本文根据目前OMA(Open Mobile Alliance,开放移动联盟)对群组,Presence及消息类业务的协议规范,介绍了OMA IMPS体系结构、CSP协议、以及消息封装格式。其中重点对SMS消息封装进行了介绍和研究,提出了基于OMA IMPS协议SMS消息封装的移动...本文根据目前OMA(Open Mobile Alliance,开放移动联盟)对群组,Presence及消息类业务的协议规范,介绍了OMA IMPS体系结构、CSP协议、以及消息封装格式。其中重点对SMS消息封装进行了介绍和研究,提出了基于OMA IMPS协议SMS消息封装的移动终端即时通讯设计方案,并对其可行性进行了评估。展开更多
The kinetics of interracial processes of CdSe thin film electrode before and after sur- face modification of 1,1'-di linolene ferrocenyl L-B films have been studied in K_4Fe(CN)_6 solution by Intensity Modulated P...The kinetics of interracial processes of CdSe thin film electrode before and after sur- face modification of 1,1'-di linolene ferrocenyl L-B films have been studied in K_4Fe(CN)_6 solution by Intensity Modulated Photocurrent Spectroscopy(IMPS).Potential dependence of surface state relaxation time(T_s),steady state photocurrent(I_s),collection coefficient of minority carriers(G_o), rate constant of photocorrosion(K_(cr)),and density of surface state(N_(ss))were determined in terms of frequency response analysis of IMPS plots.展开更多
IMPS（Instant Message and Presence Service）系统是独立于移动通信网络的一个业务处理系统．主要完成即时消息的发送、转寄／拒绝，Presence的订阅、获取、更改．联系人列表和属性列表的控制，组的创建、管理以及内容共享等功能。即...IMPS（Instant Message and Presence Service）系统是独立于移动通信网络的一个业务处理系统．主要完成即时消息的发送、转寄／拒绝，Presence的订阅、获取、更改．联系人列表和属性列表的控制，组的创建、管理以及内容共享等功能。即时消息的发送内容不但可以是文本，还可以是多媒体消息、电子名片、电子日历以及其他MIME类型的多种格式的内容。它涵盖了终端到终端、终端到增值应用、增值应用到终端的即时消息通信。展开更多
为进一步挖掘控制水稻抗倒伏的基因,以524份水稻种质资源为材料,采用GWAS(genome-wide association analysis)鉴定与抗倒伏性状显著关联的位点qRLG7,通过基因表达水平分析和候选基因关联分析确定调控水稻抗倒伏性的候选基因,在分析候选...为进一步挖掘控制水稻抗倒伏的基因,以524份水稻种质资源为材料,采用GWAS(genome-wide association analysis)鉴定与抗倒伏性状显著关联的位点qRLG7,通过基因表达水平分析和候选基因关联分析确定调控水稻抗倒伏性的候选基因,在分析候选基因的表达特征和启动子区自然变异基础上利用CRISPR-Cas9技术构建2个候选基因的突变体家系,考察转基因材料的抗倒伏性状。结果显示,编码肌醇-1-单磷酸酶的2个串联排列基因LOC_Os07g37220和LOC_Os07g37230在离茎秆基部5 cm节间中的表达量显著高于其余候选基因,而且这2个候选基因的表达量在极端抗倒伏和易倒伏2组材料中存在极显著差异;通过候选基因关联分析发现这2个基因启动子区的SNP与离基部5 cm茎秆直径(CD5)的表型值显著关联,且基于显著关联SNP的2种单倍型的CD5表型值存在显著差异,这2个候选基因的2种单倍型启动子活性检测结果也表明2种单倍型之间存在极显著差异;2个基因的功能缺失突变体植株在基部节间抗折力、茎秆厚度、茎秆直径以及株高和穗质量等性状方面与野生型对照存在显著差异。结果表明,候选基因LOC_Os07g37220和LOC_Os07g37230具有一定的抗倒伏功能。展开更多
In order to address the output feedback issue for linear discrete-time systems, this work suggests a brand-new adaptive dynamic programming(ADP) technique based on the internal model principle(IMP). The proposed metho...In order to address the output feedback issue for linear discrete-time systems, this work suggests a brand-new adaptive dynamic programming(ADP) technique based on the internal model principle(IMP). The proposed method, termed as IMP-ADP, does not require complete state feedback-merely the measurement of input and output data. More specifically, based on the IMP, the output control problem can first be converted into a stabilization problem. We then design an observer to reproduce the full state of the system by measuring the inputs and outputs. Moreover, this technique includes both a policy iteration algorithm and a value iteration algorithm to determine the optimal feedback gain without using a dynamic system model. It is important that with this concept one does not need to solve the regulator equation. Finally, this control method was tested on an inverter system of grid-connected LCLs to demonstrate that the proposed method provides the desired performance in terms of both tracking and disturbance rejection.展开更多
The photodegradation reaction rate of CHCl 3 in TiO 2 particulate suspension was improved significantly by HCl-treatment. The effect of HCl-treatment on the photocatalytic activity of TiO 2 was studied in a PEC cel...The photodegradation reaction rate of CHCl 3 in TiO 2 particulate suspension was improved significantly by HCl-treatment. The effect of HCl-treatment on the photocatalytic activity of TiO 2 was studied in a PEC cell by using Intensity-Modulated Photocurrent Spectroscopy (IMPS). The magnitude of photocurrent response and the characteristic frequencies of the upper and lower semicircles in the complex plane of IMPS response were analyzed, and the cathodic and anodic reaction processes of photogenerated holes and electrons were discussed. The increases in the cathodic and anodic photocurrent response and in the time constants of both cathodic and anodic reaction processes indicate that HCl-treatment leads to the improvement of the photocatalytic activity of TiO 2 and a change of the photocatalytic kinetic mechanism.展开更多
目的探讨Survivin、胰岛素样生长因子ⅡmRNA结合蛋白3(insulin-like growth factorⅡmRNA-binding protein 3,IMP3)及Claudin1在浆膜腔积液细胞蜡块中的表达及临床意义。方法收集我院病理科2017年2月~2021年11月行免疫组化检查且临床资...目的探讨Survivin、胰岛素样生长因子ⅡmRNA结合蛋白3(insulin-like growth factorⅡmRNA-binding protein 3,IMP3)及Claudin1在浆膜腔积液细胞蜡块中的表达及临床意义。方法收集我院病理科2017年2月~2021年11月行免疫组化检查且临床资料齐全的浆膜腔积液细胞块95例,其中恶性84例,良性11例(对照组)。应用免疫组化方法检测浆膜腔积液细胞蜡块中Survivin、IMP3及Claudin1蛋白的表达情况,并对比分析其在良恶性浆膜腔积液以及不同恶性肿瘤中的差异。结果恶性胸膜腔积液病例中胸腔积液53例,腹腔积液31例。肺腺癌41例,消化系统腺癌25例,卵巢恶性肿瘤9例,其他恶性肿瘤9例。与对照组相比,肺腺癌组及消化系统腺癌组IMP3的表达差异具有统计学意义(P<0.05),消化系统腺癌组Claudin1的表达差异具有统计学意义(P<0.05),其他组别Survivin、IMP3及Claudin1的表达与对照组相比差异均无统计学意义(P>0.05)。结论IMP3及Claudin1在恶性浆膜腔积液判断是否为消化系统腺癌来源时具有鉴别意义,IMP3在肺腺癌来源具有鉴别意义。展开更多
Inosine monophosphate(IMP),as a critical umami substance,is one of the most important indicators for evaluating the quality of meat products.Here,a sensitive electrochemiluminescence(ECL)biosensor based on graphdiyne(...Inosine monophosphate(IMP),as a critical umami substance,is one of the most important indicators for evaluating the quality of meat products.Here,a sensitive electrochemiluminescence(ECL)biosensor based on graphdiyne(GDY)/AuNPs/luminol nanocomposites was constructed to detect IMP.The GDY/AuNPs/luminol nanocomposites were synthesized by using simple one-pot method.GDY utilized its 2D framework to disperse and fix gold nanoparticles,which inhibited the agglomeration of gold nanoparticles and greatly improved its stability and catalytic properties.Importantly,GDY/AuNPs/luminol nanocomposites showed excellent catalytic ability and superior ECL activity towards luminol-H_(2)O_(2) systems due to the synergistic effect of GDY and AuNPs.Under optimal conditions,the prepared biosensor exhibited a wide linear range from 0.01 g/L to 20 g/L,a satisfactory limit detection of 0.0013 g/L,as well as an excellent specificity.Moreover,we carried out the precise analysis of IMP in actual meat samples with acceptable results compared to the liquid chromatography.We believe that this work could offer an efficient ECL platform for accurate and reliable report of IMP levels,which is significant for maintaining food quality and safety.展开更多
通过强度调制光电流谱(IMPS)和强度调制光电压谱(IMVS)技术研究在光电分解水制氢体系中碳点光阳极与KOH电解液界面的动力学行为。结果表明,光强在30–90 m W·cm^(-2)范围内,界面的电子传输时间(τ_d)、电子寿命(τ_n)、电子扩散系...通过强度调制光电流谱(IMPS)和强度调制光电压谱(IMVS)技术研究在光电分解水制氢体系中碳点光阳极与KOH电解液界面的动力学行为。结果表明,光强在30–90 m W·cm^(-2)范围内,界面的电子传输时间(τ_d)、电子寿命(τ_n)、电子扩散系数(D_n)、电子扩散长度(L_n)均没有变化;当光强增加到110和130 m W·cm^(-2)时,τ_d和τ_n延长,而D_n减小。实验表明,不同于Ti O_2/电解液等界面,碳点光电极/电解液界面中碳点电极存在的缺陷少,因此电子主要以无陷阱限制扩散方式传输为主。且在30–130 m W·cm^(-2)的光强范围内,与τ_d和τ_n相关的载流子收集效率(η_(cc))相近。展开更多
文摘本文根据目前OMA(Open Mobile Alliance,开放移动联盟)对群组,Presence及消息类业务的协议规范,介绍了OMA IMPS体系结构、CSP协议、以及消息封装格式。其中重点对SMS消息封装进行了介绍和研究,提出了基于OMA IMPS协议SMS消息封装的移动终端即时通讯设计方案,并对其可行性进行了评估。
基金This work was supported by the National Natural Science Foundation of China
文摘The kinetics of interracial processes of CdSe thin film electrode before and after sur- face modification of 1,1'-di linolene ferrocenyl L-B films have been studied in K_4Fe(CN)_6 solution by Intensity Modulated Photocurrent Spectroscopy(IMPS).Potential dependence of surface state relaxation time(T_s),steady state photocurrent(I_s),collection coefficient of minority carriers(G_o), rate constant of photocorrosion(K_(cr)),and density of surface state(N_(ss))were determined in terms of frequency response analysis of IMPS plots.
文摘IMPS（Instant Message and Presence Service）系统是独立于移动通信网络的一个业务处理系统．主要完成即时消息的发送、转寄／拒绝，Presence的订阅、获取、更改．联系人列表和属性列表的控制，组的创建、管理以及内容共享等功能。即时消息的发送内容不但可以是文本，还可以是多媒体消息、电子名片、电子日历以及其他MIME类型的多种格式的内容。它涵盖了终端到终端、终端到增值应用、增值应用到终端的即时消息通信。
文摘为进一步挖掘控制水稻抗倒伏的基因,以524份水稻种质资源为材料,采用GWAS(genome-wide association analysis)鉴定与抗倒伏性状显著关联的位点qRLG7,通过基因表达水平分析和候选基因关联分析确定调控水稻抗倒伏性的候选基因,在分析候选基因的表达特征和启动子区自然变异基础上利用CRISPR-Cas9技术构建2个候选基因的突变体家系,考察转基因材料的抗倒伏性状。结果显示,编码肌醇-1-单磷酸酶的2个串联排列基因LOC_Os07g37220和LOC_Os07g37230在离茎秆基部5 cm节间中的表达量显著高于其余候选基因,而且这2个候选基因的表达量在极端抗倒伏和易倒伏2组材料中存在极显著差异;通过候选基因关联分析发现这2个基因启动子区的SNP与离基部5 cm茎秆直径(CD5)的表型值显著关联,且基于显著关联SNP的2种单倍型的CD5表型值存在显著差异,这2个候选基因的2种单倍型启动子活性检测结果也表明2种单倍型之间存在极显著差异;2个基因的功能缺失突变体植株在基部节间抗折力、茎秆厚度、茎秆直径以及株高和穗质量等性状方面与野生型对照存在显著差异。结果表明,候选基因LOC_Os07g37220和LOC_Os07g37230具有一定的抗倒伏功能。
基金supported by the National Science Fund for Distinguished Young Scholars (62225303)the Fundamental Research Funds for the Central Universities (buctrc202201)+1 种基金China Scholarship Council,and High Performance Computing PlatformCollege of Information Science and Technology,Beijing University of Chemical Technology。
文摘In order to address the output feedback issue for linear discrete-time systems, this work suggests a brand-new adaptive dynamic programming(ADP) technique based on the internal model principle(IMP). The proposed method, termed as IMP-ADP, does not require complete state feedback-merely the measurement of input and output data. More specifically, based on the IMP, the output control problem can first be converted into a stabilization problem. We then design an observer to reproduce the full state of the system by measuring the inputs and outputs. Moreover, this technique includes both a policy iteration algorithm and a value iteration algorithm to determine the optimal feedback gain without using a dynamic system model. It is important that with this concept one does not need to solve the regulator equation. Finally, this control method was tested on an inverter system of grid-connected LCLs to demonstrate that the proposed method provides the desired performance in terms of both tracking and disturbance rejection.
基金ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .2 98730 5 7) ,NationalResearchFundforFoundamentalKeyProject (No .G2 0 0 0 0 2 82 0 5 )andtheInnovativeFoundationofChineseAcademyofSciences (No .KGCX2 30 3 0 2)
文摘The photodegradation reaction rate of CHCl 3 in TiO 2 particulate suspension was improved significantly by HCl-treatment. The effect of HCl-treatment on the photocatalytic activity of TiO 2 was studied in a PEC cell by using Intensity-Modulated Photocurrent Spectroscopy (IMPS). The magnitude of photocurrent response and the characteristic frequencies of the upper and lower semicircles in the complex plane of IMPS response were analyzed, and the cathodic and anodic reaction processes of photogenerated holes and electrons were discussed. The increases in the cathodic and anodic photocurrent response and in the time constants of both cathodic and anodic reaction processes indicate that HCl-treatment leads to the improvement of the photocatalytic activity of TiO 2 and a change of the photocatalytic kinetic mechanism.
文摘目的探讨Survivin、胰岛素样生长因子ⅡmRNA结合蛋白3(insulin-like growth factorⅡmRNA-binding protein 3,IMP3)及Claudin1在浆膜腔积液细胞蜡块中的表达及临床意义。方法收集我院病理科2017年2月~2021年11月行免疫组化检查且临床资料齐全的浆膜腔积液细胞块95例,其中恶性84例,良性11例(对照组)。应用免疫组化方法检测浆膜腔积液细胞蜡块中Survivin、IMP3及Claudin1蛋白的表达情况,并对比分析其在良恶性浆膜腔积液以及不同恶性肿瘤中的差异。结果恶性胸膜腔积液病例中胸腔积液53例,腹腔积液31例。肺腺癌41例,消化系统腺癌25例,卵巢恶性肿瘤9例,其他恶性肿瘤9例。与对照组相比,肺腺癌组及消化系统腺癌组IMP3的表达差异具有统计学意义(P<0.05),消化系统腺癌组Claudin1的表达差异具有统计学意义(P<0.05),其他组别Survivin、IMP3及Claudin1的表达与对照组相比差异均无统计学意义(P>0.05)。结论IMP3及Claudin1在恶性浆膜腔积液判断是否为消化系统腺癌来源时具有鉴别意义,IMP3在肺腺癌来源具有鉴别意义。
基金supported by The National Natural Science Foundation of China(31972198,31622042)The National Key R&D Program of China(2016YFD0400803,2016YFD0401501).
文摘Inosine monophosphate(IMP),as a critical umami substance,is one of the most important indicators for evaluating the quality of meat products.Here,a sensitive electrochemiluminescence(ECL)biosensor based on graphdiyne(GDY)/AuNPs/luminol nanocomposites was constructed to detect IMP.The GDY/AuNPs/luminol nanocomposites were synthesized by using simple one-pot method.GDY utilized its 2D framework to disperse and fix gold nanoparticles,which inhibited the agglomeration of gold nanoparticles and greatly improved its stability and catalytic properties.Importantly,GDY/AuNPs/luminol nanocomposites showed excellent catalytic ability and superior ECL activity towards luminol-H_(2)O_(2) systems due to the synergistic effect of GDY and AuNPs.Under optimal conditions,the prepared biosensor exhibited a wide linear range from 0.01 g/L to 20 g/L,a satisfactory limit detection of 0.0013 g/L,as well as an excellent specificity.Moreover,we carried out the precise analysis of IMP in actual meat samples with acceptable results compared to the liquid chromatography.We believe that this work could offer an efficient ECL platform for accurate and reliable report of IMP levels,which is significant for maintaining food quality and safety.
文摘通过强度调制光电流谱(IMPS)和强度调制光电压谱(IMVS)技术研究在光电分解水制氢体系中碳点光阳极与KOH电解液界面的动力学行为。结果表明,光强在30–90 m W·cm^(-2)范围内,界面的电子传输时间(τ_d)、电子寿命(τ_n)、电子扩散系数(D_n)、电子扩散长度(L_n)均没有变化;当光强增加到110和130 m W·cm^(-2)时,τ_d和τ_n延长,而D_n减小。实验表明,不同于Ti O_2/电解液等界面,碳点光电极/电解液界面中碳点电极存在的缺陷少,因此电子主要以无陷阱限制扩散方式传输为主。且在30–130 m W·cm^(-2)的光强范围内,与τ_d和τ_n相关的载流子收集效率(η_(cc))相近。
