Essays about: "passage efficiency"

Showing result 1 - 5 of 21 essays containing the words passage efficiency.

  1. 1. Evaluating an increased spill regime as a management tool to improve downstream passage of salmon smolt

    University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Author : Mattias Hansson; [2022]
    Keywords : hydraulic modeling; hydroacoustic telemetry; time to event analysis; hydraulisk modellering; överlevnadsanalys; hydroakustisk telemetri;

    Abstract : The anadromous Atlantic salmon (Salmo salar) is dependent on river connectivity to reach spawning and rearing habitats in rivers. Most rivers are today fragmented by artificial barriers such as hydroelectric powerplants (HEP) which impede this migratory movement. READ MORE

  3. 2. Back analysis of rock mass properties in the regional fault zone under Lake Mälaren

    University essay from KTH/Jord- och bergmekanik

    Author : Jiaqi Liu; [2022]
    Keywords : Rock mass property; back analysis; tunnel deformation; optimization algorithm; numerical analysis; Bergmassans egenskaper; bakåtanalys; tunnleldeformation; optimeringingsalgoritm; numeriska analyser.;

    Abstract : The properties of the surrounding rock mass in underground projects have significant impacts on the design and construction. However, it is quite challenging to evaluate rock mass properties due to the great uncertainties of the geological conditions. READ MORE

  4. 3. Impact of different primary particles on Geant4 simulation execution time - study on protons and pions

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Rebecca Jigström Madeira; [2021]
    Keywords : Geant4; Monte Carlo method; Large Hadron Collider; simulation time; collider experiment; Physics and Astronomy;

    Abstract : The High Luminosity Large Hadron Collider (HL-LHC) at CERN, an improvement to the LHC, scheduled to be operating in 2027, will further the potential for scientific breakthroughs in High Energy Physics. The project’s demand in computational resources, however, is predicted to exceed what will be available then. READ MORE

  5. 4. The digesta passage rate among dairy cows with different abilities to consume large quantities of roughage : its impact on the milk production, and the reliability of the chemical fibre marker

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Maria Elisabeth Eklund; [2020]
    Keywords : chemical markers; chromium; chromium mordanted fibre; cobalt; concen-trate level; EDTA; iNDF; mean re-tention time; ethylenediaminetetraacetic acid; forage consumption; indigestible neutral detergent fibre; liquid digesta phase; MRT; rumen evacuation; sol;

    Abstract : The objectives of the present master thesis were to investigate the passage rate among lactating Holstein and Swedish red dairy cows to investigate the hypotheses of: 1) The cows’ individual total mean retention time (TMRT) has a negative relationship to the cows’ individual forage intake capacity. 2) A reduced TMRT contributes to a reduced feed efficiency, but a higher milk yield. READ MORE

  6. 5. Faktorer som påverkar proteinnedbrytning och kväveeffektivitet hos mjölkkor

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Kajsa Ståhlberg; [2020]
    Keywords : protein; kväve; nedbrytning; utnyttjande; mikroorganismer; våmmen; urea; mjölkko;

    Abstract : Svenska mjölkkor utfodras idag med en stor andel protein för att upprätthålla en hög mjölkproduktion. Protein är ett viktigt näringsämne som bland annat stimulerar syntes av mjölk. För att säkerställa en hög mjölkavkastning finns det en risk att mjölkkon överutfodras med protein som inte kan utnyttjas. READ MORE