74 results about "General equation" patented technology

The invention refers to a kind of new diatomic alcohol ester, whose general equation is as the figure (1), its preparation method and its application to producing the catalyzer in the olefinic polymerization. The R1 and R2 chosen from the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20 don't matter, whether they are same or different. So do the R3 to R6 and R1 to R4 and they are one of the hydrogen, halogen, the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20. The R1 and R2 are selected from the hydrogen, halogen, the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20, but the R1, R2, R3,R4, R5 and R6 can't be hydrogen or halogen at the same time and can form cycles between them.

Adjustable focus eyeglasses with two lens units, each lens unit having two lens elements. The eyeglasses are focused by adjusting the position of at least one of the two lens elements relative to the other in a direction generally perpendicular to a viewing direction. The relative motion can be linear or pivotal about a pivot location outside the lenses. Applicant provides basic general equations defining the thickness profiles for the lenses and the solutions to these equations are: $t=A\left[{\mathrm{uv}}^2+2\left(\alpha v+1\right)\left(\alpha u-\sin \left(\alpha u\right)\right)/{\alpha }^3\right]+B\left[2\left(\alpha v+1\right)\left(1-\cos \left(\mathrm{au}\right)\right)/{\alpha }^2\right)\text{]}+C\left(v\sin \left(\mathrm{au}\right)/\alpha -\left(\alpha u-\sin \left(\alpha u\right)\right)/{\alpha }^2\right)\text{]}+\mathrm{Du}+E+F\left(v\right)+F1\left(u,v\right)u^4+F2\left(v\right)u^{3}v+F3\left(v\right)u^2{v}^2+F4\left(v\right){\mathrm{uv}}^3,$

where A for one of the lenses elements is −A for the other lens element in each lens unit and F(v), F1(u,v), F2(v), F3(v), F4(v) are any functions over the area of the lenses for which derivatives up to at least third order are continuous. At least one of F1(u,v), F2(v), F3(v), F4(v) is non-zero.

The invention refers to a kind of new diatomic alcohol ester, whose general equation is as the figure (1), its preparation method and its application to producing the catalyzer in the olefinic polymerization. The n should be no less than 3 and the R1 and R2 chosen from the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20 don't matter, whether they are same or different. So do the R3 to R6 and R1 to R4 and they are one of the hydrogen, halogen, the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20. The radicals connected with different alpha carbon atoms among the R3 to R6 and R1 to R4 can form cycles and at least two of the R3 to R6 and R1 to R4 are not hydrogen or halogen. When the two groups of R3 and R4, R5 and R6 have a radical of hydrogen or halogen respectively and the R1 to R4 are all hydrogen, the rest radicals can not be methyl at the same time.

The invention refers to a kind of new diatomic alcohol ester, whose general equation is as the figure (1), its preparation method and its application to producing the catalyzer in the olefinic polymerization. The n should be no less than 3 and the R1 and R2 chosen from the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20 don't matter, whether they are same or different. So do the R3 to R6 and R1 to R4 and they are one of the hydrogen, halogen, the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20, but the R1, R2, R3 to R6 can't be hydrogen or halogen at the same time. And we should choose one of the R1 to R6 and R1 to R2 with one or several halogen atoms as the substitute of the carbon, hydrogen or both.

The invention relates to bismuth titanate natrium-silver-barium series piezoelectric ceramics with ABO3 structure. The general equation of the compound is [Bi0.5(Na1-xAgx)0.5] _{1-yBayTiO3+aM alpha O beta (wt%), and in the equation, 0 alpha Obeta is one or plural doping oxide. The main constituent is 0-5 of Biw(Na1-x-y-zKxLiyAgz})1-wTiO3, M could be Na, K, Li, Ni, Zn, Cr, Co, Nb, Ta, Al, Cu, Fe, Ce, Pr, Nd, Sm, Gd, Dy, Er, Yb, In, Y, Sc, La, Ho, Lu, Sn, Sb, Mn, Ca, Ba, Sr, Mg, Si, Bi, Ag, etc. Alpha and beta mean the M element and atomicity corresponding to the relative oxide. The sintering temperature is 1100-1200 degree centigrade, keeping for 1-4 hours. The optimal value of the compound of d33 could be over 160pC/N, kp could be over 31%, dielectric loss could be below 0.03. And the technology is stable, and it would be made from traditional technology and raw material.

The invention relates to a potassium niobate natrium series leadless piezoelectric ceramics and the manufacturing method. It is expressed by the general equation: (1-u)[(1-n)(LitNa1-w-t1Kw-t2)(Nb1-g-fTagSbf)O3+nBiMeO3]+uM. The invention has stable manufacturing technology and has great usefulness.

The invention relates to a multielement potassium niobate natrium series leadless piezoelectric ceramics and the manufacturing method. It is expressed by the general equation: (1-u)[(1-z-n)(LitNa1-w-t1Kw-t2)(Nb1-g-fTagSbf)O3+ z(Bi0.5Na0.5xK0.5 (1-x))TiO3+nBaTiO3]+uM. The invention has stable manufacturing technology and has great usefulness.

A curve arc segmentation based ellipse detection method includes the steps: converting an image into a binary image, and obtaining a refined skeleton diagram according to the binary image on the basis of the refinement algorithm; tracking all outlines in the skeleton diagram, and tracking outline pixels in the refined image according to mutual connectivity among outline points to segment the outlines into segmental arcs from intersections until all outlines are tracked; determining sampling times of each segmental arc according to length proportion of the segmental arcs, and sampling each continuous outline segmental arc; substituting sampling points obtained by sampling for each time into the elliptical general equation to respectively work out a group of elliptical parameters; on the basis of statistics, recording frequency of occurrence of each group of parameters to find out the group of parameters highest in frequency of occurrence so as to finally obtain parameters of a target ellipse. The curve arc segmentation based ellipse detection method has the advantages that probability of invalid random sampling is greatly lowered by sampling each continuous outline segmental arc, and accordingly ellipse detection is accelerated.

The invention relates to bismuth titanate natrium-potassium-lithium-silver series leadless piezoelectric ceramics. The general equation of the compound is Bi0.5(Na1-x-y-zKxLiyAgz)0.5TiO3+aM alpha O beta(wt%), and in the equation, 0 alpha Obeta is one or plural doping oxide. The main constituent is 0-5 of Bi0.5(Na1-x-y-zKxLiyAgz)SUB>0.5TiO3, M could be Na, K, Li, Ni, Zn, Cr, Co, Nb, Ta, Al, Cu, Fe, Ce, Pr, Nd, Sm, Gd, Dy, Er, Yb, In, Y, Sc, La, Ho, Lu, Sn, Sb, Mn, Ca, Ba, Sr, Mg, Si, Bi, Ag, etc. Alpha and beta mean the M element and atomicity corresponding to the relative oxide. The optimal value of the compound of d33 could be over 210pC/N, kp could be over 40%. And the technology is stable, and it would be made from traditional technology and raw material.

The invention discloses a method for positioning circular traffic signs in a natural scene. The method comprises the steps of A, transforming an original image into an HSV color model, and determining a candidate region which possibly contains the circular traffic signs; B, performing binarization processing and median filtering; C, determining candidate pixel points located at the edge of the candidate region by using a Susan operator; D, respectively calculating the gradient direction of each edge point by using a Sobel operator; E, searching a set of all edge point groups meeting pole and polar line properties of an ellipse; F, solving all elliptic equations by using a general equation of the ellipse, and adding corresponding ellipses to an ellipse candidate set; and G, removing ellipses which do not actually exist from the ellipse candidate set, and regarding the finally reserved ellipses to be positions at which the finally positioned circular traffic signs are located. Sub-regions corresponding to circular traffic signs in an image can be accurately positioned in a complicated natural scene according to the method disclosed by the invention, and the positioning efficiency and he positioning precision are greatly improved.

Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.

The present invention discloses an iridium complex containing a (pentaphenyl)phenyl ligand, having the following general equation:

in which G is primary ligand, R′ and R″ are auxiliary ligands. On the other hand, the present invention discloses a compound with a 9-[(pentaphenyl)phenyl]carbazole structure and its polymeric derivative.

The invention discloses an overdrive system control allocation method based on a geometrically intuitively built reachable set. Through selecting parameters, then the parameters are eliminated to obtain a plane general equation, the dimension of a control efficiency matrix is reduced, and thus the amount of calculation is greatly reduced in constructing the reachable set. The method is intuitiveand easy to understand, accordingly the necessary and sufficient conditions for vertices, facets and edges of the reachable set can be given, and in a complex control system such as a multi-degree-of-freedom manipulator, the amount of calculation of constructing the reachable set can be reduced to an acceptable range by using the method.

The invention relates to producing method of the viburnitol phosphate ester ammouium salt, which is the compound expressed by the general equation. The R1 is elected from the amine having the atomicity of 3-18; the R2 and R3 are elected form -H-PO (OH) 2, or PO (OH)'2R, R' is also elected from the amine having the atomicity of 3-18. The producing method of the compound includes the composing the viburnitor, the viburnitol phosphate ester, and the viburnitol phosphate ester ammouium salt. The method has some merits of the simplicity of operation,the cheap cost and the low environmental pollution.

The invention provides a synthetic method of indanone. The general equation of reaction is defined in the specification. Reaction substrates of the method are different substituted 1,5-eneyne. A catalyst is Ph3PAuCl, Ph3PAuNTf2, HAuCl4, NaAuCl4, Ph3PAuOTf, Ph3PAuSbF6 or IPrAuCl. A medium required by the reaction is methanol, toluene, dichloromethane, 1,2-dichloroethane, chloroform or tetrahydrofuran. The reaction is implemented by microwave heating which promotes the reaction, and also can be implemented by heating and stirring. According to the reaction, cyclization and oxidation can be cascaded in the presence of a gold catalyst to generate a series of indanone-containing compounds. The method provided by the invention has characteristics of simple operation, wide range of application, few by-products, high yield and green reaction.

Provided is a room temperature and humidity thickening thermo-conductive silicone grease composition with high shape retention characteristics and good workability despite a low viscosity in an initial phase. Essential components of the room temperature and humidity thickening thermo-conductive silicone grease composition of the present invention are: (A) organopolysiloxane with a viscosity of between 0.1 Pa·s and 1,000 Pa·s at 25° C. with both ends being blocked by a hydroxyl group; (B) organopolysiloxane represented by general equation (1)

(R¹ is independently a substituted or non-substituted monovalent hydrocarbon group, R² is independently an alkyl group, alkoxy alkyl group, alkenyl group, or acyl group, n is an integer between 2 and 100, and a is an integer between 1 and 3); (C) a silane compound which contains at least three hydrolysable groups bonded to a silicon atom in one molecule and/or a (partial) hydrolyzate or a (partial) hydrolysis condensate thereof; (D) a thickening catalyst; (E) a thermally conductive filler with a thermal conductivity of at least 10 W/m·° C.; and (F) silica fine powder.

The invention provides a method for synthesizing 2,3-dihydropyrido[2,3-d]pyrimidine-4-(3H)-one heterocyclic compounds and the general equation of reaction is shown in the figure, wherein R belongs to the substituent group and can be F, Cl, Br, I, NO2, NO, CN, alkyl, alkoxy, amino or other groups, the number and position of the substituent group are not limited; and R1 and R2 represent H, alkyl, aryl or heteroaryl, or R1, R2 and the connected carbon atoms form C3-7 cycloalkyl. The reaction catalyst belongs to Lewis acids such as anhydrous zinc chloride and anhydrous aluminium choride, or protonic acids such as hydrochloric acid and sulfuric acid, or alkaline catalysts such as sodium hydroxide, sodium methoxide, sodium ethoxide and potassium tert-butoxide. The reaction can be promoted through conventional heating or microwave treatment; and recrystallization or column chromatography is adopted for purification. The method has common raw material, simple process and mild reaction conditions; and the reaction has wide application range and can be adopted to synthesize various 2,3-dihydropyrido[2,3-d]pyrimidine-4-(3H)-one heterocyclic compounds by using different substrates.

This invention is to provide a general equation for the round-flat twisted-pair cable arrangement to achieve maximum or any degree of crosstalk-noise cancellation in a short distance with the uniform twist of the individual twisted-pair and the uniform offset of the local twist shift angle for neighbor twisted pairs.

The invention is an unsaturated oxime-aether compound with sterilization and insecticidal activity, whose general equation is as figure (I). The R1and R2 is selected from the H, halogen, CN or NO2 respectively; the double bond of carbon-carbon is E-isomer and the methoxy acrylic ester on the benzene ring is E-isomer.

The invention provides a phase change memory material and a preparation method thereof. The phase change memory material is the compound of silicon-bismuth-tellurium, the general equation is SiBiyTe100-(x+y), wherein x is more than 10 but less than 90, and y is more than 0 and less than 50. Compared with the prior art, the phase change memory material has the advantages of being simple in structure, small in grains, high in heating efficiency, low in power dissipation, fast in device storage speed, high in crystallization temperature, good in heat stability, strong in data retention and the like.

The present invention relates to a method for measuring the liquid-metal surface level (13) and the slag surface level (14) in the crucible (1) of a metallurgical shaft furnace comprising the following steps: measuring, at one or more points on the external wall (2) of the crucible, the following variables: the circumferential strain in said external wall (2) by means of a number of strain-gauge sensors (6) fixed to the armour (4) of the external wall (2) of the crucible; and the temperature of said external wall (2) by means of one or more temperature sensors (7) fixed to the armour (4) of the external wall (2) of the crucible; introducing said variables measured at a number of points on the external wall of the crucible into the general equation governing circumferential strain, the solution of which is analytical, and which contains two unknowns, the liquid metal level and the overall liquid metal/slag level, considering set parameters; and solving said equation and obtaining an analytical solution giving the liquid metal surface level (13) and the slag surface level (14) in the crucible (1).

It has been reported in the literature that raceway measurement made during the decreasing gas velocity is relevant to operating blast furnaces. However, no raceway correlation is available either for decreasing or increasing gas velocity which is developed based on a systematic study and none of the available correlation take care of frictional properties of the material. Therefore, a systematic experimental study has been carried out on raceway hysteresis. Based on experimental data and using dimensional analysis, two raceway correlations, one each for increasing and decreasing gas velocity, have been developed. Also, in the present study the effect of stresses has been considered along with pressure and bed weight terms mathematically. These three forces are expressed in mathematical form and solved analytically for one-dimensional case, using a force balance approach. Based on the force balance approach a general equation has been obtained to predict the size of the cavity in each case, i.e., for increasing and decreasing velocity. Results of these correlations and model have been compared with the data obtained from literature on cold and hot models and plant data along with some experimental data. An excellent agreement has been found between the predicted (using correlations and model) and experimental values. The proposed theory is applicable to any packed bed systems. It has been shown that hysteresis mechanism in the packed beds can be described reasonably taking into consideration the reversal of sign in frictional forces in increasing and decreasing velocity cases.