Results 91 to 100 of about 20,803 (266)
Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Gluing approximate solutions of minimum type on the Nehari manifold
Electronic Journal of Differential Equations, 2001 In the last decade or so, variational gluing methods have been widely used to construct homoclinic and heteroclinic type solutions of nonlinear elliptic equations and Hamiltonian systems.
Yanyan Li, Zhi-Qiang Wang
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Deep Underground Science and Engineering, EarlyView.High atmospheric pressure (120 kPa) in deep underground counteracts humidity‐induced physiological stress in plants, stabilizing water balance and enhancing antioxidative defenses. This synergy boosts biomass despite elevated humidity, demonstrating sustainable deep underground agriculture potential under climate uncertainty.
Yuxin He +6 more
wiley +1 more source
Existence of solitons for discrete nonlinear Schrodinger equations
Electronic Journal of Differential Equations, 2016 By using the Mountain Pass Lemma, we establish sufficient conditions for the existence of solitons for the discrete nonlinear Schrodinger equations.
Haiping Shi, Yuanbiao Zhang
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The Mountain Passes in Norðradalur
Fróðskaparrit - Faroese Scientific Journal, 2017 The article deals with the names of two mountain passes used by people travelling to or from Norðradalur. The passes exhibit a wide variety of names in written and oral sources. The more northerly one is called Norðaraskarð, Norðaraskarð í Norðradali, Norðara Norðradalsskarð, Neytaskarð, Norðradals skarð, Skarðið, while its neighbour to the south ...
openaire +2 more sources
Warming summers limit reindeer grazing, weakening herbivory pressure in the mountain tundra
Ecography, EarlyView.Climate change is predicted to alter species interactions by exposing ecosystems to increasingly frequent and intense warm spells. In the mountain tundra, grazing by large herbivores, particularly reindeer, can limit shrub expansion and preserve Arctic plant diversity.
Marianne Stoessel +2 more
wiley +1 more source
Existence of nontrivial solutions for a class of elliptic systems
Electronic Journal of Differential Equations, 2013 Using a version of the generalized mountain pass theorem, we obtain the existence of nontrivial solutions for a class of superquadratic elliptic systems.
Chun Li, Zeng-Qi Ou, Chun-Lei Tang
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Mountain Pass on a Closed Convex Set
Journal of Mathematical Analysis and Applications, 1997 The author proves a version of the mountain pass theorem for a functional defined on a closed convex set of a Banach space. Such a functional does not necessarily satisfy the Palais-Smale condition. This abstract result is applied to the study of the semilinear Dirichlet problem \[ \begin{cases} -\Delta u+u^2 =f(x) \quad & \text{in } \Omega,\\ u=0 ...
openaire +2 more sources
Environmental Policy and Governance, EarlyView.ABSTRACT Nature‐based solutions (NBS) for climate adaptation encompass a range of approaches that work with nature to increase resilience to climate change while providing ecological, economic and social co‐benefits. These solutions have frequently been put forward for application in urban contexts, such as the creation of urban forests, but can ...
Anita Vollmer +2 more
wiley +1 more source
Multiplicity of solutions for non-homogeneous Neumann problems in Orlicz-Sobolev spaces
Electronic Journal of Differential Equations, 2017 This article concerns the existence of non-trivial weak solutions for a class of non-homogeneous Neumann problems. The approach is through variational methods and critical point theory in Orlicz-Sobolev spaces.
Shapour Heidarkhani +4 more
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