We read with great interest the investigations conducted by Pourakbar et al.(2024)on the“Stabilization of clay soil using alkali-activated sewage sludge.”The authors have investigated the feasibility of utilizing al...We read with great interest the investigations conducted by Pourakbar et al.(2024)on the“Stabilization of clay soil using alkali-activated sewage sludge.”The authors have investigated the feasibility of utilizing alkali-activated sewage sludge(AASS)as a binder for stabilizing the clayey soil.Sewage sludge(SS)in varying proportions of 1.5%,2%,2.5%,3.5%,and 4.5%was utilized to prepare geopolymer binders using sodium and potassium-based alkali activators.Furthermore,unconfined compressive strength(UCS)and direct shear tests were conducted to examine the strength development of clayey soil stabilized with AASS.While the study presented some intriguing results,we have identified critical concerns regarding(i)the selection of SS as a precursor for alkali activation,(ii)technical inconsistencies associated with the compaction characteristics and microstructural analysis,and(iii)the feasibility of the proposed methodology for practical applications.Through our discussion,we seek to highlight these issues and provide constructive feedback to advance the understanding of alkali activation processes and their implications for soil stabilization.展开更多
Given the complexity of earthquake forecast and the current limitations in the application of artificial intelligence(AI),we propose a conceptual framework for a novel AI system,HuiShangGPT,intended to act as an exper...Given the complexity of earthquake forecast and the current limitations in the application of artificial intelligence(AI),we propose a conceptual framework for a novel AI system,HuiShangGPT,intended to act as an expert in discussion on the trend of seismicity.This system,still in the conceptual stage,aims to integrate AI into the empirical approaches traditionally used in earthquake forecasting.The proposed HuiShangGPT system would not only assist in the comprehensive analysis of seismic data but also contribute to the expert panel discussions,enhancing the decision-making process.We outline the envisioned functionalities and potential benefits of such a system,while acknowledging the technical and practical challenges that need to be addressed for its future implementation.展开更多
By analyzing the successful case of meteorological support services for the navigation ceremony of Langzhong Airport,the practice experience,existing problems and future improvement directions of aviation meteorologic...By analyzing the successful case of meteorological support services for the navigation ceremony of Langzhong Airport,the practice experience,existing problems and future improvement directions of aviation meteorological support services were analyzed and summarized to provide reference for the airport and its subsequent aviation meteorological support services in the future.展开更多
The Two Sessions-the annual gathering of China’s top legislature,the National People’s Congress(NPC)and the top political advisory body,the National Committee of the Chinese People’s Political Consultative Conferen...The Two Sessions-the annual gathering of China’s top legislature,the National People’s Congress(NPC)and the top political advisory body,the National Committee of the Chinese People’s Political Consultative Conference(CPPCC)-are not just pivotal events in the country’s political calendar.They resonate deeply with ordinary citizens,influencing daily life across the nation.展开更多
We read with great interest the recent article by Erenson(2023)entitled“Dispersion characteristics of clayey soils containing waste rubber particles”.The author has studied the dispersion characteristics of clayey s...We read with great interest the recent article by Erenson(2023)entitled“Dispersion characteristics of clayey soils containing waste rubber particles”.The author has studied the dispersion characteristics of clayey soils containing different percentages of waste rubber particles(WRPs)by performing several tests(viz.consistency limit,linear shrinkage limit,double hydrometer,crumb test and pinhole test)and scanning electron microscopy(SEM)analysis on five clayey(viz.Na-activated bentonite,refined ball clay,Ukrainian kaolin,Avanos kaolin and Afyon clay)samples containing 0%,5%,10%and 15%WRPs.It should be noted that Erenson(2023)has presented some interesting observations,but there are some serious issues that we want to share through this discussion and request the author of the original paper to address them to avoid their persistence in the scientific literature.展开更多
The emergence of various technologies such as terahertz communications,Reconfigurable Intelligent Surfaces(RIS),and AI-powered communication services will burden network operators with rising infrastructure costs.Rece...The emergence of various technologies such as terahertz communications,Reconfigurable Intelligent Surfaces(RIS),and AI-powered communication services will burden network operators with rising infrastructure costs.Recently,the Open Radio Access Network(O-RAN)has been introduced as a solution for growing financial and operational burdens in Beyond 5G(B5G)and 6G networks.O-RAN promotes openness and intelligence to overcome the limitations of traditional RANs.By disaggregating conventional Base Band Units(BBUs)into O-RAN Distributed Units(O-DU)and O-RAN Centralized Units(O-CU),O-RAN offers greater flexibility for upgrades and network automation.However,this openness introduces new security challenges compared to traditional RANs.Many existing studies overlook these security requirements of the O-RAN networks.To gain deeper insights into the O-RAN system and security,this paper first provides an overview of the general O-RAN architecture and its diverse use cases relevant to B5G and 6G applications.We then delve into specifications of O-RAN security threats and requirements,aiming to mitigate security vulnerabilities effectively.By providing a comprehensive understanding of O-RAN architecture,use cases,and security considerations,thisworkserves as a valuable resource for future research in O-RAN and its security.展开更多
HE's tube acupuncture technique was founded by Mr. HE Huiwu, a Master of traditional Chinese medicine(TCM). Based on the theory of Zangfu organs and meridians, it draws on the essence of the academics of doctors i...HE's tube acupuncture technique was founded by Mr. HE Huiwu, a Master of traditional Chinese medicine(TCM). Based on the theory of Zangfu organs and meridians, it draws on the essence of the academics of doctors in the past dynasties, especially the important theory of Huangdi Neijing to guide the clinical practice of acupuncture and moxibustion. This paper introduces the academic thought of HE's tube acupuncture. Mr HE believes that the pathogenesis of vertigo is mainly the first, kidney essence is deficient, and the heart fire burns alone,therefore disharmony occurs between heart and kidney. Secondly, liver and kidney Yin's deficiency, Yin is deficient while Yang is hyperactive or Yin is deficient and wind. Thirdly, the spleen Qi is deficient, Qingyang fails to ascend, and the main Zangfu organs are responsible for the liver, spleen and kidney. In the treatment, it emphasizes the characteristics of TCM paying attention to the whole, syndrome differentiation and treatment, selects the principal acupuncture points of the bladder meridian of foot Taiyang, kidney meridian of foot Shaoyin, hand Jueyin pericardium meridian, heart meridian of hand Shaoyin, include Kunlun(BL60), Yongquan(KI1), Neiguan(PC6), Fuliu(KI7), Daling(PC7),Shenmen(HT7), Shenmai(BL62), Tianzhu(BL10), Baihui(GV20), Beiyu points, etc. Finally, combined with the actual medical records,the clinical effect of HE's tube acupuncture technique in the treatment of vertigo is explained in detail.展开更多
At present,the heavy academic workload of middle school students is a common problem,which is still questioned by parents,concerned by the government,and hotly debated by society.This paper summarizes the following ei...At present,the heavy academic workload of middle school students is a common problem,which is still questioned by parents,concerned by the government,and hotly debated by society.This paper summarizes the following eight aspects:the difficult content of subject courses,excessive class hours,heavy homework burden,complicated exams,overwhelming study materials,fierce subject competition,prevalent off-campus tutoring,and poor physical and mental health.Recognizing these problems can help to optimize the education and teaching environment and achieve a sustainable enrollment rate.展开更多
This article discussed the mechanisms and precautions of abdominal acupuncture from three different perspectives. First, the relationship between Shénquè （神阙 CV 8） and zang-fu and eight extra meridians s...This article discussed the mechanisms and precautions of abdominal acupuncture from three different perspectives. First, the relationship between Shénquè （神阙 CV 8） and zang-fu and eight extra meridians stated in the ancient literature explained that the theory of CV 8 as the theoretical core of abdominal acupuncture therapy had literature support and theoretical evidence; second, with emphasis on the diagnosis and treatment based on differentiation of syndromes, four methods for selecting the points, including the ones according to hologram, meridians and collaterals, the Ba-kuo （八 廓） and three energizer, meanwhile, the origin of method selecting the points according to Three Energizer and clinical experience was also addressed; third, some problems about the manipulation of abdominal acupuncture therapy were put forward, such as selection of depth, direction, needle tool, as well as personal ideas and precautions, in order to ensure the clinical effect.展开更多
The contamination reasons were analyzed form the viewpoints of strain preparation, air system, medium and equipment sterilization and pipeline configura- tion. Moreover, the contamination-preventing measures were defi...The contamination reasons were analyzed form the viewpoints of strain preparation, air system, medium and equipment sterilization and pipeline configura- tion. Moreover, the contamination-preventing measures were defined. We also sum- marized the characteristics of bacteria that contaminated the fermentation, as well as checking methods and remedial measures.展开更多
With changing rural architectural environment as the focus of new rural construction, the paper had pointed out it was lack of researches on color planning of overall structures in new countryside. On this basis, by m...With changing rural architectural environment as the focus of new rural construction, the paper had pointed out it was lack of researches on color planning of overall structures in new countryside. On this basis, by making use of relevant softwares, it had conducted color abstraction on current typical rural appearance; analyzed the color of rural nature, artificial environment and cultural environment in accordance with international standard of Natural Color System; and then concluded color context of rural appearance. It proposed that color control could be conducted on rural appearance from macroscopic, medium and microcosmic perspective by taking advantage of color planning in new rural appearance construction, so as to build a new rural color system, create modern new rural appearance reflecting regional characteristic and integrating with the natural environment, preserve artificial color of traditional ancient villages, coordinate colors in villages with architectures of different ages, finally realizing reshaping of Chinese people's spiritual hometown.展开更多
On the morphological characteristics, growth environment and quality, rarity, and wood characteristics and value of Huanghuali, this paper discusses the development ways of Hainan Huanghuali It is suggested that Halna...On the morphological characteristics, growth environment and quality, rarity, and wood characteristics and value of Huanghuali, this paper discusses the development ways of Hainan Huanghuali It is suggested that Halnan Huanghuali could be well grown by guiding farmers to make full use of wasteland, slopes, scattered land, roadside and other resources; the landscaping greenbelt of the courtyard area and the residential area could be planned with nature as a main consideration for planting Huanghuali; and landscaping-type Huanghuali planting could make full use of local environment and surrounding local resources, highlighting the personalized landscaping greenbelt, forming good transition between residential area and urban space and creating a natural kindly living environment for the residents, so as to play the best ecological, social and economic benefits.展开更多
Class discussion is a kind of multi-dimensional information exchange activity,is an effective way of English teaching.This paper,based on the characteristics of English subject,briefly explains the meaning of the Engl...Class discussion is a kind of multi-dimensional information exchange activity,is an effective way of English teaching.This paper,based on the characteristics of English subject,briefly explains the meaning of the English class discussion,the function,and focuses on how to optimize English classroom discussion.展开更多
Chronic low-back pain(CLBP) is one of the most common pain conditions. Current clinical guidelines for low-back pain recommend acupuncture for CLBP. However, there are very few high-quality acupuncture studies on CLBP...Chronic low-back pain(CLBP) is one of the most common pain conditions. Current clinical guidelines for low-back pain recommend acupuncture for CLBP. However, there are very few high-quality acupuncture studies on CLBP in older adults. Clinical acupuncture experts in the American Traditional Chinese Medicine Association(ATCMA) were interested in the recent grant on CLBP research announced by the National Center for Complementary and Integrative Health. The ATCMA experts held an online discussion on the subject of real-world acupuncture treatments for CLBP in older adults. Seven participants, each with more than 20 years of acupuncture practice, discussed their own unique clinical experience while another participant talked about the potential mechanism of acupuncture in pain management. As a result of the discussion, a picture of a similar treatment strategy emerged across the participants for CLBP in older adults. This discussion shows that acupuncture may have complicated mechanisms in pain management, yet it is effective for the treatment of chronic pain involving maladaptive neuroplasticity;therefore, it should be effective for CLBP in older adults.展开更多
Based on researches made by the author in recent years, discussion is made of the quasi-40-day oscillation (QDO) nature and its characteristic propagation, with emphasis on the Southern Hemisphere mill-latitude quasi-...Based on researches made by the author in recent years, discussion is made of the quasi-40-day oscillation (QDO) nature and its characteristic propagation, with emphasis on the Southern Hemisphere mill-latitude quasi-periodic cold air forcing on the tropical atmosphere quasi-40-day oscillation along with its effect upon the Northern Hemisphere summer monsoon. It is proposed that the interaction between, or lateral coupling of, meridional circulation systems may serve as the mechanism of the oscillation propagation in a meridional direction.展开更多
Fifteen formulae of wave transmission coefficient for submerged breakwaters obtained during last 3 decades are presented, compared, and analyzed in this paper. The dimensionless parameters mainly involved in this disc...Fifteen formulae of wave transmission coefficient for submerged breakwaters obtained during last 3 decades are presented, compared, and analyzed in this paper. The dimensionless parameters mainly involved in this discussion are the relative submerged depth Re/h, relative wave height Rc/Hi, relative rubble size B/D50, relative breakwater width B√ HiL0 and wave breaker index ξ. It indicates that there exist notable differences among the computed results, which mainly originate from the limited experimental conditions and different analytical methods, even though the major tendency keeps similar. It is necessary to conduct more systematic studies to obtain better understanding about the mechanism of wave transmission over submerged breakwaters.展开更多
Teacher_centered classroom teaching makes students to be passivereceiversandunabletouseEnglishasaneffectivetool.ThispaperfocusesonusingdiscussioninEFLclassroomandintroducesthepractisingmethodsofeachstepindetail.Thepap...Teacher_centered classroom teaching makes students to be passivereceiversandunabletouseEnglishasaneffectivetool.ThispaperfocusesonusingdiscussioninEFLclassroomandintroducesthepractisingmethodsofeachstepindetail.ThepaperexpectstofindanewandmoreeffectivepatternthroughanalysisandargumentationtomakestudentsmoreskillfulinusingEnglishanddevelopabetterhabitinclassroomteachingactivities.展开更多
In view of the planning practices of Hexi Village,Chini Town,Huadu District,Guangzhou City,general situation of the village was introduced,"ecological, convenient,high-efficiency,sharable"were taken as princ...In view of the planning practices of Hexi Village,Chini Town,Huadu District,Guangzhou City,general situation of the village was introduced,"ecological, convenient,high-efficiency,sharable"were taken as principles for the village planning.The village planning was elaborated from 4 perspectives:coordination between town planning and village planning,comprehensive village planning,renovation of old village,construction planning of new village.The implementation projects were summarized to discuss village planning.And it was proposed that the village planning should use construction land intensively and demonstrate regional characteristics.展开更多
文摘We read with great interest the investigations conducted by Pourakbar et al.(2024)on the“Stabilization of clay soil using alkali-activated sewage sludge.”The authors have investigated the feasibility of utilizing alkali-activated sewage sludge(AASS)as a binder for stabilizing the clayey soil.Sewage sludge(SS)in varying proportions of 1.5%,2%,2.5%,3.5%,and 4.5%was utilized to prepare geopolymer binders using sodium and potassium-based alkali activators.Furthermore,unconfined compressive strength(UCS)and direct shear tests were conducted to examine the strength development of clayey soil stabilized with AASS.While the study presented some intriguing results,we have identified critical concerns regarding(i)the selection of SS as a precursor for alkali activation,(ii)technical inconsistencies associated with the compaction characteristics and microstructural analysis,and(iii)the feasibility of the proposed methodology for practical applications.Through our discussion,we seek to highlight these issues and provide constructive feedback to advance the understanding of alkali activation processes and their implications for soil stabilization.
基金supported by the National Natural Science Foundation of China(No.U2039207).
文摘Given the complexity of earthquake forecast and the current limitations in the application of artificial intelligence(AI),we propose a conceptual framework for a novel AI system,HuiShangGPT,intended to act as an expert in discussion on the trend of seismicity.This system,still in the conceptual stage,aims to integrate AI into the empirical approaches traditionally used in earthquake forecasting.The proposed HuiShangGPT system would not only assist in the comprehensive analysis of seismic data but also contribute to the expert panel discussions,enhancing the decision-making process.We outline the envisioned functionalities and potential benefits of such a system,while acknowledging the technical and practical challenges that need to be addressed for its future implementation.
文摘By analyzing the successful case of meteorological support services for the navigation ceremony of Langzhong Airport,the practice experience,existing problems and future improvement directions of aviation meteorological support services were analyzed and summarized to provide reference for the airport and its subsequent aviation meteorological support services in the future.
文摘The Two Sessions-the annual gathering of China’s top legislature,the National People’s Congress(NPC)and the top political advisory body,the National Committee of the Chinese People’s Political Consultative Conference(CPPCC)-are not just pivotal events in the country’s political calendar.They resonate deeply with ordinary citizens,influencing daily life across the nation.
文摘We read with great interest the recent article by Erenson(2023)entitled“Dispersion characteristics of clayey soils containing waste rubber particles”.The author has studied the dispersion characteristics of clayey soils containing different percentages of waste rubber particles(WRPs)by performing several tests(viz.consistency limit,linear shrinkage limit,double hydrometer,crumb test and pinhole test)and scanning electron microscopy(SEM)analysis on five clayey(viz.Na-activated bentonite,refined ball clay,Ukrainian kaolin,Avanos kaolin and Afyon clay)samples containing 0%,5%,10%and 15%WRPs.It should be noted that Erenson(2023)has presented some interesting observations,but there are some serious issues that we want to share through this discussion and request the author of the original paper to address them to avoid their persistence in the scientific literature.
基金supported by the Research Program funded by the SeoulTech(Seoul National University of Science and Technology).
文摘The emergence of various technologies such as terahertz communications,Reconfigurable Intelligent Surfaces(RIS),and AI-powered communication services will burden network operators with rising infrastructure costs.Recently,the Open Radio Access Network(O-RAN)has been introduced as a solution for growing financial and operational burdens in Beyond 5G(B5G)and 6G networks.O-RAN promotes openness and intelligence to overcome the limitations of traditional RANs.By disaggregating conventional Base Band Units(BBUs)into O-RAN Distributed Units(O-DU)and O-RAN Centralized Units(O-CU),O-RAN offers greater flexibility for upgrades and network automation.However,this openness introduces new security challenges compared to traditional RANs.Many existing studies overlook these security requirements of the O-RAN networks.To gain deeper insights into the O-RAN system and security,this paper first provides an overview of the general O-RAN architecture and its diverse use cases relevant to B5G and 6G applications.We then delve into specifications of O-RAN security threats and requirements,aiming to mitigate security vulnerabilities effectively.By providing a comprehensive understanding of O-RAN architecture,use cases,and security considerations,thisworkserves as a valuable resource for future research in O-RAN and its security.
基金supported by“New 3+3 Project”Demonstration Research on Inheritance of HE’s Tube Acupuncture Technique“Seven Skills and Five Methods”Project of Beijing Administration of Traditional Chinese Medicine(No.2023-ZYSF-09)Beijing Union University Education Teaching Research and Reform Project“Chinese Medicine Massage Biomechanics Curriculum System Construction”(No.JY2023Y009)。
文摘HE's tube acupuncture technique was founded by Mr. HE Huiwu, a Master of traditional Chinese medicine(TCM). Based on the theory of Zangfu organs and meridians, it draws on the essence of the academics of doctors in the past dynasties, especially the important theory of Huangdi Neijing to guide the clinical practice of acupuncture and moxibustion. This paper introduces the academic thought of HE's tube acupuncture. Mr HE believes that the pathogenesis of vertigo is mainly the first, kidney essence is deficient, and the heart fire burns alone,therefore disharmony occurs between heart and kidney. Secondly, liver and kidney Yin's deficiency, Yin is deficient while Yang is hyperactive or Yin is deficient and wind. Thirdly, the spleen Qi is deficient, Qingyang fails to ascend, and the main Zangfu organs are responsible for the liver, spleen and kidney. In the treatment, it emphasizes the characteristics of TCM paying attention to the whole, syndrome differentiation and treatment, selects the principal acupuncture points of the bladder meridian of foot Taiyang, kidney meridian of foot Shaoyin, hand Jueyin pericardium meridian, heart meridian of hand Shaoyin, include Kunlun(BL60), Yongquan(KI1), Neiguan(PC6), Fuliu(KI7), Daling(PC7),Shenmen(HT7), Shenmai(BL62), Tianzhu(BL10), Baihui(GV20), Beiyu points, etc. Finally, combined with the actual medical records,the clinical effect of HE's tube acupuncture technique in the treatment of vertigo is explained in detail.
基金2023 Project of the National Office of Science Planning Project Management“Research on Effective Measures to Reduce the Heavy Workload of Middle School Students”(23BXJ32640)。
文摘At present,the heavy academic workload of middle school students is a common problem,which is still questioned by parents,concerned by the government,and hotly debated by society.This paper summarizes the following eight aspects:the difficult content of subject courses,excessive class hours,heavy homework burden,complicated exams,overwhelming study materials,fierce subject competition,prevalent off-campus tutoring,and poor physical and mental health.Recognizing these problems can help to optimize the education and teaching environment and achieve a sustainable enrollment rate.
文摘This article discussed the mechanisms and precautions of abdominal acupuncture from three different perspectives. First, the relationship between Shénquè （神阙 CV 8） and zang-fu and eight extra meridians stated in the ancient literature explained that the theory of CV 8 as the theoretical core of abdominal acupuncture therapy had literature support and theoretical evidence; second, with emphasis on the diagnosis and treatment based on differentiation of syndromes, four methods for selecting the points, including the ones according to hologram, meridians and collaterals, the Ba-kuo （八 廓） and three energizer, meanwhile, the origin of method selecting the points according to Three Energizer and clinical experience was also addressed; third, some problems about the manipulation of abdominal acupuncture therapy were put forward, such as selection of depth, direction, needle tool, as well as personal ideas and precautions, in order to ensure the clinical effect.
基金Supported by Rural Area Project Application in the 12th Five-Year Period(2011BAD14B05)National Key Technology Research and Development Program(2012BAC18B01)Key Program for International S&T Cooperation Projects of China(2010DFB64040)~~
文摘The contamination reasons were analyzed form the viewpoints of strain preparation, air system, medium and equipment sterilization and pipeline configura- tion. Moreover, the contamination-preventing measures were defined. We also sum- marized the characteristics of bacteria that contaminated the fermentation, as well as checking methods and remedial measures.
文摘With changing rural architectural environment as the focus of new rural construction, the paper had pointed out it was lack of researches on color planning of overall structures in new countryside. On this basis, by making use of relevant softwares, it had conducted color abstraction on current typical rural appearance; analyzed the color of rural nature, artificial environment and cultural environment in accordance with international standard of Natural Color System; and then concluded color context of rural appearance. It proposed that color control could be conducted on rural appearance from macroscopic, medium and microcosmic perspective by taking advantage of color planning in new rural appearance construction, so as to build a new rural color system, create modern new rural appearance reflecting regional characteristic and integrating with the natural environment, preserve artificial color of traditional ancient villages, coordinate colors in villages with architectures of different ages, finally realizing reshaping of Chinese people's spiritual hometown.
基金Supported by the Special Project for Application Technology Development and Demonstration of Hainan Province(ZDXM2014101)~~
文摘On the morphological characteristics, growth environment and quality, rarity, and wood characteristics and value of Huanghuali, this paper discusses the development ways of Hainan Huanghuali It is suggested that Halnan Huanghuali could be well grown by guiding farmers to make full use of wasteland, slopes, scattered land, roadside and other resources; the landscaping greenbelt of the courtyard area and the residential area could be planned with nature as a main consideration for planting Huanghuali; and landscaping-type Huanghuali planting could make full use of local environment and surrounding local resources, highlighting the personalized landscaping greenbelt, forming good transition between residential area and urban space and creating a natural kindly living environment for the residents, so as to play the best ecological, social and economic benefits.
文摘Class discussion is a kind of multi-dimensional information exchange activity,is an effective way of English teaching.This paper,based on the characteristics of English subject,briefly explains the meaning of the English class discussion,the function,and focuses on how to optimize English classroom discussion.
文摘Chronic low-back pain(CLBP) is one of the most common pain conditions. Current clinical guidelines for low-back pain recommend acupuncture for CLBP. However, there are very few high-quality acupuncture studies on CLBP in older adults. Clinical acupuncture experts in the American Traditional Chinese Medicine Association(ATCMA) were interested in the recent grant on CLBP research announced by the National Center for Complementary and Integrative Health. The ATCMA experts held an online discussion on the subject of real-world acupuncture treatments for CLBP in older adults. Seven participants, each with more than 20 years of acupuncture practice, discussed their own unique clinical experience while another participant talked about the potential mechanism of acupuncture in pain management. As a result of the discussion, a picture of a similar treatment strategy emerged across the participants for CLBP in older adults. This discussion shows that acupuncture may have complicated mechanisms in pain management, yet it is effective for the treatment of chronic pain involving maladaptive neuroplasticity;therefore, it should be effective for CLBP in older adults.
文摘Based on researches made by the author in recent years, discussion is made of the quasi-40-day oscillation (QDO) nature and its characteristic propagation, with emphasis on the Southern Hemisphere mill-latitude quasi-periodic cold air forcing on the tropical atmosphere quasi-40-day oscillation along with its effect upon the Northern Hemisphere summer monsoon. It is proposed that the interaction between, or lateral coupling of, meridional circulation systems may serve as the mechanism of the oscillation propagation in a meridional direction.
文摘Fifteen formulae of wave transmission coefficient for submerged breakwaters obtained during last 3 decades are presented, compared, and analyzed in this paper. The dimensionless parameters mainly involved in this discussion are the relative submerged depth Re/h, relative wave height Rc/Hi, relative rubble size B/D50, relative breakwater width B√ HiL0 and wave breaker index ξ. It indicates that there exist notable differences among the computed results, which mainly originate from the limited experimental conditions and different analytical methods, even though the major tendency keeps similar. It is necessary to conduct more systematic studies to obtain better understanding about the mechanism of wave transmission over submerged breakwaters.
文摘Teacher_centered classroom teaching makes students to be passivereceiversandunabletouseEnglishasaneffectivetool.ThispaperfocusesonusingdiscussioninEFLclassroomandintroducesthepractisingmethodsofeachstepindetail.ThepaperexpectstofindanewandmoreeffectivepatternthroughanalysisandargumentationtomakestudentsmoreskillfulinusingEnglishanddevelopabetterhabitinclassroomteachingactivities.
文摘In view of the planning practices of Hexi Village,Chini Town,Huadu District,Guangzhou City,general situation of the village was introduced,"ecological, convenient,high-efficiency,sharable"were taken as principles for the village planning.The village planning was elaborated from 4 perspectives:coordination between town planning and village planning,comprehensive village planning,renovation of old village,construction planning of new village.The implementation projects were summarized to discuss village planning.And it was proposed that the village planning should use construction land intensively and demonstrate regional characteristics.
