Results 61 to 70 of about 25,508 (290)

Almost commutative Riemannian geometry: wave operators

, 2011
Associated to any (pseudo)-Riemannian manifold $M$ of dimension $n$ is an $n+1$-dimensional noncommutative differential structure $(\Omega^1,\extd)$ on the manifold, with the extra dimension encoding the classical Laplacian as a noncommutative `vector ...
A. Connes, A. Sitarz, E.J. Beggs, E.J. Beggs, G. Amelino-Camelia, J. Mourad, M. Dubois-Violette, M. Dubois-Violette, S. Majid, S. Majid, S. Majid, S. Majid, S. Majid, Shahn Majid   +13 more
core   +1 more source

Asymptotic dynamics of thermal quantum fields [PDF]

, 2001
It is shown that the timelike asymptotic properties of thermal correlation functions in relativistic quantum field theory can consistently be described in terms of free fields carrying some stochastic degree of freedom which couples to the thermal ...
Abrikosov, Arnold, Blaizot, Blaizot, Braaten, Bros, Bros, Bros, Bros, Detlev Buchholz, Dolan, Jacques Bros, Klauder, Kopper, Landsman, Landsman, Le Bellac, Narnhofer, Steinmann, Symanzik, Symanzik, Weldon, Weldon   +22 more
core   +4 more sources

Scope 3 Carbon Emissions Assessment for Manufacturing SMEs

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This paper addresses the challenges facing managers of Small‐ and Medium‐Size Enterprises (SMEs) when conducting environmental sustainability assessment at the value chain level, particularly Scope 3 Greenhouse Gases (GHG) emissions. The paper investigates issues related to data availability and data quality for Scope 3 assessment and ...
Kourosh Halat, Stephen Childe, Nick Golding, John Summerscales   +3 more
wiley   +1 more source

Construction of bosonic string theory on infinitely curved Anti-de Sitter space

, 2003
Free scalar field theory in the sector with a large number of particles can be interpreted as bosonic string theory on anti-de Sitter space of vanishing radius.
Adam Clark, Andreas Karch, Daisuke Yamada, G. ’t Hooft, H. J. De Vega, I. R. Klebanov, O. Aharony, Pavel Kovtun, R. Giles, R. Kallosh, R. R. Metsaev, S. Dalley, S. J. Chang, T. Banks   +13 more
core   +1 more source

Maximally localized states and causality in non commutative quantum theories [PDF]

, 2001
We give simple representations for quantum theories in which the position commutators are non vanishing constants. A particular representation reproduces results found using the Moyal star product.
A. Kempf, A. Kempf, A. Kempf, D. Bigatti, F.W. Stecker, H. Hinrichsen, J. Gamboa, M. Chaichian, M. Chaichian, M. Chaichian, M. Lubo, Musongela Lubo, N. Seiberg, N. Seiberg, R. Brout, S. Coleman, S. Doplicher, S.L. Adler   +17 more
core   +2 more sources

Social Accounting for Work‐Related Injuries: Towards a Sustainable Management of Social Externalities

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The present study seeks to advance the understanding of the determinants of occupational injuries, thereby enhancing both academic knowledge and decision‐making in the management and implementation of occupational health and safety measures.
Rosa María Cañaveras Perea, Ángel Tejada Ponce, María Pilar Sánchez González   +2 more
wiley   +1 more source

Multi-DC commutation safety and system stability coordination control evaluation method [PDF]

MATEC Web of Conferences
Due to the influence of multiple DC commutation failure after AC failure and stable interaction of system frequency, voltage and power Angle, the operation control of power grid is greatly difficult.
Zhang Hongli, Huang Xifang, Xu Guang
doaj   +1 more source

Stability Bounds for the Generalized Kadanoff‐Baym Ansatz in the Holstein Dimer

Contributions to Plasma Physics, EarlyView.
ABSTRACT Predicting real‐time dynamics in correlated systems is demanding: exact two‐time Green's function methods are accurate but often too costly, while the Generalized Kadanoff‐Baym Ansatz (GKBA) offers time‐linear propagation at the risk of uncontrolled behavior. We examine when and why GKBA fails in a minimal yet informative setting, the Holstein
Oscar Moreno Segura, Yaroslav Pavlyukh, Riku Tuovinen   +2 more
wiley   +1 more source

Reactive Voltage Emergency Control Strategy of Wind-Thermal-Bundled DC Transmission System Considering Wind Farm Regulation Margin

Zhongguo dianli, 2023
In order to suppress the transient overvoltage of direct current (DC) sending-end power grid and make full use of wind power in the power regulation of wind-thermal-bundled DC transmission system, a reactive voltage emergency control strategy considering
Wenjun ZHOU, Yi CAO, Jie LI, Tao JIN, Wenjian CHEN, Xia ZHOU   +5 more
doaj   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source