Miracle-dz/UniFAR-FTUs huggingface dataset:
Cost effective phase shifted pulse modulation soft switching high frequency inverter for induction heating applications

A cost-effective high-efficiency high-frequency inverter with a PSM (phase-shifted pulse modulation) scheme is proposed for medium power (5–30 kW) induction heating applications. This inverter topology can achieve soft switching commutation in a wide range of power regulation, without an auxiliary active resonant snubber circuit. The high-frequency PSM control scheme presented can provide not only effective power regulation of the proposed inverter using IGBTs, but also soft switching commutation. Theoretical equations for the soft switching operation region are derived from the practical consideration of the gate pulse control strategy, in which the soft switching operation is limited only by the duration of dead time. Through experimental comparison of switching losses in the two-in-one IGBT power module, consideration is given to how much the effect of soft switching can improve actual efficiency. In this discussion, the cost effective high-efficiency inverter circuit topology is realised. The proposed inverter accomplishes soft switching operation over a wide power regulation range. The actual power conversion efficiency reached was 96.7%.
A mapping study on mutation testing for mobile applications

The use of mutation testing for mobile applications (apps for short) is still a challenge. Mobile apps are usually event‐driven and encompass graphical user interfaces (GUIs) and a complex execution environment. Then, they require mutant operators to describe specific apps faults, and the automation of the mutation process phases like execution and analysis of the mutants is not an easy task. To encourage research addressing such challenges, this paper presents results from a mapping study on mutation testing for mobile apps. Following a systematic plan, we found 16 primary studies that were analysed according to three aspects: (i) trends and statistics about the field; (ii) study characteristics such as focus, proposed operators and automated support for the mutation testing phases; and (iii) evaluation aspects. The great majority of studies (98%) have been published in the last 3 years. The most addressed language is Java, and Android is the only operating system considered. Mutant operators of GUI and configuration types are prevalent in a total of 138 operators found. Most studies implement a supporting tool, but few tools support mutant execution and analysis. The evaluation conducted by the studies includes apps mainly from the finance and utility domain. Nevertheless, there is a lack of benchmarks and more rigorous experiments. Future research should address other specific types of faults, languages, and operating systems. They should offer support for mutant execution and analysis, as well as to reduce the mutation testing cost and limitations in the mobile context.
Die Elektrostimulation im Sport und in der Rehabilitation

The known effects of Neuromuscular Electrical Stimulation (NMES) in Sports and Physical Medicine and Rehabilitation are presented in a review of literature. Influences of NMES on strength, endurance, neural adaptations, therapy of edema and pain as well as functional improvements will be focused on. Basics of physiology and histology in human muscle tissues are discussed in depth as well as elementary knowledge of NMES derived from animal studies. The central topic of this review is the influence of NMES on human skeletal muscle regarding histological changes, fiber transformation as well as strength and endurance of muscles involved. We optimized NMES characteristics and then conducted a series of investigations with 9 volunteers that had 30 minutes of NMES applied twice daily for 7 weeks. Muscle biopsies were taken from the vastus lateralis portion of quadriceps femoris muscle on both the stimulated and no stimulated leg before and after the 7 week NMES period. Additionally participants performed isometric strength measurements of quadriceps femoris muscle at different knee joint angles before and after the 7 week stimulation period. Biopsies from the no stimulated side showed no significant changes and may therefore serve as proof for the quality of the biopsies and as a standard for comparison. The increment of type IIa fiber volume was 12.3% and of type IIa fiber number 16%, respectively. Volume density of intermyofibrillar mitochondria increased by 22%. Subsarcolemmal mitochondria remained unchanged which contrasts the effects seen in voluntary non-NMES muscle training. Capillary density was augmented by 14.58%. NMES is an appropriate means of adjusting longstanding muscle dysbalance regarding strength, endurance and improving oxidative metabolism in human skeletal muscle. Daily muscle fiber workload (i.e. number of stimuli per day) was found to be the main determinant of fiber transformation.
A Genetic Approach toFinding a Controller toBackUpaTractor-Trailer Truck

Problems ofcontrol canberecast asrequiring thediscovery ofacomputer program (i.e., control strategy) that takes the state variables ofaproblem asits inputs andproduces the values ofthecontol variables asitsoutput Thispaper describes therecently developed genetic programming paadigm whichgeneticaly breeds apopulaton ofcomputer programs tosolve problems. Genetic gbegins withapopulation ofhundreds orthousands ofrandom computer prgrams andimproves themfm generation to generation using theDarwinian operation offitness proportionate reproduction andthegenetic operation of sexual recombination. Thesexual recombination operation combines parts oftwoparental computer programs to produce newoffspring programs, eachparent being selected proportional tofitness, Thispaper shows, step bystep, howtoapply genetic pro gtothefour dimensional control problem ofbakcing upatctor-trailer mcktoa loading dock. Geneticprogramming breedsan approximately correct computer program (i.e., control stregyYthat successfully pfomstherequired task.
MFHI: Taking Modality-Free Human Identification as Zero-Shot Learning

Human identification is an important topic in event detection, person tracking, and public security. There have been numerous methods proposed for human identification, such as face identification, person re-identification, and gait identification. Typically, existing methods predominantly classify a queried image to a specific identity in an image gallery set (I2I). This is seriously limited for the scenario where only a textual description of the query or an attribute gallery set is available in a wide range of video surveillance applications (A2I or I2A). However, very few efforts have been devoted towards modality-free identification, i.e., identifying a query in a gallery set in a scalable way. In this work, we take an initial attempt, and formulate such a novel Modality-Free Human Identification (named MFHI) task as a generic zero-shot learning model in a scalable way. Meanwhile, it is capable of bridging the visual and semantic modalities by learning a discriminative prototype of each identity. In addition, the semantics-guided spatial attention is enforced on visual modality to obtain interpretable representations with both high global category-level and local attribute-level discrimination. Finally, we design and conduct an extensive group of experiments on two common challenging identification tasks, including face identification and person re-identification, demonstrating that our method outperforms a wide variety of state-of-the-art methods on modality-free human identification.
Dietary rationing of date pomace, tomatoes, grapes and their mixing in the initiator period and its effect on some productive traits and some fasting bacteria in the small intestine of broilers

This study aims to compare the effect of diluting the feed provided to broilers with the remains of canning factories (dates, tomatoes, grapes and their mixture) on some productive traits and some jejunum bacteria. It is located in the field of poultry at the Faculty of Agriculture and Marshlands. In the experiment, 240 unsexed, 1-day-old Ros-308 chicks, average starting weight 42g, were used. Chicks were fed a standard initial diet for 1-7 days. Chicks were randomly distributed to five treatments, 48 ​​chicks for each treatment (16 chicks for each replicate). The experimental diets were used from the beginning of the second week until the end of the third week (14 days) as follows: (T1: control diet diluted with no dilution) (T2: control diet diluted with 20% date pomace) (T3): control diet diluted with 20 % tomato pomace) (T4: control diet diluted with 20 pomace) from 20% grape pomace diet (T5: control diet diluted 20% of a homogeneous and equal mixture of three types of pomace), and after the end of the third week, the serving was increased For everyone until the end of the trial period. At the end of the experiment, there were no significant differences in economic growth and growth results in traits (live weight rate, weight gain rate, feed consumption rate, feed conversion efficiency) with an arithmetic improvement in traits in all production traits. In favor of the two treatments (T5, T3), the result was a significant increase (p≤0.05) in the number of lactobacilli bacteria in the jejunal part of the small intestine with a significant decrease in the total of aerobic bacteria and Escherichia coli.
Design formulas for the H‐plane septum power divider in a rectangular waveguide

Formulas are presented for the optimum design of the H‐plane septum power divider in a rectangular waveguide. Optimum values of the septum offset are given in terms of the frequency and power‐divide ratio. Corresponding values of the septum length and iris width are given in terms of the frequency and septum offset. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 390–393, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10927
The Effects of Reducing Social Media Use on Body Esteem Among Transitional-Aged Youth

Introduction. Social media use (SMU) and body image concerns are highly prevalent in youth. Although several studies have shown that high SMU is crosssectionally associated with lower body esteem, experimental evidence is lacking. This pilot study experimentally evaluated the effects of reducing SMU on body esteem among transitional aged youth (TAY) with emotional distress. Methods. Thirty-eight undergraduate students presenting with elevated symptoms of anxiety/depression were randomly assigned to the intervention (n = 16), where SMU was restricted to 60 minutes/day, or to the control group (n = 22), where SMU was not restricted. SMU was monitored via screen-time trackers in participants’ smartphone submitted daily during baseline (1-week) and intervention (3-week) periods. Baseline and post-intervention measurements were taken to assess appearance and weight esteem as well as symptoms of anxiety and depression as secondary outcomes. Results. A significant group × time interaction emerged indicating that the intervention participants showed a significantly greater increase in appearance esteem over the 4 weeks compared to controls. There was no significant between-group difference on change in weight esteem. A significant group × time interaction emerge on anxiety indicating that intervention participants showed a significantly greater improvement in anxiety over the study period compared to controls. There was no significant between-group difference on change in depressive symptoms. Discussion. Reducing SMU may be a feasible and effective method of improving appearance esteem and reducing anxiety in a high-risk population of TAY with emotional distress; however, more high-quality randomized controlled trials are needed to confirm findings.
Cold Acclimation in Brachypodium Is Accompanied by Changes in Above-Ground Bacterial and Fungal Communities

Shifts in microbiota undoubtedly support host plants faced with abiotic stress, including low temperatures. Cold-resistant perennials prepare for freeze stress during a period of cold acclimation that can be mimicked by transfer from growing conditions to a reduced photoperiod and a temperature of 4 °C for 2–6 days. After cold acclimation, the model cereal, Brachypodium distachyon, was characterized using metagenomics supplemented with amplicon sequencing (16S ribosomal RNA gene fragments and an internal transcribed spacer region). The bacterial and fungal rhizosphere remained largely unchanged from that of non-acclimated plants. However, leaf samples representing bacterial and fungal communities of the endo- and phyllospheres significantly changed. For example, a plant-beneficial bacterium, Streptomyces sp. M2, increased more than 200-fold in relative abundance in cold-acclimated leaves, and this increase correlated with a striking decrease in the abundance of Pseudomonas syringae (from 8% to zero). This change is of consequence to the host, since P. syringae is a ubiquitous ice-nucleating phytopathogen responsible for devastating frost events in crops. We posit that a responsive above-ground bacterial and fungal community interacts with Brachypodium’s low temperature and anti-pathogen signalling networks to help ensure survival in subsequent freeze events, underscoring the importance of inter-kingdom partnerships in the response to cold stress.
X-Ray CT Investigation on Fractal Characteristics of Fine-Grained Tailing Sand in Fujian’s Makeng: Insight into the Mesoscopic Seepage Failure

<jats:p>This work is aimed at revealing the mesophysical process and mechanical behaviors of fine-grained tailing sand during seepage failure. The macroscopic seepage tests combined with posttest X-ray computed tomography (CT) were employed to study the fractal characteristics of mesostructure. Results show that before and after the seepage failure of fine-grained tailing sand, fractal of pore distribution (<jats:inline-formula> <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mtext>pd</mtext> </mrow> </msub> </math> </jats:inline-formula>) and fractal dimension of pore size (<jats:inline-formula> <math xmlns="http://www.w3.org/1998/Math/MathML" id="M2"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mtext>ps</mtext> </mrow> </msub> </math> </jats:inline-formula>) show a relatively obvious positive correlation with porosity. Tailing particles migrate along the seepage direction during the seepage process, resulting in the gradual decrease of <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M3"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mtext>pd</mtext> </mrow> </msub> </math> </jats:inline-formula> and pore distribution area. The <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M4"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mtext>ps</mtext> </mrow> </msub> </math> </jats:inline-formula> reflects the variation characteristics of pore number distribution with different pore sizes. The increase in <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M5"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mtext>ps</mtext> </mrow> </msub> </math> </jats:inline-formula> leads to a decrease in the uniformity of pore size and an increase in the size difference between pores. The mass fractal dimension (<jats:inline-formula> <math xmlns="http://www.w3.org/1998/Math/MathML" id="M6"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mi>m</mi> </mrow> </msub> </math> </jats:inline-formula>) of fine-grained tailing sand samples ranges from 1.6472 to 1.8256. With the increase of <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M7"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mi>m</mi> </mrow> </msub> </math> </jats:inline-formula>, the coefficient of uniformity (<jats:inline-formula> <math xmlns="http://www.w3.org/1998/Math/MathML" id="M8"> <msub> <mrow> <mi>C</mi> </mrow> <mrow> <mi>u</mi> </mrow> </msub> </math> </jats:inline-formula>) of tailing sand tends to increase. The <jats:inline-formula> <math xmlns="http://www.w3. org/1998/Math/MathML" id="M9"> <msub> <mrow> <mi>D</mi> </mrow> <mrow> <mi>m</mi> </mrow> </msub> </math> </jats:inline-formula> method can discern the seepage failure type of fine-grained tailing sand, and it is more accurate than the traditional method. This study provides a reference for the prevention and control of the seepage failure of tailing dam. </jats:p>
High-output-power polarization-insensitive semiconductor optical amplifier

A high-output-power 1550 nm polarization-insensitive semiconductor optical amplifier (SOA) was developed for use as a compact in-line optical amplifier. A very thin tensile-strained bulk structure was used for the active layer and active width-tapered spot-size converters (SSCs) were integrated on both input and output sides. The SOA module exhibited a high saturation output power of +17 dBm together with a low noise figure of 7 dB, large gain of 19 dB, and low polarization sensitivity of 0.2 dB for optical signals of 1550 nm wavelength. For the amplification of optical signals modulated at 10 Gb/s in the nonreturn-to-zero (NRZ) format, a good eye pattern without waveform distortion due to the pattern effect was obtained at an average output power of up to +12 dBm. Additionally, good amplification characteristics were demonstrated for the signal wavelength range corresponding to the C-band.
Direct comparison of a 1 V Josephson arbitrary waveform synthesizer and an ac quantum voltmeter

AC Josephson voltage standards based on pulse-driven Josephson arrays (Josephson arbitrary waveform synthesizer—JAWS) have recently achieved an output voltage of at least 1 V root-mean-square. An ac quantum voltmeter (ac-QVM) based on a 2 V programmable Josephson array has been used to verify the quantization level of the new JAWS by performing a direct comparison in the frequency range from 30 Hz to 2 kHz. The comparison has demonstrated an excellent agreement between the two quantum standards of better than 1 part in 108. Sources for systematic errors have been investigated. The overall uncertainty is found to be better than 1.2 parts in 108 (k = 1) for measurements at a frequency of 250 Hz and 1 V amplitude.
Helicobacter pylori diagnosis and therapy in the era of antimicrobial stewardship

The diagnosis and therapy of Helicobacter pylori infection have undergone major changes based on the use the principles of antimicrobial stewardship and increased availability of susceptibility profiling. H. pylori gastritis now recognized as an infectious disease, as such there is no placebo response allowing outcome to be assessed in relation to the theoretically obtainable cure rate of 100%. The recent recognition of H. pylori as an infectious disease has changed the focus to therapies optimized to reliably achieve high cure rates. Increasing antimicrobial resistance has also led to restriction of clarithromycin, levofloxacin, or metronidazole to susceptibility-based therapies. Covid-19 resulted in the almost universal availability of polymerase chain reaction testing in hospitals which can be repurposed to utilize readily available kits to provide rapid and inexpensive detection of clarithromycin resistance. In the United States, major diagnostic laboratories now offer H. pylori culture and susceptibility testing and American Molecular Laboratories offers next-generation sequencing susceptibility profiling of gastric biopsies or stools for the six commonly used antibiotics without need for endoscopy. Current treatment recommendations include (a) only use therapies that are reliably highly effective locally, (b) always perform a test-of-cure, and (c) use that data to confirm local effectiveness and share the results to inform the community regarding which therapies are effective and which are not. Empiric therapy should be restricted to those proven highly effective locally. The most common choices are 14-day bismuth quadruple therapy and rifabutin triple therapy. Prior guidelines and treatment recommendations should only be used if proven locally highly effective.
Public Attitudes Towards Glass Recycling in Scotland

This paper describes a research project into public attitudes towards glass recycling in Scotland which was undertaken with the objective of identifying ways of increasing the recycling rate. Interviews were carried out of users and non-users at a number of sites in different districts in Scotland with the object of ascertaining the knowledge of glass recycling, motivation and behaviour of both groups. The results gave considerable insights into the types of people that were involved in recycling, their aspirations, motivation, types of trip, mode of transport etc. Significant insights into motivation of non-recyclers were also obtained. Interestingly, it seemed that glass recycling promotional campaigns had made little impact on either group. A number of conclusions were drawn from the study and suggestions about the appropriate targeting of future promotional campaigns put forward.
Comparison of Different Turbulence Models in Open Channels with Smooth-Rough Bedforms

The turbulence models play an important role in all types of computational fluid dynamics based numerical modelling. There is no universal turbulence model which can be applied in all the scenarios. Therefore, if a suitable closure model is used in a simulation work, only then the successful numerical modelling will be achieved. This paper presents the evaluation of three turbulence models in numerical modelling of open channel flows having beds comprising of two parallel strips, one being smooth and the other one being rough. The roughness on the rough side of the channel was created with the help of gravels. The turbulence models tested for their suitability in this case were Reynolds stress model, k-e model and RNG based k-e model. A structured mesh was used in this simulation work. Grid independence test was also conducted in the simulation. The evaluation of the turbulence models was made through the primary velocity contours and secondary velocity vectors over the cross section of the channel. It was revealed that Reynolds stress model simulated the flow behaviour successfully and results obtained through this model matched very closely to that of the experimental data whereas k-e model and RNG based k-e model failed to reproduce the flow field successfully. These results will be helpful for CFD (Computational Fluid Dynamics) modellers in correct selection of the turbulence model in these types of channels.
Association rule for purchase dependence in multi-item inventory

In a multi-item inventory with very large number of items, purchase dependence amongst the items is often observed. In purchase dependence, stock-out of one item may result in non-purchase of another item which is in stock as purchase of the latter is dependent on the purchase of the former item. The primary objective of this research is to investigate whether association rules can be used to depict purchase dependence in retail sale. The investigation has been made with a case by analysing the impact of considering and not considering the association rules in inventory replenishment. Association rule correlates one item set with another item set and such rules can be mined from sale transaction data. Association rules have been mined from sale transaction data collected from the grocery stores. These rules have been considered for inventory replenishment. The impact on profitability for considering and not considering an association rule while replenishing the inventory has been analysed. Findings of the research show that total relevant cost of inventory comes down if the purchase dependence amongst the items depicted by association rule is taken into account while replenishing the inventory. Hence, association rules mined from transaction data can be used to depict purchase dependences which result in loss of profit if not addressed while replenishing inventory.