Search results

This work reports on results from two phase heat transfer devices assembled with ceramic capillary structure.
It is firstly presented the manufacturing of the ceramic wick structures and afterwards the characterization of the morphological- and fluid-dynamical properties of these ceramic wick structures.
In contrast with the wick structure of the LHP, the CPL ceramic wick structure has grooves over its entire circumference.
Table 2 and Table 3 present morphological- and fluid-dynamical properties of the wick structures.
Rambo, Porous ceramic structures for capillary pumped loops., Topics in Chemistry and Material Science 01 (2010) 131-137

The FTIR data show that the main functional groups in the polymeric film structure are C-H (3000 cm-1 to 2900 cm-1), C-O-C and C-O (1200 cm-1 to 900 cm-1) similar to the polyethylene oxide (PEO) structure.
The pp-diglyme films and polyurethane structures were studied through FTIR obtained by a Perkin Elmer Lambda-25TM spectrometer.
The increase of RF power coupled to plasma discharge produces a much more reactive chemistry causing monomer fragmentation in small chemical units.
It can be seen from the spectra that the molecular PEO-like structure of pp-diglyme in (b) is quite similar to PEO (a).
Fridman, Plasma Chemistry, Cambridge University Press, New York, 2008

Shape-Controlled Synthesis and Pattern Recognition of core-shell Co-Al Hydroxides Superstructures Pengcheng HE1, a, Xiaobo JI1,b, Qing ZHANG1, Yifei LIU1 and Wencong LU1, c 1Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
Samples of core-shell structures are grouped into “class1”, while the others are grouped into “class2”.
The experimental results confirmed sample “A” was core-shell structures,and sample “B” was not core-shell structures.
The TEM images of the products with new experimental conditions designed for core-shell Co-Al Hydroxides structures.
Nature Chemistry, Volume: 2010, 2:454–460Year published:

Acrylic acid (AA), N.N-Dimethylformamide(DMF), ethanol(CH3CH2OH) were purchased from XiLong Chemistry Industry (Shantou, China).
PVP is used as the scecond network to structure semi- interpenetrating polymer networks.
As showed in fig.3, there are numerous pore structures in the sample after added PEG2000.
The pore structures provide channels for hydrone to enter hydrogels.
Flory: Principles of Polymer Chemistry [M]. 15th ed.

Preparation of size and morphology controlled Gold Nanoparticles in Micro-emulsion and in Aqueous Yanbiao Zhang 1, a, Xiaohui Zhang 2,b, Hongzong Yin 3,c 1,2,3 College of Chemistry and Material Science, Shandong Agricultural University, Tai’an271018, China azhangyanbiaomc@126.com, bzhxiaohui16@163.com, chzyin@sdau.edu.cn (corresponding author) 3 Corresponding Author.
They all had homogeneous distribution and dense structures.
Rosenzweig, Development of an aggregation-based immunoassay for anti-protein A using gold nanoparticles, Analytical Chemistry 74 (2002) 1624-1628
Giersig, Formation of colloidal silver nanoparticles: capping action of citrate, The Journal of Physical Chemistry B 103 (1999) 9533-9539

Mickiewicza 30, 30-059 Krakow, Poland 4 AGH University of Science and Technology, Faculty of Material Science and Ceramics, Department of Silicate Chemistry, al.
The titanium carbide powders with variable content of carbon in structure were synthesized by the SHS method.
In the case of the B sample the chromium carbide was fully dissolved in titanium carbide structure.
The very low parameters values confirms chromium dissolution in titanium carbide structure.
Tulhoff: Carbides, Ulmann’s Encyclopedia of Industrial Chemistry, VCH, Verlag, Vol.

The three-dimensional vibration sensor structure is shown in Figure 1.
Simulate the micro-structure in these parameters, and then read the first four modes.
Fig.9, micro-structure of level and Vertical detection unit We used sensor auto calibration system TV5220 and its instruments to calibrate the micro-structure.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

TiO2 nano-powders as potential low-temperature optical gas sensors Marko Eltermann, Sven Lange, Kathriin Utt, Urmas Joost, Ilmar Kink, Valter Kiisk, Ilmo Sildos, Institute of Physics, University of Tartu, Riia 142, Tartu Estonia marko.eltermann@ut.ee Keywords: TiO2, gas sensor, oxygen, low temperature, surface chemistry, rare earth ions, optical, photoluminescence Abstract: Present work investigates the applicability of nano-sized TiO2 (anatase) as a potential optical sensor material for ambient oxygen below room temperature.
The gas response of the sensor is characterized via the photoluminescence (PL) intensity considering the effects of the surface chemistry, temperature, UV irradiation, humidity and powder nanoscale morphology.
After drying in vacuum rotator and annealing at 800 oC in oxygen to form a crystalline structure, the nano-crystallites were notably aggregated (see Fig. 1a).
Somewhat similar enhanced absorption in the UV has previously been noted by us in case of the ion implanted HfO2 and ZrO2 where the highly defective crystal structure was caused by the ballistic bombardment with ions.

One is manufacturing a guide structure [8, 9], the other is chemical modification [10, 11].
Analytical Chemistry, 2002. 74(7): p. 1565-1571
Analytical Chemistry, 2000. 72(7): p. 1711-1714
Analytical Chemistry, 2001. 73(22): p. 5551-5556
Analytical Chemistry, 2002. 74(7): p. 1724-1728

The absorption spectra of complexes inside PMM are similar to obtained in solutions that confirm the formation of complexes with identical structure both into a polymeric matrix and solutions [9].
Saranchina, Analytical properties of 1-(2-pyridylazo)-2-naphthol immobilized on a polymethacrylate matrix, Journal of Analytical Chemistry, 64 (2009) 226-230
Mokhova, Redox and acid-base properties of 2,6-dichlorophenolindophenol immobilized on a polymethacrylate matrix, Journal of Analytical Chemistry, 65 (2010) 17-20
Mokrousov, A sensitive optical element for mercury (II), Journal of Analytical Chemistry, 62 (2007) 832-836
Dzhiganskaya, An optical sensor for determination of ascorbic acid, Journal of Analytical Chemistry, 59 (2004) 871-874