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Articles by Geomatic Engineering
Mapping disappearance: spatial analysis of vulnerable coastal destinations
Abd-Elhamid, H. F., Zeleňáková, M., Barańczuk, J., Gergelova, M. B., & Mahdy, M. (2023). Historical trend analysis and forecasting of shoreline change at the Nile Delta using RS data and GIS with the DSAS tool. Remote Sensing, 15(7), 1737. https://doi.org/10.3390/rs15071737 Google Scholar Abuodha, P. A. O., & Woodroffe, C. D. (2010). Assessing vulnerability to sea-level rise using a coastal sensitivity index: A case study from southeast Australia. Journal of Coastal Conservation, 14(3), 189–205.
Unified sparse framework for large-scale simulations using the material point method
Status: closed Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse Please provide a reason why you see this comment as being abusive. You might include your name and email but you can also stay anonymous. Please provide a reason why you see this comment as being abusive. Please confirm reCaptcha. Comment* Name: Email: Metrics will be available soon.
Magnitude and controls of snow sublimation at a high-elevation Swiss Alpine site
Status: this preprint is open for discussion and under review for The Cryosphere (TC). Status: open (until 16 Sep 2026) Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse Please provide a reason why you see this comment as being abusive. You might include your name and email but you can also stay anonymous. Please provide a reason why you see this comment as being abusive. Please confirm reCaptcha.
Isotope-enabled modeling of fast streamflow dynamics in a steep Alpine catchment
Status: this preprint is open for discussion and under review for Hydrology and Earth System Sciences (HESS). Status: open (until 28 Sep 2026) Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse Please provide a reason why you see this comment as being abusive. You might include your name and email but you can also stay anonymous. Please provide a reason why you see this comment as being abusive. Please confirm reCaptcha.
Modeling 21st century snow dynamics in Switzerland using high-resolution Climate CH2025 scenarios
Status: this preprint is open for discussion and under review for Hydrology and Earth System Sciences (HESS). Status: open (until 17 Aug 2026) Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse Please provide a reason why you see this comment as being abusive. You might include your name and email but you can also stay anonymous. Please provide a reason why you see this comment as being abusive. Please confirm reCaptcha.
Assessment of coastal vulnerability to sea level rise: a case study of the Kenyan coastline
Abstract Introduction: Kenya's 640 km coastline faces escalating exposure to sea-level rise, yet no integrated, spatially explicit assessment combining physical and socioeconomic vulnerability exists for the entire national coastline. This study addresses that gap by developing the first GIS-based Coastal Vulnerability Index (CVI) at national scale using exclusively open-access data.
EGUsphere - Combined assimilation of Sentinel-2 snow cover fraction and snow station data improves fully distributed snow simulation across multiple spatial scales
Status: this preprint is open for discussion and under review for The Cryosphere (TC). Status: open (until 08 Jul 2026) Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse Please provide a reason why you see this comment as being abusive. You might include your name and email but you can also stay anonymous. Please provide a reason why you see this comment as being abusive. Please confirm reCaptcha.
A universal surface functionalization technique to chemically enhance live microbial cells
Covalent functionalization of bacterial cell surfaces with azide-containing molecules Bacterial cell surfaces naturally display a variety of chemical groups that can serve as targets for covalent functionalization (Wu and Liu, 2022; Liu et al, 2019; Lin et al, 2023). Each of these native residues can be modified with specific chemical methods.
Prospective acceptability, feasibility and outcomes of a primary school-led outdoor play intervention for young children
Bento G, Dias G. The importance of outdoor play for young children’s healthy development. Porto Biomed J. 2017;2:157–60. https://doi.org/10.1016/j.pbj.2017.03.003. Google Scholar Brussoni M, Olsen LL, Pike I, Sleet DA. Risky play and children’s safety: balancing priorities for optimal child development. Int J Environ Res Public Health. 2012;9:3134–48. https://doi.org/10.3390/ijerph9093134. Google Scholar Ferguson M, Teyhan A, Lovell R, Dodd H, Wheeler B, McEachan R.
Vancouver built up fast - but now its older towers face an earthquake reckoning
This article was originally published on The Conversation, an independent and nonprofit source of news, analysis and commentary from academic experts. Disclosure information is available on the original site. This article was originally published on The Conversation, an independent and nonprofit source of news, analysis and commentary from academic experts. Disclosure information is available on the original site.
Vancouver built up fast — but now its older towers face an earthquake reckoning
Today, these towers form the backbone of the West End, and a crucial share of downtown Vancouver’s housing supply, including much of what remains relatively affordable. But there’s a catch. These buildings may be dangerously susceptible to damage from earthquakes. When many of these buildings were designed, seismic requirements in Canada’s national building code were rudimentary. Since then, earthquake science and engineering have advanced significantly, and building codes have changed with them.
In-flow measurement of molecular diffusion coefficients using differential dynamic microscopy
It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties.
Rheological characterization and modeling of ultra-high-velocity fluidized submarine landslides
Submarine landslides are critical phenomena due to their potential to reshape seabed topography, trigger tsunamis, and compromise offshore infrastructure. Understanding the rheological properties, particularly shear stress and viscosity under high shear rates, is essential for comprehending the dynamics of these landslides, a topic often underexplored in previous research.
Extended Modified Bridge System (EMBS) method for decoupling seismic vehicle‐bridge interaction
1 INTRODUCTION In recent years vehicle-bridge interaction (VBI) has gained considerable scholarly interest, largely driven by the proliferation of high-speed railway (HSR) networks worldwide.
Two-step or one-step - are all methods for neonatal incubator decontamination equal?
Structured Summary Healthcare associated pathogens, including Staphylococcus capitis, can contaminate incubator surfaces and are of significant concern in neonatal intensive care units (NICUs). Effective incubator decontamination is essential for infection prevention and control, with submersion decontamination often recommended. This may not always be achievable, with wipe decontamination seen as an alternative.
A microbiological survey approach to understanding the virulence factors of Pseudomonas species in healthcare sinks
Structured summary Hospital water is involved in both the prevention and spread of healthcare associated infections (HCAI). Handwashing is key to reducing the transmission of pathogens, yet numerous outbreaks have been found to be caused by organisms within sinks, taps, and showers. Pseudomonas aeruginosa and increasingly non-aeruginosa Pseudomonas cause waterborne HCAI, however, little is known about the virulence potential of Pseudomonas species found within hospital environments.
Regionalizing the supply chain in process life cycle inventory with multiregional input-output data: An implementation for ecoinvent with EXIOBASE
1 INTRODUCTION Process-based life cycle assessment (LCA) is widely used to assess the environmental impact of products or services. An LCA analysis consists of four phases (ISO, 2006): (1) goal and scope definition, (2) life cycle inventory (LCI) analysis, (3) life cycle impact assessment (LCIA), (4) interpretation (for more details see Supporting Information Section ).
Trends in viable microbial bioburden on surfaces within a paediatric bone marrow transplant unit
Structured Summary Despite their role being historically overlooked, environmental surfaces have been shown to play a key role in the transmission of pathogens causative of healthcare-associated infections (HCAI). To guide infection prevention and control (IPC) interventions and inform clinical risk assessments, more needs to be known about microbial surface bioburden. To identify the trends in culturable bacterial contamination across communal touch sites over time in a hospital setting.
Wake characteristics behind a tidal turbine with surface waves in turbulent flow analyzed with large-eddy simulation
To design tidal stream turbine arrays, turbine wakes need to be fully characterized to assess the adequate row spacing considering environmental factors such as onset turbulence, velocity shear, and surface waves. The role of waves on wake development varies depending on their characteristics, such as wavelength and amplitude, and needs to be carefully understood.
Microfluidic approaches in microbial ecology
Microfluidic approaches in microbial ecology Microbial life is at the heart of many diverse environments and regulates most natural processes, from the functioning of animal organs to the cycling of global carbon. Yet, the study of microbial ecology is often limited by challenges in visualizing microbial processes and replicating the environmental conditions under which they unfold.
Exploring public sentiment and vaccination uptake of COVID-19 vaccines in England: a spatiotemporal and sociodemographic analysis of Twitter data
1. Introduction Since the onset of the COVID-19 pandemic in early 2020, the virus has spread globally, resulting in over 760 million confirmed cases and more than 6.8 million fatalities to date (1). Prior to the introduction of vaccines, the United Kingdom government employed non-pharmaceutical interventions (NPIs), such as national lockdowns and social distancing measures, in an attempt to mitigate viral transmission and prevent the National Health Service (NHS) from reaching capacity (2–4).
Algal proliferation risk assessment using Vine Copula-based coupling methods in the South-to-North Water Diversion Project of China
Xizhi Nong1,2, Jun Zeng1 , Yonghang Ma1 , Lihua Chen1 , Chi Zhang2 , Kourosh Behzadian3,4 and Luiza C.
CFD-DEM modeling of turbidity current propagation in channels with two different topographic configurations
Yang Lu1,2, Xiaolei Liu1,2,3*, Junkai Sun1,2, Xiaotian Xie1,2, Dongyang Li4 and Xingsen Guo1,5 1Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Ocean University of China, Qingdao, China 2Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, China 3Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China 4School of Civil Engineering and Environment, Nanyang Technological...
Boundless Metamaterial Experimentation: Physical Realization of a Unidirectional Virtual Periodic Boundary Condition
Abstract We experimentally implement a one-directional virtual geometric periodicity in an elastic metamaterial. First, unwanted boundary reflections at the domain ends are cancelled through the iterative injection of the polarity-reversed reflected wave field. The resulting boundless experimental state allows for a much better analysis of the influence of metamaterials on the propagating wave field.
Energy-based procedures for seismic fragility analysis of mainshock-damaged buildings
Livio Pedone1*, Roberto Gentile2, Carmine Galasso3 and Stefano Pampanin1 1Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Rome, Italy 2Institute for Risk and Disaster Reduction, University College London, London, United Kingdom 3Department of Civil, Environmental and Geomatic Engineering, University College London, London, United Kingdom In recent decades, significant research efforts have been devoted to developing fragility and vulnerability models for...
CFD-DEM modeling of turbidity current propagation in channels with two different topographic configurations
Yang Lu1, 2, Xiaolei Liu1, 2, 3*, Junkai Sun1, 2, Xiaotian Xie1, 2, Dongyang Li4 and Xingsen Guo1, 5 1Shandong Province Key Laboratory of Marine Environment and Geological Engineering, Ocean University of China, China 2Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, China 3Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, China 4School of Civil and Environmental Engineering,College of Engineering,...
Algal proliferation risk assessment using vine copula-based coupling methods in the South-to-North Water Diversion Project of China
Xizhi Nong1, 2, Jun Zeng1, Yonghang Ma1, Lihua Chen1, Chi Zhang2, Kourosh Behzadian3, 4 and Luiza C.
Energy-based procedures for seismic fragility analysis of mainshock-damaged buildings
Livio Pedone1*, Roberto Gentile2, Carmine Galasso3 and Stefano Pampanin1 1Department of Structural and Geotechnical Engineering, Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Italy 2Institute for Risk & Disaster Reduction, Faculty of Mathematical and Physical Sciences, University College London, United Kingdom 3Department of Civil, Environmental & Geomatic Engineering, Faculty of Engineering Sciences, University College London, United Kingdom The final, formatted...
Estimating passenger emissions from airfares supports equitable climate action
Aviation contributes a growing share of approximately 2.4% of global anthropogenic CO2 emissions (Lee et al 2021) and the sector is very difficult to decarbonise (Schäfer and Waitz 2014, Schäfer et al 2019).
Balancing renewable energy and river resources by moving from individual assessments of hydropower projects to energy system planning
Jeffrey J. Opperman1*, Juan Pablo Carvallo2, Rafael Kelman3, Rafael J. P. Schmitt4, Rafael Almeida5, Emily Chapin6, Alexander Flecker7, Marc Goichot8, Guenther Grill9, Julien J. Harou10,11, Joerg Hartmann12, Jonathan Higgins13, Daniel Kammen14, Erik Martin13, Taina Martins3, Amy Newsock13, Carlos Rogéliz15, Justus Raepple13, Rajesh Sada16, Michele L.
Effects of the Visual Environment on Object Localisation in Posterior Cortical Atrophy and Typical Alzheimer’s Disease
Dilek Ocal1*, Ian D. Mccarthy2, Teresa Poole1, 3, Silvia Primativo4, Tatsuto Suzuki2, Nick Tyler2, Chris Frost1, 3, Sebastian J. Crutch1 and Keir X.
Computational Verification and Experimental Validation of the Vibration-Attenuation Properties of a Geometrically Nonlinear Metamaterial Design
Abstract To prevent the severe effects of earthquake on built systems, structural engineering pursues attenuation of vibrations on structures. A recently surfaced means to structural vibration mitigation exploits the concept of metamaterials, i.e., of configurations able to control wave propagation in specific frequency ranges, termed band gaps.
Bacterial chemotaxis to saccharides is governed by a trade-off between sensing and uptake
Article Info Publication History Accepted: May 3, 2022 Received: November 5, 2021 Publication stage In Press, Accepted Manuscript Footnotes Statement of Significance Bacterial chemotaxis is among the best-studied systems in biology and is paradigmatic of the mechanisms used by cells to link sensory inputs with regulated responses, thus providing insight into the ecological basis of cellular physiology.
The Riverine Organism Drift Imager: A new technology to study organism drift in rivers and streams
Current limitations and planned developments In this work, RODI captured organism drift in acquisition intervals of 1.5 h, determined by the hard-drive capacity of the laptop. This limitation did not prevent longer deployments, only resulting in short interruptions between acquisition intervals, yet required human intervention over the entire period of deployment.
Impact of velocity correlations on longitudinal dispersion in space-Lagrangian advective transport models
Abstract Space-Lagrangian random walk models conceptualize advective transport in terms of collections of particles undergoing fixed-length steps along flow streamlines. The statistics and correlation structure of the underlying flow velocity statistics determine the transit times of particles undergoing advective transport.
A critical review on the role of leakages in the facemask protection against SARS‐CoV‐2 infection with consideration of vaccination and virus variants
The literature review provides an overview of the major regulations on facemasks, the measurement and simulation methods developed to locate and quantify air and particles leakage, and their integration within larger-scale epidemiological models. The presented computational model is a tool to estimate the impact of various parameters on the infection risk and helps inform decisions on mask mandates and future regulations on facemasks.
Growing environmental footprint of plastics driven by coal combustion - Nature Sustainability
Abstract Research on the environmental impacts from the global value chain of plastics has typically focused on the disposal phase, considered most harmful to the environment and human health. However, the production of plastics is also responsible for substantial environmental, health and socioeconomic impacts. We show that the carbon and particulate-matter-related health footprint of plastics has doubled since 1995, due mainly to growth in plastics production in coal-based economies.
Sinking enhances the degradation of organic particles by marine bacteria - Nature Geoscience
Abstract The sinking of organic particles in the ocean and their degradation by marine microorganisms is one of the main drivers of the biological pump. Yet, the mechanisms determining the magnitude of the pump remain poorly understood, limiting our ability to predict this carbon flux in future ocean scenarios. Current ocean models assume that the biological pump is governed by the competition between sinking speed and degradation rate, with the two processes independent from one another.
Collaborative management of the Grand Ethiopian Renaissance Dam increases economic benefits and resilience - Nature Communications
Abstract The landscape of water infrastructure in the Nile Basin is changing with the construction of the Grand Ethiopian Renaissance Dam. Although this dam could improve electricity supply in Ethiopia and its neighbors, there is a lack of consensus between Ethiopia, Sudan, and Egypt on the dam operation. We introduce a new modeling framework that simulates the Nile River System and Egypt’s macroeconomy, with dynamic feedbacks between the river system and the macroeconomy.
An “occlusive thrombosis-on-a-chip” microfluidic device for investigating the effect of anti-thrombotic drugs
An “occlusive thrombosis-on-a-chip” microfluidic device for investigating the effect of anti-thrombotic drugs† Jess Berry,a François J. Peaudecerf, b Nicole A. Masters,c Keith B. Neeves, c Raymond E. Goldsteind and Matthew T.
Variational-LSTM autoencoder to forecast the spread of coronavirus across the globe
Loading metrics Open Access Peer-reviewed Research Article Mohamed R. Ibrahim , James Haworth, Aldo Lipani, Nilufer Aslam, Tao Cheng, Nicola Christie Mohamed R. Ibrahim, James Haworth, Aldo Lipani, Nilufer Aslam, Tao Cheng, Nicola Christie Published: January 28, 2021 https://doi.org/10.1371/journal.pone.0246120 Figures Abstract Modelling the spread of coronavirus globally while learning trends at global and country levels remains crucial for tackling the pandemic.
Sequential capillarity-assisted particle assembly in a microfluidic channel
Sequential capillarity-assisted particle assembly in a microfluidic channel† Roberto Pioli,a Miguel Angel Fernandez-Rodriguez, bc Fabio Grillo, b Laura Alvarez, b Roman Stocker,a Lucio Isa *b and Eleonora Secchi *a Author affiliations * Corresponding authors a Institute of Environmental Engineering, Department of Civil, Environmental and Geomatic Engineering, ETH Zürich, Stefano-Franscini-Platz 5, 8093 Zürich, Switzerland E-mail: esecchi@ethz.ch b Laboratory for Soft Materials and...
Trophic Interactions and the Drivers of Microbial Community Assembly
Summary Despite numerous surveys of gene and species content in heterotrophic microbial communities, such as those found in animal guts, oceans, or soils, it is still unclear whether there are generalizable biological or ecological processes that control their dynamics and function.
PhenoChip: A single-cell phenomic platform for high-throughput photophysiological analyses of microalgae
Abstract Photosynthetic microorganisms are key players in aquatic ecosystems with strong potential for bioenergy production, yet their systematic selection at the single-cell level for improved productivity or stress resilience (“phenotyping”) has remained largely inaccessible.
Diffusion of flue gas desulfurization reveals barriers and opportunities for carbon capture and storage
Abstract Addressing climate change may require rapid global diffusion of Carbon Capture and Storage (CCS). To understand its potential diffusion, we analysed a historical analogy: Flue Gas Desulfurization (FGD) in the global coal power market. Our findings challenge common patterns: diffusion of FGD is not described by a single S-curve but by multiple steps and does not slow down after materiality.
A single touch can provide sufficient mechanical stimulation to trigger Venus flytrap closure
Loading metrics Open Access Peer-reviewed Research Article Jan T. Burri , Eashan Saikia , Nino F. Läubli , Hannes Vogler , Falk K. Wittel, Markus Rüggeberg, Hans J. Herrmann, Ingo Burgert, Bradley J. Nelson , Ueli Grossniklaus Jan T. Burri, Eashan Saikia, Nino F. Läubli, Hannes Vogler, Falk K. Wittel, Markus Rüggeberg, Hans J. Herrmann, Ingo Burgert, Bradley J.
Propagation of Respiratory Aerosols by the Vuvuzela
Loading metrics Open Access Peer-reviewed Research Article Ka-Man Lai, Christian Bottomley, Ruth McNerney Ka-Man Lai, Christian Bottomley, Ruth McNerney Published: May 23, 2011 https://doi.org/10.1371/journal.pone.0020086 Figures Abstract Vuvuzelas, the plastic blowing horns used by sports fans, recently achieved international recognition during the FIFA World Cup soccer tournament in South Africa.
COVID-19 pandemic - let's not forget surfaces
Sir, Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), responsible for the current pandemic, is spread by droplet transmission and is not thought to be airborne. In indoor environments, there is growing concern over how the virus can circulate within a space. Due to droplet transmission, a 2-m distance has been implemented in the UK.
Seasonal hysteresis of surface urban heat islands
Researchers report the presence of ribose and other sugars in meteorites, and the arrival of such sugars on Earth may have given rise to early biopolymers.
Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
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