Miracle-dz/UniFAR-FTUs huggingface dataset:
Cracked shaft detection and diagnostics: A literature review

Cracks in shafts have long been identified as factors limiting the safe and reliable operation of turbomachines. They can sometimes result in catastrophic failure of equipment (rotor bursts) and, more often, in costly process upsets, repairs and premature scrapping and replacement of equipment. Cracked shafts still pose a significant and real threat to equipment in spite of the great advances made in the areas of metallurgy, manufacturing and design. In the past two decades, much research and many resources have gone into developing various on-line and off-line diagnostic techniques to effectively detect cracks before they cause serious damage. Because of the enormous amount of ongoing research in this area (more than 500 technical papers have been published in English alone in the past 30 years), there is a real need to periodically condense and summarize the information. This paper reviews literature on cracked shaft detection and diagnostics published after 1990.
Integrated Trauma-Focused Psychotherapy for Traumatic Stress and Substance Use: Two Adolescent Case Studies

Post-traumatic stress disorder (PTSD) and substance use disorder (SUD) occur frequently as comorbid diagnoses among adolescents. Historically, these conditions have been treated using a sequential model; however, emerging evidence suggests that an integrated treatment model may be most effective. This article presents two de-identified clinical case studies from an ongoing randomised controlled trial examining the efficacy of an integrated, exposure-based, cognitive-behavioral psychotherapy (CBT) for PTSD and SUD among adolescents (COPE-A), relative to a supportive counselling control condition (person-centred therapy). In both case studies, participants were randomised to receive the COPE-A integrated treatment, which incorporates prolonged exposure (PE) including imaginal and in vivo exposure as a core treatment component alongside CBT for PTSD and SUD. The clinical profile and treatment response of each participant is discussed. Promising results were found in both cases, with substantially reduced traumatic stress symptoms and decreased or stable levels of substance use by the end of treatment. Clinical implications of these early findings are discussed.
Multiaxial Behaviors of Laminated Rubber Bearings and Their Modeling. I: Experimental Study

Cyclic behaviors of three types of laminated rubber bearings under multiaxial loading state are studied. First, the characteristics of the restoring forces of these bearings in small amplitude are investigated. The experimental results show that the equivalent stiffness of high damping rubber bearings is increased and the damping ratio is decreased as the increase of the amplitude. In addition, the restoring force of a lead rubber bearing is found to highly depend on the vertical load. Second, a triaxial loading experiment, in which two-directional displacement paths are given to the bearings under a constant vertical load, is conducted. The experimental results indicate that horizontal restoring forces possess the coupling effects. The equivalent stiffness and damping ratio of high damping rubber bearings and natural rubber bearings are increased due to this coupling effect in comparison with the biaxial loading case, while the lead rubber bearing shows a slight decrease in them. Hence it is understood that the effects of the triaxial loading are not negligible and these have to be considered in a rational and reliable design.
Managerial Overconfidence and Investment Decision: Empirical Validation in the Tunisian Context

Nowadays and especially after the revolution and the troubles that Tunisia has witnessed, the investment phenomenon has been affected and remains inefficient. Indeed this inefficiency is due to an excessive investment behavior. However, this issue has been discussed under the influence of behavioral finance. We explore that the manager’s overconfidence can explain his behavior when it comes to business investment. The objective of this investigation is to examine the effect of managers' personal characteristics, namely overconfidence, on the investment decision of 45 Tunisian listed companies from 2009 to 2018. We construct a proxy made up of both the remuneration of the directors and his decision-making power to measure the excess of managerial confidence and we use the Richardson model to measure the volume of investment. Our empirical results give the following conclusion: A positive and significant relationship between the manager’s overconfidence and the investment volume of listed Tunisian companies.
Time-dependent interface trap effects in MOS devices

A fast charge-pumping technique was used to measure the radiation-induced buildup of interface traps in MOS structures after exposure to short-pulse irradiation. A strong dependence of the time scale of the late-time buildup (t >10 ms) on the oxide electric field at very early times (10 mu s to 0.5 ms) is explained in terms of a positive-ion-drift model. The early-time buildup (t >
The low frequency noise in reverse biased rectifier diodes

The low frequency noise in rectifier diodes in the breakdown regime is investigated as a function of the reverse current. A dynamic "competition" between impact ionization and microplasma switching explains the nonmonotonic, repetitive and correlated variations in the breakdown dynamic resistance (dV/dI) slope, the noise level, and the noise waveform.
EFFECTS OF WATER STRESS ON WATER USE AND YIELD OF ONION

PEJIC, B. , B. GAJIC, Dj. BOSNJAK, R. STRICEVIC, K. MACKIC and B. KRESOVIC, 2014. Effects of water stress on water use and yield of onion. Bulg. J. Agric. Sci., 20: 297-302 The study of effects of water stress on yield and water use by onion plants was carried out at the experimental field of the Institute of Field and Vegetable Crops in Novi Sad in the period 2005-2007. Onion sensitivity to water stress was determined using a yield response factor (Ky). The values of Ky were derived from the linear relationship between relative evapotranspiration deficits (1-ETa/ETm) and relative yield decrease (1-Ya/Ym). To assess the irrigation effect on onion yield, irrigation water use efficiency (Iwue) and evapotranspiration water use efficiency (ETwue) were determined. Values of Ky in the growing season (Ky 1.78) indicate that onion is highly sensitive to water stress under the climate conditions of the Vojvodina region. The amounts of water used on evapotranspiration under irrigation and non-irrigation conditions ranged from 448.4 to511.9 mm, and 290.2 to 393.9 mm, respectively. The values of Iwue and ETwue varied from 4.35 to 28.05 kg ha -1/m-3 and 7.87 to 19.51 kg ha-1/m-3, respectively, mostly depending on the favorableness of the year for the onion production and irrigation water applied. Ky, Iwue and ETwue can be used as a good basis for onion growers in the region in terms of optimum irrigation water use, for the planning, design and operation of irrigation projects in the region, and also for the improvement the production technology of the crop.
Tracking and Data Fusion Applications

Abstract : In many engineering applications, including surveillance, guidance, or navigation, single stand-alone sensors or sensor networks are used for collecting information on time varying quantities of interest, such as kinematical characteristics and measured attributes of moving or stationary objects of interest (e.g. maneuvering air targets, ground moving vehicles, or stationary movers such as a rotating antennas). More strictly speaking, in these applications the state vectors of stochastically moving objects are to be estimated from a series of sensor data sets, also called scans or data frames. The individual measurements are produced by the sensors at discrete instants of time, being referred to as scan or frame time, target revisit time, or data innovation time. These output data (sensor reports, observations, returns, hits, plots) typically result from complex estimation procedures themselves characterizing particular waveform parameters of the received sensor signals (signal processing). In case of moving point-source objects or small extended objects, i.e. typical radar targets, often relatively simple statistical models can be derived from basic physical laws describing their temporal behavior and thus defining the underlying dynamical system. In addition, appropriate sensor models are available or can be constructed, which characterize the statistical properties of the produced sensor data sufficiently correct. As an introduction to target tracking and data fusion applications characteristic problems occurring in typical radar applications are presented; key ideas relevant for their solution are discussed.
The isoengine: realisation of a high-efficiency power cycle based on isothermal compression

A novel high-efficiency internal combustion engine for power generation and direct-drive applications is being developed. Distillate-fuelled power plants in units of 7 MW electrical output are predicted to reach a net electrical efficiency of 60%. An efficiency of 58% is targeted for the gas-fired version. This compares with a net electrical efficiency of about 45% for advanced reciprocating engines of similar output but conventional design, and represents a step change in the efficiency of distributed power plant. Besides distillate oil and natural gas, the engine will be able to use suitable biofuels for efficient power generation. A 3 MW prototype engine using the full-scale engine geometry has been built to confirm the performance of the isoengine cycle. A partnership agreement has been signed by RWE Innogy and Mitsui Engineering and Shipbuilding for the future testing and development of the engine.
Information Security Education Relationships on Incidents and Preventions: Cyber Assurance Literacy Needs

Educational institutions are the step for defense through training and educating (Mensch & Wilkie, 2011). The role of education in information security is to reduce risk, reduce incidents, and increase preventive actions. But does education decrease security incidents of being a victim and increase preventive actions? Nothing was found in the literature that shows education will lower the number of security incidents of being a victim. The purpose of this paper is to determine if security incidents can be lowered by education. Findings showed that education does increase preventative behavior and is unrelated to the number of security incidents. An interesting find was the more preventative behavior, the more security incidents occurred. The discussion section explores the possible whys. Since this study used college students, a\future study is needed to use a general population.
Undercutting and Contact Characteristics of Cylindrical Gears With Curvilinear Shaped Teeth Generated by Hobbing

Undercutting characteristics of the curvilinear-tooth gear, cut by a hob cutter performing motion with two independent parameters, are investigated. The tooth contact analysis (TCA) and the surface topology method are applied to study the kinematic errors (KE) and contact ellipses of the curvilinear-tooth gear under different assembly conditions. Several numerical examples are presented to demonstrate the influence of the assembly errors and design parameters of the gear on the KEs and contact ellipses of the gear pair.Copyright © 2005 by ASME
Starting algorithm and performance of a PM DC brushless motor drive system with no position sensor

The fundamentals of starting are investigated, and the development of an algorithm based on such an understanding is reported. The proposed algorithm is simulated, working with a full-wave inverter-controlled permanent-magnet DC brushless (PMDCBL) motor drive system. The simulation flowchart and results are described. Experimental results validating the starting algorithm are provided. <<ETX>>
Power leakage, characteristic impedance, and leakage-transition behavior of finite-length stub sections of leaky printed transmission lines

Power leakage and leakage transition phenomena in finite-length stub sections are studied for slot- as well as strip-type leaky transmission lines. A three-dimensional (3-D) method of moments is used for the rigorous analysis of the stub sections. The results reveal several important characteristics of power leakage in printed circuits that are not obtainable from the two-dimensional (2-D) analyses of ideal infinite-length lines. A new definition of the characteristic impedance for a leaky printed transmission line is proposed, which is shown to correctly model the impedance behavior of the finite-length sections. It is noted that the standard definitions of characteristic impedance, commonly used for nonleaky transmission lines, may not apply to practical circuits when leakage exists. Further, the leakage transition behavior in the finite-length sections, operated around a "mode-transition" region, is explained from the 3-D analysis results. Leakage analyses of ideal infinite-length lines can not model such transition excitation in finite-length circuits.
Group Differences Between Counselor Education Doctoral Students’ Number of Fieldwork Experiences and Teaching Self-Efficacy

This study examined differences in 149 counselor education doctoral students’ self-efficacy toward teaching related to their number of experiences with fieldwork in teaching (FiT). Results showed counselor education doctoral students began FiT experiences with high levels of self-efficacy, which decreased after one to two FiT experiences, increased slightly after three to four FiT experiences, and increased significantly after five or more FiT experiences. We discuss implications for how counselor education doctoral programs can implement and supervise FiT experiences as part of their teaching preparation practices. Finally, we identify limitations of the study and offer future research suggestions for investigating FiT experiences in counselor education.
Views and experiences of compassion in Sri Lankan students: An exploratory qualitative study

Practicing compassion has shown to reduce distress and increase emotional well-being in clinical and non-clinical populations. The existing research is primarily focused on Western populations although the concepts of compassion are heavily influenced by Asian Buddhist views. There is a dearth of compassion research conducted particularly in the Asian context. Therefore, this study aimed to explore the views and lived experiences of compassion in Sri Lankan students, to understand whether compassion is a socially embraced construct in Sri Lanka, considering that Sri Lanka is a Buddhist influenced society. Participants’ views and lived experiences of compassion towards themselves and to/from others were also investigated, with a specific focus on their perceived inhibitors and facilitators of compassion. Aims were set to identify whether Western compassion-based practices could be successfully applied to Asian societies such as Sri Lanka. An Interpretative Phenomenological Analysis approach was used to obtain and analyse qualitative data from a convenience sample of 10 Sri Lankan students, recruited from a Psychology course. The phenomenological analysis of the semi-structured face-to-face interviews elicited three predominant themes: What compassion means to me, what I make of it, and compassion through facilitators and inhibitors. The findings suggested that participants shared a similar understanding of the concept of compassion as reflected in the Western definitions. Experiences and views of compassion were shaped by several factors including religion, culture, society, and upbringing. In general, this study revealed that participants were well aware of the concept of compassion as well as its impact on their psychological well-being. Despite this, inhibitors existed in experiencing compassion. The religious and collectivistic-cultural influences need to be further explored and taken into account when implementing Western compassion-based practices to non-Western contexts such as Sri Lanka.
Effect of irrigation levels on fruit characteristics, total fruit yield and water use efficiency of melon under drip irrigation system

Impact of different irrigation levels on the melon fruit characteristics, total fruit yield and water use efficiency (WUE) was studied under field conditions in arid region. Two experiments with three treatment levels of actual evapotranspiration (AET) were tested. These treatments were: 0.50 AET (T1), 0.75 AET (T2) and 1.00 AET (T3). Irrigation levels had a significant effect on length, diameter, weight, Brix, flesh firmness, seeds, fertile seeds and sterile seeds of melon fruit (p<0.05). Increasing the irrigation levels increased the length, diameter, weight, Brix, flesh firmness, seeds, and fertile seeds of melon fruit. In Experiment 1, the means of total fruit yield were 19.3, 23.5, and 21.1 t ha -1 at 0.50 AET, 0.75 AET and 1.00 AET, respectively. In Experiment 2, the means of total fruit yield were 15.6, 19.2, and 21.7 t ha -1 at 0.50 AET, 0.75 AET, and 1.00 AET, respectively. The irrigation levels did not have significant effect on the WUE in Experiment 1 and vice versa in Experiment 2. The total melon fruit yield and WUE values were different in the experiments due to variation in the planting date during the summer season. For irrigating melon plants, the most preferable irrigation level for getting the highest total fruit yield was obtained at 0.75 AET, while, the most preferable irrigation level for the highest WUE was obtained at 0.50 AET.
An analytical approach to study the effect of carrier velocities on the gain and breakdown voltage of avalanche photodiodes

A simplified model for calculating gain and breakdown voltage of avalanche photodiodes (APDs) having constant ionization coefficients in their multiplication layer is presented. Good agreement is seen between the calculated results and the experimental data for published InP-InGaAs separate absorption, grading, charge, and multiplication (SAGCM) APDs. The model denotes that the gain and the breakdown voltage have a dependence on the carrier velocity ratio that is not predicted by conventional models. Hence, by comparing the calculated and measured static characteristics of the APD, one can estimate the velocity of minority carriers in the multiplication region of the device.
A high-performance induction motor drive with on-line rotor time-constant estimation

A high-performance induction motor (IM) speed drive with online adaptive rotor time-constant estimation and a proposed recursive least square (RLS) estimator is introduced in this paper. The estimation of the rotor time-constant is on the basis of the model reference adaptive system (MRAS) theory; and the rotor inertia constant, the damping constant and the disturbed load torque of the IM are estimated by the proposed RLS estimator, which is composed of an RLS estimator and a torque observer. Moreover, an integral proportional (IP) speed controller is designed online according to the estimated rotor parameters; and the observed disturbance torque is fed forward to increase the robustness of the induction motor speed drive.
Synergistically Optimized Electron and Phonon Transport of Polycrystalline BiCuSeO via Pb and Yb Co-Doping.

Polycrystalline BiCuSeO is considered as a promising thermoelectric material due to its intrinsically low thermal conductivity and moderate Seebeck coefficient. However, its low electrical conductivity and coupled electron-phonon transport properties restrict the further improvement of the thermoelectric performance. In this work, Pb and Yb dopants are incorporated into BiCuSeO to substitute for Bi sites via ball milling and high-pressure and high-temperature sintering, leading to a synergistic optimization of the electron and phonon transport and improved thermoelectric performance. The carrier concentration exhibits an enhancement with increasing Pb&Yb co-doping contents. Meanwhile, the decreased carrier mobility is suppressed appropriately by coordinating with the interplay of Pb and Yb dopants on the electronic structure. Besides, Pb&Yb co-doping combined with high-pressure and high-temperature sintering introduces abundant grain boundaries, dislocations, and point defects to effectively decrease the lattice thermal conductivity by scattering phonons in a broad frequency range. Coupled with the synergistic optimization of the electrical and thermal properties, a maximum zT of 1.2 is achieved in Bi0.88Pb0. 06Yb0.06CuSeO at 850 K, which significantly outperforms the majority of oxygen-containing thermoelectric materials. Our study suggests that dual doping of bivalent ions and rare-earth elements at Bi sites is an effective strategy for improving the thermoelectric performance of BiCuSeO.
Randomized Controlled Trial Study of the Impact of a Spiritual Intervention on Hope and Spiritual Well-Being of Persons with Cancer

Abstract Objective: To determine the impact of spiritual intervention on hope and spiritual well-being of persons with cancer. Methods: Randomized controlled trial in which 74 patients with cancer referring to a chemotherapy ward of Shahid Rajaie Hospital in Yasuj city, Iran, were participated. The eligible patients were randomly assigned to either intervention or control group. Spiritual-based intervention was performed based on the protocol in four main fields namely; religious, existence, emotional and social over 5 sessions before chemotherapy. The participants in the control group had received usual cares. Data were collected using Snyder's Hope Scale and Ellison's Scale Spiritual Well-Being Scale on a week before and after intervention. Results: The total mean scores of the scales of hope and spiritual well-being in both groups did not present statistical differences in the pre-intervention assessment. In contrast, at the post assessment, significant differences (p<0.001) were found in the mean scores between the intervention and control groups on the hope scale (60.9 versus 39.8) and on the spiritual well-being scale (94.3 versus 71.6). Conclusion: Spiritual intervention could promote hope and spiritual well-being of persons with cancer.