A Study on the Remarriage Issues of the Rural Elderly

Our aging process, at the same time, the number of single elderly population is increasing year by year, which makes the elderly remarriage problem becomes more serious. With the acceleration of urbanization process in China, economic development gap between urban and rural areas is widening, resulting in a lot of social problems, of which there are a lot of weak social groups in the cultural and economic level is relatively backward rural areas. Thought to be bound by their material conditions is not high, in the face of social problems even more weak, and they lost even among the elderly also faces remarry rare status quo. Rural elderly remarriage can be resolved related to quality of life and how happy they are old age, so this research will focus on the vast rural areas. After the Rongcheng County of Baoding, Hebei Province and five ordinary village Yixian interviews conducted, combined with a large research literature summed up his own research ideas and research methods. Find out China＇s rural elderly remarriage even lose relevance, problems and influence factors, and the corresponding countermeasures and suggestions： the elderly themselves from both the individual and the external environment to solve. Elderly people to establish a correct view of marriage and spouse, and actively carry out another marriage personal preparation. External environmental needs of the family, society and country in three areas to work together to form a joint force to support the establishment of Trinity molding system from three angles.

Modified Black Widow Optimization-Based Enhanced Threshold Energy Detection Technique for Spectrum Sensing in Cognitive Radio Networks

This study develops an Enhanced Threshold Based Energy Detection approach(ETBED)for spectrum sensing in a cognitive radio network.The threshold identification method is implemented in the received signal at the secondary user based on the square law.The proposed method is implemented with the signal transmission of multiple outputs-orthogonal frequency division multiplexing.Additionally,the proposed method is considered the dynamic detection threshold adjustments and energy identification spectrum sensing technique in cognitive radio systems.In the dynamic threshold,the signal ratio-based threshold is fixed.The threshold is computed by considering the Modified Black Widow Optimization Algorithm(MBWO).So,the proposed methodology is a combination of dynamic threshold detection and MBWO.The general threshold-based detection technique has different limitations such as the inability optimal signal threshold for determining the presence of the primary user signal.These limitations undermine the sensing accuracy of the energy identification technique.Hence,the ETBED technique is developed to enhance the energy efficiency of cognitive radio networks.The projected approach is executed and analyzed with performance and comparison analysis.The proposed method is contrasted with the conventional techniques of theWhale Optimization Algorithm(WOA)and GreyWolf Optimization(GWO).It indicated superior results,achieving a high average throughput of 2.2 Mbps and an energy efficiency of 3.8,outperforming conventional techniques.

用网管的眼光重新体验Windows XP SP2：Widows XP SP2增强体验

安全功能体验 安全功能方面的提高是SP2最值得称赞的地方，它提供了多方面的增强功能。Windows安全中心 进入控制面板，可以发现在这里多出了一个“Windows安全中心”项，在Windows安全中心中提供了防火墙、自动更新和病毒防护三方面的监测（如图1）。

Widowhood Practice in Eastern Nigeria： A Comparative Study of Imo and Anambra States

Marriage is one of the valued institutions in the traditional African society. Incidentally, it has its own challenges. When a young man or woman gets to a certain age and he/she is not married, society frowns at it. Thus, many couples enter into marriage relationships with a lot of excitements and expectations. However, losing one＇s spouse to death robs one of all these excitements and expectations and exposes the bereaved spouse to some dehumanizing challenges. These challenges are mostly experienced by women in the Eastern Region of Nigeria. These women are subjected to dehumanizing practices which are socially accepted in the region. This paper attempts a comparative study of some of the practices imposed on widows in Eastern Nigeria. A sample of 200 participants was purposively selected from two states in the Eastern Region of Nigeria. The study adopted the qualitative research method. Thus, the analysis was made using descriptive method. The study showed that these inhuman traditional practices in Eastern Nigeria are initiated and perpetrated by the kinsmen （Umunna and Umuada）. It also showed that the widowhood treatment is meted out on all widows, but the severity or less severity of these treatments are dependent on the socio-economic and other attributes of the widow. Finally, recommendations were made, which include the need to protect the fundamental rights of widows and their children.

Black Widow Optimization for Multi Area Economic Emission Dispatch

The optimizationfield has grown tremendously,and new optimization techniques are developed based on statistics and evolutionary procedures.There-fore,it is necessary to identify a suitable optimization technique for a particular application.In this work,Black Widow Optimization(BWO)algorithm is intro-duced to minimize the cost functions in order to optimize the Multi-Area Economic Dispatch(MAED).The BWO is implemented for two different-scale test systems,comprising 16 and 40 units with three and four areas.The performance of BWO is compared with the available optimization techniques in the literature to demonstrate the strategy’s efficacy.Results show that the optimized cost for four areas with 16 units is found to be 7336.76$/h,whereas it is 121,589$/h for four areas with 40 units using BWO.It is also noted that optimization algo-rithms other than BWO require higher cost value.The best-optimized solution for emission is achieved at 9.2784e+06 tones/h,and it is observed that there is a considerable difference between the worst and the best values.Also,the suggested technique is implemented for large-scale test systems successfully with high precision,and rapid convergence occurs in MAED.

The Influence of Chinese Boudoir Poem on American Modernist Poet Williams’The Widow’s Lament in Springtime

Chinese poetry has exerted a great influence on American modernist poets,especially on William Carlos Williams(1883-1963).William Carlos Williams’The Widow’s Lament in Springtime shares some connections with Chinese Boudoir poems in theme,image,and technique.This paper tends to discuss the influence of Chinese Boudoir poems on William Carlos Williams based on his creating of The Widow’s Lament in Springtime,which provides a new perspective for studying the communication of Chinese and American poetry.

基于特征融合和B-SVM的鸟鸣声识别算法

为了实现在野外通过低成本嵌入式系统识别鸟类,提出了基于特征融合和B-SVM的鸟鸣声识别方法。对鸟鸣声信号提取梅尔频率倒谱系数、翻转梅尔频率倒谱系数、短时能量和短时过零率组成特征参数,通过线性判别算法对特征参数进行特征融合。利用黑寡妇算法通过测试集对支持向量机模型的核参数和损失值进行优化得到B-SVM模型。利用Xeno-canto鸟鸣声数据集对本文算法进行了测试,结果表明该方法的识别准确率为93.23%。算法维度参数的大小和融合特征维度的高低是影响算法识别效果的重要因素。在相同条件下,文中所提的基于特征融合和B-SVM模型的鸟鸣声识别算法相较于其他特征参数和模型,识别的准确率更高,为野外鸟类识别提供了参考。

融合GBWO与ENN的人体尺寸预测模型

为了提高人体尺寸预测的效率和准确性,该文提出了GBWO-ENN(Grey Black Wolf Optimization-Elman Neural Network)的方法。针对传统灰狼算法易于陷入局部最优和无法平衡全局与局部搜索的平衡性问题,提出了GBWO算法。该算法融合黑寡妇优化算法中蜘蛛的运动方式对灰狼优化算法中α狼位置更新进行了优化,通过非线性递减的方法降低了收敛系数,并且提出了按位置等级更新种群的策略。随后采用GBWO算法对Elman神经网络的权值和阈值进行优化,并将GBWO-ENN模型应用于三维人体尺寸预测。实验结果表明,GBWO-ENN模型结构简单,能够准确预测人体尺寸,具有较好的预测能力。

丧偶老人生命意义感的影响因素研究——基于结构方程模型的实证分析

目的了解丧偶老人生命意义感的现状,构建丧偶老人生命意义感的影响因素模型。方法采用整群抽样法,使用生命意义感量表、社会支持量表、社会参与量表和基本心理需求量表对湖南省岳阳市岳阳楼区16个社区和湖南省华容县16个村的836例丧偶老人进行横断面调查,采用结构方程模型分析丧偶老人生命意义感的影响因素及作用路径。结果丧偶老人生命意义感的得分为34.56±7.38,社会支持得分为25.22±5.97,社会参与得分为12.96±3.48,基本心理需求得分为71.35±14.26。结构方程模型结果显示:相关因素对丧偶老人生命意义感的解释度为59.5%。社会支持、社会参与、基本心理需求对生命意义感有直接效应(效应值分别为0.23、0.24、0、49,P<0.001)。基本心理需求在社会支持与生命意义感的间接效应为0.19(P<0.001),在社会参与与生命意义感的间接效应为0.11(P<0.001),该模型拟合效果良好。结论丧偶老人的社会支持、社会参与、基本心理需求对丧偶老人生命意义感具有正向预测作用;基本心理需求在社会支持、社会参与与生命意义感之间存在部分中介作用。

知行易径理论视域下丧偶老人心理健康服务模式研究

随着人口老龄化的进程加快,丧偶老人的数量也与日俱增,其心理健康问题日益突出,普遍存在孤独感强烈、难以适应角色等问题。本研究基于知行易径理论构建丧偶老人心理健康服务模式,从生理、动机、认知、情绪、行为与环境六个领域先评估丧偶老人的需要,进而界定干预目标,构建干预措施,使其有效地达到个体的生活目标,提升丧偶老人生活质量,为探索丧偶老人社会生活重建路径提供参照。

含分布式电源选址定容的配电网重构双层规划

针对大量分布式电源接入配电网带来的诸多不利影响,文中提出一种综合考虑分布式电源选址定容和配电网重构的双层规划模型.上层以DG投资的年综合成本最小,进行分布式电源的选址定容,下层以有功网损最低,进行配电网重构.同时,引入黑寡妇算法对模型进行求解.首先,采用二维混沌映射进行种群初始化,以增加种群的多样性;其次,引入自适应变化的生殖率和兄弟姐妹相食率,以减少后期算法收敛的时间;最后,引入变异算子,增加种群突变的概率,以帮助算法跳出局部最优并寻求全局最优解.通过仿真验证,文中所提出双层规划模型能显著降低网损,提高电压质量;而改进后的黑寡妇算法在收敛速度和精度方面都表现出更优异的性能.

基于改进LSTM-AdaBoost的铣刀磨损量预测

针对铣刀磨损量预测时精度低的问题,提出一种基于黑寡妇算法(BWO)优化的长短期记忆神经网络(LSTM)与AdaBoost集成学习算法相结合的铣刀磨损量预测方法。在铣刀磨损振动信号中提取时域、频域以及时频域多域特征。通过BWO算法优化LSTM的核心参数,并将优化后的LSTM网络与AdaBoost算法进行结合,构建铣刀磨损量预测模型。最后用PHM Society 2010铣刀全寿命周期的振动数据进行实验。研究结果表明:所提方法能够有效地预测出铣刀磨损量变化值,优化后模型的平均绝对误差百分比为3.436%、均方根误差为6.471、决定系数R^(2)为0.935。该方法能够获得准确率更高的铣刀磨损量预测值,预测效率更高。

我国丧偶老年人社会参与对健康的影响研究

目的:探讨我国丧偶老年人社会参与对健康的影响。方法:基于2018年中国老年健康影响因素跟踪调查纳入6296个样本,利用普通最小二乘法和工具变量-两阶段最小二乘法实证分析我国丧偶老年人社会参与对健康的影响。结果:社会参与改善了丧偶老年人生理健康和心理健康状况。以“是否拥有房屋产权”“社区是否组织社会或娱乐活动”作为社会参与的工具变量进行内生性检验,结果显示,丧偶老年人社会参与对生理健康和心理健康仍存在正向影响。更换健康指标,证实结论具有稳健性。结论:在积极应对人口老龄化过程中应积极鼓励丧偶老年人参加社交活动,并根据丧偶老年人特征制定详细、差异化方案,为丧偶老年人参加社会娱乐活动创造客观条件。

AMicroseismic Signal Denoising Algorithm Combining VMD and Wavelet Threshold Denoising Optimized by BWOA

The denoising of microseismic signals is a prerequisite for subsequent analysis and research.In this research,a new microseismic signal denoising algorithm called the Black Widow Optimization Algorithm(BWOA)optimized VariationalMode Decomposition(VMD)jointWavelet Threshold Denoising(WTD)algorithm(BVW)is proposed.The BVW algorithm integrates VMD and WTD,both of which are optimized by BWOA.Specifically,this algorithm utilizes VMD to decompose the microseismic signal to be denoised into several Band-Limited IntrinsicMode Functions(BLIMFs).Subsequently,these BLIMFs whose correlation coefficients with the microseismic signal to be denoised are higher than a threshold are selected as the effective mode functions,and the effective mode functions are denoised using WTD to filter out the residual low-and intermediate-frequency noise.Finally,the denoised microseismic signal is obtained through reconstruction.The ideal values of VMD parameters and WTD parameters are acquired by searching with BWOA to achieve the best VMD decomposition performance and solve the problem of relying on experience and requiring a large workload in the application of the WTD algorithm.The outcomes of simulated experiments indicate that this algorithm is capable of achieving good denoising performance under noise of different intensities,and the denoising performance is significantly better than the commonly used VMD and Empirical Mode Decomposition(EMD)algorithms.The BVW algorithm is more efficient in filtering noise,the waveform after denoising is smoother,the amplitude of the waveform is the closest to the original signal,and the signal-to-noise ratio(SNR)and the root mean square error after denoising are more satisfying.The case based on Fankou Lead-Zinc Mine shows that for microseismic signals with different intensities of noise monitored on-site,compared with VMD and EMD,the BVW algorithm ismore efficient in filtering noise,and the SNR after denoising is higher.

四路开亲:清至民国时期清水江文书所见习惯法对婚姻纠纷的调解

“四路开亲”作为清水江婚姻文书中对女性“再嫁自由”的意思表示,是书写在民间契约上的习惯法。在四路开亲“首倡者”“和倡者”及“止倡者”三者的互联互动下,一种多元反复的动态婚姻秩序得以展现。尤其是女性“再嫁自由”所受桎梏明显:一为女性在四路开亲缘由中相对被动;二为四路开亲决议成立前,女性需基于一定方式,在中人的商劝下就彩礼回流及自由立契等内容达成一致才可获四路开亲权利;三为四路开亲决议成立后,在习惯法的传统规制、强烈威慑或和合调息下,女性只能以或顺从、或博弈、或调适的行为,获得再嫁的相对自由。

包拯孝行精神的地方性传承——以文成县珊溪镇街头村为例

包拯谥号“孝肃”,原本有“孝”与“肃”两个维度。传统社会几乎只是单向发展了“肃”的维度,包公成了清官的代表。在当下新的社会语境下,孝维度的价值愈发突出,浙江温州文成县珊溪镇街头村所提倡的孝文化是对包公文化的地域性创用,可谓优秀传统文化创造性转化的实践,促进了代际和谐。此外,包氏后裔包学冠还设立“再婚奖”,鼓励老年人再婚,通过婚前财产互不干涉、百年之后遗体与原配合葬等协议,解决各方的后顾之忧。街头村老年人再婚,其基本定位是孝行的延伸,其基本模式是分别丧偶的老人的组合,而非代际婚姻,其“通过婚姻的养老”是一种来自子女与社区的合力,对当下老龄化社会越来越多的孤寡老人问题作出了有建设性意义的回答。

从魏晋“寡妇赋”论代言体赋

魏晋时期以“寡妇赋”为题的赋作首次以赋体形式为寡妇代言,具有十分特殊的意义。前代文学中或有涉及寡妇的题材,而用赋体形式代寡妇立言实是魏晋文人首创。这些“寡妇赋”以刻画嫠妇的情感生活为主线,借萧瑟凄清的景物铺排渲染,但各家之作各有特点。从“寡妇赋”的创作出发,可钩稽代言赋体这一文学形式在赋体、诗体方面的文学意义。

基于改进黑寡妇算法的海上风机塔筒生产线布局优化

为减少海上风机塔筒生产车间的物资搬运距离并提高搬运效率,降低生产车间的物流成本,分析塔筒生产线的特点和存在的问题,包括生产工位配置不合理、物流繁琐等,提出一种基于改进黑寡妇算法的生产线布局优化方法,旨在通过最佳的生产工位配置和物流规划,实现生产线的高效运转。将新方法与遗传算法、和声算法以及原始黑寡妇优化算法等进行对比试验,结果表明,所提出的布局优化方法能够显著提高海上风机塔筒生产线的生产效率并降低物流成本,对促进海上风机生产效能的提升具有一定的指导意义。

困境书写与情感关切——论中国“孤儿寡母”文学形象的叙事策略

“孤儿寡母”是典型的弱势群体形象,它跨越时代,广泛存在于中国的文学作品之中,却并未受到学界的广泛关注。围绕不同的表现主题,“孤儿寡母”形象的塑造具有多种叙事策略:通过弱势群体的苦难与毁灭来鞭笞时局,隐喻文化症候;以父性缺失为中心,关注非完整家庭的畸形情感依附问题;以生育意义的确证为切入点,探讨女性自身价值与母性的内在冲突;以多代人的“代沟”分歧为表象,映射出家庭纷争背后的时代矛盾。“孤儿寡母”文学形象具有得天独厚的悲剧美感,缕析其构建策略,对观照底层群众的生存困境与情感问题都具有一定的现实意义。

基于改进蛇优化算法的WSN覆盖优化研究

为解决无线传感器网络中节点随机部署易出现分散不均、低覆盖率等问题,提出一种改进蛇优化算法的WSN覆盖优化算法。首先,使用Circle映射种群初始化增强种群的多样性,并在蛇的探索阶段使用自适应螺旋搜索算法增大搜索范围。其次,通过引入黑寡妇算法中的信息素解决蛇的开发阶段易陷入局部最优解,并使用差分进化策略提高寻优的能力。最后,将改进蛇优化算法应用到传感器节点的部署中,利用传感器的覆盖模型确定最大的覆盖率。实验表明,改进后的算法能有效提升节点覆盖率,扩大WSN覆盖范围,从而减少节点能耗并延长网络寿命。