The Impact of Biodegradable Geotextiles on the Effect of Sodding of Difficult Terrain

Difficult terrain is characterized by deteriorated conditions for plant adaptation, e.g., owing to poor substrate, substantial land slope, or intensive insolation. In terms of plant adaptation, difficult terrain includes newly created ski slopes, any kind of embankment, scarps, levees, and etc. Application of grasses is an effective and economic method of stabilization of the ground. However, sowing of grass-legume mixtures to sod these areas does not typically produce adequate effects. Application of a new generation of protective fabrics with the addition of bird feathers may be a remedy to these problems. The aim of this study was to evaluate the applicability of biodegradable fabrics for covering difficult areas to improve the habitat conditions for plants. To evaluate this issue, an area characterized by difficult conditions for plant development was selected. Five types of protective fabrics were applied. The main factor influencing the efficiency of the sodding of difficult terrain was the application of fabrics that were capable of absorbing water, which were then given to plants over a longer period of time. Vegetation grew easiest through the geotextile made of sheep wool with the addition of bird feathers. Fabrics manufactured from problematic waste materials contribute to an ecological effect as well as an economic effect resulting from lower costs of waste management as well as the income from selling the innovative product.

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Overcoming stereotypes of renewable energy

Voprosy Ekonomiki ◽

10.32609/0042-8736-2019-4-124-136 ◽

2019 ◽

pp. 124-136

Author(s):

Victor D. Gazman

Keyword(s):

Renewable Energy ◽

Empirical Analysis ◽

Energy Generation ◽

New Paradigm ◽

Financial Instrument ◽

Promising Direction ◽

Investment Projects ◽

Power Stations ◽

New Generation ◽

The Impact

The article considers prerequisites for the formation of a new paradigm in the energy sector. The factors that may affect the imminent change of leadership among the energy generation are analyzed. The variability of the projects of creation and functioning of power stations is examined. The focus is made on problematic aspects of the new generation, especially, storage and supply of energy, achieving a system of parity that ensures balance in pricing generations. The author substantiates the principles of forming system of parities arising when comparing traditional and new generations. The article presents the results of an empirical analysis of the 215 projects for the construction of facilities for renewable energy. The significance and direction of the impact of these factors on the growth in investment volumes of transactions are determined. The author considers leasing as an effective financial instrument for overcoming stereotypes of renewable energy and as a promising direction for accelerated implementation of investment projects.

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Assessing Impact of Freshwater Lake Ecosystem on Residential Property Prices using Hedonic Property Pricing approach: Evidence from Vellayanilake of Kerala

Indian Journal of Economics and Development ◽

10.35716/ijed/20002 ◽

2020 ◽

pp. 125-130

Keyword(s):

Economic Effect ◽

Lake Ecosystem ◽

Aesthetic Value ◽

Market Prices ◽

Scenic Beauty ◽

Property Prices ◽

Property Price ◽

Valuation Technique ◽

Hedonic Property ◽

The Impact

ABSTRACT The ecosystem services provided by wetlands can be direct or indirect. The direct services can be mostly valued through market prices, but the indirect service like aesthetic beauty and its impact on property prices surrounding the natural resource cannot be directly measured. To single out the economic effect of particular amenity which influenced the land property prices, the advanced valuation technique Hedonic property pricing was most popularly used. In this study, it was attempted to assess using the hedonic property pricing technique, the impact of the presence of the freshwater body, the Vellayani Lake on land property prices surrounding it. The results revealed that the marginal implicit price of getting one cent of land with lake view evaluated at mean property price of Rs. 2,44250 was Rs.79171. The total aesthetic value of land with the scenic beauty of the lake was Rs. 275.92 crores.

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Numerical simulation of the impact of an integrated renovation project on the Maowei Sea hydrodynamic environment

Scientific Reports ◽

10.1038/s41598-021-96441-1 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Cui Wang ◽

Ling Cai ◽

Yaojian Wu ◽

Yurong Ouyang

Keyword(s):

Water Exchange ◽

Land Reclamation ◽

Three Dimensional ◽

Exchange Capacity ◽

Reclamation Project ◽

Hydrodynamic Environment ◽

Sea Area ◽

Water Quality Models ◽

The Impact ◽

Main Factor

AbstractIntegrated renovation projects are important for marine ecological environment protection. Three-dimensional hydrodynamics and water quality models are developed for the Maowei Sea to assess the hydrodynamic environment base on the MIKE3 software with high resolution meshes. The results showed that the flow velocity changed minimally after the project, decreasing by approximately 0.12 m/s in the east of the Maowei Sea area and increasing by approximately 0.01 m/s in the northeast of the Shajing Port. The decrease in tidal prism (~ 2.66 × 106 m3) was attributed to land reclamation, and accounted for just 0.86% of the pre-project level. The water exchange half-life increased by approximately 1 day, implying a slightly reduced water exchange capacity. Siltation occurred mainly in the reclamation and dredging areas, amounting to back-silting of approximately 2 cm/year. Reclamation project is the main factor causing the decrease of tidal volume and weakening the hydrodynamics in Maowei Sea. Adaptive management is necessary for such a comprehensive regulation project. According to the result, we suggest that reclamation works should strictly prohibit and dredging schemes should optimize in the subsequent regulation works.

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Spatio-Temporal Variation Characteristics of Snow Depth and Snow Cover Days over the Tibetan Plateau

Water ◽

10.3390/w13030307 ◽

2021 ◽

Vol 13 (3) ◽

pp. 307

Author(s):

Chi Zhang ◽

Naixia Mou ◽

Jiqiang Niu ◽

Lingxian Zhang ◽

Feng Liu

Keyword(s):

Tibetan Plateau ◽

Snow Cover ◽

Snow Depth ◽

Feedback Effect ◽

Effect Of Temperature ◽

The Tibetan Plateau ◽

Reanalysis Dataset ◽

Spatio Temporal ◽

The Impact ◽

Main Factor

Changes in snow cover over the Tibetan Plateau (TP) have a significant impact on agriculture, hydrology, and ecological environment of surrounding areas. This study investigates the spatio-temporal pattern of snow depth (SD) and snow cover days (SCD), as well as the impact of temperature and precipitation on snow cover over TP from 1979 to 2018 by using the ERA5 reanalysis dataset, and uses the Mann–Kendall test for significance. The results indicate that (1) the average annual SD and SCD in the southern and western edge areas of TP are relatively high, reaching 10 cm and 120 d or more, respectively. (2) In the past 40 years, SD (s = 0.04 cm decade−1, p = 0.81) and SCD (s = −2.3 d decade−1, p = 0.10) over TP did not change significantly. (3) The positive feedback effect of precipitation is the main factor affecting SD, while the negative feedback effect of temperature is the main factor affecting SCD. This study improves the understanding of snow cover change and is conducive to the further study of climate change on TP.

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The Impact of Initial Conditions in N-Body Simulations of Debris Discs

Publications of the Astronomical Society of Australia ◽

10.1017/pasa.2015.41 ◽

2015 ◽

Vol 32 ◽

Cited By ~ 4

Author(s):

E. Thilliez ◽

S. T. Maddison

Keyword(s):

Numerical Simulations ◽

Initial Conditions ◽

Parent Body ◽

Dust Trapping ◽

Physical Context ◽

Disc Width ◽

Wide Range ◽

Belt Width ◽

New Generation ◽

The Impact

AbstractNumerical simulations are a crucial tool to understand the relationship between debris discs and planetary companions. As debris disc observations are now reaching unprecedented levels of precision over a wide range of wavelengths, an appropriate level of accuracy and consistency is required in numerical simulations to confidently interpret this new generation of observations. However, simulations throughout the literature have been conducted with various initial conditions often with little or no justification. In this paper, we aim to study the dependence on the initial conditions of N-body simulations modelling the interaction between a massive and eccentric planet on an exterior debris disc. To achieve this, we first classify three broad approaches used in the literature and provide some physical context for when each category should be used. We then run a series of N-body simulations, that include radiation forces acting on small grains, with varying initial conditions across the three categories. We test the influence of the initial parent body belt width, eccentricity, and alignment with the planet on the resulting debris disc structure and compare the final peak emission location, disc width and offset of synthetic disc images produced with a radiative transfer code. We also track the evolution of the forced eccentricity of the dust grains induced by the planet, as well as resonance dust trapping. We find that an initially broad parent body belt always results in a broader debris disc than an initially narrow parent body belt. While simulations with a parent body belt with low initial eccentricity (e ~ 0) and high initial eccentricity (0 < e < 0.3) resulted in similar broad discs, we find that purely secular forced initial conditions, where the initial disc eccentricity is set to the forced value and the disc is aligned with the planet, always result in a narrower disc. We conclude that broad debris discs can be modelled by using either a dynamically cold or dynamically warm parent belt, while in contrast eccentric narrow debris rings are reproduced using a secularly forced parent body belt.

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An Analysis of The Impact of Short-Term Vacation Rentals on the Hotel Industry

Journal of Hospitality & Tourism Research ◽

10.1177/10963480211019110 ◽

2021 ◽

pp. 109634802110191

Author(s):

Jungtae Soh ◽

Kwanglim Seo

Keyword(s):

Economic Effect ◽

Hotel Industry ◽

Price Difference ◽

Multiple Sources ◽

Short Term ◽

Hotel Performance ◽

Negative Effect ◽

Research Gap ◽

The Impact ◽

Scholarly Attention

Much scholarly attention has been paid to Airbnb’s influence on the hotel industry. However, extant studies have limitations because they consider only Airbnb while overlooking various other short-term vacation rental players that can also affect performance of hotels. To address this research gap, this study aims to provide a broader understanding of the impacts of short-term vacation rentals by analyzing data obtained from various vacation rental platforms. This study shows that while increase in short-term vacation rentals has an overall negative effect on hotel performance, the economic effect is more significant in the low-end market than in the high-end market. Our findings further reveal that the negative effect is reduced when there is a large price difference between short-term vacation rentals and hotels. By comprehensively examining multiple sources of data on hotels and vacation rentals, this study brings alternative perspectives to the attention of researchers for further investigation of vacation rentals.

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Measuring Key Quality Indicators in Cloud Gaming: Framework and Assessment Over Wireless Networks

Sensors ◽

10.3390/s21041387 ◽

2021 ◽

Vol 21 (4) ◽

pp. 1387

Author(s):

Oswaldo Sebastian Peñaherrera-Pulla ◽

Carlos Baena ◽

Sergio Fortes ◽

Eduardo Baena ◽

Raquel Barco

Keyword(s):

Communication Networks ◽

Mobile Networks ◽

Video Game ◽

Know How ◽

Fifth Generation ◽

New Generation ◽

Graphics Rendering ◽

The Impact

Cloud Gaming is a cutting-edge paradigm in the video game provision where the graphics rendering and logic are computed in the cloud. This allows a user’s thin client systems with much more limited capabilities to offer a comparable experience with traditional local and online gaming but using reduced hardware requirements. In contrast, this approach stresses the communication networks between the client and the cloud. In this context, it is necessary to know how to configure the network in order to provide service with the best quality. To that end, the present work defines a novel framework for Cloud Gaming performance evaluation. This system is implemented in a real testbed and evaluates the Cloud Gaming approach for different transport networks (Ethernet, WiFi, and LTE (Long Term Evolution)) and scenarios, automating the acquisition of the gaming metrics. From this, the impact on the overall gaming experience is analyzed identifying the main parameters involved in its performance. Hence, the future lines for Cloud Gaming QoE-based (Quality of Experience) optimization are established, this way being of configuration, a trendy paradigm in the new-generation networks, such as 4G and 5G (Fourth and Fifth Generation of Mobile Networks).

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The methodology for assessing the impact of new generation superplasticizers on air content in self-compacting concrete

Construction and Building Materials ◽

10.1016/j.conbuildmat.2013.11.092 ◽

2014 ◽

Vol 53 ◽

pp. 488-502 ◽

Cited By ~ 28

Author(s):

Beata Łaźniewska-Piekarczyk

Keyword(s):

Self Compacting Concrete ◽

Air Content ◽

New Generation ◽

The Impact

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“The New Generation”: Mental Hygiene and the Portrayals of Children by the National Film Board of Canada, 1946–1967

History of Education Quarterly ◽

10.1111/j.1748-5959.2003.tb00134.x ◽

2003 ◽

Vol 43 (4) ◽

pp. 540-570 ◽

Cited By ~ 2

Author(s):

Brian J. Low

Keyword(s):

Social Relations ◽

Mental Hygiene ◽

Social Attitudes ◽

Child Rearing ◽

Mass Psychology ◽

National Film Board ◽

The Mind ◽

Schooling Practices ◽

New Generation ◽

The Impact

That is the achievement of the psychologists. In our own society they are very kind, and do everything for our own good. The tales of what they do elsewhere are rather terrifying.—Hilda NeatbySo Little for the Mind (1953)Documenting the impact of the mental hygiene movement has been problematical for historians. The hygienists operated in the realm of mass psychology and social relations, within the “mentalities” of children—particularly of the postwar generation—who have left little observable evidence of changing social attitudes and relationships resulting from changes to mass child-rearing and schooling practices. The influence of the movement upon parenting literature and curricular documents may be readily observed in postwar baby books, magazines, newspapers, radio scripts, and films, as well as in the changing language of educational theorists and practitioners. But as to seeing the actual effects of this material upon any society, documentary evidence has remained elusive.

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