The study employs discourse analysis as an analytical methodology,integrating stancetaking and positioning theories as theoretical frameworks,analyzing a post published by an in-service teacher and its related comment...The study employs discourse analysis as an analytical methodology,integrating stancetaking and positioning theories as theoretical frameworks,analyzing a post published by an in-service teacher and its related comments on RED,to explore the stancetaking of junior high school English teachers on social platforms in the mainland of China.This paper is expected to provide effective suggestions for enhancing the positive influence of front-line teachers on social media and facilitating the development of their teaching profession amidst the backdrop of educational informatization.展开更多
This study investigated the validity and sensitivity of a custom-made shoelace tensile testing system.The aim was to analyze the distribution pattern of shoelace tension in different positions and under different tigh...This study investigated the validity and sensitivity of a custom-made shoelace tensile testing system.The aim was to analyze the distribution pattern of shoelace tension in different positions and under different tightness levels during running.Mechanical tests were conducted using 16 weights,and various statistical analyses,including linear regression,Bland-Altman plots,coefficient of variation,and intraclass correlation coefficient,were performed to assess the system’s validity.Fifteen male amateur runners participated in the study,and three conditions(loose,comfortable,and tight)were measured during an upright stance.The system utilized VICON motion systems,a Kistler force plate,and a Photoelectric gate speed measurement system.Results showed a linear relationship between voltage and load at the three sensors(R2≥0.9997).Bland-Altman plots demonstrated 95%prediction intervals within±1.96SD from zero for all sensors.The average coefficient of variation for each sensor was less than 0.38%.Intraclass correlation coefficient values were larger than 0.999(p<0.0001)for each sensor.The peak tension of the front shoelace was greater than that of the front and middle when the shoelace was loose and tight.The rear shoelace had the highest tension force.The study also found that shoelace tension varied throughout the gait cycle during running.Overall,this research provides a novel and validated method for measuring shoelace tensile stress,which has implications for developing automatic shoelace fastening systems.展开更多
The task of cross-target stance detection faces significant challenges due to the lack of additional background information in emerging knowledge domains and the colloquial nature of language patterns.Traditional stan...The task of cross-target stance detection faces significant challenges due to the lack of additional background information in emerging knowledge domains and the colloquial nature of language patterns.Traditional stance detection methods often struggle with understanding limited context and have insufficient generalization across diverse sentiments and semantic structures.This paper focuses on effectively mining and utilizing sentimentsemantics knowledge for stance knowledge transfer and proposes a sentiment-aware hierarchical attention network(SentiHAN)for cross-target stance detection.SentiHAN introduces an improved hierarchical attention network designed to maximize the use of high-level representations of targets and texts at various fine-grain levels.This model integrates phrase-level combinatorial sentiment knowledge to effectively bridge the knowledge gap between known and unknown targets.By doing so,it enables a comprehensive understanding of stance representations for unknown targets across different sentiments and semantic structures.The model’s ability to leverage sentimentsemantics knowledge enhances its performance in detecting stances that may not be directly observable from the immediate context.Extensive experimental results indicate that SentiHAN significantly outperforms existing benchmark methods in terms of both accuracy and robustness.Moreover,the paper employs ablation studies and visualization techniques to explore the intricate relationship between sentiment and stance.These analyses further confirm the effectiveness of sentence-level combinatorial sentiment knowledge in improving stance detection capabilities.展开更多
This study examines how writer stance is projected in citation from a comparative perspective.The dataset consisted of 120 qualitative and quantitative research articles(RAs)that were authored by Anglophone and Chines...This study examines how writer stance is projected in citation from a comparative perspective.The dataset consisted of 120 qualitative and quantitative research articles(RAs)that were authored by Anglophone and Chinese applied linguists.ANO?VA tests revealed marked cross-language and cross-paradigmatic differences in stance-based dialogic engagement.展开更多
Highly hydrophilic materials enable rapid water delivery and salt redissolution in solar-driven seawater desalination. However, the lack of independent floatability inhibits heat localization at the air/water interfac...Highly hydrophilic materials enable rapid water delivery and salt redissolution in solar-driven seawater desalination. However, the lack of independent floatability inhibits heat localization at the air/water interface. In nature, seaweeds with internal gas microvesicles can float near the sea surface to ensure photosynthesis. Here, we have developed a seaweed-inspired, independently floatable, but superhydrophilic (SIFS) solar evaporator. It needs no extra floatation support and can simultaneously achieve continuous water pumping and heat concentration. The evaporator resists salt accumulation, oil pollution, microbial corrosion, and protein adsorption. Densely packed hollow glass microbeads promote intrinsic floatability and heat insulation. Superhydrophilic zwitterionic sulfobetaine hydrogel provides a continuous water supply, redissolves the deposited salt, and endows the SIFS evaporator with excellent anti-fouling properties. With its unprecedented anti-contamination ability, this SIFS evaporator is expected to open a new avenue for designing floatable superhydrophilic materials and solving real-world issues of solar steam generation in complex environmental conditions.展开更多
In the task of multi-target stance detection,there are problems the mutual influence of content describing different targets,resulting in reduction in accuracy.To solve this problem,a multi-target stance detection alg...In the task of multi-target stance detection,there are problems the mutual influence of content describing different targets,resulting in reduction in accuracy.To solve this problem,a multi-target stance detection algorithm based on a bidirectional long short-term memory(Bi-LSTM)network with position-weight is proposed.First,the corresponding position of the target in the input text is calculated with the ultimate position-weight vector.Next,the position information and output from the Bi-LSTM layer are fused by the position-weight fusion layer.Finally,the stances of different targets are predicted using the LSTM network and softmax classification.The multi-target stance detection corpus of the American election in 2016 is used to validate the proposed method.The results demonstrate that the Bi-LSTM network with position-weight achieves an advantage of 1.4%in macro average F1 value in the comparison of recent algorithms.展开更多
《中华人民共和国法定计量单位》中规定,物质的量——摩尔为国际单位制(SI)的基本单位。摩尔已在医学领域中广泛应用,在使用摩尔这个单位时必须很好地理解它的定义。 1971年10月第14届国际计量大会(CGPM)物质的量(amount of Substance)...《中华人民共和国法定计量单位》中规定,物质的量——摩尔为国际单位制(SI)的基本单位。摩尔已在医学领域中广泛应用,在使用摩尔这个单位时必须很好地理解它的定义。 1971年10月第14届国际计量大会(CGPM)物质的量(amount of Substance)作为SI的基本单位,将其单位摩尔(mole,简写为mol)作为SI的基本单位,并赋于它两条定义:第一条是:“摩尔是一系统的物质的量。该系统中所包含的基本单元数与0.012千克12碳的原子数目相等”。这一条的第一句话是指明摩尔这个单位是特质量的单位,不是质量的单位;第二句话是定义了摩尔这个单位的大小。展开更多
In the 21st century,soft power has become an important element to evaluate a nation’s comprehensive strength.Meanwhile,as an indispensable part of soft power,national image receives more and more attention on the pol...In the 21st century,soft power has become an important element to evaluate a nation’s comprehensive strength.Meanwhile,as an indispensable part of soft power,national image receives more and more attention on the political stage.Since Chinese President Xi Jinping’s speeches have unique features and greatly reflect positive national images of China,many scholars start to analyze them from diversified perspectives.Based on Du Bois’theory of“the Stance Triangle”and the Indexicality Principle,taking President Xi Jinping’s speech at the opening ceremony of the Belt and Road Forum for International Cooperation for example,this paper expounds how President Xi jinping achieves the evaluation,position,and alignment between the subject and object by means of overt labeling,implicature and presupposition,covert evaluation statement,and ideology-laden linguistic structure,in order to establish China’s national image.Through the analysis,the author intends to figure out how national leaders use various persuasive methods to achieve their political purpose.And the author hopes this thesis can provide a new perspective for further analysis on national leaders’speeches.展开更多
This study aimed to investigate the characteristics of the coupling of the center of pressure (COP) movement and toes in older adults during one-legged standing (OLS). Participants were community dwelling older and yo...This study aimed to investigate the characteristics of the coupling of the center of pressure (COP) movement and toes in older adults during one-legged standing (OLS). Participants were community dwelling older and younger adults. Toe vertical force during the OLS was recorded using a plantar-pressure distribution system, and the vertical forces in the hallux, little toe, and the first and fifth metatarsophalangeal (MP) joints were analyzed. A cross-correlation function was performed to examine the coordination between toes and between COP movement and four regions of the foot. The cross-correlation functions showed no significant difference in coefficients between toes. The OLS duration in the older adults was significantly correlated with the coefficient between the medial-lateral component of the COP and the first MP region. This study suggests that it is important to press the first MP region appropriately relative to COP movement to maintain the OLS.展开更多
Information monopoly of bureaucrats helps them maximize discretionary budget. Public disclosure of budget can alleviate information asymmetry between government and the public and empower public supervision on governm...Information monopoly of bureaucrats helps them maximize discretionary budget. Public disclosure of budget can alleviate information asymmetry between government and the public and empower public supervision on government budget. With information intermediary function and reputational governance function, the media exert a budget intervention effect in the public disclosure of government budget, which further increases the effect of government budget disclosure. This paper investigates how media reports influence "three public expenses"(TPE) budget planning of central government departments by examining media reports on the disclosure of budget and final accounts and using TPE budget as a proxy variable for discretionary budget of bureaucrats. We have reached the following findings:(1) The higher the TPE budget implementation rate, the greater budget growth will be. But this correlation can be restrained by media attention;(2) Different stance of the media may exert different governance effects on TPE budget. Good news about TPE may motivate bureaucrats to restrain the positive impact of TPE budget implementation on budget growth. However, bad news about TPE will exert its budget intervention effect only when administrative governance mechanism intervenes. This study has broadened research on the media's governance effect from the perspective of government budget transparency and verified that under China's unique institutional background, the media may still play a positive role in public sector governance.展开更多
The first ±500 kV project (bipolar),Gezhouba to ShanghaiHVDC project,has been set up and put into operation in1990 in China.The HVDC line is 1000 km long,interconnecting the centraland east electric power network...The first ±500 kV project (bipolar),Gezhouba to ShanghaiHVDC project,has been set up and put into operation in1990 in China.The HVDC line is 1000 km long,interconnecting the centraland east electric power networks of China.It is necessary to measure the extensive earth resistivity展开更多
We recorded locomotor performance of Reeves＇ butterfly lizards（Leiolepis reevesii） on a racetrack and to describe hindlimb kinematic patterns and to evaluate the effect of speed on hindlimb kinematics. The studied ...We recorded locomotor performance of Reeves＇ butterfly lizards（Leiolepis reevesii） on a racetrack and to describe hindlimb kinematic patterns and to evaluate the effect of speed on hindlimb kinematics. The studied lizards predominantly used quadrupedal locomotion at relatively low speeds, but ran bipedally with a digitigrade posture at high speeds. Speed was positively correlated with both stride length and stride frequency, and was negatively correlated with duty factor. Lizards modulated speed probably by a combination of changing frequency and amplitude of limb movements. Within the range of standardized speeds from 50 to 150 cm/s, speed effects on 28 out of a total of 56 kinematic variables were significant. The hip height at footfall increased as speed increased, whereas the amplitude of vertical oscillations of the hip did not vary with speed. The total longitudinal and dorsoventral movements relative to the hip varied with speed for all parts of the limb that were distal to the knee, whereas the lateral movements did not. The knee and ankle angle at footfall varied with speed, but did not at the end of stance. The degree of pelvis rotation during the entire stride cycle did not vary with speed. Our results suggest that pelvic rotation and femoral protraction/retraction have a minor role in modulating speed in L. reevesii.展开更多
Based on Hyland’s(2005)framework of stance,this study explored the distribution of authorial stance used by undergraduates in their BA thesis.Through two self-built corpora,the result of the study shows that the use ...Based on Hyland’s(2005)framework of stance,this study explored the distribution of authorial stance used by undergraduates in their BA thesis.Through two self-built corpora,the result of the study shows that the use of stance markers in the corpora displays the following sequence:hedges>boosters>attitude markers>self-mentions.Further analysis on each stance marker reveals that undergraduates,as novice academic writers,have some problems with appropriately using stance markers in their academic discourses.The results provide some implications for both student writers and teachers of academic writing.展开更多
After 3 successful editions ITF has proven its stance in the MENA region as the Middle East’s premier trade show dedicated to the fashion textile garment and accessories industry.With 8,359 plus trade visitors from 2...After 3 successful editions ITF has proven its stance in the MENA region as the Middle East’s premier trade show dedicated to the fashion textile garment and accessories industry.With 8,359 plus trade visitors from 20 countries,ITF is stepping towards becoming one of the top 10 in the world.INTERNATIONAL TEXTILE FAIR is BACK;bigger&better.EMBARKING ON A展开更多
文摘The study employs discourse analysis as an analytical methodology,integrating stancetaking and positioning theories as theoretical frameworks,analyzing a post published by an in-service teacher and its related comments on RED,to explore the stancetaking of junior high school English teachers on social platforms in the mainland of China.This paper is expected to provide effective suggestions for enhancing the positive influence of front-line teachers on social media and facilitating the development of their teaching profession amidst the backdrop of educational informatization.
文摘This study investigated the validity and sensitivity of a custom-made shoelace tensile testing system.The aim was to analyze the distribution pattern of shoelace tension in different positions and under different tightness levels during running.Mechanical tests were conducted using 16 weights,and various statistical analyses,including linear regression,Bland-Altman plots,coefficient of variation,and intraclass correlation coefficient,were performed to assess the system’s validity.Fifteen male amateur runners participated in the study,and three conditions(loose,comfortable,and tight)were measured during an upright stance.The system utilized VICON motion systems,a Kistler force plate,and a Photoelectric gate speed measurement system.Results showed a linear relationship between voltage and load at the three sensors(R2≥0.9997).Bland-Altman plots demonstrated 95%prediction intervals within±1.96SD from zero for all sensors.The average coefficient of variation for each sensor was less than 0.38%.Intraclass correlation coefficient values were larger than 0.999(p<0.0001)for each sensor.The peak tension of the front shoelace was greater than that of the front and middle when the shoelace was loose and tight.The rear shoelace had the highest tension force.The study also found that shoelace tension varied throughout the gait cycle during running.Overall,this research provides a novel and validated method for measuring shoelace tensile stress,which has implications for developing automatic shoelace fastening systems.
基金supported by the National Social Science Fund of China(20BXW101)。
文摘The task of cross-target stance detection faces significant challenges due to the lack of additional background information in emerging knowledge domains and the colloquial nature of language patterns.Traditional stance detection methods often struggle with understanding limited context and have insufficient generalization across diverse sentiments and semantic structures.This paper focuses on effectively mining and utilizing sentimentsemantics knowledge for stance knowledge transfer and proposes a sentiment-aware hierarchical attention network(SentiHAN)for cross-target stance detection.SentiHAN introduces an improved hierarchical attention network designed to maximize the use of high-level representations of targets and texts at various fine-grain levels.This model integrates phrase-level combinatorial sentiment knowledge to effectively bridge the knowledge gap between known and unknown targets.By doing so,it enables a comprehensive understanding of stance representations for unknown targets across different sentiments and semantic structures.The model’s ability to leverage sentimentsemantics knowledge enhances its performance in detecting stances that may not be directly observable from the immediate context.Extensive experimental results indicate that SentiHAN significantly outperforms existing benchmark methods in terms of both accuracy and robustness.Moreover,the paper employs ablation studies and visualization techniques to explore the intricate relationship between sentiment and stance.These analyses further confirm the effectiveness of sentence-level combinatorial sentiment knowledge in improving stance detection capabilities.
文摘This study examines how writer stance is projected in citation from a comparative perspective.The dataset consisted of 120 qualitative and quantitative research articles(RAs)that were authored by Anglophone and Chinese applied linguists.ANO?VA tests revealed marked cross-language and cross-paradigmatic differences in stance-based dialogic engagement.
基金supported by the National Natural Science Foundation of China(21621004,21961132005,22078238,21908160,and 21805204)the Tianjin Natural Science Foundation(19JCQNJC05100 and 20JCQNJC00170)+1 种基金Young Elite Scientists Sponsorship Program by Tianjin(TJSQNTJ-2018-17)the China Postdoctoral Science Foundation(2019M651041).
文摘Highly hydrophilic materials enable rapid water delivery and salt redissolution in solar-driven seawater desalination. However, the lack of independent floatability inhibits heat localization at the air/water interface. In nature, seaweeds with internal gas microvesicles can float near the sea surface to ensure photosynthesis. Here, we have developed a seaweed-inspired, independently floatable, but superhydrophilic (SIFS) solar evaporator. It needs no extra floatation support and can simultaneously achieve continuous water pumping and heat concentration. The evaporator resists salt accumulation, oil pollution, microbial corrosion, and protein adsorption. Densely packed hollow glass microbeads promote intrinsic floatability and heat insulation. Superhydrophilic zwitterionic sulfobetaine hydrogel provides a continuous water supply, redissolves the deposited salt, and endows the SIFS evaporator with excellent anti-fouling properties. With its unprecedented anti-contamination ability, this SIFS evaporator is expected to open a new avenue for designing floatable superhydrophilic materials and solving real-world issues of solar steam generation in complex environmental conditions.
基金Supported by the National Natural Science Foundation of China(No.61972040)the Science and Technology Projects of Beijing Municipal Education Commission(No.KM201711417011)the Premium Funding Project for Academic Human Resources Development in Beijing Union University(No.BPHR2020AZ03)。
文摘In the task of multi-target stance detection,there are problems the mutual influence of content describing different targets,resulting in reduction in accuracy.To solve this problem,a multi-target stance detection algorithm based on a bidirectional long short-term memory(Bi-LSTM)network with position-weight is proposed.First,the corresponding position of the target in the input text is calculated with the ultimate position-weight vector.Next,the position information and output from the Bi-LSTM layer are fused by the position-weight fusion layer.Finally,the stances of different targets are predicted using the LSTM network and softmax classification.The multi-target stance detection corpus of the American election in 2016 is used to validate the proposed method.The results demonstrate that the Bi-LSTM network with position-weight achieves an advantage of 1.4%in macro average F1 value in the comparison of recent algorithms.
文摘《中华人民共和国法定计量单位》中规定,物质的量——摩尔为国际单位制(SI)的基本单位。摩尔已在医学领域中广泛应用,在使用摩尔这个单位时必须很好地理解它的定义。 1971年10月第14届国际计量大会(CGPM)物质的量(amount of Substance)作为SI的基本单位,将其单位摩尔(mole,简写为mol)作为SI的基本单位,并赋于它两条定义:第一条是:“摩尔是一系统的物质的量。该系统中所包含的基本单元数与0.012千克12碳的原子数目相等”。这一条的第一句话是指明摩尔这个单位是特质量的单位,不是质量的单位;第二句话是定义了摩尔这个单位的大小。
文摘In the 21st century,soft power has become an important element to evaluate a nation’s comprehensive strength.Meanwhile,as an indispensable part of soft power,national image receives more and more attention on the political stage.Since Chinese President Xi Jinping’s speeches have unique features and greatly reflect positive national images of China,many scholars start to analyze them from diversified perspectives.Based on Du Bois’theory of“the Stance Triangle”and the Indexicality Principle,taking President Xi Jinping’s speech at the opening ceremony of the Belt and Road Forum for International Cooperation for example,this paper expounds how President Xi jinping achieves the evaluation,position,and alignment between the subject and object by means of overt labeling,implicature and presupposition,covert evaluation statement,and ideology-laden linguistic structure,in order to establish China’s national image.Through the analysis,the author intends to figure out how national leaders use various persuasive methods to achieve their political purpose.And the author hopes this thesis can provide a new perspective for further analysis on national leaders’speeches.
文摘This study aimed to investigate the characteristics of the coupling of the center of pressure (COP) movement and toes in older adults during one-legged standing (OLS). Participants were community dwelling older and younger adults. Toe vertical force during the OLS was recorded using a plantar-pressure distribution system, and the vertical forces in the hallux, little toe, and the first and fifth metatarsophalangeal (MP) joints were analyzed. A cross-correlation function was performed to examine the coordination between toes and between COP movement and four regions of the foot. The cross-correlation functions showed no significant difference in coefficients between toes. The OLS duration in the older adults was significantly correlated with the coefficient between the medial-lateral component of the COP and the first MP region. This study suggests that it is important to press the first MP region appropriately relative to COP movement to maintain the OLS.
基金sponsored by National Natural Sciences Foundation Programs (Grant No.71172222) and (Grant No.71572194)the Overseas and Hong Kong and Macao Scholars Collaborative Research Program (Grant No.71428008) of the National Natural Sciences Foundation
文摘Information monopoly of bureaucrats helps them maximize discretionary budget. Public disclosure of budget can alleviate information asymmetry between government and the public and empower public supervision on government budget. With information intermediary function and reputational governance function, the media exert a budget intervention effect in the public disclosure of government budget, which further increases the effect of government budget disclosure. This paper investigates how media reports influence "three public expenses"(TPE) budget planning of central government departments by examining media reports on the disclosure of budget and final accounts and using TPE budget as a proxy variable for discretionary budget of bureaucrats. We have reached the following findings:(1) The higher the TPE budget implementation rate, the greater budget growth will be. But this correlation can be restrained by media attention;(2) Different stance of the media may exert different governance effects on TPE budget. Good news about TPE may motivate bureaucrats to restrain the positive impact of TPE budget implementation on budget growth. However, bad news about TPE will exert its budget intervention effect only when administrative governance mechanism intervenes. This study has broadened research on the media's governance effect from the perspective of government budget transparency and verified that under China's unique institutional background, the media may still play a positive role in public sector governance.
文摘The first ±500 kV project (bipolar),Gezhouba to ShanghaiHVDC project,has been set up and put into operation in1990 in China.The HVDC line is 1000 km long,interconnecting the centraland east electric power networks of China.It is necessary to measure the extensive earth resistivity
基金supported by grants from the National Natural Science Foundation of China (project no. 30860046)Nanjing Normal University
文摘We recorded locomotor performance of Reeves＇ butterfly lizards（Leiolepis reevesii） on a racetrack and to describe hindlimb kinematic patterns and to evaluate the effect of speed on hindlimb kinematics. The studied lizards predominantly used quadrupedal locomotion at relatively low speeds, but ran bipedally with a digitigrade posture at high speeds. Speed was positively correlated with both stride length and stride frequency, and was negatively correlated with duty factor. Lizards modulated speed probably by a combination of changing frequency and amplitude of limb movements. Within the range of standardized speeds from 50 to 150 cm/s, speed effects on 28 out of a total of 56 kinematic variables were significant. The hip height at footfall increased as speed increased, whereas the amplitude of vertical oscillations of the hip did not vary with speed. The total longitudinal and dorsoventral movements relative to the hip varied with speed for all parts of the limb that were distal to the knee, whereas the lateral movements did not. The knee and ankle angle at footfall varied with speed, but did not at the end of stance. The degree of pelvis rotation during the entire stride cycle did not vary with speed. Our results suggest that pelvic rotation and femoral protraction/retraction have a minor role in modulating speed in L. reevesii.
基金supported by the Fundamental Research Funds for the Central Universities(WUT:215217002).
文摘Based on Hyland’s(2005)framework of stance,this study explored the distribution of authorial stance used by undergraduates in their BA thesis.Through two self-built corpora,the result of the study shows that the use of stance markers in the corpora displays the following sequence:hedges>boosters>attitude markers>self-mentions.Further analysis on each stance marker reveals that undergraduates,as novice academic writers,have some problems with appropriately using stance markers in their academic discourses.The results provide some implications for both student writers and teachers of academic writing.
文摘After 3 successful editions ITF has proven its stance in the MENA region as the Middle East’s premier trade show dedicated to the fashion textile garment and accessories industry.With 8,359 plus trade visitors from 20 countries,ITF is stepping towards becoming one of the top 10 in the world.INTERNATIONAL TEXTILE FAIR is BACK;bigger&better.EMBARKING ON A
