Flow Model Study for Section 227 Demonstration Project in Allegan County, Michigan. National Shoreline Erosion Control Development and Demonstration Program

2007 ◽  
Author(s):  
Clarissa P. Hansen ◽  
Stacy E. Howington ◽  
M. E. Glynn
Keyword(s):  
Flow Model ◽  
Erosion Control ◽  
Demonstration Project ◽  
Shoreline Erosion ◽  
Demonstration Program ◽  
Model Study

scholarly journals LOW-COST SHORELINE PROTECTION

1976 ◽  
Vol 1 (15) ◽  
pp. 164 ◽  
Author(s):  
Billy L. Edge ◽  
John G. Housley ◽  
George M. Watts
Keyword(s):  
Public Interest ◽  
Low Cost ◽  
Private Enterprise ◽  
Erosion Control ◽  
Shoreline Erosion ◽  
Demonstration Program ◽  
Corps Of Engineers ◽  
The Public ◽  
Shoreline Protection

As the public interest in low-cost, self-installed solutions to shoreline erosion continues to grow, the involvement of private enterprise in developing solutions intensifies. Now that low-cost devices are identified as a salable commodity as goods or services, the number of inventors, creative engineers, agronomists, and foresighted planners producing potential designs are rapidly growing. Over two hundred devices, both proven and untested devices, have been cataloged as a part of the National Shoreline Erosion Demonstration Program. This program calls for the Corps of Engineers to plan, establish, and conduct for a period of five years a shoreline erosion control development and demonstration program including physical and vegetative devices.

Retrospective on the 1970’s “Low Cost Shore Protection” program

Shore & Beach ◽  
2019 ◽  
pp. 3-12
Author(s):  
Joan Pope
Keyword(s):  
Coastal Erosion ◽  
Low Cost ◽  
Management Strategies ◽  
Public Information ◽  
Coastal Engineering ◽  
Shoreline Erosion ◽  
Shore Protection ◽  
Demonstration Program ◽  
Alternative Approaches ◽  
The U.S

In the 1970s, the U.S. Congress authorized and funded a five-year demonstration program on low-cost methods for shore protection called the “U.S. Army Engineers Shoreline Erosion Control Demonstration (Section 54) Program.” The Section 54 also known as the “Low-Cost Shore Protection” demonstration program is revisited. Demonstration and monitoring sites including the materials, devices, vegetative plantings, approaches tested, and program findings are discussed. Simply put, a major finding of the Section 54 program was that the concept of “low-cost shore protection” was a bit naïve. However, the program did lead to a wealth of public information documents and practical coastal engineering lessons that are still resonating as home owners, communities, and engineers consider alternative approaches for managing coastal erosion. The program structure and findings are applicable 40 years later as consideration is given toward the use of Natural and Nature-based Features (NNBF) for addressing coastal erosion. Evolution in thought relative to coastal erosion and shoreline enhancement activities since the 1970s has built upon many of the lessons and concepts of the Section 54 program and other real-world coastal erosion management success-failure experiences. This growth has led to a modern appreciation that those features that emulate NNBF are promising and responsible alternative coastal erosion management strategies if proper engineering standard elements of design are included in the project.

External Soft-Tissue Hemostatic Clamp Compared to a Compression Tourniquet as Primary Hemorrhage Control Device in Pilot Flow Model Study

2019 ◽  
Vol 34 (02) ◽  
pp. 175-181 ◽  
Author(s):  
Roland Paquette ◽  
Ryan Bierle ◽  
David Wampler ◽  
Paul Allen ◽  
Craig Cooley ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Blood Loss ◽  
Flow Model ◽  
Statistical Significance ◽  
Control Device ◽  
Fluid Loss ◽  
Hemorrhage Control ◽  
Limb Function ◽  
Model Study ◽  
Primary Hemorrhage

Introduction:Acute blood loss represents a leading cause of death in both civilian and battlefield trauma, despite the prioritization of massive hemorrhage control by well-adopted trauma guidelines. Current Tactical Combat Casualty Care (TCCC) and Tactical Emergency Casualty Care (TECC) guidelines recommend the application of a tourniquet to treat life-threatening extremity hemorrhages. While extremely effective at controlling blood loss, the proper application of a tourniquet is associated with severe pain and could lead to transient loss of limb function impeding the ability to self-extricate or effectively employ weapons systems. As a potential alternative, Innovative Trauma Care (San Antonio, Texas USA) has developed an external soft-tissue hemostatic clamp that could potentially provide effective hemorrhage control without the aforementioned complications and loss of limb function. Thus, this study sought to investigate the effectiveness of blood loss control by an external soft-tissue hemostatic clamp versus a compression tourniquet.Hypothesis:The external soft-tissue hemostatic clamp would be non-inferior at controlling intravascular fluid loss after damage to the femoral and popliteal arteries in a normotensive, coagulopathic, cadaveric lower-extremity flow model using an inert blood analogue, as compared to a compression tourniquet.Methods:Using a fresh cadaveric model with simulated vascular flow, this study sought to compare the effectiveness of the external soft-tissue hemostatic clamp versus the compression tourniquet to control fluid loss in simulated trauma resulting in femoral and posterior tibial artery lacerations using a coagulopathic, normotensive, cadaveric-extremity flow model. A sample of 16 fresh, un-embalmed, human cadaver lower extremities was used in this randomized, balanced two-treatment, two-period, two-sequence, crossover design. Statistical significance of the treatment comparisons was assessed with paired t-tests. Results were expressed as the mean and standard deviation (SD).Results:Mean intravascular fluid loss was increased from simulated arterial wounds with the external soft-tissue hemostatic clamp as compared to the compression tourniquet at the lower leg (119.8mL versus 15.9mL; P <.001) and in the thigh (103.1mL versus 5.2mL; P <.001).Conclusion:In this hemorrhagic, coagulopathic, cadaveric-extremity experimental flow model, the use of the external soft-tissue hemostatic clamp as a hasty hemostatic adjunct was associated with statistically significant greater fluid loss than with the use of the compression tourniquet.Paquette R, Bierle R, Wampler D, Allen P, Cooley C, Ramos R, Michalek J, Gerhardt RT. External soft-tissue hemostatic clamp compared to a compression tourniquet as primary hemorrhage control device in pilot flow model study. Prehosp Disaster Med. 2019;34(2):175–181

Cold Flow Model Study on a Dual Circulating Fluidized Bed (DCFB) System for Chemical Looping Processes

2009 ◽  
Vol 32 (3) ◽  
pp. 418-424 ◽  
Author(s):  
T. Pröll ◽  
K. Rupanovits ◽  
P. Kolbitsch ◽  
J. Bolhàr-Nordenkampf ◽  
H. Hofbauer
Keyword(s):  
Fluidized Bed ◽  
Flow Model ◽  
Circulating Fluidized Bed ◽  
Chemical Looping ◽  
Cold Flow ◽  
Model Study

scholarly journals Using maximal systolic acceleration to diagnose and assess the severity of peripheral artery disease in a flow model study

2020 ◽  
Vol 71 (1) ◽  
pp. 242-249 ◽  
Author(s):  
Jeroen J.W.M. Brouwers ◽  
Louk P. van Doorn ◽  
Rob C. van Wissen ◽  
Hein Putter ◽  
Jaap F. Hamming
Keyword(s):  
Peripheral Artery Disease ◽  
Flow Model ◽  
Peripheral Artery ◽  
Model Study ◽  
Artery Disease
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