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机器人与传统透视辅助内固定手术治疗强直性脊柱炎胸腰椎骨折的回顾性研究

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中国修复重建外科杂志 2024年第8期38卷 929-934页

作者：袁伟刘欣春丛琳朱海涛崔璀裴磊王翰朱悦中国医科大学附属第一医院骨科沈阳110001

目的比较机器人辅助微创与传统透视辅助开放后路内固定手术治疗强直性脊柱炎(ankylosing spondylitis,AS)胸腰椎骨折的临床疗效。方法回顾性分析2016年12月—2023年12月收治且符合选择标准的21例AS胸腰椎骨折患者临床资料。其中10例接... 详细信息

目的比较机器人辅助微创与传统透视辅助开放后路内固定手术治疗强直性脊柱炎(ankylosing spondylitis,AS)胸腰椎骨折的临床疗效。方法回顾性分析2016年12月—2023年12月收治且符合选择标准的21例AS胸腰椎骨折患者临床资料。其中10例接受机器人辅助微创后路内固定手术(机器人组),11例接受传统透视辅助开放后路内固定手术(透视组)。两组患者性别、年龄、骨折椎体节段分布、骨折AO分型、受伤至手术时间以及术前疼痛视觉模拟评分(VAS)、美国脊髓损伤学会(ASIA)分级等基线资料比较,差异均无统计学意义(P>0.05)。记录两组手术时间、术中出血量、辐射暴露时间、辐射剂量、住院时间、并发症发生情况;基于术后1周内CT参照Gertzbein-Robbins标准评价螺钉植入精准度;随访期间采用VAS评分和ASIA分级评价疼痛及神经功能状态。结果两组手术均顺利完成,手术时间差异无统计学意义(P>0.05);机器人组术中出血量及住院时间均较透视组减少,辐射暴露时间及辐射剂量增加,差异均有统计学意义(P0.05)。透视组1例发生手术部位深部感染、1例下肢深静脉血栓形成,机器人组无并发症发生,两组并发症发生率比较差异无统计学意义(P>0.05)。结论机器人辅助微创手术和传统透视开放手术治疗AS胸腰椎骨折均可获得较好疗效。但与后者相比,前者在减少术中出血量、缩短住院时间、提高椎弓根螺钉植入准确性等方面更具优势。

关键词：机器人手术胸腰椎骨折强直性脊柱炎内固定

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帕米尔高原黑碳气溶胶浓度特征与溯源分析

中国沙漠 2024年第2期44卷 66-77页

作者：汤成鑫康永德陈红娜杜新甜王敏仲何清刘涛刘新春新疆大学生态与环境学院新疆乌鲁木齐830046 中国气象局乌鲁木齐沙漠气象研究所塔克拉玛干沙漠气象国家野外科学观测研究站/新疆沙漠气象与沙尘暴重点实验室/中国气象局树木年轮理化研究重点实验室新疆乌鲁木齐830002 兰州理工大学甘肃兰州730050 新疆维吾尔自治区乌鲁木齐生态环境监测站新疆乌鲁木齐830011 塔什库尔干塔吉克自治县气象局新疆塔什库尔干845250

帕米尔高原作为“中巴经济走廊”建设的关键区域,毗邻干旱半干旱沙漠地带,荒漠化严重,容易发生起沙现象。为研究帕米尔高原黑碳不同时间尺度上的浓度变化特征和潜在源区,利用AE-33黑碳仪对帕米尔高原2019年3月至2022年12月的黑碳质量浓... 详细信息

帕米尔高原作为“中巴经济走廊”建设的关键区域,毗邻干旱半干旱沙漠地带,荒漠化严重,容易发生起沙现象。为研究帕米尔高原黑碳不同时间尺度上的浓度变化特征和潜在源区,利用AE-33黑碳仪对帕米尔高原2019年3月至2022年12月的黑碳质量浓度进行连续观测,利用HYPSLIT后向轨迹模型对观测期间内的黑碳进行聚类分析、潜在来源贡献因子分析(PSCF)和浓度权重轨迹分析(CWT)。结果表明:(1)2019年3月至2022年12月黑碳浓度呈现波动下降趋势,黑碳排放量少,空气清洁度高;日变化呈双峰型分布,峰值分别出现在09:00和20:00。(2)黑碳浓度在季节上呈现冬季(713.33±126.16 ng·m^(-3))>秋季(648.00±70.23 ng·m^(-3))>春季(403.33±30.64 ng·m^(-3))>夏季(390.67±32.89 ng·m^(-3))的变化规律,境外污染排放和季节性自然环境变化是黑碳浓度变化的主要原因。(3)黑碳浓度与温度(r=-0.522)、风速(r=-0.427)和湿度(r=0.345)相关性显著水平较高。(4)帕米尔高原黑碳浓度随季节变化差异明显,受远距离输送影响,四季气流主要源于境外。春季潜在源集中于巴基斯坦北部和克什米尔地区,秋季潜在源集中在乌兹别克斯坦苏尔汉河州、塔吉克斯坦杜尚别和戈尔诺-巴达赫尚自治州,冬季受境外排放源影响严重。帕米尔高原黑碳存在明显的时空浓度变化特征,且受气象因素及远距离输送影响潜在源区主要为境外地区。

关键词：黑碳气溶胶帕米尔高原后向轨迹模型潜在源

Long noncoding RNA(lncRNA)HOTAIR:Pathogenic roles and therapeutic opportunities in gastric cancer

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Genes & Diseases 2022年第5期9卷 1269-1280页

作者： Wencheng Kong Guang Yin Sixin Zheng xinchun liu Akao Zhu Panpan Yu Jian Zhang Yuqiang Shan Rongchao Ying Huicheng Jin Department of Gastroenterological Surgery Affiliated Hangzhou First People’s HospitalZhejiang University School of MedicineHangzhouZhejiang 310006PR China

Gastric cancer is one of the first malignant cancers in the world and a large number of people die every year due to this *** genetic and epigenetic risk factors have been identified that play a major role in gastric *** is an effective epigenetic agent known as long noncoding RNA(lncRNA).HOTAIR has been described to have biological functions in biochemical and cellular processes through interactions with many factors,leading to genomic stability,proliferation,survival,invasion,migration,metastasis,and drug *** the present article,we reviewed the prognostic value of the molecular mechanisms underlying the HOTAIR regulation and its function in the development of Gastric Cancer,whereas elucidation of HOTAIR–protein and HOTAIR–DNA interactions can be helpful in the identification of cancer processes,leading to the development of potential therapeutic strategies.

关键词： Expression Gastric cancer HOTAIR regulation Regulatory pathways

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北部湾盆地始新世古环境演化及沉积学意义

成都理工大学学报（自然科学版） 2024年第2期51卷 193-209页

作者：黄侠超钟瀚霆曹海洋肖伶俐陈莹王文楷常晓琳刘欣春王琛宇高凌雪侯明才自然资源部深时地理环境重建与应用重点实验室(成都理工大学) 成都610059 成都理工大学沉积地质研究院成都610059 油气藏地质及开发工程全国重点实验室(成都理工大学) 成都610059 中海油研究总院有限责任公司北京100028 西昌学院资源与环境学院四川西昌615000

保存在地层中的孢粉化石是研究古植被、古气候变化的关键对象之一,对于重建古环境、预测烃源岩富集、指导油气勘探具有重要意义。本研究选取中国南海北部湾盆地乌石凹陷的WS-X1井、WS-X2井、海中凹陷的WZ-X3井、福山凹陷的JH-X4井始新... 详细信息

保存在地层中的孢粉化石是研究古植被、古气候变化的关键对象之一,对于重建古环境、预测烃源岩富集、指导油气勘探具有重要意义。本研究选取中国南海北部湾盆地乌石凹陷的WS-X1井、WS-X2井、海中凹陷的WZ-X3井、福山凹陷的JH-X4井始新世时期的孢粉进行分析,以揭示北部湾盆地始新世植被特征及其反映的古环境演化。研究共发现孢粉化石4大类共49个孢粉类型,以被子植物花粉占优势,其中栎粉Quercoidites(microhenrici+minutus)、三沟粉Tricolpopollenites、桤木粉Alnipollenites含量较高;裸子植物中以松粉Pinuspollenites为主;蕨类植物孢子以水龙骨单缝孢Polypodiaceaesporites、紫萁孢Osmundacidites为主;同时出现大量藻类,以盘星藻Pediastrum为主。4口井中,始新世亚热带类群丰富且花粉含量高,孢粉组合反映了北部湾盆地该时期发育以常绿栎类丰富为特征的林地,盆地低山地带发育常绿和落叶阔叶混交林为主的森林植被,林下为蕨类植被,指示了北部湾盆地始新世时期为温暖湿润的热带—亚热带气候。始新世早期分布的喜热植被较晚期更多,且在始新世晚期出现喜温的植被,推测始新世早期到晚期气候呈逐渐变凉的趋势。此外,孢粉组合中出现大量藻类,推测当时的沉积环境主要以湖泊和滨海的河流沼泽相为主。通过对北部湾盆地始新世时期的孢粉资料进行分析,为该盆地始新世时期的气候研究提供了更多依据。

关键词：始新世孢粉古气候古植被北部湾盆地

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Innovative Electric Vehicle Body Design Based on Insurance Institute for Highway Safety Side Impact Conditions

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Automotive Innovation 2019年第3期2卷 201-211页

作者： xinchun liu Maoyan Liang Qiang Luo BYD Auto Industry Co. LtdLiujiaoBuiliding Area BNo.3009BYD RoadPingshanChina

A version of an electric vehicle was developed and designed for the US market on the basis of the required domestic body *** compared with the original car,the new car body design leads to two major technical ***,the installation of high-voltage components such as the battery pack and other new energy sources increases the vehicle weight and occupies a great deal of its structural space;this limits the impact paths and the use of traditional structural designs,which greatly increases the design ***,the USA,as an advanced automobile-using country,has well-developed laws and regulations for collision standards,vehicle operating conditions and evaluation *** a combination of butterfly diagram analysis,bending moment management,section forces and other computer-aided simulation and analysis techniques,this paper presents a body structure design that can achieve a“GOOD”evaluation under the US Insurance Institute for Highway Safety(IIHS)side impact body structure conditions by optimizing the force transfer path,the B-pillar deformation mode and the threshold support *** threshold support structure supports realization of the“GOOD”rating for IIHS side impact and helps the body to meet the crash requirements of the Federal Motor Vehicle Safety Standard FMVSS214 and the US New Car Assessment Program(NCAP)requirements for side impact at 32 km/h and 75°angular pole impact.

关键词： IIHS Side impact Electric vehicle Top safety PICK+rating Car body structure

Polybrominated diphenyl ethers in soil from three typical industrial areas in Beijing, China

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Journal of Environmental Sciences 2013年第12期25卷 2443-2450页

作者： Yongfei Zhang Shan Fu xinchun liu Zheng Li Yuan Dong State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of Sciences University of Chinese Academy of Sciences

Areas containing industrial facilities belonging to three different typical industries that may cause pollution by polybrominated diphenyl ethers （PBDEs） in Beijing, China were investigated. Specifically, the areas contained a solid waste incineration plant, a chemical factory, and a heat and power plant. Investigation of the pollution status of PBDEs in the surface soil from areas around these industries revealed the highest concentration of 42 PBDE congeners （118 ng/g, dry mass） at the solid waste incineration plant. In the other two plants, the highest concentrations were both 26 ng/g （dry mass）. Among the PBDE homologues, the PBDE contamination at all sites showed similar congener compositions, with BDE 209 being the dominant congener. Our findings established the first contamination status of three typical industrial areas in Beijing. Furthermore, the total concentrations of 42 PBDE congeners tended to decrease as the distance from the investigated plants increased. Overall, these plants were identified as potential pollution sources of PBDEs in Beijing. Moreover, Pearson correlation analysis revealed that the major PBDE source in Beijing may be associated with the technical deca-BDE and penta-BDE mixture. Based on the data obtained in this preliminary investigation, further study of the potential of these sources to emit PBDEs in Beijing is warranted.

关键词： different industry areas pollution source polybrominated diphenyl ethers soil

Near-surface sand-dust horizontal flux in Tazhong-the hinterland of the Taklimakan Desert

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Journal of Arid Land 2013年第2期5卷 199-206页

作者： XingHua YANG Qing HE Mamtimin ALI Wen HUO xinchun liu Institute of Desert Meteorology China Meteorological Administration Desert Atmosphere and Environment Observation Experiment of Taklimakan Station

Tazhong is the hinterland and a sandstorm high-frequency area of the Taklimakan Desert. However, little is known about the detailed time-series of aeolian sand transport in this area. An experiment to study the sand-dust horizontal flux of near-surface was carried out in Tazhong from January to December 2009. By measur- ing the sand-dust horizontal flux throughout sixteen sand-dust weather processes with a 200-cm tall Big Spring Number Eight （BSNE） sampler tower, we quantitatively analyzed the vertical variation of the sand-dust horizontal flux. And the total sand-dust horizontal flux of different time-series that passed through a section of 100 cm in width and 200 cm in height was estimated combining the data of saltation movement continuously recorded by piezo- electric saltation sensors （Sensit）. The results indicated that, in the surface layer ranging from 0-200 cm, the inten- sity of sand-dust horizontal flux decreased with the increase of the height, and the physical quantities obeyed power function well. The total sand-dust horizontal flux of the sixteen sand-dust weather processes that passed through a section of 100 cm in width and 200 cm in height was about 2,144.9 kg, the maximum of one sand-dust weather event was about 396.3 kg, and the annual total sand-dust horizontal flux was about 3,903.2 kg. The high levels of aeolian sand transport occurred during daytime, especially from 13：00 to 16：00 in the afternoon. We try to develop a new method for estimation of the detailed time-series of aeolian sand transport.

关键词： aeolian sand transport horizontal flux saltation movement Sensit Taklimakan Desert

Application of wind profiler data to rainfall analyses in Tazhong Oilfield region,Xinjiang,China

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Journal of Arid Land 2012年第4期4卷 369-377页

作者： MinZhong WANG WenShou WEI Qing HE xinchun liu ZhongJie ZHAO Urumqi Institute of Desert Meteorology China Meteorological Administration Urumqi 830002 China Taklimakan Desert Atmospheric Environment Observation Experimental Station Tazhong 841000 China Meteorological Office of Bayinguoleng Mongolian prefecture Kurler 841000 China

To improve the level of meteorological service for the Oilfield region in the Taklimakan Desert, the Urumqi Institute of Desert Meteorology of the China Meteorological Administration （CMA） conducted a detection experiment by means of wind profiling radar （WPR） in Tazhong Oilfield region of Xinjiang, China in July 2010. By using the wind profiler data obtained during the rainfall process on 27 July, this paper analyzed the wind field fea- tures and some related scientific issues of this weather event. The results indicated that：（1） wind profiler data had high temporal resolution and vertical spatial resolution, and could be used to analyze detailed vertical structures of rainfall processes and the characteristics of meso-scale systems. Before and after the rain event on 27 July, the wind field showed multi-layer vertical structures, having an obvious meso-scale wind shear line and three airflows from different directions, speeding up the motion of updraft convergence in the lower atmosphere. Besides, the wind directions before and after the rainfall changed inversely with increasing height. Before the rain, the winds blew clockwise, but after the onset of the rain, the wind directions became counterclockwise mainly; （2） the temperature advection derived from wind profiler data can reproduce the characteristics of low-level thermodynamic evolution in the process of rainfall, which is capable to reflect the variation trend of hydrostatic stability in the atmosphere. In the early stage of the precipitation on 27 July, the lower atmosphere was mainly affected by warm advection which had accumulated unstable energy for the rainfall event and was beneficial for the occurrence of updraft motion and precipitation; （3） the ＂large-value zone＂ of the radar reflectivity factor Z was virtually consistent with the onset and end of the rainfall, the height for the formation of rain cloud particles, and precipitation intensity. The reflectivity factor Z during this event varied app

关键词： wind profiling radar vertical atmospheric structure temperature advection radar reflectivity factor Z Tazhong Oiifield Taklimakan Desert

Relationships between chemical elements of PM2.5 and O3 in Shanghai atmosphere based on the 1-year monitoring observation

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Journal of Environmental Sciences 2020年第9期32卷 49-57页

作者： Junyang Zeng Luying Zhang Chuanhe Yao Tingting Xie Lanfang Rao Hui Lu xinchun liu Qingyue Wang Senlin Lu School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Institute of Desert Meteorology China Meteorological AdministrationUrumqi 83002China School of Science and Engineering Saitama UniversitySaitama 338-8570Japan

Mass level of fine particles(PM2.5)in main cities in China has decreased significantly in recent years due to implementation of Chinese Clean Air Action Plan since 2013,however,03 pollution is getting worse than before,especially in megacities such as in *** this work,O3 and PM2.5 were continuously monitored from May 27,2018 to March 31,*** data showed that the annual average concentration of PM2.5 and O3(O3-8 hr,maximum8-hour moving average of ozone days)was 39.35±35.74 and 86.49±41.65μg/m3,*** concentrations of PM2.5 showed clear seasonal trends,with higher concentrations in winter(83.36±18.66μg/m3)and lower concentrations in summer(19.85±7.23μg/m3),however,the seasonal trends of O3 were different with 103.75±41.77μg/m3 in summer and58.59±21.40μg/m3 in *** mass backward trajectory,analyzing results of potential source contribution function model and concentration weighted trajectory model implied that pollutants from northwestern China contributed significantly to the mass concentration of Shanghai PM2.5,while pollutants from areas of eastern coastal provinces and South China Sea contributed significantly to the mass level of ozone in Shanghai *** concentration of twenty-one elements in the PM2.5 were investigated,and their relationships with O3 were *** level of ozone had good correlation with that of Ba(r=0.64,p0.05),suggesting vehicle emission pollutants contribute to the increasing concentration of ozone in Shanghai atmosphere.

关键词： pollution ozone elements