نتایج جستجو برای: insitu conservation
تعداد نتایج: 101616 فیلتر نتایج به سال:
The specification of tropical cyclone atmospheric forcing for ocean response models is described with emphasis on methods that are currently actively applied in basins rich in insitu, airborne and remotely sensed meteorological data. We emphasize approaches and critical issues addressed in more detail in this workshop’s special session on Tropical Meteorology. Five alternative wind fields devel...
Nanocomposite of NiAl2O4/SiO2 (NAS) was prepared through insitu solgel reaction, in which NiAl2O4 nanocrystals were dispersed in the silica glassy matrix. The prepared dried NAS gel, at 338 K, was heat treated to different temperature and identified the temperature range (1083 – 1163 K) of the nanocomposite formation through XRD patterns. From XRD patterns, crystallite size of NiAl2O4 particles...
Nowadays, SiC is one of the refractory materials which is used widespread because of its unique properties like structural stability in high temperatures. SiC nano whiskers are important in reinforcement of different kinds of composites like ceramic base materials, thanks to their outstanding mechanical, thermal, and chemical properties like low expansion coefficient, high thermal resistant, hi...
In the present investigation efforts have been made to synthesis polyvinyl pyridine (PvPy) /C60 conjugates through 2, 2-azobisisobutyronitrile (AIBN) initiated insitu polymerization of PvPy in scCO2.The process of synthesis was monitored under different reaction conditions ranging 1200-1800psi, 60-90 oC over 6 hours. The progress of polymerization was monitored rheoviscometrically. The concentr...
In the present work, magnetic zeolitehave been synthesized by insitu method using combination of iron oxide nanoparticlesFe3O4 and clinoptilolite. Fe3O4nanoparticleshave been synthesized electrochemically and then clinoptilolitewas added to solution. The Fe3O4 nanoparticles synthesized at the temperature of 90° C with applying the potential of 8V for 1800 seconds. The synthesized nanocomposite ...
Catenoid is the equilibrium shape formed between two coaxial circular rings. Mathematically the catenoid is a kind of the minimal surfaces. The catenoid is made by using soap film and we performed in-situ observation of catenoid by varying distance between two rings. It is shown that the shape of soap film does interesting behavior. The behavior can be explained from the point of view of the dy...
Self-cleansing of transition metal nitrides is discovered to take place during ultrahigh vacuum annealing of TiN, NbN, and VN thin films. Native oxide layers from air exposure disappear after isothermal anneal at 1000 °C. Also, for TiN, the Ti 2p and N 1s X-ray photoelectron spectra (XPS) recorded after the anneal are identical to those obtained from insitu grown and analyzed epitaxial TiN(001)...
An Integrated Earth Sensing demands seamless access to large-scale geospatial data gathered by remote sensing and in-situ sensor network deployments. To that end, the Global Earth Observation (GEO) Grid provides a framework for sharing a wide array of scientific information such as satellite data, geologic maps, and insitu sensing data in a standards-compliant manner. In this paper, we describe...
There is a real and increasing need to monitor the presence and growth of cracks in key regions ofplant within the nuclear, gas and chemical industries [1]. A rugged, permanently attached sensor, capable of operating at temperatures in excess of 400° C, would have substantial benefits, since it would reduce the down-time costs incurred through the forced inspection of known or suspected flaws. ...
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