Results 71 to 80 of about 1,359,000 (342)

Border Proximity, Ports, and Railways: Analyzing Their Impact on County-Level Economic Dynamics in Hungary, 2001–2020

open access: yesEconomies, 2023
In this research, our primary objective is to dissect the influence of specific locational elements—proximity to international borders, substantial ports, and significant railway junctions—on the economic vitality of Hungary’s counties from 2001 to 2020.
Roman Fedorenko   +2 more
doaj   +1 more source

A valve concept for remote fluid flow control [PDF]

open access: yes, 1972
Valve concept has been devised which offers lightweight, simplified mechanism capable of automatic control of large number of fluid flow ports. Valve control is achieved with valve stem which is bimetallic device activated by heating coil to open or ...
Flynn, W. J.
core   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán   +13 more
wiley   +1 more source

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

open access: yesAdvanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh   +4 more
wiley   +1 more source

Mitochondria: the central hub linking exercise to enhanced cardiac function

open access: yesFrontiers in Physiology
Sedentary lifestyle is a major risk factor for the occurrence and development of cardiovascular disease, which remains one of the leading contributors to global morbidity and mortality.
Jiaqin Cai, Tutu Wang, Shunchang Li
doaj   +1 more source

Implications of climate change for shipping: Ports and supply chains

open access: yes, 2018
Ports are an important economic actor—at local, national, and international scales—that have been identified as being vulnerable to future changes to the climate.
A. Becker, A. Ng, D. McEvoy, J. Mullett
semanticscholar   +1 more source

Evaluating the Environmental Performance and Operational Efficiency of Container Ports: An Application to the Maritime Silk Road

open access: yesInternational Journal of Environmental Research and Public Health, 2019
A major goal for port authorities, operators, and investors is to achieve efficient operations and effective environmental protection. This is because the environmental performance of a container port is important for its competitiveness and sustainable ...
Gang Dong   +4 more
semanticscholar   +1 more source

A Vascular Microphysiological Model of Lung Fibrosis Reveals That Myofibroblasts and IPF Patient‐Derived Fibroblasts Impair Angiogenesis and Vasculogenesis

open access: yesAdvanced Functional Materials, EarlyView.
A microphysiological lung fibrosis model recapitulates myofibroblast–vascular interactions. Induced myofibroblasts and patient‐derived IPF fibroblasts impair angiogenesis and increase vascular permeability via TGF‐β1–driven signaling. Pharmacological interventions with SB 431542 and VEGF supplementation restore vascular morphology and barrier function.
Elena Cambria   +7 more
wiley   +1 more source

The impact of physical activity on mental health in obese female college students: the role of flow experience in mediation and intrinsic motivation in moderation

open access: yesFrontiers in Psychology
BackgroundObesity and mental health are currently among the major global health issues. Obesity not only increases the risk of chronic diseases but also has negative effects on mental health, particularly among female college students.
Zhongsheng Fu, Yunyun Huang
doaj   +1 more source

Port choice by intra-regional container service operators : an application of decision-making techniques to liner services between Malaysian and other Asian ports [PDF]

open access: yes, 2019
Intra-regional container service operators are challenged to design regular and reliable liner services connecting regional ports at the lowest cost and shortest transit time while considering customer demand. This paper focuses on the selection of ports
Fitri Abdul Rahman, Noorul Shaiful   +3 more
core   +2 more sources

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