Miracle-dz/UniFAR-FTUs huggingface dataset:
Defect circumferential sizing by using long range ultrasonic guided wave focusing techniques in pipe

Ultrasonic guided waves have the advantage of propagating over very long distances due to their natural ability of following differently shaped wave guides. This advantage makes guided waves a good candidate for long range non-destructive evaluation (NDE). The recently developed guided wave focusing techniques in pipes employ a circumferentially distributed phased array. By applying different amplitude and time-delay inputs to the phased array, guided wave energy can be successfully focused at any predetermined locations in pipes. Guided wave focusing techniques improve penetration power and circumferential resolution. As a result, excellent defect detection and accurate axial and circumferential location have been achieved. In addition, defect circumferential sizing in pipes is realized by doing circumferential scans at defect distances. A circumferential scan is accomplished by focusing at 44 angles around the circumference of a pipe at a specific axial distance. In a circumferential scan, the maximum amplitude of the defect echo was recorded and then plotted with respect to each focal angle. This produces an experimental angular profile of the reflected wave. The theoretical angular profiles of the reflected wave is obtained by calculating the focused guided wave energy impinged onto defects with different cross sectional areas (CSA). By comparing the theoretical and experimental profiles, the circumferential extent of the defect can be effectively measured.
Assessment of the effects of metformin and glibenclamide on the concentration of selected trace elements in type 2 diabetic patients

Metformin and glibenclamide may have beneficial effects on the levels of trace elements in diabetic patients. The aim of the current study was to assess the effects of metformin and glibenclamide on the concentrations of copper (Cu), zinc (Zn) and magnesium (Mg) in patients with type 2 diabetes mellitus. The metformin-treated patients showed significantly lower serum Cu levels compared with the untreated and glibenclamide groups. In addition, treatment with metformin was associated with a significant increase in serum concentrations of Zn compared to the newly diagnosed patients, whereas it did not show a noticeable alteration in the serum level of Mg. In contrast, the glibenclamide treated group revealed significantly higher Zn and Mg levels compared with the newly diagnosed group, while the serum level of Cu was not significantly modified. In conclusion, treatment with metformin led to a reduction in serum Cu and an increase in serum Zn concentrations, whereas glibenclamide treatment displayed enhancement in serum Zn and Mg levels.
Study on application of flux linkage of synchronous generator for loss of excitation detection

SUMMARY This contribution deals with the analysis of synchronous generator loss of excitation (LOE) protection. This paper presents a new method for detecting LOE in synchronous generator based on the variation of the magnetic flux linkage in the air gap. To show the effectiveness of the proposed protection, comparisons are made with the conventional LOE protection methods by considering different generator sizes. The simulation results show that the proposed method is useful and effective to detect LOE conditions. The main advantage of this method is its speed and sensitivity. Copyright © 2012 John Wiley & Sons, Ltd.
System Monotonicity and Subspace Tracking: A Geometric Perspective of the Frisch–Shapiro Scheme

The Shapiro scheme, together with the closely related Frisch–Kalman scheme, has been an important approach to system identification and statistical analysis. A longstanding result on this scheme, known as the Shapiro theorem, is both informative and significant. This article imparts a geometric understanding to the Shapiro theorem and generalizes it to the asymmetric setting using the notion of cone-invariance. In particular, we establish the equivalence between two important properties of a real-valued square matrix—irreducible orthant-invariance and simplicity of its dominant eigenvalue under arbitrary diagonal perturbations. The result can be regarded as a converse Perron–Frobenius theorem. Furthermore, we investigate two applications of the proposed result in systems and control, namely, characterization of irreducibly orthant-monotone nonlinear systems and subspace tracking via decentralized control. We also extend the established result to accommodating polyhedral cones and obtain several insights.
Simultaneous Wireless Power Transfer and Data Telemetry Using Dual-Band Smart Contact Lens

An efficient noninvasive system for simultaneous transmission of wireless power and data is vital for continuous human health monitoring. In this article, we present a self-tuned spiral-shaped antenna with dual-band characteristics operating at 920 MHz and 2.4 GHz for efficient wireless power transfer (WPT) and data telemetry, respectively. To avoid vision blockage, the proposed smart contact lens (SCL) dipole antenna comprises two symmetrical spiral arms with inner and outer diameters of 10 and 14 mm, respectively. The SCL antenna was printed on a thin flexible polyimide substrate with a biocompatible polydimethylsiloxane (PDMS) coating. The influence of dispersed dielectric properties of PDMS on SCL antenna performance was investigated. Furthermore, the antenna was combined with a miniaturized rectifier and a micro-LED to demonstrate wireless LED illumination on a saline-filled model head. The power transfer efficiency (PTE) as a function of eye movement in the form of a path gain was also investigated. In addition, the PTE across the distance variations from 10 to 30 mm was computed, and a −17.85 dB was achieved at a separation of 12 mm. A specific absorption rate analysis was performed to determine human eye safety under radio frequency exposure from the external transmitter and the results complied with the International Commission on Non-Ionizing Radiation Protection guidelines. Furthermore, a theoretical link power budget analysis was experimentally validated using software-defined radio. Measurements of s-parameters were noted through the use of a saline solution to mimic a realistic human eye and were found to have a reasonable correlation with the simulated results.
Kayaklı- Koşucularda Dayanıklılık Egzersizlerinin Normoksi ve Hipoksi Koşullarında Maksimum Oksijen Tüketimi (MaxVO2) ve Bazı Solunum Parametreleri Üzerine Etkisi

Objective: Examination of the effect of endurance training in normoxia and hypoxia on maximal oxygen consumption (VO2 max) and some ventilator parameters in cross-country skiers. Materials and Methods: The study includes total 18subjects, 10 males and 8 females, who took part in the races at elite level, and practiced exercises for developing aerobic endurance on 6days a week. Totally 3 measurements were done during study, the first one of which was in Ankara (856 m), the second on the Mount Erciyes at the first day of acclimatization (2220 m, 4-6oC) and the last one was again on Erciyes at the 7th day of acclimatization. All the tests were done at the same time of the day, 3hours after the lunch. Results: The conclusion statistical analysis; in the comparison three tests of females, significant differences were found among the first and the second VO2max scores at the level of p
Modelos de regressão lineares para estimativa de produtividade da soja no oeste do Paraná, utilizando dados espectrais

O trabalho teve o objetivo de avaliar modelos lineares de regressao entre resposta espectral e produtividade em soja, na escala regional. Para isso, foram monitorados 36 municipios do oeste do Parana, utilizando cinco imagens do satelite Landsat 5/TM da safra de 2004/2005. Foram realizados os procedimentos de transformacao radiometrica e correcao atmosferica nas imagens, determinando valores fisicos das refletâncias aparente e de superficie. Posteriormente, foram calculados os indices de vegetacao NDVI e GVI, os quais, por meio de regressoes lineares simples e multiplas, compararam-se com as produtividades oficiais dos municipios, obtidas das estatisticas IBGE. Aplicou-se tambem uma analise de diagnostico, para detectar pontos influentes e de colinearidade. Os resultados mostraram que a media dos valores de NDVI e GVI de todas as imagens foi mais bem relacionada com a produtividade do que para cada data separadamente. O uso de regressoes multiplas com os dois indices, em todas as datas, propiciou melhores resultados de relacao com a produtividade.
Managing Security with Snort and IDS Tools

This practical guide to managing network security covers reliable methods for detecting network intruders, from using simple packet sniffers to more sophisticated IDS (Intrusion Detection Systems) applications and the GUI interfaces for managing them. A comprehensive resource for monitoring illegal entry attempts, Managing Security with Snort and IDS Tools provides step-by-step instructions on getting up and running with Snort 2.1, and how to shut down and secure workstations, servers, firewalls, routers, sensors and other network devices.
Requirements Elicitation for an Assistance System for Complexity Management in Product Development of SMEs during COVID-19: A Case Study

Technological progress, upcoming cyber-physical systems, and limited resources confront small and medium-sized enterprises (SMEs) with the challenge of complexity management in product development projects spanning over the entire product lifecycle. SMEs require a solution for documenting and analyzing the functional relationships between multiple domains such as products, software, and processes. The German research project FuPEP “Funktionsorientiertes Komplexitätsmanagement in allen Phasen der Produktentstehung” aims to address this issue by developing an assistance system that supports product developers by visualizing functional relationships. This paper presents the methodology and results of the assistance system’s requirements elicitation with two SMEs. Conducting the elicitation during a global pandemic, we discuss its application using specific techniques in light of COVID-19. We model problems and their effects regarding complexity management in product development in a system dynamics model. The most important requirements and use cases elicited are presented, and the requirements elicitation methodology and results are discussed. Additionally, we present a multilayer software architecture design of the assistance system. Our case study suggests a relationship between fear of a missing project focus among project participants and the restriction of requirements elicitation techniques to those possible via web conferencing tools.
Corporate Social Responsibility and Firm Life Cycle: Empirical Evidence from the Pharmaceutical Industry in China

The study examines the relationship between corporate social responsibility (CSR) and the corporate life cycle (CLC) of the Chinese pharmaceutical listed companies for the duration of 2010 to 2018. The firm cash flow pattern is used as a proxy for the CLC. The study results indicate that the relationship between CSR and CLC is positive and linear in all the phases of the CLC including, the introduction, growth and maturity stage. Although the relationship is smaller and more significant at the maturity phase. The research further shows that investors incorporating social responsibilities values play a key role in the firm cash flow performance (CFP) across all the firm stages. Whilst, employees espousing social responsibility tenets can only improve CFP in the decline or shakeout stages. Likewise, embedding CSR into the customers group only improves CFP at the maturity stage. Applying the lag effects lead to the same study results. The finding for the bi-directional causality indicates that although CSR can positively influence CFP, CFP is ultimately more associated with the firm unobservable characteristics rather than performance attributed to CSR. On the whole, our study results point to positive causality between CSR and CFP across all the firm life stages and the CSR has a mediating effect on each life cycle.
The Effect of Hydro-alcoholic Extract of Celery (Apium graveolens) Leaves on Serum Level of Testosterone, FSH and LH in Male Rats

کچ ي هد مز ي فده و هن : گ ي فرک ها رتچ هداوناخ هب قلعتم س ي اراد نا ي اذغ فراصم يي وراد و يي م ناوارف ي دشاب . کرت روضح ي ف تاب ي نژورتساوت ي ا رد ـ ي گ ن ـي ها تسا هدش شرازگ . ا ي کرت ن ي م تاب ي ه روحم رب دنناوت ي فوپ ي ز دانگ ثات ي دنراذگب ر . هعلاطم فده ي ـسررب رـضاح ي هراصـع رـثا ي ه ـ ي لکلاورد ي گرـب مرس تظلغ رب سفرک ي نومروه اه ي ،نورتسوتست LH و FSH شوم رد اه ي ارحص يي دوب رن . سررب شور ي : ا رد ي هعلاطم ن ي امزآ ي هاگش ي ۳۲ شوم رس ارحص يي و داژن رن ي هورگ راهچ هب راتس ۸ ات يي سقت ي دندش م . ه لرتنک هورگ ي وراد چ يـي رد ي درکن تفا . هورگ و رطقم بآ دهاش هورگ اه ي برجت ي اهزود ي ۲۰۰ و ۳۰۰ م ي ل ي ک رب مرگ ي ول هراصع ندب نزو مرگ ي ه ي لکلاورد ي سفرـک گرـب تدم هب ۲۰ لاوتم زور ي ناهد تروص هب ي رد ي دندرک تفا . هرود مامتا زا سپ ي ت ي شوم رام ب اه ي هدش شوه ، گ نوخ ـي ر ي و تـفرگ ماـجنا بـلق زا مرس حطس ي نومروه اه ي ،نورتسوتست LH و FSH زنآ شور زا هدافتسا اب ي م ي دنتفرگ رارق شجنس دروم . هداد ـه راـمآ نوـمزآ زا هدافتـسا اـب ا ي
Open Educational Practices and Resources : OLCOS Roadmap 2012

The Open e-Learning Content Observatory Services (OLCOS) road mapping work was conducted to provide decision makers with an overview of current and likely future developments in Open Educational Resources (OER) and recommendations on how various challenges in OER could be addressed. The report covers the following areas: * Policies, institutional frameworks and business models; * Open Access and open content repositories; * Laboratories of open educational practices and resources. For each of these areas, drivers/enablers and inhibitors of OER and open educational practices are identified and described in detail. The results are summarised in Roadmap Briefs, which may be used as starting points for discussing initiatives in OER and open educational practices on a strategic level. Based on the road mapping results the report also provides a set of recommendations for the following decision makers and stakeholders: * Educational policy makers and funding bodies; * Boards, directors and supervisors of educational institutions; * Teachers; * Students; * Educational repositories; * Developers and implementers of e-learning tools and environments.
Cyber security risk analysis and evaluation for intelligent vehicle gateway

With the rapid development of intelligent vehicle industry, the application of network technology and communication technology has gradually spread to all levels of vehicles. While bringing innovative functions and experience, it also infuses a new security risk - cyber security risk. This paper analyzes and evaluates the cyber security threat and risk for vehicle gateway which is a key component of automotive, and puts forward a method of risk grading, analyzes the security state of gateway, and evaluates the security risk level of gateway based on the common characteristics. Using this method, the integrity and rationality of risk analysis of intelligent networked vehicles can be effectively improved. Combined with quantitative data analysis, the risk status can be expressed and the risk level of the analysis object can be effectively displayed.
Actively conformable aerodynamic surfaces

An integrally twisting wing was developed as means of implementing roll control in a WASP class UAV. The study began by investigating various control options including the use of conventional control surfaces as well as a slotted spoiler concept. The actuation of the wing was accomplished by embedding anisotropic strain actuators within the composite construction. These offer several distinct advantages over the conventional actuators including savings in weight, mechanical complexity, g-hardening, as well as control authority. Active Fiber Composites were oriented at i45' in order to twist the wing along its span. A finite element model of the wing was constructed and validated in NASTRAN in order to model the effects of the AFC as well as to maximize the tip twist angle. Aeroelastic, inertial, and aerodynamic models were implemented within this framework in order to optimize the composite layup of the wing while still meeting the given launch and aerostability requirements. Once an optimal design was obtained, a prototype wing was manufactured with six AFC actuators embedded within the composite surface. A flexible circuit was also designed and fabricated in order to provide a low profile solution for powering the actuators. Electromechanical bench tests were carried out and the performance of the wing was characterized. The frequency response of the wing and the voltage twist transfer functions were obtained and compared with the finite element model. The results showed good correlation with the expected twist values falling within 7% of the finite element model. Only one actuator survived the maximum expected operating voltage. The remaining actuators failed during the experiment resulting in lower than expected actuation values. Initial indications show that the circuit as well as the connections are the probable source of failure in four out of the five actuator failures. The remaining failure appears to be a result of failure within the actuator itself. Thesis Supervisor: Carlos E. S. Cesnik Title: Visiting Associate Professor of Aeronautics and Astronautics
A Low-Cost 3D Local Mapping and Localization Method

In this paper we presents a 3D local mapping and localization method with kinect camera. The kinect camera is a low-cost sensor which can provide the information of the RGB image and depth image. The inverse depth parameterization model is introduced to the extended Kalman filter (EKF) to study the location Relations between the camera and feature points. A two-step feature matching method is applied to provide information to SLAM algorithm and synthetize the three-dimensional cloud points. The results of experiments validate the effectiveness of of the proposed local mapping and localization method.
TRIM22 Activates MAPK Signaling by Regulating the Transcription of SPHK2 and Accelerating the Degradation of Raf-1 in Glioblastoma

Background Tripartite motif (TRIM) 22 and mitogen-activated protein kinase (MAPK) signaling pathways play a critical role in tumor growth and therapeutic resistance of glioblastoma (GBM) respectively. However, the molecular mechanism between TRIM22 and MAPK signaling remains to be clarified. Methods We constructed TRIM22 knockout cell lines for molecular biology experiments, detected potential DNA fragments binding to TRIM22 by ChIP-Seq technology, and verified the sequencing results by ChIP-qPCR and CUT&Tag technology. In addition, we constructed different TRIM22 mutants to detect the binding of proteins in MAPK signaling pathway. Finally, the therapeutic effect was verified in NOD/SCID mice. The difference between the two groups of data conforming to the normal distribution was tested by Student t-test. Results Here, we found for the first time that TRIM22 acts as a transcription factor in the nucleus and binds to exon 2 of the transcript (NM_001204160) of SPHK2 gene to regulate its expression by ChIP-Seq technology, thus indirectly affecting the downstream MAPK signaling pathway. Knockout of TRIM22 using Cas9-sgRNAs resulted in decreased mRNA level of SPHK2 in GBM cells, while overexpression of TRIM22 enhanced it. The ERK1/2 driven luciferase reporter construct identified TRIM22 as a potential activator of MAPK signaling. Knockout and overexpression of TRIM22 regulate the inhibition and activation of MAPK signaling through its RING-finger domain. Co-immunoprecipitation demonstrated that TRIM22 bound to the negative regulator Raf-1 of MAPK signaling and accelerated its degradation by inducing K48-linked ubiquitination. The combination of the two is related to the CC domain and SPRY domain of TRIM22 and the C1D domain of Raf-1. TRIM22 also forms a complex with the downstream regulator ERK1/2 of MAPK and promotes K63-linked ubiquitination, resulting in the phosphorylation of ERK1/2. In addition, in vitro and in situ xenotransplantation models, SPHK2 inhibitor (K145), ERK1/2 inhibitor (Selumetinib) and non-phosphorylated mutant Raf-1S338A inhibited the growth promoting properties of TRIM22 in GBM cell line. Conclusions In conclusion, our study shows that TRIM22 regulates SPHK2 transcription as a transcription factor, indirectly affects MAPK signaling, and activates MAPK signaling through post-translational modification of two critical regulators of MAPK signaling in GBM cells.
Efficient model predictive control for large-scale urban traffic networks

Model Predictive Control is applied to control and coordinate large-scale urban traffic networks. However, due to the large scale or the nonlinear, non-convex nature of the on-line optimization problems solved, the MPC controllers become real-time infeasible in practice, even though the problem is solvable in theory. In this thesis, we mainly focus on the solutions for increasing the real-time feasibility of the MPC controllers for large-scale urban traffic networks.
Optimized haptical, acoustical and visual tuning with different vehicle dynamic models for the BMW driving simulator

Abstract Haptical acoustical and visual feedback play an important role in creating the proper feel of operating a vehicle in a driving simulator Flaws in the feedback may cause strain on the driver that can have adverse effects on the outcomes of the experiment. It is, therefore. essential to have accurate models of the vehicle composing multibody, driveling, steering system and tire dynamics.
A fast-response high power factor converter with a single power stage

An offline switching converter which operates with high input power factor while maintaining fast transient response at its output is described. A single power stage with dual output produces both the desired DC output and a boosting supply in series with the input. The resonant boosting supply at the input is controlled by frequency modulation of the power stage, while the desired DC output is PWM controlled. Since both the input boost supply and the output supply can be controlled independently, a fast transient response can be maintained at both the input (for active current wave-shaping), and at the output (for good output regulation). In addition, even without active control of the boost supply, a reasonably good input current waveshape results due to the natural gain characteristics of the boost resonant circuit. Zero voltage switching is maintained, allowing the circuit to be designed at high frequency to reduce size and cost, and increase performance. <<ETX>>
The technical manipulation of the behaviour of sows exemplified by call feeding and active crushing prevention

Under intensive husbandry conditions, the natural behaviour repertoire of livestock is often contrary to an optimal productivity and also animal welfare. This problem can be reduced by technically manipulating the animal behaviour in terms of precision livestock farming, so that husbandry conditions and animal behaviour adjust mutually to one another. The current work exemplifies this approach for appetitive stimulations at the example of call feeding gestating sows and for aversive stimulations at the example of preliminary studies for a method to actively prevent piglet crushing.