Results 111 to 120 of about 60,581 (289)

Effects of flow regime on the young stages of salmonid fishes. Summary and conclusions based on results for 1981-1985 [PDF]

, 1985
The main British salmonid species spawn in clean gravel in streams and rivers, many of them in the upland areas of Britain. The earliest stages of the life cycle (eggs and alevins) spend some months within the gravel of the river bed.
Crisp, D.T.
core  

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

Estimation of scour depth at a single non-submerged vertical spur dike under unidirectional currents

Water Science and Engineering
Accurately estimating equilibrium scour depths at spur dikes remains challenging due to the complexity of scour around these structures. Scour critically threatens spur dikes built in river estuaries for enhancing navigability and preventing bank erosion.
HtayHtay Aung, Min-xi Zhang, Giuseppe Oliveto, Beniamino Onorati, Guo-liang Yu   +4 more
doaj   +1 more source

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

Scour due to turbulent wall jets downstream of low-/high-head hydraulic structures

Cogent Engineering, 2016
To overcome over-prediction of the scour depths by existing methods, a mathematical model is developed based on a work transfer theory. This model predicts the equilibrium scour hole’s depth and length due to two-dimensional turbulent wall jets ...
Youssef I. Hafez
doaj   +1 more source

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

Experimental investigation of scour downstream of a type A trapezoidal piano key weir under free and submerged flow conditions

Journal of Hydrology and Hydromechanics
In this paper, the scour downstream of a trapezoidal Piano key weir (PKW) is investigated under free and submerged flow conditions. For this purpose, an experimental model was used in a laboratory channel with a length of 10 m, width of 0.75 m, and ...
Bodaghi Elnaz, Abdi-Chooplou Chonoor, Ghodsian Masoud   +2 more
doaj   +1 more source

Influence of Seabed Scouring on the Bearing Capacity of Suction Caisson Foundations of Offshore Wind Turbines

Journal of Marine Science and Engineering
Local scour around suction caisson foundations has emerged as a significant geotechnical hazard for offshore wind turbines as developments extend into deeper waters.
Zhuang Jin, Xuan Liu, Mayao Cheng, Maozhu Peng, Jie Yang   +4 more
doaj   +1 more source

Functional Stability Despite Taxonomic Changes in Mixed‐Species Foraging Flock Participants Along an Elevational Gradient in Knuckles Montane Reserve, Sri Lanka 斯里兰卡纳克斯山地保护区 (Knuckles Montane Reserve) 海拔梯度上混合物种觅食群参与者的功能稳定性与分类变化

Integrative Conservation, EarlyView.
This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara, Iresha Wijerathne, Tharuka Wickramasinghe, Sriyani Wickramasinghe   +3 more
wiley   +1 more source