switch- and capacitor-array. The switch overhead is reduced significantly with respect to a conventional implementation. The presented topologies exhibit a lower swing on the intermediate capacitor nodes so that power loss due to the parasitic capacitances on these nodes is reduced drastically.
How individuals process NWS weather warning messages on their cell phones

AbstractU.S. government officials are focusing their attention on how to deliver timely and effective warning information to the public, especially given the devastating weather-related events that have occurred in recent years. With the increase of cell phones (and in particular, web-capable smartphones), weather warnings sent through various cellular technologies represent one way for officials to quickly notify an increasingly mobile public. Cellular technology innovations also make it possible for officials to broadcast information-rich media like graphics to cell phones. Whether warning messages must include such “rich” media to be effective remains an open question. The current study investigates the effectiveness of National Weather Service (NWS) warning messages sent either in plain text or in text that includes a radar image of the storm. The research protocol was modeled after the interactive National Weather Service (iNWS) messaging service currently available to NWS core partners. In the study.
CROWDSOURCING FOR REQUIREMENTS GATHERING: AN OVERVIEW

Requirements gathering play a vital role in software development, for software to be usable and likeable it must cater the best to communicate the needs, ideas and wishes from millions of stakeholders, hence always rely heavily on user’s perspectives. Thus, crowd involvement is becoming significant in requirements gathering phase of software development be it for software evolution or even for development of new software products. In addition, with nowadays technology the requirement from user can be access throughout review of the software in many reliable sources which part of crowdsourcing. Thus, this paper will present a review on crowdsourcing engineering regards to the previous and recent practices; as well as discussion on potential research area in this field
An indirect boundary element method applied to simulate the seismic response of alluvial valleys for incident P, S and Rayleigh waves

A boundary integral formulation is presented and applied to model the ground motion on alluvial valleys under incident P, S and Rayleigh waves. It is based on integral representations for the diffracted and the refracted elastic waves using single-layer boundary sources. This approach is called indirect BEM in the literature as the sources' strengths should be obtained as an intermediate step. Boundary conditions lead to a system of integral equations for boundary sources. A discretization scheme based on the numerical and analytical integration of exact Green's functions for displacements and tractions is used. Various examples are given for two-dimensional problems of diffraction of elastic waves by soft elastic inclusion models of alluvial deposits in an elastic half-space. Results are displayed in both frequency and time domains. These results show the significant influence of locally generated surface waves in seismic response and suggest approximations of practical interest. For shallow alluvial valleys the response and its resonant frequencies are controlled by a coupling mechanism that involves both the simple one-dimensional shear beam model and the propagation of surface waves.
Experimental and Numerical Investigation of Stator Exit Flow Field of an Automotive Torque Converter

The objective of this investigation is to understand the nature of the complex flow field inside each element of the torque converter through a systematic experimental and numerical investigation of the flow field. A miniature five-hole probe was used to acquire the data at the exit of the stat or at several operating conditions. The flow field is found to be highly three-dimensional with substantial flow deviations, and secondary flow at the exit of the stator. The secondary flow structure, caused by the upstream radial variation of the through flow, induces flow overturning near the core. Flow separation near the shell causes flow underturning in this region. The rate of decay of stator wake is found to be slower than that observed in the wakes of axial flow turbine nozzles. The flow predictions by a Navier-Stokes code are in good agreement with the pressure and the flow field measured at the exit of the stator at the design and the off-design conditions.Copyright © 1994 by ASME
Soft fault diagnosis in analogue circuits based on the Pearson correlation

The paper deals with the diagnostic algorithm for soft faults in analogue circuits. It bases on the spectrum analysis of the circuit response to the rectangular input signal. The classifier applied in the location uses Pearson correlation coefficient. The identification is based on the formulas constructed with use of the evolutionary method: gene expression programming. The algorithm represents SBT (Simulation Before Test) technique and requires multiple analysis of circuit under test for building a fault dictionary. The numerical example shows the effectiveness of the algorithm. Streszczenie. W artykule przedstawiony zostal algorytm diagnozowania parametrycznych uszkodzen ukladow analogowych. Bazuje on na analizie FFT odpowiedzi badanego ukladu na prostokątny sygnal wejściowy oraz stosuje jako klasyfikator wspolczynnik korelacji Pearsona. Algorytm reprezentuje technike SBT i wymaga wielokrotnych analiz badanego ukladu pozwalających na zbudowanie slownika uszkodzen. Przedstawiony przyklad obliczeniowy potwierdza efektywnośc algorytmu. (Diagnostyka uszkodzen parametrycznych z wykorzystaniem korelacji Pearsona).
A Latent and Semantic Framework for Deformable Object Representation

—Soft object manipulation has recently gained popularity within the robotics community due to its potential applications in many economically important areas. Although great progress has been recently achieved in these types of tasks, most state-of-the-art methods are case-speciﬁc; They can only be used to perform a single deformation task (e.g. bending), as their shape representation algorithms typically rely on “hard-coded” features. In this paper, we present a new latent and semantic framework for soft object representation. Our new method introduces internal latent representation layers between low-level geometric feature extraction and high-level semantic shape analysis. The proposed latent framework allows to explore the semantic deformation process in the built latent space and generate deformation planning with a geodesic path-based algo-rithm for deformable objects. To validate this new framework, we report a corresponding experimental study.
Eye tracking study of reading for translation and English-Russian sight translation

This paper presents the results of an eye tracking study which compares reading for translation and English-Russian sight translation. The participants of this study included both students and professional interpreters who were asked to read and sight translate two texts from their B language (English) into their A language (Russian). The study revealed significant differences in oculomotor activity during reading and sight translating within a group of students and within a group of professionals. This can be explained by the difference in the efficiency of reading for translation, translation strategy and general translation skills.
Visual Analysis of Trajectory Data

: Large volumes of trajectory data are generated in transportation, meteorology, ecology and location based services. Effective understanding and utilization of such data require not only e(cid:31)cient automatic analysis, but also intuitive and vivid visualization. Visual analysis is the combination of analysis and visualization. In this paper, we will introduce the major methodologies and interaction techniques in trajectory visual analysis, followed by its applications. Finally, we summarize the problems and challenges in this research area.
Power electronics technology at the dawn of a new century-past achievements and future expectations

The paper examines the present power electronics technology in terms of its constituent technologies. The present trends are discussed. Packaging as a central driver is evaluated and the necessity for a paradigm shift in power electronics technology identified. Future possibilities in terms of integration and packaging of all active and passive functions into a hybrid module are discussed and concluded with an exposition of a wide ranging research program to develop future technology.
WALKING NAVIGATION SYSTEM FOR VISUALLY IMPAIRED PEOPLE BASED ON HIGH-ACCURACY POSITIONING USING QZSS AND RFID AND OBSTACLE AVOIDANCE USING HOLOLENS

It is extremely diﬃcult for visually impaired people to move around in new places. Because traditional pedestrian navigation systems such as Google Map are designed using visual information such as map displays, they are diﬃcult for visually impaired people to use. The purpose of this research is to develop a wearable system to assist a visually impaired people in navigation. We propose a positioning method combining Radio Frequency Identiﬁer (RFID) and Quasi-Zenith Satellite System (QZSS) to obtain highly accurate positioning both outdoors and indoors. Furthermore, to guide visually impaired persons, it is necessary to sense and guide the direction in which the user is facing, and to detect and avoid obstacles. Therefore, we adopted HoloLens, which can generate a 3D mapping of the environment to estimate the user’s direction and to generate a route to avoid obstacles. The system directions are based on the shortest route from the current position to the destination, while dynamically generating a route that avoids obstacles if they are detected. In this paper, the navigation system construction and approaches are described, and then the results of the demonstration experiments are reported. According to the results, positioning accuracy based on RFID and QZSS was achieved with an error of less than 1m. Furthermore, we also conﬁrmed that it is possible to generate an obstacle avoidance route using sequential spatial mapping using HoloLens.