mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Mutual Self-Regulation of d-Electrons of Single Atoms and Adjacent Nanoparticles for Bifunctional Oxygen Electrocatalysis and Rechargeable Zinc-Air Batteries

Rechargeable zinc-air batteries (ZABs) are a promising energy conversion device,which rely critically on electrocatalysts to accelerate their rate-determining reactions such as oxygen reduction (ORR) and oxygen evolution reactions (OER).Herein,we fabricate a range of bifunctional M-N-C (metal-nitrogen-carbon) catalysts containing M-Nx coordination sites and M/MxC nanoparticles (M = Co,Fe,and Cu) using a new class of γ-cyclodextrin (CD) based metal- organic framework as the precursor.With the two types of active sites interacting with each other in the catalysts,the obtained Fe@C-FeNC and Co@C-CoNC display superior alkaline ORR activity in terms of low half-wave (E1/2) potential (~ 0.917 and 0.906 V,respectively),which are higher than Cu@C-CuNC (~ 0.829 V) and the commercial Pt/C (~ 0.861 V).As a bifunctional electrocatalyst,the Co@C-CoNC exhibits the best performance,showing a bifunctional ORR/OER overpotential (ΔE) of ~ 0.732 V,which is much lower than that of Fe@C-FeNC (~ 0.831 V) and Cu@C-CuNC (~ 1.411 V),as well as most of the robust bifunctional electrocatalysts reported to date.Synchrotron X-ray absorption spectroscopy and density functional theory simulations reveal that the strong electronic correlation between metallic Co nanoparticles and the atomic Co-N4 sites in the Co@C-CoNC catalyst can increase the d-electron density near the Fermi level and thus effectively optimize the adsorption/desorption of intermediates in ORR/OER,resulting in an enhanced bifunctional electrocatalytic performance.The Co@C-CoNC-based rechargeable ZAB exhibited a maximum power density of 162.80 mW cm~(-2) at 270.30 mA cm~(-2),higher than the combination of commercial Pt/C + RuO_2 (~ 158.90 mW cm~(-2) at 265.80 mA cm~(-2)) catalysts.During the galvanostatic discharge at 10 mA cm~(-2),the ZAB delivered an almost stable discharge voltage of 1.2 V for ~ 140 h,signifying the virtue of excellent bifunctional ORR/OER electrocatalytic activity.
Towards rapid and automated vulnerability classification of concrete buildings

With the overwhelming number of older reinforced concrete buildings that need to be assessed for seismic vulnerability in a city, local governments face the question of how to assess their building inventory. By leveraging engineering drawings that are stored in a digital format, a well-established method for classification reinforced concrete buildings with respect to seismic vulnerability, and machine learning techniques, we have developed a technique to automatically extract quantitative information from the drawings to classify vulnerability. Using this technique, stakeholders will be able to rapidly classify buildings according to their seismic vulnerability and have access to information they need to prioritize a large building inventory. The approach has the potential to have significant impact on our ability to rapidly make decisions related to retrofit and improvements in our communities. In the Los Angeles County alone it is estimated that several thousand buildings of this type exist. The Hassan index is adopted here as the method for automation due to its simple application during the classification of the vulnerable reinforced concrete buildings. This paper will present the technique used for automating information extraction to compute the Hassan index for a large building inventory.
Sediments from cryoconite holes and dirt cones on the surface of Svalbard glaciers: main chemical and physicochemical properties

The paper discussed the influence of the forms of sediment accumulation on the surface of glaciers on their chemical and physicochemical properties. The materials sampled from the surface of five glaciers of the Svalbard Archipelago was analyzed. We studied such forms of sediment accumulation as dirt cones - the ice core covered with sediments and cryoconite holes - hollows on the glacier surface containing cryoconite material. Parameters such as total organic carbon content, microbiological activity, pH, the content of mobile forms of potassium and phosphorus, and concentrations of heavy and trace metals were studied. Also, mesomorphological studies were carried out and the polydisperse composition of the sediments was determined. According to the results of this work, it was found that the content of organic carbon in the material selected from dirt cones and cryoconite holes can be up to 2.5%, but the content of clay particles in it is mainly at the 10-15% level. Potassium concentrations are up to 250 mg/ kg, and phosphorus is up to 800 mg/kg. The content of metals is typical or lower than in the previously published data. The main influence on the chemical composition of materials has a geographical factor of the sampling site, rather than the form of material accumulation.
Recent progress in flexible Zn-ion hybrid supercapacitors:Fundamentals, fabrication designs, and applications

One of the most exciting new developments in energy storage technology is flexible Zn-ion hybrid supercapacitors (f-ZIHSCs), which combine the high energy of Zn-ion batteries with high-power supercapacitors to satisfy the needs of portable flexible electronics. However, the development of f-ZHSCs is still in its infancy, and there are numerous barriers to overcome before they can be widely implemented for practical applications. This review gives an up-to-date description of recent achievements and underlying concepts in energy storage mechanisms of f-ZIHSCs and emphasizes the critical role of cathode, anode, and electrolyte materials systems in speeding the prosperity of f-ZIHSCs. The innovative nanostructured-based cathode materials for f-ZIHSCs include carbon (e.g., porous carbon, heteroatom-doped carbon, biomass-derived porous carbon, graphene, etc.), metal-oxides, MXenes, and metal/covalentorganic frameworks, and other materials (e.g., activated carbon, phosphorene, etc.) are mainly focused. Afterward, the latest developments in flexible anode and electrolyte frameworks and impacts of electrolyte compositions on the electrochemical properties of f-ZIHSC are elaborated. Subsequently, the advancements based on fabrication designs, including quasi-solid-state, micro, fiber-shaped, and all climate-changed f-ZIHSCs, are discussed in detail. Lastly, a summary of current challenges and recommendations for the future progress of advanced f-ZIHSC are addressed. This review article is anticipated to further understand the viable strategies and achievable approaches for assembling high-performance f-ZIHSCs and boost the technical revolutions on cathode, anode, and electrolytes for f-ZIHSC devices.
阿司匹林用于预防心血管疾病美国预防服务工作组推荐声明解读

低剂量阿司匹林是心血管疾病防治的基本用药。近年,阿司匹林相关的出血等不良反应引起广泛关注。美国预防服务工作组基于最新系统证据审查,通过模型决策分析,在不同年龄、性别和心血管疾病风险分层的人群中评估阿司匹林用于心血管疾病和结直肠癌一级预防的利弊,并更新了对阿司匹林一级预防的相关推荐:不推荐≥60岁的成年人启用低剂量阿司匹林进行心血管疾病一级预防,对于10年心血管疾病风险≥10%的40~59岁成年人可根据个体情况并充分沟通后决定。本文旨在对阿司匹林用于预防心血管疾病最新美国预防服务工作组推荐声明进行解读。
残粒胆固醇与动脉粥样硬化性心血管疾病研究进展与启示

甘油三酯(TG)是重要的血脂相关心血管剩余风险之一。然而,在他汀基础上、以TG为降脂靶点、以心血管结局为主要终点的大规模临床试验却始终未能取得突破性进展。近年研究表明,由富含TG脂蛋白(TRL)代谢转变而成的残粒中的胆固醇即残粒胆固醇(RC)是TG相关心血管风险的罪魁祸首。本文针对源于TRL的RC相关研究进展进行研读、思考和汇总,以供同行们参考。
Sequential single pion production explaining the dibaryon "d*(2380)" peak

In this study, we investigate the two step sequential one pion production mechanism, that is, np(I = 0)→ π~-pp followed by the fusion reaction pp→π~+d, to describe the np→π~+π~-d reaction with π~+π~- in state I = 0. In this reaction, a narrow peak identified with a "d(2380)" dibaryon has been previously observed. We discover that the second reaction step pp→π~+d is driven by a triangle singularity that determines the position of the peak of the reaction and the high strength of the cross section. The combined cross section of these two mechanisms produces a narrow peak with a position, width, and strength, that are compatible with experimental observations within the applied approximations made. This novel interpretation of the peak accomplished without invoking a dibaryon explains why this peak has remained undetected in other reactions.
Novel aqueous rechargeable nickel//bismuth battery based on highly porous Bi_2WO_6 and Co_(0.5)Ni_(0.5)MoO_4 microspheres

Developing high performances aqueous rechargeable batteries is imperative and valuable. Herein, a novel aqueous rechargeable nickel//bismuth battery is developed based on highly porous Bi_2WO_6 and Co_(0.5)Ni_(0.5) MoO_4 microspheres as electrode active materials. Porous Bi_2WO_6 microspheres assembled from nanosheets as anode active materials can afford a specific capacity of 179.2 mAh·g~(-1) at 1 A·g~(-1), rate capability of 74.7% in 1-20 A·g~(-1), and capacity retention of 57.2% for 1500 cycles at 15 A·g~(-1). Owing to the highly porous microsphere with 'ribbon'-like and intertwined nanolayers morphology, the screened Co_(0.5)Ni_(0.5)MoO_4 cathode active materials present an outstanding specific surface area of 293 m~2·g~(-1) and excellent electrochemical performance(such as superior specific capacity of 113.2 mAh·g~(-1) at 1 A·g~(-1),high rate performance of 51.8% in 1-15 A·g~(-1), and good capacity retention of 48.5% for 4600 cycles at 15 A·g~(-1)). The corresponding aqueous rechargeable nickel//bismuth battery delivers the maximum energy density and power density of 35.8 Wh·kg~(-1) and 3238.5 W·kg~(-1), respectively. The present research would offer a worthwhile guidance for the effective construction of electrode active materials for aqueous rechargeable nickel//bismuth batteries.
Blend with the Sea Surface Temperature from Different Satellites and Their Comparison in the Southeast Pacific Ocean

The daily sea surface temperature (SST) data from three kinds of different satellites of GMI,GOES and MODIS were applied to do the blend in the Southeast Pacific Ocean throughout the whole year of 2020.The coverage rates of the SST of the blend result were improved highly and more stable throughout the whole year,compared with the result of the single satellite of GMI,GOES,and MODIS.The yearly average coverage rates of GMI,GOES,MODIS,and blend were 43%,48%,30%,and 76%,and their corresponding yearly average standard deviation (SD) were 4%,6%,7%,and 4%,respectively.All the coverage rates of these three satellites were low from April to September.The valid observation days calculated in the whole year over every grid were used to represent the spatial distribution patterns of the coverage rates.The spatial distribution patterns of coverage rates from GOES and MODIS were similar that their valid observation days were higher in the northwest area and lower in the south area,and those of GMI was contrary to the former two.The ranges of valid observation day was from GOES,GMI,and MODIS were 0-364,6-254,and 9-231 d,respectively.After the blend,all the observation day of every grid in the research region was enhanced (103-366 d).Especially the near shore and south area,and the minimum valid observation day increased largely from the single digits to hundreds digit.
Numerical simulation of frost jacking response of a single pile considering hydro-thermo-mechanical coupling

Permafrost is widely distributed in China and around the world. In permafrost regions, soil frost heave and thawing are severe and frequent, and can destabilize pile foundations. To this end, a finite element model of a single pile in frozen soil is established to investigate the frost heave and frost jacking response to ensure its safety in the Qinghai-Tibet Plateau. Firstly, a hydro-thermal coupling model of a single pile in frozen soil is established based on coupling parameters and initial and boundary conditions. Then the temperature and moisture distributions are analyzed through the established coupling model. A hydro-thermo-mechanical coupling model is developed by importing the ice content and temperature results. Simulation results indicate that the amount of frost heave is greater at locations closer to the ground surface, and the displacement is smaller for frozen soil that is closer to the side of the pile. The results on frost jacking behavior of piles from this study can serve as a reference for the design, construction and maintenance of foundations.
低氧训练对骨骼肌p53及其调控的线粒体有氧代谢信号通路基因表达的影响

目的:探讨低氧训练对大鼠骨骼肌p53及其调控的线粒体有氧代谢信号通路基因表达的影响,以及对线粒体有氧氧化供能能力的影响。方法: 30只雄性Wistar大鼠随机分为3组(n = 10),低住低练组(LoLo) 、高住高练组(HiHi)和高住高练低训组(HiHiLo) 。以当地海拔1 500 m为常氧环境,模拟海拔3 500 m为低氧环境,各组大鼠按训练方案训练5周后,取股四头肌行匀浆及提取线粒体。Real-time PCR检测p53、细胞色素c氧化酶合成2(SCO_2),细胞色素c氧化酶亚基Ⅰ(COXⅠ)和谷氨酰胺酶2(GLS2) mRNA表达,Westem blot检测p53、SCO_2、COXⅠ和GLS2蛋白表达; ELISA测定α-酮戊二酸脱氢酶(α-KGDHC),细胞色素c氧化酶(COX)及ATP合酶(ATP synthase)活性。结果: ①与LoLo组比较,HiHi和HiHiLo组p53 mRNA水平显著升高(P< 0.01),HiHiLo组p53蛋白表达水平显著下降(P< 0.01); HiHi和HiHiLo组SCO_2 mRNA水平和蛋白表达水平均显著升高(P< 0.01); HiHiLo组COXⅠmRNA水平显著升高(P<0.01),HiHi组显著降低(P<0.01),HiHi组COXⅠ蛋白表达水平显著升高(P< 0.05); HiHi和HiHiLo组GLS2 mRNA水平均显著升高(P<0.05,P<0.01),HiHiLo组GLS2蛋白表达水平显著下降(P<0.01) 。②与LoLo组比较,HiHi组a-KGDHC和COX活性均显著降低(P<0.01,P<0.05),HiHiLo组均显著升高(P<0.01); HiHi和HiHiLo组ATP synthase总活性和特异性活性均显著升高(P<0.01) 。结论:高住高练低训上调大鼠骨骼肌p53及其调控的线粒体有氧代谢信号通路相关因子基因转录水平,提高骨骼肌线粒体有氧氧化供能能力。
3D S-wave velocity structure of the Ningdu basin in Jiangxi province inferred from ambient noise tomography with dense array

The Ningdu basin, located in southern Jiangxi province of southwest China, is one of the Mesozoic basin groups which has exploration prospects for geothermal energy. A study on the detailed velocity structure of the Ningdu basin can provide important information for geothermal resource exploration. In this study, we deployed a dense seismic array in the Ningdu basin to investigate the 3D velocity structure and discuss implications for geothermal exploration and geological evolution. Based on the dense seismic array including 35 short-period (5 s-100 Hz) seismometers with an average interstation distance of ~5 km, Rayleigh surface wave dispersion curves were extracted from the continuous ambient noise data for surface wave tomographic inversion. Group velocity tomography was conducted and the 3D S-wave velocity structure was inverted by the neighborhood algorithm. The results revealed obvious low-velocity anomalies in the center of the basin, consistent with the low-velocity Cretaceous sedimentary rocks. The basement and basin-controlling fault can also be depicted by the S-wave velocity anomalies. The obvious seismic interface is about 2 km depth in the basin center and decreases to 700 m depth near the basin boundary, suggesting spatial thickness variations of the Cretaceous sediment. The fault features of the S-wave velocity profile coincide with the geological cognition of the western boundary basincontrolling fault, which may provide possible upwelling channels for geothermal fluid. This study suggests that seismic tomography with a dense array is an effective method and can play an important role in the detailed investigations of sedimentary basins.
Coseismic site response and slope instability using periodic boundary conditions in the material point method

This paper proposed the explicit generalized-a time scheme and periodic boundary conditions in the material point method (MPM) for the simulation of coseismic site response.The proposed boundary condition uses an intuitive particle-relocation algorithm ensuring material points always remain within the computational mesh.The explicit generalized-a time scheme was implemented in MPM to enable the damping of spurious high frequency oscillations.Firstly,the MPM was verified against finite element method (FEM).Secondly,ability of the MPM in capturing the analytical transfer function was investigated.Thirdly,a symmetric embankment was adopted to investigate the effects of ground motion arias intensity (I_a),geometry dimensions,and constitutive models.The results show that the larger the model size,the higher the crest runout and settlement for the same ground motion.When using a Mohr- Coulomb model,the crest runout increases with increasing I_a.However,if the strain-softening law is activated,the results are less influenced by the ground motion.Finally,the MPM results were compared with the Newmark sliding block solution.The simplified analysis herein highlights the capabilities of MPM to capture the full deformation process for earthquake engineering applications,the importance of geometry characterization,and the selection of appropriate constitutive models when simulating coseismic site response and subsequent large deformations.
内镜治疗胰腺假性囊肿感染伴结肠瘘1例报告并文献复习

背景与目的:胰腺假性囊肿(PPC)形成是急性胰腺炎(AP)常见的局部并发症,PPC发生胰腺结肠瘘者少见。本文对1例PPC并感染致结肠瘘的临床表现、诊断和内镜干预治疗等进行总结分析。方法:本文回顾分析内镜下治疗AP后PPC并感染致结肠瘘1例患者病例资料,结合国内外相关文献,总结PPC发生胰腺结肠瘘的临床表现、诊断和内镜干预治疗选择。结果:患者为51岁女性,因"上腹痛1 d"就诊。术前CT扫描检查报告:AP征象并假PPC形成。超声内镜下经胃后壁穿刺入胰头部,脓肿腔内放置蕈型覆膜金属支架(LAMS)(10 mm×50 mm),引流通畅,但术后患者反复高热。再次经超声内镜下放置覆膜金属支架、双猪尾支架、经鼻脓肿外引流等方法处理胰腺周围坏死。使用内镜吻合夹闭的技术处置胰腺结肠瘘管,术后完全治愈。结论:内镜技术在治疗胰腺周围感染性坏死及重症急性胰腺炎(SAP)合并结肠瘘中具有创伤小、安全性高、疗效确切的优势。
颅内海绵状血管瘤法医学鉴定1例

ICA伤病关系分析依据《标准》4.3伤病关系处理原则,笔者认为主要有以下几种情况:(1)外伤史不明确。伤后间隔一段时间报案,影像学检查明确ICA诊断,此时认定ICA与外伤之间因果关系依据不足。 (2)外伤作用轻微,仅头皮挫裂伤未见颅骨骨折,经影像学动态观察诊断ICA且瘤体未出血,此时认定ICA与外伤之间因果关系依据不足(类似本案例)。(3)外伤作用轻微,仅头皮挫裂伤未见颅骨骨折,经影像学动态观察诊断ICA且伴瘤体破裂出血(或手术证实ICA瘤体新鲜出血),此时认为ICA(自身疾病)与外伤共同导致瘤体破裂出血,可根据具体情况考虑按《标准》第4.3.2条伤病作用相当,降低损伤程度等级评定,或按《标准》第4.3.3条认为本次损伤为次要或轻微作用,不进行损伤程度评定,只说明因果关系。 (4)外伤作用较重,同时存在头皮挫裂伤和颅骨骨折,经影像学动态观察诊断ICA伴瘤体破裂出血(或手术证实ICA瘤体新鲜出血),认定ICA与外伤共同导致瘤体破裂出血,此时可考虑按《标准》第4.3.2条伤病作用相当,降低损伤程度等级评定。
Best Linear Unbiased Estimators of Location and Scale Ranked Set Parameters under Moving Extremes Sampling Design

In the current paper, the best linear unbiased estimators (BLUEs) of location and scale parameters from location-scale family will be respectively proposed in cases when one parameter is known and when both are unknown under moving extremes ranked set sampling (MERSS). Explicit mathematical expressions of these estimators and their variances are derived. Their relative efficiencies with respect to the minimum variance unbiased estimators (MVUEs) under simple random sampling (SRS) are compared for the cases of some usual distributions. The numerical results show that the BLUEs under MERSS are significantly more efficient than the MVUEs under SRS.
Efficient and Accurate Numerical Methods Using the Accelerated Spectral Deferred Correction for Solving Fractional Differential Equations

We develop an efficient and accurate spectral deferred correction(SDC) method for fractional differential equations(FDEs) by extending the algorithm in [14] for classical ordinary differential equations(ODEs). Specifically, we discretize the resulted Picard integral equation by the SDC method and accelerate the convergence of the SDC iteration by using the generalized minimal residual algorithm(GMRES). We first derive the correction matrix of the SDC method for FDEs and analyze the convergence region of the SDC method. We then present several numerical examples for stiff and non-stiff FDEs including fractional linear and nonlinear ODEs as well as fractional phase field models, demonstrating that the accelerated SDC method is much more efficient than the original SDC method, especially for stiff problems. Furthermore, we resolve the issue of low accuracy arising from the singularity of the solutions by using a geometric mesh, leading to highly accurate solutions compared to uniform mesh solutions at almost the same computational cost. Moreover, for long-time integration of FDEs, using the geometric mesh leads to great computational savings as the total number of degrees of freedom required is relatively small.
Robust Iteration-dependent Least Mean Square-based Distribution Static Compensator Using Optimized PI Gains

A robust iteration-dependent least mean square (RIDLMS) algorithm-based fundamental extractor is developed to estimate the fundamental components of the load current for a four-wire DSTATCOM with a nonlinear load.The averaging parameter for calculating the variable step size is iteration dependent and uses variable tuning parameters.Rather than using the current value,the previous learning rate was used in this method to achieve a more adaptive solution.This additional control factor aids in determining the exact learning rate,resulting in reliable and convergent outcomes.Its faster convergence rate and the avoidance of local minima make it advantageous.The estimation of the PI controller gains is achieved through a self-adaptive multi-population algorithm.The adaptive change in the group number will increase exploration and exploitation.The self-adaptive nature of the algorithm was used to determine the subpopulation number needed according to the fitness value.The main advantage of this self-adaptive nature is the multi-population spread throughout the search space for a better optimal solution.The estimated gains of the PI controllers are used for the DC bus and AC terminal voltage error minimization.The RIDLMS-based control with PI gains obtained using the proposed optimization algorithm showed better power quality performance.The considered RIDLMS-supported control was demonstrated experimentally using d-SPACE-1104.
One-dimensional PtFe hollow nanochains for the efficient oxygen reduction reaction

Integration of electronic and strain effects with tailored structures is significant to tuning the electrocatalytic activity and stability of the electrocatalysts for the oxygen reduction reaction (ORR).In this study,onedimensional PtFe hollow nanochains are synthesized by a facile and effective method,which exhibit a highly open and porous structure.The modulated electronic and strain effects of Pt atoms are verified by extensive structural characterizations,and the mass and specific activities of the prepared catalyst are roughly 7.45 and 12.44 times higher than those of the commercial Pt/C catalyst,respectively.Remarkably,the catalyst demonstrates robust performance with negligible activity decay after an accelerated durability test for 30,000 cycles.The high activity of the catalyst is probably due to the optimized absorption affinity of Pt-O accelerating the reaction kinetics induced by the cooperation of Fe atoms as well as the unique hollow and curved structures.This study provides new insights into the rational design of high-performance ORR catalysts with considerable durability.