Plasma focus as a pulsed power source

The plasma focus is a remarkable natural phenomena that achieves significant space-time compression of both particle and field energy. Depending on the mode of operation, about 20 percent of the bank energy can be concentrated into the kinetic energy of a thin, dense, cylindrically convergent gas shell, or into a small-diameter, high-$nu$/$gamma$ relativistic electron burst and oppositely directed ion burst. The kinetic energy of the fast ions and electrons can exceed the applied voltage by a factor of greater than 100. The different modes of energy concentration by the plasma focus are presented and discussed both in terms of their role in the direct yield of the focus and for the case of a plasma focus supplemented by various fusionable targets. (auth

Removal of Tannic Acid From Aqueous Solution by Cloud Point Extraction and Investigation of Surfactant Regeneration by Microemulsion Extraction

The aim of this work is the extraction of tannic acid (TA) with two commercial nonionic surfactants, separately: Lutensol ON 30 and Triton X-114 (TX-114).The experimental cloud point extraction results are expressed by four responses to surfactant concentration and temperature variations: extent of TA extraction (E), remaining solute (X s,w) and surfactant (X t,w) concentrations in dilute phase and volume fraction of coacervate (Φc) at equilibrium. An empirical smoothing method was used and the results are represented on three dimensional plots. In optimal conditions, the extraction extent of TA reaches 95 and 87 % using TX-114 and Lutensol ON 30, respectively. Sodium sulfate, cetyltrimethylammonium bromide (CTAB) addition and pH effect are also studied. Finally, the possibility of recycling of the surfactant is proved

Excellence in the Surface Navy

Excellence in the Surface Navy is examined, first by interviewing twenty one senior naval officers and then by going aboard six ships identified by the senior officers as being the embodiment of excellence. Chapters 1 through 4 is a summary of the indicators of excellence on which the senior officers focused. Such topics as awards, ship cleanliness, and operational performance are discussed. Chapter 5 summarizes the views of these senior officers on the means used to achieve excellence. From the shipboard interviews, it is concluded that the excellent ships possess a common set of attributes that account for their excellence. The attributes are: good ships getting better; pride in evidence at all levels; teamwork, not just a concept but a way of life; the ship in automatic; high energy level/bias towards action; presence of a common vision and shared values; as the captain, so is the ship; sailors, our most important resource; and oh yes, task accomplishment. These attributes are discussed in Chapter 6 through 15. Recommendations are made for expanding analysis of excellence in the Surface Navy and other naval communities.http://archive.org/details/excellenceinsurf00gullCommander, United States NavyLieutenant Commander, United States NavyApproved for public release; distribution is unlimited

Excellence in the Surface Navy

“Excellence in the Surface Navy” is examined, first by interviewing twenty one senior naval officers and then by going aboard six ships identified by the senior officers as being the embodiment of excellence. Indicators of excellence on which the senior officers focused, such as awards, ship cleanliness, and operational performance, are discussed. From the shipboard interviews, it is concluded that the. excellent ships possess a common set of attributes that account for their excellence. The attributes are: good ships getting better; pride in evidence at all levels; teamwork, not just a concept but a way of life; the ship in automatic; high energy level/bias towards action; presence of a common vision and shared values; as the captain, so is the ship; sailors, our most important resource; and oh yes, task accomplishment. Each attribute is discussed in detail. Included are pages of detailed summaries of interviews conducted with both senior officers and aboard the six 'excellent' ships.The work reported herein was supported with funds provided by the Naval Military Personnel Command (N-6)Approved for public release; distribution is unlimited