mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Improved plane layout of stabilizing piles based on the piecewise function expression of the irregular driving force

The paper presents an improved plane layout for stabilizing piles based on a proposed piecewise function expression for the irregular driving force. Based on the specific morphological characteristics of a highway landslide, the piecewise function is used to calculate the irregular driving force by dividing the landslide into several sub-areas. Furthermore, the reasonable layout range and pile spacing can be obtained based on the piecewise function expression of the irregular driving force and on relevant research results of the plane layout for stabilizing piles. Therefore, an improved plane layout of stabilizing piles is presented in consideration of a piecewise function expression of the irregular driving force. A highway landslide located in eastern Guizhou Province, China, is analyzed as a case study using the proposed method. The results demonstrate that the theory presented in this paper provides improved economic benefits and can reduce the required number of stabilizing piles by 28.6% compared with the conventional plane layout scheme.
Changes of Protein and Lipid Contents,Amino Acid and Fatty Acid Compositions in Eggs and Yolk-Sac Larvae of American Shad(Alosa sapidissima)

To investigate the changes of the biochemical composition of American shad(Alosa sapidissima)eggs and larvae at embryonic and early larval stages,samples were collected at different development stages from artificial fertilization to the end of yolk absorption including 2 h,12 h and 30 h after fertilization and newly hatched larvae including 1 and 3 days after hatching.The composition of lipid,fatty acids,protein and amino acids were analyzed.The content of total protein exhibited a decreasing trend during embryogenesis and larval development,and a significant reduction was detected after hatching(P <0.05).The total lipid content remained relative stable.A significant reduction was detected in almost all amino acids after hatching except for glycine(P <0.05),while a significant decrease was found in the content of cysteine,proline,tyrosine,valine,isoleucine,leucine and phenylalanine during the yolk-sac phase(P <0.05).On the other hand,all the groups of fatty acids remained stable during the period of embryogenesis.But after hatching,a significant decrease was found in the content of C18:2n-6,C18:3n-6,SFA and ratio of EPA/ARA(P <0.05),while a significant increase was found in the content of C18:3n-3,C20:4n-6,C22:6n-3 and ratio of n-3/n-6(P <0.05).In conclusion,the combined data suggested that American shad utilizes the protein content as preferential energy substrates during embryonic and early larval developments with some specificity in the consumption of different amino acids.
Evaluation of Ordinary Least Square(OLS)and Geographically Weighted Regression(GWR)for Water Quality Monitoring:A Case Study for the Estimation of Salinity

Landsat-5 Thematic Mapper(TM)dataset have been used to estimate salinity in the coastal area of Hong Kong.Four adjacent Landsat TM images were used in this study,which was atmospherically corrected using the Second Simulation of the Satellite Signal in the Solar Spectrum(6S)radiative transfer code.The atmospherically corrected images were further used to develop models for salinity using Ordinary Least Square(OLS)regression and Geographically Weighted Regression(GWR)based on in situ data of October 2009.Results show that the coefficient of determination(R~2)of 0.42 between the OLS estimated and in situ measured salinity is much lower than that of the GWR model,which is two times higher(R~2 = 0.86).It indicates that the GWR model has more ability than the OLS regression model to predict salinity and show its spatial heterogeneity better.It was observed that the salinity was high in Deep Bay(north-western part of Hong Kong)which might be due to the industrial waste disposal,whereas the salinity was estimated to be constant(32 practical salinity units)towards the open sea.
Geochemical Constrains on MORB Composition and Magma Sources at East Pacific Rise Between 1°S and 2°S

The East Pacific Rise(EPR)is a typical fast spreading ridge.To gain a better understanding of the magmatism under ridges,Mid Ocean Ridge Basalts(MORBs)with remarkably heterogeneous compositions are obtained from(EPR)1°–2°S and multielement geochemical and radioisotope analyses are conducted.Results show that these MORBs have wide variation ranges in trace element concentrations and isotopic ratios.Sample 07 has low concentrations of incompatible elements,and very low ~(87)Sr/~(86)Sr,and high ~(143)Nd/~(144)Nd from 0.70213 to 0.702289 and 0.513234 to 0.513289,respectively.However,other samples show enrichment in incompatible elements to varying degrees,and medium values of ~(87)Sr/~(86)Sr and ~(143)Nd/~(144)Nd from 0.702440 to 0.702680 and 0.513086 to 0.513200,respectively.This study proposes that one depleted source and two enriched sources contribute to the formation of MORBs from EPR 1°–2°S.Samples 02 and 10 are formed by mixing between one enriched source and one depleted source,while sample 07 is crystallized from the depleted source with no mixing process involved.However,the formation of samples 06 and 11 are different,and thus further research is required to determine genesis.
Seismogenic Structures of the 2006 M_L4.0 Dangan Island Earthquake Offshore Hong Kong

The northern margin of the South China Sea, as a typical extensional continental margin, has relatively strong intraplate seismicity. Compared with the active zones of Nanao Island, Yangjiang, and Heyuan, seismicity in the Pearl River Estuary is relatively low. However, a M_L4.0 earthquake in 2006 occurred near Dangan Island (DI) offshore Hong Kong, and this site was adjacent to the source of the historical M5.8 earthquake in 1874. To reveal the seismogenic mechanism of intraplate earthquakes in DI, we systematically analyzed the structural characteristics in the source area of the 2006 DI earthquake using integrated 24-channel seismic profiles, onshore–offshore wide-angle seismic tomography, and natural earthquake parameters. We ascertained the locations of NW- and NE-trending faults in the DI sea and found that the NE-trending DI fault mainly dipped southeast at a high angle and cut through the crust with an obvious low-velocity anomaly. The NW-trending fault dipped southwest with a similar high angle. The 2006 DI earthquake was adjacent to the intersection of the NE- and NW-trending faults, which suggested that the intersection of the two faults with different strikes could provide a favorable condition for the generation and triggering of intraplate earthquakes. Crustal velocity model showed that the high-velocity anomaly was imaged in the west of DI, but a distinct entity with low-velocity anomaly in the upper crust and high-velocity anomaly in the lower crust was found in the south of DI. Both the 1874 and 2006 DI earthquakes occurred along the edge of the distinct entity. Two vertical cross-sections nearly perpendicular to the strikes of the intersecting faults revealed good spatial correlations between the 2006 DI earthquake and the low to high speed transition in the distinct entity. This result indicated that the transitional zone might be a weakly structural body that can store strain energy and release it as a brittle failure, resulting in an earthquake-prone area.
胸腔镜下肺段切除术治疗非小细胞肺癌的研究现状与进展

近年中国的癌症流行病学统计中,肺癌已经成为患病率和致死率最高的癌症。在全球范围约有1.41千万新发癌症病例,其中肺癌病例有180万,占癌症发病总数的13%,同时也是癌症中诊断率最高的病种。全球男性、发达国家女性癌症死亡率最高的也是肺癌。中国女性的肺癌发病率为20.4/10万,该数据已超过部分欧洲国家(女性吸烟率较高的)。
A New D-GCL for Unidirectional Motion with Large Displacement

Numerical simulations of unsteady flow problems with moving boundaries commonly require the use of geometric conservation law(GCL).However,in cases of unidirectional large mesh deformation,the cumulative error caused by the discrete procedure in GCL can significantly increase,and a direct consequence is that the calculated cell volume may become negative.To control the cumulative error,a new discrete GCL (D-GCL )is proposed. Unlike the original D-GCL,the proposed method uses the control volume analytically evaluated according to the grid motion at the time level $n$,instead of using the calculated value from the D-GCL itself.Error analysis indicates that the truncation error of the numerical scheme is guaranteed to be the same order as that obtained from the original D-GCL,while the accumulated error is greatly reduced.For validation,two challenging large deformation cases including a rotating circular cylinder case and a descending GAW-(1)two-element airfoil case are selected to be investigated.Good agreements are found between the calculated results and some other literature data,demonstrating the feasibility of the proposed D-GCL for unidirectional motions with large displacements.
Parametric Study of Low Frequency Broadband Rectilinear-to-Rotary Vibrational Energy Harvesting

A parametric study of a high-power-density dual resonator for achieving low frequency broadband electromagnetic energy harvesting is reported.The dual resonator consists of a rectilinear oscillator(${{\rm{R}}_{\rm{L}}}{\rm{O}}$)performing magnetic levitation and a rotary oscillator(${{\rm{R}}_{\rm{T}}}{\rm{O}}$)performing electromagnetic coupling through a stator and a rotor. Both oscillators,coupled by magnetic forces generated by a set of arc permanent magnets,radially magnetized and centro-symmetrically fixed onto the ${{\rm{R}}_{\rm{L}}}{\rm{O}}$ and the rotor of the ${{\rm{R}}_{\rm{T}}}{\rm{O}}$ achieve the reciprocating-to-rotary motion conversion and frequency up-conversion.Specifically,the dual resonator is able to convert stochastic reciprocating motion into controllable rotation,provide intrinsic frequency up-conversion,use non-contact magnetic coupling to provide near loss-free energy transfer and be configured into specific applications to obtain and maintain high-energy orbits of multi-stable energy harvesting.While solely focusing on developing a dual resonator provides substantial benefits,its dynamic behavior is unclear,thus electromagnetic-dynamic governing equations are derived,and a curve fitting model of restoring torque of ${{\rm{R}}_{\rm{T}}}{\rm{O}}$ under different repulsive magnets configurations are developed to predict key characteristics and to improve performance of the electromechanical system.Power analysis is carried out for providing aquantitative guidance of customizing the harvester to achieve an optimal power density.
Effects of Waxy Maize Relay Intercropping and Residue Retention on Rhizosphere Microbial Communities and Vegetable Yield in a Continuous Cropping System

Intercropping and residue retention contribute to high yield and quality of crops.However,their coupled effects on rhizospheric microbial communities under a continuous vegetable cropping system have not been adequately addressed.The objective of the present study was to assess the effects on soil microbial community and yields of waxy maize(Zea mays L.)intercropped with or without residue retention in a continuous broccoli(Brassica oleracea L.)cropping system,i.e.,relay intercropping of broccoli and waxy maize(B/M-B),relay intercropping of broccoli and waxy maize with residue retention(B/MR-B),and broccoli monoculture(B-B).The biomass yields of spring and autumn vegetables in B/MR-B were 16.3%–32.5% and 30.1%–46.1% higher than those of B-B,respectively.Autumn vegetable economic yields of B/MR-B were 28.2%–40.3% higher than B-B.The average well color development followed the order:B/MR-B >B/M-B >B-B.The Shannon index,Simpson index,and McIntosh index were higher in B/MR-B than under monoculture.A principal component analysis showed that microbial communities of B/MR-B soils differed from those of B/M-B and B-B soils.Carbon(C)sources utilized by the rhizosphere microorganisms were mainly carbohydrates,carboxylic acids,amino acids,and polymers;however,the C sources for the soil microbial community differed between intercropping and monoculture.The communities from B/MR-B preferred amino acids and polymers.Available nitrogen(N),potassium(K),and phosphorus(P)had an obvious impact on soil microbial community.Additionally,the C source utilization by microorganisms was significantly affected by pH and available K and P.Cropping system diversification through relay intercropping and residue retention effectively improved the functional diversity of the soil microbial communities and increased the yields of vegetables.
金毛狗脊多糖提取工艺的优化及其抗氧化活性

目的优化金毛狗脊多糖提取工艺,并评价其抗氧化活性。方法以提取温度、提取时间、料液比为影响因素,多糖提取率为评价指标,在单因素试验基础上通过正交试验优化提取工艺。然后,测定精制多糖对OH·、 ABTS·+、DPPH·的清除效果。结果最佳条件为提取温度80 ℃,提取时间50 min,料液比1 : 50。在精制多糖质量浓度为2 mg /mL时,对OH·、ABTS·+、DPPH·的清除率分别为36.4%、70.0%、65.4%。结论该方法简便可靠,金毛狗脊多糖有一定抗氧化活性。
非小细胞肺癌EGFR 19外显子罕见突变病例1例

在NSCLC中,EGFR 19外显子常见突变表示患者对表皮生长因子受体酪氨酸酶抑制剂(epidermal growth factor recep-tor-tyrosine kinase inhibitor,EGFR-TKI)药物为高敏感,由于发生罕见突变的患者病例数较少,且类型各异,因此尚无对发生罕见突变患者的靶向用药及治疗指导。但是,一些研究中指出罕见突变对EGFR-TKI药物表现出一定的敏感性。本例患者术后,先进行化疗,病情未得到控制,出现脑转移。因此患者于2016年2月份接受易瑞沙靶向治疗,至今已有一年多的时间,病情得到了有效的控制。综上所述,此EGFR基因19外显子罕见突变的患者对EGFR-TKI药物的反应性好,可对病情起到明显控制作用。因此,在NSCLC中EGFR基因19外显子罕见突变不容忽视。因其意义尚不明确,这就要求分子病理医生在工作中多积累数据,并在临床医生的配合下密切随访患者的治疗和病情进展情况,以达到后期指导此类罕见突变类型患者靶向治疗的目的。
铜及铜合金无硝酸光亮酸洗工艺应用

传统的铜件酸洗,也叫铜件化学抛光,大多使用浓硝酸、浓硫酸和少量盐酸的混合液。但“三酸”处理瞬时产生的NO_x气体会造成大气污染。如何控制铜件酸洗中的NO_x气体,成为人们关心的话题。如果酸洗工艺中不使用硝酸,那么彻底消除NOx气体将成为可能。
Overview of Graphene as Anode in Lithium-Ion Batteries

Graphene, as a fabulously new-emerging carbonaceous material with an ideal two-dimensional rigid honeycomb structure, has drawn extensive attention in the field of material science due to extraordinary properties, including mechanical robustness, large specific surface area, desirable flexibility, and high electronic conductivity. In particular, as an auxiliary material of electrode materials, it has the potential to improve the performance of lithium-ion batteries. However, wide utilization of graphene in lithium-ion batteries is not implemented since tremendous challenges and issues, such as quality, quantity, and cost concerns, hinder its commercialization. There remains a debate whether graphene can act as an impetus in the evolution of lithium-ion batteries. In this review, we summarize the desirable properties, several common synthesis methods as well as applications of graphene as the anode in lithium-ion batteries, seeking to provide insightful guidelines for further development of graphene-based lithium-ion batteries.
Automatic ~(40)Ar/~(39)Ar Dating Techniques Using Multicollector ARGUS VI Noble Gas Mass Spectrometer with Self-Made Peripheral Apparatus

A new fully automatic ~(40)Ar/~(39)Ar laboratory with a Thermo Scientific© ARGUS VI mass spectrometer has been established in China University of Geosciences (Wuhan). We designed and developed a mini efficient preparation system (80 mL), a CO_2 laser for heating samples, a crusher for extracting fluid inclusions within K-poor minerals and an air reservoir (31 L) and pipette (0.1 mL) system. The ARGUS VI mass spectrometer is operated by the Qtegra Noble Gas software, which can control the peripheral accessories, such as pneumatic valves, CO_2 laser and crusher through a PeriCon (peripheral controller). The experimental procedures of atmospheric argon analyses, ~(40)Ar/~(39)Ar dating by laser stepwise heating and by progressive crushing in vacuo, can be fully automatically performed. The weighted mean of atmospheric ~(40)Ar/~(36)Ar ratios is 302.22±0.03 (1s, MSWD=0.74, n=200), indicating that air reservoir and pipette system and the whole instrument system are very stable. This laboratory is a successful pioneer example in China to establish a new noble gas laboratory with self-made peripheral accessories expect for the mass spectrometer.
地氟醚药理特性及其临床应用的研究进展

地氟醚是一种新型的吸入性麻醉剂,其结构虽与七氟醚等卤代吸入性麻醉剂相似,但药理特性却有较大差异。地氟醚血气分配系数和组织溶解度是现有吸入性麻醉剂中最低的,与其他吸入性麻醉剂比较,地氟醚具有麻醉深度易于调控和苏醒快的特点。近几年,国外对于地氟醚在临床麻醉中的应用以及与其他药物的协同作用研究越来越多,国内对地气氟醚的认识和应用较局限,且近年来尚无较全面的相关综述报道。本文从地氟醚药物结构和药理特性入手,结合近几年国内外的研究,分析地氟醚的临床应用进展,重点对地氟醚与其他吸入性麻醉剂的药理特性进行对比,分析其差异性。本文通过对地氟醚的药效学和药代动力学特点进行阐述,归纳其对呼吸、循环和中枢神经系统的作用机制及临床效果;并从老年、肥胖、儿童和肝肾功能不全等特殊人群,以及日间手术、长时间手术等特殊手术的角度,对地氟醚的临床适用范围进行总结,为地氟醚在临床应用的合理适用范围提供参考。
Time Scale of Partial Melting of KLB-1 Peridotite: Constrained from Experimental Observation and Thermodynamic Models

Partial melting experiments were carried on KLB-1 peridotite, a xenolith sample from the Earth's upper mantle, at 1.5 GPa and temperatures from 1 300 to 1 600 °C, with heating time varies from 1 to 30 min. We quantify the axial temperature gradient in the deformation-DIA apparatus (D-DIA) and constrain the time scale of partial melting by comparing experimental observations with calculated result from pMELTS program. The compositions of the liquid phase and the coexisting solid phases (clinopyroxene, orthopyroxene, and olivine) agree well with those calculated from pMELTS program, suggesting that local chemical equilibrium achieves during partial melting, although longer heating time is required to homogenize the bulk sample. The Mg~# (=Mg/(Mg+Fe) mol.%) of olivines from the 1-minute heating experiment changed continuously along the axial of the graphite capsule. A thermal gradient of 50 °C/mm was calculated by comparing the Mg~# of olivine grains with the output of pMELTS program. Olivine grains at the hot end of the graphite capsule from the three experiments heated at 1 400 °C but with different annealing time show consistence on Mg~#, indicating that partitioning of Fe~(2+) between the olivine grains and the silicate melt happened fast, and partial melting occurs in seconds.
Monolithically integrated stretchable photonics

Mechanically stretchable photonics provides a new geometric degree of freedom for photonic system design and foresees applications ranging from artificial skins to soft wearable electronics. Here we describe the design and experimental realization of the first single-mode stretchable photonic devices. These devices, made of chalcogenide glass and epoxy polymer materials, are monolithically integrated on elastomer substrates. To impart mechanical stretching capability to devices built using these intrinsically brittle materials,our design strategy involves local substrate stiffening to minimize shape deformation of critical photonic components, and interconnecting optical waveguides assuming a meandering Euler spiral geometry to mitigate radiative optical loss. Devices fabricated following such design can sustain 41% nominal tensile strain and 3000 stretching cycles without measurable degradation in optical performance. In addition,we present a rigorous analytical model to quantitatively predict stress-optical coupling behavior in waveguide devices of arbitrary geometry without using a single fitting parameter.
Light induces petal color change in Quisqualis indica (Combretaceae)

Petal color change, a common phenomenon in angiosperms, is induced by various environmental and endogenous factors. Interestingly, this phenomenon is important for attracting pollinators and further reproductive success. Quisqualis indica L (Combretaceae) is a tropical Asian climber that undergoes sequential petal color change from white to pink to red. This color changing process is thought to be a good strategy to attract more pollinators. However, the underlying physiological and biochemical mechanisms driving this petal color change phenomenon is still underexplored. In this context, we investigated whether changes in pH, pollination, light, temperature or ethylene mediate petal color change. We found that the detected changes in petal pH were not significant enough to induce color alterations. Additionally, pollination and temperatures of 20-30 ℃ did not alter the rate of petal color change; however, flowers did not open when exposed to constant temperatures at 15 ℃ or 35 ℃. Moreover, the application of ethylene inhibitor, i.e., silver thiosulphate, did not prevent color change. It is worth mentioning here that in our study we found light as a strong factor influencing the whole process of petal color change, as petals remained white under dark conditions. Altogether, the present study suggests that petal color change in Q. indica is induced by light and not by changes in petal pH, pollination, ethylene, or temperature, while extremely low or high temperatures affect flower anthesis. In summary, our findings represent the probable mechanism underlying the phenomenon of petal color change, which is important for understanding flower color evolution.
基于siman仿真人急诊思维模拟训练的评分系统建立

急诊的规范化培训目的不仅是能让规培医师掌握急危重症患者的病理生理、临床表现、基本治疗,并且由于急诊患者的特殊性,必须在极短的时间内对患者进行快速的评估,并采取合适有效的治疗措施。规培医师在处理急诊患者过程中,仍存在很大异质性,包括对基础理论、临床措置、医患交流、医护交流等各方面都存在不同程度的差异。
血清Copeptin、MMP-9及MEWS评分对老年重症肺炎患者的预后评估研究

老年重症肺炎(severe pneumonia, SP )是重症监护室常见的呼吸系统性疾病,其病情进展迅速,常常累及多个器官,加之老年人机体免疫功能下降,呼吸道防御功能减退,导致患者病死率高、预后较差。因此,如何早期评估老年重症肺炎患者的病情,改善其预后,一直是临床研究的热点。近期的研究发现,和肽素(C-terminal portion of pro-vasopressin,Copeptin)是预测重症患者住院30d病死率的独立危险因子,基质金属蛋白酶-9(matrix metalloproteinase-9, MMP-9 )参与社区获得性肺炎(community acquired pneumonia, CAP)的炎症反应过程并与患者的病情严重程度相关,改良早期预警评分(modified early warning score, MEWS )系统能早期发现重症患者潜在的病情变化,可为病情恶化提供预防措施。本研究通过监测儋州市人民医院346例老年SP患者血清Copeptin和MMP-9水平及MEWS评分变化,并进一步分析三者之间的相关性,探讨其对重症肺炎患者预后评估的价值。
microRNA-320对小鼠脑缺血-再灌注损伤的调控作用及其机制研究

卒中是我国致死率最高的流行病,在人群中的发病率不断上升,其中缺血性脑卒中约占60%~80%,而大脑中动脉闭塞是缺血性脑卒中的常见病因,可引起细胞内钙超载、酸中毒、细胞凋亡、缺血-再灌注损伤(I/R)等病理生理反应。如何抑制或减轻脑缺血-再灌注后病理反应是目前研究热点。
2015年度某省中毒住院病例流行病学特征分析

目的了解山东省中毒住院病例流行病学特点,为山东省中毒预防工作提供依据。方法收集2015年度山东省中毒住院患者的性别构成、年龄构成、职业构成、中毒原因、转归等情况,并进行系统统计分析。结果共收集中毒病例27 676例,中毒高发年龄40~69岁,男女性别比为0.86:1。其中气体中毒(35.14%)、农药中毒(27.05%)、药物中毒(14.44%)占中毒病例总数的前3位,三者之和占总数的76.64%(20 924例);农药中毒女性明显多于男性(X~2=271.32,P<0.01)。酒精中毒男性明显多于女性(X~2=330.21,P<0.01)。中毒患者职业排在前三位的是农民、工人、无业人员。中毒者以呼吸道吸入中毒为最常见,有11 020例(39.82%),经消化道摄入有10021例(36.21%)。72.74%的中毒患者治愈或好转出院。结论气体中毒、农药中毒、药物中毒是山东省中毒伤害的主要原因,是将来干预的重点领域;在这三种中毒患者中,女性明显多于男性,是将来干预的重点人群。
口服百草枯颗粒剂中毒一例

根据农业部、工信部、国家质检总局共同发布的1745号公告,2014年7月1日,撤销百草枯水剂登记和生产许可,停止生产。2016年7月1日停止百草枯水剂在国内销售和使用。2016年8月29日我科收治了1例口服百草枯颗粒中毒的患者,百草枯颗粒为某化工股份有限公司生产的含百草枯50%的颗粒剂,现将其临床特点及治疗经过报道如下。
从一氧化碳的生理效应看一氧化碳中毒

一氧化碳(CO)中毒可造成脑、心脏、肺等多脏器损伤,其发病率和病死率均占我国职业和非职业中毒的前列。在美国,每年有数千人发生CO中毒后就医,其中数百人死亡,由此导致的花费每年超过10亿美元。1912年Douglas等提出了CO中毒与血红蛋白(Hb)关系的经典学说,即CO中毒时S型的氧离曲线左移,Hb携氧能力下降,同时碳氧血红蛋白(COHb)结合的氧不易释放,最终造成组织缺氧。1917年Haldane提出高浓度或高分压氧是减轻CO中毒效应的最佳拮抗剂。自此,以COHb理论为中心的缺氧机制被广泛接受,也成为氧疗的合理原因。