Hybrid Energy Transfer Research Articles

The Interactions of the Largest Subunit of RNA Polymerase II with Other Cellular Proteins: a Bioinformatic Approach

The function of a protein is governed by its interaction with other proteins inside a cell. Therefore, it is important to identify the interacting partners of a particular protein to decipher its function. The protein interaction networks are generally determined by bioinformatic as well as experimental methodologies such as yeast two hybrid, mass spectrometry, immunoprecipitation, and fluorescence resonance energy transfer assays. Here, we have analyzed bioinformatically the interactions of Rpb1p (the largest subunit of RNA Polymerase II) with other proteins in yeast, using Cytoscape software and Biogrid/Biomart database. We find that Rpb1p interacts with a large number of proteins involved in mRNA synthesis, processing, export, and other cellular processes. These results validate the application of such bioinformatic approach to determine the interactome for other cellular proteins.

Study on 1 GW class hybrid energy transfer line of hydrogen and electricity

Applicability of 1 GW class hybrid energy transfer line of hydrogen and electricity is investigated. Target distance of hybrid energy transfer line is 1000 km. Hydrogen refrigeration station is placed on every 10 km of the unit section. The rated current and withstand voltage of the dc power line are 10 kA and 100 kV, respectively. Capacity of the liquid hydrogen transportation is 100 tons per day. Transfer line consists of the superconducting (SC) cable, space for liquid hydrogen, electrical insulation layer, vacuum space for thermal insulation, and cryogenic envelopes. High Jc performance in a liquid hydrogen temperature requires for the SC cable. The MgB2 wire is one of the potential candidates for this system as well as BSCCO or YBCO tapes. To keep the liquid state of hydrogen anywhere in the unit section, the temperature and pressure of the inlet point were selected to 17 K and 0.4 MPa, respectively. When the heat leak into the liquid hydrogen was 1.0 W/m (expected value), the temperature at the outlet became 18.1 K. Total power consumption of the 10 kW class refrigerator is estimated to 660 kW. The total power consumption for the hybrid energy transfer line of 1000 km length becomes 132 MW. This value is equivalent to 13.2 % to the transport capacity of 1GW.

超電導と水素の複合エネルギーシステム ＬＨＤ型核融合発電炉による水素燃料の製造・輸送の研究

The design studies on the force-free helical-type fusion reactor (FFHR) have been carried out with collaborations between universities and the National Institute for Fusion Science in Japan. The output of the electric power was optimized to 1 GW. Co-generation of hydrogen and electricity by steam electrolysis was applied. One-hundred tons per day of liquid hydrogen and 824 MW of electricity can be produced during off-peak time. The applicability for a 1 GW-class hybrid energy transfer line of hydrogen and electricity was investigated. The target distance of the hybrid energy transfer line was 100 km. A hydrogen refrigeration station was placed at intervals of every 10 km. The rated current and withstand voltage of the DC power lines were 10 kA and 100 kV respectively. To keep the liquid state of hydrogen present throughout the unit section, the temperature and pressure of the inlet points were set to 17 K and 0.4 MPa respectively. When the heat leak into the liquid hydrogen was 1.0 W/m (expected value), the temperature at the outlet was 18.1 K. The power consumption of the 20 kW-class refrigerator was estimated to be 1.32 MW. The total power consumption for the hybrid energy transfer line of 100 km in length was 13.2 MW. This value is equivalent to 1.3% of the transport capacity of 1 GW.