查询词典 spectrum
- 与 spectrum 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
While the adsorptions of 1-propanol and 1-Br-propane at 100℃ give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 ℃ shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150℃, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO〓 catalyst.
2原位IR光谱实验结果表明:200℃时丙烷/O〓混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似,均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰;溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基,异丙氧基主要转化为丙烯和丙酮,丙烯进一步转化为丙烯醛;溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基,正丙氧基主要转化为丙醛;丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基,升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。
-
While the adsorptions of l-propanol and 1-Br-propane at 100 癈 give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 癈 shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150 癈, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO2 catalyst.
原位IR光谱实验结果表明:200℃时丙烷/O_2混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似,均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰;溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基,异丙氧基主要转化为丙烯和丙酮,丙烯进一步转化为丙烯醛;溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基,正丙氧基主要转化为丙醛;丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基,升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。
-
A mathematical relation model between liquor near infrared spectrum and liquor alcoholicity was established by use of the combination of discrete cosine transformation and BP neural networks, which was a new approach for rapid liquor alcoholicity determination.
采用近红外光谱的离散余弦变换和BP神经网络相结合,建立了白酒近红外光谱与其酒精度之间的数学关系模型,为快速检测白酒的酒精度提供了一种新的方法。
-
Pentanediol dithiophene ester was synthesized by means of alcoholysis reaction using 2,4-Pentanediol and Aroly chloride as raw materials, and 1H NMR spectrum was characterized and it can not be explained.
以2,4-戊二醇和芳酰氯为原料,通过醇解反应合成了一种新的内给电子体化合物二(2-噻吩甲酸)-2,4-戊二醇酯,表征其1H-NMR谱,发现化学位移在2附近出现了三组亚甲基峰,无法解释。
-
Research on recognition method of living alga based on stimulating fluorescence spectrum .
基于荧光发射光谱的活体海藻识别方法研究。
-
It obtains that the transport operator A has no complex eigenvalue s, and the spectrum of the transport operator A consists of finite real isolated eigenvalues which have a finite algebraic multiplicity in trip Pas.
本文研究了板几何中一类具各向异性、单能、均匀介质迁移算子A的谱,得出了该算子A在带域Pas中无复本征值和由有限个具有限代数重数的实离散本征值组成等结果。
-
It obtains that the transport operator A has no complex eigenvalue s,and the spectrum of the transport operator A consists of finite real isolated eigenvalues which have a finite algebraic multiplicity in trip Pas.
本文研究了板几何中一类具各向异性、连续能量、均匀介质的迁移算子的谱,得出了该算子A在带域Pas中无复本征值和由有限个具有限代数重数的实离散本征值组成等结果。
-
It proves the singular transport operator generates a strongly continuous C_0 semigroup V(t0)and the weak compactness properties of the second-order remained term of the Dyson-Phillips expansion for the C_0 semigroup V(t0)in L1 space,and to obtain the spectrum of the singular transport operator only consist of,at most,finitely many isolate eigenvalues which have a finite algebraic multiplicity in trip Γ.
证明了这类方程相应的奇异迁移算子产生C0半群和该半群的Dyson-Phillips展开式的二阶余项是弱紧的,从而得到了该迁移算子的谱在区域Γ中仅由至多有限个具有限代数重数的离散本征值组成等结果。上饶师院数学与计算机系江西上饶334001;南昌大学数学系江西南昌330047袁邓彬
-
Keywords: alkaline-earth metal atoms;strontium;laser cooling;accuracy spectrum
中文关键词:碱土金属原子;锶;激光冷却;精密光谱
-
We mainly made following study last one year 1We went in for studies a series of power photoluminescence material with high effect such as Zn4B6O13:RE;LaMgB5O10:RE and so on.(M is the alkaline-earth metal); which involved its syntheses, structure and spectrum property.
一年内主要做了以下方面工作 1)研究了BO3:RE;Zn4B6O13:RE;LaMgB5O10:RE等系列高光效粉体发光材料的合成、结构、光谱性能。
- 相关中文对照歌词
- Spectrum
- Spectrum
- The Everchanging Spectrum Of A Lie
- The Spectrum
- Spectrum
- Spectrum Of Eternity
- Beyond The Visible Spectrum
- Spectrum
- Inner Light Spectrum
- 推荐网络例句
-
Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
-
The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
-
However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。