Miracle-dz/UniFAR-FTUs huggingface dataset:
Conjugate Heat Transfer Analysis of a High Pressure Air-Cooled Gas Turbine Vane

The ANSYS-CFX software is used to simulate NASA-Mark II high pressure air-cooled gas turbine. The work condition is Run 5411 which have transition flow characteristics. The different turbulence models are adopted to solve conjugate heat transfer problem of this three-dimensional turbine blade. Comparing to the experimental results, k-ω-SST-γ-θ turbulence model results are more accurate and can simulate accurately the flow and heat transfer characteristics of turbine with transition flow characteristics. But k-ω-SST-γ-θ turbulence model overestimates the turbulence kinetic energy of blade local region and makes the heat transfer coefficient higher. It causes that local region temperature of suction side is higher. In this paper, the compiled code adopts the B-L algebra model and simulates the same computation model. The results show that the results of B-L model are accurate besides it has 4% temperature error in the suction side transition region. In addition, different turbulence characteristic boundary conditions of turbine inner-cooling passages are given and K-ω-SST-γ-θ turbulence model is adopted in order to obtain the effect of turbulence characteristic boundary conditions for the conjugate heat transfer computation results. The results show that the turbulence characteristic boundary conditions of turbine inner-cooling passages have a great effect on the conjugate heat transfer results of high pressure gas turbine. ANSYS is applied to analysis the thermal stress of Mark II blade which has ten radial cooled passages and the results of Von Mises stress show that the temperature gradient results have a great effect on the results of blade thermal stress.Copyright © 2010 by ASME
Detection of difficult conceptions in dairy cows using selected data mining methods

In the present study, the detection of difficult conceptions in dairy cows using selected data mining methods – na ve Bayes classifier (NBC) and regression and classifications trees (CART) is presented. The set of 11 diagnostic variables was used, which included, among others, number of lactation, artificial insemination (AI) season, age of inseminated cow, proportion of HF-genes in cow genotype, sex of calf from preceding calving, length of pregnancy, milk, protein and fat yield. Two conception classes were distinguished: the GOOD class, if a cow conceived after one or two AIs and the “POOR” class, if more than two AIs per conception were required. The models were characterized by capability of predicting the membership of conceptions to either class. Correctness of predictions was 83%. CART proved to be more precise in detecting conceptions of the POOR class (sensitivity) compared with predictions by NBC (P ≤0.01). Specificity was similar for both classifiers (90% and 93%). Among the variables determining conception class, calving-to-conception interval, calving interval and the difference between the mean body condition and condition at AI were the most significant variables for CART. Utilization of these classifiers, particularly of CART, may help a breeder to appropriately prepare cows for AI, thus contributing to the improved financial results of a herd.
Thermal Analysis of Sisal/Epoxy Composite Processed by RTM

Nowadays, polymeric composites reinforced with natural fibers are being considered in the civil engineering area. The use of polymeric composites to reinforce degraded timber structures can improve its behavior. Fibers with larger structural applications are glass and carbon but the use of natural fibers is an economical alternative and posses many advantages such as biodegradability, low cost and is derived from natural and renewable sources. Epoxy composite reinforced with sisal fabric was processed by resin transfer molding (RTM) at room temperature and this work studies thermal behavior and its respective mechanism of thermal decomposition. Samples of sisal fiber, epoxy resin and sisal/epoxy composite were characterized by Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). Thermogravimetric curves showed that sisal fibers can be used in manufacturing process where the processing temperature does not exceed 177°C and shown that the epoxy resin has the greatest stability material followed by sisal/epoxy composite.
Sensitization to fungal allergens in patients with respiratory allergy – accuracy in diagnostic process

Introduction. In Bulgaria, mold allergies are common, and sensitization to different fungal species is found in many patients with atopy.The objective of this study is to explore sensitization to the most widespread mold species in Bulgaria, and to determine the extent of sensitization to Alt a1, a major allergen of Alternaria alternata, by using component-resolved diagnosis.Materials and Methods. 21 patients (14 males and 7 females, age range 5-40 years), with respiratory allergy participated in the study. All patients are sensitized to mix of fungal allergens containing: Alternaria alternata, Aspergillus sp. , Cladosporium herbarum, Penicillium notatum, proved by in vivo and in vitro methods. All patients underwent the ImmunoCAP test and were assessed for sIgE to individual fungal allergens: m1 Penicillium notatum, m2 Cladosporium herbarum, m3 Aspergillus fumigatus and m6 Alternaria alternata. The component-resolved diagnosis to Alt a1 was performed for 10 patients with increased sIgE to m6 Alternaria alternata.Results. All studied patients (100%) had elevated sIgE to Alternaria alternata. Eight (38%) patients were sensitized to Penicillium notatum. 11 (52%) and 10 (48%) patients were sensitized to Cladosporium herbarum and to Aspergillus fumigatus, respectively. Ten patients (48%) were monosensitized to Alternaria alternata. Nine (90%) patients with sensitization to Alternaria alternata demonstrated elevated levels of IgE to Alt a1.Conclusion. Alternaria alternata most often causes sensitization in patients with respiratory allergy. The component-resolved diagnosis using Alt a1 is a precision marker to prove species-specific sensitization to Alternaria alternata.
SENSITIVITY ANALYSIS OF THE ROOT ZONE WATER QUALITY MODEL

The long-term goal of this research is to improve tools for predicting water quality in agricultural watersheds with significant sub-surface drainage. Specifically, USDA-ARS’ Root Zone Water Quality Model (RZWQM) was investigated as a tool for predicting the effects of agricultural management practices on nitrate loads in tile drainage in east central Illinois. Sensitivity of the model was explored to identify those input parameters with the greatest influence on tile flow, nitrate in tile drainage, and crop yield. Studies were made within the contexts of two hydraulic descriptions of a silty clay loam soil and two crops, corn and soybeans. Simulated tile flow proved to be most sensitive to drain spacing and soil hydraulic properties. In addition to the parameters affecting tile flow, tile nitrate-N was also greatly influenced by soil macroporosity. Biomass required to achieve a leaf area index of 1.0 had the greatest impact on crop yield. More information is needed regarding the statistical distributions of the input parameters. If the model is to be used to predict nitrate loads in tile drainage, particular care should be taken in selecting saturated, lateral hydraulic conductivity and Brooks-Corey soil properties.
Toward Benchmarking of Microscopic Traffic Flow Models

Several microscopic traffic flow models were tested with a publicly available data set. The task was to predict the travel times between several observers along a one-lane rural road, given as boundary conditions the flow into this road and the flow out of it. By using nonlinear optimization, the best matching set of parameters for each of the models was estimated. For this particular data set, the models that performed best were the ones with the smallest number of parameters. The average error rate of the best models is about 16%; however, this value is not very reliable: the error rate fluctuates between 2.5% and 25% for different parts of the data set.
MODELING OF VEHICLE ROLLOVER AND EVALUATION OF OCCUPANT INJURY POTENTIAL USING MADYMO

This paper discusses the modeling of vehicle rollover collisions and resulting occupant motions. MADYMO is used to model a completely instrumented National Highway Traffic Safety Administration (NHTSA) dolly rollover collision of a Bronco II. Animated modeled motions are compared to actual video footage of the rollover. Measured acceleration pulses from the test are compared with the computed accelerations of the vehicle center of gravity, and driver head and chest accelerations. Also, the vehicle roll velocity test data are compared to the computed values. It was found that there was good agreement between the modeled and test results. The capability to determine the injury of the occupant from the computed results is discussed. (A) For the covering abstract of the publication see IRRD E200601.
Pushover Analyses of a R/C Frame by Distinct Software

A series of pushover analyses on two‐dimensional RC frames, part of an office building, are performed. They constitute a detailed parametric study, varying the number of stories and its height, and also the bay width. Regarding the stated objective, several commercial packages universally used in the design of civil engineering structures were used, namely SAP 2000, SeismoStruct and MIDAS. To represent the influence of the masonry infill panels, the equivalent tie method is used considering several values for the tie width. The influence of other parameters, on the structural behavior of the RC frame through a pushover analysis, is also analyzed: the confinement of the structural elements (columns and beams) and the length and location of the plastic hinges forming near the end of the structural elements. Finally, it is also parameterized the behavior of the structure when submitted to different load patterns, such as: uniform and modal, as suggested in the Eurocode 8, and triangular. Major conclusions of.
Collective intelligence-based resource allocation to optimise knowledge and innovation harnessing in corporate environments

A typical problem that large enterprises face is how to effectively harness the intangible knowledge, expertise, skills and lessons learnt of their staff members. Intangible knowledge harnessing and its codification into usable document formats are vital for the enterprise since they directly affect its ability to innovate and solve complex new problems. However, the identification of the individuals whose contribution can solve each knowledge-demanding problem may be difficult. In this paper, we propose a novel mechanism that uses the collective intelligence of the corporate crowd to identify the tacit knowledge competencies of each employee and coordinate their contributions, inside a wiki-like system, so that each individual may contribute in the most efficient way. Experimental results show that, compared to the fully self-coordinated pattern used by current collaborative knowledge harnessing approaches, the proposed mechanism can help the corporate community allocate its intangible skill resources more efficiently, and thus produce more qualitative knowledge in a timelier manner.
The COVID-19 Pandemic Struggle of Older Adults' in Ethical Perspective: A Qualitative Research

ABS TRACT Social stigmatization and deprivation of human rights on the axis of ageism and social exclusion emerge as a common way of suffering for older adults during the coronavirus disease-2019 (COVID-19) pandemic. The research aims to define the psychosocial adjustment experiences of older adults during the COVID-19 pandemic, the phenomenon of stigmatization within the context of age discrimination and social exclusion. A qualitative study was conducted with 25 elder people in 2020 using the phenomenological de-sign and purposeful sampling method. Data were analyzed using Reflective Lifeworld Research, a phenomenological approach. The research data were analyzed under 5 main themes; anxiety, stigma-tization, coping strategy, adaptation to change experience, ı ntergenerational solidarity experience and 19 sub-themes under these themes. According to the results of the research, it was determined that older adults were exposed to social stigma as part of ageism and social exclusion during the COVID-19 pandemic. In addition to these data that make it difficult for older adults to cope with the process and their psychosocial adjustment processes, the strengths of the aging process and examples of intergenerational solidarity are also revealed. In the light of all these data, it is thought that social stigma-tization of older adults will adversely affect the health and well-being of society and increase morbidity and mortality during the COVID-19 pandemic process. For this reason, it is thought that global authorities should develop new strategies, taking into account the heterogeneity in aging and changing needs in individuality, instead of providing a uniform directive, taking into account the need to improve the public's perception of risk
MECHANISMS FOR SALMONELLA INFECTION AND POTENTIAL MANAGEMENT OPTIONS IN CHICKEN

Salmonella enterica is the largest species in genus Salmonella with its serovars responsible for infection in chickens and other warm-blooded hosts. After oral ingestion, Salmonella penetrates the mucosal layer of the gastrointestinal tract (GIT). It then provokes gastroenteritis and systemic infection to chickens of all ages depending on the serovar involved. The paper explains about Salmonella infection via Type Three Secretion System (TTSS) encoded Pathogenicity Islands (PIs) and how the bacterium survives the acidic environment of GIT. It also explains the roles of TTSS-1 and TTSS-2 in translocation of effectors that interfere with host proteins and later internalisation of Salmonella in Salmonella containing vacuole (SCV). Other virulence factors such as plasmid, biofilm and lipopolysaccharides are highlighted, and their importance in inducing pathogenicity to host was also included in the paper. Therefore, several factors are geared toward survival, infection, and replication of Salmonella in the host cells. Hence, this article explains the mechanisms of Salmonella infection in chicken, its persistence in different environments and the approaches in controlling chicken salmonellosis. Pathogenicity Islands, Chicken, Infection.
Seismic Performance of Precast Prestressed Concrete Piles

ATC3‐06 placed strict limitations on the use of precast prestressed concrete piles in severe seismic regions. Two reasons contributing to the decision were the poor level of understanding of the curvature capacity of such piles and the magnitude of the curvatures which are likely to be imposed on them by a moderate to severe earthquake. This paper describes full‐scale physical experiments to study the former and computer calculations to study the latter. The writers conclude that prestressed concrete piles containing modest amounts of spiral reinforcement should give satisfactory performance in the vast majority of applications on the west coast of the United States, and that the analysis of soil‐pile interaction described here is a useful tool for the design of pile foundations in seismic regions.
Potential Spending on Veterans’ Medical Care

The U.S. Department of Veterans Affairs provides medical care to a large share of veterans. This paper describes some of the distinctive features of the system—including the services provided, funding mechanism, and cost to veterans. It then examines the growth in the cost of providing services over the past decades and of expanding access to medical care by non-VA providers and facilities. The paper presents two projections of VA spending growth over the next decade, both of which could raise concerns about affordability in a period of constrained federal budgets.
The sensitivity improved two-test algorithm “SIT2”: a universal optimization strategy for SARS-CoV-2 serology

Reliable antibody tests are an essential tool to identify individuals who have developed an adaptive immune response to SARS-CoV-2. However, attempts to maximize the specificity of SARS-CoV-2 antibody tests have come at the cost of sensitivity, exacerbating the total test error with increasing seroprevalence. Here, we present a novel method to maximize specificity while maintaining or even increasing sensitivity: the “Sensitivity Improved Two-Test” or “SIT²” algorithm. SIT² involves confirmatory re-testing of samples with results falling in a predefined retesting-zone of an initial screening test, with adjusted cut-offs to increase sensitivity. We verified and compared the performance of SIT² to single tests and orthogonal testing (OTA) in an Austrian cohort (1,117 negative, 64 post-COVID positive samples) and validated the algorithm in an independent British cohort (976 negatives, 536 positives). The specificity of SIT² was superior to single tests and non-inferior to OTA. The sensitivity was maintained or even improved using SIT² when compared to single tests or OTA. SIT² allowed correct identification of infected individuals even when a live virus neutralization assay could not detect antibodies. Compared to single testing or OTA, SIT² significantly reduced total test errors to 0·46% (0·24-0·65) or 1·60% (0·94-2·38) at both 5% or 20% seroprevalence. SIT² proved to be the best diagnostic choice at both 5% and 20% seroprevalence in all tested scenarios. It is an easy algorithm to apply to different available SARS-CoV-2 antibody testing systems and can potentially be helpful for the serology of other infectious diseases.
Local experiences with mining royalties, company and the state in the Solomon Islands

Royalties, rents and other material benefits from mining ventures have been of interest to development discussions. These benefits are important to all stakeholders but the first mining agreement in the Solomon Islands only accommodated a tiny percentage of the gross value of gold and silver produced as the mining lease to landowning groups. The questions that led me to the Gold Ridge mine and surrounding communities on Guadalcanal in 2007 and 2010 are: (i) Can royalties from the mine be sustainable agents to improve people’s livelihoods? (ii) To what extent have royalty payments, licence fees and rents from mines impacted on local Solomon Islanders’ lives? (iii) How do mining agreements and courts of law do or do not safeguard local social capital and the environment? In analysing the data, the processes of negotiating mining agreements; movement and resettlement of people; livelihood and gendered opportunities offered by the mine; and the state’s role in the mine are discussed in this paper. Moreover, the paper responds to the three questions above and assesses the sustainability of mining royalties and the role of the modern state and processes in the Solomon Islands mining sector.
Fatal Words: Communication Clashes and Aircraft Crashes

On March 27, 1977, 583 people died when KLM and Pan Am 747s collided on a crowded, foggy runway in Tenerife, the Canary Islands. The cause was a miscommunication between the pilot and the air traffic controller. The pilot radioed, "We are now at takeoff," meaning that the plane was lifting off, but the tower controller misunderstood and thought the plane was waiting on the runway. In" Fatal Words", Steven Cushing explains how miscommunication has led to dozens of aircraft disasters, and he proposes innovative solutions for preventing them. He examines ambiguities in language when aviation jargon and colloquial English are mixed, when a word is used that has different meanings, and when different words are used that sound alike. To remedy these problems, Cushing proposes a visual communication system and a computerized voice mechanism to help clear up confusing language. This is an accessible explanation of some of the most notorious aircraft tragedies of our time, and it should appeal to scholars in communications, linguistics and cognitive science, to aviation experts and to general readers.
55—INTERNATIONAL INTER-LABORATORY TRIALS IN YIELD-TESTING

The C.S. I.R. O. Division of Textile Physics has for the past few years conducted. with the co-operation of testing laboratories, several inter-laboratory or ‘round-robin’ trials concerned with the yield-testing of greasy wool in the form of core-samples. The methods of test are those given in IWTO Specification IWTO–19–68(E). The results of early trials, in which only testing laboratories in Australasia were concerned, have been reported. This paper describes a further series of trials, involving testing laboratories throughout the world. For wools that are low in vegetable fault, a satisfactory agreement between laboratories is demonstrated by the trials, but the agreement is somewhat less satisfactory for wools of high vegetable-fault content. The determination of vegetable-matter content appears to be the aspect of the test method in which variability between laboratories is most likely to occur. It is concluded that some further research on the method is desirable.
An Enhanced Model for combined heat and air infiltration energy simulation

The need for efficient, sustainable, and planned utilization of resources is ever more critical. Several building energy analysis tools have been developed to assess energy demands and lifecycle energy costs in buildings. Such analyses are essential for an efficient heating, ventilation, and air conditioning design that overcomes the pitfalls of an under/over-designed system. Studies have estimated air infiltration accounts for up to 50% of a building’s energy demand. This stresses the need that energy simulation engines accurately account for air infiltration. An Enhanced Model for air infiltration has been developed.
Should bonus points be included in the Six Nations Championship?

We construct strength measures based on wins and potential bonuses and use a prediction model to determine bonuses that are significantly correlated with team strength. The results reveal that the bonus for losing by seven or fewer points is strongly statistically significant, bonuses for scoring three or more net tries are moderately significant and bonuses for scoring four or more tries are insignificant. These findings indicate that if bonuses are included to reward strong teams, the Six Nations Championship should adopt the bonus system used in French domestic competitions rather than that used in the Rugby World Cup and elsewhere.
From Web-Based to Mobile: Experiences of Developing a Personally Controlled Health Management System

Objective/Aims: Personally controlled health management system (PCHMS) in mobile technologies offer a new platform for personal health care. The objective of this study was to develop a mobile version of an existing web-based PCHMS and analyze its usability. Method: The mobile extension of the PCHMS was iteratively designed from its web-based version and evaluated over a period of 6 months. 17 participants completed a 30-minute five-part usability study incorporating the think aloud protocol, task activities, card sorting exercises, interviews, and a technology acceptance questionnaire measuring the “perceived usefulness” and “perceived ease of use” of the mobile version. Results: A mobile version of the PCHMS from its original web-based conception was successfully developed. On a scale from 1 to 7 (where 1=strongly agree, and 7=strongly disagree), participants indicated an intention to use the mobile application with a mean of 1.82, perceived usefulness with a mean of 2.24, and ease-of-use with a mean of 2.71, indicating participants found the overall mobile application useful, easy to use, and that there is strong intention to use the mobile application to manage their health. Conclusion: Providing a PCHMS in both web-based and mobile-based platform that is well accepted by consumers should allow more people to have convenient access to their health information, self-management tools and thus improve their overall day-to-day health management. The user experience on smartphone should be carefully considered when transferring a PCHMS from traditional web-based to mobile application.