Finite p-groups whose non-normal subgroups have few orders

假定 G 是有限 p 组。如果 G 不是一个 Dedekind 集团，那么， G 有非正常的亚群。我们使用 p M (G) 和 p 表示 G 的非正常的亚群的订单的最大值和最小的 m (G) ；分别地。在这份报纸，我们分类集团 G 以便 M (G)< 2m (G) 1：作为一个副产品，我们也分类其非正常的亚群的订单是 p k 和 p k+1 。

Groups with Supersoluble Non-normal Subgroups

The structure of groups in which many subgroups have a certain property X has been investigated for several choices of the property χ.In particular, groups whose non-normal subgroups are supersoluble are studied ia this paper. Moreover, groups with only finitely many normalizers of non-supersoluble groups are considered.

Reliability-based Robust Optimization Design of Automobile Components with Non-normal Distribution Parameters

In the reliability designing procedure of the vehicle components, when the distribution styles of the random variables are unknown or non-normal distribution, the result evaluated contains great error or even is wrong if the reliability value R is larger than 1 by using the existent method, in which case the formula is necessary to be revised. This is obviously inconvenient for programming. Combining reliability-based optimization theory, robust designing method and reliability based sensitivity analysis, a new method for reliability robust designing is proposed. Therefore the influence level of the designing parameters’ changing to the reliability of vehicle components can be obtained. The reliability sensitivity with respect to design parameters is viewed as a sub-objective function in the multi-objective optimization problem satisfying reliability constraints. Given the first four moments of basic random variables, a fourth-moment technique and the proposed optimization procedure can obtain reliability-based robust design of automobile components with non-normal distribution parameters accurately and quickly. By using the proposed method, the distribution style of the random parameters is relaxed. Therefore it is much closer to the actual reliability problems. The numerical examples indicate the following: (1) The reliability value obtained by the robust method proposed increases (】0.04%) comparing to the value obtained by the ordinary optimization algorithm; (2) The absolute value of reliability-based sensitivity decreases (】0.01%), and the robustness of the products’ quality is improved accordingly. Utilizing the reliability-based optimization and robust design method in the reliability designing procedure reduces the manufacture cost and provides the theoretical basis for the reliability and robust design of the vehicle components.

A new early warning method for dam displacement behavior based on non-normal distribution function

Traditional methods for early warning of dam displacements usually assume that residual displacements follow a normal distribution.This assumption deviates from the reality,thereby affecting the reliability of early warning results and leading to misjudgments of dam displacement behavior.To solve this problem,this study proposed an early warning method using a non-normal distribution function.A new early warning index was developed using cumulative distribution function(CDF)values.The method of kernel density estimation was used to calculate the CDF values of residual displacements at a single point.The copula function was used to compute the CDF values of residual displacements at multiple points.Numerical results showed that,with residual displacements in a non-normal distribution,the early warning method proposed in this study accurately reflected the dam displacement behavior and effectively reduced the frequency of false alarms.This method is expected to aid in the safe operation of dams.

Riemann Boundary Value Problem of Non-Normal Type on the Infinite Straight Line

Various kinds of Riemann boundary value problems (BVPs) for analytic functions on closed curves or on open arc, doubly periodic Riemann BVPs, doubly quasi-periodic Riemann BVPs, and BVPs for polyanalytic functions have been widely investigated in [1-8]. The main ap- proach is to use the decomposition of polyanalytic functions and their generalization to transform the boundary value problems to their corresponding boundary value problems for analytic functions. Recently, inverse Riemann BVPs for generalized analytic functions or bianalytic functions have been investigated in [9-12]. In this paper, we consider a kind of Riemann BVP of non-normal type on the infinite straight line and discuss the solvable conditions and the general solution for it.

Non-normal Hasemann Boundary Value Problem

We will discuss the non-normal Hasemann boundary value problem: we may find these results are coincided with those of normal Hasemann boundary value problem and non-normal Riemann boundary value problem.

Doubly Periodic Riemann Boundary Value Problem of Non-Normal Type for Analytic Functions on Two Parallel Curves

In this paper, we present and study a kind of Riemann boundary value problem of non-normal type for analytic functions on two parallel curves. Making use of the method of complex functions, we give the method for solving this kind of doubly periodic Riemann boundary value problem of non-normal type and obtain the explicit expressions of solutions and the solvable conditions for it.

(α,γ)-Anti-Multi-Fuzzy Subgroups and Some of Its Properties

Recently,fuzzy multi-sets have come to the forefront of scientists’interest and have been used in algebraic structures such asmulti-groups,multirings,anti-fuzzy multigroup and(α,γ)-anti-fuzzy subgroups.In this paper,we first summarize the knowledge about the algebraic structure of fuzzy multi-sets such as(α,γ)-anti-multi-fuzzy subgroups.In a way,the notion of anti-fuzzy multigroup is an application of anti-fuzzy multi sets to the theory of group.The concept of anti-fuzzy multigroup is a complement of an algebraic structure of a fuzzy multi set that generalizes both the theories of classical group and fuzzy group.The aim of this paper is to highlight the connection between fuzzy multi-sets and algebraic structures from an anti-fuzzification point of view.Therefore,in this paper,we define(α,γ)-antimulti-fuzzy subgroups,(α,γ)-anti-multi-fuzzy normal subgroups,(α,γ)-antimulti-fuzzy homomorphism on(α,γ)-anti-multi-fuzzy subgroups and these been explicated some algebraic structures.Then,we introduce the concept(α,γ)-anti-multi-fuzzy subgroups and(α,γ)-anti-multi-fuzzy normal subgroups and of their properties.This new concept of homomorphism as a bridge among set theory,fuzzy set theory,anti-fuzzy multi sets theory and group theory and also shows the effect of anti-fuzzy multi sets on a group structure.Certain results that discuss the(α,γ)cuts of anti-fuzzy multigroup are explored.

基于网络群组特征的生态管理分区--以武汉市为例

生态管理分区是维持区域生态安全、实现城市生态差异化治理的重要手段。然而现有分区方法侧重生态功能属性,较少考虑生态斑块之间联系强度差异,忽视了斑块的群组结构。以武汉市为例构建生态网络,从生态系统结构和功能的视角,结合斑块空间组织和斑块联系强弱,运用凝聚子群方法,提取联系紧密的生态组分,将网络划分为异质性群组,基于网络群组特征和生态景观辐射范围进行分区覆盖分析,并进行分区评价。结果表明:(1)86条生态廊道连接研究区34处生态斑块,进一步形成8个生态群组;(2)多数群组内部连通性较好,北部群组之间联系较强,南部群组之间联系相对较弱;(3)依据群组结构功能特征,形成6大网络群组分区,通过与武汉市经济发展规划分区对比,两者具有较高的一致性;(4)城市外围的分区网络稳定性较好,中部稳定性较差,识别分区内13个重要斑块和16条重要廊道,作为重点发展保护对象;(5)综合分区特征将6大分区确立为生态屏障区、生态控制区、生态改善区、生态修复区、生态开发区以及生态保育区,并提出生态发展差异化保护措施。研究将生态功能属性和空间结构属性进行有机关联并制定分区策略,为区域生态管理分区、生态保护规划提供新视角。

ABO基因第7外显子c.539G>C突变致A_(2)B亚型结果分析

目的:探讨ABO基因第7外显子c.539G>C突变致A_(2)B亚型结果分析。方法:采用试管凝集法检测ABO血型,采用Sanger测序法进行基因测序及序列分析。结果:4例先证者红细胞为A弱B表型,根据血清学特征定义为A_(2)B血型,先证者1、3、4血清中无抗-A_(1)抗体;先证者2血清中存在抗-A_(1)抗体;4例血型基因型为ABO^(*)A2.08/ABO^(*)B.01,测序结果与A102基因序列比对,A208在c.467C>T和c.539G>C位发生突变,导致多肽链P156L和R180P替换。结论:α-1,3-N-乙酰半乳糖胺转移酶基因c.539G>C突变产生A208表型。

智能算法的亚群优化策略综述

群智能算法的优化是提升群智能算法性能的一个主要途径,随着群智能算法越来越广泛地运用到各类模型优化、生产调度、路径规划等问题中,对智能算法性能的要求也越来越高。亚群策略作为一种优化群智能算法的重要手段,能够灵活地平衡算法的全局勘探能力和局部开发能力,已经成为群智能算法的研究热点之一。为了促进亚群优化策略的发展和应用,对动态亚群策略、基于主从范式的亚群策略和基于网络结构的亚群策略进行了详细调查,阐述了各类亚群策略的结构特点、改进方式和应用场景。最后,总结了亚群策略目前存在的问题以及未来的研究趋势和发展方向。

参杞强精颗粒对慢性疲劳综合征脾肾阳虚证大鼠免疫调节作用研究

目的:探讨参杞强精颗粒对慢性疲劳综合征(CFS)脾肾阳虚证模型大鼠的影响以及免疫调节作用。方法:将50只无特定病原体(SPF)级健康雄性斯泼累格·多雷(SD)大鼠随机分为正常对照组,模型对照组,参杞强精颗粒高剂量组、中剂量组、低剂量组,采用游泳力竭实验造成大鼠体力疲劳,慢性束缚应激造成大鼠心理疲劳,同时给予番泻叶煎煮液灌胃造成脾肾阳虚证候,构建CFS脾肾阳虚证大鼠模型,造模成功后分别按照各组剂量灌胃,连续给药21 d后,测定各组大鼠的胸腺和脾脏指数,酶联免疫吸附试验(ELISA)检测血清免疫球蛋白G(IgG)、免疫球蛋白M(IgM)、免疫球蛋白A(IgA)浓度以及细胞因子白细胞介素2(IL-2)、白细胞介素6(IL-6)和γ干扰素(IFN-γ)含量,MTT法检测脾脏T、B淋巴细胞增殖能力,流式细胞法检测各组大鼠外周血T淋巴细胞亚群分布情况。结果:行为学结果显示,模型大鼠的体质量增长缓慢,精神萎靡,摄食水量减少,活动减少,便质稀软,力竭游泳时间减少,悬尾静止时间增加。药物干预后,与模型组比较,各给药组大鼠精神状态、体质量、摄食水量均显著改善,力竭游泳时间增加、悬尾静止时间减少(P<0.01或P<0.05);参杞强精颗粒各剂量组能显著提升大鼠胸腺和脾脏指数,提高IgG、Ig M、IgA浓度和IL-2、IL-6、IFN-γ的含量,显著提高脾脏T、B淋巴细胞增殖能力,也能提高CD3+、CD4+T淋巴细胞百分率和CD4+/CD8+T比值,降低CD8+T淋巴细胞百分率,差异有统计学意义(P<0.01或P<0.05)。结论:参杞强精颗粒能显著改善慢性疲劳综合征脾肾阳虚证大鼠免疫功能,缓解疲劳症状,且具有很好的免疫调节作用。

T淋巴细胞亚群和肝功能指标与慢性乙型肝炎患者中医辨证分型的相关性

目的 分析T淋巴细胞亚群和肝功能指标与慢性乙型肝炎(CHB)患者中医辨证分型的相关性,为临床中医辨证分型、治疗方案选择和疗效观察提供科学依据。方法 选取2020年1—12月乐山市中医医院983例CHB患者,其中中医辩证分型实证270例(湿热中阻证75例、瘀血阻络证195例)、虚证713例(肝郁脾虚证662例、肝肾阴虚证28例、脾肾阳虚证23例)。检测各证型患者肝功能相关指标[丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)、总蛋白(TP)、白蛋白(Alb)、总胆红素(TB)、直接胆红素(DBil)]和T细胞(CD3~+、CD4~+、CD8~+)计数,分析各项指标与CHB中医证型的相关性。结果 肝郁脾虚证、瘀血阻络证、湿热中阻证、肝肾阴虚证、脾肾阳虚证临床CHB频率依次升高。CHB各证型中,脾肾阳虚证患者年龄最大,湿热中阻证患者年龄最小。各证型间肝功能相关指标和T淋巴细胞计数差异均有统计学意义(P<0.05);CD3~+、CD4~+T细胞计数与湿热中阻证呈正相关(P<0.05),与脾肾阳虚证呈负相关(P<0.05)。结论 T淋巴细胞亚群和肝功能相关指标与CHB患者中医辨证分型存在相关性,可为临床中医辨证分型、治疗方案选择和疗效观察提供客观依据。

基于PCA-ShapeDTW-QWGRU的分布式光伏集群短期功率预测

针对分布式光伏短期功率预测建立基于主成分分析、改进的动态时间规整算法与量子加权门控循环单元(PCAShapeDTW-QWGRU)的集群功率预测模型。针对集群划分不够精细、光伏电站数据蕴含的信息难以捕捉的问题,提出基于主成分分析结合密度聚类算法(PCA-OPTICS)的集群划分方法;针对目前选取代表电站与集群相似性较低的问题,提出基于改进的动态时间规整算法(ShapeDTW)的代表电站的选取方法,利用ShapeDTW度量相似性距离,选取最小值作为代表电站,并利用基于均方根传播梯度下降法优化的量子加权门控循环单元(RMSprop-QWGRU)模型进行预测;为了解决代表电站与集群功率的变换系数转换差异较大的问题,采用实时变换系数对代表电站进行集群功率值预测计算。实验结果表明,所提方法能有效提升光伏集群功率预测的精度。

关于线性子空间的并集的一个注记

设V是一个线性空间,不考虑V上的数量乘法运算和加法运算满足的交换律,则V构成一个群.给出了一个群V可以写成三个真子群的并集的充分必要条件.

J、K亚群禽白血病病毒的分离和囊膜蛋白(gp85)基因序列分析

为了解现阶段我国禽白血病病毒(ALV)的流行特征和演化趋势,本试验于2021—2022年从国内某鸡场采集蛋清ALV衣壳蛋白(p27)抗原阳性的鸡血浆,接种鸡胚成纤维细胞(DF-1)分离病毒并进行亚群鉴定;采用聚合酶链式反应(PCR)技术扩增分离株的囊膜蛋白(gp85)基因片段,并对其进行测序,将基因序列与ALV不同亚群毒株进行比对和遗传进化分析;选取氨基酸变化差异较大的分离毒株进行间接免疫荧光鉴定。结果显示,共分离到7株ALV毒株(3株J亚群,4株K亚群),ALV-J分离毒株CAU4932、CAU4860和CAU2259的gp 85基因片段长度为918 bp,编码306个氨基酸,分离毒株之间gp 85基因核苷酸同源性为90.5%~95.2%,gp85蛋白氨基酸同源性为95.1%~99.3%;ALV-K分离毒株CAU7049、CAU5006、CAU7176和CAU7168的gp 85基因片段长度为1008 bp,编码336个氨基酸,分离毒株之间gp 85基因核苷酸同源性为89.4%~92.3%,gp85蛋白氨基酸同源性为94.0%~99.7%。gp85蛋白氨基酸序列同源性比对发现,分离株gp85蛋白氨基酸序列均会发生突变,但高变区hr1和hr2所占比例较多,证实了gp85的高变性。在gp85蛋白B细胞抗原表位中存在部分位点的氨基酸突变,可能导致gp85蛋白抗原性发生变化。间接免疫荧光鉴定结果显示,5株分离毒株均可在DF-1细胞内复制并存在可被抗体识别的p27抗原表位。结果表明,本试验分离的7株ALV毒株是国内ALV-J和ALV-K流行毒株的突变株,不仅丰富了ALV基因组库资源,且为后续研究ALV的遗传变异特征和流行趋势等提供参考依据。

董事会群体断裂带与企业并购——基于分类-加工理论视角的研究

从董事会子群体特征的视角出发,基于分类-加工理论,选取2008-2019年间沪深A股上市公司为样本,考察董事会关系型群体断裂带与任务型群体断裂带对企业并购决策以及并购绩效的影响。研究发现:(1)董事会中关系型群体断裂带越强,企业进行并购的可能性越低;董事会中任务型群体断裂带越强,企业进行并购的可能性越高。(2)董事会中关系型群体断裂带越强,企业取得的并购绩效越差;董事会中任务型群体断裂带越强,企业取得的并购绩效越好。(3)董事会成员的平均任期能够减弱董事会关系型群体断裂带对企业并购决策以及并购绩效的消极影响,并减弱任务型群体断裂带对企业并购决策以及并购绩效的积极影响。(4)行业竞争程度能够弱化董事会关系型群体断裂带对企业并购决策以及并购绩效的消极影响,增强董事会任务型群体断裂带对企业并购决策以及并购绩效的积极影响。

E3泛素连接酶FBXL8对A亚群禽白血病病毒复制的影响

【目的】制备鸡E3泛素连接酶FBXL8多克隆抗体,探究鸡源FBXL8对A亚群禽白血病病毒(Avian leukosis virus subgroup A,ALV-A)在鸡胚成纤维细胞(DF-1)内复制的影响。【方法】以DF-1细胞cDNA为模板,通过PCR扩增FBXL 8基因,构建鸡源FBXL8原核表达重组质粒pET-28a-FBXL8,将其转化大肠杆菌表达菌株RIL进行诱导表达及纯化,将表达产物His-FBXL8免疫10月龄新西兰大白兔制备多克隆抗体,利用Western blotting和间接ELISA分别检测抗体特异性及效价;针对已公布的FBXL 8基因序列设计过表达引物及靶向FBXL 8基因的干扰序列,构建过表达质粒psi-flag-FBXL8及干扰质粒pLKO.1-FBXL8-shRNA,使用Western blotting检测其表达效果。将构建成功的过表达质粒和干扰质粒转染DF-1细胞,24 h后感染ALV-A,通过半定量PCR、Western blotting分别检测ALV-A的结构蛋白P27、GP85表达水平。【结果】PCR成功扩增出大小为1182 bp的FBXL 8基因片段,并成功构建FBXL8原核表达重组质粒pET-28a-FBXL8,诱导表达的融合蛋白His-FBXL8大小为43 ku。Western blotting和间接ELISA结果显示,制备的FBXL8兔多克隆抗体可特异性识别外源蛋白,且抗体效价为1∶64000。成功构建了FBXL8过表达质粒和干扰质粒,其在DF-1细胞中能够实现对FBXL8的过表达和敲低。半定量PCR和Western blotting检测结果显示,过表达FBXL8可抑制ALV-A复制,而敲低FBXL8则促进其复制。【结论】本研究制备的FBXL8多克隆抗体具有良好特异性及反应性;在DF-1细胞中,FBXL8负向调控ALV-A复制,研究结果为进一步深入探究FBXL8生物学特性提供了重要参考,并为揭示FBXL8抗ALV-A感染分子机制奠定了基础。

基于CL加密的改进分布式解密系统

近些年,无线医疗传感器网络(Wireless Medicine Sensor Networks,WMSNs)得到了广泛的应用。WMSNs提高了患者护理质量,但同时也存在许多安全隐患。为了保护患者数据的隐私安全,Yi等人提出了一个基于Paillier密码系统的分布式ElGamal密码系统。然而,Rao分析了他们的方案并展示了一种可行的攻击,该攻击允许攻击者获取密钥。因此,是否可以将具有加法同态性质的密码系统修改为安全的分布式解密系统,以实现更简单的分布式密钥生成和更高效的分布式解密仍然是一个挑战。针对上述挑战,该文提出了一种基于Castagnos和Laguillaumie(CL)加密的改进分布式解密系统,并对未知阶群G上的离散对数关系给出了有效的零知识证明。与其他分布式解密系统相比,基于CL加密的改进分布式系统具有良好的性能、更可靠的设置、更高的安全级别。

枯草芽孢杆菌对肉鸡生长性能影响的Meta分析

试验应用Meta分析评估日粮中添加枯草芽孢杆菌对肉鸡生长性能的影响,为枯草芽孢杆菌在家禽生产中的应用提供理论依据。检索收集2017年1月1日至2023年4月1日在中国知网、万方数据库、Web of Science、PubMed等数据库中发表的枯草芽孢杆菌对肉鸡生长性能影响的相关文献,利用Review Manager 5.4和Stata 17进行Meta数据分析、亚组分析及敏感性分析并绘制相关图表。结果表明:在日粮中添加枯草芽孢杆菌,可以显著提高肉鸡的平均日增重(ADG)[SMD=2.02,95%CI(1.49,2.55),P<0.00001]、平均日采食量(ADFI)[SMD=0.57,95%CI(0.08,1.06),P=0.02<0.05],降低料重比(F/G)[SMD=-1.40,95%CI(-2.05,-0.75),P<0.0001]。综上所述,日粮中添加枯草芽孢杆菌可以提高肉鸡的ADG、ADFI,降低F/G,提高生长性能。