免費英文學習軟體學英文單字 x-tal detector中文意思是什麼＠席宜欣的部落格

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免費英文學習軟體學英文單字 x-tal detector中文意思是什麼

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x-tal detector中文意思是什麼

x-tal detector解釋

晶體檢波器

x: X2＝（羅馬數字）10 XX ＝ 20 IX ＝ 9 XV ＝ 15 XL ＝ 40 LX ＝ 60 XC ＝ 90 DXL ＝ 540 MX ＝ 1010 ＝...
detector: n. 1. 發覺者。2. 偵查器。3. 【化學】檢定器。4. 【電學】檢電器。5. 【電訊】檢波器，指示器。

The types of the detection equipments and apparatus are over 100, such as x - ray detector, r - ray detector, digital ultrasonic flaw detector, eddy current flaw detector, eddy current flaw detector, magnetic memory metal diagnostic instrument, acoustic emission testing an analyzing system, three - dimensional ultrasonic testing system, microcomuterhydraulic pressureniversal testing machine, metalloscope, portable direct - read spectrograph, have achieved the national advanced technology

擁有各種檢測設備100多套，如射線探傷機、數字式超聲波探傷儀、渦流探傷儀、磁記憶金屬診斷儀、聲發射檢測及分析系統、三維超聲波檢測系統、便攜式直讀光譜儀、微機式液壓萬能試驗機、金相顯微鏡等，達到國內先進水平。

Through the aperture the x - ray will shoot on the detector and goes on record. high resolving power. twin channels are utilized for simultaneous time - integrated photographic recording and for time - resolved x - ray streak camera recording

后焦線處置一狹縫，通過狹縫的射線投射到探測面上被記錄下來；解析度高；雙通道同時完成x射線衍射的時間分辨和空間分辨；操作靈活，方便裝卸。

In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector 一對一英文家教線上日語學習免費教英文

在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件：（ ? ）小的3db帶寬b ，即最小的主瓣寬度；（ ? ）最小的旁瓣最大峰值a ；（ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。

It is based on the principle : under a number of angles, the x - ray attenuation in a cross section of a human body is measured by detector resulting in a set of profiles. this set of profiles is called the radon transform of the object in mathematics. the problem now is to reconstruct a two - dimensional image via inverting its radon transform

它所基於的成像原理是：人體的某個剖面在若干個角度上被x射線束照射，照射后x射線的衰減量被檢測器記錄下來，形成投影集合，數學上將這個投影集合描述為該剖面的radon變換，通過反演radon變換就能夠重建剖面的二維圖像。

There is presently a widespread need for room temperature gamma and x - ray imaging capability for both medical and industrial applications. the interest toward the use of cdznte detector was greatly increased in the recent years because they offer a good trade - off between key perfonnance, such as the energy resolution and the absorption efficiency. and the complexity of the experimental equipment

半導體探測器是新竹外籍英文家教全民英檢聽力練習英聽網站上世紀六十年代以來得到迅速發展的一種新型核幅射探測器，其能量解析度高、線性響應好、脈沖上升時間短、結構簡單、探測效率高、操作方便，在核物理實驗和研究方面得到廣泛的應用。

x-sword lt, x-synchronisation, x-tal, x-time x, x-trail, x-transtode

x-tal detector中文意思是什麼

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免費英文學習軟體 學英文單字 x-tal detector中文意思是什麼

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免費英文學習軟體學英文單字 x-tal detector中文意思是什麼