http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Vadim V. Ponkratov (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Marina V. Vasiljeva,Vadim V. Ponkratov,Nikolay V. Kuznetsov,Maksim S. Maramygin,Irina V. Osinovskaya 대한산업공학회 2019 Industrial Engineeering & Management Systems Vol.18 No.4
This paper reports a methodological approach to quantitatively assess the effectiveness of the Blue Ocean Strategy inthe Russian steel market that makes the competition irrelevant. Based on the simulation method, qualitative and quantitative dependencies are determined between firm economic performance and the implementation of the Blue Ocean,Red Ocean, and Monopoly strategies. It is shown by the example of the Russian steel market that Blue Ocean Strategyenables to get a significantly higher level of profit for the enterprise as compared to the implementation of the RedOcean Strategy, even in a monopolistic market. This is provided by creating innovative value, manifested in the minimization of social losses in the market, ensuring the possibility of establishing a higher market value while reducingproduction costs. The results of the paper may serve as an aid to the effective development of small and medium-sizedbusinesses by providing a sound quantitative framework to quantify the value of innovation. This article gives an insight into how firms can create blue oceans of uncontested market space to prosper in the future, providing an opportunity to evaluate the effectiveness of the chosen strategy to minimize risks.
-
Investigating the Competitiveness of the Russian Oilfield Services Market
Alexander N. Semin,Vadim V. Ponkratov,Alexander A. Sokolov,Olga V. Lenkova,Andrey S. Pozdnyaev 대한산업공학회 2019 Industrial Engineeering & Management Systems Vol.18 No.3
Amidst the worldwide transformation of energy markets, competition in the global oil services sector has intensified, exposing the Russian oilfield services market to many challenges and risks. This study determines the ranking of the Russian oil services market at the global level. We employ expert assessments to identify relevant factors and indicators for evaluating competitive advantages in the oilfield industry. Using additive design and Saaty’s hierarchy analysis method, we determine the hierarchical structure of the factors influencing the development of oil services on the overall level of competitiveness of the oil services market. Using the integral analysis method, we develop a universal model for assessing competitiveness in the oilfield industry. Application of the model reveals that Russia ranked eighth among its main global competitors in 2017, and ranked ninth in terms of development growth rates for the period from 2007 to 2017. Practical implementation of the proposed measures can help monitor and address the major detrimental factors (i.e., decline in investments, high taxation, primitive technology, and high proportion of foreign service providers) affecting the development of Russia’s oilfield services market, the elimination of which may raise Russia’s status as an energy leader.
-
Ali Asghar Moslemi Beirami,Vadim V. Ponkratov,Amir Ebrahim Akbari Baghal,Barno Abdullaeva,Mohammadali Nasrabadi 국제구조공학회 2023 Structural Engineering and Mechanics, An Int'l Jou Vol.88 No.2
Cost-effective high precision hybrid elements are presented in a hierarchical form for dynamic analysis of plates. The costs associated with controlling the vibrations of ferromagnetic plates can be minimized by adequate determination of the amount of electric current and magnetic field. In the present study, the effect of magnetic field and electric current on nonlinear vibrations of ferromagnetic plates is investigated. The general form of Lorentz forces and Maxwell's equations have been considered for the first time to present new relationships for electromagnetic interaction forces with ferromagnetic plates. In order to derive the governing nonlinear differential equations, the theory of third-order shear deformations of three-dimensional plates has been applied along with the von Kármán large deformation strain-displacement relations. Afterward, the nonlinear equations are discretized using the Galerkin method, and the effect of various parameters is investigated. According to the results, electric current and magnetic field have different effects on the equivalent stiffness of ferromagnetic plates. As the electric current increases and the magnetic field decreases, the equivalent stiffness of the plate decreases. This is a phenomenon reported here for the first time. Furthermore, the magnetic field has a more significant effect on the steady-state deflection of the plate compared to the electric current. Increasing the magnetic field and electric current by 10-times results in a reduction of about 350% and an increase of 3.8% in the maximum steady-state deflection, respectively. Furthermore, the nonlinear frequency decreases as time passes, and these changes become more intense as the magnetic field increases.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
