Carbonized sorghum straw derived 3D cup-shaped evaporator with enhanced evaporation rate and energy efficiency
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According to evaporation data during the 10 years of 1986-1995 at hydrological stations in Chongli,this paper analyzed meteorological factors affecting evaporation,and compared the differences in the evaporation results between the 20cm diameter evaporator and E601 evaporator.The reason why results measured by 20cm diameter evaporator were larger and,the relationships between the evaporation results measured by the two evaporators were further delineated.
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The experiment was conducted in Research Station in Gadarif State,Sudan to measure the digestibility of (Dry matterDM, Crud protein- CP and Crud fiber- CF) of three types of crop residues (Sorghum, Groundnut and Sesame straw) in feeding nine local Sudanese Sheep Lambs. The results indicate that the sesame straw, ground nut straw and sorghum straw results were 50.07 %, 45.97 % and 33.17 % respectively and was significant (P> 0.05).For crud protein-CP, sorghum straw, groundnut straw and sesame straw result were 47.10% , 24.27 % and 19.30% respectively and was significant (P> 0.05).For Crud fiber CF sesame straw, sorghum straw and groundnut straw result were 49.90 % , 27.70 % and 11.52 % respectively and was significant (P > 0.05).
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HNBR/short aramid fiber(DCAF)/fibrillar silicate(FS) composites were prepared by mechanical blending of in situ modified FS,DCAF and HNBR.The effects of the addition levels of DCAF and FS,and different lengths of DCAF on the structure and properties of the composites were investigated.The results showed that the moduli of the composites under both tension and compression conditions at small strain were increased by adding DCAF;the tensile properties and anisotropy of the composites could be improved when the length or addition levels of DCAF increased;the stress-strain behavior and compression modulus of the composites were improved significantly by adding FS.
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Бұл зерттеужұмысындaКaно моделітурaлы жәнеоғaн қaтыстытолықмәліметберілгенжәнеуниверситетстуденттерінебaғыттaлғaн қолдaнбaлы (кейстік)зерттеужүргізілген.АхметЯссaуи университетініңстуденттеріүшін Кaно моделіқолдaнылғaн, олaрдың жоғaры білімберусaпaсынa қоятынмaңыздытaлaптaры, яғнисaпaлық қaжеттіліктері,олaрдың мaңыздылығытурaлы жәнесaпaлық қaжеттіліктерінеқaтыстыөз университетінқaлaй бaғaлaйтындығытурaлы сұрaқтaр қойылғaн. Осы зерттеудіңмaқсaты АхметЯсaуи университетіндетуризмменеджментіжәнеқaржы бaкaлaвриaт бaғдaрлaмaлaрыныңсaпaсынa қaтыстыстуденттердіңқaжеттіліктерінaнықтaу, студенттердіңқaнaғaттaну, қaнaғaттaнбaу дәрежелерінбелгілеу,білімберусaпaсын aнықтaу мен жетілдіружолдaрын тaлдaу болыптaбылaды. Осы мaқсaтқaжетуүшін, ең aлдыменКaно сaуaлнaмaсы түзіліп,116 студенткеқолдaнылдыжәнебілімберугежәнеоның сaпaсынa қaтыстыстуденттердіңтaлaптaры мен қaжеттіліктерітоптықжұмыстaрaрқылыaнықтaлды. Екіншіден,бұл aнықтaлғaн тaлaптaр мен қaжеттіліктерКaно бaғaлaу кестесіменжіктелді.Осылaйшa, сaпa тaлaптaры төрт сaнaтқa бөлінді:болуытиіс, бір өлшемді,тaртымдыжәнебейтaрaп.Соңындa,қaнaғaттaну мен қaнaғaттaнбaудың мәндеріесептелдіжәнестуденттердіңқaнaғaттaну мен қaнaғaттaнбaу деңгейлерінжоғaрылaту мен төмендетудеосытaлaптaр мен қaжеттіліктердіңрөліaйқын aнықтaлды.Түйінсөздер:сaпa, сaпaлық қaжеттіліктер,білімберусaпaсы, Кaно моделі.
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Portable water purification
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A scalable processing method was used to fabricate graphite fiber composites with single-walled carbon nanotubes (SWCNTs) and the microstructures and properties of the fabricated laminates were investigated. SWCNTs were sprayed onto the surface of graphite/epoxy prepreg using an air spray. Interlaminar shear strength (ILSS) tests showed that the air spray processing had minimal effect on the quality of the laminates. Scanning electron microscopy (SEM) studies showed that SWCNTs are distributed uniformly in the plane of the laminate but not in the thickness direction due to low resin flow during cure. At high concentrations (>1.0 wt%), combination of a rather thick band of SWCNTs and low resin flow caused lack of resin inside of SWCNT bundles. The properties positively affected are in-plane shear strength, interlaminar fracture toughness (mode I), compressive strength, and electrical conductivity. Those properties showed improvement particularly when a lower concentration of SWCNTs was used. Fractography study using SEM showed altered crack propagation and crack bridging due to the presence of SWCNTs. The out-of-plane electrical conductivity was improved by 144% for 2 wt% SWCNT samples compared to samples without SWCNTs.
Fractography
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