Sökning: "number fluctuations"

Visar resultat 1 - 5 av 209 avhandlingar innehållade orden number fluctuations.

  1. 1. Intracellular Flows and Fluctuations

    Författare :Johan Elf; Måns Ehrenberg; Peter Wolynes; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; mesoscopic; reaction-diffusion; protein synthesis; amino acid; flow; fluctuations; Molekylärbiologi; Molecular biology; Molekylärbiologi; Molecular Biotechnology; Molekylär bioteknik;

    Sammanfattning : Mathematical models are now gaining in importance for descriptions of biological processes. In this thesis, such models have been used to identify and analyze principles that govern bacterial protein synthesis under amino acid limitation. LÄS MER

  3. 2. A Study of Number-Ratio Fluctuations in Gold-Gold Interactions at sqrt(s_NN)=200 GeV

    Författare :Eva Haslum; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fluctuations; Heavy-Ion Collisions; PHENIX; RHIC;

    Sammanfattning : The properties of the basic building blocks of nuclear matter, the quarks, and their interactions are not known in detail, largely because observations are complicated by the confinement of quarks in composite particles. New insights can be gained from the study of nuclear matter in a deconfined phase, like the form of matter that the Universe consited of early in its evolution according to the Big Bang theory. LÄS MER

  4. 3. Low-frequency noise characterization, evaluation and modeling of advanced Si- and SiGe-based CMOS transistors

    Författare :Martin von Haartman; Mikael Östling; Cor Claeys; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MOSFET; SOI; SiGe; strain; high-k; metal gate; 1 f noise; low-frequency noise; mobility fluctuations; phonons; number fluctuations; traps; buried channel; mobility; substrate bias; Electronics; Elektronik;

    Sammanfattning : A wide variety of novel complementary-metal-oxide-semiconductor (CMOS) devices that are strong contenders for future high-speed and low-noise RF circuits have been evaluated by means of static electrical measurements and low-frequency noise characterizations in this thesis. These novel field-effect transistors (FETs) include (i) compressively strained SiGe channel pMOSFETs, (ii) tensile strained Si nMOSFETs, (iii) MOSFETs with high-k gate dielectrics, (iv) metal gate and (v) silicon-on-insulator (SOI) devices. LÄS MER

  5. 4. Development of an integrated neutronic/thermal-hydraulic tool for estimating fluctuations in PWRs

    Författare :Viktor Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Diffusion theory; Fluctuations; Neutron noise; Coupled calculations; P1 theory Analytical Nodal Method;

    Sammanfattning : Monitoring and diagnostics of a reactor core at a given state is very important for detecting potential problems and anomalies at an early stage. Several methods exist for these purposes, but the majority of them require a disruption of the plant operation, e.g. by shut-down or by perturbation of the system. LÄS MER

  7. 5. Resistive studies of vortices and fluctuations in single crystal YBa2Cu3O7-

    Författare :Therese Björnängen; KTH; []
    Nyckelord :condensed matter physics; high temperature superconductors; YB2Cu3O7-d; untwinned YBCO; oxygen deficiency; superconducting fluctuations; magnetoconductivity; in-plane anisotropy; vortex liquid; vortex solid; vortex correlation;

    Sammanfattning : High-temperature superconductors have been intensely studiedsince the discovery, almost 20 years ago. Their layeredstructure, extreme type-II behavior, large anisotropy, andstrong fluctuations have led to a large number of new andinteresting problems. LÄS MER