Based on the characteristics of ATM system and the special requirement of financial transaction, an overall design of hardware and software structure of ATM was made. For software structure, the pattern of modules and...Based on the characteristics of ATM system and the special requirement of financial transaction, an overall design of hardware and software structure of ATM was made. For software structure, the pattern of modules and table? drive is adopted to realize the security of financial transaction and the diagnosis of communication fault. A new method, which is based on the application layer, transport layer and network layer, is used for diagnosing communication fault. Supporting both magnetic card and IC card, the system has been put into use in real financial systems, and has brought about both economic and social effects.展开更多
SMART （system-integrated modular advanced reactor） is a small-sized advanced integral reactor with a rated thermal power of 330 MW. It can produce 100 MW of electricity, or 90 MW of electricity and 40,000 t of desal...SMART （system-integrated modular advanced reactor） is a small-sized advanced integral reactor with a rated thermal power of 330 MW. It can produce 100 MW of electricity, or 90 MW of electricity and 40,000 t of desalinated water concurrently, which is sufficient for 100,000 residents. SMART technology is a sensible mixture of new innovative design features and proven technologies through a PWR. The enhancement of safety and reliability is realized by incorporating inherent safety features and reliable passive safety systems. The improvement in the economics is achieved through system simplification, component modularization, construction time reduction, and increased plant availability. All technologies and design features implemented into SMART have been proven in industries and/or qualified through the SMART design verification program including comprehensive test and experiments. The full scope of the safety analyses carried out to confirm that the inherent safety-improvement design characteristics and safety systems of SMART ensure reactor safety. After a thorough licensing review, SDA （standard design approval） for SMART was granted on July 4th, 2012 by the Korea NSSC （Nuclear Safety and Security Commission）. This marks the first license for an integral-type reactor in the world. This paper presents the SMART characteristics, safety features and technology validation. The licensing process of SMART is also described.展开更多
The paper takes network security guard as a dynamic process, each link of the network security technology throughout the entire firm information operation, namely design an integrated network security system, which in...The paper takes network security guard as a dynamic process, each link of the network security technology throughout the entire firm information operation, namely design an integrated network security system, which includes firewall system, VPN system etc.. The system can meet the requirements of network security and the goals of design network security.展开更多
HIPS （High Integrity Protection System） is a really important system to protect the fractionation column from overpressure and to protect any atmospheric pollution from flare stack, scrubber and VCU （vapor combusti...HIPS （High Integrity Protection System） is a really important system to protect the fractionation column from overpressure and to protect any atmospheric pollution from flare stack, scrubber and VCU （vapor combustion unit）, etc. KOSHA （Korea Occupational Safety ＆ Health Agency） made criteria about HIPS inspection in 2007 to enforce HIPS inspection. HIPS is the first system which KOSHA and KGS （Korea Gas Safety Corp.） officially required to attach SIL verification report in the Process Safety Report. KOSHA and KGS uniformly require SIL3 for HIPS and require to configure the safety instrumented function to meet SIL3 requirement. The flare system with SIL3 application should have the interlocks to shut off the heat source in case of high pressure from tower, the cooling system failure and the power failure. KOSHA and KGS admit that the flare load is 0 where SIL 3 is applied to the flare system. So it is beneficial to plant because the equipment investment cost can be saved if SIL3 is applied to the flare system. By this reason, so many plants in Korea applied SIL3 to the flare system, scrubber system and VCU, etc. For SIL3 application, the redundant shutdown valve with PST （partial stroke test） should be installed with 1 out of 2 voting and the positioner for PST function should have HART communication function. There were problems caused by HART communication devices, so the system design should be cautiously done considering the operation availability and safety at the same time.展开更多
文摘Based on the characteristics of ATM system and the special requirement of financial transaction, an overall design of hardware and software structure of ATM was made. For software structure, the pattern of modules and table? drive is adopted to realize the security of financial transaction and the diagnosis of communication fault. A new method, which is based on the application layer, transport layer and network layer, is used for diagnosing communication fault. Supporting both magnetic card and IC card, the system has been put into use in real financial systems, and has brought about both economic and social effects.
文摘SMART （system-integrated modular advanced reactor） is a small-sized advanced integral reactor with a rated thermal power of 330 MW. It can produce 100 MW of electricity, or 90 MW of electricity and 40,000 t of desalinated water concurrently, which is sufficient for 100,000 residents. SMART technology is a sensible mixture of new innovative design features and proven technologies through a PWR. The enhancement of safety and reliability is realized by incorporating inherent safety features and reliable passive safety systems. The improvement in the economics is achieved through system simplification, component modularization, construction time reduction, and increased plant availability. All technologies and design features implemented into SMART have been proven in industries and/or qualified through the SMART design verification program including comprehensive test and experiments. The full scope of the safety analyses carried out to confirm that the inherent safety-improvement design characteristics and safety systems of SMART ensure reactor safety. After a thorough licensing review, SDA （standard design approval） for SMART was granted on July 4th, 2012 by the Korea NSSC （Nuclear Safety and Security Commission）. This marks the first license for an integral-type reactor in the world. This paper presents the SMART characteristics, safety features and technology validation. The licensing process of SMART is also described.
文摘The paper takes network security guard as a dynamic process, each link of the network security technology throughout the entire firm information operation, namely design an integrated network security system, which includes firewall system, VPN system etc.. The system can meet the requirements of network security and the goals of design network security.
文摘HIPS （High Integrity Protection System） is a really important system to protect the fractionation column from overpressure and to protect any atmospheric pollution from flare stack, scrubber and VCU （vapor combustion unit）, etc. KOSHA （Korea Occupational Safety ＆ Health Agency） made criteria about HIPS inspection in 2007 to enforce HIPS inspection. HIPS is the first system which KOSHA and KGS （Korea Gas Safety Corp.） officially required to attach SIL verification report in the Process Safety Report. KOSHA and KGS uniformly require SIL3 for HIPS and require to configure the safety instrumented function to meet SIL3 requirement. The flare system with SIL3 application should have the interlocks to shut off the heat source in case of high pressure from tower, the cooling system failure and the power failure. KOSHA and KGS admit that the flare load is 0 where SIL 3 is applied to the flare system. So it is beneficial to plant because the equipment investment cost can be saved if SIL3 is applied to the flare system. By this reason, so many plants in Korea applied SIL3 to the flare system, scrubber system and VCU, etc. For SIL3 application, the redundant shutdown valve with PST （partial stroke test） should be installed with 1 out of 2 voting and the positioner for PST function should have HART communication function. There were problems caused by HART communication devices, so the system design should be cautiously done considering the operation availability and safety at the same time.
