Results 61 to 70 of about 16,133 (302)
InfoScience, EarlyView.With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong +8 more
wiley +1 more source
Cosmological constant in spinfoam cosmology [PDF]
Physical Review D, 2011 4 pages, 2 ...
Bianchi, Eugenio +3 more
openaire +2 more sources
The Exact Value of the Cosmological Constant [PDF]
, 2020 Aim: The theoretical value of the cosmological constant Lambda and the problem associated with the same is reviewed again. Methods: The stress-energy-tensor was geometrized Results: Based on the geometrized stress-energy tensor, it was possible to ...
Barukčić, Ilija
core +1 more source
People and Nature, EarlyView.Abstract There is rising recognition of resource‐use rights of Indigenous Peoples and Local Communities (IPLCs) within wildlife conservation. Historically, sociocultural institutions ensured wildlife sustainability in many IPLC areas. However, the future viability of such institutions is uncertain as IPLCs change in response to external pressures and ...
Sahil Nijhawan +5 more
wiley +1 more source
The Cosmological constant problem [PDF]
, 2004 URL: http://www-spht.cea.fr/articles/T03/162 (sur invitation).International audienceObservational evidence seems to indicate that the expansion of the universe is currently accelerating.
Brax, Philippe
core +1 more source
People and Nature, EarlyView.Abstract Local religious traditions serve as informal environmental institutions, characterized by socially embedded norms that guide behaviour without formal enforcement and influence human–environment interactions. This study investigates the role of Bonbibi worship as a system of moral regulation in the Bangladeshi Sundarbans and examines the ...
Mohammad Raqibul Hasan Siddique +1 more
wiley +1 more source
Configurational entropy and instability of tachyonic braneworld
Physics Letters B, 2020 We consider tachyonic braneworld with a bulk cosmological constant and investigate a configurational entropy of various magnitudes of scale factor. It is found that for a bulk negative/zero cosmological constant, the configurational entropy has a global ...
Chong Oh Lee
doaj +1 more source
Vacuum Energy, the Casimir Effect, and Newton’s Non-Constant
Universe, 2023 The idea of quantum mechanical vacuum energy contributing to the cosmological vacuum energy density is not new. However, despite the persisting cosmological constant problem, few investigations have focused on this subject.
Benjamin Koch +3 more
doaj +1 more source
Naturally vanishing cosmological constant and its phenomenology [PDF]
, 2022 The principle of naturalness is a powerful tool for investigating the Universe. This thesis constructs a nonlinear supergravity model, which is guided by the naturalness of small cosmological constant.
Qiu, Yu-Cheng
core
The Cosmological parameter: constant or dynamical [PDF]
, 2022 After providing a brief history of the cosmological constant, some early cosmological models are discussed. The most popular current cosmological model is the ΛCDM model, but there are several problems associated with this model, e.g., the cosmological ...
Aroonkumar Beesham (11907970) +1 more
core +1 more source