Essays about: "probe"

Showing result 16 - 20 of 476 essays containing the word probe.

1. 16. Towards a setup for narrowband terahertz generation through difference-frequency mixing of chirped ultrashort pulses

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Isa Clementsson; [2023]
   Keywords : Physics and Astronomy;

   Abstract : Terahertz radiation is a useful tool for inducing lower-energy excitations in matter, where it can be used to cause structural changes through direct interaction with the crystal lattice. Sub-picosecond optical pulses can be used to generate intense broadband terahertz pulses through optical rectification in nonlinear crystals, reaching peak electric fields of several MV/m and conversion efficiencies as high as a few percent. READ MORE

3. 17. Vattenbalansberäkningar som metod för bevattningsplanering : Efterhandsvalidering i svenska bevattningsförsök med olika bevattningsstrategier i vall

   University essay from SLU/Dept. of Soil and Environment

   Author : Carl Andås; [2023]
   Keywords : bevattning; Penman-Monteith; markvattenhaltsmätningar; evapotranspiration;

   Abstract : Bevattning för med sig många effekter som vore önskvärda i dagens svenska lantbruk, som präglas av ökade produktionsrisk till följd av höga produktionskostnader men samtidigt ökade avräkningspriser. Efterfrågan på bevattningskompetens och effektiv bevattningsplanering för att kunna hushålla med begränsade vattenresurser kan förväntas öka i vår tid. READ MORE

4. 18. James Webb Space Telescope Observations of Jupiter’s Moon Europa

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Aulon Nura; Isac Engblom; [2023]
   Keywords : ;

   Abstract : The creation of life has puzzled humanity since the dawn of time. With the launch of thecutting-edge James Webb Space Telescope (JWST) at last year's closing, the next step in humanity'ssearch for life has been taken. READ MORE

5. 19. The tangled Warp of the Milky Way

   University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

   Author : Viktor Hrannar Jónsson; [2023]
   Keywords : Galaxy: structure; Galaxy: kinematics and dynamics; Galaxy: disk; Galaxy: evolution; Physics and Astronomy;

   Abstract : Context: The Milky Way disc, like the discs of many other spiral galaxies, has been shown to be warped. The growing astrometric data set for stars produced by the Gaia mission allows for more detailed studies of the stellar disc's warp. READ MORE

6. 20. Probing the Structure of Ionised ISM in Lyman-Continuum-Leaking Green Pea Galaxies with MUSE

   University essay from Uppsala universitet/Institutionen för fysik och astronomi

   Author : Chinmaya Nagar; [2023]
   Keywords : Emission-line ratio; Gaussian convolution; Green pea galaxies; ISM; Ionised ISM; Lyman continuum LyC ; Low-Redshift Lyman Continuum Survey LzLCS ; Lyman continuum emitter LCE ; LyC escape; LyC escape fraction; MUSE; MPDAF; Voronoi binning;

   Abstract : Lyman continuum (LyC) photons are known to be responsible for reionising the universe after the end of the Dark Ages, which marked a period called the Epoch of Reionisation (EoR). While these high-energy photons are thought to predominantly originate from young, hot, massive stars within the earliest galaxies, and contributions from high-energy sources like quasars and AGN, the origins of these photons are yet not well known and highly debated. READ MORE