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101.
102.
Chemical Engineering students are usually exposed to stress and anxiety situations during university period. Authors consider that a reduction in students’ stress levels can improve their academic results. A new experience based on the introduction of gamification strategies by incorporating a new methodology for solving engineering problems called PWD (problems without data) was proposed. This was related with a specific app design. Two students’ groups were randomly done and, despite having the same academic content and teacher, only one group used this methodology. Results showed that using these new elements for a subject called Basic Operations, belonging to the area of Chemical Engineering area of the University of León, the comfort and stress level of the students improved significantly. Thus, the average value of the stress perceived by the students, which initially was above a value of 5 out of 10, was reduced for those students who have followed the proposed methodology to levels below 3.5. Additionally, an related to the academic degree, a difference of 1.5 points (out of 7) was found for the students who had used the PWD methodology with respect to the control students. 相似文献
103.
Akiyoshi Kamura Go Kurihara Tomohiro Mori Motoki Kazama Youngcheul Kwon Jongkwan Kim Jin-Tae Han 《Soils and Foundations》2021,61(3):658-674
This study presents a new approach to determine the damage degree of liquefaction caused by a large earthquake. We propose an artificial neural network (ANN) model based only on the seismic records of ground and define the degree of liquefaction “DDL” as a damage index. This ANN model predicts the degree of excess pore water pressure increase as the correct output label based on the seismic records obtained from the three-dimensional shaking table test. The proposed model achieved high accuracy, and the outcomes from training data indicated that the ANN model is suitable to function as a liquefaction assessment system. Further, to evaluate the applicability of the proposed ANN model in the real world, the datasets of waves from three actual seismic records were input to the ANN as validation data. The DDL judgment obtained was a good fit with the real phenomena observed. 相似文献
104.
我国的石油行业发展迅猛,在石油的勘探和开采等方面的速度在不断的提升,这样就会面临更多的地质条件。石油勘探对石油行业录井技术提出了许多新要求,我国需要更多的高新技术来支持石油勘探项目。我国的石油行业录井技术的发展应当向着更加优秀的方向迈进,这样才能够保证石油行业勘探和开采的需要,能够应对最新的石油行业勘探问题,并且为其提供相应的优质解决方案。 相似文献
105.
建筑安装企业内部审计的问题及对策探讨 总被引:1,自引:0,他引:1
本文列举了建安企业内部审计目前存在的主要问题及现象,从各个方面分析了问题产生的原因,并针对这些问题提出了相应的对策。 相似文献
106.
左斌 《东北电力学院学报》2005,25(6):126-130
阐述了吉林省电工行业的基本情况,研究了我省电工行业的现状,分析了发展中存在的问题,提出了解决问题的思路和措施。对于当前我省电工行业,抓住振兴东北老工业基地的有利时机,加快企业的改革与发展,具有十分重要的宴际意义。 相似文献
107.
Constraint Satisfaction Problems (CSP) belong to a kind of traditional NP-hard problems with a high impact on both research and industrial domains. The goal of these problems is to find a feasible assignment for a group of variables where a set of imposed restrictions is satisfied. This family of NP-hard problems demands a huge amount of computational resources even for their simplest cases. For this reason, different heuristic methods have been studied so far in order to discover feasible solutions at an affordable complexity level. This paper elaborates on the application of Ant Colony Optimization (ACO) algorithms with a novel CSP-graph based model to solve Resource-Constrained Project Scheduling Problems (RCPSP). The main drawback of this ACO-based model is related to the high number of pheromones created in the system. To overcome this issue we propose two adaptive Oblivion Rate heuristics to control the number of pheromones: the first one, called Dynamic Oblivion Rate, takes into account the overall number of pheromones produced in the system, whereas the second one inspires from the recently contributed Coral Reef Optimization (CRO) solver. A thorough experimental analysis has been carried out using the public PSPLIB library, and the obtained results have been compared to those of the most relevant contributions from the related literature. The performed experiments reveal that the Oblivion Rate heuristic removes at least 79% of the pheromones in the system, whereas the ACO algorithm renders statistically better results than other algorithmic counterparts from the literature. 相似文献
108.
In China, philosophical research on technology should focus on dealing with practical problems such as exploring how to construct harmonious relationships between technology and science, technology and society, as well as technology and human development during a period of great economic and social transformation. The construction needs to be based on China's social and cultural contexts. Efforts also need to be made to help engineers, technologists, and the public understand and undertake corresponding social responsibilities in order to facilitate the sustainable development of society. 相似文献
109.
文章阐述了塔里木大化肥多轴式空气压缩机的结构、安装、试车准备及运行指标,解决了压缩机在安装中出现的高位油箱安装高度、四及六段放空管走向、级间冷却器基础标高以及减速器润滑油回流管布置等问题,同时,对在试车和运行过程中出现的透平冲转时振动增大、压缩机二段工作点在防喘振线上以及在升速过程中压缩机四级振动高的问题进行了分析,并采取了相应的措施,亦为同类设备的安装、试车及问题的处理提供了参考。 相似文献
110.
Feenstra Dine J.; Hutsebaut Joost; Verheul Roel; Busschbach Jan J. V. 《Canadian Metallurgical Quarterly》2011,23(3):646
The Severity Indices of Personality Problems (SIPP–118; Verheul et al., 2008) is a self-report questionnaire focusing on core components of (mal)adaptive personality functioning. The SIPP–118 was developed and validated in an adult population. In adult populations, the 16 facets of the SIPP–118 fit into 5 higher order domains: self-control, identity integration, relational capacities, social concordance, and responsibility. In this study we present the 1st psychometric properties of the SIPP–118 in adolescents. We compared the SIPP–118 scores of a patient and a nonpatient sample of adolescents, and compared personality disordered and non-personality disordered adolescents. In addition, the relationship between scores on the SIPP–118 and other clinical instruments (Symptom Checklist—90–Revised; SCL–90–R; Derogatis, 1975; Dimensional Assessment of Personality Pathology—Basic Personality; DAPP–BQ; Livesley & Jackson, 2002) was investigated. The questionnaires were completed by 378 adolescent patients and 389 adolescents in the community. Facets appeared to be homogeneous, as alpha coefficients ranged from .62 to .89, indicating moderate to acceptable reliability. Also, more pathological SIPP–118 scores were found in the patient sample, and more specifically in the personality disordered sample, suggesting that the facet scores of the SIPP–118 can discriminate between various populations (divergent validity). Correlation with other clinical instruments was moderate to high (–.82 to .10). Taken together, the SIPP–118 seems to be a promising instrument measuring personality pathology in adolescents. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献