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在Eclipse3.3中安装VE插件
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作者 华卫 《泸州职业技术学院学报》 2007年第4期43-46,共4页
本文讲述在Eclipse3.3中安装VE插件实现可视化编程的步骤,对于想在Eclipse平台上进行可视化编程的Java开发者具有一定的参考意义。
关键词 ECLIPSE VE EMF GEF
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《知微历》交食算法分析
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作者 滕艳辉 《咸阳师范学院学报》 2024年第4期66-72,共7页
分析《知微历》日月交食计算的整体思路;利用文献分析的方法对《知微历》日食和月食的食甚时刻算法、食差算法、食限算法和食分算法的推步思路进行全面梳理,给出《知微历》完整的交食推算过程;对比宋代《崇天历》和《纪元历》的交食算法... 分析《知微历》日月交食计算的整体思路;利用文献分析的方法对《知微历》日食和月食的食甚时刻算法、食差算法、食限算法和食分算法的推步思路进行全面梳理,给出《知微历》完整的交食推算过程;对比宋代《崇天历》和《纪元历》的交食算法,指出《知微历》应该是综合上述两部历法并增损而成。 展开更多
关键词 《知微历》 日食 月食 食甚:食分
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H3.3G34W、p63及SATB2免疫组织化学染色联合应用对骨巨细胞瘤的诊断价值
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作者 张楠 吕茉琦 +5 位作者 同志超 李海燕 王丹 杨文义 李晓菊 周党侠 《西安交通大学学报(医学版)》 CAS CSCD 北大核心 2024年第3期461-469,共9页
目的探讨H3.3G34W、p63及SATB2在骨巨细胞瘤(giant cell tumor of bone,GCTB)中的表达情况及其联合应用对GCTB的诊断作用和价值。方法收集西安交通大学附属红会医院病理科2020年至2022年诊断的54例GCTB、83例非骨巨细胞瘤(non-giant cel... 目的探讨H3.3G34W、p63及SATB2在骨巨细胞瘤(giant cell tumor of bone,GCTB)中的表达情况及其联合应用对GCTB的诊断作用和价值。方法收集西安交通大学附属红会医院病理科2020年至2022年诊断的54例GCTB、83例非骨巨细胞瘤(non-giant cell tumor of bone,NGCTB)(包含14例动脉瘤样骨囊肿、16例软骨母细胞瘤和53例非骨化性纤维瘤)患者的样本和病历资料,采用免疫组织化学EliVision法检测H3.3G34W、p63及SATB2的表达情况。通过χ^(2)检验判断H3.3G34W、p63及SATB2的阳性率在各组间是否存在统计学差异;通过Logistic回归分析建立包括H3.3G34W、p63及SATB2的联合诊断模型,通过受试者工作特征(ROC)曲线分析评价模型的诊断价值。结果H3.3G34W、p63及SATB2在GCTB组中阳性率分别为81.5%、90.7%、92.6%;在NGCTB组中阳性率分别为2.4%、28.9%、62.7%。与NGCTB组相比,GCTB组患者年龄显著较大[(41.222±14.849)vs.(16.566±9.439);P<0.001],女性比男性患病率更高(51.9%vs.48.1%,P<0.001)。与NGCTB组相比,GCTB组中H3.3G34W(81.5%vs.2.4%,P<0.001);p63(90.7%vs.28.9%,P<0.001)和SATB2(92.6%vs.62.7%,P<0.001)的阳性率更高。单因素Logistic回归分析构建单因素预测模型,同时行ROC曲线分析,表明年龄(AUC=92.9%,P<0.001)、性别(AUC=64.5%,P=0.004)、H3.3G34W阳性率(AUC=89.5%,P<0.001)、p63阳性率(AUC=80.9%,P<0.001)、SATB2阳性率(AUC=65.0%,P=0.003)是GCTB诊断的独立预测因素。进一步的多因素Logistic回归分析构建混合预测模型,并行ROC曲线分析,发现混合模型展现出比单因素模型更好的预测价值(AUC=98.4%,P<0.001)。结论H3.3G34W、p63及SATB2是有效诊断GCTB的分子标记物,且三者联合应用更能提高GCTB的诊断预测效能。 展开更多
关键词 骨巨细胞瘤(GCTB) 免疫组织化学 诊断 H3.3G34W P63 SATB2
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Halcyon加速器在乳腺癌保乳术后放射治疗中的临床应用
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作者 尹楚欧 邓娟 +1 位作者 梅国建 刘江 《生物医学工程与临床》 CAS 2024年第5期641-646,共6页
目的探究在Halcyon直线加速器上使用调强适形放射治疗(IMRT)和容积旋转调强放射治疗(VMAT)进行乳腺癌保乳术后放射治疗的临床应用。方法选择乳腺癌保乳术后放射治疗患者25例,年龄36~61岁,平均年龄50.9岁;左侧乳腺癌15例,右侧乳腺癌10例... 目的探究在Halcyon直线加速器上使用调强适形放射治疗(IMRT)和容积旋转调强放射治疗(VMAT)进行乳腺癌保乳术后放射治疗的临床应用。方法选择乳腺癌保乳术后放射治疗患者25例,年龄36~61岁,平均年龄50.9岁;左侧乳腺癌15例,右侧乳腺癌10例;肿瘤分期均为T1~T2、N0、M0。计划设计均在Eclipse计划系统上,每例患者分别采用IMRT和VMAT进行计划设计。对两类计划的主要剂量学参数、剂量分布、γ通过率和照射时间进行比较。结果所有计划均可临床使用,两组计划靶区D_(95%)、平均剂量D_(mean)差异较小(P>0.05),靶区均匀性指数(HI)(IMRT组0.06±0.01 vs VMAT组0.06±0.01),差异无统计学意义(P>0.05),适形性指数(CI)(IMRT组0.85±0.03 vs VMAT组0.92±0.02),差异有统计学意义(P<0.05)。IMRT组患侧肺V_(5)、V_(20)和平均剂量,心脏平均剂量,健侧肺V_(5)均低于VMAT组,差异具有统计学意义[患侧肺V_(5)(41.36±2.04)%vs(47.58±2.42)%、患侧肺V_(20)(15.04±2.90)%vs(16.35±1.97)%、患侧肺平均剂量(886.32±79.41)cGy vs(993.49±50.14)cGy、心脏平均剂量(209.23±98.12)cGy vs(277.60±83.18)cGy、健侧肺V_(5)(2.10±1.35)%vs(14.06±8.62)%。P<0.05]。VMAT组γ通过率优于IMRT组,差异有统计学意义[3 mm/3%(99.72±0.20)%vs(99.38±0.37)%;2 mm/2%(97.22±1.05)%vs(96.99±0.91)%。P<0.05]。IMRT组照射时间(2.08±0.27)min,VMAT组照射时间(0.87±0.04)min,VMAT组节省超过55%照射时间,差异有统计学意义(P<0.05)。结论使用Halcyon直线加速器进行保乳术后放射治疗,IMRT计划和VMAT计划均能满足临床治疗需求,采用VMAT技术会提高靶区的剂量分布,明显提高计划执行效率。 展开更多
关键词 ECLIPSE Halcyon 保乳术后放射治疗 调强放射治疗 剂量分布 照射时间
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骨巨细胞瘤H3.3G34W蛋白表达与H3F3A基因突变对比研究
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作者 赵雪琰 李盼 +2 位作者 李振乾 王蓓蓓 赵志华 《肿瘤基础与临床》 2024年第3期252-255,共4页
目的比较H3.3G34W蛋白和H3F3A基因突变在骨巨细胞瘤中的表达和H3.3G34W在其他富含破骨样巨细胞肿瘤中的表达,为H3.3G34W作为骨巨细胞瘤诊断和鉴别诊断工具提供理论依据。方法选取2021年7月至2024年3月在郑州大学第一附属医院诊治的骨巨... 目的比较H3.3G34W蛋白和H3F3A基因突变在骨巨细胞瘤中的表达和H3.3G34W在其他富含破骨样巨细胞肿瘤中的表达,为H3.3G34W作为骨巨细胞瘤诊断和鉴别诊断工具提供理论依据。方法选取2021年7月至2024年3月在郑州大学第一附属医院诊治的骨巨细胞瘤患者72例、其他富含破骨样巨细胞肿瘤148例,采用免疫组化评估骨巨细胞瘤和非骨巨细胞瘤肿瘤中H3.3G34W的表达,Sanger DNA测序分析检测骨巨细胞瘤中H3F3A突变类型,分析并比较H3.3G34W表达和H3F3A基因突变对骨巨细胞瘤的诊断价值。结果72例骨巨细胞瘤中H3.3G34W阳性率88.89%(64/72),72例骨巨细胞瘤基因测序均检测出突变,8例H3.3G34W阴性患者中,1例H3F3A检出G34W突变,7例检出少见类型突变(包括G34V、G34L和G34R)。148例非骨巨细胞瘤肿瘤中H3.3G34W均为阴性。结论骨巨细胞瘤中H3F3A基因突变最常见的位点是G34W,与H3.3G34W蛋白免疫组化染色表达一致。DNA测序分析能检测到H3F3A的罕见突变类型。免疫组化染色检测H3.3G34W蛋白的表达在诊断骨巨细胞瘤与其他富含破骨样巨细胞的肿瘤鉴别诊断中有重要作用,敏感性和特异性均较高。 展开更多
关键词 骨巨细胞瘤 H3F3A H3.3G34W 鉴别诊断
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考虑太阳光压的小天体附近自然绕飞轨道研究
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作者 郎安琪 秦子浩 谭立国 《中国空间科学技术(中英文)》 CSCD 北大核心 2024年第5期95-106,共12页
在小天体附近是否存在探测器的长寿命自然绕飞轨道是近小天体段轨道设计中的重要问题。针对不规则小天体附近复杂动力学环境,综合考虑不规则引力摄动J_(2)、J_(3)、J_(4)项,太阳光压摄动和可能存在的星蚀情况,基于平均动力学和冻结轨道... 在小天体附近是否存在探测器的长寿命自然绕飞轨道是近小天体段轨道设计中的重要问题。针对不规则小天体附近复杂动力学环境,综合考虑不规则引力摄动J_(2)、J_(3)、J_(4)项,太阳光压摄动和可能存在的星蚀情况,基于平均动力学和冻结轨道求解方法发展了一种能够快速确定小行星附近长寿命自然绕飞轨道的类型和存在区域(轨道根数存在范围)的半解析方法。分析了考虑光压摄动、星蚀以及小行星-探测器系统参数变化对这些轨道存在区域的影响。搜索了潜在威胁小行星99942 Apophis附近可能存在的自然绕飞轨道,发现了两类长寿命轨道族:存在域小且对参数不确定性更敏感的向日轨道族和半长轴跨度范围较大且稳定性更好的晨昏线轨道族。研究结果表明太阳光压对不规则小天体附近长寿命绕飞轨道的存在情况影响显著。考虑光压摄动后,长寿命轨道存在域显著减小。随着光压摄动的增强,向日轨道偏心率增大,而晨昏线轨道偏心率减小,两类轨道的半长轴覆盖范围均减小。 展开更多
关键词 小行星 不规则引力摄动 太阳光压摄动 阴影效应 冻结轨道
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基于Java Web的班级信息管理系统的设计与实现
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作者 吴敏 《中国新通信》 2024年第7期74-76,共3页
为了提高班级信息管理水平,实现规范管理、快速查询、科学统计班级相关信息,并满足辅导员、班主任等管理人员管理班级的需要,本文介绍了一种基于Java Web的班级信息管理系统。该系统采用Eclipse进行Java Web开发,以MySQL数据库作为后台... 为了提高班级信息管理水平,实现规范管理、快速查询、科学统计班级相关信息,并满足辅导员、班主任等管理人员管理班级的需要,本文介绍了一种基于Java Web的班级信息管理系统。该系统采用Eclipse进行Java Web开发,以MySQL数据库作为后台数据存储平台,用Java语言进行编程,并使用Tomcat服务器来构建应用程序的运行环境。该系统可以实现班级信息的增删改查、成绩的录入、查询和统计、课程的添加、删除、修改和查询等功能。 展开更多
关键词 班级信息管理系统 Java Web ECLIPSE MYSQL
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高校数字化宿舍管理系统设计与实现
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作者 陈柳羽 宁雪梅 许舟洋 《电脑编程技巧与维护》 2024年第10期113-116,共4页
随着信息技术的迅猛进步,学生宿舍管理正逐步实现信息化,目的是提升管理效率并确保信息安全。项目基于Eclipse平台,利用Java和JSP技术设计了高校数字化宿舍管理系统。该系统采用MySQL数据库和MVC设计模式,运用Struts2框架实现控制层和... 随着信息技术的迅猛进步,学生宿舍管理正逐步实现信息化,目的是提升管理效率并确保信息安全。项目基于Eclipse平台,利用Java和JSP技术设计了高校数字化宿舍管理系统。该系统采用MySQL数据库和MVC设计模式,运用Struts2框架实现控制层和视图层的分离,从而有效促进了宿舍管理的自动化和规范化水平。该系统为高校宿舍管理提供了一个高效且安全的解决方案,推动了高校宿舍管理的自动化、程序化和规范化,以适应校园数字化和网络化的发展趋势。 展开更多
关键词 宿舍管理系统 数字化 ECLIPSE平台 MYSQL数据库
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日食所致“天再旦”现象再研究
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作者 王圣豪 《天文学报》 CAS CSCD 北大核心 2024年第5期131-140,共10页
古书《竹书纪年》记载周懿王元年“天再旦于郑”,这被现代学者认为可能是发生在日出之际的日食,夏商周断代工程选择前899年4月21日的日环食为天再旦的对应日食.更一般的分析发现只有食分在0.95以上的日食才能产生“天再旦”现象,对食甚... 古书《竹书纪年》记载周懿王元年“天再旦于郑”,这被现代学者认为可能是发生在日出之际的日食,夏商周断代工程选择前899年4月21日的日环食为天再旦的对应日食.更一般的分析发现只有食分在0.95以上的日食才能产生“天再旦”现象,对食甚时的太阳高度也有限制.在确定“郑”位于陕西凤翔县的前提下,前899年日食和断代工程实测的1997年日食的日光变化情况可以通过天文软件模拟,这确认了“天再旦”现象的普遍存在,从中也可得出“天再旦”现象发生时的具体过程并还原部分细节. 展开更多
关键词 日食 天体力学 天文学史 方法:观测
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Ca_v3.3-mediated endochondral ossification in a three-dimensional bioprinted Gel MA hydrogel
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作者 Zhi Wang Xin Wang +6 位作者 Yang Huang Junjun Yang Zu Wan Zhenlan Fu Xiaoyuan Gong Guangxing Chen Liu Yang 《Bio-Design and Manufacturing》 SCIE EI CAS CSCD 2024年第6期983-999,共17页
The growth plate(GP)is a crucial tissue involved in skeleton development via endochondral ossification(EO).The bone organoid is a potential research model capable of simulating the physiological function,spatial struc... The growth plate(GP)is a crucial tissue involved in skeleton development via endochondral ossification(EO).The bone organoid is a potential research model capable of simulating the physiological function,spatial structure,and intercellular communication of native GPs.However,mimicking the EO process remains a key challenge for bone organoid research.To simulate this orderly mineralization process,we designed an in vitro sh Ca_(v)3.3 ATDC5-loaded gelatin methacryloyl(Gel MA)hydrogel model and evaluated its bioprintability for future organoid construction.In this paper,we report the first demonstration that the T-type voltage-dependent calcium channel(T-VDCC)subtype Ca_(v)3.3 is dominantly expressed in chondrocytes and is negatively correlated with the hypertrophic differentiation of chondrocytes during the EO process.Furthermore,Ca_(v)3.3 knockdown chondrocytes loaded with the Gel MA hydrogel successfully captured the EO process and provide a bioink capable of constructing layered and orderly mineralized GP organoids in the future.The results of this study could therefore provide a potential target for regulating the EO process and a novel strategy for simulating it in bone organoids. 展开更多
关键词 Bone organoid Endochondral ossification T-type voltage-dependent calcium channel(T-VDCC) Ca_(v)3.3 3D bioprinting
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BSN:The First Light Curve Analysis of the Total Eclipse Binary System EL Tuc
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作者 Elham Sarvari Eduardo Fernández Lajús Atila Poro 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2024年第10期66-75,共10页
We conducted the first light curve study of the binary star EL Tuc within the Binary Systems of South and North project's framework.The photometric observations were made using standard multiband BVR_cI_c filters ... We conducted the first light curve study of the binary star EL Tuc within the Binary Systems of South and North project's framework.The photometric observations were made using standard multiband BVR_cI_c filters at an observatory in Argentina.We presented a new ephemeris for EL Tuc and a linear fit to the O–C diagram,utilizing our extracted times of minima and additional literature.We employed the PHysics Of Eclipsing BinariEs Python code and the Markov chain Monte Carlo approach for the system's light curve analysis.The target system's light curve solution required a cold starspot on the hotter component.We conclude that EL Tuc is a total contact binary system with a low mass ratio of q=0.172±0.002,an orbital inclination of i=83°.74±0°.40,and a fillout factor of f=53.7%±1.6%.We used the P-a relationship and the Gaia Data Release 3 parallax method to determine the absolute parameters of EL Tuc to compare the precision of our results.This system was classified as W-type based on the mass and effective temperature of the companion stars.The positions of the systems were depicted on the M-L,M-R,T-M,and q-Lratiodiagrams.The relationship between the spectroscopic and photometric mass ratios of binaries was discussed. 展开更多
关键词 (stars:)binaries:eclipsing stars:individual(EL Tuc) line:identification
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Astral Actions on Allais’ Pendulum Apparently Inexplicable by Classical Factors: A Point of the Situation
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作者 Jean-Bernard Deloly 《Journal of Modern Physics》 2024年第9期1375-1408,共34页
1) The observation by Allais of the precession of pendulums from 1954 to 1960 highlighted regularities of astral origin an in-depth analysis of which showed that, apparently, no classical phenomenon can explain them. ... 1) The observation by Allais of the precession of pendulums from 1954 to 1960 highlighted regularities of astral origin an in-depth analysis of which showed that, apparently, no classical phenomenon can explain them. These regularities were diurnal waves whose periods are characteristic of astral influence (the main ones being 24 h and 24 h 50 min), annual and semi-annual components, and a multi-annual component of approximately 6 years, an influence of Jupiter being a very good candidate to explain it. 2) Allais had experimentally established that all these astral influences were expressed globally on the pendulum by an action tending to call back its plane of oscillation towards a direction variable in time, and which ovalized its trajectory. In 2019 the observation of 2 pendulums in Horodnic (Romania), thanks to the use of an automatic alidade, made it possible to identify the main mechanism that, very probably, acted on the pendulum to achieve this result. This perturbation model, called “linear anisotropy”, is characterized by its “coefficient of anisotropy” η, and by the azimuth of its “direction of anisotropy”. The composition of 2 linear anisotropies is always a linear anisotropy. 3) In the search for the phenomena which could be at the origin of all what precedes, the fact that they must create an ovalization immediately eliminates some of them. 4) We have calculated the values of η corresponding to the 24 h and 24 h 50 min waves both for the observations in Horodnic and the Allais observations. The order of magnitude (some 10−7) is effectively the same in both cases. 5) Mathematically, the regularities discovered may result of a new force field but also, as Allais proposes, from the creation, under the astral influences, of a local anisotropy of the medium in which the pendulum oscillates. In the first case the length of the pendulum is involved, in the second one not. The data available do not make it possible to decide. 6) The joint exploitation, in mechanics and optics, of Allais observations and of observations by other experimenters provides additional information: a) Allais, and after him several other scientists, discovered also marked anomalies in the precession of pendulums during certain eclipses, and maybe certain other syzygies. For the few eclipses for which both something was observed and sufficient data were available (one of them being a lunar eclipse for which nothing had been published until now), it was always the above perturbation model which acted on the pendulum, but sometimes with quite exceptional magnitude. b) There are quite possible links with optics. During the observation campaign of August 1958, which had implemented both two pendulums and an optical device, all the 24 h 50 min waves were almost in phase. In the precession of the Allais pendulum, in Miller’s interferometric observations in Mont Wilson, and in Esclangon’s observations in Strasbourg, a same peculiarity is found: the extrema of the annual influence are at the equinoxes, not at the solstices. 展开更多
关键词 Allais Effect PENDULUM Lunisolar Influence Jupiter Influence Lunar and Solar Eclipses SYZYGIES SUNSPOTS Solar Cycles
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BSN:Photometric Light Curve Analysis of Two Contact Binary Systems LS Del and V997 Cyg
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作者 Atila Poro Mehmet Tanriver +9 位作者 Elham Sarvari Shayan Zavvarei Hossein Azarara Laurent Corp Sabrina Baudart Asma Ababafi Nazanin Kahali Poor Fariba Zare Ahmet Bulut Ahmet Keskin 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2024年第4期192-213,共22页
The light curve analyses and orbital period variations for two contact binary stars,LS Del and V997 Cyg,are presented in this work which was conducted in the frame of the Binary Systems of South and North project Grou... The light curve analyses and orbital period variations for two contact binary stars,LS Del and V997 Cyg,are presented in this work which was conducted in the frame of the Binary Systems of South and North project Ground-based photometric observations were performed at two observatories in France.We used the Transiting Exoplanet Survey Satellite(TESS)data for extracting times of minima and light curve analysis of the targe systems.The O-C diagram for both systems displays a parabolic trend.LS Del and V997 Cyg’s orbital periods are increasing at rates of dP/dt=7.20×10^(-08)days yr^(-1)and dP/dt=2.54×10^(-08)days yr^(-1),respectively Therefore,it can be concluded that mass is being transferred from the less massive star to the more massive component with a rate of dM/dt=-1.96×10^(-7)M_(⊙)yr^(-1)for the LS Del system,and dM/dt=-3.83×10^(-7)M_(⊙)yr-1for V997 Cyg.The parameters of a third possible object in the system are also considered.The PHysics Of Eclipsing BinariEs Python code was used to analyze the light curves.The light curve solutions needed a cold starspot due to the asymmetry in the LS Del system’s light curve maxima.The mass ratio fill-out factor,and star temperature all indicate that both systems are contact binary types in this investigation.Two methods were applied to estimate the absolute parameters of the systems:one method relied on the parallax of Gaia DR3,and the other used a P-M relationship.The positions of the systems are also depicted on the M-L,M-R q-L_(ratio),and logM_(tot)-logJ_(0)diagrams.We recommend that further observations and investigations be done on the existence of a fourth body in this system. 展开更多
关键词 (stars:)binaries:eclipsing methods:observational stars:individual(LS Del and V997 Cyg)
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唐《景俊石函》考
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作者 杨兵 高歌 《考古与文物》 CSSCI 北大核心 2024年第8期117-121,共5页
本文通过对唐《景俊石函》基本信息的辨识,探讨了石函供奉舍利子的缘由,明确了此次供奉是由天宝五载五月的日蚀天象而引发,以达到祛灾避难、增强皇权、保家护国的目的。
关键词 唐《景俊石函》 唐玄宗 舍利子 日蚀
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V0405 Dra:A New Deep and Low Mass Ratio Contact Binary with Extremely Fast Decrease in the Orbital Period
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作者 Chao-Yue Li Lin-Qiao Jiang +5 位作者 Jie Zheng Yi-Man Liu Xiao-Yu Long Min Sun Han-Lu Zhang Xiao-Man Tian 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2024年第6期287-293,共7页
V0405 Dra is a W UMa-type binary star.Based on the TESS data,we have conducted an orbital period study and performed a light curve analysis for the system.The orbital period study reveals that the O-C curve for V0405 ... V0405 Dra is a W UMa-type binary star.Based on the TESS data,we have conducted an orbital period study and performed a light curve analysis for the system.The orbital period study reveals that the O-C curve for V0405 Dra exhibits secular decrease at an extremely high rate of d P/dt=-2.71×10^(-6)day year^(-1),along with periodic variations characterized by an amplitude of A_(3)=0.0032 day and a period of P_(3)=1.413 years.The orbital periodic change is possibly due to the light-travel time effect resulting from an additional third body in the system,for which we estimate a minimum mass of M_(3)=0.77M_(⊙).By employing the 2013 version of the Wilson-Devinney(W-D)method to synthesize a light curve,we derived photometric solutions indicating that V0405 Dra is a new deep(f=68.7%)and low-mass ratio(q=0.175)contact binary.The fast decrease in its orbital period is likely caused by mass transfer from the more massive primary star to the less massive secondary star,or due to angular momentum loss.With further mass transfer and loss of angular momentum,the binary will gradually evolve into a tighter contact configuration,eventually leading to a merger into a single star,following the evolutionary paths suggested for such deep and low mass ratio contact binaries. 展开更多
关键词 (stars:)binaries(including multiple):close (stars:)binaries:eclipsing stars:individual(V0405 Dra)
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Periodic Variation Studies of the Two Short Period W UMa-type Eclipsing Binaries: LX Lyn and V0853 Aur
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作者 Xu Zhang Bin Zhang 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2024年第1期273-284,共12页
In this paper,new light curves(LCs) of contact eclipsing binary(CEB) systems LX Lyn and V0853 Aur are presented and analyzed by using the 2015 version of the Wilson-Devinney(W-D) code.In order to explain their asymmet... In this paper,new light curves(LCs) of contact eclipsing binary(CEB) systems LX Lyn and V0853 Aur are presented and analyzed by using the 2015 version of the Wilson-Devinney(W-D) code.In order to explain their asymmetric LCs,cool starspots on the components were employed.It is suggested that their fill-out degrees are f=12.0%(LX Lyn) and f=26.3%(V0853 Aur).At the same time,we found that LX Lyn is a W-type eclipsing binary(EB) with an orbital inclination of i=84°.88 and a mass ratio of q=2.31.V0853 Aur is also a W-type CEB with a mass ratio of q=2.77 and an orbital inclination of i= 79°.26.Based on all available times of light minimum,their orbital period changes are studied by using the O-C method.The O-C diagram of LX Lyn reveals a cyclic oscillation with a period of about 14.84 yr and an amplitude of 0.0019 days,which can be explained by the light-travel time effect(LTTE) due to the presence of a third body with a minimum mass of0.06M_⊙.For V0853 Aur,it is discovered that the O-C diagram of the system also shows a cyclic oscillation with a period of 9.64 yr and an amplitude of 0.03365 days.The cyclic oscillation of V0853 Aur can be attributed to the LTTE by means of a third body with a mass no less than 3.77M_⊙.The third body may play an important role in the formation and evolution of these systems. 展开更多
关键词 stars:activity (stars:)binaries(including multiple):close (stars:)binaries:eclipsing (stars:)brown dwarfs stars:evolution stars:formation
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《崇祯历书》与《晓庵新法》月食算法误差的比较与分析
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作者 纪辰 《广西民族大学学报(自然科学版)》 CAS 2024年第1期20-29,共10页
在明末基于欧洲天文学编纂的《崇祯历书》中,交食算法是后来清初学者研习西法时的重要内容。文章以《崇祯历书》和清初代表性学者王锡阐基于西法所著的《晓庵新法》中的月食算法为研究对象,基于二者算法编写计算机程序,计算了崇祯改历... 在明末基于欧洲天文学编纂的《崇祯历书》中,交食算法是后来清初学者研习西法时的重要内容。文章以《崇祯历书》和清初代表性学者王锡阐基于西法所著的《晓庵新法》中的月食算法为研究对象,基于二者算法编写计算机程序,计算了崇祯改历后百年内的月食,并与现代理论值进行比较。结果表明,《晓庵新法》月食食分和食甚的误差均超过了《崇祯历书》,没有达到王锡阐基于西法“去其疵类”的目的,但二者精度均优于《大统历》和《回回历法》。之后,考察了二者月食算法误差的构成和来源,对《晓庵新法》算法误差大于《崇祯历书》的原因进行了分析,并由此发现了《晓庵新法》真正的里差之元经度可能是北京,而非该书所声称的南京。 展开更多
关键词 《崇祯历书》 《晓庵新法》 月食 算法 误差 明末清初
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Eclipse基金会发布《2023物联网&边缘计算开发者调查报告》
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《自动化博览》 2024年第2期5-5,共1页
日前,Eclipse基金会对全球千余名开发者、提交者和架构师等进行调查,发布了《2023物联网&边缘计算开发者调查报告》,该报告由Eclipse Io T、Eclipse Sparkplug工作组负责,提供了有关物联网和边缘计算行业格局、开发者面临挑战及物... 日前,Eclipse基金会对全球千余名开发者、提交者和架构师等进行调查,发布了《2023物联网&边缘计算开发者调查报告》,该报告由Eclipse Io T、Eclipse Sparkplug工作组负责,提供了有关物联网和边缘计算行业格局、开发者面临挑战及物联网和边缘开源生态系统中企业利益相关者对于机遇的见解,并为物联网开发人员提供了详细建议。 展开更多
关键词 物联网 边缘计算 架构师 行业格局 ECLIPSE 开发者 生态系统 面临挑战
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反转办公 杜塞尔多夫Eclipse办公园区
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作者 H.G.Esch(摄影) 《室内设计与装修》 2024年第1期74-79,共6页
Eclipse是开发商die新建设的一个垂直办公园区,位于德国杜塞尔多夫的肯尼迪大道,是审计和咨询公司普华永道(德国)的新办公地点。这座高度可持续运营的园区由UNStudio和德国HPP建筑事务所协作设计,并由HPP建筑事务所实施建造。园区的设... Eclipse是开发商die新建设的一个垂直办公园区,位于德国杜塞尔多夫的肯尼迪大道,是审计和咨询公司普华永道(德国)的新办公地点。这座高度可持续运营的园区由UNStudio和德国HPP建筑事务所协作设计,并由HPP建筑事务所实施建造。园区的设计方案旨在为员工提供一个鼓舞人心和富有吸引力的工作环境,从而促进互动,激发创造力。 展开更多
关键词 建筑事务所 办公园区 协作设计 可持续运营 设计方案 HPP ECLIPSE
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可持续办公建筑:Eclipse普华永道会计师事务所新办公大楼
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作者 《当代建筑》 2024年第10期98-107,共10页
德国杜塞尔多夫市的垂直办公楼“Eclipse”于2022年完工,目前为德国普华永道会计师事务所办公楼。这座可持续的建筑由die developer开发,HPP建筑事务所和UNStudio建筑事务所共同设计,并由HPP建筑事务所负责实施。在肯尼迪大街上,办公大... 德国杜塞尔多夫市的垂直办公楼“Eclipse”于2022年完工,目前为德国普华永道会计师事务所办公楼。这座可持续的建筑由die developer开发,HPP建筑事务所和UNStudio建筑事务所共同设计,并由HPP建筑事务所负责实施。在肯尼迪大街上,办公大楼以其引人注目的玻璃幕墙直插云霄。HPP建筑事务所高级合伙人Werner Sübai先生表示:“Eclipse办公大楼充当了一个媒介,创造出一处连接当地社区与工作场所的城市链。” 展开更多
关键词 建筑事务所 办公建筑 当地社区 高级合伙人 ECLIPSE 玻璃幕墙 办公大楼 城市链
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