نتایج جستجو برای: spectra
تعداد نتایج: 108325 فیلتر نتایج به سال:
BACKGROUND The Spectra Optia (SPO) is a novel continuous-flow centrifugal apheresis system based on the COBE Spectra (CSP) platform. There have been few attempts to validate the advantages of the SPO. We performed a retrospective study comparing the two cell separators for therapeutic plasma exchange (TPE) procedures in kidney transplant (KT) patients and seeing efficacy and safety. METHODS W...
Sub-Doppler electronic spectra with hundreds of resolved rotational lines are now available for benzeneAr dimers and trimers. From their analysis the structure of these clusters is precisely determined. The analysis of two bands, 6~ and 16ao, of C6H 6 "Ar is presented in detail. It leads to accurate values of the van der Waals bond length in the electronic ground and excited state. The change i...
One- and two-photon absorption cross-sections and spectra and the photophysical properties of eight perylenetetracarboxy-3,4:9,10-diimide (PDI) derivatives are reported and analyzed. The investigated compounds are characterized by direct binding of the phenyl rings of the substituents to the bay positions of the perylene core. They have been designed to test the effects of differences in the el...
An original experimental technique capable to produce electronic spectra of cold gas phase cations of large aromatic molecules, previously suggested as a family of potential carriers of Diffuse Interstellar Bands (DIBs), has been developed and put to work. This achievement is demonstrated with the spectrum of the D2←D0 electronic transition of the phenanthrene cation, C14H10, in the near infrar...
For the first time Rigorous Coupled Wave Analysis (RCWA) has been applied to the analysis of the transmittance spectra for the determination of critical dimension (CD) of phase-shift photomasks. The use of transmittance spectra proved to be instrumental in improving the sensitivity of the measurement to minor (sub-nanometer) changes in the width of the trench. We present a novel unique metrolog...
Molecular geometry, electronic spectra, infrared and NMR spectra of [Ru(OAc)(2mqn)2NO] (H2mqn = 2methyl-8-quinolinol) isomers were studied with density functional theory (DFT) at B3LYP level with 6311++G(d,p) and Aug-cc-pVDZ-PP as basis set. a r t i c l e i n f o
the present study was conducted to determine peak ground acceleration (pga) over bedrock in probabilistic analysis methods for the seismic hazard and uniform hazard spectra at different hazard levels for esfahan city. a series of statistics containing historical and instrumental seismic data covering from the 8th century a.d. to the now up to a radius of 200 km was employed and seismic sources ...
چکیده ندارد.
چکیده ندارد.
این مطالعه برای بررسی تنوع زیستی و مشخصات اکولوژیکی تپه های گادون در منطقه سوابی پاکستان در طی سالهای 2009 تا 2010 انجام شده است. این منطقه تحت تأثیر فشارهای زیستی بدلیل از بین رفتن جنگلها و چرای بیش از حد می باشد. پوشش گیاهی منطقه دامنه وسیعی از اشکال زیستی از انواع چمن ها تا درخت بلند را در بر می گیرد. 260 گونه گیاهی متعلق به 211 جنس و 90 خانواده شناسایی گردیدند. هفتاد و هفت خانواده از دو لپه...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید