The Impact of Nanotechnology on Environment

2017 ◽  
pp. 1659-1689
Author(s):  
Rathinasabapathi Jayavarthanan ◽  
Anima Nanda ◽  
M. Amin Bhat
Keyword(s):  
Environmental Remediation ◽  
Production Equipment ◽  
Green Energy ◽  
Water Filtration ◽  
Innovative Methods ◽  
Wide Range ◽  
Energy Synthesis ◽  
Improved Performance ◽  
The Impact ◽  
By Products

Nanotechnology is an emerging field that covers a wide range of technologies which are presently under development in nanoscale. It plays a major role in the development of innovative methods to produce new products, to substitute existing production equipment and to reformulate new materials and chemicals with improved performance resulting in less consumption of energy and materials and reduced harm to the environment as well as environmental remediation. The environmental impact of nanotechnology is the possible effects that the use of nanotechnological materials and devices will have on the environment. This impact can be split into two aspects: the potential for nanotechnological innovations to help improve the environment (beneficial part), and the possibly novel type of pollution that nanotechnological materials might cause if released into the environment (harmful part). The nanoparticles can be used an individual product in pure form or as an adjuvant with existing products in order enhance their activities. The beneficial aspects of nanoparticles include water filtration and treatment, green energy synthesis, degradation of plastics, detoxification harmful dyes and chemicals. The harmful aspects consist of unwanted by-products of nanoparticles, effluents of nano industries, etc.

The Impact of Nanotechnology on Environment

2017 ◽  
pp. 153-193
Author(s):  
Rathinasabapathi Jayavarthanan ◽  
Anima Nanda ◽  
M. Amin Bhat
Keyword(s):  
Environmental Remediation ◽  
Production Equipment ◽  
Green Energy ◽  
Water Filtration ◽  
Innovative Methods ◽  
Wide Range ◽  
Energy Synthesis ◽  
Improved Performance ◽  
The Impact ◽  
By Products

Nanotechnology is an emerging field that covers a wide range of technologies which are presently under development in nanoscale. It plays a major role in the development of innovative methods to produce new products, to substitute existing production equipment and to reformulate new materials and chemicals with improved performance resulting in less consumption of energy and materials and reduced harm to the environment as well as environmental remediation. The environmental impact of nanotechnology is the possible effects that the use of nanotechnological materials and devices will have on the environment. This impact can be split into two aspects: the potential for nanotechnological innovations to help improve the environment (beneficial part), and the possibly novel type of pollution that nanotechnological materials might cause if released into the environment (harmful part). The nanoparticles can be used an individual product in pure form or as an adjuvant with existing products in order enhance their activities. The beneficial aspects of nanoparticles include water filtration and treatment, green energy synthesis, degradation of plastics, detoxification harmful dyes and chemicals. The harmful aspects consist of unwanted by-products of nanoparticles, effluents of nano industries, etc.

An Impact of New Technologies on Cropping Pattern in the Eastern Hills of Nepal

2020 ◽  
Vol 10 ◽  
pp. 197-210
Author(s):  
Shyam Prasad Wagle
Keyword(s):  
New Technologies ◽  
Group Discussion ◽  
Secondary Data ◽  
Agricultural System ◽  
Cropping Pattern ◽  
Governmental Organizations ◽  
Innovative Methods ◽  
Wide Range ◽  
The Government ◽  
The Impact

This abstract starts with the purpose of the study of the impact of using new technologies on cropping pattern particularly in the case of the Eastern hills. It also examines the role of governmental organizations and non-governmental organizations to improve agricultural systems of this area. Relevant data have been obtained from both primary and secondary sources. It draws on the data collected from interview, focus group discussion, key informant survey, and field observation. For this, 30 percent sample households were selected from three altitude belts such as upper, middle and lower, ranging from 300 to 2,250 masl along the Koshi-highway. It has a wide range of climates, ranging from sub-tropical to alpine with monsoon precipitation in the summer for three and half months, and therefore it has diversity in flora and fauna and people. Similarly, secondary data have been collected from various books, journals and official records. This paper has showed that the crucial impact of acceptance of innovative methods in agriculture in the study area is a joint effort of local people, government, and non-government agencies too. The government with the development agencies and non-government organizations has contributed to impart knowledge of the agriculture innovative methods to the local farmers. At the same time, the farmers were enthusiastic to learn and adopt those methods. Consequently, one can easily see the remarkable changes in cropping pattern due to the impact of such innovations. The cereal crops based on agricultural system is gradually moving towards high value off-season crops farming.

Potential of organic filter materials for treating greywater to achieve irrigation quality: a review

2011 ◽  
Vol 63 (9) ◽  
pp. 1832-1840 ◽  
Author(s):  
Sahar S. Dalahmeh ◽  
Lars D. Hylander ◽  
Björn Vinnerås ◽  
Mikael Pell ◽  
Ingrid Öborn ◽  
...  
Keyword(s):  
Organic Matter ◽  
Rural Areas ◽  
Wood Chips ◽  
Septic Tank ◽  
Flow Mode ◽  
Oil And Grease ◽  
Carrier Material ◽  
Wide Range ◽  
The Impact ◽  
By Products

The objectives of this literature review were to: (i) evaluate the impact of greywater generated in rural communities, with the emphasis on Jordanian conditions, on soil, plant and public health and assess the need for treatment of this greywater before it is used for irrigation, and (ii) assess the potential of different types of organic by-products as carrier material in different filter units for removal of pollutants from greywater. Greywater with high BOD5, COD, high concentrations of SS, fat, oil and grease and high levels of surfactants is commonly found in rural areas in Jordan. Oxygen depletion, odour emission, hydrophobic soil phenomena, plant toxicity, blockage of piping systems and microbiological health risks are common problems associated with greywater without previous treatment. Organic by-products such as wood chips, bark, peat, wheat straw and corncob may be used as carrier material in so-called mulch filters for treating wastewater and greywater from different sources. A down-flow-mode vertical filter is a common setup used in mulch filters. Wastewaters with a wide range of SS, cBOD5 and COD fed into different mulch filters have been studied. The different mulch materials achieved SS removal ranging between 51 and 91%, a BOD5 reduction range of 55–99.9%, and COD removal of 51–98%. Most types of mulches achieved a higher organic matter removal than that achieved by an ordinary septic tank. Bark, peat and wood chips filters removed organic matter better than sand and trickling filters, under similar conditions. Release of filter material and increase in COD in the effluent was reported using some mulch materials. In conclusion, some mulch materials such as bark, peat and woodchips seem to have a great potential for treatment of greywater in robust, low-tech systems. They can be expected to be resilient in dealing with variable low and high organic loads and shock loads.

scholarly journals Application of EPR Spectroscopy in TiO2 and Nb2O5 Photocatalysis

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1514
Author(s):  
Osama Al-Madanat ◽  
Barbara Nascimento Nunes ◽  
Yamen AlSalka ◽  
Amer Hakki ◽  
Mariano Curti ◽  
...  
Keyword(s):  
Epr Spectroscopy ◽  
Environmental Remediation ◽  
Deep Understanding ◽  
Heterogeneous Photocatalysis ◽  
Green Energy ◽  
Trap States ◽  
Photocatalytic Process ◽  
Experimental Conditions ◽  
Paramagnetic Resonance ◽  
Wide Range

The interaction of light with semiconducting materials becomes the center of a wide range of technologies, such as photocatalysis. This technology has recently attracted increasing attention due to its prospective uses in green energy and environmental remediation. The characterization of the electronic structure of the semiconductors is essential to a deep understanding of the photocatalytic process since they influence and govern the photocatalytic activity by the formation of reactive radical species. Electron paramagnetic resonance (EPR) spectroscopy is a unique analytical tool that can be employed to monitor the photoinduced phenomena occurring in the solid and liquid phases and provides precise insights into the dynamic and reactivity of the photocatalyst under different experimental conditions. This review focus on the application of EPR in the observation of paramagnetic centers formed upon irradiation of titanium dioxide and niobium oxide photocatalysts. TiO2 and Nb2O5 are very well-known semiconductors that have been widely used for photocatalytic applications. A large number of experimental results on both materials offer a reliable platform to illustrate the contribution of the EPR studies on heterogeneous photocatalysis, particularly in monitoring the photogenerated charge carriers, trap states, and surface charge transfer steps. A detailed overview of EPR-spin trapping techniques in mechanistic studies to follow the nature of the photogenerated species in suspension during the photocatalytic process is presented. The role of the electron donors or the electron acceptors and their effect on the photocatalytic process in the solid or the liquid phase are highlighted.

scholarly journals The impact of digitalization of the economy upon social governance: analysis of current global trends

2021 ◽  
pp. 1-7
Author(s):  
Kira Vadimovna Isaeva
Keyword(s):  
Social Issues ◽  
Human Life ◽  
Developed Countries ◽  
Digital Environment ◽  
Digital Government ◽  
Fundamental Factor ◽  
Innovative Methods ◽  
Social Governance ◽  
Wide Range ◽  
The Impact

The subject of this research is the modern system of social governance, which has been transformed in the conditions of digital environment. Particular attention is given to the definition of electronic-digital civilization and its criteria. The concept of “electronic-digital civilization”, with emphasis on the transitional state of society, was introduced into the scientific discourse by the Academician of the Russian Academy of Sciences G. V. Osipov. The goal of this article is to determine the criteria of this concept. Description is given the innovative methods and techniques of social governance, namely those that depend on digitalization of the economy. The events of 2020-2021, related to the COVID-19 pandemic, demonstrated the increase of digitalization of human life and nonlinearity of social development. The shift of industrial era towards modern electronic-digital era entails qualitative transformations in the lifestyle of the entire humanity, which certainly requires the implementation of innovative methods in social governance. The author outlines the basic criteria of electronic-digital stage in the development of humanity. The analysis of scientific literature indicates the a wide range of scientific research in the sphere of humanities are dedicated to examination of the effects of digitalization in the economy. However, the emerging social issues in the conditions of digital environment require expert evaluation of sociologists, psychologists, political scientists, and legal experts. The article determines the modern forms and methods of social governance, which are currently implemented by the industrially developed countries. The fundamental factor of transformation of the style of governance became the process of all-round “digitalization of the economy”. The statistical data on the “effects of digitalization” is provided. The author explores such modern trends in governance, such as “E–government”, transitioning to “Digital government”, “Soft–power” technologies, “Agile methodology”, transition to 5G, etc.

An Impact of Innovations on Agricultural Production and Malong the Koshi-Highway of Eastern Nepal

2020 ◽  
Vol 4 (1) ◽  
pp. 164-175
Author(s):  
Shyam Prasad Wagle
Keyword(s):  
Agricultural Production ◽  
Crop Production ◽  
New Technologies ◽  
Production Systems ◽  
Secondary Data ◽  
Primary Data ◽  
Innovative Methods ◽  
Wide Range ◽  
The Government ◽  
The Impact

 The study assesses the impact of using new technologies on crop production and marketing of selected crops particularly in the case of the Eastern hills. It also evaluates the role of governmental and non-govrnmental organizations to improve agricultural production systems too. Relevant data have been collected from both primary and secondary sources. Primary data draws from the interview, key informant survey and field observation. For this, 30 percent sample households were selected from three altitude belts (upper, middle and lower belts) ranging from 300 to 2,250 masl along the Koshi-highway. It has a wide range of climates, ranging from sub-tropical to alpine with monsoon precipitation in the summer for three and half months and therefore it has diversity in flora and fauna, and people. Similarly, secondary data havebeen gathered from various books, journals and official records. This paper presented that the crucial impact of acceptance of innovative methods in agriculture in the study area is a combined effort of both local people and government. The government together with the development agencies and non-government organizations has contributed to impart knowledge of the agriculture innovative methods in the local farmers and at the same time, the farmers were enthusiastic to learn and adopt those methods. As a result, one can easily see the remarkable changes in crop production due to the impact of new technologies.

scholarly journals The impact of Clean Spark Spread expectations on storage hydropower generation

2021 ◽  
Author(s):  
Claudia Condemi ◽  
Loretta Mastroeni ◽  
Pierluigi Vellucci
Keyword(s):  
Large Scale ◽  
Production Capacity ◽  
Energy Transition ◽  
Green Energy ◽  
Electric Power System ◽  
Plant Production ◽  
Hydropower Generation ◽  
Wide Range ◽  
The Right ◽  
The Impact

AbstractStorage hydropower generation plays a crucial role in the electric power system and energy transition because it is the most widespread power generation with low greenhouse gas emissions and, moreover, it is relatively cheap to ramp up and down. As a result, it provides flexibility to the grid and helps mitigate the short-term production uncertainty that affects most green energy technologies. However, using water in reservoirs represents an opportunity cost, which is related to the evolution of plant production capacity and production profitability. As the latter is related to a wide range of types of variables, in order to incorporate it in a large-scale prediction model it is important to select the variables that impact most on storage hydropower generation. In this paper, we investigate the impact of the variables influencing the choices of price maker producers, and, in particular we study the impact of Clean Spark Spread expectations on storage hydroelectric generation. In this connection, using entropy and machine learning tools, we present a method for embedding this expectations in a model to predict storage hydropower generation, showing that, for some time horizon, expectations on CSS have a greater impact than expectations on power prices. It is shown that, if the right mix of power price and CSS expectations is considered, the prediction error of the model is drastically reduced. This implies that it is important to incorporate CSS expectations into the storage hydropower model.

Hydrogen Cyanide Polymers from the Impact of Comet P/Shoemaker-Levy 9 on Jupiter

1997 ◽  
Vol 161 ◽  
pp. 179-187
Author(s):  
Clifford N. Matthews ◽  
Rose A. Pesce-Rodriguez ◽  
Shirley A. Liebman
Keyword(s):  
Amino Acids ◽  
Solar System ◽  
Hydrogen Cyanide ◽  
Nitrogen Heterocycles ◽  
Laboratory Studies ◽  
Heterogeneous Solids ◽  
The Many ◽  
Comet Halley ◽  
The Impact ◽  
By Products

AbstractHydrogen cyanide polymers – heterogeneous solids ranging in color from yellow to orange to brown to black – may be among the organic macromolecules most readily formed within the Solar System. The non-volatile black crust of comet Halley, for example, as well as the extensive orangebrown streaks in the atmosphere of Jupiter, might consist largely of such polymers synthesized from HCN formed by photolysis of methane and ammonia, the color observed depending on the concentration of HCN involved. Laboratory studies of these ubiquitous compounds point to the presence of polyamidine structures synthesized directly from hydrogen cyanide. These would be converted by water to polypeptides which can be further hydrolyzed to α-amino acids. Black polymers and multimers with conjugated ladder structures derived from HCN could also be formed and might well be the source of the many nitrogen heterocycles, adenine included, observed after pyrolysis. The dark brown color arising from the impacts of comet P/Shoemaker-Levy 9 on Jupiter might therefore be mainly caused by the presence of HCN polymers, whether originally present, deposited by the impactor or synthesized directly from HCN. Spectroscopic detection of these predicted macromolecules and their hydrolytic and pyrolytic by-products would strengthen significantly the hypothesis that cyanide polymerization is a preferred pathway for prebiotic and extraterrestrial chemistry.

THE IMPACT OF LEADERSHIP PRACTICES TO TEAM MEMBERS’ SATISFACTION

2009 ◽  
Vol 8 (1) ◽  
Author(s):  
Chalimah .
Keyword(s):  
Conflict Resolution ◽  
Leadership Practices ◽  
Hotel Industry ◽  
Leader Behavior ◽  
Team Leader ◽  
Shop Floor ◽  
Team Members ◽  
Top Executives ◽  
Wide Range ◽  
The Impact

eamwork is becoming increasingly important to wide range of operations. It applies to all levels of the company. It is just as important for top executives as it is to middle management, supervisors and shop floor workers. Poor teamwork at any level or between levels can seriously damage organizational effectiveness. The focus of this paper was therefore to examine whether leadership practices consist of team leader behavior, conflict resolution style and openness in communication significantly influenced the team member’s satisfaction in hotel industry. Result indicates that team leader behavior and the conflict resolution style significantly influenced team member satisfaction. It was surprising that openness in communication did not affect significantly to the team members’ satisfaction.

The Impact of Mobile Gadget in EFL Learning: Perceptions of EFL Undergraduates

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Imam - Fauzi
Keyword(s):  
Self Report ◽  
Fourth Generation ◽  
Learning Activity ◽  
Advanced Country ◽  
Innovative Methods ◽  
Phone Calls ◽  
Teachers And Students ◽  
Efl Students ◽  
The Impact ◽  
Efl Learning

AbstractMost of young people are enthusiasticin having the most recent mobile gadgets just to boast among their peers. They likely utilize them to make phone calls, take pictures, listen to songs, watch videos, or surf the internet access for learning or just entertainment. In a technologically advanced country like Indonesia, the third and fourth generation (3G, 4G) mobile devices are available at affordable prices, and people of all streams find it necessary to own a mobile gadget for connecting and communicating.  Moreover, it has become a common trend among undergraduates to carry a mobile gadget to the classroom as well.In this paper, the researcher emphasize the potential of mobile gadgets as a learning tool for students and have incorporated them into the learning environment.The present study examines the application of mobile gadgetin EFL learning and investigates the perceptions of EFL students about mobile gadget in learning activity.  A field study was conducted on thirty undergraduatestudents majoring in accounting study Serang Raya University.  The methodology of data collection included a self-report for students and teachers’ and students’ questionnaire. Findings of the research are significant for EFL teachers and researchers for introducing innovative methods and helpful materials for the English classroom.Keywords: Mobile gadget, students’ perception, teachers’ perception..

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