Vol. 9 No. 2 (2021)

Articles

• Squeezing properties of nondegenerate three-level laser with degenerate parametric amplifier

  Misrak Getahun, Edris Salih

  Pages: 73-83

  DOI: https://doi.org/10.14419/ijpr.v9i1.31619

• Generalized models of flow of a fluid with pressure-dependent viscosity through porous channels: channel entry conditions

  M. .S.Abu Zaytoon, M. H.Hamdan, Yiyun (Lisa) Xiao

  Pages: 84-91

  DOI: https://doi.org/10.14419/ijpr.v9i2.31744

• Thermodynamic constant of time passage

  Mieczysław Dobija, Jurij Renkas

  Pages: 92-97

  DOI: https://doi.org/10.14419/ijpr.v9i2.31823

• Periodic wave analysis to the time-fractional phi-four and (2+1) dimensional CBS equations

  Samsun Nahar Ananna, Abdulla Al – Mamun, Tianqing An

  Pages: 98-104

  DOI: https://doi.org/10.14419/ijpr.v9i2.31824