Results 121 to 130 of about 10,981,272 (272)

Dynamical Model of Pressure-Gradient-Driven Turbulence and Shear Flow Generation in L-H Transition

, 1994
"We present a dynamical model for the L-H transition consisting of three ordinary differential equations. This model describes temporal evolutions of three characteristic variables, i.e., the free energy contained in the pressure gradient, the turbulent
"Sugama, H., Horton, W."
core  

Drivers of Sustainability Disclosure in the Healthcare Sector: Empirical Evidence From Portugal

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the determinants of online sustainability disclosure in the Portuguese public hospital sector, contributing to the growing literature on sustainability disclosure in healthcare organizations from a context that remains largely underexplored.
Yolanda Ramírez, Francisco Montero
wiley   +1 more source

Portal Hypertension in Childhood Bilateral Wilms' Tumor Survivor: An Excellent Indication for TIPS

Case Reports in Gastrointestinal Medicine, 2013
Introduction. Increased pressure in portal venous system is relatively a rare complication after chemoradiotherapy for Wilms' tumor (WT). In paediatric population, feasibility and efficacy of transjugular intrahepatic portosystemic shunt (TIPS) in portal
Ghassan Nakib, Valeria Calcaterra, Marco Brunero, Ilaria Goruppi, Pietro Quaretti, Lorenzo Paolo Moramarco, Raffaele Bruno, Alessandro Raffaele, Gloria Pelizzo   +8 more
doaj   +1 more source

Climate Vulnerability and Sovereign ESG Performance: The Conditioning Roles of Adaptation Innovation, Institutional Quality and Robot Adoption

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The intensification of physical climate risk presents a critical question for global sustainability governance: does exposure to climate hazards strengthen or weaken a country's environmental, social and governance (ESG) performance? This study investigates the relationship between climate vulnerability and country‐level ESG performance across
Alanoud Al‐Maadid, Mohamed Sami Ben Ali, Brahim Bergougui   +2 more
wiley   +1 more source

Effect of quadratic pressure gradient term on a one-dimensional moving boundary problem based on modified Darcy's law

, 2016
A relatively high formation pressure gradient can exist in seepage flow in low-permeable porous media with a threshold pressure gradient, and a significant error may then be caused in the model computation by neglecting the quadratic pressure gradient ...
刘文超, 姚军, Liu, WC (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China., 陈掌星, Liu, WC (reprint author), China Univ Petr Huadong, Sch Petr Engn, Qingdao 266580, Peoples R China., 刘曰武   +5 more
core   +1 more source

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, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

[Relationship between portal pressure gradient and ascites in cirrhotic patients].

Arquivos de gastroenterologia, 2010
Portal hypertension plays an important role in the pathogenesis of ascites.To evaluate the hepatic venous pressure gradient and the presence of ascites in cirrhotic patients.Eighty-three patients with cirrhosis were evaluated. All of the patients were submitted to ultrasonography to identify ascites and to a hepatic hemodynamic investigation to ...
Sirlei, Dittrich, Angelo Alves de, Mattos, Angelo Zambam de, Mattos, Alexandro Vaesken, Alves, Fernanda Branco de, Araújo   +4 more
openaire   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Estuarine benthic diversity declines with temperature across a tropical–temperate gradient

Ecography, EarlyView.
Estuarine benthic sediments are important habitats that support ecosystem health and productivity, but the drivers of large‐scale patterns in benthic diversity are not well documented. Using 18S amplicon sequencing of 425 sediment DNA samples from estuaries spanning 20° of latitude along Australia's east coast, we assessed tropical–temperate patterns ...
Sally A. Bracewell, Mariana Mayer‐Pinto, Katherine A. Dafforn, Sebastian Vadillo Gonzalez, Thayanne L. Barros, Emma L. Johnston   +5 more
wiley   +1 more source

Generative Models in Inorganic Crystals Discovery and Inverse Design

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Generative inverse‐design samples from the vast inorganic crystal design space by starting from target properties such as band gap, stability, and ion transport. This Review examines the representations, generative models, and validation workflows needed to translate candidate structures into stable, potentially synthesizable materials for applications
Tao Li, Xiaolin Liu, Fei Wang, Yan Xiong, Yu Chen, Yan Zhao   +5 more
wiley   +1 more source