Resonant accelerometer is designed,which includes two double-ended tuning forks,a proof mass,four-leverage system amplifying inertial force,and drive/sense combs.Each tuning fork is electrostatically actuated and sens...Resonant accelerometer is designed,which includes two double-ended tuning forks,a proof mass,four-leverage system amplifying inertial force,and drive/sense combs.Each tuning fork is electrostatically actuated and sensed at resonance using comb electrodes.The device is fabricated using MEMS bulk-silicon technology,whose sensitive degree is 27 3Hz/g,and the resolution is 167 8μg.展开更多
In the area of knowledge economy, the new generation of cmployccs is becoming the main force in the talent market. And the new female generation has more distinctive features as a special group. How to effectively man...In the area of knowledge economy, the new generation of cmployccs is becoming the main force in the talent market. And the new female generation has more distinctive features as a special group. How to effectively manage the new generation employees and have them work weU has been the urgent problem that the manager should be solved. Based on previous studies, the thesis discusses the related factors that would affect the new female generation employee＇ s wok satisfaction with related research method. So that to make contributions to the permanent performance of enterprise.展开更多
The establishment and improvement of the social system is an important indicator of a nation political cultures and social development, and is the basic guarantee of social harmony. In recent years, our urban social s...The establishment and improvement of the social system is an important indicator of a nation political cultures and social development, and is the basic guarantee of social harmony. In recent years, our urban social security system is maturing, but rural social security system is almost a blank, affecting the economic and political development, and the progress of the farmers, and restricting the process of service government construction.Service government is a new model of government, which orients the purpose of fundamental interests for the whole people. The rural and the farmers are the focus of our country, and the improvement of rural social security system is the key point for solving the problems. Therefore, it is really important to deal with the relationship between the improvement of rural social security system and the service government construction.In my essay, based on the analysis of the theory of rural social security system and the service government, I will put forward the ideas of the improvement of rural social security system and the service government construction.展开更多
The classical Schwarz-Pick lemma for holomorphic mappings is generalized to planar harmonic mappings of the unit disk D completely. (I) For any 0 < r < 1 and 0 ρ < 1, the author constructs a closed convex do...The classical Schwarz-Pick lemma for holomorphic mappings is generalized to planar harmonic mappings of the unit disk D completely. (I) For any 0 < r < 1 and 0 ρ < 1, the author constructs a closed convex domain Er,ρ such that F((z,r)) eiαEr,ρ = {eiαz : z ∈ Er,ρ} holds for every z ∈ D, w = ρeiα and harmonic mapping F with F(D)D and F(z) = w, where △(z,r) is the pseudo-disk of center z and pseudo-radius r; conversely, for every z ∈ D, w = ρeiα and w ∈ eiαEr,ρ, there exists a harmonic mapping F such that F(D) D, F(z) = w and F(z ) = w for some z ∈ △(z,r). (II) The author establishes a Finsler metric Hz(u) on the unit disk D such that HF(z)(eiθFz(z) + e-iθFz(z)) ≤1 /(1- |z|2)holds for any z ∈ D, 0 θ 2π and harmonic mapping F with F(D)D; furthermore, this result is precise and the equality may be attained for any values of z, θ, F(z) and arg(eiθFz(z) + e-iθFz(z)).展开更多
Unlike the ancient Greek, Roman and German states, ancient Chinese states took a path of harmonious construction which did not involve abolition of the clan system. It was on the basis of the existing clan organizatio...Unlike the ancient Greek, Roman and German states, ancient Chinese states took a path of harmonious construction which did not involve abolition of the clan system. It was on the basis of the existing clan organization that the first shoots of the state sprouted, and the state and the clans underwent a long coexistence which allowed the early state to develop and be perfected. The unique social structure of ancient China-the long existence and development of the clan system--was the underlying social foundation for harmonious construction. The early Chinese states were much concerned with the feelings, opinions about right and wrong, advantages and calamities of the clans and tribes. This concern and social practice was the foundation stone for harmonious construction, as well as the benchmark for success for the leaders of the time. Traces of the idea of harmonious construction are apparent up to the full development of the early state in ancient China.展开更多
Quantum discord, as a kind of measurement of quantum correlation, has received much attention since it was introduced. This paper focuses on studying quantum discord in three-spin XXZ chain with three-spin interaction...Quantum discord, as a kind of measurement of quantum correlation, has received much attention since it was introduced. This paper focuses on studying quantum discord in three-spin XXZ chain with three-spin interaction. The effects of all kinds of pa- rameters on quantum discord in the ferromagnetic region J=-I are studied. The three-spin interaction may increase the value of quantum discord between two spins, while the anisotropy may decrease the value. In addition, the regrowth of quantum discord with temperature is found in the model. For zero temperature, quantum phase transition is existent.展开更多
We investigate theoretically the quantum discord dynamics of a two-qubit composite system subject to a common finite-temperature reservoir by solving the Born-Markovian master equation analytically.The ultimate quantu...We investigate theoretically the quantum discord dynamics of a two-qubit composite system subject to a common finite-temperature reservoir by solving the Born-Markovian master equation analytically.The ultimate quantum discord,however,exhibits a relatively high stable value associated with the reservoir temperature despite the permanent disappearance of entanglement simultaneously.Further analysis shows that the unique characteristic depends strongly on the off-diagonal non-zero elements of the density matrix.Our result manifests the greater robustness of quantum discord compared with entanglement,which may be helpful in quantum-information technologies.展开更多
We investigate the geometric picture of the level surfaces of quantum entanglement and geometric measure of quantum discord(GMQD) of a class of X-states, respectively. This pictorial approach provides us a direct unde...We investigate the geometric picture of the level surfaces of quantum entanglement and geometric measure of quantum discord(GMQD) of a class of X-states, respectively. This pictorial approach provides us a direct understanding of the structure of entanglement and GMQD. The dynamic evolution of GMQD under two typical kinds of quantum decoherence channels is also investigated. It is shown that there exists a class of initial states for which the GMQD is not destroyed by decoherence in a finite time interval. Furthermore, we establish a factorization law between the initial and final GMQD, which allows us to infer the evolution of entanglement under the influences of the environment.展开更多
Quantum correlations among parts of a composite quantum system are a fundamental resource for several applications in quantum information. In general, quantum discord can measure quantum correlations. In that way,we i...Quantum correlations among parts of a composite quantum system are a fundamental resource for several applications in quantum information. In general, quantum discord can measure quantum correlations. In that way,we investigate the quantum discord of the two-qubit system constructed from the Yang–Baxter Equation. The density matrix of this system is generated through the unitary Yang–Baxter matrix R. The analytical expression and numerical result of quantum discord and geometric measure of quantum discord are obtained for the Yang–Baxter system. These results show that quantum discord and geometric measure of quantum discord are only connect with the parameter θ,which is the important spectral parameter in Yang–Baxter equation.展开更多
文摘Resonant accelerometer is designed,which includes two double-ended tuning forks,a proof mass,four-leverage system amplifying inertial force,and drive/sense combs.Each tuning fork is electrostatically actuated and sensed at resonance using comb electrodes.The device is fabricated using MEMS bulk-silicon technology,whose sensitive degree is 27 3Hz/g,and the resolution is 167 8μg.
文摘In the area of knowledge economy, the new generation of cmployccs is becoming the main force in the talent market. And the new female generation has more distinctive features as a special group. How to effectively manage the new generation employees and have them work weU has been the urgent problem that the manager should be solved. Based on previous studies, the thesis discusses the related factors that would affect the new female generation employee＇ s wok satisfaction with related research method. So that to make contributions to the permanent performance of enterprise.
文摘The establishment and improvement of the social system is an important indicator of a nation political cultures and social development, and is the basic guarantee of social harmony. In recent years, our urban social security system is maturing, but rural social security system is almost a blank, affecting the economic and political development, and the progress of the farmers, and restricting the process of service government construction.Service government is a new model of government, which orients the purpose of fundamental interests for the whole people. The rural and the farmers are the focus of our country, and the improvement of rural social security system is the key point for solving the problems. Therefore, it is really important to deal with the relationship between the improvement of rural social security system and the service government construction.In my essay, based on the analysis of the theory of rural social security system and the service government, I will put forward the ideas of the improvement of rural social security system and the service government construction.
基金supported by National Natural Science Foundation of China (Grant No.10671093)
文摘The classical Schwarz-Pick lemma for holomorphic mappings is generalized to planar harmonic mappings of the unit disk D completely. (I) For any 0 < r < 1 and 0 ρ < 1, the author constructs a closed convex domain Er,ρ such that F((z,r)) eiαEr,ρ = {eiαz : z ∈ Er,ρ} holds for every z ∈ D, w = ρeiα and harmonic mapping F with F(D)D and F(z) = w, where △(z,r) is the pseudo-disk of center z and pseudo-radius r; conversely, for every z ∈ D, w = ρeiα and w ∈ eiαEr,ρ, there exists a harmonic mapping F such that F(D) D, F(z) = w and F(z ) = w for some z ∈ △(z,r). (II) The author establishes a Finsler metric Hz(u) on the unit disk D such that HF(z)(eiθFz(z) + e-iθFz(z)) ≤1 /(1- |z|2)holds for any z ∈ D, 0 θ 2π and harmonic mapping F with F(D)D; furthermore, this result is precise and the equality may be attained for any values of z, θ, F(z) and arg(eiθFz(z) + e-iθFz(z)).
文摘Unlike the ancient Greek, Roman and German states, ancient Chinese states took a path of harmonious construction which did not involve abolition of the clan system. It was on the basis of the existing clan organization that the first shoots of the state sprouted, and the state and the clans underwent a long coexistence which allowed the early state to develop and be perfected. The unique social structure of ancient China-the long existence and development of the clan system--was the underlying social foundation for harmonious construction. The early Chinese states were much concerned with the feelings, opinions about right and wrong, advantages and calamities of the clans and tribes. This concern and social practice was the foundation stone for harmonious construction, as well as the benchmark for success for the leaders of the time. Traces of the idea of harmonious construction are apparent up to the full development of the early state in ancient China.
基金supported by the ‘211’ Innovative Talents Cultivation Project of Inner Mongolia Universitythe National Natural Science Foundation of China (Grant No. 10847005)the Inner Mongolia Talent Development Foundation and Chinese Universities Scientific Fund (Grant No.BUPT2011RC0706)
文摘Quantum discord, as a kind of measurement of quantum correlation, has received much attention since it was introduced. This paper focuses on studying quantum discord in three-spin XXZ chain with three-spin interaction. The effects of all kinds of pa- rameters on quantum discord in the ferromagnetic region J=-I are studied. The three-spin interaction may increase the value of quantum discord between two spins, while the anisotropy may decrease the value. In addition, the regrowth of quantum discord with temperature is found in the model. For zero temperature, quantum phase transition is existent.
基金supported by the National Basic Research Program of China (Grant No.2012CB921900)the National Natural Science Foundation of China (Grant No.10574166)the Guangdong Natural Science Foundation (Grant No.8151027501000062)
文摘We investigate theoretically the quantum discord dynamics of a two-qubit composite system subject to a common finite-temperature reservoir by solving the Born-Markovian master equation analytically.The ultimate quantum discord,however,exhibits a relatively high stable value associated with the reservoir temperature despite the permanent disappearance of entanglement simultaneously.Further analysis shows that the unique characteristic depends strongly on the off-diagonal non-zero elements of the density matrix.Our result manifests the greater robustness of quantum discord compared with entanglement,which may be helpful in quantum-information technologies.
基金supported by the National Natural Science Foundation of China (Grant Nos.10905024, 11005029, 11104057 and 11204061)the Key Project of Chinese Ministry of Education (Grant No. 211080)+2 种基金the Key Program of the Education Department of Anhui Province (Grant Nos. KJ2011A243, KJ2012A244 and KJ2012A245)the Anhui Provincial Natural Science Foundation (Grant Nos. 11040606M16 and 10040606Q51)the Doctoral Startup Foundation of Hefei Normal University (Grant No. 2011rcjj03)
文摘We investigate the geometric picture of the level surfaces of quantum entanglement and geometric measure of quantum discord(GMQD) of a class of X-states, respectively. This pictorial approach provides us a direct understanding of the structure of entanglement and GMQD. The dynamic evolution of GMQD under two typical kinds of quantum decoherence channels is also investigated. It is shown that there exists a class of initial states for which the GMQD is not destroyed by decoherence in a finite time interval. Furthermore, we establish a factorization law between the initial and final GMQD, which allows us to infer the evolution of entanglement under the influences of the environment.
基金Supported by the National Natural Science Foundation of China under Grant Nos. 11247260 and 11305020 and the CUST Foundation for Young Scholars under Grant No. XQNJJ-2011-03
文摘Quantum correlations among parts of a composite quantum system are a fundamental resource for several applications in quantum information. In general, quantum discord can measure quantum correlations. In that way,we investigate the quantum discord of the two-qubit system constructed from the Yang–Baxter Equation. The density matrix of this system is generated through the unitary Yang–Baxter matrix R. The analytical expression and numerical result of quantum discord and geometric measure of quantum discord are obtained for the Yang–Baxter system. These results show that quantum discord and geometric measure of quantum discord are only connect with the parameter θ,which is the important spectral parameter in Yang–Baxter equation.
