Essays about: "deterioration of water"

Showing result 31 - 35 of 51 essays containing the words deterioration of water.

1. 31. Jäst i grönmassa för ensilering : en undersökning på svenska gårdar

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

   Author : Linnéa Stolt; [2014]
   Keywords : Vallfoder; Ensilage; Varmgång; Lagringsstabilitet; PCR;

   Abstract : Oönskade mikroorganismer som jäst och mögel finns naturligt på grönmassan som körs in från åkern. Det är viktigt att minska antalet av dessa eftersom foderkvalitén kan påverkas negativt. Ett sätt att göra detta är att konservera grönmassan genom ensilering. READ MORE

3. 32. Orsaker till problem med skal-fasthet hos matpotatis

   University essay from SLU/Dept. of Crop Production Ecology

   Author : Gabriella Olsson; [2014]
   Keywords : skalfasthet; periderm; skal; skalmognad; matpotatis; kalcium; torquemeter; knölar; phellem; phellogen; ; phelloderm; skalfinish ;

   Abstract : Idag ställs stora krav på matpotatisen utseende. Att förbättra skalfinishen är många gånger önskvärt för matpotatisodlaren. En försämring av skalfastheten hos etablerade matpotatissorter har uppmärksammats av Lars Bolin, VD på Svensk Potatis. READ MORE

4. 33. Experimental Analysis of Variable Capacity Heat Pump Systems equipped with a liquid-cooled frequency inverter

   University essay from KTH/Tillämpad termodynamik och kylteknik

   Author : Thair Ebraheem; [2013]
   Keywords : inverter-driven compressor; liquid-cooled inverter; variable capacity heat pump; variable speed compressor;

   Abstract : Using an inverter-driven compressor in variable capacity heat pump systems has a main drawback, which is the extra loss in the inverter. The present experimental study aims to recover the inverter losses by using brine-cooled and water-cooled inverters, thereby improving the total efficiency of the heat pump system. READ MORE

5. 34. Water Situation In China - Crisis Or Business As Usual?

   University essay from Industriell miljöteknik

   Author : Elaine Leong; [2013]
   Keywords : water; water crisis; water pollution; China; Yangtze River; Yellow River; Huai River; Hai River; Tarim River; Pearl River; Falkenmark Water Scarcity Index; Global threats to human water security and river biodiversity; Physical and economic water scarcity index; Water stress indicator taking environmental water requirements into account; Heihe River; China s future water demand; China s water future;

   Abstract : Several studies indicates China is experiencing a water crisis, were several regions are suffering of severe water scarcity and rivers are heavily polluted. On the other hand, water is used inefficiently and wastefully: water use efficiency in the agriculture sector is only 40% and within industry, only 40% of the industrial wastewater is recycled. READ MORE

6. 35. Landscape Changes and Loss of Ecosystem services of Houay Mak Hiao River : a Study in a Rapidly Developing City (Vientiane, Laos)

   University essay from Högskolan Kristianstad/Sektionen för lärande och miljö

   Author : Janne Kolehmainen; Pontus Axén; [2013]
   Keywords : Water quality; channelization; landscape science; wetlands; Vientiane; ecosystem services; Vattenkvalitet; kanalisering; landskapsvetenskap; våtmarker; Vientiane; ekosystemtjänster;

   Abstract : This project was conducted in Vientiane, Laos where wetlands, channels and rivers play an important role for the water quality maintenance. Now, large landscape changes like backfilling of wetlands and channelization is affecting the condition of the urban waters which has become extremely polluted. READ MORE