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Establishment of a humanized ST6GAL1 mouse model for influenza research
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作者 Lyu Chao Han Feng +10 位作者 Gao Qian Lv Limin Lu Ziwei Lu Shuangshuang Li Xiaoyan Hu Yuechao Yang Mengjie Zhao Yingze Liu Jun Lu Xuancheng Duo Shuguang 《Animal Models and Experimental Medicine》 CAS CSCD 2024年第3期337-346,共10页
Background:This study aimed to construct and characterize a humanized influenza mouse model expressing hST6GAL1.Methods:Humanized fragments,consisting of the endothelial cell-specific K18 promoter,human ST6GAL1-encodi... Background:This study aimed to construct and characterize a humanized influenza mouse model expressing hST6GAL1.Methods:Humanized fragments,consisting of the endothelial cell-specific K18 promoter,human ST6GAL1-encoding gene,and luciferase gene,were microinjected into the fertilized eggs of mice.The manipulated embryos were transferred into the oviducts of pseudopregnant female mice.The offspring were identified using PCR.Mice exhibiting elevated expression of the hST6GAL1 gene were selectively bred for propagation,and in vivo analysis was performed for screening.Expression of the humanized gene was tested by performing immunohistochemical(IHC)analysis.Hematologic and biochemical analyses using the whole blood and serum of humanized hST6GAL1 mice were performed.Results:Successful integration of the human ST6GAL1 gene into the mouse genome led to the overexpression of human SiaT ST6GAL1.Seven mice were identified as carrying copies of the humanized gene,and the in vivo analysis indicated that hST6GAL1gene expression in positive mice mirrored influenza virus infection characteristics.The IHC results revealed that hST6GAL1 was expressed in the lungs of humanized mice.Moreover,the hematologic and biochemical parameters of the positive mice were within the normal range.Conclusion:A humanized influenza mouse model expressing the hST6GAL1 gene was successfully established and characterized. 展开更多
关键词 hST6GAL1 humanized mice influenza animal model
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Discovery of an enantiopure N-[2-hydroxy-3-phenyl piperazine propyl]-aromatic carboxamide derivative as highly selectiveα_(1D/1A)-adrenoceptor antagonist and homology modelling
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作者 Junjun Huang Ran Chen +8 位作者 Yajian Huang Hang Zhang Anran Zheng Qing Xiao Dan Wu Ruxia Duan Zhi Zhou Fei He Wei Yi 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第11期435-441,共7页
α_(1)-Adrenergic receptor(AR)blockers can be effective for the treatment of benign prostatic hyperplasia/lower urinary tract symptoms(BPH/LUTS),their usage is limited by cardiovascular-related side effects that are c... α_(1)-Adrenergic receptor(AR)blockers can be effective for the treatment of benign prostatic hyperplasia/lower urinary tract symptoms(BPH/LUTS),their usage is limited by cardiovascular-related side effects that are caused by the subtype nonselective nature or low selectivity of many current drugs.We previously reported that phenylpiperazine analogues with amide and propane linker were moderateα_(1D/1A)adrenoceptor antagonists and exhibited better anti-BPH effect than lead compound naftopidil(NAF)in vivo,however,with modestα_(1D/1A)-subtype selectivity.Herein,we replaced propane moiety with2-hydroxypropanol linker and synthesized twenty-seven racemic derivatives with modified aromatic and hetero aromatic groups.Of these new compounds,quinoline surrogate 17 exhibited extremely weak antagonistic affinity onα_(1B)in both cell-based calcium assay and tissue-based functional assay,so that elicited significantα_(1A/1B)andα_(1D/1B)selectivity.Intriguingly,the R enantiomer of 17 preferentially displayed superior anti-BPH effect in rat model compared with S-17,supporting ligand regulates the receptor in a highly stereospecific manner.Finally,the computer-aided modelling research was also performed in order to deeply understand the unique binding mode of R-17 in complex withα_(1A)and the subtype receptor selectivity for R-17 was also rationalized in this study.Taken together,our work enriched the diversity of phenylpiperazines for the treatment of BPH/LUTS,and provided a basis for discovery ofα_(1D/1A)-selective ligands. 展开更多
关键词 Benign prostatic hyperplasia α_(1)-AR antagonist Phenylpiperazine Homology modelling Subtype selectivity
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Tidal modeling based on satellite altimetry observations of TOPEX/ Poseidon, Jason1, Jason2, and Jason3 with high prediction capability: A case study of the Baltic Sea
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作者 Alireza A.Ardalan Asiyeh Hashemifaraz 《Geodesy and Geodynamics》 EI CSCD 2024年第4期404-418,共15页
This research aims to optimize the utilization of long-term sea level data from the TOPEX/Poseidon,Jason1,Jason2,and Jason3 altimetry missions for tidal modeling.We generate a time series of along-track observations a... This research aims to optimize the utilization of long-term sea level data from the TOPEX/Poseidon,Jason1,Jason2,and Jason3 altimetry missions for tidal modeling.We generate a time series of along-track observations and apply a developed method to produce tidal models with specific tidal constituents for each location.Our tidal modeling methodology follows an iterative process:partitioning sea surface height(SSH)observations into analysis/training and prediction/validation parts and ultimately identi-fying the set of tidal constituents that provide the best predictions at each time series location.The study focuses on developing 1256 time series along the altimetry tracks over the Baltic Sea,each with its own set of tidal constituents.Verification of the developed tidal models against the sSH observations within the prediction/validation part reveals mean absolute error(MAE)values ranging from 0.0334 m to 0.1349 m,with an average MAE of 0.089 m.The same validation process is conducted on the FES2014 and EOT20 global tidal models,demonstrating that our tidal model,referred to as BT23(short for Baltic Tide 2023),outperforms both models with an average MAE improvement of 0.0417 m and 0.0346 m,respectively.In addition to providing details on the development of the time series and the tidal modeling procedure,we offer the 1256 along-track time series and their associated tidal models as supplementary materials.We encourage the satellite altimetry community to utilize these resources for further research and applications. 展开更多
关键词 Satellitealtimetry Baltic Sea Ocean tide modeling Jason3 Jason2 Jason1 TOPEX/POSEIDON EOT20 FES2014
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An approach to estimate tree height using PolInSAR data constructed by the Sentinel-1 dual-pol SAR data and RVoG model
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作者 Yin Zhang Ding-Feng Duan 《Journal of Electronic Science and Technology》 EI CAS CSCD 2024年第3期69-79,共11页
We estimate tree heights using polarimetric interferometric synthetic aperture radar(PolInSAR)data constructed by the dual-polarization(dual-pol)SAR data and random volume over the ground(RVoG)model.Considering the Se... We estimate tree heights using polarimetric interferometric synthetic aperture radar(PolInSAR)data constructed by the dual-polarization(dual-pol)SAR data and random volume over the ground(RVoG)model.Considering the Sentinel-1 SAR dual-pol(SVV,vertically transmitted and vertically received and SVH,vertically transmitted and horizontally received)configuration,one notes that S_(HH),the horizontally transmitted and horizontally received scattering element,is unavailable.The S_(HH)data were constructed using the SVH data,and polarimetric SAR(PolSAR)data were obtained.The proposed approach was first verified in simulation with satisfactory results.It was next applied to construct PolInSAR data by a pair of dual-pol Sentinel-1A data at Duke Forest,North Carolina,USA.According to local observations and forest descriptions,the range of estimated tree heights was overall reasonable.Comparing the heights with the ICESat-2 tree heights at 23 sampling locations,relative errors of 5 points were within±30%.Errors of 8 points ranged from 30%to 40%,but errors of the remaining 10 points were>40%.The results should be encouraged as error reduction is possible.For instance,the construction of PolSAR data should not be limited to using SVH,and a combination of SVH and SVV should be explored.Also,an ensemble of tree heights derived from multiple PolInSAR data can be considered since tree heights do not vary much with time frame in months or one season. 展开更多
关键词 Constructed polarimetric SAR data Dual polarization Sentinel-1 SAR data Polarimetric interferometric SAR Random volume over the ground model Tree height estimation
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Numerical Models and Methods of Atmospheric Parameters Originating in the Formation of the Earth’s Climatic Cycle
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作者 Wend Dolean Arsène Ilboudo Kassoum Yamba +1 位作者 Windé Nongué Daniel Koumbem Issaka Ouédraogo 《Atmospheric and Climate Sciences》 2024年第2期277-286,共10页
Atmospheric models are physical equations based on the ideal gas law. Applied to the atmosphere, this law yields equations for water, vapor (gas), ice, air, humidity, dryness, fire, and heat, thus defining the model o... Atmospheric models are physical equations based on the ideal gas law. Applied to the atmosphere, this law yields equations for water, vapor (gas), ice, air, humidity, dryness, fire, and heat, thus defining the model of key atmospheric parameters. The distribution of these parameters across the entire planet Earth is the origin of the formation of the climatic cycle, which is a normal climatic variation. To do this, the Earth is divided into eight (8) parts according to the number of key parameters to be defined in a physical representation of the model. Following this distribution, numerical models calculate the constants for the formation of water, vapor, ice, dryness, thermal energy (fire), heat, air, and humidity. These models vary in complexity depending on the indirect trigonometric direction and simplicity in the sum of neighboring models. Note that the constants obtained from the equations yield 275.156˚K (2.006˚C) for water, 273.1596˚K (0.00963˚C) for vapor, 273.1633˚K (0.0133˚C) for ice, 0.00365 in/s for atmospheric dryness, 1.996 in<sup>2</sup>/s for humidity, 2.993 in<sup>2</sup>/s for air, 1 J for thermal energy of fire, and 0.9963 J for heat. In summary, this study aims to define the main parameters and natural phenomena contributing to the modification of planetary climate. . 展开更多
关键词 Atmospheric Parameter 1 Climatic Cycle 2 Numerical models 3
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Application of Modelica Based Multi- Domain Modeling and Simulation for Gravity-1
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作者 ZHANG Chi BU Xiangwei +3 位作者 XU Lijie WU Kao HOU Shiyuan XU Guoguang 《Aerospace China》 2024年第1期47-55,共9页
In the R&D phase of Gravity-1(YL-1), a multi-domain modeling and simulation technology based on Modelica language was introduced, which was a recent attempt in the practice of modeling and simulation method for la... In the R&D phase of Gravity-1(YL-1), a multi-domain modeling and simulation technology based on Modelica language was introduced, which was a recent attempt in the practice of modeling and simulation method for launch vehicles in China. It realizes a complex coupling model within a unified model for different domains, so that technologists can work on one model. It ensured the success of YL-1 first launch mission, supports rapid iteration, full validation, and tight design collaboration. 展开更多
关键词 modelICA Gravity-1 simulation modeling launch vehicle model
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基于Sentinel-1/2改进极化指数和纹理特征的土壤含盐量反演模型 被引量:1
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作者 张智韬 贺玉洁 +3 位作者 殷皓原 项茹 陈俊英 杜瑞麒 《农业机械学报》 EI CAS CSCD 北大核心 2024年第1期175-185,共11页
目前Sentinel-1/2协同反演植被土壤含盐量的研究大多是基于Sentinel-2光谱信息和Sentinel-1后向散射系数,没有考虑Sentinel-2光谱信息容易受土壤亮度等信息影响,Sentinel-1后向散射系数容易受土壤粗糙度和水分影响。为进一步提高Sentine... 目前Sentinel-1/2协同反演植被土壤含盐量的研究大多是基于Sentinel-2光谱信息和Sentinel-1后向散射系数,没有考虑Sentinel-2光谱信息容易受土壤亮度等信息影响,Sentinel-1后向散射系数容易受土壤粗糙度和水分影响。为进一步提高Sentinel-1/2协同反演植被土壤含盐量的精度,用水云模型对雷达卫星后向散射系数进行校正,消除植被影响;然后协同Sentinel-2纹理特征,基于VIP、OOB、PCA 3种变量筛选和RF、ELM、Cubist 3种机器学习回归模型构建植被土壤含盐量反演模型。研究结果表明:经过水云模型去除植被影响后的雷达后向散射系数及其极化组合指数与土壤含盐量的相关性有一定程度的提高。不同变量选择方法与不同机器学习方法耦合模型在反演土壤含盐量中,OOB变量筛选方法与RF、ELM和Cubist 3种机器学习方法的耦合模型精度最佳,建模集和验证集的R2都在0.750以上,且验证集的RMSE和MAE均最小;其中OOB-Cubist耦合模型精度最高,且R_(v)^(2)/R_(c)^(2)为0.955,具有良好的鲁棒性。研究可为机器学习协同物理模型、光学卫星协同雷达卫星在土壤含盐量反演中的进一步应用提供思路。 展开更多
关键词 土壤含盐量 Sentinel-1/2 纹理特征 水云模型 机器学习 改进极化指数
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利用“2+1+1”水稻后代材料鉴定模式选育抗倒伏、高食味水稻新品种松粳212
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作者 高洪儒 肖明纲 +4 位作者 刘宝海 孙中义 张擘 郑福余 赵北平 《北方水稻》 CAS 2024年第6期40-42,共3页
松粳212是黑龙江省农业科学院生物技术研究所以五优稻4号为母本、松粳12为父本进行人工杂交,利用“2+1+1”水稻后代材料鉴定模式选育出的抗倒伏、高食味粳稻新品种。该品种于2023年通过黑龙江省农作物品种审定委员会审定,适宜在黑龙江... 松粳212是黑龙江省农业科学院生物技术研究所以五优稻4号为母本、松粳12为父本进行人工杂交,利用“2+1+1”水稻后代材料鉴定模式选育出的抗倒伏、高食味粳稻新品种。该品种于2023年通过黑龙江省农作物品种审定委员会审定,适宜在黑龙江省第一积温带上限区域种植。倒伏会给水稻造成不同程度的减产及品质下降,水稻品种自身的抗倒伏能力是其维持正常生长和产量的关键。利用“2+1+1”水稻后代材料鉴定模式,可在高肥力压力下有效筛选出抗倒伏能力强的水稻品种。 展开更多
关键词 水稻新品种 松粳212 抗倒伏 选育 “2+1+1”水稻后代材料鉴定模式
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基于新型“1+X+N”人才培养模式的一流本科课程建设探索 被引量:1
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作者 刘璐玲 陈里 吴健学 《高教学刊》 2024年第19期25-28,共4页
为了适应时代的发展需求,响应国务院提出的在应用型本科高校启动“学历证书+若干职业技能等级证书”制度(即“1+X”证书制度)的试点工作,民办本科院校积极探索“1+X+N”人才培养新模式。在人才培养新模式下,省级一流本科课程光纤通信技... 为了适应时代的发展需求,响应国务院提出的在应用型本科高校启动“学历证书+若干职业技能等级证书”制度(即“1+X”证书制度)的试点工作,民办本科院校积极探索“1+X+N”人才培养新模式。在人才培养新模式下,省级一流本科课程光纤通信技术课程组从明确课程定位、推动教学改革、加大资源建设、优化教学内容与实施过程、推进课程思政、改善课程成绩评定等方面开展工作,努力提升学生在光纤通信方面的综合应用能力,培养出满足新时代通信发展需求的高质量人才。 展开更多
关键词 1+X+N”人才培养新模式 一流课程建设 课程思政 教学改革 教学评价
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1+X证书制度背景下“育训结合、能力递进、书证融通”育人模式的探索与实践 被引量:1
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作者 李雪梅 《化工管理》 2024年第16期34-37,共4页
2019年《国家职业教育改革实施方案》要求启动“学历证书+若干职业技能等级证书”制度。文章基于“1+X”证书制度下的书证融通在实施过程中存在的问题,从模块化课程体系构建、信息化资源与教材开发、平台搭建、师资队伍建设、考核评价... 2019年《国家职业教育改革实施方案》要求启动“学历证书+若干职业技能等级证书”制度。文章基于“1+X”证书制度下的书证融通在实施过程中存在的问题,从模块化课程体系构建、信息化资源与教材开发、平台搭建、师资队伍建设、考核评价体系、体制机制保障等方面开展研究,逐步构建学生、学校、行业、企业、社会多方共赢的良好局面,为实现新时代中国职业教育事业的全面优质发展奠定基础。 展开更多
关键词 职业教育 1+X证书制度 育人模式
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基于GF-1数据的耕地土壤镉(Cd)含量遥感估算方法
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作者 张龙其 郭云开 +1 位作者 董胜光 刘新良 《测绘通报》 CSCD 北大核心 2024年第3期8-12,94,共6页
本文采用多种光谱变换和回归分析方法探索了使用GF-1卫星影像监测耕地土壤镉(Cd)含量的可行性。首先针对获取的GF-1原始影像数据,在完成预处理及剔除植被信息后进行倒对数、平方根和反正弦平方根变换,生成4套光谱影像;然后分别用采样点... 本文采用多种光谱变换和回归分析方法探索了使用GF-1卫星影像监测耕地土壤镉(Cd)含量的可行性。首先针对获取的GF-1原始影像数据,在完成预处理及剔除植被信息后进行倒对数、平方根和反正弦平方根变换,生成4套光谱影像;然后分别用采样点5 m缓冲区内各套影像光谱统计值与Cd含量进行相关性分析和多种回归分析。选择模型决定系数最高(>95%)的反正弦平方根变换后的自适应重加权回归方法构建的线性回归模型作为遥感估算模型。遥感估算结果在稻田积水、边缘地带等出现了异常估算值;笔者分析原因后应用线性插值的方法得到最终估算结果。相关性分析和建模精度表明该方法是可行的,有望应用于实际土壤质量监测和土地管理中。 展开更多
关键词 耕地土壤 CD含量 GF-1 光谱特征 反演模型
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以专科护士为主导的“1+1+X”协同管理模式对稳定型心绞痛患者病情、自我管理能力的影响分析
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作者 王洪坤 李娅 方敏 《中外医疗》 2024年第23期135-139,共5页
目的研究以专科护士为主导的“1+1+X”协同管理模式对稳定型心绞痛患者病情、自我管理能力的影响。方法方便选取2021年3月—2023年3月聊城市第二人民医院心血管内科收治的86例稳定型心绞痛患者为研究对象,根据不同护理方法分为常规组和... 目的研究以专科护士为主导的“1+1+X”协同管理模式对稳定型心绞痛患者病情、自我管理能力的影响。方法方便选取2021年3月—2023年3月聊城市第二人民医院心血管内科收治的86例稳定型心绞痛患者为研究对象,根据不同护理方法分为常规组和协同管理组,各43例。常规组采用常规护理,协同管理组采用以专科护士为主导的“1+1+X”协同管理模式护理,两组均持续护理1个月。观察对比两组患者护理前后生活质量[健康调查简表(MOS Item Short Form Health Survey,SF-36)]、焦虑抑郁心理状况、自我管理能力[冠心病自我管理行为量表(Coronary Artery Disease Self-management Scale,CSMS)]。结果护理后,协同管理组SF-36量表评分高于常规组,差异有统计学意义(P<0.05);协同管理组焦虑自评量表(38.18±3.52)分、抑郁自评量表(39.21±3.24)分均优于常规组的(43.23±3.61)分、(45.03±3.69)分,差异有统计学意义(t=6.568、7.772,P均<0.05);协同管理组CSMS评分高于常规组,差异有统计学意义(P均<0.05)。结论以专科护士为主导的“1+1+X”协同管理模式应用于稳定型心绞痛患者护理可有效提升生活质量,改善不良心理状态,提高自我管理能力。 展开更多
关键词 专科护士为主导的“1+1+X”协同管理模式 稳定型心绞痛 自我管理
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“互联网+”背景下“1+X”证书制度融通人才培养模式优化探索
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作者 贾小伟 张丽丽 +1 位作者 吴丹 姬丽雯 《信息与电脑》 2024年第13期247-249,共3页
职业教育作为一种教育类型,侧重于实践技能和实际工作能力的培养,要求所培养的人才必须具有一定的文化水平和专业知识技能。“1+X”证书制度在制度层面上将学校与企业联系起来,相互合作,共同培养复合型技术人才。在“互联网+”背景下,... 职业教育作为一种教育类型,侧重于实践技能和实际工作能力的培养,要求所培养的人才必须具有一定的文化水平和专业知识技能。“1+X”证书制度在制度层面上将学校与企业联系起来,相互合作,共同培养复合型技术人才。在“互联网+”背景下,本文在职业教育领域中,通过实施目标融合、标准互通、校企协同、多元评价等措施,探索了“1+X”证书制度融通人才培养模式的优化思路与方法,旨在加强学校与企业的联系,培养企业需要的复合型技术人才。 展开更多
关键词 职业教育 1+X”证书制度 课证融通 人才培养模式
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Outlook of PINK1/Parkin signaling in molecular etiology of Parkinson's disease,with insights into Pink1 knockout models 被引量:3
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作者 Zhangting Wang See-Wing Chan +2 位作者 Hui Zhao Kai-Kei Miu Wai-Yee Chan 《Zoological Research》 SCIE CAS CSCD 2023年第3期559-576,共18页
Parkinson’s disease(PD)relates to defective mitochondrial quality control in the dopaminergic motor network.Genetic studies have revealed that PINK1 and Parkin mutations are indicative of a heightened propensity to P... Parkinson’s disease(PD)relates to defective mitochondrial quality control in the dopaminergic motor network.Genetic studies have revealed that PINK1 and Parkin mutations are indicative of a heightened propensity to PD onset,pinpointing mitophagy and inflammation as the culprit pathways involved in neuronal loss in the substantia nigra(SNpc).In a reciprocal manner,LRRK2 functions in the regulation of basal flux and inflammatory responses responsible for PINK1/Parkin-dependent mitophagy activation.Pharmacological intervention in these diseasemodifying pathways may facilitate the development of novel PD therapeutics,despite the current lack of an established drug evaluation model.As such,we reviewed the feasibility of employing the versatile global Pink1knockout(KO)rat model as a self-sufficient,spontaneous PD model for investigating both disease etiology and drug pharmacology.These rats retain clinical features encompassing basal mitophagic flux changes with PD progression.We demonstrate the versatility of this PD rat model based on the incorporation of additional experimental insults to recapitulate the proinflammatory responses observed in PD patients. 展开更多
关键词 Parkinson’s disease MITOPHAGY Inflammatory response Genetic model Pink1 KO rats
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医学院校思政课“1+3+N”教学实践探析
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作者 张国军 杨淑敏 《卫生职业教育》 2024年第19期55-59,共5页
“1+3+N”教学模式围绕医学院校特色、医学专业和医学生特点,基于移动互联技术,坚持以学生为中心,有机融合网络教学、课堂教学和实践教学3种集中教学形式,辅以N种分散教学形式,实现思政课与医学生医学梦的同频共振。学生通过网络课堂预... “1+3+N”教学模式围绕医学院校特色、医学专业和医学生特点,基于移动互联技术,坚持以学生为中心,有机融合网络教学、课堂教学和实践教学3种集中教学形式,辅以N种分散教学形式,实现思政课与医学生医学梦的同频共振。学生通过网络课堂预习基本知识点,教师在课堂教学中着重讲解重难点并解答学生预习遇到的问题,学生通过实践教学把所学理论知识内化于心、外化于行。小班讨论等N种分散教学形式旨在培养学生听、读、看、写、讲、行能力。“1+3+N”教学模式弥补了传统灌输式授课方式的短板,调动了医学生学习思政课的积极性和主动性。影响该教学模式实践效果的因素包括学校网络教学基础设施和信息化教学设备情况、师生相关技术掌握情况、网络教学管理情况、网络教学和课堂教学衔接情况、实践教学组织实施情况等,针对这些影响因素,采取相应优化策略,以提升教学效果。 展开更多
关键词 医学院校 思政课 1+3+N”教学模式
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塔里木盆地顺北1号断裂带奥陶系碳酸盐岩储层结构表征及三维地质建模
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作者 陈叔阳 何云峰 +3 位作者 王立鑫 尚浩杰 杨昕睿 尹艳树 《岩性油气藏》 CAS CSCD 北大核心 2024年第2期124-135,共12页
综合利用地震、测井、岩心以及动态生产资料,对塔里木盆地顺北1号断裂带断控型碳酸盐岩储集体的内部结构进行了层级划分;基于层级划分,通过地震资料属性提取与转换、深度学习、基于目标示性点过程模拟以及离散裂缝网络模拟(DFN)等方法... 综合利用地震、测井、岩心以及动态生产资料,对塔里木盆地顺北1号断裂带断控型碳酸盐岩储集体的内部结构进行了层级划分;基于层级划分,通过地震资料属性提取与转换、深度学习、基于目标示性点过程模拟以及离散裂缝网络模拟(DFN)等方法建立了三维地质模型,并以模型进行油气储量和油藏数值模拟,将拟合结果与实际生产数据进行对比。研究结果表明:(1)顺北1号断裂带奥陶系断控型储层按层级由大到小分为走滑断裂影响带、断控体、类洞穴、类洞穴内簇充填和裂缝带共5个层级。(2)走滑断裂影响带受应力差异影响具有分段性,可细分为挤压段、拉分段和平移段;断控体在拉分段发育断裂交会型、单支走滑型,在平移段发育双断裂交错型和两断裂交会型,在挤压段发育双断裂扭曲型和双断裂交会型,共有6种平面组合样式;类洞穴在地震剖面上呈串珠状反射特征;类洞穴内部分为栅体与栅间(基岩),其中栅体又可进一步分为簇(角砾带)、簇间(裂缝带),整体表现为栅状结构,簇的物性更好;裂缝带为类洞穴的主要储集空间,在簇内部比簇间更发育,在一间房组比鹰山组更发育,一间房组和鹰山组均以发育高角度裂缝为主,在两者连接处则以发育水平缝为主。(3)地质模型预测的油气储量与地质分析储量误差为1.75%,模型模拟的生产井地层压力及累产液结果与生产动态吻合度较高,拟合误差小于10%。 展开更多
关键词 走滑断裂带 断控体 类洞穴 碳酸盐岩储层 三维地质建模 深度学习 奥陶系 顺北1号断裂带 塔里木盆地
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1+X证书制度下Web前端开发人才培养模式探索——以海南软件职业技术学院为例
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作者 雷华军 邢益良 潘萍 《科教导刊》 2024年第25期59-61,共3页
Web前端开发职业技能等级证书是首批启动试点的6个1+X职业技能等级证书之一,海南软件职业技术学院是Web前端开发职业技能等级证书首批启动试点院校之一。文章以海南软件职业技术学院为例,研究了Web前端开发职业技能等级标准,分析了Web... Web前端开发职业技能等级证书是首批启动试点的6个1+X职业技能等级证书之一,海南软件职业技术学院是Web前端开发职业技能等级证书首批启动试点院校之一。文章以海南软件职业技术学院为例,研究了Web前端开发职业技能等级标准,分析了Web前端开发人才培养方案及其存在的问题,优化了基于1+X证书制度的人才培养模式和人才培养评价模式。 展开更多
关键词 1+X证书 Web前端开发 职业技能 人才培养模式 人才评价模式
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Application of Renewal Gray GM (1,1) Model to Prediction of Landslide Deformation 被引量:1
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作者 Zhaoyang Wang 《Journal of Geoscience and Environment Protection》 2017年第9期148-154,共7页
The gray renewal GM (1,1) landslide prediction model was established by improving the gray model. Based on the established model, the author has made prediction of landslide deformation to the Xiangjiapo landslide and... The gray renewal GM (1,1) landslide prediction model was established by improving the gray model. Based on the established model, the author has made prediction of landslide deformation to the Xiangjiapo landslide and the Lianziya dangerous rock body. The results show that the gray renewal GM (1,1) model can supplement the new information in time and remove the old information which reduces the meaning of the information because of time lapse. Therefore, the model is closer to reality. 展开更多
关键词 LANDSLIDE RENEWAL gray GM (1 1) model gray System THEORY
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1+1罗纹3D打印面料的制备
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作者 程燕婷 孟家光 +1 位作者 薛涛 支超 《针织工业》 北大核心 2024年第2期1-4,共4页
为满足近几年消费者对服装面料可持续创新的需求,丰富3D打印服装面料的结构和外观风格,以柔性聚乳酸为原材料,在3ds Max软件中,采用NURBS曲线建模方法,结合实物测量情况,对1+1罗纹组织进行三维模拟;通过探究分层厚度、打印温度、打印速... 为满足近几年消费者对服装面料可持续创新的需求,丰富3D打印服装面料的结构和外观风格,以柔性聚乳酸为原材料,在3ds Max软件中,采用NURBS曲线建模方法,结合实物测量情况,对1+1罗纹组织进行三维模拟;通过探究分层厚度、打印温度、打印速度、沉积方向对1+1罗纹3D打印面料拉伸性能的影响,确定出最优打印参数;通过FDM工艺,在最优打印参数下,对模拟的组织进行打印,得到1+1罗纹3D打印面料。该面料打印效果与模拟效果相同,线圈平整,无歪斜现象,面料表面无焦黄现象,可形象地表现出纱线的形态及服装的纹理效果,符合后疫情时代消费者对服装面料创新性和多元化的需求。 展开更多
关键词 3D打印面料 1+1罗纹 柔性聚乳酸 FDM技术
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基于Markov模型的胰高血糖素样肽1受体激动剂联合二甲双胍治疗2型糖尿病药物经济学评价 被引量:2
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作者 俞恬 刘少华 +4 位作者 魏安华 郭洁茹 张程亮 刘东 刘喆隆 《药物流行病学杂志》 CAS 2024年第4期388-401,共14页
目的 对胰高血糖素样肽1受体激动剂(GLP-1RA)联合二甲双胍治疗2型糖尿病(T2DM)进行经济学评价。方法 从我国卫生体系角度出发,基于7项GLP-1RA联合二甲双胍治疗T2DM的随机对照试验(RCT),构建二甲双胍单药或联合GLP-1RA治疗T2DM的Markov模... 目的 对胰高血糖素样肽1受体激动剂(GLP-1RA)联合二甲双胍治疗2型糖尿病(T2DM)进行经济学评价。方法 从我国卫生体系角度出发,基于7项GLP-1RA联合二甲双胍治疗T2DM的随机对照试验(RCT),构建二甲双胍单药或联合GLP-1RA治疗T2DM的Markov模型,模拟治疗期间T2DM无并发症、T2DM伴并发症以及死亡3种状态的动态变化。模型以质量调整生命年(QALYs)为健康产出指标、以3倍我国2023年人均国内生产总值(GDP)为意愿支付(WTP)阈值。模型循环周期设定为1年,共计模拟20年,采用Markov模型进行队列模拟,以增量成本-效用比(ICUR)为评价指标,从而获得每种治疗策略的长期成本、效用及其经济性。通过对成本、效用及贴现的敏感性分析,检验研究结果的稳定性。结果 与二甲双胍单药治疗相比,5种GLP-1RA类药物(利拉鲁肽、度拉糖肽、艾塞那肽、聚乙二醇洛塞那肽、司美格鲁肽)联合二甲双胍治疗方案的ICUR均小于3倍我国2023年人均GDP,增加的成本可接受。敏感性分析中各参数在设定的范围内变化,或将模拟时间延长至30年或50年,对研究结论无显著影响;概率敏感性分析结果表明,WTP阈值为3倍我国2023年人均GDP值(268 074元)时,二甲双胍联合司美格鲁肽0.5 mg方案具有成本-效用优势的概率最高,约为99.7%。结论 对于T2DM患者,相比于二甲双胍单药治疗,利拉鲁肽、度拉糖肽、艾塞那肽、聚乙二醇洛塞那肽、司美格鲁肽以说明书推荐剂量联合二甲双胍治疗方案均属于优势方案,具有经济性。 展开更多
关键词 胰高血糖素样肽1受体激动剂 二甲双胍 2型糖尿病 成本-效用 MARKOV模型 药物经济学
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