In this paper, it analyses the unequipollence of exergy, and basing on this, it also gives the conceptionof the spring-coefficient of exergy, the consuming rate of the primary exergy and the objective exergy. Basing o...In this paper, it analyses the unequipollence of exergy, and basing on this, it also gives the conceptionof the spring-coefficient of exergy, the consuming rate of the primary exergy and the objective exergy. Basing on thespring coefficient of exergy, it analyses the effect of the exergy efficiency of single unit on the exergy of the totalsystem, educes the calculating method of the consuming rate of the primary exergy, and calculates a real example. Theresults show that the consuming rate of the primary exergy of single unit can exhibit the characteristics of the systembest, and analyses the potential power of saving energy of the system scientifically. It also discusses the factors thataffect the exergy-coefficiency of the cooling coils.展开更多
Ore dumps are heterogeneous bodies with anisotropic seepage characteristics because of the ore segregation. In an indoor experiment,a dump was constructed with three strata,where the horizontal and vertical seepage ex...Ore dumps are heterogeneous bodies with anisotropic seepage characteristics because of the ore segregation. In an indoor experiment,a dump was constructed with three strata,where the horizontal and vertical seepage experi-ments were carried out. Horizontals flow are regarded as phreatic plan flows without penetration. Its seepage law sati-fies the Dupuit equation. With parallel lay seepage model,the equivalent seepage coefficient in the horizontal flow was obtained and was equivalent to the weighted mean of the seepage coefficient of each stratum. An unsaturated flow ap-peared in the vertical experiment,with a hydraulic gradient of 1. The vertical flow was equivalent to the seepage model that moved in vertical bedding; its equivalent seepage coefficient depended on the stratum with the minimum seepage coefficient. That the experiment showed clear anisotropy in a heterogeneous body was obvious with an anisotropic co-efficient between 63 and 155,which is 25 to 100 times larger than that of a homogeneous body.展开更多
In this letter, we shall show how to construct constrained Bell-type inequality for a generaltwo-party system, and violating this inequality is equivalent to being inseparable. For 2 (×) 2 system, the maximum vio...In this letter, we shall show how to construct constrained Bell-type inequality for a generaltwo-party system, and violating this inequality is equivalent to being inseparable. For 2 (×) 2 system, the maximum violation is 3,while for 3 (×) 3 system, the largest violation is 11/3.展开更多
The suboptimal reliable guaranteed cost control （RGCC） with multi-criterion constraints is investigated for a class of uncertain continuous-time systems with sensor faults. A fauk model in sensors, which considers o...The suboptimal reliable guaranteed cost control （RGCC） with multi-criterion constraints is investigated for a class of uncertain continuous-time systems with sensor faults. A fauk model in sensors, which considers outage or partial degradation of sensors, is adopted. The influence of the disturbance on the quadratic stability of the closed-loop systems is analyzed. The reliable state-feedback controller is developed by a linear matrix inequalities （LMIs） approach, to minimize the upper bound of a quadratic cost fimction under the conditions that all the closed-loop poles be placed in a specified disk, and that the prescribed level of H∞ disturbance attenuation and the upper bound constraints of control inputs＇ magnitudes be guaranteed. Thus, with the above muki-criterion constraints, the resulting closed-loop system can provide satisfactory stability, transient property, a disturbance rejection level and minimized quadratic cost performance despite possible sensor faults.展开更多
The CD inequalities are introduced to imply the gradient estimate of Laplace operator on graphs. This article is based on the unbounded Laplacians, and finally concludes some equivalent properties of the CD(K,∞) and ...The CD inequalities are introduced to imply the gradient estimate of Laplace operator on graphs. This article is based on the unbounded Laplacians, and finally concludes some equivalent properties of the CD(K,∞) and CD(K,n).展开更多
In the present paper, the characterization of strong-type modular inequality ∫ 0 ∞φ(Sf (t))w(t)dt≤∫0∞ φ(Cf (t))w(t)dt, f↓ is given, where φ∈Δ' and S is a Hardy operator. Furthermore, the equivalent con...In the present paper, the characterization of strong-type modular inequality ∫ 0 ∞φ(Sf (t))w(t)dt≤∫0∞ φ(Cf (t))w(t)dt, f↓ is given, where φ∈Δ' and S is a Hardy operator. Furthermore, the equivalent conditions of modular inequalities and norm inequalities related to weak Orlicz-Lorentz spaces are researched. We also explore the conditions for Orlicz-Lorentz spaces and weak Orlicz-Lorentz spaces to be normable. Finally, the weak boundedness of certain Hardy-type operators on Orlicz-Lorentz spaces is studied.展开更多
文摘In this paper, it analyses the unequipollence of exergy, and basing on this, it also gives the conceptionof the spring-coefficient of exergy, the consuming rate of the primary exergy and the objective exergy. Basing on thespring coefficient of exergy, it analyses the effect of the exergy efficiency of single unit on the exergy of the totalsystem, educes the calculating method of the consuming rate of the primary exergy, and calculates a real example. Theresults show that the consuming rate of the primary exergy of single unit can exhibit the characteristics of the systembest, and analyses the potential power of saving energy of the system scientifically. It also discusses the factors thataffect the exergy-coefficiency of the cooling coils.
基金Projects 2004CB619205 supported by the National Basic Research and Development Program of China50321402 by the National Science Fund for Distingui- shed Young Scholars of China50574099 by the National Natural Science Foundation of China
文摘Ore dumps are heterogeneous bodies with anisotropic seepage characteristics because of the ore segregation. In an indoor experiment,a dump was constructed with three strata,where the horizontal and vertical seepage experi-ments were carried out. Horizontals flow are regarded as phreatic plan flows without penetration. Its seepage law sati-fies the Dupuit equation. With parallel lay seepage model,the equivalent seepage coefficient in the horizontal flow was obtained and was equivalent to the weighted mean of the seepage coefficient of each stratum. An unsaturated flow ap-peared in the vertical experiment,with a hydraulic gradient of 1. The vertical flow was equivalent to the seepage model that moved in vertical bedding; its equivalent seepage coefficient depended on the stratum with the minimum seepage coefficient. That the experiment showed clear anisotropy in a heterogeneous body was obvious with an anisotropic co-efficient between 63 and 155,which is 25 to 100 times larger than that of a homogeneous body.
文摘In this letter, we shall show how to construct constrained Bell-type inequality for a generaltwo-party system, and violating this inequality is equivalent to being inseparable. For 2 (×) 2 system, the maximum violation is 3,while for 3 (×) 3 system, the largest violation is 11/3.
基金the National Natural Science Foundation of China (No. 60574082)the National Creative Research Groups Sci-ence Foundation of China (No. 60721062)the China Postdoc-toral Science Foundation (No. 20070411178)
文摘The suboptimal reliable guaranteed cost control （RGCC） with multi-criterion constraints is investigated for a class of uncertain continuous-time systems with sensor faults. A fauk model in sensors, which considers outage or partial degradation of sensors, is adopted. The influence of the disturbance on the quadratic stability of the closed-loop systems is analyzed. The reliable state-feedback controller is developed by a linear matrix inequalities （LMIs） approach, to minimize the upper bound of a quadratic cost fimction under the conditions that all the closed-loop poles be placed in a specified disk, and that the prescribed level of H∞ disturbance attenuation and the upper bound constraints of control inputs＇ magnitudes be guaranteed. Thus, with the above muki-criterion constraints, the resulting closed-loop system can provide satisfactory stability, transient property, a disturbance rejection level and minimized quadratic cost performance despite possible sensor faults.
文摘The CD inequalities are introduced to imply the gradient estimate of Laplace operator on graphs. This article is based on the unbounded Laplacians, and finally concludes some equivalent properties of the CD(K,∞) and CD(K,n).
基金supported by National Natural Science Foundation of China (Grant Nos.10931001, 10871173 and 11101372)
文摘In the present paper, the characterization of strong-type modular inequality ∫ 0 ∞φ(Sf (t))w(t)dt≤∫0∞ φ(Cf (t))w(t)dt, f↓ is given, where φ∈Δ' and S is a Hardy operator. Furthermore, the equivalent conditions of modular inequalities and norm inequalities related to weak Orlicz-Lorentz spaces are researched. We also explore the conditions for Orlicz-Lorentz spaces and weak Orlicz-Lorentz spaces to be normable. Finally, the weak boundedness of certain Hardy-type operators on Orlicz-Lorentz spaces is studied.
