scholarly journals HOMOGENEOUS LOW-CRESTED STRUCTURES FOR BEACH PROTECTION IN CORAL REEF AREAS

2020 ◽  
pp. 59
Author(s):  
Josep R. Medina ◽  
M. Esther Gomez-Martin ◽  
Patricia Mares-Nasarre ◽  
Mireille Escudero ◽  
Itxaso Oderiz ◽  
...  
Keyword(s):  
Numerical Model ◽  
Green Infrastructure ◽  
Placement Tests ◽  
Gaming Industry ◽  
Sea Bottom ◽  
The World ◽  
Cast Concrete ◽  
Structure Height ◽  
Horizontal Bottom ◽  
Body Method

In many countries, the health of the marine ecosystems and the sun-sand-sea tourism depend on the coral reefs, which have been retreating around the world during the last decades. Homogeneous Low-Crested Structures (HLCS), made of large rocks or pre-cast concrete units, can be placed to mimic the functions of beach protection and eventually serve as a refuge for species. HLCS is a type of multi-purpose green infrastructure which is functionally similar to conventional low-crested structures but have higher porosity and are more easily dismantled for re-use. Contrary to conventional low-crested structures, the functionality of HLCS protecting beaches depends on the selected placement grid; this paper describes physical and numerical placement tests on horizontal bottom used to characterize the layers coefficients of Cubipod HLCS. The Bullet Physic Engine (BPE) numerical model used in the gaming industry, which is based on the rigid body method, is calibrated using the physical placement tests. The layer coefficients of Cubipod HLCS measured in the physical placement tests were similar to those obtained with the BPE numerical model, which could be used to optimize placement grids of HLCS on specific sea bottom conditions. Finally, the influence of the placement grid of Cubipod HLCS on the structure height, crest freeboard and wave transmission is analyzed.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/5bi-jpuJYcQ

Toward A Framework for Assessing the Fair Distribution of Space in Urban Streets

2021 ◽  
pp. 036119812199519
Author(s):  
Gabriel Lefebvre-Ropars ◽  
Catherine Morency ◽  
Paula Negron-Poblete
Keyword(s):  
Green Infrastructure ◽  
Supply And Demand ◽  
Active Transportation ◽  
Three Dimensions ◽  
Urban Context ◽  
Urban Streets ◽  
Street Space ◽  
The World ◽  
Fair Distribution ◽  
The City

The increasing popularity of street redesigns highlights the intense competition for street space between their different users. More and more cities around the world mention in their planning documents their intention to rebalance streets in favor of active transportation, transit, and green infrastructure. However, few efforts have managed to formalize quantifiable measurements of the balance between the different users and usages of the street. This paper proposes a method to assess the balance between the three fundamental dimensions of the street—the link, the place, and the environment—as well as a method to assess the adequation between supply and demand for the link dimension at the corridor level. A series of open and government georeferenced datasets were integrated to determine the detailed allocation of street space for 11 boroughs of the city of Montréal, Canada. Travel survey data from the 2013 Origine-Destination survey was used to model different demand profiles on these streets. The three dimensions of the street were found to be most unbalanced in the central boroughs of the city, which are also the most dense and touristic neighborhoods. A discrepancy between supply and demand for transit users and cyclists was also observed across the study area. This highlights the potential of using a distributive justice framework to approach the question of the fair distribution of street space in an urban context.

scholarly journals On the tides and resonances of Hudson Bay and Hudson Strait

Ocean Science ◽  
2014 ◽  
Vol 10 (3) ◽  
pp. 411-426 ◽  
Author(s):  
D. J. Webb
Keyword(s):  
Numerical Model ◽  
Shallow Water ◽  
World Ocean ◽  
Tidal Energy ◽  
Tidal Range ◽  
Hudson Bay ◽  
Foxe Basin ◽  
Important Region ◽  
The World ◽  
Diurnal Tides

Abstract. The resonances of Hudson Bay, Foxe Basin and Hudson Strait are investigated using a linear shallow water numerical model. The region is of particular interest because it is the most important region of the world ocean for dissipating tidal energy. The model shows that the semi-diurnal tides of the region are dominated by four nearby overlapping resonances. It shows that these not only affect Ungava Bay, a region of extreme tidal range, but they also extend far into Foxe Basin and Hudson Bay and appear to be affected by the geometry of those regions. The results also indicate that it is the four resonances acting together which make the region such an important area for dissipating tidal energy.

scholarly journals Green infrastructure in high-rise residential development on steep slopes in city of Vladivostok

2018 ◽  
Vol 33 ◽  
pp. 01004 ◽  
Author(s):  
Alla Kopeva ◽  
Olga Ivanova ◽  
Olga Khrapko
Keyword(s):  
Urban Design ◽  
Green Infrastructure ◽  
Green Roofs ◽  
Residential Development ◽  
The Sustainable Development ◽  
High Rise ◽  
The World ◽  
Green Walls ◽  
Steep Slopes ◽  
The City

The purpose of this study is to identify the facilities of green infrastructure that are able to improve living conditions in an urban environment in high-rise residential apartments buildings on steep slopes in the city of Vladivostok. Based on the analysis of theoretical sources and practices that can be observed in the world, green infrastructure facilities have been identified. These facilities meet the criteria of the sustainable development concept, and can be used in the city of Vladivostok. They include green roofs, green walls, and greening of disturbed slopes. All the existing high-rise apartments buildings situated on steep slopes in the city of Vladivostok, have been studied. It is concluded that green infrastructure is necessary to be used in new projects connected with designing and constructing of residential apartments buildings on steep slopes, as well as when upgrading the projects that have already been implemented. That will help to regulate the ecological characteristics of the sites. The results of the research can become a basis for increasing the sustainability of the habitat, and will facilitate the adoption of decisions in the field of urban design and planning.

Green IoT (G-IoT) Ecosystem for Smart Cities

2021 ◽  
pp. 1-37
Author(s):  
Vasaki Ponnusamy ◽  
Bobby Sharma ◽  
Waqas Nadeem ◽  
Goh Hock Guan ◽  
N. Z. Jhanjhi
Keyword(s):  
Internet Of Things ◽  
Mobile Phones ◽  
Green Infrastructure ◽  
Industry 4.0 ◽  
Smart Cities ◽  
Green Energy ◽  
The Internet ◽  
Food Packages ◽  
The World ◽  
Conceptual Study

We are in the era of Industry 4.0 with the world going towards everything, everywhere, and anytime with “things” being enablers of technology. Our world is becoming smarter with everything (mobile phones, cars, TVs) connected to each, having unique addresses and communication mechanisms. It is foreseen that by 2025 every little thing, like pen, paper, food packages, etc., would be operated over the internet by internet of things (IoT) towards a smarter world. However, in order to enable the smart world to be sustainable, IoT should be embarking into energy efficient (green) paradigms. Since IoT is also a key enabler for smart cities, a green-aware design of smart cities could see a potential to create a green IoT ecosystem for smart cities. This ecosystem would comprise the green IoT lifecycle, the six pillars of smart cities, and focusing on the green infrastructure, green applications, and green energy. This conceptual study would motivate researchers embarking into smart city projects and keeping green concepts intact in their design and implementations.

Rethinking the Business Strategy in the Gaming Industry in India: The Case of Virtual Infocom

2018 ◽  
Vol 7 (3) ◽  
pp. 176-183
Author(s):  
Subrata Chattopadhyay ◽  
Subhajit Bhattacharya ◽  
Arijit Bhattacharya
Keyword(s):  
Competitive Advantage ◽  
Business Strategy ◽  
Sustainable Competitive Advantage ◽  
Gaming Industry ◽  
Market Strategy ◽  
Start Up ◽  
The World ◽  
Global Player ◽  
Training Institute

The case is about rethinking the business strategy in the gaming industry in India vis-à-vis the world. It discusses the start-up Virtual Infocom (Virtual Information & Communications) and how over the years it has grown into a formidable local and global player. The case is about revamping market strategy and the attributes therein, the prospects and the potential, and envisages to explore as to how the company should, if so, alter their business strategy to be a top brand reckoning in the industry. Virtual Infocom, primarily a training institute, is considering whether to develop games for the market instead of being a secondary player. It unravels the dilemma as to whether it should continue with training or diversify to earn revenues globally to ensure a sustainable competitive advantage in the gaming industry.

The First Danish Deep-Sea Expedition on the Ingolf: 1895 and 1896

2008 ◽  
Vol 27 (2) ◽  
pp. 164-187 ◽  
Author(s):  
Torben Wolff
Keyword(s):  
Deep Sea ◽  
The Arctic ◽  
Parasitic Copepods ◽  
Far North ◽  
The North ◽  
Denmark Strait ◽  
Sea Bottom ◽  
The World ◽  
First Time ◽  
Deep Sea Fauna

The Danish Ingolf Expedition took place in the summer months of 1895 and 1896, with C. F. Wandel as captain, a man with long experience in hydrographical work in the Arctic. The other scientific participants were the zoologists H. Jungersen, W. Lundbeck and H. J. Hansen during the 1895 cruise; C. Wesenberg-Lund replaced Hansen during the 1896 cruise. C. H. Ostenfeld was the botanist and M. Knudsen the hydrographer. The Ingolf (see Figure 1) was a naval cruiser. In both years the voyages were hindered by ice that had moved much further south than normal, even closing most of the Denmark Strait. In 1895, the best results were obtained south of Iceland and in the Davis Strait; in 1896 south and east of Iceland and as far north as Jan Mayen Island. A total of 144 stations were completed, all with soundings, trawlings and (for the first time) continuous hydrographical work associated with the deep-sea trawling (bottom measurements of temperature, salinity, chlorine contents and specific gravity). Eighty of the stations were deeper than 1,000 m. There were more than 800 hydrographical measurements, with about 3,300 registrations recordings added on the basis of the measurements. 138 gas analyses were performed on board with samples from the surface and the sea bottom. The main result of the expedition was the final demonstration of probably the most important threshold boundaries in the world: the Wyville Thompson Ridge from East Greenland to Scotland with maximum depths of 600 m, separating the fauna in the Norwegian and Polar Sea to the north, always with negative below-zero temperatures except close to the Norwegian coast, from the fundamentally different general Atlantic deep-sea fauna to the south of the ridge with positive temperatures. The results are published in the Ingolf Report, with fifteen volumes containing forty-three papers by nineteen Danish authors and fourteen papers by six foreign authors. The sieving technique was excellent—due to an apparatus designed by H. J. Hansen that kept the animals under water until preservation and using the finest silk for sieving. In this way, the expedition collected more smaller animals than had been acquired by previous deep-sea expeditions. Hansen's studies of the peracarid crustaceans and parasitic copepods and Lundbeck's report on the sponges were particularly noteworthy. The 130 photographs taken on board and on land by the ship's doctor William Thulstrup represent a cultural/historical treasure.

scholarly journals Constructed Technosols are key to the sustainable development of urban green infrastructure

2019 ◽  
Author(s):  
Maha Deeb ◽  
Peter M. Groffman ◽  
Manuel Blouin ◽  
Sara Perl Egendorf ◽  
Alan Vergnes ◽  
...  
Keyword(s):  
Green Infrastructure ◽  
Stormwater Management ◽  
Biological Activities ◽  
Urban Spaces ◽  
Soil Functions ◽  
Ecological Functions ◽  
The Sustainable Development ◽  
Composition And Structure ◽  
The World ◽  
By Products

Abstract. With the rise in urban population comes a demand for solutions to offset environmental problems caused by urbanization. Green infrastructure (GI) refers to engineered features that provide multi-ecological functions in urban spaces. Soils are a fundamental component of GI, playing key roles in supporting plant growth, infiltration, and biological activities that contribute to maintenance of air and water quality. However, urban soils are often physically, chemically or biologically unsuitable for use in GI features. Constructed Technosols (CT), consisting of mixtures of organic and mineral waste, are man-made soils designed to meet specific requirements and have great potential for use in GI. This review covers (1) current methods to create CT adapted for various GI designs and (2) published examples where CT have been used in GI. We address the main steps for building CT, the materials and which formulae that should be used to design functional CT, and the technical constraints to using CT for applications in parks, streetside trees, stormwater management, urban farming, and abandoned land. The analysis suggests that the composition and structure of CT should and can be adapted to available wastes and by-products and to future land use and environmental conditions. CT have a high potential to provide multiple soil functions in diverse situations and to contribute to greening efforts in cities (and beyond) across the world.

scholarly journals Comparison of Compressive and Tensile Strengths of Dry-Cast Concrete with Ordinary Portland and Portland Pozzolana Cements

2018 ◽  
Vol 4 (8) ◽  
pp. 1760 ◽  
Author(s):  
Rasyiid Lathiif Amhudo ◽  
Tavio Tavio ◽  
I Gusti Putu Raka
Keyword(s):  
Ordinary Portland Cement ◽  
Precast Concrete ◽  
Construction Material ◽  
Health And Safety ◽  
The Past ◽  
Splitting Test ◽  
The World ◽  
Cast Concrete ◽  
Concrete Placement ◽  
Portland Pozzolana Cement

Concrete is the most widely used construction material in the world. Along with the increasing economic needs in the development of construction, precast technology has become a primary solution that leads to the industrialization. The use of precast concrete system offers several advantages, such as rapid erection, higher product quality, lower project cost, better sustainability, and improved occupational health and safety. In general, there are two casting methods used in concrete placement, namely wet- and dry-castings. The dry-cast concrete has also been used for its advantages particularly in precast concrete industries, e.g. its rapid hardening time for fast mold removal (it significantly increases the plant productivity). The use of Portland Pozzolana Cement (PPC) as a replacement to Ordinary Portland Cement (OPC) has become increasingly popular for the past decade. Hence, its application in dry-cast method needs to be further investigated for its mechanical properties such as its compressive and splitting tensile strengths. An experimental work was carried out to examine the properties of dry-cast concrete using both types of cements (PPC and OPC). The development of its compressive strength was also monitored at 1, 7, 14, 21, 28, and 56 days of age. The splitting test was conducted to describe the tensile strength of dry-cast concrete. The observation of crack and failure behaviour of all concrete specimens were also carried out.

scholarly journals Beyond Beauty or Urban Design of Responsibility

2021 ◽  
pp. 1-12
Author(s):  
Thorsten Bürklin ◽  
Michael Peterek
Keyword(s):  
Climate Change ◽  
Urban Planning ◽  
Urban Design ◽  
Green Infrastructure ◽  
Living Conditions ◽  
Urban Spaces ◽  
The World ◽  
Resource Economy ◽  
Land Water

In recent years, urban spaces all over the world have been effectively staged, sometimes all too obviously, and urban design has often concentrated on the implementation of "beautiful" lighthouse projects and globally oriented lifestyle urbanism. However, beauty – also in the broader sense of a beautiful experience – cannot be an end in itself in urban planning. An urban design of responsibility has to be committed to all residents and address the pressing challenges of our time, for example: the almost unlimited consumption of land, water and energy; floods and heatwaves due to climate change; lack of decent living conditions for large parts of the population. Against this background, five strategic guidelines for the integrated and responsible planning of our cities have been developed. These include "comprehensive" and integrated neighbourhoods, a mobility turnaround, interconnected blue and green infrastructure, a circular resource economy and space sharing, and the exploitation of the opportunities of digitalisation for a social and ecological city.

Casinos in Asia: legalizing gambling in the Chinese province of Hainan, the ideological obstacle

2016 ◽  
Vol 10 (1) ◽  
pp. 1-13
Author(s):  
Sebastien Goulard
Keyword(s):  
Literature Review ◽  
Provincial Government ◽  
Religious Movements ◽  
Gaming Industry ◽  
Similar Role ◽  
Western Countries ◽  
The World ◽  
History Of ◽  
Chinese Province ◽  
New Policies

The successful liberalization of the gaming industry in Macau has incited other Asian destinations to reconsider their position on gambling. For the last ten years, new gaming destinations have emerged in Asia. China has still not yet legalized this industry, but since last year, new policies authorizing sport lotteries have been introduced in the province of Hainan. The objective of this measure is to diversify tourism in that province and make Hainan more attractive for visitors. In case of success, this policy could be expanded to other gaming activities and casinos would be legalized in Hainan, as advocated by the provincial government; but legalizing casinos in Hainan may face several obstacles.This paper aims at showing that the success of Asian casino destinations mainly results from China’s ban on gambling. This study will focus on the history of gambling in China, and the reasons for the continuation of gambling prohibition in China. The author will argue that the ideological opposition plays a similar role as religious movements in Western countries. The paper will be illustrated by a literature review analyzing previous examples in other parts of the world. 

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