Sökning: "kuiper"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet kuiper.

  1. 1. Geographic Routing in Intermittently-connected Mobile Ad Hoc Networks : Algorithms and Performance Models

    Författare :Erik Kuiper; Simin Nadjm-Tehrani; Di Yuan; Mats Ekman; Timothy Brown; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Communication is a key enabler for cooperation. Thus to support efficient communication humanity has continuously strived to improve the communication infrastructure. This infrastructure has evolved from heralds and ridden couriers to a digital telecommunication infrastructures based on electrical wires, optical fibers and radio links. LÄS MER

  3. 2. Mobility and Routing in a Delay-tolerant Network of Unmanned Aerial Vehicles

    Författare :Erik Kuiper; Simin Nadjm-Tehrani; Roberto Baldoni; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mobility models; routing; ad hoc networks; delay-tolerant networks; Computer science; Datalogi;

    Sammanfattning : Technology has reached a point where it has become feasible to develop unmanned aerial vehicles (UAVs), that is aircraft without a human pilot on board. Given that future UAVs can be autonomous and cheap, applications of swarming UAVs are possible. LÄS MER

  4. 3. Circumstellar Debris Disks : Observational Studies of Cold Dust and Gas Emission in Planetary Nurseries

    Författare :Ricky Nilsson; Alexis Brandeker; Mark Wyatt; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; circumstellar disks; debris disks; Kuiper belts; planet formation; submillimeter imaging; photometry; coronagraphy; integral-field spectroscopy; Astronomy; astronomi;

    Sammanfattning : Planetary systems form in disks of gas and dust surrounding newborn stars. The young circumstellar environment is characterized by frequent collisions between rocky bodies, leading to a continuous production of small dust grains. LÄS MER

  5. 4. Extrasolar Kuiper and asteroid belts Modelling far-infrared dust emission

    Författare :Joachim Wiegert; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Stars: binaries - Stars: circumstellar matter - Infrared: stars - Infrared: planetary systems - Submillimeter: stars;

    Sammanfattning : The first detections of circumstellar dust emission were announced in the mid 1980s. Direct observations of the edge-on disc of beta Pictoris provided evidence that the dust was part of possible planetary systems. About a decade later, in 1995, the first confirmed extrasolar planet around a main sequence star (51 Pegasi b) was announced. LÄS MER

  7. 5. Disentangling the Early History of the Solar System

    Författare :Simona Pirani; Astronomi - Genomgår omorganisation; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; planets and satellites: formation; planets and satellites: dynamical evolution and stability; Kuiper belt: general;

    Sammanfattning : Giant planets form out of a disc of gas and dust – called protoplanetary disc -- that surrounded the protosun at the time of its formation. While the cores of giant planets were growing via planetesimal and pebble accretion, they started to interact with the gas in the protoplanetary disc. LÄS MER