Search results

Release Behavior of W/O/W-type Microcapsule Masumi Uehara1,2,a, Yuuka Yoshinaga1, Tomohiro Ogawa1, Yasuyuki Maki1, Hiroyuki Takeno1, Takao Yamamoto1, Kimio Ichikawa3 and Toshiaki Dobashi1 1 Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Kiryu, Gunma 376-8515, Japan 2 School of Radiological Technology, Gunma Prefectural College of Health Sciences, Maebashi, Gunma 371-0052, Japan 3 Fuji Photo Film Co., Ltd., Fujinomiya Res.
To apply the microcapsules for each purpose, it is necessary to understand the relationship between the preparation condition, the structure and the release behavior.
Results and discussion As shown in the electron microphotograph of Fig. 1(a) and (b), microcapsules have (a) single- and (b) multi-porous structure.
The size of the porous structure inside of the microcapsules was considerably different in each preparation method.
The release behavior is to be explained in relation to this structure.

Kurzydłowski1e 1 Warsaw University of Technology, Faculty of Materials Science & Engineering, Woloska 141 02507 Warsaw, Poland 2 Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3 00-664 Warsaw, Poland a aozieblo@inmat.pw.edu.pl, bkako@inmat.pw.edu.pl, cbobryk@ch.pw.edu.pl, d szafran@ch.pw.edu.pl, e kjk@inmat.pw.edu.pl Keywords: FGM, composites, stereology, ceramics Abstract.
If this is true, then by its nature it could by used to produce gradient structure due to the segregation of light and heavy particles under the influence of gravity.
As shown on Fig. 2, magnetic field used during the slip casting process results in gradient structure.
Quantitative analysis revealed that composites obtained in this way have homogenous structure as the shape and size of Fe particles is concerned.
O'Neill: "The temperature dependance of the cation distribution in synthetic hercynite (FeAl2O4) from in-situ neturon structure reinements".

Generally speaking, preparation methods have important effect on the structures and properties of the NiCo2O4 materials.
Many researchers [5–7] have focused on the preparation methods and the relationship between preparation methods, the structures and properties of NiCo2O4.
It is evident that the products are pure NiCo2O4 because all the diffraction peaks can be indexed to NiCo2O4 and matched well with a cubic crystal structure (JCPDS file No. 73-1702, Fd-3 m).
From these results, it can be clearly found that the largest surface area of the samples was obtained by hydrothermal method, which is caused by the fine spherical structured particles.
Since the particles with uniform spherical structure and large surface area were prepared, the hydrothermal method is a promising preparation method for NiCo2O4 nanoparticles.

Camassel1,f 1Groupe d’ Etude des Semiconducteurs, Université Montpellier 2 and CNRS, cc 074 GES, 34095 Montpellier Cedex 5, France. 2Physic Departement, Aristotle University of Thessaloniki , GR54124 Thessaloniki. 3Department of Physics, Chemistry and Biology, University of Linköping, Sweden.
In Fig. 2 we show two HRTEM cross-sectional images which represent two (different) local structures.
All energies around 2.75 eV can be associated with 3 BLs of 3C (as shown in Fig.1), as well as a 6H structure with ~  18 BLs thickness even if these latter structures were not found from the HRTEM images, due to the very small area of observation.
The HRTEM structures with optical signatures about 2.6 eV and 2.5 eV have not also been identified.
The structures observed in HRTEM are indicated by stars.

whole structure of system （1）hardware system The whole structure of double-tank liquid level control system is shown in Fig.1.
System whole structure Turbo flow meter Turbo flow meter is a speed flow meter.
Pumps The fixing of water pumps adopts pipeline structure and uses for the water supply of whole system.
They have cushion trough, work trough and spill trough, which structure is especial.
Chemistry Industry Press, 2007 [3] Noura Hassan, Theilliol Didier, Sauter Dominique.

The design principle and application of thermally protected metal oxide varistor TMOV Sa Zhang1,2, a, Zhonghou Xu2,b, Shi Chen2,b, Yousheng Xu2,b, Genhua Wu1,c 1College of Chemistry and Chemical Engineering, Teachers College of Anqing, Anqing, Anhui 246011, P.R.
Structure and performance of TCO There are two types of thermal fuse with different work principles.
The structure is classified as axial-type and radial-type which respectively showed in fig.4(a) and fig.4(b).
For this demand, we develop a thermally protected metal oxide varistor called TMOV with the structure showed in fig.6(a) and fig.6(c).
The design structure can rapidly transfer the heat from MOV to TCO, and thus effectively improved the temperature-sensitive degree.

To study the microwave effects on activated sludge, a Shanghai Sineo Microwave (Chemistry Technology Co., Ltd, China; 0-1000 W, 2450 MHz frequency; maximum temperature: 400℃), was used.
The structure of microbes in the activated sludge was photographed through microscope.
The increase of DNA in EPS may indicate the rupture of cell structures within activated sludge flocs.
It can be concluded that the microwave irradiation can easily destroy the molecular structure of proteins.
A distinct increase of DNA in the bulk solution may indicate the break of cell structure.

Making concrete structures with the use of digital technologies also requires new approaches to reinforcement realization.
A polymer film fills the porous space and occurring defect spots, sealing and additionally connecting the component of the cement stone structure, which provides th conditions for forming a more high-strength and elastic structure.
Mantellato and Serina Ng, Hydration and rheology control of concrete for digital fabrication: Potential admixtures and cement chemistry, Cement and Concrete Research. 112 (2018) 96-110
Construction of Unique Buildings and Structures, 1(52) 27-46
Efremov, Dilatancy of Colloidal Structures and Polymer Solutions, Achievements of Chemistry. 51(2) (1982) 285-310.

Electrochemical Characterization of Silver-Platinum Various Ratio Bimetallic Nanoparticles Modified Electrodes Fredrick Okumu1, a, Mangaka Matoetoe2, b* 1, 2Department of Chemistry, Cape Peninsula University of Technology, Tennant Street, P.O.
This further indicates that the electronic structure and the surface physicochemistry of GCE/Ag-Pt NPs 1:1 is beneficial for electron transfer as reported with other modified electrodes [53, 54].
The results presented a clear contribution of Pt NPs on Ag NPs as well as its distribution in the resulting bimetallic structures as characterized by CV analysis.
Li, Preparation, Structure, and Electrochemical Properties of Reduced Graphene Sheet Films, Adv.
Electroanalytical Chemistry.

In fact, the continuous pores structure of biochar serves as the habitat for soil microbes [6].
In the study of Yue et al. (2019), nanoscale biochar, carbonized at 600oC, have more developed pore structure and higher absorption capacity as well as surface reactivity that its bulk biochar (at 600oC) and other nanoscale biochar carbonized at lower temperatures [7].
This signifies that more minerals are concentrated in the nanoparticles aside from the relevance of amorphous structure due to the high pyrolysis temperature that degrades most of its cellulose [15].
Initially, the surface topography of the nanoscale biochar was mostly of well-developed macropores (Figure 4a), the highly porous structures became occupied with the nutrients as shown in Figure 4b.
Constrasting effects of operating conditions and biomass particle size on bulk characteristics and surface chemistry of rice husk derived-biochar.