Results 91 to 100 of about 61,870 (307)

A New Method for Mixed Matrix Composite Membranes Preparation Using Direct Spray‐Coating Technique

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT The development of membranes has evolved over the last years as an effective CO2 separation technology to fight the environmental impact of post‐combustion processes. In this regard, the upgrade of conventional polymers has been approached through different strategies to overcome their permeance‐selectivity trade‐off.
Paloma Ortiz‐Albo, Juliette Tinevez, Izumi Kumakiri, João Crespo, Luísa A. Neves   +4 more
wiley   +1 more source

Numerical investigation of scour behavior around complex piers under flood conditions

Frontiers in Built Environment
IntroductionLocal scour at bridge piers is a primary cause resulting bridge failure, a risk that is significantly exacerbated under extreme hydrodynamic events such as floods.MethodsThis study presents a numerical investigation of the scour behavior ...
Qiang Qin, Liangliang Shi, Yufei Li, Yujie Li, Haozhou Qin, Gang Ren, Zhiying Yang   +6 more
doaj   +1 more source

Operating Capacity, Pricing and Supply Elasticity in Container Shipping Markets

International Journal of Finance &Economics, EarlyView.
ABSTRACT We investigate the channels through which changes in operating capacity influence freight rates in the container shipping market using a novel dataset to create an operating capacity index at the shipping‐route level. Our analysis reveals that when supply elasticity is low, an increase in operating capacity tends to drive freight rates upward,
Cong Sui, Shang Wang, Jingmin Liang, Nikos K. Nomikos   +3 more
wiley   +1 more source

Influence of scour depth and flow velocity field on large-diameter pier group pile foundations

Frontiers in Marine Science
Sea-crossing bridges face critical challenges due to scour, which can destabilize foundations. This study investigates the scour characteristics of the large-diameter main pier of the Haiwen Bridge, with a pile diameter of 4.3 meters. Seabed changes were
Junfeng Shi, Changhai Han, Huijuan Guo, Kaiwen Yu, Kang Han   +4 more
doaj   +1 more source

Estimation of Scour Depth at Bridge Piers by Using FASTER Model and Experimental Formulas [PDF]

مهندسی منابع آب, 2017
Bridges are one of the most important river structures. One of the main causes of bridge failure is local scour at bridge piers. Yearly, Many bridges failed around the world because of disregarding hydraulic factors.
Elham Ghanbari Adivi, Mahmood Kashefipour Dezfuli   +1 more
doaj  

Lecture notes on sediment transportation and channel stability [PDF]

, 1961
These notes have been prepared for a series of lectures on sediment transportation and channel stability given by the authors to a group of engineers and geologists of the U. S. Department of Agriculture assembled at Caltech on September 12-16,1960. The
Brooks, Norman H., Kennedy, John F. (John Fisher), Vanoni, Vito A.   +2 more
core   +1 more source

Interplay Between Green Investment and Market Price Premia in Global Shipping

International Journal of Finance &Economics, EarlyView.
ABSTRACT Existing research emphasises that the driver of green investment is its future profitability. This paper shows that other investors' decisions also influence green investment. We take the example of scrubber installation in shipping, which is optional by regulation but has an established market for trading its underlying asset.
Yao Shi, Nikos C. Papapostolou, Malvina Marchese, Ioannis C. Moutzouris, Angelos Efstathiou   +4 more
wiley   +1 more source

Modeling of local scour depth downstream hydraulic structures in trapezoidal channel using GEP and ANNs

Ain Shams Engineering Journal, 2013
Local scour downstream stilling basins is so complex that it makes it difficult to establish a general empirical model to provide accurate estimation for scour depth. Lack estimation of local scour can endanger to stability of hydraulic structure and can
Yasser Abdallah Mohamed Moussa
doaj   +1 more source

Monopile response to scour and scour protection

, 2020
Scour of seabed sediments can occur around offshore structures, the resultant reduction in strength and stiffness of the structure’s foundations presents operational challenges for monopile-supported offshore wind turbine structures. Turbines are at risk of reduced operation or even premature decommissioning if scour causes the natural frequency of a ...
openaire   +2 more sources

Obstetrics and gynecology devices designed for low‐ and middle‐income countries: A narrative review

International Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 71-80, April 2025.
Abstract There are many barriers contributing to poor health outcomes for women in low‐ and middle‐income countries (LMICs), one of which is the lack of necessary medical devices. Presently, the development of various kinds of devices intended to improve women's health outcomes specifically in LMICs remains underrepresented in the literature; therefore,
Dhanalakshmi Thiyagarajan, Enaam A. Adanu, K. Rivet Amico   +2 more
wiley   +1 more source