%% % Fundamental Physical Constants --- Complete Listing % % % From: http://physics.nist.gov/constants %% %% function phc = fundamentalPhysicalConstantsFromNIST() persistent phc_val; if isempty(phc_val) phc_val = struct(... 'x220_lattice_spacing_of_silicon', struct('value', 192.0155714e-12, 'uncert', 0.0000032e-12, 'unit', 'm'), ... 'alpha_particle_electron_mass_ratio', struct('value', 7294.29954136, 'uncert', 0.00000024, 'unit', ''), ... 'alpha_particle_mass', struct('value', 6.644657230e-27, 'uncert', 0.000000082e-27, 'unit', 'kg'), ... 'alpha_particle_mass_energy_equivalent', struct('value', 5.971920097e-10, 'uncert', 0.000000073e-10, 'unit', 'J'), ... 'alpha_particle_mass_energy_equivalent_in_MeV', struct('value', 3727.379378, 'uncert', 0.000023, 'unit', 'MeV'), ... 'alpha_particle_mass_in_u', struct('value', 4.001506179127, 'uncert', 0.000000000063, 'unit', 'u'), ... 'alpha_particle_molar_mass', struct('value', 4.001506179127e-3, 'uncert', 0.000000000063e-3, 'unit', 'kgmol^-1'), ... 'alpha_particle_proton_mass_ratio', struct('value', 3.97259968907, 'uncert', 0.00000000036, 'unit', ''), ... 'Angstrom_star', struct('value', 1.00001495e-10, 'uncert', 0.00000090e-10, 'unit', 'm'), ... 'atomic_mass_constant', struct('value', 1.660539040e-27, 'uncert', 0.000000020e-27, 'unit', 'kg'), ... 'atomic_mass_constant_energy_equivalent', struct('value', 1.492418062e-10, 'uncert', 0.000000018e-10, 'unit', 'J'), ... 'atomic_mass_constant_energy_equivalent_in_MeV', struct('value', 931.4940954, 'uncert', 0.0000057, 'unit', 'MeV'), ... 'atomic_mass_unit_electron_volt_relationship', struct('value', 931.4940954e6, 'uncert', 0.0000057e6, 'unit', 'eV'), ... 'atomic_mass_unit_hartree_relationship', struct('value', 3.4231776902e7, 'uncert', 0.0000000016e7, 'unit', 'E_h'), ... 'atomic_mass_unit_hertz_relationship', struct('value', 2.2523427206e23, 'uncert', 0.0000000010e23, 'unit', 'Hz'), ... 'atomic_mass_unit_inverse_meter_relationship', struct('value', 7.5130066166e14, 'uncert', 0.0000000034e14, 'unit', 'm^-1'), ... 'atomic_mass_unit_joule_relationship', struct('value', 1.492418062e-10, 'uncert', 0.000000018e-10, 'unit', 'J'), ... 'atomic_mass_unit_kelvin_relationship', struct('value', 1.08095438e13, 'uncert', 0.00000062e13, 'unit', 'K'), ... 'atomic_mass_unit_kilogram_relationship', struct('value', 1.660539040e-27, 'uncert', 0.000000020e-27, 'unit', 'kg'), ... 'atomic_unit_of_1st_hyperpolarizability', struct('value', 3.206361329e-53, 'uncert', 0.000000020e-53, 'unit', 'C^3m^3J^-2'), ... 'atomic_unit_of2nd_hyperpolarizability', struct('value', 6.235380085e-65, 'uncert', 0.000000077e-65, 'unit', 'C^4m^4J^-3'), ... 'atomic_unit_of_action', struct('value', 1.054571800e-34, 'uncert', 0.000000013e-34, 'unit', 'Js'), ... 'atomic_unit_of_charge', struct('value', 1.6021766208e-19, 'uncert', 0.0000000098e-19, 'unit', 'C'), ... 'atomic_unit_of_charge_density', struct('value', 1.0812023770e12, 'uncert', 0.0000000067e12, 'unit', 'Cm^-3'), ... 'atomic_unit_of_current', struct('value', 6.623618183e-3, 'uncert', 0.000000041e-3, 'unit', 'A'), ... 'atomic_unit_of_electric_dipole_mom', struct('value', 8.478353552e-30, 'uncert', 0.000000052e-30, 'unit', 'Cm'), ... 'atomic_unit_of_electric_field', struct('value', 5.142206707e11, 'uncert', 0.000000032e11, 'unit', 'Vm^-1'), ... 'atomic_unit_of_electric_field_gradient', struct('value', 9.717362356e21, 'uncert', 0.000000060e21, 'unit', 'Vm^-2'), ... 'atomic_unit_of_electric_polarizability', struct('value', 1.6487772731e-41, 'uncert', 0.0000000011e-41, 'unit', 'C^2m^2J^-1'), ... 'atomic_unit_of_electric_potential', struct('value', 27.21138602, 'uncert', 0.00000017, 'unit', 'V'), ... 'atomic_unit_of_electric_quadrupole_mom', struct('value', 4.486551484e-40, 'uncert', 0.000000028e-40, 'unit', 'Cm^2'), ... 'atomic_unit_of_energy', struct('value', 4.359744650e-18, 'uncert', 0.000000054e-18, 'unit', 'J'), ... 'atomic_unit_of_force', struct('value', 8.23872336e-8, 'uncert', 0.00000010e-8, 'unit', 'N'), ... 'atomic_unit_of_length', struct('value', 0.52917721067e-10, 'uncert', 0.00000000012e-10, 'unit', 'm'), ... 'atomic_unit_of_mag_dipole_mom', struct('value', 1.854801999e-23, 'uncert', 0.000000011e-23, 'unit', 'JT^-1'), ... 'atomic_unit_of_mag_flux_density', struct('value', 2.350517550e5, 'uncert', 0.000000014e5, 'unit', 'T'), ... 'atomic_unit_of_magnetizability', struct('value', 7.8910365886e-29, 'uncert', 0.0000000090e-29, 'unit', 'JT^-2'), ... 'atomic_unit_of_mass', struct('value', 9.10938356e-31, 'uncert', 0.00000011e-31, 'unit', 'kg'), ... 'atomic_unit_of_momum', struct('value', 1.992851882e-24, 'uncert', 0.000000024e-24, 'unit', 'kgms^-1'), ... 'atomic_unit_of_permittivity', struct('value', 1.112650056e-10, 'uncert', 0, 'unit', 'Fm^-1'), ... 'atomic_unit_of_time', struct('value', 2.418884326509e-17, 'uncert', 0.000000000014e-17, 'unit', 's'), ... 'atomic_unit_of_velocity', struct('value', 2.18769126277e6, 'uncert', 0.00000000050e6, 'unit', 'ms^-1'), ... 'Avogadro_constant', struct('value', 6.022140857e23, 'uncert', 0.000000074e23, 'unit', 'mol^-1'), ... 'Bohr_magneton', struct('value', 927.4009994e-26, 'uncert', 0.0000057e-26, 'unit', 'JT^-1'), ... 'Bohr_magneton_in_eV_over_T', struct('value', 5.7883818012e-5, 'uncert', 0.0000000026e-5, 'unit', 'eVT^-1'), ... 'Bohr_magneton_in_Hz_over_T', struct('value', 13.996245042e9, 'uncert', 0.000000086e9, 'unit', 'HzT^-1'), ... 'Bohr_magneton_in_inverse_meters_per_tesla', struct('value', 46.68644814, 'uncert', 0.00000029, 'unit', 'm^-1T^-1'), ... 'Bohr_magneton_in_K_over_T', struct('value', 0.67171405, 'uncert', 0.00000039, 'unit', 'KT^-1'), ... 'Bohr_radius', struct('value', 0.52917721067e-10, 'uncert', 0.00000000012e-10, 'unit', 'm'), ... 'Boltzmann_constant', struct('value', 1.38064852e-23, 'uncert', 0.00000079e-23, 'unit', 'JK^-1'), ... 'Boltzmann_constant_in_eV_over_K', struct('value', 8.6173303e-5, 'uncert', 0.0000050e-5, 'unit', 'eVK^-1'), ... 'Boltzmann_constant_in_Hz_over_K', struct('value', 2.0836612e10, 'uncert', 0.0000012e10, 'unit', 'HzK^-1'), ... 'Boltzmann_constant_in_inverse_meters_per_kelvin', struct('value', 69.503457, 'uncert', 0.000040, 'unit', 'm^-1K^-1'), ... 'characteristic_impedance_of_vacuum', struct('value', 376.730313461, 'uncert', 0, 'unit', 'ohm'), ... 'classical_electron_radius', struct('value', 2.8179403227e-15, 'uncert', 0.0000000019e-15, 'unit', 'm'), ... 'Compton_wavelength', struct('value', 2.4263102367e-12, 'uncert', 0.0000000011e-12, 'unit', 'm'), ... 'Compton_wavelength_over2pi', struct('value', 386.15926764e-15, 'uncert', 0.00000018e-15, 'unit', 'm'), ... 'conductance_quantum', struct('value', 7.7480917310e-5, 'uncert', 0.0000000018e-5, 'unit', 'S'), ... 'conventional_value_of_Josephson_constant', struct('value', 483597.9e9, 'uncert', 0, 'unit', 'HzV^-1'), ... 'conventional_value_of_von_Klitzing_constant', struct('value', 25812.807, 'uncert', 0, 'unit', 'ohm'), ... 'Cu_x_unit', struct('value', 1.00207697e-13, 'uncert', 0.00000028e-13, 'unit', 'm'), ... 'deuteron_electron_mag_mom_ratio', struct('value', -4.664345535e-4, 'uncert', 0.000000026e-4, 'unit', ''), ... 'deuteron_electron_mass_ratio', struct('value', 3670.48296785, 'uncert', 0.00000013, 'unit', ''), ... 'deuteron_g_factor', struct('value', 0.8574382311, 'uncert', 0.0000000048, 'unit', ''), ... 'deuteron_mag_mom', struct('value', 0.4330735040e-26, 'uncert', 0.0000000036e-26, 'unit', 'JT^-1'), ... 'deuteron_mag_mom_to_Bohr_magneton_ratio', struct('value', 0.4669754554e-3, 'uncert', 0.0000000026e-3, 'unit', ''), ... 'deuteron_mag_mom_to_nuclear_magneton_ratio', struct('value', 0.8574382311, 'uncert', 0.0000000048, 'unit', ''), ... 'deuteron_mass', struct('value', 3.343583719e-27, 'uncert', 0.000000041e-27, 'unit', 'kg'), ... 'deuteron_mass_energy_equivalent', struct('value', 3.005063183e-10, 'uncert', 0.000000037e-10, 'unit', 'J'), ... 'deuteron_mass_energy_equivalent_in_MeV', struct('value', 1875.612928, 'uncert', 0.000012, 'unit', 'MeV'), ... 'deuteron_mass_in_u', struct('value', 2.013553212745, 'uncert', 0.000000000040, 'unit', 'u'), ... 'deuteron_molar_mass', struct('value', 2.013553212745e-3, 'uncert', 0.000000000040e-3, 'unit', 'kgmol^-1'), ... 'deuteron_neutron_mag_mom_ratio', struct('value', -0.44820652, 'uncert', 0.00000011, 'unit', ''), ... 'deuteron_proton_mag_mom_ratio', struct('value', 0.3070122077, 'uncert', 0.0000000015, 'unit', ''), ... 'deuteron_proton_mass_ratio', struct('value', 1.99900750087, 'uncert', 0.00000000019, 'unit', ''), ... 'deuteron_rms_charge_radius', struct('value', 2.1413e-15, 'uncert', 0.0025e-15, 'unit', 'm'), ... 'electric_constant', struct('value', 8.854187817e-12, 'uncert', 0, 'unit', 'Fm^-1'), ... 'electron_charge_to_mass_quotient', struct('value', -1.758820024e11, 'uncert', 0.000000011e11, 'unit', 'Ckg^-1'), ... 'electron_deuteron_mag_mom_ratio', struct('value', -2143.923499, 'uncert', 0.000012, 'unit', ''), ... 'electron_deuteron_mass_ratio', struct('value', 2.724437107484e-4, 'uncert', 0.000000000096e-4, 'unit', ''), ... 'electron_g_factor', struct('value', -2.00231930436182, 'uncert', 0.00000000000052, 'unit', ''), ... 'electron_gyromag_ratio', struct('value', 1.760859644e11, 'uncert', 0.000000011e11, 'unit', 's^-1T^-1'), ... 'electron_gyromag_ratio_over2pi', struct('value', 28024.95164, 'uncert', 0.00017, 'unit', 'MHzT^-1'), ... 'electron_helion_mass_ratio', struct('value', 1.819543074854e-4, 'uncert', 0.000000000088e-4, 'unit', ''), ... 'electron_mag_mom', struct('value', -928.4764620e-26, 'uncert', 0.0000057e-26, 'unit', 'JT^-1'), ... 'electron_mag_mom_anomaly', struct('value', 1.15965218091e-3, 'uncert', 0.00000000026e-3, 'unit', ''), ... 'electron_mag_mom_to_Bohr_magneton_ratio', struct('value', -1.00115965218091, 'uncert', 0.00000000000026, 'unit', ''), ... 'electron_mag_mom_to_nuclear_magneton_ratio', struct('value', -1838.28197234, 'uncert', 0.00000017, 'unit', ''), ... 'electron_mass', struct('value', 9.10938356e-31, 'uncert', 0.00000011e-31, 'unit', 'kg'), ... 'electron_mass_energy_equivalent', struct('value', 8.18710565e-14, 'uncert', 0.00000010e-14, 'unit', 'J'), ... 'electron_mass_energy_equivalent_in_MeV', struct('value', 0.5109989461, 'uncert', 0.0000000031, 'unit', 'MeV'), ... 'electron_mass_in_u', struct('value', 5.48579909070e-4, 'uncert', 0.00000000016e-4, 'unit', 'u'), ... 'electron_molar_mass', struct('value', 5.48579909070e-7, 'uncert', 0.00000000016e-7, 'unit', 'kgmol^-1'), ... 'electron_muon_mag_mom_ratio', struct('value', 206.7669880, 'uncert', 0.0000046, 'unit', ''), ... 'electron_muon_mass_ratio', struct('value', 4.83633170e-3, 'uncert', 0.00000011e-3, 'unit', ''), ... 'electron_neutron_mag_mom_ratio', struct('value', 960.92050, 'uncert', 0.00023, 'unit', ''), ... 'electron_neutron_mass_ratio', struct('value', 5.4386734428e-4, 'uncert', 0.0000000027e-4, 'unit', ''), ... 'electron_proton_mag_mom_ratio', struct('value', -658.2106866, 'uncert', 0.0000020, 'unit', ''), ... 'electron_proton_mass_ratio', struct('value', 5.44617021352e-4, 'uncert', 0.00000000052e-4, 'unit', ''), ... 'electron_tau_mass_ratio', struct('value', 2.87592e-4, 'uncert', 0.00026e-4, 'unit', ''), ... 'electron_to_alpha_particle_mass_ratio', struct('value', 1.370933554798e-4, 'uncert', 0.000000000045e-4, 'unit', ''), ... 'electron_to_shielded_helion_mag_mom_ratio', struct('value', 864.058257, 'uncert', 0.000010, 'unit', ''), ... 'electron_to_shielded_proton_mag_mom_ratio', struct('value', -658.2275971, 'uncert', 0.0000072, 'unit', ''), ... 'electron_triton_mass_ratio', struct('value', 1.819200062203e-4, 'uncert', 0.000000000084e-4, 'unit', ''), ... 'electron_volt', struct('value', 1.6021766208e-19, 'uncert', 0.0000000098e-19, 'unit', 'J'), ... 'electron_volt_atomic_mass_unit_relationship', struct('value', 1.0735441105e-9, 'uncert', 0.0000000066e-9, 'unit', 'u'), ... 'electron_volt_hartree_relationship', struct('value', 3.674932248e-2, 'uncert', 0.000000023e-2, 'unit', 'E_h'), ... 'electron_volt_hertz_relationship', struct('value', 2.417989262e14, 'uncert', 0.000000015e14, 'unit', 'Hz'), ... 'electron_volt_inverse_meter_relationship', struct('value', 8.065544005e5, 'uncert', 0.000000050e5, 'unit', 'm^-1'), ... 'electron_volt_joule_relationship', struct('value', 1.6021766208e-19, 'uncert', 0.0000000098e-19, 'unit', 'J'), ... 'electron_volt_kelvin_relationship', struct('value', 1.16045221e4, 'uncert', 0.00000067e4, 'unit', 'K'), ... 'electron_volt_kilogram_relationship', struct('value', 1.782661907e-36, 'uncert', 0.000000011e-36, 'unit', 'kg'), ... 'elementary_charge', struct('value', 1.6021766208e-19, 'uncert', 0.0000000098e-19, 'unit', 'C'), ... 'elementary_charge_over_h', struct('value', 2.417989262e14, 'uncert', 0.000000015e14, 'unit', 'AJ^-1'), ... 'Faraday_constant', struct('value', 96485.33289, 'uncert', 0.00059, 'unit', 'Cmol^-1'), ... 'Faraday_constant_for_conventional_electric_current', struct('value', 96485.3251, 'uncert', 0.0012, 'unit', 'C_90mol^-1'), ... 'Fermi_coupling_constant', struct('value', 1.1663787e-5, 'uncert', 0.0000006e-5, 'unit', 'GeV^-2'), ... 'fine_structure_constant', struct('value', 7.2973525664e-3, 'uncert', 0.0000000017e-3, 'unit', ''), ... 'first_radiation_constant', struct('value', 3.741771790e-16, 'uncert', 0.000000046e-16, 'unit', 'Wm^2'), ... 'first_radiation_constant_for_spectral_radiance', struct('value', 1.191042953e-16, 'uncert', 0.000000015e-16, 'unit', 'Wm^2sr^-1'), ... 'hartree_atomic_mass_unit_relationship', struct('value', 2.9212623197e-8, 'uncert', 0.0000000013e-8, 'unit', 'u'), ... 'hartree_electron_volt_relationship', struct('value', 27.21138602, 'uncert', 0.00000017, 'unit', 'eV'), ... 'Hartree_energy', struct('value', 4.359744650e-18, 'uncert', 0.000000054e-18, 'unit', 'J'), ... 'Hartree_energy_in_eV', struct('value', 27.21138602, 'uncert', 0.00000017, 'unit', 'eV'), ... 'hartree_hertz_relationship', struct('value', 6.579683920711e15, 'uncert', 0.000000000039e15, 'unit', 'Hz'), ... 'hartree_inverse_meter_relationship', struct('value', 2.194746313702e7, 'uncert', 0.000000000013e7, 'unit', 'm^-1'), ... 'hartree_joule_relationship', struct('value', 4.359744650e-18, 'uncert', 0.000000054e-18, 'unit', 'J'), ... 'hartree_kelvin_relationship', struct('value', 3.1577513e5, 'uncert', 0.0000018e5, 'unit', 'K'), ... 'hartree_kilogram_relationship', struct('value', 4.850870129e-35, 'uncert', 0.000000060e-35, 'unit', 'kg'), ... 'helion_electron_mass_ratio', struct('value', 5495.88527922, 'uncert', 0.00000027, 'unit', ''), ... 'helion_g_factor', struct('value', -4.255250616, 'uncert', 0.000000050, 'unit', ''), ... 'helion_mag_mom', struct('value', -1.074617522e-26, 'uncert', 0.000000014e-26, 'unit', 'JT^-1'), ... 'helion_mag_mom_to_Bohr_magneton_ratio', struct('value', -1.158740958e-3, 'uncert', 0.000000014e-3, 'unit', ''), ... 'helion_mag_mom_to_nuclear_magneton_ratio', struct('value', -2.127625308, 'uncert', 0.000000025, 'unit', ''), ... 'helion_mass', struct('value', 5.006412700e-27, 'uncert', 0.000000062e-27, 'unit', 'kg'), ... 'helion_mass_energy_equivalent', struct('value', 4.499539341e-10, 'uncert', 0.000000055e-10, 'unit', 'J'), ... 'helion_mass_energy_equivalent_in_MeV', struct('value', 2808.391586, 'uncert', 0.000017, 'unit', 'MeV'), ... 'helion_mass_in_u', struct('value', 3.01493224673, 'uncert', 0.00000000012, 'unit', 'u'), ... 'helion_molar_mass', struct('value', 3.01493224673e-3, 'uncert', 0.00000000012e-3, 'unit', 'kgmol^-1'), ... 'helion_proton_mass_ratio', struct('value', 2.99315267046, 'uncert', 0.00000000029, 'unit', ''), ... 'hertz_atomic_mass_unit_relationship', struct('value', 4.4398216616e-24, 'uncert', 0.0000000020e-24, 'unit', 'u'), ... 'hertz_electron_volt_relationship', struct('value', 4.135667662e-15, 'uncert', 0.000000025e-15, 'unit', 'eV'), ... 'hertz_hartree_relationship', struct('value', 1.5198298460088e-16, 'uncert', 0.0000000000090e-16, 'unit', 'E_h'), ... 'hertz_inverse_meter_relationship', struct('value', 3.335640951e-9, 'uncert', 0, 'unit', 'm^-1'), ... 'hertz_joule_relationship', struct('value', 6.626070040e-34, 'uncert', 0.000000081e-34, 'unit', 'J'), ... 'hertz_kelvin_relationship', struct('value', 4.7992447e-11, 'uncert', 0.0000028e-11, 'unit', 'K'), ... 'hertz_kilogram_relationship', struct('value', 7.372497201e-51, 'uncert', 0.000000091e-51, 'unit', 'kg'), ... 'inverse_fine_structure_constant', struct('value', 137.035999139, 'uncert', 0.000000031, 'unit', ''), ... 'inverse_meter_atomic_mass_unit_relationship', struct('value', 1.33102504900e-15, 'uncert', 0.00000000061e-15, 'unit', 'u'), ... 'inverse_meter_electron_volt_relationship', struct('value', 1.2398419739e-6, 'uncert', 0.0000000076e-6, 'unit', 'eV'), ... 'inverse_meter_hartree_relationship', struct('value', 4.556335252767e-8, 'uncert', 0.000000000027e-8, 'unit', 'E_h'), ... 'inverse_meter_hertz_relationship', struct('value', 299792458, 'uncert', 0, 'unit', 'Hz'), ... 'inverse_meter_joule_relationship', struct('value', 1.986445824e-25, 'uncert', 0.000000024e-25, 'unit', 'J'), ... 'inverse_meter_kelvin_relationship', struct('value', 1.43877736e-2, 'uncert', 0.00000083e-2, 'unit', 'K'), ... 'inverse_meter_kilogram_relationship', struct('value', 2.210219057e-42, 'uncert', 0.000000027e-42, 'unit', 'kg'), ... 'inverse_of_conductance_quantum', struct('value', 12906.4037278, 'uncert', 0.0000029, 'unit', 'ohm'), ... 'Josephson_constant', struct('value', 483597.8525e9, 'uncert', 0.0030e9, 'unit', 'HzV^-1'), ... 'joule_atomic_mass_unit_relationship', struct('value', 6.700535363e9, 'uncert', 0.000000082e9, 'unit', 'u'), ... 'joule_electron_volt_relationship', struct('value', 6.241509126e18, 'uncert', 0.000000038e18, 'unit', 'eV'), ... 'joule_hartree_relationship', struct('value', 2.293712317e17, 'uncert', 0.000000028e17, 'unit', 'E_h'), ... 'joule_hertz_relationship', struct('value', 1.509190205e33, 'uncert', 0.000000019e33, 'unit', 'Hz'), ... 'joule_inverse_meter_relationship', struct('value', 5.034116651e24, 'uncert', 0.000000062e24, 'unit', 'm^-1'), ... 'joule_kelvin_relationship', struct('value', 7.2429731e22, 'uncert', 0.0000042e22, 'unit', 'K'), ... 'joule_kilogram_relationship', struct('value', 1.112650056e-17, 'uncert', 0, 'unit', 'kg'), ... 'kelvin_atomic_mass_unit_relationship', struct('value', 9.2510842e-14, 'uncert', 0.0000053e-14, 'unit', 'u'), ... 'kelvin_electron_volt_relationship', struct('value', 8.6173303e-5, 'uncert', 0.0000050e-5, 'unit', 'eV'), ... 'kelvin_hartree_relationship', struct('value', 3.1668105e-6, 'uncert', 0.0000018e-6, 'unit', 'E_h'), ... 'kelvin_hertz_relationship', struct('value', 2.0836612e10, 'uncert', 0.0000012e10, 'unit', 'Hz'), ... 'kelvin_inverse_meter_relationship', struct('value', 69.503457, 'uncert', 0.000040, 'unit', 'm^-1'), ... 'kelvin_joule_relationship', struct('value', 1.38064852e-23, 'uncert', 0.00000079e-23, 'unit', 'J'), ... 'kelvin_kilogram_relationship', struct('value', 1.53617865e-40, 'uncert', 0.00000088e-40, 'unit', 'kg'), ... 'kilogram_atomic_mass_unit_relationship', struct('value', 6.022140857e26, 'uncert', 0.000000074e26, 'unit', 'u'), ... 'kilogram_electron_volt_relationship', struct('value', 5.609588650e35, 'uncert', 0.000000034e35, 'unit', 'eV'), ... 'kilogram_hartree_relationship', struct('value', 2.061485823e34, 'uncert', 0.000000025e34, 'unit', 'E_h'), ... 'kilogram_hertz_relationship', struct('value', 1.356392512e50, 'uncert', 0.000000017e50, 'unit', 'Hz'), ... 'kilogram_inverse_meter_relationship', struct('value', 4.524438411e41, 'uncert', 0.000000056e41, 'unit', 'm^-1'), ... 'kilogram_joule_relationship', struct('value', 8.987551787e16, 'uncert', 0, 'unit', 'J'), ... 'kilogram_kelvin_relationship', struct('value', 6.5096595e39, 'uncert', 0.0000037e39, 'unit', 'K'), ... 'lattice_parameter_of_silicon', struct('value', 543.1020504e-12, 'uncert', 0.0000089e-12, 'unit', 'm'), ... 'Loschmidt_constant_27315_K_100_kPa', struct('value', 2.6516467e25, 'uncert', 0.0000015e25, 'unit', 'm^-3'), ... 'Loschmidt_constant_27315_K_101325_kPa', struct('value', 2.6867811e25, 'uncert', 0.0000015e25, 'unit', 'm^-3'), ... 'mag_constant', struct('value', 12.566370614e-7, 'uncert', 0, 'unit', 'NA^-2'), ... 'mag_flux_quantum', struct('value', 2.067833831e-15, 'uncert', 0.000000013e-15, 'unit', 'Wb'), ... 'molar_gas_constant', struct('value', 8.3144598, 'uncert', 0.0000048, 'unit', 'Jmol^-1K^-1'), ... 'molar_mass_constant', struct('value', 1e-3, 'uncert', 0, 'unit', 'kgmol^-1'), ... 'molar_mass_of_carbon_12', struct('value', 12e-3, 'uncert', 0, 'unit', 'kgmol^-1'), ... 'molar_Planck_constant', struct('value', 3.9903127110e-10, 'uncert', 0.0000000018e-10, 'unit', 'Jsmol^-1'), ... 'molar_Planck_constant_times_c', struct('value', 0.119626565582, 'uncert', 0.000000000054, 'unit', 'Jmmol^-1'), ... 'molar_volume_of_ideal_gas_27315_K_100_kPa', struct('value', 22.710947e-3, 'uncert', 0.000013e-3, 'unit', 'm^3mol^-1'), ... 'molar_volume_of_ideal_gas_27315_K_101325_kPa', struct('value', 22.413962e-3, 'uncert', 0.000013e-3, 'unit', 'm^3mol^-1'), ... 'molar_volume_of_silicon', struct('value', 12.05883214e-6, 'uncert', 0.00000061e-6, 'unit', 'm^3mol^-1'), ... 'Mo_x_unit', struct('value', 1.00209952e-13, 'uncert', 0.00000053e-13, 'unit', 'm'), ... 'muon_Compton_wavelength', struct('value', 11.73444111e-15, 'uncert', 0.00000026e-15, 'unit', 'm'), ... 'muon_Compton_wavelength_over2pi', struct('value', 1.867594308e-15, 'uncert', 0.000000042e-15, 'unit', 'm'), ... 'muon_electron_mass_ratio', struct('value', 206.7682826, 'uncert', 0.0000046, 'unit', ''), ... 'muon_g_factor', struct('value', -2.0023318418, 'uncert', 0.0000000013, 'unit', ''), ... 'muon_mag_mom', struct('value', -4.49044826e-26, 'uncert', 0.00000010e-26, 'unit', 'JT^-1'), ... 'muon_mag_mom_anomaly', struct('value', 1.16592089e-3, 'uncert', 0.00000063e-3, 'unit', ''), ... 'muon_mag_mom_to_Bohr_magneton_ratio', struct('value', -4.84197048e-3, 'uncert', 0.00000011e-3, 'unit', ''), ... 'muon_mag_mom_to_nuclear_magneton_ratio', struct('value', -8.89059705, 'uncert', 0.00000020, 'unit', ''), ... 'muon_mass', struct('value', 1.883531594e-28, 'uncert', 0.000000048e-28, 'unit', 'kg'), ... 'muon_mass_energy_equivalent', struct('value', 1.692833774e-11, 'uncert', 0.000000043e-11, 'unit', 'J'), ... 'muon_mass_energy_equivalent_in_MeV', struct('value', 105.6583745, 'uncert', 0.0000024, 'unit', 'MeV'), ... 'muon_mass_in_u', struct('value', 0.1134289257, 'uncert', 0.0000000025, 'unit', 'u'), ... 'muon_molar_mass', struct('value', 0.1134289257e-3, 'uncert', 0.0000000025e-3, 'unit', 'kgmol^-1'), ... 'muon_neutron_mass_ratio', struct('value', 0.1124545167, 'uncert', 0.0000000025, 'unit', ''), ... 'muon_proton_mag_mom_ratio', struct('value', -3.183345142, 'uncert', 0.000000071, 'unit', ''), ... 'muon_proton_mass_ratio', struct('value', 0.1126095262, 'uncert', 0.0000000025, 'unit', ''), ... 'muon_tau_mass_ratio', struct('value', 5.94649e-2, 'uncert', 0.00054e-2, 'unit', ''), ... 'natural_unit_of_action', struct('value', 1.054571800e-34, 'uncert', 0.000000013e-34, 'unit', 'Js'), ... 'natural_unit_of_action_in_eV_s', struct('value', 6.582119514e-16, 'uncert', 0.000000040e-16, 'unit', 'eVs'), ... 'natural_unit_of_energy', struct('value', 8.18710565e-14, 'uncert', 0.00000010e-14, 'unit', 'J'), ... 'natural_unit_of_energy_in_MeV', struct('value', 0.5109989461, 'uncert', 0.0000000031, 'unit', 'MeV'), ... 'natural_unit_of_length', struct('value', 386.15926764e-15, 'uncert', 0.00000018e-15, 'unit', 'm'), ... 'natural_unit_of_mass', struct('value', 9.10938356e-31, 'uncert', 0.00000011e-31, 'unit', 'kg'), ... 'natural_unit_of_momum', struct('value', 2.730924488e-22, 'uncert', 0.000000034e-22, 'unit', 'kgms^-1'), ... 'natural_unit_of_momum_in_MeV_over_c', struct('value', 0.5109989461, 'uncert', 0.0000000031, 'unit', 'MeV/c'), ... 'natural_unit_of_time', struct('value', 1.28808866712e-21, 'uncert', 0.00000000058e-21, 'unit', 's'), ... 'natural_unit_of_velocity', struct('value', 299792458, 'uncert', 0, 'unit', 'ms^-1'), ... 'neutron_Compton_wavelength', struct('value', 1.31959090481e-15, 'uncert', 0.00000000088e-15, 'unit', 'm'), ... 'neutron_Compton_wavelength_over2pi', struct('value', 0.21001941536e-15, 'uncert', 0.00000000014e-15, 'unit', 'm'), ... 'neutron_electron_mag_mom_ratio', struct('value', 1.04066882e-3, 'uncert', 0.00000025e-3, 'unit', ''), ... 'neutron_electron_mass_ratio', struct('value', 1838.68366158, 'uncert', 0.00000090, 'unit', ''), ... 'neutron_g_factor', struct('value', -3.82608545, 'uncert', 0.00000090, 'unit', ''), ... 'neutron_gyromag_ratio', struct('value', 1.83247172e8, 'uncert', 0.00000043e8, 'unit', 's^-1T^-1'), ... 'neutron_gyromag_ratio_over2pi', struct('value', 29.1646933, 'uncert', 0.0000069, 'unit', 'MHzT^-1'), ... 'neutron_mag_mom', struct('value', -0.96623650e-26, 'uncert', 0.00000023e-26, 'unit', 'JT^-1'), ... 'neutron_mag_mom_to_Bohr_magneton_ratio', struct('value', -1.04187563e-3, 'uncert', 0.00000025e-3, 'unit', ''), ... 'neutron_mag_mom_to_nuclear_magneton_ratio', struct('value', -1.91304273, 'uncert', 0.00000045, 'unit', ''), ... 'neutron_mass', struct('value', 1.674927471e-27, 'uncert', 0.000000021e-27, 'unit', 'kg'), ... 'neutron_mass_energy_equivalent', struct('value', 1.505349739e-10, 'uncert', 0.000000019e-10, 'unit', 'J'), ... 'neutron_mass_energy_equivalent_in_MeV', struct('value', 939.5654133, 'uncert', 0.0000058, 'unit', 'MeV'), ... 'neutron_mass_in_u', struct('value', 1.00866491588, 'uncert', 0.00000000049, 'unit', 'u'), ... 'neutron_molar_mass', struct('value', 1.00866491588e-3, 'uncert', 0.00000000049e-3, 'unit', 'kgmol^-1'), ... 'neutron_muon_mass_ratio', struct('value', 8.89248408, 'uncert', 0.00000020, 'unit', ''), ... 'neutron_proton_mag_mom_ratio', struct('value', -0.68497934, 'uncert', 0.00000016, 'unit', ''), ... 'neutron_proton_mass_difference', struct('value', 2.30557377e-30, 'uncert', 0.00000085e-30, 'unit', ''), ... 'neutron_proton_mass_difference_energy_equivalent', struct('value', 2.07214637e-13, 'uncert', 0.00000076e-13, 'unit', ''), ... 'neutron_proton_mass_difference_energy_equivalent_in_MeV', struct('value', 1.29333205, 'uncert', 0.00000048, 'unit', ''), ... 'neutron_proton_mass_difference_in_u', struct('value', 0.00138844900, 'uncert', 0.00000000051, 'unit', ''), ... 'neutron_proton_mass_ratio', struct('value', 1.00137841898, 'uncert', 0.00000000051, 'unit', ''), ... 'neutron_tau_mass_ratio', struct('value', 0.528790, 'uncert', 0.000048, 'unit', ''), ... 'neutron_to_shielded_proton_mag_mom_ratio', struct('value', -0.68499694, 'uncert', 0.00000016, 'unit', ''), ... 'Newtonian_constant_of_gravitation', struct('value', 6.67408e-11, 'uncert', 0.00031e-11, 'unit', 'm^3kg^-1s^-2'), ... 'Newtonian_constant_of_gravitation_over_h_bar_c', struct('value', 6.70861e-39, 'uncert', 0.00031e-39, 'unit', '(GeV/c^2)^-2'), ... 'nuclear_magneton', struct('value', 5.050783699e-27, 'uncert', 0.000000031e-27, 'unit', 'JT^-1'), ... 'nuclear_magneton_in_eV_over_T', struct('value', 3.1524512550e-8, 'uncert', 0.0000000015e-8, 'unit', 'eVT^-1'), ... 'nuclear_magneton_in_inverse_meters_per_tesla', struct('value', 2.542623432e-2, 'uncert', 0.000000016e-2, 'unit', 'm^-1T^-1'), ... 'nuclear_magneton_in_K_over_T', struct('value', 3.6582690e-4, 'uncert', 0.0000021e-4, 'unit', 'KT^-1'), ... 'nuclear_magneton_in_MHz_over_T', struct('value', 7.622593285, 'uncert', 0.000000047, 'unit', 'MHzT^-1'), ... 'Planck_constant', struct('value', 6.626070040e-34, 'uncert', 0.000000081e-34, 'unit', 'Js'), ... 'Planck_constant_in_eV_s', struct('value', 4.135667662e-15, 'uncert', 0.000000025e-15, 'unit', 'eVs'), ... 'Planck_constant_over2pi', struct('value', 1.054571800e-34, 'uncert', 0.000000013e-34, 'unit', 'Js'), ... 'Planck_constant_over2pi_in_eV_s', struct('value', 6.582119514e-16, 'uncert', 0.000000040e-16, 'unit', 'eVs'), ... 'Planck_constant_over2pi_times_c_in_MeV_fm', struct('value', 197.3269788, 'uncert', 0.0000012, 'unit', 'MeVfm'), ... 'Planck_length', struct('value', 1.616229e-35, 'uncert', 0.000038e-35, 'unit', 'm'), ... 'Planck_mass', struct('value', 2.176470e-8, 'uncert', 0.000051e-8, 'unit', 'kg'), ... 'Planck_mass_energy_equivalent_in_GeV', struct('value', 1.220910e19, 'uncert', 0.000029e19, 'unit', 'GeV'), ... 'Planck_temperature', struct('value', 1.416808e32, 'uncert', 0.000033e32, 'unit', 'K'), ... 'Planck_time', struct('value', 5.39116e-44, 'uncert', 0.00013e-44, 'unit', 's'), ... 'proton_charge_to_mass_quotient', struct('value', 9.578833226e7, 'uncert', 0.000000059e7, 'unit', 'Ckg^-1'), ... 'proton_Compton_wavelength', struct('value', 1.32140985396e-15, 'uncert', 0.00000000061e-15, 'unit', 'm'), ... 'proton_Compton_wavelength_over2pi', struct('value', 0.210308910109e-15, 'uncert', 0.000000000097e-15, 'unit', 'm'), ... 'proton_electron_mass_ratio', struct('value', 1836.15267389, 'uncert', 0.00000017, 'unit', ''), ... 'proton_g_factor', struct('value', 5.585694702, 'uncert', 0.000000017, 'unit', ''), ... 'proton_gyromag_ratio', struct('value', 2.675221900e8, 'uncert', 0.000000018e8, 'unit', 's^-1T^-1'), ... 'proton_gyromag_ratio_over2pi', struct('value', 42.57747892, 'uncert', 0.00000029, 'unit', 'MHzT^-1'), ... 'proton_mag_mom', struct('value', 1.4106067873e-26, 'uncert', 0.0000000097e-26, 'unit', 'JT^-1'), ... 'proton_mag_mom_to_Bohr_magneton_ratio', struct('value', 1.5210322053e-3, 'uncert', 0.0000000046e-3, 'unit', ''), ... 'proton_mag_mom_to_nuclear_magneton_ratio', struct('value', 2.7928473508, 'uncert', 0.0000000085, 'unit', ''), ... 'proton_mag_shielding_correction', struct('value', 25.691e-6, 'uncert', 0.011e-6, 'unit', ''), ... 'proton_mass', struct('value', 1.672621898e-27, 'uncert', 0.000000021e-27, 'unit', 'kg'), ... 'proton_mass_energy_equivalent', struct('value', 1.503277593e-10, 'uncert', 0.000000018e-10, 'unit', 'J'), ... 'proton_mass_energy_equivalent_in_MeV', struct('value', 938.2720813, 'uncert', 0.0000058, 'unit', 'MeV'), ... 'proton_mass_in_u', struct('value', 1.007276466879, 'uncert', 0.000000000091, 'unit', 'u'), ... 'proton_molar_mass', struct('value', 1.007276466879e-3, 'uncert', 0.000000000091e-3, 'unit', 'kgmol^-1'), ... 'proton_muon_mass_ratio', struct('value', 8.88024338, 'uncert', 0.00000020, 'unit', ''), ... 'proton_neutron_mag_mom_ratio', struct('value', -1.45989805, 'uncert', 0.00000034, 'unit', ''), ... 'proton_neutron_mass_ratio', struct('value', 0.99862347844, 'uncert', 0.00000000051, 'unit', ''), ... 'proton_rms_charge_radius', struct('value', 0.8751e-15, 'uncert', 0.0061e-15, 'unit', 'm'), ... 'proton_tau_mass_ratio', struct('value', 0.528063, 'uncert', 0.000048, 'unit', ''), ... 'quantum_of_circulation', struct('value', 3.6369475486e-4, 'uncert', 0.0000000017e-4, 'unit', 'm^2s^-1'), ... 'quantum_of_circulation_times2', struct('value', 7.2738950972e-4, 'uncert', 0.0000000033e-4, 'unit', 'm^2s^-1'), ... 'Rydberg_constant', struct('value', 10973731.568508, 'uncert', 0.000065, 'unit', 'm^-1'), ... 'Rydberg_constant_times_c_in_Hz', struct('value', 3.289841960355e15, 'uncert', 0.000000000019e15, 'unit', 'Hz'), ... 'Rydberg_constant_times_hc_in_eV', struct('value', 13.605693009, 'uncert', 0.000000084, 'unit', 'eV'), ... 'Rydberg_constant_times_hc_in_J', struct('value', 2.179872325e-18, 'uncert', 0.000000027e-18, 'unit', 'J'), ... 'Sackur_Tetrode_constant_1_K_100_kPa', struct('value', -1.1517084, 'uncert', 0.0000014, 'unit', ''), ... 'Sackur_Tetrode_constant_1_K_101325_kPa', struct('value', -1.1648714, 'uncert', 0.0000014, 'unit', ''), ... 'second_radiation_constant', struct('value', 1.43877736e-2, 'uncert', 0.00000083e-2, 'unit', 'mK'), ... 'shielded_helion_gyromag_ratio', struct('value', 2.037894585e8, 'uncert', 0.000000027e8, 'unit', 's^-1T^-1'), ... 'shielded_helion_gyromag_ratio_over2pi', struct('value', 32.43409966, 'uncert', 0.00000043, 'unit', 'MHzT^-1'), ... 'shielded_helion_mag_mom', struct('value', -1.074553080e-26, 'uncert', 0.000000014e-26, 'unit', 'JT^-1'), ... 'shielded_helion_mag_mom_to_Bohr_magneton_ratio', struct('value', -1.158671471e-3, 'uncert', 0.000000014e-3, 'unit', ''), ... 'shielded_helion_mag_mom_to_nuclear_magneton_ratio', struct('value', -2.127497720, 'uncert', 0.000000025, 'unit', ''), ... 'shielded_helion_to_proton_mag_mom_ratio', struct('value', -0.7617665603, 'uncert', 0.0000000092, 'unit', ''), ... 'shielded_helion_to_shielded_proton_mag_mom_ratio', struct('value', -0.7617861313, 'uncert', 0.0000000033, 'unit', ''), ... 'shielded_proton_gyromag_ratio', struct('value', 2.675153171e8, 'uncert', 0.000000033e8, 'unit', 's^-1T^-1'), ... 'shielded_proton_gyromag_ratio_over2pi', struct('value', 42.57638507, 'uncert', 0.00000053, 'unit', 'MHzT^-1'), ... 'shielded_proton_mag_mom', struct('value', 1.410570547e-26, 'uncert', 0.000000018e-26, 'unit', 'JT^-1'), ... 'shielded_proton_mag_mom_to_Bohr_magneton_ratio', struct('value', 1.520993128e-3, 'uncert', 0.000000017e-3, 'unit', ''), ... 'shielded_proton_mag_mom_to_nuclear_magneton_ratio', struct('value', 2.792775600, 'uncert', 0.000000030, 'unit', ''), ... 'speed_of_light_in_vacuum', struct('value', 299792458, 'uncert', 0, 'unit', 'ms^-1'), ... 'standard_acceleration_of_gravity', struct('value', 9.80665, 'uncert', 0, 'unit', 'ms^-2'), ... 'standard_atmosphere', struct('value', 101325, 'uncert', 0, 'unit', 'Pa'), ... 'standard_state_pressure', struct('value', 100000, 'uncert', 0, 'unit', 'Pa'), ... 'Stefan_Boltzmann_constant', struct('value', 5.670367e-8, 'uncert', 0.000013e-8, 'unit', 'Wm^-2K^-4'), ... 'tau_Compton_wavelength', struct('value', 0.697787e-15, 'uncert', 0.000063e-15, 'unit', 'm'), ... 'tau_Compton_wavelength_over2pi', struct('value', 0.111056e-15, 'uncert', 0.000010e-15, 'unit', 'm'), ... 'tau_electron_mass_ratio', struct('value', 3477.15, 'uncert', 0.31, 'unit', ''), ... 'tau_mass', struct('value', 3.16747e-27, 'uncert', 0.00029e-27, 'unit', 'kg'), ... 'tau_mass_energy_equivalent', struct('value', 2.84678e-10, 'uncert', 0.00026e-10, 'unit', 'J'), ... 'tau_mass_energy_equivalent_in_MeV', struct('value', 1776.82, 'uncert', 0.16, 'unit', 'MeV'), ... 'tau_mass_in_u', struct('value', 1.90749, 'uncert', 0.00017, 'unit', 'u'), ... 'tau_molar_mass', struct('value', 1.90749e-3, 'uncert', 0.00017e-3, 'unit', 'kgmol^-1'), ... 'tau_muon_mass_ratio', struct('value', 16.8167, 'uncert', 0.0015, 'unit', ''), ... 'tau_neutron_mass_ratio', struct('value', 1.89111, 'uncert', 0.00017, 'unit', ''), ... 'tau_proton_mass_ratio', struct('value', 1.89372, 'uncert', 0.00017, 'unit', ''), ... 'Thomson_cross_section', struct('value', 0.66524587158e-28, 'uncert', 0.00000000091e-28, 'unit', 'm^2'), ... 'triton_electron_mass_ratio', struct('value', 5496.92153588, 'uncert', 0.00000026, 'unit', ''), ... 'triton_g_factor', struct('value', 5.957924920, 'uncert', 0.000000028, 'unit', ''), ... 'triton_mag_mom', struct('value', 1.504609503e-26, 'uncert', 0.000000012e-26, 'unit', 'JT^-1'), ... 'triton_mag_mom_to_Bohr_magneton_ratio', struct('value', 1.6223936616e-3, 'uncert', 0.0000000076e-3, 'unit', ''), ... 'triton_mag_mom_to_nuclear_magneton_ratio', struct('value', 2.978962460, 'uncert', 0.000000014, 'unit', ''), ... 'triton_mass', struct('value', 5.007356665e-27, 'uncert', 0.000000062e-27, 'unit', 'kg'), ... 'triton_mass_energy_equivalent', struct('value', 4.500387735e-10, 'uncert', 0.000000055e-10, 'unit', 'J'), ... 'triton_mass_energy_equivalent_in_MeV', struct('value', 2808.921112, 'uncert', 0.000017, 'unit', 'MeV'), ... 'triton_mass_in_u', struct('value', 3.01550071632, 'uncert', 0.00000000011, 'unit', 'u'), ... 'triton_molar_mass', struct('value', 3.01550071632e-3, 'uncert', 0.00000000011e-3, 'unit', 'kgmol^-1'), ... 'triton_proton_mass_ratio', struct('value', 2.99371703348, 'uncert', 0.00000000022, 'unit', ''), ... 'unified_atomic_mass_unit', struct('value', 1.660539040e-27, 'uncert', 0.000000020e-27, 'unit', 'kg'), ... 'von_Klitzing_constant', struct('value', 25812.8074555, 'uncert', 0.0000059, 'unit', 'ohm'), ... 'weak_mixing_angle', struct('value', 0.2223, 'uncert', 0.0021, 'unit', ''), ... 'Wien_frequency_displacement_law_constant', struct('value', 5.8789238e10, 'uncert', 0.0000034e10, 'unit', 'HzK^-1'), ... 'Wien_wavelength_displacement_law_constant', struct('value', 2.8977729e-3, 'uncert', 0.0000017e-3, 'unit', 'mK')); end % if phc = phc_val; end