mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Feature Selection Using Tree Model and Classification Through Convolutional Neural Network for Structural Damage Detection

Structural damage detection (SDD) remains highly challenging,due to the difficulty in selecting the optimal damage features from a vast amount of information.In this study,a tree model-based method using decision tree and random forest was employed for feature selection of vibration response signals in SDD.Signal datasets were obtained by numerical experiments and vibration experiments,respectively.Dataset features extracted using this method were input into a convolutional neural network to determine the location of structural damage.Results indicated a 5% to 10% improvement in detection accuracy compared to using original datasets without feature selection,demonstrating the feasibility of this method.The proposed method,based on tree model and classification,addresses the issue of extracting effective information from numerous vibration response signals in structural health monitoring.
Evaluation of neutron cross sections of ~(48)Ti based on the Unified-Monte-Carlo-B method

A cross section evaluation of neutron induced reactions on ~(48)Ti is undertaken using the Unified Monte Carlo-B (UMC-B) approach.The evaluation concentrates on estimating the covariance and the use of the UMC-B allows avoiding the deficiencies of linear regression brought by the traditional least squares method.Eight main neutron and charged particle emission reactions from n+~(48)Ti in the fast neutron energy region below 20 MeV are studied in this work.The posterior probability density function (PDF) of each neutron cross section is obtained in a UMC-B Bayesian approach by convoluting the model PDFs sampled based on model parameters and the likelihood functions for the experimental data.Nineteen model parameters including level density,pair corrections,optical model and Kalbach matrix element parameter are stochastically sampled with the assumption of normal distributions to estimate the model uncertainty.The Cholesky factorization approach is applied to consider potential parameter correlations.Finally,the posterior covariance matrices are generated using the UMC-B generated weights.The new evaluated results are compared with the CENDL-3.2,ENDF/B-VIII.0,JEFF-3.3,TENDL-2021 and JENDL-5 evaluations and differences are discussed.
Changes of tropical cyclone size in three oceanic basins of the northern hemisphere from 2001 to 2021

In this study the changes of tropical cyclone (TC) size from 2001 to 2021 are analyzed based on linear and quadratic curve fittings of the National Hurricane Center (NHC)/Joint Typhoon Warning Center (JTWC) best track data, based on the radius of maximum wind (RMW) and the average radius of 34-kt wind (AR34), in three oceanic basins of the North Atlantic (NATL), the Western North Pacific (WPAC) and the Eastern North Pacific (EPAC). The computations are done separately for two categories of tropical cyclones: tropical storms (TS) and hurricanes (HT). Size changes of landfalling and nonlandfalling TCs are also discussed. Results show that there is a great inter-basin variability among the changes in TC sizes. Major conclusions include: 1) overall, the inner cores of TSs have become larger in all three basins, with the increasing tendencies being significant in the NATL and WAPC, while those of HTs mostly get smaller or remain similar; 2) meanwhile, comparatively large interbasin differences are observed for the TC outer core sizes, and the sizes of landfalling TCs; 3) particularly, a significant decrease in landfalling HT outer core size is observed over the EPAC; 4) in contrast, significant increases in landfalling TS inner core size are found over the NATL and WPAC. The presented analysis results could benefit future research about TC forecasts, storm surge studies, and the cyclone climate and its changes.
Unified method for typical gear failure modeling and stiffness calculation based on the matrix equation

The failure types in gear systems vary, with typical ones mainly including pitting, cracking, wear, and broken teeth. Different modeling and stiffness calculation methods have been developed for various gear failure types. A unified method for typical gear failure modeling and stiffness calculation is introduced in this study by considering the deviations in the time-varying meshing stiffness (TVMS) of faulty gears resulting from the use of different methods. Specifically, a gear tooth is discretized into a large number of microelements expressed with a matrix, and unified models of typical gear failures are built by adjusting the values of the matrix microelements. The values and positions of the microelements in the tooth failure model matrix have the same physical meaning as the parameter variables in the potential energy method (PEM), so the matrix-based failure model can be perfectly matched with PEM. Afterward, a unified method for TVMS is established. Modeling of healthy and faulty gears with pitting, wear, crack, and broken tooth is performed with the matrix equation, and the corresponding TVMS values are calculated by incorporating the matrix models with PEM. On the basis of the results, the mechanism of typical fault types that affect TVMS is analyzed, and the conclusions are verified through the finite element method. The developed unified method is a promising technique for studying the dynamic response characteristics of gear systems with different failure types because of its superiority in eliminating stiffness deviations.
Photocatalytic degradation of methylene blue over MIL-100(Fe)/GO composites:a performance and kinetic study

Adsorption coupled with photocatalytic degradation is proposed to fulfill the removal and thorough elimination of organic dyes.Herein,we report a facile hydrothermal synthesis of MIL-100(Fe)/GO photocatalysts.The adsorption and photocatalytic degradation process of methylene blue (MB) on MIL-100(Fe)/GO composites were systematically studied from performance and kinetic perspectives.A possible adsorption-photocatalytic degradation mechanism is proposed.The optimized 1M8G composite achieves 95% MB removal (60.8 mg/g) in 210 min and displays well recyclability over ten cycles.The obtained MB adsorption and degradation results are well fitted onto Langmuir isotherm and pseudo-second order kinetic model.This study shed light on the design of MOFs based composites for water treatment.
Non-Invasive Self-Adaptive Information States’ Acquisition inside Dynamic Scattering Spaces

Pushing the information states’ acquisition efficiency has been a long-held goal to reach the measurement precision limit inside scattering spaces. Recent studies have indicated that maximal information states can be attained through engineered modes; however, partial intrusion is generally required. While noninvasive designs have been substantially explored across diverse physical scenarios, the non-invasive acquisition of information states inside dynamic scattering spaces remains challenging due to the intractable non-unique mapping problem, particularly in the context of multi-target scenarios. Here, we establish the feasibility of non-invasive information states’ acquisition experimentally for the first time by introducing a tandem-generated adversarial network framework inside dynamic scattering spaces. To illustrate the framework’s efficacy, we demonstrate that efficient information states’ acquisition for multi-target scenarios can achieve the Fisher information limit solely through the utilization of the external scattering matrix of the system. Our work provides insightful perspectives for precise measurements inside dynamic complex systems.
A High-Concentration Edge-Nitrogen-Doped Porous Carbon Anode via Template Free Strategy for High-Performance Potassium-Ion Hybrid Capacitors

Developing facile and economical strategies to fabricate nitrogen-doped porous carbon anode is desirable for dual-carbon potassium ion hybrid capacitors (PIHCs).Here,a high-concentration edge-nitrogen-doped porous carbon (NPC) anode is synthesized by a template-free strategy,in which the total content of pyrrolic nitrogen and pyridinic nitrogen accounts for more than 80% of the nitrogen atoms.As a result,the NPC anode displays a capacity of 315.4 mA h g~(-1) at a current rate of 0.1 A g~(-1) and 189.1 mA h g~(-1) at 5 A g~(-1).Ex situ characterizations and density functional theory calculations demonstrate the high-concentration edge-nitrogen doping enhances K~+ adsorption and electronic conductivity of carbon materials,resulting in good electrochemical performance.The assembled NPC//CMK-3 PIHC delivers an energy density of 71.1 W h kg~(-1) at a power density of 771.9 W kg~(-1) over 8,000 cycles.
Subpicosecond laser ablation behavior of a magnesium target and crater evolution: Molecular dynamics study and experimental validation

The micro-ablation processes and morphological evolution of ablative craters on single-crystal magnesium under subpicosecond laser irradiation are investigated using molecular dynamics(MD) simulations and experiments. The simulation results exhibit that the main failure mode of single-crystal Mg film irradiated by a low fluence and long pulse width laser is the ejection of surface atoms, which has laser-induced high stress. However, under high fluence and short pulse width laser irradiation, the main damage mechanism is nucleation fracture caused by stress wave reflection and superposition at the bottom of the film. In addition, Mg[0001] has higher pressure sensitivity and is more prone to ablation than Mg[1010]. The evolution equation of crater depth is established using multi-pulse laser ablation simulation and verified by experiments. The results show that, under multiple pulsed laser irradiation, not only does the crater depth increase linearly with the pulse number, but also the quadratic term and constant term of the fitted crater profile curve increase linearly.
成年起病的甲基丙二酸血症1例报道

甲基丙二酸血症(MMA)属常染色体隐性遗传性疾病,主要由甲基丙二酰辅酶A变位酶(MCM)缺陷及其辅酶钴胺素(维生素B12)代谢障碍导致机体三羧酸循环及氧化磷酸化障碍,使代谢产物甲基丙二酸、丙酸及甲基枸橼酸等异常蓄积,从而引起神经、肝脏、肾脏等多系统损害。MMA多见于婴幼儿,成年起病罕见。山东省第二人民医院神经内科曾收治1例发病年龄为44岁的MMA患者,现总结其诊疗经过并进行文献复习,以期为临床同道提供参考借鉴。
Towards robustness and generalization of point cloud representation: A geometry coding method and a large-scale object-level dataset

Robustness and generalization are two challenging problems for learning point cloud representation. To tackle these problems, we first design a novel geometry coding model, which can effectively use an invariant eigengraph to group points with similar geometric information, even when such points are far from each other. We also introduce a largescale point cloud dataset, PCNet184. It consists of 184 categories and 51,915 synthetic objects, which brings new challenges for point cloud classification, and provides a new benchmark to assess point cloud cross-domain generalization. Finally, we perform extensive experiments on point cloud classification, using ModelNet40, ScanObjectNN, and our PCNet184, and segmentation, using ShapeNetPart and S3DIS. Our method achieves comparable performance to state-ofthe- art methods on these datasets, for both supervised and unsupervised learning.
Respiratory Viruses and Mycoplasma Pneumoniae Surveillance Among Hospitalized Children with Acute Respiratory Infections - Wuhan City, Hubei Province, China, September-November 2023

What is already known about this topic? Acute respiratory infections(ARIs) are a significant contributor to illness and death in children. There has been a notable rise in the occurrence of ARIs and the associated pathogens in China, which has garnered worldwide attention. What is added by this report? This study conducted a retrospective analysis of the clinical characteristics of children with ARIs in Wuhan City from September to November 2023. The study evaluated the epidemiological patterns of common respiratory viruses and Mycoplasma pneumoniae(MP), revealing a continued prevalence of MP and a growing trend of influenza. Our findings emphasize that the circulation of respiratory viruses and MP has not returned to pre-pandemic levels, underscoring the importance of enhancing surveillance for respiratory pathogens. What are the implications for public health practice? The epidemiology of ARIs and the pathogens involved need to be emphasized. This highlights the importance of developing policies to protect children from respiratory pathogens such as MP, influenza, and respiratory syncytial virus.
Tribological properties of PTFE-based fabric composites at cryogenic temperature

Fabric composites are widely employed in self-lubricating bearing liners as solid lubrication materials. Although the tribological behaviors of fabric composites have been extensively studied, the cryogenic tribological properties and mechanisms have been scarcely reported and are largely unclear to instruct material design for aerospace and other high-tech applications. Herein, the tribological properties of polytetrafluoroethylene (PTFE)-based hybrid-fabric composites were investigated at cryogenic and ambient temperatures in the form of pin-on-disk friction under heavy loads. The results suggest that the friction coefficients of the hybrid-fabric composites obviously increase with a decrease in wear when the temperature drops from 25 to -150 °C. Moreover, thermoplastic polyetherimide (PEI), as an adhesive for fabric composites, has better cryogenic lubrication performance than thermosetting phenol formaldehyde (PF) resin, which can be attributed to the flexible chemical structure of PEI. The excellent lubrication performance of hybrid-fabric composites is attributed to the transfer film formed by PTFE fibers on the surface of fabrics.
脑出血后血肿周围水肿不同影像参数与临床预后的研究进展

血肿周围水肿(PHE)是脑出血后主要的继发性脑损伤,与患者的功能预后紧密相关。大量的研究表明,PHE是一个可量化指标且越来越多地作为评估脑出血后继发性损伤的放射学标记物,与脑出血患者的短期或长期功能预后显著相关。PHE被认为是脑出血后一个有希望的治疗靶点,然而不同研究对PHE的测量参数不同,从而导致其对脑出血预后的影响存在一定差异,因此有必要对已有的PHE不同影像参数进行分类、比较和总结。本综述从影像学角度探讨PHE不同评估参数的优点和局限性及其对脑出血患者预后的影响,旨在为临床治疗脑出血后继发性脑损伤提供更精准的指导,以减轻PHE并促进急性脑出血后的神经功能恢复。
尿感方对尿道致病性大肠杆菌毒力特征的影响

目的探讨尿感方对尿道致病性大肠杆菌毒力特征的影响。方法以CFT073作为实验菌株,通过细菌生长培养,观察尿感方含药尿液对CFT073生长的影响。分别采用体外持留模型、微孔板法、平板法、ELISA法和RT-PCR法检测尿感方含药尿液对CFT073持留能力、生物膜形成、泳动能力、内毒素释放水平、侵袭力和毒力相关基因(fur、chuA、iha、fyuA、glt S、glt P、fimH和Lex A)的影响。结果与未经干预的CFT073比较,经空白尿液干预后的CFT073生长能力、持留能力、生物膜形成、泳动能力、侵袭力、内毒素释放水平和毒力相关基因mRNA表达均无明显差异(P>0.05);与经90%空白尿液干预后的CFT073比较,经90%尿感方含药尿液干预后的CFT073生长受到抑制(P<0.05);与经60%空白尿液干预后的CFT073比较,经60%尿感方含药尿液干预后的CFT073持留能力、生物膜形成、泳动能力、侵袭力和内毒素释放水平降低(P<0.05, P<0.01),毒力相关基因fur、chuA、iha、fyuA、glt S、glt P、fimH、Lex A mRNA表达下调(P<0.05, P<0.01)。结论尿感方可降低CFT073的持留能力、泳动能力和侵袭力,抑制生物膜的形成和内毒素的释放,下调毒力相关基因fur、chuA、iha、fyuA、glt S、glt P、fimH、Lex A mRNA表达,影响CFT073的毒力特征。
颈部挫伤并发甲状腺上动脉破裂致咽喉后壁血肿1例

颈部挫伤致甲状腺上动脉破损导致咽喉后壁血肿的发生率不高,一旦损伤,持续性出血进行性加重,形成血肿压迫周围器官,对患者来说可能造成致命性的损伤,可在短期内造成气道梗阻。马丽晶等提出咽后壁血肿“三联征”包括上气道梗阻、气管前移和颈部瘀斑。早期了解判断病情,对于闭合性颈部外伤进行性血肿压迫气道者、2度呼吸困难进行性加重者、尤其甲状腺肿大或甲状腺肿物气管切开困难者,应该积及时开放气道,预防呼吸困难引起窒息。呼吸道保持通畅后,便于对患者有计划检查治疗,制定合理的治疗计划。血肿较小无明显气道压迫者可以采取保守治疗,Senthuran等报道血肿可以在2~4周内吸收。若血肿进行性增大,则建议积极通过手术清除血肿并放置负压引流。术中应注意保护颈部重要神经及血管组织结构,彻底止血,清理血肿,雾化吸入,每日通过负压吸引管冲洗咽喉血肿腔,观察有无新鲜出血。负压吸引管可以放置两个,便于将腔内陈旧血块冲洗干净,预防减少感染发生率。术后鼻饲饮食,加强营养,密切观察呼吸、吞咽情况,如有新鲜出血量多及时行手术探查及止血至关重要。在积极抢救治疗同时,重视多学科合作治疗,有效降低死亡率。
Magneto-optic Kerr Effect Measurement of TbMn6Sn6 at mK Temperature

Novel electron states stabilized by Coulomb interactions attract tremendous interests in condensed matter physics.These states are studied by corresponding phase transitions occurring at extreme conditions such as mK temperatures and high magnetic field.In this work,we introduce a magneto-optical Kerr effect measurement system to comprehensively explore these phases in addition to conventional transport measurement.This system,composed of an all-fiber zero-loop Sagnac interferometer and in situ piezo-scanner inside a dilution refrigerator,operates below 100 mK,with a maximum field of 12Tesla and has a resolution as small as 0.2 μrad.As a demonstration,we investigate TbMn6Sn6,where the manganese atoms form Kagome lattice that hosts topological non-trivial Dirac cones.We observed two types of Kerr signals,stemming from its fully polarized ferromagnetic ground state and positive charged carriers within the Dirac-like dispersion.
Formation and properties of a Zr-based amorphous coating by laser cladding

(Zr_(0.53)Al_(0.1)Ni_(0.05)Cu_(0.3)Ti_(0.02))_(99)Y_1 (at%) coating with amorphous layer of about 180 µm thick was prepared on a steel substrate by using laser cladding method. The coating is compact and shows good metallurgical bonding with substrate. The microstructure, microhardness and corrosion behavior along the depth from the coating surface to the substrate were investigated. It is found that a gradient structure consisted of amorphous surface layer, amorphous-crystalline transitional layer and substrate is formed after the laser cladding. The microhardness and corrosion behavior exhibit variation with the microstructural evolution at different depths from the coating surface. The microhardness and corrosion resistance in 3.5 wt% NaCl solution of the amorphous surface layer are comparable to those of the as-cast Zr-based BMG with the same composition, and higher than those of the steel substrate.
Effects of soil crust on the collapsing erosion of colluvial deposits with granite residual soil

Collapsing erosion is a unique phenomenon commonly observed on the granite residue hillslopes in the tropical and subtropical regions of southern China, characterized by its abrupt occurrence and significant erosion volumes. However, the impacts of soil crust conditions on the erosion of colluvial deposits with granite residual soils have only been studied to a limited extent. To address this issue, this study investigates the impacts of three soil crust conditions (i.e., without crust, 10-minute crust, and 20-minute crust) on gully morphology, rainfall infiltration, and runoff and sediment yield during slope erosion of colluvial deposits with granite residues (classified as Acrisols) in Yudu County, Ganzhou City, Jiangxi Province, China, using simulated rainfall tests and photographic methods. The results showed that as the strength of the soil crust increased, the capacity of moisture infiltration and the width and depth of the gully as well as the sediment concentration and yield ratio decreased; at the same time, the runoff ratio increased. The sediment yield in the without-crust test was found to be 1.24 and 1.43 times higher than that observed in the 10-minute crust and 20-minute crust tests, respectively. These results indicate that soil crusts can effectively prevent slope erosion and moisture infiltration, while providing valuable insights for the management of soil erosion in natural environments.
Pannexins in the musculoskeletal system: new targets for development and disease progression

During cell differentiation, growth, and development, cells can respond to extracellular stimuli through communication channels. Pannexin (Panx) family and connexin (Cx) family are two important types of channel-forming proteins. Panx family contains three members (Panx1-3) and is expressed widely in bone, cartilage and muscle. Although there is no sequence homology between Panx family and Cx family, they exhibit similar configurations and functions. Similar to Cxs, the key roles of Panxs in the maintenance of physiological functions of the musculoskeletal system and disease progression were gradually revealed later. Here, we seek to elucidate the structure of Panxs and their roles in regulating processes such as osteogenesis, chondrogenesis, and muscle growth. We also focus on the comparison between Cx and Panx. As a new key target, Panxs expression imbalance and dysfunction in muscle and the therapeutic potentials of Panxs in joint diseases are also discussed.
不同体位下盆底训练对男性压力性尿失禁患者盆底肌肌力的影响

前列腺术后尿失禁(post- prostatectomy incontinence, PPI)是根治性前列腺术后会立即出现的疾病。由于术后多伴有压力性尿失禁(stress urinary incontinence,SUI),给广大老年男性带来了烦恼。影响SUI机制有3个因素,分别是尿道功能、尿道的支持和达到节制所采取的措施,其中,尿道功能中的最大尿道闭合压(maximum urethral closure pressure,MUCP)是SUI患者中最密切的相关参数。
乳酸脱氢酶A在乳腺癌中的作用

乳腺癌是具有高度异质性和复杂性的代谢疾病,主要通过Warburg效应进行细胞代谢重编程。乳酸脱氢酶A是Warburg效应的关键酶,在乳腺癌增殖、迁移、酸性微环境形成、免疫逃逸等方面发挥着关键作用。因此,笔者就乳酸脱氢酶A的结构、位置、功能及其在乳腺癌中的作用机制进行总结,着重讨论其在乳腺癌临床诊断、治疗和预后中的潜在意义,并提出乳酸脱氢酶A可作为抑制乳腺癌增殖和侵袭的新靶点。
Improving flangeability of multiphase steel by increasing microstructural homogeneity

Multiphase microstructure significantly increases the strength, usually at the expense of flangeability because of lacking microstructure homogeneity. To further improve the strength-flangeability of multiphase steel, the microstructural homogeneity was advanced by adjusting the hard martensite/austenite (M/A) islands. The strength-flangeability was measured via uniaxial tensile tests and hole expansion tests. Their microstructures were characterized using a scanning electron microscope equipped with an electron backscatter diffraction detector and a transmission electron microscope. Nanoindentation tests were supplementally used to quantitatively reveal the microstructural homogeneity of the steels. Results show that the adjusted multiphase steel achieves an excellent ultimate tensile strength (~ 800 MPa) and flangeability (~ 135% hole expansion ratio). A promising homogeneous multiphase microstructure was obtained by controlling undercooled austenite transformed at about 600 ℃. This microstructure consists of soft polygonal ferrite, blocky bainitic ferrite, and hard M/A islands. The volume fraction of M/A islands is around 5%, and the average size is less than 1 µm. Detailed nanoindentation analysis indicated that the participation of M/A islands impressively influenced the microstructural homogeneity. Weakened strain partition and better mechanical compatibility were present in the adjusted multiphase steel since the plasticity initiation started late, which resulted in a positive flangeability. Moreover, avoiding M/A islands distributed in the chain along the rolling direction on the matrix hindered the possibility of voids coalescing into cracks and stabilized the flanging performance.
First Record of Middle Eocene Elephant Ancestors' Footprints in the Gonjo Basin, East Tibet Plateau

It is the first time that the fossil footprints of a group of Middle Eocene elephant ancestors have been discovered in the Gonjo Basin, East Tibet Plateau. The Gonjo Formation is attributed to the Middle Eocene Epoch(U-Pb age = 44.7 ± 1.2 Ma) and consists mainly of purplish-red, medium- to coarse-grained sandstones, siltstones interbedded with mudstones, and conglomerates with sedimentary structures like ripple marks, rip-up clasts, and trough-cross bedding, suggesting fluvial-lacustrine systems. The group of fossil footprints has a characteristic oval-concave shape, and the toe impressions are absent. Some fossil footprints are overstepped with a pockmarked texture resembling Proboscipeda enigmatica. More than 165 fossil footprints of the group are relatively well-preserved with different diameters, which is evidence of highly social behavior and trackmakers of different ages, including calves, juveniles, adolescents, and adults. The size frequency of the fossil footprints enabled us to deduce the body mass, shoulder height, and hip-height distribution of the trackmakers that crossed the East Tibet Plateau 44.7 Ma ago. The trackmakers comprised an estimated average hip-height of 111.8 cm, an average shoulder height of 172.8 cm for males/155.9 cm for females, and an average body mass of approximately 1 218.1 kg for males/907.8 kg for females. The abundance of fossil footprints reveals that in the Middle Eocene Epoch, the environment was extraordinarily conducive for the elephant ancestors to live in the East Tibet region.