Ultra-short-term wind speed prediction can assist the operation and scheduling of wind turbines in the short term and further reduce the adverse effects of wind power integration. However, as wind is irregular, nonlinear, and nonstationary, to accurately predict wind speed is a difficult task. To this end, researchers have made many attempts; however, they often use only point forecasting or interval forecasting, resulting in imperfect prediction results. Therefore, in this paper, we developed a prediction system integrating an advanced data preprocessing (...) strategy, a novel optimization model, and multiple prediction algorithms. This combined forecasting system can overcome the inherent disadvantages of the traditional forecasting methods and further improve the prediction performance. To test the effectiveness of the forecasting system, the 10-min and one-hour wind speed sequences from the Sotavento wind farm in Spain were applied for conducting comparison experiments. The results of both the interval forecasting and point forecasting indicated that, in terms of the forecasting capability and stability, the proposed system was better than the compared models. Therefore, because of the minimum prediction error and excellent generalization ability, we consider this forecasting system to be an effective tool to assist smart grid programming. (shrink)
Scientists normally earn less money than many other professions which require a similar amount of training and qualification. The economic theory of marginal utility and cost-benefit analysis can be applied to explain this phenomenon. Although scientists make less money than entertainment stars, the scientists do research work out of their interest and they also enjoy a much higher reputation and social status in some countries.
Sandra Field, Jeffrey Flynn, Stephen Macedo, Longxi Zhang, and Martin Powers discussed Powers’ book China and England: The Preindustrial Struggle for Social Justice in Word and Image at the American Philosophical Association’s 2020 Eastern Division meeting in Philadelphia. The panel was sponsored by the APA’s “Committee on Asian and Asian-American Philosophers and Philosophies” and organized by Brian Bruya.
Ever since the modern times, with successive failure of the Qing Government in wars with foreign countries, discriminatory utterances of western countries towards the Chinese nation have been overflowing gradually. These discriminatory utterances have deeply pricked the Chinese patriotic intellectuals, and further stir up their patriotic enthusiasm in saving the nation from subjugation and ensuring its survival. In the anti-imperialist patriotic movement, discriminatory utterances of modern intellectuals have exhibited obviously two trends of resistance and introspection.
The present article illustrates the well-known affinity between Whitehead’s process philosophy and Chinese thought by mapping the category of the ultimate and the categories of existence in Whitehead’s categoreal scheme onto the Taiji and Bagua diagrams as developed in The Book of Changes, or I Ching. The Taiji-Bagua diagrams are models of organic unity that provide a framework and structure to better understand the category of the ultimate and the categories of existence—particularly how these categories are related to each other. (...) They illustrate more clearly the coherent nature of Whitehead’s speculative philosophy as stated in Process and Reality. (shrink)
Embracing all humanity as one’s own is the core of the modern idea of cosmopolitanism, but the present time with rising tribalism, populism, racism, and narrow-minded nationalism is not propitious for cosmopolitanism. At a time like this, the cosmopolitan effort to see cultures and peoples as close to one another rather than absolutely different becomes all the more important. The comparative study of different cultures and literatures may promote a cosmopolitan stance, and from a comparative perspective, we may draw some (...) ideas from the ancient Chinese philosopher Mencius for a theory of global ethics. *. (shrink)
This paper studies the control of a class of 3D chaotic systems with uncertain parameters and external disturbances. A new method which is referred as the analytical solution approach is firstly proposed for constructing Lyapunov function. Then, for suppressing the trajectories of the 3D chaotic system to its equilibrium point 00,0,0, a novel fast convergence controller containing parameter λ which determines the convergence rate of the system is presented. By using the designed Lyapunov function, the stability of the closed-loop system (...) is proved via the Lyapunov stability theorem. Computer simulations are employed to a new chaotic system to illustrate the effectiveness of the theoretical results. (shrink)
Modern socialist economic reforms which center on the establishment of a commodity based economic system, demand a reconsideration of human nature. Marxism and human sociobiology give different answers to questions about human nature, but neither is complete in itself. It seems timely, therefore, to suggest that a combination of biological understanding with a Marxist-based social understanding would produce a more adequate notion of human nature, thereby helping us to resolve a number of problems posed by reforms currently taking place in (...) socialist countries. We might also hope to face new challenges posed in the future. (shrink)
This article assumes that a profession is a number of individuals in the same occupation voluntarily organized to earn a living by openly serving a moral ideal in a morally-permissible way beyond what law, market, morality, and public opinion would otherwise require. Our question is whether the concept of profession may have a far wider range than the term, so that, for example, pointing out that a certain language lacks a word for “profession” in our sense, is not enough to (...) show that those who speak the language also lack the concept. We believe the survey of 71 Chinese reported here begins to answer that question. This article has four parts. The first describes who was interviewed, how, when, and so on. The second describes some important features of the survey’s questions, explaining how the questions track the concept of profession. The third part reports and interprets the results relevant to our question. The forth defends a tentative answer to the question with which we began—arguing the survey supports the claim that China has a profession of engineering. This article should serve as a “proof of concept”, that is, a model for similar studies around the world both of engineering and of other occupations thought to be professions. (shrink)
Academic integrity policies at 200 institutions of higher education were examined for the presence of academic prohibitions against the nonmedical use of prescription stimulants or any other cognitive enhancing drug. Researchers used online search tools to locate policy handbooks in a stratified random sample of IHE’s drawn from the Integrated Postsecondary Education Data System database, searching for NMUPS/CED use as violations of either academic integrity or alcohol and other drug policies. Of 191 academic integrity policies found online, NMUPS/CED prohibitions were (...) present in only one. However, NMUPS was addressed in all but two of the 200 IHE AOD policies, often with language referencing IHE adherence to federal or state law. NMUPS/CED prohibitions are predominantly absent in IHE academic integrity policies, raising questions about whether colleges and universities are concerned about the use of enhancement drugs as a form of cheating. Implications for fairness, health promotion, and future research are discussed. (shrink)
For repeatable motion of redundant mobile manipulators, the flexible base platform and the redundant manipulator have to be returned to the desired initial position simultaneously after completing the given tasks. To remedy deviations between initial position and desired position of each kinematic joint angle, a special kind of repeatable optimization for kinematic energy minimization based on terminal-time Zhang neural network with finite-time convergence is proposed for inverse kinematics of mobile manipulators. It takes the advantages that each joint of the (...) manipulator is required to return to the desired initial position not considering the initial orientation of itself for realizing repeatable kinematics control. Unlike the existed training methods, such an optimization of kinematic energy scheme based on TTZNN can not only reduce the convergent position error of each joint to zero in finite time, but also improve the convergent precision. Theoretical analysis and verifications show that the proposed optimal kinematic energy scheme accelerates the convergent rate, which is tended to be applied in practical robot kinematics. Simulation results on the manipulator with three mobile wheels substantiate the timeliness and repetitiveness of the proposed optimization scheme. (shrink)
Because of the lack of interaction between seeking mode cats and tracking mode cats in cat swarm optimization, its convergence speed and convergence accuracy are affected. An information interaction strategy is designed between seeking mode cats and tracking mode cats to improve the convergence speed of the CSO. To increase the diversity of each cat, a top-N learning strategy is proposed during the tracking process of tracking mode cats to improve the convergence accuracy of the CSO. On ten standard test (...) functions, the average values, standard deviations, and optimal values of the proposed algorithm with different N values are compared with the original CSO algorithm and the adaptive cat swarm algorithm based on dynamic search. Experimental results show that the global search ability and the convergence speed of the proposed algorithm are significantly improved on all test functions. The proposed two strategies will improve the convergence accuracy and convergence speed of CSO greatly. (shrink)
More than half a century ago, a so-called Third Side appeared in China's political arena. The word "third" signified that its proponents intended to take a "middle way" amid the desperate, life-and-death battle between the Nationalist party and the Communist party. In a 1946 speech delivered at the Tianjin YMCA, entitled "A Political Line of an Intermediate Nature," Zhang Dongsun presented a clear and to-the-point formulation of this "middle way":In the political aspect, we should adopt more from the British (...) and American type of liberalism and democracy, while at the same time adopting, in the economic aspect, more from the Soviet Union's type of planned economy and socialism. From the negative aspect, we should adopt democracy but not capitalism. We should also adopt socialism but not the revolution of proletarian dictatorship. We want freedom but not an everything-goes attitude. We want cooperation but not struggle. Since we do not want an everything-goes attitude, we do not want monopolies by capitalists. Since we do not want struggle, we do not want class struggle. (shrink)
This essay initiates elements of a Daoist stance as regards the basic assumptions and principles involved in debates on multiculturalism. This is to be achieved via an examination of Zhang Taiyan’s 章太炎 mid-term political philosophy, which is shaped by his interpretation and further development of Daoist thinking, especially the notion of no-thing and the idea of “achieving equality by leaving things uneven”. After explicating the basic tenets that point toward a Daoist stance on what is now called multiculturalism, I (...) discuss Zhang’s concrete proposals concerning the relation between the Han 漢 lineage and the other four major ethnic groups in the to-be-established Republic of China. I then investigate Zhang’s unique theory of the state. Lastly, I explore the discordance in Zhang Taiyan’s thinking despite his privileging of Laozi 老子 and Zhuangzi’s 莊子 ideas. (shrink)
Qi is one of the most important concepts in Chinese philosophy and culture, and neo-Confucian Zhang Zai plays a pivotal role in developing the notion. This book provides a thorough and proper understanding of his thoughts.
In this selective overview of scholarship generated by _The Hunger Games_—the young adult dystopian fiction and film series which has won popular and critical acclaim—Zhange Ni showcases various investigations into the entanglement of religion and the arts in the new millennium.
Brittleness is one of the most important reservoir properties for unconventional reservoir exploration and production. Better knowledge about the brittleness distribution can help to optimize the hydraulic fracturing operation and lower costs. However, there are very few reliable and effective physical models to predict the spatial distribution of brittleness. We have developed a machine learning-based method to predict subsurface brittleness by using multidiscipline data sets, such as seismic attributes, rock physics, and petrophysics information, which allows us to implement the prediction (...) without using a physical model. The method is applied on a data set from Tuscaloosa Marine Shale, and the predicted rock physics template is close to the calculated value from conventional inverted elastic parameters. Therefore, the proposed method helps determine areas of the reservoir that have optimal geomechanical properties for successful hydraulic fracturing. (shrink)
Jeffrey conditionalization is a rule for updating degrees of belief in light of uncertain evidence. It is usually assumed that the partitions involved in Jeffrey conditionalization are finite and only contain positive-credence elements. But there are interesting examples, involving continuous quantities, in which this is not the case. Q1 Can Jeffrey conditionalization be generalized to accommodate continuous cases? Meanwhile, several authors, such as Kenny Easwaran and Michael Rescorla, have been interested in Kolmogorov’s theory of regular conditional distributions as a possible (...) framework for conditional probability which handles probability-zero events. However the theory faces a major shortcoming: it seems messy and ad hoc. Q2 Is there some axiomatic theory which would justify and constrain the use of rcds, thus serving as a possible foundation for conditional probability? These two questions appear unrelated, but they are not, and this paper answers both. We show that when one appropriately generalizes Jeffrey conditionalization as in Q1, one obtains a framework which necessitates the use of rcds. It is then a short step to develop a general theory which addresses Q2, which we call the theory of extensions. The theory is a formal model of conditioning which recovers Bayesian conditionalization, Jeffrey conditionalization, and conditionalization via rcds as special cases. (shrink)
The rapidly growing data in many areas, as well as in the biomedical domain, require the assistance of information extraction systems to acquire the much needed knowledge about specific entities such as proteins, drugs, or diseases practically within a short time. Annotated corpora serve the purpose of facilitating the process of building NLP systems. While colossal work has been done in this area for English language, other languages like Arabic seem to lack these resources, especially in the healthcare area. Therefore, (...) in this work, we present a method to develop a silver standard medical corpus for the Arabic language with a dictionary as a minimal supervision tool. The corpus contains 49,856 sentences tagged with 13 entity types corresponding to a subset of UMLS concept types. The evaluation of a subset of corpus showed the efficiency of the method used to annotate it with 90% accuracy. (shrink)
Early and later Confucians, known in Chinese as the “ruists” school of ancient origins, perceived the idea of “harmony” as a fundamental concept that lies at the basis of self-cultivation, society and governance. In modern times this idea still plays in one or another form a dominant note in Chinese politics and social life. The article attempts to search for causes of the significance of “harmony” by focusing on analyzing two pivotal Confucian texts compiled in the Han dynasty, namely, Records (...) of Music [Yue ji 樂記] and Divination of Music [Yue wei 樂緯]. The analysis shows that ruists belonging to Zhou dynasty’s imperial class of music officials, gradually developed the aesthetics of music into a complex idea of "harmony" that contains the highest aesthetical way—“Dao”—which guides both the whole universe as well as the evolution of human society. (shrink)
Although the ethical aspects of transformational leadership have attracted considerable attention, very little is known about followers’ reactions to the moral and immoral conduct of transformational leaders. Against this background, this study examined whether and how transformational leadership interacts with moral and authoritarian leadership behaviors in predicting followers’ in-role and extra-role efforts. Building on attribution theory, we hypothesized that the positive and negative effects of these leadership behaviors would be particularly pronounced for highly transformational leaders given that this leadership style (...) elicits strong attention and sense-making efforts among followers. We tested our model in a sample of 228 individuals comprising 114 leader–follower dyads from a wide range of organizations and industries. In line with our hypotheses, results revealed that for highly transformational leaders, moral leadership behaviors related positively to employees’ in-role and extra-role efforts whereas authoritarian leadership behaviors related negatively to employees’ in-role and extra-role efforts. In contrast, moral and authoritarian leadership behaviors did not significantly affect followers’ reactions to leaders low in transformational leadership. Taken together, these findings suggest that transformational leadership, contrary to its largely positive perception in the literature, can be a rather mixed blessing. Implications for theory, future research, and managerial practice are discussed. (shrink)
A vexing question in Bayesian epistemology is how an agent should update on evidence which she assigned zero prior credence. Some theorists have suggested that, in such cases, the agent should update by Kolmogorov conditionalization, a norm based on Kolmogorov’s theory of regular conditional distributions. However, it turns out that in some situations, a Kolmogorov conditionalizer will plan to always assign a posterior credence of zero to the evidence she learns. Intuitively, such a plan is irrational and easily Dutch bookable. (...) In this paper, we propose a revised norm, Kolmogorov-Blackwell conditionalization, which avoids this problem. We prove a Dutch book theorem and converse Dutch book theorem for this revised norm, and relate our results to those of Rescorla (2018). (shrink)
