The Cross-Chain Configuration and a New Type of Phase Transformation in Solid Long Chain Acid Amides

1955 ◽  
Vol 10 (12) ◽  
pp. 1040-1048 ◽  
Author(s):  
Tosio Sakurai
Keyword(s):  
Phase Transformation ◽  
New Type ◽  
The Cross ◽  
Long Chain ◽  
Chain Configuration

A New Design of a Piezoelectric Triaxial Micro-Accelerometer

2015 ◽  
Vol 645-646 ◽  
pp. 841-846 ◽  
Author(s):  
Jian Yan Wang ◽  
Ting Ting Wang ◽  
Hang Guo
Keyword(s):  
Simulation Analysis ◽  
Structural Parameters ◽  
Sol Gel ◽  
Triaxial Accelerometer ◽  
Response Frequency ◽  
Pzt Films ◽  
New Type ◽  
The Cross ◽  
Cross Axis ◽  
Micro Accelerometer

Accelerometer in MEMS always is made by capacitive or piezoresistive, whose dynamic response is not good, the operating frequency is narrow, and the cross-axis sensitivity is low. A new type of piezoelectric micro-accelerometer is designed, and its structure is “x” type. The sensing unit is piezoelectric PZT films, which is achieved by sol-gel method. The accelerometer is a triaxial accelerometer. The theoretical and simulation analysis is used to achieve the charge sensitivity and response frequency, and also get the optimal structural parameters. A new circuit connection is proposed to improve the sensitivity and avoid the cross-axis sensitivity. The design achieves the z-axis sensitivity with more than 40 pC/g, x, y-axis sensitivity with more than 8pC/g, and the response frequency is about 3000Hz.

A new type of surface-active organotransition metal complex: (long-chain alkyl substituted benzene)(cyclopentadienyl) iron(1+) cationic complexes

1988 ◽  
pp. 663 ◽  
Author(s):  
Shizuyoshi Sakai ◽  
Hidetoshi Kozawa ◽  
Yuichiro Yoshinaga ◽  
Kuniuo Kosugi ◽  
Shinichi Fukuzawa ◽  
...  
Keyword(s):  
Metal Complex ◽  
New Type ◽  
Surface Active ◽  
Long Chain

Investigation of the Formation of Microbubbly Liquid Fuel

2009 ◽  
Author(s):  
Emine Celik ◽  
Joseph Katz ◽  
David M. Van Wie
Keyword(s):  
Liquid Fuel ◽  
Gas Bubbles ◽  
Supersonic Combustion ◽  
Short Chain ◽  
Experimental Facility ◽  
Second Stage ◽  
Thermal Pyrolysis ◽  
New Type ◽  
Supersonic Combustion Ramjet ◽  
Long Chain

There are several obstacles encountered during combustion in Supersonic Combustion Ramjet (SCRAMJET) engines such as mixing, ignition, and flame holding. In order to overcome these difficulties, a new type of fuel is generated with the use of combination of two methods namely an effervescent (barbotage) and thermal pyrolysis of the fuel. In the first step of the process, during effervescent method, small gas bubbles are introduced into liquid fuel to improve the spraying characteristics of the fuel. At the second stage, long-chain hydrocarbons are broken down into short-chain hydrocarbons that burn faster. An experimental facility has been designed and developed to study the underlying physics in each process.

Study on the Uniform Distributed Mechanics of Ink Droplet in Inkjet Printing Equipment

2011 ◽  
Vol 236-238 ◽  
pp. 1505-1507
Author(s):  
Qi Feng Chen ◽  
Shi Lin Yuan ◽  
Guang Xue Chen ◽  
Bao Lin Tang ◽  
Jing Lei Tai
Keyword(s):  
Theoretical Calculation ◽  
Inkjet Printing ◽  
Testing Equipment ◽  
Cross Direction ◽  
Uniform Velocity ◽  
New Type ◽  
Printing System ◽  
The Cross

This paper studied on the hydrokinetics and uniform distributed mechanics of supplying ink pressure for the inkjet printing system based on the, and the advanced testing equipment. According to the analysis of theoretical calculation and CFD, we designed a new type of equipment for supplying ink, including the structure of the transition pipe. This supplying ink equipment could make the ink droplets distribute under the equal pressure on the cross direction. The experiments showed that this new supplying ink equipment could make the ink droplets distribute under the equal pressure and uniform velocity on the cross direction, so it greatly improved the imaging effects for the inkjet printing system.

Two novel metal-independent long-chain alkyl alcohol dehydrogenases from Geobacillus thermodenitrificans NG80-2

Microbiology ◽  
2009 ◽  
Vol 155 (6) ◽  
pp. 2078-2085 ◽  
Author(s):  
Xueqian Liu ◽  
Yanpeng Dong ◽  
Jing Zhang ◽  
Aixiang Zhang ◽  
Lei Wang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Sequence Analysis ◽  
Isopropyl Alcohol ◽  
Geobacillus Thermodenitrificans ◽  
Assay Condition ◽  
Alcohol Dehydrogenases ◽  
Adh Genes ◽  
New Type ◽  
Long Chain

Two alkyl alcohol dehydrogenase (ADH) genes from the long-chain alkane-degrading strain Geobacillus thermodenitrificans NG80-2 were characterized in vitro. ADH1 and ADH2 were prepared heterologously in Escherichia coli as a homooctameric and a homodimeric protein, respectively. Both ADHs can oxidize a broad range of alkyl alcohols up to at least C30, as well as 1,3-propanediol and acetaldehyde. ADH1 also oxidizes glycerol, and ADH2 oxidizes isopropyl alcohol, isoamylol, acetone, octanal and decanal. The best substrate is ethanol for ADH1 and 1-octanol for ADH2. For both ADHs, the optimum assay condition is at 60 °C and pH 8.0, and both NAD and NADP can be used as the cofactor. Sequence analysis reveals that ADH1 and ADH2 belong to the Fe-containing/activated long-chain ADHs. However, the two enzymes contain neither Fe nor other metals, and Fe is not required for the activity, suggesting a new type of ADH. The ADHs characterized here are potentially useful in crude oil bioremediation and other bioconversion processes.

Studies of the optically active compounds of anacardiaceae exudates. I. The long-chain Alicyclic Keto Alcohol of Tigaso oil

1958 ◽  
Vol 11 (1) ◽  
pp. 46 ◽  
Author(s):  
LK Dalton ◽  
JA Lamberton
Keyword(s):  
High Pressure ◽  
Hydrochloric Acid ◽  
Catalytic Hydrogenation ◽  
Optically Active ◽  
Alkyl Ether ◽  
Acidic Properties ◽  
Yellow Solution ◽  
Major Reaction ◽  
New Type ◽  
Long Chain

Tigaso oil, which is obtained as an exudate from a tree of the Anacardiaceae family identified as Campnosperma sp. vel. aff. C. brevipetiolata Volk., has been found to contain an optically active compound. This is considered to be (+)-5-hydroxy-5-(nonadec- 10'-en-2'-onyl)cyclohex-2-enone (V), a new type of natural product. It is very closely related to the phenol, campnospermonol (I ; R=H) which is the major component of Tigaso oil, and is readily converted into a mixture of campnospermonol and campnospermonyl alkyl ether by heating in alcoholic hydrochloric acid. On pyrolysis, V yields resorcinol and methyl oleyl ketone almost quantitatively. ($)-3-Hydroxy-3-(nonadecan-2'-ony1)cyclohexanone (VI) obtained by catalytic hydrogenation of V is easily dehydrated to 3-(nonadecan-2'-onyl)cyclohex-2-enone (VII) which has acidic properties and gives a yellow solution in alkali. Heating VII in alkali gives stearic acid and 3-methylcyclohex-2-enone as the principal products. When the hydroxydiketone (VI) is heated the major reaction is dehydration to give VII, but pyrolysis also takes place, giving methyl stearyl ketone and dihydroresorcinol. 3-(Nonadecan-2'-ony1)cyclohexanone (VIII) is obtained by catalytic hydrogenation of VII and also by oxidation of the diol X, itself prepared from hydrocampnospermonol (II ; R =H) by high pressure hydrogenation. The structure originally assigned to campnospermonol by Jones has been established by the synthesis of hydrocampnospermonyl methyl ether, from 3-methoxyphenylacetyl chloride and diheptadecyl cadmium. The odour of Tigaso oil is partly due to a small amount of a volatile ketone C7H12O which consists mainly of 3-methylcyclohexanone ; probably a mixture of (+)- and (-)-isomers with the (-)-isomer preponderant.

scholarly journals Inorganic Co-Crystal Formation and Thermal Disproportionation in a Dicyanometallate 'Superperovskite'

2019 ◽  
Author(s):  
Joshua A. Hill ◽  
Claire A. Murray ◽  
Chiu C. Tang ◽  
Peter M. M. Thygesen ◽  
Amber L. Thompson ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phase Transformation ◽  
Perovskite Structure ◽  
Structure Type ◽  
Crystal Formation ◽  
Thermally Driven ◽  
New Type ◽  
A Site ◽  
Inorganic Components

<div> <div> <div> <p>We report the synthesis, crystal structure, and thermally- driven phase transformation of the dicyanometallate super- perovskite co-crystal [NBu4]Mn[Au(CN)2]3·[NBu4]ClO4. This phase is understandable in terms of the conventional ABX3 perovskite structure type, but with the NBu+4 A-site cation displaced onto the perovskite cage face and 1-dimensional AX′ chains included within framework pores opened up by these displacements. On heating to 380K, the co-crystal disproportionates into its two inorganic components: a bcs-structured ABX3 phase and [NBu4 ]ClO4 . This system illustrates a new type of structural and phase complexity accessible to dicyanometallate perovskites. </p> </div> </div> </div>

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