Working memory performance affects children’s learning. This study examined objective, subjective, and physiological cognitive load while children completed a spatial working memory complex span task. Frist, 80 Taiwanese 11-year-olds who participated in Experiment 1 confirmed the suitability of the materials. Then, 72 Taiwanese 11-year-olds were assigned to high and low complexity groups to participate in Experiment 2 to test the study hypothesis. Children had to recall at the end of a dual-task list and answer two questions regarding the difficulty and (...) mental effort involved in processing and storage. Their pupil diameters were recorded using an eye-tracker. Two-way mixed ANOVA found that the processing requirements and memory load reduced storage and aggravated the subjective CL of storage; the subjective CL of processing was higher under highly complex conditions. Stepwise regression analysis indicated that subjective CL of processing predicted memory performance in low CL conditions, and physiological CL of processing predicted it in high CL conditions. (shrink)

Students often face difficulties and experience negative emotions toward second language learning. The affective tutoring system is a next-generation learning approach that can detect the affective status of learning to increase performance. Therefore, for the purposes of this study, an innovative affective mobile language tutoring system was designed to support Japanese language learning. The effects of AMLTS, along with asynchronous discussion, that were intended to improve performance, were examined using a triangulation method. To investigate the effect on emotion, the proposed (...) AMLTS provides a virtual emotion agent that can interact with users and record emotional events, learning assessments, and the results of the interaction into a database. Learning effectiveness evaluations were conducted via two experiments: prototype evaluation and final evaluation. Sixty-three students, all beginners, were invited to use the AMLTS to learn Japanese. The research results show that the proposed AMLTS affective interaction design significantly improves learner engagement and performance. In the emotion feedback analysis and learning process, AMLTS helped students deepen their understanding of the content, enabled them to clearly understand the content, and to engage in peer interaction and experience positive emotions. In the evaluation of system usability, AMLTS reveals good usability for foreign language acquisition. (shrink)

The longitudinal, qualitative study aimed to explore the lived experiences of Chinese university emerging adults by analyzing their personal life stories, reflective journals, and semi-structured interview data collected over a 2-year period. A qualitative content analysis was used to identify five themes: maturity, academic performance, interpersonal communication skills, social support network, and sense of loss. The study found that the growth in emerging adulthood was dynamic, positive, and multifaceted. The study demonstrated that writing personal life stories, as a practice of (...) meaningful literacy instruction in EFL contexts, helped students to record a memorable past, reconcile with the past, and strive for personal growth. These findings suggest that emerging adults’ personal growth be stressed in foreign language teaching to promote Chinese university emerging adults’ growth and development. It is also suggested that personal life stories be used in foreign language teaching under the guidance of meaningful literacy instruction. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:258 Feminist Studies 47, no. 2. © 2021 by Feminist Studies, Inc. Mei-Hua Chen and Hong-zen Wang Flexible Intimacies in the Global Intimate Economy: Evidence from Taiwan’s Cross-Border Marriages When Lin Ping was interviewed by the first author of this article at a detention center in the southern city of Tainan, Taiwan, in September 2006, she was forty-three. At that time, she had been married to a Taiwanese (...) man for five years and had successfully obtained a permit for employment at a factory, earning NT$27,000 a month for working ten hours a day. However, before having obtained the work permit, Lin managed to find jobs in informal sectors as a cleaner, a care worker, and a stall vendor’s helper, earning NT$15,000 a month. By the time of our interview, Lin had gone to work at a brothel because she could not put up with her husband anymore. Lin’s husband is twenty years older than she is and, as she described their relationship, the huge age gap makes communication between the couple difficult. They fought often and fiercely. During those fights, Lin’s husband would threaten to divorce her and to not renew her application for residency, which would result in her immediate deportation to China. This did happen once when Lin’s husband refused to renew her work permit. As a result, Lin overstayed her visa and lost her job at the factory. Being thus unemployed, Lin had to dip into her savings and risked going into debt. Her dire financial situation caused her anxiety. Losing the regular income provided by her factory job meant not only having nothing to live on but also being unable to send money back home to China. Given that her marriage failed to provide her the work permit she needed, Lin wanted to leave her husband Mei-Hua Chen and Hong-zen Wang 259 and “go out” for her own good. When asked what she thinks of the stigma attached to commercial sex, Lin replied, “I need to be able to feed myself first. But if you don’t have a work permit and a job, it [sex work] is the only way out. So, I thought I would do it.” She continued: “Once I had the money, I would be able to run a small business such as a noodle stall or selling steam dumplings.” Lin Ping’s stories serve to sketch out the interconnectedness between cross-border sex work and cross-border marriage. As her experiences show, cross-border sex work and marriage tend to overlap in certain spheres; however, they are more often than not conceptualized as two separate institutions. Both are grouped under already dichotomized migratory categories such as marriage migrants and economic migrants, real marriage and fake marriage, legal workers and workers without permits, and legal and illegal migrants, etc. Such dichotomization downplays the fact that many marriage migrants, like economic migrants, invest great economic interests in cross-border marriages; it also downplays the fact that migrant sex workers might also be involved in having intimate relationships with someone. Apart from the entanglement of monetary exchange and intimacy, cross-border marriage and cross-border sex work are also parts of a global intimate economy in which the Global North appropriates southern women’s reproductive and intimate labor. Seen in this light, it becomes urgent to theorize how women from the South manage to survive in the global intimate economy by shifting between cross-border marriage and cross-border sex work in the North. Admittedly, such a Global North-and-South framework fits awkwardly when it comes to understanding Taiwan’s situation because economic development is the sole barometer used to define the North and the South, and economically, Taiwan should be in the North camp. Politically, however, due to the majority of nations not recognizing its sovereignty, Taiwan is much more peripheral than most southern countries, let alone China. Therefore, compared to countries in Southeast Asia, Taiwan is economically North but politically South. This semi-peripheral position in the North-South framework, in our view, makes Taiwan a unique case to theorize the global intimate economy. As a tactic... (shrink)

Professional values are standards for action and provide a framework for evaluating behavior. This study examined changes in the professional values of nursing students between their entrance to and graduation from an undergraduate nursing program. A pre- and post-test design was employed. A convenience sample of 94 students from a university in Taiwan was surveyed. Data were collected from students during the sophomore and senior years. Total scores obtained for the revised Nurses Professional Values Scale during the senior year of (...) the nursing program were significantly higher than upon program entry. The ‘caring’ subscale was scored highest at both program entry and graduation, but the pre- and post-test scores were not significantly different from each other. The students scored significantly higher on the ‘professionalism’ and ‘activism’ subscales at post-test than they did at pre-test. Professional values changed in a positive direction between the beginning of the student nurses’ educational experience and their graduation. The results supported the premise that education had a positive effect on these students’ professional values but causality could not be assumed. (shrink)

Globalization is a part of modern life. Sharing a common set of professional nursing values is critical in this global environment. The purpose of this research was to examine the professional values of nursing students from two distinct cultural perspectives. Nurse educators in Taiwan partnered with nurse educators in the United States to compare professional values of their respective graduating nursing students. The American Nurses Association Code of Ethics served as the philosophical framework for this examination. The convenience sample comprised (...) 94 Taiwanese students and 168 US students. Both groups reported high scores on an overall measure of values. They did differ substantially on the relative importance of individual items related to advocacy, competence, education, self-evaluation, professional advancement, and professional associations. Global implications for the collaborative practice of nurses from different cultures working together can be improved by first recognizing and then attending to these differences in value priorities. (shrink)

Clinical studies as well as hundreds of case reports have indicated that Yan Xin Life Science Technology has enabled human participants to live a normal life with little or no food intake for prolonged periods—a state referred to as bigu. Bigu is described in historical records as “taking in qi to avoid food,” and is regarded as a special technique to achieve a long and healthy life. In this study, experiments were designed to study whether cells in vitro can survive (...) without commonly acknowledged essential nutrients after receiving external qi treatments from Dr. Yan Xin, a chief physician and a renowned life scientist. Results reported here indicate that mouse hybridoma cells can survive in Dulbeco’s modified Eagles medium without serum or in phosphate-buffered saline buffer without other nutrient ingredients after qi treatment. These results are the first evidence that a cellular equivalent of the human bigu phenomenon or cellular bigu phenomenon may occur. (shrink)

Anxious major depressive disorder is a common subtype of major depressive disorder; however, its unique neural mechanism is not well-understood currently. Using multimodal MRI data, this study examined common and specific alterations of amygdala subregions between patients with and without anxiety. No alterations were observed in the gray matter volume or intra-region functional integration in either patient group. Compared with the controls, both patient groups showed decreased functional connectivity between the left superficial amygdala and the left putamen, and between the (...) right superficial amygdala and the bilateral anterior cingulate cortex and medial orbitofrontal cortex, while only patients with anxiety exhibited decreased activity in the bilateral laterobasal and superficial amygdala. Moreover, the decreased activity correlated negatively with the Hamilton depression scale scores in the patients with anxiety. These findings provided insights into the pathophysiologic processes of anxious major depressive disorder and may help to develop new and effective treatment programs. (shrink)

Two kinds of probability expressions, verbal and numerical, have been used to characterize the uncertainty that people face. However, the question of whether verbal and numerical probabilities are cognitively processed in a similar manner remains unresolved. From a levels-of-processing perspective, verbal and numerical probabilities may be processed differently during early sensory processing but similarly in later semantic-associated operations. This event-related potential (ERP) study investigated the neural processing of verbal and numerical probabilities in risky choices. The results showed that verbal probability (...) and numerical probability elicited different N1 amplitudes but that verbal and numerical probabilities elicited similar N2 and P3 waveforms in response to different levels of probability (high to low). These results were consistent with a level-of-processing framework and suggest some internal consistency between the cognitive processing of verbal and numerical probabilities in risky choices. Our findings shed light on possible mechanism underlying probability expression and may provide the neural evidence to support the translation of verbal to numerical probabilities (or vice versa). (shrink)

This study draws on Relevance Theory, Conversation Analysis, and Politeness Theory in investigating a full range of discourse functions for hao and dui with reference to recurrent patterns, distributions, and forms of organization in a large corpus of talk. Special emphasis is placed on a comparison of hao and dui in combination with a small subset of discourse particles: in particular hao/hao le/ hao la/hao a/hao ba and dui/dui a/dui le in spoken discourse. We find that both of the markers (...) signal special sequential relatedness in talk and carry information which is relevant in determining the boundaries of conversational exchange. However, in interaction hao is used for expressing acceptance of the other speaker’s move or act, whereas dui conveys acknowledgment of the propositional content of the utterance produced by the other speaker. (shrink)

Discourse marker analysis has been widely studied, leading Fraser to call this subject `a growth market in linguistics'. In our present research, we extended the study of discourse markers to the Chinese marker meiyou, which has traditionally been treated as a negator. The corpus studied here contains 40 conversations, totaling 482'27”. The analytical framework adopted in the study was drawn from van Dijk's model, which mainly consists of a semantic/textual level and a pragmatic/interactional level. A total of 141 occurrences of (...) meiyou were identified as discourse markers in the corpus: 13 of them occur at the textual level and 128 of them at the interactional level. Thus, meiyou occurs more frequently at the interactional level than at the textual level. At the textual level, meiyou introduces an answer to a self-inquiry or self-correction. At the interactional level, meiyou mainly serves as a response to provide information, as a marker of correction/clarification or evasion, and as a response to praise or gratitude. In particular, with respect to meiyou's interactive functions, we use the concepts of preference structure and face-threatening acts to analyze the collected data. We further demonstrate that intersubjectification, a mechanism whereby meanings become more centered on the addressee, is involved in the development of the discourse marker meiyou. (shrink)

In this paper, the stabilization problem of nonholonomic chained-form systems is addressed with uncertain constants. In this paper, the active disturbance rejection control is designed to solve this problem. The proposed control strategy combines extended state observer and adaptive sliding mode controller. The control of nonholonomic chained-form systems with dynamic nonlinear uncertain terms and uncertain constants is first discussed in this paper. In comparison with existing methods, the proposed method in this paper has better performance. It is proved that, with (...) the application of the proposed control strategy, semiglobal finite-time stabilization of the systems is achieved. An example is given to illustrate the effectiveness of the proposed method. (shrink)

UV‐radiation‐induced lesions in DNA result in the formation of: (1) excision gaps (i.e. a lesion is excised, leaving a gap), (2) daughter‐strand gaps (i.e. a lesion can be skipped during replication, leaving a gap), and (3) double‐strand breaks (i.e. the DNA strand opposite a gap can be cut). In Escherichia coli, the recA gene product is involved in repairs of all three types of lesions – repair of daughter‐strand gaps (2) and double‐strand breaks (3) constitutes post‐replication repair. The evidence suggests, (...) furthermore, that recA‐dependent repair of excision gaps (1) produced in DNA replicated prior to UV irradiation (pre‐replication repair) appears to occur by similar mechanisms. (shrink)

This study adopts a stakeholder theory framework to examine determinants of social reporting quality and empirically test the ability of the theory to explain disclosure quality in an emerging economy. Using a sample of 246 listed companies and a hand-collected dataset that included 2 years of data based on survey questions reflecting international disclosure trends, we apply an aggregate measure of quality with five facets to a variety of corporate social responsibility areas. The results support the application and demonstrate that (...) measures of stakeholder power, strategic posture, economic resources, firm size, and media visibility are related to social disclosure quality. This paper adds to the scarce evidence on social reporting in Taiwan and provides a useful method for evaluating disclosure quality. It also illustrates the impact of two dominant foreign stakeholder groups on social disclosures in Taiwan: organizational buyers in the global supply chain and listing and social rating agencies in international capital markets. (shrink)

ObjectivesSeveral studies have examined the effects of repetitive transcranial magnetic stimulation (rTMS) on associative memory (AM) but findings were inconsistent. Here, we aimed to test whether twice-daily rTMS could significantly improve AM.MethodsIn this single-blind, sham-controlled experiment, 40 participants were randomized to receive twice-daily sham or real rTMS sessions for five consecutive days (a total of 16,000 pulses). The stimulation target in left inferior parietal lobule (IPL) exhibiting peak functional connectivity to the left hippocampus was individually defined for each participant. Participants (...) completed both a picture-cued word association task and Stroop test at baseline and 1 day after the final real or sham rTMS session. Effects of twice-daily rTMS on AM and Stroop test performance were compared using two-way repeated measures analysis of variance with main factors Group (real vs. sham) and Time (baseline vs. post-rTMS).ResultsThere was a significant Group × Time interaction effect. AM score was significantly enhanced in the twice-daily real group after rTMS, but this difference could not survive the post hoc analysis after multiple comparison correction. Further, AM improvement in the twice-daily real group was not superior to a previously reported once-daily rTMS group receiving 8,000 pulses. Then, we combined the twice- and once-daily real groups, and found a significant Group × Time interaction effect. Post hoc analysis indicated that the AM score was significantly enhanced in the real group after multiple comparisons correction.ConclusionOur prospective experiment did not show significant rTMS effect on AM, but this effect may become significant if more participants could be recruited as revealed by our retrospective analysis. (shrink)

The RecA family proteins mediate homologous recombination, a ubiquitous mechanism for repairing DNA double‐strand breaks (DSBs) and stalled replication forks. Members of this family include bacterial RecA, archaeal RadA and Rad51, and eukaryotic Rad51 and Dmc1. These proteins bind to single‐stranded DNA at a DSB site to form a presynaptic nucleoprotein filament, align this presynaptic filament with homologous sequences in another double‐stranded DNA segment, promote DNA strand exchange and then dissociate. It was generally accepted that RecA family proteins function throughout (...) their catalytic cycles as right‐handed helical filaments with six protomers per helical turn. However, we recently reported that archaeal RadA proteins can also form an extended right‐handed filament with three monomers per helical turn and a left‐handed protein filament with four monomers per helical turn. Subsequent structural and functional analyses suggest that RecA family protein filaments, similar to the F1‐ATPase rotary motor, perform ATP‐dependent clockwise axial rotation during their catalytic cycles. This new hypothesis has opened a new avenue for understanding the molecular mechanism of RecA family proteins in homologous recombination. BioEssays 30:48–56, 2008. © 2007 Wiley Periodicals, Inc. (shrink)

This study aimed to analyze the mediating effect of tolerance of uncertainty and trait anxiety on future self-continuity and intention to use Internet wealth management systems. A questionnaire survey was distributed online and a total of 388 participants completed questionnaire, The questionnaire included the following scales: Chinese version of the FSC, Intention to Use the Internet Wealth Management, TU, and TA. Pearson correlation was used to investigate the correlation coefficient between variables while the sequential regression method was used to analyze (...) relationship between variables. To analyze the collected data, the SPSS 26.0 was used. A two-step procedure was applied to analyze the mediation effect. Confirmatory factor analysis was conducted to test the measurement model. Afterward, the Maximum Likelihood method was used for path analysis, and the Bias-corrected Bootstrap method was used to investigate determine the estimated value and confidence interval of the mediating effect. To analyze the mediation effect, the Mplus 7.0 was used. The results showed that FSC positively predicted individuals’ Internet wealth management systems. Furthermore, TU and TA played complete serial multiple mediating roles between FSC and IUIWM. The role of TA and TU have negative impact on intention to use. This study provides a theoretical basis in personality psychology that Internet financial product suppliers can use to improve the attractiveness of their products. Product managers can subdivide users according to these personality traits to provide customized products. (shrink)

The postulate that a stalled/collapsed replication fork will be generated when the replication complex encounters a UV‐induced lesion in the template for leading‐strand DNA synthesis is based on the model of semi‐discontinuous DNA replication. A review of existing data indicates that the semi‐discontinuous DNA replication model is supported by data from in vitro studies, while the discontinuous DNA replication model is supported by in vivo studies in Escherichia coli. Until the question of whether DNA replicates discontinuously in one or both (...) strands is clearly resolved, any model building based on either one of the two DNA replication models should be treated with caution. BioEssays 27:633–636, 2005. © 2005 Wiley Periodicals, Inc. (shrink)

This dissertation addresses the roots of fundamental changes in twentieth-century art in China by addressing how the cultural exchange between Europe and China transformed critical conceptions and artistic practices in the field of art. The translation of German aesthetic theories and the French academic training of Chinese artists engendered the conceptual and technical transformation of Chinese art in the early twentieth century. While the notions of pure nudity, artistic salvation, and archaeology of art were introduced from German philosophy into Chinese (...) art, the traditional ideas of art versus craft and artist as moral exemplars were converted. Chinese intellectuals analogized crisis-ridden China in the early 20th century to Germany being occupied by the Napoleon army in 1806. They believed that the superior academic culture, instead of its political and military strengths, was the foundation of the unification of Germany in 1871. The doctrines of German scholars were therefore introduced to China through German-trained Chinese intellectuals, aiming at achieving the modern transition of Chinese society. The implementation of aesthetic education based on German philosophical theories endowed modern artists and their works with the social mission to shape the citizens’ personalities and improve their tastes to establish a liberal and civilized modern Chinese society. Moreover, due to the establishment of the Institut Franco-Chinois in Lyon, more Chinese art students acquired the opportunity to study in Paris, the most important center for new artistic ideas and practices during the early twentieth century. Thus, the conceptual shift in the field of aesthetics was expressed through artists with a French academic training background. This study focuses on examining how the translation of German aesthetic doctrines and the introduction of French (sometimes Italian) artistic techniques contributed to the modern transition of Chinese art. How were German aesthetics translated and disseminated to young Chinese artists in the early twentieth century? How were the German scholars’ theories appropriated to establish new standards for evaluating artists and their works? What were the mechanisms, obstacles and cultural clashes encountered by European-trained Chinese artists in their training and creation processes? How did European-trained Chinese artists respond to these new modern aesthetic doctrines? Each of the five chapters of my dissertation centers on the introduction or transformation of an artistic concept: art versus craft, pure nudity, artistic salvation, and archaeology of art, discussing how these concepts were theoretically and practically formulated in Chinese art. (shrink)

Gender plays an important role in various aspects of second language acquisition, including lexicon learning. Many studies have suggested that compared to males, females are less likely to experience boredom, one of the frequently experienced deactivating negative emotions that may impair language learning. However, the contribution of boredom to gender-related differences in lexicon learning remains unclear. To address this question, here we conducted two experiments with a large sample of over 1,000 college students to explore the relationships between gender differences (...) in boredom and lexicon learning. In Experiment 1, a cohort of 527 participants completed the trait and state boredom scales as well as a novel lexicon learning task without awareness of the testing process. In Experiment 2, an independent cohort of 506 participants completed the same novel lexicon learning task with prior knowledge of the testing procedure. Results from both experiments consistently showed significant differences between female and male participants in the rate of forgetting words and the state boredom scores, with female participants performing better than male participants. Furthermore, differences in state boredom scores partially explained differences in the rate of forgetting words between female and male participants. These findings demonstrate a novel contribution of state boredom to gender differences in lexicon learning, which provides new insights into better language-learning ability in females. (shrink)

The question of what determines brain laterality for auditory cognitive processing is unresolved. Here, we demonstrate a swap of hemisphere dominance from right to left during semantic interpretation of Chinese lexical tones in native speakers using simultaneously recorded mismatch negativity response and behavioral reaction time during dichotic listening judgment. The mismatch negativity, which is a brain wave response and indexes auditory processing at an early stage, indicated right hemisphere dominance. In contrast, the behavioral reaction time, which reflects auditory processing at (...) a later stage, indicated a right ear listening advantage, or left hemisphere dominance. The observed swap of hemisphere dominance would not occur when the lexical tone was substituted with a meaningless pure tone. This swap reveals dependence of hemisphere labor division initially on acoustic and then on functional cues of auditory inputs in the processing from sound to meaning. (shrink)

It is always a delight to see contemporary engagement with the rich insights of Mencius and Xunzi. In the case of Sungmoon Kim’s thoughtful and ambitious book, this delight is further accompanied by a feeling of confidence about future possibilities. Indeed, the analytic style and the conceptual devices Kim adopts in his discussion and reconstruction of these two thinkers’ ideas provide us with a more focused and structured way to notice and appreciate their commonalities and differences. Moreover, he attends to (...) the differences in the social and political contexts these two thinkers were embedded in, as well as their different views regarding human nature and moral psychology. This attention is then followed by his... (shrink)

Yan Xin Life Science Technology-Optimized Caloric Restriction (YXLST-CR) is a unique food abstinence, which suppresses appetite and sensation of hunger while maintaining physiological homeostasis. The authors review the first clinical case study on YXLST-CR, or YXLST-bigu, a 15-day, 24-hour observation in 1987 on a 21-year-old female undergoing YXLST-bigu for several months. The participant took no food or water and conducted normal physical activities. The daily records of body weight, temperature, pulse rate, blood pressure, and daily urine test results showed no (...) abnormalities. Homeostasis was maintained during YXLST-CR. The authors also report serum leptin levels in a group of individuals undergoing YXLST-CR and a control group before and after a 24-hour water-only period. The leptin level prior to the observation for the YXLST-CR group was lower than that for the control group and remained unchanged during the observation, suggesting the possibilities of an established metabolic adaptation. (shrink)

The present study examined the effects of transcranial direct current stimulation using Halo Sport on the time to exhaustion in relation with muscle activities and corticomuscular coupling of agonist and antagonist muscles during a sustained isometric fatiguing contraction performed with the elbow flexors. Twenty healthy male college students were randomly assigned to tDCS group and control group. The two group participants performed two experimental sessions which consisted of pre-fatigue isometric maximal voluntary contraction, sustained submaximal voluntary contractions performed to exhaustion, and (...) post-fatigue MVC with the right elbow flexor muscles. Sham stimulation and tDCS were applied for control and tDCS group participants 20 min prior to the second session test, respectively. MVC strength in pre- and post-fatigue test, TTE, electroencephalogram, and electromyography of biceps brachii and triceps brachii were recorded during the tests. It was found that tDCS using the Halo Sport device significantly increased TTE and thus improved muscular endurance performance. The improvement may be partly related to the improvement of neuromuscular efficiency as reflected by decrease of antagonistic muscle coactivation activities, which may be related to cortical originated central processing mechanism of neuromuscular activities. (shrink)

In computer networks, vertices represent hosts or servers, and edges represent as the connecting medium between them. In localization, some special vertices are selected to locate the position of all vertices in a computer network. If an arbitrary vertex stopped working and selected vertices still remain the resolving set, then the chosen set is called as the fault-tolerant resolving set. The least number of vertices in such resolving sets is called the fault-tolerant metric dimension of the network. Because of the (...) variety of applications of the metric dimension in different areas of sciences, many generalizations were proposed, and fault tolerant is one of them. In this paper, we computed the fault-tolerant metric dimension of triangular snake, ladder, Mobius ladder, and hexagonal ladder networks. It is important to observe that, in all these classes of networks, the fault-tolerant metric dimension and metric dimension differ by 1. (shrink)

Wheels are the key components of a train, and the shape of the wheel flange should be maintained to ensure the security of train operations. As a method to maintain the shape at the cost of the diameter size, reprofiling has significant impacts on the lifecycle of a train. A wheel model is built in this paper based on the analysis of the wheel wear features and datasets from Taiyuan locomotives. With the decision variables T i, T i ′, which (...) describe the reprofiling strategy, we formulate a multiobjective optimization problem simultaneously minimizing the reprofiling numbers and maximizing the serving years. To find the solutions of the multiobjective model, the NSGA-II is extended with an alteration of the crowding distance calculation and genetic operators. The improved NSGA-II performs better than other approaches. Meanwhile, outstanding solutions with longer servicing years and less reprofiling are listed in this paper. Our study reveals the relationship between the diameter, flange thickness, and their individual attrition rates and proposes a wear model, multiobjective model, and improved NSGA-II. Compared with existing reprofiling strategies, the strategy recommended in our work can significantly increase the lifecycle of the wheel coupled with a low repair frequency. (shrink)