scholarly journals Active shape correction of a thin glass/plastic x-ray mirror

2014 ◽  
Author(s):  
D. Spiga ◽  
M. Barbera ◽  
S. Basso ◽  
M. Civitani ◽  
A. Collura ◽  
...  
Keyword(s):  
Glass Plastic ◽  
Thin Glass ◽  
X Ray ◽  
Active Shape ◽  
Shape Correction

A high resolution large x-ray mission based on thin glass: optomechanical design

2014 ◽  
Author(s):  
Stefano Basso ◽  
Enrico Buratti ◽  
Marta Civitani ◽  
Giovanni Pareschi ◽  
Bianca Salmaso ◽  
...  
Keyword(s):  
High Resolution ◽  
Thin Glass ◽  
X Ray

Research on bonding strength of ultra-thin glass in assembly of X-ray telescope

2019 ◽  
Vol 48 (2) ◽  
pp. 218001
Author(s):  
沈正祥 Shen Zhengxiang ◽  
张 璟 Zhang Jing ◽  
余 俊 Yu Jun ◽  
王晓强 Wang Xiaoqiang ◽  
卫俊杰 Wei Junjie ◽  
...  
Keyword(s):  
Bonding Strength ◽  
Thin Glass ◽  
X Ray

Thermal shaping of thin glass panels for hard X-ray telescope optics

2019 ◽  
Vol 40 (3) ◽  
Author(s):  
Vinita Navalkar ◽  
Kulinder PAL Singh ◽  
Mehernosh Press
Keyword(s):  
Thin Glass ◽  
X Ray ◽  
Glass Panels ◽  
Telescope Optics

scholarly journals STUDIES ON X-RAY EFFECTS

1922 ◽  
Vol 35 (4) ◽  
pp. 475-485 ◽  
Author(s):  
Waro Nakahara ◽  
James B. Murphy
Keyword(s):  
Small Dose ◽  
Biological Effect ◽  
Lymphoid Organs ◽  
X Rays ◽  
Thin Glass ◽  
X Ray ◽  
Spark Gap ◽  
Mitotic Figures ◽  
High Degree ◽  
Ray Effects

A study has been made of the biological effect of a small dose of soft x-rays given off by a special water-cooled tube with a window of thin glass, operated at ½ inch spark-gap and 11 milliamperes. Mice exposed for 1 minute show 2 days later in the blood an increase in the number of lymphocytes and in the lymphoid organs an increased number of mitotic figures. There occurs also a marked dilatation of the vessels of the suprarenals, particularly between the cortex and medulla. The latter condition did not appear until after 24 hours and was still present 14 days after the treatment. No change was detected in other organs. Mice treated in this way showed a high degree of resistance to cancer transplants. The amount of resistance varied with the time of the inoculation after the treatment. The resistance was not increased before 3 days after and was at its highest point 10 days after the treatment.

Design of a medium size x-ray mirror module based on thin glass foils

2016 ◽  
Author(s):  
Stefano Basso ◽  
Marta Civitani ◽  
Giovanni Pareschi
Keyword(s):  
Medium Size ◽  
Thin Glass ◽  
X Ray

scholarly journals KLASIFIKASI OSTEOARTHRITIS BERBASIS DUAL TREE COMPLEX WAVELET TRANSFORM DAN CONTRAST LIMITED ADAPTIVE HISTOGRAM EQUALIZATION (CLAHE) MENGGUNAKAN ACTIVE SHAPE MODELS

2020 ◽  
Vol 3 (1) ◽  
pp. 15
Author(s):  
Mohammad Meizaki Fatihin ◽  
Farid Baskoro ◽  
Arif Widodo
Keyword(s):  
Histogram Equalization ◽  
Complex Wavelet Transform ◽  
Shape Model ◽  
X Ray ◽  
Active Shape Models ◽  
Adaptive Histogram Equalization ◽  
Shape Models ◽  
Active Shape ◽  
Osteoarthritis Initiative ◽  
Grade 3

Citra adalah representasi dari informasi yang terkandung di dalamnya sehingga mata manusia dapat menganalisis dan menafsirkan informasi sesuai dengan tujuan yang diharapkan. Salah satu bentuk citra medis adalah citra x-ray. Penelitian ini mengidentifikasi gambar x-ray Osteoarthritis Lutut yang diambil pada berbagai tingkat keparahan, mulai dari KL-Grade 0 hingga KL-Grade 4. Penelitian ini menggunakan metode CLAHE dan DTCWT untuk proses preprosessing dan menggunakan metode Active Shape Model (ASM) untuk proses segmentasi, menggunakan 35 data pelatihan dan 200 data uji dari Osteoarthritis Initiative (OAI). Pengujian citra uji dalam penelitian ini dengan mengekstraksi tekstur citra menggunakan metode GLCM dan segmentasi citra menggunakan ASM, sehingga proses scanning untuk penentuan titik-titik yang berfungsi untuk mengukur ketebalan cartilage. Hasil Ekstraksi tekstur memiliki tingkat akurasi klasifikasi KL-Grade 0 57,5%, KL-Grade 1 memiliki akurasi 33.3%, KL-Grade 2 37,5%, KL-Grade 3 37,5% dan KL-Grade 4 34,3 %. Sedangkan untuk pengukuran ketebalan tulang rawan memiliki akurasi klasifikasi untuk KL-Grade 0 sebesar 62.5%, kemudian KL-Grade 1 sebesar 44.4 %, sedangkan untuk KL-Grade 2 memiliki keberhasilan klasifikasi 60%, kemudian KL-Grade 3 memiliki klasifikasi berhasil dengan benar 70%, dan untuk KL-Grade 4 51.4%.

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