NSR Query Results


Output year order : Descending
Format : Normal

NSR database version of May 21, 2024.

Search: Author = G.V.Danilyan

Found 41 matches.

Back to query form



2023DA21      Phys.Atomic Nuclei 86, 595 (2023); Erratum Phys.Atomic Nuclei 86, 1541 (2023)

G.V.Danilyan

On Observed Effects in Experiments on the Fissile Nuclei Rotaton (ROT Effects)

NUCLEAR REACTIONS 235U(polarized n, F), E cold; analyzed available data; deduced the effects indicating the rotation of a fissile nucleus, the asymmetry of the coincidence count between the particle detectors accompanying the fission and the fragment detectors when reversing the direction of polarization of the neutron beam causing the fission, the shift of the angular distribution in the direction or against the direction of the nucleus deformation rotation axis.

doi: 10.1134/S1063778823050113
Citations: PlumX Metrics


2019DA12      Phys.Atomic Nuclei 82, 250 (2019)

G.V.Danilyan

On Ternary Fission Induced by Neutrons

doi: 10.1134/s1063778819030050
Citations: PlumX Metrics


2018DA08      JETP Lett. 107, 216 (2018)

G.V.Danilyan

On the Relative Signs of "ROT-Effects" in Ternary and Binary Fission of 233U and 235U Nuclei Induced by Polarized Cold Neutrons

NUCLEAR REACTIONS 233,235U(n, F), E cold; analyzed available data; deduced signs of the ROT-effects in ternary fission.

doi: 10.1134/S002136401804001X
Citations: PlumX Metrics


2014DA10      Phys.Atomic Nuclei 77, 677 (2014); Yad.Fiz. 77, 715 (2014)

G.V.Danilyan, J.Klenke, Yu.N.Kopach, V.A.Krakhotin, V.V.Novitsky, V.S.Pavlov, P.B.Shatalov

Effects of rotation of fissioning nuclei in the angular distributions of prompt neutrons and gamma rays originating from the polarized-neutron-induced fission of 233U and 235U nuclei

NUCLEAR REACTIONS 233,235U(n, F), E cold; measured reaction products, Eγ, Iγ, En, In; deduced σ(θ).

doi: 10.1134/S1063778814050020
Citations: PlumX Metrics


2011DA07      Phys.Atomic Nuclei 74, 671 (2011); Yad.Fiz. 74, 697 (2011)

G.V.Danilyan, J.Klenke, V.A.Krakhotin, Yu.N.Kopach, V.V.Novitsky, V.S.Pavlov, P.B.Shatalov

T-odd angular correlations in the emission of prompt gamma rays and neutrons in nuclear fission induced by polarized neutrons

NUCLEAR REACTIONS 235U(n, F), E=0.00005 - 0.025 eV; measured fission products, prompt neutrons TOF; deduced consistency for ROT effect values and absence of TRI effect.

doi: 10.1134/S1063778811050061
Citations: PlumX Metrics


2010DA11      Phys.Atomic Nuclei 73, 1116 (2010); Yad.Fiz. 73, 1155 (2010)

G.V.Danilyan, J.Klenke, V.A.Krakhotin, V.V.Novitsky, V.S.Pavlov, P.B.Shatalov

Searches for T-odd correlations in the emission of prompt neutrons in the polarized-neutron-induced fission of 235U nuclei

NUCLEAR REACTIONS 235U(n, F), E not given; measured reaction fragments, Eγ, Iγ, En, In; deduced correlation coefficients.

doi: 10.1134/S1063778810070045
Citations: PlumX Metrics


2009DA13      Phys.Lett. B 679, 25 (2009)

G.V.Danilyan, P.Granz, V.A.Krakhotin, F.Mezei, V.V.Novitsky, V.S.Pavlov, M.Russina, P.B.Shatalov, T.Wilpert

Rotational effect of fissile nucleus in binary fission of 235U induced by cold polarized neutrons

NUCLEAR REACTIONS 235U(polarized n, F), E=low; measured Eγ, Iγ, En, In, γ(fragment)-coin; analyzed prompt fission γ-ray angular correlations; deduced asymmetry.

doi: 10.1016/j.physletb.2009.06.068
Citations: PlumX Metrics


2008DA17      Phys.Atomic Nuclei 71, 2003 (2008); Yad.Fiz. 71, 2036 (2008)

G.V.Danilyan, T.Wilpert, P.Granz, V.A.Krakhotin, F.Mezei, V.V.Novitsky, V.S.Pavlov, M.V.Russina, P.B.Shatalov

Angular correlations in emission of prescission neutrons from 235U fission induced by slow polarized neutrons

doi: 10.1134/S1063778808120016
Citations: PlumX Metrics


2006DA18      Phys.Atomic Nuclei 69, 1158 (2006)

G.V.Danilyan, A.V.Fedorov, V.A.Krakhotin, V.S.Pavlov, E.V.Brakhman, I.L.Karpikhin, E.I.Korobkina, R.Golub, T.Wilpert, M.V.Russina

Search for Scission Neutrons Using Specific Angular Correlations in 235U Fission Induced by Slow Polarized Neutrons

NUCLEAR REACTIONS 235U(polarized n, F), E=low; analyzed prompt fission neutrons angular correlations, asymmetries.

doi: 10.1134/S1063778806070106
Citations: PlumX Metrics


2004BR47      Pisma Zh.Eksp.Teor.Fiz. 80, 803 (2004); JETP Lett. 80, 675 (2004)

E.V.Brakhman, G.V.Danilyan, A.V.Fedorov, I.L.Karpikhin, V.A.Krakhotin, V.S.Pavlov, R.Golub, E.I.Korobkina, T.Wilpert

Search for P-odd Asymmetry of Prompt Neutron Emission in 235U Fission Induced by Cold Polarized Neutrons

NUCLEAR REACTIONS 235U(polarized n, F), E=cold; measured prompt neutron emission asymmetry.

doi: 10.1134/1.1862792
Citations: PlumX Metrics


2002DA28      Pisma Zh.Eksp.Teor.Fiz. 76, 825 (2002); JETP Letters 76, 697 (2002)

G.V.Danilyan, V.A.Krakhotin, V.S.Pavlov, A.V.Fedorov

Left-Right Asymmetry of the Angular Distribution of Prompt Neutrons from 235U Fission Induced by Polarized Thermal Neutrons

NUCLEAR REACTIONS 235U(polarized n, F), E=thermal; measured prompt neutrons left-right asymmetry.

doi: 10.1134/1.1556207
Citations: PlumX Metrics


2002JE06      Yad.Fiz. 65, 662 (2002); Phys.Atomic Nuclei 65, 630 (2002)

P.Jesinger, A.Kotzle, F.Gonnenwein, M.Mutterer, J.von Kalben, G.V.Danilyan, V.S.Pavlov, G.A.Petrov, A.M.Gagarski, W.H.Trzaska, S.M.Soloviev, V.V.Nesvizhevsky, O.Zimmer

Angular Correlations in Ternary Fission Induced by Polarized Neutrons

NUCLEAR REACTIONS 233,235U(polarized n, F), E=low; measured Eα, α-particle and fission fragment angular correlations, triple correlation with beam polarization. Ternary fission.

doi: 10.1134/1.1471264
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23106.


2001DA29      Pisma Zh.Eksp.Teor.Fiz. 74, 448 (2001); JETP Lett. 74, 408 (2001)

G.V.Danilyan, V.A.Krakhotin, V.S.Pavlov, A.V.Fedorov

Search for sp Interference in the Emission of Prompt Neutrons from 235U Fission Induced by Polarized Thermal Neutrons

NUCLEAR REACTIONS 235U(polarized n, F), E=thermal; measured prompt fission neutron spectra, angular distributions; deduced sp interference effects.

doi: 10.1134/1.1429995
Citations: PlumX Metrics


2000DA24      Yad.Fiz. 63, No 8, 1413 (2000); Phys.Atomic Nuclei 63, 1337 (2000)

G.V.Danilyan

Angular Correlations in Nuclear Fission

doi: 10.1134/1.1307457
Citations: PlumX Metrics


2000DA25      Yad.Fiz. 63, No 9, 1759 (2000); Phys.Atomic Nuclei 63, 1671 (2000)

G.V.Danilyan, A.M.Fedorov, A.M.Gagarski, F.Goennenwein, P.Jesinger, J.von Kalben, A.Kotzle, E.I.Korobkina, I.T.Krasnoshchekova, M.Mutterer, V.V.Nesvizhevsky, S.R.Neumaier, Yu.B.Novozhilov, V.S.Pavlov, G.A.Petrov, V.I.Petrova, S.M.Solovyev, W.H.Trzaska, O.Zimmer

Left-Right Asymmetry of the Angular Distribution of Long-Range Alpha Particles from Ternary 235U Fission Induced by Cold Polarized Neutrons

NUCLEAR REACTIONS 233,235U(polarized n, F), E=0.0017 eV; measured (fragment)α-coin following ternary fission, α angular distribution, correlation coefficient. Effect of nuclear resonances discussed.

doi: 10.1134/1.1312903
Citations: PlumX Metrics


2000DA32      Pisma Zh.Eksp.Teor.Fiz. 72, 859 (2000); JETP Lett. 72, 593 (2000); Erratum JETP Lett. 73, 114 (2001)

G.V.Danilyan, V.A.Krakhotin, V.S.Pavlov, A.V.Fedorov, E.I.Korobkina, E.Lelievre-Berna

Search for T-Odd Left-Right Asymmetry of Prompt Neutron Emission in Binary Fission of the 233U and 239Pu Nuclei by Slow Polarized Neutrons

NUCLEAR REACTIONS 233U(polarized n, F), E=thermal; 239Pu(polarized n, F), E=150 meV; measured neutron spectra vs angle, fission fragments time of flight, (fission)(neutron)-coin, asymmetry coefficients.

doi: 10.1134/1.1351196
Citations: PlumX Metrics


1999DA21      Pisma Zh.Eksp.Teor.Fiz. 70, 561 (1999); JETP Lett. 70, 565 (1999)

G.V.Danilyan

On the Left-Right Asymmetry of the Angular Distribution of α Particles from Ternary Nuclear Fission by Polarized Neutrons

NUCLEAR REACTIONS 233,235U, 239Pu(polarized n, F), E not given; calculated ternary fission correlation coefficients; deduced implications for observation of time-reversal asymmetry.

doi: 10.1134/1.568215
Citations: PlumX Metrics


1999JE08      Yad.Fiz. 62, No 9, 1723 (1999); Phys.Atomic Nuclei 62, 1608 (1999)

P.Jesinger, G.V.Danilyan, A.M.Gagarsky, P.Geltenbort, F.Goennenwein, A.Kotzle, E.I.Korobkina, M.Mutterer, V.Nesvizhevsky, S.R.Neumaier, V.S.Pavlov, G.A.Petrov, V.I.Petrova, K.Schmidt, V.B.Shvachkin, O.Zimmer

Interference Effect in the Angular Distribution of Outgoing Particles in Ternary Fission Induced by Cold Polarized Neutrons

NUCLEAR REACTIONS 233U(polarized n, F), E=low; measured (fragment)α-coin following ternary fission; deduced asymmetry factor, interference effect.


1994GO02      Nucl.Phys. A567, 303 (1994)

F.Gonnenwein, A.V.Belozerov, A.G.Beda, S.I.Burov, G.V.Danilyan, A.N.Martemyanov, V.S.Pavlov, V.A.Shchenev, L.N.Bondarenko, Yu.A.Mostovoi, P.Geltenbort, J.Last, K.Schreckenbach

Parity Violation in Ternary Fission

NUCLEAR REACTIONS 233U, 239Pu(polarized n, F), E=cold; measured correlation between neutron spin, fragment momentum for binary, ternary fission. 234U, 240Pu deduced ratio of parity-violating asymmetries for ternary relative to binary fission.

doi: 10.1016/0375-9474(94)90150-3
Citations: PlumX Metrics


1991BE37      Pisma Zh.Eksp.Teor.Fiz. 54, 136 (1991); JETP Lett.(USSR) 54, 132 (1991)

A.V.Belozerov, A.G.Beda, S.I.Burov, G.V.Danilyan, A.N.Martemyanov, V.S.Pavlov, V.A.Shchenev, L.H.Bondarenko, Yu.A.Mostovoi, P.G.Geltenbort, J.Last, K.Schreckenbach, F.Gonnenwein

Ratio of the P-Odd Asymmetry Coefficients in the Separation of Fragments in Double and Triple Fission of U-233 Nuclei by Polarized Neutrons

NUCLEAR REACTIONS 233U(polarized n, F), E=reactor; measured fission fragment P-odd asymmetry coefficients; deduced double, triple fission channel equivalence.


1990BE20      Nucl.Phys. A513, 53 (1990)

A.G.Beda, S.I.Burov, L.N.Bondarenko, G.V.Danilyan, P.Geltenbort, F.Gonnenwein, V.L.Kuznetsov, A.N.Martemyanov, Yu.A.Mostovoy, K.Schreckenbach

Parity-Violating Asymmetry in the Resonance Scattering of 7.646 MeV γ-Rays from 56Fe(n(pol), γ0)57Fe by 205Tl Nuclei

NUCLEAR REACTIONS 205Tl(polarized γ, γ'), E(γ)=7.646 MeV; measured parity violation asymmetry in resonance scattering; deduced α parameter. Circularly polarized γ-rays from 56Fe(polarized n, γ), thermal neutrons, BG0 detectors.

doi: 10.1016/0375-9474(90)90342-J
Citations: PlumX Metrics


1990BE27      Pisma Zh.Eksp.Teor.Fiz. 51, 10 (1990); JETP Lett.(USSR) 51, 10 (1990)

A.V.Belozerov, A.G.Beda, L.N.Bondarenko, S.I.Burov, G.V.Danilyan, P.G.Geltenbort, F.Gennenvain, A.N.Martemyanov, Yu.A.Mostovoi, V.S.Pavlov, K.Schreckenbach

Ratio of P Odd Asymmetry of Separation of Fission Fragments in Binary and Ternary Fission of Pu-239 by Polarized Neutrons

NUCLEAR REACTIONS 239Pu(polarized n, F), E=thermal; measured fission fragment P-odd asymmetry.

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22232.


1989BE09      Yad.Fiz. 49, 326 (1989)

A.V.Belozerov, B.D.Vodennikov, G.V.Danilyan, E.I.Korobkina, V.S.Pavlov, Yu.F.Pevchev, A.G.Sadchikov, S.M.Solovyev, A.K.Churakov

P-Odd Asymmetry of Fragments from 239Pu Ternary Fission Induced by Polarized Thermal Neutrons

NUCLEAR REACTIONS 239Pu(polarized n, F), E=thermal; measured fission associated P-odd asymmetry factor; deduced ternary to binary P-odd asymmetry fission ratio.


1989BE45      Nucl.Instrum.Methods Phys.Res. A284, 77 (1989)

A.G.Beda, S.I.Burov, L.N.Bondarenko, G.V.Danilyan, P.Geltenbort, F.Gonnenwein, V.L.Kuznetsov, A.N.Martemyanov, Yu.A.Mostovoy, K.Schreckenbach

Investigation of the P-Odd Asymmetry in the Resonance Scattering of Neutron Capture Gamma-Rays

NUCLEAR REACTIONS 112Cd, 118Sn, 139La, 141Pr, 142Nd, 205Tl, 208Pb(polarized n, γ), E=reactor; measured Eγ, γ CP; deduced parity nonconserving asymmetry limits.

doi: 10.1016/0168-9002(89)90252-0
Citations: PlumX Metrics


1984BO30      J.Phys.(Paris), Colloq.C3, 81 (1984)

L.N.Bondarenko, S.V.Zhukov, V.L.Kuznetsov, Yu.A.Mostovoy, A.G.Beda, B.D.Vodennikov, G.V.Danilyan, V.P.Dronyaev, V.A.Kutsenko, V.V.Novitsky, V.S.Pavlov, V.M.Kolobashkin, E.I.Korobkina, Yu.F.Pevchev, A.G.Sadchikov

Parity Non-Conserving Asymmetry of Longitudinally Polarized Thermal Neutrons Propagation

NUCLEAR REACTIONS 233U, 207Pb, Pb, 232Th, Zr, Br(polarized n, X), E=thermal; measured asymmetry, parity nonconserving component; deduced relative σ difference for opposite helicity. Longitudinal beam polarization.


1983BO31      Pisma Zh.Eksp.Teor.Fiz. 38, 141 (1983); JETP Lett.(USSR) 38, 168 (1983)

L.N.Bondarenko, S.V.Zhukov, V.L.Kuznetsov, Yu.A.Mostovoi, A.G.Beda, B.D.Vodennikov, G.V.Danilyan, V.P.Dronyaev, V.A.Kutsenko, V.V.Novitsky, V.S.Pavlov, V.M.Kolobashkin, E.I.Korobkina, Yu.F.Pevchev, A.G.Sadchikov

P-Odd Symmetry in the Transmission of Longitudinally Polarized Thermal Neutrons by Uranium-233

NUCLEAR REACTIONS 233U(polarized n, X), E=thermal; measured transmission, σ for opposite neutron helicities; deduced parity violation effect.


1978BO41      Probl.Yad.Fiz.Kosm.Luchei 8, 93 (1978)

S.P.Borovlev, G.V.Danilyan, V.V.Novitskij, V.S.Pavlov

Circular Polarization of γ Rays in the 135Ba(n, γ0) and 137Ba(n, γ0) Reactions on Polarized Thermal Neutrons

NUCLEAR REACTIONS 135,137Ba(polarized n, γ), E=thermal; measured γ CP. 136,138Ba resonances deduced J, π, γ-multipolarity. Enriched targets, NaI(Tl) detectors.


1978DA01      Yad.Fiz. 27, 42 (1978); Sov.J.Nucl.Phys. 27, 21 (1978)

G.V.Danilyan, B.D.Vodennikov, V.P.Dronyaev, V.V.Novitskii, V.S.Pavlov, S.P.Borovlev

Parity Violation in Fission

NUCLEAR REACTIONS 235U, 239Pu(polarized n, F), E=th; measured light, heavy fragment asymmetry along spin of captured neutron.


1978VO08      Pisma Zh.Eksp.Teor.Fiz. 27, 68 (1978); JETP Lett.(USSR) 27, 62 (1978)

B.D.Vodennikov, G.V.Danilyan, V.P.Droyanov, V.V.Novitskii, V.S.Pavlov, S.P.Borovlev

P-Odd Asymmetry in the Fission of 233U by Polarized Thermal Neutrons

NUCLEAR REACTIONS 233U(polarized n, F), E=thermal; measured asymmetry coefficient of fission fragments.


1977DA21      Pisma Zh.Eksp.Teor.Fiz. 26, 197 (1977); JETP Lett. 26, 186 (1977)

G.V.Danilyan, B.D.Vodennikov, V.P.Dronyaev, V.V.Novitskii, V.S.Pavlov, S.P.Borovlev

P-Odd Asymmtry in the Fission of 239Pu by Polarized Thermal Neutrons

NUCLEAR REACTIONS 239Pu(n, F), E=th; measured polarization asymmetry.


1976DA26      Pisma Zh.Eksp.Teor.Fiz. 24, 380 (1976); JETP Lett.(USSR) 24, 344 (1976)

G.V.Danilyan, V.V.Novitskii, V.S.Pavlov, S.P.Borovlev, B.D.Vodennikov, V.P.Dronyaev

Parity Violation in Gamma Decay of 118Sn

NUCLEAR REACTIONS 115,117Sn(polarized n, γ); measured γ asymmetry. 118Sn deduced parity violation.


1976VO04      Yad.Fiz. 24, 471 (1976); Sov.J.Nucl.Phys. 24, 244 (1976)

B.D.Vodennikov, G.V.Danilyan, V.P.Dronyaev, I.L.Karpikhin

Measurement of Delayed γγ Coincidences in Radiative Capture of Thermal Neutrons by 237Np

NUCLEAR REACTIONS 237Np(n, γ), E=th; measured γγ(t). 238Np shape isomer deduced isomer ratio, T1/2 limit.


1973BU29      Yad.Fiz. 18, 12 (1973); Sov.J.Nucl.Phys. 18, 6 (1974)

M.I.Bulgakov, A.D.Gulko, G.V.Danilyan, I.L.Karpikhin, P.A.Krupchitskii, V.V.Novitskii, Y.A.Oratovskii, V.S.Pavlov, E.I.Tarkovskii, S.S.Trostin

T-Invariance in Nuclear Electromagnetic Transitions

NUCLEAR REACTIONS 35Cl(polarized n, γ), E=slow; measured γγ(θ); deduced non-time reversal invariance.


1972BU39      Phys.Lett. 42B, 351 (1972)

M.I.Bulgakov, G.V.Danilyan, A.D.Gulko, I.L.Karpikhin, P.A.Krupchitsky, V.V.Novitsky, Y.A.Oratovsky, V.S.Pavlov, E.I.Tarkovsky, S.S.Trostin

Time Reversal Invariance in Slow Neutron Capture

NUCLEAR REACTIONS 35Cl(n, γ), E=thermal; measured γγ(θ). 36Cl transition deduced t-invariance.

doi: 10.1016/0370-2693(72)90506-0
Citations: PlumX Metrics


1970BU04      Izv.Akad.Nauk SSSR, Ser.Fiz. 34, 89 (1970); Bull.Acad.Sci.USSR, Phys.Ser. 34, 85 (1971)

N.A.Burgov, G.V.Danilyan, I.Z.Efimov, O.D.Kazachkovskii, V.S.Pavlov

Spectra of γ Rays from Capture of Resonance Neutrons by Rh, Ta and Au Nuclei

NUCLEAR REACTIONS 103Rh, 181Ta, 197Au(n, γ), E=epithermal; measured σ(Eγ). 104Rh, 182Ta, 198Au resonances deduced average γ-width;levels deduced J, π.


1968TR08      Yadern.Fiz. 7, 7 (1968); Soviet J.Nucl.Phys. 7, 4 (1968)

E.F.Tretyakov, G.V.Danilyan, V.S.Pavlov, G.I.Grishuk, V.F.Konyaev

Multipolarity of the 341-keV Transition Following Thermal Neutron Capture by Ti48

NUCLEAR REACTIONS 48Ti(n, γ), E=thermal; measured Eγ, Iγ, ICC. 49Ti deduced γ-mixing.


1963BU18      Izv.Akad.Nauk SSSR, Ser.Fiz. 27, 866 (1963); Bull.Acad.Sci.USSR, Phys.Ser. 27, 856 (1964)

N.A.Burgov, G.V.Danilyan, B.S.Dolbilkin, L.E.Lazareva, F.A.Nikolaev

Levels in C12 and O16 Observed in the Gamma Absorption Cross Section in the Region of the Giant Resonance

NUCLEAR REACTIONS 12C, 16O(γ, X), E<28 MeV; measured reaction products, Eγ, Iγ. 12C, 16O; deduced σ, yields, energy levels, J, π. Comparison with available data, theoretical calculations.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0127.


1963PA23      Izv.Akad.Nauk SSSR, Ser.Fiz. 27, 895 (1963); Bull.Acad.Sci.USSR, Phys.Ser. 27, 884 (1964)

V.S.Pavlov, G.V.Danilyan, I.Y.Korolkov

Decay Scheme for In116

NUCLEAR STRUCTURE 116In; measured not abstracted; deduced nuclear properties.


1962BU23      Zhur.Eksptl.i Teoret.Fiz. 43, 70 (1962); Soviet Phys.JETP 16, 50 (1963)

N.A.Burgov, G.V.Danilyan, B.S.Dolbilkin, L.E.Lazareva, F.A.Nikolaev

Cross Section for Gamma-Ray Absorption by O16 in the Giant-Resonance Region

NUCLEAR REACTIONS 16O(γ, X), E=18.9-26.6 MeV; measured reaction products, Eγ, Iγ. 16O; deduced σ, energy levels, J, π. Comparison with available data.


1962DA14      Izvest.Akad.Nauk SSSR, Ser.Fiz. 26, 1164 (1962); Columbia Tech.Transl. 26, 1175 (1963)

G.V.Danilyan, I.Y.Korolkov

Spectrum of Internal Conversion Paris Produced in Thermal Neutron Capture in Gd

NUCLEAR STRUCTURE Gd; measured not abstracted; deduced nuclear properties.


1956BU51      Izvest.Akad.Nauk SSSR, Ser.Fiz. 20, 941 (1956); Columbia Tech.Transl. 20, 852 (1957)

N.A.Burgov, G.V.Danilian

Investigation of the Neutron Capture γ-Ray Spectra of Na23 and Th232


Back to query form


Note: The following list of authors and aliases matches the search parameter G.V.Danilyan: G.V.DANILIAN, G.V.DANILYAN