Results 11 to 20 of about 1,019,845 (356)

Human Population Density is a Poor Predictor of Debris in the Environment

open access: yesFrontiers in Environmental Science, 2021
There have been a variety of attempts to model and quantify the amount of land-based waste entering the world’s oceans, most of which rely heavily on global estimates of population density as the key driving factor.
Qamar Schuyler   +10 more
doaj   +1 more source

Numerical Simulation Research on Well Pattern Optimization in High–Dip Angle Coal Seams: A Case of Baiyanghe Block

open access: yesFrontiers in Earth Science, 2021
The Baiyanghe block in Fukang, Xinjiang, China, is rich in coalbed methane (CBM) resources, and several pilot experimental wells have yielded high production.
Hongli Wang   +5 more
doaj   +1 more source

The Economics of Border Carbon Adjustment: Rationale and Impacts of Compensating for Carbon at the Border

open access: yesAnnual Review of Economics, 2023
International trade contributes directly to global greenhouse gas emissions, as the carbon content of high-emission products is priced differently in different countries. This phenomenon is termed carbon leakage.
L. Fontagné, Katheline Schubert
semanticscholar   +1 more source

Leak Detection in Viscoelastic Pipeline Using Inverse Transient Analysis [PDF]

open access: yesآب و فاضلاب, 2018
Leakage in water transmission systems and distribution networks in addition to waste of water and energy, can cause a declined water quality due to exposure to contaminants at low pressure conditions as well as damages to roads, buildings, and ...
Mostafa Rahmanshahi   +2 more
doaj   +1 more source

Hidden Markov Models for Pipeline Damage Detection Using Piezoelectric Transducers [PDF]

open access: yesJournal of Civil Structural Health Monitoring (2021), 2020
Oil and gas pipeline leakages lead to not only enormous economic loss but also environmental disasters. How to detect the pipeline damages including leakages and cracks has attracted much research attention. One of the promising leakage detection method is to use lead zirconate titanate (PZT) transducers to detect the negative pressure wave when ...
arxiv   +1 more source

Storing carbon dioxide for climate's sake: contradictions and parallels with enhanced oil recovery

open access: yesFrontiers in Climate, 2023
An increase in carbon capture and storage (CCS) projects, including bioenergy with CCS (BECCS), has led to an urgent demand for storage sites, and Norway stands out for its ongoing and planned geological storage sites in a European context.
Emily Rodriguez
doaj   +1 more source

The Economic Sustainability of Tourism Growth through Leakage Calculation [PDF]

open access: yesTourism Economics, 2015
The development and growth of tourism depend on its sustainability over time and on its benefits for destinations as a whole. However, calculating sustainability is not an easy task. This article focuses on the economic sustainability of tourism growth and, after an exhaustive review of the literature, proposes a quantitative mathematical model to ...
Garrigós Simón, Fernando José   +2 more
openaire   +2 more sources

Study of the Technologies for Freeze Protection of Cooling Towers in the Solar System

open access: yesEnergies, 2022
A cooling tower is an important guarantee for the proper operation of a solar system. To ensure proper operation of the system and to maintain high-efficiency points, the cooling tower must operate year-round.
Jingnan Liu   +5 more
doaj   +1 more source

Development of a Leakage Target Setting Approach for South Korea Based on Economic Level of Leakage [PDF]

open access: yesProcedia Engineering, 2015
AbstractLeakage has become a crucial issue that needs to be addressed effectively by water suppliers in terms of economic management of water systems. A target setting method based on the ELL (Economic Level of Leakage) calculation is proposed in this paper.
Euijeong Lim   +2 more
openaire   +1 more source

Evaluation of therapeutic efficacy, safety and economy of ERCP and LTCBDE in the treatment of common bile duct stones

open access: yesFrontiers in Physiology, 2022
Objectives: This study further compared the endoscopic retrograde cholangiopancreatography (ERCP) and laparoscopic transcystic common bile duct exploration (LTCBDE) approaches in the treatment of common bile duct stones (CBDS) from the perspective of ...
Renjie Zhang   +5 more
doaj   +1 more source

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