scholarly journals Coastal Flooding and Inundation and Inland Flooding due to Downstream Blocking

2019 ◽  
Vol 7 (10) ◽  
pp. 336 ◽  
Author(s):  
Leonard Pietrafesa ◽  
Hongyuan Zhang ◽  
Shaowu Bao ◽  
Paul Gayes ◽  
Jason Hallstrom
Keyword(s):  
Numerical Models ◽  
Wide Spectrum ◽  
Lessons Learned ◽  
Large Area ◽  
Spatial And Temporal Scales ◽  
The Past ◽  
Short Period ◽  
The Future ◽  
Inland Flooding ◽  
Precipitation Events

Extreme atmospheric wind and precipitation events have created extensive multiscale coastal, inland, and upland flooding in United States (U.S.) coastal states over recent decades, some of which takes days to hours to develop, while others can take only several tens of minutes and inundate a large area within a short period of time, thus being laterally explosive. However, their existence has not yet been fully recognized, and the fluid dynamics and the wide spectrum of spatial and temporal scales of these types of events are not yet well understood nor have they been mathematically modeled. If present-day outlooks of more frequent and intense precipitation events in the future are accurate, these coastal, inland and upland flood events, such as those due to Hurricanes Joaquin (2015), Matthew (2016), Harvey (2017) and Irma (2017), will continue to increase in the future. However, the question arises as to whether there has been a well-documented example of this kind of coastal, inland and upland flooding in the past? In addition, if so, are any lessons learned for the future? The short answer is “no”. Fortunately, there are data from a pair of events, several decades ago—Hurricanes Dennis and Floyd in 1999—that we can turn to for guidance in how the nonlinear, multiscale fluid physics of these types of compound hazard events manifested in the past and what they portend for the future. It is of note that fifty-six lives were lost in coastal North Carolina alone from this pair of storms. In this study, the 1999 rapid coastal and inland flooding event attributed to those two consecutive hurricanes is documented and the series of physical processes and their mechanisms are analyzed. A diagnostic assessment using data and numerical models reveals the physical mechanisms of downstream blocking that occurred.

ElectroTextiles - Technology to Applications

2002 ◽  
Vol 736 ◽  
Author(s):  
Elana Ethridge
Keyword(s):  
Small Companies ◽  
Large Area ◽  
Stages Of Development ◽  
Commercial Products ◽  
The Past ◽  
The Future ◽  
Technology Area

ABSTRACTElectroTextiles is a technology area that is in its formative stages of development. Over the past three years, several government and industrial workshops as well as international conferences have discussed and presented fundamental technical approaches and a few small companies are starting to offer commercial products. The combination electronics and textiles offer a new and unique way to fabricate novel large-area, flexible and conformable military and commercial systems. This paper will discuss the some of the challenges that need to be addressed for this technology to mature in the future.

Epilogue

2016 ◽  
pp. 119-122
Author(s):  
Christian W. McMillen
Keyword(s):  
Public Health ◽  
Climate Change ◽  
Lessons Learned ◽  
The Past ◽  
Public Health Infrastructure ◽  
Health Infrastructure ◽  
The World ◽  
The Future ◽  
The Face ◽  
New Challenges

There will be more pandemics. A pandemic might come from an old, familiar foe such as influenza or might emerge from a new source—a zoonosis that makes its way into humans, perhaps. The epilogue asks how the world will confront pandemics in the future. It is likely that patterns established long ago will re-emerge. But how will new challenges, like climate change, affect future pandemics and our ability to respond? Will lessons learned from the past help with plans for the future? One thing is clear: in the face of a serious pandemic much of the developing world’s public health infrastructure will be woefully overburdened. This must be addressed.

scholarly journals (P1-35) Adapting a Humanitarian Organization for Disaster Response, Operation Smile in Haiti, 2010

2011 ◽  
Vol 26 (S1) ◽  
pp. s110-s110
Author(s):  
R. Zoraster ◽  
M. Beers ◽  
T. Crabtree
Keyword(s):  
Disaster Response ◽  
Surgical Care ◽  
Lessons Learned ◽  
Government Organization ◽  
The Past ◽  
Operation Smile ◽  
Short Period ◽  
The World ◽  
Humanitarian Organization

BackgroundOperation Smile International (OSI) is a Non-Government Organization (NGO) with experience providing surgical care throughout the world. OSI has vast logistical capacity, skilled and credential providers, and international relationships. Disaster response had been considered by OSI in the past, but never initiated. However, the magnitude of the Haiti disaster, coupled with request from Haitian OS Partners led to the initial disaster response of the OSI organization.Discussion and ObservationsThis presentation will: (1) Describe the considerations and rationale that led OSI to this intervention. (2) Discuss the process of developing a disaster response within a relatively short period of time. (3) The response itself, and (4) Present how the lessons learned will be adapted to future OSI capacity and planning.

scholarly journals Review of Sand Production Prediction Models

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Hossein Rahmati ◽  
Mahshid Jafarpour ◽  
Saman Azadbakht ◽  
Alireza Nouri ◽  
Hans Vaziri ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Prediction Models ◽  
Numerical Models ◽  
Element Model ◽  
Reservoir Rock ◽  
Sand Production ◽  
The Past ◽  
Short Period ◽  
Analytical Formulae ◽  
The Continuum

Sand production in oil and gas wells can occur if fluid flow exceeds a certain threshold governed by factors such as consistency of the reservoir rock, stress state and the type of completion used around the well. The amount of solids can be less than a few grams per cubic meter of reservoir fluid, posing only minor problems, or a substantial amount over a short period of time, resulting in erosion and in some cases filling and blocking of the wellbore. This paper provides a review of selected approaches and models that have been developed for sanding prediction. Most of these models are based on the continuum assumption, while a few have recently been developed based on discrete element model. Some models are only capable of assessing the conditions that lead to the onset of sanding, while others are capable of making volumetric predictions. Some models use analytical formulae, particularly those for estimating the onset of sanding while others use numerical models, particularly in calculating sanding rate. Although major improvements have been achieved in the past decade, sanding tools are still unable to predict the sand mass and the rate of sanding for all field problems in a reliable form.

Learnings from the past to design metallic bridges spanning centuries into the future

2019 ◽  
Author(s):  
Raed El Sarraf ◽  
Liam Edwards
Keyword(s):  
Regional Economy ◽  
Material Selection ◽  
Transportation Network ◽  
Lessons Learned ◽  
Maintenance Cost ◽  
The Past ◽  
The United Kingdom ◽  
Design Life ◽  
The Future ◽  
Inspection And Maintenance

<p>Since the 20<sup>th</sup> century, modern bridges have been typically designed for a relatively short design life of either 100 or 120 years. In reality, there are numerous examples of bridges that are over 100 years old that are still in service today. In some cases, these bridges have heritage protection status. In other cases, they are a vital link to their transportation network, for which any disruptions will result in significant economic impact to the local or regional economy.</p><p>Over the years, the authors have been involved with the inspection, maintenance, and refurbishment of historic bridges. This paper provides an overview of lessons learnt from examples of historic metallic bridges in New Zealand and the United Kingdom, as well as present the case for a 200-year bridge.</p><p>Lessons learned from failures in design and detailing for durability, material selection, and allowance for future access for inspection and maintenance can be used when designing new bridges, with the aim to minimize future maintenance cost and assisting 21<sup>st</sup> century bridges to span centuries into the future.</p>

Introduction

2020 ◽  
pp. 1-11
Author(s):  
Aleida Assmann
Keyword(s):  
Temporal Order ◽  
General Sense ◽  
The Past ◽  
End Point ◽  
Short Period ◽  
The Future ◽  
Shed Light

This introductory chapter describes a change in the modern temporal order. The first is a general sense that the future is no longer much of a motivator in the arenas of politics, society, and the environment. Indeed, expectations for the future have become extremely modest. Within a relatively short period of time, the future itself has lost the power to shed light on the present, since we can no longer assume that it functions as the end point of our desires, goals, or projections. We have learned from historians that the rise and fall of particular futures is in itself nothing new. However, it is the case not only that particular visions of the future have collapsed in contemporary times, but also that the very concept of the future itself is being called into question. Alongside the future's eclipse, the chapter contends that we are also witnessing another anomaly of our long-held temporal order: the unprecedented return of the past.

The future of emergency management

2004 ◽  
Vol 2 (1) ◽  
pp. 19 ◽  
Author(s):  
Jane A. Bullock ◽  
George D. Haddow
Keyword(s):  
Emergency Management ◽  
Homeland Security ◽  
Lessons Learned ◽  
Organizational Changes ◽  
Department Of Homeland Security ◽  
The Past ◽  
Emergency Managers ◽  
The Us ◽  
The Future ◽  
Us Federal Government

The discipline of emergency management (EM) is at a critical crossroads. Emergency managers around the world are faced with new threats, new responsibilities, and new opportunities. This paper examines the organizational changes made by the US federal government in shaping the new Department of Homeland Security (DHS) and presents three key lessons learned during the past decade that could guide emergency planners as they design and manage EM organizations of the future.

Sign in / Sign up

Export Citation Format

Share Document