The Application of Modern Metallurgical Principles And Knowledge to the Manufacture of Mokumé Gane (Wood-Grain Metal) Decorative Alloy

2004 ◽  
Vol 852 ◽  
Author(s):  
Ian T. Ferguson ◽  
Brian Derby ◽  
G. E. Thompson
Keyword(s):  
Aluminium Alloys ◽  
Success Rates ◽  
Hot Press ◽  
Visual Effects ◽  
Roll Bonding ◽  
Solid State Bonding ◽  
New Type ◽  
Wood Grain ◽  
Further Development ◽  
Over Time

ABSTRACTMokumé Gane layered metal is a 300-year old decorative metal laminate technique peculiar to the isolated culture of the Japanese Shogunate. Like many complex craft practices handed down through individual experience, the manufacture and development of Mokumé Gane has changed minimally over time. The application of contemporary metallurgical knowledge and solid state bonding techniques such as Hot Press Diffusion Bonding and Hot Roll Bonding provide for further development of Mokumé Gane: bonding success rates are improved, and manufacturing times are reduced. In addition, the range of possible metal combinations is substantially increased; 42 different combinations to date have been successfully bonded, including a new type of Mokumé Gane employing aluminium alloys. This research has allowed a very large increase in the variety of colours, patterns, and visual effects, available to contemporary metalsmiths and jewellers.

The Development and Manufacture of Aluminium Mokumé Gane (Wood-Grain Metal) Decorative Alloy

2004 ◽  
Vol 852 ◽  
Author(s):  
Ian T. Ferguson ◽  
Brian Derby ◽  
G.E. Thompson
Keyword(s):  
Solid State ◽  
Aluminium Alloy ◽  
Aluminium Alloys ◽  
Anodic Coating ◽  
Roll Bonding ◽  
Solid State Bonding ◽  
Wide Range ◽  
Wood Grain ◽  
Strong Contrast

ABSTRACTThe application of contemporary metallurgical knowledge and solid state bonding techniques provide for development of entirely new Mokumé Gane combinations. A multi-layered aluminium alloy is manufactured by the successive hot roll-bonding of two different aluminium alloys. The surface is then embossed with a selected pattern and machined back, exposing the various alloys. A range of suitable alloy combinations has been identified. When anodised, the surface presents the pattern as a strong contrast due to the differing anodising properties of the constituent alloy layers. The anodic coating can then be dyed with a wide range of colours to develop the decorative potential of the technique.

scholarly journals Clinical and echocardiographic trends in percutaneous balloon mitral valvuloplasty

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Ofir Koren ◽  
Asaf Israeli ◽  
Ehud Rozner ◽  
Nassem Darawshy ◽  
Yoav Turgeman
Keyword(s):  
Heart Failure ◽  
Medical Center ◽  
Success Rates ◽  
Mitral Valvuloplasty ◽  
Percutaneous Balloon Mitral Valvuloplasty ◽  
Developing Heart ◽  
Percutaneous Balloon ◽  
Study Population ◽  
Procedural Success ◽  
Over Time

Abstract Background The prevalence of Rheumatic Mitral Stenosis (MS) has significantly changed over the last decades. We intend to examine patient demographics, Echocardiographic characteristics, procedural success rates, and complications throughout 30-years. Methods We conducted a single-center descriptive observational study. The study population consists of patients undergone percutaneous balloon mitral valvuloplasty (PBMV) at Emek Medical Center in Israel from January 1990 to May 2019. Results Four hundred seventeen patients underwent PBMV during the study period and were eligible for the study. Age did not change significantly over time (p = 0.09). The prevalence of Male and patients who were smoking and had multiple comorbidities such as hypertension, dyslipidemia, ischemic heart disease, and chronic kidney disease became increases over time (p = 0.02, p = 0.02, p = 0.001, p = 0.01, p = 0.02, and p = 0.001, respectively). Wilkins score and all its components increased over time, and the total score was higher in females (p = 0.01). Seventy-nine (18.9%) patients had complications. The rate of complications did not change over decades. Patients with Wilkins score > 8, post-procedural MR of ≥2, and post-procedural MVA < 1.5 had the highest risk for the need of Mitral valve replacement (MVR) surgery in 2 years following PBMV (3.64, 4.03, 2.44, respectively, CI 95%, p < .0001 for all). The median time in these patients was 630 days compared to 4–5 years in the entire population. Patients with Post-procedural MR of ≥2 and post-procedural MVA < 1.5 had ten times risk for developing heart failure (HR 9.07 and 10.06, respectively, CI 95%, P < .0001). Conclusion Our research reveals trends over time in patients’ characteristics and echocardiographic features. Our study population consists of more male patients with multiple comorbidities and more complex and calcified valvular structures in the last decade. Wilkins score > 8, post-procedural MR of ≥2, and post-procedural MVA < 1.5 cm2 were in-depended predictors for the time for surgery and heart failure hospitalization.

scholarly journals The development of a model for assessing the level of impact of information and library services

2009 ◽  
Vol 29 (93) ◽  
pp. 43-49 ◽  
Author(s):  
Peter Brophy
Keyword(s):  
Library Services ◽  
Community Or ◽  
Further Development ◽  
Over Time

This paper describes the background to the development and application of a model of Levels of Impact of innovations in information and library services. The model is based on earlier work in the eLearning field and provides a tool for comparing the different effects of a service on individuals, either within a particular community or over time. The paper suggests that there is scope for further development and testing of the model to refine its application.

scholarly journals GEOECONOMIC ASPECTS OF THE MONETARY GLOBALIZATION

2020 ◽  
Vol 19 (Vol 19, No 3 (2020)) ◽  
pp. 395-408
Author(s):  
Oleksandr SHAROV
Keyword(s):  
Economic Globalization ◽  
International Level ◽  
Historical Process ◽  
Bretton Woods ◽  
Monetary System ◽  
The World ◽  
Further Development ◽  
Over Time ◽  
Qualitative Changes

Author defines monetary globalization and examines the historical process of spreading money and cash nexus across the globe. It is stated that money developed almost simultaneously in three great civilizations (Europe, India, China), but over time the Hellenistic form of money absorbed and universalized all other forms of money. The author examines in detail the process of distribution of metallic and then credit form of money and their impact on economic globalization. All these processes occurring both in the markets of separate countries or small regions and at the international level (where money started to act as global currency almost immediately after its appearance) constitute the essence of the monetary globalization. The author dwells on the post-Bretton Woods period of development of the World Monetary System, believing that the extensive phase of monetary globalization has come to an end at this stage and its further development will be caused by fundamental qualitative changes.

scholarly journals THE HOUSING POLICY AT THE MODERN TIME IN THE TOWN OF ORENBURG

2013 ◽  
Vol 3 (4) ◽  
pp. 11-18
Author(s):  
E. I KORNILOVA
Keyword(s):  
Housing Policy ◽  
Modern Time ◽  
Main Attention ◽  
New Type ◽  
Further Development ◽  
The Town

This article raises questions about development housing in planning structure in the town of Orenburg. The author talks about the development housing since founding of the town of Orenburg and identifies the main historical stages and living buildings. The main attention is on the development housing at the modern time. For the most part it is new type of housing for example multi-storey residential complex, townhouse, individual dwelling. On the basis of the analysis, that was made the author gives some recommendations for the further development of the housing policy of Orenburg.

Djalkiri

2021 ◽  
Keyword(s):  
20Th Century ◽  
Early 20Th Century ◽  
Philosophical Foundations ◽  
Collaborative Community ◽  
Arnhem Land ◽  
New Type ◽  
The University ◽  
The Relationship ◽  
Over Time

Djalkiri are “footprints" – ancestral imprints on the landscape that provide the Yolŋu people of eastern Arnhem Land with their philosophical foundations. This book describes how Yolŋu artists and communities keep these foundations strong, and how they have worked with museums to develop a collaborative, community-led approach to the collection and display of their artwork. It includes contributions from Yolŋu elders and artists as well as Indigenous and non-Indigenous historians and curators. Together they explore how the relationship between communities and museums has changed over time. From the early 20th century, anthropologists and other collectors acquired artworks and objects and took photographs in Arnhem Land that became part of collections at the University of Sydney. Later generations of Yolŋu have sought out these materials and, with museum curators, proposed a new type of relationship, based on a deeper respect for Yolŋu intellectual frameworks and a commitment to their central role in curation. This book tells some of their stories.

Peaceful Revolutions in Algeria and Sudan: the Factor of the Coronavirus Pandemic

2021 ◽  
pp. 37-46
Author(s):  
Nailia Fakhrutdinova
Keyword(s):  
Driving Forces ◽  
Arab Countries ◽  
African Studies ◽  
Long Period ◽  
First Time ◽  
Further Development ◽  
Over Time

The article deals with the problem of the post Arabic spring situation. Only three Arab countries remained unchanged in Africa: Morocco, Algeria and Sudan. After a long period of time their protesters remained outside the zone of active action, but over time they appeared in the streets again. The circumstances forced people to take to the streets. Moroccans were in a better situation, but gradually the population of Algeria and Sudan where the situation was especially serious began to criticize the policy of the authorities, although they did it exclusively peacefully. For the first time in Russian African studies, the author assesses all the driving forces of the events at the end of 2020 and early 2021 and, emphasizing the complications brought by the coronavirus pandemic, makes an analytical forecast for the further development of the situation.

The Impact of Project Management Methodologies on Project Success

2019 ◽  
pp. 418-437
Author(s):  
Hazem Abdulla ◽  
Mukhtar Alhashimi ◽  
Allam Mohammed Hamdan
Keyword(s):  
Project Management ◽  
Oil And Gas ◽  
Project Success ◽  
Qualitative Interviews ◽  
Oil And Gas Industry ◽  
Success Rates ◽  
Gas Industry ◽  
Survey Responses ◽  
The Impact ◽  
Over Time

This study assessed the impact of project management methodologies (PMMs) on project success in the oil and gas industry in the Kingdom of Bahrain. It also explored the different project methodologies used along with their strengths and weaknesses. Quantitative approach with the support of qualitative interviews was used to achieve the objectives of this research. A total of 95 survey responses were received and 17 interviews were conducted. Projects in the oil and gas industry are more about safety than speed, and hence, the use of comprehensive methodologies and applying the relevant methodology elements are important for oil and gas projects. Furthermore, the companies in the oil and gas industry in Bahrain have to pay more attention to their project management methodologies and get it evolved and improved over time to achieve higher project success rates.

Introduction

2021 ◽  
pp. 1-18
Author(s):  
Charles Devellennes
Keyword(s):  
News Media ◽  
State Violence ◽  
The Political ◽  
Political Leaders ◽  
The Social ◽  
Fundamental Challenge ◽  
New Type ◽  
The Right ◽  
Over Time

This chapter gives introduces the gilet jaunes. The gilets jaunes, a group of French protesters named after their iconic yellow vests donned during demonstrations, have formed a new type of social movement. The gilets jaunes have been variously interpreted since they began their occupation of French roundabouts. They were at first received with enthusiasm on the right of the French political establishment, and with caution on the left. The fourth weekend saw scenes of violence erupt on the Champs Élysées, notably around and within the Arc de Triomphe, which towers over the first roundabout built in France. The headlines of newspapers and stories of the news media became almost exclusively focused on the violence of the protests. Images of state violence became ever-present on Twitter and independent media outlets, making it clear that it was the use of disproportionate force by police units that was at the centre of the events. The chapter explains that the aim of the book is to show that the use of violence is not the only tale to be told about the role of the protesters in the contemporary French context. Their contribution to the political landscape of France is quite different. They have provided a fundamental challenge to the social contract in France, the implicit pact between the governed and their political leaders. The movement has seen the numbers of participants diminish over time, but the underlying tension between the haves and the have-nots, the winners of globalization and those at risk of déclassement [social downgrading], are enduring and persistent.

On the Dynamic Mechanism of Developing Recycling Economy for Enterprises in China

2010 ◽  
Vol 1 (1) ◽  
pp. 20-29
Author(s):  
Huiqiang Cheng ◽  
Xiang-Yun Du
Keyword(s):  
Economic Behavior ◽  
The Public ◽  
Behavior Development ◽  
Recycling Economy ◽  
New Type ◽  
The Government ◽  
Economic Growth Mode ◽  
Further Development ◽  
Government Promotion ◽  
Sticking Point

Recycling economy, as a new type of development model and economic growth mode, will form a social resultant force in government promotion, enterprise entities and public participation. Thus, it is quite necessary to discuss on the economic behavior, development restriction and profit motive of the Government, enterprises and the public as the micro-economic entities. Especially in the process of current recycling economic development of China, the sticking point for further development and achievement of Chinese recycling economy lies so much on how to enhance the intrinsic dynamics of the enterprises for developing the recycling economy.

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