Bragg Reflection Breakwater: A New Shore Protection Method?

1991 ◽  
Author(s):  
James A. Bailard ◽  
Jack DeVries ◽  
James T. Kirby ◽  
Robert T. Guza
Keyword(s):  
Bragg Reflection ◽  
Shore Protection ◽  
Protection Method

CAD Of Anticorrosive Protection Of Steel Structures

2019 ◽  
pp. 18-23
Keyword(s):  
Protective Coating ◽  
Computer Aided Design ◽  
Steel Structures ◽  
Cost Effective ◽  
Operating Conditions ◽  
Computational Tool ◽  
Protection Method ◽  
Cost Effective Method ◽  
The Cost ◽  
Aided Design

The choice of cost-effective method of anticorrosive protection of steel structures is an urgent and time consuming task, considering the significant number of protection ways, differing from each other in the complex of technological, physical, chemical and economic characteristics. To reduce the complexity of solving this problem, the author proposes a computational tool that can be considered as a subsystem of computer-aided design and used at the stage of variant and detailed design of steel structures. As a criterion of the effectiveness of the anti-corrosion protection method, the cost of the protective coating during the service life is accepted. The analysis of existing methods of steel protection against corrosion is performed, the possibility of their use for the protection of the most common steel structures is established, as well as the estimated period of effective operation of the coating. The developed computational tool makes it possible to choose the best method of protection of steel structures against corrosion, taking into account the operating conditions of the protected structure and the possibility of using a protective coating.

Powder Transport by Surface Acoustic Wave Actuator using Bragg Reflection

2014 ◽  
Vol 134 (12) ◽  
pp. 1934-1935
Author(s):  
Tsunemasa Saiki ◽  
Yuya Matsui ◽  
Yasuto Arisue ◽  
Yuichi Utsumi ◽  
Akinobu Yamaguchi
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Bragg Reflection

Applying a Significant Protection Layer on Double Ex Situ Lift-out TEM Specimens to Protect Against Ion Beam Impact

2019 ◽  
Author(s):  
Chun-Hung Lin ◽  
Hsin-Cheng Hsu ◽  
Tsung-Yi Lin ◽  
Ru-Hui Lin ◽  
I-An Chen ◽  
...  
Keyword(s):  
Ion Beam ◽  
Ex Situ ◽  
Preliminary Treatment ◽  
Significant Protection ◽  
Damage Layer ◽  
Protection Method ◽  
Protection Layer ◽  
Tem Lamella ◽  
Beam Damage

Abstract Protection layers on double ex situ lift-out TEM specimens were investigate in this paper and two protection layer approaches for double INLO or double EXLO were introduced. The improved protection methods greatly decreased the damage layer on the top surface from 90 nm to 5 nm (or lower) during FIB milling. According to the property of different sample and its preliminary treatment in the FIB, we have the satisfactory approaches to be applied. Using this improved protection method, we demonstrate the structures within the TEM lamella can be observed without ion beam damage/implantation during FIB

INFORMATION-PREDICTION AUTOMATIC SYSTEM FOR THE SEA SHORE OF KALININGRAD OBLAST (IPAS): USE IN 2006-2015 AND DEVELOPMENT PROSPECTS

2017 ◽  
Author(s):  
Evgenii Burnashov ◽  
Evgenii Burnashov ◽  
Konstantin Makarov ◽  
Konstantin Makarov ◽  
Boris Chubarenko ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Automatic System ◽  
Shore Protection ◽  
The Baltic Sea ◽  
Kaliningrad Oblast ◽  
Project Construction ◽  
The Government ◽  
The Baltic ◽  
State Organization ◽  
Protection Engineering

Information-Prediction Automatic System (IPAS) was developed for the Baltic Sea shore within the Kaliningrad District in 2005-2006 years and implemented in the State Organization of the Kaliningrad District "Baltberegozaschita" (coastal management authority) in 2007. It is used as database for shore protection engineering and a tool for analyses and forecasting of coastal processes, and has three blocks - database, forecast block and information-cartographic block. Information-cartographic block regularly accumulates the results of annual monitoring - surveys on shore segments with returning period of 6-7 years using reference system of permanent monitoring bench marks each 500 meters on the Vistula Spit, shore of Sambiya Peninsula and the Curonian Spit. IPAS is regularly used for processing and analysis of data, preparation of analytical notes for the Government of Kaliningrad Oblast and for municipal authorities. Information stored in IPAS was used for development of two programs of actions: "Protection of the shore of the Baltic Sea, the Vistula and Curonian lagoons within the Kaliningrad Oblast for the period 2014-2020 years" and "The concept of integrated development of shore protection in the Kaliningrad Oblast for the period 2013-2020 years". Optimal engineering solutions were recommended by using of the forecast block of IPAS for promenade protection constructions in Zelenogradsk and Svetlogorsk as well as for the project "Construction of beach protection in Svetlogorsk".

CONDITIONS FAVOURABLE FOR PROTECTION THE MARINE SHORE OF THE VISTULA SPIT AND SAMBIAN PENINSULA (THE BATIC SEA, KALININGRAD OBLAST) BY OFFSHORE DISPOSAL OF DREDGED MATERIAL

2017 ◽  
Author(s):  
Andrei Sokolov ◽  
Andrei Sokolov ◽  
Boris Chubarenko ◽  
Boris Chubarenko
Keyword(s):  
Dredged Material ◽  
Vistula Lagoon ◽  
Shore Protection ◽  
The South ◽  
The Third ◽  
Dumping Site ◽  
The North ◽  
Kaliningrad Oblast ◽  
Wind Actions ◽  
The Vistula Lagoon

Three dumping sites located at the south-eastern part of the Baltic Sea (Kaliningrad Oblast) at shallow depths are considered. The first one is located to the south of the Vistula Lagoon inlet in front of a permanently eroded open marine shore segment. The second one is located to the north of the Vistula Lagoon inlet, and is used now for disposing of dredged material extracted from the Kaliningrad Seaway Canal. The third dumping site is located near the northern shore of the Sambian Peninsula to the east of the Cape Gvardeijski and assigned for disposing the dredged material extracted from the fairway to the Pionerskij Port located nearby. The last site is planned to be used for disposing of dredged material from the future port that should be constructed there before the beginning of the FIFA World Cup 2018. All three dumping sites are located not far from the eroded segments of the shore. The question behind the study is: would it possible that disposed material will naturally transported from the damping site to the shore and accumulate there to protect it from erosion? A numerical hydrodynamic-transport 3D model (MIKE) was used to model sediment transport under different wind actions. The winds with the speed stronger than 15 m/s complete wash out disposed material from the dumping site and spreading it over the wide area with a negligible layer thickness. Winds of about 7-10 m/s transport material along the shore at a distance of few kilometers that may be useful for shore protection. The first location of the dumping site (to the south of the Vistula Lagoon inlet) looks very ineffective for potential protection the shore nearby. At the other hand, the second and especially the third locations are favorable for transport of disposed material to the shore, the most favorable conditions are at onshore or alongshore currents.

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.

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