国家图书馆藏甲骨(已公布部分)著录整理

中国国家图书馆所藏甲骨数量极为丰富,《甲骨文合集》和《甲骨文合集补编》仅收录其中部分藏品的拓片。本文以"中国国家数字图书馆·拓片数据库·甲骨拓片"业已公布的甲骨拓片和彩照为研究对象,进行著录整理。具体包括甲骨残片缀合15组、复原13组,并对742版甲骨做出著录情况的对勘。     

一种油画颜料层裂纹的修复技术分析

油画颜料层裂纹是一种常见的病害类型,严重的裂纹会影响作品的视觉效果。裂纹修复所采取的措施应以缓解病害,延续寿命为目标,避免不当修复对其文物价值的改变。本研究通过红外光谱和便携式X荧光能谱分析,初步确定了裂纹产生的原因与材料技法和机械作用力有关,长期的温湿度波动则是最终形成老化裂纹的重要因素。对两类常见的裂纹加固方法比较后得出结论,色蜡改变了原画的光泽度和肌理层,动物胶调碳酸钙更适宜作为裂纹的填补材料。观察修复后的油画保存状况,发现经过修复的颜料层仍存在继续劣化的风险,必须维持保存环境的相对稳定,方可延长修复周期。     

Multiphase flow simulation through porous media with explicitly resolved fractures

Accurate simulation of multiphase flow in fractured porous media remains a challenge. An important problem is the representation of the discontinuous or near discontinuous behaviour of saturation in real geological formations. In the classical continuum approach, a refined mesh is required at the interface between fracture and porous media to capture the steep gradients in saturation and saturation‐dependent transport properties. This dramatically increases the computational load when large numbers of fractures are present in the numerical model. A discontinuous finite element method is reported here to model flow in fractured porous media. The governing multiphase porous media flow equations are solved in the adaptive mesh computational fluid dynamics code IC‐FERST on unstructured meshes. The method is based on a mixed control volume – discontinuous finite element formulation. This is combined with the P_N+1DG‐P_NDG element pair, which has discontinuous (order N+1) representation for velocity and discontinuous (order N) representation for pressure. A number of test cases are used to evaluate the method's ability to model fracture flow. The first is used to verify the performance of the element pair on structured and unstructured meshes of different resolution. Multiphase flow is then modelled in a range of idealised and simple fracture patterns. Solutions with sharp saturation fronts and computational economy in terms of mesh size are illustrated.     

Biomechanics of coaching maximal instep soccer kick for practitioners

Kicking in soccer has been the subject of scientific research for more than 40 years yet review articles summarizing the biomechanical fundamentals of kick optimization as a guide to coaching are scarcely to be found. The current review article aims to bridge the gap between scientific research into the maximal instep kick (including studies employing 3D motion capture and full-body biomechanical modelling) and the application of such research in coaching. It does so by supplying a scientifically founded, coaching-friendly article explaining identifiable characteristics and motor control sequencing that define this skill. Relevant biomechanical factors are identified in a way that should help coaches better develop training programmes and, at the same time, foster better understanding of the skill among athletes. Such information will contribute to both accelerated skill acquisition and, by concomitant gains in skill efficiency, the development of programmes that minimize risk of injury to athletes during training.     

敦煌遗书近现代鉴藏印章辑述(下)

吴士鉴(1868-1934),近代金石学家、藏书家.字絅斋,号公詧,别署式溪居士.浙江钱塘(今杭州)人.光绪十八年(1892)进士,官翰林院侍读、江西学政、资政院议员、清史馆纂修.     

焦竑的学术特点与史学成就

焦竑字弱侯,号澹园,又号漪园,谥文端、文宪,江宁(今南京)人,是晚明最负盛名的学者之一,尤其精于史学.明代史学风气至嘉、万时期丕变,由空疏转向谨严.其中功绩,王世贞之外,则首推焦竑.在焦竑传世的三十余种著作中,史学著作计有《献征录》120卷、《熙朝名臣实录》27卷、《逊国忠节录》4卷、《国史经籍志》6卷、《玉堂丛语》8卷、《皇明人物考》6卷、《京学志》8卷、《词林历官表》3卷等,此外尚有汇录大量考史笔记的《焦氏笔乘》6卷和《续笔乘》8卷等,是明代整个学术发展中非常有影响的人物①.     

赤水河疏浚与川盐(仁岸)入黔

张广泗上疏朝廷,于乾隆十年十一月至十一年闰三月,首浚赤水河,疏通68处险滩,使川盐由四川合江经赤水河到仁岸茅台村,运输路程大大缩短,盐价渐平,对黔人"斗米斤盐"之负担有所减轻,经济效益十分明显.文中还对赤水河源流及遵义知府陈玉(殿)是否参与赤水河疏浚、吴登举之死等问题,均有论述与考辨.     

吉金铸铭寻地望 亚醜方国忆辉煌-青州苏埠屯商墓出土青铜器赏析简

青州,始于《尚书·禹贡》,其中载“海岱惟青州”。这时的青州是一个地理概念,指的是东至大海西至泰山的广大地区。现在的青州,仅是山东省的一个县级市,行政范围缩小到禹贡时青州的中心地带。从现在考古调查及发掘来看,青州有近万年的历史,面山负海,资源丰富,物阜民丰,地理位置优越,大汶口、龙山时期文化遗址众多,     

Craftsman Danda in Tsona Alley简

<正>In the Barkor Street,there are still many traditional Tibetan craftsmen.They have consummate skills.Danda,a native,is the boss of such a craft shop.He deals ...     

地方志与城市化推进中的文化记忆抢救工程

在今后相当长的一个时期,地方志工作需要致力于“文化记忆抢救工程”这样一个领域,这个工作是各地建设文化大省的重要内容。在我国城市化高潮来临的情况下,建设与保护是一对共生的矛盾,“文化记忆抢救工程”的急迫性在某种程度上就是要与社会经济发展抢速度。