Least squares reverse-time migration （LSRTM） is an inversion method that removes artificial images and preserves the amplitude of reflectivity sections. LSRTM has been used in reservoir exploration and processing of...Least squares reverse-time migration （LSRTM） is an inversion method that removes artificial images and preserves the amplitude of reflectivity sections. LSRTM has been used in reservoir exploration and processing of 4D seismic data. LSRTM is, however, a computationally costly and memory-intensive method. In this study, LSRTM in the pseudodepth domain was combined with the conjugate gradient method to reduce the computational cost while maintaining precision. The velocity field in the depth domain was transformed to the velocity field in the pseudodepth domain; thus, the total number of vertical sampling points was reduced and oversampling was avoided. Synthetic and field data were used to validate the proposed method. LSRTM in the pseudodepth domain in conjunction with the conjugate gradient method shows potential in treating field data.展开更多
Effect of salinity on survival,feeding behavior and growth of juvenile swimming crab P ortunus trituberculatus was investigated under 5 salinity levels of 5,10,20,30 and 40. The results show that the crab juveniles fe...Effect of salinity on survival,feeding behavior and growth of juvenile swimming crab P ortunus trituberculatus was investigated under 5 salinity levels of 5,10,20,30 and 40. The results show that the crab juveniles fed 2 or 3 times at the salinity 20 and 30,each lasted for about 25 minutes,for a total feeding time of 73.2±22.65 minutes per day. At these salinities,there were significantly higher in the frequency of feeding and in total feeding time than those at lower salinities of 5 and 10. All crab juveniles moulted when reared at a salinity of 20 during the 5 days duration of the experiment,which is significantly higher than those at other salinities. All juveniles survived at salinity 20,and the survivorship was not significantly different from that at 30,but was signif icantly higher than those at other salinities. The crab juveniles reared at a salinity of 20 had the highest value of food ration of 0.190 8±0.011 3 g/g BW,average body weight gain of 0.796±0.128 g,gain rate of 87%–96%,and food conversion ratio of 1.20±0.09. There was no significant difference in the values found between 20 and 30 but these values were significantly lower than that at the other salinities( P> 0.05). Highest activities of digestive enzymes(Amylase,Protease,Lipase) and lowest activities of protective enzymes(SOD,PO,CAT) were also obtained on crab juveniles reared at salinity of 20.展开更多
On today＇s clothes market and international fashion stage, the dress adornment elements of ethnic minorities have always deeply impressed design masters, received great attention and, are constantly surprising fashio...On today＇s clothes market and international fashion stage, the dress adornment elements of ethnic minorities have always deeply impressed design masters, received great attention and, are constantly surprising fashion designers. China is a country with multiple ethnic minorities, which have extremely rich ethnic minority dresses and adornment elements. On studying the major dress adornment elements of the Daur, a typical ethnic minority in northern China, we have discovered their strong ethnic features. The major dress adornment elements of the Daur were with the purpose to explore and continue traditions. Combining the modern faskion design with the delicate decorative art that the Daur people sew various laces and embroideries on their dresses, was to discover and use the essence of Chinese ethnic dress and adornments, and demonstrate the talent of ethnic minorities in clothes design. Given what have been founded, combined with the application of modern design methods, the adornment elements of ethnic dresses can represent their ethnic characteristics as well as reflecting the sense of the modern age.展开更多
The series of Harry Potter and the series of The Hunger Games are the most frequently mentioned children＇s and youngster＇s stories after The Adventures of Tom Sawyer. Both of them are children＇s and youngster＇s fa...The series of Harry Potter and the series of The Hunger Games are the most frequently mentioned children＇s and youngster＇s stories after The Adventures of Tom Sawyer. Both of them are children＇s and youngster＇s favorite stories. All of them are about children＇s adventures. But because of the time and history, they represent different themes of the time. This research paper aims at analyzing the Game Spirits in the first two. The suspense and surprise, fantastic adventures and time interweaving are shown in Harry Potter and the Prisoner of Azkaban. And the unbelievable background, the lucky number, image of gamble, and the game against humanity are the Game Spirits in The Hunger Games. The purpose of this thesis is to help people better understand Harry Potter and The Hunger Games in the aspect of Game Spirit. Harry Potter is the full of fantastic adventure while The Hunger Game is a story full of survival.展开更多
Objective： The aim of the study was to evaluate the efficacies of initial gemcitabine plus cisplatin （GP） and paclitaxel plus cisplatin （TP） 1st-line chemotherapies for advanced non-small cell lung cancer （NSCLC...Objective： The aim of the study was to evaluate the efficacies of initial gemcitabine plus cisplatin （GP） and paclitaxel plus cisplatin （TP） 1st-line chemotherapies for advanced non-small cell lung cancer （NSCLC） and observe their side effects. Methods： Eighty-one cases were randomly divided into two groups： GP group and TP group. In GP group, adminis- tered gemcitabine （GEM） 1000 mg/m2 on days 1 and 8; i.v. cisplatin （DDP） 30 mg/m2 from days 2 to 4 on a 28-day cycle. In TP group, administered paclitaxel （PTX） 175 mg/m2 on day 1, i.v. DDP 30 mg/m2 from days 2 to 4 on a 28-day cycle. Results： GP group had an overall response rate （ORR; CR＋PR） of 45.0% （18/40）. TP had an overall response rate of 43.2% （16/37）. Short-term ORR had no significant difference between two groups （x2 = 0.527, P = 0.957）. GP had median survival time of 11 months and 37.7% of one-year survival rate, while TP showed 11 months of median survival time and 31.7% of one-year survival rate. Survival had no significant difference between two groups （x2 = 0.140, P = 0.708）. However, main side effects varied. Thrombocytopenia of GP group was significantly more than that of TP group, while peripheral neuritis, nausea/vomiting and myalgia of TP group were significantly more than those of GP group. Conclusion： Both GP and TP regimens had no significant difference in short-term treatment effect and survival rate for initial treatment of advanced NSCLC. However, side effects related to GP regimen treatment were slighter. Therefore, it was considered as the preferred initial first-line treatment for NSCLC.展开更多
基金This research is sponsored by The National Natural Science Fund （No. 41574098）, Shandong Provincial Natural Science Foundation （No. ZR201807080087）, the Fundamental Research Funds for the Central Universities （No. 18CX02059A）, the National Natural Science Fund （No. 41504100）, and the national oil and gas major project （No. 2016ZX05006-002）.
文摘Least squares reverse-time migration （LSRTM） is an inversion method that removes artificial images and preserves the amplitude of reflectivity sections. LSRTM has been used in reservoir exploration and processing of 4D seismic data. LSRTM is, however, a computationally costly and memory-intensive method. In this study, LSRTM in the pseudodepth domain was combined with the conjugate gradient method to reduce the computational cost while maintaining precision. The velocity field in the depth domain was transformed to the velocity field in the pseudodepth domain; thus, the total number of vertical sampling points was reduced and oversampling was avoided. Synthetic and field data were used to validate the proposed method. LSRTM in the pseudodepth domain in conjunction with the conjugate gradient method shows potential in treating field data.
基金Supported by the Science and Technology Innovation Team of Marine Crab Industry in Ningbo City(No.2011B81003)the National Natural Science Foundation of China(No.41276123)+2 种基金the National Spark Plan Program of China(No.2012GA701048)the Key Project of Ministry of Education,Science and Technology(No.212070)the K C Wong Magana Fund in Ningbo University
文摘Effect of salinity on survival,feeding behavior and growth of juvenile swimming crab P ortunus trituberculatus was investigated under 5 salinity levels of 5,10,20,30 and 40. The results show that the crab juveniles fed 2 or 3 times at the salinity 20 and 30,each lasted for about 25 minutes,for a total feeding time of 73.2±22.65 minutes per day. At these salinities,there were significantly higher in the frequency of feeding and in total feeding time than those at lower salinities of 5 and 10. All crab juveniles moulted when reared at a salinity of 20 during the 5 days duration of the experiment,which is significantly higher than those at other salinities. All juveniles survived at salinity 20,and the survivorship was not significantly different from that at 30,but was signif icantly higher than those at other salinities. The crab juveniles reared at a salinity of 20 had the highest value of food ration of 0.190 8±0.011 3 g/g BW,average body weight gain of 0.796±0.128 g,gain rate of 87%–96%,and food conversion ratio of 1.20±0.09. There was no significant difference in the values found between 20 and 30 but these values were significantly lower than that at the other salinities( P> 0.05). Highest activities of digestive enzymes(Amylase,Protease,Lipase) and lowest activities of protective enzymes(SOD,PO,CAT) were also obtained on crab juveniles reared at salinity of 20.
文摘On today＇s clothes market and international fashion stage, the dress adornment elements of ethnic minorities have always deeply impressed design masters, received great attention and, are constantly surprising fashion designers. China is a country with multiple ethnic minorities, which have extremely rich ethnic minority dresses and adornment elements. On studying the major dress adornment elements of the Daur, a typical ethnic minority in northern China, we have discovered their strong ethnic features. The major dress adornment elements of the Daur were with the purpose to explore and continue traditions. Combining the modern faskion design with the delicate decorative art that the Daur people sew various laces and embroideries on their dresses, was to discover and use the essence of Chinese ethnic dress and adornments, and demonstrate the talent of ethnic minorities in clothes design. Given what have been founded, combined with the application of modern design methods, the adornment elements of ethnic dresses can represent their ethnic characteristics as well as reflecting the sense of the modern age.
文摘The series of Harry Potter and the series of The Hunger Games are the most frequently mentioned children＇s and youngster＇s stories after The Adventures of Tom Sawyer. Both of them are children＇s and youngster＇s favorite stories. All of them are about children＇s adventures. But because of the time and history, they represent different themes of the time. This research paper aims at analyzing the Game Spirits in the first two. The suspense and surprise, fantastic adventures and time interweaving are shown in Harry Potter and the Prisoner of Azkaban. And the unbelievable background, the lucky number, image of gamble, and the game against humanity are the Game Spirits in The Hunger Games. The purpose of this thesis is to help people better understand Harry Potter and The Hunger Games in the aspect of Game Spirit. Harry Potter is the full of fantastic adventure while The Hunger Game is a story full of survival.
基金Supported by a grant of Science and Technology Department of Hebei Province (No. 072761711)
文摘Objective： The aim of the study was to evaluate the efficacies of initial gemcitabine plus cisplatin （GP） and paclitaxel plus cisplatin （TP） 1st-line chemotherapies for advanced non-small cell lung cancer （NSCLC） and observe their side effects. Methods： Eighty-one cases were randomly divided into two groups： GP group and TP group. In GP group, adminis- tered gemcitabine （GEM） 1000 mg/m2 on days 1 and 8; i.v. cisplatin （DDP） 30 mg/m2 from days 2 to 4 on a 28-day cycle. In TP group, administered paclitaxel （PTX） 175 mg/m2 on day 1, i.v. DDP 30 mg/m2 from days 2 to 4 on a 28-day cycle. Results： GP group had an overall response rate （ORR; CR＋PR） of 45.0% （18/40）. TP had an overall response rate of 43.2% （16/37）. Short-term ORR had no significant difference between two groups （x2 = 0.527, P = 0.957）. GP had median survival time of 11 months and 37.7% of one-year survival rate, while TP showed 11 months of median survival time and 31.7% of one-year survival rate. Survival had no significant difference between two groups （x2 = 0.140, P = 0.708）. However, main side effects varied. Thrombocytopenia of GP group was significantly more than that of TP group, while peripheral neuritis, nausea/vomiting and myalgia of TP group were significantly more than those of GP group. Conclusion： Both GP and TP regimens had no significant difference in short-term treatment effect and survival rate for initial treatment of advanced NSCLC. However, side effects related to GP regimen treatment were slighter. Therefore, it was considered as the preferred initial first-line treatment for NSCLC.
