Miracle-dz/UniFAR-FTUs huggingface dataset:
Health assessment for low-voltage electromagnetic coils based on fusion of creep degradation mechanism and transformed MD

Low-voltage electromagnetic coils play ever-increasing roles in safety-critical systems, like electromechanical actuators in more electric aircraft and tractors in zero emission vehicles. Identifying insulation degradation prior to the formation of turn-to-turn short can effectively avoid accidental shutdown and enable predictive maintenance for these systems. High-frequency electrical response analysis is currently a promising technique for electromagnetic coil insulation health assessment. However, the correlation between high-frequency electrical response parameters (HFERP) and actual insulation degradation status (AIDS) is still not clear, which brings challenges in insulation health assessment and remaining useful life prediction. Therefore, in this paper, a fusion method based on creep degradation mechanism and transformed mahalanobis distance (MD) for insulation health assessment is proposed. First, correlation analysis between the coil HFERP and the AIDS is performed from coil insulation coating creep degradation point of view. Second, a coil on-line monitoring parameter (OLMP) for monitoring insulation degradation status on-site is constructed based on transformed MD. A correlation model between OLMP and AIDS is consequently built to assist in determining OLMP failure threshold for coil insulation health assessment. Coil accelerated testing shows that the fusion method can be used to assess insulation status prior to the formation of harmful shorts, enabling condition-based maintenance for components or systems that incorporate electromagnetic coils.
On the Form and Mode Of Emplacement of the Ben Buie Intrusion, Island of Mull, Argyllshire

Abstract Field evidence and theoretical arguments are used to elucidate the form of the intrusion. In the absence of a more accurate term this is described as chonolithic. Passive injection of the magma into a potential vacuum has enabled control to be exercised on the intrusion-form by the country rocks and their structures. The effects of this control are discussed.
Geomorphological map of the NW Coast of the Island of Malta (Mediterranean Sea)

This paper presents the results of geomorphological investigations carried along the north-western coast of the Island of Malta. Field surveys, accompanied by aerial photo-interpretation, have led to the production of a geomorphological map at 1:7500 scale which outlines the main processes and related landforms. The latter are the result of the complex interplay of structural, gravitational, coastal and karst processes. Particular attention was devoted to the recognition, identification and mapping of landslides which affect large coastal sectors of the study area, locally giving rise to hazardous conditions.
ACCELERATED AGEING ASSESSMENT OF BITUMEN AS A PRESERVATIVE FOR THE TREATMENT OF Gmelina arborea WOOD

Concerns about the health and environmental risks linked with the use of preservatives, such as chromate copper arsenate (CCA), zinc chloride, mercuric chloride, and the oil-born preservative creosote, prompted the quest for the use of readily available bitumen as a wood preservative. Using samples that had been processed into dimensions of 20 × 20 × 60 mm, the durability and physical characteristics of Gmelina arborea wood treated with bitumen were evaluated. The samples were dried for 24 hours in an oven set to 103°C and treated with hot bitumen at a melting point of 270°C to ensure the flow and maximum penetration of the bitumen. The density showed mean values of 504.93 and 498.71 kg/m3 for the untreated and treated samples, respectively, with the treated samples recording lower values due to the thermal difference in the density distribution between the untreated and treated wood samples. The average weight loss due to leaching of the untreated and treated wood samples after soaking in cold water and hot water was 3.07% and 0.07%, 1.49% and 1.38% respectively for the treatment. The study confirmed the suitability of using bitumen as a preservative for treating G. arborea wood in an environment with extreme weather conditions without causing serious leaching, thereby exposing the wood to degrading agents.
Modelling the response of the Lambert Glacier–Amery Ice Shelf system, East Antarctica, to uncertain climate forcing over the 21st and 22nd centuries

The interaction between the climate system and the large polar ice sheet regions is a key process in global environmental change. We carried out dynamic ice simulations of one of the largest drainage systems in East Antarctica: the Lambert Glacier–Amery Ice Shelf system, with an adaptive mesh ice sheet model. The ice sheet model is driven by surface accumulation and basal melt rates computed by the FESOM (Finite-Element Sea-Ice Ocean Model) ocean model and the RACMO2 (Regional Atmospheric Climate Model) and LMDZ4 (Laboratoire de Meteorologie Dynamique Zoom) atmosphere models. The change of ice thickness and velocity in the ice shelf is mainly influenced by the basal melt distribution, but, although the ice shelf thins in most of the simulations, there is little grounding line retreat. We find that the Lambert Glacier grounding line can retreat as much as 40 km if there is sufficient thinning of the ice shelf south of Clemence Massif, but the ocean model does not provide sufficiently high melt rates in that region. Overall, the increased accumulation computed by the atmosphere models outweighs ice stream acceleration so that the net contribution to sea level rise is negative.
A blended learning approach for teaching thoracic radiology to medical students: a proof-of-concept study

Introduction The best way to impart knowledge to medical students is still unclear. Therefore, we designed a blended learning course in thoracic radiology including both “traditional” in-class time as well as online learning modules. The aims were (1) to investigate students’ attitudes toward this blended learning approach; and (2) to test whether it improved their knowledge about thoracic radiology. Methods A prospective study was conducted at the local medical center; 156 fourth-year medical students completed this study. Before and after the course, students had to complete (1) questionnaires to investigate their attitudes (7-point Likert scale); and (2) an objective test to assess their knowledge (multiple-choice/free text questions; results as % of correct answers). Results Regarding (1), the course led to an improvement in all items compared to baseline, exemplary: interest in thoracic radiology (precourse 4.2 vs. 5.4 postcourse) and the fulfillment of students’ expressed requirements regarding the teaching content (4.5 precourse vs. 6.2 postcourse). Furthermore, the great majority (88%) of our participants wished for more online learning offerings in the future. Regarding (2), the course led to improved knowledge on the objective test (precourse: 40% vs. postcourse: 63% correct answers). Conclusion This feasibility study showed the successful design and implementation of a blended learning approach in thoracic radiology. Furthermore, it revealed medical students’ positive attitudes toward this approach and showed an increased knowledge in thoracic radiology. Thus, such approaches might be used to enrich the teaching armamentarium in medical education and to further enhance interest and knowledge in thoracic diseases among medical students.
A Centralized Cross-Layer Protocol for Joint Power Control, Link Scheduling, and Routing in UWSNs

The characteristics of volatile ocean environments and complex acoustic communication channels have posed great difficulties to the design of real-time data transmission in underwater wireless sensor networks (UWSNs). In this article, we develop a centralized cross-layer protocol that mitigates network interference and maximizes concurrent transmissions to reduce end-to-end delay. Instead of optimizing individual layers separately, we blend the traditional layered architecture and combine the physical layer, medium access control (MAC) layer, and network layer functions together. Specifically, we optimize the power control in the physical layer, link scheduling in the MAC layer, and routing in the network layer jointly to achieve a global optimization of end-to-end delay. First, the joint design problem is formulated as a mixed-integer linear programming (MILP) problem, which is an NP-hard problem and hard to solve mathematically. Then, we propose a bio-inspired-algorithm-based solution, namely, the discrete improved artificial bee colony (DIABC) algorithm, aiming at finding an approximate optimal cross-layer scheduling scheme. To further reduce end-to-end delay, we optimize the uplink frame structure and routing metric in the centralized cross-layer framework. The simulation results show that the proposed protocol achieves network performance improvement in terms of end-to-end delay, service rate, and energy consumption.
La supervisión estatal de la calidad de la educación en los colegios particulares del sector urbano del cantón Guayaquil

The government aims to provide a high level of education. It has been proved that better supervision is paramount to achieve this objective. This investigation gathers information that allows authorities, specifically the Education Ministery to identify weak points, focusing on a continuous improvement basis. The Target Population for this investigation is formed by Private High Schools located in urban Guayaquil. The Methodology: Principals and Sub-Principals filled out a questionnaire. The recovered information was contrasted with the Educational Supervision responsibilities and analyzed in terms of the sample and statistical dispersion An univariate and multivariate analysis was conducted afterwards to present conclusions and recommendations.
Linguistic findings in persons with schizophrenia—a review of the current literature

Introduction Alterations of verbalized thought occur frequently in psychotic disorders. We characterize linguistic findings in individuals with schizophrenia based on the current literature, including findings relevant for differential and early diagnosis. Methods Review of literature published via PubMed search between January 2010 and May 2022. Results A total of 143 articles were included. In persons with schizophrenia, language-related alterations can occur at all linguistic levels. Differentiating from findings in persons with affective disorders, typical symptoms in those with schizophrenia mainly include so-called “poverty of speech,” reduced word and sentence production, impaired processing of complex syntax, pragmatic language deficits as well as reduced semantic verbal fluency. At the at-risk state, “poverty of content,” pragmatic difficulties and reduced verbal fluency could be of predictive value. Discussion The current results support multilevel alterations of the language system in persons with schizophrenia. Creative expressions of psychotic experiences are frequently found but are not in the focus of this review. Clinical examinations of linguistic alterations can support differential diagnostics and early detection. Computational methods (Natural Language Processing) may improve the precision of corresponding diagnostics. The relations between language-related and other symptoms can improve diagnostics.
The Spatial and Temporal Variation of NDVI and Its Relationships to the Climatic Factors in Red River Basin

This paper studies the ecological effects of the "corridor-barrier" function of valleys and mountains to the spatial-temporal variation of NDVI and its relationships to the climatic factors in the Red River Basin by using GIS and Geostatistics methods based on the GIMMS data set from 1981~2006,SPOT VEG data in 2006 and the daily rainfall and temperature data of 42 meteorological stations in the basin from 1981~2001.The results show that:(1) The spatial autocorrelation degree of the vegetation index are significant variability in different direction,in generally,the distribution of the vegetation index are structurally influenced by the factors such as topography and the pattern of water and heat distribution,but the variability are found in different direction: under the "barrier" function of Ailao mountains,the Fractal dimension of the vegetation index in southwest-northeast and east-west direction are low,which means the spatial variability of vegetation index caused by random variability is less than that by structural variability;Under the "corridor" function of valleys,the Fractal dimension of the vegetation index in northwest-southeast and south-north direction are high,which means the spatial distribution of vegetation index is relative uniformity. (2) There exists the time lag effect that NDVI response to the rainfall and temperature changes,the range of the lag time is between 15~165 days,the NDVI response to the rainfall is faster than that to the temperature;under the "corridor-barrier" function of the valleys and mountains,the lag time and sensitivities of vegetation response to the temperature and rainfall has obviously spatial differences. (3)The vegetation of the Red River Basin does not have significant increased trends,but regional difference and spatial heterogeneity are obviously;66.77% of whole regional vegetation increased while 33.23% of that decreased,the change rate of annual NDVI is between-15.23%~23.16%.
Improved applicability of ray tracing in seismic acquisition, imaging, and interpretation

Ray-based seismic modeling methods can be applied at various stages of the exploration and production process. The standard ray method has several advantages, e.g., computational efficiency and the possibility of simulating propagation of elementary waves. As a high-frequency approximation, the method also has a number of limitations, particularly with respect to a lack of amplitude reliability in the presence of rapid changes of the model functions representing elastic parameters and interfaces. Given the objective of improving the applicability of the standard ray method, we present a strategy that does not require specific extension to finite frequencies. Instead, we define each ray-based process as an element of a system that, as a composite process, is able to obtain better results than the ray-based process applied alone. Other elements of the composite process can be finitedifference modeling or numerical solutions for surface and volume integrals, which are basic constituents of Kirchhoff modeling and imaging. We also include among the process elements recently developed techniques for simulating the migration amplitude on a target reflector and in a local volume, e.g., a reservoir zone. The model is decomposed according to its complexity into volume elements, surface elements, or a combination. The composite process consists of a specified interaction between process elements and model elements, which fits well with the philosophy of modern software design. Model elements that will be exposed to ray-tracing algorithms may need appropriate preparation, e.g., smoothing and resampling. We demonstrate specifically, in a tutorial example, that simulating the seismic response from a reflector by ray-based composite processes can yield better results than applying standard ray tracing alone.
Review on InSAR based displacement monitoring of Indian Himalayas: issues, challenges and possible advanced alternatives

Abstract Natural and man-made disasters like earthquakes, landslides, avalanches, unplanned mining are some of the most serious factors responsible for earth surface displacement. These incidences can be harmful for the society due to loss of life and also threatful for future urban development. Therefore, continuous monitoring of disasters in terms of displacements is of fundamental importance in a modern well-organized society to understand its effects on the social and economic fabric. Availability of SAR data has been proved to be an excellent source for estimation of surface displacements with high accuracies. However, in India, SAR interferometry-related displacement measurement has still not gained appreciable momentum. More rigorous research needs to be carried out for the efficient use of this new generation technique. This review article is an attempt to discuss the issues related to SAR-based displacement studies so far conducted on Indian Himalayan region and possible advanced alternatives.
Garnet Stability in Metabasites Inferred from Dehydration Melting Experiments and Implications for Lower Crustal Delamination

Summary We present garnet stability relations during dehydration melting of two MORB-type mafic bulk compositions in the temperature range 775-1050 o C and from 7-22.5 kbar. Garnet was found to be stable at pressures above 10 kbar and at temperatures >800 o C. Calculated density of the restite during the experiments is directly correlated with the modal abundance of garnet and plagioclase. Based on the variation of the restite density during melting we argue that crustal thickness in excess of 55 km is required to effect delamination of lower crust.
Modeling and control of a bedside cable-driven lower-limb rehabilitation robot for bedridden individuals

Individuals with acute neurological or limb-related disorders may be temporarily bedridden and unable to go to the physical therapy departments. The rehabilitation training of these patients in the ward can only be performed manually by therapists because the space in inpatient wards is limited. This paper proposes a bedside cable-driven lower-limb rehabilitation robot based on the sling exercise therapy theory. The robot can actively drive the hip and knee motions at the bedside using flexible cables linking the knee and ankle joints. A human–cable coupling controller was designed to improve the stability of the human–machine coupling system. The controller dynamically adjusts the impedance coefficient of the cable driving force based on the impedance identification of the human lower-limb joints, thus realizing the stable motion of the human body. The experiments with five participants showed that the cable-driven rehabilitation robot effectively improved the maximum flexion of the hip and knee joints, reaching 85° and 90°, respectively. The mean annulus width of the knee joint trajectory was reduced by 63.84%, and the mean oscillation of the ankle joint was decreased by 56.47%, which demonstrated that human joint impedance identification for cable-driven control can effectively stabilize the motion of the human–cable coupling system.
The Configuration Change and Train Effect Mechanism of Multi-Cell Storms

Several multi-cell storm systems occurring in the Beijing area have been investigated by using the low-level thermal and dynamical retrieval system of four-dimensional variational assimilation (4Dvar) based on the Variational Doppler Radar Analysis System (VDRAS). This paper examines the physical mechanism of configuration processes, intensity changes, and train-effect phenomena that occur during the transmission of linear multi-cell storms. The following results are reported: (1) In a multi-cell storm system in which the transmission direction of the cells is constant with a convective band such as a squall line, the configuration changes such that linear reflectivity becomes arched, and intensity changes of the cells are related to interaction of cells’ transmitting process and environmental low-level air flow. If the frontal inflow is a warm and moist air stream, and stronger vapor convergence is present, the cell flourishes more easily and transmits faster; otherwise, the cell weakens and transmits slowly. Therefore, in squall-line system nowcasting, the intersection of the multi-cell transmitting direction and the environmental vapor convergent line should be closely followed because the cell will travel faster, and the most severe effects of convection will occur. (2) In a multi-cell system that shows characteristics of a train effect, the cell’s transmitting feature and developing environment differ almost completely from those of the multi-cell previously mentioned. Train-effect phenomena generally occur in low-level warm and moist air streams or neighboring low-level jets in unstable ambient atmospheric conditions. The transmitting mechanism of the storm cell can be connected with the propagation and stimulation of an inertial gravity wave such that the warm and moist air stream or low-level jet is a transmitting band for warm vapor advection. When inertial gravity wave propagates from high to lowθ se , the wave receives energy from the ambient atmosphere and develops constantly. Therefore, during storm cell transmission, cells gradually enhance and become arranged in a row to produce the torrential rain center in the leading end of the wave train.
Research on Stock Price Prediction Based on CNN-LSTM Combined Model

: It is difficult to forecast time series data such as stock prices because of the complexity of the internal structure of the stock price system and the diversity of external factors that determine the complexity of the stock market and the uncertainty of the stock price forecasting task. In addition, the impact of different factors on stock prices may be linear or non-linear. Therefore, this paper proposes a combined CNN-LSTM model with good results and generalization ability, which can fully exploit the advantages of each model in stock price prediction and improve the accuracy and stability of prediction. This research can improve the effectiveness of stock price prediction by constructing suitable model structures, parameter configurations and optimization algorithms to provide investors and financial practitioners with a powerful reference for decision-making. An attention mechanism is also introduced in order to improve the prediction accuracy of the CNN-LSTM model, and the results confirm the efficacy of the proposed approach.
Theory and design of interferometric synthetic aperture radars

Interferometric synthetic aperture radar (InSAR) is a method which may provide a means of estimating global topography with high spatial resolution and height accuracy. The authors present a derivation of the signal statistics, an optimal estimator of the interferometric phase, and the expressions necessary to calculate the height-error budget. These expressions are used to derive methods of optimising the InSAR-system parameters, and are then used in a specific design example for a system to perform high-resolution global topographic mapping with a one-year mission lifetime, subject to current technological constraints. A Monte Carlo simulation of this InSAR system is performed to evaluate its performance for realistic topography. The results indicate that this system has the potential to satisfy the stringent accuracy and resolution requirements for geophysical use of global topographic data.
Pendekatan strategis untuk mengatasi sikap agresif audiens dalam konteks difusi informasi di media sosial

Purpose. This study extensively examines social media aggression's patterns and impacts on information reception, focusing on behaviors like cyberbullying and hate speech. It aims to uncover the causes and consequences of these actions, contributing to mitigation strategies.Methodology. The study utilizes data analysis with software assistance and random questionnaires from various respondents to explore strategies for reducing aggression in information diffusion. Qualitative analysis involves examining these strategies with references to social media platform observations.Results and discussion. Findings reveal that respondents prioritize sharing truthful information, even in the face of aggression. They maintain a positive attitude to clarify content and avoid the spread of falsehoods.Conclusions. This study underscores the importance of self-regulation and responsible online behavior. Enhancing self-regulation skills, maintaining a responsible online presence, and selecting content consumption are essential for eliminating unnecessary or aggressive information. These findings offer valuable insights into social media aggression dynamics, so it develops effective mitigation strategies in the digital age.