mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
SUMOylation of α-tubulin is a novel modification regulating microtubule dynamics

Microtubules(MTs)are regulated by a number of known posttranslational modifications(PTMs)on α/β-tubulin to fulfill diverse cellular functions.Here,we showed that SUMOylation is a novel PTM on α-tubulin in vivo and in vitro.The SUMOylation on α-tubulin mainly occurred at Lys 96(K96),K166,and K304 of soluble α-tubulin and could be removed by small ubiquitin-related modifier(SUMO)-specific peptidase 1.In vitro experiments showed that tubulin SUMOylation could reduce interprotofilament interaction,promote MT catastrophe,and impede MT polymerization.In cells,mutation of the SUMOylation sites on α-tubulin reduced catastrophe frequency and increased the proportion of polymerized α-tubulin,while upregulation of SUMOylation with fusion of SUMO1 reduced α-tubulin assembly into MTs.Additionally,overexpression of SUMOylation-deficient α-tubulin attenuated the neurite extension in Neuro-2a cells.Thus,SUMOylation on α-tubulin represents a new player in the regulation of MT properties.
Development of High Strength and Toughness Non-Heated Al-Mg-Si Alloys for High-Pressure Die-Casting

Based on the 3 factors and 3 levels orthogonal experiment method,compositional effects of Mg,Si,and Ti addition on the microstructures,tensile properties,and fracture behaviors of the high-pressure die-casting Al-x Mg-y Si-z Ti alloys have been investigated.The analysis of variance shows that both Mg and Si apparently influence the tensile properties of the alloys,while Ti does not.The tensile mechanical properties are comprehensively influenced by the amount of eutectic phase(α-Al+Mg_2Si),the average grain size,and the content of Mg dissolved into α-Al matrix.The optimized alloy is Al-7.49 Mg-3.08Si-0.01Ti(wt%),which exhibits tensile yield strength of 219 MPa,ultimate tensile strength of 401 MPa,and elongation of 10.5%.Furthermore,contour maps,showing the relationship among compositions,microstructure characteristics,and the tensile properties are constructed,which provide guidelines for developing high strength and toughness Al-Mg-Si-Ti alloys for high-pressure die-casting.
Conductivity and Oxidation Behavior of Fe-16Cr Alloy as Solid Oxide Fuel Cell Interconnect Under Long-Stability and Thermal Cycles

Conductivity and oxidation behavior of Fe-16Cr alloy were investigated under long-term stability operation at 750 °C and thermal cycles from room temperature to 750 °C.The results showed that the area specific resistance(ASR)of Fe-16Cr alloy increased over time and reached about 56.29 mΩ cm~2 after 40,000 h of long-term stability operation at 750 °C by theoretical calculation.The ASR of Fe-16Cr remained about 11 mΩ cm~2 after 52 thermal cycles from room temperature to 750 °C.The analysis of structure showed that the oxidized phase on the surface of Fe-16Cr was mainly composed of Cr_2O_3 and FeCr_2O_4 spinel phase under long-term stability operation at 750 °C.While the Cr_2O_3 phase was mainly observed on the surface of Fe-16Cr alloy after 52 thermal cycles,the oxidation rates of Fe-16Cr alloy were 0.0142 μm h~(-1)and 0.06 μm cycle~(-1) under long-term stability operation and under thermal cycle,respectively.The property of Fe-16Cr alloy with 2.6 mm thickness met the lifespan requirement of interconnect for solid oxide fuel cell(SOFC)stacks.The Cr element all diffused onto oxidation surface,indicating that it was necessary to spray a coating on the surface to avoid poisoning cell cathode of SOFCs.Two 2-cell stacks were assembled and tested to verify the properties of Fe-16Cr alloy as SOFC interconnect under long-term stability operation and thermal cycle condition.
Insights into the Ti~(4+) doping in P2-type Na_(0.67)Ni_(0.33)Mn_(0.52)Ti_(0.15)O_2 for enhanced performance of sodium-ion batteries

Due to the sodium abundance and availability, sodium-ion batteries (SIBs) have the potential to meet the worldwide growing demand of electrical energy storage. P2-type sodium transition-metal layer oxides with a high energy density are considered as the most promising cathode materials for SIBs. We present here a detailed study of the enhanced rate capability and cyclic stability of the Ti-doped Na_(0.67)Ni_(0.33)Mn_(0.67)O_2 cathode material. The combined analysis of ex-situ X-ray absorption fine structure (XAFS) spectroscopy, aberration-corrected high resolution transmission electron microscopy (AB-HRTEM) and X-ray diffraction (XRD) show that the strong Ti-O bond in the transition metal layers stabilizes the local structure, destroy the Na~+-vacancy ordering and arrest the irreversible multiphase transformation that occurs during the intercalation/deintercalation process. Actually, Na_(0.67)Ni_(0.33)Mn_(0.52)Ti_(0.15)O_2 exhibits a reversible capacity of 89.6mAh g~(-1) even at 5 C, an excellent cyclability with 88.78 % capacity retention after 200 cycles at 0.5 C. This study provides a better understanding in optimization of the design of high-energy cathode materials based on titanium doped layered oxides for SIBs.
High visible light photocatalytic activities obtained by integrating g-C_3N_4 with ferroelectric PbTiO_3

Graphitic carbon nitride (g-C_3N_4) with the merits of high visible light absorption, proper electronic band structure with high conduction band edge and variable modulation, is viewed as a promising photocatalyst for practical use. To alleviate its high recombination rate of photo-excited charge carriers and maximize the photocatalytic performances, it is paramount to design highly effective transfer channels for photo-excited charge carriers. Ferroelectric materials can have the charge carriers transport in opposite directions owing to the internal spontaneous polarization, which may be suitable for constructing the heterostructure with g-C_3N_4 for efficient charge separation. Inspired by this concept, herein ferroelectric PbTiO_3, which can be the visible-light absorber, is coupled with g-C_3N_4 to construct PbTiO_3/g-C_3N_4 heterostructure with close contact via Pb-N bond by the facile post thermal treatment. The optimized PbTiO_3/g-C_3N_4 heterostructure exhibited excellent photocatalytic and photoelectrochemical activities under visible light irradiation. Moreover, the simultaneous application of ultrasound-induced mechanical waves can further improve its photocatalytic activities through reinforcing the built-in piezoelectric field. This work proposes a widely applicable strategy for the fabrication of high-performance ferroelectric based photocatalysts and also provides some new ideas for developing the understanding of ferroelectric photocatalysis.
Bioprocess-inspired preparation of silica with varied morphologies and potential in lithium storage

As one of the most delicate bioprocesses in nature, biosilicification is closely related to biosilica with various morphologies, and has provided abundant inspiration to materials synthesis. In the present study, to explore the biosilica formation process and fabricate silica with an exquisite microstructure for lithiumion battery (LIB) electrodes, a bacterial phage (M13) is used as a biotemplate to synthesize silica with diverse morphologies: cylinders, hexagonal prisms, assemblies of smaller cylinders and nanowires. A facile ethanol bath method is conducted to coat the nanowires with nitrogen-containing carbon and carbon-coated SiO_2 nanowires with mesochannels (C@msSiO_2NWs) are first used as anode materials for LIBs.Attributed to the uniform carbon coating and parallel mesochannel structure, the electronic conductivity and capacity to accommodate volume variations were significantly improved.In the electrochemical performance test, the composites calcined at 750 ℃ (C@msSiO_2NWs-750) show an impressive capacity of 653 mA h g~(-1) at a current density of 500 mA g~(-1) and stability (1000 cycles).In view of the electrochemical test outcomes, the preparation of a sophisticated structure with an outstanding potential is easily achieved via a biomimetic strategy.
Interlayer material technology of manganese phosphate toward and beyond electrochemical pseudocapacitance over energy storage application

Manganese phosphates have shown excellent performances and great potential in electrochemical energy storage, which are demonstrated by research works published in recent years. For manganese phosphates, the open-framework structures with large channels and cavities endow them with good ion conductivity and charge storage capacity. In this review, we present the recent progress on manganese phosphates, by focusing on their advantages/disadvantages and potential applications as a new class of electrode materials in supercapacitors. The structural characteristics, synthesis methods, and mineral sources to prepare these manganese phosphates are investigated, together with the modification, as they strongly affect the electrochemical energy storage performance. Attentions are paid to those hybrid-type materials, where strong synergistic effects exist. In the summary, interlayer engineering for the manganese phosphates and hybrid-types are proposed and discussed.
Numerical simulation of macrosegregation in continuously cast gear steel 20CrMnTi with final electromagnetic stirring

A 3D/2D hybrid multi-physical-field mathematical model, which takes into consideration the thermosolutal buoyance, was developed to predict the macrosegregation of gear steel 20CrMnTi continuously cast by a curved billet caster with size of 160 mm 9 160 mm, and investigated the effect of final electromagnetic stirring(F-EMS)on the fluid flow, heat transfer and solute distribution in the liquid core of continuously cast steel.The results show that the application of F-EMS eliminates the effect of thermosolutal buoyancy on the asymmetric distribution of carbon concentration in the cross section of billet and accelerates the final solidification of resident molten steel in the liquid core of strand, but promotes the negative carbon segregation near the billet center.When the gear steel 20CrMnTi is cast at the temperature of 1803 K and speed of 1.7 m/min, the solidification end advances forward from 9.84 to 9.72 m, and center carbon segregation ratio of billet decreases from 1.24 to 1.17 with the increase in current density of F-EMS from 0 to 350 A.
Quantum Transport across Amorphous-Crystalline Interfaces in Tunnel Oxide Passivated Contact Solar Cells: Direct versus Defect-Assisted Tunneling

Tunnel oxide passivated contact solar cells have evolved into one of the most promising silicon solar cell concepts of the past decade, achieving a record efficiency of 25%. We study the transport mechanisms of realistic tunnel oxide structures, as encountered in tunnel oxide passivating contact (TOPCon) solar cells. Tunneling transport is affected by various factors, including oxide layer thickness, hydrogen passivation, and oxygen vacancies. When the thickness of the tunnel oxide layer increases, a faster decline of conductivity is obtained computationally than that observed experimentally. Direct tunneling seems not to explain the transport characteristics of tunnel oxide contacts. Indeed, it can be shown that recombination of multiple oxygen defects in a-SiOx can generate atomic silicon nanowires in the tunnel layer. Accordingly, new and energetically favorable transmission channels are generated, which dramatically increase the total current, and could provide an explanation for our experimental results. Our work proves that hydrogenated silicon oxide (SiOx:H) facilitates high-quality passivation, and features good electrical conductivity, making it a promising hydrogenation material for TOPCon solar cells. By carefully selecting the experimental conditions for tuning the SiOx:H layer, we anticipate the simultaneous achievement of high open-circuit voltage and low contact resistance.
Metal-Element-Incorporation Induced Superconducting Hydrogen Clathrate Structure at High Pressure

The recent observation of high critical temperature Tc in lanthanum and Yttrium hydrides confirms the key role of hydrogen cage (H-cage) in determining high superconductivity. Here, we present a new class of metastable H12 clathrate structures based on the icosahedral cI24-Na that can be stabilized by incorporation of metal elements. Analysis shows that the charge transfer from metal atoms to H atoms contributes to forming the H12 clathrate. Nine dynamically stable structures are identified to exhibit superconductivity, and a maximum Tc of 28K is found in voids-doped Mo6H24. Calculations reveal that the low Tc is attributed to the weak interaction between H atoms in each cage due to the long H-H distance. The current results provide a possible route to design H-cage containing superconductors.
Symmetry-Protected Scattering in Non-Hermitian Linear Systems

Symmetry plays fundamental role in physics and the nature of symmetry changes in non-Hermitian physics. Here the symmetry-protected scattering in non-Hermitian linear systems is investigated by employing the discrete symmetries that classify the random matrices. The even-parity symmetries impose strict constraints on the scattering coefficients: the time-reversal (C and K) symmetries protect the symmetric transmission or reflection; the pseudo-Hermiticity (Q symmetry) or the inversion (P) symmetry protects the symmetric transmission and reflection. For the inversion-combined time-reversal symmetries, the symmetric features on the transmission and reflection interchange. The odd-parity symmetries including the particle-hole symmetry, chiral symmetry, and sublattice symmetry cannot ensure the scattering to be symmetric. These guiding principles are valid for both Hermitian and non-Hermitian linear systems. Our findings provide fundamental insights into symmetry and scattering ranging from condensed matter physics to quantum physics and optics.
Erasable Ferroelectric Domain Wall Diodes

The unipolar diode-like domain wall currents in LiNbO_3 single-crystal nanodevices are not only attractive in terms of their applications in nonvolatile ferroelectric domain wall memory,but also useful in half-wave and full-wave rectifier systems,as well as detector,power protection,and steady voltage circuits.Unlike traditional diodes,where the rectification functionality arises from the contact between n-type and p-type conductors,which are unchanged after off-line production,ferroelectric domain wall diodes can be reversibly created,erased,positioned,and shaped,using electric fields.We demonstrate such functionality using ferroelectric mesa-like cells,formed at the surface of an insulating X-cut LiNbO_3 single crystal.Under the application of an in-plane electric field above a coercive field along the polar Z axis,the domain within the cell is reversed to be antiparallel to the unswitched bottom domain via the formation of a conducting domain wall.The wall current was rectified using two interfacial volatile domains in contact with two side Pt electrodes.Unlike the nonvolatile inner domain wall,the interfacial domain walls disappear to turn off the wall current path after the removal of the applied electric field,or under a negative applied voltage,due to the built-in interfacial imprint fields.These novel devices have the potential to facilitate the random definition of diode-like elements in modern large-scale integrated circuits.
Ellipsoidal Thermal Concentrator and Cloak with Transformation Media

Thermal concentrators and cloaks with ellipsoidal shapes are designed by utilizing the transformation thermotics method and finite element simulations. The thermal conductivities for the concentrator and cloak are directly derive in Cartesian coordinates. The simulation results show that the ellipsoidal thermal concentrator can focus heat flux into a central region and that the ellipsoidal thermal cloak can guide heat flux around the cloaked region smoothly without disturbing the external temperature distribution and heat flux. The present method can be extended to design arbitrarily shaped thermal metadevices with novel properties.
Isotropic Thermal Cloaks with Thermal Manipulation Function

By extending the conventional scattering canceling theory,we propose a new design method for thermal cloaks based on isotropic materials.When the objects are covered by the designed cloaks,they will not disturb the temperature profile in the background zone.In addition,if different inhomogeneity coefficients are selected in the thermal cloak design process,these cloaks can manipulate the temperature gradient of the objects,i.e.,make the temperature gradients higher,lower,or equal to the thermal gradient in the background zone.Therefore,thermal transparency,heat concentration or heat shield effects can be realized under a unified framework.
基于PMAC控制器自动化探针测量研究

探针作为五轴数控工具磨床重要的测量器件,用来触测刀具工件表面相关参数。为提高五轴磨床测量系统自动化程度以及减少由于测量需要重复装夹工件导致的安装误差,在基于PMAC开放式的控制平台上,开发探针测量功能。以测量工件夹持长度为例,分析自动测量系统原理,研究利用PMAC控制卡程序跳转机制实现探针功能。编写G31代码以及下位机PLC探针程序实现自动探针测量功能。同时探讨了探针补偿值的测量问题,以提高测量精度和响应的快速性。
BIM技术在油气管道工程建设阶段应用的研究

目前,我国油气管道建设过程中还存在管理效率低、智能化程度不高、建设周期长等问题。因此,为了解决这些问题,实现油气管道智能化建设过程中的全生命周期管理、全数字化移交,结合BIM在房屋建筑、道路桥梁、城市综合管廊等领域中的成功实践和经验,笔者提出了BIM技术的解决思路和方案。把BIM技术数据共享、协同工作和全生命周期管理的理念引入到油气管道工程建设领域中,建立管道全生命周期一体化管理模式(PLIM)和构建基于BIM技术的系统协同管理平台;有利于缩短油气管道建设周期,提升精细化管理水平,保证油气管道建设的安全、质量和效率。
基于传输线拐角的区域分解有限元相减法

针对5G高频信号传输过程中传输线拐角处存在传输信号不完整的问题,提出一种新的半圆弧拐角结构。首先,采用区域分解的有限元相减法提取拐角处S参数值;然后,运用AnSyS HFSS软件对传输线结构进行模拟仿真,分析传输线拐角结构模型的特点;最后,通过研究拐角结构对传输线的影响情况,采用半圆弧拐角结构对传输线结构进行优化。仿真及实验表明半圆弧结构相比于传统折角结构能有效降低传输线拐角辐射11.2%,验证了设计的有效性。
表现为磨玻璃结节的细支气管腺瘤二例

本文报道2例细支气管腺瘤。患者均为中年男性,均无呼吸系统症状,体检时胸部CT发现肺部磨玻璃结节,形态欠规则,边缘略毛糙,病灶内部均可见小空泡影。CT诊断均不能除外恶性结节,遂进行手术切除。术后病理确诊为细支气管腺瘤。
细针穿刺诊断伴肉芽肿和凝固性坏死的经典型霍奇金淋巴瘤1例

目前国内外文献尚未见细针穿刺细胞学诊断伴肉芽肿反应的淋巴结CHL的报道。本文首次详细描述了伴肉芽肿反应及凝固性坏死CHL的细胞病理特征,分析了初诊时误诊的原因,列举了一些可能伴有肉芽肿反应的恶性病变以及形态类似肉芽肿的恶性病变,并介绍了其与肉芽肿的鉴别要点;提示进行FNA细胞学诊断时,若看到肉芽肿仍需警惕恶性病变的可能,在阅片过程中需要仔细观察除肉芽肿外的其他细胞成分,并重视临床病史,避免误、漏诊。
开鲁坳陷发现特大型砂岩铀铼共(伴)生矿床

20世纪90年代初,开鲁坳陷在油气勘探时发现铀异常,历经20余年持续科学攻关及勘查实践,在钱家店地区相继落实一个整装特大型砂岩铀矿床,一个大型共(伴)生整装砂岩铼矿床,取得国家关键战略矿产找矿的重大突破,引起业内广泛关注。
男性乳腺腺样囊性癌一例

本文报道1例男性乳腺腺样囊性癌(adenoid cystic carcinoma)的临床病理特征和诊断要点。患者男,23岁,2009年发现左乳包块,2014年开始出现疼痛。镜下可见肿瘤细胞与周围乳腺组织边界尚清,肿瘤细胞主要呈筛状,部分区域为实体状,可见基底细胞样细胞及导管腔面上皮细胞2种细胞类型,间质黏液样变或玻璃样变性。基底细胞样细胞为主要组分,核圆形或成角,胞质稀少,细胞边界不清,间质内陷形成假腺腔;筛状结构间可见被挤压的导管结构,导管上皮细胞矮立方状,胞质嗜酸。免疫表型:基底细胞样细胞p63、MYB、细胞角蛋白(CK)5/6阳性;导管腔面上皮细胞E-cadherin、p120、CD117阳性,雌激素受体(ER)、孕激素受体(PR)、HER2为阴性;Ki-67阳性指数20%。腺样囊性癌是一种非常罕见预后较好的发生在乳腺的浸润性癌,男性乳腺更加罕见。结合免疫组织化学染色可以明确诊断。
滑动性食管裂孔疝案

食管裂孔疝是指腹腔内脏器(主要是胃)通过膈食管裂孔进入胸腔所致的疾病,滑动性食管裂孔疝是其临床最常见类型。本病属中医学"噎膈"的范畴,病机较复杂,多为虚实夹杂。以内伤饮食、情志、年老肾亏为主因,且三者之间相互影响,互为因果,共同致病,使气滞、痰阻、血瘀三邪阻于食管而使食管狭窄,甚则津伤血亏,失于濡润,食管干涩,难以下咽。病变部位在食管,属胃气所主,其病变脏腑关键在胃,与肝脾肾关系密切。天突可散胸中气结以利胸膈,调胃气;中脘为胃之募穴,可治胃痛、呕吐、吞酸、呃逆;内关可宽胸理气止痛。足三里属循经远道取穴,可养先后天之气,使元气不衰;与气海、关元共行温针灸,可补益气血、温通经络,通过振奋阳气激发脏腑经络之气。本案患者素饮食不节,致胃气亏损,又因外伤损伤食管脉络,气滞阻于食管而成噎膈。饮食难下,胃不和则卧不安,遂以四神针调神安眠,调理一身之神气,配合中脘、足三里共奏和胃助眠之效。头针与体针并用,针刺与温针灸配合,既注重局部宽胸利膈,又兼气神同调,调补元气,使胃气得调,胸中气结得以舒散,疾病得愈。
Matter and radiation at extremes: Prospects and impacts

High-energy-density science (HEDS) has been recognized as a comprehensive new area of physical science, with the potential to revolutionize various scientific and technological fields, including nuclear fusion, particle acceleration, astrophysics, and the properties of condensed matter under extreme conditions. That is why this journal, Matter and Radiation at Extremes (MRE), was established five years ago by the China Academy of Engineering Physics (CAEP) with the mission of informing the worldwide scientific community about progress related to HEDS, whether this be in the basic physics, its applications, or engineering. New developments in HEDS have been enabled by the high-power pulsed machines and facilities that have come into operation during the last decade. From megajouleclass lasers, Z pinches to x-ray free-electron lasers (XFELs), these facilities provide routes toward inertial confinement fusion (ICF) ignition as well as overcoming a number of challenges in laboratory astrophysics. In this context, MRE seeks to become the major journal documenting developments in this exciting new discipline where the properties and behavior of matter and radiation in extreme states intertwine.
Key technologies for medium and low voltage DC distribution system

Development of the medium and low voltage DC distribution system is of great significance to a regional transmission of electric energy, increasing a penetration rate of new energy, and enhancing a safety of the operation of the AC/DC interconnected grid. This paper first summarizes the medium and low voltage DC distribution system schemes and plans put forward by many countries, and then elaborate status of under-construction medium and low voltage DC distribution system project cases in China. Based on these project cases, this paper analyzes key issues involved in the medium and low voltage DC distribution system topologies, equipment, operation control technologies and DC fault protections, in order to provide theoretical and technical reference for future medium and low voltage DC distribution system-related projects. Finally, this paper combines a current China research status to summarize and give a prediction about the future research direction of medium and low voltage DC distribution system, which can provide reference for the research of medium and low voltage DC distribution system.
Station-and-network-coordinated planning of integrated energy system considering integrated demand response

The integrated energy system (IES) is an important energy supply method for mitigating the energy crisis. A station-and-network-coordinated planning method for the IES, which considers the integrated demand responses (IDRs) of flexible loads, electric vehicles, and energy storage is proposed in this work. First, based on load substitution at the user side, an energy-station model considering the IDR is established. Then, based on the characteristics of the energy network, a collaborative planning model is established for the energy station and energy network of the IES, considering the comprehensive system investment, operation and maintenance, and clean energy shortage penalty costs, to minimize the total cost. This can help optimize the locations of the power lines and natural gas pipelines and the capacities of the equipment in an energy station. Finally, simulations are performed to demonstrate that the proposed planning method can help delay or reduce the construction of new lines and energy-station equipment, thereby reducing the investment required and improving the planning economics of the IES.
Evaluating the reliability of distributed photovoltaic energy system and storage against household blackout

Distributed energy resources have been proven to be an effective and promising solution to enhance power system resilience and improve household-level reliability. In this paper, we propose a method to evaluate the reliability value of a photovoltaic (PV) energy system with a battery storage system (BSS) by considering the probability of grid outages causing household blackouts. Considering this reliability value, which is the economic profit and capital cost of PV+BSS, a simple formula is derived to calculate the optimal planning strategy. This strategy can provide household-level customers with a simple and straightforward expression for invested PV+BSS capacity. Case studies on 600 households located in eight zones of the US for the period of 2006 to 2015 demonstrate that adding the reliability value to economic profit allows households to invest in a larger PV+BSS and avoid loss of load caused by blackouts. Owing to the differences in blackout hours, households from the 8 zones express distinct willingness to install PV+BSS. The greater the probability of blackout, the greater revenue that household can get from the PV+BSS. The simulation example shows that the planning strategy obtained by proposed model has good economy in the actual operation and able to reduce the economic risk of power failure of the household users. This model can provide household with an easy and straightforward investment strategy of PV+BSS capacity.