The calibration of different types of ionization chambers in radiotherapy level is done using different beam qualities i.e. {gamma}-rays from 137Cs and 60Co. The most common reference beam quality (Qo) used for the calibration of ionization chambers in therapy level is 60Co {gamma}-rays to...
Several different types of smoke and fire detectors can be used. What type of detector is shown in the following graphic? A. Photoelectric B. Heat-activated C. Infrared flame D. Ionization 相关知识点: 试题来源: 解析 A 正确答案:A 解析:A正确。光电设备(photoelectric device)也叫光学探测器(...
In process control, there are two types of sensors as mentioned below:Active and Passive SensorsPassive sensor requires an external source of power to work. For e.g. a thermistor, Light resistor, strain gauge, etc. While an active sensor doesn’t require any external source of power. For e...
Reaction products, mainly highly oxidized RO2 radicals containing up to 14 oxygen atoms, were detected using chemical ionization – atmospheric pressure interface – time-of-flight mass spectrometry with nitrate and acetate ionization. These highly oxidized RO2 radicals react with NO, NO2, HO2 and ...
Matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI IMS) is a powerful tool for the visualization of proteins in tissues and has d... Stefan,K.,Maier,... - 《Molecular & Cellular Proteomics》 被引量: 66发表: 2013年 ...
The covalent attachment of ubiquitin (Ub) or Ub chains to cellular proteins is a versatile post-translational modification involved in a variety of eukaryotic cellular events. Recently, the post-translational modification of Ub itself by phosphorylation
cresol. The resulted crude peptide was purified by reverse-phase HPLC using a Phenomenex Luna C18 (250 × 21.2 mm, 100 Å, 10 μm) column. The appropriate fractions were pooled and lyophilized (purity > 98%) and analyzed using liquid chromatography-electrospray ionization-mass ...
In this study, we have explored the conformational landscape of the indole···furan dimer in a supersonic jet by using resonant two-photon ionization (R2... Kumar, Sumit,Pande, Vedant,Das, Aloke - 《Journal of Physical Chemistry:a》 被引量: 29发表: 2012年 Cold distillation method A me...
In the structure of the root cell walls, four types of ionogenic groups were found: amine, two types of carboxyl (the first being galacturonic acid residue), and phenolic groups. The content of each type of group and their ionization constants were evaluated. The ion...
Standard emissions were measured with different types of analyzers. CO2 and CO were measured with a Fuji Electric ZPA gas analyzer based on a non-dispersion infrared method (NDIR). Total hydrocarbon (THC) emissions were measured with a J.U.M. VE7 flame ionization detector (FID). NOX emissio...