1.2 CCD Operations, Performance Parameters, and CCD . Transfer Curves . Low-light-level CCD performance parameters are grouped into four primary CCD operations: 1) Charge Generation (e.g. QE), 2) Charge Collection (e.g. MTF), 3) Charge Transfer (e.g. CTE), and 4) Charge Detection (e.g. Read Noise). ... Four Basic CCD Operations and Associated Performance Parameters and CCD Transfer Curves Used to Measure Performance . ... Charge Transfer Performance Parameters and CCD Transfer Curve Tests . ...

... The WFPC2 CCDs have a small b ut significant charge transfer efficiency (CTE) problem which causes some signal to be lost when charge is transferred down the chip during readout. This has the effect of making objects at higher row numbers (more charge transfers) appear fainter than they would if they were at low row numbers. The effect depends on the temperature of the CCDs. ... It is also possible that proportional losses for fainter stars, at least with no background, may be larger. ...

... title='Transfer - Quiksilver - Quiksilver' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> Мужской кошелек от Quiksilver - новинка из коллекции "Весна 2015". Характеристики: полиуретановый внешний слой и нейлоновая подкладка, принт из линейки бордшортов, металлические клепки Quiksilver. Цвет: синий . ... Пол: Мужской . ... Костюм спортивный adidas Performance. ... Линейка: Performance . ... Size: 42 RUS,44 RUS,46 RUS,48 RUS . ... Пол: Женский . ...

Next: Future Work Up: CCD Scientific Performance Previous: Modes of Operation . ... However, the first experiments with Co-60 irradiation showed loss of charge transfer performance at doses of 10krads [Lumb and Holland 1988b]. ... These studies showed that the charge transfer degradation was a more severe problem than conventional integrated circuit damage mechanisms. ... Another manifestation of radiation damage is that of dark current spike generation. ...

... scattered light in flats less than 0.5% across 5' field of view . scattered light in flats less than 0.5% across entire field . ... no greater than 10% across field, and calibrateable to better than 1%. no greater than 5% across field, and calibrateable to better than 0.5%. ... provide unvignetted illumination across detector with new SDSS filter set . ... throughput stable to better than 0.5% over course of a night. throughput stable to better than 5% over thermal cycling and seasonal variation . ...

... The SIRTF Science Center is developing two Web-based tools that will be used during operations. One tool is for Quality Analysis. ... The basic design requirements for the QA tool are (1) that it provide an easy way of looking at all the data, observation by observation, and (2) that it provide an easy way to specify status and comments for each observation. ... The data accessed by this tool consists of meta-data in the central database as well as the actual data files in the archive. ...

iCharge Transfer Efficiency is a measure of the percentage of electrons which are lost at each packet switching location. A 1000x1000 CCD would undergo 2000 such transfers upon readout. AT 98% CTE almost all the charge would be lost by the 2000th transfer. Consider a packet that contains 100,000 electrons, after 10 transfers there would be 18% packet loss and after 35 transfers there would be only 50% of the remaining charge and you still have another 1965 transfers to go!

... Hardware Platform Hardware Platform IBM Cyclops System: · Very Dense Multi- Node HPC system · 3D grid configuration · Max size 24X24X24 nodes · Each node consisting of one multi-processor Cyclops chip · Each Cyclops Device contains 80 Dual Thread Unit Processing Elements, Dual ALU single FPMAC unit The Cyclops Processor Device Simplified Cyclops Diagram Cyclops Capabilities · 500 MHz system clock frequency · 80 GFLOPS peak ...

... This file is intended to provide a basic functional overview of the EISA Bus, so that hobbyists and amateurs can design their own EISA compatible cards. ... EISA is upwardly compatible, which means that cards originally designed for the 8 bit IBM bus (often referred to as the XT bus) and cards designed for the 16 bit bus (referred to as the AT bus, and also as the ISA bus), will work in an EISA slot. ... This is used by the slave device to inform the bus master that it is capable of 16 bit transfers...

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

NASA JOHNSON SPACE CENTER ORAL HISTORY PROJECT BIOGRAPHICAL DATA SHEET NAME: Dorothy B. Lee O RAL H ISTORY: 10 November 1999 EDUCATIONAL BACKGROUND: BA in Mathematics, Randolph-Macon Women's College, Lynchburg, Virginia, 1948 PRE-NASA CAREER: NACA Langley Aeronautical Laboratory, Hampton, Virginia Mathematician (1948-1953) Senior Mathematician (1953-1956) Aerotechnologist, Heat Transfer (1956-1958) NASA CAREER: NASA Charles B. Rumsey, Dorothy B. Lee, and Ronald Kolenkiewicz. ...

Improvement and New Results of the Laser Time Transfer on MEO satellites Meng Wendong, Zhang Haifeng, Yang Huafeng, Chen Wanzhen, Wang Jie, Ivan Prochazka , Zhang Zhongping Shanghai Observatory, CAS China Academy of Space Technology Czech Technical University Goals of Laser Time Transfer ( LTT ) · Evaluate the performance of the space rubidium clocks with respective to the ground hydrogen maser, dedicated for the Compass ...

Flexible frame grabbing and high speed image processing . for PCI bus PCs . ... Fully software compatible with XPG-1000 Power Grabber. ... The FPG-44 Power Grabber product line is a family of imaging boards and software offering flexible frame grabbing and high speed image processing for PCI bus PCs. ... The FPG-44 will interface with any analog/digital camera or sensor at data rates up to 32 Mbytes/Sec. ... The FPG-44 is a flexible frame grabber and image processing board for PCI and ISA bus PCs. ...

... An explanation of the general VLT control system architecture is given. Two generations of ESO VLT CCD Controller systems (ACE and FIERA) are described, and a comparison between them is presented, considering both the architecture and the performances. 1) The ESO VLT Control System . ... two . ... To achieve the readout requirements of the new generation CCD devices the LCU was replaced with a SPARC CPU, connected to the CCD Electronics through a 150 MBytes/sec full duplex optical fiber link. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ... Land Launch . ... The structure of the Block DM-SLB used in the Zenit-3SLB launch vehicle in many respects is similar to the Block DM-SL structure of the Sea Launch project and it is its adapted option for the Land Launch Program. ... Contribution of RSC Energia to the Russian Rocket-Space Technology ...

NCR 53CF94, 53CF96 FLYER INFORMATION The NCR 53CF94 and 53CF96 Fast SCSI Controllers are high-performance CMOS devices conforming to ANSI standards X3.131-1986 (SCSI-1) and X3.131-199X (SCSI-2) for the Small Computer Systems Interface (SCSI). ... The NCR 53CF94 and 53CF96 feature 10 megabytes per second (MB/s) Fast SCSI-2 data transfers, improved single-ended SCSI operation, a 24-bit transfer counter, and enhanced SCSI-2 command functionality. ...

... You are here: start €Ё lbaops €Ё datatransfers . ... VLBI Schedule . ... Observer's Wiki . ... Transferring data from ATNF telescopes . RadioAstron data transfers . Host Setup . ... ssh access to venice.atnf.csiro.au ( ATNF Unix account) . ... In order to use globus GridFTP to push data to Pawsey via your own user account, you will need to have ssh keys set up. ... ssh to venice (using your own ident) then to the data host (one of the above machines) as vlbi to push the data over. ...

. UNIX provides utilities for transferring files and directories from one host to another. Look at the section on "Preparing files for transfer" before going on to use the file transfer utilities. Preparing files for transfer . Copying files between hosts . Transferring files .

... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

... FTP (File Transfer Protocol или "Протокол Передачи Файлов") - один из старейших протоколов в Internet и входит в его стандарты. Обмен данными в FTP проходит по TCP-каналу. ... Модель протокола . ... Управление обменом осуществляется по каналу управления в стандарте протокола TELNET. ... Команды FTP определяют параметры канала передачи данных и самого процесса передачи. ... При организации канала передачи данных последовательность действий другая, отличная от организации канала управления. ...