Browsing by Subject "Reflectance"

Now showing items 1-5 of 5

    • Analysis on surface roughness and surface reflectance through DOE 

      Zaliman, Sauli, Dr.; Retnasamy, Vithyacharan; Ong, Tee Say (Trans Tech Publications, 2014)
      The Lambda 950 spectrometers are designed to investigate and examine surface coating on test specimen by using the light source. The objective of this research is to investigate the factors that affect the surface roughness ...

    • Characterisation of laser-treated Ag, Al, and Al/Ag metal thin films deposited by DC sputtering 

      Aliyu, Kabiru Isiyaku; Ahmad Hadi, Ali; Nafarizal, Nayan (Universiti Malaysia Perlis, 2020-01)
      Structural, optical and electrical properties of Nd:YAG pulsed laser-treated silver (Ag), Aluminium (Al) and Al/Ag bi-layer metal thin films deposited by Direct Current (DC) sputtering technique is investigated. Laser-metal ...

    • Fabrication and characterization of porous silicon using long time low current electrochemical etching 

      Husnen R., Abd; Ahmed, Naser M.; Yarub, Al - Douri, Assoc. Prof. Dr.; Uda, Hashim, Prof. Dr. (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      In this paper, the fabrication of porous silicon (PS) layers based on crystalline silicon (c-Si) wafers n-type of (100) orientation using electrochemical etching process was prepared. The effect of various etching time on ...

    • Low density fibrous material surface light reflectance analysis 

      Ong, Tee Say; Zaliman, Sauli, Dr.; Retnasamy, Vithyacharan; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (AENSI Publisher All rights reserved, 2013-10)
      The light based surface finishing of most product measurement is an important feature in the industries. In this paper, a lab fabricated tester for investigation on the quality of low density paper which was represent by ...

    • Optical properties of Poly Vinyl Alcohol (PVA)/molasses as biodegradable films for agriculture applications 

      Ammar Al-kawaz; Auda Jabbar Braihi; Akram Jassim Jawad (Universiti Malaysia Perlis (UniMAP), 2021-10)
      Biodegradable polymeric films were prepared for agricultural applications. These films based on PVA/ molasses blend mixed with different concentrations (0, 10, 20, 30 and 40 wt. %). These films were characterized by FTIR ...