Efficiency of quantum controlled non-Markovian thermalization

We study optimal control strategies to optimize the relaxation rate towards the fixed point of a quantum system in the presence of a non-Markovian dissipative bath. Contrary to naive expectations that suggest that memory effects might be exploited to improve optimal control effectiveness, non-Markovian effects influence the optimal strategy in a non trivial way: we present a necessary condition to be satisfied so that the effectiveness of optimal control is enhanced by non-Markovianity subject to suitable unitary controls. For illustration, we specialize our findings for the case of the dynamics of single qubit amplitude damping channels. The optimal control strategy presented here can be used to implement optimal cooling processes in quantum technologies and may have implications in quantum thermodynamics when assessing the efficiency of thermal micro-machines.Comment: 7 pages, 3 figure

Wind Powering America Initiative: The Wind and Water Power Program (WWPP)

The U.S. Department of Energy\u27s Wind Powering America initiative engages in technology market acceptance, barrier reduction, and technology deployment support activities. This fact sheet outlines ways in which the Wind Powering America team works to reduce barriers to appropriate wind energy deployment, primarily by focusing on six program areas: workforce development, communications and outreach, stakeholder analysis and resource assessment, wind technology technical support, wind power for Native Americans, and federal sector support and collaboration

Hearing on DWP Proposal on Toxic Stripping Towers

The Impact on the Health of Area Residents of A Toxic Water Stripping Tower Proposed For A North Hollywood Residential District

Analysis the Efficiency and Productivity Measurement of PT Mariana Bahagia Shipyard using OMAX Method

The progress of the maritime industry, particularly in ship construction projects such as ship building or ship manufacture, will continue to expand throughout period. Productivity and profitability criterion for evaluating the success rate of a dock and shipyard's manufacturing process, whether in ship repair or new construction. The OMAX productivity measurement method will be utilized to calculate the productivity rate in this research on PT. Bahagia Mariana Shipyard. OMAX is a method for displaying a certain performance level by combining a production indicator with a weighing procedure to produce a complete achievement indicator. According to the findings of this study, the elements that influence productivity are material man-hour machine usage workforce usage effective work-hour actual work-hour and employee absence rate. Efforts to boost productivity may be made by focusing on productivity factors that have a high priority, with each priority determined by the weight of each productivity component. Productivity is improved by adjusting the productivity factor ratio

Measuring the Efficiency of Pesantren Cooperatives: Evidence in Indonesia

The Cooperative (Koperasi) as a non-Bank financial institution has the purpose of improving the welfare of its members as Koperasi Hidmat and the staffs of Latifah Mubarokiyah Koperasi Ponses Suryalaya that have been since decades ago. Over time, the ideal cooperative can show a significant development and increase the welfare of its members. This study aims to determine the efficiency of cooperative as a benchmark, because by known the performance value of a cooperation, it will known the weeknesses and advantages so that it can be improved the weaknesses and maintain the advantages.The method used is apply Data Envelopment Analysis (DEA). Inputs used from principal savings, mandatory savings, and fixed assets while the output used from savings in the cooperative, savings in other cooperative and SHU. As for result of this research indicates there are 9 perfect efficient DMUs (100 %) and inefficient DMU is 11 DMUs, consisting of 7 (IRS conditions) and 4 (DRS condition). The most inefficient cooperative is Koperasi Hidmat (2014) of 30.66% efficiency level.Kopkar IAILM is able to maintain its grade efficiency level from 2009 to 2015 when compared to other DMUs cooperatives in the observation, except in 2014. The calculation of efficiency level in this research is relative and it is not absolute, so that it is possible when the cooperative sample is added or the observation year is expanded, so it will get different result. The necessity of any cooperative or BMT based on Pondok Pesantren to make annual financial statements in order to increase accountability and transparency of fund management