Open Journal of Applied Sciences最新文献

An Empirical Study of the Influence of Online Learning Behaviors on Learning Outcomes in Blended Teaching Mode—Taking College English Listening as an Example 混合式教学模式下网络学习行为对学习效果影响的实证研究& & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & &;举个例子

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.139121

Lanlan Wei

{"title":"An Empirical Study of the Influence of Online Learning Behaviors on Learning Outcomes in Blended Teaching Mode—Taking &lt;i&gt;College English Listening&lt;/i&gt; as an Example","authors":"Lanlan Wei","doi":"10.4236/ojapps.2023.139121","DOIUrl":"https://doi.org/10.4236/ojapps.2023.139121","url":null,"abstract":"Blended teaching, which integrates the advantages of online and offline teaching, has become the main direction of higher education teaching reform. In the era of education big data, research on the online learners’ behavior based on data mining has attracted more and more attention from higher education researchers. However, in the field of foreign language teaching, research on the relationship between online learning behaviors and learning outcomes in the blended teaching mode is still at an early stage. Taking the course College English Listening in Zhejiang Yuexiu University (ZYU) as an example, this study conducted a comprehensive data analysis of online learning behaviors of 152 students of ZYU to explore the influence of online learning behaviors on learning outcomes in the blended teaching mode by utilizing Microsoft Excel and SPSS.20 statistic software. The result shows that the number of course login, the quantity and the quality of forum replies, the number of note submission, the quality of the notes, the average score of vocabulary tests, the number of the times of taking listening tests and the average score of listening tests are all significantly and positively correlated with students’ learning outcomes, while the study does not find a correlation between students’ learning outcomes and the number of the times of taking vocabulary tests, the total length of online learning and the length of video viewing. Based on the study results, implications are put forward to give reference for the teaching design and the management of the foreign language blended courses.","PeriodicalId":19671,"journal":{"name":"Open Journal of Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135551408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological and Genetic Differentiation of Fish of the Subgenus Chrysichthys chrysichthys from Ivorian Rivers Chrysichthys 来自科特迪瓦河流

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.138106

Tionrotia Alice Sita, Abouo Beatrice

{"title":"Morphological and Genetic Differentiation of Fish of the Subgenus &lt;i&gt;Chrysichthys chrysichthys&lt;/i&gt; from Ivorian Rivers","authors":"Tionrotia Alice Sita, Abouo Beatrice","doi":"10.4236/ojapps.2023.138106","DOIUrl":"https://doi.org/10.4236/ojapps.2023.138106","url":null,"abstract":"Fish of the Chrysichthys genus are subject to intense exploitation, which is threatening the available stock. The implementation of a sustainable resource management plan requires a good knowledge of the biodiversity of this genus. The aim of this study was to determine the morphological and genetic characteristics of the fish of the subgenus Chrysichthys chrysichthys in order to identify descriptors for differentiating the species of this subgenus present in Côte d’Ivoire. The biometric analysis involved forty-one morphological measurements taken from each of the 255 specimens sampled in five hydro systems. The genetic analysis of the D-loop mitochondrial DNA sequence was carried out in 34 specimens. The amplicons obtained by PCR were subjected to sequencing. Individual analysis of morphometric characters divided the subgenus into two different species: C. maurus and C. auratus. The high classification rate (>90%) of the Discriminant Factor Analysis confirmed the existence of these two species. Wilk’s Lambda test revealed thirteen discriminating descriptors. Phylogenetic analysis confirmed the existence of both species. Within the C. maurus species, fish from the river Bia are genetically different from those from other rivers. On the other hand, this population is fairly close to that of the C. auratus species, which is also divided into two different clades. Finally, molecular analysis corrected the taxonomic status of the fish.","PeriodicalId":19671,"journal":{"name":"Open Journal of Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136258379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Local Acceleration Due to Gravity as Determined with a Cart and Track 由小车和轨道确定的局部重力加速度

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.139129

Joaquim Bocresion

引用次数: 0

Development of a Test Rig for Axial Strains Measurement in Automobile Wheel 汽车车轮轴向应变测量试验台的研制

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.1310139

Samuel Onoriode Igbudu, David Abimbola Fadare

{"title":"Development of a Test Rig for Axial Strains Measurement in Automobile Wheel","authors":"Samuel Onoriode Igbudu, David Abimbola Fadare","doi":"10.4236/ojapps.2023.1310139","DOIUrl":"https://doi.org/10.4236/ojapps.2023.1310139","url":null,"abstract":"In automobile wheel application, a test rig is vital and used to simulate conditions of the wheel in service in order to affirm the safety and reliability of the wheel. The present work designed a test rig for measuring axial strains in automobile wheel. The wheel used was a five-arm wheel (6JX14H2; ET 42) and Tyre (175 × 65 R 14). Experimental (EXP) test was carried out, with a radial load of 4750 N and inflation pressure of 0.3 MPa, to measure the axil strains which were converted to maximum principal strain values and, compared with data from Finite Element Analysis (FEA) using Creo-Element/Pro 5.0 at wheel’s contact angles of 90 degree (FEA 90 deg), 40 degree (FEA 40 deg) and 30.25 degree (FEA 30.25 deg), respectively. Results show that at the wheel’s point of contact with the ground, maximum principal strain values were highest at the inboard bead seat with a value of about 5.69 × 10-4 mm/mm, followed by the values at the well of about 5.66 × 10-4 mm/mm. The value at the outboard bead seat was least at about 2.22 × 10-4 mm/mm, which was due to the presence of spikes at this location that tends to resist imposed radial loads. However, the highest mean maximum principal strain values at the locations of inboard, well and outboard, were about 2.11 × 10-4 mm/mm, 3.78 × 10-4 mm/mm and .99 × 10-4 mm/mm, respectively. With the highest single value of about 5.69 × 10-4 mm/mm, the inboard bead seat was the most strained location of the wheel. Overall results showed that all values of maximum principal strains were below the threshold value of about 1 × 10-2 mm/mm. The values obtained for EXP and FEA could be said to be in close agreement when compared with the threshold value. With this in mind, the rig is recommended for use in related experimental procedures.","PeriodicalId":19671,"journal":{"name":"Open Journal of Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135212831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Levels of Heavy Metals in Some Vegetables and Human Health Risk Assessment in Loumbila Area, Burkina Faso 布基纳法索隆比拉地区一些蔬菜中的重金属含量及人体健康风险评估

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.139119

Telado Luc Bambara, Moumouni Derra, Karim Kaboré, Kiswendsida Alain Tougma, Ousmane I. Cissé, Francois Zougmoré

{"title":"Levels of Heavy Metals in Some Vegetables and Human Health Risk Assessment in Loumbila Area, Burkina Faso","authors":"Telado Luc Bambara, Moumouni Derra, Karim Kaboré, Kiswendsida Alain Tougma, Ousmane I. Cissé, Francois Zougmoré","doi":"10.4236/ojapps.2023.139119","DOIUrl":"https://doi.org/10.4236/ojapps.2023.139119","url":null,"abstract":"Contamination by heavy metals of soil, water and agricultural products is currently a major problem of environmental pollution in the world. The consumption of plants contaminated with heavy metals can be the cause of diseases such as cancers, the number of cases of which is only growing. The objective of this study was to determine the concentration of copper (Cu), chromium (Cr), zinc (Zn), lead (Pb), nickel (Ni), and cadmium (Cd) in plants from the vegetable farm of LOUMBILA and the assessment of health risks linked to the consumption of plants. In this paper, the concentration of heavy metal in vegetable was measured using the model AANALYST 200 flame atomic absorption spectrometer from PERKIN ELMER. The level of Zn in the vegetables from Loumbila vegetable farms ranged between 42.95 mg/kg and 78 mg/kg. The concentrations of Zn in the studies vegetables were higher than the permissible levels set by FAO/WHO (20 mg/kg). The concentration Pb in vegetables varied from 1.73 mg/kg to 27.02 mg/kg. All concentrations of Pb in vegetable were higher than the permissible levels set by FAO/WHO (0.3 mg/kg). Daily intake of Ni, Cr and Pb was higher than the MTDI, so consumption of vegetables from Loumbila vegetable farms can lead to health problems related to Ni, Cr and Pb. In vegetables from LOUMBILA, the estimated daily intake decreased in the following order: Zn > Cu > Pb > Ni > Cr. The Hazard index values for carrot, onion, lettuce, green bean and onion leaves were greater than (>) one (1) which indicates that there might be a potential health risk to those consuming these vegetables. The Target Cancer Risk (TCR) analysis also revealed the potential cancer risk induced by Cu, Ni, Zn, Cr and Pb due to the consumption of carrot, onion leaves, onion, lettuce, green bean, and bell pepper because their TCR values were above the threshold.","PeriodicalId":19671,"journal":{"name":"Open Journal of Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135440326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Level of Insomnia, Symptoms of Depression, and Anxiety among College Students with Mobile Phone Addiction: Basis for Guidance and Counseling Program Enhancement 手机成瘾大学生失眠、抑郁、焦虑水平:加强指导咨询的依据

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.1310130

Xiaowei He, Elna Lopez

引用次数: 0

The Evolving Bipartite Network and Semi-Bipartite Network Models with Adjustable Scale and Hybrid Attachment Mechanisms 具有可调尺度和混合连接机制的演化二部网络和半二部网络模型

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.1310133

Peng Zuo, Zhen Jia

{"title":"The Evolving Bipartite Network and Semi-Bipartite Network Models with Adjustable Scale and Hybrid Attachment Mechanisms","authors":"Peng Zuo, Zhen Jia","doi":"10.4236/ojapps.2023.1310133","DOIUrl":"https://doi.org/10.4236/ojapps.2023.1310133","url":null,"abstract":"The bipartite graph structure exists in the connections of many objects in the real world, and the evolving modeling is a good method to describe and understand the generation and evolution within various real complex networks. Previous bipartite models were proposed to mostly explain the principle of attachments, and ignored the diverse growth speed of nodes of sets in different bipartite networks. In this paper, we propose an evolving bipartite network model with adjustable node scale and hybrid attachment mechanisms, which uses different probability parameters to control the scale of two disjoint sets of nodes and the preference strength of hybrid attachment respectively. The results show that the degree distribution of single set in the proposed model follows a shifted power-law distribution when parameter r and s are not equal to 0, or exponential distribution when r or s is equal to 0. Furthermore, we extend the previous model to a semi-bipartite network model, which embeds more user association information into the internal network, so that the model is capable of carrying and revealing more deep information of each user in the network. The simulation results of two models are in good agreement with the empirical data, which verifies that the models have a good performance on real networks from the perspective of degree distribution. We believe these two models are valuable for an explanation of the origin and growth of bipartite systems that truly exist.","PeriodicalId":19671,"journal":{"name":"Open Journal of Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135157949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Validation of a Characteristics Dimensions for Transfers during Convective Drying of Sweet Potato Cubic, Cylindrical and Spherical Shapes 红薯对流干燥过程中转移特征尺寸的验证:立方、圆柱形和球形

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.1310135

Ouoba Kondia Honore, Ganame Abdou-Salam, Ibrango Abdoul Salam, Bama Désiré, Zougmore François

引用次数: 0

Prospects of Using Low-Code in the Creation of Automated Systems 在自动化系统创建中使用低代码的前景

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.1310147

Conrad Onesime Oboulhas Tsahat, NGOULOU-A-NDZELI, Patrick Aurélien Ampiri Kwai

引用次数: 0

An Information Content and Set of Common Superconcepts-Based Algorithm to Estimate Similarity between Concepts of Ontologies 基于信息内容和公共超概念集的本体概念相似度估计算法

Open Journal of Applied Sciences Pub Date : 2023-01-01 DOI: 10.4236/ojapps.2023.1311150

Gbede Sylvain Gbame, Maho Wielfrid Morie, Konan Marcelin Brou

{"title":"An Information Content and Set of Common Superconcepts-Based Algorithm to Estimate Similarity between Concepts of Ontologies","authors":"Gbede Sylvain Gbame, Maho Wielfrid Morie, Konan Marcelin Brou","doi":"10.4236/ojapps.2023.1311150","DOIUrl":"https://doi.org/10.4236/ojapps.2023.1311150","url":null,"abstract":"Ontologies have been used for several years in life sciences to formally represent concepts and reason about knowledge bases in domains such as the semantic web, information retrieval and artificial intelligence. The exploration of these domains for the correspondence of semantic content requires calculation of the measure of semantic similarity between concepts. Semantic similarity is a measure on a set of documents, based on the similarity of their meanings, which refers to the similarity between two concepts belonging to one or more ontologies. The similarity between concepts is also a quantitative measure of information, calculated based on the properties of concepts and their relationships. This study proposes a method for finding similarity between concepts in two different ontologies based on feature, information content and structure. More specifically, this means proposing a hybrid method using two existing measures to find the similarity between two concepts from different ontologies based on information content and the set of common superconcepts, which represents the set of common parent concepts. We simulated our method on datasets. The results show that our measure provides similarity values that are better than those reported in the literature.","PeriodicalId":19671,"journal":{"name":"Open Journal of Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135561053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0