scholarly journals Sustainable Electric Personal Mobility: The Design of a Wireless Charging Infrastructure for Urban Tourism

2021 ◽  
Vol 13 (3) ◽  
pp. 1270
Author(s):  
Sung Il Kwag ◽  
Uhjin Hur ◽  
Young Dae Ko
Keyword(s):  
Public Transportation ◽  
New Technologies ◽  
Point Of View ◽  
Urban Tourism ◽  
Electric Mobility ◽  
Wireless Charging ◽  
Efficient Design ◽  
Personal Mobility ◽  
Charging Infrastructure ◽  
Mobility System

Though new technologies have been applied in all industries, electric mobility technology using eco-friendly energy is drawing a great deal of attention. This research focuses on a personal electric mobility system for urban tourism. Some tourism sites such as Gyeongju, Korea, have broad spaces for tourists to walk around, but the public transportation system has been insufficiently developed due to economic reasons. Therefore, personal mobility technology such as electric scooters can be regarded as efficient alternatives. For the operation of electric scooters, a charging infrastructure is necessary. Generally, scooters can be charged via wires, but this research suggests an advanced electric personal mobility system based on wireless electric charging technology that can accommodate user convenience. A mathematical model-based optimization was adopted to derive an efficient design for a wireless charging infrastructure while minimizing total investment costs. By considering the type of tourists and their tour features, optimal locations and lengths of the static and dynamic wireless charging infrastructure are derived. By referring to this research, urban tourism can handle transportation issues from a sustainable point of view. Moreover, urban tourism will have a better chance of attracting tourists by conserving heritage sites and by facilitating outdoor activities with electric personal mobility.

scholarly journals Comparative Analysis of Sharing Bike Systems Based on Sustainability Indicators

2019 ◽  
Vol 8 (5) ◽  
pp. 445
Author(s):  
Yurui HAN ◽  
Serge ROHMER
Keyword(s):  
Public Transportation ◽  
Transportation Systems ◽  
Sustainability Indicators ◽  
Point Of View ◽  
Sustainable Urban Development ◽  
Urban Mobility ◽  
The Sustainable Development ◽  
Bike Sharing ◽  
Mobility System ◽  
Public Transportation Systems

With the growing importance and widely application of the sharing bike system in public transportation systems in cities, many relevant problems emerged, which brought serious influence to the sustainable development of the system. The aim of this paper is first to research the existing sustainability indicators of urban mobility system through literature reviews, next it is to redefine and select the related indicators of sharing bike system through deeply understanding the evolution of bike sharing systems in cities from a sustainable point of view. Then, indicators are selected and applied to better understand the generations of sharing bike systems after the description of the different generations of sharing bike systems. The comparison highlights which characteristics of sharing bike system should be considered to adopt to a sustainable urban development and which features of the sharing bike system could need improvement and change to cater to active demand of the city development.Keyword: sustainability, urban mobility, sharing bike system, indicators,

scholarly journals Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 185
Author(s):  
Yan Xu ◽  
Baojian Wu ◽  
Xinrui Jiang ◽  
Haomiao Guo ◽  
Feng Wen
Keyword(s):  
Doping Concentration ◽  
Point Of View ◽  
Fiber Amplifiers ◽  
Efficient Design ◽  
Absorption Loss ◽  
Differential Mode ◽  
Transmission Method ◽  
Modal Gain ◽  
Analysis Process ◽  
Erbium Doped

According to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating the mode–gain curve dependent on the average population inversion. The absorption loss coefficient of an FM-EDF was measured in our experimental platform and used to estimate the effective erbium-ion doping concentration. The feasibility of the extrapolation method was verified by simulation and comparison with the transmission method. Furthermore, the FM-EDFAs with high modal gain and low differential mode gain (DMG) could be optimized by adjusting the FM-EDF’s length and pump power. The analysis process presented here is very useful for the efficient design of FM-EDFAs from a practical point of view.

scholarly journals Interdisciplinary Analysis of Social Acceptance Regarding Electric Vehicles with a Focus on Charging Infrastructure and Driving Range in Germany

2021 ◽  
Vol 12 (1) ◽  
pp. 25
Author(s):  
Amelie Burkert ◽  
Heiko Fechtner ◽  
Benedikt Schmuelling
Keyword(s):  
Value Chain ◽  
Social Acceptance ◽  
Electric Mobility ◽  
Transport Sector ◽  
Special Focus ◽  
Full Potential ◽  
Negative Effects ◽  
Resource Saving ◽  
Charging Infrastructure ◽  
Driving Range

A variety of measures are currently being taken on both the national and international levels in order to mitigate the negative effects of climate change. The promotion of electric mobility is one such measure for the transport sector. As a key component in a more environmentally-friendly, resource-saving, and efficient transport sector, electric mobility promises to create better sustainability. Several challenges still need to be met to exploit its full potential. This requires adapting the car technology, the value chain of vehicles, loads on the electricity network, the power generation for the drive, traffic, and charging infrastructure. The challenges to this endeavor are not only technical in nature, but they also include social acceptance, concerns, and economic, as well as ecological, aspects. This paper seeks to discuss and elucidate these problems, giving special focus to the issues of driving range, phenomenon of range anxiety, charging time, and complexity of the charging infrastructure in Germany. Finally, the development of social acceptance in Germany from 2011 to 2020 is investigated.

Optimization of Wind Turbines Using Helicoidal Vortex Model

2003 ◽  
Author(s):  
Jean-Jacques Chattot
Keyword(s):  
Minimum Energy ◽  
Energy Condition ◽  
Integral Relation ◽  
Point Of View ◽  
Maximum Output ◽  
Efficient Design ◽  
Profile Data ◽  
Vortex Model ◽  
Viscous Profile ◽  
Optimum Solution

The problem of the design of a wind turbine for maximum output is addressed from an aerodynamical point of view. It is shown that the optimum inviscid design, based on the Goldstein model, satifies the minimum energy condition of Betz only for light loading. The more general equation governing the optimum is derived and an integral relation is obtained, stating that the optimum solution satisfies the minimum energy condition of Betz in the Trefftz plane “in the average”. The discretization of the problem is detailed, including the viscous correction based on the 2-D viscous profile data. A constraint is added to account for the force on the tower. The minimization problem is solved very efficiently by relaxation. Several optimized solutions are calculated and compared with the NREL rotor, using the same profile, but different chord and twist distributions. In all cases, the optimization produces a more efficient design.

scholarly journals JOURNEY THROUGH “FIELDS” OF AGEING - FROM “WORLD OF ELDERS” TO “WORLDS OF SENIORS”

2016 ◽  
Vol 1 (2) ◽  
pp. 123
Author(s):  
Orazio Licciardello ◽  
Manuel Mauceri ◽  
Graziella Di Marco ◽  
Maria Giuseppina Cardella
Keyword(s):  
Quality Of Life ◽  
University Students ◽  
Self Efficacy ◽  
New Technologies ◽  
Social Representations ◽  
The Elderly ◽  
Point Of View ◽  
Active Ageing ◽  
Digital Skills

Abstract.We conducted some researches in order to explore “fields” or dimensions of elderly people’s Quality of Life (QoL), both as self-perception and hetero-perception. A set of researches were conducted in Italy and Spain, involving seniors and university students. The aim was to explore the seniors’ QoL from both their and the students’ point of view. Results showed elderly people perceived their own life better than the “other” attributed to them; they were quite good at managing Positive and Negative Emotions. Spanish university students represented more positively the elderly people’s QoL than Italian colleagues. A Positive Affect as well as an empathic attitude towards seniors affected a better representation about elderly people’s QoL. Another set of studies was focused on the elderly people’s QoL and New Technologies (NTs) as these may offer opportunities both to maintain an independent lifestyle and to being involved in relevant activities. Most participants had nor any digital skills neither prejudices on the NTs; the perceived QoL was quite positive; Self-Efficacy believes were really high. The QoL was affected only by Self-Efficacy. A workshop was held, involving a small group of both disabled and healthy seniors; it was focused on the NTs, as tools to promote an active citizenship. After Training our seniors improved their Digital Skills and their own Quality of Life. In the end, a study was conducted in order to verify how both empathy (Empatic Concern; Perspective Taking), Theory on Mind (RMET) and contact worked well to improve QoL levels attributed to elders by a group of university students. On an applicative plan, empathy and TOM should represent the backdrop in supervised experiences of contact between students and elders. Further research will be conduct on this path.Key-Words: Active ageing; Quality of Life; Social Representations; Contact; Empathy.

scholarly journals Business ideas in start-ups

2020 ◽  
Vol 83 ◽  
pp. 01063
Author(s):  
Štefan Slávik
Keyword(s):  
Information And Communication Technologies ◽  
New Technologies ◽  
Legal Protection ◽  
Communication Technologies ◽  
Point Of View ◽  
The Internet ◽  
Development Cycle ◽  
Start Up ◽  
Information And Communication ◽  
Start Ups

Start-up is a modern entrepreneurship form designed to realize original business ideas, mostly based on new technologies and the Internet. It evolves in the development cycle, which is determined by the business idea development cycle and the financing cycle. The purpose of the paper is to describe and analyse the business idea. The business idea is characterized by its content, circumstances of its origin, degree of originality and evidence of this originality. Start-ups are dominated by business ideas based on the application of information and communication technologies, the business idea is most often created by combining professional and business experience, but its originality is from the international point of view only average and the level of legal protection is quite rare.

scholarly journals Evolving Scenario In Indian Blood Transfusion Industry: Need for a Study on Re Look at Customer Perceptions and Marketing Strategies

2020 ◽  
Vol 11 (3) ◽  
pp. 3752-3760
Author(s):  
Rejeesh G R ◽  
Ramanakumar K P V ◽  
Manojkrishnan C G
Keyword(s):  
Blood Transfusion ◽  
New Technologies ◽  
Secondary Data ◽  
Marketing Strategies ◽  
Point Of View ◽  
Blood Collection ◽  
Customer Perceptions ◽  
Customer Perspective ◽  
Promotional Strategies ◽  
Buying Behaviour

The purpose of the study is to assess the rapid strides that Blood Transfusion in India is going through currently. The resultant impact on the Industry catering to this sector, and the need for a re-look at the Marketing Strategies under the resulting customer perceptions. The study proposes to reassess these new market influencing factors from a customer perspective, their reach on the buying behaviour from the present, the potential impact on the industry stakeholders to their current marketing & promotional strategies and propose an alternate marketing strategy (if required ) for the new market order. The object of this study was the data on blood collection and related industry post-2012 to date. The blood collection figures and the relevant industry, secondary data were assessed as were the various mergers and acquisitions that happened during the period and the new entrants into the market. The recent amendments in the Drugs & Cosmetics Act of 1940 which govern the Blood Transfusion in India were looked at as well. The resulting assessment is that there is a paradigm shift in the blood transfusion industry in India. There needs to be a reassessment as to the requirements of the benefits from a patient point of view, from a blood centre (customer point of view) and a realtime re-look at the current ways and methods to take the new technologies to the customer most efficiently and affordably.

scholarly journals FORECASTING OF BLOCKCHAIN TECHNOLOGY DEVELOPMENT IN ECONOMY: ACCOUNTING POINT OF VIEW

2019 ◽  
pp. 37-44
Author(s):  
L. Shkulipa
Keyword(s):  
Big Data ◽  
New Technologies ◽  
Technology Development ◽  
Local Economy ◽  
Point Of View ◽  
Negative Effects ◽  
Blockchain Technology ◽  
Hype Cycle ◽  
Predictive Assessment ◽  
Further Development

In the article the importance of blockchain technology in the economy and predicting its development from the accounting point of view was investigated. The methods used in the study are based on the analysis of literature related to disclosure issues and a description of existing blockchain claims on the world stage. On the basis of this, a predictive assessment of the considered results for the further development of blockchain technology in the economy, its impact on accounting and the profession of accountant was made. The findings include the positive and negative effects of blockchain technology on the medical and banking sectors, information technology, the financial sector, and accounting. The blockchain in the hype cycle was considered as a phenomenon that all new technologies undergo before stable existing or disappearing. Based on the consideration of the most famous blockchain projects with the combination of Big Data, the estimation of the development technologies of Blockchain and Big Data in finance was discussed. This study suggests to consider blockchain technology as (1) a new way of sending and processing invoices, documents, contracts, and payments, reducing errors, costs and transaction time; (2) a path to financial equality through affordability; (3) investments in the local economy so that developing countries can grow significantly; (4) updating the currency market and the international monetary and financial transaction system; (5) a major breakthrough in the economy together with the Big Data technology.

scholarly journals Sustainabilization of Hanoi mobility approached from new residential areas: Will it be a city without motorbike?

2019 ◽  
Vol 13 (1) ◽  
pp. 89-99 ◽  
Author(s):  
Tran Minh Tung
Keyword(s):  
Public Transportation ◽  
Transportation System ◽  
Sustainable Transportation ◽  
Urban Traffic ◽  
Residential Areas ◽  
Sustainable Mobility ◽  
Improvement Project ◽  
Personal Mobility ◽  
Doi Moi ◽  
Level Of Satisfaction

Due to the policy of the Doi moi in Vietnam started in 1986, Hanoi has undergone many important changes. Currently, Hanoi's traffic is characterized by seemingly continuous motorcycle flows - a representative of high personal mobility in the context of rising incomes. Congestion, dust, pollution, insecurity, overload, etc., they are important keywords to describe Hanoi's urban traffic. Hanoi has put in place a number of policies to improve the transportation system. In 2017, in Hanoi's new mobility improvement project, there is a regulation on motorcycles: “The municipality will zone by limiting the activities of motorcycles according to the infrastructure and the service capacity of the public transportation system to stop motorcycle activities in the central districts in 2030” that becomes controversial. This article, based on the results of surveys assessing the level of satisfaction and desires of people about traffic at the KDTMs of Hanoi, analyzes the differences between the wishes of the municipality and the practices of Hanoi, through habits, modes of mobility of KDTM residents - the new residential areas of Hanoi that bring a different atmosphere of habitat compared to existing neighborhoods, by changing the mode of (re)making of the city. How will the traffic of KDTM residents be affected by this decision as well as how KDTMs will participate in the sustainable transportation of Hanoi?. It is the KDTMs with their “novelties” that will have to become pioneers creating opportunities of the changing of Hanoi traffic. Keywords: Hanoi; sustainable mobility; efficient transportation; motorcycle; KDTM (new residential area). Received 08 December 2018, Revised 30 January 2019, Accepted 30 January 2019

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