Energy efficiency of ropeways: a model-based analysis

Szlosarek, Robert; Yan, Chenguang; Kröger, Matthias; Nußbaumer, Christian

doi:10.1007/s12469-019-00212-1

Cited by 6 publications

(6 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On contrary, corrupted policymakers greet faster pace of economic growth as his or her "services" become more expensive. This, obviously, happens because if the corporate sector becomes richer it can afford to give more expensive bribes (Szlosarek et al, 2019;Covic and Voss, 2019;Dorantes-Argandar et al, 2019;Iliopoulou et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Investigating the relation of GDP per capita and corruption index

Moiseev¹,

Mikhaylov²,

Varyash³

et al. 2020

JESI

View full text Add to dashboard Cite

The paper is devoted to modelling the corruption perception index in panel data framework. As corruption index is bounded from below and above, traditional econometric multiple regression will produce a bad quality model. In order to correct that, we propose a mathematical framework for modelling bounded variables implementing a logistic function. It is shown that corruption is best explained by GDP per capita and all other major macroeconomic indicators cannot add any statistically significant improvement to the models' accuracy. Thus, we assume, that society wealthiness facilitates the reduction of corruption acts. Indeed, if some individual lives in a society that does not experiences almost any shortage of resources of whatever kind, the less interested this person is in getting wealthier by applying some corruption schemes. These methods are rather popular in less wealthy countries, where temptation to engage into corruption is higher, since it can drastically increase individual's utility function. Therefore, in this research we assert, that the growth of wealth in a society makes corruption recede and not the other way around (reducing corruption helps increase GDP per capita). However, the most counterintuitive finding of this research is the fact, that GDP per capita, adjusted by purchasing power parity, produces the model of a worse quality then just using plain GDP per capita. This fact can be tentatively explained by the flaws in the methodology of calculating these adjustments, since the basket of goods varies drastically across the countries.

show abstract

Section: Discussionmentioning

confidence: 99%

Investigating the relation of GDP per capita and corruption index

Moiseev¹,

Mikhaylov²,

Varyash³

et al. 2020

JESI

View full text Add to dashboard Cite

show abstract

“…Paper proposes the implementation the concept of TBL in Russian companies for increasing level of environment, social and corporate governance and business performance (EBITDA) (Lopatin, 2020 country, Russian business aims to implement these standards in various geographies, for instance, in Africa, where it promotes best practices, especially in public transport sector (Aleshin, 2019;Szlosarek et al, 2019;Covic and Voss, 2019;Dorantes-Argandar et al, 2019;Iliopoulou et al, 2019;Huang et al, 2019;Hadiuzzaman et al, 2019;Jasti et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Triple bottom line and corporate social responsibility performance indicators for Russian companies

Varyash¹,

Mikhaylov²,

Moiseev³

et al. 2020

JESI

View full text Add to dashboard Cite

develops the 3-overlapping-circles sustainability model in the context of CSR performance indicators. The data in this study represents scores of 34 major Russian companies, which operate domestically and abroad, in particular, in developing regions like Africa. The mathematical methods like regression has approved the link between environmental innovations and ESG level. It is the first empirical research using this approach for analysis of CSR performance indicators in Russia, because the same data was unavailable before. The paper suggests that environmental innovations and ESG level is linked to Russian largest companies. If business is stimulated towards environmental innovations and R&D. It gives more projects and make the ESG level higher. Paper proposes the concept of TBL in Russian companies for increasing level of ESG and business performance (EBITDA). Understanding how 3-overlapping-circles model implementation can improve CSR performance indicators is a significant question. In addition, we analyzed regression of CSR performance indicators in 2018 year for Russian large companies to find the optimal solution.

show abstract

“…It is worth noting that the cycle energy efficiency (traction and braking phases) of the RLMC is about 93.6%, resulting in an overall system efficiency of about 74%. A homogenous comparison with a conventional ropeway transportation is rather difficult depending on the influence of several parameters (plant size and capacity, technology, and operational strategies); however, some studies estimate the average efficiency of such systems as much as 50%, where the main share of the power dissipation is related to rolling resistance of sheaves/rollers and bull-wheels (≈ 40%) [27]. Then, the proposed transport system could benefit from a more efficient operation even for routes with an appreciable slope.…”

Section: Dynamic Performancesmentioning

confidence: 99%

Design Issues of a Rotating to Linear Motion Magnetic Converter for Short-Distance Transport Applications

2021

View full text Add to dashboard Cite

This paper discusses some design issues of a magnetic rotating to linear motion converter (RLMC), suitable for the propulsion system of a short-distance low-capacity vehicle. It basically operates like a magnetic rack, which executes the contactless conversion of the motor torque into a propulsion thrust, deriving from the interaction of on-board permanent magnet (PM) modules and stationary ferromagnetic steel pieces. A design procedure is set up that deals with both the PM module arrangement and the geometric shape of the steel pieces to optimize different performance aspects. A simplified modeling based on 2D transient finite element analyses is carried out to determine the thrust profile and the RLMC losses, which are essential to assess its practical feasibility. Finally, the characteristics as functions of the load angle and speed are determined to enable the prediction of the dynamic power exchange and then of the net energy demand useful to size the on-board source.

show abstract

Energy efficiency of ropeways: a model-based analysis

Cited by 6 publications

References 17 publications

Investigating the relation of GDP per capita and corruption index

Investigating the relation of GDP per capita and corruption index

Triple bottom line and corporate social responsibility performance indicators for Russian companies

Design Issues of a Rotating to Linear Motion Magnetic Converter for Short-Distance Transport Applications

Contact Info

Product

Resources

About