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Diego Silang
Diego Silang was a rebel leader who headed an uprising in the Ilocos region of the Spanish Philippines in 1762 and 1763, during the British capture of Manila.
Diego Simeone
Diego Simeone (Diego Pablo Simeone), Argentine manager born 1970, coach of Atlético Madrid since December 2011; creator of cholismo, a compact 4-4-2 defensive style; eight titles, two Champions League finals, 800 matches, contract to 2027.
Diego Vásquez (actor)
Diego Vásquez (Diego Javier Vásquez), born 1964 in Ibagué, Colombia, is a Colombian actor and screenwriter, a former geologist, known for villain roles in telenovelas, El Chapo, Leandro Díaz, and as José Arcadio Buendía in Netflix's One Hundred Years of Solitude (2024), earning a 2025 International Emmy nomination.
Diego Velázquez
Diego Velázquez (Diego Rodríguez de Silva y Velázquez, 1599–1660), Spanish Baroque painter of Seville, court painter to Philip IV from 1623, creator of Las Meninas (1656), trained under Francisco Pacheco and made two Italian journeys.
Diego Velázquez de Cuéllar
Diego Velázquez de Cuéllar (1465–1524) was a Spanish conquistador who conquered Cuba in 1511 and served as its first Spanish governor, founding Havana and other towns.
Diego Vergani
Diego Vergani is a British-based liver immunologist and hepatologist, Professor of Liver Immunopathology at King's College London since 2003, known for research on autoimmune and viral liver disease.
Diego Villares
Diego Villares Yáñez (Vilalba, 1996), Spanish midfielder and captain of RC Deportivo de A Coruña since 2025; joined 2018, debut 2021, renewed to 2028, over 200 matches, promoted to LaLiga.
Diel vertical migration
Diel vertical migration is the daily movement of aquatic animals toward the surface at night and into deeper water by day, the largest synchronized movement of biomass on Earth.
Dielasma
Dielasma (King, 1859) is an extinct genus of terebratulid brachiopods, type species Terebratulites elongatus, ranging Upper Mississippian to Upper Triassic, cosmopolitan, with a dorsal-valve loop.
Dieldrin
Dieldrin is a persistent organochlorine insecticide of the cyclodiene group and the epoxide of aldrin, used from 1950 until its last US use, termite control, was canceled in 1989.
Dielectric
A dielectric, or dielectric medium, is an electrically insulating material that becomes polarized when placed in an electric field. It is central to capacitors, where it raises capacitance and breakdown voltage.
Dielectric analysis
Dielectric analysis, also called dielectric spectroscopy, characterizes insulating materials by applying an alternating electric field and measuring complex permittivity, mapping dipole relaxation, ionic conduction, and interfacial charge processes.
Dielectric elastomer actuator
A dielectric elastomer actuator is a soft, electrically powered actuator with no discrete moving parts, in which voltage across a prestrained elastomer film produces strains of 10% to 50%.
Dielectric function
The dielectric function, also called the complex permittivity, is a material's complex, frequency-dependent response to an electric field: its real part governs refraction, its imaginary part absorption.
Dielectric heating
Dielectric heating, also known as radio-frequency or RF heating, generates heat inside non-conducting materials by exposing them to high-frequency alternating electric fields, spanning RF and microwave regimes used for industrial drying, welding, baking, and preheating.
Dielectric Huygens' metasurface
A dielectric Huygens' metasurface is an ultrathin planar array of subwavelength dielectric nanostructures, or meta-atoms, engineered so overlapping electric and magnetic dipole resonances make each one scatter light almost entirely forward.
Dielectric laser accelerator
Dielectric laser acceleration (DLA) is a particle-acceleration technique in which a laser drives a dielectric microstructure on a chip, first demonstrated in 2013 at SLAC and Stanford with gradients roughly ten times those of conventional accelerators.
Dielectric loss
Dielectric loss is the dissipation of electromagnetic energy as heat inside an insulating material when an alternating electric field is applied, quantified by the loss tangent and exploited in dielectric heating.
Dielectric metasurface
A dielectric metasurface is an ultrathin, planar array of subwavelength high-index nanostructures that controls light's phase and polarization with low optical loss and high efficiency.
Dielectric mirror
A dielectric mirror, also known as a Bragg mirror, is a mirror made of many thin transparent layers that reflect over 99.9% of light at chosen wavelengths.
Dielectric resonator
A dielectric resonator is a high-permittivity, low-loss ceramic that stores microwave energy as standing waves, used in mobile phone filters, oscillators, and antennas, with less loss than metal cavities.
Dielectric resonator antenna
The dielectric resonator antenna (DRA) is a low-profile microwave antenna in which a dielectric resonator on a ground plane radiates directly, avoiding the conduction losses of metal antennas, especially at millimeter-wave frequencies.
Dielectric screening in halide perovskites
Dielectric screening in halide perovskites is the weakening of Coulomb interactions by the polarizable dielectric lattice response, underlying defect tolerance and additive-based solar cell design.
Dielectric spectroscopy
Dielectric spectroscopy characterizes a material by applying an electric field across a wide frequency range, roughly 10⁻⁶ to 10¹² Hz, and measuring the complex permittivity to reveal dipolar dynamics, charge transport, and interfacial polarization.
Dielectric strength
Dielectric strength is the maximum electric field an insulating material can withstand without breaking down and becoming electrically conductive, typically measured in kV/mm; air is about 3 kV/mm.
Dielectric waveguide
A dielectric waveguide confines electromagnetic waves in a core of glass, plastic, or sapphire by total internal reflection, spanning optical fibers, terahertz rods, and integrated photonic chips.
Dielectric-barrier discharge
A dielectric-barrier discharge (DBD), historically called a silent discharge, is a cold, non-equilibrium plasma generated at atmospheric pressure between electrodes separated by an insulating dielectric layer.
Dielectric-dependent hybrid functionals
Dielectric-dependent hybrid functionals (DDH) are exchange-correlation approximations in density functional theory, introduced for solids in 2014, that replace fixed empirical exchange mixing with a value set by dielectric screening.
Dielectronic recombination
Dielectronic recombination is a resonant electron-ion recombination process in which a captured free electron simultaneously excites a bound electron; the doubly excited state stabilizes by emitting a photon.
Dielectrophoresis
Dielectrophoresis (DEP) is an electrokinetic technique in which nonuniform electric fields move neutral, polarizable particles without labels or contact, used for cell separation and sorting.