Taking the mechanism of technological construction guidance theory and mode which consists of "objective-construction-evaluation-construction-objective" as a starting point, on the basis of county agricultur...Taking the mechanism of technological construction guidance theory and mode which consists of "objective-construction-evaluation-construction-objective" as a starting point, on the basis of county agricultural technological innovation ability and its index definition, this paper researches the constructing system of county agricultural technological innovation ability. Firstly, on the basis of defining county agricultural technological innovation ability and the definition of index, according to the principle of purposefulness, scientificity, systematicness, integration of dynamic state and static state, integration of quantitativeness and qualitativeness and so on, we construct the multi-level measuring system of county agricultural technological innovation ability, including 4 first-level indices, namely technological innovation environment, technological innovation basis, technological innovation ability, and technological innovation efficiency; 15 second-level indices, such as technological policy, technological system mechanism, technological institution construction, ability of innovation subject, ability of industrial expansion, scale merit, technological contribution rate. Moreover, this system has 45 third-level indices. Then, by using unascertained mathematics method and AHM method, we establish the multi-level unascertained composite measuring model of county agricultural technological innovation ability index. Finally, by using the survey data of one county in Hebei Province, and the established county agricultural technological innovation ability index model, we get the county agricultural technological innovation ability index of 0.711 by calculation, that is, the innovation ability is at the intermediate level, namely the modern agricultural sub-stage. The empirical research proves the correctness and applicability of this model.展开更多
The aim of this paper was to test for measurement bias, due to cognitive interference on cognitive ability tests, using a structural equation modeling technique. The sample consisted of 231 undergraduate students who ...The aim of this paper was to test for measurement bias, due to cognitive interference on cognitive ability tests, using a structural equation modeling technique. The sample consisted of 231 undergraduate students who were examined with three tests addressed to numerical ability, space visualization and inductive ability, respectively. They were also asked to respond to the Cognitive Interference Questionnaire tapping task-oriented worries while working on the aforementioned tests. In comparing two nested models, one hypothesizing measurement bias due to cognitive interference and one not, results show that the test tapping inductive ability displays measurement bias due to cognitive interference.展开更多
Measure index system of technical innovation in medium and smallmanufacturing enterprises is established according to principles of exploration, adaptability,standardization, generalization, feasibility, comparability...Measure index system of technical innovation in medium and smallmanufacturing enterprises is established according to principles of exploration, adaptability,standardization, generalization, feasibility, comparability and combination of economic benefit andcontinual development. It includes index of technical innovation capacity, informationaladministration on technical innovation, and investment of technical innovation, economic benefit,green technical level, social contribution and other influential indexes. Approach to measure oftechnical innovation in medium and small manufacturing enterprises is presented based on combinationof grey relation and fuzzy hiberarchy analysis, and conclusions are drawn based on practicalanalysis of 20 medium and small enterprises, which provides the basis for the medium and smallenterprises to select technical innovation policies and the government to constitute relativepolicies.展开更多
The gush-out water in the mineral pit endangers the underground mine safety directly. It is an important task for underground mine to guarantee its safety during the flood season. The authors analyzed the status of wa...The gush-out water in the mineral pit endangers the underground mine safety directly. It is an important task for underground mine to guarantee its safety during the flood season. The authors analyzed the status of water prevention and control in Chengchao Iron Mine,China,and put forward the necessary measures. The hydrogeological parameter controls the design of mine water prevention and affects the mineral well safety in operation. Enhance supervision and control,keeping the current facilities intact,using the existing pump house and the underground tunnel to adjust and control the amount of water and improving the hydrogeological conditions in the mine are the practical and remedial measures.展开更多
Graduate education is the main way of high-level personnel training, present, China has formed a shape of postgraduate training mode for China's industries to transport a large number of professionals. However, with ...Graduate education is the main way of high-level personnel training, present, China has formed a shape of postgraduate training mode for China's industries to transport a large number of professionals. However, with the urgent social and economic needs of complex, application-oriented, innovative talents, how to train graduate students with innovative thinking and creative ability is a major issue facing our country. By describing the status of postgraduate training innovative, practical graduate analyzed the main reason for lack of innovation, and propose how to improve students from various practical ability and training reform measures graduate innovative thinking.展开更多
Considering the stratum anti-drilling ability,drill bit working conditions,drill bit application effect and drill bit economic benefits,the similarity of stratum anti-drilling ability was evaluated by grey relational ...Considering the stratum anti-drilling ability,drill bit working conditions,drill bit application effect and drill bit economic benefits,the similarity of stratum anti-drilling ability was evaluated by grey relational analysis theory to screen out candidate drill bits with reference values.A new comprehensive performance evaluation model of drill bit was established by constructing the absolute ideal solution,changing the relative distance measurement method,and introducing entropy weight to work out the closeness between the candidate drill bits and ideal drill bits and select the reasonable drill bit.Through the construction of absolute ideal solution,improvement of relative distance measurement method and introduction of entropy weight,the inherent defects of TOPSIS decision analysis method,such as non-absolute order,reverse order and unreasonable weight setting,can be overcome.Simple in calculation and easy to understand,the new bit selection method has good adaptability to drill bit selection using dynamic change drill bit database.Field application has proved that the drill bits selected by the new drill bit selection method had significant increase in average rate of penetration,low wear rate,and good compatibility with the drilled formations in actual drilling.This new method of drill bit selection can be used as a technical means to select drill bits with high efficiency,long life and good economics in oilfields.展开更多
背景:足踝本体感觉的研究对于慢性踝关节不稳、老年疾病的康复治疗以及身体姿势控制、运动表现的提高至关重要。前期的相关研究经常把足部和踝关节的感觉评价分开研究,对全面且综合地了解其感觉功能存在一定的局限。目的:足踝复合体是...背景:足踝本体感觉的研究对于慢性踝关节不稳、老年疾病的康复治疗以及身体姿势控制、运动表现的提高至关重要。前期的相关研究经常把足部和踝关节的感觉评价分开研究,对全面且综合地了解其感觉功能存在一定的局限。目的:足踝复合体是唯一与支撑面直接接触的部位,在收集体感反馈和调节平衡控制中起重要作用。文章通过汇总现有关于足部和踝关节本体感觉的调查研究,梳理足踝复合体感觉的测量与评价方法,以期为日后的相关研究做出铺垫并提供理论依据。方法:中文检索词为“(足OR足踝关节OR踝关节)AND(感觉OR本体感觉)”、英文检索词为“(foot OR ankle)AND(feel OR proprioception)”,在Web of Science、PubMed和中国知网数据库检索相关文献,了解关于足踝基本概念、研究现状与范畴,总结并评价足踝的本体感觉评价方法,最终纳入57篇文献进行综述分析。结果与结论:①足踝复合体感觉的评价主要分为对足部的感觉评价和踝关节的本体感觉评价。②足部的感觉评价主要描述其皮肤的感觉以及干预条件下的感觉反馈,方法主要包括:压力感觉阈值测试、足(底侧和跖侧)两点辨别能力测试、皮肤振动感觉持续时间测试。③踝关节本体感觉评价着重描述关节位置、运动范围、力值及功能表现,方法主要分为静态的关节角度重置测试、运动最小阈值测试、力觉重现测试以及动静态的平衡、速度及行走能力的测试。④对量化结果的报道一般以“误差”来表示,根据报道的需要一般分为:绝对误差、相对误差和恒定误差等。⑤结果证实,足踝复合体具备特殊的感觉能力,包括足部感觉和踝关节的本体感觉,影响人类的生活质量以及运动表现;足部感觉与踝关节本体感觉的弱化均与人体平衡能力下降相关,二者联合测量可以全面有效地评价足踝功能;根据不同的研究需求,需要选择足部与踝关节的感觉测量方法的组合形式,并充分考虑环境、情绪以及报道方式等多种影响因素,提高测量与评价的有效性。展开更多
基金Supported by Hebei Provincial Science&Technology Department Soft Sciences Research Program (10457204D-18)
文摘Taking the mechanism of technological construction guidance theory and mode which consists of "objective-construction-evaluation-construction-objective" as a starting point, on the basis of county agricultural technological innovation ability and its index definition, this paper researches the constructing system of county agricultural technological innovation ability. Firstly, on the basis of defining county agricultural technological innovation ability and the definition of index, according to the principle of purposefulness, scientificity, systematicness, integration of dynamic state and static state, integration of quantitativeness and qualitativeness and so on, we construct the multi-level measuring system of county agricultural technological innovation ability, including 4 first-level indices, namely technological innovation environment, technological innovation basis, technological innovation ability, and technological innovation efficiency; 15 second-level indices, such as technological policy, technological system mechanism, technological institution construction, ability of innovation subject, ability of industrial expansion, scale merit, technological contribution rate. Moreover, this system has 45 third-level indices. Then, by using unascertained mathematics method and AHM method, we establish the multi-level unascertained composite measuring model of county agricultural technological innovation ability index. Finally, by using the survey data of one county in Hebei Province, and the established county agricultural technological innovation ability index model, we get the county agricultural technological innovation ability index of 0.711 by calculation, that is, the innovation ability is at the intermediate level, namely the modern agricultural sub-stage. The empirical research proves the correctness and applicability of this model.
文摘The aim of this paper was to test for measurement bias, due to cognitive interference on cognitive ability tests, using a structural equation modeling technique. The sample consisted of 231 undergraduate students who were examined with three tests addressed to numerical ability, space visualization and inductive ability, respectively. They were also asked to respond to the Cognitive Interference Questionnaire tapping task-oriented worries while working on the aforementioned tests. In comparing two nested models, one hypothesizing measurement bias due to cognitive interference and one not, results show that the test tapping inductive ability displays measurement bias due to cognitive interference.
基金This project is supported by National Natural Science Foundation of China(No.70171039, No.70131010)Provincial Science Foundation of Heilongjiang, China (No.G01-09).
文摘Measure index system of technical innovation in medium and smallmanufacturing enterprises is established according to principles of exploration, adaptability,standardization, generalization, feasibility, comparability and combination of economic benefit andcontinual development. It includes index of technical innovation capacity, informationaladministration on technical innovation, and investment of technical innovation, economic benefit,green technical level, social contribution and other influential indexes. Approach to measure oftechnical innovation in medium and small manufacturing enterprises is presented based on combinationof grey relation and fuzzy hiberarchy analysis, and conclusions are drawn based on practicalanalysis of 20 medium and small enterprises, which provides the basis for the medium and smallenterprises to select technical innovation policies and the government to constitute relativepolicies.
文摘The gush-out water in the mineral pit endangers the underground mine safety directly. It is an important task for underground mine to guarantee its safety during the flood season. The authors analyzed the status of water prevention and control in Chengchao Iron Mine,China,and put forward the necessary measures. The hydrogeological parameter controls the design of mine water prevention and affects the mineral well safety in operation. Enhance supervision and control,keeping the current facilities intact,using the existing pump house and the underground tunnel to adjust and control the amount of water and improving the hydrogeological conditions in the mine are the practical and remedial measures.
文摘Graduate education is the main way of high-level personnel training, present, China has formed a shape of postgraduate training mode for China's industries to transport a large number of professionals. However, with the urgent social and economic needs of complex, application-oriented, innovative talents, how to train graduate students with innovative thinking and creative ability is a major issue facing our country. By describing the status of postgraduate training innovative, practical graduate analyzed the main reason for lack of innovation, and propose how to improve students from various practical ability and training reform measures graduate innovative thinking.
基金Supported by China National Science and Technology Major Project(2016ZX05020-006)。
文摘Considering the stratum anti-drilling ability,drill bit working conditions,drill bit application effect and drill bit economic benefits,the similarity of stratum anti-drilling ability was evaluated by grey relational analysis theory to screen out candidate drill bits with reference values.A new comprehensive performance evaluation model of drill bit was established by constructing the absolute ideal solution,changing the relative distance measurement method,and introducing entropy weight to work out the closeness between the candidate drill bits and ideal drill bits and select the reasonable drill bit.Through the construction of absolute ideal solution,improvement of relative distance measurement method and introduction of entropy weight,the inherent defects of TOPSIS decision analysis method,such as non-absolute order,reverse order and unreasonable weight setting,can be overcome.Simple in calculation and easy to understand,the new bit selection method has good adaptability to drill bit selection using dynamic change drill bit database.Field application has proved that the drill bits selected by the new drill bit selection method had significant increase in average rate of penetration,low wear rate,and good compatibility with the drilled formations in actual drilling.This new method of drill bit selection can be used as a technical means to select drill bits with high efficiency,long life and good economics in oilfields.
文摘背景:足踝本体感觉的研究对于慢性踝关节不稳、老年疾病的康复治疗以及身体姿势控制、运动表现的提高至关重要。前期的相关研究经常把足部和踝关节的感觉评价分开研究,对全面且综合地了解其感觉功能存在一定的局限。目的:足踝复合体是唯一与支撑面直接接触的部位,在收集体感反馈和调节平衡控制中起重要作用。文章通过汇总现有关于足部和踝关节本体感觉的调查研究,梳理足踝复合体感觉的测量与评价方法,以期为日后的相关研究做出铺垫并提供理论依据。方法:中文检索词为“(足OR足踝关节OR踝关节)AND(感觉OR本体感觉)”、英文检索词为“(foot OR ankle)AND(feel OR proprioception)”,在Web of Science、PubMed和中国知网数据库检索相关文献,了解关于足踝基本概念、研究现状与范畴,总结并评价足踝的本体感觉评价方法,最终纳入57篇文献进行综述分析。结果与结论:①足踝复合体感觉的评价主要分为对足部的感觉评价和踝关节的本体感觉评价。②足部的感觉评价主要描述其皮肤的感觉以及干预条件下的感觉反馈,方法主要包括:压力感觉阈值测试、足(底侧和跖侧)两点辨别能力测试、皮肤振动感觉持续时间测试。③踝关节本体感觉评价着重描述关节位置、运动范围、力值及功能表现,方法主要分为静态的关节角度重置测试、运动最小阈值测试、力觉重现测试以及动静态的平衡、速度及行走能力的测试。④对量化结果的报道一般以“误差”来表示,根据报道的需要一般分为:绝对误差、相对误差和恒定误差等。⑤结果证实,足踝复合体具备特殊的感觉能力,包括足部感觉和踝关节的本体感觉,影响人类的生活质量以及运动表现;足部感觉与踝关节本体感觉的弱化均与人体平衡能力下降相关,二者联合测量可以全面有效地评价足踝功能;根据不同的研究需求,需要选择足部与踝关节的感觉测量方法的组合形式,并充分考虑环境、情绪以及报道方式等多种影响因素,提高测量与评价的有效性。