61,984 articles
Pseudo-halide anion engineering in perovskites
Pseudo-halide anion engineering is a perovskite solar cell strategy that introduces halide-like polyatomic anions, mainly thiocyanate and formate, to passivate defects and has enabled efficiencies exceeding 25%.
Pseudo-labeling
Pseudo-labeling is a semi-supervised learning technique in which a model treats its most confident predictions on unlabeled data as true labels, introduced for deep networks by Dong-Hyun Lee in 2013.
Pseudo-rigid-body model
The pseudo-rigid-body model (PRBM) is a mechanism design method that represents compliant mechanisms as rigid links joined by springs, introduced by Howell and Midha in 1995.
Pseudo-spectral trajectory optimization
Pseudo-spectral trajectory optimization, also called orthogonal collocation, approximates state and control trajectories with global orthogonal polynomials and enforces dynamics by collocation at Gauss quadrature points.
Pseudocapacitor
A pseudocapacitor is an electrochemical energy storage device that stores charge through fast, reversible Faradaic redox reactions at electrode surfaces, achieving greater capacitance and energy density than electric double-layer capacitors.
Pseudocode
Pseudocode is a plain-language, language-independent description of an algorithm's steps that resembles programming code but is meant for humans rather than execution, used for planning and teaching.
Pseudomorphic HEMT
A pseudomorphic HEMT (pHEMT) is a compound semiconductor field-effect transistor with a thin, strained InGaAs channel, giving high gain and low noise for RF and microwave use.
Pseudonymization
Pseudonymization is a data protection technique defined in Article 4(5) of the GDPR in which personal data is processed so it cannot be attributed to a person without separately protected additional information.
Pseudorandom number generator
A pseudorandom number generator (PRNG) is a deterministic algorithm that produces number sequences resembling randomness from a short seed, though outputs remain fully predictable if the seed is known.
Pseudoterminal
A pseudoterminal, abbreviated pty, is a pair of virtual character devices, a master and a slave, letting programs like ssh and xterm behave as if a real terminal were attached.
Pseudowire
A pseudowire is a mechanism that emulates the essential attributes of a telecommunications service, such as T1, Frame Relay, ATM, or Ethernet, over a packet-switched network using IP or MPLS.
Psiphon
Psiphon is a Canadian open-source censorship-circumvention tool operated by Psiphon Inc. of Toronto, relaying Internet traffic through proxy servers using VPN, SSH, and obfuscated transports.
PSL (rifle)
The PSL (Pușca Semiautomată cu Lunetă) is a Romanian designated marksman rifle adopted in 1974, chambered in 7.62×54mmR and resembling the SVD Dragunov though built on a Kalashnikov-pattern action.
PSLV
The Polar Satellite Launch Vehicle (PSLV) is a four-stage Indian rocket operated by ISRO since 1993, nicknamed the Workhorse of ISRO. In 2017 it launched 104 satellites in one flight.
PSpice
PSpice is a commercial SPICE-based circuit simulator for analog and mixed-signal electronic circuits, originally developed by MicroSim Corporation and now sold by Cadence Design Systems as part of its PCB design toolset.
PsyArXiv
PsyArXiv is a free, open-access preprint repository for the psychological sciences, created by the Society for the Improvement of Psychological Science and launched in 2016.
Psyche (spacecraft)
Psyche is a NASA robotic orbiter launched on October 13, 2023, to study the metal-rich asteroid 16 Psyche, believed to be an exposed planetary core, arriving in 2029.
Psychrometric chart
A psychrometric chart is a graph of the thermodynamic properties of moist air, relating temperature, humidity, and enthalpy for air-conditioning design; Willis Carrier created it in 1904.
Psychrometrics
Psychrometrics is the branch of physics that studies the thermodynamic properties of moist air, the mixture of dry air and water vapor, and underlies air-conditioning design and drying.
PsycINFO
PsycINFO, also called APA PsycInfo, is a bibliographic database of psychology and the behavioral sciences produced by the American Psychological Association, offered electronically since 1967.
PT Adaro Indonesia
PT Adaro Indonesia is an Indonesian thermal coal mining company producing low-sulfur Envirocoal from open-cut mines in South Kalimantan since 1992, acquired in 2005 by PT Alam Tri Abadi.
PT Arutmin Indonesia
PT Arutmin Indonesia is an Indonesian coal mining company with five mines and a coal terminal in South Kalimantan, producing up to 20 million tons of coal per year.
PT Berau Coal
PT Berau Coal is an Indonesian thermal coal mining company operating open cut mines in East Kalimantan since 1983, described as the country's fifth-largest thermal coal producer.
PT boat
A PT boat was a small, fast, wooden motor torpedo boat used by the United States Navy in World War II, armed with torpedoes for harassing enemy forces.
PT Borneo Indobara
PT Borneo Indobara is an Indonesian open-pit coal mining company operating a large concession in Tanah Bumbu Regency, South Kalimantan, as part of the Sinarmas Mining Group.
PT Bukit Asam
PT Bukit Asam (PTBA) is an Indonesian state-controlled coal mining company at Tanjung Enim, South Sumatra, listed on the Indonesia Stock Exchange and majority owned by MIND ID.
PT Halmahera Persada Lygend
PT Halmahera Persada Lygend, a joint venture of Indonesia's Harita Group and China's Ningbo Lygend, operates Indonesia's first high-pressure acid leach nickel plant, on Obi Island, North Maluku.
PT Halmahera Persada Lygend Nickel Smelter power station
The PT Halmahera Persada Lygend Nickel Smelter power station is a captive coal-fired power station in Kawasi, Obi Island, Maluku, Indonesia, supplying the island's nickel smelting and HPAL complex.
PT HLI Green Power
PT HLI Green Power is an Indonesian lithium-ion EV battery cell manufacturer in Karawang, West Java, a joint venture of Hyundai and LG Energy Solution producing since 2024.
PT Huafei Nickel Cobalt
PT Huafei Nickel Cobalt is an Indonesian joint venture operating an HPAL nickel-cobalt plant at the Weda Bay Industrial Park on Halmahera, started in 2024.