12,617 research outputs found
Wetting of real surfaces De Gruyter studies in mathematical physics ;, 19./ Edward Yu. Bormashenko.
No full textIn English.Includes bibliographical references and index.The revealing of the phenomenon of superhydrophobicity (the "lotus-effect") has stimulated an interest in wetting of real (rough and chemically heterogeneous) surfaces. In spite of the fact that wetting has been exposed to intensive research for more than 200 years, there still is a broad field open for theoretical and experimental research, including recently revealed superhydrophobic, superoleophobic and superhydrophilic surfaces, so-called liquid marbles, wetting transitions, etc. This book integrates all these aspects within a general framework of wetting of real surfaces, where physical and chemical heterogeneity is essential. Wetting of rough/heterogeneous surfaces is discussed through the use of the variational approach developed recently by the author. It allows natural and elegant grounding of main equations describing wetting of solid surfaces, i.e. Young, Wenzel and Cassie-Baxter equations. The problems of superhydrophobicity, wetting transitions and contact angle hysteresis are discussed in much detail, in view of novel models and new experimental data. The second edition surveys the last achievements in the field of wetting of real surfaces, including new chapters devoted to the wetting of lubricated and gradient surfaces and reactive wetting, which have seen the rapid progress in the last decade. Additional reading, surveying the progress across the entire field of wetting of real surfaces, is suggested to the reader. Contents What is surface tension? Wetting of ideal surfaces Contact angle hysteresis Dynamics of wetting Wetting of rough and chemically heterogeneous surfaces: the Wenzel and Cassie Models Superhydrophobicity, superhydrophilicity, and the rose petal effect Wetting transitions on rough surfaces Electrowetting and wetting in the presence of external fieldsNonstick droplets Wetting of lubricated surfaces.Frontmatter -- Preface to the second edition -- Preface to the first edition -- Symbol Index -- Contents -- 1. What is surface tension? -- 2. Wetting of ideal surfaces -- 3. Contact angle hysteresis -- 4. Dynamics of wetting -- 5. Wetting of rough and chemically heterogeneous surfaces: the Wenzel and Cassie Models -- 6. Superhydrophobicity, superhydrophilicity, and the rose petal effect -- 7. Wetting transitions on rough surfaces -- 8. Electrowetting and wetting in the presence of external fields -- 9. Nonstick droplets -- 10. Wetting of lubricated surfaces -- 11. Reactive wetting -- Index1 online resourc
Physics of wetting: phenomena and applications of fluids on surfaces De Gruyter graduate./ Edward Yu. Bormashenko.
No full textIn English.Includes bibliographical references and idnex.Motivated by a plethora of phenomena from nature, this textbook introduces into the physics of wetting of surfaces. After a brief discussion of the foundations of surface tension, its implementation for floating objects, capillary waves, bouncing droplets, walking of water striders, etc. is discussed. Furthermore, Marangoni flows, surface tension inspired instabilities, condensation and evaporation of droplets, liquid marbles, superhydrophobicity and superoleophobicity (lotus effect) are introduced. All relevant concepts are illustrated by the numerous qualitative and quantitative exercises. ContentsWhat is surface tension?Wetting of surfaces: the contact angleSurface tension-assisted floating of heavy and light objects and walking of water stridersCapillary interactions between particles. Particles placed on liquid surfaces. Elasticity of liquid surfaces, covered by colloidal particlesCapillary wavesOscillation of dropletsMarangoni flow and surface instabilitiesEvaporation of droplets. The Kelvin and the coffee-stain effectsCondensation, growth and coalescence of droplets and the breath-figure self-assemblyDynamics of wetting: bouncing, spreading and rolling of droplets (water hammer effect - water entry and drag-out problems)Superhydrophobicity and superoleophobicity: the Wenzel and Cassie wetting regimesThe Leidenfrost effect. Liquid marbles: self-propulsionPhysics, geometry, life and death of soap films and bubbles.Preface; Contents; Symbol index; 1. What is surface tension?; 2. Wetting of surfaces: the contact angle; 3. Surface tension-assisted floating of heavy and light objects and walking of water striders; 4. Capillary interactions between particles. Particles placed on liquid surfaces. Elasticity of liquid surfaces, covered by colloidal particles; 5. Capillary waves; 6. Oscillation of droplets; 7. Marangoni flow and surface instabilities; 8. Evaporation of droplets. The Kelvin and the coffee-stain effects; 9. Condensation, growth and coalescence of droplets and the breath-figure self-assembly10. Dynamics of wetting: bouncing, spreading and rolling of droplets (water hammer effect -- water entry and drag-out problems)11. Superhydrophobicity and superoleophobicity: the Wenzel and Cassie wetting regimes; 12. The Leidenfrost effect. Liquid marbles: self-propulsion; 13. Physics, geometry, life and death of soap films and bubbles; Index1 online resource (xxii, 232 pages)
New Ireland: the Irish on Prince Edward Island
No full textAdapted from the text of New Ireland : The Irish on prince Edward Island, an exhibition produced by the Prince Edward Island Museum & Heritage Foundation. Text by Edward MacDonald.Source type: Print(0
Physics of solid–liquid interfaces: from the Young equation to the superhydrophobicity (Review Article)
No full textThe state-of-art in the field of physics of phenomena occurring at solid/liquid interfaces is presented. The notions of modern physics of wetting are introduced and discussed including: the contact angle hysteresis, disjoining pressure and wetting transitions. The physics of low temperature wetting phenomena is treated. The general variational approach to interfacial problems, based on the application of the transversality conditions to variational problems with free endpoints is presented. It is demonstrated that main equations, predicting contact angles, namely the Young, Wenzel, and Cassie–Baxter equations arise from imposing the transversality conditions on the appropriate variational problem of wetting. Recently discovered effects such as superhydrophobicity, the rose petal effect and the molecular dynamic of capillarity are reviewed.The author is indebted to Dr. Whyman for his
longstanding fruitful cooperation in the study of wetting
phenomena. His critique and numerous remarks definitely
improved the text. I am thankful to Professor R. Pogreb for
his contribution in understanding of diversity of wetting
phenomena. I want to thank my numerous MSc and PhD
students for their research activity and allegiance to a spirit
of scientific research. I am grateful to Mrs. Al. Musin for
her kind help in editing the review. I am especially indebted
to my wife Yelena Bormashenko for her inestimable
help in preparing this review. I am greatly thankful to Mrs.
Hanna Weiss for her valuable help in English editing of
this review
Ties that Bind: the repeal movement on 19th century Prince Edward Island
No full textThe article discusses the involvement of residents of Prince Edward Island in the Irish Repeal Movement, which sought to repeal the Act of Union of 1800 between Great Britain and Ireland, focusing on the years 1843 and 1844. It comments on the Loyal National Repeal Association, led by Irish political leader Daniel O'Connell. The author examines immigration to Prince Edward Island from the British Isles, the involvement of various groups in the movement including clergy, women, and non-Irish people, and leaders of the movement within Prince Edward Island, including newspaper editor Edward Whelan
Physics of solid–liquid interfaces: from the Young equation to the superhydrophobicity (Review Article)
No full textThe state-of-art in the field of physics of phenomena occurring at solid/liquid interfaces is presented. The notions of modern physics of wetting are introduced and discussed including: the contact angle hysteresis, disjoining pressure and wetting transitions. The physics of low temperature wetting phenomena is treated. The general variational approach to interfacial problems, based on the application of the transversality conditions to variational problems with free endpoints is presented. It is demonstrated that main equations, predicting contact angles, namely the Young, Wenzel, and Cassie–Baxter equations arise from imposing the transversality conditions on the appropriate variational problem of wetting. Recently discovered effects such as superhydrophobicity, the rose petal effect and the molecular dynamic of capillarity are reviewed.The author is indebted to Dr. Whyman for his
longstanding fruitful cooperation in the study of wetting
phenomena. His critique and numerous remarks definitely
improved the text. I am thankful to Professor R. Pogreb for
his contribution in understanding of diversity of wetting
phenomena. I want to thank my numerous MSc and PhD
students for their research activity and allegiance to a spirit
of scientific research. I am grateful to Mrs. Al. Musin for
her kind help in editing the review. I am especially indebted
to my wife Yelena Bormashenko for her inestimable
help in preparing this review. I am greatly thankful to Mrs.
Hanna Weiss for her valuable help in English editing of
this review
Physics of solid–liquid interfaces: from the Young equation to the superhydrophobicity (Review Article)
No full textThe state-of-art in the field of physics of phenomena occurring at solid/liquid interfaces is presented. The notions of modern physics of wetting are introduced and discussed including: the contact angle hysteresis, disjoining pressure and wetting transitions. The physics of low temperature wetting phenomena is treated. The general variational approach to interfacial problems, based on the application of the transversality conditions to variational problems with free endpoints is presented. It is demonstrated that main equations, predicting contact angles, namely the Young, Wenzel, and Cassie–Baxter equations arise from imposing the transversality conditions on the appropriate variational problem of wetting. Recently discovered effects such as superhydrophobicity, the rose petal effect and the molecular dynamic of capillarity are reviewed.The author is indebted to Dr. Whyman for his
longstanding fruitful cooperation in the study of wetting
phenomena. His critique and numerous remarks definitely
improved the text. I am thankful to Professor R. Pogreb for
his contribution in understanding of diversity of wetting
phenomena. I want to thank my numerous MSc and PhD
students for their research activity and allegiance to a spirit
of scientific research. I am grateful to Mrs. Al. Musin for
her kind help in editing the review. I am especially indebted
to my wife Yelena Bormashenko for her inestimable
help in preparing this review. I am greatly thankful to Mrs.
Hanna Weiss for her valuable help in English editing of
this review
Dr. Edward P. Wimberly, ITC, July 2011
No full textThis video is a conversation with Dr. Edward P. Wimberly. Dr. Wimberly talks about his book, "No Shame in Wesley's Gospel: A Twenty-First Century Pastoral Gospel". Brad Ost, AUC Woodruff Library, is the interviewer
The Author of Waverley
No full textMedium: engravingprintssigned and dated."The Author of Waverley" [2017.0032.000.000], Goodall, Edward, Allan, WilliamArtist and Role: Goodall, Edward,Artist and Role: Allan, William, ArtistExtent: shee
The Environmental Pre-History of Prince Edward Island 1769--1970: A Reconnaissance in Force
No full textAcademic analysis of the historical interaction between humans and the environment has been extremely limited on Prince Edward Island. The following thesis is one of the first studies to utilize Island Studies research methodologies to examine Prince Edward Island as a case study in environmental history. Prince Edward Island's "islandness" plays a significant factor in this history because any environmental changes are amplified by the compression of the limited geographical area of the Island.The main question revolves around how Islanders' attitudes have evolved toward the environment. Before a conscious environmental movement began in the 1970s, Islanders have had concerns over the environment. These early concerns over the environment generally revolved around conserving natural resources that had economic value as opposed to preserving the environment for the sake of nature. However, there were some surprising examples of individuals who were ahead of their time as far as understanding the importance of preserving the environment. Thus, if such awareness toward environmental issues did not emerge in an organized way until the 1970s, this thesis examines changing attitudes over time, to create a "pre-history" of environmental concerns.The thesis is organized chronologically and thematically. The introduction describes the research method, environmental history historiography, the importance of conservation law in environmental history, Island Studies research methods, and the idea of garden and Eden mythologies effecting legislation on islands. Chapter One reviews the impact of the Aboriginal and French impact to the environment, because their limited footprint justifies why the study focuses on the British Colonial and post-Confederation periods. Chapter Two outlines the impact that the British settlement era had on the Island's environment. Chapter Three covers changing environmental attitudes from the post-Confederation period to the Second World War. The final chapter covers postwar environmental impacts until the watershed of the Comprehensive Development Plan in 1970.The thesis examines the evolution of attitudes toward the environment on Prince Edward Island through one major research method: the provincial government's legislative records. The Journals of the Legislative Assembly provided the bulk of the research material because they contain records of the legislation and government reports. Researching environmental related legislation is often the most fundamental research method in environmental history because it can be used to illustrate when and why humans became concerned for regulating and protecting the environment.This thesis adds to the historiography of Prince Edward Island by expanding environmental history scholarship. Aside from geographies, natural history articles, forestry research, and works by Alan MacEachern focusing on National Parks and the Institute of Man and Resources, environmental history has been limited on Prince Edward Island. However, Prince Edward Island has a long history of trying to protect the environment, which was accelerated by "islandness" and limited geographical area. It is hoped that this thesis will add historical perspective to policy makers working on sustainable development in the future.Source: Masters Abstracts International, Volume: 50-04, page: 2155
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