The power grid is an important connection between power sources and users, responsible for supplying and distributing electric energy to users. Modern power grids are widely distributed and large in scale, and their security faces new problems and challenges. Information entropy theory is an objective weighting method that compares the information order of each evaluation index to judge the weight value. With the wide application of entropy theory in various disciplines, the subject of introducing entropy into the power system has (...) been gradually concerned. This article aims to study the smart terminal security technology of the power grid perception layer based on information entropy data mining. This article analyzes its related methods and designs a smart terminal for the power grid. On this basis, a data analysis platform is built and a safety plan is designed. The result is that the average absolute error, root mean square error, average absolute percentage error, and mean square error of the platform's power load forecast are 1.58, 1.96, 8.2%, and 3.93, respectively. These error values are within the ideal range, and the data processing ability is strong. The packet loss rate of the adversary's eavesdropping was tested, and the average packet loss rates at locations a, b, c, and d were 1.05, 1.2, 1.81, and 2.2%, respectively. Data packets will be definitely lost, so the platform is highly secure. (shrink)

In speaker recognition systems, feature extraction is a challenging task under environment noise conditions. To improve the robustness of the feature, we proposed a multiscale chaotic feature for speaker recognition. We use a multiresolution analysis technique to capture more finer information on different speakers in the frequency domain. Then, we extracted the speech chaotic characteristics based on the nonlinear dynamic model, which helps to improve the discrimination of features. Finally, we use a GMM-UBM model to develop a speaker recognition system. (...) Our experimental results verified its good performance. Under clean speech and noise speech conditions, the ERR value of our method is reduced by 13.94% and 26.5% compared with the state-of-the-art method, respectively. (shrink)

Many ecological and environmental economists take a microeconomic approach to envi­ronmental valuation and view the macroeconomy as an amalgam of firms whose primary task is to efficiently allocate scarce resources. In this framework, replacing freely provided ecosystem services with costly human-provided substitutes is by definition inefficient. Although destroying and replacing the free gifts of nature can sometimes be an economic benefit, in the case of apple-tree pollination in Maoxian County, China, the positive economic benefits do not justify eliminating the natural (...) processes. To the contrary, the Maoxian case illustrates the danger of allowing the logic of the market and its apologetic models to drive conservation policy. The conflict between the market economy and the natural world must be recognized and addressed in a more substantial way. The bees of Maoxian County are a parable for the relationship between humans and the natural world and show clearly the danger of leaving the fate of nature to the whims of the markets even if prices are “corrected.”. (shrink)

Increasing gender diversity in the boardroom has been promoted as a way to enhance corporate governance and risk management. This study empirically examines whether boards with more female directors play a role in reducing R&D risk. We first show that female directors help to reduce the positive relationship between R&D investment and future performance volatility. We then report that firms with more gender-diverse boards exhibit a lower adverse effect of R&D on the cost of debt. These results are robust to (...) endogeneity analysis, alternative measures of gender diversity and risky investment, and other sensitivity tests. Overall, our results suggest that female directors improve board effectiveness in risk management with respect to R&D investment. (shrink)

This paper theorizes and historicizes the ideas of modern language and translation and challenges the imperialist and nationalistic mode of worlding with the notion of ‘untranslatability’ that is embedded in the linguistic and cultural practices of colonial Taiwan and Korea. I redefine the notion of translation as a bordering system – the knowledge-production of boundaries, discrimination, and classification – that simultaneously creates the translatable and the untranslatable (i.e. the equivalence and incommensurability) in asymmetrical power relations. With this, I discuss how (...) this ambivalence is embodied in the experiences of colonial writers Wu Yung-fu and Pak T’aewŏn and their novellas ‘Head and Body’ (1933) and ‘A Day in the life of Kubo the Novelist’ (1934). I illustrate two characteristics of the ambivalent untranslatability embedded in their novellas: the linguistic untranslatability and the experience of ‘unhomeness’. The linguistic untranslatability and unhomeness, I argue, result in the colonized’s dislocation in homogeneous time-space relationships, resulting to the incompletion of the modernization project through colonialism. At the same time untranslatability offers a site to explore the transnational space that crosses linguistic boundaries, and to caution against the legacy of colonialism. (shrink)

The study of matching degree between energy equipment manufacturing and market demand is crucial for energy enterprises to adjust business strategies, expand market share, and develop sustainably. Considering that the current electricity market evaluation indicators are rarely selected from a global perspective and a single evaluation method may lead to one-sided results, this article takes the technology and equipment related to electric energy as the research object and selects six indicators, including technical standards, qualification certification, export methods, after-sales service, market (...) concentration, and product concentration. By analyzing the supply and demand characteristics of major global regional markets and the situation of Chinese power enterprises in these markets, we propose matching model cluster including osculating value method, rank-sum ratio method, ideal point method, entropy value method, and efficacy coefficient method to conduct the matching degree study. The results show that the overall market matching degree of Chinese power companies is good, especially in Southeast Asia, Central Asia, and Africa. For markets with a low degree of matching, we analyze the reasons based on the matching indicators values to provide companies with corresponding strategies and recommendations. (shrink)

In the famous ‘Fragment on Machines’ of the ‘Grundrisse’, Marx points out how social or collective knowledge (the ‘general intellect’) has become a ‘direct force of production’ through its embodiment into technical devices. The rhetorical wording ‘artificial intelligence’, with its own misleading anthropomorphic connotations, looks, from a Marxist perspective, the apex of this process in which knowledge becomes the core of the fixed capital that ideally must be re-appropriated by the workers. In this context, AI Art appears as one of (...) the many expressions of the commodification of the collective knowledge in which, for using the expression of Guy Debord, ‘all that was once lived has moved into representation for being commodified’. However, the progressive availability of AI tools for generating art also opens the doors to a ‘detournement’ strategy by allowing a decolonization of the artistic scenario in which each of us becomes the ‘author’ without being the author. Maybe in future, rather than asking ‘who is the author?’ we will find ourselves asking ‘what is the author?’. A move of this kind achieves automatically the ‘death of the author’, with the corresponding subversion of the notions of artistic intention, authorship, and genius, while disrupting the present commodification process behind the artistic ecosystem, in a fashion beyond the best intentions of Walter Benjamin’s ‘Art in the age of mechanical reproduction’. This move is ultimately disruptive from a metaphysical point of view as well to the extent that the human centrality is dispossessed by the recognition of forms of creativity different from our own creativity. (shrink)

Studies have shown that performance‐dependent monetary rewards facilitate visual perception. However, no study has examined whether such a positive effect is limited to the rewarded task or may be generalized to other tasks. In the current study, two groups of people were asked to perform two visual perception tasks, one being a reward‐relevant task and the other being a reward‐irrelevant task. For the reward‐relevant task, the experimental group received performance‐dependent monetary rewards, whereas the control group did not. For the reward‐irrelevant (...) task, both groups were not rewarded. The two tasks were randomly intermixed trial by trial (Experiment 1) or presented block by block (Experiment 2) or session by session (Experiments 3a, 3b, and 3c). Results showed that performance‐dependent monetary rewards improved participants' performance on the relevant task in all experiments and impaired their performance on the irrelevant task in Experiments 2, 3a, 3b, and 3c. These results suggested that monetary rewards might incur a cost on reward‐irrelevant tasks. Finally, the benefit of monetary rewards disappeared when they were no longer provided during the final session. This is the first study that reveals both the bright and dark sides of the performance‐dependent monetary rewards in visual perception. (shrink)

Understanding how teacher leaders are engaged in curriculum affairs is critical with the implementation of instructional decentralization. The current study adopts a qualitative approach to investigate Teaching Research Group leaders’ involvement in curriculum leadership in the Chinese context. It explores the conceptions of TRG leaders by interviewing 20 of them, observing four meetings held by TRG leaders, and collecting 10 extracts from appraisal summaries of TRG leaders in secondary schools in China. Drawing on the findings, this paper examines the characteristics (...) of TRG leader’s engagement in CL. More importantly, data highlighted significant problems the participants perceived and faced in their work as TRG leaders, which consisted of amplifying the necessity for empowering TRG leaders and identifying the phenomenon that said leaders are less empowered and less motivated to undertake the CL role. The results add to the international body of knowledge on the teachers’ engagement in CL. (shrink)

Academic discourses regarding teacher motivation have been on-going for decades for those who teach in ethnic minority areas. Yet research findings failed to provide a consistent conclusion regarding if kindergarten teachers’ motivation pattern would vary based on a case-to-case scenario. Therefore, further studies are needed to probe the motivation patterns among this population. The study firstly examined kindergarten teachers’ motivational profiles based on Expectancy Value Theory, and then examined how teachers’ motivation related to outcome variables. Participants included 1,199 kindergarten teachers (...) from ethnic minority areas in China. Latent profile analysis identified three motivation profiles for teachers: low value-high cost, moderate all, and high value-low cost. Teacher with different motivation profiles had significant differences in work engagement, workplace wellbeing, and retention intention. In addition, chain mediation analysis revealed that work engagement and workplace wellbeing mediated the relationship between motivation profiles and retention intention. The implications of the findings for study are discussed. (shrink)

Student well-being and its relationships with academic achievement in China have not been well-investigated. This study aimed at investigating student well-being and the trade-off of the well-being and academic achievement with a sample of 1,353 Chinese high-school students from four cities in China during coronavirus disease 2019 pandemic period. The six dimensions of well-being were utilised to test the relationships with three subjects including Mathematics, English, and Chinese using a quantitative analysis. In this study, the relationships between six dimensions of (...) well-being and three academic subject achievements were tested in one statistical model. Results showed that spiritual well-being was ranked the highest, followed by psychological, physical, self, and social well-being. Students gave the lowest ranking to academic well-being. The two significant paths identified were between spiritual well-being and two subjects, namely, Chinese and Mathematics. It is interesting to note that the other five dimensions of well-being were significantly associated with any subjects and English was not significantly related to any dimensions of well-being in this study. Our findings suggested that policymakers and other stakeholders should avoid an “all or nothing” mindset on practice when considering well-being as a multidimensional construct. (shrink)

We study the equilibrium behavior of informed traders interacting with market scoring rule (MSR) market makers. One attractive feature of MSR is that it is myopically incentive compatible: it is optimal for traders to report their true beliefs about the likelihood of an event outcome provided that they ignore the impact of their reports on the profit they might garner from future trades. In this paper, we analyze non-myopic strategies and examine what information structures lead to truthful betting by traders. (...) Specifically, we analyze the behavior of risk-neutral traders with incomplete information playing in a dynamic game. We consider finite-stage and infinite-stage game models. For each model, we study the logarithmic market scoring rule (LMSR) with two different information structures: conditionally independent signals and (unconditionally) independent signals. In the finite-stage model, when signals of traders are independent conditional on the state of the world, truthful betting is a Perfect Bayesian Equilibrium (PBE). Moreover, it is the unique Weak Perfect Bayesian Equilibrium (WPBE) of the game. In contrast, when signals of traders are unconditionally independent, truthful betting is not a WPBE. In the infinite-stage model with unconditionally independent signals, there does not exist an equilibrium in which all information is revealed in a finite amount of time. We propose a simple discounted market scoring rule that reduces the opportunity for bluffing strategies. We show that in any WPBE for.. (shrink)

ABSTRACT Riding on the rising concern of public health and the growing neoliberal self-care agenda, the food market has witnessed a surge in ‘healthy’ food despite the criticism of this food does not help consumers eat more healthily. A growing interest in Critical Discourse Studies is how food marketers colonise not only the food discourse but also the broader ideas and values such as health, politics, and environment. Contributing to this growing body of research, we look at one of the (...) fastest-growing food trends, ‘functional drinks’, which claim to target physiological and psychological processes in the body, so that consumers can manage their health and performance. Company websites rely on forms of infographics to communicate how the products work. Adopting the notion of ‘integrated design’ from multimodal CDS, we show how these infographics, drawing on their affordances, are particularly useful in symbolising classifications and causalities which could not be accounted for in running texts. The paper argues that this is a way health and science converge with a neoliberal discourse of self-management and enterprise culture. Given the increased use of forms of integrated design in communication, more critical discursive work is needed in this area. (shrink)

GraphicalPatients with early- to middle-stage PD were enrolled for C-Gait assessment and traditional walking ability assessments. The correlation of C-Gait assessment and traditional walking tests were studied. Two models were established based on C-Gait assessment and traditional walking tests to explore the value of C-Gait assessment in predicting freezing of gait.ObjectiveEfficient methods for assessing walking adaptability in individuals with Parkinson’s disease are urgently needed. Therefore, this study aimed to assess C-Gait for detecting freezing of gait in patients with early- to (...) middle-stage PD.MethodPeople with PD diagnosis were recruited from April 2019 to November 2019 in Beijing Rehabilitation Hospital. The participants performed six items of walking adaptability on an instrumented treadmill augmented with visual targets and obstacles. The patient’s walking adaptability was evaluated by C-Gait assessment and traditional walking tests, and FOG-related indexes were collected as outcome measures. Two discriminant models were established by stepwise discriminant analysis; area under the receiver operating characteristic curve was used to validate the models.ResultIn total, 53 patients were included in this study. Most C-Gait assessment items had no or low correlations with traditional walking tests. The obstacle avoidance and speed of adaptation items could lead to FOG with high sensitivity. In addition, the C-Gait assessment model had slightly better discrimination of freezers from non-freezers compared with traditional walking test models ; specifically, obstacle avoidance and speed of adaptation have uniquely discriminant potential.ConclusionC-gait assessment could provide additional value to the traditional walking tests for PD. Gait adaptability assessment, as measured by C-Gait, may be able to help identify freezers in a PD population. (shrink)

Hydromechanical continuously variable transmission is capable of bearing large torque and has wide transmission range, which is suitable for high-power tractors. Dynamic characteristics could influence the tractor life, especially in a high-power tractor. Wet clutch is the crucial component in the HMCVT, which could smooth and soft power transmission. Therefore, it is important to study the dynamic characteristics and implement the wet clutch test of HMCVT. In this paper, AMESim is used to establish virtual models of gearbox, pump-controlled hydraulic motor (...) system, and shifting hydraulic system. Then, a simulation study of tractor operation under working condition is carried out. The internal and external meshing forces of the planetary row are analyzed. Finally, the wet clutch engagement process of HMCVT in the high-power tractor is tested to verify the oil pressure. The simulation results show that the values of internal and external meshing force become larger as the throttle opening increases. At the moment of shifting change, the meshing forces of the planetary gear have great impact. The clutch test shows that the trend of the oil filling curve obtained from the bench test is similar to that obtained from the theoretical curve, which verifies the simulation results. (shrink)

Travel route preferences can strongly interact with the events that happened in networked traveling, and this coevolving phenomena are essential in providing theoretical foundations for travel route recommendation and predicting collective behaviour in social systems. While most literature puts the focus on route recommendation of individual scenic spots instead of city travel, we propose a novel approach named City Travel Route Recommendation based on Sequential Events Similarity by applying the coevolving spreading dynamics of the city tour networks and mine the (...) travel spatiotemporal patterns in the networks. First, we present the Event Sequence Similarity Measurement Method based on modelling tourists’ travel sequences. The method can help measure similarities in various city travel routes, which combine different scenic types, time slots, and relative locations. Second, by applying the user preference learning method based on scenic type, we learn from the user’s city travel historical data and compute the personalized travel preference. Finally, we verify our algorithm by collecting data of 54 city travellers of their historical spatiotemporal routes in the ten most popular cities from Mafeng.com. CTRR-SES shows better performance in predicting the user’s new city travel sequence fitting the user’s individual preference. (shrink)

本书内容包括:“法律政治人——人的光明,法的黑暗”;“再论律师——朦胧选项里的清楚选择”;“检察官——正义守卫或贪腐共犯”;“再论检察官——人与制度的双面期待”等。.

We show that the algebra of the group SL(2, C) naturally leads to the notion of gyrogroups and gyrovector spaces for dealing with the Lorentz group and its underlying hyperbolic geometry. The superiority of the use of the gyrogroup formalism over the use of the SL(2, C) formalism for dealing with the Lorentz group in some cases is indicated by (i) the validity of gyrogroups and gyrovector spaces in higher dimensions, by (ii) the analogies that they share with groups and (...) vector spaces, and by (iii) the demonstration that gyrovector spaces form the setting for hyperbolic geometry in the same way that vector spaces form the setting for Euclidean geometry. As such, gyrogroups and gyrovector spaces provide powerful tools for the study of relativity physics. (shrink)

The present study examines how collectivism, an important cultural value, plays a moderating role in the association between job attitudes and actual turnover in a sample of 781 Chinese female workers. Results show that collectivism moderates the relationships between job attitude variables and turnover intention. Job satisfaction and organizational commitment are more powerful in predicting turnover intention when levels of collectivism are high rather than low. However, collectivism only moderates the mediation of turnover intention in the relationship between job satisfaction (...) and actual turnover. The study deepens the understanding of the moderating effect of cultural values in organizational behavioral outcomes as Taras et al. suggest. Also discussed are the practical implications on how to control the voluntary termination of female laborers who constitute an important part in Chinese manufacturing. (shrink)

本书是作者对文艺学美学现象和问题深入思考的成果辑集,内容涵盖文艺美学,文学批评,文学理论,当代审美文化,文学理论教材研究,戏曲理论,文艺学方法论等方面,基础研究与前沿性探索并重,具有一定的学术参考价值 .

The safety of the transmission lines maintains the stable and efficient operation of the smart grid. Therefore, it is very important and highly desirable to diagnose the health status of transmission lines by developing an efficient prediction model in the grid sensor network. However, the traditional methods have limitations caused by the characteristics of high dimensions, multimodality, nonlinearity, and heterogeneity of the data collected by sensors. In this paper, a novel model called LPR-MLP is proposed to predict the health status (...) of the power grid sensor network. The LPR-MLP model consists of two parts: local binary pattern, principal component analysis, and ReliefF are used to process image data and meteorological and mechanical data and the multilayer perceptron method is then applied to build the prediction model. The results obtained from extensive experiments on the real-world data collected from the online system of China Southern Power Grid demonstrate that this new LPR-MLP model can achieve higher prediction accuracy and precision of 86.31% and 85.3%, compared with four traditional methods. (shrink)

本书内容包括:中国共产党的党性和先进性、新时期共产党员必须加强党性修养、怎样进行党性修养等。.

Divorce is not only a personal choice, but also a sign of the lack of confidence in the institution of marriage. The issue of divorce raises questions that are sociological, theological, experiential, philosophical and political. This article traces the arguments with particular reference to the situation in Taiwan where women have no right to initiate divorce. It surveys the biblical and theological arguments, locating issues of divorce in the area of gender justice within patriarchal systems. Marriage, as well as divorce, (...) is complex. To impose a monolithic definition of divorce is to fail to recognize the diversity of marital conflict and breakdown, generally to the advantage of a patriarchal society. This was as true of Hebrew society as it is of modern Taiwan, with its history of political struggle. The article concludes by challenging the Taiwanese churches to provide insights for people in their relationships with one another and with God. (shrink)

Replication protein A (RPA), the major single‐stranded DNA‐binding protein in eukaryotic cells, is required for processing of single‐stranded DNA (ssDNA) intermediates found in replication, repair, and recombination. Recent studies have shown that RPA binding to ssDNA is highly dynamic and that more than high‐affinity binding is needed for function. Analysis of DNA binding mutants identified forms of RPA with reduced affinity for ssDNA that are fully active, and other mutants with higher affinity that are inactive. Single molecule studies showed that (...) while RPA binds ssDNA with high affinity, the RPA complex can rapidly diffuse along ssDNA and be displaced by other proteins that act on ssDNA. Finally, dynamic DNA binding allows RPA to prevent error‐prone repair of double‐stranded breaks and promote error‐free repair. Together, these findings suggest a new paradigm where RPA acts as a first responder at sites with ssDNA, thereby actively coordinating DNA repair and DNA synthesis. (shrink)

In this article, we propose a series of control strategies to synchronize two chaotic financial systems. Due to the characteristics of chaotic systems, the system is very sensitive to its initial values. Thus, the behaviour of two systems with different initial values will be completely different. In order to realize the synchronization of two financial chaotic systems, we designed a series of controls including controllers to realize global asymptotic synchronization and controllers to realize global exponential synchronization to make the two (...) systems fully synchronized. We provide mathematical proofs to show that the designed controls are effective. Numerical methods are used to verify the effectiveness of the controls. (shrink)

v. 1 - 2. Yan Yuan wen ji -- v. 3 - 4. Li Gong wen ji -- v. 5. Yan shi xue ji. Yan Xizhai zhe xue si xiang shu -- v. 6. Yan Xizhai he Du Wei zhe xue si xiang ji jiao yu si xiang de bi jiao yan jiu. Yan Li xue pai -- v. 7. Yan Yuan ping zhuan. Yan Yuan yu Li Gong -- v. 8. Li Gong ping zhuan. Li Gong si xiang yan (...) jiu -- v. 9 - 10. Yan Li xue pai yan jiu wen xuan. (shrink)