Based on the system dynamic model, a full system dynamics estimation method is proposed for a chain shell magazine driven by a permanent magnet synchronous motor(PMSM). An adaptive extended state observer(AESO) is pro...Based on the system dynamic model, a full system dynamics estimation method is proposed for a chain shell magazine driven by a permanent magnet synchronous motor(PMSM). An adaptive extended state observer(AESO) is proposed to estimate the unmeasured states and disturbance, in which the model parameters are adjusted in real time. Theoretical analysis shows that the estimation errors of the disturbances and unmeasured states converge exponentially to zero, and the parameter estimation error can be obtained from the extended state. Then, based on the extended state of the AESO, a novel parameter estimation law is designed. Due to the convergence of AESO, the novel parameter estimation law is insensitive to controllers and excitation signal. Under persistent excitation(PE) condition, the estimated parameters will converge to a compact set around the actual parameter value. Without PE signal, the estimated parameters will converge to zero for the extended state. Simulation and experimental results show that the proposed method can accurately estimate the unmeasured states and disturbance of the chain shell magazine, and the estimated parameters will converge to the actual value without strictly continuous PE signals.展开更多
Reading English newspapers and magazines is an effective way to help the students get the latest information worldwide and improve English levels. The present article first analyzes the features of the English newspap...Reading English newspapers and magazines is an effective way to help the students get the latest information worldwide and improve English levels. The present article first analyzes the features of the English newspapers and magazines and then proposes making good use of them through such classroom activities as discussing the hot issue and role-playing to provide more authentic situations in which the students can have chances to practice four English skills, achieving the ideal teaching result.展开更多
Little information on cancer coverage rather than newspaper and television is available. Japanese weekly magazines have a circulation of over 2,700,000 per week. To examine how they delivered urogenital cancer informa...Little information on cancer coverage rather than newspaper and television is available. Japanese weekly magazines have a circulation of over 2,700,000 per week. To examine how they delivered urogenital cancer information to the public, cancer-related articles and advertisements in six major Japanese weekly magazines from 2009 to 2010 was analyzed. 1.8% of total articles and advertisements were cancer-related. Prostate cancer (n = 119) was the second-most common topic, following lung cancer (n = 145), whereas only three articles were published on kidney or bladder cancer. The 53 articles on therapies for prostate cancer comprised radiotherapy (n = 29), surgery (n = 16), chemotherapy (n = 4), and others (n = 4). All 42 comments or interviews were cited in the article on prostate cancer, while 26 of them were attributed to only two famous doctors. Although cancer coverage in weekly magazines could be useful to spread information on prostate cancer, we should recognize their considerable bias based on a disproportionate emphasis.展开更多
The study finds that, for Romania, the period 1920-1939 is one without major contradictions. In ＂neutrosophy＂ of renowed American professor F. Smarandache＇s terms, the interwar period was, in Romania, a ＂neutral＂...The study finds that, for Romania, the period 1920-1939 is one without major contradictions. In ＂neutrosophy＂ of renowed American professor F. Smarandache＇s terms, the interwar period was, in Romania, a ＂neutral＂ period. As mediating operators, professional journals reflected the atmosphere of relative tranquility and social peace. From the qualitative analysis of their media discourse, we can see three elements that： （1） the professional journals of Oltenia, as media tools for teachers, priests and folklore （folklorist）, or music enthusiasts （music lovers）, were loyal to their financial supporters; （2） although they served oblique and opposition interests, the communication professional operators have generally not emphasized, perpetuated or generated conflicts, disputes and misunderstandings; and （3） social attitudes promoted by professional magazines in Oltenia was a beneficial, objective one of better understanding and neutrality. The conclusion is that, despite the axiom that progress is generated by contradiction, it shows that professional journals in Oltenia, during 1920-1939, even in the absence of contradictions, namely under neutrality, there have been major advances.展开更多
This work starts from a brief chronological exposition about the emergence and evolution of magazines in Brazil as a means of communication and its subsequent segmentation until arriving at the specialized magazines.A...This work starts from a brief chronological exposition about the emergence and evolution of magazines in Brazil as a means of communication and its subsequent segmentation until arriving at the specialized magazines.An overview of the constitution of the press will be drawn up,with the aim of understanding the historical context of the first periodicals,evolution and maturation until the 1960s and 1970s,which are the historical focus of this article,also considering the magazine Intervalo our object of study,which existed between 1962 and 1973.In Brazil,Editora Abril has marked the evolution of the Brazilian printed media and,to this day,is active with periodicals recognized nationally and internationally.Despite of the historical retrospective,our focus will be on the magazine Intervalo.At this point,it is necessary to emphasize that the history of the weekly has been lost over the years and,after a deep research,we verified the inexistence of a systematized references on the history or editorial characteristics of the publication.It is important to highlight that the magazine’s chronology was rescued by analyzing the digital archive and conducting interviews with journalists and former employees of Editora Abril and Intervalo.We are interested in not only rescuing its history,but also presenting its characteristics,formats,contents,editorial team,writing routine,its importance within the historical context and its contribution to the construction of the media scene of that time.The methodologies used were:bibliographic research,documentary analysis and interviews based on Oral History methodology,proposed by Paul Thompson(1992).展开更多
Magazine advertising as a major source of income, the quality of its operations is critical to the development and survival of the magazine. However, under the new media environment, traditional advertising management...Magazine advertising as a major source of income, the quality of its operations is critical to the development and survival of the magazine. However, under the new media environment, traditional advertising management is no longer adapted to the times, media operators must find their own inadequacies of advertising business, through business innovation to gain a firm foothold in the competition torrent. This paper as the research object of ＂ViVi＇＂ , analyzes the advertising management and the problem under the new media environment. Finally, offer the suggestion for fashion magazines to better development advertising under the new media environment.展开更多
文摘Based on the system dynamic model, a full system dynamics estimation method is proposed for a chain shell magazine driven by a permanent magnet synchronous motor(PMSM). An adaptive extended state observer(AESO) is proposed to estimate the unmeasured states and disturbance, in which the model parameters are adjusted in real time. Theoretical analysis shows that the estimation errors of the disturbances and unmeasured states converge exponentially to zero, and the parameter estimation error can be obtained from the extended state. Then, based on the extended state of the AESO, a novel parameter estimation law is designed. Due to the convergence of AESO, the novel parameter estimation law is insensitive to controllers and excitation signal. Under persistent excitation(PE) condition, the estimated parameters will converge to a compact set around the actual parameter value. Without PE signal, the estimated parameters will converge to zero for the extended state. Simulation and experimental results show that the proposed method can accurately estimate the unmeasured states and disturbance of the chain shell magazine, and the estimated parameters will converge to the actual value without strictly continuous PE signals.
文摘Reading English newspapers and magazines is an effective way to help the students get the latest information worldwide and improve English levels. The present article first analyzes the features of the English newspapers and magazines and then proposes making good use of them through such classroom activities as discussing the hot issue and role-playing to provide more authentic situations in which the students can have chances to practice four English skills, achieving the ideal teaching result.
文摘Little information on cancer coverage rather than newspaper and television is available. Japanese weekly magazines have a circulation of over 2,700,000 per week. To examine how they delivered urogenital cancer information to the public, cancer-related articles and advertisements in six major Japanese weekly magazines from 2009 to 2010 was analyzed. 1.8% of total articles and advertisements were cancer-related. Prostate cancer (n = 119) was the second-most common topic, following lung cancer (n = 145), whereas only three articles were published on kidney or bladder cancer. The 53 articles on therapies for prostate cancer comprised radiotherapy (n = 29), surgery (n = 16), chemotherapy (n = 4), and others (n = 4). All 42 comments or interviews were cited in the article on prostate cancer, while 26 of them were attributed to only two famous doctors. Although cancer coverage in weekly magazines could be useful to spread information on prostate cancer, we should recognize their considerable bias based on a disproportionate emphasis.
文摘The study finds that, for Romania, the period 1920-1939 is one without major contradictions. In ＂neutrosophy＂ of renowed American professor F. Smarandache＇s terms, the interwar period was, in Romania, a ＂neutral＂ period. As mediating operators, professional journals reflected the atmosphere of relative tranquility and social peace. From the qualitative analysis of their media discourse, we can see three elements that： （1） the professional journals of Oltenia, as media tools for teachers, priests and folklore （folklorist）, or music enthusiasts （music lovers）, were loyal to their financial supporters; （2） although they served oblique and opposition interests, the communication professional operators have generally not emphasized, perpetuated or generated conflicts, disputes and misunderstandings; and （3） social attitudes promoted by professional magazines in Oltenia was a beneficial, objective one of better understanding and neutrality. The conclusion is that, despite the axiom that progress is generated by contradiction, it shows that professional journals in Oltenia, during 1920-1939, even in the absence of contradictions, namely under neutrality, there have been major advances.
文摘This work starts from a brief chronological exposition about the emergence and evolution of magazines in Brazil as a means of communication and its subsequent segmentation until arriving at the specialized magazines.An overview of the constitution of the press will be drawn up,with the aim of understanding the historical context of the first periodicals,evolution and maturation until the 1960s and 1970s,which are the historical focus of this article,also considering the magazine Intervalo our object of study,which existed between 1962 and 1973.In Brazil,Editora Abril has marked the evolution of the Brazilian printed media and,to this day,is active with periodicals recognized nationally and internationally.Despite of the historical retrospective,our focus will be on the magazine Intervalo.At this point,it is necessary to emphasize that the history of the weekly has been lost over the years and,after a deep research,we verified the inexistence of a systematized references on the history or editorial characteristics of the publication.It is important to highlight that the magazine’s chronology was rescued by analyzing the digital archive and conducting interviews with journalists and former employees of Editora Abril and Intervalo.We are interested in not only rescuing its history,but also presenting its characteristics,formats,contents,editorial team,writing routine,its importance within the historical context and its contribution to the construction of the media scene of that time.The methodologies used were:bibliographic research,documentary analysis and interviews based on Oral History methodology,proposed by Paul Thompson(1992).
文摘Magazine advertising as a major source of income, the quality of its operations is critical to the development and survival of the magazine. However, under the new media environment, traditional advertising management is no longer adapted to the times, media operators must find their own inadequacies of advertising business, through business innovation to gain a firm foothold in the competition torrent. This paper as the research object of ＂ViVi＇＂ , analyzes the advertising management and the problem under the new media environment. Finally, offer the suggestion for fashion magazines to better development advertising under the new media environment.
