Teacher questioning strategy is one of popular teaching method in teaching practice.The teachers and students of college English course II was taken as investigate objects in this study.This study will focus on the pr...Teacher questioning strategy is one of popular teaching method in teaching practice.The teachers and students of college English course II was taken as investigate objects in this study.This study will focus on the problems of questioning frequency,questioning types,questioning strategies,waiting time and students’response to deeply study this situation.Through the data collection and analysis,the researcher hopes the study will deeply reveal the real situation of teacher questioning usage in Honghe University.Some referential suggestions will be offered to the college English teachers for their future teaching.展开更多
Due to the fourth revolution experiencing,referred to as Industry 4.0,many production firms are devoted to integrating new technological tools to their manufacturing process.One of them,is rescheduling the tasks on th...Due to the fourth revolution experiencing,referred to as Industry 4.0,many production firms are devoted to integrating new technological tools to their manufacturing process.One of them,is rescheduling the tasks on the machines responding to disruptions.While,for static scheduling,the efficiency criteria measure the performance of scheduling systems,in dynamic environments,the stability criteria are also used to assess the impact of jobs deviation.In this paper,a new performance measure is investigated for a flowshop rescheduling problem.This one considers simultaneously the total weighted waiting time as the efficiency criterion,and the total weighted completion time deviation as the stability criterion.This fusion could be a very helpful and significant measure for real life industrial systems.Two disruption types are considered:jobs arrival and jobs cancellation.Thus,a Mixed Integer Linear Programming(MILP)model is developed,as well as an iterative predictive-reactive strategy for dealing with the online part.At last,two heuristic methods are proposed and discussed,in terms of solution quality and computing time.展开更多
Locally advanced rectal cancer requires a multidisciplinary approach based on total neoadjuvant treatment with radiotherapy(RT)and chemotherapy(ChT),followed by deferred surgery.Currently,alternatives to the standard ...Locally advanced rectal cancer requires a multidisciplinary approach based on total neoadjuvant treatment with radiotherapy(RT)and chemotherapy(ChT),followed by deferred surgery.Currently,alternatives to the standard total neoadjuvant therapy(TNT)are being explored,such as new ChT regimens or the introduction of immunotherapy.With standard TNT,up to a third of patients may achieve a complete pathological response(CPR),potentially avoiding surgery.However,as of now,we lack predictive markers of response that would allow us to define criteria for a conservative organ strategy.The presence of muta-tions,genes,or new imaging tests is helping to define these criteria.An example of this is the diffusion coefficient in the diffusion-weighted sequence of magnetic resonance imaging and the integration of this imaging technique into RT treatment.This allows for the monitoring of the evolution of this coefficient over successive RT sessions,helping to determine which patients will achieve CPR or those who may require intensification of neoadjuvant therapy.展开更多
研究了华南地区外来入侵种薇甘菊Mikania micrantha H B Kunth不同光环境下形态和生理可塑性及其适应性响应。通过模拟开阔地段、林缘、大林窗、小林窗、林下等不同生境的的光照环境,并设计一个干扰实验,分析了薇甘菊的生长、碳同化以...研究了华南地区外来入侵种薇甘菊Mikania micrantha H B Kunth不同光环境下形态和生理可塑性及其适应性响应。通过模拟开阔地段、林缘、大林窗、小林窗、林下等不同生境的的光照环境,并设计一个干扰实验,分析了薇甘菊的生长、碳同化以及生物量分配如何对光环境作出适应性响应。研究了当干扰发生时,薇甘菊如何对光环境的变化做出形态和生理可塑性响应。通过对其各项生物量分配及气体交换等指标的观测,在小林窗光照环境下薇甘菊生长缓慢生物量积累较少,但是如果一旦受到干扰,光照环境得到改善,薇甘菊将在很短的时间内通过适应性形态和生理可塑性响应,迅速体现出较强的入侵性。这也可能是入侵植物薇甘菊"坐待对策(sit and wait strategy)"的生动体现:如果外界环境不利,暂且先保持繁殖体(种子或者根茎),一旦条件成熟(发生干扰条件得到改善或者遗传变异或者生态生理的积累),就会迅速爆发。所以我们一方面,不用担心郁闭的森林会被薇甘菊入侵,但另一方面也要注意干扰会引起光照等环境条件的改变,使得原来潜伏于林下的薇甘菊繁殖体重新变得富有入侵性。展开更多
针对基于社区的机会网络路由算法存在的消息无序发送和过期消息管理效率不高等难题,提出一种基于高效缓存管理机制的可靠消息传输机会网络路由算法RMTEB(Reliable Message Transmission Routing Algorithm for Opportunistic Networks B...针对基于社区的机会网络路由算法存在的消息无序发送和过期消息管理效率不高等难题,提出一种基于高效缓存管理机制的可靠消息传输机会网络路由算法RMTEB(Reliable Message Transmission Routing Algorithm for Opportunistic Networks Based on Efficient Buffer Management Mechanism)。引入Spray and Wait机制,设计消息传输策略,对消息发送顺序、缓存清除机制以及消息转发机制进行优化,以确保携带消息节点在有限通信时间内向邻居节点转发更多的消息,节点相遇后,判断缓存中过期消息的目标节点是否为当前邻居节点,是则将消息发送给对方,否则删除;通过调整发送给目标节点为邻居节点的消息顺序,优先发送生存期剩余时间小的消息,显著提高消息传输效率,降低传输时延。仿真结果表明,RMTEB算法在传输成功率、平均端到端时延、路由开销比率和平均存储时间等方面均优于经典的Prophet routing算法及其改进算法Social Groups Based Routing(SGBR)。展开更多
文摘Teacher questioning strategy is one of popular teaching method in teaching practice.The teachers and students of college English course II was taken as investigate objects in this study.This study will focus on the problems of questioning frequency,questioning types,questioning strategies,waiting time and students’response to deeply study this situation.Through the data collection and analysis,the researcher hopes the study will deeply reveal the real situation of teacher questioning usage in Honghe University.Some referential suggestions will be offered to the college English teachers for their future teaching.
文摘Due to the fourth revolution experiencing,referred to as Industry 4.0,many production firms are devoted to integrating new technological tools to their manufacturing process.One of them,is rescheduling the tasks on the machines responding to disruptions.While,for static scheduling,the efficiency criteria measure the performance of scheduling systems,in dynamic environments,the stability criteria are also used to assess the impact of jobs deviation.In this paper,a new performance measure is investigated for a flowshop rescheduling problem.This one considers simultaneously the total weighted waiting time as the efficiency criterion,and the total weighted completion time deviation as the stability criterion.This fusion could be a very helpful and significant measure for real life industrial systems.Two disruption types are considered:jobs arrival and jobs cancellation.Thus,a Mixed Integer Linear Programming(MILP)model is developed,as well as an iterative predictive-reactive strategy for dealing with the online part.At last,two heuristic methods are proposed and discussed,in terms of solution quality and computing time.
文摘Locally advanced rectal cancer requires a multidisciplinary approach based on total neoadjuvant treatment with radiotherapy(RT)and chemotherapy(ChT),followed by deferred surgery.Currently,alternatives to the standard total neoadjuvant therapy(TNT)are being explored,such as new ChT regimens or the introduction of immunotherapy.With standard TNT,up to a third of patients may achieve a complete pathological response(CPR),potentially avoiding surgery.However,as of now,we lack predictive markers of response that would allow us to define criteria for a conservative organ strategy.The presence of muta-tions,genes,or new imaging tests is helping to define these criteria.An example of this is the diffusion coefficient in the diffusion-weighted sequence of magnetic resonance imaging and the integration of this imaging technique into RT treatment.This allows for the monitoring of the evolution of this coefficient over successive RT sessions,helping to determine which patients will achieve CPR or those who may require intensification of neoadjuvant therapy.
文摘研究了华南地区外来入侵种薇甘菊Mikania micrantha H B Kunth不同光环境下形态和生理可塑性及其适应性响应。通过模拟开阔地段、林缘、大林窗、小林窗、林下等不同生境的的光照环境,并设计一个干扰实验,分析了薇甘菊的生长、碳同化以及生物量分配如何对光环境作出适应性响应。研究了当干扰发生时,薇甘菊如何对光环境的变化做出形态和生理可塑性响应。通过对其各项生物量分配及气体交换等指标的观测,在小林窗光照环境下薇甘菊生长缓慢生物量积累较少,但是如果一旦受到干扰,光照环境得到改善,薇甘菊将在很短的时间内通过适应性形态和生理可塑性响应,迅速体现出较强的入侵性。这也可能是入侵植物薇甘菊"坐待对策(sit and wait strategy)"的生动体现:如果外界环境不利,暂且先保持繁殖体(种子或者根茎),一旦条件成熟(发生干扰条件得到改善或者遗传变异或者生态生理的积累),就会迅速爆发。所以我们一方面,不用担心郁闭的森林会被薇甘菊入侵,但另一方面也要注意干扰会引起光照等环境条件的改变,使得原来潜伏于林下的薇甘菊繁殖体重新变得富有入侵性。
文摘针对基于社区的机会网络路由算法存在的消息无序发送和过期消息管理效率不高等难题,提出一种基于高效缓存管理机制的可靠消息传输机会网络路由算法RMTEB(Reliable Message Transmission Routing Algorithm for Opportunistic Networks Based on Efficient Buffer Management Mechanism)。引入Spray and Wait机制,设计消息传输策略,对消息发送顺序、缓存清除机制以及消息转发机制进行优化,以确保携带消息节点在有限通信时间内向邻居节点转发更多的消息,节点相遇后,判断缓存中过期消息的目标节点是否为当前邻居节点,是则将消息发送给对方,否则删除;通过调整发送给目标节点为邻居节点的消息顺序,优先发送生存期剩余时间小的消息,显著提高消息传输效率,降低传输时延。仿真结果表明,RMTEB算法在传输成功率、平均端到端时延、路由开销比率和平均存储时间等方面均优于经典的Prophet routing算法及其改进算法Social Groups Based Routing(SGBR)。
