Miracle-dz/UniFAR-FTUs huggingface dataset:
On the Effect of the Machine Saturation on SSR in Power Systems

A bifurcation analysis is performed to investigate the influence of iron saturation on the complex dynamics of a heavily loaded single-machine-infinitebusbar power system modeling the characteristics of the CHOLLA# 4 generator with respect to the SOWARO station. The system has five mechanical and two electrical modes. The results show that as the compensation level increases, the operating condition loses stability via a supercritical Hopf bifurcation. As a result, the power system oscillates subsynchronously with a small limit-cycle attractor. The instability is due to the interaction of the subsynchronous electrical mode with one of the torsional modes. When the machine saturation is considered, again the system loses stability via a supercritical Hopf bifurcation; however, it occurs at a slightly lower level of compensation, indicating that the influence of machine saturation is slightly destabilizing.
A comparison among three-level ZVS-PWM isolated DC-to-DC converters

Considering that the designer of high-frequency high-input voltage power supplies does not always find semiconductors capable of sustaining the desired voltage, several topologies have been proposed based on multilevel converters in which only a fraction of the voltage is applied to each switch. This paper compares five different three-level ZVS PWM isolated DC-to-DC converter topologies. Basics concepts of each topology are shown along with their advantages and drawbacks. A comparison involving the size of reactive elements employed, stress of the semiconductors devices, number of semiconductors devices employed, simplicity and efficiency is made and summarised. Experimental results are included, in order to verify the theoretical analysis.
Comparative effectiveness of pathological techniques to improve lymph node yield from colorectal cancer specimens: a systematic review and network meta‐analysis

A number of randomised controlled trials (RCT) have compared different techniques to improve lymph node yield (LNY) in colorectal cancer specimens, but data on comparative effectiveness are sparse. Our aim was to compare the relative effectiveness and rank all available techniques. A systematic search of Embase, Cochrane, PubMed and Scopus was performed for randomised trials. Pairwise was meta‐analysis performed if more than two homogeneous studies were available for each comparison. Network meta‐analysis was used to rank and compare all available techniques. Fifteen studies fulfilled the inclusion criteria. Techniques that were compared included methylene blue (MB), glacial acetic acid, ethanol, distilled water and formaldehyde (GEWF), Carnoy solution (CS), patent blue (PB), formalin, fat clearing (FC) and their combinations. The overall quality of studies was found to be fair. In pairwise meta‐analysis MB had a higher lymph node yield weighted mean difference (WMD) = 13.67 (4.83–22.51), P < 0.01, lower number of specimens with fewer than 12 lymph nodes log odds ratio = –1.88 (–2.8, –0.91), P < 0.01 and higher LNY in patients with prior chemoradiotherapy [WMD = 9.11 (3.15, 15.08), P = 0.02] compared to formalin. Evaluation of the network plot revealed a well‐connected network. In network meta‐analysis MBFC had a higher LNY with [mean difference (MD) 13 and 95% credible interval (CrI) = 2.09–23.91] compared to formalin. MBFC probability of being the best technique for LNY was 91.4%. In network meta‐analysis MB did not have a statistically significant difference when compared to formalin. MBFCS seems to be the most effective technique for LNY. Further studies are required to make safe conclusions for outcomes such positive lymph nodes and upstaging.
DNN-Based ADNMPC of an Industrial Pickling Cold-Rolled Titanium Process via Field Enhancement Heat Exchange

The dynamic neural network based adaptive direct nonlinear model predictive control is designed to control an industrial microwave heating pickling cold-rolled titanium process. The identifier of the direct adaptive nonlinear model identification and the controller of the adaptive nonlinear model predictive control are designed based on series-parallel dynamic neural network training by RLS algorithm with variable incremental factor, gain, and forgetting factor. These identifier and controller are used to constitute intelligent controller for adjusting the temperature of microwave heating acid. The correctness of the controller structure, the convergence, and feasibility of the control algorithms is tested by system simulation. For a given point tracking, model mismatch simulation results show that the controller can be implemented on the system to track and overcome the mismatch system model. The control model can be achieved to track on pickling solution concentration and temperature of a given reference and overcome the disturbance.
COVID-19 Severity among Women of Reproductive Age with Symptomatic Laboratory-Confirmed SARS-CoV-2 by Pregnancy Status – United States, Jan 1, 2020 – Dec 25, 2021

Abstract Background Information on the severity of COVID-19 attributable to the Delta variant in the United States among pregnant people is limited. We assessed the risk for severe COVID-19 by pregnancy status in the period of Delta variant predominance compared with the pre-Delta period. Methods Laboratory-confirmed SARS-CoV-2 infections among symptomatic women of reproductive age (WRA) were assessed. We calculated adjusted risk ratios for severe disease including intensive care unit (ICU) admission, receipt of invasive ventilation or extracorporeal membrane oxygenation (ECMO), and death comparing the pre-Delta period (January 1, 2020 – June 26, 2021) and the Delta period (June 27, 2021 – December 25, 2021) for pregnant and nonpregnant WRA. Results Compared with the pre-Delta period, the risk of ICU admission during the Delta period was 41% higher (adjusted risk ratio [aRR] 1.41; 95% CI, 1.17-1.69) for pregnant WRA and 9% higher (aRR 1.09; 95% CI, 1.00-1.18) for nonpregnant WRA. The risk of invasive ventilation or ECMO was higher for pregnant (aRR 1.83; 95% CI, 1.26-2.65) and nonpregnant WRA (aRR 1.34; 95% CI, 1.17-1.54) in the Delta period. During the Delta period, the risk of death was 3.33 (95% CI, 2.48-4.46) times the risk in the pre-Delta period among pregnant WRA and 1.62 (95% CI, 1.49-1.77) among nonpregnant WRA. Conclusions Compared with the pre-Delta period, pregnant and nonpregnant WRA were at increased risk for severe COVID-19 in the Delta period.
MRI Staging in Locally Advanced Vulvar Cancer: From Anatomy to Clinico-Radiological Findings. A Multidisciplinary VulCan Team Point of View

MR imaging provides excellent spatial and contrast resolution to stage locally advanced vulvar cancer (LAVC) for tumor and nodal evaluation in order to facilitate the planning of treatment. Although there are no standard indications for how to estimate the clinical stage of International Federation of Gynecology and Obstetrics at diagnosis, MR imaging can depict the tumor and its extension to the vulvar region and adjacent organs, such as the vagina, urethra, and anus. Optimizing the MR imaging protocol and technique is fundamental for correct staging. The aim of this overview was to focus on the role of MR imaging in LAVC staging. We define vulvar anatomy and corresponding MR imaging findings, MR imaging protocol, and technique. Moreover, we describe the MR imaging findings of LAVC with example cases stage by stage. Key imaging findings based on signal intensity, diffusion restriction, and enhancement are portrayed to correctly identify and stage vulvar cancer. A structured report for LAVC staging is reported in order to give all necessary information to the clinicians and to facilitate MR imaging comprehension.
Two-Layer Slot Coating: Study of Die Geometry and Interfacial Region

The two-layer slot coating method is commonly used in industry to apply multiple layers of miscible liquids onto a moving substrate. Previous experimental work using a standard flat die face geometry has shown that tiny recirculations exist within the coating bead. Recirculations near the interfacial region may cause convective mixing of the two liquid layers and thus, defects in the final coated material. Previous studies on the interfacial region between the two miscible liquids have assumed that diffusional and convective mixing of the two layers can be ignored and that an ' interface' of zero surface tension exists between the two layers. This work attempts to show that observable mixing does occur between layers of miscible liquid and that the convective mixing can be minimized by changing the geometry of the die face between the two slots. Flow visualizations using particles and two different coloured dyes were performed on the standard square die face geometry. Result show that vortices exist in the coating bead under all the test conditions, either at the downstream shoulder of the die or in the interfacial region near upstream feed slot. The presence of the vortices at these positions, as well as the position of the separation line, was partially determined by the ratio of top layer viscosity to bottom layer viscosity, among other factors . Visualizations were also done using various geometries for the centre block: knife, groove, and bullet referring to the shape of the different blocks. The knife geometry decreased the performance of the two slot coater, causing problems such as oscillations of the upstream meniscus and invasions of the top layer into the bottom layer feed slot. The performance of the groove geometry was very similar to the standard square geometry
Stress and First Responders: The Need for a Multidimensional Approach to Stress Management

Abstract First responders are exposed to traumatic, nontraumatic and organisational stressors that conspire to create stress, potentially leading to emotional issues and/or physical or psychological illness. In addition to individual consequences, stress also takes a toll on the function of emergency departments and their communities. Fortunately, police, fire and ambulance agencies have initiated various preventive measures in an effort to mitigate the ill-effects of continued exposure to stressors by their personnel. However, combating stress effectively requires more than offering individual coping skills and access to counseling for first responders. To best preserve the wellbeing of their workers, emergency service administrators must recognise the impact of stress from a variety of sources, including organisational factors, and approach stress prevention in a multi-staged and comprehensive manner, paying special attention to primary stage interventions. When agencies embrace and act on a broad, holistic view of stress management that includes instituting cultural and organisational changes to support stress prevention, significant improvements in the stress level and health of first responders will be possible.
Cancer in thyroglossal duct cysts

Thyroglossal duct cysts (TDC) account for 7% of midline neck swellings. TDC carcinoma (TDCC) is rare, reported in 1% of all TDCs. We aimed to describe the incidence of TDCC, the accuracy of fine needle aspiration cytology (FNAC), and to identify suspicious, predictive ultrasound (USG) features.
The Original Carbon-Copper Compound as a New Source of Electric Power

The original method of electrochemical sedimentation of ultra-dispersed graphitefrom the colloid mixture on the polystalline copper cathode is designed.An interfacetransition region of several microns thickness is formed. Formation of electric potentialbetween the copper substrate and the graphite layer is observed. A mechanism of this effect is studied using the computer quantum mechanics simulation. A high level of precision cannot be maintained over large areas, so that large-area devices are currently difficult to fabricate. By contrast, we have noted that the dielectric elastomer actuators themselves set the gap, so that the gap can be formed in only a single step, film deposition on a flat surface. By using monolithic polymer substrates, one should be able to make large-area arrays of dielectric elastomer actuators.
Optimization of a-Si:H-based three-terminal three-color detectors

Three-terminal three-color n-SiC:H/a-Si:H-based TCO/PINIP/TCO/PIN/metal detectors are presented. Assemblies having different surface roughness of transparent conducting oxide (TCO) layers are compared with regard to the external steady-state characteristics and transient behavior. The roughness of the sputtered TCO surface can be modified by an etching treatment. With the selection of smooth or textured TCO surfaces, the wave propagation of light within the device is controlled. This design technique can be exploited to optimize the color separation and improve the reproducibility of spectral responsivities in the assemblies. The examined assemblies exhibit very selective spectral responsivity for the fundamental chromatic components (red-green-blue) and a linear photocurrent-generation rate relationship over more than five orders of magnitude of illumination intensity. Since the color detection of blue and green light is performed in the PINIP structure by bias switching, the transient current response of the PINIP structures is investigated. A reciprocal relationship between the delay time and illumination intensity is established. An optimum operation region for the switching voltages is determined with regard to the quality of color separation, dynamic range, and transient behavior.
Study of deployment of “low code no code” applications toward improving digitization of supply chain management

Purpose The purpose of this study is to understand the concept of “Low Code No Code” applications and study its scope of application for web designing, rapid application development (RAD) and supply chain digitization (SCD). Design/methodology/approach A qualitative exploratory study was conducted for this exploratory study. A semi-structured open-ended questionnaire was prepared by the authors. Based on the questionnaire in-depth interviews were conducted with subject matter experts having more than 10 years of experience in the domain of supply chain management and digitization. The study questionnaire focused on the current reach and future potential of “Low Code No Code” platforms. A total of 20 responses were collected from experts as post this point thematic saturation was reached. A non-probabilistic convenience sampling was applied to identify the experts The data was content analyzed for themes. Findings The major findings that emerged from the study was that “Low Code No Code” platforms applications could be used across end-to-end SCD. The study also revealed that RAD through “Low Code No Code” platforms could reduce organizations dependency on coders. In the case of procurement, “Low Code No Code” applications could improve vendor and supplier management by streamlining processes. The cost-effective and easy-to-maintain “Low Code No Code” application development could help Medium and Small-Scale Enterprises level the playing field against large organizations. The lack of adoption strategy and low perceived usefulness was identified as major barriers to the adoption of “Low Code No Code” applications by organizations. Research limitations/implications “Low Code No Code” application-based automation would enable better utilization of organizational supply chain (SC) resources and capabilities. This would improve the sustainability performance of the firm. Furthermore, it would also enable the provision of SC services at a lower cost level, thus benefiting customers. Practical implications “Low Code No Code” application-based automation would help organizations to reduce the dependency on coders and Information Technology developers SCD. This could also allow SC managers to make more apps to be built in less time without the need of complex coding. This could potentially reduce app development costs toward digitizing SCs. Originality/value To the best of the authors’ knowledge, this was one of the very first studies regarding how “Low Code No Code” applications could revolutionize the SC using these app development capabilities. This study also provided an extensive study of Diffusion of Innovations and Technological Organizational Theory frameworks for in the context of “Low Code No Code” technology adoption.
Assessing the Effect of Infrastructure and Service Attributes on Realization of Motorways of the Sea

Motorways of the sea (MoS) is regarded as the integrated modal transportation supply chain that offers a realistic prospect for a substantial modal shift from road. It is also considered to contribute to improving competitiveness, reducing environmental damage, and enhancing regional cohesion. Research on MoS services has only recently started to develop. This paper proposes a probabilistic methodological framework based on Bayesian networks to identify and quantify the effect of different attributes on transportation supply chains that could foster the shift from traditional intermodal services to an integrated MoS process. Aspects such as operational characteristics of ports, hinterland operations, security, and administrative and customs procedures, as well as maritime and rail services, are jointly assessed. The proposed methodology identifies and prioritizes those attributes that most likely will lead to improving the operational state of an intermodal supply chain, thus rendering it an MoS chain. This could be a useful tool for decision makers to obtain the necessary information on a macro scale as they decide whether to proceed with needed investments for those intermodal links selected as potential MoS. Therefore, the model can be integrated into a decision-making framework as a tool by which necessary investments or service improvements or both could be identified.
An Intelligent Trust Cloud Management Method for Secure Clustering in 5G Enabled Internet of Medical Things

5G edge computing enabled Internet of Medical Things (IoMT) is an efficient technology to provide decentralized medical services while device-to-device (D2D) communication is a promising paradigm for future 5G networks. To assure secure and reliable communication in 5G edge computing and D2D enabled IoMT systems, this article presents an intelligent trust cloud management method. First, an active training mechanism is proposed to construct the standard trust clouds. Second, individual trust clouds of the IoMT devices can be established through fuzzy trust inferring and recommending. Third, a trust classification scheme is proposed to determine whether an IoMT device is malicious. Finally, a trust cloud update mechanism is presented to make the proposed trust management method adaptive and intelligent under an open wireless medium. Simulation results demonstrate that the proposed method can effectively address the trust uncertainty issue and improve the detection accuracy of malicious devices.
Silicon microphone based on surface and bulk micromachining

In this paper a silicon microphone which can be fabricated using standard semiconductor processes is presented. The acoustic-electrical transducer is based on the capacitance change of a movable 400 nm thin poly-silicon membrane with different diameters (800-1200 µm). A source follower was integrated to transform the impedance. The complete chip is 2×2×0.5 mm3 in size. The sensitivity achieved is in the range of 0.4 to 3.2 mV Pa-1.
Influence of Gypsum-Containing Waste on Ammonia Binding in Animal Waste Composting

The possibility of using gypsum-containing waste–citrogypsum, which is a by-product of the chemical biosynthesis of citric acid, was considered as an additive for composting poultry manure from poultry farms that practice litter-free poultry keeping. The research was carried out on an experimental batch of 1500 tons. The production of the batch was carried out by mixing citrogypsum with a moisture content of 30% and litterless chicken manure with a moisture content of no more than 80% in a ratio of 1:2. The resulting mixture was placed on an open landfill in piles 3 m wide, 1 m high and 400 m long and was mixed twice with a compost turner. Further processing consisted of mixing the mass once every seven days. The controlled parameters were changes in humidity, temperature, pH and nitrogen content during composting. In the course of the experiment, it was found that the introduction of citrogypsum into the composition of the compost helps to optimize the moisture, temperature and pH of the mixture, and a decrease in ammonia emission to 87% was recorded, with an increase in nitrogen content of 2.4 times compared to the initial value. It was concluded that citrogypsum can be used in composting poultry waste to reduce volatilization of ammonia and preserve nutrients.
Glucocorticoid receptor antagonist alters corticosterone and receptor sensitive mRNAs in the hypoxic neonatal rat.

Hypoxia, a common stressor with preterm birth, increases morbidity and mortality associated with prematurity. Glucocorticoids (GC) are administered to the preterm infant to improve oxygenation; prolonged use of GCs remains controversial. We evaluated a selective glucocorticoid receptor (GR) antagonist (CORT113176) in our neonatal rat model of human prematurity to assess how fasting and hypoxia-induced increases in neonatal corticosterone affects endogenous hormones and endocrine pancreas function. Neonatal rat pups at postnatal day (PD) 2, PD8, and PD15 were pretreated with CORT113176 and, after 60 min of separation and fasting, exposed to hypoxia (8% O2) or control (normoxia) for 30 or 60 minutes while fasting was continued. Plasma corticosterone, ACTH, glucose, and insulin were measured and fasting HOMA-IR (index of insulin resistance) calculated. Glucocorticoid and insulin receptor sensitive gene mRNAs were analyzed in liver, muscle, and adipose to evaluate target tissue biomarkers. CORT113176 pretreatment augmented baseline and hypoxia-induced increases in corticosterone and attenuated hypoxia-induced increases in insulin resistance at PD2. Normoxic and hypoxic stress increased the hepatic GR sensitive gene mRNAs, Gilz and Per1; this was eliminated by pretreatment with CORT113176. CORT113176 pretreatment decreased baseline insulin receptor sensitive gene mRNAs Akt2, Irs1, Pik3r1, and Srebp1c at PD2. We show that CORT113176 variably augments the stress-induced increases in corticosterone concentrations (attenuation of negative feedback) and that GR is critical for hepatic responses to stress in the hypoxic neonate. We also propose that measurement of Gilz and Per1 mRNA expression may be useful to evaluate the effectiveness of GR antagonism.
Antenna miniaturization with ferrite ferroelectric composites

A magneto‐dielectric composite with nickel zinc ferrite and bismuth strontium titanate has been synthesized and characterized in terms of permeability and permittivity and used as substrates for antenna miniaturization. The objective was to achieve high‐ and equal permeability and permittivity for antenna miniaturization and impedance matching to free‐space. Studies on antennas operating at 100 MHz indicate low‐losses and a miniaturization factor of 7–10, in agreement with theory. But a 1.3 GHz microstrip antenna on the composite substrate, however, shows high losses and miniaturization by a factor of 3. Theoretical estimates on antenna properties are compared with data. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3154–3157, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23939