摘要:
Disclosed is a PTZ video visibility detection method based on luminance characteristic, which includes acquiring a road condition video image by utilizing a PTZ video camera, extracting the region of interest ROI of the road surface to obtain high constancy of selected pixels; acquiring precise road surface region by utilizing region-growing algorism based on Nagao filtering to ensure the illuminance constancy of the selected pixels in world coordinates; in the road surface region, extracting the contrast curve which reflects the luminance variation of the road surface, and searching the feature points of the luminance curve to calculate the human eye distinguishable and maximum far pixels in the image with an extinction coefficient; calculating the maximum visibility distance in combination with camera calibration to determine the visibility value. The present invention can take full advantage of existing PTZ camera to video the road condition and acquire the image without the need of providing any artificial marker. Monitoring can be in real time and has a low monitoring cost, and the monitoring requirement of large area road condition can be satisfied. Monitoring is stable and can not be disturbed by environment. It is a visibility detecting method with the advantages of simpleness, easy realization, high precision and excellent use effect.
摘要:
A method of forming a semiconductor device is provided that includes forming a first metal semiconductor alloy on a semiconductor containing surface, forming a dielectric layer over the first metal semiconductor alloy, forming an opening in the dielectric layer to provide an exposed surface the first metal semiconductor alloy, and forming a second metal semiconductor alloy on the exposed surface of the first metal semiconductor alloy. In another embodiment, the method includes forming a gate structure on a channel region of a semiconductor substrate, forming a dielectric layer over at least a source region and a drain region, forming an opening in the dielectric layer to provide an exposed surface the semiconductor substrate, forming a first metal semiconductor alloy on the exposed surface of the semiconductor substrate, and forming a second metal semiconductor alloy on the first metal semiconductor alloy.
摘要:
A process for producing hydroxyalkanoate copolymers, which comprises: (i) pre-treating a sucrose-containing feedstock in an acidic solution; (ii) feeding the pre-treated feedstock into a bioreactor containing polyhydroxyalkanoate producing microbial cells; (iii) cultivating the polyhydroxyalkanoate producing microbial cells to form a cell mass containing the hydroxyalkanoate copolymers; (iv) recoverying the hydroxyalkanoate copolymers from the cell mass. The pre-treating step has the main function of hydrolyzing sucrose into glucose and fructose, which in turn are converted into 4-ketovaleric acid to give a mixture of mono-saccharides and organic precursors for microbial synthesis of hydroxyalkanoate copolymers, and particularly of PHBVV ter-polymers. Complex and expensive purification processes of the substrates obtained from the pre-treating step are not needed. The solutions can be directly used as the feeding solutions for microbial PHA biosynthesis.
摘要翻译:一种生产羟基链烷酸酯共聚物的方法,其包括:(i)在酸性溶液中预处理含蔗糖的原料; (ii)将预处理的原料进料到含有聚羟基链烷酸酯生产微生物细胞的生物反应器中; (iii)培养产生聚羟基链烷酸酯的微生物细胞以形成含有羟基链烷酸酯共聚物的细胞团; (iv)从细胞团中回收羟基链烷酸酯共聚物。 预处理步骤具有将蔗糖水解成葡萄糖和果糖的主要功能,其又转化为4-酮戊酸,得到单糖和有机前体的混合物,用于微生物合成羟基链烷酸酯共聚物,特别是PHBVV ter 聚合物。 不需要从预处理步骤获得的底物的复杂且昂贵的纯化方法。 该溶液可直接用作微生物PHA生物合成的饲料溶液。
摘要:
This invention relates to the cleaning of flue gas released from various combustion processes, particularly a surface deposition NH3—SCR honeycomb catalyst and its preparation method. The catalyst is composed of framework material, TiO2, V2O5 and WO3, wherein the framework material is composed of clay, coal ash, mineral waste residue or their mixture. The mass fractions for framework material, TiO2, V2O5, and WO3 are 60 wt. % to 80 wt. %, 13 wt. % to 33 wt. %, 1 wt. % to 5 wt. %, and 0.1 wt. % to 2 wt. %, respectively. The nano V2O5—WO3—TiO2 particles were deposited on the surface of particle pore or honeycomb, and the performance of the catalyst could be greatly improved
摘要:
In a replacement gate scheme, a continuous material layer is deposited on a bottom surface and a sidewall surface in a gate cavity. A vertical portion of the continuous material layer is removed to form a gate component of which a vertical portion does not extend to a top of the gate cavity. The gate component can be employed as a gate dielectric or a work function metal portion to form a gate structure that enhances performance of a replacement gate field effect transistor.
摘要:
Novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have now been identified in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant polypeptides, probes for detecting it, isolated mutant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The invention also provides methods for determining the presence of these mutant polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides.
摘要:
The present invention provides a method of forming asymmetric field-effect-transistors. The method includes forming at least a first and a second gate-mask stack on top of a semiconductor substrate, wherein the first and second gate-mask stacks include at least, respectively, a first and a second gate conductor of a first and a second transistor and have, respectively, a top surface, a first side, and a second side with the second side being opposite to the first side; performing a first halo implantation from the first side of the first and second gate-mask stacks at a first angle while applying the first gate-mask stack in preventing the first halo implantation from reaching a first source/drain region of the second transistor, wherein the first angle is equal to or larger than a predetermined value; and performing a second halo implantation from the second side of the first and second gate-mask stacks at a second angle, thereby creating halo implant in a second source/drain region of the second transistor, wherein the first and second angles are measured against a normal to the substrate.
摘要:
In accordance with the invention, novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have now been identified in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ALK kinase polypeptides, probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The disclosed identification of this new fusion protein enables new methods for determining the presence of these mutant ALK kinase polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides, which are also provided by the invention.
摘要:
In accordance with the invention, novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have now been identified in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ALK kinase polypeptides, probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The disclosed identification of this new fusion protein enables new methods for determining the presence of these mutant ALK kinase polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides, which are also provided by the invention.
摘要:
In accordance with the invention, novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have now been identified in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ALK kinase polypeptides, probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The disclosed identification of this new fusion protein enables new methods for determining the presence of these mutant ALK kinase polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides, which are also provided by the invention.