Miracle-dz/UniFAR-FTUs huggingface dataset:
Aircraft Multifunction Display and Control Systems: A New Quantitative Human Factors Design Method for Organizing Functions and Display Contents.

Abstract : The objectives of this study were to review the current state of aircraft multifunction display and control system (MPDCS) design methods and develop a quantitative method of designing MFDCSs that incorporate important human factors issues. Reports in the literature indicate that MFDCS design can influence flight performance. However, current design methods rely primarily on the designer's intuition and experience. MFDCSs in aircraft cockpits use computer-generated graphics and symbology that have integrated and largely replaced the myriad discrete electromechanical flight instruments found in older aircraft. While much is known about the physical and visual properties of MFDCSs, less is known about which human factors are important for their design and use. MFDCSs may result in greater workload if the distribution of virtual instruments, graphical and text data, and control functions in an n-dimensional structure of display pages places excessive cognitive and psychomotor demands on pilots during either routine or emergency situations. A quantitative method was developed, involving the derivation of a weighted sum of separate cost functions, each of which incorporates the effects of an arbitrary number of human factors and MFDCS design guidelines. The method models, using a high level of abstraction, a pilot's search for specific information or functions among alternative hierarchies of MFDCS display pages. An annealing algorithm was proposed as an effective numerical method for finding the display page hierarchy that minimizes the composite cost function.
Management Science Improves Fast-Food Operations

Many small businesses face the problem of scheduling employees with differing work skills and work-time availabilities and preferences to satisfy manpower requirements that fluctuate from hour to hour and day to day. An owner and operator of several fast-food restaurants replaced the time-consuming, nonproductive task of manually scheduling employees with a cost-effective, microcomputer-based employee scheduling system. The system standardized the scheduling process across his restaurants and resulted in higher quality schedules from both the management and employee viewpoints.
A Study on Smart card-based Security Mechanisms of upgrades Smart Meter SW for secure deployment in Smart Grid

Latest in Smart Grid projects are emerging as the biggest issue that smart meter should meet the security goal and the SW upgrade for compliance with future standard. However, unlike regular equipment, Smart meters should be designed in accordance with the regulation of legal metrology instrument in order to establish a fair trade-based business and unauthorized changes, it is not allowed and it is strictly limited by law. Therefore, this paper propose a new scheme of certification regarding type approval and verification for legal smart meter as analyzing the requirements of a smart meter regarding upgrade and security. This analysis shows that the proposed scheme comply with the regulation and the specification of smart meter by applying it to smart meter with smart card
Quality of 3D Models Generated by SFM Technology

Abstract Using various types of automation in digital photogrammetry is associated with questions such as the accuracy of a 3D model generated on various types of surfaces and textures, the financial costs of the equipment needed, and also the time costs of the processing. This topic deals with the actual technology of computer vision, which allows the automated exterior orientation of images, camera calibration, and the generation of 3D models directly from images of the object itself, based on the automatic detection of significant points. Detailed testing is done using the Agisoft PhotoScan system, and the camera configuration is solved with respect to the accuracy of the 3D model generated and the time consumption of the calculations for the different types of textures and the different settings for the processing.
Quantitative Deformation And Vibration Analysis By Means Of A New 3D-Interferometer

A 3D-interferometer equipped with four different directions of object illumination has been developed to analyze quantitatively in a first step the object surface shape and the interferometer geometry used as well as in a second step the displacement or vibration amplitude fields of mechanically loaded elements. The combination of the interference phase evaluation by digital image processing leads to a justifiable calculation time and a higher accuracy of the measuring results. First experience are described by example of synthetic interferograms concerning the determination of the object shape and the measuring accuracy of a definite rigid body displacement. Besides that, the measurement of the vibration amplitude field of an ultrasonic transducer is outlined.
Variability of little blue penguin (Eudyptula minor) diving behaviour across New Zealand

Foraging strategies of penguin species can vary according to the quality of the marine environment, and this influences their abundance and breeding success. Little blue penguins (Eudyptula minor) are considered a candidate species for assessing near-shore marine productivity due to their usually limited foraging ranges and reliance on local resources, particularly while rearing chicks. Understanding the variability of little blue penguins diving behaviours will inform whether the species can be used as an environmental monitor. This research investigates diving behaviours and feather stable isotope values (as indicators of diet) of little blue penguins from Motuara Island, Marlborough Sounds, New Zealand, and compares them with little blue penguins from three other locations distributed across the country. The diving behaviour of little blue penguins, including dive depth and duration, were highly variable indicating that little blue penguins are an environmentally adaptable species. Because of the highly variable marine environments they inhabit, the use of little blue penguins as local monitors of New Zealand’s changing marine environment requires an understanding of area and population specific diving and foraging behaviour.
Lactoferrin as potential preventative and treatment for COVID-19

The novel coronavirus 2019 (COVID-19) pandemic is rapidly advancing across the globe despite public and personal health measures. Antivirals and nutritional supplements have been proposed as potentially useful against SARS-CoV-2 (virus that causes COVID-19), but few have been clinically established. Lactoferrin (Lf) is a naturally occurring and non-toxic glycoprotein that is orally available as a nutritional supplement and has established in vitro anti-viral efficacy against a wide range of virus including SARS-CoV, a closely related corona virus to SARS-CoV-2 (virus that causes COVID-19). Furthermore, Lf possesses unique immunomodulatory and anti-inflammatory effects that maybe especially relevant to the pathophysiology of severe COVID-19 cases. We review the underlying biological mechanisms of Lf as antiviral and immune regulator, and propose its unique potential as preventative and adjunct treatment for COVID-19. We hope that further research and development of Lf nutritional supplementation would establish its role for COVID-19.
Investigation of the Centrifugal Force Effect to a Revolving Vane (RV) Machine

The Revolving Vane (RV) machine is unique because the cylinder rotates together with the rotor at their respective axis. This causes various unique behaviors that are not previously observed in the conventional rotary machines. In this paper, the effects of the centrifugal force to the behavior of the machine are investigated. It is found that the centrifugal force affects the average output torque through the shaft bearing load and friction loss. Interestingly, if the center of mass is set properly, the centrifugal force can help to offset the pressure force acting at the shaft. This helps to reduce the bearing load and increases the mechanical efficiency of the machine. The finding can be used to optimize the RV machine design.
Simulation on an optimal combustion control strategy for 3-D temperature distributions in tangentially pc-fired utility boiler furnaces

The control of 3-D temperature distribution in a utility boiler furnace is essential for the safe, economic and clean operation of pcfired furnace with multi-burner system. The development of the visualization of 3-D temperature distributions in pc-fired furnaces makes it possible for a new combustion control strategy directly with the fumacs temperature as its goal to improve the control quality for the combustion processes. Studied in this paper is such a new strategy that the whole furnace is divided into several parts in the vertical direction, and the average temperature and its bias from the center in every cross section can be extracted from the visualization results of the 3-D temperature distributions. In the simulation stage, a computational fluid dynamics (CFD) code served to calculate the 3-D temperature distributions in a furnace, then a linear model was set up to relate the features of the temperature distributions with the input of the combustion processes, such as the flow rates of fuel and air fed into the furnaces through all the burners. The adaptive genetic algorithm was adopted to find the optimal combination of the whole input parameters which ensure to form an optimal 3-D temperature field in the furnace desired for the operation of boiler. Simulation results showed that the strategy could soon find the factors making the temperature distribution apart from the optimal state and give correct adjusting suggestions.
Interpretation of neural network technologies for prediction and management of risk factors

Abstract The analysis carried out, as well as the systematisation and generalisation of flight safety problems, has allowed us to propose a model for a flight safety management system and to define directions for priority research. To solve flight safety problems, it is suggested to use the integrated methods of flight safety management on the basis of basic and partial criteria totality, where it is possible to take into account simultaneously the probabilistic indices of the system and informative indices, which are connected by means of using neural networks.
Recycling of domestic wastewater treated by vertical-flow wetlands for watering of vegetables

The aim was to assess if domestic wastewater treated by different vertical-flow wetlands can be successfully recycled to water commercially grown crops. The growth of both Sweet Pepper (California Wonder; cultivar of Capsicum annuum Linnaeus Grossum Group) and Chilli (De Cayenne; Capsicum annuum (Linnaeus) Longum Group 'De Cayenne') fed with different treated and untreated wastewater types were assessed. The overall growth development of Sweet Peppers was poor due to the high concentrations of nutrients and trace minerals. In contrast, chilies did reasonably well but the growth of foliage was excessive and the harvest was delayed. High yields were associated with tap water and an organic growth medium, and a wetland with a high aggregate size, leaving sufficient space for biomass. Low fruit numbers correlated well with inorganic growth media and irrigation water contaminated by hydrocarbons. Findings indicate that nutrient concentrations supplied to the Chillies by a combination of compost and treated waste water are usually too high to produce a good harvest. However, as the compost is depleted of nutrients after about 8 months, the harvest increased for pots that received pre-treated wastewater. Findings will lead to a better understanding of the effects of different wetland treatment processes.
An ethnography exploring the quality of life of people living with schizophrenia in Zimbabwe: Implications for health service policy and practice

Background Schizophrenia is a complex and severe mental disorder affecting more than 20 million people worldwide. Although understanding peoples’ experiences of living with an illness is core to assessment, planning and delivering culture specific health care, little is known about the experiences of people living with schizophrenia in resource-poor countries. This article reports on a study that explored the everyday lives of eighteen people living with schizophrenia in Zimbabwe and its impact on their quality of life. Methods This focused ethnography was conducted over a three-month period in 2015. Data were collected using semi-structured interviews, non-participant observational fieldwork, and the short form of the World Health Organization Quality of Life questionnaire. Interview data were digitally recorded, transcribed and translated from Shona (local language) to English. Descriptive statistics and non-parametric tests were used to analyse questionnaire data. Qualitative data were analysed thematically using an established framework. Results Survey data indicate internal consistency in the psychological and social relationships domains and poor quality of life for people aged 20-40. The major factors related to quality of life were: age, gender, family dislocation: living with stigma and discrimination; and limited and variable access to treatment and support. Obtaining and paying for antipsychotic medications were challenging and female participants recounted experiencing gender-based stigma. Conclusions Findings from our study suggest that age, gender, family dislocation, stigma, discrimination, and variable limited access to affordable medications and support undermine quality of life by disrupting participants’ ability to function in socially acceptable ways, their sense of belonging and self-worth, and family, work and social relations. Strengthening access to mental health services, addressing the affordability and availability of medications and initiatives to alleviate stigma and promote a sense of belonging, especially for younger adults and women should be a priority for government and health service providers. Further research on managing mental health issues such as schizophrenia in Zimbabwe, should focus on initiatives to strengthen quality of life.
Minimizing electric bearing currents in ASD systems

During recent years, an increase in bearing failures has been seen in ASD-fed electric motors, as well as in gearboxes, and other connected machinery, caused by electric current flow through such bearings. The theories presented in this paper focus on bearing currents in ASDs of the voltage source pulse width modulated (PWM) type, for use with AC induction motors, although the concepts are applicable to various types AC and DC drive systems.
A minimized broadband ferrite antenna for mobile handset applications

This article presents a compact broadband antenna made of Co2Y hexagonal ferrite (Ba2Co0.5Zn1.5Fe12O22) for GSM/DCS/PCS/UMTS. The proposed antenna has a minimized volume of 25 × 10 × 2 mm3 using a ferrite substrate with εr' = 12.5 (tan δε = 0.005) and μr' = 4 (tan δμ = 0.15) at 850 MHz. Additionally, a T‐monopole and capacitively coupled strip are used for bandwidth enhancement. The antenna performance is characterized in terms of the reflection coefficient, gain, and radiation pattern. The measured fractional bandwidth at a voltage standing wave ratio ≤3 is 95.7% (823–2178 MHz), and the measured peak gain at the operating frequency bands is −6.67–4.25 dBi. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2279–2282, 2014
Stability in high-output-voltage push-pull current-fed converters

The relationship between the magnetizing inductances of a transformer and of a choke coil in high-voltage power supplies is studied. The analysis defines the conditions for high switching frequency and stable operation of high-voltage power supplies without power loss increases. This approach is confirmed by the implementation of a high-voltage power supply operating at 200 kHz with an efficiency of 86%. >
Assessment Of Knowledge, Attitude And Practice Of Mothers On The Effects Of Sunlight Exposure And Its Associated Factors Among Infants Found In Debre Tabor Town, North Central Ethiopia, 2018

Background: Early morning sunlight exposure for infants was a good practice to prevent rickets and alleviate the problem of vitamin D efficiency. Rickets is a major public health problem in many countries of the world. In many rich industrialized countries, the prevalence of rickets in the general population diminished after the introduction of dietary supplementation. But the most cost-effective way of getting vitamin D is simply from sunlight exposure rather than vitamin-D supplementation and advanced treatment. The main objective of this study is to assess the knowledge, attitude and practice of mothers on the effects of sunlight exposure and its associated factors among infants found in Debre Tabor town, North central Ethiopia, 2018. Methods: community-based cross-sectional study had been conducted among 105 mothers with infants in Debre Tabor city, South Gondar Zone, Amhara, Northcentral Ethiopia, 2018 from October 30 -/2018-January 1/2019. To select study participants simple random sampling techniques was employed. Data was entered into Epi info version 7.2. 0.1, and exported to SPSS window version 20 for analysis. Binary and Multivariable logistic regression was used to see the association between dependent and independent variables. Odds ratio with 95% confidence interval was computed. P-value < 0.05 was used to declare association. Results: The overall knowledge, practice and attitude of the mothers about sunlight exposure were 61.14%, 59.44%, and 61% respectively, regarding factors associated with knowledge, practice and attitude of mothers about sunlight exposure were highly influenced by good time exposure for sunlight exposure ,mother who exposed their infants to sunlight exposure sometimes were 3.2 times less for acquiring knowledge than mothers who expose their infants who warm daily [AOR: *3.2(1.02-6.4)], mothers who had an occupation of daily laborer were 3.4 times less likely to practice sunlight exposure to their infants governmental workers [AOR: *3.4(0.8 2.8)] and. mothers who do not believe about the good effect of sunlight exposure had 3.3 times negative attitude towards about sunlight exposure than who thinks well [AOR; **3.3(1.5-8.9)] were significantly associated with knowledge ,practice and attitude of mothers about sunlight exposure and the total attitude of the mother’s sunlight exposure was lower than knowledge and practice . Hence; Based on the result the concerned body and health care providers should create awareness about the effect of sunlight exposure through health education.
Analysis of Minimum Decoding Complexity Quasi-Orthogonal Space-Time Block Code for 6 Transmit Antennas

Previous work on quasi-orthogonal space-time block code (QO-STBC) has been designed to achieve full rate and full diversity gain for four antennas. However this conventional QO-STBC scheme decoding is complex. For achieving more diversity gains, an extended QO-STBC scheme is provided to achieve full diversity with one rate for six antennas. Furthermore, by transforming the detection matrix to an orthogonal one, this novel scheme can achieve a simple linear decoding. Therefore it proposes an extended minimum decoding complexity QO-STBC (MDC-QO-STBC) for six antennas. Due to eliminate the interference from different equivalent channels, the novel extended MDC-QO-STBC scheme improves transmission reliability and linear decoding complex compared with the conventional QO-STBC scheme. At last extensive simulation results are presented to prove the theoretical analysis.
Modelling the land mobile satellite channel: a review

The use of satellite systems in the implementation of third-generation mobile communication systems obviously involves a propagation environment for the signal different from that in the conventional terrestrial first- and second-generation systems. The propagation conditions and phenomena met with are embraced by the expression 'land mobile satellite (LMS) channel'. This paper reviews the studies of the LMS channel reported in the literature. The various models are classified and compared in such a way that their similarities and differences are apparent.
Set-Up and Application of Thermal Fatigue Knowledge Ontology

In order to reuse and share thermal fatigue knowledge, the thermal fatigue knowledge ontology is exploited. The basic ontology relationship and characteristics are analyzed and the concept classification and axiom are devised. With the help of Protege3.1. 1 software, the thermal fatigue knowledge ontology comes into being. Based on the crack axiom, the intelligent matching of thermal fatigue crack states of super-hard cutting tools is accomplished.
Schlaganfallprävention durch Lifestyle-Modifikation

Changes of lifestyle have a substantial effect on stroke prevention, especially in high-risk patients. Maintaining a healthier lifestyle can have greater effects than most pharmacological therapies of cardiovascular prevention. For example, increasing the amount of physical activity, adopting a healthy diet, limiting alcohol consumption and quitting smoking are associated with a 70 % decrease in stroke risk. Despite the abundance of observational data and meta-analyses assessing the association of different lifestyle changes and stroke risk, the literature frequently lacks evidence from randomized controlled clinical trial. This article will provide an overview of various forms of lifestyle changes and summarize their potential to modify the risk of stroke.
Modeling of Oil Retention in the Suction Line and Evaporator of Air-Conditioning Systems

This paper presents a general method for computing the oil retained in the suction line and evaporator of an air-conditioning system. For the suction line, a new semi-empirical correlation for the interfacial shear stress friction factor is presented. The correlation agrees closely with experimental results for conventional refrigerants and CO2 and extends to and merges with previous correlations available in the literature. The correlated friction factor is within 26% relative error as compared to experimental data. In the evaporator, oil retention volume was computed by using the Premoli et al. (1971) void fraction model and applying heat transfer and pressure drop correlations for refrigerant/oil mixtures. As a result, oil retention was predicted within 21% average relative error.
Investigation of the antimicrobial activity of polyphenol-enriched extracts against probiotic lactic acid bacteria

The antimicrobial activity of polyphenol-enriched extracts from industrial plant by-products (strawberry and bilberry press residues and distilled rose petals) against probiotic lactic acid bacteria (Lactobacillus delbrueckii subsp. bulgaricus S10 and S19; Lactobacillus rhamnosus YW and S25; Lactobacillus gasseri S20; Streptococcus thermophilus S13 and S32) was investigated. The minimum inhibitory concentration (MIC) in most strains tested was found to be relatively high (from 6.25 mg.mL to 12.50 mg.mL). The maximum concentration of polyphenols without any inhibitory effect (MCWI) ranges from 0.390 mg.mL to 0.781 mg.mL. The results from the present study showed that among the tested lactic acid bacteria, Lactobacillus delbrueckii subsp. bulgaricus S19, Lactobacillus rhamnosus YW and Streptococcus thermophilus S13 had the best growth characteristics in a polyphenol-enriched culture medium. These strains had the highest MIC and MCWI values and could thus be used as starter cultures for polyphenol-fortified fermented milk. Practical applications: Polyphenol-enriched extracts from industrial plant byproducts (waste) – distilled rose petals (by-products of rose oil production) and strawberry and bilberry press residues (by-products of fruit juice production) can help improve economic outcomes and solve environmental problems in the food industry. Consequently, the development of functional fermented milks with a combination of probiotic starter cultures and polyphenol extracts represents a positive research direction for the food industry.