Results 11 to 20 of about 18,922,153 (304)

Understanding with Theoretical Models [PDF]

Journal of Economic Methodology, 2014
This paper discusses the epistemic import of highly abstract and simplified theoretical models using Thomas Schelling’s checkerboard model as an example. We argue that the epistemic contribution of theoretical models can be better understood in the context of a cluster of models relevant to the explanatory task at hand.
Aydinonat, N. Emrah, Ylikoski, Petri
openaire   +4 more sources

Theoretical modeling for the stereo mission [PDF]

Space Science Reviews, 2006
We summarize the theory and modeling efforts for the STEREO mission, which will be used to interpret the data of both the remote-sensing (SECCHI, SWAVES) and in-situ instruments (IMPACT, PLASTIC). The modeling includes the coronal plasma, in both open and closed magnetic structures, and the solar wind and its expansion outwards from the Sun, which ...
Aschwanden, Markus, Burlaga, L. F., Kaiser, Michael L., Ng, C. K., Reames, D. V., Reiner, M. J., Gombosi, T. I., Lugaz, N., Manchester, W., Roussev, I. I., Zurbuchen, T. H., Farrugia, Charles J., Galvin, A. B., Lee, M. A., Linker, Jon A., Mikic, Z., Riley, P., Alexander, David, Sandman, A. W., Cook, J. W., Howard, Russell A., Odstrcil, Dusan, Pizzo, V. J., Kóta, J., Liewer, P. C., Luhmann, J. G., Inhester, Bernd, Schwenn, R. W., Solanki, Sami, Vasyliunas, V. M., Wiegelmann, Thomas, Blush, L., Bochsler, P., Cairns, Iver H., Robinson, P. A., Bothmer, Volker, Kecskemety, K., Llebaria, Antoine, Maksimovic, Milan, Scholer, M., Wimmer-Schweingruber, R. F.   +40 more
openaire   +5 more sources

THEORETICAL MODELS OF DARK ENERGY [PDF]

International Journal of Modern Physics D, 2012
Mounting observational data confirm that about 73% of the energy density consists of dark energy which is responsible for the current accelerated expansion of the Universe. We present observational evidences and dark energy projects. We then review various theoretical ideas that have been proposed to explain the origin of dark energy; they contain the ...
Yoo, Jaewon, Watanabe, Yuki
openaire   +3 more sources

Determining radium-226 concentration from radon-222 emanation in building materials: a theoretical model

Brazilian Journal of Radiation Sciences, 2019
It was developed an improved theoretical model capable to estimate the radium concentration in building materials solely measuring the radon-222 concentration in a confined atmosphere.
Rafael Carvalho Barreto, Allan F. N. Perna, Danielle C. Narloch, Flavia Del Claro, Janine N. Correa, Sergei A. Paschuk   +5 more
doaj   +1 more source

Theoretical Modeling Method for Material Removal Characteristics of Abrasive Water Jet Polishing under Rotating Oblique Incidence

Micromachines, 2022
Abrasive water jet polishing (AWJP), as an ultra-precision machining technology, has unique machining advantages. However, the machining application of nozzles in vertical and inclined states is greatly limited because rotational symmetric material ...
Zhiqiang Zhang, Ci Song, Feng Shi, Guipeng Tie, Wanli Zhang, Bo Wang, Ye Tian, Zhanqiang Hou   +7 more
doaj   +1 more source

Mechanical Behavior of a Double-Column Self-Centering Pier Fused with Shear Links

Applied Sciences, 2019
A double-column self-centering pier fused with shear links is a novel structure developed to reduce residual deformation and facilitate post-earthquake repair.
Liangjin Xu, Xinzheng Lu, Qiaoshan Zou, Lieping Ye, Jin Di   +4 more
doaj   +1 more source

A Research Agenda on Open Data Impact Process for Open Innovation

IEEE Access, 2020
Open data and open innovation are two topics currently attracting the attention of academics. But no previous studies consider these fields in combination while using a bibliometric approach.
Diego Corrales-Garay, Marta Ortiz-De-Urbina-Criado, Eva-Maria Mora-Valentin   +2 more
doaj   +1 more source

Theoretical analysis of aluminum honeycomb sandwich panel supported by reinforced concrete wall under low-speed impact load

Science and Engineering of Composite Materials, 2022
Honeycomb materials are widely used across engineering fields. The use of honeycomb sandwich structures as energy dissipation and impact protection materials for reinforced concrete components in the field of civil engineering is a novel concept ...
Yang Ran, Zhang Jigang, Zhou Chenghao, Chen Wenli, Chen Jiguang, Zhao Yang   +5 more
doaj   +1 more source

Research Developments of Aerostatic Thrust Bearings: A Review

Applied Sciences, 2022
In aerostatic thrust bearings (ATBs), a high-pressure gas film with a certain bearing capacity and stiffness is formed by passing high-pressure gas between the moving surface and the static surface.
Qi Zhao, Mingchen Qiang, Yu Hou, Shuangtao Chen, Tianwei Lai   +4 more
doaj   +1 more source

Theoretical solar models [PDF]

Symposium - International Astronomical Union, 1997
In the last two decades the large amount of accurate helioseismic data has open a new possibility to sound the stellar interiors and to test the stellar evolution theory. This has particularly impulsed a critical reexamination of the basic assumptions and physical inputs in solar modelling.
openaire   +1 more source