bluuebunny/crossref_metadata_2025_split huggingface dataset:
Computer Application Of Edge Detection Of Substrate Image Considering Fuzzy Microflora Optimization Algorithm
Authors: Yu Tao 
Published: February 2021

Abstract
Due to the success of the study of bacterial flora algorithm, more and more scholars to simulate the natural biological phenomenon, and the research results are applied to the computer design, effectively solve the problem of large-scale optimization. Firstly, this paper introduces the optimization algorithm of microflora, and explains the application of fuzzy microflora optimization algorithm to the edge detection computer of substrate image to provide readers with reference.
RETRACTED: Analysis of How to Meet the Challenges Brought by the Development of Internet Finance and The Era of Big Data
Authors: Xian Ying 
Published: February 2021

Abstract
With the emergence and development of Internet finance, domestic commercial banks have begun to keep up with the trend of the times and gradually accelerate the pace of informatization. Except to some changes and adjustments made by these commercial banks, the addition of information technology is also very important. Based on previous work experience, this article summarizes the challenges brought by the development of Internet finance and the era of big data. The author discussed the development of Internet finance in the era of big data, from how to establish a big data credit investigation and Internet financial supervision system, optimize the customer management system, organize professional training on Internet finance, expand the scope of Internet finance propaganda, and establish more diversified overall risks these five aspects of the network.
Construction and Application Technology Architecture of Domain-specific Knowledge Graphin Military Field
Authors: Meng Xing , Li-ya Jin , Chao-hong Yang , Jian-quan Bi 
Published: February 2021

Abstract
Domain-specific Knowledge Graph in Military Field is a bridge to connect all kinds of battle factors, such as combat forces, command system, weapon platforms. It’s also an important means to break through the information gap between different areas of different services. Most of the existing knowledge graph is general knowledge graph for general fields, but there is no mature method of knowledge graph construction and expression for the industry data of military specific fields. So based on the special needs for military knowledge acquisition, storage, representation, query and other technologies in the future information and intelligent operations, and application scenarios, this paper discusses the current opportunities and challenges of the knowledge graph in military domain. Then the construction of knowledge graph in military domain and application technology framework are proposed.
A method for UAV monitoring road conditions in dangerous environment
Authors: Wang Xi , OuYang Chengtian , Shao Xiangling , Xu Hui 
Published: February 2021

Abstract
This paper analyzes the scene of UAV executing path monitoring task in dangerous environment, and puts forward a method for UAV path selection in dangerous environment. In the proposed method, the operator mode and the agent operator mode are provided, and the model checking tool prism is used to model and verify the path selection scene of UAV. In normal environment, the UAV performs the path selection under the operator mode, and counts the number of successful and failed photographing of UAV. When the UAV reaches the harsh environment area and loses contact with the operator, the UAV path in the past is analyzed through the agent operator mode, the judgment of the operator is simulated to enable the UAV to continue to carry out the path monitoring task. The UAV road condition monitoring scene in dangerous environment is analyzed and verified from different scales and different operator characteristics.
User Abnormal Viewing Behavior Detection Method Based On Canopy-FCM and Improved Isolation Forest Algorithm
Authors: Wu Yu , Liu Huiyong 
Published: February 2021

Abstract
In order to analyze the users’ viewing behavior more accurately, allow IPTV service providers to provide better services to users, and improve the user’s viewing experience, this paper proposes a detection method of abnormal user viewing behavior based on Canopy-FCM and improved isolation forest algorithm. First, the collected viewership data is preprocessed and stored with the user viewing behavior matrix, then the Canopy-FCM clustering algorithm is used to classify users with the same rating behavior. Then, an improved isolated forest algorithm is used to perform anomaly detection and analysis on the users classified above, and finally screen out abnormal user viewing behaviors. Finally, NMI indicators and ROC curves are used to evaluate the performance of the proposed algorithm to verify the feasibility of the proposed anomaly detection method. The results show that the method proposed in this paper has a high precision and recall rate for detecting users with abnormal ratings.
Research on the Algorithm of Locating and Cutting in License Plate Character Extraction
Authors: Yuan Bingjie , Yang Yuqing 
Published: February 2021

Abstract
To improve the real-time and accuracy of intelligent vehicle character recognition algorithm, this paper mainly studies a new method for license plate location and character cutting: license plate location is carried out by combining HSV color space recognition with Sobel edge detection. The outer rectangle of the outermost contour of the character is used to judge the character boundary and segment the character. First, the original picture is converted to the HSV space, then the color information of the license plate is combined with the edge information to locate the license plate roughly, and finally the specific position of the license plate is determined according to the aspect ratio of the license plate. The location of the license plate is extracted for character segmentation preprocessing. Then, by traversing, the contour which meets the aspect ratio condition is found and the corresponding circumscribed rectangle is taken. The coordinate information of the rectangle is extracted and stored as a matrix, which is the basis of character segmentation. It is proved that this method has better accuracy and reliability than the traditional methods.
Method of moments with a choice of special basic functions for fourth-order partial differential equations
Authors: Hieu L M , Hien N N , Thanh D N H , Van L T H 
Published: February 2021

AbstractThis paper presents an approximation method to solve the boundary value problem (BVP) for partial differential equations (PDEs) of a kind of the fourth order with the idea of discretization of a spatial variable by using the method of moments with a choice of special basic functions. A system of ordinary differential equations (ODEs) is obtained by multiplying the original equation by some auxiliary functions, followed by interpolation and integration over the spatial variable. Newton-Stirling, Hermite-Birkhoff and Hermite interpolations are flexibly applied to internal and pre-boundary nodes. In addition, boundary conditions are automatically satisfied without being approximated separately as in classical numerical methods (for example, method of grids, method of lines). Thus, the proposed schemes have a higher order of approximation. The main goal of the work is the construction of basic functions for a fourth-order differential operator and a possible increase in the order of the remainder term when passing to difference equations.
Recommendation System for Department Selection at Vocational High School (VHS) Using the Yager Model Fuzzy Multi-Attribute Decision Making (FMADM) Method
Authors: Syafitri N A , Wiharto  , Suryani E 
Published: February 2021

Abstract
The rapid growth of technology and knowledge requires efforts to improve human resources, one of which is improving the quality of vocational education. Vocational education is the implementation of formal education channels held in higher education one of which is the Vocational High School (VHS). VHS graduates with quality potential can increase superior human resources. The problems encountered are students who want to enter vocational schools, often have difficulty in choosing majors by their potential, mistakes in choosing majors cause students who have entered vocational schools to become graduates who are less superior. One of the solutions to this problem is to create a system that can recommend majors that are in sequence with student potential. One of the benefits if the students know the major recommendations according to student abilities, then when students carry out academic leraning will produce optimal achievement and be able to develop their abilities to the maximum and become superior vocational high school graduates. The method used in the calculation of this study is the Yager Model Fuzzy Multi-Attribute Decision Making (FMADM) method to provide the results of the major’s recommendations by student potential. The attributes used in the selection of these majors are academic value, talent value, interest value, intelligence quotient (IQ), parental support levels, achievement motivation, student’s attitude, student’s independence, and student’s health. Testing the recommendation system for the selection of VHS majors using the Yager Model FMADM method is obtained in the first scenario, the results of the recommendations at the top 10 results in an appropriate conformity value of 95.00% and not 5.00%. In the second scenario, the results of the recommendations at level 3 result in an appropriate suitability value of 82.50% and an unsuitable value of 17.50%. Based on this suitability, the FMADM Model Yager method can be implemented and produce recommendations according to student potential.
Development of highly durable retinal prosthesis using photoelectric dyes coupled to polyethylene film and quantitative in vitro evaluation of its durability
Authors: Yamashita Koichiro , Tanaka Tenu , Matsuo Toshihiko , Uchida Tetsuya 
Published: February 2021

Abstract
Retinal prostheses have been developed to restore vision in blind patients suffering from such diseases as retinitis pigmentosa. In our previous studies, we developed a retinal prosthesis called dye-coupled film by chemical coupling of photoelectric dyes, which absorb light and then generate electrical potential, with a polyethylene film surface. The dye-coupled film is nontoxic, and we recovered the vision of a monkey with macular degeneration. The amount of dye on the dye-coupled film, however, decreased to one-third after five months in the monkey’s eye. The photoelectric dye consists of a cation with photoresponsivity and a bromide ion (Br−). Therefore, an anion-exchange reaction could be applied to the dye-coupled film to improve its durability. In this study, the anion-exchange reaction was conducted using bis(trifluoromethanesulfonyl)imide ion (TFSI−), which has lower nucleophilicity than Br−. First, the long-term durability was examined without using animal subjects and in a short period. Subsequently, an elemental analysis was performed to confirm the exchange between Br− and TFSI−, and chemical properties, such as photoresponsivity and durability, before and after the anion exchange, were evaluated. It was quantitatively confirmed that the long-term durability of dye-coupled films can be evaluated in an in vitro environment and in a short period of one-thirtieth by utilizing a saline solution at 60 °C, compared with an in vivo environment. In addition, the durability of the dye-coupled film with TFSI− was improved to 270%–320% compared with that of the dye-coupled film with Br−.
Macrophages activated by akermanite/alginate composite hydrogel stimulate migration of bone marrow-derived mesenchymal stem cells
Authors: Zhu Yanlun , Deng Shuai , Ma Zhijie , Kong Lingzhi , Li Haiyan , Chan Hon Fai 
Published: February 2021

Abstract
Akermanite (Aker) has been widely used for bone regeneration through regulating osteogenesis of bone marrow-derived mesenchymal stem cells (BMSCs). Previously, we developed an injectable Aker/sodium alginate (Aker/SA) hydrogel to facilitate bone regeneration. However, the effect of this injectable hydrogel on the in vivo response, particularly the inflammatory response, has not been fully understood. Here, to elucidate the response following the implantable of Aker/SA hydrogel, we investigated the interaction among Aker/SA hydrogel, inflammatory cells and cells involved in bone regeneration (BMSCs). Specifically, we cultured macrophages (RAW 264.7 cell line) with the extract liquid of Aker/SA and assessed their phenotypic changes. Subsequently, BMSCs (2 × 105 cells per 24 well) were cultured with different conditioned media including that of Aker/SA hydrogel-activated macrophages to investigate their effect on cell migration. Finally, Aker/SA hydrogel was injected subcutaneously (1 × 106 cells ml−1) in rat to verify its effect in vivo. The in vitro results indicated that Aker/SA hydrogel activated macrophages towards M2 phenotype and stimulated macrophages to express anti-inflammatory factors. In addition, the conditioned medium collected from Aker-activated macrophages could accelerate the migration of BMSCs in 24 h. Consistent with the in vitro results, when the Aker/SA hydrogel was injected subcutaneously, more M2 macrophages could be observed than when the SA solution was injected after 7 d. Besides, when BMSCs were delivered via subcutaneous injection, more BMSCs were recruited by the Aker/SA hydrogel than the SA solution. All these results suggest that the Aker/SA hydrogel can modulate the immune environment at the implantation site and subsequently recruit BMSCs, which can be one of the mechanisms through which the Aker/SA hydrogel accelerates new bone formation.
The 300 years cropland changes reflecting climate impacts and social resilience at the Yellow River–Huangshui River Valley, China
Authors: Chen Qiong , Yang Liang Emlyn , Luo Jing , Liu Fenggui , Zhang Yili , Zhou Qiang , Guo Rong , Gu Xijing 
Published: February 2021

Abstract
Changes of croplands often reflect the combined impacts of both natural environment changes and social agriculture activities. Such reflections manifested more significantly in agro-pastoral transition zones, e.g. in the North and West of China. In this study, cropland changes at the Yellow River–Huangshui River Valley, as a typical agro-pastoral transition zone in northwestern China, is analyzed in terms of the changes of the total amount and spatial pattern over the past 300 years (majorly in the Qing Dynasty). The reconstructed cropland data indicated a fluctuation of cropland areas in accordance with changes of regional climate conditions, natural hazards, agriculture activities and socio-economic development. A significant decrease of cropland in the middle of the 19th century was detected, which appeared a good consistency with the frequent natural disasters in the same period and the climate cooling trend across the whole 19th century. Though in the worsening conditions, three major copping strategies maintained and developed the local socio-agriculture system: (a) land reclamation policy encouraged immigrants and military farming; (b) construction of water conservancy facilities increased agricultural productivity; (c) increasing local Tibetans learned and transformed to implementing both agriculture and pastoral productions with flexibilities depending on climate conditions. The study demonstrates that the social-agriculture system held certain resilience, which can be maintained and enhanced with appropriate political, engineering, economic, and social-cultural measures.
Unemployment of the built environment graduates
Authors: Fika M , Adeniran AA , Botha B 
Published: February 2021

Abstract
The challenge of unemployment of built environment graduates is recurrent and this paper aims at presenting findings on the inherent factors therein and make recommendations towards ameliorating this challenge. A quantitative method was adopted for the data collection and the data was organized, analyzed and presented with descriptive statistics. The population sample was limited to the Nelson Mandela University Built Environment Graduates. The study discovered that there were difficulties in securing employment as a result of lack of practical experience, current curriculum and the dearth of skills. The study provides information towards the resolving this challenge arising from the factors identified as causative for unemployability and identifies the need for taught and practical skill and experience to be embedded in the curriculum to stimulate the level of employability.
Household Water Stress, Adaptation and Resilience in Some Selected Peri-urban and Rural Communities of Oyo State, Nigeria
Authors: Popoola Ayobami , Magidimisha-Chipingu Hangwelani , Chipungu Lovemore , Adeleye Bamiji , Akogun Olawale , Medayese Samuel 
Published: February 2021

Abstract
The condition of water infrastructure in selected village communities along peri-urban and rural corridors of Oyo State can be said to be in a state of colossal infrastructural waste and communal neglect. Using a mixed approach, the study examines household water stress and adaptation. Evidence shows that peri-urban villages and rural areas in Oyo State buy water and that water facility maintenance is limited by the high cost of repairs and limited inter-community cooperation. It was also revealed that many households are vulnerable to water-borne diseases owing to a lack of a potable water source. It was revealed 50.4% of the households travel less than 30m to fetch potable water, 17.1% travel between 31 to 60m, while the remaining 32.5% travel over 100m to fetch water. The study suggests that the strategic location of the capital city and LGAs’ headquarters must be considered as this often influences water infrastructure access and availability. The strategic location of infrastructure is considered relevant in the transformation of the selected communities towards sustainability environment and improved liveability.
The need to improve current waste management practices in the area of construction waste reduction
Authors: Mbadugha L C , Ozumba Aghaegbuna O U , Shakantu Winston M W 
Published: February 2021

Abstract
The study will appraise the need to improve current waste management practices in the area of construction waste reduction. An integrative review of purposively sampled literature on CW construction waste reduction practice is used to arrive at propositions for an improved practice to achieve more sustainable outcomes. The study will establish the need for a paradigm shift in waste management researches in the area of construction waste reduction to target a higher degree of such philosophy at building design development stage, and not just quantity reduction. Results show that existing waste reduction practices are sub-optimally exploited, which appears as consistent waste generation. There is an opportunity for quality results when the industry aims at best the practice that will affect the process, quality, and performance during the building design process. This study will inform the construction professionals to aim at achieving more than just waste reduction at building design development.
The potential for economic impact of the KZN department of education infrastructure delivery programme
Authors: Mashigo A S , Javani B , Babatunde O K 
Published: February 2021

AbstractThe purpose of this study was to look at the KwaZulu-Natal (KZN) Department of Education (DoE) infrastructure delivery programme in a bid to assess its potential impact on the economic growth of KZN. A mixed research approach was used to analyse existing data obtained through document review and semi-structured cross-sectional interview design with contractors to establish the link between their actions and elements of the GDP. The triangulated empirical findings suggest that KZN’s DOE infrastructure delivery programme has a low potential to impact economic growth. The practical implications include the low impact arising from no concerted efforts to align programmes to economic fundamentals and leakages arising from inefficiencies, red tape, low capacity utilisation of resources, the poor performance of agents, consultants, contractors and low staff productivity. Recommendations were further made on institutional reforms, policy enhancement and reduction of transactions costs in the value chain. The recommendations also serve as bases for future research implications necessary for sector transformation and sustainable construction in KZN.
The need investigate career progression of female professional employees in the South African construction industry
Authors: Ndweni Mbalenhle P. , Ozumba Aghaegbuna O. U. 
Published: February 2021

Abstract
The purpose of the study is to investigate factors influencing career progression of female professional employees in the construction industry in order to identify challenges and suggest possible mitigations. An integrative review of purposively sampled literature on career progression is used to arrive at challenges to career progression faced by female professionals in the South African construction industry. The limitation of the study is its theoretical nature at this stage. Findings show that involvement of women in the construction industry has increased. However, women apparently still face challenges in progressing to senior positions in their careers. Some noted common factors include training, mentoring support, and networking. Implications of the study include the need to study factors influencing female career progression with the support of empirical data. There is also a need to examine the factors that act as barriers and analyse their nature in order to develop possible mitigations, which are also nuanced with the experiences of the subject population. The study forms a basis for understanding influencing factors and challenges to career progression of female professionals. This study is at its early stage of a more extensive research project and will be used as the foundation for empirical studies.
Analysis of construction worker’s demotivation that affect productivity in the South African Construction Industry
Authors: Jesumoroti C , Draai W 
Published: February 2021

Abstract
The research study was carried out on the investigation to the extent at which demotivation affect construction workers to perform higher levels of productivity. While worker motivation has been proven to improve productivity globally, motivation was rarely implemented in South African conditions. This study gauges the construction workers’ viewpoint on how motivational strategies can improve worker productivity. A pilot study was done in the preliminary phase to study in other to gain more insight into the study. A quantitative survey was used with structured survey for workers including electricians, earth workers, plumbers, bricklayers, and experts. Questionnaire was administered in Nelson Mandela Bay Metropole, South Africa at selected construction companies. Most prevalent in the findings of this study is the fact that the workers agreed that a lack of supervisory motivational techniques negatively impact their output. Research study hence finalize that managerial motivational strategies are required to enhanced construction workers’ productivity on a construction sites. Hence, there was suggested that supervisors use motivational communication, extrinsic rewards, intrinsic rewards and positive reinforcement for construction workers so as to increase their performance.