The recently developed planar architecture (ITO/ZnO/PbS-TBAI/PbS-EDT/Au) has greatly improved the power conversion efficiency of colloidal quantum dot photovoltaics (QDPVs). However, the performance is still far below the theoretical expectations and trap states in the PbS-TBAI film are believed to be the major origin, characterization and understanding of the traps are highly demanded to devel...

We present new kind of microwave phase shifters (MPS) based on dispersion of PbS colloidal quantum dots (QDs) in commercially available photoresist SU8 after a ligand exchange process. Ridge PbS-SU8 waveguides are implemented by integration of the nanocomposite in a silicon platform. When these waveguides are pumped at wavelengths below the band-gap of the PbS QDs, a phase shift in an optically...

To evaluate the respective contributions of biliary and pancreatic secretions in the formation of intraduodenal pH, 10 pigs were chronically fistulated in either the common bile duct (5 pigs) or the pancreatic duct (5 pigs). They were all fitted with a permanent catheter into the duodenum for the continuous return of secretion and with a duodenal T-cannula allowing the introduction of a combine...

Experiments were performed to determine the cause of "acid crash", a phenomenon which occasionally occurs in pH-uncontrolled batch fermentations resulting in premature cessation of ABE (acetone butanol) production. The results indicate that "acid crash" occurs when the concentration of undissociated acids in the broth exceeds 57 - 60 mmol/l. Prevention can be achieved by introducing some limite...

Background – We have previously demonstrated opposite e¡ ects of exercise training in stable and progressive pulmonary hypertension (PH). Here we investigated cellular changes which may underlie the opposite e¡ ects of exercise training by focusing on right ventricular myolament protein phosphorylation and function. Methods and results – Histological analyses revealed exercise training in progr...