消光度 的英文怎麼說
中文拼音 [xiāoguāngdù]
消光度
英文
absorbancy-
Digesting with microwave, and a faas method for the determination of trace elements ca, mg, mn, zn, fe in two kinds of sweet averrhoa carambola l. was described
摘要採用微波消解,火焰原子吸收分光光度計對兩個甜楊桃品種進行了微量元素的測定。The molecular extinction coefficient is equal to the ratio of the log of the intensity of the incident and emergent light.
分子的消光系數等於入射光和透射光強度對數的比。The main study in this paper included as follows : the content and distribution of heavy metals in sediments and benthic organisms from the sewage stream in guangzhou city ; the acute toxicity and joint toxicity of mercury and selenium to swordtail fish ( xiphophorus helleri ) ; the damage of mercury to the indexes of antioxidant system in the gills and livers in swordtail ( including the measurement of the activities of total antioxidative capacity [ t ~ aoc ], superoxide dismutase [ sod ], glutathione peroxidase [ gsh - px ] and the concentration of malondiald - ehyde [ mda ] ) and the relief effects of selenium on it, as well as the physiological damage of mercury on the tissues, namely : the antagonistic effect of na + - k + ~ atpase activity on the tissues between selenite and mercury, and the ultrastructural damage under the exposure of mercury
研究內容主要有:廣州市河涌沉積物及底棲生物體內重金屬含量及評價;汞和硒對劍尾魚的急性毒性和聯合毒性及安全濃度的評價;汞對劍尾魚鰓和肝臟中抗氧化系統的毒性,包括對總抗氧化能力、超氧化物歧化酶、谷胱甘肽過氧化物酶活力及丙二醛含量的測定及硒對其保護作用;汞對劍尾魚組織生理毒性即:汞對na ~ + - k ~ + atpase活力的影響及硒的保護作用和汞和對劍尾魚組織超微結構的損傷等。以高氯酸?硝酸消化法和火焰原子吸收分光光度法測定了廣州市河涌沉積物和底棲生物中重金屬含量。The thickness had some influence on the development of the banded spherulites : when the thickness reduced to some degree, pcl would develop chrysanthemum - like spherulites, which had no extinction rings or the maltese cross pattern under the crossed polarized optical microscopy. the results of the phase - contrast microscopy showed that growth speed of the chrysanthemum - like spherulites along the radius was not constant
發現薄膜厚度對球晶的生長有一定的影響,當共混物膜薄到一定程度時, pcl不能形成環帶球晶,而是形成一種類似菊花狀的晶體,在偏光顯微鏡下看不到環帶,也沒有典型球晶所特有的maltese十字消光圖案。Based on the analysis of the effect on the maximum range of the equation ' s each parameter and the traditional method of extinction ratio, the noncooperative regulable attenuation - measure the minimum detectable power of laser altimeter on the condition of constant miss probability by attenuating the laser power transmitting to the diffuse reflected simulant target - was put forward
在傳統的消光系數法基礎上,根據對月測距方程各系數的影響權重分析,提出了非合作目標可調衰減法,即:通過對漫反射模擬目標,衰減出射激光功率,在一定的漏警概率條件下測量激光高度計的最小可探測功率。Abstract : the ashing loss of pb in water samples has been studied in digestive method for determination of lead by dithizone spectrophotometry ( gb 5750 - 85 ). after the digestive conditions are improved, the digestive loss of pb in some polluted water samples is prevented. the recovery of pb rised, the accuracy and precision of the analytical date are guaranteed
文摘:對國標5750 - 85雙硫腙分光光度法中消化水樣時鉛的灰化損失進行了探討,針對某些污染嚴重的水樣,改進了消化處理的條件,有效地消除了灰化損失,提高了鉛加標回收率,保證了分析測試數據的精密度和準確度。At last, the radiation transmit process in smokescreen is discussed, and the transmitted radiation energy distribution is obtained from extinction characters of particles. the relationship between transmittance and smokescreen concentration is experimental studied, the experiment results agrees with calculated results. we also discuss the application limit and error of lambert - beer law in smokescreen studies
本文最後討論了輻射在隨機分佈微粒形成煙幕中的傳輸過程,根據煙幕微粒的消光特性計算出輻射通過煙幕後的能量分佈情況,討論了在煙幕研究中應用lambert ? beer定律的誤差問題,並對透過率隨煙幕濃度的變化情況進行了實驗研究,結果表明,理論計算結果能夠與實驗數據較好吻合。The specifications of the intensity modulator at 1. 3 m involved with extinction ratio better than 25 db, and low drive voltage, and wide operation band width and so on
該強度調制器工作於1 . 3 m ,具有大於25db的消光比、低驅動電壓、寬工作帶寬的特點。The specifications of the intensity modulator at 1. 054 m involved with extinction ratio better than 50 db, and low drive voltage, and wide operation band width and so on
該強度調制器工作於1 . 054 m ,具有大於50db的消光比、低驅動電壓、寬工作帶寬的特點。The presence of stray light is indicated by the absence of complete extinction when the phase difference is such that this should be achieved.
若位差達到應當消光的程度,卻未能完全消光即表示有雜散光存在。The sai kung outdoor recreation centre is situated among the beautiful sourroundings of the tui min hoi area in sai kung
西貢戶外康樂中心位於西貢對面海區。這里風光明媚,且遠離煩囂鬧市,是消閑度假、享受郊外恬靜環境的好地方。The flesh of this biota was tested for their cadmium, lead, chromium, nickel, copper, and zinc concentrations ( based on wet weight ) using the method of hnq3 - hc104 digestion and flame atomic absorption spectrophotometry
以高氯酸?硝酸消化法和火焰原子吸收分光光度計測定了廣州石牌市場食用魚類和雙殼貝類的cd 、 pb 、 cr 、 ni 、 cu和zn等重金屬的含量。In this paper the water sample was digested in a high pressure disinfector and cod was determined by spectrophotometry. this method has some trait of rapidness, convenience and high accuracy
摘要本文研究了用高壓消毒鍋重鉻酸鉀法消解環境水樣,用分光光度計測定cod ,本法具有快速、簡便、準確度高的特點,有良好的精密度。Study on the relationship between postmortem interval and the change of absor bance in vitreous humor of rabbit after death
家兔死後眼玻璃體液消光度與死亡時間關系研究Determination of trace germanium in yingping wanbitong and yingping wanbixiao by spectrophotometry
分光光度法測定英平頑痹通和英平頑痹消中微量鍺Aiming at the possible problem of dyeing rate in cotton fabrics determined by spectrophotometry, the cause was introduced ; by experiment, the method of centrifugal sedimentation could be used to eliminated errors
摘要針對分光光度法測定棉織物上染率時可能出現的問題,闡述了問題出現的原因,經實驗表明,採用離心沉降的方法可消除誤差。The tests of e - o applications by our flux ktp has been realized, the results showed : optical waveguides fabricated by using an ion - exchange process, which have an exchange - ion concentration depth profile and refractive - index profile, is close to a complementary error - function distribution, optical homogeneity and device thermal stability is much better. amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2. 5 % at 1064 nm. high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width, this modulator had run for three years, and the crystal did n ' t blackened, it showed our low conductivity flux ktp can endure high modulation voltage for a very long time
Ktp晶體的電光應用試驗表明:用離子交換法製作的電光波導,其離子交換濃度、折射率變化符合餘弦誤差函數,光學均勻性以及器件的溫度穩定性較好;製作的強度調制電光開關,消光比為150 : 1 ,對1064nm激光的插入損耗為2 . 5 ;製作的電光調制器用於激光脈沖整形試驗,從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質量光脈沖,該電光開關經過長達三年多的使用,沒有出現晶體變黑現象,說明本實驗的低電導率ktp晶體能夠耐受長時間的調制電壓。A comparison of the optical and mechanical performance is made between with iad and without iad. the optical performances include the refractive index the extinction coefficient the packing density the vaccum - to - air shift and the afm images of the surface ; the mechanical performances include the adhesion and the hardness
光學特性涉及折射率、消光系數、波長漂移、聚集密度和表面粗糙度,機械特性涉及硬度和附著力。通過研究,發現離子輔助沉積對單層薄膜的光學特性和機械特性均有明顯改善。Some conclusions about the length and the splice angle of the depolarizer, the spectrum of the light source and the extinction ratio of the polarizer are obtained. associated with the polarization in the sensing coil and the principle of the pmd analyzer, one method to design the length of the lyot depolarizer has been put forward
首先,本文分析了lyot消偏器對完全偏振光與非完全偏振光的消偏作用,由此得出了關于lyot消偏器的長度和結合角、光源光譜以及與消偏器配合的起偏器消光比的一些結論。Gloss, clarity and heat sealability etc. decro bopp film has been in high - ranked level in domestic market. the products are widely used in food packaging, drink packaging, trademark labeling, general printing, laminating, tape - base gluing and other industrial application
(消光度) 、透明度(不透明度) 、白度、熱封性能等方面各具特色,指標居國內領先水平,廣泛應用於粘膠帶材、食品包裝、高檔飲料包裝、商標印刷、印刷復合、激光防偽及其他工業用途。分享友人