نتایج جستجو برای: double tube method
تعداد نتایج: 1915906 فیلتر نتایج به سال:
The assembly of nanoparticles into three-dimensional (3D) architectures could allow for greater control of the interactions between these particles or with molecules. DNA tubes are known to form through either self-association of multi-helix DNA bundle structures or closing up of 2D DNA tile lattices. By the attachment of single-stranded DNA to gold nanoparticles, nanotubes of various 3D archit...
In angiosperms, pollen tubes carry two sperm cells toward the egg and central cells to complete double fertilization. In animals, not only sperm but also seminal plasma is required for proper fertilization. However, little is known regarding the function of pollen tube content (PTC), which is analogous to seminal plasma. We report that the PTC plays a vital role in the prefertilization state an...
At present study, thermal performance of a double tube heat exchanger due to stream air/water two phase flow through inner is experimentally studied. Air and hot water were mixed in T-junction outside then followed into exchanger. Told rate was kept constant equal 2 lit/min. For rate, four different rates 3, 4, 5 6 lit/min considered. Also inlet temperature cold streams almost within range 17–1...
Cell-cell communication and interaction is critical during fertilization and triggers free cytosolic calcium ([Ca2+]cyto) as a key signal for egg activation and a polyspermy block in animal oocytes. Fertilization in flowering plants is more complex, involving interaction of a pollen tube with egg adjoining synergid cells, culminating in release of two sperm cells and their fusion with the egg a...
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