The improvement of the stand yield and economic benefits Cunninghamialanceolata (Lamb.) Hook, one most important plantation trees in China, has always been a concern. An appropriate planting density plays an role increasing productivity. To determine optimum C. lanceolata, we measured leaf morphology, gas exchange parameters, photosynthetic pigments replicate leaves on 4-year-old saplings grown...

a hydrophilic macromolecular network is prepared by performing graft copolymerization of poly (sodium acrylate) chains onto salep and silica gel. the reaction parameters affecting the water absorbency of the superabsorbent composite were optimized using taguchi method. ft-ir spectroscopy and thermo gravimetric analysis (tga) were used for confirming the structure of the final product and morpho...

Background: The shape of the capitellum has been traditionally described in anatomy books as part a sphere. Alteration capitellar morphology following pathologies such fractures, osteochondrosis, and degenerative arthritis associated with less optimum functional results. Aim: To define relationship between sphericity measured on trauma series plain radiographs elbow range motion. Methods: 40 pa...

nano zno/ montmorillonite composite were prepared by sol gel method under ultrasonic irradiation from directly mixing montmorillonite nano clay into zinc gel. the zn(ch3coo)2.2h2o and montmorillonite nano clay was used as precursor. the zinc acetate was dissolved in di water and, nh3 (aq) solution was dropped into the zinc solution until ph 9 consequently the zinc gel was produced. the montmori...

this study is concerned with the synthesizing of cu-zn nano-ferrite particles in the laboratory applying simple techniques. the morphology of the synthesized nano-particles was analyzed using transmission electron microscopy (tem), and the minerals were identified using x-ray diffraction (xrd). the nano material was used to replace 1- 4 percent by weight of portland cement in cement pastes and ...

Extra cation incorporations have been proved to enhance the properties of Cu2ZnSn(S, Se)4 materials, and help obtain high-efficiency solar cells. In this work, authors study influence extra tiny Mg2+ doping on films. Through tuning amount Mg into precursor solution, crystallization, morphology, light absorption, electrical all improved can reach optimum at 3% Mg-doping, which is in favour high-...