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「HF」の共起表現一覧(2語右で並び替え)

該当件数 : 127



Hydrofluoric acid ( HF) is a solution of hydrogen fluoride in water.
HF is a highly corrosive and toxic gas, even etchin
TaF5 is used in combination with HF as a catalyst for the alkylation of alkanes and
Near or above room temperature, HF is a colorless gas.
lactate gluconate can be used to help neutralize HF (hydrofluoric acid) poisoning.
st frequently used frequencies by the group were HF, UHF, and VHF.
He did research under H.F. Baker, and in 1931 took a position at the Unive
fairs broadcast missions in the standard AM, FM, HF, TV and military communications bands.
mpetitors, like the Subaru Impreza, Lancia Delta HF Integrale, and Ford Focus.
mulating these phenomena using a high-frequency ( HF) radar and study the ionospheric response with b
included a Stevenson screen, office guttering, a HF radio antennae, signal processor, and satellite
moisture at ambient temperature, forming UO2 and HF, which are very corrosive; it is thus a less fav
tern effects to those seen when harmonics of the HF transmitter are generated in the front end.
nters of 1885 to 1887 he studied petrology under HF Rosenbusch at Heidelberg, and during the summers
In high-frequency ( HF) radio automatic link establishment, the wildcar
A high frequency ( HF) transmitter, automatically tunable over a wide
crossing the boundary from the MF band into the HF radio band.
SATERN routinely operates on VHF and HF ham bands, but may operate any mode on any amate
Solutions of GaF3 in HF can be evaporated to form the trihydrate, GaF3.3
ionosphere that operates in the High Frequency ( HF) bands between 8 and 22 MHz.
n hemisphere that operate in the High Frequency ( HF) bands between 8 and 22 MHz.
Bi2O3 + 6 HF → BiF3 + 3 H2O
C6H5CCl3 + 3 HF → C6H5CF3 + 3 HCl
CH3COCl + 4 HF → CF3COF + 3 H2 + HCl
CH3SO3H + 4 HF → CF3SO2F + H2O + 1.5 H2
An MF or HF radio choke for tenths of an Ampere and several
HC(O)F → HF + CO
international: microwave radio relay and HF radiotelephone communications to Comoros (2001)
A modern Icom M700Pro two-way radio for marine HF radio communications.
ia where he set up his own porcelain plant, the H.F. Coors Company.
n and was designed so that the relative signs of hf coupling constants in crystals as well as separa
The resulting HF is converted into fluorine, fluorocarbons, and d
HF Financial Corp. has assets totaling $987.2 milli
ome Federal Bank is a wholly owned subsidiary of HF Financial Corp., which is traded on the NASDAQ u
HF Financial Corp., the parent company for financia
rust (Norwegian: Rikshospitalet-Radiumhospitalet HF) was created in 2005 when Rikshospitalet merged
CrCl3 + 3 HF → CrF3 + 3 HCl
In 1852 H.F. Stannius experimented on the heart.
e right and the second to the left, meaning that HF is extensively dissociated, but that the tight i
This new HF receiver features a frequency range covering the
l radio set that eventually "became the standard HF receiver for all the armed forces and monitoring
for synthesis tools which automate the design of HF (high frequency) circuits from RF to microwave t
sphate fertilizers, resulting from the attack of HF (derived from fluorapatite protonolysis) on sili
international: HF radiotelephone from Saint Helena to Ascension, w
London H.F. & G Witherby Ltd. 1953
ture, to the Great Nafud in Quest of the Oryx", H.F. & G. Witherby Ltd., London, 1935
London, H.F. & G. Witherby.
H.F. & G. Witherby Ltd: London.
GaF3 can be prepared by reacting F2 or HF with Ga2O3 or by thermal decomposition of (NH4)3
er, it is possible sometimes for harmonics of an HF transmitter generated within a TV set to enter t
Keast, Allen; Recher, H.F.; Ford, H.; & Saunders, D. (Eds).
2SiF6, H2TiF6, N2H4, HN3, HBr(aq), HCl(aq), HCN, HF(aq) HBr, HCl, HF, HI, H2O2, H2Se, H2S, H2Te, HI(
r modern iron propellers - the General Whitney, H.F. Dimock, Herman Winter and H.M. Whitney, and the
Like related tetrahalides of Titanium and Hf, ZrBr4 hydrolyzes in air to give oxy-halides, wi
It is "highly soluble in anhydrous HF and increases the conductivity of the electrolyt
Early experiments included HF heater induced air-glow, heater-induced spread F
The first studies were made of HF heater induced airglow, heater-induced spread F,
Despite its weakness as an acid in water, HF is inherently very corrosive, attacking glass.
An example is the Lancia Delta HF Turbo Integrale which was offered in at least 19
ational physics and chemistry, the Hartree-Fock ( HF) method is an approximate method for the determi
here; the former involving neutralization of the HF to its sodium salt, sodium fluoride.
As a manager of HF whose job is to earn absolute return, one can em
2 HF + KOH → KHF2 + H2O
phia area media entrepreneur and philanthropist H.F. “Gerry” Lenfest serves as Chairman of the Board
Unlike the other hydrogen halides, HF is lighter than air and it is particularly penet
(and New Zealand) is rather poor as the nearest HF (and longwave) time signal services are BPM (Chi
, T., Nuth, C., Brandt, O., Barrand, N.E., Aas, H.F. and Luckman, A.J. (2007).
Shore-base HF radar measuring waves and surface currents out t
ed him through the development of LF (<135 kHz), HF (13.56 MHz) and UHF (860-960 MHz) RFID products
e formation of soluble fluorosilicates, although HF is more effective.
This results from strong hydrogen bonding in HF, which must be overcome before dissociation is p
HF + NaF ⇌ NaHF2
HF + NaOH → NaF + H2O
It decomposes at room temperature to form HF and O
ill form involatile complex fluorides, while the HF and O2 are unreactive.
In 1850 he became engaged to Miss HF Bennett, of a Somersetshire family, a niece of G
Starkey, H.F. (1990), Old Runcorn, Halton: Halton Borough Cou
The station transmitted in the HF band on 4525 kHz with 5 kW.
The station transmitted in the HF band on 3170 kHz with 1 kW.
cated at Guayaquil, Ecuador and transmits in the HF band on 3810 and 7600 kHz.
The SCR-299 was a complete mobile HF station on frequencies from 2 to 8 MHz (and 1-18
F band on 50 kHz with a power of 7 kW and in the HF band on 2500 kHz with 1 kW.
Bergen Hospital Trust (Norwegian: Helse Bergen HF) is one of the five health trusts owned by the W
Below −83.6 °C (−118.5 °F), HF forms orthorhombic crystals, consisting of zig-z
Pb(OH)2 + 2 HF → PbF2 + 2 H2O
Allston Collins, Wilkie Collins, Marcus Stone, H.F. Chorley Percy Fitzgerald, John Leech, Alexander
Arabic Numeral (Any Integer) to H.F. (1960), piano(s) or gong(s) or ensembles of at
obium, tantalum, and chromium, where Ti, Zr, and Hf are preferable.
Gary E.J. Bold: Antipodal HF radio propagation.
The transmitter sweeps all or part of the HF frequency range, transmitting short pulses.
RbOH + HF → RbF + H2O
The frequency change was necessary due to an ITU HF global reallocation conference where the frequen
orth Norway Trust (Norwegian: Sykehusapotek Nord HF, Northern Sami: Davvi Buohcceviessoapotehka) is
SbCl5 + 5 HF → SbF5 + 5 HCl
s is considered a key band in building a winning HF contesting score during any part of the sunspot
CH2S + 6 F2 → CF4 + 2 HF + SF6
ctive cations such as those derived from Ti, Zr, Hf, and Si do in fact abstract fluoride from BF4−,
to predict the probability of a high frequency ( HF) radio signal path between two points on the Ear
Its main purpose was to intercept HF radio signals for French intelligence services.
roduced by MMM Publishing under license from CCP hf and sold via the EVE Online website.
s a Very Low Frequency (VLF) and High Frequency ( HF) transmitter station operated by the United Stat
it became the Royal Navy's major High frequency ( HF) receiver station, its primary function was to r
GCHQ's Composite Signals Organisation as a large HF listening station.
l Navy introduced a variation on the shore based HF DF stations in 1944 to track U-boats in the Nort
FSO3H hydrolyzes slowly to HF and sulfuric acid.
For example, some very long range HF radar systems may have a transmitter and receive
Blackham, G.J. Bonnor, H.F. Boyle, T.U.
He played one season in 1985-86 for Lulea HF of the SEL.
Given that the head loss hf expresses the pressure loss Δp as the height of
This special station will be operative in the HF bands the time that lasts the entrusted pursuit.
rom the anode consumption and hydrogen fluoride ( HF) from the cryolite and flux.
t in 2004-05, he went overseas to play for Lulea HF of the Swedish Elite League, where he posted 14
hf is the friction loss (in head) of the pipe.
hf is the convection coefficient of the fin
, eldest daughter of James Sant RA and widow of H.F. Nalder; they had one son and four daughters.
TiCl4 + 4 HF → TiF4 + 4 HCl
T Communications under a PPP contract to provide HF Communications to the Ministry of Defence via th
e frequencies that Marconi was using was not the HF or UHF that Hertz experimented with.
(NH4)3VF6 → 3 NH3 + 3 HF + VF3
ometres (250 mi) in diameter, to scan the sky at HF and VHF frequencies.
tor or a shipboard marine radio operator with an HF radio wanted to estimate which frequencies might
to duct wave propagation theory, high-frequency ( HF) shock waves can cause the crystal particles in
For most amateurs, the HF bands were much easier to use and HF antennas ne
This is typical of the HF model, which usually describes closed shell syst
A tracking HF receiver which can automatically track the frequ
HF is widely used in the petrochemical industry and
The HF molecules, with a short H-F bond of 95 pm, are l
                                                                                                    


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