An image distortion correction method is proposed, which uses the straight line features. Many parallel lines of different direction from different images were extracted, and then were used to optimize the distortion ...An image distortion correction method is proposed, which uses the straight line features. Many parallel lines of different direction from different images were extracted, and then were used to optimize the distortion parameters by nonlinear least square. The thought of step by step was added when the optimization method working. 3D world coordination is not need to know, and the method is easy to implement. The experiment result shows its high accuracy.展开更多
On the basis of strict mathematical description about Failure_Free Period Life Test (FFPLT), the statistical properties of the tests and optimal confidence limit of the parameter are discussed in detail and correspond...On the basis of strict mathematical description about Failure_Free Period Life Test (FFPLT), the statistical properties of the tests and optimal confidence limit of the parameter are discussed in detail and corresponding calculating formulae are found out.展开更多
By direct calculation of rotation matrices of SO(3),we show how certain specific sequence of eight consecutiverotations of digital angles can yield a tilting of a facet mirror.We also design a detailed program specifi...By direct calculation of rotation matrices of SO(3),we show how certain specific sequence of eight consecutiverotations of digital angles can yield a tilting of a facet mirror.We also design a detailed program specifically to tiltan array of mirrors from planar orientation to the required focusing orientation.We describe how to use the 8-step torealize the focusing of the mirror array.We have found,in our designed program,an important feature of row-sharingduring the rotations for the columns and similarly the column-sharing during the rotations for the row.This feature cansave a lot of operating time during the actual realization of the mechanical movements.展开更多
This study examines long work hours and work-life balance in relation to wage level, workaholism, and consumerism in both Korea and Japan. Findings of this study can be summarized as follows. First, the hypothesis tha...This study examines long work hours and work-life balance in relation to wage level, workaholism, and consumerism in both Korea and Japan. Findings of this study can be summarized as follows. First, the hypothesis that the wages and working hours have positive but differential effects depending on wage level categories are supported. Second, effects of cultural factors, such as workaholism and consumerism, on long work hours, however, are not significant in both countries. Third, for Korean manual workers, the probability of working long hours is high, but the level of time scarcity is low; but the effect of union membership on long work hours is not significant in both Korea and Japan. Fourth, the hypothesis that negative effects of long work hours and time scarcity on satisfaction with work-life balance are supported. These findings suggest that an increase in wage for non-regular workers and a minimum wage are required to reduce working hours. In addition, they also suggest that reducing working hours, overtime work in particular, and wage gap are crucial to raising the level of satisfaction with work-life balance in both Korea and Japan.展开更多
Based on the field-theoretical bosonization we consider the spinful system consisting of two disconnected Luttinger liquids, which are coupled at time t = 0 through chiral density-density interactions. We show the wel...Based on the field-theoretical bosonization we consider the spinful system consisting of two disconnected Luttinger liquids, which are coupled at time t = 0 through chiral density-density interactions. We show the wellknown spin-charge separation in this 1D system by means of bosonization and Bogoliubov transformation. To evaluate analytically the one-particle equal-time correlation functions, Cazalilla＇s methods are extended to spin-charge sectors. It is found that in long time limit the behavior of correlations does not coincide with that of equilibrium equal-time correlations of two coupled spinful Luttinger liquids. In order to compare with experimental results, the improved exponent that governs the power-law behavior of equal-time correlations of the non-equilibrium system is obtained at the end of this work.展开更多
Bit-plane decomposition makes images obtain a number of layers. According to the amount of data information, images are encrypted, and the paper proposes image encryption method with Chaotic Mapping based on multi-lay...Bit-plane decomposition makes images obtain a number of layers. According to the amount of data information, images are encrypted, and the paper proposes image encryption method with Chaotic Mapping based on multi-layer parameter disturbance. The advantage of multi-layer parameter disturbance is that it not only scrambles pixel location of images, but also changes pixel values of images. Bit-plane decomposition can increase the space of key. And using chaotic sequence generated by chaotic system with different complexities to encrypt layers with different information content can save operation time. The simulation experiments show that using chaotic mapping in image encryption method based on multi-layer parameter disturbance can cover plaintext effectively and safely, which makes it achieve ideal encryption effect.展开更多
A standard in-beam y-spectroscopy experiment for ^188Pt is performed via the ^176yb（^18O, 6n） reaction at beam energies of 88 and 95 MeV, and the level scheme for ^188Pt is established. Prolate and oblate shape coex...A standard in-beam y-spectroscopy experiment for ^188Pt is performed via the ^176yb（^18O, 6n） reaction at beam energies of 88 and 95 MeV, and the level scheme for ^188Pt is established. Prolate and oblate shape coexistence has been demonstrated to occur in ^188Pt by applying the projected shell model. The rotation Mignment of i13/2 neutrons drives the yrast sequence changing suddenly from prolate to oblate shape at angular momentum 1Oh, indicating likely a new type of shape phase transition along the yrast fine in ^188Pt.展开更多
Purpose： To observe the therapeutic effect of interventional embolization and haemorrhage control in multiple trauma patients with a major abdominal or pelvic injury. Methods： Data of 160 multiple trauma patients wi...Purpose： To observe the therapeutic effect of interventional embolization and haemorrhage control in multiple trauma patients with a major abdominal or pelvic injury. Methods： Data of 160 multiple trauma patients with a major abdominal or pelvic injury were retro- spectively analyzed. They were admitted into the Department of Emergency of the First Affiliated Hospital of Zunyi Medical College from October 2013 to April 2016. Eighty-seven patients who received emergent intervention for embolization and haemorrhage control were set as group A, including 72 males and 15 females, with an average age of （39.32 ±14.0） years. Patients underwent emergent intervention for embolization and hemostasis. The other 73 patients who received traditional surgeries were set as group B, including 62 males and 11 females, with an average age of （38.48 ± 13.12） years. The time from admission to emergency intervention, the time of interventional embolization, transfusion during hospitalization, length of stay and prognosis were observed. The whole treatment and prognosis were compared between group A and group B. Results： In group A, the average time from admission to intervention exploration was （132.05 ± 86.80） min, the average operation time was （149 ± 49.69） min, the average hospitalization time was （18.37±4.71 ） days, the average amount of RBC transfusion during hospitalization was （Z2 ± 4.33） units, and the mortality was 4.60% （4 patients died）. The corresponding data in group B were respectively （138.95± 82.49） min, （183 ± 52.39） min, （22.72 ± 6.63） days, （12.23 ± 5.43） units, and 9.59% （7 cases died）. There was no statistical difference in the time from admission to operation between the two groups （p 〉 0.05）, but there was statistical difference in operation time, RBC transfusion, hospitalization time, prognosis, and mortality between the two groups （all p 〈 0.05）. Conclusion： The emergent intervention for embolization and haemorrhage control of multiple trauma patients with a major abdominal or pelvic injury and visceral organ haemorrhage has the advantages of less trauma, shorter operation time, shorter hospital stay, less blood transfusion in comparison to the traditional emergency surgeries.展开更多
The main purpose of this paper is to investigate the exact solutions of plane symmetric spacetime in the context of f(R,T)gravity[Phys.Rev.D 84(2011)024020],where f(R,T)is an arbitrary function of Ricci scalar R and t...The main purpose of this paper is to investigate the exact solutions of plane symmetric spacetime in the context of f(R,T)gravity[Phys.Rev.D 84(2011)024020],where f(R,T)is an arbitrary function of Ricci scalar R and trace of the energy momentum tensor T.We explore the exact solutions for two different classes of f(R,T)models.The first class f(R,T)=R+2f(T)yields a solution which corresponds to Taub's metric while the second class f(R,T)=f_1(R)+f_2(T)provides two additional solutions which include the well known anti-deSitter spacetime.The energy densities and corresponding functions for f(R,T)models are evaluated in each case.展开更多
文摘An image distortion correction method is proposed, which uses the straight line features. Many parallel lines of different direction from different images were extracted, and then were used to optimize the distortion parameters by nonlinear least square. The thought of step by step was added when the optimization method working. 3D world coordination is not need to know, and the method is easy to implement. The experiment result shows its high accuracy.
文摘On the basis of strict mathematical description about Failure_Free Period Life Test (FFPLT), the statistical properties of the tests and optimal confidence limit of the parameter are discussed in detail and corresponding calculating formulae are found out.
文摘By direct calculation of rotation matrices of SO(3),we show how certain specific sequence of eight consecutiverotations of digital angles can yield a tilting of a facet mirror.We also design a detailed program specifically to tiltan array of mirrors from planar orientation to the required focusing orientation.We describe how to use the 8-step torealize the focusing of the mirror array.We have found,in our designed program,an important feature of row-sharingduring the rotations for the columns and similarly the column-sharing during the rotations for the row.This feature cansave a lot of operating time during the actual realization of the mechanical movements.
文摘This study examines long work hours and work-life balance in relation to wage level, workaholism, and consumerism in both Korea and Japan. Findings of this study can be summarized as follows. First, the hypothesis that the wages and working hours have positive but differential effects depending on wage level categories are supported. Second, effects of cultural factors, such as workaholism and consumerism, on long work hours, however, are not significant in both countries. Third, for Korean manual workers, the probability of working long hours is high, but the level of time scarcity is low; but the effect of union membership on long work hours is not significant in both Korea and Japan. Fourth, the hypothesis that negative effects of long work hours and time scarcity on satisfaction with work-life balance are supported. These findings suggest that an increase in wage for non-regular workers and a minimum wage are required to reduce working hours. In addition, they also suggest that reducing working hours, overtime work in particular, and wage gap are crucial to raising the level of satisfaction with work-life balance in both Korea and Japan.
文摘Based on the field-theoretical bosonization we consider the spinful system consisting of two disconnected Luttinger liquids, which are coupled at time t = 0 through chiral density-density interactions. We show the wellknown spin-charge separation in this 1D system by means of bosonization and Bogoliubov transformation. To evaluate analytically the one-particle equal-time correlation functions, Cazalilla＇s methods are extended to spin-charge sectors. It is found that in long time limit the behavior of correlations does not coincide with that of equilibrium equal-time correlations of two coupled spinful Luttinger liquids. In order to compare with experimental results, the improved exponent that governs the power-law behavior of equal-time correlations of the non-equilibrium system is obtained at the end of this work.
文摘Bit-plane decomposition makes images obtain a number of layers. According to the amount of data information, images are encrypted, and the paper proposes image encryption method with Chaotic Mapping based on multi-layer parameter disturbance. The advantage of multi-layer parameter disturbance is that it not only scrambles pixel location of images, but also changes pixel values of images. Bit-plane decomposition can increase the space of key. And using chaotic sequence generated by chaotic system with different complexities to encrypt layers with different information content can save operation time. The simulation experiments show that using chaotic mapping in image encryption method based on multi-layer parameter disturbance can cover plaintext effectively and safely, which makes it achieve ideal encryption effect.
基金Supported by the Major State Basic Research Programme of China 2007CB815001, the National Natural Science Foundation of China under Grant No 10775158, and the Chinese Academy of Sciences.
文摘A standard in-beam y-spectroscopy experiment for ^188Pt is performed via the ^176yb（^18O, 6n） reaction at beam energies of 88 and 95 MeV, and the level scheme for ^188Pt is established. Prolate and oblate shape coexistence has been demonstrated to occur in ^188Pt by applying the projected shell model. The rotation Mignment of i13/2 neutrons drives the yrast sequence changing suddenly from prolate to oblate shape at angular momentum 1Oh, indicating likely a new type of shape phase transition along the yrast fine in ^188Pt.
文摘Purpose： To observe the therapeutic effect of interventional embolization and haemorrhage control in multiple trauma patients with a major abdominal or pelvic injury. Methods： Data of 160 multiple trauma patients with a major abdominal or pelvic injury were retro- spectively analyzed. They were admitted into the Department of Emergency of the First Affiliated Hospital of Zunyi Medical College from October 2013 to April 2016. Eighty-seven patients who received emergent intervention for embolization and haemorrhage control were set as group A, including 72 males and 15 females, with an average age of （39.32 ±14.0） years. Patients underwent emergent intervention for embolization and hemostasis. The other 73 patients who received traditional surgeries were set as group B, including 62 males and 11 females, with an average age of （38.48 ± 13.12） years. The time from admission to emergency intervention, the time of interventional embolization, transfusion during hospitalization, length of stay and prognosis were observed. The whole treatment and prognosis were compared between group A and group B. Results： In group A, the average time from admission to intervention exploration was （132.05 ± 86.80） min, the average operation time was （149 ± 49.69） min, the average hospitalization time was （18.37±4.71 ） days, the average amount of RBC transfusion during hospitalization was （Z2 ± 4.33） units, and the mortality was 4.60% （4 patients died）. The corresponding data in group B were respectively （138.95± 82.49） min, （183 ± 52.39） min, （22.72 ± 6.63） days, （12.23 ± 5.43） units, and 9.59% （7 cases died）. There was no statistical difference in the time from admission to operation between the two groups （p 〉 0.05）, but there was statistical difference in operation time, RBC transfusion, hospitalization time, prognosis, and mortality between the two groups （all p 〈 0.05）. Conclusion： The emergent intervention for embolization and haemorrhage control of multiple trauma patients with a major abdominal or pelvic injury and visceral organ haemorrhage has the advantages of less trauma, shorter operation time, shorter hospital stay, less blood transfusion in comparison to the traditional emergency surgeries.
基金National University of Computer and Emerging Sciences(NUCES) for funding support through research reward programme
文摘The main purpose of this paper is to investigate the exact solutions of plane symmetric spacetime in the context of f(R,T)gravity[Phys.Rev.D 84(2011)024020],where f(R,T)is an arbitrary function of Ricci scalar R and trace of the energy momentum tensor T.We explore the exact solutions for two different classes of f(R,T)models.The first class f(R,T)=R+2f(T)yields a solution which corresponds to Taub's metric while the second class f(R,T)=f_1(R)+f_2(T)provides two additional solutions which include the well known anti-deSitter spacetime.The energy densities and corresponding functions for f(R,T)models are evaluated in each case.
