Miracle-dz/UniFAR-FTUs huggingface dataset:
Low-Complexity Heun's Method-Based FCS-MPC With Reduced Common-Mode Voltage for a Five-Level Inverter

The conventional finite control-set model predictive control (FCS-MPC) methods need a cost function with weighting factors to minimize the common-mode voltage (CMV) in the multilevel inverter (MLI) fed electric drive systems. Moreover, these methods require a higher sampling time for real-time implementation, resulting in a rich harmonic content in the inverter ac currents. This article addresses these concerns by proposing a low-complexity FCS-MPC with CMV minimization for a five-level inverter (FLI). The per-phase philosophy is adopted in the design and implementation of the proposed FCS-MPC for an FLI, resulting in a maximum number of predictions of 6 per phase only (a total of 18 predictions in a three-phase FLI system). Moreover, the proposed FCS-MPC minimizes the CMV without using a cost function, leading to superior current harmonic performance. Additionally, the Heun's integration method is introduced in the formulation of discrete-time models of the FLI, and they are used in real-time implementation of the proposed FCS-MPC. The superiority of the proposed method is demonstrated through a dSPACE-controlled FLI laboratory prototype. Furthermore, a comparative analysis of the proposed and the conventional FCS-MPC methods is presented in terms of total demand distortion of the current, inverter CMV, and the computational burden.
Influence of ZSM-5 Crystal Size on Methanol-to-Olefin (MTO) vs. Ethanol-to-Aromatics (ETA) Conversion

Crystal size is a key parameter of zeolites applied as catalysts. Herein, ZSM-5 crystals with similar physicochemical and acid properties, few defects, and aluminum exclusively in tetrahedral coordination are synthesized and the influence of the crystal size on the MTO and ETA conversion is investigated. Short olefins are the main products of the MTO conversion, whereas larger olefins and aromatics dominate the products after ETA conversion. In the case of both feeds, an increased crystal size decreases the catalyst’s lifetime. The MTO conversion over larger ZSM-5 altered the product distribution, which was not the case for the ETA conversion. The reason is that the instantly available aromatics during ETA conversion lead to fast coking and zeolite crystals only active in the outer layers. Thus, the different reactivity of different-sized ZSM-5 is direct proof of a different conversion mechanism for both alcohols.
Neuromorphic Computing Architectures for Real-time Image Processing and Pattern Recognition

Real-time image processing and pattern recognition applications have found a new paradigm in neuromorphic computing systems. In this paper, we quantitatively compare neuromorphic architecture performance to that of conventional computing techniques. We study processing speed, accuracy, and energy usage for diverse image processing jobs using a controlled experimental methodology. The outcomes highlight the advantages of the Neuromorphic architecture, which is distinguished by quicker processing times and greater precision. These results demonstrate the effectiveness of event-driven spiking neural networks and are consistent with earlier studies. Comparisons with hybrid architectures highlight the Neuromorphic architecture's strength as a stand-alone system and point to simpler implementations. However, issues with accuracy fluctuation and the requirement for scalability continue, emphasizing areas for more study. The energy economy of neuromorphic architectures makes them essential parts of real-time image processing and pattern recognition as the field develops.
Measures to improve participation of registered nurses in HIV and AIDS research

Background Registered nurses are crucial in lowering the complications of human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) in Nigeria. Human immunodeficiency virus infects individuals and impairs the immune system, impairing the body’s capacity to fight bacteria, viruses, and other pathogens. Therefore, registered nurse-led initiatives are beneficial in promoting HIV and AIDS research development. However, these evidence-based treatments and professional expectations for registered nurse research creation do not represent contemporary research development on HIV and AIDS by registered nurses. Aim This study aimed to explore measures to improve the participation of registered nurses in HIV and AIDS research in Nigeria. Setting The study was conducted at a general hospital in Ijebu Ode, Ogun State, Nigeria. Methods A qualitative approach design was employed. Participants of the study comprised 31 registered nurses in three focus groups. Results This study demonstrated the importance of research in effectively reducing HIV and AIDS transmission and maintaining good practices in a hospital setting in Nigeria. However, this understanding did not translate into knowledge creation through autonomous research productivity in this context. Conclusion The study discovered that registered nurses were primarily involved in data collection and validation, which did not result in publications. The study found that registered nurses in Nigeria are typically worried about ways to promote nurses’ engagement in research in Nigeria. Contribution These results might be utilised to improve the supply of research services and act as a baseline for future research linked to HIV and AIDS transmission prevention in Nigeria.
Dynamic Changes in Land Cover and Its Effect on Urban Heat Islands

Several studies have demonstrated that the urban heat island (UHI) impact is significantly influenced by changes in urban land cover (LC). In this study, we examined the dynamic change in LC in Shijiazhuang city and its impact on UHI intensity using multisource data, including landsat and LC data. The results showed that 1) the 15-year span exhibited a substantial growth in built-up area from 14.541% to 19.718%, whereas cropland and grassland dropped by 3.342% and 3.625%, respectively. 2) The mean land surface temperature (LST) in the study area increased significantly. From a point-to-plane distribution, the high-temperature zone (>32 °C) grew, and the direction of growth was consistent with urbanization. 3) The average temperature of the barren areas was the highest, followed by the built-up areas. 4) The normalized difference vegetation index and LST have a strong negative association, showing that LST rises with vegetation loss. Our research results provide a scientific basis for deeper understanding of the mechanisms underlying UHI creation, as well as for developing logical land use strategies and evaluating the effects of urbanization on local climates.
Characteristics of earthquake precursory for dissolved CH_4 in ground water at the No.10 spring, Urumqi

Based on the chemical character and origin of the dissolved CH 4 in ground water,The characteristics of seismic precursory of the dissolved CH 4 in ground water at the No 10 spring,Urumqi are analyzed with many earthquake examples within the duration 19 years.It is found that the content of dissolved CH 4 in groundwater before earthquakes basically appears the positive anomaly, the earthquake occur when the anomaly from high to low value or the anomaly return to normal value. Finally, it is believed that the special seismotectonic environment is the reasons that the CH 4 content in the spring have the higher sensitivity for earthquake precursory.
Respiratory Syncytial Virus Reinfections in Children in Western Australia

Respiratory syncytial virus (RSV) reinfection in children is poorly understood. We examined the incidence, characteristics, and outcomes of hospital-attended RSV reinfections in children <16 years in Western Australia between 2012 and 2022. Individuals with repeat RSV detections ≥56 days apart were identified using laboratory data. The incidence of reinfection in the first five years of life was estimated using the total birth population from 2012 to 2017. Clinical data on a subset of reinfection episodes were obtained from two metropolitan pediatric centers. A total of 466 children with hospital-attended reinfections were identified. The median interval between RSV detections was 460 days (interquartile range: 324, 812), with a reinfection rate of 95 per 100,000 individuals (95% confidence interval: 82, 109). Reinfection was most common in children who experienced their first RSV detection <6 months of age. Predisposing factors were identified in 56% of children; children with predisposing factors were older at first and second detections, were more likely to be admitted, and had a longer length of stay. This study highlights the significant burden of hospital-attended RSV reinfections in children with and without predisposing factors. Expanded surveillance with in-depth clinical data is required to further characterize the impact of RSV reinfection.
Rock-physics diagnostics of a turbidite oil reservoir offshore northwest Australia

ABSTRACTInterpreting seismic data for petrophysical rock properties requires a rock-physics model that links the petrophysical rock properties to the elastic properties, such as velocity and impedance. Such a model can only be established from controlled experiments in which both groups of rock properties are measured on the same samples. A prolific source of such data is wellbore measurements. We use data from four wells drilled through a clastic offshore oil reservoir to perform rock-physics diagnostics, i.e., to find a theoretical rock-physics model that quantitatively explains the measurements. Using the model, we correct questionable well curves. Moreover, a crucial purpose of rock-physics diagnostics is to go beyond the settings represented in the wells and understand the seismic signatures of rock properties varying in a wider range via forward seismic modeling. With this goal in mind, we use our model to generate synthetic seismic gathers from perturbational modeling to address “what-if” scenarios.
A High Precision Triaxial Force Sensor Based on Fiber Bragg Gratings for Catheter Ablation

This article proposes a miniature triaxial force-temperature sensor based on fiber Bragg grating (FBG) for catheter ablation. The sensor comprises two miniature flexible hinges, a top cavity, and five tightly suspended optical fibers. The cavity contains an FBG unit for independent temperature sensing, enabling effective temperature decoupling and accurate force measurements. Theoretical models are developed based on the sensor design and finite element simulation validates the sensor’s static performance. Static experiments are conducted on the sensor, demonstrating excellent linearity and sensitivity with force resolutions of (1.65, 2.26, 7.66 mN) in <inline-formula> <tex-math notation="LaTeX">$X$ </tex-math></inline-formula>-, <inline-formula> <tex-math notation="LaTeX">$Y$ </tex-math></inline-formula>-, and <inline-formula> <tex-math notation="LaTeX">$Z$ </tex-math></inline-formula>-directions. A nonlinear neural network model is developed to obtain highly accurate force measurements in arbitrary directions, yielding root mean square errors (RMSEs) of below 2% of the full scale. Temperature compensation experiments are conducted to evaluate the accuracy of the temperature-compensated forces, resulting in RMSEs of (30.7, 35.3, 39.8 mN) in <inline-formula> <tex-math notation="LaTeX">$X$ </tex-math></inline-formula>-, <inline-formula> <tex-math notation="LaTeX">$Y$ </tex-math></inline-formula>-, and <inline-formula> <tex-math notation="LaTeX">$Z$ </tex-math></inline-formula>-directions. In vitro porcine heart experiments are performed for varying loads and varying temperature conditions, respectively, to verify the effectiveness of the proposed sensor. The results suggest that this sensor has a high potential for use in cardiac catheter ablation sensing.
Upper Airway-Related Symptoms According to Mental Illness and Sleep Disorders among Workers Employed by a Large Non-Profit Organization in the Mountain West Region of the United States

The relationships between selected upper airway-related symptoms (speech disturbances, voice disorders, cough, and breathing abnormalities) and mental illness and sleep disorders have been previously demonstrated. However, these relationships have not been compared in a single study with consideration of potential confounding variables. The current research incorporates a descriptive study design of medical claims data for employees (~21,362 per year 2017–2021) with corporate insurance to evaluate the strength of these relationships, adjusting for demographic variables and other important confounders. The upper airway-related symptoms are each significantly and positively associated with several mental illnesses and sleep disorders, after adjusting for demographic and other potential confounders. The rate of any mental illness is 138% (95% CI 93–195%) higher for speech disturbances, 55% (95% CI 28–88%) higher for voice disorders, 28% (95% CI 22–34%) higher for cough, and 58% (95% CI 50–66%) higher for breathing abnormalities, after adjustment for the confounding variables. Confounding had significant effects on the rate ratios involving cough and breathing abnormalities. The rate of any sleep disorder is 78% (95% CI 34–136%) higher for speech disturbances, 52% (95% CI 21–89%) higher for voice disorders, 34% (95% CI 27–41%) higher for cough, and 172% (95% CI 161–184%) higher for breathing abnormalities, after adjustment for the confounding variables. Confounding had significant effects on each of the upper airway-related symptoms. Rates of mental illness and sleep disorders are positively associated with the number of claims filed for each of the upper airway-related symptoms. The comorbid nature of these conditions should guide clinicians in providing more effective treatment plans that ultimately yield the best outcome for patients.
Determinants of Circular Economy: An Empirical Approach in the Context of the United States of America

The USA is the world’s largest economy in terms of the consumption of resources. The excessive and irresponsible consumption of resources in the developed countries has jeopardized the stock of global resources. This quantitative study highlighting the importance of the circular economy (CE), has assessed the factors that would support the circular transition in the USA. Time series analysis based on the Autoregressive Distributed Lag (ARDL) model was employed to analyze the impact of Gross Domestic Product (GDP) per capita, Research and Development expenses, and Renewable Energy consumption on circular economy in the US with annual data from 1971 to 2017. While the study indicated the existence of a long-run relationship between the GDP per capita and renewable energy consumption, no relationship was observed between research and development expenses and the circular economy. The study strongly emphasizes the need for policy interventions to enhance the level of awareness regarding circular economy, increase consumption of renewable energies and steering investments in research and development activities to support CE activities in the USA.
Investigating the Relation of Glass Ceiling Beliefs and Subjective Career Success: Role of Social Support and Gender

With the advancement in the economy, females' participation in the workforce is increasing but they are still underrepresented in senior positions. So, understanding their psychological viewpoints about the glass ceiling and its association with subjective career success (SCS) is important. This study aims to illuminate the association between glass ceiling beliefs and subjective career success through social support in the Indian healthcare sector. Social support is taken as a mediator in this study. The mediation and moderation approach was used to test the proposed model of the study. For the study, a sample of 300 doctors working in corporate hospitals was surveyed. Data were analyzed through structural equation modeling in AMOS to understand the relationship of all variables. The results found that social support mediates the relationship between optimistic glass ceiling beliefs and career success. Furthermore, the moderating impact of gender was also examined on the association of glass ceiling beliefs and subjective career success. The present study is the first to examine the connection between glass ceiling beliefs and subjective career success in the Indian Health sector through the mediation of social support and gender. Theoretical and practical implications are discussed
Depositional system and sequence stratigraphy of the Shashi Formation in Jiangling depression in Jianghan basin, South China

Based on the concept of sequence stratigraphic methodologies, the cyclic sequence of Shashi Formation in age of Paleogene the in Jiangling Depression is classified and correlated in detail, and the strata contrast frameworks of cyclic sequence is defined and established. It shows that Shashi Formation composite of shallow lacustrine and continent source clastic rock and salt deposits that sedimented and developed in the half draught climate. The major deposit system is composed mainly of (1) fluvial delta deposit system; (2) shore to shallow lacustrine deposit; (3) half deep lacustrine sand deposit; (4) mudstone deposits and salt deposits. Lowstand systems tract is characteristiced by alternately developed incised valley, delta and draught salt lacustrine deposits, etc. High stand systems tract is characteristiced by delta deposits, shallow lacustrine deposits. The evolution of those three systems tracts suggests the changing of transgressive and regressive of fluvial delta system and draught salt lake during the depositing. The sequences Sq3 and Sq4 formed the thicker reservoir sand beds, and they have the character of transgressive sequence structure. The reservoir sand mainly distribute in the high stand systems tract. Among these reservoir layers, the water lain mouth bar and subaqueous channel deposits, which is developed in high stand systems tract of Sq1, are of the most important stratigraphical units of the reservoir.
Model zmian powierzchni lodów morskich Arktyki (1979-2013) – zmienne sterujące w modelu „minimalistycznym” i ich wymowa klimatyczna

Zarys treści. Praca omawia model zmian powierzchni zlodzonej Arktyki typu „białej skrzynki”, opierający się na dwu zmiennych niezależnych – wskaźniku oznaczonym jako DG3L, który charakteryzuje intensywność cyrkulacji termohalinowej (THC) na Atlantyku Północnym i wskaźniku D, który charakteryzuje cyrkulację atmosferyczną nad Arktyką. Objaśnienie konstrukcji obu wskaźników i wartości ich szeregów czasowych przedstawione jest w załącznikach Z1 i Z2. Okres opracowania obejmuje lata 1979-2013 i jest limitowany dostępnością danych o zmianach powierzchni lodów morskich w Arktyce. Model liniowy opierający się na tych zmiennych objaśnia ~72% wariancji rocznej powierzchni zlodzonej w Arktyce i powyżej 65% wariancji powierzchni zlodzonej w marcu (maksimum rozwoju powierzchni lodów) i wrześniu (minimum). Główną rolę w kształtowaniu tej zmienności odgrywa zmienność cyrkulacji termohalinowej, rola cyrkulacji atmosferycznej jest niewielka i wykazuje silną zmienność sezonową. Analiza tego modelu wykazała, że rzeczywiste zależności są nieliniowe, a zmiany pokrywy lodonej zachodzą w dwu odrębnych reżimach – „ciepłym” i „chłodnym”. Reżim „ciepły” funkcjonuje w sytuacji, gdy THC jest bardziej intensywna niż przeciętnie (wskaźnik DG3L > 0). Dochodzi wtedy do szybkiego spadku powierzchni lodów w okresie ciepłym – zwłaszcza we wrześniu i powolnego spadku rozmiarów pokrywy lodowej w marcu, cyrkulacja atmosferyczna w tym reżimie odgrywa istotną rolę w kształtowaniu zmian powierzchni lodów. Spadek natężenia THC poniżej przeciętnej (DG3L  0), z opóźnieniem około 6.letnim prowadzi, do przejścia do reżimu „chodnego”. W reżimie chłodnym następuje szybki przyrost powierzchni lodów w okresie ciepłym i bardzo powolny wzrost powierzchni lodów w marcu, rola cyrkulacji atmosferycznej w kształtowaniu zmienności pokrywy lodowej staje się nikła. Po dalszych kilku latach utrzymywania się reżimu „chłodnego” międzyroczne zmiany powierzchni zlodzonej stają się małe. Analizy związków między zmiennymi z przesunięciami czasowymi wykazały, że cyrkulacja atmosferyczna nad Arktyką stanowi funkcję THC. W rezultacie, za główną przyczynę zmian powierzchni zlodzonej Arktyki należy uznać rozciągnięte w czasie działanie zmian intensywności THC, które w rozpatrywanym okresie objaśnia ~90% wariancji rocznej powierzchni zlodzonej.
Lipid Enhancement in Oleaginous Nannochloropsis sp. under Nitrate Limitation for Future Bioenergy Production

Microalgae possess high oil content, exhibit rapid growth rates and biomass productivity, and leave a minimal environmental footprint, making them highly attractive for biofuel applications. Consequently, this present study is aimed at evaluating the impact of nitrogen starvation on the marine microalgae Nannochloropsis sp. to enhance lipid accumulation. The microalga culture was grown under an irradiance of 120 μmol photon m-2 s-1, temperature 25 ± 1 °C, continuous air-CO2, and with different concentrations of sodium nitrites over a 14-day cultivation period. From the results, it was found that the growth of the strain decreased under limited nitrogen conditions. After harvesting, the cells in the supernatant were regenerated by cultivating in double concentration of media. The results showed that on the 12th day, the highest lipid content was achieved, reaching 68.0 ± 2.3 wt. % of the dry weight under nitrogen limitation. The composition of the obtained lipid consisted of 18.0 wt. % saturated fatty acids, 72.38 wt. % monounsaturated fatty acids, and 8.95 wt. % polyunsaturated fatty acids. The lipid composition was dominated by monounsaturated oleic acid ( 70.97 ± 4.6 wt.%), saturated palmitic acid ( 13.68 ± 1.0 wt.%), and polyunsaturated linoleic acid ( 8.41 ± 0.4 wt.%). The findings of this study demonstrated that limiting nitrogen availability enhanced lipid accumulation in Nannochloropsis sp. Despite experiencing inhibited growth, this microalga species shows great potential for the large-scale cultivation of lipids and essential fatty acids. These results contribute to understanding the relationship between nitrogen availability and lipid metabolism in microalgae, providing valuable insights for optimizing lipid production in the context of biofuel and biotechnology applications.
Sustaining Asia's groundwater boom: an overview of issues and evidence

This article suggests that Asia’s groundwater socio-ecology is at an impasse. Rapid growth in groundwater irrigation in South Asia and the North China plains during the period 1970‐1995 has been the main driver of the agrarian boom in these regions. India, Pakistan, Bangladesh and China account for the bulk of the world’s use of groundwater in agriculture. On the plus side, groundwater development has provided sustenance to agrarian economies and millions of rural livelihoods. On the downside, it has created chronic problems of resource depletion and quality deterioration. While problems of groundwater depletion, pollution and quality deterioration are indeed serious, so are the consequences of the degradation of the resource for those that have come to precariously depend upon groundwater irrigation. Three problems currently afflict groundwater use: depletion due to overdraft; water logging and salinization; and pollution due to agricultural, industrial and other human activity. The pathology of the decline in groundwater socioecology reflects a remarkably similar pattern across regions. The critical issue for Asia now is: what might be done to sustain and revive these groundwater socio-ecologies vital to the region’s economy? This article reviews a variety of technoinstitutional approaches. However, transposing lessons from the industrialized world uncritically in the Asian context may not work. A more nuanced understanding of the peculiarities of Asia’s groundwater socio-ecology is needed.