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Paradip–Haldia–Barauni Crude Oil Pipeline
The Paradip–Haldia–Barauni Crude Oil Pipeline (PHBPL) is IndianOil's east coast crude oil pipeline, which unloads crude from tankers at Paradip, Odisha, and feeds the Haldia and Barauni refineries.
Paradise Fossil Plant
Paradise Fossil Plant was a coal-fired power station owned by the Tennessee Valley Authority in western Kentucky, built between 1959 and 1970 and retired by 2020.
Paraffin wax
Paraffin wax, also known as petroleum wax, is a white, odorless waxy solid of straight-chain saturated hydrocarbons derived from petroleum, used in candles, packaging, cosmetics, and thermal energy storage.
Paraffinic Froth Treatment
Paraffinic froth treatment (PFT) is an oil sands bitumen cleaning process, first commercialized by Albian Sands in 2002, in which a paraffinic solvent precipitates asphaltenes from bitumen froth.
Parag Agrawal
Parag Agrawal is an Indian-American computer scientist and technology executive who served as CEO of Twitter from November 2021 until his dismissal in October 2022.
Paragliding
Paragliding, also known as parapente, is a recreational and competitive air sport in which a pilot flies an engineless, foot-launched fabric wing suspended from a harness.
Paragon Solutions
Paragon Solutions, Israeli-founded spyware vendor (2019) behind the Graphite zero-click implant for encrypted apps; acquired by AE Industrial Partners in 2024; customers, WhatsApp disclosures, and ICE contract distinguish it from NSO Group.
Parakeet (AI model)
Parakeet is a family of open automatic speech recognition models from NVIDIA's NeMo toolkit, whose English v2 model topped the Hugging Face Open ASR Leaderboard in 2025.
Parakrama Samudra (පරාක්රම සමුද්රය)
Parakrama Samudra (පරාක්රම සමුද්රය), the "Sea of Parakrama," is an ancient irrigation reservoir at Polonnaruwa, Sri Lanka, built under King Parakramabahu I between 1153 and 1186.
Parallel Algorithms
Parallel algorithms perform multiple operations simultaneously on multiprocessors. Key ideas: work-efficiency, PRAM and BSP models, NC versus P-complete problems, Amdahl's law speedup limits, and MapReduce simulation results.
Parallel ATA
Parallel ATA (PATA), also called IDE, is a computer interface standard connecting hard disk and optical drives, dominant from the late 1980s until Serial ATA replaced it around 2006.
Parallel computing
Parallel computing, also called parallel computation or parallelisation, is the use of multiple processing elements executing parts of one problem simultaneously, spanning shared-memory threading, message passing, and GPU programming from multicore CPUs to supercomputers.
Parallel interference cancellation
Parallel interference cancellation (PIC) is a multiuser detection technique, used chiefly in CDMA receivers, that estimates and subtracts all other users' interference simultaneously rather than one user at a time.
Parallel jaw gripper
A parallel jaw gripper is a robotic end effector whose two jaws move in parallel paths to grip parts, the most widely used mechanical gripper design.
Parallel kinematic machine
A parallel kinematic machine (PKM) connects its tool platform to a fixed base through multiple actuated limbs, providing high stiffness and low moving inertia but a small workspace.
Parallel Networks (company)
Parallel Networks, LLC is an American patent assertion entity that licenses and litigates patents on managing dynamic web page generation requests, filing 16 lawsuits between 2006 and 2013.
Parallel parking
Parallel parking is the method of parking in line with the road by reversing into a curbside gap between vehicles, valued in dense cities but widely considered difficult.
Parallel port
The parallel port, also known as the printer port or LPT port, is a computer interface that transfers multiple bits at once, standardized as IEEE 1284 in 1994.
Parallel Random Access Machine
The Parallel Random Access Machine (PRAM) is an abstract model of parallel computation where synchronous processors share one unbounded memory, with variants EREW, CREW, and CRCW.
Parallel Thread Execution
Parallel Thread Execution (PTX) is Nvidia's low-level virtual machine and instruction set for CUDA GPUs, translated to native GPU code ahead of time or just in time.
Parallel Web Systems
Parallel Web Systems is a Silicon Valley startup, founded by former Twitter CEO Parag Agrawal in 2023, that builds web search and research APIs for AI agents.
PARAM (परम)
PARAM (परम) is a series of supercomputers developed by India's Centre for Development of Advanced Computing (C-DAC), beginning with the PARAM 8000 in 1990-91 and continuing under the National Supercomputing Mission.
Parameter (computer programming)
In computer programming, a parameter is a variable named in a function declaration that is initialized with a supplied value, called an argument, when the function is invoked.
Parameter server
A parameter server is a distributed machine learning architecture in which server nodes hold shared model parameters while worker nodes pull them and push back gradient updates.
Parameterized complexity
Parameterized complexity is a branch of computational complexity theory that measures problem difficulty by input size plus a secondary parameter, developed by Rod Downey and Michael Fellows.
Parametric array
A parametric array is a transducer arrangement that converts two high-frequency ultrasound beams into a narrow, directional low-frequency beam, used in parametric sonar and audio spotlights.
Parametric design
Parametric design is a design method in which design elements are related by explicit parameters, so changing one automatically regenerates dependent geometry; it underlies building information modeling and the architectural style Parametricism.
Parametric rolling
Parametric rolling is a self-reinforcing ship roll motion caused when waves periodically reduce transverse stability, occurring mostly in head and following seas; the 1998 APL China casualty made it a regulatory concern.
Parametricity
Parametricity is the property of polymorphic functions in type theory that they behave uniformly across type instantiations: such a function cannot inspect its type arguments, an idea formalized relationally by Reynolds in 1983.
PARAMICS
PARAMICS is a microscopic traffic simulation package modeling individual vehicles on road networks, developed at the University of Edinburgh and now sold as Paramics Discovery by SYSTRA.