A, Microperforation and B, cross section of micro-perforation as

Download scientific diagram | A, Microperforation and B, cross section of micro-perforation as seen under SEM of BOPLA film with λ MD × λ TD of 4.0 × 4.0 perforated by CO 2 laser at fluence of 35.5 J/cm 2 from publication: Effect of biaxial-simultaneous stretching conditions on OTR and CO 2 permeation of CO 2 laser perforated poly(lactic acid) film | The biaxially oriented poly(lactic acid) films prepared using simultaneous biaxial stretching were perforated by CO2 laser with the power of 60 W. The focal spot diameter was fixed at 103 μm. Pulse durations were varied from 1 to 30 μs, which corresponds to the fluence from | Films, Motion Pictures as Topic and Film | ResearchGate, the professional network for scientists.

a) Schematic illustration of microperforated shells in open office

Buildings, Free Full-Text

PDF] Low-frequency sound absorption of hybrid absorber based on

Takeshi KIKUTANI, Professor (Full), Doctor of Engineering, Tokyo Institute of Technology, Tokyo, TITech, Organic and Polymeric Materials Department

The delamination of metalized multilayer flexible packaging using

Charinee WINOTAPUN, Doctor of Philosophy, National Metal and Materials Technology Center, Bangkok, MTEC, Polymer Research Unit

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Experimental investigation of sound absorption in a composite absorber

Charinee WINOTAPUN, Doctor of Philosophy, National Metal and Materials Technology Center, Bangkok, MTEC, Polymer Research Unit

Acoustic characteristics of microperforated plate with variable cros

Multi-layer micro-perforated partition.

A) Sound absorption coating structure with a micro‐perforated