Professor Ma Rongjun was bron in 1931 at Dacheng County of Hebei Province. He graduated from Northeast University of Technology in 1955 and studied as a postgraduate at Kosice
According to the principle of belt seeding establishment of adhesive bonded fabric,applied indexes of belt seeding establishment effect were studied using carrier combination of several kinds of waste meterials under...According to the principle of belt seeding establishment of adhesive bonded fabric,applied indexes of belt seeding establishment effect were studied using carrier combination of several kinds of waste meterials under soil cover.The results showed that the effect depended on the coordinated characteristics of carrier combination from turfgrass and waste materials.It was testified that production of belt seeding was feasible using a certain kind of waste material carrier under given conditions.The study provided a scientific basis for applying evvironmental engineering to belt seeding establishment of waste materials and developing nwe industry of environmental protection.展开更多
The pressure comfort of passengers and crew in high-speed trains faces significant challenges under alternating open-tunnel conditions.To better understand the mechanism of pressure transmission and control interior p...The pressure comfort of passengers and crew in high-speed trains faces significant challenges under alternating open-tunnel conditions.To better understand the mechanism of pressure transmission and control interior pressure fluctuations in high-altitude regions,this study develops an interior pressure fluctuation model.By establishing the frameworks of the non-ideal gas state equation and the polytropic process equation,gas heat transfer and mass transfer were expressed through the first law of thermodynamics and the continuity equation.Simulation results,evaluated by root mean square error,coefficient of determination,peak-to-peak error,and pressure change rate,show that the proposed model closely aligns with measured signals in both overall trends and local details.Data from various train types and tunnel scenarios further demonstrate the model's accuracy and practical applicability.This study provides a critical foundation for evaluating interior pressure comfort for high-speed trains in high-altitude regions.展开更多
Based on the theory of marginal opportunity cost, one kind of green input-output table and models of power company are put forward in this paper. For an appliable purpose, analysis of integrated planning, cost analysi...Based on the theory of marginal opportunity cost, one kind of green input-output table and models of power company are put forward in this paper. For an appliable purpose, analysis of integrated planning, cost analysis, pricing of the power company are also given.展开更多
Aspects of techniques for understanding and developing a system which is useful in the context of Disaster Management are outlined in the paper. The emphasis is on techniques for the development of requirements and so...Aspects of techniques for understanding and developing a system which is useful in the context of Disaster Management are outlined in the paper. The emphasis is on techniques for the development of requirements and software - specifically here for the basic, underlying computing system whose application packages (amongst others: Decision Support Sub-Systems) shall support Disaster Prediction, Relief (Damage Assessment & Mitigation) and Recovery. Throughout the body of the paper we shall be making frequent references to Decision Support Sub-Systems. As acronym for the subject domain the author has chosen: DiMaCS: Disaster Management Computing Systems.展开更多
文摘Professor Ma Rongjun was bron in 1931 at Dacheng County of Hebei Province. He graduated from Northeast University of Technology in 1955 and studied as a postgraduate at Kosice
基金supported by National Science Foundation of China (5 98780 33) Young Science Foundation of Tianjin- 2 1Centuries(97370 5 111)
文摘According to the principle of belt seeding establishment of adhesive bonded fabric,applied indexes of belt seeding establishment effect were studied using carrier combination of several kinds of waste meterials under soil cover.The results showed that the effect depended on the coordinated characteristics of carrier combination from turfgrass and waste materials.It was testified that production of belt seeding was feasible using a certain kind of waste material carrier under given conditions.The study provided a scientific basis for applying evvironmental engineering to belt seeding establishment of waste materials and developing nwe industry of environmental protection.
基金Project(52372402)supported by the National Natural Science Foundation of China。
文摘The pressure comfort of passengers and crew in high-speed trains faces significant challenges under alternating open-tunnel conditions.To better understand the mechanism of pressure transmission and control interior pressure fluctuations in high-altitude regions,this study develops an interior pressure fluctuation model.By establishing the frameworks of the non-ideal gas state equation and the polytropic process equation,gas heat transfer and mass transfer were expressed through the first law of thermodynamics and the continuity equation.Simulation results,evaluated by root mean square error,coefficient of determination,peak-to-peak error,and pressure change rate,show that the proposed model closely aligns with measured signals in both overall trends and local details.Data from various train types and tunnel scenarios further demonstrate the model's accuracy and practical applicability.This study provides a critical foundation for evaluating interior pressure comfort for high-speed trains in high-altitude regions.
文摘Based on the theory of marginal opportunity cost, one kind of green input-output table and models of power company are put forward in this paper. For an appliable purpose, analysis of integrated planning, cost analysis, pricing of the power company are also given.
文摘Aspects of techniques for understanding and developing a system which is useful in the context of Disaster Management are outlined in the paper. The emphasis is on techniques for the development of requirements and software - specifically here for the basic, underlying computing system whose application packages (amongst others: Decision Support Sub-Systems) shall support Disaster Prediction, Relief (Damage Assessment & Mitigation) and Recovery. Throughout the body of the paper we shall be making frequent references to Decision Support Sub-Systems. As acronym for the subject domain the author has chosen: DiMaCS: Disaster Management Computing Systems.
