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<正> As methyl dihydrojasmonate has been known to be a popular perfume recently, its synthetic method has been intensive......
Oxonitridosilicate phosphors with compositions of Y 1-x Ce x SiO 2 N (x=0-0.1) were synthesized by a new synthetic route......
9,10-Anthraquinone forms a series of molecular complexes with NO and NO 2,which are stable in solid state or in organic ......
Since February 1990, during the treatment of HIV/AIDS patients in Tanzania, seronegative conversion (SNC) occurred~1 in ......
The linear trienes were obtained in high yields by copper-mediated cycloaddition of 2,5-bis(trimethylsilyl)zirconacyclop......
SYNTHESES AND CHARACTERIZATION OF POLY(IMINOPHENOL)S DERIVED FROM 4-BROMOBENZALDEHYDE:THERMAL,OPTICA
Schiff base monomers[2-(4-bromobenzylideneamino)phenol and 2-(4-bromobenzylideneamino)-5-methylphenol] were synthesized ......
Two-Stage Hydrogenation Modification of C_9 Petroleum Resin over NiWS/γ-Al_2O_3 and PdRu/γ-Al_2O_3 C
Hydrogenation modification is one of the most important ways to produce high-quality petroleum resin.The colorless C9 pe......
A facile route for the synthesis of dimethyl adipate (DAP) from cyclopentanone and dimethyl carbonate (DMC) in the prese......
A new oxidovanadium(Ⅳ) Schiff base complex containing asymmetric tetradentate ONN0O0Schiff base liga
After synthesis of an asymmetric tetradentate ONN0O0 Schiff base ligand(H2L) followed by reaction of the synthesized H2 ......
In the process of accurate interpretation of multi-wave seismic data,we wanted to solve the problem of multi-wave inform......
Synthesis of pyrazinyl compounds from glycerol and 1,2-propanediamine over Cu-TiO_2 catalysts suppor
Cu-TiO_2 catalysts supported onγ-Al_2O_3 are prepared and used in glycerol cyclization with 1,2-propanediamine to produ......
Benzo-1,2,3,4-tetrazine-1,3-dioxide was synthesized from 2-bromonitrobenzene,which is converted to 2-bromo-1-(tert-butyl......
Role of NO in Hg~0 oxidation over a commercial selective catalytic reduction catalyst V_2O_5–WO_3/Ti
Experiments were conducted in a fixed-bed reactor that contained a commercial catalyst,V_2O_5–WO_3/TiO_2,to investigate......
Visible light catalyzed aromatization of 1,3,5-triaryl-2-pyrazolines by platinum(Ⅱ) polypyridyl comp
With visible light(λ=450 nm) irradiation of a catalytic amount of platinum(Ⅱ) terpyridyl complex, 1,3,5-triaryl-2-pyra......
Synthesis and biological evaluation of new pyrrolopyrazinone compounds as potential antitumor agents
A series of pyrrolo[1,2-a]pyrazinone compounds(5a-9f) were synthesized,and their cytotoxic activity against SKOV-3,A549.......
Various supported Pt-Pb bimetallic catalysts were prepared and applied for the catalytic conversion of nitrobenzene to p......
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Direct conversion of methane to C2 hydrocarbons via cold plasma reaction with catalysts has been studied at room temper......
The optimum conditions were studied for the formation of magnetite by the air oxidation of Fe(OH)2 suspensions. The cati......
N-Phenylbenzylamine has been converted into a variety of α-substituted derivatives inone-pot sequences,using carbon di......
Studies on sulfinatodehalogenation III.The sulfinatodeiodination of primary perfluoroalkyl iodides a
Using P.T.C.or cosolvents,both perfluoroalkyl iodides such as Cl(CF_2)_nI(n=2,4,6,1a-1c),H(CF_2)_8I(1d),CF_3(CF_2)_nI(n......
The reactions of tetrafluoroethylene oligomers V.The reactions of perfluoro-3,4-dimethy1-4-ethylhexe
The reactions of perfluoro-3,4-dimethyl-4-ethylhexene-(2)(1)with s-nucleophiles suchas benzylthiol,allylthiol,phenylthi......
Low valent tungsten reaction——Composition studies and reactions with sulfoxides and pyridine-N-oxide
Sulfoxides are converted to the corresponding sulfides in good yields by low valent tungstenagents derived from WCl_6-B......
Thiazolidine Is readily converted into a range of 2-substituted derivatives in a one-potlithia-tion procedure,using car......
Based on segmentation-recombination principle, a specific optical device is designed to homogenize a high-power CO2 lase......
The expansion of agriculture is posited as one of the main dynamics of forest landscape change globally, and the robust ......
The traditional eye sensitivity function based on photopic vision is not applicable in the mesopic vision state.The meso......
We experimentally demonstrate a fast random bit generator (RBG) based on bandwidth-enhanced chaotic laser from an optica......
A new strategy for the synthesis of unsymmetrical phosphotri-esters was reported: an alcohol was converted to unsymmetr......
Through modification of the delta values of the molecular connectivity indexes, and connecting the quantum chemistry wi......
Oxygen-free conversion of methane to ethylene was investigated in a two-stageplasma-followed-by-catalyst(PFC)reactor.In......
We describe an all-optical wavelength conversion scheme for 1310 nm to 1550 nm based on nonlinear polarization rotation ......
In this paper,we propose a novel method of multi-beam laser heterodyne measurement for micro-impulse.The measurement of ......
In this letter, (R)-1,1-diphenyl-2-mercapto-3-methyl-1-butanol was synthesized from L-valine and two synthetic routes ha......
Synthesis, Structure of a Symmetrically Substituted Stilbene with Strong Two-photon Absorption and U
Efficient Ti-catalyzed reductive coupling methodology was first employed to synthesize the symmetrical bis-donor stilben......
1-(4-hydroxy-3-methoxyphenyl)-2-(4-formyl-2-methoxyphenoxy)-propane-1,3-diol, A 8-O-4’ neolignan, has been stereoselect......
Generation of broadly tunable picosecond mid-infrared laser and sensitive detection of a mid-infrare
Picosecond optical parametric generation and amplification in the near-infrared region within 1.361-1.656 μm and the mi......
TiO2 film was prepared on soda-lime glass by sol-gel method. The water contact angle (θ) of the fresh TiO2 film is 0°......
Digital waveform data recorded by the vertical component short period stations at the American networks of SCSN, NCSN an......
A weak infrared(IR) image amplifier with more than 60-dB optical gain and frequency up-conversion is developed from a pi......
According to the multi-performance degradation of the bipolar transistor in the accelerating storage process, an extrapo......
We propose a return-to-zero on-off keying(RZ-OOK) to non-return-to-zero(NRZ) OOK conversion scheme based on a single cus......
During the dynamics process of KrF laser pumped by electronic beams,the energy has been converted from the high-current ......
Fast magnetic field annihilation in a collisionless plasma is induced by using TEM(1,0) laser pulse. The magnetic quadru......
The profile error evaluation of complex curves and surfaces expressed in parametric form is considered. The linear error......
Heat handling has been a significant problem of the high power fiber laser systems as the output power increases rapidly......
Investment in deepwater oil and gas exploration projects:a multi-factor analysis with a real options
Deepwater oil and gas projects embody high risks from geology and engineering aspects, which exert substantial influence......
Screening is an important process in mineral industry. In this paper, a study has been made to simulate the screening pr......
YUNNAN COPPER COORDINATEDCORPORATION formed recently inKunming with the capacity of 10,000TPY copper matte.Thus more th......
The torsional vibration of a rigid plate resting on saturated stratum overlaying bedrock has been analysed for the first......
