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PTF 17
PTF may refer to: ;Science * Palomar Transient Factory, an astronomical survey program * Pedotransfer function, a concept used in soil science * Phase transfer function, used for the optics of an imaging system ;Computing * Program temporary fix (PTF file format), an IBM locution to designate bug fixes * PlayStation Portable, a file extension for the PlayStation Portable systems * Pro Tools 7 up to Pro Tools 9 session (project) file ;Other * Pat Tillman Foundation, a scholarship and leadership nonprofit serving U.S. military veterans and military spouses * Peter Tatchell Foundation, a British human rights organization * Police Task Force The Police Tactical Unit (PTU) is a paramilitary specialist unit of the Singapore Police Force and comes under the direct command of the Special Operations Command. Based in Queenstown, it is the main anti-rioting and disaster-management unit ..., former name of the Police Tactical Unit of the Singapore Police Force * Präzisionsteilefer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palomar Transient Factory
The Palomar Transient Factory (PTF, obs. code: I41), was an astronomical survey using a wide-field survey camera designed to search for optical transient and variable sources such as variable stars, supernovae, asteroids and comets. The project completed commissioning in summer 2009, and continued until December 2012. It has since been succeeded by the Intermediate Palomar Transient Factory (iPTF), which itself transitioned to the Zwicky Transient Facility in 2017/18. All three surveys are registered at the MPC under the same observatory code for their astrometric observations. Description The fully automated system included an automated realtime data reduction pipeline, a dedicated photometric follow-up telescope, and a full archive of all detected astronomical sources. The survey was performed with a 12K × 8K, 7.8 square degree CCD array camera re-engineered for the 1.2-meter Samuel Oschin Telescope at Palomar Observatory. The survey camera achieved firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedotransfer Function
In soil science, pedotransfer functions (PTF) are predictive functions of certain soil properties using data from soil surveys. The term ''pedotransfer function'' was coined by Johan Bouma as ''translating data we have into what we need''. The most readily available data comes from a soil survey, such as the field morphology, soil texture, structure and pH. Pedotransfer functions add value to this basic information by translating them into estimates of other more laborious and expensively determined soil properties. These functions fill the gap between the available soil data and the properties which are more useful or required for a particular model or quality assessment. Pedotransfer functions utilize various regression analysis and data mining techniques to extract rules associating basic soil properties with more difficult to measure properties. Although not formally recognized and named until 1989, the concept of the pedotransfer function has long been applied to estimate soi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phase Transfer Function
The optical transfer function (OTF) of an optical system such as a camera, microscope, human eye, or projector specifies how different spatial frequencies are captured or transmitted. It is used by optical engineers to describe how the optics project light from the object or scene onto a photographic film, detector array, retina, screen, or simply the next item in the optical transmission chain. A variant, the modulation transfer function (MTF), neglects phase effects, but is equivalent to the OTF in many situations. Either transfer function specifies the response to a periodic sine-wave pattern passing through the lens system, as a function of its spatial frequency or period, and its orientation. Formally, the OTF is defined as the Fourier transform of the point spread function (PSF, that is, the impulse response of the optics, the image of a point source). As a Fourier transform, the OTF is complex-valued; but it will be real-valued in the common case of a PSF that is symmetr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Program Temporary Fix
In IBM terminology, a Program temporary fix or Product temporary fix (PTF), sometimes depending on date, is a single bug fix, or group of fixes, distributed in a form ready to install for customers. A PTF normally follows an APAR (Authorized Program Analysis Report), and where an "APAR fix" was issued, the PTF "is a tested APAR" or set of APAR fixes. However, if an APAR is resolved as "Fixed If Next" or "Permanent Restriction" then there may be no PTF fixing it, only a subsequent release. PTF installation Initially, installations had to install service via a semi-manual process. Over time, IBM started to provide service aids such as IMAPTFLE and utilities such as IEBEDIT to simplify the installation of batches of PTFs. For OS/360 and successors, this culminated in System Modification Program (SMP) and System Modification Program/Extended (SMP/E). For VM, this culminated in Virtual Machine Serviceability Enhancements Staged (VM/SP SES) and VMSES/E. For DOS/360 and successors, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PlayStation Portable
The PlayStation Portable (PSP) is a handheld game console developed and marketed by Sony Computer Entertainment. It was first released in Japan on December 12, 2004, in North America on March 24, 2005, and in PAL regions on September 1, 2005, and is the first handheld installment in the PlayStation line of consoles. As a seventh generation console, the PSP competed with the Nintendo DS. Development of the PSP was announced during E3 2003, and the console was unveiled at a Sony press conference on May 11, 2004. The system was the most powerful portable console when it was introduced, and was the first real competitor of Nintendo's handheld consoles after many challengers such as Nokia's N-Gage had failed. The PSP's advanced graphics capabilities made it a popular mobile entertainment device, which could connect to the PlayStation 2 and PlayStation 3, any computer with a USB interface, other PSP systems, and the Internet. The PSP also had a vast array of multimedia features su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pro Tools
Pro Tools is a digital audio workstation (DAW) developed and released by Avid Technology (formerly Digidesign) for Microsoft Windows and macOS. It is used for music creation and production, sound for picture (sound design, audio post-production and mixing) and, more generally, sound recording, editing, and mastering processes. Pro Tools operates both as standalone software and in conjunction with a range of external analog-to-digital converters and PCIe cards with on-board digital signal processors (DSP). The DSP is used to provide additional processing power to the host computer for processing real-time effects, such as reverb, equalization, and compression and to obtain lower latency audio performance. Like all digital audio workstation software, Pro Tools can perform the functions of a multitrack tape recorder and a mixing console along with additional features that can only be performed in the digital domain, such as non-linear and non-destructive editing (most of aud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pat Tillman Foundation
The Pat Tillman Foundation is a non-profit organization created in 2004 by friends and family of former Arizona Cardinals safety turned U.S. Army Ranger Pat Tillman, including his widow Marie Tillman, in the aftermath of his fratricide death in Afghanistan."Army Says Friendly Fire Probably Killed Pat Tillman in Afghanistan: FORT BRAGG, N.C."''Ventura County Star'', 2004''.'' In honor of his death, The Pat Tillman Foundation was created. The foundation supports the education and leadership development of veterans and military spouses primarily through its Tillman Scholars program. The annual Pat's Run held in Tempe, Arizona since 2005 regularly draws over 25,000 participants in a 4.2 mile walk/run that finishes on the 42 yard line of Arizona State University's Sun Devil Stadium and helps fund scholarships and programs for Tillman Scholars. Background A graduate of Arizona State University and former Pac-10 defensive player of the year, Tillman was drafted in the 7th round o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Tatchell Foundation
Peter Gary Tatchell (born 25 January 1952) is a British human rights campaigner, originally from Australia, best known for his work with LGBT social movements. Tatchell was selected as the Labour Party (UK), Labour Party's Parliament of the United Kingdom, parliamentary candidate for Bermondsey (UK Parliament constituency), Bermondsey in 1981. He was then denounced by party leader Michael Foot for ostensibly supporting extra-Parliamentary action against the Margaret Thatcher, Thatcher government. Labour subsequently allowed him to stand in the 1983 Bermondsey by-election in February 1983, in which the party lost the seat to the Liberal Party (UK), Liberals. In the 1990s he campaigned for LGBT rights through the direct action group OutRage!, which he co-founded. He has worked on various campaigns, such as Stop Murder Music against music lyrics allegedly inciting violence against LGBT people and writes and broadcasts on various human rights and social justice issues. He attempted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Police Task Force
The Police Tactical Unit (PTU) is a paramilitary specialist unit of the Singapore Police Force and comes under the direct command of the Special Operations Command. Based in Queenstown, it is the main anti-rioting and disaster-management unit of the police force. They are also called upon to handle cases of serious crime in progress, particularly cases involving firearms. From 2004, PTU officers also presented greater public prominence when they conducted patrols in public areas, such as at Orchard Road, Holland Village and Serangoon Gardens Estate, partly as a response to greater terrorism concerns. History Early Days The PTU traces its history back to the early 1950s whereby the Maria Hertogh riots demonstrated the incapability of existing law enforcement measures in containing situations of mass rioting and other disturbances to public peace. Hence in 1952, the first Riot Squad was formed with 60 junior officers deliberately chosen from a wide range of ethnic backgrounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
