mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Self-assembly synthesis of SnNb_2O_6/amino-functionalized graphene nanocomposite as high-rate anode materials for sodium-ion batteries

A two-dimensional (2D) SnNb_2O_6/amino-functionalized graphene (En-RGO) nanocomposite with a representative 2D-2D architecture has been constructed by an easy self-assembly approach and firstly investigated as anode materials for secondary sodium-ion batteries.The SnNb_2O_6 nanosheets are evenly anchored with the amino-functionalized graphene through electrostatic attractive interplay between the negatively charged SnNb_2O_6 and positively charged En-RGO after modification.As a result, a remarkable reversible capacity of 300 mAh·g~(-1) was obtained at 50 mA·g~(-1), and significantly, the En-RGO electrode could also deliver ultra-long calendar life up to 1900 cycles with a high reversible capacity of 200 mAh·g~(-1) at current of 500 mA·g~(-1).Such excellent electrochemical characteristics can be mainly ascribed to its fast pseudo-capacitive energy storage mechanism, and the capacitive contribution can even reach up to 90% at 1.2 mV·s~(-1).
Microstructural evolution and mechanical properties of a new Al-Cu-Li-X alloy at different solution temperatures

The microstructural evolution and mechanical properties of a new Al-3.8Cu-1.2Li-0.4 Mg-0.4Zn-0.4Ag-0.3Mn-X alloy treated at different solution temperatures were investigated.The grain size was measured in optical micrograph (OM).The residual particles and the major precipitates were identified by electron probe microanalysis (EPMA), scanning electron microscopy (SEM) and transmission electron microscope (TEM), respectively.The results show that the peak strength appears at 530 °C/1 h + T6(165 °C/20 h) and the values are 566.2 MPa (tensile strength) and 538.2 MPa (yield strength) with the elongation of 6.5 %.The strength of the alloy increases rapidly with the amount of the precipitates T_1 and θ' increasing when the solution temperature is 530 °C.The increase in density of precipitates is resulted from the residual particles Al_2Cu, and particles enriched with Cu, Mg, Zr and Ag dissolve into matrix gradually with the solution temperature increasing.Finally, the number of precipitates decreases and part of the grain boundary weakens with a further increase in solution temperature from 540 to 550 °C, leading to a decline of strength.
Stable sodium metal anode enhanced by advanced electrolytes with SbF_3 additive

The practical application of sodium metal batteries (SMBs) is hampered due to the inferior interfacial stability between Na metal and conventional electrolytes.Therefore, a high-concentration electrolyte is proposed to solve this issue.However, high viscosity, low ionic conductivity, and unsatisfactory wettability toward the separator need to be overcome.In this study, a localized high-concentration electrolyte (LHCE) is formulated with 1 wt% SbF_3 as an interface-stabilized additive to protect the Na metal anode.This reformulated LHCE retains the special coordination structure in HCE with improved wettability and high ionic conductivity.Moreover, the introduction of the SbF_3 additive into the LHCE resulted in a bilayer-structured solid electrolyte interface (SEI) including a Na-Sb alloy inner layer and a NaF-rich outer layer on the Na metal.As expected, the Na||Na cells using LHCE + 1 wt% SbF_3 show a long cycle lifespan of over 1200 h at 0.5 mA·cm~(-2) with negligible polarization, and Na||lNa_3V_2(PO_4)_3 cells exhibit a high capacity exceeding 97 mAh·g~(-1) at 40C.
Designing electrolytes for lithium metal batteries with rational interface stability

Lithium (Li)-ion batteries (LIBs) have promoted the development of portable electronics and electric vehicles [1, 2].However, with the rapid increase in energy demand, it is increasingly urgent to develop batteries with high energy density [3].Li metal batteries (LMBs) are considered as the "Holy Grail" which have attracted much attention due to the high theoretical capacity (3860 mAh·g~(-1)) and low redox potential (-3.040 V vs.the standard hydrogen electrode) [4,5].However, before the practical application of LMBs, there are two pressing problems to be solved: one is the growth of Li dendrites and the other is low coulomb efficiency (CE) [6].In the last few decades, enormous research has proven that the solid electrolyte interphase (SEI) layer with high uniformity and stability can effectively suppress the growth of lithium dendrites [7].So, electrolyte engineering is used to facilitate the formation of stable SEI due to the significant impact and low cost.Recently, two papers in Angewandte Chemie International Edition [8] and Nature Communications [9] reported two new electrolyte systems to repress the growth of Li dendrites and improve the long-term performance of LMBs.
Recent progress in Li-ion batteries with TiO_2 nanotube anodes grown by electrochemical anodization

Self-organized titanium dioxide (TiO_2) nanotubes, which are prepared by electrochemical anodizing, have been widely researched as promising anodes for Li-ion batteries.Both nanotubular morphology and bulk structure of TiO_2 nanotubes can be easily changed by adjusting the anodizing and annealing parameters.This is provided to investigate different phenomena by selectively adjusting a specific parameter of the Li~+ insertion mechanism.In this paper, we reviewed how the morphology and crystallography of TiO_2 nanotubes influence the electrochemical performance of Li~+ batteries.In particular, electrochemical performances of amorphous and anatase titanium dioxide nanotube anodes were compared in detail.As we all know, TiO_2 nanotube anodes have the advantages of nontoxicity, good stability, high safety and large specific surface area, in lithium-ion batteries.However, they suffer from poor electronic conductivity, inferior ion diffusivity and low theoretical capacity (335 mAh·g~(-1)),which limit their practical application.Generally, there are two ways to overcome the shortcomings of titanium dioxide nanotube anodes, including doping and synthesis composites.The achievements and existing problems associated with doped TiO_2 nanotube anodes and composite material anodes are summarized in the present review.Based on the analysis of lithium insertion mechanism of titanium dioxide nanotube electrodes, the prospects and possible research directions of TiO_2 anodes in lithiumion batteries are discussed.
Effects of phosphate on the transport of graphene oxide nanoparticles in saturated clean and iron oxide-coated sand columns

In this study, transport behaviors of graphene oxide (GO) in saturated uncoated (i.e., clean sand) and goethite-coated sand porous media were examined as a function of the phosphate. We found that phosphate enhanced the transport of GO over a wide range of solution chemistry (i.e., pH 5.0–9.0 and the presence of 10 mmol/L Na~+ or 0.5 mmol/L Ca~(2+)). The results were mainly ascribed to the increase of electrostatic repulsion between nanoparticles and porous media. Meanwhile, deposition site competition induced by the retained phosphate was another important mechanism leading to promote GO transport. Interestingly, when the phosphate concentration increased from 0.1 to 1.0 mmol/L, the transportenhancement effect of phosphate in goethite-coated sand was to a much larger extent than that in clean sand. The observations were primarily related to the difference in the total mass of retained phosphate between the iron oxide-coated sand and clean sand columns, which resulted in different degrees of the electrostatic repulsion and competitive effect of phosphate. When the background solution contained 0.5 mmol/L Ca~(2+), phosphate could be bind to sand/goethite-coated sand surface by cation bridging; and consequently, promoted competition between phosphate and nanoparticles for deposition sites, which was an important mechanism for the enhanced effect of phosphate. Moreover, the DLVO theory was applicable to describe GO transport behaviors in porous media in the absence or presence of phosphate. Taken together, these findings highlight the important status and role of phosphate on the transport and fate of colloidal graphene oxide in the subsurface environment.
Simultaneous removal of CO_2, NO_x and SO_x using single stage absorption column

Capturing flue gases often require multiple stages of scrubbing, increasing the capital and operating costs. So far, no attempt has been made to study the absorption characteristics of all the three gases (NO, SO_2and CO_2) in a single stage absorption unit at alkaline pH conditions. We have attempted to capture all the three gases with a single wet scrubbing column. The absorption of all three gases with sodium carbonate solution promoted with oxidizers was investigated in a tall absorption column. The absorbance was found to be 100% for CO_2, 30% for NO and 95% for SO_2respectively. The capture efficiency of sodium carbonate solution was increased by 40% for CO_2 loading, with the addition of oxidizer. Absorption kinetics and reaction pathways of all the three gases were discussed individually in detail.
Removing and recycling mercury from scrubbing solution produced in wet nonferrous metal smelting flue gas purification process

Wet purification technology for nonferrous metal smelting flue gas is important for mercury removal; however, this technology produces a large amounts of spent scrubbing solution that contain mercury. The mercury in these scrubbing solutions pose a great threat to the environment. Therefore, this research provides a novel strategy for removing and recycling mercury from the scrubbing solution, which is significant for decreasing mercury pollution while also allowing for the safe disposal of wastewater and a stable supply of mercury resources. Some critical parameters for the electrochemical reduction of mercury were studied in detail. Additionally, the electrodeposition dynamics and electroreduction mechanism for mercury were evaluated. Results suggested that over 92.4% of mercury could be removed from the scrubbing solution in the form of a Hg-Cu alloy under optimal conditions within 150 min and with a current efficiency of approximately 75%. Additionally, mercury electrodeposition was a quasi-reversible process, and the controlled step was the mass transport of the reactant. A pre-conversion step from Hg(Tu)_4~(2+) to Hg(Tu)_3~(2+) before mercury electroreduction was necessary. Then, the formed Hg(Tu)_3~(2+) on the cathode surface gained electrons step by step. After electrodeposition, the mercury in the spent cathode could be recycled by thermal desorption. The results of the electrochemical reduction of mercury and subsequent recycling provides a practical and easy-to-adopt alternative for recycling mercury resources and decreasing mercury contamination.
The influence of China-Europe Railway Express on the production system of enterprises:A case study of TCL Poland Plant

The implementation of the Belt and Road Initiative and the increasing frequency of the China-Europe Railway Express(CER Express)have brought new improvement to the production system of enterprises along the Belt and Road regions.On the basis of summarizing the evolution of production system of enterprises,this paper takes TCL Poland Plant as an example to conduct an in-depth study on the characteristics of the plant's current production system and its differences from the original production system,and analyzes the impact of the CER Express on its current production system.Some conclusions can be drawn as follows.(1)CER Express had a great impact on the production system of TCL Poland Plant,which is mainly manifested in the following aspects.First,the transport of raw materials by CER Express improves the time efficiency and shortens the whole supply chain.Second,CER Express acts as a “moving inventory”,which realizes the flexibility of raw material inventory and “zero inventory” effect based on the punctual transport.Third,the time and inventory effects brought by CER Express speed up the response to European market.The comprehensive benefits brought by CER Express lead to a more punctual and lean production system,meet the diversified needs of consumers on account of product quality and diversification,and improve ability to expand European market.(2)On the basis of abandoning the original “Rigid Mass Production” system,we argue that TCL Poland Plant formed a unique production system—“Global Fluid Just-in-Time” which absorbed the essence of Toyota Production System based on the punctual transnational transportation of CER Express.(3)The differences between the current and the original production systems of TCL Poland Plant are mainly focused on the following aspects:the difference of transport and storage mode of raw materials,and the changes of production line,production mode and quality inspection organization,etc.
Analysis on geo-effects of China’s overseas industrial parks:A case study of Cambodia Sihanoukville Special Economic Zone

China’s overseas industrial parks contribute to political and economic cooperation,cultural exchange between home and host countries.Current studies mainly discuss the effect of overseas industrial parks from the perspective of institutional and cultural difference,multi-scale coupling,as well as key partnerships,while little attention has been paid to the comprehensive analysis of overseas industrial parks.Based on a theoretical framework,this paper explores the overall effect of China’s overseas industrial parks from the geo-effects perspective by using field interviews and a case study approach.The research shows that:(1)the geo-effects reveal the over effect of overseas industrial parks from the multiple and complementary dimensions of geopolitics,geo-economics,geo-society and geo-culture;(2)the Cambodia Sihanoukville Special Economic Zone,as a flagship BRI project,has produced the prominent and positive geo-effects;(3)the institutional-economic-cultural-environmental adaptability of overseas industrial parks is becoming important.Overseas industrial parks must be rooted in the politics,economy,society,and culture of host country;embedded in local social networks;balance the rights and interests of all stakeholders;and form the community of interests,community of destiny,and community of responsibility with political mutual trust,economic integration,cultural inclusiveness,and social harmony.The paper not only deepens the understanding about the overall effect of overseas industrial parks,but also provides decision support and theoretical reference for government policy makers and the overseas investment of enterprises.
西西里岛

西西里岛(Sicily Island)是地中海最大的岛屿,东北隔墨西拿海峡与亚平宁半岛相望,最近距离只有3.12 km;西南与北非距离144 km;南面距离戈佐岛81 km。西西里岛周围还有一些小岛,如潘泰莱里亚岛、乌斯蒂卡岛、利帕里群岛、埃加迪群岛和佩拉杰群岛等。行政区划上,西西里岛属于意大利的西西里大区。位于岛屿西北海岸的港口城市--巴勒莫(Palermo)是西西里大区的首府。
复苏性主动脉球囊阻断术在创伤失血性休克中的应用

创伤是45岁以下人群的主要死亡原因,创伤出血在可预防的死亡原因中占据了重要比例,是最能够进行针对性干预的病因之一。不可压迫性躯干出血(non-compressible torso hemorrhage,NCTH)包括肺脏、实体器官、躯干轴向血管、骨折骨盆以及发生在腹盆股结合部的出血,因无法有效使用止血带,病死率高达45%。NCTH传统通过复苏性开胸手术(resuscitative thoracotomy,RT)进行主动脉交叉钳夹(aortic cross clamping,ACC)以有效地控制夹闭点以下的出血,虽然该方法同时适用于其他多种类型的出血,但需要较长的准备时间且技术要求较高。复苏性主动脉球囊阻断术(resuscitative endovascular balloon occlusion of the aorta,REBOA)是一项近年来重新受到关注的止血技术,通过股动脉入路将球囊导管置入主动脉,并根据情况在降主动脉将球囊充盈阻断血流后控制阻断点以下部位出血。因其微创性和便捷性,REBOA近年来作为RT行ACC救治NCTH的替代方案很受推崇。同时,作为临时性桥接止血技术,REBOA在无法及时接治至高级创伤中心的发展中国家中可能有更大的应用优势。因此本文旨在介绍REBOA的技术规范、优点和缺陷,以提高其在创伤NCTH处置中的应用。
不同强度运动对血液透析患者肌少症康复效果的研究进展

维持性血液透析(maintenance hemodialysis, MHD)患者年龄呈现老龄化的趋势,同时由于其肾衰竭、透析治疗及多种并发症等因素影响,可以出现选择性肌肉结构改变、力量降低和明显的肌萎缩,称之为尿毒症性肌少症[1]。肌少症是一种肌肉质量和数量都减少的疾病,其与身体功能恶化、生活质量下降和死亡风险增加有关。肌少症可分为原发性和继发性肌少症。原发性肌少症主要与高龄有关,而继发性肌少症与患者体力活动水平、严重器官衰竭、炎症、恶性肿瘤或营养状况恶化等有关。MHD患者中原发性与继发性肌少症的因素可同时存在,因此患病率高于普通人群。据报道,MHD患者中肌少症的患病率为13.7%~73.5%,患者易发生跌倒、骨折等不良结局,增加其致残率及死亡率[2]。目前,运动疗法广泛应用于MHD患者肌少症的预防和治疗[3],该疗法的临床效果与运动类型、运动强度、运动时间、运动频率4个因素相关,而运动强度作为运动疗法的核心要素,是保证患者运动安全性和增加肌少症康复疗效的重要因素[4]。本文就血液透析肌少症患者不同强度运动康复效果的研究进展进行综述,旨在为医务工作者指导MHD肌少症患者进行安全有效的运动提供依据。
恰当进行黄体支持,避免过度医疗

早在20世纪80年代初辅助生殖技术(assisted reproductive technique,ART)应用的前期,生殖内分泌研究者就已经认识到自然月经周期与取卵、促排卵周期之间的黄体功能存在差异,并进行了系列的基础研究。研究认为取卵周期中手术压力所致的高泌乳素血症以及取卵手术对颗粒细胞的抽吸可造成黄体功能不全,且促排卵周期中高雌激素对黄体生成素(LH)的反馈作用使得LH的脉冲分泌受到抑制,导致进一步的黄体功能不全,由此降低了胚胎的着床率,且导致了过高的流产率。虽然后期的研究排除了一过性压力性高泌乳素血症的影响,但随着促排卵方案的多样化,黄体功能的改变越发复杂,特别在促性腺激素释放激素拮抗剂(GnRH-ant)应用后,其对垂体的降调节直接抑制了LH的脉冲分泌,黄体功能进一步受损;此外,促排卵周期中取卵所获的颗粒细胞较之自然周期所获的颗粒细胞在类固醇激素的生成、LH受体的表达等方面均有下降,也是黄体功能不全的因素之一。黄体功能不全对ART临床结局的负性影响得到了临床实践的验证,对黄体功能不全进行支持治疗的必要性也逐步成为共识。 2015年的Cochrane分析指出,与空白对照组比较,进行黄体支持可获得良好的妊娠结局。然而,不同促排卵方案之间,GnRH-ant种类、剂量、使用时间的不同所形成的抑制深度、时间均不一样,且所涉及的个体差异、卵巢反应周期差异等因素众多,由此所致的黄体功能不全情况变得更为复杂。自20世纪80年代初至今,针对不同促排卵方案所用的黄体支持研究非常多,绝大多数的黄体支持方案均获得了良好的妊娠结局。
针刀治疗胸椎管狭窄症1例

综上所述,在患者尚未达到手术指征,早期症状尚不严重时,例如患者尚处在以胸背部疼痛为主诉的早期无特异性阶段(此阶段通常较为隐匿易被忽略),或仅以间歇性跛行症状为主时,则可利用针刀疗法进行治疗。脊柱相关疾病、慢性软组织损伤以及部分骨质增生性疾病均可利用针刀疗法进行治疗,以减轻患者痛苦并延缓其病情的进行性加重,且针刀治疗费用低,副作用小,易于熟悉操作,在胸椎椎管狭窄早期阶段不失一个为良好的治疗选择。希望本研究能为广大医者提供治疗胸椎椎管狭窄早期阶段的新思路。
专科护士开设护理门诊执业体验的质性研究

目的探讨专科护士在护理门诊工作中的真实感受,为加强护理门诊建设提供参考。方法采用目的抽样法,选取开设护理门诊的10名专科护士进行半结构式访谈,运用Colaizzi 7步分析法对访谈资料进行分析。结果门诊专科护士的执业体验提炼出工作开展被动(认同度低,权限与资源受限,门诊绩效不完善,面临风险)、促进学科发展(专业深度提高,引领专科发展,自我认同感提高)、门诊运行模式多样3个主题及所属的7个亚主题。结论专科护士在开设护理门诊的过程中面临一些障碍和挑战,同时可以促进自身发展。实践过程中需要不断地发现问题、总结经验,以促进护理门诊的长远发展。
折桂诺贝尔奖的神经科学家(1900年~ 1965年)

本文介绍总结了上世纪初期至上世纪60年代半个多世纪内神经科学领域内14位诺贝尔奖获得者的突出科学贡献。该文是发表于本刊2020年36卷第6期706 ~ 710页和2021年37卷第1期116 ~ 120页的《折桂诺贝尔奖的神经科学家》等两文的续篇。
滑车上肘肌致肘管综合征一例

综上所述,滑车上肘肌是一种不常见的引起肘管综合征的原因。可以表现为强烈的感觉、运动,甚至交感症状。这种情况下的具体手术治疗策略是有争议的。可以单独切除肌肉,也可以同时行尺神经前置术。
游离旋股外侧动脉皮瓣修复前臂热压伤

目的探讨采用游离旋股外侧动脉皮瓣修复前臂热压伤的临床效果。方法自2017年4月至2019年12月,我们采用游离旋股外侧动脉皮瓣修复前臂热压伤5例。术后根据肌腱损伤情况确定制动时间及功能锻炼时间。结果术后5例皮瓣均存活。术后所有患者均获得随访,时间为6~18个月,平均9个月,皮瓣外形良好,无明显臃肿,植皮区无破溃。结论应用游离旋股外侧动脉皮瓣修复前臂热压伤术后临床疗效满意,供区并发症少,值得临床推广。
New insights into hydraulic fracturing fluids used for high-temperature wells

Current interest in deep, low-permeability formations (<10 md) demands accelerated development of high-temperature hydraulic fracturing technologies. Conventional guar systems break down above 300 °F and require higher polymer loadings to maintain thermal stability. However, higher polymer loadings generate more residue and damage to the proppant pack and the formation. To resolve these problems, a variety of high-temperature stabilizers are added to enhance the thermal stability of these fracturing fluids at temperatures above 300 °F. The focus of this work is to: (1) identify those additives that best enhance temperature stability of fracturing fluids and (2) study the rheological influence of incorporating these additives on the fracturing fluid systems. The experimental fracturing-fluid solutions were prepared at a total polymer concentration of 30 and 40 lb/1000 gal. Additives such as synthetic polymer, oxygen scavengers, crosslinkers, crosslinker delay additives, and pH buffers were examined in this work. Hydrated polymer solutions were crosslinked with a metallic crosslinker between 200 and 400 °F. Viscosity measurements were carried out in a highpressure/ high-temperature (HP/HT) rheometer to evaluate rheology and thermal stability. Results show that adding a synthetic polymer and a crosslinker with the slowest reaction rate improves the fracturing fluid thermal stability. Of the three other additives tested, oxygen scavengers showed the greatest enhancement to thermal stability while pH buffers showed the least. Through the addition of high-temperature stabilizing additives, the fracturing fluid in this work was able to maintain a stable performance at temperatures up to 400 °F. Maintaining the thermal stability of fracturing fluids at a lower polymer loading remains a challenge in the industry. This work proposes techniques that can be used to enhance the thermal stability of fracturing fluids. Deeper knowledge about these different techniques will allow for better additive development and application in the field.
Systematic oil flow modeling in the Quasi-3D approximation yields additional terms that allows for variable cross-section area tubing

A systematic model development for oil flow in quasi-3D (1D + 2D) is presented. Our approach provides a unified modeling scheme. Besides, additional terms are obtained, which allows for tubing area variation along the flow direction. The area variation can be modeled as analytic function or random fluctuation,as it could be the result of deposits or tubing internal surface roughness. The proposed approach can be used to obtain analytic solutions which provide physical insight into the phenomena under scrutiny, including the validation of software tools, sensor development and sensor placement. One starts from conservation laws as given by kinetic theory and applies the transverse averaging technique (TAT) to extract the one-dimensional approximation in formal grounds. To demonstrate its application, the steady-state Ramey's model, the Hasan's transient model and a simple two-phase model are generated from the obtained equations.
An approach to improve wellbore stability in active shale formations using nanomaterials

Drilling through active shale formations has been a challenging practice in the oil and gas industry for a long period of time, given the complexity of shale structure and its interaction with Water Based Muds (WBMs). Although there have been many additives and methodologies proposed for a safe drilling through shale formations using WBMs, little success has been reported to the application of these methods once tested under different field conditions. In this paper, a new WBM formulated by nanomaterials was proposed to stabilize active shale layers during drilling. A series of rheological, density,filtration loss, bentonite dispersion and shale recovery tests were conducted on the mud samples formulated by nanosilica and Nano Glass Flakes (NGFs). The results indicated that NGF, as a cheap but effective nanomaterial, is able to significantly reduce the flirtation loss without posing any significant impacts on the density and the rheology of WBMs. It also appeared that the bentonite molecules were incapable to either hydrate or disperse in the drilling fluid system in the presence of NGFs. It seems that NGFs can stabilize clay minerals and reduce the filtration loss as remarkably efficient additive, but caution must be taken to ensure that they are properly disperse in the WBMs.
Influences of bedding characteristics on the acoustic wave propagation characteristics of shales

The acoustic response characteristics of shales were investigated by the acoustic transmission experiment,which is the basis of solving geological and engineering problems using the seismic or logging information during the process of the exploration and development of shale gas reservoirs. Based on the theory of acoustic wave and the background of acoustic transmission experiment, the initial condition,vibration source condition, boundary condition and stability condition were constructed, and the numerical simulation of acoustic transmission experiment of shales were completed through Matlab programming. The results show that under the same bedding angle, the acoustic time and attenuation coefficient of shales shown positive correlation with the bedding density;whereas under the same bedding density, the variation laws of the acoustic time and the attenuation coefficient of shales were more complex with the change of the bedding angle, that is, the acoustic time and attenuation coefficient of shales increased first, then decreased and then increased again with the increase of the bedding angle.