Miracle-dz/UniFAR-FTUs huggingface dataset:
Experimental investigation of the aerodynamics of a wing in a slipstream

An experimental study of a wing in a propeller slipstream Iwas made to determine the distribution of the lift increase due to slipstream at different angles of attack of the wing and at different free stream-slipstream velocity ratios, the results being intended as an evaluation basis for different theoretical treatments of this problem. During this study it was found that the main departure from the potential flow expectation occurs at large angles of attack, where a de stalling effect of the slipstream on the whole wing results in significant additionallift. Measurements of center of pressure shift were made to clarify this point. In other respects potential flow representation of the phenomenon seems justified, provided slipstream rotation is taken into account when solving for the spanwise lift distribution. In terms of total lift gain, a closed form solution given by a slender body theory showed good agreement with experimental values from which destalling effects were subtracted.
Elevated Serum Lipase Levels as a Marker of Intraductal Papillary Mucinous Neoplasm of the Pancreas: A Cross-Sectional Study

Background: Intraductal papillary mucinous neoplasm (IPMN) is a well-established premalignant pancreatic lesion. It is known that mild hyperlipasemia, elevated serum lipase levels, is the risk of malignancy and poor prognosis in patients with IPMN. The purpose of this study is to reveal whether hyperlipasemia is useful in identifying patients with IPMN. Methods: The consecutive 91 patients aged 40-89 years who underwent magnetic resonance cholangio-pancreatography (MRCP) from 2016 to 2019 and who showed elevated serum lipase values above the reference range (>51 U/L) in one year were enrolled. Patients were categorized into three as having IPMN, other pancreatic cystic lesion, and non-cysts groups by MRCP. Results: IPMN was found in 22% and other pancreatic cystic lesion was found in 17% of patients. The prevalence of IPMN was higher in patients with mild hyperlipasemia (60-79 U/L) compared to those with borderline hyperlipasemia (<60 U/L) (36% vs. 17%; odds ratio, 5.2; 95% confidence interval, 1.2-22.4). Patients taking H2-blockers or weight loss >1kg/year also showed higher risk of IPMN (39% vs. 15% and 32% vs. 19%, respectively), and patients with both mild hyperlipasemia and taking H2-blockers showed the highest risk of IPMN compared to those with neither of them (75% vs. 13%). Conclusions: Patients with mild hyperlipasemia showed five times higher risk of having IPMN compared to those with borderline hyperlipasemia. Further investigation with MRCP should be considered for patients with mild hyperlipasemia, especially when they had episodes of epigastric discomfort or weight loss, to find high risk patients for future pancreatic carcinoma.
Farklı Dönemlerde alınan Kara Dut (Morus nigra L) Çelik Tiplerinde Köklenme Başarısının Belirlenmesi

In this study, rooting performances of the hardwood, semi hardwood and soft wood cuttings of black mulberry (Morus nigra L) were investigated. In addition to control group, hardwood and semi hardwood cuttings were treated with 6000 and 7500 ppm IBA. Soft wood cuttings were dipped to 4000 and 6000 ppm indole butyric acid (IBA) solutions. While the rooting ratio remained at 9.5%, it was 24% in hardwood cuttings treated with 6000 ppm. On the other hand, no root formation was observed in the hardwood cuttings treated with 7500 ppm IBA. Higher rooting ratios were observed in semi hardwood and soft wood cuttings than hardwood cuttings. The rooting ratios in semi hardwood were 13.33% in control, 60% in 6000 ppm treatment and 76.67% in 7500 ppm IBA treatment. The rates of root formation in soft wood cutting were 25% in control, 55.9% in 6000 ppm IBA treatment and 68.5% 7500 IBA treatment. The number of roots per cutting was low in hardwood cutting both with and without hormone. While the average number of roots per cutting of semi hardwood cuttings was 1.00 in control, it was increased by 7500 IBA treatment to 5.07. In the soft wood cutting, average 4.38 roots per cutting were formed in control group. The number of root per cutting in 6000 and 7500 ppm IBA treatments was 10.33 and 11.34, respectively.
Review of the Studies Using Kinect in Learning Environments of Individuals with Special Needs

As a result of rapid changes and developments in technology that recently started to be used in the field of education, the use of "Kinect" which is one of the latest innovations is increasing in learning environments. The most important feature of Kinect is that sensors detect the body movements and simultaneously project these movements on the screen as commands and consequently provide device and user interaction. This system which detects body movements in three dimensions and operates in a contactless manner has various application areas in the educational environments. Studies indicate that this new technology addressing the hearing, visual and motor skills at the same time have been used in education of individuals with special needs. The purpose of this study is to descriptively examine studies that focus on the use of the Kinect in education and rehabilitation of individuals with special needs. The findings of this study were discussed in accordance with the relevant literature and new suggestions for the use of Kinect with individuals with special needs are highlighted for the researchers and practitioners. Key Words: Kinect, Individuals with Special Needs, Educational Technologies
Drivers' Perception of Loss of Adherence in Bends: Influence of Motion Rendering

This paper investigated drivers’ perception during situations of loss of adherence (LOA) in static and dynamic driving simulators. The intensity and duration of the LOA were manipulated. Results show that drivers were able to correctly discriminate the different conditions of LOA in both simulators. They also highlight the importance of nonvisual information, with steering wheel haptic cues predominating for the static simulator and both the steering wheel and motion platform predominating for the dynamic simulator. This study is a first step in developing an evaluation method for electronic stability control (ESC) handling in high-performance simulator experiments. [DOI: 10.1115/1.3622752]
Noise in Large-Signal, Time-Varying RF CMOS Circuits: Theory & Design

Author(s): Murphy, David Patrick | Advisor(s): Abidi, Asad A; Chang, Mau-Chung Frank | Abstract: RF CMOS design is now a mature field and CMOS radio transceivers have become standard in most consumer wireless devices. Like any wireless RF design, at the heart of the endeavor is the requirement to frequency translate signals between baseband and RF with minimal introduction of noise and distortion. This translation is generally accomplished using time-varying, strongly nonlinear circuits, whose operation and noise performance cannot be understood using standard LTI circuit analysis techniques. This work seeks to address some of the design and analysis challenges posed by a variety of these non-linear, time-varying CMOS RF circuits, specifically in the context of low noise design.First, a new wideband receiver architecture is proposed and analyzed. Using two separate passive-mixer-based down-conversion paths, noise cancelling is enabled, but voltage gain is avoided at unwanted blocker frequencies. This approach significantly relaxes the trade-off between noise, out-of-band linearity and wideband operation.Second, using a phasor-based analysis method, new theoretical results relating to noise mechanisms in LC oscillators are described. Amplitude noise and Q-degradation is quantified for the first time, while the analysis method is also used to re-derive a fundamental limit to the achievable phase noise of any LC oscillator.Finally, a low-noise, wideband PLL is described that is suitable for emerging mm-wave standards. This design demonstrates that CMOS technology is capable of delivering a high-performance wideband VCO, even at mm-wave frequencies.
Torque analysis of permanent magnet synchronous motors

The torque capability of permanent magnet synchronous motor (PMSM) drives above rated speed is analyzed based on a proposed representation of the vector diagram. Mathematical equations and methods for graphical presentation of the torque capability are shown and applied to select motor parameters in a traction application. A commercially available salient pole PMSM is analyzed. <<ETX>>
Application of Statistical Analysis to DC-DC Converters

This paper aims at showing the benefits of a statistical analysis applied to DC-DC converters. A boost converter under current-mode control operating chaotically was being used as an example. Theoretical results are verified by measurements. Parallels to results other researchers are drawn. New simple expressions for the DC value of the boost's input current and the AC power are proposed. The statistical approach covers the periodic and aperiodic behavior quite naturally. It reveals that almost all AC power is contained in the chaotic part of the input current. Impacts on meeting electromagnetic interference regulations are suggested.
A Brief Review of Filtration Studies for Waste Treatment at the Hanford Site

This document completes the requirements of Milestone 1-2, PNNL Draft Literature Review, discussed in the scope of work outlined in the EM-31 Support Project task plan WP-2.3. 6-2010-1. The focus of task WP 2.3. 6 is to improve the U.S. Department of Energy’s (DOE’s) understanding of filtration operations for high-level waste (HLW) to enhance filtration and cleaning efficiencies, thereby increasing process throughput and reducing the sodium demand (through acid neutralization). Developing the processes for fulfilling the cleaning/backpulsing requirements will result in more efficient operations for both the Hanford Tank Waste Treatment and Immobilization Plant (WTP) and the Savannah River Site (SRS), thereby increasing throughput by limiting cleaning cycles. The purpose of this document is to summarize Pacific Northwest National Laboratory’s (PNNL’s) literature review of historical filtration testing at the laboratory and of testing found in peer-reviewed journals. Eventually, the contents of this document will be merged with a literature review by SRS to produce a summary report for DOE of the results of previous filtration testing at the laboratories and the types of testing that still need to be completed to address the questions about improved filtration performance at WTP and SRS. To this end, this report presents 1) a review of the current state of crossflow filtration knowledge available in the peer-reviewed literature, 2) a detailed review of PNNL-related filtration studies specific to the Hanford site, and 3) an overview of current waste filtration models developed by PNNL and suggested avenues for future model development.
Superconducting linear actuators for highly dynamic motion

This paper presents a numerical modeling method for AC losses in highly dynamic linear actuators with high temperature superconducting (HTS) tapes. In these actuators, the main loss component in the superconducting tapes are hysteresis losses, which result from both the non-sinusoidal phase currents and movement of the permanent magnets. The modeling method, based on the H-formulation of the magnetic fields, takes into account permanent magnetization and movement of permanent magnets. Calculated losses as function of the peak phase current are compared to those of an equivalent non-cryogenic actuator.
Handling transient response of a vehicle with a planar suspension system

A novel design of a planar suspension system (PSS) is proposed to overcome the limitation of a conventional vehicle suspension system that cannot sufficiently absorb the vibrations and shocks caused by the road obstacles in the longitudinal direction because of the very stiff longitudinal connections between the chassis and the wheels. The rather stiff longitudinal linkages are replaced by a spring–damper strut. The results of the investigation into the transient handling behaviour of a vehicle with a PSS in three different scenarios are presented. These include a vehicle turning on a bumpy road, a vehicle turning combined with braking, and a lane change manoeuvre combined with acceleration. The results obtained from this study demonstrate that the PSS vehicle can effectively suppress the vibrations and shocks in the longitudinal direction without causing the handling performance to deteriorate. It has been shown that the vehicle-handling behaviour is generally comparable with, and under some conditions even better than, those reported for vehicles with a conventional suspension system.
Fundamentals of a new family of auxiliary resonant snubber inverters

Several auxiliary commutated soft-switching inverters proposed in the past can be grouped into a new family of auxiliary commutated RSIs (resonant snubber inverters). The purpose of this paper is to explore the fundamentals for the whole family of the auxiliary commutated RSIs. With topological study and experimental data, the paper describes (1) basic principle of auxiliary resonant circuit operation that affects the device switching and (2) features of different auxiliary resonant commutation techniques. The paper also proposes (1) resonant circuit design criteria based on dv/dt and di/dt limits and (2) variable timing control adaptive to load current to improve the inverter efficiency. Experimental results are provided to verify the concept of zero crossing control, dv/dt and turn-off energy reduction, and efficiency improvement with the variable timing control technique.
AntiConcealer: Reliable Detection of Adversary Concealed Behaviors in EdgeAI-Assisted IoT

Internet of Things (IoT) is one of the rapidly developing technologies today that attract huge real-world applications. However, the reality is that IoT is easily vulnerable to numerous types of cyberattacks and anomalies. Detecting them is becoming increasingly challenging day by day due to limitations with IoT devices and threat intelligence. Particularly, one of the most challenging problems is to detect the existence of malicious adversaries that continuously adapt or conceal their behaviors in IoT to hide their actions and to make the IoT security protocol ineffective. In this article, we study this problem at the IoT device level that can be a great idea to avoid potential attacks. We present AntiConcealer, an edge-aided IoT framework, and propose an edge artificial intelligence-enabled approach (EdgeAI) for detecting adversary concealed behaviors in the IoT. We first develop an adversary behavior model and use this to identify mid-attack temporal patterns by learning the multivariate Hawkes process (MHP), a kind of point process as a random and finite series of events (e.g., behaviors) controlled by a probabilistic model. Naturally, learning MHP processed on EdgeAI reveals the influence of the concealed behaviors of adversaries in the IoT. These concealed behaviors are then grouped using a nonnegative weighted influence matrix. To observe the performance of the AntiConcealer framework through evaluation, we employ honeypots integrated with edge servers and verify the usability and reliability of adversary behavioral identification.
Relation between breakdown mode and breakdown location in short channel NMOSFETs and its impact on reliability specifications

A method to determine the breakdown position in short channel nMOSFETs is introduced. We find that soft breakdown occurs exclusively in the transistor channel while the hardest circuit killing breakdowns occur above the source and drain extension regions. Since these breakdowns make up only a small fraction of all breakdowns, a relaxation of the reliability specification is possible.
Governança corporativa e sensibilidade investimento-fluxo de caixa no
 Brasil

This study aimed to investigate the investment-cash flow sensitivity for Brazilian companies with different degrees of financial constraint according to the quality level of their corporate governance practices. An investment model was estimated through GMM for a panel data of 248 Brazilian publicly traded companies, which were a priori classified in two groups of financial constraint degrees (high and low) according to the Corporate Governance Practices Index (IPGC). The results showed that the quality of corporate governance influences the investment-cash flow sensitivity, and this sensitivity is negative and significant only for firms with poor governance, classified with high financial constraint. Furthermore, it can be concluded that IPGC proved to be an interesting variable for a priori classification of companies and an important determinant of the investment-cash flow sensitivity to identify potentially financially constrained firms.
PHYSICAL MAPPING AND INHERITANCE STUDIES OF CRY1AC GENE ON TRANSGENIC COTTON CHROMOSOMES

The presence of Bt gene, cry1Ac in transgenic lines of Gossypium hirsutum L. was determined by molecular and cytogenetic analysis. Fluorescence in situ hybridization (FISH) was carried out to study the location of transgene on chromosomes. Metaphase chromosomes prepared from root tips and pollen grains showed more condensation, and hence more karyotypically differentiated. The five transgenic lines of cotton showed stable integration of transgene, cry1Ac. Either the lines were heterozygous (CEMB-3010-14, CEMB-3013-10, CEMB-3016-13 and CEMB-3037-2) or homozygous (CEMB-3034-10) showing single and double genes respectively at interphase and metaphase FISH while the control lines showed no fluorescent signal for transgene at all. Metaphase chromosomes prepared from pollens were also analyzed and single copy of cry1Ac was mapped on chromosome 10 which showed the stable inheritance of transgene in the progeny. The information obtained during study may be helpful to understand the possible effects of copy number variation and position effect of transgene in Bt cotton. The study may also help to comprehend the process of transgene inheritance in Bt cotton lines.
A low power CMOS adaptive line equalizer for fast Ethernet

An analog adaptive line equalizer has been developed for 155 Mbps fast Ethernet data communication up to 100 m UTP (unshielded twisted pair) cable. The proposed adaptive equalizer is designed for the 0.35 /spl mu/m CMOS process. The designed equalizer has low power consumption (19 mW) and small silicon area (0.07 mm/sup 2/).
Pengurusan Wakaf Pendidikan di Institusi Pengajian Tinggi Malaysia: Satu Sorotan Literatur

Wakaf pendidikan sudah lama diamalkan di Malaysia melalui kewujudan institusi pendidikan berbentuk tradisi seperti pondok, madrasah, sekolah agama rakyat dan sekolah agama negeri.Pada tahun 1999, Universiti Islam Antarabangsa Malaysia (UIAM) telah mewujudkan Islamic Endowment Fund (IEF), menjadikannya sebagai institusi pengajian tinggi (IPT) pertama di Malaysia yang menubuhkan tabung wakaf pendidikan yang diikuti dengan beberapa buah IPT lain dari setahun ke setahun.Artikel ini membincangkan satu perkembangan penulisan, sama ada dalam bentuk penyelidikan, buku, artikel dan sebagainya dalam membahaskan isu pengurusan wakaf pendidikan di institusi pengajian tinggi di Malaysia.Kajian ini dilakukan dengan menggunakan metode kualitatif dengan mengambil pendekatan kajian kepustakaan.Hasil sorotan kajian yang dilakukan boleh dikatakan bahawa telah banyak penulisan, lontaran idea dan perbincangan berkenaan perkara ini dibuat oleh para sarjana, ahli akademik dan juga pihak kerajaan.Wakaf pendidikan di Malaysia dilihat semakin berkembang dengan penubuhan tabung wakaf pendidikan di beberapa buah IPT seperti UIAM, Universiti Putra Malaysia (UPM), Universiti Kebangsaan Malaysia (UKM), Universiti Sains Islam Malaysia (USIM), Universiti Teknologi Malaysia (UTM) dan beberapa buah IPT lain lagi.Walau bagaimanapun, sehingga artikel ini dibuat, masih belum ada kajian yang meneliti secara khusus pengurusan wakaf pendidikan di IPT sedia ada selain daripada masalah dan cabaran yang dihadapi, terutamanya melibatkan aspek pengurusan dana yang menjadi tulang belakang kepada kejayaan sesuatu wakaf pendidikan.
Effects of ‘Covidfencing’ on cross-border commuting: a case of Czech-German borderland

ABSTRACT Cross-border commuters were faced with several problems during the Covid-19 pandemic. Borders were closed, strict checks were introduced thereon and their commuting and often working realities changed. This study focuses on how closed borders and border restrictions affected cross-border workers and their day-to-day work during the Covid-19 pandemic, how their trust in governments and regional municipalities in Czechia and Germany has changed as a result of covidfencing, and how measures during the Covid-19 pandemic changed commuters’ attitudes towards the EU, freedoms and the European single market. Theoretically, the study is rooted in the concept of cross-border integration and the research itself was conducted this spring in the form of semi-structured interviews among cross-border commuters. Research shows a criticism expressed by cross-border commuters towards the attitude of the Czech government and regional municipalities. The commuters argue that they merely use open borders and the opportunity to work within the EU, but that the Czech government and regions have disproportionately prevented them from doing so while turning public sentiment against them. According to them, it is disappointing that Czechia in particular has ignored the fact that they have valid employment contracts within the EU and are obliged to abide by them.
Ocean Wave Energy Harvesting Devices

Abstract : Development of a mechanically sound buoy design. which generated 10W average power in Beaufort Sea State I. and showed potential for up to 20W in Sea State 4. Development of a wave energy harvesting buoy capable of generating 2W in Sea State I. and with proper mechanical alignment able to generate over 4W. Development of two modeling capabilities: a classical mechanical model used lbr optimizing the electromagnetic design,. and a hydrodynamic model to predict device performance given a set of buoy/generator design characteristics and environmental conditions. The latter model allows input of actual wave spectra. winds and currents. It also has the capability to simulate mooring designs and their impact on power production. A literature search to determine available wave energy in the 1-3 second wave period band was sufficient to meet the 20W power requirements in Sea State 1. The result of this study indicated a device with conversion efficiency on order of 10% could generate 20W on average from waves with conversion efficiency on order of 10% could generate 20W on average from waves with periods faster than 3 seconds.
Harmonic Response of Three-phase Magneto-electro-elastic Beam Under Mechanical, Electrical and Magnetic Environment

Magneto-electro-elastic (MEE) materials show a significant coupling between the mechanical, electrical, and magnetic fields. A three-phase MEE composite consisting of piezoelectric and piezomagnetic phases separated by a polymer matrix would have greater ductility and formability. In this article, harmonic response of three-phase MEE beam under mechanical, electrical, and magnetic load is presented using finite element method. Numerical studies are presented for different volume fraction (vf) of the magnetic phase in the three-phase MEE composite. Studies are done for clamped—free boundary condition of the beam. Ansys 8.1 is used to validate the code developed. The influence of various coupling term is also studied. The effect of coupling terms influencing the load vector plays a major role in the generation electric and magnetic potential when subjected to magnetic and electric conditions.