With the rapid development of Internet of Things technology, RFID technology has been widely used in various fields. In order to optimize the RFID system hardware deployment strategy and improve the deployment efficiency, the prediction of the RFID system identification rate has become a new challenge. In this paper, a neighborhood rough set and random forest combination model is proposed to predict the identification rate of an RFID system. Firstly, the initial influencing factors of the RFID system identification rate are (...) reduced using neighborhood rough set theory combined with the principle of heuristic attribute reduction of neighborhood weighted dependency, thus obtaining a kernel factor subset. Secondly, a random forest prediction model is established based on the kernel factor subset, and a confusion matrix is established using out-of-bag data to evaluate the prediction results. The test is conducted under the constructed RFID experimental environment, whose results showed that the model can predict the identification rate of the RFID system in a fast and efficient way, and the classification accuracy can reach 90.5%. It can effectively guide the hardware deployment and communication parameter protocol setting of the system and improve the system performance. Compared with BP neural network and other prediction models, NRS-RF has shorter prediction time and faster calculation speed. Finally, the validity of the proposed model was verified by the RFID intelligent archives management platform. (shrink)

Following the idea of L -fuzzy generalized neighborhood systems as introduced by Zhao et al., we will give the join-complete lattice structures of lower and upper approximation operators based on L -fuzzy generalized neighborhood systems. In particular, as special approximation operators based on L -fuzzy generalized neighborhood systems, we will give the complete lattice structures of lower and upper approximation operators based on L -fuzzy relations. Furthermore, if L satisfies the double negative law, then there exists an order isomorphic mapping (...) between upper and lower approximation operators based on L -fuzzy generalized neighborhood systems; when L -fuzzy generalized neighborhood system is serial, reflexive, and transitive, there still exists an order isomorphic mapping between upper and lower approximation operators, respectively, and both lower and upper approximation operators based on L -fuzzy relations are complete lattice isomorphism. (shrink)

The experience value of online education is a hot topic in both theoretical and practical circles, but research on its mechanism of action is limited. Therefore, this study systematically investigates the relationship between brand image, experience value, and continuance intention through a theoretical analysis of brand image, and discusses the boundary role of effective commitment in it. In this study, 475 users were used to conduct structural equation modeling analysis. The results of the study found that experience value had a (...) positive and significant effect on user continuance intention under the significant influence of brand image, but affective commitment did not play a positive moderating role in the relationship between experience value and continuance intention. This study examines the mechanism of the antecedents and consequences of experience value, and provides a new direction for the construction of online education and the development of online education and marketing strategies. (shrink)

ObjectiveTo elucidate the clinical, radiologic characteristics of Leber’s hereditary optic neuropathy (LHON) associated with the other diseases.Materials and methodsClinical data were retrospectively collected from hospitalized patients with LHON associated with the other diseases at the Neuro-Ophthalmology Department at the Chinese People’s Liberation Army General Hospital (PLAGH) from December 2014 to October 2018.ResultsA total of 13 patients, 24 eyes (10 men and 3 women; mean age, 30.69 ± 12.76 years) with LHON mitochondrial DNA (mtDNA) mutations, were included in the cohort. 14502(5)11778(4)11778 (...) &11696(1)12811(1)11696(1)3460(1). One patient was positive for aquaporin-4 antibody (AQP4-Ab), and two were positive for myelin oligodendrocyte glycoprotein antibody (MOG-Ab). Three patients were associated with idiopathic optic neuritis (ON). Two patients were with compression optic neuropathy. Three patients were with the central nervous system (CNS) diseases. One patient was with proliferative diabetic retinopathy (PDR) and one with idiopathic orbital inflammatory syndrome (IOIS). At the onset, visual acuity (VA) in eighteen eyes was below 0.1, one eye was 0.5, five eyes were above 0.5, while VA in sixteen eyes was below a 0.1 outcome, three eyes experienced moderate vision loss. MRI images showed T2 lesions and enhancement in nine patients who received corticosteroids treatment; additional immune modulators treatment was performed on two patients. None of the patients had relapse during the follow-up time.ConclusionLeber’s hereditary optic neuropathy can be accompanied with multiple-related diseases, especially different subtypes of ON, which were also exhibited with IOIS and compression optic neuropathy for the first time in this cohort. This condition may be a distinct entity with an unusual clinical and therapeutic profile. (shrink)

本文集收入“传统道德文化的继承与批判”、“中国传统文化的现代化意义”、“关于中国传统道德和文化的几个问题”等文章61篇。.

ObjectiveTo investigate the short-term effect of music therapy combined with binaural frequency difference therapy on patients with consciousness disorder.Materials and methodsNinety patients with definite diagnosis of disorders of consciousness were selected. These patients were randomly divided into control group, experiment 1 group and experiment 2 group, with 30 patients in each group. The control group was treated with routine clinical treatment and rehabilitation. In experiment 1 group, music therapy was added to the control group. In experimental group 2, music therapy (...) combined with binaural α frequency difference therapy was added to the control group. All patients were assessed before and after 30 treatments. The assessment items included Glasgow Coma Scale, Coma Recovery Scale revised, electroencephalogram, upper somatosensory evoked potential, and brainstem auditory evoked potential.ResultsBefore treatment, there were no significant differences in GCS score, CRS-R score, USEP, BAEP, and EEG scores among the three groups. After 30 times of treatment, GCS score, CRS-R score, USEP, BAEP, and EEG scores in 3 groups were significantly higher than those before treatment. And the consciousness rate of experimental group 2 was better than experimental group 1, experimental group 1 was better than the control group and the difference was statistically significant.ConclusionMusic therapy combined with binaural α frequency difference therapy is more effective in stimulating DOC patients. (shrink)

The objective of the study is to trace the evolution of costume design in the Song Dynasty, highlighting key aesthetic influences, materials, and techniques employed in clothing creation and to explore the underlying aesthetic principles and thoughts that guided costume creation in the Song Dynasty, including notions of beauty, harmony, and symbolism. This study try to investigate the specific materials and techniques used in creating Song Dynasty costumes and their impact on the overall aesthetic value, considering aspects such as fabric, (...) embroidery, dyeing, and tailoring methods. In the course of the aesthetic study, this study looked very closely at artworks from the Song Dynasty in an effort to comprehend the aesthetic concepts such as beauty, harmony, and symbolism that influenced costume design during that time period. During the materials and techniques investigation, this study used scientific approaches to get a better understanding of the materials that were used in the production of the costumes. Additionally, this study worked with specialists to get a more in-depth examination of the processes used for dyeing, embroidery, and tailoring. According to the findings, the aesthetic ideals that guided costume production underwent a process of evolution during the course of the Song Dynasty. During the early decades of the 20th century, there was an emphasis placed on elegance and harmony with nature. This is shown in the usage of delicate silks and subtle floral designs at the time. When Neo-Confucianism became more popular, ideas of integrity and symmetry began to influence costume design (Table 1 and Table 2). This resulted in color combinations that were more harmonious and the integration of yin-yang symbols.. Pseudo-evidence on silk, sophisticated needlework, state of the art natural coloring procedures and ahead tailoring techniques demonstrate how such components played their particular part towards the attractiveness of cloth products made under Song Dynasty. Firstly this research gives an understanding of the interplay diverse influences such as changing circumstances from historical, cultural and artistic perspectives that fused together to form a rich legacy in beauty and elegance that adds immensely to the understanding of the aesthetic nature of costume design throughout Song Dynasty. (shrink)

Two philosophical problems are thoroughly treated here: (1) how close the philosophical idea of Hong Tae-yong in eighteenth-century Korea is to the non-absolutist Weltanschauung of Chuang-tzu, and (2) how, by means of this non-absolutist idea, Hong was able to question the orthodox sinocentrism that most Korean Neo-Confucianists of the time stubbornly took for granted. Hong felt that Korean intellectuals had to look beyond sinocentrism for a consciousness of their own cultural identity. As a Confucian reformist, he highlights (...) the realization of this cultural identity as the imminently required move to accomplish social reform. (shrink)

Editor's AbstractIn one of the very first reactions to Li Minghui’s criticism of Mainland New Confucianism (MNC), Zeng Yi emphasizes the ties between MNC and Han-dynasty “Classical Learning” (jingxue), as opposed to the basis of Mou Zongsan-style New Confucianism in Song-dynasty Neo-Confucian “Way learning” (Daoxue). He further connects the MNC approach with an institutional, “concrete continuation” of the Confucian tradition, as opposed to the abstract, philosophical approach of Mou Zongsan.This short essay, another of the immediate reactions to Li Minghui's criticism (...) of Mainland New Confucianism, focuses on the distinction between “old” (or traditional) and “new” Confucianism, and their differing relations to liberal democracy. Fang identifies a tension in Li Minghui's attitude toward the “old,” since Li seems to want to have a connection with the tradition but also not to be bound by it. (shrink)

The question of xing has received much attention in the revival of Neo-Confucian philosophy (called Contemporary Neo-Confucianism) in present-day Taiwan, Hong Kong, and China and among scholars of Chinese philosophy in the United States. It also has much to do with a critical consciousness of both the difference and the affinity between the Chinese philosophy of man and morality and the contemporary Western philosophy of human existence and moral virtues. The study of this has great meaning for the development (...) of a global onto-ethics and an onto-ethics of the future of humankind. (shrink)

ArgumentThis paper aims to show how a nineteenth-century Korean scholar's mathematical study reflects the Korean intellectual environment of his time by focusing on the rule of false double position and the method of root extraction. There were two major trends in Korean mathematics of the early nineteenth century: the first was “Tongsan,” literally “Eastern Mathematics,” which largely depended on Chinese mathematics of the Song and Yuan period adopting counting rod calculation; the second trend was Western mathematics, which was transmitted by (...) the Jesuits and their Chinese collaborators from the late sixteenth century. There was also an intellectual transition in late eighteenth-century Korea when mathematics, which had been of only minor interest for Confucian scholars, became an important part of Confucian pursuits. We can gain an insight into the history of mathematics in Korea by examining and understanding Hong Kil-chu's mathematical studies and the context of the academic world of his time. (shrink)

In lieu of an abstract, here is a brief excerpt of the content: Unmasking the Maxim: An Ancient Genre And Why It Matters Now W. ROBERT CONNOR We live surrounded by maxims, often without even noticing them. They are easily dismissed as platitudes, banalities or harmless clichés, but even in an age of big data and number crunching we put them to work almost every day. A Silicon Valley whiz kid says, Move Fast and Break Things. Investors try to Buy (...) Low and Sell High. Investigative reporters Follow the Money. Others Follow their Bliss. The lavish host thinks, The More the Merrier, while the Modernist architect is sure that Less is More. Captains of Industry whisper to themselves, Me First; captains of sinking ships shout, Women and Children First. Be Prepared was the Boy Scouts’ marching song, while the Proud Boys Stand Down and Stand By, awaiting their marching orders. Maxims are perhaps the smallest members in a large family of speech acts, which among the Greeks included proverbs, oracles, riddles, blessings, curses and lamentations. Not all of these continue in use, but maxims have found companions—mottos, mantras, advertising tag lines and jingles, slogans, political rallying cries, hashtags, three- or four-letter acronyms and 280 character tweets from the goddess Twitter. Familiarity, however, can breed contempt, or at least inattentiveness to the full range of their influence. Sometimes what sounds at first like empty verbiage turns into action. Bruce Lee adapted an old Taoist saying when he said, Be Water, and thereby provided what was for a while a surprisingly effective strategy for protesters in Hong Kong. arion 28.3 winter 2021 6 unmasking the maxim Maxims empower, for good or ill. In the hands of bigots or ideologues, they can turn deadly. Sic Semper Tyrannis shouted John Wilkes Booth after shooting Abraham Lincoln. A manufacturer of assault rifles urged potential customers to Earn Your Man Card. How better to earn it than to obey 8chan, a web site favored by white nationalists, with its own maxim, Embrace Infamy. A devotee of the site did just that, perpetrating a mass shooting in El Paso, Texas. Maxims, then, should not be lightly dismissed. Since the ancient Greeks so relished maxims, they should surely be interrogated to help us better understand the power of these often underestimated speech acts. Before turning to the Greeks, however, the English word maxim needs a closer look. english “maxim” english borrowed maxim from a Latin phrase and boiled it down for everyday use. In Latin writings about logic, the expression maxima propositio, biggest proposition, denoted a statement that did not need to be proved, but could provide the basis for proof of other, lesser propositions. This phraseology goes back at least to Boethius in the sixth century of our era. It’s the equivalent of the generalizations that serve as the major premises in syllogistic logic. If this makes maxims sound like the axioms of geometry, that is historically right. The starting points of plane geometry are propositions that deserve to be accepted; even without proof that they are worthy of belief. That’s the meaning of the term axiōma. No one needs to prove that things equal to the same thing are equal to each other. Think about it; after a while it seems self-evident. It is worthy of assent. We might equally well call such an axiom a maxim; indeed, the earliest (1426) attested use of maxim in English is described in the Oxford English Dictionary as “an axiom; a self-evident proposition assumed as a premise in mathematical, or dialectical reasoning.” W. Robert Connor 7 This usage is now obsolete, but Thomas Jefferson understood the idea behind it, since he believed that there were such truths, waiting to be put to work in building a society where all people were equal and possess certain inalienable rights. He did not feel he had to prove these propositions; they were in his view self-evident. In using these ideas in his draft of the Declaration of Independence, he was, in effect, transferring to politics what Euclid had done in geometry. It was a swift, strategic stroke on his part, for, since self-evident truths require no argument or explanation, they focus discussion not on... (shrink)

Individuals voluntarily internalize gender stereotypes and present personality characteristics and behaviors that conform to gender role requirements. The aim of the current study was to explore the reasons people internalize gender stereotypes. We conducted surveys with 317 college students in China to examine the relationship between gender self-stereotyping and life satisfaction. We also analyzed the mediating roles of relational self-esteem and personal self-esteem and the moderation role of gender. The results of path analysis showed that gender self-stereotyping directly affected life (...) satisfaction and indirectly affected life satisfaction through RSE and PSE in a serial pattern; however, the serial mediation model was only significant in the male sample. Higher gender self-stereotyping was associated with male participants’ higher level of RSE and PSE and further correlated with higher life satisfaction. This study addressed the questions: “What are the benefits of gender self-stereotyping?” and “What are the major barriers to counter-stereotyping?” The results enrich our understanding of these issues, especially relative to the collectivist culture in China, and may be used to create more effective interventions to help people break through the stereotypes. (shrink)

Bodies in China uses Chinese philosophy to reframe Western scholarship on gender, body, and aesthetics. Does Confucianism rule out the capacity of women as moral subjects and hence as aesthetic subjects? Do forms of Chinese philosophy contribute or correspond to patriarchal Confucian culture? Can Chinese philosophy provide alternative perspectives for Western feminist scholars? The first section considers theoretical and philosophical discussions of Western traditions and how the ideas offered by Confucians and Daoists can provide alternative body ontologies for critical feminist (...) practices. The second section reviews female aesthetical representations ranging from The Book of Songs to the work of the controversial body artist He Chengyao. The third section traces changing perceptions of femininity from imperial to its current cosmopolitan era using a range of case studies including Ming dynasty literature, Hong Kong women's fashion in the 1960s, and the 2008 Summer Olympics in Beijing. Overall, this book discusses new conceptual models that feminist scholars are using to displace dualism and emancipate notions of the body from Cartesian models and metaphors. (shrink)

This paper is devoted to develop a nonlocal and time-delayed reaction-diffusion model for HIV infection within host cell-to-cell viral transmissions. In a bounded spatial domain, we study threshold dynamics in terms of basic reproduction numberR0for the heterogeneous model. Our results show that ifR0 1, virus will persist in the host environment.

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)

In lieu of an abstract, here is a brief excerpt of the content:The Japan Society for Buddhist-Christian Studies:Report on the 39th Annual Meeting August 18–19, 2021Kunihiko TerasawaThe 2021 annual conference of the Japan Society for Buddhist-Christian Studies was held online by Zoom. Five presentations were given on the theme of "Religion and Literature."August 18 (Three Presentations)First, President of the Japan-SBCS and professor emeritus at Sophia University, Yutaka Tanaka, presented "Hosokawa Garasha (Gracia)," which was about a Kirishitan (Christian) woman martyr in (...) the sixteenth century (1563–1600 ce) in Japan. Garasha was a wife of the feudal lord Hosokawa in Kyushu. The enemy attacked Garasha's castle. Instead of being killed by enemies, for the sake of honor, she chose to be killed by ritual suicide by her own vassals. Garasha's servants wanted to die with her according to tradition, but she let them run away. The servants testified about her death to Jesuit missionaries. According to the missionaries, Garasha chose to be killed by her vassals because it was honorable as the wife of Lord Hosokawa. If she would have chosen to run away, her husband would have become anti-Christian, persecuting missionaries, and believers. In this way, she became a martyr. According to missionaries, Garasha always loved reading the Imitatio Christi longing for the experience of Christ's cross.Tanaka explained the story of Garasha was spread in the sixteenth–seventeenth-century Europe through Jesuit missionaries. This story was composed to become an opera of Mulier Fortis (a brave lady) and played at the palace of Vienna in 1698.Second, Kunihiko Terasawa, an associate professor at Wartburg College, presented about his research in South Korea and Hong Kong during his sabbatical in 2019–2020. Terasawa's research project was titled "Interreligious/Transnational Solidarity of Religion as Resistance to Ultranationalist Populism in East Asia and Pacific Rim." In South Korea, he was a visiting professor at Sogang University, a Jesuit college, focused on how reconciliation could be possible between Korea and Japan through Buddhist-Christian dialogue. Terasawa visited churches, temples, Christian/Buddhist universities, and Seoul National University for discussions with youth and scholars, and presented four times during his time. He also interviewed comfort women and visited the Sodemon prison that the Japanese' occupation government built. Terasawa was [End Page 389] eventually interviewed by a national daily newspaper for their piece, titled, "The Improvement of Korea-Japan Relationship through Repentance and Forgiveness."Terasawa was also a visiting professor at Hang Seng University of Hong Kong and taught a course on "Asian Religions and Society." Terasawa interviewed students, scholars, and religious leaders, and found that many Christians students are involved in democratic movements. However, it has not been easy to create solidarity between Christianity and Buddhism for democratic movements. Hong Kong Buddhists have had resentment toward Christianity due to the British Hong Kong government's leniency toward Christianity. The Buddhists, therefore, are more inclined to support the current Hong Kong government backed by the Chinese Communist government. The Buddhists appear to be politically indifferent, focusing on inner mindfulness or meditations. Thus, Hong Kong students and professors are focused less on past resentments and more on the future, and thus are vital in creating solidarity among Christians, Buddhists, and Muslims for democracy and human rights.Third, Yoshio Tsuruoka, a professor emeritus at Tokyo University, presented "How to read the poems of St. John the Cross with reference to the 'language' philosophy of Shizuteru Ueda." Ueda was a professor at Kyo to University, specializing in the philosophies of Nishida Kitaro and Meister Eckhart. Tsuruoka explained St. John the Cross'sjourney, most notably, how he became a mystic in his relation to Teresa de Ávila and ended up writing poems during his confinement time. His poems are "songs of love,""dark night," and "fire of love," and symbolize the romantic relationship between lover and loved without particular nouns. This love relationship of "I"–"Thou" implies his love relationship with God. Tsuruoka explored the love language of "I"–"Thou" of John the Cross which indicates the essence of language. Language is not just a written word or descriptive one, but an utterance from a human subject of person to the "other" person in relationship. That is why... (shrink)

The Democratic Republic of Congo has vast natural resources, many of which are regularly exploited by the electronics industry. Unfortunately, in addition to these resources, there are widespread human rights abuses committed by armed groups entrenched in the eastern part of the Democratic Republic of Congo. These armed groups are using profits from these minerals as a source of funding. Their human rights abuses have led to a growing humanitarian interest in the region and prompted the international community to action. (...) This paper explores the conflicts in the Democratic Republic of Congo, provides an understanding of the link between human rights abuses and conflict minerals, and interprets and critiques the legal actions of the international community. (shrink)

Background This study assessed patient perceptions of the Physician Payments Sunshine Act and opinions toward physicians who receive gifts and/or payments from pharmaceutical or medical device companies. Methods During their office visit, patients attending different specialty clinics volunteered to complete our survey. The survey asks if the patient knows what the Sunshine Act is, then asks questions on 5-point response scales to assess the patient's opinions toward physicians who receive compensation from companies, their self-rated knowledge of physician compensation, and how (...) they believe this compensation affects the cost of care. Results Over 13 months, 523 responses were collected: 8.6% of patients reported having knowledge of the Sunshine Act, 56.8% rated their knowledge of physician compensations as “poor,” and 67.1% agreed with the statement that patients should be aware of the compensation physicians receive. When asked how their opinion toward their physician would change if they learned the physician received free meals or gifts from companies, 58.9% replied “not at all,” and 36.11% of patients did not believe their cost of care would increase if their physician received compensation from companies. Conclusions Most patients were unfamiliar with the Sunshine Act, and believe their knowledge of physician compensation is poor. Over half of the respondents would not change their opinion of their physician based on knowledge of their physician receiving payments/gifts from companies, and over one-third of respondents did not believe such compensation increased the cost of care. The majority of respondents agreed that patients should be aware of payments/gifts to physicians. (shrink)

This paper firstly designs a five-dimensional model of learners’ characteristics and a three-dimensional model of English reading resources’ characteristics in a fragmented learning environment through literature research. At the same time, to make the learning resources meet the characteristics of fragmented learning time and space, the English Level 4 reading resources are reasonably designed and segmented to adapt to the needs of learners’ mobile fragmented learning. Then, combined with machine learning algorithms, an adaptive recommendation model of learning resources in English (...) fragmented reading is constructed. The algorithm-based adaptive recommendation algorithm for English fragmented reading resources is designed. Based on the generated decision trees, the expression rules are parsed to achieve adaptive pushing of resources. The results of this study show that adaptive recommendation of learning resources in English fragmented reading can help teachers to develop future resource recommendation strategies through effective data collection to adaptively push resources that are close to learners’ individual needs. The use of mobile by English learners to learn to read in a fragmented learning context enables targeted training in weak areas of English reading, thus enhancing different aspects of learners’ reading skills. (shrink)

The multicultural experience offers the intriguing possibility for an empirical examination of how free-energy principles explain dynamic cultural behaviors and pragmatic cultural phenomena and a challenging but decisive test of thinking through other minds predictions. We highlight that TTOM needs to treat individuals as active cultural agents instead of passive learners.

Intern physicians are generally more burdened by stress than the general population. This cross-sectional study aimed to evaluate the current situation regarding burnout and explore its association with the self-evaluation of competence among Chinese dental interns. A self-administered anonymous survey was conducted on 91 dental interns in the Peking University School of Stomatology, from August 2019 to June 2020. It consisted of a psychological stress questionnaire, including burnout and self-evaluation of clinical competence. The Wilcoxon signed rank test was used to (...) determine the differences between self-evaluation scores of clinical competence. Results showed average scores for emotional exhaustion, depersonalization, and personal accomplishment of 22.22 ± 9.04, 8.16 ± 5.21, and 36.08 ± 7.76, respectively. Dental clinical technology was considered more useful than other clinical competencies, and there was a correlation between its importance and the stress caused by its deficiency. Significant associations were found between stress due to a lack of dental clinical technology and high emotional exhaustion. Burnout was common among the dental interns, which may be a valuable finding. Among the six different aspects of clinical competence, “dental clinical technology” represented the most stressful item. Strengthening pre-clinical training and promptly conducting targeted training in the early clinical process may be considered as decompression measures. (shrink)

A superheterodyne receiver is a type of device universally used in a variety of electronics and information systems. Fault detection and diagnosis for superheterodyne receivers are therefore of critical importance, especially in noise environments. A general purpose fault detection and diagnosis scheme based on observers and residual error analysis was proposed in this study. In the scheme, two generalized regression neural networks are utilized for fault detection, with one as an observer and the other as an adaptive threshold generator; faults (...) are detected by comparing the residual error and the threshold. Then, time and frequency domain features are extracted from the residual error for diagnosis. A probabilistic neural network acts as a classifier to realize the fault diagnosis. Finally, to mimic electromagnetic environments with noise interference, simulation model under different fault conditions with noise interferences is established to test the effectiveness and robustness of the proposed fault detection and diagnosis scheme. Results of the simulation experiments proved that the presented method is effective and robust in simulated electromagnetic environments. (shrink)