ANALISIS KOEFISIEN ABSORPSI BUNYI PADA KOMPOSIT PENGUAT SERAT ALAM DENGAN MENGGUNAKAN ALAT UJI TABUNG IMPEDANSI 2 MICROPHONE

Analisis Koefisien Absorpsi Bunyi Pada Komposit Penguat Serat Alam Dengan Menggunakan Alat Uji Tabung Impedansi 2 Microphone

Abstrak: Dalam perambatannya gelombang bunyi dapat di halangi dengan menggunakan suatu medium yang memiliki sifat-sifatkedap suara, sehingga energi yang ditransmisikan akan mampu dikurangi/dihambat oleh medium tersebut.Salah satumetode yang dapat dipergunakan untuk mengetahui kemampuan peredaman (koefisien absorpsi) suatu mediumterhadap gelombang b

read more

Subjecting Dams to Early Life Stress and Perinatal Fluoxetine Treatment Differentially Alters Social Behavior in Young and Adult Rat Offspring

Recently, the putative association between selective serotonin reuptake inhibitor (SSRI) exposure Framed Art during pregnancy and the development of social disorders in children has gained increased attention.However, clinical studies struggle with the confounding effects of maternal depression typically co-occurring with antidepressant treatment.F

read more


Review of tribe Syrphini (Dip.: Syrphidae) in Iran

The specimens of the tribe Syrphini, deposited at the Hayk Mirzayans Insect Museum, were examined and 30 species identified, of which one genus and three species are newly recorded from Iran and marked Toy by an asterisk (*).Keys to the genera and species, as well as their distribution in Iran, are provided.The species are as follows:Dasysyrphus al

read more