Results 91 to 100 of about 62,074 (317)

German Colonial Expansion into China in the Late 19th Century

open access: yesHistoria provinciae: журнал региональной истории
The article examines the policy pursued by Germany in the East Asian region in the late 19th century aimed at acquiring an ice-free port in China for further economic expansion in the region.
Aleksandr S. Tikhonov
doaj   +1 more source

A Hobbling Marriage: On the Relationship Between the Collections and the Societal Mission of the Museum of National Antiquities in Stockholm

open access: yesCurrent Swedish Archaeology, 2009
In the late 19th century, the new Museum of National Antiquities in Stockholm was a cutting-edge institution for the presentation of ideas of a universal human development from primitive to modern —ideas that were at the heart of the European colonial ...
Mikael Jakobsson, Anna Källén
doaj   +1 more source

The Origins of Complex Geometry in the 19th Century [PDF]

open access: yesarXiv, 2015
This paper gives an overview of several key innovations in the 19th century which led to complex geometry in the 20th century. This includes the creation of the complex plane, the work of Abel on addition theorems for generalized elliptic integrals, the theory of elliptic functions, holomorphic functions, and the creation of Riemann surfaces by Riemann
arxiv  

Fotograficzna dokumentacja teatru w Polsce

open access: yesPamiętnik Teatralny, 1960
This article is concerned with the history of photographic documentation in Polish theater, with a particular focus on the 19th and early 20th centuries.
Jerzy Got
doaj   +1 more source

How can one explain changes in the monthly pattern of suicide? [PDF]

open access: yesarXiv, 2014
The monthly pattern of suicides has remained a puzzle ever since it was discovered in the second half of the 19th century. In this paper we intend to "explain" not the pattern itself but rather its changes across countries and in the course of time.
arxiv  

CurFi: An automated tool to find the best regression analysis model using curve fitting

open access: yesEngineering Reports, Volume 4, Issue 12, December 2022., 2022
An automated curve fitting system named “CurFi” is developed that uses linear regression models to fit a curve to a dataset and to find out the best fit model. The system facilitates to upload a dataset, split the dataset into training set and test set, select relevant features and label from the dataset; and the system will return the best fit linear ...
Ayon Roy   +4 more
wiley   +1 more source

From quaternions to cosmology: spaces of constant curvature, ca. 1873-1925 [PDF]

open access: yesProceedings of the ICM, Beijing 2002, vol. 3, 935--946, 2003
After mathematicians and physicists had learned that the structure of physical space was not necessarily Euclidean, it became conceivable that the global topological structure of space was non-trivial. In the context of the late 19th century debates on physical space this speculation gave rise to the problem of classifying spaces of constant curvature ...
arxiv  

A bothremydid turtle (Pleurodira) from the middle Cenomanian of Vale de Figueira (Belas, Portugal)

open access: yesThe Anatomical Record, EarlyView.
Abstract An unpublished turtle shell from the middle Cenomanian of Vale de Figueira, near Belas (Lisbon District, Portugal), is recognized by us as collected in 1880 under the direction of Carlos Ribeiro. No turtle remains from that region had so far been figured, described or discussed from a systematic point of view.
Miguel Telles Antunes   +1 more
wiley   +1 more source

Autogenous self‐healing of concrete: Experimental design and test methodsA review

open access: yesEngineering Reports, Volume 5, Issue 1, January 2023., 2023
Concrete exhibits an intrinsic ability to heal cracks, defined as “autogenous self‐healing.” However, despite code restrictions, autogenous self‐healing of concrete shows limited effectiveness in practice. This indicates the need for further research to provide engineers with reliable design rules.
Daniel Lahmann   +2 more
wiley   +1 more source

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