12,376 research outputs found
Carleson Measures for the Drury-Arveson Hardy space and other Besov-Sobolev spaces on Complex Balls
We characterize the Carleson measures for the Drury-Arveson Hardy space and
other Hilbert spaces of analytic functions of several complex variables. This
provides sharp estimates for Drury's generalization of Von Neumann's
inequality. The characterization is in terms of a geometric condition, the
"split tree condition", which reflects the nonisotropic geometry underlying the
Drury-Arveson Hardy space
The characterization of the Carleson measures for analytic Besov spaces: a simple proof
We give a simple proof of the characterization of the Carleson measures for
the weighted analytic Besov spaces. Such characterization provides some
information on the radial variation of an analytic Besov function.Comment: 12 page
Generation of long time creep data of refractory alloys at elevated temperatures Eleventh quarterly report, 26 Dec. 1965 - 26 Mar. 1966
Creep tests of arc-cast and vapor deposited tungsten, molybdenum alloys, niobium, and tantalum base alloys for use in advanced power system
Generation of long time creep data on refractory alloys at elevated temperatures eighth quarterly report
Creep resistance of refractory alloys at elevated temperatures under ultrahigh vacuum condition
Closed-loop Dynamics of In-core Thermionic Reactor Systems
Using a point model of an in-core thermionic converter, alternative schemes for providing closed loop reactor control were investigated. It was found that schemes based on variable gain power regulation buffers which use the reactor current as the control variable provide complete protection from thermionic burnout and also provide a virtually constant voltage to the user. A side benefit is that the emitter temperature transients are small-even for a complete electric load drop the emitter temperature transient is less than 100 deg K. The current regulation scheme was selected for further study with a distributed parameter model which was developed to account for variations in thermionic and heat transfer properties along the length of a cylindrical converter. It was found that even though the emitter temperature distribution is about 200 deg K along the converter length, the dynamic properties are unchanged when using the current control scheme
Generation of long time creep data on refractory alloys at elevated temperatures Twelfth quarterly report, 26 Mar. - 26 Jun. 1966
Long time creep data on refractory alloys at high temperature
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Coping styles associated with post-traumatic stress and depression symptoms following childbirth in croatian women
Childbirth is a normative event in a woman's life and is considered as a positive event. However, one in three women perceive childbirth as a physical threat to themselves or their new-born and 3% of women develop posttraumatic stress disorder (PTSD) following childbirth. Poor coping strategies have been associated with PTSD following childbirth. However, previous studies mainly utilised unidimensional measures of coping strategies, therefore, it remains to be investigated which specific dimensions of coping are more predictive of PTSD after childbirth. The aims of this study were to explore whether women in Croatia report PTSD symptoms following childbirth, and how different coping styles were related to PTSD and depression symptoms. Women (N = 160) who gave birth in the last two years, completed an online questionnaire measuring PTSD symptoms (Impact of Event Scale – IES), postnatal depression symptoms (Edinburgh Postnatal Depression Scale – EPDS) and coping styles (Brief Cope). In this sample, 1.9% reported severe PTSD symptoms following childbirth and 21.9% reported depression symptoms. Many women (66.7%) with PTSD symptoms reported depression symptoms. On the other hand, 28.6% of women with depression symptoms also reported PTSD symptoms, showing that there is a higher co-morbidity of PTSD and depression than vice versa. Avoidant coping styles, specifically, denial and self-blame were positively correlated with both PTSD and depression symptoms. Moreover, of avoidant coping styles, behavioural disengagement was positively correlated with PTSD symptoms only, while self-distraction was positively correlated with depression symptoms only. Also, lower levels of planning and higher levels of emotional support were related to higher levels of depression. However, after controlling for postnatal psychopathology symptoms, coping styles were not significant predictors of PTSD symptoms, but self-blame was a significant predictor of depression symptoms. Psychopathological symptoms following childbirth are reported by Croatian women and are related to coping styles. The avoidant coping style, self-blame, is particularly associated with depression symptoms. Future studies should explore predictors of postpartum PTSD in Croatian women in more representative samples during pregnancy and with the follow-up after childbirth. Also, screening for postnatal psychopathological symptoms should be performed both for depression and PTSD symptoms
A computer graphics program for general finite element analyses
Documentation for a computer graphics program for displays from general finite element analyses is presented. A general description of display options and detailed user instructions are given. Several plots made in structural, thermal and fluid finite element analyses are included to illustrate program options. Sample data files are given to illustrate use of the program
Generation of long time creep data on refractory alloys at elevated temperatures Quarterly report, 26 Oct. - 26 Dec. 1966
Long-time creep data on refractory metal alloys for advanced space power system
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