Fingerprint recognition is the most widely used identification method at present. However, it still falls short in terms of cross-platform and algorithmic complexity, which exerts a certain effect on the migration of fingerprint data and the development of the system. The conventional image recognition methods require offline standard databases constructed in advance for image access efficiency. The database can provide a pre-processed image via a specific method that probably is compatible merely with the specific recognition algorithm. Then, the specific recognition (...) algorithm starts the process of retrieving these specific pre-proessing images for recognition and inevitably will be blocked from other datasets. The proposed method in this research designed an embedded image processing algorithm based on a Siamese neural network in the recognition method that allows the proposed method to recognize images from any source without constructing a database for image storage in advance. In this research, the proposed method was applied to fingerprint recognition and evaluation of the proposed method was evaluated. The results showed that the accuracy of the proposed algorithm was up to 92%, and its F1 score was up to 0.87. Compared with the conventional fingerprint matching methods, its significant advantage in the FRR, FAR, and CR jointly indicated the remarkable correct recognition rate of the proposed method. (shrink)

该书内容涵盖马克思历史观的思想背景、时代愿望的时代自我阐明、人的感性活动与历史来历、人的现实生存与叙述历史等六部分。.

Ben shu ji zhong fan ying le dang dai ri ben zhe xue jia dui ma ke si zhu yi zhe xue de li jie.Shu zhong shou lu le ti ming xiu zi ran li shi guo cheng de si xiang,Ping tian qing ming xun huan= ji lei li lun yu li shi ren shi,Yan yuan qing yi ri ben de1844 nian jing ji xue zhe xue shou gao yan jiu deng wen zhang.

本书对历史主体及其选择活动的本质,历史选择中的自由与必然,历史选择与历史规律的关系等理论问题进行富有新意探讨和论述。.

Ontology: An Ontological Interpretation to Baudrillard’s Consumption Society TheoryJean Baudrillard used “Consumption society” to describe a novel transformation of the contemporary life, “consumption society” has become to the symbol of contemporary ideology. From this we can say that reading Jean Baudrillard is very necessary. Compared with what Jean Baudrillard said, what we comprehended is more important, so it is very necessary to analyze Jean Baudrillard’s consumption society theory on the ontological viewpoint. To this, Iattach great important to the follow key (...) issues: what kind of existent character Jean Baudrillard revealed? Hegel’s modern western philosophy participated in the foundation of the Capitalist civilization; Jean Baudrillard was unavoidably involved in, so what is the advancement in theory system? How to define the demarcation to Jean Baudrillard? He animadverted on Marx and appropriated his valuable thoughts. (shrink)

Purpose: Short track speed skating is a racing sport with racing tactics are equally crucial to speed and technical skating skills. Therefore, to investigate the relationship between starting and finishing positions for elite skaters and subsequently, explore pacing patterns for champions are necessary.Methods: To investigate a pattern of effective tactical positioning strategy, Kendall’s tau-b correlations between starting and finishing position were calculated, with 500 m races having the most positive correlation.Results: Furthermore, starting position distributions of winners in each round, as (...) well as the fluctuations in champion starting positions across rounds were analyzed. Our findings showed that skaters on the first track were inclined to win the rounds in 500, 1,000, and 1,500 m, and the differences between starting and finishing positions for champions were minimized in semi-finals. Meanwhile, the pacing patterns were gaining more fluctuations by the increase of race distances for champions, as the average standard deviation of lap rankings equaled 0.90, 1.15, and 2.21 for 500, 1,000, and 1,500 m races, respectively.Conclusion: In conclusion, elite skaters should adopt flexible tactics at the lowest cost of energy consumption. The overall variability of lap ranking in long-distance races were distinctly higher than it in short distance. (shrink)

王船山，名夫之，字而农，号姜斋，中岁自称“一瓠道人”。生于明朝万历四十七（1619）年，卒在清康熙三十一（1692）年。湖南衡阳人。王船山先生是中国历史上广博的学者和伟大的思想家。本书作者在详细查阅充 足的史料、充分躬身研究多年和多次船山遗迹考察的基础上，详述了船山的传奇一生及其心路历程。书中虽然主要是以船山的实际人生经历为表达目标，但同时也涉及了船山一些很精深的思想。通过对于船山及其思想的理解，我 们也可以进而了解人类的精神之伟大与崇高，了解古今中外的贤哲们，为了延续和发展人类的精神慧命所作的坚忍不拔的努力和贡献的意义。阅读此书，可以激发读者对于湖湘文化和传统文化的兴趣。.

The aim of the present study was to explore the differences in technical performances of players considering playing positions by controlling the effect of situational variables in each FIBA female continental basketball competition. Samples of 9,208 observations from 471 games in the America, Africa, Asia, and Europe Championships during 2013–2017 were collected and analyzed by generalized mixed linear modeling. The results showed that Centers from Europe had more 2-point made, 2-point attempted, and offensive and defensive rebounds than forward. Asian and (...) European guards performed a fewer number of 2-point made, 2-point attempted, and offensive and defensive rebounds than Asian and European centers. African and Asian forward had more 2-point made, 2-point attempted than guards. This study helps to better understand the technical demands of female basketball among different international competitions, which could pave a new way to analyze the development trend of female basketball and promoting specific training plans and game strategies for coaches and players. (shrink)

本書並不是一部全面敘述馮友蘭的生平或前半生的傳記，也不是一部單純研究馮友蘭的學術或哲學思想的專著。而是有意以馮友蘭的民族主義思想的形成和發展為個案，藉著探究馮氏如何由一個傳統的士子，轉變為五四反傳統主 義者，又如何由五四反傳統主義者，再變為文化保守主義的重要柱石的學思經歷，來檢視馮友蘭前半生的心路和生命歷程。凡與此相關者則詳之，凡與此不相關或關係不密切者則略之.

Integrating norms of reciprocity, affect theory of social exchange, and ambivalence literature, we investigated how leader-member exchange (LMX) ambivalence influences employees’ interpersonal behaviors toward supervisors. Study 1, with a time-lagged field method, revealed that LMX ambivalence was positively related to _both_ employee-rated supervisor-directed helping and deviant behaviors and that such relationships were mediated by emotional ambivalence toward supervisors. We also confirmed the amplification effects of workplace gossip about supervisors (WGS). Specifically, while receiving more positive WGS (PWGS) or less negative WGS (...) (NWGS) could strengthen the positive relationship between emotional ambivalence and supervisor-directed helping behaviors, receiving less PWGS or more NWGS would accentuate the positive effect of emotional ambivalence on supervisor-directed deviant behaviors. Study 2 replicated our results with a scenario-based method and offered evidence for the mediating effect of emotional ambivalence toward supervisors. Study 3 included supervisor-rated helping and deviant behavior and a subjective measure of emotional ambivalence and again confirmed the mediating role of emotional ambivalence. Our findings extend knowledge of the interpersonal consequences of LMX ambivalence. (shrink)

According to social information processing theory and conservation of resource theory, we examine whether and how authoritarian-benevolent leadership influences employees’ proactive work behaviors (PWBs) and unethical pro-organizational behaviors (UPBs). Study 1, a survey of 351 participants, revealed that authoritarian-benevolent leadership was positively related to LMX ambivalence, and that LMX ambivalence was negatively related to employees’ PWBs as well as UPBs. Further, the results showed that LMX ambivalence mediated the relationship between authoritarian-benevolent leadership and employees’ PWBs as well as UPBs. We (...) also found that dialectical thinking negatively moderated the effect of authoritarian-benevolent leadership on employee LMX ambivalence. Study 2, using manipulations in the form of scenarios, examined the mediating effect of LMX ambivalence linking authoritarian-benevolent leadership with employees’ PWBs and UPBs. We discussed the theoretical and practical implications of our findings. (shrink)

It is difficult for the conventional image compression method to achieve good compression effect in the underwater acoustic image, because the UWAI has large amount of noise and low correlation between pixel points. In this paper, fractal coding is introduced into UWAI compression, and a fractal coding algorithm based on interest region is proposed according to the importance of different regions in the image. The application problems of traditional quadtree segmentation in UWAIs was solved by the range block segmentation method (...) in the coding process which segmented the interest region into small size and the noninterest region into large size and balanced the compression ratio and the decoded image quality. This paper applies the classification, reduction codebook, and correlation coefficient matching strategy to narrow the search range of the range block in order to solve the problem of the long encoding time and the calculation amount of encoding process is greatly reduced. The experimental results show that the proposed algorithm improves the compression ratio and encoding speed while ensuring the image quality of important regions in the UWAI. (shrink)

This paper investigates the leaderless and leader-follower time-varying formation design and analysis problems for a group of networked agents subject to discontinuous communications. Firstly, a leaderless time-varying formation control protocol is proposed via the intermittent control strategy, where the control input of each agent is constructed by the distributed local state information and formation instructions in the communication time unit, but it is zero in the noncommunication time unit. Then, an explicit formulation of the formation center function is determined to (...) describe the formation movement trajectory of the whole networked agents. Leaderless time-varying formation design and analysis with discontinuous communications are given in the form of linear matrix inequalities. Moreover, the main results of the leaderless cases are extended to the leader-follower cases. Finally, two numerical examples are provided to illustrate the theoretical results of leaderless and leader-follower cases, respectively. (shrink)

Die Mythologie-Konzeption in Schellings <I>Philosophie der Kunst liefert uns ein wesentliches Mythologieverstandnis des Deutschen Idealismus. Sie bezeichnet eine unerlassliche Richtung der modernen Asthetik und zielt darauf ab, der menschlichen Vernunft die Wahrheit der Mythologie wieder zuganglich zu machen. In diesem Buch wird versucht, durch Text-Auslegung den identitatsphilosophischen Zusammenhang, den naturphilosophischen Ansatzpunkt dieser Konzeption und Schellings Wiederentdeckung der Mythologie als das ontologisch Gegebene der Kunst zu beleuchten. Hervorgehoben werden seine Darlegung der ontologischen Struktur und der historischen Dimension der Mythologie sowie die (...) Deutung der Gotterlehre im Rahmen der Ideenlehre: Die an sich selbst betrachteten Ideen sind die real betrachteten Gotter.". (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Buddhist Ethics: A Philosophical Exploration by Jay L. GarfieldYilun Zhai (bio)Buddhist Ethics: A Philosophical Exploration. By Jay L. Garfield. New York: Oxford University Press, 2021. Pp. xiv + 248. Paperback $24.95, ISBN 978-0-19-090764-8.Jay L. Garfield's Buddhist Ethics: A Philosophical Exploration offers a comprehensive presentation of Buddhist ethics as well as one of the most ingenious metaethical developments in the field. With Western philosophers as its potential readers, (...) the tone and the choice of examples of this book contain a typical philosophical flavor. Most interestingly, it is not only an objective interpretation of the existing Buddhist ethical theories, but also an innovative work that expands the current theoretical boundary. Buddhist Ethics is divided into three parts: in the first part ("Structure") Garfield argues that Buddhist ethics is best characterized by "moral phenomenology," a metaethical theory that emphasizes how we experience over what we do. The second part ("Doctrine") elaborates on how both the Theravāda and Mahāyāna paths are ethical in nature and compatible with a phenomenological interpretation. The third part ("Contemporary Issues") introduces Engaged Buddhism, and claims that Buddhist ethics can function naturalistically without supernatural concepts such as rebirth and the six realms of transmigration.The first part of Buddhist Ethics maps a structural framework of moral phenomenology. Over the past decades, philosophers have endeavored to place Buddhist ethics under the existing Western metaethical categories, for Buddhist ethical thought bears a striking resemblance to all of the major traditions of Western ethics--consequentialism, virtue ethics, and deontology. But Garfield rejects any simple generalization and proposes a particularist reading of Buddhist ethics, which he calls "moral phenomenology." For Garfield, Buddhist ethics cannot be captured by any universal, overarching moral principle; not because Buddhists neglected ethics or failed to create metaethical theory, he argues, but that no universal moral principle is sufficiently sophisticated as a guidance for real life (p. 23). The complexity of dependent origination and the unique goal-oriented paths make the Buddhist definitions of action, agent, free will, pleasure, and pain utterly distinct from their Western counterparts. In particular, while Western philosophers often rely on our natural perceptual capacities and the conceptual mind as sources of information (such as the Cartesian "clear and distinct ideas"), according to Garfield, Buddhist ethicists regard ordinary perception as [End Page 1] fundamentally flawed and the source of all suffering. Thus, they "aim to correct a 'natural' way of experiencing ourselves," characterized by moral phenomenology (p. 22).Although moral phenomenology is the nucleus of Garfield's entire project, a comprehensive, formal definition of the term is lacking throughout the book. To help the reader understand this sophisticated term and its ethical stance, I will briefly summarize it here. Buddhist moral phenomenology centers on the transformation of our mental experiences, which Garfield calls an "input ethics," in contrast to the Western "output ethics" that emphasize explicit rules, external actions and their consequences, and cultivation of virtues (p. 29). The process of ethical cultivation--completed through prescriptive paths--replaces our natural egocentric experiences with a liberated perspective stemming from the interdependence of all things. Such a perceptual transformation in turn replaces one's instinctive reactions with a spontaneous and responsive mode of comportment toward the world (p. 27). The final goal of moral phenomenology is the elimination of suffering for all sentient beings, with the buddhas and bodhisattvas as exemplary models of its perfection. In this sense, it is a combination of an ethical path and a soteriological path.To the best of my knowledge, Garfield is the first person to explicitly identify a moral phenomenological reading of Buddhist ethics: His 2010 article "What Is It Like to Be a Bodhisattva" and 2015 book Engaging Buddhism include pioneering research on this theory. The current book (Buddhist Ethics) further develops the theory, offering a more mature metaethical structure and in-depth explorations of canonical texts from the Indo-Tibetan traditions. By endorsing a moderate form of ethical particularism, Buddhist phenomenology refrains from committing to a single Western metaethical category, and gains notable advantage in synthesizing a myriad of Buddhist moral discourses into a united whole. This theory is undoubtedly Garfield's paramount contribution in the... (shrink)

The study examined the effect of celebrity attractiveness, celebrity trustworthiness, and celebrity cause fit on the attitude toward green cosmetics. This was followed by the effect of brand awareness, brand associations, brand loyalty, perceived quality, brand credibility on brand equity, including the impact of attitude toward green cosmetics and brand equity on the willingness to purchase green cosmetics among of young Chinese consumers. This study adopted a cross-sectional design and collected quantitative data from 301 respondents using a structured questionnaire, which (...) was distributed online using various social media platforms. It was found that celebrity attractiveness, celebrity trustworthiness, and celebrity cause-fit had a significant impact on the attitudes toward green cosmetic, while brand loyalty, perceived quality, and brand credibility substantially affected brand equity. Moreover, the attitudes toward green cosmetics and brand equity had a strong impact on the willingness to purchase green cosmetics. To increase the sales for green cosmetics, the advertisements for it should have appeal, trustworthiness, and cause-fit celebrities to improve consumers’ attitudes and willingness to purchase green cosmetics. Finding of this study provide a guideline for green cosmetic manufacturers, to direct their resources to enhance brand loyalty, credibility, and perceived quality of the product they produce by highlighting the difference between conventional and green cosmetics. (shrink)

Mental fatigue (MF) jeopardizes performance and safety through a variety of cognitive impairments and according to the complexity loss theory, should represent “complexity loss” in electroencephalogram (EEG). However, the studies are few and inconsistent concerning the relationship between MF and loss of complexity, probably because of the susceptibility of brain waves to noise. In this study, MF was induced in thirteen male college students by a simulated flight task. Before and at the end of the task, spontaneous EEG and auditory (...) steady-state response (ASSR) were recorded and instantaneous frequency variation (IFV) in alpha rhythm was extracted and analyzed by multiscale entropy (MSE) analysis. The results show that there were significant differences in IFV in alpha rhythm either from spontaneous EEG or from ASSR for all subjects. Therefore, the proposed method can be effective in revealing the complexity loss caused by MF in spontaneous EEG and ASSR, which may serve as a promising analyzing method to mark mild mental impairments. (shrink)

There are complex posture changes in dance movements, which lead to the low accuracy of dance movement recognition. And none of the current motion recognition uses the dancer’s attributes. The attribute feature of dancer is the important high-level semantic information in the action recognition. Therefore, a dance movement recognition algorithm based on feature expression and attribute mining is designed to learn the complicated and changeable dancer movements. Firstly, the original image information is compressed by the time-domain fusion module, and the (...) information of action and attitude can be expressed completely. Then, a two-way feature extraction network is designed, which extracts the details of the actions along the way and takes the sequence image as the input of the network. Then, in order to enhance the expression ability of attribute features, a multibranch spatial channel attention integration module based on an attention mechanism is designed to extract the features of each attribute. Finally, using the semantic inference and information transfer function of the graph convolution network, the relationship between attribute features and dancer features can be mined and deduced, and more expressive action features can be obtained; thus, high-performance dance motion recognition is realized. The test and analysis results on the data set show that the algorithm can recognize the dance movement and improve the accuracy of the dance movement recognition effectively, thus realizing the movement correction function of the dancer. (shrink)

Emotional creativity refers to a set of cognitive abilities and personality traits related to the originality of emotional experience and expression. Previous studies have found that emotional creativity can positively predict posttraumatic growth and mental health. The outbreak of coronavirus disease 2019 (COVID-19) has posed great challenges to people’s daily lives and their mental health status. Therefore, this study aims to address the following two questions: whether emotional creativity can improve posttraumatic growth and mental health during the COVID-19 pandemic and (...) how it works. To do this, a multiple mediation model has been proposed, which supposes that emotional creativity is associated with posttraumatic growth and mental health through perceived social support and regulatory emotional self-efficacy. The study involved 423 participants from multiple regions with different COVID-19 involvement levels. Participants were asked to complete a questionnaire with six parts, which included Emotional Creativity Inventory (ECI), Regulatory Emotional Self-Efficacy Scale (RES), Stress-Related Growth Scale-Short Form (SRGS-SF), Multidimensional Scale of Perceived Social Support scale (MSPSS), Brief Symptom Inventory-18 scale (BSI-18), and COVID-19-related life events questionnaire. Path analysis used to examine the mediation model indicated that under the control of COVID-19-related life events and age, perceived social support mediated a positive association between emotional creativity and posttraumatic growth as well as a negative association between emotional creativity and all mental health problems, including somatization, depression, and anxiety. Regulatory emotional self-efficacy mediates the association between emotional creativity and posttraumatic growth, emotional creativity and anxiety, and emotional creativity and depression. The results suggest that emotional creativity plays an important role in coping with stressful events related to COVID-19. Furthermore, these results might provide a better understanding of the possible paths through which emotional creativity is related to psychological outcomes, such as mental health and posttraumatic growth. (shrink)

The time-scale dynamic equations play an important role in modeling complex dynamical processes. In this paper, the Mei symmetry and new conserved quantities of time-scale Birkhoff’s equations are studied. The definition and criterion of the Mei symmetry of the Birkhoffian system on time scales are given. The conditions and forms of new conserved quantities which are found from the Mei symmetry of the system are derived. As a special case, the Mei symmetry of time-scale Hamilton canonical equations is discussed and (...) new conserved quantities for the Hamiltonian system on time scales are derived. Two examples are given to illustrate the application of results. (shrink)

This is a discussion of the reaction to the recent research article publication in the journal Protein & Cell by a group of scientists at Sun Yat-sen University using the CRISPR/Cas9 technique on editing non-viable human zygotes. Many commentators condemned the Chinese scientists for overstepping ethical boundaries long accepted in Western countries and accused China of having lax regulations on genomic research in general. We argue that not only did this research follow strict ethical standards and fully comply with current (...) regulations, but China also has a well-developed regulatory framework governing such research comparable to many developed countries. We see the reactions among Western commentators as a misunderstanding of the current situation and an expression of a lack of willingness to acknowledge China as an equal partner in the international debate about proper limits to the development of new biotechnologies. (shrink)

Gaze cueing effect (GCE) refers to attention orienting towards the gazed-at location, characterised by faster responses to gazed-at than non-gazed-at stimuli. A previous study investigated the effects of affective priming on GCE and reported that threatening primes enhanced GCE. However, it remains unknown whether the threat or heightened arousal potentiated GCE. We investigated how highly arousing threatening and positive primes, compared to low arousing neutral primes modulate GCE. After a brief exposure to an affective prime (pictures of threat or erotica) (...) or a neutral prime, participants detected an asterisk validly or invalidly cued by the gaze direction of a neutral face. The results showed that the threatening primes diminished the magnitude of GCE. The highly arousing positive primes did not have an effect on GCE. Further analyses showed that, as compared to neutral priming, the reaction times after threatening primes were shortened on invalid trials. This finding was interpreted to suggest that the threatening primes enhanced goal-directed target detection and attenuated attention orienting by irrelevant gaze cues via improving executive control. In sum, the present findings indicate that threat priming modulates GCE, not because of heightened arousal but because of the threat. (shrink)

Employing the ideological square model (Van Dijk, 1998, 2000), this article examines polarization strategies of positive and negative representations of ‘us’ and ‘them’ in ideological discourse on the rise of China by Western media. We analyzed discourse properties in the narratives of five podcast episodes of the BBC World Service about the Chinese Dream, one episode each on Australia, Canada, India, Indonesia, and Kenya. The results revealed prevalent negative representations of ‘them’ – emphasizing negative characteristics and de-emphasizing positive ones of (...) China. However, discourse strategies of emphasizing positive characteristics about ‘us’ and de-emphasizing negative things about ‘us’ were only found in Australia and Canada. The podcasts hardly avoided discussing negative aspects of India, Indonesia, and Kenya. In doing so, the BBC’s ideological discourse excluded these countries from ‘us.’ Our study indicates that the ideological square approach is not only useful to elucidate discourses behind positive and negative representations of ‘us’ and ‘them’ but also can identify nuances in discursive construction of ‘us.’. (shrink)

Generalized anxiety disorder (GAD) is characterized by excessive and uncontrollable worry about everyday life. Prior neuroimaging studies have demonstrated that GAD is associated with disruptions in specific brain regions; however, little is known about the global functional connectivity maps in adolescents with GAD. Here, first-episode, medication-naive, adolescent GAD patients ( N = 36) and healthy controls ( N = 28) (HCs) underwent resting-state functional MRI (R-fMRI) and completed a package of questionnaires to assess clinical symptoms. Functional connectivity strength and seed-based (...) functional connectivity were employed to investigate the functional connectivity architecture. GAD patients showed reduced functional connectivity strength in right supramarginal gyrus (SMG) and right superior parietal gyrus (SPG) compared with HCs. Further seed-based functional connectivity analysis revealed that GAD patients displayed decreased functional connectivity between right SMG and left fusiform gyrus, inferior temporal gyrus, parahippocampal gyrus, bilateral precuneus and cuneus, and between right SPG and bilateral supplementary motor area and middle cingulate gyrus, as well as between the SMG-based network and the SPG-based network. Moreover, the disrupted intra-network connectivity (i.e., the SMG-based network and the SPG-based network) and inter-network connectivity between the SMG-based network and the SPG-based network accounted for 25.5% variance of the State and Trait Anxiety Inventory (STAI) and 39.5% variance of the trait subscale of STAI. Our findings highlight the abnormal functional architecture in the SMG-based network and the SPG-based network in GAD, providing novel insights into the pathological mechanisms of this disorder. (shrink)

Aesthetic medicine has become a booming industry in the world. However, there are widespread social and health risks posed by aesthetic medicine, including illegal practice, and misleading information from aesthetic medicine institutes. Social media and advertisement play important roles in leading to appearance anxiety among young people nowadays. Regarding the chaotic situation in the aesthetic medical field, there is a fact that the practice of aesthetic medicine has been marginally regulated, even in some developed countries. China has the largest population (...) in the world as well as the large number of aesthetic medical customers. Regarding the protection of people from harm, there is a great challenge for the Chinese government. So, China has enacted the toughest governance these years both on the supply and demand side. Some of the strategies may be useful for health authorities in certain countries. (shrink)

In "The Variation of Chinese Literature and the Formation of World Literature" Shunqing Cao and Lu Zhai discuss how Chinese works of literature entered other countries' literary circles through variation, and became an essential part of world literature. Both ancient Chinese literature and contemporary Chinese literature have undergone textual circulation, language translation and cultural filtering before becoming part of world literature, all of which are the reasons why literary variation occurs. According to Cao and Zhai, the occurrence of (...) variation is a key factor for Chinese literature to become world literature, and an important foundation for the formation of world literature. A country's literature absorbs the characteristics of other countries' literature through variation, thus adapting to the cultural background and reading habits of other countries' readers in terms of language and style, in order to enter the world literature market. Variation may lead to a certain loss of nationality in literary works, and result in significant differences from the original texts. However, the formation of world literature does not come at the cost of eliminating nationality; variation facilitates the formation of world literature. (shrink)

本书对孔子及其思想一百多年来的历史命运,从政治、理论和学术几个方面进行了系统的梳理,材料丰富,史论结合,在一些重要问题上提出了独到见解,有助于读者了解中国近现代思想史、学术史和政治史的发展历程.

Due to the complex behavior of a multiscroll chaotic system, it is a good candidate for the secure communications. In this paper, by adding an additional variable to the modified Lorenz-type system, a new chaotic system that includes only linear and piecewise items but can generate 4n + 4 scroll chaotic attractors via choosing the various values of natural number n is proposed. Its dynamics including bifurcation, multistability, and symmetric coexisting attractors, as well as various chaotic and periodic behaviors, are (...) analyzed by means of attraction basin, bifurcation diagram, dynamic map, phase portrait, Lyapunov exponent spectrum, and C0 complexity in detail. The mechanism of the occurrence for generating multiscroll chaotic attractors is presented. Finally, this multiscroll chaotic system is implemented by using the Altera Cyclone IV EP4CE10F17C8 FPGA. It is found that this FPGA-based design has an advantage of requiring less resources for 0% of the embedded multipliers and 0% of the PLLs of this FPGA are occupied. (shrink)