Subjects: Library Science，Information Science >> Philology submitted time 2020-05-28
Abstract： [Purposes] A comprehensive understanding of the degree of open access (OA) of academic journals in physics, and the quality of OA papers. Exploring the quality-evaluation methods based on cited OA papers. [Methods] Using statistical principles and bibliometrics methods, 348 physics journals in web of science (WoS), were studied, according to their number of papers and citation collected within 2 years. A comparison and correlation analysis of 9 indicators of about OA proportion of which including OA paper, OA journals, citation of OA paper, as well as acceptability of OA journals, were carried out for the whole physics discipline and 8 branch areas. [Findings] There are 39 OA journals in the whole discipline, accounting for 11.21% of the total journals. The total opening rate and citation rate of OA papers are 28.37% and 35.95%, respectively. The contribution of OA journals to the opening rate and citation rate is 30% and 23.99%, respectively. The opening percentage of high cited papers is 41.87%, and its contribution percentage for citation is 40.56%. OA papers were cited as 4.35 per paper. In eight branch areas, the intervals of mean value of Journals Acceptability (JA) of their journals and OA journals, are {962,301} and {1032,50} respectively. [Conclusions] Empirical analysis shows that : 1)The majority of OA papers come from hybrid- journals. For condensed matter physic, its OA level is much less than the scale of its journal publish. Regarding the OA tactics of high- cited papers, we did not find that they were priority, neither biased. Therefore, increasing the percentage of open access of high- cited papers can be a strategy to improve the quality of OA. 2) OA ratio of Journals and papers , as well the contribution ratio of OA journals can be used as an evaluation index for the degree of openness. The citation ratio of OA papers, the OA ratio of high cited papers, and the average citation per paper in OA journals can be used as indexes for evaluating the quality of OA. 3) The publication volume (PV)of OA journal and the percentile of the journal’s PV can be used for the journal acceptability analysis. "
Peer Review Status:
Awaiting Review
Subjects: Library Science，Information Science >> Utilization of Information submitted time 2019-06-27
Abstract： This paper expounds the value orientation and essential connotation of knowledge service in the new information and knowledge environment, and its significance to the transformation of university libraries. This paper analyzes the essential difference between knowledge service and ubiquitous subject service from the perspective of university libraries, and the barriers that university libraries should break through in terms of cognition, theory and practice in order to carry out knowledge services more deeply. It is pointed out that knowledge product is an important form of knowledge service, and the level of knowledge product is the direct embodiment of the library's core value and ability. In addition, this paper gives a clear and systematic explanation and description of the concepts, attributes, types and production principles of knowledge products from a theoretical point of view.
Peer Review Status:Awaiting Review
Subjects: Library Science，Information Science >> Philology submitted time 2018-09-27
Abstract： " [Purposes ] By analyzing the distribution of citations of papers for academic journals, we present the identification of a less-citation region of each journal and the method of its evaluations. [Methods]By taking SCI Expanded data of 65 condensed matter journals (CMJ) with a period of 5 years, we have systematically studied the features of the citation distribution for each journal, which are made for those papers in h-index core，or with the citation number less than the citation per paper (Cipp) for a given journal. In addition, we also analyze the feature of the citation distributions in the regions where the accumulation citations are respectively five, ten and twenty percent of the total citations T, for a given journal. Based on these analyses, we identify an appropriate and reasonable less-citation region for each journal. [Findings] First, the ratio for zero citation for each journal is very low, about10%T, so that CMJ can be considered as a set of high-quality journals. Secondly, the range for the cumulated number of those less citations equal to 20%T as well as the citations of papers below Cipp can be statistically used together to define as a less-citation region. Third, there is only very weak correlation between the traditional evaluating parameters such as impact factor IF, h-index, Cipp, the total number of the citable papers and the total citation，and the new set of the parameters including rN0, less-citation ration（RLC，rN x）and the density of the less citations（DLC，rTcix）. [ Conclusions] Frist, the new set of the parameters Evel {rN0, rNx, rTcix} defines a composite index for the evaluation of less citations, while the composite index Evel {h，Ci20%，Cicipp，Cih} corresponds to the three regions, characterizing the configurations of citation distribution of journals. Secondly, the distribution of citations possibly can be cluster analyzed on configuration. For each journal, the less-citation evaluation should be properly done on the basis of the systematic analyses on the distribution of the citations. Multiple dimensional evaluations can provide reliable global evaluation on each journal.
Peer Review Status:Awaiting Review
Subjects: Library Science，Information Science >> Library Science Subjects: Other Disciplines >> Synthetic discipline submitted time 2025-06-03
Abstract： The application of Sora in the field of education presents both opportunities and challenges. On one hand, Sora has the potential to empower education to return to its core purpose of nurturing individuals: it can rectify the alienation of education, enrich personalized education, and visualize both teaching and learning. On the other hand, Sora may undermine the systematic nature of school education, leading to mediocrity in education, causing educational chaos, and triggering crises in schools. In the context of artificial intelligence (AI) being fully integrated into education, while emphasizing the innovative applications of Sora in the educational field, it is also necessary to avoid its drawbacks as much as possible by proposing scientific and reasonable countermeasures: innovating educational philosophies, upgrading educational activities, and enhancing the capabilities of teachers and students, in order to promote the harmonious development of AI and education.
Peer Review Status:Awaiting Review
Subjects: Nursing >> Nursing submitted time 2023-09-25
Abstract： This article summarizes the nursing experience of a patient undergoing oral vestibular endoscopic thyroidectomy, including preoperative visits, intraoperative cooperation, postoperative care, and surgical cooperation. Endoscopic thyroidectomy via oral vestibular approach through oral endoscopy has advantages such as less bleeding, small incision, fewer complications, safety, and convenience; Moreover, this surgery avoids surface scars and has obvious cosmetic advantages. At the same time, nurses take good psychological care, accurately transfer instruments, and strictly aseptic procedures are crucial for the smooth completion of the surgery
Peer Review Status:Awaiting Review
Subjects: Dynamic and Electric Engineering >> Engineering Thermophysics submitted time 2017-10-17 Cooperative journals: 《工程热物理学报》
Abstract：本文采用平衡分子动力学方法研究了纳米流体中固体颗粒周围的吸附层厚度及结构,并通过Green-Kubo原理计算了吸附层内导热系数的分布。研究表明,纳米颗粒周围存在0.5 nm厚的吸附层,层内原子数密度提高了50%~60%,导热系数提高了200%~300%。分析发现,吸附层导热系数的提高是由于原子数密度及吸附层内原子排列有序程度的提高引起的。该研究结果有望为建立合理的预测纳米流体的导热系数模型提供关键参数及理论指导。
Subjects: Geosciences >> Geography submitted time 2025-02-27 Cooperative journals: 《干旱区地理》
Abstract：防沙治沙是我国当前“三北”工程建设的主攻方向，是筑牢西部生态安全屏障的重要举措。为推进防沙治沙关键技术研究，支撑荒漠化综合防治和“三北”等重点生态工程建设，基于Citespace软件及传统文献归纳方法，梳理了三北工程实施45 a来我国防沙治沙研究成果，对防沙治沙研究文献总体特征、热点演变、存在问题与研究不足等进行了分析。分析发现：（1）防沙治沙相关的中英文发文总量持续增长，国际影响力逐渐增强，研究具有多学科、交叉性等特点。（2）近45 a来经历了1978—2000、2001—2012、2013—2023年3个时段的演变，一阶段重点关注土地沙漠化成因、土地退化动态的辨识；二阶段重点关注人工固沙造林等人类行为活动对防沙治沙所产生的成效评价；三阶段重点关注产业化治沙和自然修复等实现沙化土地治理的可持续发展研究。（3）研究内容主要包括了土地沙漠化驱动因素及其机理、治理措施与模式、政策与法律法规、防沙治沙理念演变4方面。（4）当下的研究面临着流沙快速固定、治沙新材料新技术新模式、生物多样性保护、生态服务功能价值化、沙产业发展、政策机制等方面的问题，未来需要从土地利用及其设计、治沙装备研发、沙产业与生态产品开发、政策机制完善、治沙关键技术创新和推广等多方面进行探索。
Subjects: Library Science，Information Science >> Library Science submitted time 2023-08-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] By investigating the situation of university libraries' literature guarantee to the 2011 Collaborative Innovation Centers, this paper provides some suggestions to improve the libraries' guarantee work, which can be benefit for the development of Collaborative Innovation Centers. [Method/process] Taking Wuhan University as an example, we counted the citation information of Chinese journal articles published by the three 2011 Collaborative Innovation Centers, which are initiated or built by Wuhan University. Then, we generalized the citations' characteristics though data analysis, and compared the citations with Wuhan University library's collection resources. Finally, based on the above work, we figured out the literature guarantee situation of Wuhan University library for those three centers. [Result/conclusion] In order to improve the effectiveness of literature guarantee for Collaborative Innovation Center, university libraries should explore collaborative guarantee mechanism, value the construction of special resources, enhance the discoverability of libraries' collection resources, and take use of open access resources and so on.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] With the quickly development of science and technology and the coming of the era of big science, there are more and more scientific research cooperation and co-authored research papers, which is urgent to evaluate and distribute the contribution of coauthor in order to reduce the friction between researchers and promote scientific research.[Method/process] By systematically reviewing the relevant research literatures and surveying the practice of the famous academic journals, this article illustrated the development process of the author's contribution statement and analyzes the relationship between key elements of author's contribution and the order of authorship as well as the function and shortcoming of author contribution computation solutions existed. Based on the author's contribution statement and the degree of author's participation in each contributing element, this paper constructed the new measurement method of coauthor contribution rate.[Result/conclusion] The new method can improve the traditional measurement method of coauthor contribution rate and promote the academic influence evaluation from the unit of a fully paper to the contribution element of each author in a co-authored research paper.
Subjects: Geosciences >> Geography submitted time 2023-06-28 Cooperative journals: 《干旱区地理》
Abstract：基于Web of Science（SCI）和知网（CNKI）数据库中以耕地撂荒为研究主题的文献数据，借助CiteSpace软件对19902021年耕地撂荒领域的研究论文进行数据挖掘和定量分析（数据更新时间为2022年3月20日），对国内外耕地撂荒领域的论文数量、引文数量、主要作者、相关学术期刊和关键词进行系统梳理和对比研究，进而探讨中国耕地撂荒未来的研究方向。结果表明：（1）在过去近32 a，关于耕地撂荒的论文数量有所增加，国内外学者对耕地撂荒的关注不尽相同，国内外耕地撂荒研究发展历程存在差异，各阶段的研究重点不尽相同。（2）耕地撂荒、撂荒地、土地利用、景观、碳汇、土壤退化是近年来耕地撂荒领域的高频关键词。（3）国内耕地撂荒领域的研究热点主要集中在耕地撂荒的形成原因、影响因素等研究方向，国外的研究更多是研究群落多样性和农田景观动态等方面。（4）国内外学者的研究大多集中于小尺度上耕地撂荒的成因、机制、影响、建议等方面，在大尺度上的研究较少，就遥感、大数据、网络数据模拟、动态监测等方面的研究仍然缺乏。本研究建议以后的研究应基于全球视野，进一步系统深入地探索耕地撂荒内容、成因、演变机理和影响，同时充分利用人工智能技术检测和获取耕地撂荒的时空动态，尝试林草一体化高质量发展等农业模式，以便为治理撂荒制定合理、有效的措施。
Subjects: Medicine, Pharmacy >> Preclinical Medicine submitted time 2022-09-05 Cooperative journals: 《中国全科医学》
Abstract： Background MNGS technology has been widely used in the detection of difficult,critical and special pathogens due to its wide coverage, rapid, high sensitivity and no deviation.Although it has a broad application prospect,there are still some problems that background bacteria,contaminating bacteria,colonizing bacteria and pathogenic bacteria cannot be clearly defined.At present,there are few papers to judge the cut-off value between colonization and infection of pneumocystis jiroveci(PJ) sequence detected by mNGS.Objective To investigate the values of alveolar lavage fluid mNGS technique and serum G test in judging infection or colonization of PJ and their correlation.Methods The data of 40 patients with pulmonary infection in Hubei NO.3 people's hospital from September 2018 to May 2022 whose PJ sequence numbers were detected by alveolar lavage fluid mNGS technology were collected and analyzed retrospectively.They were divided into two groups according to whether to anti-PJ treatment:PJ infection group (n=21) and colonization group(n=19).The clinical characteristics,serum G test and mNGS sequence between the two groups were observed.The values of serum G test and mNGS sequence in judging PJ infection or colonization were analyzed,the cut-off value was obtained, and the correlation was compared.Results There were no significant differences between the two groups in general information,basic diseases and clinical symptoms(P>0.05).The use of glucocorticoids or immunosuppressants was more prevalent in the PJ infection group than the colonization group,the difference was statistically significant (P<0.05).There were no significant differences between the two groups in imaging characteristics such as consolidation,nodules,pleural effusion and cystic changes (P>0.05).The changes of ground glass exudate shadow and interstitial in PJ infection group were significantly more than the colonization group, and the differences were statistically significant (P<0.05).There were no significant differences between the two groups in the number of blood white cells,neutrophils,lymphocytes,PCT,CRP，LDH and PaO2/FiO2(P>0.05).The number of CD4+T cells in the PJ infection group was significantly lower than the colonization group, while serum G test and mNGS sequence were significantly higher than the colonization group,the differences were statistically significant(P<0.05).ROC curve showed that the best thresholds for mNGS sequence and serum G test to distinguish infection or colonization were 24 and 106.7pg/ml,AUC values were 0.95 and 0.89,sensitivity were 95.2% and 76.2%, specificity were 78.9% and 89.5%,respectively.Spearman's correlation result showed that mNGS sequence was positively correlated with serum G test(R=0.769,P <0.001).Conclusion Combined with immunodeficiency,especially the use of glucocorticoids or immunosuppressants,imaging findings show typical ground-glass exudation and interstitial changes,and the number of peripheral blood CD4+T cells decreases,especially<200/ul.If blood G test and PJ sequences detected by mNGS increase significantly,≥106.7pg/ml and 24,respectively.It is helpful for the diagnosis of PJ infection.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2019-01-28 Cooperative journals: 《计算机应用研究》
Abstract： Aiming at the problem that lightweight deep neural network MobileNet can reduce classification accuracy, this paper proposed an D-MobileNet (dilated convolution MobileNet) model based on local receptive field expansion by introducing dilated convolution kernel into a convolution layer of MobileNet model. The models consisted of three structures according to the location of the dilated convolution kernel. Without increasing the number of parameters, it could expand the local receptive field of the layer convolution kernel and improve the classification accuracy. This paper carried out the experiments on Caltech-101 database, Caltech-256 database and Uebingen animals with attributes database. The results show that the D-MobileNet model can achieve better classification accuracy than that of MobileNet, and can improve the classification accuracy by up to 2%.
Subjects: Biology >> Ecology submitted time 2018-03-30 Cooperative journals: 《生态学报》
Abstract：城市群作为推进国家新型城镇化的战略举措，是国家参与全球竞争与国际分工的主要地域单元。以中国典型城市群6个代表性城市（北京、天津、上海、广州、武汉和重庆）为案例，采用因素分解法将碳排放的影响效应分解为4部分，包括人口规模效应、经济发展效应、能源强度效应和碳强度效应，研究2000-2014年城镇化过程中碳排放的驱动机制。主要结果：（1）各城市群的经济总量均有增长，能源效率逐渐提高，碳排放强度在北京、上海和重庆的是下降趋势，在天津呈上升趋势，而在广州和武汉则趋于平稳状态，各城市群能源消耗中各种能源的比重和碳排放量的变化存在着较显著的差异性；（2）天津和广州的4个碳排放影响效应整体上是逐渐增大，北京和上海是趋于平稳对称，武汉和重庆是先减小后增大。研究表明，经济和人口对碳排放具有正向作用，能源强度对碳排放具有负向作用。通过研究中国典型城市群碳排放的驱动因子，有助于城市群碳排放权交易的政策制定以及城市群发展模式规划。
Subjects: Dynamic and Electric Engineering >> Engineering Thermophysics submitted time 2017-10-17 Cooperative journals: 《工程热物理学报》
Abstract：本文数值研究了肋片和凹槽共同作用下矩形通道内的流动与换热特性,分析了肋片高度沿展向的分布情况对通道热力性能的影响。文中选取了五种肋片结构,它们具有不同的高度分布和相同的横截面积,从结构1到结构5,肋片中心高度逐渐增加,其中结构3的肋片具有均匀的高度分布。研究结果表明:高度沿展向分布不均匀的肋片会产生反向旋转的涡对,这些涡对能够卷吸主流中心冷却空气输送到高温壁面,同时吹扫凹槽内的低速热空气,增加凹槽近壁面处的气流速度,从而强化加热面的换热性能;并且,肋片高度沿展向变化越大,旋涡结构越强,强化换热效果越显著;肋片中心高度最高的结构5提供了最大的努塞尔数、摩擦因子以及热力性能因子。
Subjects: Library Science，Information Science >> Library Science submitted time 2023-08-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] This article analyzes the characteristics and differences of literature demands among domestic and international interdisciplinary researchers, in order to provide a basis for the literature guarantee of interdisciplinary research and to promote cooperation in international interdisciplinary researches.[Method/process] This article analyzes the characteristics and differences in domestic and international research over the issue of the South China Sea dispute from the aspects of age distribution, citation frequency, subject distribution and publishing institution by using citation analysis. Journals and books cited in the related articles in CSSCI and Web of Science from 1998 to 2016 are samples in this research.[Result/conclusion] The domestic researchers have a high degree of dependence on new Chinese journals and classic foreign books, Chinese books lack of international recognition. The South China Sea dispute research is biased towards the field of humanities and social sciences as a whole, but the international research is more extensive and balanced in the distribution of citation subjects. Authoritative and mainstream publishing houses are common choices between domestic and foreign research, a small number publishers of research institution also catch researchers' attention.
Subjects: Nursing >> Nursing submitted time 2023-05-12
Abstract： Combination of peginterferon-alpha (PEG-IFN) and ribavirin (RBV) therapy is the current standard of care for chronic hepatitis C. This paper reviewed the studies of drug-related adverse reactions in hepatitis C patients who received PEG-IFN and RBV therapy, in order to increase awareness of medical staff and patients on drug-related adverse reactions, and provide reference for implementation of comprehensive interventions.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Social Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： From the perspective of social media group polarization, how should enterprises with strong stereotypes deal with the damage causing by weak stereotyped consumers? Previous studies have focused on enterprises harm to consumers and their responses, less attention has been paid to how enterprises responses after being harmed by consumers. The difference lies in the shifting of the roles of harmer and victim, as well as the shifting of the contrast between strength and weakness. In view of this, based on the theory of group polarization, this paper conducts research on the core issue of “how to deal with damaged brands to obtain/eliminate polarized support/opposition of onlooker consumer groups in the social media environment”, and explore the double valence coping strategies.According to the logical framework of group polarization theory: information persuasion strategy-group emotional resonance-group polarization results, we carry out three studies in general. (1) From the perspective of damaged brands, how should enterprises with strong stereotypes express their sad expression in order to gain polarized support from onlooker consumer groups? The conclusion is expected to be that enterprises adopted anthropomorphism (vs. non-anthropomorphic) and expressed group sympathy play a continuous mediating role in the context of social media, when infringing consumers cause brand harm. (2) From the perspective of onlooker consumer groups, how can enterprises with strong stereotypes unite with onlooker consumer groups to gain support from their group polarization? Expected conclusion is that the enterprise appealing for victim transfer (vs. no victim transfer) will make onlookers consumer groups have group polarization support, and the group-hate resonance of onlookers consumer groups to infringing consumers plays a mediating role in the social media environment, when infringing consumers cause damage to the brand. (3) From the perspective of infringing consumers, how to eliminate the polarization of onlooker consumer groups caused by enterprises punishing infringing consumers? Expected conclusion is that in the context of social media, victim significance (vs.no victim significance) will weaken or even eliminate the group polarization of onlooker consumer groups to brands, and the group anger resonance of onlookers to brands plays a significant mediating role. Overall, the theoretical contributions of this study are mainly reflected in the following three aspects First, from the perspective of research questions, this study puts forward a new research direction on how enterprises should deal with consumers' brand damage in the social media environment, filling in the theoretical system of brand crisis response; Second, from a theoretical perspective, this study proposes group polarization as an effective test basis and explanation mechanism support for damaged brand coping strategies, which expands the theoretical construction and explanation of brand crisis response. Third, from the perspective of individual infringing consumers, based on the theory of group polarization, in this study different appeal methods are proposed from the perspectives of victims, victims and onlookers, which will enrich the specific strategies for brand crisis response. In addition, based on the conclusions expected of this study, the management implications can be summarized as the following points. First, from the perspective of enterprises, this study provides valuable guidance on how damaged brands with strong stereotypes can "obtain/eliminate" the polarized "support/opposition" of onlooker consumer groups in the social media environment. Second, from the viewpoint of industry, conclusions of this study have reference significance for how the strong party should respond after being hurt by the weak party in the fields of government, education, and medical care . Finally, from a social perspective, the expected conclusions in this study can alleviate or eliminate the huge risks and adverse consequences brought by the negative polarization of groups in the social media environment to the whole society.
submitted time 2023-03-25 Cooperative journals: 《心理科学进展》
Abstract： From the perspective of social media group polarization, how should enterprises with strong stereotypes deal with the damage causing by weak stereotyped consumers? Previous studies have focused on enterprises harm to consumers and their responses, less attention has been paid to how enterprises responses after being harmed by consumers. The difference lies in the shifting of the roles of harmer and victim, as well as the shifting of the contrast between strength and weakness. In view of this, based on the theory of group polarization, this paper conducts research on the core issue of “how to deal with damaged brands to obtain/eliminate polarized support/opposition of onlooker consumer groups in the social media environment”, and explore the double valence coping strategies.According to the logical framework of group polarization theory: information persuasion strategy-group emotional resonance-group polarization results, we carry out three studies in general. (1) From the perspective of damaged brands, how should enterprises with strong stereotypes express their sad expression in order to gain polarized support from onlooker consumer groups? The conclusion is expected to be that enterprises adopted anthropomorphism (vs. non-anthropomorphic) and expressed group sympathy play a continuous mediating role in the context of social media, when infringing consumers cause brand harm. (2) From the perspective of onlooker consumer groups, how can enterprises with strong stereotypes unite with onlooker consumer groups to gain support from their group polarization? Expected conclusion is that the enterprise appealing for victim transfer (vs. no victim transfer) will make onlookers consumer groups have group polarization support, and the group-hate resonance of onlookers consumer groups to infringing consumers plays a mediating role in the social media environment, when infringing consumers cause damage to the brand. (3) From the perspective of infringing consumers, how to eliminate the polarization of onlooker consumer groups caused by enterprises punishing infringing consumers? Expected conclusion is that in the context of social media, victim significance (vs.no victim significance) will weaken or even eliminate the group polarization of onlooker consumer groups to brands, and the group anger resonance of onlookers to brands plays a significant mediating role. Overall, the theoretical contributions of this study are mainly reflected in the following three aspects First, from the perspective of research questions, this study puts forward a new research direction on how enterprises should deal with consumers' brand damage in the social media environment, filling in the theoretical system of brand crisis response; Second, from a theoretical perspective, this study proposes group polarization as an effective test basis and explanation mechanism support for damaged brand coping strategies, which expands the theoretical construction and explanation of brand crisis response. Third, from the perspective of individual infringing consumers, based on the theory of group polarization, in this study different appeal methods are proposed from the perspectives of victims, victims and onlookers, which will enrich the specific strategies for brand crisis response. In addition, based on the conclusions expected of this study, the management implications can be summarized as the following points. First, from the perspective of enterprises, this study provides valuable guidance on how damaged brands with strong stereotypes can "obtain/eliminate" the polarized "support/opposition" of onlooker consumer groups in the social media environment. Second, from the viewpoint of industry, conclusions of this study have reference significance for how the strong party should respond after being hurt by the weak party in the fields of government, education, and medical care . Finally, from a social perspective, the expected conclusions in this study can alleviate or eliminate the huge risks and adverse consequences brought by the negative polarization of groups in the social media environment to the whole society.
Subjects: Management Science >> Enterprise Management submitted time 2022-12-01
Abstract：
From the perspective of social media group polarization and facing the harm brought by consumers with the stereotype of the weak, how should the enterprises with stereotype of the strong deal with it? According to the logical line of group polarization theory: information persuasion strategy - group emotional resonance - group polarization results, we conducted three studies: from the perspective of the injured brand, how do enterprises express that they are a victim so that the injured brand will win the group polarization support of bystanders? From the perspective of bystanders, how should enterprises cooperate with bystanders to gain their group polarization support? And from the perspective of infringing party, how can enterprises eliminate the group polarization opposition from bystanders caused by punishing infringing party?
Peer Review Status:Awaiting Review
Subjects: Dynamic and Electric Engineering >> Engineering Thermophysics submitted time 2017-10-13 Cooperative journals: 《工程热物理学报》
Abstract：低温条件下碳化硅等半导体材料热导率的实验研究极少,数据匮乏,无法满足理论模型的优化需求。现有实验测量以接触式的稳态法导热系数测量为主,实验误差大,且低温测量成本过高。本文通过常规飞秒激光抽运探测热反射法与低温系统的有机结合,完成了4~300 K低温条件下单晶碳化硅热导率的测试及其随温度的变化规律,研究表明单晶碳化硅热导率在100 K左右存在极大值,温度低于100 K时其热导率与温度呈正相关,温度高于100 K时其热导率与温度呈负相关。极值点的位置与理论值的偏差可能是由于样品电子浓度、缺陷分布等因素影响。
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