bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Application of Boundary Element Method for The Solution of The Inverse Heat Conduction
Authors: Wen Jin , Xiang Ziyan , Li Longlong , Zhang Yulu , Yan Huili , Zhu Yi 
Published: March 2023

Abstract
In this paper, the general and supplementary conditions are used to determine the inverse heat conduction in the parabolic equation. The measured conditions ensure that the inverse problem has a unique solution, but the solution is not stable, so the problem is ill-posed. Using the boundary element method to discretize the original problem, it is used to solve the problem. On this basis, the direct method, the least square method and the regular method are tried. Finally, the minimal energy method is used to solve the system. Numerical experiments are carried out and the results are discussed.
Examination of Star Formation Rate enhancement in galaxy pairs selected based on data from Illstris TNG
Authors: Chen Yiru 
Published: March 2023

Abstract
Star Formation Rate (SFR) is one of the most important properties of galaxies, which offers a good insight of galaxy evolution. Generally, interactions with the small and large scale environment may affect the SFR of the galaxy. Therefore, an examination of SFR of galaxy pairs is carried out in this paper to investigate the partner galaxy impacts on the evolution process of one galaxy. Compared with isolated galaxies, the SFR of galaxy pairs is enhanced due to interactions with the large scale environment (e.g., the tidal force). This finding confirms that interactions with the large scale environment will affect the galaxy evolution process and further work can be done to examine the impacts of other interactions. These results shed light on the deeper understanding of galaxy evolution process and call on more investigation of large scale environment of the galaxy.
The impact of the dark matter on galaxy formation
Authors: Diao Junwen , Wei Shibiao , Wei Zherui , Liu Chang 
Published: March 2023

Abstract
Contemporarily, dark matter exerts dominant impacts on galaxy formation, which is the spine bone of the galaxy. Herein, we investigate the attraction effect of initial dark matter distribution on the normal matter (hydrogen and other gases), which will form the dark matter halos. Subsequently, an introduction to the properties of dark matter halos and some disputes about it are demonstrated. Besides, the cold dark matter (CDM) is chosen to fit the current observation and interpret the influences of dark matter on galaxy formation. Overall, this paper offers a clear procession of the impact of dark matter on galaxy formation, which will be guideline for future development of both galaxy formation theory as well as dark matter detection.
Longitudinal stability analysis of underwater towed body based on CFD
Authors: Liu Xianlong , Liu Cheng , Chen Cheng , Kui Haixing 
Published: March 2023

Abstract
The angle of the underwater towed body is very important when it is towed passively. The steady angle is calculated by cubic spline interpolation and CFD. Generally, in order to obtain a stable pitch angle, it is necessary to adjust the angle of the tail rudder plate. With this method, stable angle can be obtained quickly and effectively, which can be used as reference for corresponding scheme design.
Frequency Analysis of Submerged Cylindrical Shell near the Rigid Wall with Hydrostatic Pressure
Authors: Wang Peng , Niu Qingyong , Zhang Hao 
Published: March 2023

Abstract
Fluid boundary is quite common to be noted in engineering, for example, water tank, or the ocean. The tank wall could be regarded as rigid wall. Besides, for structures submerged in water, the hydrostatic pressure actually existes, and its effect is important especially for big pressure level. In this work, the rigid wall and hysrostatic pressure are both accounted, and natural frequency is predicted for submerged cylindrical shell near rigid wall with high hydrostatic pressure. Results show that rigid wall effect will reduce modal frequency. And rigid wall effect will be more and more small with increase of distance between shell and rigid wall. It’s finally be ignored while the gap is large enough. Hysrostatic pressure will also reduce modal frequency, and its influence is obvious for high pressure level.
Simulation study on passive cavitation suppression for a typical hydrofoil
Authors: Zhang Jinlan , Wang Yun , Dong Liang , Wu Jianwei , Wang Wei , Li Zhijian 
Published: March 2023

Abstract
A passive cavitation suppression structure with flow barriers on its surface was proposed for a typical hydrofoil (NACA66 MOD). Based on the homogeneous equilibrium model and the Zwart-Gerber-Belamri cavitation model, the cavitation characteristics around the hydrofoil before and after flow barriers on hydrofoil surface at a typical operating condition are simulation investigated. Results show that the flow barriers provide on hydrofoil surface are capable of regulating and controlling the cavitation flow field, suppressing 47.1 percent of cavitation flow. By coupling the distribution of cavitation shape, re-entrant jet and pressure field of the hydrofoil with fluid flowing around, and analysing the periodic change of flow field, it is found that to a certain extent, the flow barrier provided on hydrofoil suction surface inhibited the development and shedding of cavitation.
CFD analysis and prediction of centrifugal pump cavitation performance based on three-dimensional two-phase flow between impeller and worm gear
Authors: Ma Shi , Liu Yiou 
Published: March 2023

Abstract
Cavitation performance is an important performance indicator of centrifugal pumps. The occurrence of cavitation will trigger a complex gas-liquid two-phase flow, which will reduce the efficiency of a low ratio centrifugal pump and cause machine vibration, as well as damage to the impeller, seriously affecting the working performance and preventing its normal operation. In this paper, CFD numerical simulation is used to analyze the cavitation characteristics of a centrifugal pump, obtain its internal flow law, calculate the cavitation margin of the device and the head generated by the pump under each inlet condition, and thus predict the critical cavitation margin of the pump at this flow point.
Modeling of Micro-downburst accompanied with rain and analysis of its influence on artillery firing accuracy
Authors: Wang Jin , Tian Junwei , Zhang Zhen , Lei Xiaoming , Sun Guangyu , Guo Xiaodan 
Published: March 2023

Abstract
The characteristics of wet micro burst are more complex, which will cause some deviation on the artillery range, side deviation and other parameters, and have a great influence on the artillery shooting accuracy. Taking 155 mm artillery explosive shell as the research object, based on vortex ring principle and fluid mechanics, the micro-downburst and raindrop motion model was established, which was integrated into the wet micro-downburst model suitable for ballistic analysis and calculation. The wet micro-downburst model was combined with the 6-DOF external ballistic model of artillery. Simulation and analysis of the effect of different initial vortex ring center induced velocity on the firing accuracy of flat firing and curved firing. The experimental results show that for long-range firing, the range of the artillery decreases with the increase of the induction velocity of the initial vortex ring center, which seriously affects the firing accuracy and killing effect of the artillery.
Analysis of Dynamic Performance of Synchronous Double Proportional Valve Based on Digital Simulation
Authors: Cai Biaohua , Zhang Maosen , Hu Qiuxu , Zhang Zheng , Shi Zhaocun 
Published: March 2023

Abstract
The dynamic characteristic parameters of the synchronous dual-proportional pressure integrated valve are of great significance to its research. Among them, the outlet pressure tracking error and the flow resistance characteristics of the internal flow field have a great influence on the dynamic characteristics of the valve. The tracking error of the valve under specific working conditions is analyzed by means of digital simulation, and the flow resistance characteristics of the internal flow field are further obtained.
Production of fuels by pyrolysis of waste plastics: technical notes
Authors: Kafle Saroj Raj , Gaire Pragati , Tuladhar Nerisha 
Published: March 2023

Abstract
This paper described the plant scale catalytic process of the plastic waste materials in order to obtain an alternative fuel from three plastic wastes Polypropylene (PP), Polystyrene (PS) and Polyethylene (PE). Pyrolysis is the thermochemical decomposition of plastics at elevated temperatures (in absence or little supply of oxygen) into a range of useful products: gas, liquid, and solid residue. These waste have plastics consisting of PP, PE and PS, are first sorted manually and crushed by using crusher and finally feed in the reactor enclosed in the burner maintaining the reaction temperature about 500°C. Nitrogen gas is used to create inert environment and for fluidization in reactor. The produced cracked gas is now sent to be condensed to a condenser followed by the series of cyclone separator and electrostatic precipitator then finally feed into the liquid vapor separator. The plastic pyrolysis plant is design of capacity 3.2 tons of plastics each day, obtained 80% gaseous fuel and 7% Liquid and remaining as residue. The variation of yield of the products according to increase in temperature is also shown in this paper.
Numerical Investigation of Flow Behaviour and Erosion Potential in the Side-Wall Clearance Between Guide Vane and Runner
Authors: Pandey A , Gautam S , Chitrakar S , Acharya N , Bijukchhe P L 
Published: March 2023

Abstract
In the hydropower plants exposed to excessive sediment concentration, the components of Francis turbines, especially the regions of Guide Vanes (GVs) and Runner Vanes (RVs) are severely eroded. The side-wall clearance between GV and runner is present in these turbines to separate the rotating and stationary components. The height difference between the runner inlet and GV outlet covers, introduced during the fabrication or assembly process might play a crucial role in accelerating the erosion process in these components. This study is focused on numerical analysis of simplified geometries that replicate different scenarios of the height difference and consequent flow behaviour in the side-wall clearance of Francis turbines. The numerical analysis is done in OpenFOAM using the available solver adopting the finite volume method (FVM). The numerical study is compared with the experimental results obtained from Rotating Disc Apparatus (RDA). The numerical analysis shows the vortex formation in the side-wall clearance region which traps the sediment particles. Such vortex formation causes erosion in the region. The vortex formation and flow behaviour in different height difference scenarios vary with each other and so does the erosion pattern in the experimental results.
Structural conductive carbon nanotube nanocomposites for stretchable electronics
Authors: Ahn Jaekyeong , Noh Seunghwan , Kim Danbi , Kim Bo-Seok , Kim Sejung , Song Youngjun 
Published: March 2023

Abstract
Carbon nanotube (CNT) nanocomposites have been widely used for electronic devices because of their high conductivity and ease of processing. However, these nanocomposites have limited functionality because of their rigid intrinsic mechanical properties. In this study, we fabricated a stretchable serpentine structure using a CNT nanocomposite with a carboxymethyl cellulose binder. For a flexible mold, a polydimethylsiloxane (PDMS) was cast by the stretchable serpentine structure fabricated by a 3D printer. The CNT nanocomposite slurry was squeegeed into the serpentine-patterned PDMS mold. Fourier-transform infra-red spectroscopy and scanning electron microscopy were used to analyze the material properties of the nanocomposites with 15–45 wt% CNTs. We analyzed the serpentine grid structure using current-voltage curves, strain resistance values, and the Joule heating effect. Next, we developed the structural CNT nanocomposite electrode (SCNE) that was insulated by PDMS, and induced a skin-warming effect by Joule heating. Furthermore, light emitting diodes (LEDs) were implanted in series into a T-shaped linear SCNE, which had greater stretchability. The nine LEDs embedded in the SCNE were successfully operated by applying 20 V during the bending of the structure. Finally, the serpentine-shaped linear SCNEs with serially-implanted LEDs were programmed to light the LEDs in unison with the beat of a song.
Does Cash Really Mean Trash? An Empirical Investigation into the Effect of Retailer Price Promotions on Household Food Waste
Authors: van Lin Arjen , Aydinli Aylin , Bertini Marco , van Herpen Erica , von Schuckmann Julia 
Published: March 2023

Abstract
Retailer price promotions, and in particular multi-unit deals such as the ubiquitous “buy one, get one,” are often criticized as a cause of food waste, presumably because they lure households into buying more than they can realistically consume. In this research, the authors combine field data and experiments to provide the first systematic test of this claim. The field data, which span eight frequently purchased perishable foods, show no evidence of a positive relationship between single-unit or multi-unit price promotions and food waste. In fact, households that took advantage of a multi-unit deal reported wasting less than did households paying regular prices (RPs), but only when the quantity purchased was larger than usual. Given this result, and that households also reported consuming and freezing more, the authors hypothesize that promotion-induced overbuying triggers a concern for food waste that encourages waste prevention. One experiment finds support for this mechanism. A second experiment shows that the effect on food waste concerns is moderated by perishability and versatility but unaffected by convenience and healthiness. Overall, then, this research invites regulators and other professionals to rethink their stance on price promotions and work with retailers to design smart campaigns that motivate waste awareness and management.
Definitions and Conceptualizations of the Practice Context in the Health Professions: A Scoping Review
Authors: Thomas Aliki , Rochette Annie , George Catherine , Iqbal Muhammad Zafar , Ataman Rebecca , St-Onge Christina , Renaud Jean-Sébastien 
Published: March 2023

Introduction:
Health care professionals work in different contexts, which can influence professional competencies. Despite existing literature on the impact of context on practice, the nature and influence of contextual characteristics, and how context is defined and measured, remain poorly understood. The aim of this study was to map the breadth and depth of the literature on how context is defined and measured and the contextual characteristics that may influence professional competencies.

Methods:
A scoping review using Arksey and O'Malley's framework. We searched MEDLINE (Ovid) and CINAHL (EBSCO). Our inclusion criteria were studies that reported on context or relationships between contextual characteristics and professional competencies or that measured context. We extracted data on context definitions, context measures and their psychometric properties, and contextual characteristics influencing professional competencies. We performed numerical and qualitative analyses.

Results:
After duplicate removal, 9106 citations were screened and 283 were retained. We compiled a list of 67 context definitions and 112 available measures, with or without psychometric properties. We identified 60 contextual factors and organized them into five themes: Leadership and Agency, Values, Policies, Supports, and Demands.

Discussion:
Context is a complex construct that covers a wide array of dimensions. Measures are available, but none include the five dimensions in one single measure or focus on items targeting the likelihood of context influencing several competencies. Given that the practice context plays a critical role in health care professionals' competencies, stakeholders from all sectors (education, practice, and policy) should work together to address those contextual characteristics that can adversely influence practice.
Advancing Teamwork in Health Care Through Continuing Education Joint Accreditation
Authors: Kawczak Steven , Fernandez Anthony P. , Mooney Molly 
Published: March 2023

Abstract:
Teamwork is a necessity for effective care of patients in the current health care environment. Continuing education providers are best positioned to teach health care professionals about teamwork. However, health care professionals and continuing education providers largely operate in single-profession–based environments and thus need to change their programs and activities to achieve team improvement education goals. Joint Accreditation (JA) for Interprofessional Continuing Education is designed to advance teamwork to improve quality care through education programs. However, achieving JA requires significant changes to an education program that are multifaceted and complex to implement. Although challenging, implementation of JA is an effective way to advance interprofessional continuing education. Here, we discuss numerous practical strategies that can aid education programs to prepare for and achieve JA, such as attaining organizational alignment and provider adaptation to expand curriculums, reinventing the education planning process, and implementing tools to help manage the joint accredited program.
Comparison of oxycodone and sufentanil in patient-controlled intravenous analgesia for postoperative patients: a meta-analysis of randomized controlled trials
Authors: Feng Xixia , Yang Pingliang , Liao Zaibo , Zhou Ruihao , Chen Lu , Ye Ling 
Published: March 2023

Abstract

Background:
Managing acute postoperative pain is challenging for anesthesiologists, surgeons, and patients, leading to adverse events despite making significant progress. Patient-controlled intravenous analgesia (PCIA) is a recommended solution, where oxycodone has depicted unique advantages in recent years. However, controversy still exists in clinical practice and this study aimed to compare two drugs in PCIA.

Methods:
We performed a literature search in PubMed, Embase, the Cochrane Central Register of Controlled Trials, Web of Science, Chinese National Knowledge Infrastructure, Wanfang, and VIP databases up to December 2020 to select specific randomized controlled trials (RCTs) comparing the efficacy of oxycodone with sufentanil in PCIA. The analgesic effect was the primary outcome and the secondary outcome included PCIA consumption, the Ramsay sedation scale, patients’ satisfaction and side effects.

Results:
Fifteen RCTs were included in the meta-analysis. Compared with sufentanil, oxycodone showed lower Numerical Rating Scale scores (mean difference [MD] = −0.71, 95% confidence interval [CI]: −1.01 to −0.41; P < 0.001; I
2 = 93%), demonstrated better relief from visceral pain (MD = −1.22, 95% CI: −1.58 to −0.85; P < 0.001; I
2 = 90%), promoted a deeper sedative level as confirmed by the Ramsay Score (MD = 0.77, 95% CI: 0.35–1.19; P < 0.001; I
2 = 97%), and resulted in fewer side effects (odds ratio [OR] = 0.46, 95% CI: 0.35–0.60; P < 0.001; I
2 = 11%). There was no statistical difference in the degree of patients’ satisfaction (OR = 1.13, 95% CI: 0.88–1.44; P = 0.33; I
2 = 72%) and drug consumption (MD = −5.55, 95% CI: −14.18 to 3.08; P = 0.21; I
2 = 93%).

Conclusion:
Oxycodone improves postoperative analgesia and causes fewer adverse effects, and could be recommended for PCIA, especially after abdominal surgeries.

Registration:
PROSPERO; https://www.crd.york.ac.uk/PROSPERO/; CRD42021229973.
Global burden prediction of gastric cancer during demographic transition from 2020 to 2040
Authors: Yan Chao , Shan Fei , Ying Xiangji , Li Ziyu 
Published: March 2023

Abstract

Background:
Despite the decline in the incidence and mortality rates of gastric cancer (GC), the impact of demographic transition on the global burden of GC remains unclear. The current study aimed to estimate the global disease burden through 2040 by age, sex, and region.

Methods:
GC data for incident cases and deaths by age group and sex were taken from The Global Cancer Observatory (GLOBOCAN) 2020. The incidence and mortality rates were predicted through 2040 by fitting a linear regression model over the most recent trend period with the Cancer Incidence in Five Continents (CI5) data.

Results:
The global population will grow to 9.19 billion by 2040, accompanied by increasing population ageing. The incidence and mortality rates of GC will show a persistent decrease, with an annual percent change of –0.57% for males and –0.65% for females. East Asia and North America will have the highest and lowest age standardized rates, respectively. A slowdown in the growth of incident cases and deaths will be observed worldwide. The proportion of young and middle-aged individuals will decline, while the percentage of the elderly will increase, and the number of males will be almost twice the number of females. East Asia and high human development index (HDI) regions will be heavily burdened by GC. East Asia had 59.85% of the new cases and 56.23% of deaths in 2020; these will increase to 66.93% and 64.37% by 2040, respectively. The interaction between population growth, the change in ageing structure and the decline in incidence and mortality rates will lead to an increased burden of GC.

Conclusions:
Ageing and population growth will offset the decline in the incidence and mortality rate of GC, resulting in a substantial increase in the number of new cases and deaths. The age structure will continue to change, especially in high HDI regions, requiring more targeted prevention strategies in the future.
Laser Ablation of Pilonidal Sinus Disease: A Pilot Study
Authors: Williams Michael D. , Sullivan Gwynneth A. , Nimmagadda Neha , Gulack Brian C. , Madonna Mary Beth , Hayden Dana M. , Govekar Henry , Shah Ami N. 
Published: March 2023

BACKGROUND:
Pilonidal disease is classically treated with a wide local excision, though a number of minimally invasive approaches are currently under investigation. We aimed to determine the safety and feasibility of laser ablation of pilonidal sinus disease.

IMPACT OF INNOVATION:
Laser ablation provides a minimally invasive means of obliterating pilonidal sinus tracts without a need for excessive tract dilation. Laser ablation can be performed more than once on the same patient if necessary.

TECHNOLOGY MATERIALS AND METHODS:
We used the NeoV V1470 Diode Laser (NeoLaser LTD, Caesarea, Israel) with a 2 millimeter probe. We performed laser ablation in adults and pediatric patients.

PRELIMINARY RESULTS:
We performed 27 laser ablation procedures in 25 patients, with a median operative time of 30 minutes. Eighty percent of patients reported either no pain or mild pain at 2-week postoperative visit. Median time to return to work or school was 3 days. Eight-eight percent of patients reported being satisfied or very satisfied with the procedure at their most recent follow-up (median, 6 months). Eighty-two percent of patients were healed at 6 months.

CONCLUSIONS AND FUTURE DIRECTIONS:
Laser ablation of pilonidal disease is safe and feasible. Patients experienced short recovery time, and reported low levels of pain and high levels of satisfaction.