Search for dissertations about: "C. Zhang"

Showing result 1 - 5 of 61 swedish dissertations containing the words C. Zhang.

  2. 1. Accuracy of mRNA Translation in Bacterial Protein Synthesis

    Author : Jingji Zhang; Måns Ehrenberg; Olke C. Uhlenbeck; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; protein synthesis; genetic code; misreading; error hot spots; kinetics; aminoglycoside; Biokemi; Biochemistry;

    Abstract : Reading of messenger RNA (mRNA) by aminoacyl-tRNAs (aa-tRNAs) on the ribosomes in the bacterial cell occurs with high accuracy. It follows from the physical chemistry of enzymatic reactions that there must be a trade-off between rate and accuracy of initial tRNA selection in protein synthesis: when the current accuracy, the A-value, approaches its maximal possible value, the d-value, the kinetic efficiency of the reaction approaches zero. READ MORE

  4. 2. High-entropy boron-carbide and its composites

    Author : Hanzhu Zhang; Farid Akhtar; Peizhong Feng; Yong Zhang; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Materials; Materialteknik;

    Abstract : High-entropy alloy (HEA) is a multicomponent alloy material that contains five or more principal elements in equi- or near equi-atomic ratios. The entropy stabilisation leads to the formation of a crystalline solid solution accommodating the principal elements. READ MORE

  5. 3. The Mussel Adhesive Protein (Mefp-1) : A GREEN Corrosion Inhibitor

    Author : Fan Zhang; Jinshan Pan; Douglas C. Hansen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; carbon steel; mussel adhesive protein; Mefp-1; inhibitor; adsorption; film forming; complexation; cross-linking; ceria nanoparticle; composite film; EIS; AFM; QCM-D; ATR-FTIR; Confocal Raman Micro-spectroscopy; DFT calculation;

    Abstract : Corrosion of metallic materials is a natural process, and our study shows that even in an alkaline environment severe corrosion may occur on a carbon steel surface. While corrosion cannot be stopped it can be retarded. READ MORE

  6. 4. Regulation of Intracellular Calcium in Brown Adipocytes

    Author : Shi-Jin Zhang; Lawrence C.H Wang; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; zoofysiologi; Zoological physiology;

    Abstract : Intracellular Ca2+ is considered a primary regulator of cell function. In the present study, the control and the effects of intracellular Ca2+ in brown adipocytes have been investigated. Cytosolic Ca2+ levels ([Ca2+]i) are the resultant of the activity of Ca2+ transport systems. READ MORE

  7. 5. Contacts and Interconnects for Germanium-based Monolithic 3D Integrated Circuits

    Author : Lukas Jablonka; Zhen Zhang; Shi-Li Zhang; Fabrice Nemouchi; Uppsala universitet; []
    Keywords : Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

    Abstract : Three-dimensional integrated circuits have great potential for further increasing the number of transistors per area by stacking several device tiers on top of each other and without the need to continue the evermore complicated and expensive down-scaling of transistor dimensions. Among the different approaches towards the realization of such circuits, the monolithic approach, i. READ MORE