Wasserstoff als Energieträger. Herstellung,Lagerung, Transport

Abstract

This essay, written to accompany a lecture to new students on the course of Economic Analytics, at the Institute of Econometrics of the University of Lodz in Poland, provides a broad historical account of the development of econometrics. The context enables students to locate various aspects of econometric analysis. The origin of regression analysis is described and an account of cointegration analysis is presented. This essay is concerned primarily with the propagation of the ideas as distinct from the manner and the circumstances in which they have originated.     

Elemental analysis of pottery in the study of its provenance: A review

Elemental analysis of pottery is a valuable scientific approach to investigation of its provenance. Increasing use is being made of the approach, and this paper presents a critical review of the basic methodology and experimental procedures. Genenal problems and limitations of the technique are discussed, and the procedures involved in each of the four main stages of such studies are described. These stages are: (1) selecting specimens of pottery for analysis, (2) obtaining samples from the specimens, (3) analysing the samples, and (4) interpreting the results. For each stage, suggestions are made for generally useful procedures and experimental precautions, and for aspects on which further study seems desirable. Much of the discussion is also relevant to the analysis and typing of artifacts of other materials, e.g., metal and stone objects.     

Rediscovering regional science: Positioning the field's evolving location in science and society

This study aims to provide a comprehensive examination of the evolution of regional science, a scholarly domain in the social sciences that applies analytical and quantitative approaches and methods to understand and address urban, rural, or regional problems. We conducted a bibliometric analysis of 8509 articles published in six regional science flagship journals (including the Journal of Regional Science, Annals of Regional Science, Regional Science and Urban Economics, Papers in Regional Science, Regional Science Policy and Practice, and International Regional Science Review) from 1958 to 2021. The analysis presents an objective data-driven and unprecedented visualization of the field's intellectual, social, and conceptual structure and trends from the beginning to the present. It also provides a rich portrayal of the epistemology of regional science and illuminates matters related to regional science education and training. We find that regional science has moved well beyond its origins, shifting away from a heavy focus on theory and abstraction to modeling/simulation, empirical analysis, and policy research. We also find that there has been increasing attention to “people” in regions and the spatial characteristics of social problems, and some important shifts in the regional science community itself, particularly in terms of patterns of collaboration and the geography of scholarship. The findings of this paper provide implications for future directions of research and education for regional science.     

中国大陆的马来西亚华侨华人研究——以1982~2011年间《华侨华人历史研究》刊发论文为基础的分析

论文基于《华侨华人历史研究》1982年以来刊发的约60篇马华研究论文,同时参考近年来大陆有关马华研究的博士论文,分析了大陆关于马华研究的主要领域、资料来源、资料类型、研究方法、作者群特点等。研究显示,大陆关于马华的研究,涉及到政治、政策、宗教、文化、社会、文学、女性、族群关系、医学和音乐等领域;研究者重点使用的是英语资料和马来西亚当地的资料,使用最多的是中英文图书,其次是中文期刊和中文报纸;文献分析法是主要研究方法。大陆已有一批比较固定的马华研究者,但人数相对有限,且少有人进行专一的马来西亚华人研究。选择马华作为博士学位论文研究课题的作者成为当今学界研究马华的主要力量。     

On evolutionary economic geography: a literature review using bibliometric analysis

During the past few decades, there has been growing attention paid towards evolutionary economic geography (EEG) perspectives, methodologies, and concepts in various disciplines such as geography, urban studies, and regional science. In order to better understand the development of EEG studies, this paper employs multiple bibliometric analyses. Specifically, it examines the temporal evolution of keyword co-occurrence network and the reference co-citation network of EEG publications during the last few decades to reveal the temporal evolution and spatial distribution of EEG publications, scholarly communication, research fronts, and intellectual structure of the scientific field.     

统计分析在商代陶鬲研究中的应用

统计分析的方法应用于考古学是以定量化的研究代替定性分析的过程。本文将因子分析的方法应用于郑州洛阳地区出土陶器器形的研究中,以描述陶鬲形制的变化,并检验此变化和商文化演进间的关系。     

Simulation of Shake Table Tests on Out-of-Plane Masonry Buildings. Part (I): Displacement-based Approach Using Simple Failure Mechanisms

ABSTRACT

A displacement-based (DB) assessment procedure was used to predict the results of shake table testing of two unreinforced masonry buildings, one made of clay bricks and the other of stone masonry. The simple buildings were subject to an acceleration history, with the maximum acceleration incrementally increased until a collapse mechanism formed. Using the test data, the accuracy and limitations of a displacement-based procedure to predict the maximum building displacements are studied. In particular, the displacement demand was calculated using the displacement response spectrum corresponding to the actual shake table earthquake motion that caused wall collapse (or near collapse). This approach was found to give displacements in reasonable agreement with the wall’s displacement capacity.     

从"圣·迭戈"号沉船考古看海上的社会生活

对古代航海船只上社会群体生活状况的研究是社会史研究的重要课题,也是人类航海史研究不可或缺的内涵构成。但由于资料的缺乏,海上社会生活研究一直没有得到足够的关注。近些年来,由于考古工作者对沉船的科学发掘及对生活遗迹与遗物的详细纪录,使得古代海上社会生活的研究获得越来越丰富的资料。本文以"圣·迭哥"号沉船考古发现为基础,并结合文献资料、航海日记以及其他古代沉船的相关信息,对古代海上社会群体的生活状况以及社会关系进行了复原与探讨,以期能为海上社会生活史的深入研究做基础性的工作。     

EDXRF探针分析古瓷产地的尝试

由于古汝瓷原料产地的信息能为汝瓷科技鉴定工作提供可靠的借鉴,本工作采用EDXRF探针技术测试了若干汝瓷和钧瓷等样品中的常量元素及微量元素。再利用多元统计中的因子分析处理成分数据,对各样品的因子得分用因子轮廓图和聚类分析图来表示。结果表明,新安钧瓷、古汝瓷和现代仿汝瓷能较好地加以区分,金钧和元钧能从釉的微量元素上加以区分,严和店窑青瓷也能和其他样品区分开。这说明上述两种数据处理方法相结合能较好地反映出样品中所隐含的产地信息,从而为汝瓷科技鉴定和其他古陶瓷的产地分析提供了参考。     

再从引文分析看大陆华侨华人研究——以1999—2008年《华侨华人历史研究》载文为例

本文采用文献计量学方法对《华侨华人历史研究》1999—2008年刊发的372篇论文的引文数量、引文类型、引文年代、半衰期、普赖斯指数、期刊自引率等指标进行统计分析,以反映华侨华人研究的现状和水平。得出结论：《华侨华人历史研究》平均引文率高,研究的实力增强;引文涉猎范围广,但核心区效应不明显;引文类型多样,以图书为主;研究人员利用外文文献的能力需加强;文献知识更新速度慢,应引起文献收藏部门的注意。     

Stone Tool Research at the End of the Millennium: Classification, Function, and Behavior

This is the second of the two papers that review the literature of archaeological lithic analysis over the last decade. This paper concentrates on aspects of stone tool research that are not directly related to the production or procurement of the tools themselves. It is divided into classification, functional analyses, behavioral processes, and approaches to the subject currently popular among analysts. As with the previous paper, an attempt has been made to be as comprehensive as is reasonable, though availability of sources has resulted in an emphasis on North American literature.     

Chagyrskaya Cave:A Middle Paleolithic Site In The Altai

This article presents the results of multidisciplinary studies conducted at Chagyrskaya – an Upper Pleistocene karst cave in the northwestern Altai where Middle Paleolithic stone tools and fossil remains of Neanderthals were found. Taphonomic aspects of the site are addressed, and results of science-based analyses including radiocarbon and paleomagnetic dating are presented. The deposits are similar to loess-like Upper Pleistocene loams of Western Siberia. Among the Middle Paleolithic industries of the Altai, the Chagyrskaya industry is paralleled only by that of Okladnikov (formerly Sibiryachikha) Cave. Both represent a local Middle Paleolithic Mousteroid facies, named Sibiryachikha after the eponymous site.     

Migration and Viking Dublin: paleomobility and paleodiet through isotopic analyses

During the early medieval period in Ireland, Dublin was established as the largest Viking settlement on the island in the ninth century AD. A previous biodistance study has suggested that the population of the town consisted of a polyethnic amalgam of immigrant and indigenous. In this study, we use biogeochemistry to investigate paleomobility and paleodiet in archeological human remains from the ninth to eleventh century levels at the sites at Fishamble Street II (National Museum of Ireland excavation number E172), Fishamble Street III (E190) and John’s Lane (E173), as well as twelfth-century remains from Wood Quay (E132). Through radiogenic strontium isotope, stable oxygen, carbon, and nitrogen isotope, and elemental concentration analyses, we investigate the origins of the individuals who lived and died in early and late Viking Dublin. Mean archaeological human enamel and bone isotope values from Dublin are ⁸⁷Sr/⁸⁶Sr = 0.70975 ± 0.00139 (2σ, n = 22), δ¹³C_{carbonate(V-PDB)} = −14.8‰ ± 0.8‰ (1σ, n = 12), and δ¹⁸O_{carbonate(V-PDB)} = −7.2‰ ± 1.0‰ (1σ, n = 12). Archaeological human bone samples exhibit mean δ¹³C_{collagen(V-PDB)} = −20.8‰ ± 0.5‰ (1σ, n = 12) and mean δ¹⁵N_{collagen(AIR)} = +10.0‰ ± 1.7‰ (1σ, n = 12). Comparing these data with archaeological faunal data from Dublin and published data from northern Europe, we argue that there are no clear immigrants from other parts of the North Atlantic, although there is one clear outlier in both origins and diet. Overall, the relative homogeneity in both paleomobility and paleodiet may support models of acculturation in Viking Dublin, rather than a high number of first-generation immigrants or continued migration from Scandinavia.     

EVALUATION OF CONVENTIONAL AND ADAPTIVE PUSHOVER ANALYSIS II: COMPARATIVE RESULTS

In this paper, the methodology for evaluation of conventional and adaptive pushover analysis presented in a companion paper is applied to a set of eight different reinforced concrete buildings, covering various levels of irregularity in plan and elevation, structural ductility and directional effects. An extensive series of pushover analysis results, monitored on various levels is presented and compared to inelastic dynamic analysis under various strong motion records, using a new quantitative measure. It is concluded that advanced (adaptive) pushover analysis often gives results superior to those from conventional pushover. However, the consistency of the improvement is unreliable. It is also emphasised that global response parameter comparisons often give an incomplete and sometimes even misleading impression of the performance.     

Seismic Load Capacity of Historical Masonry Mosques by Rigid Body Kinetics

ABSTRACT

Kinetic analysis methods based on linear and nonlinear rigid body dynamics are used to evaluate earthquake safety of masonry structures. In this study, the formulas used to calculate the in-plane and out-of-plane load capacities of masonry load-bearing walls were evaluated and a procedure based on rigid body mechanism was proposed to calculate the out-of-plane load capacities of the walls of Ottoman period masonry mosques. New aspects of the method with respect to existing formulations is the inclusion of dynamic axial load and definition of the collapse limit spectral acceleration on the overturning wall. The calculated capacities of the mosque and individual walls were compared with the results of nonlinear pushover analysis and time history analyses performed under 1.0 and 0.5 scaled forms of nine different 3-component ground motion records. It was displayed that the seismic load capacity estimated by the proposed method is very close to the values calculated by pushover and time history analyses. The method was developed on Lala Pasha Mosque, and the reliability and applicability of the proposed methodology is verified on a different historical masonry mosque in comparison to finite element analyses results.     

EVALUATION OF CONVENTIONAL AND ADAPTIVE PUSHOVER ANALYSIS I: METHODOLOGY

In this paper, a methodology is suggested and tested for evaluating the relative performance of conventional and adaptive pushover methods for seismic response assessment. The basis of the evaluation procedure is a quantitative measure for the difference in response between these methods and inelastic dynamic analysis which is deemed to be the most accurate. Various structural levels of evaluation and different incremental representations for dynamic analysis are also suggested. This method is applied on a set of eight different reinforced concrete structural systems subjected to various strong motion records. Sample results are presented and discussed while the full results are presented alongside conclusions and recommendations, in a companion paper.     

河南博物院展室空调滤网吸附灰尘的分析

博物馆环境中的粉尘对文物有不利的影响,需了解其成分和来源,为文物的保存环境的选择提供科学的数据。为此,采用红外光谱、X射线衍射、扫描电镜等手段对河南博物院空调滤网上的粉尘进行了成分分析和形貌分析。分析结果显示,粉尘包括无机的硅酸盐物质和各种纤维。分析结果说明,博物馆展室这样的人工环境中仍然含有对文物有危害的因素,而空调措施对去除粉尘具有一定的作用。     

A Multi-Method Approach to Inferring Early Agriculturalists’ Stone Tool Use at the Crescent Bay Hunt Club Site

While there has been much research on the function of stone tools via use-wear analysis, it is clear that a multipronged approach, including an evaluation of material acquisition, production, and tool use, is necessary if tool function is going to prove truly useful for understanding past cultures. Moreover, the role of chipped lithic tools in the economies of agriculture-based populations has seen little research compared to preagricultural systems. A sample of lithic artifacts from the Crescent Bay Hunt Club site, a twelfth- to fourteenth-century Oneota village at Lake Koshkonong in southeastern Wisconsin, are subjected to a multiple-method analysis to determine individual tool use. An assemblage-based analysis provides an overall understanding of the lithic economy. A combination of microscopic identification of edge damage and surface polishes and an analysis of protein residue provides independent lines of evidence that yield strong inferences about tool use in the lithic economies of sedentary agricultural groups in the midcontinent.     

Of Barriers to Entry for Medium and Large n Multiple Streams Applications: Methodological and Conceptual Considerations

Recent literature reviews on contributions applying the multiple streams framework (MSF) concluded that although the framework is prolific, there is a lack of contributions testing it in a larger sample size. By addressing which barriers to entry medium and large n MSF applications face and by suggesting ways to handle them, we aim at providing researchers with a benchmark contribution for developing MSF‐guided research designs based on a medium to a high number of cases. Building on an overview of the few existing medium and large n MSF studies, we address three challenges researchers must deal with: (1) choice of dependent variables and case selection; (2) operationalization and measurement of the framework's (predominantly figurative) key concepts; and (3) choice of a method that corresponds with the framework's research questions. In the latter regard, we focus on the pros and cons of employing regression analysis and qualitative comparative analysis. We conclude that although the barriers to entry are high for testing the MSF in a larger sample size, they are not insurmountable.     

Investigating Identity and Life Histories: Isotopic Analysis and Historical Documentation of Slave Skeletons Found on the Cape Town Foreshore, South Africa

Isotopic analysis of skeletons excavated during the 1950s has confirmed that they are the remains of shipwreck victims: slaves on board the Portuguese slaving brig Pacquet Real when it sank on 18 May 1818. Twenty-five slaves drowned and the remaining 133 became Prize Negroes at the Cape. The isotopic signatures are consistent with values expected for people living in an African village eating a terrestrially based diet. Analyses of different skeletal elements, i.e., teeth, long bone, and rib, are shown to be a valuable tool in tracing change or consistency in diet during a person's life, because different skeletal elements form at different stages of life and, subsequently, remodel at different rates. A comparison of isotope ratios from different skeletal elements indicates a change in diet in all these individuals, probably coincident with their enslavement. Variation between individuals in the isotopic composition of diets eaten early in life is sufficiently large to deduce heterogeneous origins for the group.