However, in some cases, enantiomer separation by GC with MS detection is unable to establish the authenticity of a sample, for example, samples of natural origin, as occurs when a chiral compound is present in racemic form, or with matrices deriving from processing and/or storage, or else wh...
New speed correction factor (SCF) and operational correction factor (OCF) models of gram per mile diesel particulate emissions from on-road heavy duty vehi... TP Kear - University of California, Davis. 被引量: 0发表: 2005年 Effect of dilution conditions and driving parameters on nucleation mod...
cubic foot of atmosphere; standard cubic foot cuftatm;scf = 1 atm × 1 ft3 2.8692044809344e3 cubic foot of natural gas = 1 000 BTUIT 1.05505585262e6 cubic yard of atmosphere; standard cubic yard cuydatm;scy = 1 atm × 1 yd3 77.4685209852288e3 electronvolt eV = e × 1 V 1.60217733e-...
In microgravity, flow behavior changes drastically, and the impact on cells within the porous system of bone and the influence of an expanding level of adiposity are not well understood. This review explores the role of interstitial fluid motion and solute transport in porous bone under two ...
SC-CO2 extraction was performed using the SFE-500 supercritical pressure extraction system (Thar SCF Waters, Milford, CT, USA). The system options include the following: a co-solvent pump (Thar Waters P-50 High Pressure Pump) for the extraction of polar samples; a CO2-flow meter (Siemens,...
Because of the insufficient yield (atoms per μμC incident proton beam), slow isotope release from the target unit, melting point of the material, powder sintering, or element selectivity, these materials were discarded from routine use. On the other hand, such a controlled and sustained releas...
Thus, isotopically pure 44𝑔/𝑚 44g/mSc, 46Sc, and 47Sc were obtained as mono-atomic and molecular ScF +2 2+ ion beams and collected for the first time at CERN-MEDICIS. Among all the investigated target materials, 𝑛𝑎𝑡 natTiC is the most suitable target material for Sc mass...
Protonation sites were obtained on the basis of molecular electrostatic potential (MEP) [65], local Fukui indexes [66], Parr functions [58], proton affinity (PA) and gas-phase basicities (GB) among several protonated forms. GB was calculated from the Gibbs free energies of the following ...
materials Article Modified Falling Mass Impact Test Performance on Functionally Graded Two Stage Aggregate Fibrous Concrete Nandhu Prasad 1 , Gunasekaran Murali 1,* and Nikolai Vatin 2 1 School of Civil Engineering, SASTRA Deemed to be University, Thanjavur 613401, India; nandhuprasad@sastra.ac.in...
MS/MS data were acquired in the absence and presence of a collision gas (air or argon). Different end groups had no effects on the fragmentation of Na+ PEAm oligomers, similar to PBA [48]. Two main fragmentation patterns occurred, involving the scission of the -O–CH2- bonds via a β...