In this paper,by utilizing the Marcinkiewicz-Zygmund inequality and Rosenthal-type inequality of negatively superadditive dependent(NSD)random arrays and truncated method,we investigate the complete f-moment convergen...In this paper,by utilizing the Marcinkiewicz-Zygmund inequality and Rosenthal-type inequality of negatively superadditive dependent(NSD)random arrays and truncated method,we investigate the complete f-moment convergence of NSD random variables.We establish and improve a general result on the complete f-moment convergence for Sung’s type randomly weighted sums of NSD random variables under some general assumptions.As an application,we show the complete consistency for the randomly weighted estimator in a nonparametric regression model based on NSD errors.展开更多
An evolution inequality of Sobolev type involving a nonlinear convolution term is considered.By using the nonlinear capacity method and the contradiction argument,the non-existence of the nontrivial local weak solutio...An evolution inequality of Sobolev type involving a nonlinear convolution term is considered.By using the nonlinear capacity method and the contradiction argument,the non-existence of the nontrivial local weak solution is proved.展开更多
目的:对部分D表型孕妇进行免疫血清学和RHD基因型分析。方法:采用常规血型血清学方法鉴定孕妇RhD血型,并进行血型特异性抗体筛查和鉴定;采用序列特异性引物聚合酶链反应(polymerase chain reactionsequence specific primer,PCR-SSP)鉴...目的:对部分D表型孕妇进行免疫血清学和RHD基因型分析。方法:采用常规血型血清学方法鉴定孕妇RhD血型,并进行血型特异性抗体筛查和鉴定;采用序列特异性引物聚合酶链反应(polymerase chain reactionsequence specific primer,PCR-SSP)鉴定孕妇RHD基因型;采用多重连接依赖的探针扩增技术(multiplex ligationdependent probe amplification,MLPA)对孕妇及其配偶和女儿的RhD血型抗原进行基因分型及遗传分析。结果:该孕妇血清中检测出IgG抗-D,其抗体效价为1∶8。PCR-SSP结果显示,该孕妇RHD基因第3-6外显子缺失,经鉴定该孕妇RHD基因型为DVI type 3型。MLPA分析显示,该孕妇只有1条RHD等位基因,且缺失3-6外显子,其基因型为CDVIe/cde,其配偶为CDe/CDe纯合子基因型,女儿为CDe/CDVIe基因型。结论:准确的RhD血型鉴定对制定安全有效的临床输血策略和对育龄妇女采取恰当措施及预防新生儿溶血病具有重要意义。展开更多
目的:基于上皮细胞-间充质细胞转分化(EMT)学说观察化纤Ⅳ号方、艾灸以及二者相配合治疗肺纤维化大鼠Collagen TypeⅢ(Ⅲ-C)和PDGF的变化,探讨其治疗效应及生物学机制。方法:将鼠龄约为6周的SD大鼠随机分为空白组、模型组、化纤Ⅳ号方...目的:基于上皮细胞-间充质细胞转分化(EMT)学说观察化纤Ⅳ号方、艾灸以及二者相配合治疗肺纤维化大鼠Collagen TypeⅢ(Ⅲ-C)和PDGF的变化,探讨其治疗效应及生物学机制。方法:将鼠龄约为6周的SD大鼠随机分为空白组、模型组、化纤Ⅳ号方组、艾灸组、化纤Ⅳ号方与艾灸配合治疗组(简称为"灸药组"),治疗30 d后处死观察其肺组织病理改变,并检测其Collagen TypeⅢ、PDGF的基因和蛋白表达情况。结果:实时荧光定量结果显示:与空白组相比,各组Ⅲ-C和PDGF m RNA表达增高(P<0.05)。与模型组相比,各组的Ⅲ-C和PDGF m RNA表达有明显降低(P<0.01)。而各组中,灸药组疗效最明显,Ⅲ-C和PDGF的表达最低。蛋白免疫印迹法检测结果显示:与模型组相比各组的Ⅲ-C蛋白表达有差异。结论:1艾灸、化纤Ⅳ号方均可减轻博莱霉素诱导肺纤维化大鼠的肺纤维化程度。2艾灸配合化纤Ⅳ号方可减轻博莱霉素诱导肺纤维化大鼠的肺纤维化程度,且其效果优于单用艾灸或单用化纤Ⅳ号方。3艾灸、化纤Ⅳ号方及其二者配合使用不同程度阻抑博莱霉素诱导肺纤维化大鼠肺纤维化进程的效应机制,可能与通过调控其EMT过程中的Ⅲ-C和PDGF表达环节紧密相关。展开更多
利用粉煤灰合成Linde type F(K)沸石吸附重金属Ni2+,探讨吸附剂用量、初始pH、反应温度以及反应时间对Ni2+吸附效果的影响,同时进行吸附等温线和吸附动力学的数据模拟。结果表明,沸石投加量、初始pH以及反应温度均对Ni2+的去除效果影响...利用粉煤灰合成Linde type F(K)沸石吸附重金属Ni2+,探讨吸附剂用量、初始pH、反应温度以及反应时间对Ni2+吸附效果的影响,同时进行吸附等温线和吸附动力学的数据模拟。结果表明,沸石投加量、初始pH以及反应温度均对Ni2+的去除效果影响明显。随着沸石投加量的不断增大,Ni2+去除率不断提高,饱和吸附量逐渐减小。初始pH 7是沸石吸附Ni2+的最适pH。反应温度越高,沸石吸附Ni2+达到平衡的时间越短。沸石对Ni2+的吸附过程符合Langmuir吸附等温式;准一级动力学方程能较好地描述沸石对Ni2+的吸附行为。展开更多
介绍了基于ISO/IEC14443 TYPE B协议的13.56MHz的RFID阅读器的设计。给出了设计的硬件电路和防冲撞算法的软件实现,最后给出了示波器测试的实验结果。本文所用的阅读器芯片为瑞士μEM公司生产的模拟前端集成电路芯片EM4094,微控制器使用...介绍了基于ISO/IEC14443 TYPE B协议的13.56MHz的RFID阅读器的设计。给出了设计的硬件电路和防冲撞算法的软件实现,最后给出了示波器测试的实验结果。本文所用的阅读器芯片为瑞士μEM公司生产的模拟前端集成电路芯片EM4094,微控制器使用了ARM7芯片LPC2104,防冲撞算法使用传统的基于ALOHA的算法。展开更多
为进一步明确Avenin-like type b基因的功能特性,以小麦品种西农188为材料,通过设计简并引物克隆小麦Avenin-like type b基因,对克隆得到的序列进行同源性比对,分析编码蛋白的理化性质、结构特点,结合系统发育树、亚细胞定位预测及结构...为进一步明确Avenin-like type b基因的功能特性,以小麦品种西农188为材料,通过设计简并引物克隆小麦Avenin-like type b基因,对克隆得到的序列进行同源性比对,分析编码蛋白的理化性质、结构特点,结合系统发育树、亚细胞定位预测及结构域分析探讨其可能具有的功能特性,同时对该基因进行体外原核表达及品质功能相关分析。结果表明,从西农188克隆得到4条序列,Genbank登录号为KY794919~KY794922,其中KY794922在信号肽区段碱基缺失导致移码突变。KY794919~KY794921序列与Aveninlike type b家族中大麦、柱穗山羊草、二穗短柄草及节节麦的同源性较高。蛋白序列分析表明,Avenin-like type b编码氨基酸序列具有较高的保守性,其Cys的数目及位置也较为保守,具有两个典型的AAI结构域,推测其可能为一类具有α-淀粉酶抑制剂活性的蛋白。亚细胞定位显示,该类蛋白可能在合成加工后通过运输小泡转运至细胞外行使功能。SDS-PAGE分析表明,KY794919~KY794921体外原核表达成功。通过纯化表达产物及掺粉试验表明,KY794919~KY794921编码蛋白对小麦面粉品质均具有显著正向效应,但仅有KY794919可显著提高面粉吸水量进而延长面筋扩展时间,说明其可能在品质功能研究资源中更具有优越性。展开更多
Two japonica rice varieties, Longjing 20 （more tillers and curved panicle type, MCP） and Longjing 21 （few tillers and half erect panicle type, FEP）, were used to study the effects of row-spacing on canopy structur...Two japonica rice varieties, Longjing 20 （more tillers and curved panicle type, MCP） and Longjing 21 （few tillers and half erect panicle type, FEP）, were used to study the effects of row-spacing on canopy structure, morphological characteristics and yield. The results showed that the percentage of productive tiller reduced first, and increased afterwards as row-spacing increasing. The relationship between row spacing and the percentage of productive tiller fitted a quadratic regression. The effects of row spacing on leaf area index （LAI） at later tillering stage and the highest stem number per square meter also followed a quadratic regression relationship with increasing first and then reducing. The effects of row-spacing on primary branch were larger than the secondary branch in Longjing 20. However, the trend in Longjing 21 was opposite. The relationship between row spacing and seed setting rate of the secondary branch or panicle was negatively correlated. An extreme significant negative correlation was obtained between seed setting rate of secondary branch in Longjing 20. There was no significant positive correlation between row-spacing and yield in Longjing 20 （R2=0.68）. However, the negative correlation between row-spacing and yield of Longjing 21 was extremely significant （R2=–0.96＊＊）. The canopy structure of MCP was more sensitive to row-spacing. The positive correlation between row spacing and the length of the flag leaf （R2=0.89＊＊）, the width of the flag leaf （R2=0.85＊）, the length of the last internode （R2=0.85＊）, the length of the last 2nd internode （R2=0.96＊＊） or the length of the panicle （R2=0.91＊＊） was significant or extremely significant in Longjing 20, but not in Longjing 21. The wider row-spacing promoted the accumulation of the dry matter of panicle, stem and leaf and the yield formation in MCP. The best row-spacing in Longjing 20 was 30 cm. For Longjing 21, the narrower row-spacing was better. The best row-spacing of it was 21 cm. These results suggested that improved the population environment of MCP or the utilization of the free space in the field of FEP could be reached either by wider row-spacing or narrow row-spacing.展开更多
基金supported by the National Social Science Fundation(Grant No.21BTJ040)the Project of Outstanding Young People in University of Anhui Province(Grant Nos.2023AH020037,SLXY2024A001).
文摘In this paper,by utilizing the Marcinkiewicz-Zygmund inequality and Rosenthal-type inequality of negatively superadditive dependent(NSD)random arrays and truncated method,we investigate the complete f-moment convergence of NSD random variables.We establish and improve a general result on the complete f-moment convergence for Sung’s type randomly weighted sums of NSD random variables under some general assumptions.As an application,we show the complete consistency for the randomly weighted estimator in a nonparametric regression model based on NSD errors.
基金Supported by Scientific Research Fund of Hunan Provincial Education Departmen(t23A0361)。
文摘An evolution inequality of Sobolev type involving a nonlinear convolution term is considered.By using the nonlinear capacity method and the contradiction argument,the non-existence of the nontrivial local weak solution is proved.
文摘目的:对部分D表型孕妇进行免疫血清学和RHD基因型分析。方法:采用常规血型血清学方法鉴定孕妇RhD血型,并进行血型特异性抗体筛查和鉴定;采用序列特异性引物聚合酶链反应(polymerase chain reactionsequence specific primer,PCR-SSP)鉴定孕妇RHD基因型;采用多重连接依赖的探针扩增技术(multiplex ligationdependent probe amplification,MLPA)对孕妇及其配偶和女儿的RhD血型抗原进行基因分型及遗传分析。结果:该孕妇血清中检测出IgG抗-D,其抗体效价为1∶8。PCR-SSP结果显示,该孕妇RHD基因第3-6外显子缺失,经鉴定该孕妇RHD基因型为DVI type 3型。MLPA分析显示,该孕妇只有1条RHD等位基因,且缺失3-6外显子,其基因型为CDVIe/cde,其配偶为CDe/CDe纯合子基因型,女儿为CDe/CDVIe基因型。结论:准确的RhD血型鉴定对制定安全有效的临床输血策略和对育龄妇女采取恰当措施及预防新生儿溶血病具有重要意义。
文摘目的:基于上皮细胞-间充质细胞转分化(EMT)学说观察化纤Ⅳ号方、艾灸以及二者相配合治疗肺纤维化大鼠Collagen TypeⅢ(Ⅲ-C)和PDGF的变化,探讨其治疗效应及生物学机制。方法:将鼠龄约为6周的SD大鼠随机分为空白组、模型组、化纤Ⅳ号方组、艾灸组、化纤Ⅳ号方与艾灸配合治疗组(简称为"灸药组"),治疗30 d后处死观察其肺组织病理改变,并检测其Collagen TypeⅢ、PDGF的基因和蛋白表达情况。结果:实时荧光定量结果显示:与空白组相比,各组Ⅲ-C和PDGF m RNA表达增高(P<0.05)。与模型组相比,各组的Ⅲ-C和PDGF m RNA表达有明显降低(P<0.01)。而各组中,灸药组疗效最明显,Ⅲ-C和PDGF的表达最低。蛋白免疫印迹法检测结果显示:与模型组相比各组的Ⅲ-C蛋白表达有差异。结论:1艾灸、化纤Ⅳ号方均可减轻博莱霉素诱导肺纤维化大鼠的肺纤维化程度。2艾灸配合化纤Ⅳ号方可减轻博莱霉素诱导肺纤维化大鼠的肺纤维化程度,且其效果优于单用艾灸或单用化纤Ⅳ号方。3艾灸、化纤Ⅳ号方及其二者配合使用不同程度阻抑博莱霉素诱导肺纤维化大鼠肺纤维化进程的效应机制,可能与通过调控其EMT过程中的Ⅲ-C和PDGF表达环节紧密相关。
文摘利用粉煤灰合成Linde type F(K)沸石吸附重金属Ni2+,探讨吸附剂用量、初始pH、反应温度以及反应时间对Ni2+吸附效果的影响,同时进行吸附等温线和吸附动力学的数据模拟。结果表明,沸石投加量、初始pH以及反应温度均对Ni2+的去除效果影响明显。随着沸石投加量的不断增大,Ni2+去除率不断提高,饱和吸附量逐渐减小。初始pH 7是沸石吸附Ni2+的最适pH。反应温度越高,沸石吸附Ni2+达到平衡的时间越短。沸石对Ni2+的吸附过程符合Langmuir吸附等温式;准一级动力学方程能较好地描述沸石对Ni2+的吸附行为。
文摘介绍了基于ISO/IEC14443 TYPE B协议的13.56MHz的RFID阅读器的设计。给出了设计的硬件电路和防冲撞算法的软件实现,最后给出了示波器测试的实验结果。本文所用的阅读器芯片为瑞士μEM公司生产的模拟前端集成电路芯片EM4094,微控制器使用了ARM7芯片LPC2104,防冲撞算法使用传统的基于ALOHA的算法。
文摘为进一步明确Avenin-like type b基因的功能特性,以小麦品种西农188为材料,通过设计简并引物克隆小麦Avenin-like type b基因,对克隆得到的序列进行同源性比对,分析编码蛋白的理化性质、结构特点,结合系统发育树、亚细胞定位预测及结构域分析探讨其可能具有的功能特性,同时对该基因进行体外原核表达及品质功能相关分析。结果表明,从西农188克隆得到4条序列,Genbank登录号为KY794919~KY794922,其中KY794922在信号肽区段碱基缺失导致移码突变。KY794919~KY794921序列与Aveninlike type b家族中大麦、柱穗山羊草、二穗短柄草及节节麦的同源性较高。蛋白序列分析表明,Avenin-like type b编码氨基酸序列具有较高的保守性,其Cys的数目及位置也较为保守,具有两个典型的AAI结构域,推测其可能为一类具有α-淀粉酶抑制剂活性的蛋白。亚细胞定位显示,该类蛋白可能在合成加工后通过运输小泡转运至细胞外行使功能。SDS-PAGE分析表明,KY794919~KY794921体外原核表达成功。通过纯化表达产物及掺粉试验表明,KY794919~KY794921编码蛋白对小麦面粉品质均具有显著正向效应,但仅有KY794919可显著提高面粉吸水量进而延长面筋扩展时间,说明其可能在品质功能研究资源中更具有优越性。
基金Supported by the National Key Technology R&D Program (2007BAD65B01-4)Science and Technology Development Plan of Heilongjiang Province in China (GB06B104-1-5)Key Technology R&D Program of Heilongjiang Province in China (GA09B102-3)
文摘Two japonica rice varieties, Longjing 20 （more tillers and curved panicle type, MCP） and Longjing 21 （few tillers and half erect panicle type, FEP）, were used to study the effects of row-spacing on canopy structure, morphological characteristics and yield. The results showed that the percentage of productive tiller reduced first, and increased afterwards as row-spacing increasing. The relationship between row spacing and the percentage of productive tiller fitted a quadratic regression. The effects of row spacing on leaf area index （LAI） at later tillering stage and the highest stem number per square meter also followed a quadratic regression relationship with increasing first and then reducing. The effects of row-spacing on primary branch were larger than the secondary branch in Longjing 20. However, the trend in Longjing 21 was opposite. The relationship between row spacing and seed setting rate of the secondary branch or panicle was negatively correlated. An extreme significant negative correlation was obtained between seed setting rate of secondary branch in Longjing 20. There was no significant positive correlation between row-spacing and yield in Longjing 20 （R2=0.68）. However, the negative correlation between row-spacing and yield of Longjing 21 was extremely significant （R2=–0.96＊＊）. The canopy structure of MCP was more sensitive to row-spacing. The positive correlation between row spacing and the length of the flag leaf （R2=0.89＊＊）, the width of the flag leaf （R2=0.85＊）, the length of the last internode （R2=0.85＊）, the length of the last 2nd internode （R2=0.96＊＊） or the length of the panicle （R2=0.91＊＊） was significant or extremely significant in Longjing 20, but not in Longjing 21. The wider row-spacing promoted the accumulation of the dry matter of panicle, stem and leaf and the yield formation in MCP. The best row-spacing in Longjing 20 was 30 cm. For Longjing 21, the narrower row-spacing was better. The best row-spacing of it was 21 cm. These results suggested that improved the population environment of MCP or the utilization of the free space in the field of FEP could be reached either by wider row-spacing or narrow row-spacing.
