bluuebunny/crossref_metadata_2025_split huggingface dataset:
Decoupling and Coupling Simulation Analysis in Small Nuclear Power Plant
Authors: Tian Peiyu , Li Yi , Xing Tianyang , Liang Tiebo , Wang Changshuo 
Published: April 2023

AbstractAs the development of computer science technology and the requirement of thorough research, more researchers are setting their eyes on coupling method because of the tight coupling in NPP (nuclear power plant) system. However there were few researches studying the difference between decoupling and coupling methods and the importance of coupling method. This research respectively establishes the primary and secondary loop decoupling models and the two loops coupling model based on the small NPP by APROS. Then the differences between the decoupling and coupling models is studied under the steady state and dynamic state which contains the ramp load variation and load shedding. The results show that there are small differences between these models in the main parameter values under the steady state. But the differences between decoupling models and coupling model are large. Therefore the NPP system needs be modeled by coupling method as to study its dynamic characteristic.
Study on the 3-D Natural Circulation Characteristics of LFR Under Steady State by Using Ansys Fluent
Authors: Dai Jianing , Yan Yulin , Li Erhao , Gong Zhengyu , Zhang Ling , Gu Zhixing 
Published: April 2023

AbstractAs one of the Generation IV reactors, Lead-based Fast Reactor (LFR) has been considered to be great promising owing to its advantages in nuclear safety, sustainable development of nuclear energy and nuclear waste disposal. Owing to the excellent thermal expansion characteristics of Lead-based coolant materials, the primary cooling system of LFR can operate in natural circulation driven mode. The CFD (Computational Fluid Dynamics)-based thermal-hydraulics and safety analyses of nuclear reactors, especially liquid metal pool-type reactors have attracted great attentions in recent years. In this paper, the entire 3-D geometric model of a 10 MWth natural circulation driven LFR primary cooling system was established and simulated by ANSYS Fluent, in which the mesh was partitioned by utilizing structured meshing technology, and the porous medium model was utilized to fine the reactor core simulation. The results showed that the above LFR can operate safely in natural circulation mode, and has excellent natural circulation characteristics for the primary cooling system.
Study and Resolution of Pressurizer Pressure Great Fluctuation Problem in CRP1000 RGL04 Test
Authors: Wang Kai , Li Bing-wen , Zhou Ming-jia , Hu You-sen , Mao Yu-long 
Published: April 2023

AbstractRGL04 Test is the highest risky test during CPR1000 power operation,which is difficult to control the state and easily results in house load, turbine trip and reactor trip. Pressurizer pressure great fluctuation problem has occurred in some of CPR1000 units, and the pressure exceeds the allowed operation range during test transient. The paper discusses the reason of the problem and the resolution is given: according to the different overheating degree of core, groups of on-off heater are actuated, or the proper power reduction rate is chosen to satisfy the operation requirement.
Research on Public Communication of Small Reactor
Authors: Zhu Rongxu , Zhao Feng , Zhang Xiaofeng , Guo Jiandi , Zhang Meng 
Published: April 2023

AbstractBased on the conclusions of small reactor environmental impact assessment and social stability risk assessment of small reactors, this paper conducts a special study on the public communication of small reactors. This article discusses the work content, scope and form of public communication of small reactor, and give suggestions on the scope and form of public publicity, public participation and information disclosure. It is matched with small reactor public communication theoretical system and operation manual.The research on the public communication work of small reactor can provide necessary theoretical basis and technical support for the specific public communication work of small reactor. Provide decision support for local policies and construction departments to implement public communication. It is hoped that this study can provide some reference for the public communication of small reactors in the exploratory stage.
Numerical Simulation of the Transient Flow Characteristics and Thermal Stratification Phenomena in the Passive Residual Heat Removal System of NHR-200-II
Authors: Geng Yiwa , Liu Xiongbin 
Published: April 2023

AbstractThe NHR-200-II nuclear heating reactor is a multi-purpose small integral pressurized water reactor (iPWR) developed by the Institute of Nuclear and New Energy Technology (INET) of Tsinghua University. The design of NHR-200-II features a reactor core with thermal power of 200MW, in-vessel hydraulically-driven control rods and passive residual heat removal (PRHR) systems, et.al. Passive residual heat removal experiments were conducted in a scaled integral test facility for NHR-200-II. The PRHR experiments in the scaled facility were simulated by a layered RELAP5 system model to study the flow characteristics of the PRHR system in different primary fluid temperatures and different valve states. The phenomenon of reversed flow occurred in some primary heat exchangers in the numerical simulations when the primary fluid temperature was higher than certain level, which was consistent to the experiments. The simulated uneven outlet temperature distribution of the primary heat exchangers was also consistent with the experimental data when the isolation valves for the steam generator was kept open. Thermal stratification effect in the headers of the PRHR system played an important role in the phenomenon of uneven outlet temperature distributions, and the layered RELAP5 model was proven to be an efficient method for preliminary estimation of thermal stratification effect in the headers.
Research on the Optimization of Commercial PWR’S Financial Evaluation Model
Authors: Bo Meifang , Zheng Baojun , Zhang Shengli , Ren Zhengxu , Liu Bojie 
Published: April 2023

AbstractConsidering industry standards, policies, market environment, actual costs of nuclear power plants (NPPs) and technical characteristics of nuclear power, and combining with industrial circumstances when these industry standards were published, we analyzed the limitations of current commercial PWR’s fianancial evaluation methods. Taking HPR1000 as a case study, we deeply estimated the generation cost and cash flow. Moreover, optimization direction of the financial evaluation model after comparative analysis was proposed. This research aims to provide reference to similar NPPs’financial evaluation and basis of investment decision-making for investors, owners and general contractors.
On neutrino-mediated potentials in a neutrino background
Authors: Blas Diego , Esteban Ivan , Gonzalez-Garcia M. C. , Salvado Jordi 
Published: April 2023

Abstract
The exchange of a pair of neutrinos with Standard Model weak interactions generates a long-range force between fermions. The associated potential is extremely feeble, ∝ $$ {G}_F^2/{r}^5 $$

G
F
2

/

r
5

for massless neutrinos, which renders it far from observable even in the most sensitive experiments testing fifth forces. The presence of a neutrino background has been argued to induce a correction to the neutrino propagator that enhances the potential by orders of magnitude. In this brief note, we point out that such modified propagators are invalid if the background neutrino wavepackets have a finite width. By reevaluating the 2-ν exchange potential in the presence of a neutrino background including finite width effects, we find that the background-induced enhancement is reduced by several orders of magnitude. Unfortunately, this pushes the resulting 2-ν exchange potential away from present and near-future sensitivity of tests of new long-range forces.
Making Palladio Digitally Explicit: Geometrical Parameters in Door’s Ornaments
Authors: Giovannini Elisabetta Caterina 
Published: April 2023

AbstractThe Book I of Andrea Palladio's "The Four Books on Architecture", in which, after a brief discourse on the five orders and on those rules which are essential to building, private houses, streets, bridges, squares, xysti, and temples are discussed, contains the rules of Palladio's design. Over the years, many scholars have investigated how to make explicit the reasoning on the theory of architectural proportions in Palladio. A multitude of studies were done concerning five orders proportions and about the compositive rules of Villas. This ongoing research aims to make the treatise of Andrea Palladio explicit visually and mathematically by starting from his text and images. The study, at this stage, concentrates on proportional and graphical analysis for door’s ornaments. The study made it possible to identify the molding elements’ philological construction and the relationship between their geometric construction made up of alignments, recurring intervals, equal subdivisions, and successive partitions.
Bombus terrestris terrestris (Linnaeus, 1758) and hybrids with the endemic Bombus xanthopus spotted on Capraia Island (Tuscan Archipelago, Italy): some conservation management implications
Authors: Boni Chiara Benedetta , Coppola Francesca , Quaranta Marino , Giannini Francesca , Felicioli Antonio 
Published: April 2023

AbstractExpansion of wild and managed allochthonous species leads to potential negative consequences for the endemic wildlife, such as resource competition, pathogens spread, hybridization and native species replacements. On Capraia Island, the last sighting of Bombus terrestris terrestris dates back to 1917. All subsequent surveys carried out on the island only reported the presence of B. xanthopus and B. pascuorum melleofacies with B. t. terrestris apparently no longer existing in the area. In 2021 B. t. terrestris was again detected on the island raising two main hypotheses: (i) B. t. terrestris has always been present with a low population density, such as not to be detected in previous investigations, or (ii) its presence is the result of a more recent recolonization. The recolonization event may be promoted by either intentional or unintentional introduction or it may be the result of a natural migration from the mainland or surrounding islands. Hybridization between B. t. terrestris × B. xanthopus on Capraia Island has been also ascertained by the detection of hybrid queens, workers and males. These new finding provides insight on the distribution range of B. t. terrestris in the Tuscan Archipelago and raise concern on the conservation of the endemic B. xanthopus population.
Patients in high- and low-revision hospitals have similar outcomes after primary knee arthroplasty: 1-year postoperative results from the Danish prospective multicenter cohort study, SPARK
Authors: Mørup-Petersen Anne , Krogsgaard Michael Rindom , Laursen Mogens , Madsen Frank , Winther-Jensen Matilde , Odgaard Anders 
Published: April 2023

Abstract
Purpose
It is well-known that revision rates after primary knee arthroplasty vary widely. However, it is uncertain whether hospital revision rates are reliable indicators of general surgical quality as defined by patients. The SPARK study compared primary knee arthroplasty surgery at three high-volume hospitals whose revision rates differed for unknown reasons.

Methods
This prospective observational study included primary knee arthroplasty patients (total, medial/lateral unicompartmental and patellofemoral) in two low-revision hospitals (Aarhus University Hospital and Aalborg University Hospital Farsø) and one high-revision hospital (Copenhagen University Hospital Herlev-Gentofte). Patients were followed from preoperatively (2016–17) to 1-year postoperatively with patient-reported outcome measures including Oxford Knee Score (OKS), EQ-5D-5L and Copenhagen Knee ROM (range of motion) Scale. The surgical outcomes were compared across hospitals for patients with comparable grades of radiographic knee osteoarthritis and preoperative OKS. Statistical comparisons (parametric and non-parametric) included all three hospitals.

Results
97% of the 1452 patients who provided baseline data (89% of those included and 56% of those operated) responded postoperatively (90% at 1 year). Hospitals’ utilization of unicompartmental knee arthroplasties differed (Aarhus 49%, Aalborg 14%, and Copenhagen 22%, p < 0.001). 28 patients had revision surgery during the first year (hospital independent, p = 0.1) and were subsequently excluded. 1-year OKS (39 ± 7) was independent of hospital (p = 0.1), even when adjusted for age, sex, Body Mass Index, baseline OKS and osteoarthritis grading. 15% of patients improved less than Minimal Important Change (8 OKS) (Aarhus 19%, Aalborg 13% and Copenhagen 14%, p = 0.051 unadjusted). Patients with comparable preoperative OKS or osteoarthritis grading had similar 1-year results across hospitals (OKS and willingness to repeat surgery, p ≥ 0.087) except for the 64 patients with Kellgren–Lawrence grade-4 (Aarhus 4–6 OKS points lower). 86% of patients were satisfied, and 92% were “willing to repeat surgery”, independent of hospital (p ≥ 0.1). Hospital revision rates differences diminished during the study period.

Conclusions
Patients in hospitals with a history of differing revision rates had comparable patient-reported outcomes 1 year after primary knee arthroplasty, supporting that surgical quality should not be evaluated by revision rates alone. Future studies should explore if revision rate variations may depend as much on revision thresholds and indications as on outcomes of primary surgery.

Level of evidence
Level II (Prospective cohort study).
Health impact of borders: general reflections and a case study from the Polish–German border
Authors: Kuntosch Julia , Ruebsam Marie-Luise , Orsson Jakub , Orsson Dorota , Hahnenkamp Klaus , Hartleib Jörg , Flessa Steffen 
Published: April 2023

Abstract
Background and objective
Political, economic, communicative and cultural borders still limit the accessibility of acute healthcare services for patients so that they frequently have to accept longer distances to travel to the next provider within their own country. In this paper, we analyze the impact of borders and opening of borders on acute medical care in hospitals and on patients in border regions.

Methods
We develop a conceptual framework model of cross-border healthcare and apply it to the Polish–German border area. The model combines the distance decay effect, a catchment area analysis, economies of scale and the learning curve.

Results
Borders have a major impact on acute medical care in hospitals and on patients. Setting of new borders will reduce the accessibility of health facilities for patients or require the establishment of new hospitals. Reopening borders might induce a vicious circle leading to the insolvency of a hospital which might result in poorer health for some patients.

Conclusion
Strong effort should be invested to overcome political and cultural borders to improve the health of the population in border regions. Similarly, increased cross-border acute healthcare must be seen in the context of rural health and the special situation of small rural hospitals in rural peripheral areas.
Application of UPLC-MS/MS Method for Analysis of Apigenin, Apigenin 7-Glucoside and Chlorogenic Acid in Goat Serum
Authors: Karaźniewicz-Łada Marta , Wójtowski Jacek Antoni , Główka Franciszek , Danków Romualda , Pikul Jan , Gryszczyńska Agnieszka , Foksowicz-Flaczyk Joanna , Mikołajczak Przemysław Łukasz 
Published: April 2023

AbstractUPLC-MS/MS method was developed for determination of bioactive compounds including chlorogenic acid (CA), apigenin (AP) and apigenin 7-glucoside (AP7G) in goat serum. The analytes were separated on Kinetex C18 analytical column and a mobile phase consisting 0.1% formic acid in water and methanol with gradient elution. Detection of analytes was performed using a triple quadrupole mass spectrometer with electrospray ionization in positive mode. The lower limit of quantitation was 0.5 ng mL–1 for AP and AP7G and 2.5 ng mL–1 for CA. The inter- and intra-day precision of the method expressed as relative standard deviation was in the range of 1.22–14.5%. The accuracy of the method expressed as the relative error was in the range of 0.147–14.6%. The extraction recoveries of the compounds were 76.2–89.5%. The validated method was successfully applied for analysis of the compounds in the serum of sixty goats, half of which were fed with fodder with the addition of an herbal mixture. The higher concentration values of all analyzed compounds were reported in the serum of the animals fed with herbs compared to the control group receiving standard fodder.
Sustainable successes in third-party food delivery operations in the digital platform era
Authors: Chan Hau-Ling , Cheung Ting-Ting , Choi Tsan-Ming , Sheu Jiuh-Biing 
Published: April 2023

AbstractIn the digital era, third-party food delivery operations are very popular all around the world. However, to achieve a sustainable operation for food delivery businesses is a challenging issue. Motivated by the fact that there is a lack of consolidated view towards the topic in the literature, we conduct a systematic literature review to identify how to achieve a sustainable operation for third-party food delivery and highlight the recent advances in this important area with the discussion of real-world practices. In this study, first, we review the relevant literature and apply the triple bottom line (TBL) framework to classify prior studies into economic sustainability, social sustainability, environmental sustainability, and multi-dimensional sustainability. We then identify three major research gaps, including inadequate investigation on the restaurant’s preferences and decisions, superficial understanding on the environmental performance, and limited examination on the multi-dimensional sustainability in the third-party food delivery operations. Finally, based on the reviewed literature and observed industrial practices, we propose five future areas that deserve an in-depth further investigation. They are namely applications of digital technologies, behaviors and decisions of the restaurants, risk management, TBL, and post-coronavirus pandemic.
Target parameters and bias in non-causal change-score analyses with measurement errors
Authors: Sjölander Arvid , Gabriel Erin E. , Ciocănea-Teodorescu Iuliana 
Published: April 2023

AbstractIn studies where the outcome is a change-score, it is often debated whether or not the analysis should adjust for the baseline score. When the aim is to make causal inference, it has been argued that the two analyses (adjusted vs. unadjusted) target different causal parameters, which may both be relevant. However, these arguments are not applicable when the aim is to make predictions rather than to estimate causal effects. When the scores are measured with error, there have been attempts to quantify the bias resulting from adjustment for the (mis-)measured baseline score or lack thereof. However, these bias results have been derived under an unrealistically simple model, and assuming that the target parameter is the unadjusted (for the true baseline score) association, thus dismissing the adjusted association as a possibly relevant target parameter. In this paper we address these limitations. We argue that, even if the aim is to make predictions, there are two possibly relevant target parameters; one adjusted for the baseline score and one unadjusted. We consider both the simple case when there are no measurement errors, and the more complex case when the scores are measured with error. For the latter case, we consider a more realistic model than previous authors. Under this model we derive analytic expressions for the biases that arise when adjusting or not adjusting for the (mis-)measured baseline score, with respect to the two possible target parameters. Finally, we use these expressions to discuss when adjustment is warranted in change-score analyses.
Fostering Friendship and Dating Skills Among Adults on the Autism Spectrum: A Randomized Controlled Trial of the Polish Version of the PEERS® for Young Adults Curriculum
Authors: Płatos Mateusz , Wojaczek Kinga , Laugeson Elizabeth A. 
Published: April 2023

AbstractPEERS® for Young Adults is an evidence-based program aimed at teaching social skills needed to establish and maintain close relationships, including friendship and romantic relationships. The study investigated the effects of the Polish adaptation of the curriculum on the social functioning of adults on the autism spectrum. Fifteen young adults (aged 18–32, M = 23.5) were randomly allocated to an immediate or delayed (control) treatment condition. By self and parent report, individuals who participated in the PEERS® program showed significant improvements in social skills, social cognition, and social knowledge, but limited gains in social engagement. The effects were maintained over six months after the treatment. The intervention was well-accepted and deemed feasible by young adults, their parents, and peers involved in the program.
Thermodynamic Data for Sn(IV) Species in Aqueous Solution: A Matter of Controversy and Error
Authors: May Peter M. , Filella Montserrat 
Published: April 2023

AbstractCritically assessed data regarding Sn(IV) dioxides and hydroxy complexes have recently been challenged. Differences as large as nine orders of magnitude occur in certain of the published solubility products and other equilibrium constants, despite supposedly being derived from the same ‘reliable’ measurements. We show how these differing conclusions depend on the assignments of uncertainty in the respective experimental observations and that the divergence is due to error propagation in identifiable thermodynamic analyses. The use of Sn4+ as a ‘basis’/‘master’ species in thermodynamic modelling is deprecated. Automatic methods which enable the necessary calculations to be properly evaluated, as well as easily repeated, help uncover such mistakes. The results from the comprehensive NEA review are substantially confirmed.