In this study, an adaptive output feedback fault tolerant control scheme is proposed for a class of multi-input and multioutput nonlinear systems with multiple constraints. The neural network is adopted to handle the unknown nonlinearity by means of its superior approximation capability. Based on it, the state observer is designed to estimate the unmeasured states, and the nonlinear disturbance observer is constructed to tackle the external disturbances. In addition, the Nussbaum function is utilized to cope with the actuator faults, which (...) are coupled with the unknown control directions. Combining with the Lyapunov theory, a NN-based output feedback FTC law is developed for the MIMO nonlinear systems, and the boundedness of all closed-loop system error signals is proved. Simulation results on the unmanned helicopter are performed to demonstrate the effectiveness of the proposed controller. (shrink)

In this paper, we investigate the ultimate bound set and positively invariant set of a 3D Lorenz-like chaotic system, which is different from the well-known Lorenz system, Rössler system, Chen system, Lü system, and even Lorenz system family. Furthermore, we investigate the global exponential attractive set of this system via the Lyapunov function method. The rate of the trajectories going from the exterior of the globally exponential attractive set to the interior of the globally exponential attractive set is also (...) obtained for all the positive parameters values a,b,c. The innovation of this paper is that our approach to construct the ultimate bounded and globally exponential attractivity sets assumes that the corresponding sets depend on some artificial parameters ; that is, for the fixed parameters of the system, we have a series of sets depending on λ and m. The results contain the known result as a special case for the fixed λ and m. The efficiency of the scheme is shown numerically. The theoretical results may find wide applications in chaos control and chaos synchronization. (shrink)

We examine whether and how CEO foreign experience affects firm’s green innovation. Using a sample of Chinese public companies and hand-collected CEO foreign experience data, we document a positive association between CEO foreign experience and corporate green innovation. Furthermore, consistent with the view that CEOs with foreign experience would play a more significant role when provided with more resources, we find that the positive relationship is more pronounced in less financially constrained firms, in state-owned enterprises, and in less competitive industries. (...) Additional analyses indicate that enhanced environmental ethics and general competency are two potential mechanisms through which CEO foreign experience affects corporate green innovation. Finally, we find that CEO foreign experience is positively related to green innovation quality and internationalization. Collectively, these findings suggest that CEO foreign experience is a significant factor for corporate green innovation in emerging markets. (shrink)

If the Past Hypothesis underlies the arrows of time, what is the status of the Past Hypothesis? In this paper, I examine the role of the Past Hypothesis in the Boltzmannian account and defend the view that the Past Hypothesis is a candidate fundamental law of nature. Such a view is known to be compatible with Humeanism about laws, but as I argue it is also supported by a minimal non-Humean "governing'' view. Some worries arise from the non-dynamical and time-dependent (...) character of the Past Hypothesis as a boundary condition, the intrinsic vagueness in its specification, and the nature of the initial probability distribution. I show that these worries do not have much force, and in any case they become less relevant in a new quantum framework for analyzing time's arrows---the Wentaculus. Hence, the view that the Past Hypothesis is a candidate fundamental law should be more widely accepted than it is now. (shrink)

Recent reports of CRISPR/Cas9 genome editing in parasitic helminths open up new avenues for research on these dangerous pathogens. However, the complex morphology and life cycles inherent to these parasites present obstacles for the efficient application of CRISPR/Cas9‐targeted mutagenesis. This is especially true with the trematode flukes where only modest levels of gene mutation efficiency have been achieved. Current major challenges in the application of CRISPR/Cas9 for study of parasitic worms thus lie in enhancing gene mutation efficiency and overcoming issues (...) involved in host passage so that mutated parasites survive. Strategies developed for CRISPR/Cas9 studies on Caenorhabditis elegans, protozoa and mammalian cells, including novel delivery methods, the choice of selectable markers, and refining mutation precision represent novel tactics whereby these impediments can be overcome. Furthermore, employing CRISPR/Cas9‐mediated gene drive to interfere with vector transmission represents a novel approach for the control of parasitic worms that is worthy of further exploration. (shrink)

本书对自组织理论进行综合性研究,并探讨了关于自然界自组织演化的自然图景和自然观,关于自然科学自组织演化的科学图景和科学观。.

The Great Divide in metaphysical debates about laws of nature is between Humeans, who think that laws merely describe the distribution of matter, and non-Humeans, who think that laws govern it. The metaphysics can place demands on the proper formulations of physical theories. It is sometimes assumed that the governing view requires a fundamental / intrinsic direction of time: to govern, laws must be dynamical, producing later states of the world from earlier ones, in accord with the fundamental direction of (...) time in the universe. In this paper, we propose a minimal primitivism about laws of nature (MinP) according to which there is no such requirement. On our view, laws govern by constraining the physical possibilities. Our view captures the essence of the governing view without taking on extraneous commitments about the direction of time or dynamic production. Moreover, as a version of primitivism, our view requires no reduction / analysis of laws in terms of universals, powers, or dispositions. Our view accommodates several potential candidates for fundamental laws, including the principle of least action, the Past Hypothesis, the Einstein equation of general relativity, and even controversial examples found in the Wheeler-Feynman theory of electrodynamics and retrocausal theories of quantum mechanics. By understanding governing as constraining, non-Humeans who accept MinP have the same freedom to contemplate a wide variety of candidate fundamental laws as Humeans do. (shrink)

Abstract:With the development of literati gardens during the Ming dynasty (1368–1644), the layout and design level of gardens reached an unprecedented height. As the representative of Suzhou gardens, The Humble Administrator's Garden (Zhuozhengyuan, 拙政园, 1530) has unique natural conditions and mature garden design, and its water management art is particularly exquisite. The best-preserved graphic information of The Humble Administrator's Garden are the poems and paintings by Wen Zhengming (文徵明, 1470–1559), including Thirty-One Scenes of The Humble Administrator's Garden (拙政园三十一景图, 1533), thirty (...) landscape poems, and the biography Wang's Humble Administrator's Garden (王氏拙政园记, 1533). As the research object, this article aims to restore the image of The Humble Administrator's Garden by analyzing the water scene of the garden, summarizing its water technique and art, and extracting "Source of inflowing water" (为有源头活水来), "Esteem the mountain, revere the water, imitate the heaven and earth" (敬山畏水, 象天法地), "Fusion of the imitation of nature and the subjective ideas of the artist" (外师造化, 中得心源), and "Free and unfettered, enjoy the joy of leisure" (逍遥自得, 享闲居之乐) as the water aesthetic thoughts of the garden. In addition, this article provides some reference for the current landscape design. (shrink)

A self-perceived lack of training in ethical theories and related pedagogy has kept many engineering faculty members from teaching data ethics, an important aspect of engineering research that has become more salient in recent years. This paper describes the development of a module, which includes concepts, cases, policies, and best practices, to support the teaching of ethical data practice. Based on a user-oriented design approach and a moral literacy framework, the module was designed to be used in different courses and (...) co-curricular activities for students of varying levels of competence to improve their ability to identify and analyze ethical problems associated with the handling of research data. This work seeks to encourage ethical reflection on researchers’ data practice through the idea of an “ecology of data,” which highlights the co-production of data by multiple, interconnected, and heterogeneous actors. This paper also presents online and in-class evidence about the impact and limitations of the module, which is now available for interested researchers and instructors to browse and use. (shrink)

In this paper, I characterize and elaborate on the “Wentaculus” theory, a new approach to time’s arrow in a quantum universe that offers a unified solution to the problems of what gives rise to the arrow of time and what the ontology of quantum mechanics is.

In their forthcoming article, ‘What makes a medical intervention invasive?’ De Marco, Simons, and colleagues explore the meaning and usage of the term ‘invasive’ in medical contexts. They describe a ‘Standard Account’, drawn from dictionary definitions, which defines invasiveness as ‘incision of the skin or insertion of an object into the body’. They then highlight cases wherein invasiveness is employed in a manner that is inconsistent with this account (eg, in describing psychotherapy) to argue that the term invasiveness is often (...) used to explicitly or implicitly reference interventions that do not fall under the standard account. The authors offer an alternative ‘schematic’ definition of invasiveness, whereby medical interventions entail an underlying context-independent property of ‘basic invasiveness’ and may be understood both relative to each other and to a context-specific threshold of what is ‘invasive’. 1 We propose that the meaning of terms such as ‘invasiveness’ is necessarily heterogeneous,... (shrink)

Di 1 bian. Kongzi si xiang ji lun yu -- di 2 bian. Mengzi si xiang ji Meng Xun tong yi -- di 3 bian. Gaozi si xiang -- di 4 bian. Ming li -- di 5 bian. Jiao yu xiu yang Wen hua.

Drawing on the core values of western civilization, the author refines the counterparts in Chinese civilization, summarized as four core principles: duty before freedom, obedience before rights, community before individual, and harmony before conflict. Focusing on guoxue or Sinology as the basis of his approach, the author provides detailed explanations of traditional Chinese values. Recent scholars have addressed the concept of guoxue since the modern age, sorting through it and piecing it together, which has produced an extremely abundant range of (...) information. However, given that the concepts and theories involved have been left largely unanalyzed, this book develops a theoretical treatment of them in several important respects. First, it analyzes the mindset of guoxue, examining the dominant ideas and values of the era from which the term "guoxue" arose, focusing on its connection to early changes and trends in society and culture, and distinguishing three key phases of development. Past scholars mainly had in mind the range of objects studied in guoxue when defining it, and what this book underscores is the meaning of guoxue as a modern body of research. Secondly, it assesses several phases in the modern evolution of the body of guoxue research from the beginning to the end of the 20th century, id est, ending with the later phase of the National Heritage movement. Third and lastly, the book explores the various main modes of modern guoxue, which correspond step by step with the evolutionary phases of guoxue research. (shrink)

Human behavior depends on the ability to effectively introspect about our performance. For simple perceptual decisions, this introspective or metacognitive ability varies substantially across individuals and is correlated with the structure of focal areas in prefrontal cortex. This raises the possibility that the ability to introspect about different perceptual decisions might be mediated by a common cognitive process. To test this hypothesis, we examined whether inter-individual differences in metacognitive ability were correlated across two different perceptual tasks where individuals made judgments (...) about different and unrelated visual stimulus properties. We found that inter-individual differences were strongly correlated between the two tasks for metacognitive ability but not objective performance. Such stability of an individual’s metacognitive ability across different perceptual tasks indicates a general mechanism supporting metacognition independent of the specific task. (shrink)

In the contemporary epistemological literature, peer disagreement is often taken to be an instance of a more general phenomenon of “higher-order evidence.” Correspondingly, its epistemic significance is often thought to turn on the epistemic significance of higher-order evidence in general. This chapter attempts to evaluate this claim, and in doing so to clarify some points of unclarity in the current literature – both about what it is for evidence to be “higher-order,” and about the relationship between disagreement and higher-order evidence. (...) We will begin by considering some candidate definitions of “higher-order evidence,” and offering our own definition that attempts to capture the phenomenon of interest. We will then consider, in light of this definition, whether disagreement and its epistemic significance are best-understood as a kind of higher-order evidence. We’ll argue that although peer disagreement can be epistemically significant qua higher-order evidence, this role doesn’t exhaust its significance, and that it can also serve as straightforward first-order evidence. Finally, we’ll suggest that inattention to this latter point has made broadly conciliatory views about peer disagreement seem somewhat easier to resist than they in fact are. (shrink)

If a benevolent and all-powerful God exists, how can there be so much suffering? Could God have created a better world? Or is evil the price we pay for freedom of the will?

Words and meanings are important categories in the history of Chinese philosophy. The so-called disputes over words and meanings explored the relationship between language and thinking. Generally speaking, these disputes originated in pre-Qin philosophy, flourished during the Wei and Jin dynasties, and declined in the Ming and Qing dynasties, leaving valuable data for philosophical investigations in the history of Chinese philosophy.

Weyl's tile argument purports to show that there are no natural distance functions in atomistic space that approximate Euclidean geometry. I advance a response to this argument that relies on a new account of distance in atomistic space, called "the mixed account," according to which local distances are primitive and other distances are derived from them. Under this account, atomistic space can approximate Euclidean space (and continuous space in general) very well. To motivate this account as a genuine solution to (...) Weyl's tile argument, I argue that this account is no less natural than the standard account of distance in continuous space. I also argue that the mixed account has distinctive advantages over Forrest's (1995) account in response to Weyl's tile argument, which can be considered as a restricted version of the mixed account. (shrink)

In The Humanist Spirit of Daoism, Chen Guying presents a concise overview of his understanding of the meaning and significance of Daoist philosophy. Chen is a leading contemporary Chinese thinker and spokesperson for a new Daoist approach to existential and socio-political issues. He was born in mainland China in 1935, but after having resettled to Taiwan, he received his education there and was a student activist in the 1960s. He became famous in the Chinese-speaking world with his writings (...) on Nietzsche, Laozi and Zhuangzi. At present he is a Professor at Peking University. This volume collects representative essays from the past 25 years which not only outline Chen's interpretation of Daoism as a deeply humanist way of thinking and living, but also show how he employs this philosophy in a critique of totalitarianism and neo-imperialism. (shrink)

Online financial service is an essential part of consumption services provided by companies in modern society. It is vital to figure out the underlying mechanisms that influence online financial service use of college students in China, which is seldom explored. Drawing on the theory of planned behavior, this study explores the effect of personality traits and its joint effect with attitude on online financial service use of college students. Moreover, we examined the interaction effects of key variables in TPB in (...) the context of online financial services. The results indicated that the materialism value of Chinese college students has no direct effect on their intention to use online financial services but exerts an indirect effect through their attitude toward online financial services. College students' attitudes and perceived behavioral control are associated with their subjective norms, and in turn, affect their use intention of online financial services. In addition, perceived risk and perceived usefulness of online financial services also affect use intention through attitude and perceived behavioral control. The discussion of key findings, implications, and conclusions are provided. (shrink)

In _Sino-Theology and the Philosophy of History_ Leopold Leeb presents the ideas of an influential Chinese intellectual, Liu Xiaofeng, whose approach to the question of a Christian theology for China is both controversial and inspiring.

China is currently afflicted by enormous environmental problems. This book, drawing on ancient and modern Chinese environmental thinking, considers what it is that makes an environment a desirable place for living. The book emphasises ideas of beauty, and discusses how these ideas can be applied in natural, agricultural and urban environments in order to produce desirable environments. The book argues that environment is both a product of nature and of human beings, and as such is potentially alterable by culture. The (...) book explores the three aspects of environmental beauty whereby such alteration might be beneficially made: integrated and holistic; ecological and man-made; and authentic and everyday. (shrink)

Fourth-order autonomous nonlinear differential equations can exhibit chaotic properties. In this study, we propose a family of fourth-order chaotic systems with infinite equilibrium points whose equilibria form closed curves of different shapes. First, the phase diagrams and Lyapunov exponents of the system family are simulated. The results show that the system family has complex phase diagrams and dynamic behaviors. Simulation analysis of the Poincarè mapping and bifurcation diagrams shows that the system has chaotic characteristics. The circuit simulation model is constructed (...) and simulated in Multisim. The circuit simulation results coincide with the numerical simulation results, which verifies the circuit feasibility of the system. Then, based on Lyapunov stability theory and the adaptive control method, the synchronous control of the system with infinite equilibria is designed. Numerical simulation results verify that the system synchronization with the adaptive control method is well. Finally, the synchronous drive system is used for image encryption, the response system is used for decryption, and color image encryption is realized by combining deoxyribonucleic acid coding and operating rules. Therefore, this study not only enriched the research on infinite equilibria chaotic systems but also further expanded secure communication technology by combining chaotic synchronization control and DNA coding in image encryption. (shrink)

This exploration aims to study the emotion recognition of speech and graphic visualization of expressions of learners under the intelligent learning environment of the Internet. After comparing the performance of several neural network algorithms related to deep learning, an improved convolution neural network-Bi-directional Long Short-Term Memory algorithm is proposed, and a simulation experiment is conducted to verify the performance of this algorithm. The experimental results indicate that the Accuracy of CNN-BiLSTM algorithm reported here reaches 98.75%, which is at least 3.15% (...) higher than that of other algorithms. Besides, the Recall is at least 7.13% higher than that of other algorithms, and the recognition rate is not less than 90%. Evidently, the improved CNN-BiLSTM algorithm can achieve good recognition results, and provide significant experimental reference for research on learners’ emotion recognition and graphic visualization of expressions in an intelligent learning environment. (shrink)