Now showing items 1-20 of 85

    • Thumbnail

      A study of solar ultraviolet radiation under clear sky condition measured at stations situated in main regions of Thailand 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ปรารถนา ไหลวารินทร์ (Silpakorn University, 12/6/2020)
      In this study, global and diffuse solar erythemal ultraviolet radiation under clear sky condition measured at stations localed in main regions of Thailand was analysed. These stations are Chiang Mai (18.78 °N, 98.98 °E) ...
    • Thumbnail

      A development of a model for calculating global solar illuminance using Himawari satellite data 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ธฤษวรรณ บรรดาจันทร์ (Silpakorn University, 12/6/2020)
      In this research work, a model for calculating monthly average hourly global illuminance from Himawari satellite data was developed. A 3-year period (2016-2018) of data form the visible channel (0.51 m) of Himawari satellite ...
    • Thumbnail

      A study of solar radiation spectrum from data collected at Nakhon Pathom station 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      สุนิษา แขกฮู้ (Silpakorn University, 12/6/2020)
      In this work, the performance of three direct solar spectral models under clear sky condition and three diffuse solar spectral model under clear sky condition were investigated. The spectral values calculated from the model ...
    • Thumbnail

      Micromagnetic Simulations of Exchange Coupled Composite Media 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      อัญชลี ชื่นชม (Silpakorn University, 12/7/2019)
       In this thesis, micromagnetic simulations of exchange coupled composite (ECC) media were employed aiming to study the motion of magnetic moments inside the ECC media and the M-H hysteresis loops. The simulations were ...
    • Thumbnail

      Apparatus for measuring frequency and magnetic response of magnetic force microscopy probes 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ณัฐวัฒน์ พันธุ์ชาติ (Silpakorn University, 12/7/2019)
      Characterization and inspection of magnetic force microscopy (MFM) probes are generally done in a conventional atomic force microscope (AFM) with a patterned magnetic recording media as a test sample. During the characterization, ...
    • Thumbnail

      A Study of Spectral Solar Radiation Models under cloudless skies 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      พิมพ์ปพัฒน์ กฤติธนาเดช (Silpakorn University, 12/7/2019)
      Comparisons of the models for estimating direct-beam and diffuse horizontal solar spectral irradiances under cloudless sky conditions were examined with the direct-beam and diffuse horizontal solar spectral irradiances ...
    • Thumbnail

      Physical and magnetic characterization of magnetic force microscopy tips 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      อดิวรรณ สังข์ทอง (Silpakorn University, 12/7/2019)
      A conventional magnetic force microscopy (MFM) technique is usually employed to image magnetic domains and patterns of ferromagnetic materials. This requires MFM probes that have an ultrahigh resolution for imaging small ...
    • Thumbnail

      A Preliminary Study of Atmospheric Water Vapour in Thailand 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      จินดารัตน์ ปริโยธร (Silpakorn University, 12/7/2019)
      In this work, a preliminary study of atmospheric water vapour in Thailand was carried out. The work consists of two parts. The first part was the development of  a model for estimating precipitable water and the second ...
    • Thumbnail

      A study of remnant field of magnetic write heads using magnetic force microscopy 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ภูมินทร์ ดิเรกโรจน์วุฒิ (Silpakorn University, 12/7/2019)
      One of main problems in manufacturing a perpendicular magnetic recording head is the write head remanence, which is the remaining out-of-plane magnetic field on the magnetic write head. The remnant field can write unwanted ...
    • Thumbnail

      Mapping solar radiation from ground and satellite-based data using a semi-empirical model 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      เยาวนันท์ ปานใจนาม (Silpakorn University, 12/7/2019)
      In this work, solar radiation maps were generated. A semi-empirical model for estimating monthly averaged global irradiation was developed. This model expresses the global irradiation as an empirical function of the ...
    • Thumbnail

      Development of typical meteorological dataset for daylight applications 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ปทุมพร โง้วเจริญ (Silpakorn University, 12/7/2019)
      In this work, typical meteorological data (TMD) sets for daylight applications for Chiang Mai, Ubon Ratchathani, Nakhon Pathom and Songkhla were developed. In developing the TMD 10-year (2008 - 2017), data on solar radiation, ...
    • Thumbnail

      A study of optical properties of aerosols at Lopburi province by using a spectroradiometer modified for measuring spectral direct radiation 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ลัดดาวรรณ บัวขาว (Silpakorn University, 12/7/2019)
      In this work, a spectroradiometer for measuring spectral global solar radiation was modified by covering its glass dome with a collimator to allow direct radiation to be incident on the sensor of this instrument. Then this ...
    • Thumbnail

      A Study of Diffuse Solar Ultraviolet Radiation from The Measurements at 4 Stations in the Main Regions of Thailand 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      เทพปัญญา แย้มเสียง (Silpakorn University, 12/7/2019)
      In this research, diffuse solar ultraviolet radiation (EUV) from four measuring stations in the main regions of Thailand, namely Chiang Mai (CM, 18.78°N, 98.98°E), Ubon Ratchathani (UB, 15.25°N, 104.87°E), Nakhon Pathom ...
    • Thumbnail

      Preliminary development of low-cost instrument for measuring solar ultraviolet radiation. 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ศศิมาภรณ์ โมกขาว (Silpakorn University, 12/7/2019)
      In this work, a low-cost and modirately, accurate portable device for measuring solar ultraviolet radiation (UV) was developed at Silpakorn University in Nakhon Pathom (13.82ºN, 100.04ºE). The aim of the development of ...
    • Thumbnail

      Development of a small-scale solar dryer for household use: Preliminary investigation of the performance and modelling 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ทศพร ขุนแก้ว (Silpakorn University, 12/7/2019)
      In this research, a small-scale solar dryer for household use was developed.  The dryer consists of a semi-circle roof structure cover with polycarbonate solid sheet on a black-painted metal floor. The dimension of the ...
    • Thumbnail

      Development of statistical models for converting values of solar diffuse radiation from sky on horizontal plane to those of diffuse radiation on inclined planes using solar radiation data from 4 stations in Thailand 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      กัญญ์วรา มีอินถา (Silpakorn University, 12/7/2019)
      In this work, models for converting values of diffuse solar radiation on horizontal plane into those on tilted planes with various tilted angles and sky conditions. Values of diffuse solar radiation on tilted plans were ...
    • Thumbnail

      characterization of magnetic write heads using a high-frequency magnetic force microscope 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      คนิต ตำนานทอง (Silpakorn University, 12/7/2019)
      High-frequency magnetic force microscope (HF-MFM) was used to characterize perpendicular magnetic write heads in this thesis. The operation of the HF-MFM was similar to that of a conventional MFM technique, excepting that ...
    • Thumbnail

      Micromagnetic study of pole tip remanance in perpendicular magnetic recording heads 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ช่อแก้ว เจริญชาติ (Silpakorn University, 12/7/2019)
       In this thesis, the pole-tip remanence in magnetic write heads, which is one of significant problems in perpendicular magnetic recording, was studied using the open source micromagnetic simulation, object oriented ...
    • Thumbnail

      Finite element simulations of a magnetic write head with different magnetic shield designs 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ฤทธิรงค์ บานเย็น (Silpakorn University, 12/7/2019)
      Perpendicular magnetic write heads used in hard disk drive applications was generally composed of a main write pole surrounded by magnetic shields in order to reduce the fringing field expansion and thus improve area storage ...
    • Thumbnail

      Analysis of Wide Area Adjacent Track Erasure in Magnetic Write Heads using Magnetic Force Microscopy 

      Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์
      Type: Thesis
      ปรมาพร รักษาศักดิ์ชัย (Silpakorn University, 12/7/2019)
      Wide area adjacent track erasure (WATEr) is one of significant problems limiting the performance of magnetic write heads. This problem leads to the stored data near and also far from a written track being erased. Typically, ...


      Copyright  ©  2022 Silpakorn University Central Library All Rights Reserved.
      Theme by 
      Atmire NV