9,200 research outputs found
Interview with Frances Lander Spain - OH 081
No full textIn her April 26, 1980 interview with Arnold M. Shankman, the 1925 graduate
of Winthrop University, Frances Lander Spain, discusses her life and accomplishments.
Spain goes into detail about her academic career prior to, during, and after her years at Winthrop, Emory University, and the University of Chicago. She discusses her work in the American Library Association, her library work in Thailand, as well as the contributions she made to the New York Public Library. In addition, Spain recounts more personal aspects of her life pertaining to her mother, husband-who had passed away by the time this interview took place, and the lives of her children.https://digitalcommons.winthrop.edu/oralhistoryprogram/1225/thumbnail.jp
7000m Lander Design for Hadal Research
No full textBiology and ecology research in hadal zone (6000- 11000 m) has been a renewed interest recently. With advances in engineering technology, breaking the knowledge gap of hadal science becomes reality. Free-fall vehicle also known as “Lander” has been widely applied in marine investigation for decades. Achievements made in hadal field with landers have vastly encouraged scientists to implement further progress. This paper describes the design of a 7000-meter lander, which mainly focused on hadal biology and ecology research. Effort for oil filled compensation approach of powering and control subsystem has been conducted, which increases the reliability of pressure resistance and seal while reducing the size and weight of the sealed housing. Results of the high pressure test demonstrate the proposed approach is practical and reliable
Lander, R M (Raymond Malcolm), WX11228
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/398180Surname: LANDER. Given Name(s) or Initials: R M (RAYMOND MALCOLM). Military Service Number or Last Known Location: WX11228. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 16357.237192
Item: [2016.0049.30473] "Lander, R M (Raymond Malcolm), WX11228
The inside-out view on neutron-star magnetospheres
No full textWe construct hydromagnetic neutron star equilibria which allow for a non-zero electric current distribution in the exterior. The novelty of our models is that the neutron star's interior field is in equilibrium with its magnetosphere, thus bridging the gap between previous work in this area, which either solves for the interior assuming a vacuum exterior or solves for the magnetosphere without modelling the star itself. We consider only non-rotating stars in this work, so our solutions are most immediately applicable to slowly rotating systems such as magnetars. Nonetheless, we demonstrate that magnetospheres qualitatively resembling those expected for both magnetars and pulsars are possible within our framework. The ‘inside-out’ approach taken in this paper should be more generally applicable to rotating neutron stars, where the interior and exterior regions are again not independent but evolve together
Lander, Ella M.
No full textBerton Lander - husbandhttps://stars.library.ucf.edu/cfm-ch-memoranda-1941/1385/thumbnail.jp
Orbit determination of Chang'E-3 and positioning of the lander and the rover
No full textChang'E-3 landed on the east of Sinus Iridum area on December 14, 2013, performing China's first successful soft landing on the lunar surface. We present the results on precision orbit determination and positioning of the lander and the rover. We describe the data, modeling, and methods used to achieve position knowledge over the period December 2-21, 2014. In addition to the radiometric X-band range and Doppler tracking data, delta differential one-way ranging data are also used in the calculation, which show that they strongly improve the accuracy of the orbit reconstruction. Total position overlap differences are about 20 and 30 m for the 100 km x 100 km and 100 kmx 15 km lunar orbit, respectively, increased by similar to 50 % with respect to CE-2 and at the same level as other lunar spacecrafts of recent era such as SELENE and lunar reconnaissance orbiter (LRO). The position error of the soft landing trajectory is less than 100 m. A kinematic statistical method is applied to determine the position of the lander and relative position of the rover with respect to the lander. The position difference of the lander is better than 50 m compared to LRO photograph result. Compared with the delta very long baseline interferometry (VLBI) group delay between the lander and the rover, the delta VLBI phase delay can improve the relative position of the rover from similar to 1,000 to similar to 1 m
RSS James Clark Ross Cruise 221, 26 May – 05 Jun 2010. PAP observatory development
No full textThis very short cruise was primarily to deploy a novel moored observatory at PAP (NE Atlantic), a long term study site at which a variety of observations have been made over the past 20 years with increasing levels of intensity and sophistication. This new design was in collaboration with the UK Met Office.In addition to this, a benthic lander was to be deployed which would transmit data by an acoustic link to the surface buoy and hence to land by satellite link. Unfortunately this was lost due to an imploding sphere.A number of equipment trials were also carried out to good effect. In addition studies were made on the effects of high CO2 of calcifying phytoplankton. A team of photographers were present to in order to increase public awareness of observational oceanography and numerous interviews were completed. In addition a daily web diary was maintained by the EuroSITES outreach team
Lander Propulsion Overview and Technology Requirements Discussion
No full textThis viewgraph presentation reviews the lunar lander propulsion requirements. It includes discussion on: Lander Project Overview, Project Evolution/Design Cycles, Lunar Architecture & Lander Reference Missions, Lander Concept Configurations, Descent and Ascent propulsion reviews, and a review of the technology requirements
Magnetic fields in axisymmetric neutron stars
No full textWe derive general equations for axisymmetric Newtonian magnetohydrodynamics and use these as the basis of a code for calculating equilibrium configurations of rotating magnetized neutron stars in a stationary state. We investigate the field configurations that result from our formalism, which include purely poloidal, purely toroidal and mixed fields. For the mixed-field formalism, the toroidal component appears to be bounded at less than 7 per cent. We calculate distortions induced both by magnetic fields and by rotation. From our non-linear work, we are able to look at the realm of validity of perturbative work: we find for our results that perturbative-regime formulae for magnetic distortions agree to within 10 per cent of the non-linear results if the ellipticity is less than 0.15 or the average field strength is less than 10^17 G. We also consider how magnetized equilibrium structures vary for different polytropic indices
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