Emitters with narrowband spectra are of great importance nowadays because of the growing demand for ultra-high-definition displays in the fields of panel displays and solid-state lighting.Though the reported multiple ...Emitters with narrowband spectra are of great importance nowadays because of the growing demand for ultra-high-definition displays in the fields of panel displays and solid-state lighting.Though the reported multiple resonance(MR)emitters have been widely studied with extremely sharp spectra and color-tunable emissions,the electrophilic borylation synthetic strategies and stable narrowband blue devices still face great challenges.展开更多
Regeneration of pure water is an important issue not only for the healthy life but also for the fine control of precise processes in various industries.One important issue in ultrahigh purified water is to reduce the ...Regeneration of pure water is an important issue not only for the healthy life but also for the fine control of precise processes in various industries.One important issue in ultrahigh purified water is to reduce the amount of total organic carbon(TOC).Herein,we introduce a new approach to reduce the TOC using the surface silanized nanoparticles,in which the magnetic nanoparticles(mNPs)are silanized and then complexed with ion exchange resin(IER)beads.The Fe3O4 mNPs are surface modified by using high concentrated vinyltrimethoxysilane(VTMS)and then adhered on the surface of IER beads.The surface modified mNPs have a thick-shell of polysiloxane layer varying from 5 to 22 nm depending on the amount of VTMS used,which leads the significant increase of specific surface area.The IER beads embedding VTMS-silanized mNPs achieves about 7μg/L of the TOC level in ultrapure water system,which is two orders less than 228μg/L of the feeding water and one order less than 96μg/L from the system using pristine IER beads.This result is mainly attributed to the polysiloxane layer forming broccoli-like surface structure and some part by the vinyl group of VTMS exposed to the amines in the water.展开更多
针对某TFT(thin film transistor)-LCD厂超纯水制造系统工艺需求,采用分布式I/O和S7-400H的集中监控的方式进行了控制系统设计,在此基础上选择了基于S7-400H的硬件冗余方式进行系统的冗余设计,并给出了主机架电源冗余、PLC处理器冗余、...针对某TFT(thin film transistor)-LCD厂超纯水制造系统工艺需求,采用分布式I/O和S7-400H的集中监控的方式进行了控制系统设计,在此基础上选择了基于S7-400H的硬件冗余方式进行系统的冗余设计,并给出了主机架电源冗余、PLC处理器冗余、通信冗余(包括通讯接口、总线接头、总线电缆的冗余)等方面的冗余配置与设计,保证系统的可靠性和稳定性。经过4年的安全运行证明该系统完全满足设计要求。展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.51903137,22135004 and 61890942)the Guangdong Basic and Applied Basic Research Foundation(2021B1515120041).
文摘Emitters with narrowband spectra are of great importance nowadays because of the growing demand for ultra-high-definition displays in the fields of panel displays and solid-state lighting.Though the reported multiple resonance(MR)emitters have been widely studied with extremely sharp spectra and color-tunable emissions,the electrophilic borylation synthetic strategies and stable narrowband blue devices still face great challenges.
基金supported by the Korea Evaluation Institute of Industrial Technology(KEIT)grant funded by the Korea Ministry of Trade Industry&Energy(MOTIE)[10062871,Development of high efficiention exchange materials and modules for preparing UPW for semi-conducting industry applications].
文摘Regeneration of pure water is an important issue not only for the healthy life but also for the fine control of precise processes in various industries.One important issue in ultrahigh purified water is to reduce the amount of total organic carbon(TOC).Herein,we introduce a new approach to reduce the TOC using the surface silanized nanoparticles,in which the magnetic nanoparticles(mNPs)are silanized and then complexed with ion exchange resin(IER)beads.The Fe3O4 mNPs are surface modified by using high concentrated vinyltrimethoxysilane(VTMS)and then adhered on the surface of IER beads.The surface modified mNPs have a thick-shell of polysiloxane layer varying from 5 to 22 nm depending on the amount of VTMS used,which leads the significant increase of specific surface area.The IER beads embedding VTMS-silanized mNPs achieves about 7μg/L of the TOC level in ultrapure water system,which is two orders less than 228μg/L of the feeding water and one order less than 96μg/L from the system using pristine IER beads.This result is mainly attributed to the polysiloxane layer forming broccoli-like surface structure and some part by the vinyl group of VTMS exposed to the amines in the water.
文摘针对某TFT(thin film transistor)-LCD厂超纯水制造系统工艺需求,采用分布式I/O和S7-400H的集中监控的方式进行了控制系统设计,在此基础上选择了基于S7-400H的硬件冗余方式进行系统的冗余设计,并给出了主机架电源冗余、PLC处理器冗余、通信冗余(包括通讯接口、总线接头、总线电缆的冗余)等方面的冗余配置与设计,保证系统的可靠性和稳定性。经过4年的安全运行证明该系统完全满足设计要求。
文摘以新疆鄯善某铁选厂为例,介绍了在超纯铁精矿选矿中的立式搅拌磨机设备选型及工业应用情况。实验室选型实验及工业应用数据表明,选用2台JM-1500型立磨机用于粗精矿的再磨,再磨细度能稳定达到-0.045 mm粒级含量不低于96%,单台立磨机处理能力8~8.5 t/h,能耗约15~16 k W·h/t,铁精矿TFe品位达到71.5%。试验结果表明立式搅拌磨机是超纯铁精矿选矿提纯的有效细磨设备。
