bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation and thermal conduction mechanism of highly thermally conductive PA6/Al2O3/GNP composites via dynamic reactive blending
Authors: Wu Fangjuan , Ji Caofeng , Huang Haitao , Zhong Huolin , Fang Hui 
Published: February 2025

AbstractHighly thermally conductive polyamide 6 (PA6)/aluminum oxide (Al2O3)/graphene nanoplatelet (GNP) composites were fabricated through dynamic reactive blending. By utilizing the synergistic effect of low viscosity monomer and dynamic shear, uniform dispersion of Al2O3 and GNP in the PA6 matrix was achieved, forming efficient thermal conductive networks. Structural and morphological analyses confirmed the homogeneous dispersion of fillers and good interfacial bonding characteristics. The results showed that when Al2O3 and GNP contents were 43 and 7 wt%, respectively, the thermal conductivity reached 2.71 W/m·K, representing a 984% enhancement over neat PA6 and a 45.7% improvement compared to melt‐blended composites. The P‐S theoretical model was employed to understand the underlying mechanism, showing good agreement between theoretical calculations and experimental results. LED heat dissipation tests demonstrated excellent thermal response characteristics and temperature stability of the composites in practical thermal management applications, indicating their promising potential in electronic cooling applications.Highlights
Dynamic reactive blending was used to prepare thermal conductive composites.
Low viscosity of monomer and dynamic shear promoted uniform dispersion of fillers.
The composites showed thermal conductivity of 2.71 W/m·K, 984% higher than neat PA6.
P‐S model showed enhanced parallel effect reduced interfacial thermal resistance.
Composites demonstrated effective heat dissipation in LED thermal management tests.
Ballistic performance analysis of PBO fiber‐reinforced epoxy composites through resin matrix rigidity and toughness modulation
Authors: Peng Xuejiao , He Huiwen , Liu Yulong , Ma Meng , Shi Yanqin , Zhu Yulu , Chen Si , Wang Xu 
Published: February 2025

AbstractThe rigidity and toughness of the resin matrix significantly influence the impact resistance of ballistic composites. However, the relationship between the properties of the resin matrix and the ballistic performance of the composites remains inadequately defined. In this study, the ballistic performance of composites with various matrix resins was investigated to assess how matrix toughness affects energy absorption. A series of epoxy resins exhibiting different rigidity and toughness were combined with PBO (poly‐p‐phenyl‐2,6‐benzobisoxazole) fibers, and their quasi‐static mechanical properties were evaluated to analyze their effectiveness in resisting ballistic impacts. In ballistic test, the brittle matrix composite demonstrated concentrated fiber breakage and localized damage, while the toughened matrix composite exhibited more dispersed damage characterized by reduced fiber breakage and minimal delamination, suggesting enhanced energy absorption via deformation within the matrix. Compared with the specific energy absorption value of the brittle matrix composite material, which is only 9.28 Jm2/kg, the specific energy absorption value of the tough matrix composite material has increased by 125% to 20.88 Jm2/kg. These findings underscore the critical role that matrix toughness plays in improving ballistic‐resistant performance by facilitating better energy distribution while mitigating fiber damage.Highlights
Matrix toughness significantly enhances ballistic energy absorption in composites.
Toughened matrix reduces fiber breakage and delamination under ballistic impact.
Toughened matrix composite achieves a 125% higher specific energy absorption.
Findings offer insights for designing high‐performance ballistic‐resistant materials.
Micro‐scale fiber/matrix stress concentrations in unidirectional glass/carbon hybrid composites under transverse loading
Authors: Turan Ecem , Guerrero García José Manuel , Lomov Stepan V. , Sabuncuoglu Baris 
Published: February 2025

AbstractFiber/matrix interface stresses and micro‐scale stress concentrations (SCs) under transverse loading were analyzed for hybrid composites, reinforced with glass and carbon fibers. A finite element model was implemented using parametric modeling technique to determine the stresses in the matrix and fiber/matrix interface. Several micro‐scale finite element models were generated for the analyses with various combinations of fiber material, fiber size, volume ratio and fiber spatial distribution models. Models with single fiber type (non‐hybrid composites) were also analyzed to understand the hybridization effect on the stresses. The results reveal the effect of the presence of different fiber types and their arrangement on the micro‐scale stress distributions and fiber/matrix interface behavior. Under transverse loading, when the same type of fibers are aligned with the loading direction, the SCs on the stiffer fibers are larger than the case in the composite with the single stiffer fiber type. When these fibers are aligned with the direction perpendicular to the loading, the SCs on the stiffer fibers are lower. Fiber material type was more effective than the fiber size and fiber volume ratio enhances the effect of hybridization on the stress distributions. According to the authors' knowledge this is the first study investigating the transverse SCs in hybrid composites at the micro‐scale level.Highlights
Different representative volume elements (RVE) used: triple, hexagonal, random.
Transverse loading, and shear loading studied and results are given.
Combined effects of some parameters are investigated.
Stress concentration (SC) distributions are calculated and compared in each case.
Mobile Phone Addiction, Self‐Control, Mind Wandering, and Cognitive Failure in Chinese Adolescents: A Network Analysis and a Chain Mediation Model
Authors: Li Jiayi , Lu Aitao , Ye Liwen , Chen Guoping , Ling Hong , Chen Wanyi , Zhong Yingjie , An Yuening , Ke Xiayao 
Published: February 2025

ABSTRACTMobile phone addiction (MPA) has become a prevalent issue among adolescents, which is closely associated with cognitive failure. The present study seeks to explore the network structure of the association between MPA and cognitive failure among adolescents by network analysis, as well as the mediating roles of self‐control and mind wandering by chain mediation techniques. Data were collected from 1036 Chinese adolescents using self‐report measures. Results of the network analysis, based on the bridge strength, showed that “Distractibility” and “Productivity Loss” at the domain level, as well as the two nodes of cognitive failure and one node of MPA (i.e., “Do you daydream when you ought to be listening to something?”, “Do you start doing one thing and get distracted into doing something else (unintentionally)?”, and “You find yourself engaged on the mobile phone for longer period of time than intended.”) at the item level were the bridge indicators between MPA and cognitive failure. The chain mediation analysis demonstrated that the relation between MPA and cognitive failure was mediated by self‐control and mind wandering separately and sequentially. These findings highlight the importance of enhancing adolescents’ self‐control in reducing the negative impact of MPA on cognitive functioning.
Parent‐Reported Usability of a Patient Portal‐Based Asthma Care Tool for Parents of Children With Asthma
Authors: Ross M. K. , Clark E. J. , Chan W. , Kafashzadeh D. , Radparvar I. , Gao E. , Gomez A. , Tran M. , Sim M. S. , Rong G. , Friedman S. , Szilagyi P. G. , Ryan G. , Bui A. A. T. 
Published: February 2025

ABSTRACTIntroductionThis study evaluates our new EHR‐integrated patient portal for asthma care (PAC) management module for parents of children with asthma. The module includes a previsit asthma intake questionnaire via the portal. The parent answers are integrated into the provider's clinic progress note to support clinical decision‐making. Our goals were to measure the functionality and usability of the PAC module and to understand facilitators and barriers to its use for parents.MethodsParents of children ages 0–11 years old (n = 45) completed the PAC module's asthma intake questionnaires prior to their upcoming pediatric pulmonology clinic visit. To assess functionality, provider progress notes were manually reviewed to measure the amount of key asthma‐related data captured. Differences in percent data captured with and without the PAC module were compared. Electronic surveys capture demographics, usability data (the System Usability Scale [SUS]), and open‐ended experiential feedback about the module. Analysis included descriptive statistics for demographics and usability, as well as the constant comparative method for open‐ended feedback.ResultsThe PAC module at this early stage of design significantly improved the capture of key asthma data in physician notes, increasing from 77% to 92% (p < 0.001). The average SUS score (83.8) indicated high usability. Favorable aspects of the module that were identified included time savings and ease of use.ConclusionOur PAC module enhanced data capture of key asthma management elements and demonstrated high parental usability. We will continue to refine the module through an iterative approach based on end‐user feedback, with future expansion planned for broader patient populations.
Electronic Noise Considerations for Designing Integrated Solid‐State Quantum Memories
Authors: Huang Tzu‐Yung , Hopper David A. , Omirzakhov Kaisarbek , Idjadi Mohamad Hossein , Breitweiser S. Alexander , Aflatouni Firooz , Bassett Lee C. 
Published: February 2025

AbstractAs quantum networks expand and are deployed outside research laboratories, a need arises to design and integrate compact control electronics for each memory node. It is essential to understand the performance requirements for such systems, especially concerning tolerable levels of noise, since these specifications dramatically affect a system's design complexity and cost. Here, using an approach that can be easily generalized across quantum‐hardware platforms, a case study based on nitrogen‐vacancy (NV) centers in diamond is presented. The effects of phase noise and timing jitter in the control system in conjunction are modeled and experimentally verified with the spin qubit's environmental noise. The impact of different phase noise characteristics on the fidelity of dynamical decoupling sequences is also considered. The results demonstrate a procedure to specify design requirements for integrated quantum control signal generators for solid‐state spin qubits, depending on their coherence time, intrinsic noise spectrum, and required fidelity.
Quantum Repeater Protocol for Deterministic Distribution of Macroscopic Entanglement
Authors: Pyrkov Alexey N. , Lazarev Ilia D. , Byrnes Tim 
Published: February 2025

AbstractDistributing long‐distance entanglement is a fundamental goal that is necessary for a variety of tasks such as quantum communication, distributed quantum computing, and quantum metrology. Currently quantum repeater schemes typically aim to distribute one ebit at a time, the equivalent of one Bell pair's worth of entanglement. Here, a scheme is presented to distribute a macroscopic amount of entanglement across long‐distances using a number of operations that scales only linearly with the chain length in the ideal case (without decoherence). The scheme involves ensembles of qubits and entangling them with an interaction, which can be realized using atomic gas ensembles coupled by a shared optical mode. Using only local measurements on the intermediate ensembles, this leaves the ensembles at the ends of the chain entangled. It is showed that there are particular “magic” interaction times that allow for distribution of entanglement with perfect fidelity, with no degradation with chain length. The scheme is deterministic, such that with suitable local conditional unitary corrections, the same entangled state can always be prepared with good approximation.
Detection of Unknown Functional Departure in Generalized Functional Regression
Authors: Chen Mengkun , Kim Inyoung 
Published: February 2025

ABSTRACTDetecting statistical differences among functional dataset or streaming signal dataset is of interest to many diverse fields, including neurophysiology, imaging, biomedical engineering, and public health. For example in our study, our interest is to provide the guideline for detecting the lowest drug dosage level for glioblastoma as quickly as possible in which the intensity functional curves are different among dosage groups. However, such functional data often have unknown and nonlinear massive correlated curves that lead to difficulties in detecting their significant differences without explicit likelihood functions. Existing detecting procedures mainly test a linear, quadratic, or specific parametric form of departure and require explicit likelihood functions due to estimating specific models. In this paper, we propose a flexible detecting method to test any unknown functional departure in a generalized functional regression without estimating models. We develop our detecting method under a generalized semiparametric functional model framework in which the explicit likelihood function does not exist. We develop our detecting method using the approximated Bayes factor, a score‐type test, and the estimating equations. The decision of rejecting (or not) the null hypothesis is made using the Frequentist p‐values. We also studied the asymptotic properties of our method. We compare our detecting method to the alternative method regarding the type‐I error and power under various simulation settings. We demonstrate the advantages of our method by applying two real datasets: functional data of drug‐exposed glioblastoma cell line and diffusion tensor imaging tractography.
Operative System for Strategic Sustainable Development—Coordinating Analysis, Planning, Action, and Use of Supports Such as the Sustainable Development Goals, Planetary Boundaries, Circular Economy, and Science‐Based Targets
Authors: Broman Göran Ingvar , Robèrt Karl‐Henrik 
Published: February 2025

ABSTRACTThe number of sustainability supports keeps growing. However, they are typically not capable of bridging planetary‐to‐organizational scales and therefore in themselves provide limited guidance for how organizations can contribute strategically to global sustainability. This is severe since the power of change that organizations represent is essential for humanity to succeed with the transition to sustainability. Furthermore, a specific sustainability support typically lacks a clear description of what gap it is designed to fill. This may add confusion to an already complex area and can result in organizations selecting supports that are not the most appropriate for the organization's purpose and transition plan. The aim of this study was therefore to prototype an approach for SWOT analyses of sustainability supports and for guiding effective and coordinated use of them. We tested the approach for some examples of supports that are currently receiving much attention: the sustainable development goals, planetary boundaries, circular economy, and science‐based targets. We argue that the tested approach can be generalized and makes it possible to clarify limitations and value of any support from a systemic, systematic, and strategic sustainability perspective and, therefore, also to clarify how the supports relate to each other and can be selected and used in an effective and coordinated way. This is similar to how an operative system of, say, a smartphone, facilitates an effective and coordinated use of apps. We argue that the presented approach addresses one of the most dangerously, still most commonly, missed pieces in public and private discourses on sustainability.
Electrocatalytic Oxidation of Nanofiltration Concentrated Landfill Leachate with High‐efficiency Ti/RuO2‐IrO2‐Pt 8% Anode
Authors: Zhu Yunqing , Dong Gaigai , Wan Xuequan , Ji Minghui , Zhang Linbo , Wang Hanlin 
Published: February 2025

AbstractThe treatment of nanofiltration concentrate has always been a critical technical challenge in the application of membrane technology for landfill leachate treatment. This study attempts to address this challenge using electrocatalytic oxidation technology. A Pt‐modified Ti/RuO2‐IrO2 anode was synthesized using a solution method. The results show that Pt was uniformly dispersed within the Ru‐Ir composite oxide phase, and Pt doping induced the formation of numerous disordered and mismatched lattices on the electrode coating surface. The interaction between Pt and the RuO2‐IrO2 system can enhance the stability of the ternary composite electrode, improve electron transport efficiency, and reduce surface resistance of the electrode coating, thereby increasing the efficiency of chemical reactions. In the treatment of nanofiltration concentrate of landfill leachate, it was found that under conditions of a current density of 20 mA·cm−2, electrode distance of 0.5 cm, and pH = 5, the removal rates of COD, TOC, and NH4+‐N were 93.5%, 46%, and 98% respectively, with an energy consumption of only 0.66 kWh·(kg TOC)−1. After 20 repeated experiments, the Ti/RuO2‐IrO2‐Pt 8% anode also demonstrated good stability and catalytic activity.
PVP‐I Catalyzed Hydroxysulfurization of α‐(Trifluoromethyl)‐Styrenes with Thiols: Access to Trifluoromethyl Tertiary Alcohol
Authors: Zeng Qian‐Ding , Yuan Xinxin , Wang Jian , Yao Hongmiao , Zeng Bu‐Bing , Ren Jiangmeng , Yang Wu‐Lin 
Published: February 2025

AbstractAn efficient method for the synthesis of β‐hydroxy‐β‐CF3‐thioether has been developed, utilizing povidone‐iodine (PVP‐I) as a recyclable catalyst and air as the oxidant. The reaction proceeded smoothly at room temperature, yielding the desired β‐hydroxy‐β‐CF3‐thioether in moderate to good yields. This method can be scaled up to gram‐scale without losing any reaction efficiency. The catalyst was also recyclable up to 8 repetitions. The reaction mechanism was investigated and plausible reaction pathway was proposed.
Efficient Synthesis of 3,3′‐Spirooxindole γ‐Butyrolactone via Rongalite‐Mediated Domino Reductive Aldol and Spiro‐Lactonization Reactions
Authors: Chaudhari Suryakant S. , Nichinde Chandrakant B. , Patil Baliram R. , Girase Amardipsing S. , Kinage Anil K. 
Published: February 2025

AbstractIn this study, we develop a novel methodology involving rongalite‐mediated domino reductive/aldol reaction, followed by spiro‐lactonization of 2‐oxoindolin‐3‐ylidene acetates/malonates in presence of base to synthesis of 3,3′‐spirooxindole γ‐butyrolactone. The detail study, such as effect of solvent, effect of different base and substrate has been carried out. Scale up of this methodology is also done. Sodium hydroxymethanesulfinate dihydrate (rongalite) concurrently has a dual role in this context; it acts as a reducing agent as well as C1 synthon. This approach offers several advantages, such as being metal‐ and catalyst‐free, involving a simple reaction protocol, having a wide substrate scope, using water as a green solvent, and providing good to excellent yields of the products under mild reaction conditions.
Palladium Nanocubes with {100} Facets for Hydrogen Evolution Reaction: Synthesis, Experiment and Theory
Authors: Saldan Ivan , Moumaneix Lilian , Umer Muhammad , Pavlinak David , Rihova Martina , Kolibalova Eva , Petrus Josef , Kallio Tanja , Vandichel Matthias , Macak Jan M. 
Published: February 2025

AbstractSpatially separated palladium nanocubes (Pd NCs) terminated by {100} facets are synthesized using direct micelles approach. The stepwise seed‐mediated growth of Pd NCs is applied for the first time. The resulting Pd NCs are thoroughly characterized by HR‐TEM, XPS, Raman, ATR‐FTIR, TGA, and STEM‐EDX spectroscopies. Some traces of residual stabilizer (polyvinylpyrrolidone, PVP) attached to the vertices of Pd NCs are identified after the necessary separation‐washing procedure, however, it is vital to avoid aggregation of the NCs. Pd NCs are subsequently and uniformly loaded on Vulcan carbon (≈20 wt.%) for the electrochemical hydrogen cycling. By post‐mortem characterizations, it is revealed that their shape and size remained very stable after all electrochemical experiments. However, a strong effect of the NCs size on their hydrogen interaction is revealed. Hydrogen absorption capacity, measured as the H:Pd ratio, ranges from 0.28 to 0.48, while hydrogen evolution and oxidation reactions (HER and HOR) kinetics decrease from 15.5 to 4.6 mA.mg Pd−1 between ≈15 and 34 nm of Pd NCs, respectively. Theoretical calculations further reveal that adsorption of H atoms and their penetration into the Pd lattice tailors the NCs electronic structure, which in turn controls the kinetics of HER, experimentally observed by the electrochemical tests. This work may pave the way to the design of highly active electrocatalysts for efficient HER stable for a long reactive time. In particular, obtained results might be transferred to active Pd‐alloy‐based NCs terminated by {100} facets.
Compatible Interfaces Constructed by Surficial Indiumization on Garnet Solid Electrolyte for Long‐Cycling All‐Solid‐State Lithium Metal Battery
Authors: Zhou Xiaoming , Ouyang Zejian , Liu Jin , Liu Fangyang , Zhang Zongliang , Lai Yanqing , Li Jie , Jiang Liangxing 
Published: February 2025

AbstractComposite solid electrolytes (CSEs) based on poly(vinylidene fluoride)‐co‐hexafluoropropylene (PVDF‐HFP) and Li6.4La3Zr1.4Ta0.6O12 (LLZTO) show great potential in building high energy density all‐solid‐state lithium metal batteries (ASSBs). Nevertheless, the Li2CO3 passivation layer formed on the LLZTO surface not only induces dehydrofluorination of PVDF‐HFP but also blocks Li+ transport at the interfaces of PVDF‐HFP/LLZTO and CSE/electrodes. Herein, lithium acetate‐assisted surficial indiumization with a thickness of 4 nm is carried out to convert the detrimental Li2CO3 into a stable Li+ conductor of LiInO2 (LIO) on LLZTO. With this modification, high air stability of CSEs is achieved which prevents Li2CO3 regeneration and PVDF‐HFP dehydrofluorination effectively. Attributed to the unblocked Li+ transport paths at the LLZTO@LIO/PVDF‐HFP (LIO‐CSE) interface, high ionic conductivity of 3.1 × 10−4 S cm−1 and the Li+ transference number of 0.673 are attained. The Li2CO3‐free LLZTO also contributes to constructing robust solid electrolyte interphase with predominantly inorganic components, which successfully decreases the side reactions and ultimately realizes good compatibility at the LLZTO/polymer and electrolyte/electrode interfaces. The assembled Li|LIO‐CSE|Li cells exhibit excellent electrochemical stability for 3100 h at 0.5 mA cm−2. The Li/LIO‐CSE/LiFePO4 ASSB delivers high‐capacity retention of 81.8% after 1000 cycles at 25 °C. This work provides a promising method toward remarkable interfacial compatibility for ASSBs.