Miracle-dz/UniFAR-FTUs huggingface dataset:
Die Lkw-Maut und die drei Grundprobleme der Verkehrsinfrastrukturpolitik

Benutzungsgebuhren fur Wegeinfrastrukturen haben keineswegs nur eine Finanzierungsfunktion, sondern stellen auch ein geeignetes Instrument zur Allokation knapper Infrastrukturkapazitaten dar. Da die Opportunitatskosten der Inanspruchnahme von knappen Wegeinfrastrukturkapazitaten von allen Benutzergruppen abhangen, sind alle Nutzergruppen bei der Erhebung von Benutzungsgebuhren einzubeziehen, also neben den schweren Lkw auch leichte Lkw, Busse und Pkw auf den Strasen. Zur Glattung der Verkehrsstrome im Tages-, Wochenund Saisonverlauf erscheint es sinnvoll, zeitlich differenzierte Staugebuhren nach dem Prinzip der Spitzenlasttarifierung einzufuhren. Mehrstufige Tarife mit periodenbezogener Grundgebuhr und variabler Leistungsgebuhr, wie sie im Eisenbahnverkehr schon praktiziert werden, konnen auch im Strasenverkehr Anwendung finden.
Power HV circuit breakers with severe capacitive switching duty

It has often been found necessary to operate HVDC converter station circuit breakers to disconnect a major capacitive load from the main AC buses under severe transient overvoltage conditions. This paper describes results of tests made on a conventional puffer breaker aimed at gaining knowledge of the consequences of a restrike on the breaker itself. The paper also proposes a method to reduce the transient recovery voltage (TRV) requirements imposed on power circuit breakers in order to be able, in most of the cases, to use standard devices for capacitive breaking. The method is based on application of metal-oxide resistors in parallel with the breaker contacts. The phenomena described in this paper are in all aspects valid for any power system which can have the cases presented. >
Logic gates with a single graphene transistor

The operation of four basic two-input logic gates fabricated with a single graphene transistor is demonstrated. Single-transistor operation is obtained in a circuit designed to exploit the charge neutrality point of graphene to perform Boolean logic. The type of logic function is selected by offset of the input digital signals. The merits and limitations of the fabricated gates are assessed by comparing their performance with that of conventional logic gates.
Multilingual Spoken Words Corpus

Multilingual Spoken Words Corpus is a large and growing audio dataset of spoken words in 50 languages collectively spoken by over 5 billion people, for academic research and commercial applications in keyword spotting and spoken term search, licensed under CC-BY 4.0. The dataset contains more than 340,000 keywords, totaling 23.4 million 1-second spoken examples (over 6,000 hours). The dataset has many use cases, ranging from voice-enabled consumer devices to call center automation. We generate this dataset by applying forced alignment on crowd-sourced sentence-level audio to produce per-word timing estimates for extraction. All alignments are included in the dataset. We provide a detailed analysis of the contents of the data and contribute methods for detecting potential outliers. We report baseline accuracy metrics on keyword spotting models trained from our dataset compared to models trained on a manually-recorded keyword dataset. We conclude with our plans for dataset maintenance, updates, and open-sourced code.
The influence from the working medium on the profile loss in compressor and turbine airfoils

A number of CCS-technologies are currently being developed for the reduction of CO2 emissions from thermal power stations. One such technology is the oxyfuel process, in which a mixture of CO2 and steam is used as the working medium. The semi-closed oxyfuel combustion combined cycle (SCOC-CC) is an oxyfuel cycle where the working medium mainly consists of CO2 (85-95%). Current practice is to design turbomachinery using 1D and 2D flow tools, which primarily rely on loss models derived from experiments with air. For the oxyfuel case, the losses are hence extrapolated from air to a CO2/steam mixture, which can have adverse effects on the accuracy of the loss model. Therefore, the applicability and accuracy in using profile loss correlations derived with air when changing the working medium to the oxyfuel like environment of pure CO2 was investigated. The reason that 100% CO2 was chosen as the working medium and not a CO2/H2O mixture is that the water content present is relatively low and varies from case-to-case. Hence, a general water content could not be specified that was relevant for all cases. The study was done with typical compressor and turbine airfoils using a steady-state Navier-Stokes' 3D flow solver. This solver type can resolve the boundary layer (y(+) of about unity) rather than relying upon a boundary layer equation, - hence eliminating the latter as a source of error. The hypothesis was that the profile loss depended on the viscosity, and that amendments to the viscosity would affect the profile loss. This trend was observed, e.g. when changing the working medium from air to CO2, the profile loss coefficient (Y-p) for the compressor was reduced with 25% and for the turbine with 6%, respectively. A slight difference in profile loss for an individual cascade was found when changing the working medium from air to CO2. Theoretically, this difference leads to an increased mismatch of the stages downstream even at design point, and thus increases the losses and reduces the stability. However, the difference in profile loss is relatively small at the design point, and thus it is the authors' opinion that the practical effect will be quite small. Therefore, it is considered safe to use loss correlations derived from air for design point calculations even when the working medium is CO2. However, there is a certain risk involved that air- based loss models are not capable of predicting the behavior over the full operating range, as the boundary layers risk to behave in a different manner. Another aspect that was considered is how the wet surface area (physical size) of a turbomachine performing the same work (mho) will change between the two gases. This is important as the total profile loss in a whole compressor or turbine is directly proportional to this change. The conclusion was that the total wet area would increase by some 20% for CO2 compared to air. (Less)
Study of clinicoradiological and functional outcomes of intramedullary nailing in diaphyseal radius ulna fractures in adults

Introduction: One of the most common fractures is a forearm fracture. The most common causes of these fractures include high-energy incidents, direct trauma, and falls from great heights. It's not unusual to have open wounds with a neurovascular impairment. Supination of the forearm with a backward and upward loading force with a forward angulation while falling on an outstretched hand is comparatively a less severe mechanism than pronation and upward force. Direct impact which is referred to as ‘Nightstick injury’ also lead to shaft of ulna fracture. The goal of this study was to assess the results of closed fixation in radius ulna fractures with intramedullary nailing for a minimum of 6 months. Nailing with square nails, titanium elastic nails (TENS nails), or long Kirschner wire has proven to be extremely effective. Method: Over the course of one year, this is a retrospective case series investigation of forearm bone fractures and the treatment options available. We chose patients where intramedullary nailing was used as a therapy option and were followed for at least 6 months. Galeazzi variety, monteggia variety, pathological fracture, and non-union following previous surgery were all ruled out. Disabilities of the arm, shoulder, and hand (DASH) score and Grace and Eversmann functional outcome score were used to assess the results. Results: Of the 25 patients, 14 patients had excellent functional outcome according to Grace and Eversmann score, 8 patients had good outcome, 4 patients had acceptable while 1 was unacceptable. The mean DASH score was 16.32. Conclusion: This study shows that closed method for fixation by intramedullary nailing of both bone forearm fractures leads to excellent to good functional outcomes (according to DASH score and Grace and Eversmann score) with less complications. In 6 months follow up x ray there is radiological union in all cases with no angulation, malunion or non-union.
Please, Help Me! I Am Lost in Zoom

Abstract. LostInZoom is a new research project that will seek to design novel ways of zooming into multi-scale maps, to overcome the desert fog effect that occurs with current multi-scale cartography techniques. The desert fog effect makes you feel lost for a few seconds after a zoom in or out, because the map has changed. The idea developed in this project is to propose anchor-based zooming techniques, where salient landmarks salient at multiple scales serve as anchors between maps during the zoom. This paper discusses the main challenges that will be addressed in this project: (1) better understand and measure the desert fog effect with maps; (2) defining and modelling the best anchors for anchor-based zooming; (3) designing more progressive multi-scale maps to host these anchors; (4) designing staged animations based on anchors between maps at different scales.
Transportation and axial dispersion of sugar in flighted rotary dryers

Model based control of rotary dryers relies on accurate modeling of the heat and mass transfer between air and solids and the transport of solids through the dryer. The need to improve control of these units is expected to increase with increased quality demands placed on Australia’s sugar industry. Although many models are available for predicting the residence time in rotary dryers, their reliability has been limited by the lack of industrial data for validating these models. This work presents experimental data for the residence time of solids in an industrial sugar dryer. Tracer studies have been used to determine residence time distributions. Axial dispersion and mean residence times are examined under different operational conditions. Reactor models commonly used to reproduce the experimental residence times are discussed. The importance of sugar residence time distributions on dryer performance is also discussed.
Quantitative characteristics of the alpha-rhythm of the electroencephalogram in depressive disorders

The aim of research was to study the quantitative characteristics of the alpha rhythm in patients with depressive disorders. Material and methods. The study sample consisted of patients who were treated at the clinic of the Research Institute of Mental Health (department of affective states) Tomsk NIMC. A total of 84 patients (67 women, 17 men) aged 20 to 60 years with mood disorders in the framework of a depressive episode, recurrent depressive disorder and dysthymia were examined. An electroencephalogram was recorded at rest with closed and open eyes. The values of the absolute spectral power of the alpha rhythm, the parameters of the microstructure of the alpha spindle were analyzed and the reactivity index (the Berger effect) was calculated. Results. With open eyes, the spectral power of the alpha rhythm was statistically significantly higher in patients with depressive disorders in the Fp1 (p=0.041), F4 (p=0.042), F7 (p=0.046) and T4 (p=0.047) leads compared to the control. Also, in patients with depressive disorders, a predominantly low-amplitude alpha rhythm was recorded (53.6% vs. 26.7%, p=0.006). The degree of alpha-rhythm depression in the posterior temporal leads T5 (p=0.012) and T6 (p=0.006) was statistically significantly less pronounced in patients with depressive disorders compared to the control group of healthy individuals. Conclusion. The detected changes indirectly indicate a decrease in the oscillatory activity of brain processes in depressive disorders.
Torque analysis of a radial flux air-cored permanent magnet machine with a double-sided rotor and non-overlapping windings

Analysis of a Radial Flux Air-cored Permanent Magnet Machine with a Double-sided Rotor and Non-overlapping Windings P. J. Randewijk Promotor: Prof. Maarten Jan Kamper Faculty of Engineering Department of Electrical & Electronic Engineering Dissertation: PhD (Electrical Engineering) March 2012 In this dissertation a new type of electrical machine, a Radial Flux Air-Cored Permanent Magnet machine with a Double-sided Rotor and utilising concentrated, non-overlapping windings, is proposed. The concept of the Double-sided Rotor Radial Flux Air-Cored Permanent Magnet machine, or RFAPM machine for short, was derived from the Double-sided Rotor Axial Flux Air-Cored Permanent Magnet (AFAPM) machine. One of the problems that AFAPM machines experience, is the deflection of the rotor discs due to the strong magnetic pull of the permanent magnets, especially with double-sided rotor machines. The main advantage of a RFAPM machine over a AFAPM machine is that the rotor back-iron is cylindrically shaped instead of disk shaped. Due to the structural integrity of a cylinder, the attraction force between the two rotors does not come into play any more. The focus of this dissertation is on a thorough analytical analysis of the Double-Sided Rotor RFAPM machine. With the RFAPM being an air-cored machine, the feasibility to develop a linear, analytical model, to accurately predict the radial flux-density and hence the induced EMF in the stator windings, as well as the accurate calculation of the developed torque of the machine, needed to be investigated. The need for a thorough analytical examination of the Double-Sided Rotor RFAPM machine stemmed from the need to reduce the blind reliance on Finite Element Modelling (FEM) software to calculate the back-EMF and torque produced by these machines. Another problem experienced with the FEM software was to obtain accurate torque results. Excessive ripple torque oscillations were sometimes experienced which took a considerable amount of time to minimise with constant refinement to the meshing of the machine parts. Reduction in the mesh element size unfortunately also added to the simulation time. The requirement for an accurate analytical model of the RFAPM machine was also necessary in order iii Stellenbosch University http://scholar.sun.ac.za
Comparability and Transferability of Commuter Behavior Characteristics between Cities: Departure Time and Route-Switching Decisions

Extensive diary surveys of commuter behavior were conducted in Dallas and Austin. These surveys provide data to characterize the day-today dynamics of commuter decisions, including departure time and route, for both morning and evening commutes. The data were used to develop user decision models that relate route and departure time switching patterns to socioeconomic characteristics, workplace conditions, and traffic system characteristics. Comparisons were made to assess the extent of transferability of behavioral findings and model parameters. Remarkable similarity was found in the general commuting behavior patterns observed in the two cities, such as greater switching activity in the evening than in the morning commute and greater frequency of departure time switching relative to route changes. Differences between the two cities appear to be primarily due to the larger size of Dallas.
Field Performance of Spray Applied Thermal Insulating Foams

The replacement of old blowing agents has raised the question of the long-term thermal performance of such foams. To retain the long-term thermal per formance of new SPUF types, chemical manufacturers (system houses) will have to consider a more fundamental review of the polymers available to create a new gener ation of SPUFs, and the SPUF contractors (field fabricators) will have to acquire the technical knowledge needed for promoting the SPUF in a number of new applica tions. To place these issues into perspective, this presentation on long-term thermal per formance of SPUFs, together with one from the National Research Council of Canada which addresses some key functions of the building envelope, such as the air barrier performance lead to the conclusion that to enhance the use of SPUFs in con struction systems, a clear focus on the performance controls is required.
A study of cytopathological pattern of cervical papanicolaou smear examination in women between 20 - 75 years of age group

Background: Cancer of uterine cervix is a leading cause of mortality and morbidity among women worldwide. The primary cause of this cancer is infection with human papillomavirus. Pap smear is a simple, safe, non-invasive and cost effective method for the detection of pre-cancerous, cancerous and benign lesions of cervix. Aim: To study the cytological patterns of cervical Pap smears in 766 cases and to classify the cytological abnormalities based on the Bethesda system 2014. Materials and methods: A retrospective study of total 766 cases of cervical smears was done at Pathology department, GMERS Medical College and Civil Hospital, Sola, Ahmedabad over a period of 1.5 years starting from 1st January 2020 to 30th June 2021. Women between 20 -75 years of age group were included in the study. Cervical smears were taken by obstetrics and gynaecology department and were received at pathology department, stained by using rapid Papanicolaou staining technique and studied by using light microscopy. Results: we studied total 766 cases out of which 26(3.40%) smears were unsatisfactory for evaluation. Out of these 740 cases, most common were inflammatory lesions-382 cases (49.86%). Cervical epithelial cell abnormalities including ASCUS-5 cases (0.67%), ASC-H -2 cases (0.24%), LSIL6 cases (0.78%), HSIL-1 case (0.13%) and AGC-NOS – 1 case (0.13%) were detected in our study. Majority of the cases were belonging to 31-40 years of age group -364 cases(47.50%) followed by 4150 years-260 cases (33.94%). Conclusion: Pap smear is an easy, simple, safe and noninvasive method of cervical examination. By using Pap smear as a screening test, it is possible to detect malignant lesions at an earlier stage.
Maximum-likelihood GPS parameter estimation

: Recently we proposed an acquisition process for a maximum-likelihood GPS receiver that considers the joint processing of all GPS satellite waveforms. The resulting estimator was shown to provide an elegant solution to the near–far problem and to perform better than the suboptimal sliding-correlator estimator. However, the proposed acquisition model included only the code search, which estimates just the time of arrival (TOA) between a GPS satellite and a maximum-likelihood GPS receiver. In this paper we enhance the acquisition process by including the estimation of Doppler along with the estimation of the TOA, which results in a two-dimensional Doppler and code search. A maximum-likelihood GPS receiver would require only one front-end hardware section for processing all GPS signals in view, thus simplifying the entire architecture of a GPS receiver. An assessment based on theoretical performance and simulation results indicates that a maximum-likelihood GPS receiver can achieve an order-of-magnitude performance improvement relative to a sliding-correlator GPS receiver. Simulation data will be validated in the near future using GPS acquisition data from the Novatel ProPack AG-G2+DB9-RT2, and the results of this work will be presented in a future publication.
AMEP_A_342386 1411..1417

1Department of Midwifery, Jimma University, Jimma, Ethiopia; 2Department of Reproductive Health, Jimma University, Jimma, Ethiopia; 3Department of Nursing, Jimma University, Jimma, Ethiopia; 4Department of Statistics, Jimma University, Jimma, Ethiopia; 5Department of Pharmacy, Jimma University, Jimma, Ethiopia Background: Even though lockdown measures contributed to reducing the rate of COVID-19 transmission, it resulted in great distraction in clinical learning. Thus, the aim of this study was to assess COVID-19’s negative impacts on clinical learning, and proposed compensation mechanisms among midwifery and nursing undergraduate students of Jimma University, southwest Ethiopia. Methods: This study was conducted among 147 midwifery and nursing students of Jimma University in March 2021 using cross-sectional study design. The respondents were selected by simple random sampling method. Data were collected by using a self-administered questionnaire and analyzed descriptively by SPSS v.23. The results were presented in tables, and narrated. Results: Three fifths (88 (59.9%)) of the study participants perceived high negative impacts of COVID-19 on their recent clinical learning. The proposed compensation mechanisms to be implemented before and during the next clinical practice include: using teacher-facilitated skill demonstration laboratory, case scenarios, clinical teaching videos, and clinical conferences. Students’ effort to understand the objectives of their clinical learning and using multimedia to achieve it was another proposed compensation mechanism. Also, providing preplacement training and in-service training with priority for students graduating during COVID-19 pandemic were proposed compensation mechanisms. Conclusion: COVID-19’s negative impacts on clinical learning were great among the participants of this study. The proposed compensation mechanisms should be applied by all concerned bodies with great emphasis to end the long-term negative impact of the pandemic, thereby ensuring the production of competent midwives and nurses.
CMIP6 Models Underestimate the Holton‐Tan Effect

The teleconnection between the Quasi‐Biennial Oscillation (QBO) and the Arctic polar vortex is investigated using Coupled Model Intercomparison Project 6 (CMIP6) models. Output from 14 CMIP6 models is compared with reanalysis, three experiments with prescribed QBOs, one of which has no free polar stratospheric variability, and transient experiments in which a QBO is prescribed in runs previously devoid of a QBO. Each CMIP6 model underestimates the Holton‐Tan effect (HTE), the weakening of the polar vortex expected with QBO easterlies in the tropical lower stratosphere. To establish why, potential vorticity maps are used to investigate longitudinal variations in the teleconnection. Prescribing easterly QBO in the transient experiments promotes more high‐latitude planetary wave breaking by influencing the mid‐latitude stratospheric circulation, particularly over Asia. CMIP6 models that better simulate this response over Asia better simulate the HTE. These models also have stronger 10 hPa QBO westerlies.
Time of Day of Vaccination Affects SARS-CoV-2 Antibody Responses in an Observational Study of Health Care Workers

The COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a global crisis with unprecedented challenges for public health. Vaccinations against SARS-CoV-2 have slowed the incidence of new infections and reduced disease severity. As the time of day of vaccination has been reported to influence host immune responses to multiple pathogens, we quantified the influence of SARS-CoV-2 vaccination time, vaccine type, participant age, sex, and days post-vaccination on anti-Spike antibody responses in health care workers. The magnitude of the anti-Spike antibody response is associated with the time of day of vaccination, vaccine type, participant age, sex, and days post-vaccination. These results may be relevant for optimising SARS-CoV-2 vaccine efficacy.
Pediatric weight management amid the COVID-19 pandemic: a natural telemedicine experiment

ABSTRACT During the COVID-19 shutdown, our pediatric weight management center instituted telemedicine and expanded educational content on Facebook. The aims of this study were to assess telemedicine utilization and social media engagement (optional). We performed a retrospective chart review and examined Facebook posts. During the first 6 weeks of the pandemic, 129 patients completed a telemedicine visit (52 non-completers). Completers were less likely to be Medicaid-insured (OR 0.252). Families engaged most with Facebook exercise content (avg. views: 449). Further analysis is necessary to determine how to make telemedicine accessible for low-income families and to determine if social media engagement improves anthropometric outcomes.