Feature detection in chemical sensors images falls under the general topic of mathematical morphology, where the goal is to detect “image objects” e.g. peaks or spots in an image. Here, we propose a novel method for...Feature detection in chemical sensors images falls under the general topic of mathematical morphology, where the goal is to detect “image objects” e.g. peaks or spots in an image. Here, we propose a novel method for object detection that can be generalized for a k-dimensional object obtained from an analogous higher-dimensional technology source. Our method is based on the smoothing decomposition, Data = Smooth + Rough, where the “rough” (i.e. residual) object from a k-dimensional cross-shaped smoother provides information for object detection. We demonstrate properties of this procedure with chemical sensor applications from various biological fields, including genetic and proteomic data analysis.展开更多
With the explosive growth of social media, manufacturers and marketers are increasingly using public opinions in social media for their business decision making. This article aims to understand the customer preference...With the explosive growth of social media, manufacturers and marketers are increasingly using public opinions in social media for their business decision making. This article aims to understand the customer preference of different market segments from online word of mouth. Using the real data collected from the leading online community of China auto and the ordered Logit model, we find that from the viewpoint of car types, the price is the most important factor for the customer satisfaction. However, from the viewpoint of price range, the price is no more the most important factor for the customer satisfaction. From both viewpoints, the results are similar that different car attributes have different weights on satisfaction. Our findings will make the car manufacturers and marketers come away with a more detailed understanding of the mindset of Chinese consumer groups, and keep a competitive advantage in the fierce China auto market.展开更多
Objective：To study the effects of Erlong Zuoci Pill（耳聋左慈丸,ELZCP）and its disassembled prescriptions on gentamicin（GM）-induced ototoxicity model in vitro.Methods：After the spiral organ of cochleae of newborn ...Objective：To study the effects of Erlong Zuoci Pill（耳聋左慈丸,ELZCP）and its disassembled prescriptions on gentamicin（GM）-induced ototoxicity model in vitro.Methods：After the spiral organ of cochleae of newborn mice（postnatal days：2-3）cultured for 24 h,GM alone or combined with water extracting-alcohol precipitating solution of ELZCP or with its disassembled prescriptions was added.Hair cells were observed under a fluorescence microscope after TRITC-phalloidin staining,and the cochlear hair cell loss rate was calculated by counting the whole cochlear hair cells and analyzed by whole cochlear hair cells analyzing software.Results： GM induced cochlear outer hair cells（OHCs）and inner hair cells（IHCs）injuries in a dose-dependent manner, and they were significantly different as compared with those in the normal control group（P〈0.05,P〈0.01）. ELZCP at the concentration of 0.003-3 mg/mL could decrease the hair cells loss induced by the 0.3 mmol/L GM （P〈0.05,P〈0.01）,the effects was in a dose-dependent manner,and the concentration of 0.3 mg/mL showed the optimal protective effect.For the ELZCP disassembled prescriptions,Liuwei-Dihuang could decrease OHC loss rate than that in the 0.3 mmol/L GM model group（P〈0.05）,but the OHC loss rate was still higher than that in the ELZCP group（P〈0.01）,which indicated that the protective effect of hair cells by Liuwei-Dihuang was not better than that of ELZCP.Poria decreased OHC loss rate from 72.1%±3.7%to 58.8%±8.2%（P〈0.05）. Conclusions：ELZCP could play a role in antagonizing the injury of cochlear hair cells induced by GM ototoxicity, and its disassembled prescriptions,Liuwei-Dihuang was the main component to protect the cochlear hair cells from GM-induced ototoxicity,and Magnetitum combined with Radix Bupleurui could strengthen the action of the whole prescription; Poria could reduce GM-induced OHC loss.展开更多
文摘Feature detection in chemical sensors images falls under the general topic of mathematical morphology, where the goal is to detect “image objects” e.g. peaks or spots in an image. Here, we propose a novel method for object detection that can be generalized for a k-dimensional object obtained from an analogous higher-dimensional technology source. Our method is based on the smoothing decomposition, Data = Smooth + Rough, where the “rough” (i.e. residual) object from a k-dimensional cross-shaped smoother provides information for object detection. We demonstrate properties of this procedure with chemical sensor applications from various biological fields, including genetic and proteomic data analysis.
文摘With the explosive growth of social media, manufacturers and marketers are increasingly using public opinions in social media for their business decision making. This article aims to understand the customer preference of different market segments from online word of mouth. Using the real data collected from the leading online community of China auto and the ordered Logit model, we find that from the viewpoint of car types, the price is the most important factor for the customer satisfaction. However, from the viewpoint of price range, the price is no more the most important factor for the customer satisfaction. From both viewpoints, the results are similar that different car attributes have different weights on satisfaction. Our findings will make the car manufacturers and marketers come away with a more detailed understanding of the mindset of Chinese consumer groups, and keep a competitive advantage in the fierce China auto market.
基金Supported by Shanghai Science and Technology Commission (No.04ZR14130)Leading Academic Discipline Project of Shanghai Municipal Education Commission(No.J50301)
文摘Objective：To study the effects of Erlong Zuoci Pill（耳聋左慈丸,ELZCP）and its disassembled prescriptions on gentamicin（GM）-induced ototoxicity model in vitro.Methods：After the spiral organ of cochleae of newborn mice（postnatal days：2-3）cultured for 24 h,GM alone or combined with water extracting-alcohol precipitating solution of ELZCP or with its disassembled prescriptions was added.Hair cells were observed under a fluorescence microscope after TRITC-phalloidin staining,and the cochlear hair cell loss rate was calculated by counting the whole cochlear hair cells and analyzed by whole cochlear hair cells analyzing software.Results： GM induced cochlear outer hair cells（OHCs）and inner hair cells（IHCs）injuries in a dose-dependent manner, and they were significantly different as compared with those in the normal control group（P〈0.05,P〈0.01）. ELZCP at the concentration of 0.003-3 mg/mL could decrease the hair cells loss induced by the 0.3 mmol/L GM （P〈0.05,P〈0.01）,the effects was in a dose-dependent manner,and the concentration of 0.3 mg/mL showed the optimal protective effect.For the ELZCP disassembled prescriptions,Liuwei-Dihuang could decrease OHC loss rate than that in the 0.3 mmol/L GM model group（P〈0.05）,but the OHC loss rate was still higher than that in the ELZCP group（P〈0.01）,which indicated that the protective effect of hair cells by Liuwei-Dihuang was not better than that of ELZCP.Poria decreased OHC loss rate from 72.1%±3.7%to 58.8%±8.2%（P〈0.05）. Conclusions：ELZCP could play a role in antagonizing the injury of cochlear hair cells induced by GM ototoxicity, and its disassembled prescriptions,Liuwei-Dihuang was the main component to protect the cochlear hair cells from GM-induced ototoxicity,and Magnetitum combined with Radix Bupleurui could strengthen the action of the whole prescription; Poria could reduce GM-induced OHC loss.
