در این پژوهش، برای نخستین بار کشور، جداسازی لیزری ایزوتوپ C13 از راه گسست چندفوتونی ایزوتوپ- گزین مولکول‌های گاز HCl2CF مقیاس آزمایشگاهی به انجام رسید. کار، تپ‌های یک لیزر 2TEA CO کوک‌پذیر که با برش­گر پلاسمایی کوتاه‌سازی شده‌اند، شاریدگی 2J/cm 50 درون اتاقک تابش‌دهی کانونی شدند. تابش‌‌دهی نیز فشار mbar 10-20 نسبت‌های HCl: He2CF برابر 1:5 و 1:10 پر شده بود. نشان داده شد فراوانی فرآورده‌ی 4F2C ک...

Old carpets may be reservoirs of dust, lead (Pb), and dust mite allergen. The purpose of this study was to determine if the dust, Pb, dust mite allergen, bacteria, and fungi on the surface of carpets could be reduced by 90% in 1 week with the use of a Hoover Self Propelled Vacuum with Embedded Dirt Finder (HSPF). A high-volume surface sampler (HVS3) was used to measure surface dust and pollutan...

Leaf area index (LAI) is a key parameter used to describe vegetation structures and is widely used in ecosystem biophysical process and vegetation productivity models. Many algorithms have been developed for the estimation of LAI based on remote sensing images. Our goal was to produce accurate and timely predictions of grassland LAI for the meadow steppes of northern China. Here, we compare the...

Changes in influenza viruses require regular reformulation of strain-specific influenza vaccines. Vaccines based on conserved antigens provide broader protection. Influenza matrix protein 2 (M2) is highly conserved across influenza A subtypes. To evaluate its efficacy as a vaccine candidate, we vaccinated mice with M2 peptide of a widely shared consensus sequence. This vaccination induced antib...

(4) Let K be a field and M1, M2, M3 be matrices over K. Suppose lenM1 = lenM2 and lenM2 = lenM3 and widthM1 = widthM2 and widthM2 = widthM3 and lenM1 > 0 and M1 + M3 = M2 +M3. Then M1 = M2. (5) For every field K and for all matrices M1, M2 over K such that lenM2 > 0 holds M1 − −M2 = M1 +M2. (6) For every field K and for all matrices M1, M2 over K such that lenM1 = lenM2 and widthM1 = widthM2 an...

We consider the low-energy limit of the two-dimensional theory on k M2-branes suspended between a straight M5-brane and a curved M5-brane. We argue that it is described by an N=(2, 2) supersymmetric gauge theory with no matter fields but with a non-trivial twisted superpotential, and also by an N=(2, 2) supersymmetric Landau-Ginzburg model, such that the (twisted) superpotentials are determined...