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      • The Basis of Carrier’s Liability: from Roman Law to the Rotterdam Rules

        ( Caslav Pejovic ) 고려대학교 법학연구원 2017 The Asian Business Lawyer Vol.20 No.-

        This paper addresses an issue that has been neglected in the theory of maritime law: the historic origin of the system of carrier’s liability in carriage by sea. The paper tries to reveals the historic background of the liability regime of the carrier by following development of this regime from Roman law through the Middle Ages, until the modern times. The paper also tries to uncover how the concept of seaworthiness was introduced in the system of carrier’s liability. The text also examines the modern legal regime of the carrier’s liability system, how was it influenced and to what extent it deviated from the historical roots. Finally, the text will attempt to draw lessons from historical development of the rules governing the carrier’s liability in order to provide a broader perspective of mechanisms of maritime law development. The paper may be of particular interest to the scholars who are interested in the history of maritime law, as well to those who have interest in comparative maritime law.

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        Pumped-Hydro Storages are Balancing Electric Energy Production of Wind and Solar Reducing Average Costs and Pollution

        Aleksandar Gajic,Vladimir Stevanovic,Stan Pejovic 한국유체기계학회 2019 International journal of fluid machinery and syste Vol.12 No.1

        The new world energy policy is influenced by climate changes, narrow range of operation of Thermal Power Plants, potential risks of Nuclear Power Plants and limited resources of oil, gas and coal. Taking into account that renewable energy, solar and wind power particularly are very dependent on the climate, Hydro Power takes a new role in energy systems. Electricity conversion and storage in periods of lower consumption and electricity production from the stored energy in periods of higher demand or reduced production, are crucial for the maintenance of stable and efficient electrical system. This requirement has especially strengthened nowadays due to the expansion of integration of new wind and solar plants. These renewable sources are characterized with inherent intermittent production both in daily periods and periods of several days, weeks or even months. A number of technologies might be considered for the electricity conversion and storage, but the only nature and high capacity available technology is based on the pumped storage plants. This article studies the potential of the pumped storage plants as the effective and economically competitive technology for the storage of wind, solar, run-of-river and other environmentally friendly energies. Nuclear and coal fired plants can change power output to achieve demand but only at the price of extremely high maintenance cost. In addition, natural gas generators contribute to climate change and pollution only slightly less than coal. The pumped storage method is the most common storage system in the electricity sector. It is traditionally dependent on natural conditions, usually making use of rivers or lakes. However, some innovative methods such as the use of the sea as the lower reservoir, or a proposal to use a surface reservoir as the upper reservoir and an underground reservoir as the lower have emerged. Analyses indicate that there is a strong economic incentive for further investment in pumped-storage installations when other hydro storages and sites are not available.

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        Seismic evaluation of isolated skewed bridges using fragility function methodology

        M. Bayat,F. Daneshjoo,N. Nisticò,J. Pejovic 사단법인 한국계산역학회 2017 Computers and Concrete, An International Journal Vol.20 No.4

        A methodology, based on fragility functions, is proposed to evaluate the seismic performance of seismic isolated 45° skewed concrete bridge: 1) twelve types of seismic isolation devices are considered based on two different design parameters 2) fragility functions of a three-span bridge with and without seismic isolation devices are analytically evaluated based on 3D nonlinear incremental dynamic analyses which seismic input consists of 20 selected ground motions. The optimum combinations of isolation device design parameters are identified comparing, for different limit states, the performance of 1) the Seismic Isolated Bridges (SIB) and 2) Not Seismic Isolated Bridge (NSIB) designed according to the AASHTO standards.

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