融媒体视域下探综艺节目管理营销——以《声临其境》为例

在融媒体高速发展的今天,一档优秀节目的传播推广直接决定着节目的收视及受众量等诸多重要数据。《声临其境》以小众主题"声"为卖点,通过节目形式以及播放平台创新等手段,收获了广大观众的注意力,本文以此为例,通过管理学知识分析其营销手段,进而给国内综艺节目发展带来一些启发思考。     

Mn掺杂ZnS量子点的制备及其在生物传感中的应用研究进展

近年来,Mn掺杂ZnS量子点(Mn∶ZnSQDs)由于其优异的光学性能,引起了科学家们的广泛关注。为了解Mn∶ZnSQDs的制备及其应用研究现状,进一步推广Mn∶ZnSQDs在传感分析领域的应用,从Mn∶ZnSQDs的光学特性、制备方法及其在传感分析领域中的应用等方面进行了概述,并对其今后的发展进行了展望。     

Research on image segmentation of Miao costume patterns based on the RSKP-UNet model北大核心CSCD

The Miao nationality is the sixth largest ethnic group in China which has a history of thousands of years. It has created a unique material culture and spiritual culture in its development process and the Miao costume is a highly condensed collection of the material and spiritual culture of the Miao nationality. As one of the unique symbols of Miao culture the Miao costume has profound cultural heritage and cultural connotations. The patterns of the Miao costume are particularly eye-catching as they not only symbolize the wisdom of the Miao people in thousands of years of production and life but also symbolize the pursuit of the good spirit of the Miao people. However under the impact of modern pop culture and foreign culture these cultural symbols are gradually disappearing. In order to protect and inherit them the Miao costume pattern segmentation has become the most important work. However the Miao costume pattern segmentation is quite difficult. At present there are few studies on the extraction classification identification and preservation of the features of Miao costume pattern segmentation. With the excellent segmentation performance of the U-Net model and the advantages of easy deployment the paper improves the basic structure of the U-Net model and proposes a Miao costume pattern segmentation algorithm based on the RSKP-UNet Residual Selective-Kernel Parallel U-Net model. The algorithm adds Residual modules in the encoder part of the U-Net model to improve the feature extraction capability of the model and embeds the SKNet modules and ParNet modules in the decoder part to enhance the feature expression capability of the model. The paper uses evaluation metrics to measure the segmentation performance of the model and compares it with four segmentation models based on deep learning. The paper not only combines the current research focus-deep learning and attention mechanism but also introduces the Lovász-hinge loss function to effectively solve the problem of class imbalance in the Miao costume patterns. The RSKP-UNet model is better than other models in various segmentation indicators. Compared with the benchmark model U-Net the Dice coefficient IoU precision recall and accuracy are improved by 6. 98% 11. 07% 2. 89% 6. 75% and 3. 92% . The segmentation algorithm proposed in this paper realizes the extraction of the element content of the Miao costume patterns through image segmentation of Miao costume patterns which can be used to build the Miao costume pattern database in this way thus helping designers relevant researchers and organizations to provide research foundation and completing the protection and inheritance of the Miao costume culture. The paper also provides some reference for the segmentation research of other minority costume patterns. © 2022 Authors. All rights reserved.     

贵州苗女在绘画艺术中的形象特征

苗族作为中国56个少数民族其中之一,它有自己的语言,服饰、习俗、信仰等。中国的苗族主要分部在贵州、湖南、四川、云南、广西,而贵州的苗族分部在全省各地,黔东南地区苗族居多。中国现当代许多画家都以贵州苗族服饰、风俗、节庆、人文为创作主题,而表现内容大多以描绘苗女为主,例如中国当代油画家张俐的《苗女》系列油画创作,贵州省美术家协会前主席李昂的油画作品《苗女》,董希文的油画作品《苗女赶场》等都淋漓尽致的体现了苗族女性的真、善、美,艺术家们对苗族朴实的生活、节日的祭祀等用苗女的形象来表现,表现苗族对于生活的积极向往。     

醛,2-异丁腈与硝基甲烷的多组分passerini反应

Passerini反应是一类重要的多组分反应,它可以快速的合成许多结构复杂的药物中间体,文章以苯甲醛,2-异丁腈和硝基甲烷为原料,氯化锌为催化剂,在微波作用下,发展新的多组分Passerini反应。     

反胶束体系对甲基橙废水处理效果的研究

以正戊醇和阳离子表面活性剂十六烷基三甲基溴化铵(HTAB)形成的反胶束体系对甲基橙(MO)的去除效果进行研究。同时分析了反应时间,HTAB浓度、pH值和离子强度及种类对去除率的影响。实验发现,反应时间为5 min即可达到平衡;最佳HTAB浓度为0.5 g/L;碱性环境有利于甲基橙的去除;离子强度过高时严重抑制MO的去除,改变阴离子种类对去除率有显著影响。     

（100）应变对正交相Ca2P0.25Si0.75能带结构及光学性质的影响

采用第一性原理赝势平面波方法对（100）应变下正交相Ca2P0.25Si0.75的能带结构及光学性质进行模拟计算.计算结果表明：（100）面在晶格发生100％～116％张应变时,带隙随着应变增加而减小;在晶格发生96％～100％压应变时,带隙随着张应变的增加而增加;88％～96％压应变时,带隙随着压应变的增加而减小;当压应变大于88％后转变为间接带半导体.当施加应变后光学性质发生显著的变化：随着压应变的增加静态介电常数、折射率逐渐减小,张应变则反之.施加压应变反射向低能方向偏移,施加张应变反射向高能方向偏移,但施加应变对反射区域的影响不显著.施压应变吸收谱、光电导率的变化与介电函数和折射率相反.综上所述,应变可以改变Ca2P0.25Si0.75的电子结构和光学常数,是调节Ca2P0.25Si0.75光电传输性能的有效手段.     

MgB2/Mo多层膜的制备与超导性质的研究

本文采用磁控溅射技术(MS)和混合物理化学气相沉积法(HPCVD)在单晶Al₂O₃基底上制备MgB₂/Mo多层膜。通过扫描电子显微镜(SEM)、X射线衍射(XRD)和标准四线法对样品的表面形貌、晶体结构和超导特性进行了测量研究。实验结果表明随着后续MgB₂沉积温度的增加各膜层结晶程度进一步提高,晶粒尺寸不断增大,各自保持着良好的物质稳定性。在730℃温度下生长的MgB₂薄膜的超导转变温度T_con和零电阻温度T_c0分别为39.73K~39.53K,剩余电阻率~0.77μΩcm,表明样品处于干净极限。