Due to the fact that there is no protected signal phase for right turns at most signalized intersections, the conflict between pedestrians and right-turning vehicles is one of the most common conflict types for pedest...Due to the fact that there is no protected signal phase for right turns at most signalized intersections, the conflict between pedestrians and right-turning vehicles is one of the most common conflict types for pedestrians. A pedestrian safety analysis of the common right-turn mode at four-phase signalized intersections is presented. Relative risk is used as a measure of the effect of behaviors. The analysis mainly includes five pedestrian factors that affect the conflict process between pedestrians and right-turning vehicles. Pedestrians tend to have a higher risk of being involved in conflicts in the following six situations: crossing with others, running over the crossing, entering the intersection, being near the exit lane, crossing in the middle or at the end of a green light when the right-turn lane is shared, crossing at the beginning of a green light or red period when the right-turn lane is exclusive. It is easier for pedestrians to get priority when crossing the street in the following situations: running over a crossing, entering the intersection, being near the entrance lane, and not using the crosswalk. However, pedestrians are more inclined to yield to right-turning vehicles when pedestrians are crossing in the middle of the green light time. Some measures to alleviate the conflict are put forward according to the conclusion. Video observations also indicate that a clear pedestrian waiting area must be marked for both pedestrian safety and right-turning vehicle efficiency at major flat intersections, particularly when the arms cover the lateral dividing strips.展开更多
In line with the sensitivity of coal drillings temperature and coalbed temperature to the dangerous zone of coal and gas outburst, two temperature sensitive indexes (△Tm, △tm) for forecasting dangerousness of coal f...In line with the sensitivity of coal drillings temperature and coalbed temperature to the dangerous zone of coal and gas outburst, two temperature sensitive indexes (△Tm, △tm) for forecasting dangerousness of coal face and heading face outburst are defined, and deal with the foundation on drillings and coalbed temperatures used as sensitive indexes and the principle and method of determining drillings and coalbed temperatures. On the basis of this, we put forward the method for forecasting dangerousness of coal face and heading face outburst by two temperature sensitive indexes and determine the critical values of two temperature sensitive indexes (△Tm= 5.5℃, △tm = 4.5℃) by in-situ observation and requirement for determining sensitive index.展开更多
Lin Zhixin’s devotion to charity is a touching story.It is good to know that many benevolent people are contributing to Lin’s charity projects.Transparency is the key to Lin’s success;without it,charities quickly l...Lin Zhixin’s devotion to charity is a touching story.It is good to know that many benevolent people are contributing to Lin’s charity projects.Transparency is the key to Lin’s success;without it,charities quickly lose public credibility.Certain governmental charities in China are currently grappling with a public trust crisis following recent scandals.展开更多
Based on the records of social revolts in the Actual Annals of Qing Dynasty （a collection of official records）, the revolts frequency （amount of counties where revolts happened every year） in North China Plain dur...Based on the records of social revolts in the Actual Annals of Qing Dynasty （a collection of official records）, the revolts frequency （amount of counties where revolts happened every year） in North China Plain during the Qing Dynasty （1544 1911） is reconstructed. By comparing revolts frequency with temperature and precipitation series, the interaction between climate and social responses is analyzed. It can be concluded that revolts broke out more frequently in colder periods and less frequently in warmer periods, There were much more revolts in drought decades than in wet decades, and the three fatal peasant uprisings in the Qing Dynasty were all ignited by severe droughts. The impacts of changes in temperature and precipitation on revolts should be estimated at different time scales. The correspondence emerged at neither decadal nor yearly scale until the turn between 18th and 19th centuries, the critical period when per capita cropland area decreased to a vulnerable level. Food crisis increased the vulnerability of local society, and changes in temperature and precipitation became an important trigger for revolts.展开更多
We present a stochastic critical slope sandpile model, where the amount of grains that fall in an overturning event is stochastic variable. The model is local, conservative, and Abelian. We apply the moment analysis t...We present a stochastic critical slope sandpile model, where the amount of grains that fall in an overturning event is stochastic variable. The model is local, conservative, and Abelian. We apply the moment analysis to evaluate critical exponents and finite size scaling method to consistently test the obtained results. Numerical results show that this model, Oslo model, and one-dimensional Abelian Manna model have the same critical behavior although the three models have different stochastic toppling rules, which provides evidences suggesting that Abelian sandpile models with different stochastic toppling rules are in the same universality class.展开更多
Many highly publicized accounting scandals of the recent past seriously caused enormous losses to investors, hindered the healthy development of the capital market and damaged the credibility of the accounting profess...Many highly publicized accounting scandals of the recent past seriously caused enormous losses to investors, hindered the healthy development of the capital market and damaged the credibility of the accounting profession. This paper gives a trial analysis on the reasons and precautionary measures of audit failure.展开更多
Public security emergency is a public crisis event, and we cannot anticipate the specific time, actual scale, specific situation and influence depth of emergencies. If the emergencies are not under control, the crisis...Public security emergency is a public crisis event, and we cannot anticipate the specific time, actual scale, specific situation and influence depth of emergencies. If the emergencies are not under control, the crisis will get worse and its destructive energy will be released quickly.Structure box is an invisible closed system which is constructed by local politics, economy, and culture. Namely, structure box is local social ecological environment. Structure box is a closed area which is full of anger. Therefore, in such environment with too much pressure, we need an outlet to release pressure. Anger is the social and psychological basis of the emotional resonance of onlooker, when the fuse incident occurred, so that the widespread anger in structure box will find the spotlight. The words and actions of the leaders in the informal group will produce a great social infection and circulatory response, and groups’ stirring will cause emotional resonance which is easy to burst. Thus, irrational behavior may caused by people. This processcan use five links to describe： occurrence of fuse events, information diffusion, emotional resonance, situational catalysis, control failure, and occurrence of public security emergency. This is the occurrence mechanism of public security emergency.展开更多
The purpose of this research is to examine the impact of financial distress status and corporate governance structures on the level of voluntary disclosure. We apply six independent variables, including the firm＇s fi...The purpose of this research is to examine the impact of financial distress status and corporate governance structures on the level of voluntary disclosure. We apply six independent variables, including the firm＇s financial distress status and five components of corporate governance structures, such as board independence, audit committee independence, institutional ownership, board meeting frequency, and audit committee meeting frequency. This research is carried out by examining the annual reports of 114 non-financial firms listed at the Indonesian Stock Exchange over the period of 2009-2011. To test hypotheses, we undergo two different analyses, including independent samples t-test and Multiple Linear Regression. We find that： （1） The audit committee independence and the audit committee meeting frequency have significant positive impacts on the level of voluntary disclosure; （2） The financial distress status is negatively related to the level of disclosure at various levels of significance; and （3） All the independent variables are simultaneously related to voluntary disclosure.展开更多
The economic crisis of the last three years, which has hit the world, especially the Baltic States together with their ultraliberal way of economy, has forced to look for solutions to overcome the depression. A low le...The economic crisis of the last three years, which has hit the world, especially the Baltic States together with their ultraliberal way of economy, has forced to look for solutions to overcome the depression. A low level of taxation, the policy of＂thin state policy＂ and a small share of public sector have influenced the macroeconomics of Estonia since its re-independence. The indirect taxes, especially the consumption taxes, are dominating in Estonian taxation system. The increase of tax burden a little more than 2% in 2009 through the increase of value added tax （VAT） and excises, and the pruning of income taxation benefits did not enlarge state budget in the same amount. The pruning of budget did not just decrease the internal market of the state very rapidly, but also decrease the incomes of the future periods, due to a big dominant of consumption taxes. The economic depression, which began in 2008, has demonstrated a week orientation of Estonian economy, threaten its taxation system on innovation. The amount of investments has essentially decreased than the decrease of GDP and state budget.展开更多
基金The National Natural Science Foundation of China(No.51278220)
文摘Due to the fact that there is no protected signal phase for right turns at most signalized intersections, the conflict between pedestrians and right-turning vehicles is one of the most common conflict types for pedestrians. A pedestrian safety analysis of the common right-turn mode at four-phase signalized intersections is presented. Relative risk is used as a measure of the effect of behaviors. The analysis mainly includes five pedestrian factors that affect the conflict process between pedestrians and right-turning vehicles. Pedestrians tend to have a higher risk of being involved in conflicts in the following six situations: crossing with others, running over the crossing, entering the intersection, being near the exit lane, crossing in the middle or at the end of a green light when the right-turn lane is shared, crossing at the beginning of a green light or red period when the right-turn lane is exclusive. It is easier for pedestrians to get priority when crossing the street in the following situations: running over a crossing, entering the intersection, being near the entrance lane, and not using the crosswalk. However, pedestrians are more inclined to yield to right-turning vehicles when pedestrians are crossing in the middle of the green light time. Some measures to alleviate the conflict are put forward according to the conclusion. Video observations also indicate that a clear pedestrian waiting area must be marked for both pedestrian safety and right-turning vehicle efficiency at major flat intersections, particularly when the arms cover the lateral dividing strips.
文摘In line with the sensitivity of coal drillings temperature and coalbed temperature to the dangerous zone of coal and gas outburst, two temperature sensitive indexes (△Tm, △tm) for forecasting dangerousness of coal face and heading face outburst are defined, and deal with the foundation on drillings and coalbed temperatures used as sensitive indexes and the principle and method of determining drillings and coalbed temperatures. On the basis of this, we put forward the method for forecasting dangerousness of coal face and heading face outburst by two temperature sensitive indexes and determine the critical values of two temperature sensitive indexes (△Tm= 5.5℃, △tm = 4.5℃) by in-situ observation and requirement for determining sensitive index.
文摘Lin Zhixin’s devotion to charity is a touching story.It is good to know that many benevolent people are contributing to Lin’s charity projects.Transparency is the key to Lin’s success;without it,charities quickly lose public credibility.Certain governmental charities in China are currently grappling with a public trust crisis following recent scandals.
基金supported by a grant from the National Basic Research Program of China(No 2010CB950103)grants from the National Science Foundation of China(No41071127,No40901099)
文摘Based on the records of social revolts in the Actual Annals of Qing Dynasty （a collection of official records）, the revolts frequency （amount of counties where revolts happened every year） in North China Plain during the Qing Dynasty （1544 1911） is reconstructed. By comparing revolts frequency with temperature and precipitation series, the interaction between climate and social responses is analyzed. It can be concluded that revolts broke out more frequently in colder periods and less frequently in warmer periods, There were much more revolts in drought decades than in wet decades, and the three fatal peasant uprisings in the Qing Dynasty were all ignited by severe droughts. The impacts of changes in temperature and precipitation on revolts should be estimated at different time scales. The correspondence emerged at neither decadal nor yearly scale until the turn between 18th and 19th centuries, the critical period when per capita cropland area decreased to a vulnerable level. Food crisis increased the vulnerability of local society, and changes in temperature and precipitation became an important trigger for revolts.
基金国家自然科学基金，the State Key Laboratory of Laser of China
文摘We present a stochastic critical slope sandpile model, where the amount of grains that fall in an overturning event is stochastic variable. The model is local, conservative, and Abelian. We apply the moment analysis to evaluate critical exponents and finite size scaling method to consistently test the obtained results. Numerical results show that this model, Oslo model, and one-dimensional Abelian Manna model have the same critical behavior although the three models have different stochastic toppling rules, which provides evidences suggesting that Abelian sandpile models with different stochastic toppling rules are in the same universality class.
文摘Many highly publicized accounting scandals of the recent past seriously caused enormous losses to investors, hindered the healthy development of the capital market and damaged the credibility of the accounting profession. This paper gives a trial analysis on the reasons and precautionary measures of audit failure.
文摘Public security emergency is a public crisis event, and we cannot anticipate the specific time, actual scale, specific situation and influence depth of emergencies. If the emergencies are not under control, the crisis will get worse and its destructive energy will be released quickly.Structure box is an invisible closed system which is constructed by local politics, economy, and culture. Namely, structure box is local social ecological environment. Structure box is a closed area which is full of anger. Therefore, in such environment with too much pressure, we need an outlet to release pressure. Anger is the social and psychological basis of the emotional resonance of onlooker, when the fuse incident occurred, so that the widespread anger in structure box will find the spotlight. The words and actions of the leaders in the informal group will produce a great social infection and circulatory response, and groups’ stirring will cause emotional resonance which is easy to burst. Thus, irrational behavior may caused by people. This processcan use five links to describe： occurrence of fuse events, information diffusion, emotional resonance, situational catalysis, control failure, and occurrence of public security emergency. This is the occurrence mechanism of public security emergency.
文摘The purpose of this research is to examine the impact of financial distress status and corporate governance structures on the level of voluntary disclosure. We apply six independent variables, including the firm＇s financial distress status and five components of corporate governance structures, such as board independence, audit committee independence, institutional ownership, board meeting frequency, and audit committee meeting frequency. This research is carried out by examining the annual reports of 114 non-financial firms listed at the Indonesian Stock Exchange over the period of 2009-2011. To test hypotheses, we undergo two different analyses, including independent samples t-test and Multiple Linear Regression. We find that： （1） The audit committee independence and the audit committee meeting frequency have significant positive impacts on the level of voluntary disclosure; （2） The financial distress status is negatively related to the level of disclosure at various levels of significance; and （3） All the independent variables are simultaneously related to voluntary disclosure.
文摘The economic crisis of the last three years, which has hit the world, especially the Baltic States together with their ultraliberal way of economy, has forced to look for solutions to overcome the depression. A low level of taxation, the policy of＂thin state policy＂ and a small share of public sector have influenced the macroeconomics of Estonia since its re-independence. The indirect taxes, especially the consumption taxes, are dominating in Estonian taxation system. The increase of tax burden a little more than 2% in 2009 through the increase of value added tax （VAT） and excises, and the pruning of income taxation benefits did not enlarge state budget in the same amount. The pruning of budget did not just decrease the internal market of the state very rapidly, but also decrease the incomes of the future periods, due to a big dominant of consumption taxes. The economic depression, which began in 2008, has demonstrated a week orientation of Estonian economy, threaten its taxation system on innovation. The amount of investments has essentially decreased than the decrease of GDP and state budget.
