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肺腺癌病人胸部CT深度学习生存预测模型的组织病理学基础

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国际医学放射学杂志 2023年第1期46卷 107-107页

作者： J.G.Nam S.park C.M.park Y.K.Jeon D.H.Chung J.M.Goo 王天灏

摘要一种基于CT的术前深度学习预测模型,能评估肺腺癌切除后的无病生存率。但是深度学习的黑盒特性阻碍了对其结果的解释。目的提供支持深度学习生存预测模型的

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脱铝对SUZ-4分子筛性质的影响

大连海事大学学报 2007年第4期33卷 118-121页

作者：蒋山阎圣刚李刚月曲敏申志明朴尚彦蔡天锡大连海事大学机电与材料工程学院辽宁大连116026 大连理工大学化工学院辽宁大连116012 仁川大学化学系仁川402751

为了提高SUZ-4分子筛的Si/Al比,以(NH4)2SiF6(AHFS)为脱铝剂对HK-SUZ-4分子筛脱铝进行研究.采用XRD、MAS-NMR、FT-IR、EDS和N2吸附等技术手段对脱铝的SUZ-4进行表征.结果表明,HK-SUZ-4分子筛经(NH4)2SiF6(AHFS)脱铝后Si/Al比升高,而且SUZ-4脱铝程度随着AHFS浓度的升高而增大.脱铝前后的SUZ-4分子筛表面酸中心以B酸为主.随着脱铝程度升高,SUZ-4分子筛表面B酸中心量和总酸量均逐渐减少,甲醇脱水活性降低.

关键词： SUZ-4分子筛脱铝吸附技术六氟硅酸铵酸性

Factors impacting nanoindentation testing results of the cuticle of dung beetle Copris ochus Motschulsky

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Journal of Bionic Engineering 2004年第4期1卷 221-230页

作者： TONG Jin , SUN Ji-yu , CHEN Dong-hui , ZHANG Shu-jun 1 1 1 2 1. Key Laboratory for Terrain-Machine Bionics Engineering (Ministry of Education, China), Jilin University, 5988 Renmin Street, changchun 130022, P. R. China 2. Department of Multi-media and Computing, University of Gloucestershire, Cheltenham, The park, GL50 2QF, UK. 1 Key Laboratory for Terrain-Machine Bionics Engineering(Ministry of Education China) Jilin University 5988 Renmin Street Changchun 130022 P. R. China Department of Multi-media and Computing University of Gloucestershire Cheltenham The Park GL50 2QF UK.

The cuticle of dung beetle is a layered composite material in micro- or nano-scale. Dung beetle can fly, walk and dig. It can shovel and compact dung of mammals into balls. It use foreleg to walk, midleg and hindleg to hold and impel dung ball. Its two foreleges as digging legs are developed. The factors impacting the nanoindentation testing results of the femur cuticle of forelegs of dung beetle Copris ochus Motschulsky were examined. The nanomechanical test instrument used for the tests was Hysitron nanomechanical system. The results shown that the holding time and loading time are important factors im- pacting the accuracy of such indentation properties as reduced modulus (Er) and the harness ( H ) of the femur cuticle of the forelegs of dung beetle Copris ochus Motschulsky in nanoscale. There exists a threshold holding time of 20 s for the reduced modulus of the femur cuticle. The tests of nanoindentation creep property and the regression analysis of relationship between the depth increment at the maximum load and the time further confirmed the correction of the above threshold holding time. There exist visco-elastic-plastic behaviour and creep phenomenon in the femur cuticle during indenting. Its creep property during the holding procedure at maximum load can be regressed by a general logarithmic equation. The equation fitted by the testing data is ? h = 54.83452 ln(0.00723t +1.00486), where, ? h is the depth increment at the maximum load and t is the time.

关键词： insect dung beetle cuticle nanoindentation holding time loading time creep 1

Erratum to “Novel Wavelet-Based Segmentation of Prostate CBCT Images with Implanted Calypso Transponders” [International Journal of Medical Physics, Clinical Engineering and Radiation Oncology 6 (2017) 336-343]

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International Journal of Medical Physics, Clinical Engineering and Radiation Oncology 2017年第4期6卷 376-376页

作者： Yingxia Liu Ziad Saleh Yulin Song Maria chan Xiang Li Chengyu Shi Xin Qian Xiaoli Tang Shandong Communication and Media College Jinan China Medical Physics Department Memorial Sloan Kettering Cancer Center New York NY USA Radiation Oncology North Shore Long Island Jewish Health System New Hyde Park NY USA

The original online version of this article (Liu, Y.X., Saleh, Z., Song, Y.L., chan, M., Li, X., Shi, C.Y., Qian, X. and Tang, X.L (2017) Novel Wavelet-Based Segmentation of Prostate CBCT Images with Implanted Calypso Transponders. International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, 6, 336-343. doi: 10.4236/ijmpcero.2017.63030) was published without acknowledging our support. The authors wish to add the acknowledgments.

关键词： Erratum

上海烟草浦东科创园区北地块项目单层屋面系统设计与施工

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中国建筑防水 2022年第9期 33-36页

作者：张婵宁波李文佳阳继来上海东方雨虹防水工程有限公司上海200333

上海烟草浦东科技创新园区建设项目(北地块)厂房屋面采用了2 mm厚增强型TPO卷材机械固定单层屋面系统。该项目设计与施工过程中,通过科学设置防水卷材固定件间距、确保防水卷材焊缝可靠性、处理好防水层施工与虹吸式雨水斗施工交接部位... 详细信息

上海烟草浦东科技创新园区建设项目(北地块)厂房屋面采用了2 mm厚增强型TPO卷材机械固定单层屋面系统。该项目设计与施工过程中,通过科学设置防水卷材固定件间距、确保防水卷材焊缝可靠性、处理好防水层施工与虹吸式雨水斗施工交接部位工序交接、做好细部节点处理,使屋面系统的质量得到了有效保障。

关键词：工业厂房单层屋面增强型TPO卷材机械固定

沙地樟子松人工林叶片-枯落物-土壤有机碳含量特征

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北京林业大学学报 2018年第7期40卷 36-44页

作者：任悦高广磊丁国栋张英朴起亨郭米山曹红雨北京林业大学水土保持学院水土保持国家林业局重点实验室北京100083 宁夏盐池毛乌素沙地生态系统国家定位观测研究站宁夏盐池751500 韩国国立山林科学院韩国首尔130-712

【目的】有机碳在生态系统物质循环和全球碳循环中扮演着重要的角色,沙地樟子松是我国北方风沙区农田防护林和防风固沙林的重要造林树种之一,通过对不同生物气候带沙地樟子松人工林叶片、枯落物、土壤有机碳含量及相关性的分析,阐明沙... 详细信息

【目的】有机碳在生态系统物质循环和全球碳循环中扮演着重要的角色,沙地樟子松是我国北方风沙区农田防护林和防风固沙林的重要造林树种之一,通过对不同生物气候带沙地樟子松人工林叶片、枯落物、土壤有机碳含量及相关性的分析,阐明沙地樟子松人工林叶片—枯落物—土壤连续体有机碳分布特征。【方法】本研究以呼伦贝尔沙地、科尔沁沙地和毛乌素沙地中龄、近熟和成熟3个龄组沙地樟子松人工林为研究对象。在测定叶片、枯落物和土壤有机碳含量的基础上,采用单因素方差分析和LSD多重比较法分析不同地区和龄组叶片、枯落物和土壤有机碳含量的差异性,采用双因素方差分析气候带和林龄对有机碳含量影响的显著性,并采用Pearson相关系数分析不同生物气候带叶片、枯落物和土壤有机碳含量相关性。【结果】(1)研究区沙地樟子松人工林叶片、枯落物和土壤有机碳含量分别在604.06~675.69 g/kg、343.02~538.51 g/kg和0.72~11.73 g/kg之间;(2)随着林龄的增加,沙地樟子松人工林叶片、枯落物和土壤有机碳含量均呈现先增加后减小的趋势,即近熟林>中龄林>成熟林;(3)气候带和林龄对沙地樟子松人工林叶片有机碳含量影响不显著(P>0.05),对枯落物和土壤有机碳含量影响差异显著(P<0.05),且不同组分有机碳含量呈显著(P<0.05)或极显著(P<0.01)正相关关系。【结论】沙地樟子松人工林叶片—枯落物—土壤连续体中存在有机碳的运输和转换。沙地樟子松能够通过自身结构与功能适应环境变化,其叶片表现出较高的环境适应能力。研究结果有助于进一步揭示沙地樟子松人工林碳循环过程,并为沙地樟子松人工林经营管理提供理论支撑。

关键词：沙地樟子松叶片枯落物土壤有机碳含量

A Theory for Mixed Vortex Rossby- Gravity Waves in Tropical Cyclones

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A Theory for Mixed Vortex Rossby- Gravity Waves in Tropical ...

Determination of Trace Organic Pollutants using Gas Flow Headspace Liquid Phase Microextraction

第七次全国动力气象学术会议

作者： Han-Cheng Lu~1,Wei Zhong~1,and Da-Lin Zhang~2 1 Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101 2 Department of Atmospheric and Oceanic Science,University of Maryland,College park,Maryland 20742

＜正＞Previou;studies have developed theories of vortex-Rossby waves（VRW）and inertial gravity waves（IGWs）to explain the propagation of spiral rainbands and the development of dynamical instability in tropical cyclones（TCs）.In the present work, a theory for azimuthally propagating mixed vortex-Rossby-inertial-gravity waves

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Determination of Trace Organic Pollutants using Gas Flow Hea...

Pharmacophore and molecular docking guided 3D-QSAR study of bacterial enoyl-ACP reductase (FabI) inhibitors

持久性有机污染物论坛2010暨第五届持久性有机污染物全国学术研讨会

作者： Miao He,Cui Yang,Juan Wang,Xiaoping Wang,Donghao Li~* (Key Laboratory of Natural Resources of changbai Mountain & Functional Molecules(Yanbian University),Ministry of Education,park Road 977,Yanji City,Jilin Province,133002.

*** The research for new analytical method of sufficient sensitivity and specificity to monitor the occurrence of organic substances at trace or ultra trace concentrations is not an easy *** were some shortcomings in traditional analytical method for monitoring trace organic pollutants,such as, time-consuming procedures,large amount of samples and organic solvents and difficulty in automation.

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Pharmacophore and molecular docking guided 3D-QSAR study of ...