56,714 research outputs found
The application of high temperature superconducting materials to power switches
Superconducting switches may nd application in superconducting magnet systems that
require energy extraction. Such superconducting switches could be bypass-switches that
are operated in conjunction with a parallel resistor or dump-switches where all of the
energy is dissipated in the switch itself. Bypass-switches are more suited to higher energy
circuits as a portion of the energy can be dissipated in the external dump resistor. Dump-switches
require less material and triggering energy as a lower switch resistance is needed
to achieve the required total dump resistance.Both superconducting bypass-switches and superconducting dump-switches can be thermally
activated. Switching times that are comparable to those obtained with mechanical
bypass-switch systems can be achieved using a co-wound heater that is powered by a capacitor
discharge. Switches that have fast thermal diffusion times through the insulation
can be modelled as a lumped system whereas those with slow thermal diffusion times were
modelled with the full heat diffusion equation.Superconducting switches can be formed of either high temperature superconductors
(HTS) or low temperature superconductors (LTS). Switches based on HTS materials allow
operation at higher temperatures where the cost of cooling is less. Extracting the magnet
energy and depositing the heater energy at higher temperatures will also reduce the load on
the overall cryogenic system during switching and energy extraction. For magnet circuits
that are based on high temperature superconductors the switch must also be formed of
HTS material. Due to the approximately T3 dependence of specific heat capacity, switches
that operate at higher temperatures have slower heat diffusion times and require higher
triggering energies than those operating at low temperature. HTS based dump-switches
and HTS based bypass-switches were tested in liquid nitrogen to show that the required
switching time could be achieved at these high temperatures.The design and optimisation of superconducting switches that were formed of various
superconducting materials were performed for example magnet circuits to provide reference
designs of switches. These example circuits were based on selected Large Hadron Collider
600 A circuits that had a stored energy of 5.5 kJ. Superconducting switches may also nd
application in magnet circuits with higher transport currents and higher energies. The
scaling and suitability of the reference designs to higher energy circuits was also described
Two new species and one new variety of Mimosa sect. Habbasia (Leguminosae: Mimosoideae) from central Brazil
Two new species, Mimosa myrioglandulosa V. F. Dutra & F. C. P. Garcia and M. trinerva V. F. Dutra & F. C. P. Garcia, and one new variety M. foliolosa Benth. var. grandibractea V. F. Dutra & F. C. P. Garcia, of Mimosa sect. Habbasia (Leguminosae, Mimosoideae) from the rocky fields of the state of Minas Gerais, Brazil, are described and illustrated. M. myrioglandulosa resembles M. maguirei Barneby, but differs because it has stems with sessile glands. M. trinerva is vegetatively similar to M. albolanata Taub. var. paucipinna (Benth.) Barneby, but has corolla lobes with 2 – 3 nerves. M. foliolosa var. grandibractea is similar to M. foliolosa var. brevibractea Barneby, but has larger bracts. Discussions about the distribution, habitat, phenology, conservation status, etymology, similar species and an analytical key to morphologically related species are provided
Passive, invasive, and duplicitous: Three forms of intimate partner cyberstalking
Intimate partners are common targets of cyberstalking, yet despite the negative impact the behavior remains largely underexplored. In the present study, we explore behavioral methods adopted to cyberstalk intimate partners. Participants (N = 449, 50.1% men) recruited via Amazon's Mechanical Turk completed an online questionnaire and we assessed a range of intimate partner cyberstalking behaviors across mating contexts (i.e., short-term v long-term relationships) and goals (i.e., mate retention v mate attainment). These cyberstalking behaviors were factor analyzed (i.e., Exploratory Factor Analysis) and reduced to reveal three dimensions: Passive, invasive, and duplicitous. Both men and women largely engage in passive cyberstalking, though women perpetrated more overall, passive, and invasive intimate partner cyberstalking. Women were also likely to adopt invasive behaviors to retain a long-term mate and attain a short-term mate. We also examined associations between the Dark Tetrad traits, social motives, and cyberstalking. All Dark Tetrad traits were associated with more overall cyberstalking but demonstrated differential patterns across the three forms, substantiating a dimensional conceptualization of this online behavior. Results of the current study contribute to establishing a theoretical framework to understand perpetration of intimate partner cyberstalking, ultimately contributing to managing the potentially harmful online behavior
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
[Report to W. P. Gannaway by V. J. Brian and T. T. Wardlaw, March 9, 1964]
Criminal intelligence report addressed to Captain W. P. Gannaway of the Special Service Bureau in Dallas, Texas. The report, which was submitted by detectives V. J. Brian and T. T. Wardlaw, states that Edward Tieman and his wife were picketing the Dallas County Courthouse on March 9th, 1964. Tieman carried a sign which read "Jesus Christ and the Holy Bible everyone's hope," while his wife carried a sign which read "Psychiatry is not the hope of killers. It tries to mock God and our nation's laws.
World War I record of service survey for Robert P. Kilner, signed 8 March 1926
Questionnaire about Robert Pettes Kilner's service in World War I, 1917-1919, signed by Kilner on 8 March 1926.Questionnaire originally part of a survey of Norwich University alumni conducted by a “Norwich in the World War” committee consisting of Charles N. Barber (chairman), Carl V. Woodbury, K.R.B. Flint, and Gustaf A. Nelson. Data from these questionnaires may have been used in a chapter of "Vermont in the world war, 1917-1919" by Harold P. Sheldon (1928)
World War I record of service survey for George P. Lewis, signed 8 March 1926.
Questionnaire about George Parker Lewis' service in World War I, 1917-1919, signed by Lewis on 8 March 1926.Questionnaire originally part of a survey of Norwich University alumni conducted by a “Norwich in the World War” committee consisting of Charles N. Barber (chairman), Carl V. Woodbury, K.R.B. Flint, and Gustaf A. Nelson. Data from these questionnaires may have been used in a chapter of "Vermont in the world war, 1917-1919" by Harold P. Sheldon (1928)
World War I record of service survey for James P. Liston, signed 9 March 1926.
Questionnaire about James Philip Liston's service in World War I, 1917-1919, signed by Liston on 9 March 1926.Questionnaire originally part of a survey of Norwich University alumni conducted by a “Norwich in the World War” committee consisting of Charles N. Barber (chairman), Carl V. Woodbury, K.R.B. Flint, and Gustaf A. Nelson. Data from these questionnaires may have been used in a chapter of "Vermont in the world war, 1917-1919" by Harold P. Sheldon (1928)
World War I record of service survey for Roscoe P. Lynde, signed 9 March 1926.
Questionnaire about Roscoe Perrin Lynde's service in World War I, 1917-1919, signed by Lynde on 9 March 1926.Questionnaire originally part of a survey of Norwich University alumni conducted by a “Norwich in the World War” committee consisting of Charles N. Barber (chairman), Carl V. Woodbury, K.R.B. Flint, and Gustaf A. Nelson. Data from these questionnaires may have been used in a chapter of "Vermont in the world war, 1917-1919" by Harold P. Sheldon (1928)
The Sunflower, v.126, no.25 (March 10, 2022)
Article(s): Basketball tournament preview -- Men’s Basketball looks to ride momentum into Fort Worth -- Students share opinions about new mask rules on campus -- Student Fees Committee proposes 2.7% increase -- Students escape midterm stress with virtual reality and laser tag at Gamefest -- Drink of the Week: pistachio oat milk frappuccino with sweet cream foam -- The Batman: Beautiful but disrespectful of the Batman legacy -- Wichita-based artist talks love and loss with current exhibition -- Seventh annual diverse women’s summit brings in over 100 virtual participants -- Charging for alternative dairy products is an inconvenience -- City 101: Valuable information I learned when traveling -- Street speak: What are your thoughts about WSU lifting the mask mandate? -- Shocker Hall door guards are cheap substitute for real security -- Student opinion of the week -- Spring cleaning -- Men’s Tennis snaps losing streak with 7-0 sweep in outdoor home opener -- Softball splits four games in Nebraska -- Sports in briefs -- ‘I’m not done yet’: Vann battles back from cancer diagnosis -- Baseball takes home opener over ORU, extends winning streak to four games -- Bryan prepares for NCAA Championships -- 2022 basketball preview -- Pohto blossoms in debut season -- Council brings offensive spark off the bench during freshman season -- Shockers close out regular season with win over ECU -- Women’s Basketball’s season wraps up with loss to Tulsa -- Shockers earn AAC accolades before postseason berth -- ‘I don’t think anybody is going on that bus to play one game:’ Shockers feel prepared to take on conference tournament competition -- Path to the championship -- Shockers enter AAC Tournament as the No. 7 seed -- Momentum from page 1Photograph(s): Before the game against the South Florida Bulls on Feb. 12, sophomore Clarence Jackson watches the board before the starting five are announced. p. 1 -- Byran Perez-Moreno, pre-dental freshman, tells The Sunflower on March 9 that he thinks WSU made the right move removing the mask mandate, allowing stu- dents to choose for themselves. p. 1 -- John Kirk, fine arts representative, looks at the student fees binder during student fees deliberations last week. p. 2 -- Starbucks features the pistachio frappuccino, a nutty spring drink which is able to be made hot, iced, or blended and with milk substitutes. p. 3 -- Jamey Marshall plays laser tag. The event was hosted by SAC on March 5 in the RSC. p. 3 -- Caitlyn Sherman plays Jenga. The event was hosted by SAC on March 5 in the RSC. p. 3 -- Caroline Ruden and Chloe Ciecko play hungry hippos.The event was hosted by SAC on 5 March 5 in the RSC. p. 3 -- Radeef Karim shoots his gun in Laser Tag. The event was hosted by SAC on March 5 in the RSC. p. 3 -- Batman promotional picture. p. 3 -- Wichita-based artist, Ann Resnick talked at the Ulrich Museum’s Artist Talk series on Tuesday March 8, featuring her current exhibition “Chapter and Verse.”p. 3 -- Portrait of Jacinda Hall, p. 4 -- Brett Foraker pours milk to make coffee at Fairmount Coffee Company on March 8th. p. 4 -- Portrait of Emmie Boese, opinion editor. p. 4 -- Design director Thy Vo, Editor-in-chief Lindsay Smith, and Opinion editor Emmie Boese at the Hollywood Walk of Fame. p. 4 -- Street speak portraits of Eric Son, Christian Munoz, Ethan Le, Chadrack Kamba, and Leonardo Sandino. p. 4 -- Portrait of Allison Campbell, columnist. p. 4 -- A connecting hallway between the two buildings that comprise Shocker Hall. p. 4 -- Portrait of student Justice Murray, p. 4 -- Nicolas Acevedo celebrates after a point during the match against Omaha on March 3 at the Coleman Tennis Complex. The Chile native picked up his first win at No.1 singles since Feb. 12 against Nebraska. p. 5 -- Nicolas Acevedo hits the ball during a point during the match against Oma- ha on March 3 at the Coleman Tennis Complex. p. 5 -- Jackie Lin serves the ball during the match against Omaha on March 3 at the Coleman Tennis Complex. p. 5 -- Alex Richards celebrates with Kristof Minarik after a point during the match against Omaha on March 3 at the Coleman Tennis Complex. The duo lost their first doubles match since Jan. 29. p. 5 -- Junior Nate Vann reflects on his journey of finding a tumor on his rib at Cessna Stadium on March 3. p. 6 -- Portrait of senior Michael Bryan. p 6 -- Portrait of WSU basketball player. p. 7 -- Freshman Kenny Pohto goes up for a lay-up on the East Carolina Pirates on March 5. p. 8 -- Freshman Ricky Council IV earns two points for the Shockers with a slam dunk on East Carolina on March 5. p. 8 -- Freshman Ricky Council IV shoots a three-pointer against Memphis on Jan. 1 inside Charles Koch Arena. p. 8 -- Freshman Ricky Council IV attempts to shoot on the East Carolina Pirates on March 5. p. 9 -- Senior Mariah McCully goes up for a two-pointer on Tulane on March 2. McCully scored 19 points during the game. p 9 -- Portrait of Tyson Etienne. p. 10 -- Portrait of Dexter Dennis. p. 1 -- Portrait of Ricky Council IV. p. 10 -- Junior Dexter Dennis looks to pass during the game against Tulsa on Feb. 1 inside Charles Koch Arena. p. 10 -- Wichita State sophomore Tyson Etienne communicates with a teammate during the last year’s AAC Tournament against USF at Dickies Arena on March 12. p. 1
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