Miracle-dz/UniFAR-FTUs huggingface dataset:
Prediction of Wall Heat Fluxes in a Rocket Engine with Conjugate Heat Transfer Based on Large-Eddy Simulation

Although a lot of research and development has been done to understand and master the major physics involved in cryogenic rocket engines (combustion, feeding systems, heat transfer, stability, efficiency, etc.), the injection system and wall heat transfer remain critical issues due to complex physics, leading to atomization in the subcritical regime and the interactions of hot gases with walls. In such regimes, the fuel is usually injected through a coaxial annulus and triggers the atomization of the central liquid oxidizer jet. This type of injector is often referred to as air-assisted, or coaxial shear, injector, and has been extensively studied experimentally. Including such injection in numerical simulations requires specific models as simulating the atomization process is still out of reach in practical industrial systems. The effect of the injection model on the flame stabilization process and thus on wall heat fluxes is of critical importance when it comes to the design of wall-cooling systems. Indeed, maximizing the heat flux extracted from the chamber can lead to serious gain for the cooling and feeding systems for expander-type feeding cycles where the thermal energy absorbed by the coolant is converted into kinetic energy to drive the turbo-pumps of the feeding system. The methodology proposed in this work to numerically predict the flame topology and associated heat fluxes is based on state-of-the-art methods for turbulent reactive flow field predictions for rocket engines, including liquid injection, combustion model, and wall treatment. For this purpose, high-fidelity Large Eddy Simulation Conjugate Heat Transfer, along with a reduced kinetic mechanism for the prediction of H2/O2 chemistry, liquid injection model LOx sprays, and the use of a specific wall modeling to correctly predict heat flux for large temperature ratio between the bulk flow and the chamber walls, is used. A smooth and a longitudinally ribbed combustor configuration from JAXA are simulated. The coupling strategy ensures a rapid convergence for a limited additional cost compared to a fluid-only simulation, and the wall heat fluxes display a healthy trend compared to the experimental measurements. An increase of heat transfer coherent with the literature is observed when walls are equipped with ribs, compared to smooth walls. The heat transfer enhancement of the ribbed configuration with respect to the smooth walls is coherent with results from the literature, with an increase of around +80% of wall heat flux extracted for the same chamber diameter.
Synthesis and evaluation of the service limit state of engineered fills for bridge support.

This report synthesizes the current service limit state (SLS) design and analyses of engineered fills for bridge support used as shallow foundations. The SLS for settlement and deformations of bridge supports are summarized. Extensive literature reviews were conducted to synthesize the effects of various parameters on the SLS of engineered fills. The reliability of current prediction methods for deformations of bridge supports on granular soils are presented and evaluated using measured deformation data in the literature. Based on the literature review and synthesis, knowledge gaps and data needs for bridge supports with engineered fills were identified.
Constructive alignment in foreign language curricula: an exploration of teaching and assessment practices in Dutch secondary education

ABSTRACT While Communicative Language Teaching (CLT) is recognised as an effective approach worldwide, its implementation in foreign language (FL) classrooms remains difficult. Earlier studies have identified factors impeding CLT implementation, such as a lack of communicative lesson materials or teachers' more traditional views on language learning. In the Netherlands, CLT goals have been formulated at the national level, but are not always reflected in daily FL teaching and assessment practice. As constructive alignment between learning goals, classroom activities and assessments is a precondition for effective teaching, it is important to gain a deeper understanding of the degree of alignment in Dutch FL curricula and the factors influencing it. The current study therefore aims to take a systematic inventory of classroom practices regarding the translation of national CLT goals into learning activities and assessments. Findings revealed that teaching activities and classroom assessments predominantly focused on grammar knowledge and vocabulary out of context and, to a lesser extent, on reading skills. External factors, such as teaching and testing materials available, and conceptual factors, such as teachers' conceptions of language learning, were identified to contribute to the observed lack of alignment. Assessments in particular seem to exert a negative washback effect on CLT implementation.
PENGARUH HARGA DAN KUALITAS PELAYANAN TERHADAP KEPUASAN PELANGGAN

The results of this study were carried out to know the effect of price and service quality on customer satisfaction. The study used a survey approach to internet service customers as many as 100 people in the city of Bandung. Based on research using path analysis, it appears that the price variable has a direct influence of 14.7%. The indirect effect through the service quality variable is 13.1%, the total effect is 27.9%. On the other hand, service quality variables directly influence 32.1%. The indirect effect through the variable price is 13.1%, the total effect is 45.2%. The coefficient of determination (R-square) relationship expressed in the percentage of the contribution of all independent variables price and service quality in determining customer satisfaction variables is 73.1%. In comparison, other factors that affect customer satisfaction not examined shown by the value ? = 0.269 Or 26.9%. The recommendation is that the company should further improve the quality of the internet and other products to improve customer satisfaction.
Does Board Behaviour Matter for Board Effectiveness in Small and Medium Industries (SMEs)?: A Preliminary Observation

The issue of corporate governance affects big corporations and small businesses. Maintaining a well-functioning board of directors in small and medium-sized enterprises (SMEs) is one of the most effective ways of increasing the efficacy of the board. This article examines previous studies on board behaviour that are critical to the effectiveness of boards of directors in small and medium-sized enterprises (SMEs). Previous literature found several attributes of directors that need to be nurtured. Having a different view relating to the task in a boardroom, preparedness, involvement, use of specific knowledge and skills are among them. In short, more empirical studies relating to these antecedents are recommended to understand board behaviour better, especially when making a decision.
Effect of Financial Performance and Firm Size on Dividend Policy (Empirical Study on Consumer Goods Sector Issuers 2017-2020)

This study aims to examine and analyze the effect of Profitability (ROE), Liquidity (CR), Leverage (DER), and Firm Size (SIZE) on Dividend Policy (DPR) either partially or simultaneously. This research uses causal associative research. The population in this study is all issuers of the Consumer Goods sector listed on the Indonesia Stock Exchange with an observation period of 2017-2020 of 63 issuers. The sample used purposive sampling method, then 14 issuers were obtained as samples. The analytical method used in this study is panel data. The results showed that partially ROE has a significant negative effect on the DPR, CR has an significant positive effect on the DPR, DER has an insignificant positive effect on the DPR, and SIZE has an insignificant positive effect on the DPR. Simultaneously ROE, CR, DER, and SIZE have a significant effect on DPR. The coefficient of determination in this study is 49.45%.
Strategies Employed by Jordanian and Saudi University Students in Translating Idiomatic Expressions: A Comparative Study

This study investigates the most utilized strategies applied by Saudi and Jordanian university male translation students in translating English idiomatic expressions into Arabic. The participants of the study were all B.A. translation students at King Saud University and Yarmouk University who were selected purposefully. The total number of students was 50 (25 Saudis and 25 Jordanians) who participated in a translation test that contained 50 idioms of different categories. The study's quantitative findings revealed that Saudi and Jordanian university translation students use certain shared strategies in translating idioms regardless of their awareness of the use of these strategies.
A computer vision‐based deep learning model to detect wrong‐way driving using pan–tilt–zoom traffic cameras

Hundreds of fatal accidents occur each year due to wrong‐way driving (WWD). Although several methods have been developed to detect WWD using existing closed‐circuit television (CCTV) data, they all require manual recalibration whenever a camera rotates, and are thus not scalable across statewide CCTV networks. This paper, therefore, proposes an end‐to‐end deep‐learning‐based model that considers camera orientation as a variable, detecting camera rotation automatically and learning new decision criteria accordingly using a neural network model. We show that our proposed solution can detect WWD with a precision of 0.99 and a recall of 0.97. Due to its cheap computational cost and high error tolerance, our solution is easily scalable for statewide surveillance on a real‐time basis to help decision‐makers reduce fatalities due to WWD.
Resilience and Posttraumatic Growth after Burn: A Review of Barriers, Enablers, and Interventions to Improve Psychological Recovery

Burn injuries are traumatic experiences that can detrimentally impact an individual’s psychological and emotional wellbeing. Despite this, some survivors adapt to psychosocial challenges better than others despite similar characteristics relating to the burn. Positive adaptation is known as resilience or posttraumatic growth, depending on the trajectory and process. This review aimed to describe the constructs of resiliency and growth within the burn injury context, examine the risk factors that inhibit resilience or growth after burn (barriers), the factors that promote resilience or growth after burn (enablers), and finally to assess the impact of interventions that have been tested that may facilitate resilience or growth after burn. This review was performed according to the recently updated Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Guidelines. An electronic search was conducted in November 2021 on the databases PubMed, Medline (1966-present), Embase (1974-present), PsycINFO for English-language peer-reviewed academic articles. There were 33 studies included in the review. Findings were mixed for most studies; however, there were factors related to demographic information (age, gender), burn-specific characteristics (TBSA, time since burn), person-specific factors (personality, coping style), psychopathology (depression, PTSD), and psychosocial factors (social support, spirituality/religion, life purpose) that were evidenced to be related to resilience and growth. One qualitative study evaluated an intervention, and this study showed that a social camp for burn patients can promote resilience. This study has presented a variety of factors that inhibit or encourage resilience and growth, such as demographic, individual, and social factors. We also present suggestions on interventions that may be used to promote growth following this adverse event, such as improving social support, coping styles and deliberate positive introspection.
Whole-genome sequencing of Bantu-speakers from Angola and Mozambique reveals complex dispersal patterns and interactions throughout sub-Saharan Africa

As the continent of origin for our species, Africa harbours the highest levels of diversity anywhere on Earth. This trove of diversity provides rich opportunities to discover unknown genomic variation and explore how human populations have moved and interacted on the continent over thousands of years. However, many regions of Africa remain under-sampled. Here we present the first collection of whole-genomes from Angola and Mozambique, enabling the construction of a high-quality reference variation catalogue including three million novel SNPs. Leveraging the power and flexibility of whole-genome sequencing data, we model the development and continuity of Bantu-population structure through time, widespread admixture involving source populations from these regions across sub-Saharan Africa, and the heterogeneous population histories of Western and Eastern Bantu-speakers. In contrast to depictions of the Bantu expansion as a single, continuous macro-event, we recover evidence of admixture among distinct Bantu-speaking groups in South-Eastern Africa and bring together concordant patterns from linguistics and archaeology to paint a more complex picture of Iron Age migrations into the region. Moreover, we generate reference panels that better represents the complete diversity of African populations involved in the Atlantic slave trade, improving imputation accuracy in African Americans and Brazilians over the 1000 Genomes Project. This study fills important gaps in the current record of global genetic diversity and informs on the most significant demographic events in the recent history of Africa. We anticipate that our collection of genomes will form the foundation for future genomic healthcare initiatives involving under-represented communities in Angola and Mozambique.
Spatial and temporal patterns of Frankliniella fusca (Thysanoptera: Thripidae) in wheat agroecosystems

Frankliniella fusca Hinds (Thysanoptera: Thripidae) is an economically important pest of many cultivated crops including cotton, tomatoes, peppers and tobacco. Previous research has focused on the importance of non‐crop weeds for F. fusca populations when estimating crop infestation risk in the spring. Although weeds play an integral role in population development, early‐season cultivated hosts (e.g. wheat and sage) may also contribute and augment overall populations. Few studies have examined the role of early‐season crops as a source habitat for sensitive host crops later in the season. The goal of this study was to investigate the abiotic conditions and landscape components that are associated with F. fusca populations in winter wheat (Triticum aestivum L.). Exploring these relationships will provide insight into early‐season drivers of F. fusca. To do this, we conducted a 2 year study documenting F. fusca populations during an 8 weeks period each spring. We sampled immature thrips abundance on wheat heads while concurrently monitoring adult dispersal from the field using yellow sticky cards. Across both years, we found that immature thrips sampled during the milk and dough development stages best‐predicted adult dispersal 2 weeks later. Cumulative precipitation and the number of precipitation events beginning in the autumn of the prior year were the most important abiotic predictors of F. fusca abundance. At the landscape scale, adult F. fusca density was negatively related to the area of row crop agriculture, grasslands and amount of landscape fragmentation. Results of our study provide a basis to assess larval thrips and forecast dispersal of this pest from wheat using a head sampling method. At a landscape scale, we show that specific combinations of abiotic and landscape variables influence population abundance of F. fusca in North Carolina row crop agroecosystems.
Differential Acellular Reactive Oxygen Species (ROS) Generation by E-cigarettes Containing Tobacco-Free Nicotine (TFN) and Tobacco-Derived Nicotine

Tobacco Free Nicotine (TFN) Electronic Nicotine Delivery Systems (ENDS) are yet to be classified as tobacco products; consequently, there is ambiguity over whether Food and Drug Administration (FDA) regulatory authority can be extended to include TFN e-cigarettes. In recent years, a more significant number of e-cigarette companies have been manufacturing TFN-containing e-cigarettes and e-liquids to circumvent FDA regulations. While studies have shown that aerosols generated from tobacco-derived nicotine-containing e-cigarettes contain significant Reactive Oxygen Species (ROS) levels, no comparison studies have been conducted using TFN e-cigarettes. This study uses a single puff aerosol generator to aerosolize TFN and tobacco-derived nicotine-containing vape-products and subsequently involves semi-quantifying ROS generated by these vape products in H2O2 equivalents. We found that the differences between ROS levels generated from TFN and tobacco-derived nicotine-containing vape products vary by flavor. TFN tobacco flavors and fruit flavors are more toxic in terms of ROS generation than menthol/ice and drink/beverage flavored products using TFN. The type of salt nicotine used in vape products, TFN or tobacco-derived nicotine, impacts the level of ROS generated from flavored vape products. Thus, a better understanding of the type of salt nicotine used in e-cigarettes (tobacco-derived or synthetic), has modulating effect on lung oxidative stress.
GEOTECHNICAL STABILITY ANALYSIS: NEW METHODS FOR AN OLD PROBLEM

SUMMARY Geotechnical stability analysis is traditionally pe rformed by a variety of approximate methods that ar e based on the theory of limit equilibrium. Although they are sim ple and appeal to engineering intuition, these tech niques suffer from a number of serious disadvantages, not the least of which is the need to presuppose an appropriate fai lure mechanism in advance. This feature can lead to inaccurate predi ctions of the true failure load, especially for rea listic problems involving layered materials, complex loading, or th ree-dimensional deformation. A much more rigorous method for assessing the stability of geostructures became available with the adv ent of the limit (or bound) theorems of classical plasticity in the 1950s. These theorems can be used to give upper an d lower bounds on the predicted collapse load (a most valuable proper ty in practice), do not require assumptions to be m ade about the mode of failure and use only simple strength parame ters that are familiar to geotechnical engineers. Although many ingenious bound results have been derived using ana lytical or numerical methods, practical application of the limit theorems has been restricted by the need to develop specific solution strategies for each problem. Ov er the last decade, the Newcastle Geotechnical Research Group has developed powerful new methods for performing stability analysis that combine the limit theorems with finite elements and optimisation. These methods are very general and can deal with layered soil profiles, anisotropic strength charact eristics, complicated boundary conditions and compl ex loading in both two and three dimensions. Indeed, they have alread y been used to obtain new stability solutions for a wide range of practical problems including soil anchors, slopes, foundations under combined loading, excavations, tunnels, mine workings and sinkholes. This paper gives an outline of the new techniques a nd considers a number of practical applications. F uture research developments will also be highlighted.
Legislative Situation and Construction of Legal System in the Development of Culture Industry

The identification of culture industry as a pillar industry of national economy brings new opportunities to the construction of modern culture industry system in our country.For this reason,establishing and perfecting the legislative and legal system becomes an inevitable requirement for the development of culture industry.This article reviews and analyzes the legislative situation in culture industry,pointing out that the culture industry legislation in China lacks systematicness,as well as planning.Currently,the legislation has a low status and the local legislation is imperfect.An overall Promotion Law for culture industry is needed.On this basis,this article proposes speeding up the legislation for cultural industry,legalizing the current policies;strengthening fundamental legislation for cultural industry and introducing The Cultural Industry Promotion Law as quickly as possible.It is also suggested that the government promote the status of the legislation in culture-related industries,integrate local laws of cultural industry,and launch movements for the sorting out and perfecting of current laws and regulations for culture industry,to make contributions to the consistence,coordination and scientific nature of the legislation of culture industry,which provide a sound legal security for the rapid development of our cultural industry.
Determinants of Customer Intentions to Use Electric Vehicle in Indonesia: An Integrated Model Analysis

Electric vehicles can be a solution to certain social problems in Indonesia, such as pollution and an increase in consumption of energy from fossil fuels, which cannot be met by domestic production. The discussion of the TPB theoretical model, UTAUT2, and risk perception, using the structural equation modeling (SEM) method, in this study aims to provide an overview of the factors that drive interest in adopting electric vehicles in Indonesia. Data were collected from 526 respondents in various cities located in Indonesia. The results showed that the model can estimate the study variables adequately. The constructs of TPB such as attitude toward use (ATU), subjective norm (SBN), and perceived behavior control (PBC) positively affect interest in using electric vehicles. Meanwhile, ATU is influenced by performance and effort expectancies, hedonic motivation, price value, as well as functional, financial, and social risks. Another factor, known as PBC, is influenced by certain facilitating conditions. The ATU factor is the most influential on the use of electric vehicles, therefore factors such as performance expectancy, effort expectancy, hedonic motivation, price value, functional risk, financial risk, and social risk need to be properly analyzed.
Stress analysis and parameter optimization of column-shaped flexspline in harmonic drive based on ANSYS

The major failure mode of harmonic gear is flexspline's damage,so the research for flexspline's intensity of harmonic gear is an important subject.It through analyzing the stress of flexspline in theory,a conclusion is made that thickness-to-diameter ratio and barrel length L are the main factors of affecting the flexspline's intensity.And then an accurate 3-D solid model containing flexspline of gear tooth is established in Pro/E combining with examples,and is inducted to ANSYS to carry out stress analysis,afterwards the impact rule of thickness-to-diameter ratio and barrel length on flexspline's stress is obtained,based on which the flexspline's parameters are modified.Finally,curve fitting of experimental data is made using the Matlab according to the least square principle to prove the correctness of theoretical calculatio.
As Stadiums Vanish, Their Debt Lives On

The financial hole was dug over decades by politicians who passed along the cost of building and fixing the stadium, and it is getting deeper. With the razing of the old stadium and the Giantsand the Jets moving into their splashy new home next door, a big source of revenue to pay down the debt has shriveled. New Jerseyans are hardly alone in paying for stadiums that no longer exist. Residents of Seattle’s King County owe more than $80 million for the Kingdome, which was razed in 2000. The story has been similar in Indianapolis and Philadelphia. In Houston, Kansas City, Mo. , Memphis and Pittsburgh, residents are paying for stadiums and arenas that were abandoned by the teams they were built for.