A new microreactor with continuous serially connected micromixers(CSCM)was tailored for the coprecipitation process to synthesize Fe_(3)O_(4) nanoparticles.Numerical simulation reveals that the two types of CSCM micro...A new microreactor with continuous serially connected micromixers(CSCM)was tailored for the coprecipitation process to synthesize Fe_(3)O_(4) nanoparticles.Numerical simulation reveals that the two types of CSCM microchannels(V-typed and U-typed)proposed in this work exhibited markedly better mixing performances than the Zigzag and capillary microchannels due to the promotion of Dean vortices.Complete mixing was achieved in the V-typed microchannel in 2.7 s at an inlet Reynolds number of 27.Fe_(3)O_(4) nanoparticles synthesized in a planar glass microreactor with the V-typed microchannel,possessing an average size of 9.3 nm and exhibiting superparamagnetism,had obviously better dispersity and uniformity and higher crystallinity than those obtained in the capillary microreactor.The new CSCM microreactor developed in this work can act as a potent device to intensify the synthesis of similar inorganic nanoparticles via multistep chemical precipitation processes.展开更多
The women of the 1930s in the Chinese TV serials deduct inspiring stories.They play different roles in the big wealthy families such as mothers-in-law,daughters-in-law,and maidservants.There are unceasing conflicts be...The women of the 1930s in the Chinese TV serials deduct inspiring stories.They play different roles in the big wealthy families such as mothers-in-law,daughters-in-law,and maidservants.There are unceasing conflicts between these women,because of their struggle for men's love,wealth or social position.The theme of their stories is always about fertility,love,kindness and evil,with the ending being either comic or tragic.The stories of various kinds of women of the 1930s in the Chinese TV serials decorate and enrich the lives of many of us latecomers and their names are passed on from generation to generation.展开更多
The increasing trends in SoCs and SiPs technologies demand integration of large numbers of buses and metal tracks for interconnections. On-Chip SerDes Transceiver is a promising solution which can reduce the number of...The increasing trends in SoCs and SiPs technologies demand integration of large numbers of buses and metal tracks for interconnections. On-Chip SerDes Transceiver is a promising solution which can reduce the number of interconnects and offers remarkable benefits in context with power consumption, area congestion and crosstalk. This paper reports a design of a new Serializer and Deserializer architecture for basic functional operations of serialization and deserialization used in On-Chip SerDes Transceiver. This architecture employs a design technique which samples input on both edges of clock. The main advantage of this technique which is input is sampled with lower clock (half the original rate) and is distributed for the same functional throughput, which results in power savings in the clock distribution network. This proposed Serializer and Deserializer architecture is designed using UMC 180 nm CMOS technology and simulation is done using Cadence Spectre simulator with a supply voltage of 1.8 V. The present design is compared with the earlier published similar works and improvements are obtained in terms of power consumption and area as shown in Tables 1-3 respectively. This design also helps the designer for solving crosstalk issues.展开更多
This article presents two designs,the Transaction Serial Format(TSF)and the Transaction Array Model(TAM).Together,they provide full,efficient,transaction serialization facilities for devices with limited onboard energ...This article presents two designs,the Transaction Serial Format(TSF)and the Transaction Array Model(TAM).Together,they provide full,efficient,transaction serialization facilities for devices with limited onboard energy,such as those in an Internet of Things(IoT)network.TSF provides a compact,non-parsed,format that requires minimal processing for transaction deserialization.TAM provides an internal data structure that needs minimal dynamic storage and directly uses the elements of TSF.The simple lexical units of TSF do not require parsing.The lexical units contain enough information to allocate the internal TAM data structure efficiently.TSF generality is equivalent to XML and JSON.TSF represents any XML document or JSON object without loss of information,including whitespace.The XML equivalence provides a foundation for the performance comparisons.A performance comparison of a C reference implementation of TSF and TAM to the popular Expat XML library,also written in C,shows that TSF reduces deserialization processor time by more than 80%.展开更多
在各种软件开发语言中,Java语言作为一种跨平台的编程语言,"一次编译,到处运行"的特点,极大降低了跨平台软件开发的复杂度。JVM内存的合理使用对虚拟机稳定、优化地工作具有重要的作用。本文以Sun Hot Spot 1.6为例,主要探讨...在各种软件开发语言中,Java语言作为一种跨平台的编程语言,"一次编译,到处运行"的特点,极大降低了跨平台软件开发的复杂度。JVM内存的合理使用对虚拟机稳定、优化地工作具有重要的作用。本文以Sun Hot Spot 1.6为例,主要探讨并验证Serial收集器的内存分配与回收策略。展开更多
Thi s paper introduces the usage of these functions. It presents the technique of ho w to program with them to perform the serial communications between a computer a nd other digital devices by the serial ports in Win...Thi s paper introduces the usage of these functions. It presents the technique of ho w to program with them to perform the serial communications between a computer a nd other digital devices by the serial ports in Windows95.The related sample cod es of the applications of this technique written in C++ programming language are also given. This technique is applied successfully to receive the data of t he radio noise from a frequency monitor.展开更多
基金the financial support from the National Natural Science Foundation of China(21808059)the Fundamental Research Funds for the Central Universities(JKA01221712).
文摘A new microreactor with continuous serially connected micromixers(CSCM)was tailored for the coprecipitation process to synthesize Fe_(3)O_(4) nanoparticles.Numerical simulation reveals that the two types of CSCM microchannels(V-typed and U-typed)proposed in this work exhibited markedly better mixing performances than the Zigzag and capillary microchannels due to the promotion of Dean vortices.Complete mixing was achieved in the V-typed microchannel in 2.7 s at an inlet Reynolds number of 27.Fe_(3)O_(4) nanoparticles synthesized in a planar glass microreactor with the V-typed microchannel,possessing an average size of 9.3 nm and exhibiting superparamagnetism,had obviously better dispersity and uniformity and higher crystallinity than those obtained in the capillary microreactor.The new CSCM microreactor developed in this work can act as a potent device to intensify the synthesis of similar inorganic nanoparticles via multistep chemical precipitation processes.
文摘The women of the 1930s in the Chinese TV serials deduct inspiring stories.They play different roles in the big wealthy families such as mothers-in-law,daughters-in-law,and maidservants.There are unceasing conflicts between these women,because of their struggle for men's love,wealth or social position.The theme of their stories is always about fertility,love,kindness and evil,with the ending being either comic or tragic.The stories of various kinds of women of the 1930s in the Chinese TV serials decorate and enrich the lives of many of us latecomers and their names are passed on from generation to generation.
文摘The increasing trends in SoCs and SiPs technologies demand integration of large numbers of buses and metal tracks for interconnections. On-Chip SerDes Transceiver is a promising solution which can reduce the number of interconnects and offers remarkable benefits in context with power consumption, area congestion and crosstalk. This paper reports a design of a new Serializer and Deserializer architecture for basic functional operations of serialization and deserialization used in On-Chip SerDes Transceiver. This architecture employs a design technique which samples input on both edges of clock. The main advantage of this technique which is input is sampled with lower clock (half the original rate) and is distributed for the same functional throughput, which results in power savings in the clock distribution network. This proposed Serializer and Deserializer architecture is designed using UMC 180 nm CMOS technology and simulation is done using Cadence Spectre simulator with a supply voltage of 1.8 V. The present design is compared with the earlier published similar works and improvements are obtained in terms of power consumption and area as shown in Tables 1-3 respectively. This design also helps the designer for solving crosstalk issues.
文摘This article presents two designs,the Transaction Serial Format(TSF)and the Transaction Array Model(TAM).Together,they provide full,efficient,transaction serialization facilities for devices with limited onboard energy,such as those in an Internet of Things(IoT)network.TSF provides a compact,non-parsed,format that requires minimal processing for transaction deserialization.TAM provides an internal data structure that needs minimal dynamic storage and directly uses the elements of TSF.The simple lexical units of TSF do not require parsing.The lexical units contain enough information to allocate the internal TAM data structure efficiently.TSF generality is equivalent to XML and JSON.TSF represents any XML document or JSON object without loss of information,including whitespace.The XML equivalence provides a foundation for the performance comparisons.A performance comparison of a C reference implementation of TSF and TAM to the popular Expat XML library,also written in C,shows that TSF reduces deserialization processor time by more than 80%.
基金Supported by the 86 3 High Technology Project of China (86 3-818-0 1-0 2 )
文摘Thi s paper introduces the usage of these functions. It presents the technique of ho w to program with them to perform the serial communications between a computer a nd other digital devices by the serial ports in Windows95.The related sample cod es of the applications of this technique written in C++ programming language are also given. This technique is applied successfully to receive the data of t he radio noise from a frequency monitor.
