Amid the background where the rhinoceros horn has been hoarded as a rare commodity,there is never a lack of counterfeits and adulterated products of rhinoceros horns on the market.This article aims to summarize the co...Amid the background where the rhinoceros horn has been hoarded as a rare commodity,there is never a lack of counterfeits and adulterated products of rhinoceros horns on the market.This article aims to summarize the commodity specifications and identification key points of the rhinoceros horn from its medicinal standard,to provide a reference for studying substitutes of rhinoceros horn.展开更多
S-boxes play a central role in the design of symmetric cipher schemes.For stream cipher appli-cations,an s-box should satisfy several criteria such as high nonlinearity,balanceness,correlation immunity,and so on.In th...S-boxes play a central role in the design of symmetric cipher schemes.For stream cipher appli-cations,an s-box should satisfy several criteria such as high nonlinearity,balanceness,correlation immunity,and so on.In this paper,by using disjoint linear codes,a class of s-boxes possessing high nonlinearity and 1st-order correlation immunity is given.It is shown that the constructed correlation immune S-boxes can possess currently best known nonlinearity,which is confirmed by the example 1st-order correlation immune(12,3)s-box with nonlinearity 2000.In addition,two other frameworks concerning the criteria of balanced and resiliency are obtained respectively.展开更多
[Objectives] To investigate the anti-tumor activity of Sedum bulbiferum Makino in vitro,and establish a HPLC method for determination of quercetin and kaempferol in S. bulbiferum. [Methods] The inhibitory activities o...[Objectives] To investigate the anti-tumor activity of Sedum bulbiferum Makino in vitro,and establish a HPLC method for determination of quercetin and kaempferol in S. bulbiferum. [Methods] The inhibitory activities of different extracts and total flavonoids of S. bulbiferum on proliferation of three kinds of cancer cells( Hep G2,EC109,SW480) were tested by MTT assay. HPLC method for determination of quercetin and kaempferol in S. bulbiferum was established. [Results]The growth and proliferation of the three kinds of cancer cells were all significantly inhibited by ethyl acetate fraction and total flavonoids isolated from S. bulbiferum. With each extraction concentration increasing,stronger anti-tumor activity was found. The linear ranges of quercetin and kaempferol were 0. 03-0. 36 μg( R = 0. 999 9) and0. 08-0. 96 μg( R = 0. 999 9),and the average recoveries were 98. 90%( RSD = 1. 15%) and 98. 27%( RSD = 1. 70%),respectively.[Conclusions]S. bulbiferum has significant anti-tumor activity in vitro. The HPLC method established was accurate,reproducible,and could be used for quality control of this crude drug.展开更多
Light mesons(σ,π^(0),π^(±))are investigated inμB-T-eB andμI-T-eB spaces using a two-flavor NJL model and used to determine chiral symmetry restoration and the pion superfluid phase transition.InμB-T-eB spac...Light mesons(σ,π^(0),π^(±))are investigated inμB-T-eB andμI-T-eB spaces using a two-flavor NJL model and used to determine chiral symmetry restoration and the pion superfluid phase transition.InμB-T-eB space,during the chiral symmetry restoration process,the mass of the pseudo-Goldstone modeπ^(0)increases,with sudden jumps.At the critical end point,theπ^(0)meson exhibits a sharp but continuous mass increase,with a sudden mass jump at the Mott transition.In the nearby first order chiral phase transition region,we observe twoπ^(0)mass jumps,one induced by the Mott transition and the other by the quark mass jump.The mass of the Higgs modeσfirst decreases and then increases with chiral symmetry restoration,only showing a jump at the first order chiral phase transition.We plot a chiral phase diagram in terms of the change in quark mass,the Mott transition of the pseudo-Goldstone modeπ^(0),and the minimum mass of the Higgs modeσ.Owing to explicit breaking of chiral symmetry in the physical case,the chiral restoration phase boundaries on theμB-T plane from the order parameter side and meson side are different.Theπ^(0)andσmass jumps will be helpful to the experimental search for the chiral phase diagram and critical end point.On theμI-T plane,the competition between the pion superfluid phase transition and chiral symmetry restoration under magnetic fields is studied in terms of the Goldstone modeπ^(+)and pseudo-Goldstone modeπ^(0).In contrast to the two mass jumps ofπ^(0)in the first order chiral phase transition region,theπ^(+)meson displays several mass jumps in the chiral crossover region.At the critical end point,π^(+)also has sharp but continuous mass change,with a mass jump at the Mott transition.The isospin symmetry is strict,and the pion superfluid phase transition is uniquely determined by the massless Goldstone modeπ^(+).The separation of chiral restoration and the pion superfluid phase boundaries is enhanced by the external magnetic field.展开更多
Truth discovery aims to resolve conflicts among multiple sources and find the truth. Conventional methods for truth discovery mainly investigate the mutual effect between the reliability of sources and the credibility...Truth discovery aims to resolve conflicts among multiple sources and find the truth. Conventional methods for truth discovery mainly investigate the mutual effect between the reliability of sources and the credibility of statements. These methods use real numbers, which have a lower representation capability than vectors to represent the reliability. In addition, neural networks have not been used for truth discovery. In this work, we propose memory-network-based models to address truth discovery. Our proposed models use feedforward and feedback memory networks to learn the representation of the credibility of statements. Specifically, our models adopt a memory mechanism to learn the reliability of sources for truth prediction. The proposed models use categorical and continuous data during model learning by automatically assigning different weights to the loss function on the basis of their own effects. Experimental results show that our proposed models outperform state-of-the-art methods for truth discovery.展开更多
Accurate battlefield collection plays a crucial role in the end of thewar. How to effectively improve the ability of accurate battlefield collection hasbecome a hot issue of research. However, the existing support for...Accurate battlefield collection plays a crucial role in the end of thewar. How to effectively improve the ability of accurate battlefield collection hasbecome a hot issue of research. However, the existing support force is limited. Tosolve the problem, an improved ant algorithm is applied to the path optimizationproblem of battlefield collection equipment. A model for solving the collectionpath optimization problem of battlefield collection vehicles was designed, andan example was used to simulate calculations. The final results show that thealgorithm is effective and practical,which improves the army’s ability to accuratelycollect equipment in the modern battlefield.展开更多
基金Supported by the Third Batch of TCM Backbone Personnel Training Project of Beijing Administration of Traditional Chinese Medicine。
文摘Amid the background where the rhinoceros horn has been hoarded as a rare commodity,there is never a lack of counterfeits and adulterated products of rhinoceros horns on the market.This article aims to summarize the commodity specifications and identification key points of the rhinoceros horn from its medicinal standard,to provide a reference for studying substitutes of rhinoceros horn.
基金supported by the National Natural Science Foundation of China(62272360,61972303)Natural Science Basic Research Plan in Shaanxi Province of China(2023-JC-YB-570)the Key Research and Development Program of Shaanxi Province(2021GY-040).
文摘S-boxes play a central role in the design of symmetric cipher schemes.For stream cipher appli-cations,an s-box should satisfy several criteria such as high nonlinearity,balanceness,correlation immunity,and so on.In this paper,by using disjoint linear codes,a class of s-boxes possessing high nonlinearity and 1st-order correlation immunity is given.It is shown that the constructed correlation immune S-boxes can possess currently best known nonlinearity,which is confirmed by the example 1st-order correlation immune(12,3)s-box with nonlinearity 2000.In addition,two other frameworks concerning the criteria of balanced and resiliency are obtained respectively.
文摘[Objectives] To investigate the anti-tumor activity of Sedum bulbiferum Makino in vitro,and establish a HPLC method for determination of quercetin and kaempferol in S. bulbiferum. [Methods] The inhibitory activities of different extracts and total flavonoids of S. bulbiferum on proliferation of three kinds of cancer cells( Hep G2,EC109,SW480) were tested by MTT assay. HPLC method for determination of quercetin and kaempferol in S. bulbiferum was established. [Results]The growth and proliferation of the three kinds of cancer cells were all significantly inhibited by ethyl acetate fraction and total flavonoids isolated from S. bulbiferum. With each extraction concentration increasing,stronger anti-tumor activity was found. The linear ranges of quercetin and kaempferol were 0. 03-0. 36 μg( R = 0. 999 9) and0. 08-0. 96 μg( R = 0. 999 9),and the average recoveries were 98. 90%( RSD = 1. 15%) and 98. 27%( RSD = 1. 70%),respectively.[Conclusions]S. bulbiferum has significant anti-tumor activity in vitro. The HPLC method established was accurate,reproducible,and could be used for quality control of this crude drug.
基金This work was supported in part by the National Natural Science Foundation of China （Grant Nos. 61373008, 11201359, 61562069）, the Natural Science Basic Research Plan in Shaanxi Province of China （Grant No. 2012JM8013）, the 111 Project （Grant No. B08038）, and the Science and Technology on Communication Security Laboratory （Grant No. 9140C110203140C11049）.
基金the National Natural Science Foundation of China(11775165)。
文摘Light mesons(σ,π^(0),π^(±))are investigated inμB-T-eB andμI-T-eB spaces using a two-flavor NJL model and used to determine chiral symmetry restoration and the pion superfluid phase transition.InμB-T-eB space,during the chiral symmetry restoration process,the mass of the pseudo-Goldstone modeπ^(0)increases,with sudden jumps.At the critical end point,theπ^(0)meson exhibits a sharp but continuous mass increase,with a sudden mass jump at the Mott transition.In the nearby first order chiral phase transition region,we observe twoπ^(0)mass jumps,one induced by the Mott transition and the other by the quark mass jump.The mass of the Higgs modeσfirst decreases and then increases with chiral symmetry restoration,only showing a jump at the first order chiral phase transition.We plot a chiral phase diagram in terms of the change in quark mass,the Mott transition of the pseudo-Goldstone modeπ^(0),and the minimum mass of the Higgs modeσ.Owing to explicit breaking of chiral symmetry in the physical case,the chiral restoration phase boundaries on theμB-T plane from the order parameter side and meson side are different.Theπ^(0)andσmass jumps will be helpful to the experimental search for the chiral phase diagram and critical end point.On theμI-T plane,the competition between the pion superfluid phase transition and chiral symmetry restoration under magnetic fields is studied in terms of the Goldstone modeπ^(+)and pseudo-Goldstone modeπ^(0).In contrast to the two mass jumps ofπ^(0)in the first order chiral phase transition region,theπ^(+)meson displays several mass jumps in the chiral crossover region.At the critical end point,π^(+)also has sharp but continuous mass change,with a mass jump at the Mott transition.The isospin symmetry is strict,and the pion superfluid phase transition is uniquely determined by the massless Goldstone modeπ^(+).The separation of chiral restoration and the pion superfluid phase boundaries is enhanced by the external magnetic field.
基金supported by the National HighTech Development(863)Program of China(No.2015AA015407)the National Natural Science Foundation of China(Nos.61632011 and 61370164)
文摘Truth discovery aims to resolve conflicts among multiple sources and find the truth. Conventional methods for truth discovery mainly investigate the mutual effect between the reliability of sources and the credibility of statements. These methods use real numbers, which have a lower representation capability than vectors to represent the reliability. In addition, neural networks have not been used for truth discovery. In this work, we propose memory-network-based models to address truth discovery. Our proposed models use feedforward and feedback memory networks to learn the representation of the credibility of statements. Specifically, our models adopt a memory mechanism to learn the reliability of sources for truth prediction. The proposed models use categorical and continuous data during model learning by automatically assigning different weights to the loss function on the basis of their own effects. Experimental results show that our proposed models outperform state-of-the-art methods for truth discovery.
文摘Accurate battlefield collection plays a crucial role in the end of thewar. How to effectively improve the ability of accurate battlefield collection hasbecome a hot issue of research. However, the existing support force is limited. Tosolve the problem, an improved ant algorithm is applied to the path optimizationproblem of battlefield collection equipment. A model for solving the collectionpath optimization problem of battlefield collection vehicles was designed, andan example was used to simulate calculations. The final results show that thealgorithm is effective and practical,which improves the army’s ability to accuratelycollect equipment in the modern battlefield.
