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新疆多时间尺度干湿变化特征分析

水资源保护 2021年第2期37卷 43-48页

作者：宋玉鑫马军霞左其亭张志卓郑州大学水利科学与工程学院河南郑州450001 郑州市水资源与水环境重点实验室河南郑州450001 郑州大学水科学研究中心河南郑州450001

使用1963—2018年CRU TS v4.0.3逐月格点数据,通过计算新疆月、季、年不同时间尺度的标准化降水蒸散指数(SPEI)对干湿变化情况进行量化,并使用Mann-Kendall非参数检验、小波功率谱等方法对干湿指标的变化趋势与周期特征进行分析。结果表... 详细信息

使用1963—2018年CRU TS v4.0.3逐月格点数据,通过计算新疆月、季、年不同时间尺度的标准化降水蒸散指数(SPEI)对干湿变化情况进行量化,并使用Mann-Kendall非参数检验、小波功率谱等方法对干湿指标的变化趋势与周期特征进行分析。结果表明:新疆在1988年前后表现出了干旱向湿润的转变;SPEI变化趋势整体以上升趋势为主,仅在新疆的西南、东南部分地区呈现出下降趋势;不同时间尺度下,小波功率谱的SPEI及其变化周期基本相同,在20世纪80—90年代均可以在2~4 a和8~16 a周期内发现振荡的高能区。

关键词：标准化降水蒸散指数干湿变化 Mann-Kendall非参数检验小波功率谱新疆

大骨节病患者全膝关节置换术后炎症因子表达与疼痛程度相关性分析

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中华地方病学杂志 2019年第12期38卷 955-958页

作者：王展宋玉鑫钱耀文甘肃省人民医院骨科兰州730000

目的探讨大骨节病患者全膝关节置换术后炎症因子表达与疼痛程度的相关性。方法分别以2016年1月至2018年12月在甘肃省人民医院骨科进行全膝关节置换术治疗的49例大骨节病患者和55例膝关节骨关节炎患者作为大骨节病组和骨关节炎组,并选择... 详细信息

目的探讨大骨节病患者全膝关节置换术后炎症因子表达与疼痛程度的相关性。方法分别以2016年1月至2018年12月在甘肃省人民医院骨科进行全膝关节置换术治疗的49例大骨节病患者和55例膝关节骨关节炎患者作为大骨节病组和骨关节炎组,并选择同期进行健康体检的健康受试者50例为对照组。在大骨节病组、骨关节炎组患者进行全膝关节置换术治疗后7 d,采集2组患者及对照组受试者的空腹静脉血3 ml,采用酶联免疫吸附实验(ELISA)法检测各组人群血清中炎症因子白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)、C反应蛋白(CRP)的表达水平;分别采用视觉模拟评分(VAS)、膝关节功能评分(KSS)对3组人群的疼痛程度、膝关节功能进行评分比较;对大骨节病患者术后炎症因子表达水平与VAS、KSS评分进行相关性分析。结果大骨节病组、骨关节炎组和对照组人群血清中IL-6[(78.17±13.28)、(60.28±9.92)、(9.65±3.12)ng/L]、TNF-α[(126.67±15.83)、(105.29±12.76)、(21.09±5.82)ng/L]和CRP[(11.23±3.41)、(8.31±2.54)、(2.14±1.01)mg/L]水平组间比较差异有统计学意义(F=12.397、19.982、9.167,P均<0.05);VAS评分[(5.21±1.44)、(2.98±1.03)、(0.61±0.22)分]、KSS评分[(60.15±8.91)、(72.91±9.19)、(93.92±5.73)分]组间比较差异有统计学意义(F=21.092、16.743,P均<0.05)。相关性分析结果显示,大骨节病患者术后IL-6、TNF-α、CRP水平与VAS评分均呈正相关(r=0.517、0.498、0.522,P均<0.05),与KSS评分均呈负相关(r=-0.509、-0.514、-0.487,P均<0.05)。结论大骨节病患者全膝关节置换术后,炎症因子IL-6、TNF-α、CRP表达水平较高,且与患者术后疼痛程度和膝关节功能恢复状态存在相关性。

关键词：大骨节病全膝关节置换术炎症因子疼痛程度膝关节功能相关性分析

Long chain Acyl-CoA的基因编码荧光探针构建和时空特异性检测（英文）

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Long chain Acyl-CoA的基因编码荧光探针构建和时空特异性检测（...

Tectonic modes of mantle convection and their implications for Earth's tectonic evolution based on three-dimensional numerical simulations

第十一届全国化学生物学学术会议

作者： Meiqi Zhang Jiayuan Zhang yuxin song 王晶 State Key Laboratory of Natural and Biomimetic Drugs Department of Chemical BiologySchool of Pharmaceutical SciencesPeking University 北京大学

The interconversion of guanosine triphosphate(GTP) and guanosine diphosphate(GDP) is integral to a wide variety of biological cellular ***,analytical methods which directly detect the ratio of intracellular GTP and GDP concentrations have not been ***,we report GNEPS,a genetically encoded fluorescent sensor that enables real-time monitoring of the GTP:GDP ratio,which is a fusion protein comprising a eukaryotic G-protein and a circularly permuted yellow fluorescent *** has distinct fluorescence spectra between its GTP-bound and GDP-bound *** apparent fluorescence signal therefore depends upon the competitive binding of GTP and *** cell imaging experiments demonstrated that GNEPS can be used to monitor spatiotemporal changes in the intracellular GTP:GDP ratio in various cell types and organelles in response to metabolic *** anticipate that GNEPS will become a valuable tool for understanding the metabolic and regulatory contributions of guanosine nucleotides.

关键词： GTP:GDP ratio biosensor cell imaging

来源： cnki会议评论

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Science China Earth Sciences 2025年第1期68卷 270-296页

作者： song XIANG Jinshui HUANG Bingcheng WU School of Earth and Space Sciences University of Science and Technology of ChinaHefei230026China CAS Center of Excellence in Comparative Planetary Studies Hefei230026China

Five tectonic modes of mantle convection are obtained and analyzed with three-dimensional numerical models in a spherical shell *** five tectonic convective modes are non-plate mobile-lid,plate-like mobile-lid,episodic plate-like mobile-lid,episodic stagnant-lid,and stagnant-lid convective modes,*** typical characteristics of these five tectonic modes and their numerical classification criteria based on plateness,mobility,and their standard deviations are presented and *** results show that the yield stress of the lithosphere has profound effects on the tectonic convective *** the gradual increase of yield stress,the tectonic mode of mantle convection changes from one to another sequentially through the aforementioned five ***,as the Rayleigh number increases,the range of yield stress for the platelike mobile-lid convective mode decreases,and the dimensionless transition stress between different tectonic modes ***,the dimensional transition stress between the non-plate mobile-lid convective mode and plate-like mobile-lid convective mode increases with the increase of Rayleigh number,but decreases between other tectonic ***,we find that the transition stress between different tectonic modes is inversely proportional to the internal heating rate,with the transition stress decreasing as the internal heating rate *** fitting analysis of the transition stress between tectonic modes shows that Earth's current plate tectonics correspond to a lithospheric yield stress of 150–250 MPa,which aligns with the strength of serpentinized mantle rock determined by experimental *** the Archean mantle was 300℃warmer than it is today,then the Earth was in an episodic stagnant-lid convective *** tectonic evolution of the Earth's surface is closely related to the lithospheric strength and the process of thermal *** the lithospheric strength was only 150 MPa,plate tecton

关键词： Tectonic mode of mantle convection Plate-like mobile-lid convection Episodic plate-like mobile-lid convection Episodic stagnant-lid convection Plate tectonics and tectonic evolution of the Earth

Disordered hyperuniformity and thermal transport in monolayer amorphous carbon

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 145-152页

作者： Nianjie Liang Yuxi Wang Bai song Department of Energy and Resources Engineering Peking UniversityBeijing 100871China Department of Advanced Manufacturing and Robotics Peking UniversityBeijing 100871China

Disordered hyperuniformity(DHU)is a recently discovered novel state of amorphous systems characterized by strongly suppressed density fluctuations at large length scales as in crystalline materials,which offers great potential for achieving unusual mechanical,electronic,and photonic ***,despite the fundamental and technological importance of thermal transport in amorphous solids,the effect of DHU remains largely ***,we theoretically study thermal transport in a class of two-dimensional DHU materials—monolayer amorphous carbon(MAC).Beginning with a perfect graphene lattice,we continuously apply Stone-Wales transformations to generate a series of MAC models with varied degrees of disorder and defects,which are quantified through comprehensive structural analysis including the so-called hyperuniformity index(H),where a smaller H indicates a higher degree of ***,we conduct molecular dynamics simulations to obtain the thermal conductivity(κ).A significant correlation between the thermal transport behavior and degree of hyperuniformity is observed,with the room-temperatureκdecreasing from 26.3 to 5.3 W m^(-1)K^(-1)while H is tuned from 0.0004 to ***,two distinct transport regimes are identified,including a nearly-DHU regime at small H(<0.005)whereκdrops sharply and a non-DHU region at larger H whereκbecomes relatively ***-resolved analysis reveals longer lifetime and higher participation ratio for the heat carriers in nearly-DHU MAC,implying that the hidden long-range correlations could support extended modes that enhance *** work highlights the impact of DHU on the thermal properties of amorphous materials and represents a conceptual advancement that is worthy of future exploration.

关键词： disordered hyperuniformity thermal transport amorphous material two-dimensional monolayer amorphous carbon

Unifying Fixed Time and Prescribed Time Control for Strict-Feedback Nonlinear Systems

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IEEE/CAA Journal of Automatica Sinica 2025年第2期12卷 347-355页

作者： Xiang Chen Yujuan Wang Yongduan song the State Key Laboratory of Power Transmission Equipment & System Security and New Technology and School of Automation Chongqing University IEEE

This paper investigates the prescribed-time tracking control problem for a class of multi-input multi-output(MIMO)nonlinear strict-feedback systems subject to non-vanishing uncertainties. The inherent unmatched and non-vanishing uncertainties make the prescribed-time control problem become much more nontrivial. The solution to address the challenges mentioned above involves incorporating a prescribed-time filter, as opposed to a finite-time filter, and formulating a prescribed-time Lyapunov stability lemma(Lemma 5). The prescribed-time Lyapunov stability lemma is based on time axis shifting time-varying yet bounded gain, which establishes a novel link between the fixed-time and prescribed-time control method. This allows the restriction condition that the time-varying gain function must satisfy as imposed in most exist prescribed-time control works to be removed. Under the proposed control method, the desire trajectory is ensured to closely track the output of the system in prescribed time. The effectiveness of the theoretical results are verified through numerical simulation.

关键词： Prescribed-time control prescribed-time filter robust control state feedback strict-feedback systems

阿仑磷酸钠利于老年胫骨外侧平台劈裂塌陷骨折术后恢复

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中华关节外科杂志（电子版） 2019年第2期13卷 242-244,247页

作者：王展宋玉鑫钱耀文甘肃省人民医院

目的研究老年SchatzkerⅡ型胫骨平台骨折术后,开始抗骨质疏松治疗的时机与膝关节功能恢复的关系。方法前瞻性分析2017年1月至2018年1月在甘肃省人民医院接受手术治疗的单侧胫骨平台SchatzkerⅡ型骨折的老年患者。按照开始口服阿仑膦酸... 详细信息

目的研究老年SchatzkerⅡ型胫骨平台骨折术后,开始抗骨质疏松治疗的时机与膝关节功能恢复的关系。方法前瞻性分析2017年1月至2018年1月在甘肃省人民医院接受手术治疗的单侧胫骨平台SchatzkerⅡ型骨折的老年患者。按照开始口服阿仑膦酸钠抗骨质疏松的时机,分为术后1周内、术后3个月后2组,比较2组患者在停用阿仑膦酸钠3个月后的膝创伤与关节炎评分(KOOS)。结果共纳入研究对象33例,术后1周内、术后3个月后开始口服阿仑膦酸钠的分别为19例、14例患者。2组患者停用阿仑膦酸钠3个月后,测得KOOS总分的中位值分别为87(82,89)分、63(56,66)分,Mann-Whitney U检验P<0.05,差异具有统计学意义。结论老年SchatzkerⅡ型胫骨平台骨折术后,术后1周内开始口服阿仑膦酸钠的膝关节功能恢复,优于术后3个月后开始口服。

关键词：胫骨骨折关节内骨折骨质疏松性骨折药物疗法老年人

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早期护理干预对脑出血患者肺部感染的影响

中国卫生标准管理 2015年第5期6卷 197-198页

作者：宋玉新阜新市中心医院 123000

目的观察早期护理干预对脑出血患者肺部感染的影响方法选取2013年6月～2014年5月在本院收治的110例脑出血患者，将其随机分为研究组和对照组，每组均为55例，对照组予以常规护理，研究组在对照组的基础上，予以早期护理干预，比较两组... 详细信息

目的观察早期护理干预对脑出血患者肺部感染的影响方法选取2013年6月～2014年5月在本院收治的110例脑出血患者，将其随机分为研究组和对照组，每组均为55例，对照组予以常规护理，研究组在对照组的基础上，予以早期护理干预，比较两组的肺部感染发生情况以及并发症情况结果研究组的肺部感染率5．45％明显比对照组2182％少，两组差异较为显著（P〈0.05）结论时脑出血患者肺部感染予以早期护理干预的临床效果较为显著.

关键词：早期护理干预脑出血肺部感染

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不同食用菌对猕猴桃枝木质纤维素降解的比较

北方园艺 2022年第5期 111-118页

作者：司徒成余天华宋宇欣贵州师范大学生命科学学院贵州贵阳550025

以香菇、平菇、秀珍菇等7种食用菌为研究对象,通过比较菌丝生长状况、木质纤维素降解酶活性和木质纤维素含量,探讨不同食用菌对猕猴桃枝中木质纤维素的降解能力,以期为进一步利用猕猴桃枝生物质提供参考依据。结果表明:猕猴桃枝可作为7... 详细信息

以香菇、平菇、秀珍菇等7种食用菌为研究对象,通过比较菌丝生长状况、木质纤维素降解酶活性和木质纤维素含量,探讨不同食用菌对猕猴桃枝中木质纤维素的降解能力,以期为进一步利用猕猴桃枝生物质提供参考依据。结果表明:猕猴桃枝可作为7种食用菌栽培的原料,但生长适应性不同,食用菌对猕猴桃枝基质中木质纤维素的降解具有一定的选择性;秀珍菇选择性降解木质素效果最佳,栽培20 d后木质素降解率达35.6%;平菇对基质中纤维素降解作用最好,栽培25 d时纤维素降解率达48.3%;鹿角灵芝对基质中半纤维素降解作用最强,栽培30 d时降解率达68.3%。

关键词：食用菌猕猴桃枝木质纤维素降解