Miracle-dz/UniFAR-FTUs huggingface dataset:
Role of Haptic Interfaces in Robot-Assisted Minimally Invasive Surgery

Robot-Assisted Minimally Invasive Surgery (RAMIS) was introduced in the mid-eighties, when a PUMA robotic arm was used in a neurosurgical biopsy, successfully. RAMIS has evolved since then and has brought a revolution in surgical procedures. In 1990 the AESOP system was introduced by Computer Motion, became the first robotic endoscopic surgical system. Ten years later in year 2000 a fullfledged master/slave Da Vinci robotic surgical system was introduced by Intuitive Surgical,consists of a master console and a slave robotic system.
Design and Evaluation of Transmitting Antennas for Solar Power Satellite Systems

This study attempts to identify, design, and evaluate transmitting antennas for Solar Power Satellite (SPS) systems. The design approach aimed at meeting the SPS operational requirements at ISM bands, namely 2.4-2.5GHz for the NASA and 5.725-5.875GHz for the JAXA models. The primary attributes of SPS antennas for transmitting Beamed High-Power Microwaves (BHPMs) are high power handling capability, efficiency, and directivity with narrow beamwidth and lower sidelobe levels. Using a planar end-fed 20×20 SWA module, the whole planar Slotted Waveguide Antenna Arrays (SWAAs) were designed for both the NASA and JAXA reference models having 1km diameter antenna aperture, peak power level over 1GW, directivity over 80dBi, Side Lobe Level (SLL) less than 20dB, and pencil beam with HPBW less than 0.01°. The proposed slotted waveguide transmitting antenna arrays fulfilled the operational requirements for both the NASA and JAXA SPS reference models. Due to the higher operating frequency, the results showed that the proposed planar SWA array performs better on the JAXA than on the NASA SPS model.
DETERMINATION OF DIVIDEND POLICY OF MANUFACTURING COMPANIES IN INDONESIA

This study examines the factors that determine (determination) dividend policy in manufacturing companies in Indonesia. In general, economic conditions in Indonesia are still in the emerging market category. As a developing country, Indonesia's capital market is relatively large and has its own characteristics which are reflected in investor behavior and government regulations in the capital market. Indonesia, in its behavior in the capital market adheres to a civil law system, meaning that investors are given the widest freedom to conduct transactions in the capital market, especially in the wrong amount owned by investors. The variables used to analyze dividend policy are profitability, free cash flows, firm size and leverage. This study only focuses on manufacturing companies that distribute dividends with an observation period from 2015-2019. The sampling method used purposive sampling and obtained 145 companies that distribute dividends. The data was processed using panel data regression analysis with analysis tools using E-Views software. From the research, it is found that the ROA and F_SIZE variables have a positive and significant effect on the DPR. FCF and Leverage variables measured by (TDTE) have a negative and significant effect on dividend policy as measured by the DPR in manufacturing companies in Indonesia.
Signal correlation including antenna coupling

Mutual coupling effects between antenna elements on signal correlation are reported. A simple expression is derived to compute the correlation coefficient from the far-field radiation patterns including the characteristics of the propagation environment and the terminating impedance. It is shown that the mutual coupling between closely spatially separated dipoles can lead to increased signal decorrelation.
Virtual histology of archaeological human deciduous prenatal enamel through synchrotron X-ray computed microtomography images

The implementation of synchrotron radiation X-ray microtomography for non-destructive visualization of the dental prenatal enamel microstructure of intact archaeological human deciduous teeth is presented and compared with the physical thin-sectioning of the same archaeological dental series. Prenatal daily enamel secretion rates, i.e. the distance between two adjacent daily enamel microstructures, have been measured with the two approaches. Results show a good agreement between physical and virtual histology.
Rural Area School Teacher’s Technology Adoption: Lessons Learned from the COVID-19 Phenomenon

The occurrence of Covid-19 has caused the existing school learning system to move to online teaching and learning methods. They are carried out to safeguard the continuity of school learning sessions, attempting to avert dropouts. This paper analyzes the relationships between organizational factors, perceived usefulness, Personal innovativeness, and peers with technology adoption among teachers in rural schools in Segamat District. A total of 117 teachers were involved in this study. The results showed that perceived usefulness, Personal innovativeness, and peers influenced technology adoption among teachers from rural schools. Keywords: Adoption, e-learning, technology eISSN: 2398-4287© 2021. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians/Africans/Arabians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v6i18. 3059
Three-dimensional muscle motion reconstruction using tagged MR images

For clinical and scientific studies, it is important to understand the internal muscle motion of the tongue during speech and the heart in its beating cycle, which are made entirely of soft tissue, mostly muscle. Magnetic resonance (MR) tagging places non-invasive and temporary markers (tags) inside the soft tissues in a pre-specified pattern, yielding images that carry information about motion in the tagging direction. These images can be processing using harmonic phase (HARP) method to compute the in-plane motion. The dissertation studies the three-dimensional (3D) muscle motion using MR tagging with a focus on tongue imaging, and addresses the technical challenges in both 2D and 3D motion estimation. In the dissertation, we developed HARP tracking refinement methods to reliably and automatically track the whole tissue from tagged MRI even when traditional HARP tracking fails. We measured 3D tongue motion during speech by reimplementing and optimizing the zHARP imaging sequence, and using a specialized MR triggering and vocal repetition method. We developed a thin plate spline based 3D tongue motion tracking method using tagged MR images by extending the 3DHARP method for cardiac motion tracking. We developed a method to reconstruct a 3D, dense, incompressible deformation field from tagged MR images based on the divergence-free vector spline with incomplete data samples, and applied it to both tongue and cardiac motion reconstruction. Finally, we performed preliminary studies of the internal tongue motion pattern and muscle mechanisms of glossectomy patient and compared them with normal speakers. Primary Reader: Dr. Jerry L. Prince Secondary Readers: Dr. Gregory D. Hager and Dr. Maureen Stone
Application of Artificial Neural Network Methodology for Predicting Seismic Retrofit Construction Costs

AbstractFollowing an extensive literature review, it was established that professional subjective judgment and regression analysis were the two main techniques utilized for predicting the seismic retrofit construction cost. The study presented in this paper aims at predicting this cost by employing a more advanced modeling technique known as the artificial neural network (ANN) methodology. Using this methodology, a series of nonparametric ANN models was developed based on significant predictors of the retrofit net construction cost (RNCC). Data on these predictors, together with the RNCC, were collected from 158 earthquake-prone public school buildings, each having a framed structure. A novel systematic framework was proposed with the aim to increase the generalization ability of ANN models. Using this framework, the values of critical components involved in the design of ANN models were defined. These components included the number of hidden layers and neurons, and learning parameters in terms of learnin.
Open resonator for precision dielectric measurements in the 100 GHz band

Dielectric properties of fused silica, MgO, AlN, and BN were measured using an open resonator at frequencies around 100 GHz. The resonator is of the semifocal type and consists of a concave and a plane mirror, and the frequency variation method is used. To increase the reliability of measurement data, the operating frequency and thickness of the samples were chosen so as to make the parameter Delta =1 for every sample. The radius of curvature of the concave mirror is deduced with sufficient accuracy from the resonant frequencies of the transverse-electric-mode TEM/sub 0.0/ and TEM/sub 1.0/ modes, which results in a precise determination of resonator length. The standard deviation of measurements was less than 0.1% in permittivity and about 10% in loss tangent. >
A compact three port power divider with tunable power ratio

This article presents a novel method for the design of tunable and miniaturized power dividers.It is based on three impedance transformers and requires a single bias voltage command, instead of three commands needed for more classical designs. This single voltage simplifies the power divider in terms of design and use. For a proof‐of‐concept, a power divider with a 950 MHz working frequency has been designed, with two output varactors tuning the power repartition through the two output ports. Thanks to the developed approach, the miniaturization ratio between our power divider and the Wilkinson one is equal to 75.5% at 950 MHz. Measurements show a wide tunable power ratio between the two output ports (1:3.4), a very good matching in the pass band (return loss better than 16 dB), low insertion loss (0.6 dB), and a tunable bandwidth of ±15%. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:357–363, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27297
Incipient turn-to-turn winding fault diagnosis of power transformers by the on-load exciting current Extended Park's Vector Approach

This paper presents the application of the on-load exciting current Extended Park's Vector Approach for diagnosing incipient turn-to-turn winding faults in operating power transformers. Experimental and simulated test results demonstrate the effectiveness of the proposed technique, which is based on the spectral analysis of the AC component of the on-load exciting current Park's Vector modulus. results, presented in (10), concerning the use of the supply current Park's Vector Approach, have also demonstrated the effectiveness of this technique for diagnosing the occurrence of inter-turn insulation faults in the windings of operating three-phase transformers. The on-line diagnosis is based on identifying the appearance of an elliptic pattern, corresponding to the transformer supply current Park's Vector representation, whose ellipticity increases with the severity of the fault and whose major axis orientation is associated to the faulty phase. However, with this approach, it is difficult to discriminate between unbalanced loads and winding faults. To overcome this difficulty, an improved diagnostic technique was then implemented (11), (12), which consists in the analysis of the on-load exciting current Park's Vector pattern, and therefore unaffected by the transformer's load conditions. Additionally, the on-load exciting current Park's Vector Approach enhances the severity of the fault, as compared to the former diagnostic technique. The on-load exciting current Park's Vector Approach takes into account the currents in all the three primary and secondary phases. Too much information is thus contained in this representation, which cannot be completely extracted by the analysis of the resulting geometrical pattern. Also, a fault severity factor cannot be easily defined.
Semiconductor Physics And Devices 3rd Edition

Electronic Circuit Analysis and DesignFundamentals of MicroelectronicsIntroduction to Semiconductor PhysicsFundamentals of Solid State EngineeringSemiconductor Device FundamentalsPhysics of Semiconductor DevicesSemiconductor Physics And DevicesInformation TheoryFundamentals of Modern VLSI DevicesSemiconductor PhysicsBasic Semiconductor PhysicsSemiconductor Devices: Physics and Technology, 3rd EditionPhysics of Semiconductor DevicesSemiconductor DevicesThe Physics of SemiconductorsQuantum Theory of the Optical and Electronic Properties of SemiconductorsINTRODUCTION TO SEMICONDUCTOR MATERIALS AND DEVICESSemiconductor PhysicsSemiconductor Physics and ApplicationsHandbook of Graph TheorySemiconductor Physics And DevicesQuantum MechanicsFundamentals of Tool Design, Fifth EditionPhysics of Semiconductor DevicesSemiconductor Material and Device CharacterizationPhysics of Semiconductor DevicesPrinciples of Semiconductor DevicesPhysics of Semiconductor DevicesFundamentals of Semiconductor DevicesSemiconductor PhysicsThe Physics of Semiconductor DevicesSemiconductor Device Physics and DesignThe Physics of SemiconductorsSemiconductor Power DevicesSemiconductor Physics and Devices (SIE)The New Global Ecosystem in Advanced ComputingHot Electrons in SemiconductorsIII–V Compound Semiconductors and DevicesFundamentals of SemiconductorsSemiconductor Device Physics and Simulation
Dockless Electric Scooters and Transit Use in an Urban/University Environment

27 Micromobility services presented an exponential growth in recent years due to the introduction of 1 shared electric dockless scooter (e-scooters) services in cities across the United States. E-scooters 2 offer an alternative for short trips and are particularly suitable for solving the first-milelast-mile 3 transit access and egress problem. However, this emerging transportation technology has brought 4 multiple challenges to urban areas, including the lack of infrastructure, deficient operating rules 5 and regulations, and safety concerns. There is a lack of research on their impact on the urban 6 environment. The main challenge remains in the availability of data. The principal objective of 7 this research is to analyze e-scooter trips and interactions with transit in an urban/university envi8 ronment. We make use of publicly available datasets to describe trip patterns in a six-month term 9 in the City of Austin. We aggregate the information by traffic analysis zones and evaluate the key 10 variables influencing e-scooters trip origins and destinations using a spatial error model (SEM) to 11 account for spatial autocorrelation. Additionally, we use a campus-wide survey to evaluate uni12 versity e-scooter usage and to explore population characteristics, mode shift, mode interaction, 13 and opinions toward new e-scooter policies and regulations implemented in the university. Princi14 pal findings suggest that there is no enough evidence of interaction between e-scooter and transit 15 trips. In the university environment, the mode interaction is not significant, and instead, there is a 16 presence of mode shift between e-scooters and transit. 17 18
AN EMPIRICAL STUDY OF POPULAR CONTENT MANAGEMENT SYSTEM - WORDPRESS VS DRUPAL VS JOOMLA

In the modern world, the absence of a business website means loss of a significant share of the tentative market. A business website helps businesses become round the clock accessible to the world. In the past, website development required a significant amount of time, computing knowledge, and skills. Content Management System (CMS) is a new website creation toolkit to address these problems. A CMS converts the complex process of website development into a simple workflow. A CMS requires no prior knowledge/experience and significantly reduces the time of developing a website. Today, many CMS platforms are available for users. This increase in the number of CMS platforms has made it difficult for a user to choose the best one. The objective of this study is to provide a comprehensive comparison of the available CMS platforms. This study performs a comparison of the three most popular CMS platforms (i.e. WordPress, Joomla, and Drupal) using a comprehensive set of criteria. For this purpose, a convenient sample of 110 students from the Computer Science Department and Management Sciences Department was used. These students had used one or more of the CMS platforms to develop websites. The results reveal that WordPress is the dominating CMS platform due to its technical capabilities and ease of use.
The effect of system-level volatility on specific and diffuse political trust in Western Democracies: A multi-level study

This paper investigates the empirically understudied argument that macro-level electoral volatility negatively affects political trust at the individual level in the electoral period after an election. Combining data from seven waves of the European Social Survey and data from a newly constructed seat share volatility index allows investigating this linkage in a multilevel design with individuals nested in 105 electoral periods from 32 European democracies. The main findings show that levels of political trust generally fluctuate throughout an electoral cycle with elections giving a boost to the levels of political trust. No main effect of seat volatility is found when comparing between electoral period levels of political trust within countries. However, there is a significant cross-level interaction with the boosting effect of the post-electoral period varying over different levels of seat volatility. The effects of the included determinant are not found to be very different when distinguishing between more specific and more diffuse types of political support as the outcome variable.
Sensing inaccessible damage in a structure using frequency response functions

The use of Frequency Response Functions (FRFs) measured at some points in the accessible area of a structure to detect damage in the inaccessible area is studied, based on the difference in the normalized FRFs from a previous observed state. Numerical simulations and experiments were carried out to investigate the effectiveness of the proposed damage index. Results showed that from the indices at the first flexural resonance mode and in the vicinity of the first resonant frequency, the damage can be accurately detected and located if there is damage in the accessible area. If the damage is in the inaccessible area, the existence of the damage can be successfully ascertained although its location may not be identified accurately. For multi-damage conditions, with damage in both the accessible and inaccessible areas, the proposed method can accurately detect and locate the damage in the measurable area and detect the damage in the inaccessible area. The magnitude of the indices provides useful information with regards to the damage severity.
TEMPORAL LONG-TERM FRAME INTERPOLATION USING U-NET DISCRIMINATOR

To improve the accuracy of frame interpolation over long time intervals in video data, we propose a frame interpolation model based on U-Net, which identiﬁes each pixel. The two discriminators associated with existing interpolation methods are each extended to a U-Net conﬁguration to discriminate videos and images for each pixel. By training the generator and discriminator based on the loss values by the U-Net, accurate image generation can be achieved. We performed comparisons on the KTH video dataset, and compared the proposed method with the conventional method. The results indicated that the quantitative scores were almost the same, however the visual evaluation revealed that the proposed method produced more accurate results.
Direct conversion radio for digital mobile phones-design issues, status, and trends

Applications of direct frequency-conversion techniques have been rapidly getting attention of radio designers worldwide. This paper focuses on bringing out key implementation challenges of direct conversion receivers and transmitters targeted for different second- and third-generation mobile phone standards like global system for mobile communication, code division multiple access (cdmaOne and CDMA 2000), and wide-band code division multiple access. Techniques and tradeoffs to arrive at optimal implementation are highlighted. Some of the commercially available application-specific integrated circuits that are based on direct conversion architecture and their salient features are summarized.
Pemantauan Pembangkit Listrik Tenaga Mikrohidro (PLTMH)

This research is motivated by electrical power shutting-down that frequently occurred in Riau province. Low electrical power supply as compared to the need causes lack of supply. Thus, new alternative electrical energy resource such as micro hydro is required. Micro hydro plant is an electrical power generators that uses water to rotate the turbine. This research designs a monitoring system for micro hydro plant. The monitored micro hydro plant employs water turbine that is constructed using bicycle pedal and a water pipe installed on the pedal . The pipe flows the water to energize the turbine. Turbine rotation will generate electricity. The amount of power resulted by generators depends on the number of turbine rotation. The power is used to turn on the lamp. Some sensors are used to monitor generator performance. Current, voltage, and rotation sensors are used to monitor the resulted current, voltage, the turbine rotation respectively. The output power is stored in the battery. The micro Arduino and the ethernet shield capture the monitored data and send it to the computers using Wi-Fi connection. Measurement results show that the output voltage produced by the generator is 10 Volts when the water volume is high. Finally, it is found that the micro hydro generator is able to supply 5 Watts to the load.
Logistic Regression Model of Risk of Fatality in Vehicle–Pedestrian Crashes on National Highways in Bangladesh

Pedestrian fatalities on national highways in Bangladesh account for about 47% of all pedestrian fatalities; therefore, it is important to identify the risk factors involved. Binary logistic models were calibrated with crash data from 1998 to 2006 maintained by the Accident Research Institute of Bangladesh to identify the factors associated with the probability of a fatal outcome. The results showed that the involvement of elderly pedestrians (individuals older than 55 years of age) and young pedestrians (individuals younger than 15 years of age) increased the likelihood of a fatality. A higher risk of fatality was also seen for pedestrians who crossed the road than for those who walked along the edges of the road. Pedestrian collisions with trucks, buses, baby taxis or tempos (auto rickshaws), and tractors had a higher risk of a fatality than collisions with cars. Crashes occurring at locations with no traffic control, stop control, and pedestrian crossings had a higher risk of a fatality than those occurring at locations with traffic signals or police control. Finally, collisions during the rainy season had a higher probability of a fatality. In addition, the influences of implicit attributes on the trend for the risk of a pedestrian injury, temporal confounding, and interaction effects were considered and were incorporated progressively into the model. A trend toward a slight increase in the risk of a pedestrian fatality was found when the model controlled for the influences of demographic factors, the road environment, and other risk factors. The identification of these risk factors for pedestrians provides valuable inputs that will assist with the development of a comprehensive pedestrian safety action plan.