This paper presents the survey and assessment of the estimation techniques on hydrodynamic impact. The description and definition of hydrodynamic impact are presented, and the categorization of prediction techniques a...This paper presents the survey and assessment of the estimation techniques on hydrodynamic impact. The description and definition of hydrodynamic impact are presented, and the categorization of prediction techniques and the difficulties are discussed. Analysis theories and numerical simulation techniques are reviewed and the characteristics of those theories and approaches are analyzed. The efforts are made to pinpoint the advantages and disadvantages. Recommendations for further research and development are made.展开更多
In rolling process, the rolling force is an important parameter. The precision of the predicted rolling force will directly affect the precision of the finished product. By using adaptive control theory and fusing the...In rolling process, the rolling force is an important parameter. The precision of the predicted rolling force will directly affect the precision of the finished product. By using adaptive control theory and fusing the measured and predicted data, the precision of the predicted rolling force is gradually improved. This system has been used in plant for more than one year, and the result of the application shows that the system has steady and reliable performance, and high precision.展开更多
In order to make a more effective use of the data from regional digital seismograph networks and to promote the study on shear wave splitting and its application to earthquake stress-forecasting, SAM software system, ...In order to make a more effective use of the data from regional digital seismograph networks and to promote the study on shear wave splitting and its application to earthquake stress-forecasting, SAM software system, i.e., the software on systematic analysis method of shear wave splitting has been developed. This paper introduces the design aims, system structure, function and characteristics about the SAM software system and shows some graphical interfaces of data input and result output. Lastly, it discusses preliminarily the study of shear wave splitting and its application to earthquake forecasting.展开更多
Objectives:This study aimed to explore the reporting of workplace violence against nurses and the reasons why they did not reported.Methods:A self-designed questionnaire regarding workplace violence and reporting was ...Objectives:This study aimed to explore the reporting of workplace violence against nurses and the reasons why they did not reported.Methods:A self-designed questionnaire regarding workplace violence and reporting was used to conduct a cross-sectional survey on nurses who submitted a manuscript to a Chinese nursing journal from 2016 to 2017.A total of 324 nurses agreed to participate in this study and 266 participants from 165 hospitals in 72 cities returned questionnaires.Results:A total of 172 nurses(64.7%)experienced violent incidents during the past year.Of these incidents,45.5%were reported;and the reporting rate of physical assaults(69.0%)was higher than those of verbal abuse(36.9%),threatening behavior(51.7%),and sexual harassment(60.0%).Formal reporting accounted for 25.4%(15.4%in written form and 10.0%through a computer-assisted reporting system).Almost half of the nurses(49.6%)stated that the hospital had no reporting system or they were uncertain about the reporting system.For reasons of not reporting,51.9%of the nurses were unware of how and what types of violence to report,and 50.6%of the nurses believed that the hospital paid greater attention to patients rather than staff.Conclusions:A clear definition of workplace violence and reporting procedures,establishment of a facile system for reporting,and supervisory support following a reporting are urgently required.展开更多
A new path planning method for mobile robots in globally unknown environment with moving obstacles is pre- sented. With an autoregressive (AR) model to predict the future positions of moving obstacles, and the predict...A new path planning method for mobile robots in globally unknown environment with moving obstacles is pre- sented. With an autoregressive (AR) model to predict the future positions of moving obstacles, and the predicted position taken as the next position of moving obstacles, a motion path in dynamic uncertain environment is planned by means of an on-line real-time path planning technique based on polar coordinates in which the desirable direction angle is taken into consideration as an optimization index. The effectiveness, feasibility, high stability, perfect performance of obstacle avoidance, real-time and optimization capability are demonstrated by simulation examples.展开更多
It is discussed in this paper the capability requirements of modern communication industry for smart pipe or Network Intelligence Capability Enhancement (NICE), Domestic and international researches on smart pipe ar...It is discussed in this paper the capability requirements of modern communication industry for smart pipe or Network Intelligence Capability Enhancement (NICE), Domestic and international researches on smart pipe are elaborated in the essay as well.展开更多
A statistical downscaling approach based on multiple-linear-regression(MLR) for the prediction of summer precipitation anomaly in southeastern China was established,which was based on the outputs of seven operational ...A statistical downscaling approach based on multiple-linear-regression(MLR) for the prediction of summer precipitation anomaly in southeastern China was established,which was based on the outputs of seven operational dynamical models of Development of a European Multi-model Ensemble System for Seasonal to Interannual Prediction(DEMETER) and observed data.It was found that the anomaly correlation coefficients(ACCs) spatial pattern of June-July-August(JJA) precipitation over southeastern China between the seven models and the observation were increased significantly;especially in the central and the northeastern areas,the ACCs were all larger than 0.42(above 95% level) and 0.53(above 99% level).Meanwhile,the root-mean-square errors(RMSE) were reduced in each model along with the multi-model ensemble(MME) for some of the stations in the northeastern area;additionally,the value of RMSE difference between before and after downscaling at some stations were larger than 1 mm d-1.Regionally averaged JJA rainfall anomaly temporal series of the downscaling scheme can capture the main characteristics of observation,while the correlation coefficients(CCs) between the temporal variations of the observation and downscaling results varied from 0.52 to 0.69 with corresponding variations from-0.27 to 0.22 for CCs between the observation and outputs of the models.展开更多
An advanced ocean observatory has been established in Lunenburg Bay of Nova Scotia, Canada as part of an interdisciplinary research project of marine environmental prediction. The development of a high-resolution coas...An advanced ocean observatory has been established in Lunenburg Bay of Nova Scotia, Canada as part of an interdisciplinary research project of marine environmental prediction. The development of a high-resolution coastal circulation model is one of important components of the observatory. The model horizontal resolution is 60 m and the vertical resolution is about 1 m. The coastal circulation model is used to simulate the semi-diurnal tidal circulation and associated nonlinear dynamics with the M2 forcing specified at the model open boundaries. The model is also used to simulate the storm-induced circulation in the bay during Hurricane Juan in September 2003, with the model forcing to be the combination of tides and remotely generated waves specified at the model open boundaries and wind stress applied at the sea surface. The model results demonstrate strong interactions between the local wind stress, tidal forcing, and remotely generated waves during this period. Comparison of model results with the surface elevation and current observations demonstrates that the coastal circulation model has reasonable skills in simulating the tidal and storm-induced circulation in the bay.展开更多
Immediate cutting and logging of mixed conifer/broadleaves species in a man-made forest crossed by fire in 2009 in the Arci Mountain in Sardinia can not guarantee as the best post-fire regeneration. The study case rep...Immediate cutting and logging of mixed conifer/broadleaves species in a man-made forest crossed by fire in 2009 in the Arci Mountain in Sardinia can not guarantee as the best post-fire regeneration. The study case reports the differences in the density and in the height of seedlings. The release of damaged Pinus halepensis Mill. stems seems to confirm the tree seeder role of this species.展开更多
A nested-model system is constructed by embedding the regional climate model RegCM3 into a general circulation model for monthly-scale regional climate forecast over East China. The systematic errors are formulated fo...A nested-model system is constructed by embedding the regional climate model RegCM3 into a general circulation model for monthly-scale regional climate forecast over East China. The systematic errors are formulated for the region on the basis of 10-yr (1991-2000) results of the nested-model system, and of the datasets of the Climate Prediction Center (CPC) Merged Analysis of Precipitation (CMAP) and the temperature analysis of the National Meteorological Center (NMC), U.S.A., which are then used for correcting the original forecast by the system for the period 2001-2005. After the assessment of the original and corrected forecasts for monthly precipitation and surface air temperature, it is found that the corrected forecast is apparently better than the original, suggesting that the approach can be applied for improving monthly-scale regional climate dynamical forecast.展开更多
Objective.To analyze the clinical characteris tics of peripartum cardiomyopathy a nd to evaluate the different factors that influence the prognosis of the peripartum cardiomyopathy.Method.A retrospective review was un...Objective.To analyze the clinical characteris tics of peripartum cardiomyopathy a nd to evaluate the different factors that influence the prognosis of the peripartum cardiomyopathy.Method.A retrospective review was undertak en on records of women who were diagnosed with peripartum cardiomyopathy at Peking Union Medi cal College Hospital between Jan.1983and May 1999.Results.During the research period,only 16p regnant women were documented as peripartum cardiomyopa-thy.Some of the women undertook ultr asonic cardiographic(UCG)examination that showed decreased s ystolic function.Seven women were complica ted with pregnancy induced hyperten sion.Three died of disseminated intravascular coagulation,embolism and cardiogenic shock respectively.Conclusion.Early diagnosis of the peripartum ca rdiomyopathy is extremely important.The UCG can pro-vide helpful information on disease progression or regression.展开更多
The judicious and timely use of silence within worship is becoming increasingly recognised as a crucially important aspect of its performance. This article suggests that Samuel Beckett's Waiting for Godot has much to...The judicious and timely use of silence within worship is becoming increasingly recognised as a crucially important aspect of its performance. This article suggests that Samuel Beckett's Waiting for Godot has much to offer liturgists about silence's dramatic potential and its ability to alert others to a contemplative mode of being. I refute the predominant way of seeing the play as an absurdist text and indicate that a more persuasive reading would situate it within a contemplative hermeneutics which gives due weight to silence as an ontological phenomenon. One key to appreciating this interpretation is to see the play against the backdrop of the Christian contemplative tradition. Thus, the article, besides encouraging liturgists to pay attention to dramatists also suggests that dramatists might draw from religion's insights and history.展开更多
We develop a descriptive framework of the components of intellectual capital (IC) in annual reports and investigate the effects of disclosure of IC on market capitalization.We use content analysis to analyze the annua...We develop a descriptive framework of the components of intellectual capital (IC) in annual reports and investigate the effects of disclosure of IC on market capitalization.We use content analysis to analyze the annual reports of a sample of Fortune 100 listed companies in 2006 announced by Chinese Academy of Social Sciences.We select the 49 listed companies for content analysis of their 226 annual reports over the five-year period of 2001-2005.There is a highly significant and positive correlation between IC disclosure and market capitalization.In china,some high quality listed companies have existed IC information and increased year after year.More and more listed companies disclose their IC information spontaneity in structure capital,customer capital,and human capital,although Ministry of Finance only give the criterion on structure.There exists significant difference between industries when using ICR to analyze the competitive power.展开更多
In this paper, the spatial-temporal gravity variation patterns of the northeastern margin of Qinghal-Xizang (Tibet) Plateau in 1992 - 2001 are modeled using bicubic spline interpolation functions and the relations o...In this paper, the spatial-temporal gravity variation patterns of the northeastern margin of Qinghal-Xizang (Tibet) Plateau in 1992 - 2001 are modeled using bicubic spline interpolation functions and the relations of gravity change with seismicity and tectonic movement are discussed preliminarily. The results show as follows: ① Regional gravitational field changes regularly and the gravity abnormity zone or gravity concentration zone appears in the earthquake preparation process; ②In the significant time period, the gravity variation shows different features in the northwest, southeast and northeast parts of the surveyed region respectively, with Lanzhou as its boundary;③The gravity variation distribution is basically identical to the strike of tectonic fault zone of the region, and the contour of gravity variation is closely related to the fault distribution.展开更多
We examine the relation between managerial ability and management forecast accuracy. We base our analysis on S&P 500 Composite Index constituents for the period of 2006-2012. Data were collected from Thomson Reuteurs...We examine the relation between managerial ability and management forecast accuracy. We base our analysis on S&P 500 Composite Index constituents for the period of 2006-2012. Data were collected from Thomson Reuteurs, Compustat and Demerjian, Lev, and McVay (2012). We find that forecast accuracy is positively associated with managerial ability in the case of sales forecasts. Specifically, more able managers are associated with lower magnitude's forecast errors in the case of sales forecasts. Additional analysis finds that managerial ability is immaterial to EPS figures' forecast accuracy, i.e., EPS forecasts appear not to be affected by manager's superiority. Regarding sales forecasts, the results are consistent with the assertion that managers impact the quality of the delivered management forecasts. Regarding EPS forecasts, the results are in alignment with Demerjian, Lev, Lewis, and McVay (2013) who highlighted that managerial ability is an ability score related to the entire management team.展开更多
基金Supported by the National Natural Science Foundation of China No.10572041 and No.50779008
文摘This paper presents the survey and assessment of the estimation techniques on hydrodynamic impact. The description and definition of hydrodynamic impact are presented, and the categorization of prediction techniques and the difficulties are discussed. Analysis theories and numerical simulation techniques are reviewed and the characteristics of those theories and approaches are analyzed. The efforts are made to pinpoint the advantages and disadvantages. Recommendations for further research and development are made.
文摘In rolling process, the rolling force is an important parameter. The precision of the predicted rolling force will directly affect the precision of the finished product. By using adaptive control theory and fusing the measured and predicted data, the precision of the predicted rolling force is gradually improved. This system has been used in plant for more than one year, and the result of the application shows that the system has steady and reliable performance, and high precision.
文摘In order to make a more effective use of the data from regional digital seismograph networks and to promote the study on shear wave splitting and its application to earthquake stress-forecasting, SAM software system, i.e., the software on systematic analysis method of shear wave splitting has been developed. This paper introduces the design aims, system structure, function and characteristics about the SAM software system and shows some graphical interfaces of data input and result output. Lastly, it discusses preliminarily the study of shear wave splitting and its application to earthquake forecasting.
文摘Objectives:This study aimed to explore the reporting of workplace violence against nurses and the reasons why they did not reported.Methods:A self-designed questionnaire regarding workplace violence and reporting was used to conduct a cross-sectional survey on nurses who submitted a manuscript to a Chinese nursing journal from 2016 to 2017.A total of 324 nurses agreed to participate in this study and 266 participants from 165 hospitals in 72 cities returned questionnaires.Results:A total of 172 nurses(64.7%)experienced violent incidents during the past year.Of these incidents,45.5%were reported;and the reporting rate of physical assaults(69.0%)was higher than those of verbal abuse(36.9%),threatening behavior(51.7%),and sexual harassment(60.0%).Formal reporting accounted for 25.4%(15.4%in written form and 10.0%through a computer-assisted reporting system).Almost half of the nurses(49.6%)stated that the hospital had no reporting system or they were uncertain about the reporting system.For reasons of not reporting,51.9%of the nurses were unware of how and what types of violence to report,and 50.6%of the nurses believed that the hospital paid greater attention to patients rather than staff.Conclusions:A clear definition of workplace violence and reporting procedures,establishment of a facile system for reporting,and supervisory support following a reporting are urgently required.
文摘A new path planning method for mobile robots in globally unknown environment with moving obstacles is pre- sented. With an autoregressive (AR) model to predict the future positions of moving obstacles, and the predicted position taken as the next position of moving obstacles, a motion path in dynamic uncertain environment is planned by means of an on-line real-time path planning technique based on polar coordinates in which the desirable direction angle is taken into consideration as an optimization index. The effectiveness, feasibility, high stability, perfect performance of obstacle avoidance, real-time and optimization capability are demonstrated by simulation examples.
文摘It is discussed in this paper the capability requirements of modern communication industry for smart pipe or Network Intelligence Capability Enhancement (NICE), Domestic and international researches on smart pipe are elaborated in the essay as well.
基金supported by the special Fund for Public Welfare Industry (Meteorology) (Grant No. GYHY200906018)the National Basic Research Program of China (Grant Nos. 2010CB950304 and 2009CB421406)the Knowl-edge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX2-YW-QN202)
文摘A statistical downscaling approach based on multiple-linear-regression(MLR) for the prediction of summer precipitation anomaly in southeastern China was established,which was based on the outputs of seven operational dynamical models of Development of a European Multi-model Ensemble System for Seasonal to Interannual Prediction(DEMETER) and observed data.It was found that the anomaly correlation coefficients(ACCs) spatial pattern of June-July-August(JJA) precipitation over southeastern China between the seven models and the observation were increased significantly;especially in the central and the northeastern areas,the ACCs were all larger than 0.42(above 95% level) and 0.53(above 99% level).Meanwhile,the root-mean-square errors(RMSE) were reduced in each model along with the multi-model ensemble(MME) for some of the stations in the northeastern area;additionally,the value of RMSE difference between before and after downscaling at some stations were larger than 1 mm d-1.Regionally averaged JJA rainfall anomaly temporal series of the downscaling scheme can capture the main characteristics of observation,while the correlation coefficients(CCs) between the temporal variations of the observation and downscaling results varied from 0.52 to 0.69 with corresponding variations from-0.27 to 0.22 for CCs between the observation and outputs of the models.
基金This project is part of the CMEP project supported by the Canadian Foundation for Climate and Atmospheric Studies(CFCAS)J.S.is also supported bv NSERC,MARTEC(a Halifax based company),and the Meteorological Service of Canada(MSC)through the NSERC/MARTEC/MSC Industrial Research Chair in‘Regional Ocean M odelling and Prediction’.
文摘An advanced ocean observatory has been established in Lunenburg Bay of Nova Scotia, Canada as part of an interdisciplinary research project of marine environmental prediction. The development of a high-resolution coastal circulation model is one of important components of the observatory. The model horizontal resolution is 60 m and the vertical resolution is about 1 m. The coastal circulation model is used to simulate the semi-diurnal tidal circulation and associated nonlinear dynamics with the M2 forcing specified at the model open boundaries. The model is also used to simulate the storm-induced circulation in the bay during Hurricane Juan in September 2003, with the model forcing to be the combination of tides and remotely generated waves specified at the model open boundaries and wind stress applied at the sea surface. The model results demonstrate strong interactions between the local wind stress, tidal forcing, and remotely generated waves during this period. Comparison of model results with the surface elevation and current observations demonstrates that the coastal circulation model has reasonable skills in simulating the tidal and storm-induced circulation in the bay.
文摘Immediate cutting and logging of mixed conifer/broadleaves species in a man-made forest crossed by fire in 2009 in the Arci Mountain in Sardinia can not guarantee as the best post-fire regeneration. The study case reports the differences in the density and in the height of seedlings. The release of damaged Pinus halepensis Mill. stems seems to confirm the tree seeder role of this species.
基金National Natural Science Foundation of China (40875067, 40675040)Knowledge Innovation Program of the Chinese Academy of Sciences (IAP09306)National Basic Research Program of China. (2006CB400505)
文摘A nested-model system is constructed by embedding the regional climate model RegCM3 into a general circulation model for monthly-scale regional climate forecast over East China. The systematic errors are formulated for the region on the basis of 10-yr (1991-2000) results of the nested-model system, and of the datasets of the Climate Prediction Center (CPC) Merged Analysis of Precipitation (CMAP) and the temperature analysis of the National Meteorological Center (NMC), U.S.A., which are then used for correcting the original forecast by the system for the period 2001-2005. After the assessment of the original and corrected forecasts for monthly precipitation and surface air temperature, it is found that the corrected forecast is apparently better than the original, suggesting that the approach can be applied for improving monthly-scale regional climate dynamical forecast.
文摘Objective.To analyze the clinical characteris tics of peripartum cardiomyopathy a nd to evaluate the different factors that influence the prognosis of the peripartum cardiomyopathy.Method.A retrospective review was undertak en on records of women who were diagnosed with peripartum cardiomyopathy at Peking Union Medi cal College Hospital between Jan.1983and May 1999.Results.During the research period,only 16p regnant women were documented as peripartum cardiomyopa-thy.Some of the women undertook ultr asonic cardiographic(UCG)examination that showed decreased s ystolic function.Seven women were complica ted with pregnancy induced hyperten sion.Three died of disseminated intravascular coagulation,embolism and cardiogenic shock respectively.Conclusion.Early diagnosis of the peripartum ca rdiomyopathy is extremely important.The UCG can pro-vide helpful information on disease progression or regression.
文摘The judicious and timely use of silence within worship is becoming increasingly recognised as a crucially important aspect of its performance. This article suggests that Samuel Beckett's Waiting for Godot has much to offer liturgists about silence's dramatic potential and its ability to alert others to a contemplative mode of being. I refute the predominant way of seeing the play as an absurdist text and indicate that a more persuasive reading would situate it within a contemplative hermeneutics which gives due weight to silence as an ontological phenomenon. One key to appreciating this interpretation is to see the play against the backdrop of the Christian contemplative tradition. Thus, the article, besides encouraging liturgists to pay attention to dramatists also suggests that dramatists might draw from religion's insights and history.
文摘We develop a descriptive framework of the components of intellectual capital (IC) in annual reports and investigate the effects of disclosure of IC on market capitalization.We use content analysis to analyze the annual reports of a sample of Fortune 100 listed companies in 2006 announced by Chinese Academy of Social Sciences.We select the 49 listed companies for content analysis of their 226 annual reports over the five-year period of 2001-2005.There is a highly significant and positive correlation between IC disclosure and market capitalization.In china,some high quality listed companies have existed IC information and increased year after year.More and more listed companies disclose their IC information spontaneity in structure capital,customer capital,and human capital,although Ministry of Finance only give the criterion on structure.There exists significant difference between industries when using ICR to analyze the competitive power.
文摘In this paper, the spatial-temporal gravity variation patterns of the northeastern margin of Qinghal-Xizang (Tibet) Plateau in 1992 - 2001 are modeled using bicubic spline interpolation functions and the relations of gravity change with seismicity and tectonic movement are discussed preliminarily. The results show as follows: ① Regional gravitational field changes regularly and the gravity abnormity zone or gravity concentration zone appears in the earthquake preparation process; ②In the significant time period, the gravity variation shows different features in the northwest, southeast and northeast parts of the surveyed region respectively, with Lanzhou as its boundary;③The gravity variation distribution is basically identical to the strike of tectonic fault zone of the region, and the contour of gravity variation is closely related to the fault distribution.
文摘We examine the relation between managerial ability and management forecast accuracy. We base our analysis on S&P 500 Composite Index constituents for the period of 2006-2012. Data were collected from Thomson Reuteurs, Compustat and Demerjian, Lev, and McVay (2012). We find that forecast accuracy is positively associated with managerial ability in the case of sales forecasts. Specifically, more able managers are associated with lower magnitude's forecast errors in the case of sales forecasts. Additional analysis finds that managerial ability is immaterial to EPS figures' forecast accuracy, i.e., EPS forecasts appear not to be affected by manager's superiority. Regarding sales forecasts, the results are consistent with the assertion that managers impact the quality of the delivered management forecasts. Regarding EPS forecasts, the results are in alignment with Demerjian, Lev, Lewis, and McVay (2013) who highlighted that managerial ability is an ability score related to the entire management team.