bluuebunny/crossref_metadata_2025 huggingface dataset:
Facile synthesis of a sintering-resistant zeolite confined Ni catalyst for efficient COx-free hydrogen generation from ammonia decomposition
Authors: Wan Zhijian , Tao Youkun , You Hengzhi , Shao Jing
Published: May 2021

Ni nanoparticles of ∼2 nm in diameter were homogeneously confined in the ZSM-5 zeolite for use as a catalyst to effectively crack ammonia for COx-free H2 production. The catalysts showed not only high activity but also high resistance to sintering.
Understanding and mitigation of NaTi2(PO4)3 degradation in aqueous Na-ion batteries
Authors: Plečkaitytė Gintarė , Petrulevičienė Milda , Staišiūnas Laurynas , Tediashvili Davit , Pilipavičius Jurgis , Juodkazytė Jurga , Vilčiauskas Linas
Published: May 2021

Increasing local pH due to oxygen reduction induced self-discharge is the main mechanism of material dissolution and capacity fade of NaTi2(PO4)3 electrodes in aqueous media. This problem can be strongly mitigated by ALD of a protective Al2O3 layer.
Mechanochemically synthesized Pb-free halide perovskite-based Cs2AgBiBr6–Cu–RGO nanocomposite for photocatalytic CO2 reduction
Authors: Kumar Santosh , Hassan Idil , Regue Miriam , Gonzalez-Carrero Soranyel , Rattner Eduardo , Isaacs Mark A. , Eslava Salvador
Published: May 2021

Mechanochemically synthesized stable and high performance Cs2AgBiBr6–Cu–RGO nanocomposite as a potential lead-free halide perovskite-based photocatalyst candidate for long-term application in solar fuel production.
Series to parallel structure of electrode fiber: an effective method to remarkably reduce inner resistance of triboelectric nanogenerator textiles
Authors: Jing Titao , Xu Bingang , Xin John H. , Guan Xiaoyang , Yang Yujue
Published: May 2021

The basic physical concept of the smaller resistance of a parallel circuit was applied to triboelectric nanogenerator (TENG) fiber/textiles to dilute the negative effects of the large resistance of stretchable electrode fibers.
Eutectic doped Li4SiO4 adsorbents using the optimal dopants for highly efficient CO2 removal
Authors: Yang Yuandong , Cao Jixue , Hu Yingchao , Sun Jian , Yao Shun , Li Qiuwan , Li Zexin , Zhou Shimeng , Liu Wenqiang
Published: May 2021

Twelve kinds of molten salts were screened for optimizing the effects of eutectic doping on Li4SiO4-based CO2 adsorbents. More importantly, three criteria were summarized for the future selection of potential eutectic dopants.
Enhancing the efficiency and stability of two-dimensional Dion–Jacobson perovskite solar cells using a fluorinated diammonium spacer
Authors: Wang Di , Chen Shan-Ci , Zheng Qingdong
Published: May 2021

2,3,5,6-Tetrafluoro-1,4-benzenedimethanammonium is developed for 2D Dion–Jacobson perovskite solar cells which exhibit a significantly improved efficiency in comparison with that for the nonfluorinated diammonium-based counterparts.
Enhancing the stability of perovskite solar cells through cross-linkable and hydrogen bonding multifunctional additives
Authors: Li Xiaodong , Ke Shanzhe , Feng XiuXiu , Zhao Xiaoyan , Zhang Wenxiao , Fang Junfeng
Published: May 2021

DPPA additive is introduced into perovskite film to inhibition migration through crosslinking and hydrogen bonding. Resulting devices exhibit >22% efficiency good stability, retaining >90% of maximum efficiency after MPP tracking for 800 hours.
Spinning continuous high-strength bacterial cellulose hydrogel fibers for multifunctional bioelectronic interfaces
Authors: Zhang Minghao , Chen Shiyan , Sheng Nan , Wang Baoxiu , Wu Zhuotong , Liang Qianqian , Han Zhiliang , Wang Huaping
Published: May 2021

The realization of the reconciliation of contradictory multi-properties required for hydrogel fibers as bioelectronic interfaces.
Ultrasensitive humidity sensing and the multifunctional applications of borophene–MoS2 heterostructures
Authors: Hou Chuang , Tai Guoan , Liu Yi , Wu Zitong , Wu Zenghui , Liang Xinchao
Published: May 2021

A fabricated borophene–MoS2 heterostructured sensor shows ultrahigh sensitivity, fast response, long life, good flexibility and high selectivity, which exhibits potential applications in human breath diagnosis and non-contact switch sensing systems.
Electrical resistance change in thermally reconfigured nanoporous ionomer-bound carbon films
Authors: Pyo Jae-Bum , Kim Ji Hun , Kim Kiyoul , Kim Taek-Soo
Published: May 2021

Thermally self-changed electrical resistance in nanoporous ionomer-bound carbon films is presented and the nanostructural origin of the change is unveiled.
Breaking the upper bound of siloxane uptake: metal–organic frameworks as an adsorbent platform
Authors: Gulcay-Ozcan Ezgi , Iacomi Paul , Ko Youngsang , Chang Jong-San , Rioland Guillaume , Devautour-Vinot Sabine , Maurin Guillaume
Published: May 2021

High throughput computational screening in tandem with synthesis and adsorption testing revealed hydrophobic Zr-MOF PCN-777 as an optimal siloxane adsorbent with record gravimetric uptake (1.8 g g−1), reversible and fast adsorption, good cyclability and easy regeneration.
Electrocaloric refrigeration capacity in BNT-based ferroelectrics benefiting from low depolarization temperature and high breakdown electric field
Authors: Zhang Ling , Zhao Chunlin , Zheng Ting , Wu Jiagang
Published: May 2021

High electrocaloric performance around room temperature is achieved in lead-free (Bi0.5Na0.5)TiO3-based ceramicsviaenhancing the breakthrough electric field and lower depolarization temperature.
Electrospun heparin-loaded nano-fiber sutures for the amelioration of achilles tendon rupture regeneration: in vivo evaluation
Authors: Ye Yajing , Zhou Yaqing , Jing Zhuoyuan , Xu Yifan , Yin Dachuan
Published: May 2021

Peritendinous blood circulation improvement is a challenge to promote the healing of ruptured tendons in clinical treatment.
Mitochondria-targeted carbon monoxide delivery combined with singlet oxygen production from a single nanoplatform under 808 nm light irradiation for synergistic anticancer therapy
Authors: Tang Qi , Zhang Hai-Lin , Wang Yi , Liu Jing , Yang Shi-Ping , Liu Jin-Gang
Published: May 2021

Combining mitochondria-targeted CO delivery and photodynamic therapy, a multifunctional MnCO@TPP@C–TiO2 nanoplatform showed a remarkable enhanced antitumor effect under NIR light irradiation.
Smart scaffolds: shape memory polymers (SMPs) in tissue engineering
Authors: Pfau Michaela R. , Grunlan Melissa A.
Published: May 2021

Smart scaffolds based on shape memory polymer (SMPs), and their typical modes of delivery into tissue defects.
Bimetal–organic frameworks derived tuneable Co nanoparticles embedded in porous nitrogen-doped carbon nanorods as high-performance electromagnetic wave absorption materials
Authors: Pan Jiannan , Yang Huadong , Hong Qu , Wen Hui-Min , Xiao John Q. , Hu Jun
Published: May 2021

Bimetal-organic frameworks derived tuneable Co nanoparticles embedded in porous nitrogen-doped carbon nanorods for electromagnetic wave absorption applications.
Dysprosium–dianthracene framework showing thermo-responsive magnetic and luminescence properties
Authors: Zou Qian , Shang Tao , Huang Xin-Da , Guo Qing-Qing , Jia Jia-Ge , Bao Song-Song , Zhang Yi-Quan , Zheng Li-Min
Published: May 2021

Three-dimensional framework Dy2(amp2H2)2(C2O4)(H2O)2·10H2O exhibits thermo-induced dehydration and de-dimerization of amp2H22−, accompanied by changes in its single-molecule magnetic behaviour and luminescence properties.
Enhanced electrocatalytic performance in dye-sensitized solar cell via coupling CoSe2@N-doped carbon and carbon nanotubes
Authors: Wang Wen , Cui Qiaoyu , Sun Dong , Yang Qun , Xu Jun , Liao Wei , Zuo Xueqin , Tang Huaibao , Li Guang , Jin Shaowei
Published: May 2021

The DSSC equipped with the CoSe2@NC-CNT CE achieved an excellent power conversion efficiency (PCE) of 9.25%, which is superior to that of Pt (7.81%). It can be ascribed to the fine meshwork architecture and enhanced electronic transport capability.
Narrow-band red phosphors of high colour purity based on Eu3+-activated apatite-type Gd9.33(SiO4)6O2
Authors: Rodríguez-García Melissa M. , Ciric Aleksandar , Ristic Zoran , Williams J. A. Gareth , Dramićanin Miroslav D. , Evans Ivana Radosavljevic
Published: May 2021

A series of new red phosphors based on apatite-type gadolinium silicate host, Gd9.33−xEux(SiO4)6O2 (0.03 < x < 1.87), have been synthesised and analysed.
Deep Q‐network implementation for simulated autonomous vehicle control
Authors: Quek Yang Thee , Koh Li Ling , Koh Ngiap Tiam , Tso Wai Ann , Woo Wai Lok
Published: May 2021

Deep reinforcement learning is poised to be a revolutionised step towards newer possibilities in solving navigation and autonomous vehicle control tasks. Deep Q‐network (DQN) is one of the more popular methods of deep reinforcement learning that allows the agent that controls the vehicle to learn through its mistakes based on its actions and interactions with the environment. This paper presents the implementation of DQN to an autonomous self‐driving vehicle control in two different simulated environments; first environment is in Python which is a simple 2D environment and then advanced to Unity software separately which is a 3D environment. Based on the scores and pixel inputs, the agent in the vehicle learns and adapts to its surrounding. It develops the best solution strategy to direct itself in the environment where its task is to manoeuvre the vehicle from point to point on a simulated highway scenario. The implemented DQN technique approximates the action value function with convolutional neural network. This evaluates the Q‐function for the Q‐learning architecture and updates the action value function. This paper shows that DQN is an effective learning method for the agent of an autonomous vehicle. In both simulated environments, the autonomous vehicle gradually learnt the manoeuvre operations and progressively gained the ability to successfully navigate itself and avoid obstacles without prior information of the surrounding.
Accurate prediction of radio wave propagation in an environment of dielectric ground and obstacles based on the principle of domain decomposition
Authors: Li An‐qi , Yin Cheng‐you , Gan Yong‐ji , Wu Wei
Published: May 2021

To study the problem of radio wave propagation in an environment of dielectric ground and obstacles, especially in low‐lossy obstacles, to consider the propagation inside the obstacle, a new method is proposed to solve the two‐way parabolic equation based on the principle of domain decomposition. First, a mathematical model of parabolic equations for reflection and refraction in an environment with obstacles is established. Then, the area of the obstacle is decomposed into two different subdomains; the discrete mixed Fourier transform is used to calculate the field value in the upper subdomain from the top of the obstacle to the absorption boundary, the finite difference method is used to calculate the field value of the lower subdomain inside the obstacle, and the field strengths and phases of the two subdomains coordinate with the boundary conditions. In the process of calculation, we emphatically consider the multiple reflection and transmission paths inside obstacles to make the algorithm results more accurate. In addition, we verified the stability and convergence of the method. Finally, the simulation results show that the proposed method and the method of moments have good consistency, so the algorithm has the characteristics of strong applicability and fast calculation speed, which provide a novel and reliable method to research the wave propagation problem in a modified environment of obstacles.
Study on Seismic Damage Mechanism of Dredger Fill Ground in Tianjin Binhai Area
Authors: Zhanling Fu , Fang Liu , Jingquan Cao , Wuping Gao , Xinqiang Yao
Published: May 2021

Tianjin binhai new area has a large area of dredger fill groud, And it is easy to produce dredger fill seismic settlement and saturated sand liquefaction under earthquake action. We simulate seismic subsidence state of Dredger Fill and liquefaction state of saturated sand under the 50-year probability of exceedance of 10% and 2% probability level earthquake by using Finn constitutive model in a certain soft foudition of Tianjin binhai new area. The results show that: Both seismic subsidence and liquefaction of saturated sand are the transition process from effective stress to pore water pressure. Moreover, dredger fill and saturated sand soil in the stronger the earthquake and the shallower buried depth are more likely to collapse and liquefaction.
The Study on the Influence of Workplace Gossip on Employees' Work Enthusiasm
Authors: Yan Liang , Zhang Qian
Published: May 2021

The impact of workplace gossip on employees has become a hot topic among researchers and practitioners. The research integrates both positive and negative dimensions, and more comprehensively explores the influence of workplace gossip on employees' work enthusiasm to make theoretical contributions to workplace gossip research. Based on the valid sample of 201 employees from various types of enterprises in Xi’an, the study uses SPSS 21.0 and AMOS 24.0 software to conduct data analysis and test the research hypothesis. The empirical results show that positive gossip in the workplace has a significant positive impact on employees' work enthusiasm, and negative workplace gossip has a significant negative impact on employees' work enthusiasm. Finally, according to the research results, this article puts forward corresponding management improvement strategies and suggestions.
Application of BIM Technology in practical teaching of Engineering Management Specialty
Authors: Li Li
Published: May 2021

At present, building information modeling is widely used in many stages of project life cycle. On the basis of combing the practical teaching of engineering management specialty, this paper analyzes the practice teaching conditions based on BIM Technology in application-oriented universities, and puts forward the construction measures of teaching system of BIM Technology in engineering management practice teaching.
Political Education of College Students in the New Media Ambient
Authors: Peng Yan
Published: May 2021

With the development of quality education in China, the area of quality education is more and more extensive. Therefore, higher vocational colleges, as the cradle of talent training, have also been highly valued. Now, the political education of college students is facing a severe situation, which has a subtle impact on the employment and future career development of students. The specious information in the new media ambient has a far reaching impact on people's value judgment and value choice, leading to the distortion of people's values and alienation of behavior. With the emergence of new media, college students have become main audience of new media, and the new media ambient has constantly affected the cognitive and behavioral style of higher vocational college students, resulting in the cognitive distortion, thinking first, Behavior Alienation and other adverse effects of higher vocational students, this has seriously hindered the olitical education of higher vocational students. The political education of college students will directly affect the development of our talent strategy. Therefore, this paper discusses the political education in the new media ambient, from creating a positive network culture ambient in the new media ambient, and actively establishing a new media platform on campus to strengthen its effectiveness, so as to provide guidance and reference for the old teachers of political education and related education practitioners.
Analysis on Development Efficiency of Rural E-commerce Based on DEA in Sichuan Province
Authors: Zhang Yi , Deng Ruiqi , Chen Jiaying , Yi Zuyu
Published: May 2021

Under the background of the new era, the development efficiency of rural e-commerce is closely related to the context of rural revitalization. As a big agricultural province in China, Sichuan Province has actively developed rural e-commerce in recent years. Based on the two-year field survey data, government website data, select talent reserve, logistics construction, policy support as input indicators, e-commerce development level, poverty alleviation effect as output indicators, the DEA analysis method is used to analyze the problems of regional development of rural e-commerce in Sichuan, such as imbalance, unreasonable input resources, etc. Based on this, this paper puts forward some suggestions on the development of rural ecommerce talents, the matching of capital injection and demand, and the orientation of rural e-commerce in order to provide reference for the development of rural e-commerce in Sichuan counties.
Research on the Functions of Users’ Emotions in Social Media Product Design
Authors: Chen Kaiyue
Published: May 2021

With the prevalence of social media, which integrates into individuals’ routine life, the emotions of users partially direct the content that published on platforms, and it has become an unignorable element during social networking sites operation. Appropriately utilizing emotions is an feasible and effective method of enhancing profit. To figure out the impacts that generated by the designs of social media platforms on users’ emotions, and the corresponding influences of emotions on advertisements, this paper focuses on the designs, including the homepage and hashtags, and their functions on mainstream social networking services (SNS) inside and outside the domain, such as Sina Weibo, Twitter, Instagram, and TikTok. The effects of group users against individual users concerning emotion are discussed, and the positive and negative effects on devised advertisements when taking advantage of users’ emotions are also analyzed.
Evaluation of Germany’s Vulnerability Based on Economic Principles and Data Science
Authors: Li Yiliang , Wu Maoguo
Published: May 2021

Vulnerability refers to the ability of a country or a region to resist internal and external natural factors such as ecological environment, economy, and society during its development. Germany is a country with low overall vulnerability and distinct regional differences, so research on its regional vulnerability can be a representative case for developing countries, as it provides a comprehensive assessment of regional vulnerability via scientific methodology and at the same time proposes rational solutions. The research collects quarterly data of 16 states of Germany from 2000 to 2015. This study describes a series of features of the data and establishes a comprehensive assessment of regional vulnerability including 33 indicators. Combined with the multi-criteria decision analysis method (MCDM), the analytic hierarchy process (AHP) method and the entropy method are applied to calculate the weights. A linear weighted sum method is applied to obtain the regional vulnerability index of Germany. Afterwards, by performing regression tests, this study empirically assess the influencing factors of the regional vulnerability of Germany. Moreover, this study adopts the neural network training model and forecasts the regional vulnerability of Germany of 2016 to 2020. This study identifies the main factors that influence the regional vulnerability of Germany, and proposes policy implications on the overall regulation to reduce the vulnerability of different regions in Germany accordingly.
A Research Review on Job Shop Scheduling Problem
Authors: Yu Yingchen
Published: May 2021

In recent years, the manufacturing industry has developed rapidly with fierce competition. Manufacturing enterprises are faced with the challenge of on-time delivery, multiple product choices and quick response to order modification. Reasonable and efficient production scheduling determines whether the enterprise can continue to survive. Therefore, the study of job shop scheduling problem has practical significance. This paper summarizes the research development and current situation of job shop scheduling problem, classifies the existing research methods, and discusses the future research direction of job shop scheduling problem.
Research on Agricultural Products Logistics and Supply Chain System Based on Computer Big Data Model
Authors: Yao Wei , Li Na
Published: May 2021

With the development of the market, the traditional production and circulation mode of agricultural products can no longer meet the requirements of market informatization and supply chain development. Therefore, it is necessary to study a new production and circulation method of agricultural products to solve the problems caused by traditional methods. We build an innovation system for agricultural product supply chains led by big data service providers, integrating agricultural product supply chain resources, reducing agricultural product circulation links, reducing costs, achieving agricultural product traceability, and ensuring agricultural product quality and safety. Based on this, this article proposes an agricultural product supply chain model based on an integrated management platform, and conducts in-depth research on the logistics operation logic of agricultural product supply chain to provide theoretical basis and data support for the design and development of the management platform.
The Application of BIM to Project Cost Management
Authors: Ha lina
Published: May 2021

Nowadays among numerous industries that are undergoing continuous development along with China’s rapid economic growth is the noticeable one, building or construction industry. A building or construction project is composed of many parts, including project costs. This paper presents a basic introduction of the BIM technology, project cost management and the latter’s importance. On the basis of that and practical cases, the application of BIM to project cost management is analyzed and its advantages are summarized.
A Study on the Structural Model of Human Resources Cooperative Development from the Perspective of Beijing-Tianjin-Hebei Integration
Authors: Qingchun Yue
Published: May 2021

As the integration of Beijing-Tianjin-Hebei becomes a national strategy, the integration process of Beijing-Tianjin-Hebei continues to deepen. The abundant human resources in the region provide a strong guarantee for coordinated development and also support an important engine for coordinated development. Starting from the realistic background of the coordinated development of human resources in the region, this paper systematically analyzes the theoretical basis of coordinated development, and puts forward scientific and reasonable policy recommendations from the perspective of theoretical models. This not only has important theoretical significance, but also has a little practical value for improving the level of human resources coordination and fully implementing the integration strategy.
Research on practical teaching of virtual reality integration of Engineering Management major from the perspective of New Engineering
Authors: Lijuan Luo
Published: May 2021

Starting from the practical significance of "New Engineering" to the practical teaching reform of engineering management specialty, this paper analyzes the current situation of practical teaching of engineering management specialty, expounds the construction ideas of practical teaching system of virtual and real integration of engineering management specialty from the perspective of new engineering, and puts forward the integration of practical teaching content, construction of virtual and real integration practice teaching platform and diversified evaluation system, so as to improve young teachers Engineering practice ability and other safeguard measures. Practice shows that practice teaching is the main channel to cultivate engineering practice ability and core competitiveness of engineering management students.
Critical success factors associated with time performance in prefabricated construction
Authors: Zhao Mingyue
Published: May 2021

Prefabricated construction becomes an increasingly important construction mode especially for buildings that require a short construction time. The construction of Huoshenshan Hospital shows how efficient prefabricated construction could be. In order to provide a clearer blueprint for how to improve time performance in prefabricated construction, this paper identifies 13 important critical success factors associated with time performance and groups them into five categories—project planning and design, supply chain, techniques, teamwork, and external influences. The findings of this paper provide a better understanding of time management in prefabricated construction, which can help to develop appropriate strategies to improve productivity.
Comparative Analysis of Equipment Cost Structure Optimizing Methods
Authors: Chen Guowei , Zhou Yujing , Fan Juqin
Published: May 2021

Four optimizing methods of equipment cost structure were detailedly analyzed based on their theories. The strengths and weaknesses of the four optimizing methods were analyzed and compared each other. And the characteristics of system dynamics were introduced. It was found that the weaknesses of the four optimizing methods were just made up by the characteristics of system dynamics. It was put forward that system dynamics is better than the four methods in optimizing equipment cost structure at the moment. This viewpoint not only enriches the categories of optimizing methods for equipment cost structure, but also explores a new way for optimizing equipment cost structure in practice.
Research Hotspot Analysis of EPC Pattern Based on CiteSpace in China
Authors: Aimin Li , Jing Lu
Published: May 2021

In this paper, 385 articles from 2010 to 2020 in CNKI database are visualized and analyzed by using CiteSpace software, and corresponding knowledge maps are drawn to mine the literatures related to EPC, this paper describes the current research trends and hot spots in the field of EPC. It is found that the research on EPC mode management has received high attention. Meanwhile, the coordination and management between general contractors, subcontractors and owners, project management, international engineering and hydropower engineering are also the main research hotspots.
Coupling and Coordination Measurement of the Development Level of China’s Financial Industry and Logistics Industry
Authors: Zhou Qiqing , Kong Yuhan , Yin Panpan
Published: May 2021

Based on the panel data of 31 China’s provinces and cities, depending on discussing the significance of the coordination development of the financial industry and the logistics industry, the entropy method and the coupling coordination degree model were used to empirically analyze the dynamic coupling development of China's financial industry and logistics industry. Empirical analysis shows that during the sample period, the coordination development level of China's logistics industry and the financial industry had achieved a transition from overall disorder to overall coordination, but there was still a large potential for improvement. The level of coupling and coordination development was east-central-west declining trend in three steps. Guangdong was the province with the highest level of coupling and coordination development. Tibet, Qinghai, Ningxia, Hainan, and Tianjin were the provinces and cities with the lowest level of coupling and coordination development.
Research on Application of Cold Chain Logistics Management Based on Big Data Technology
Authors: Li Na , Yao Wei
Published: May 2021

Compared with developed countries, the cold chain logistics of agricultural products in china is wasteful, which not only consumes a lot of labor and natural resources, but also reduces the domestic and international competitiveness of agricultural products. The paper analyzes outstanding issues such as cold chain "broken chain", "information islands", and cold chain "food safety". Through the integration of advanced information technologies such as big data and mobile internet, a cold chain logistics engineering management technology platform is established to establish a national The data analysis center and the national cold chain logistics big data real-time monitoring and early warning platform, open up the logistics information chain, realize the full traceability of logistics information, promote the effective docking of logistics information and public service information, and encourage the sharing of information on logistics platforms between regions and industries. interconnection.
Transformation of Business Analytics from Business Intelligence
Authors: Zhao Yifan
Published: May 2021

With the development of economy, numerous techniques, tools, and concepts have appeared to fit the intensive and competitive market. Especially for some enterprises in retail industry, they face the problem of digital transformation, which requires advanced organizational strategies, business analytics technology, dynamic capabilities, value-creating actions to help solve the problem. This paper analyzes the real cases of digital transformation in some Chinese enterprises to show how business intelligence gradually developed into business analysis and how it creates value to the business. Real experience of the author and the research resources of her internship in a consulting company are also shared. Enterprises often use SAP, ERP, IaaS, SaaS, PaaS to build the cloud services and infrastructure of data ware, which are the products of business analytics. The author analyzes how business analytics help enterprises use effective and intelligent analysis on the data and business to improve the performance of the enterprises, which can make the enterprises become competitive and outstanding. In addition, the difference between business intelligence and business analytics, and how the value business analytics creates to the enterprises in theoretical and practical way are introduced. Finally, the author finds the significant of data and analytical tools to the present and future development in different industries, and predicts the general trend that might happen in the future. People can also realize the impact that data brings to their daily life.
Study on Cooperative Culture, Network Power and Knowledge Flow from the Perspective of Enterprise Innovation Network Management
Authors: Sun Yaya , Wang Tao , Gu Xin
Published: May 2021

Efficiently development of enterprise innovation networks is inseparable from integrated innovation processes such as knowledge sharing and transfer. Knowledge flow is a core network activity that is highly dependent on the cultural and structural environment. As an informal governance mechanism, cooperative culture affects the stability and durability of relationship between members. Perfectly cooperative cultural mechanism is the key to promoting knowledge flow in innovation networks. The purpose of this paper is to explore whether and how cooperative culture and network power affect knowledge flow in innovation networks. This paper finds that cooperative culture, network power has a positive effect on knowledge flow, which was obtained by using SEM method based on 227 questionnaire survey samples of enterprises. Furthermore, this paper also uses fuzzy quantitative comparative analysis (fsQCA) to study how cooperative culture and network power work together on knowledge flow. This study finds out three paths that lead to high knowledge flow, which are composed of the elements of cooperative culture and network power. The three paths are knowledge reciprocity-oriented, cooperative culture-oriented and cultural knowledge fitoriented respectively. These findings are of great significance for promoting the management of innovation networks.
Test Method for Decision Planning of Autonomous Vehicles Based on DQN Algorithm
Authors: Chen Hong Yun , Li Yan Qiang , Zhang Zi Hui , Wang Yong
Published: May 2021

In February 2020, Beijing, China andCalifornia, USA respectively released road test reports of 2019 for autonomous vehicles. Beijing and California respectively represent the highest level of testing and application of autonomous vehicles in the two countries. This article will compare the test items, evaluation criteria and technical defects of each autonomous vehicle company in the road test reports of China and the United States, also analyze the existing problems, and propose an idea for the construction of a comprehensive test site for autonomous vehicles. This article aims to solve the prominently exposed problems in decision-making and planning in autonomous vehicles with DQN algorithm-base vehicle fleet, and to look forward to the future development trend of autonomous driving testing.
Research on Customer Loyalty of O2O Takeout Logistics Service
Authors: Mimi Shao , Yueyue Huang
Published: May 2021

With the wide-spread Internet, e-commerce has grown rapidly. It has prompted the traditional catering industry to form a novel “Internet plus catering” mode. In order to provide customers with costeffective products continuously, takeout platforms should focus more on high-quality consumer experience, so as to improve customer loyalty and occupy a larger market share. The paper attemps to prove that the customer loyalty can be improved by enhancing the quality of takeout O2O logistics services. Through analysis of the status quo of takeout O2O services and previous research conducted by other scholars, a comprehensive survey was conducted to collect basic data to constuct a measurement model of quality of O2O logistics services. The result of this study suggests that: three factors seem to have a rather significant impact on customer loyalty, which are the timeliness, convenience and empathy for logistics services (impact degree in ascending order). It is hoped that this research can provide some insight for the development of food delivery industry.
Continued increases in military and police spending can lead to economic collapse
Authors: Sajid Muhammad Jawad
Published: May 2021

Human defence expenditure has increased due to the need for permanent military and police forces, which has led to the creation of a perpetual fear industry. The so-called fear industry refers to the industry created due to real or perceived fear, without this fear, the industry cannot be created. Most defence economic studies (both military and police) focus on various empiric aspects such as opportunity costs, GDP growth, public expenditure and defence industry taxes. However, this study focuses on the development and explanation of the theory behind the creation and death of this preputial industry of fear. This study also presents the concept of social GDP and free GDP, which can help to present the long-term economic effects of the reduction or possible elimination of defence spending by national governments. Decreased defence spending generally has economic and social benefits for the general public. In the long run, rising costs of the defence industry (military and police spending, etc.) and other miscellaneous social issues can lead to civil unrest or possible civil wars, which can have a devastating impact on global economies in the long run. It is therefore in the interests of global economies to begin to reduce expenditure, to seek cheaper and more acceptable alternatives, and eventually to get rid of these fear-based expenditures.
Engineering Internal Control Analysis Based on AHP-FCE Taking Wind Power Enterprise as an Example
Authors: Xiaoxiao Lv , Zhengnan Hou , Ming Tang , Shengxian Zhuang
Published: May 2021

Wind power is a key development project. In recent years, the wind power industry has developed rapidly. The market needs enterprises with complete systems and higher work efficiency. Internal control is an important measure for the transparency and standardization of enterprise operations. Therefore, after implementing internal control on wind power companies, how to objectively evaluate the internal control construction of wind power companies has become a new research focus. This paper proposes a method to quantitatively evaluate the internal control of wind power enterprises. First, the internal control objectives are decomposed into multiple factor indicators, and then the internal control evaluation system of wind power enterprises is constructed, which is realized by the use of analytic hierarchy process (AHP) and fuzzy comprehensive evaluation (FCE). The calculation example shows that the quantitative evaluation method helps to find the deficiencies of the internal control of wind power enterprises, and provides a reference for the establishment and implementation of the system and the efficiency of business operation.
Research on Power Grid Infrastructure Investment Distribution Model Based on Entropy Weight Method
Authors: Wang Yun , Yaling Jian , Yang Jie , Tang Yiming , Zhou Ping , Chen Chao
Published: May 2021

With the development of the national economy, the scale of investment in power grid infrastructure has gradually expanded. The contradiction between the development of high-intensity investment, rigid growth in cost, slowing down of electricity growth, and difficulty in benefit growth has become increasingly prominent. The results show that the model can improve the scientificity and rationality of power grid infrastructure investment allocation under the background of operating constraints and capital constraints.
Management Ability, Innovation Input and Enterprise Performance
Authors: Yan Zhang
Published: May 2021

This paper studies the endogenous relationship between innovation investment and enterprise performance through the three-stage least square method, taking the companies listed on the Main board of A-shares in Shanghai and Shenzhen stock Exchanges from 2014 to 2018 as research samples, and explores whether the improvement of management ability can effectively promote the transformation of enterprise innovation investment into enterprise performance from the perspective of innovation. The research results show that there is a two-way influence between innovation input and enterprise performance. The innovation input can significantly promote the growth of enterprise performance, but its promotion effect is relatively lagged. The growth of performance may weaken the enterprise's innovation motivation and reduce the future innovation input. Management competence has a significant positive moderating effect on the relationship between innovation input and performance. This paper provides an important reference for balancing innovation and enterprise performance and improving the transformation efficiency of enterprise innovation investment to increase enterprise value.
Research on brand Positioning Validity in Xiaomi enterprise Management
Authors: Zhiwei Lu
Published: May 2021

With the development of market economy, fierce competition has penetrated into every aspect of the society. In the past, Chinese companies have gained a large market share by relying on the price advantage of low-priced products. However, in recent years, labor costs have been rising, environmental damage has become more serious, and independent innovation is very important in enterprise management. All these mean that what is important now is not to find ways to reduce the cost of products, but to find ways to optimize enterprise management strategy. Therefore, in the process of enterprise management, brand positioning is particularly important. First of all, on the basis of literature research, this paper puts forward two brand positioning measurement indexes, namely consistency and brand positioning performance: consistency is mainly used to test the expectations of the enterprise design image and it fits the customer image, and brand performance is mainly from the customer perspective to examine the effects of brand positioning, or used to measure the consumers' brand loyalty. Secondly, this paper selects Xiaomi as a case for empirical study, and conducts questionnaire distribution and data collection and analysis based on the case of xiaomi's enterprise management. Finally, this paper uses SPSS software to analyze the data collected to verify the consistency of brand positioning and brand positioning performance of Xiaomi in enterprise management, and also to verify the positive correlation between the two. The investigation of this paper finally confirms the validity of brand positioning of Xiaomi's enterprise management process, and also shows that the designed indicators are reasonable.
The Influence of High-tech Qualification Accreditation on Enterprise Innovation Performance Based on an Empirical Study Using PSM
Authors: Yibo Sun , Jiazheng Sun
Published: May 2021

In order to promote China's economy high-quality development, the country has continuously lowered the certification standards for high-tech enterprises. The existing research literature has not yet reached a clear conclusion about the impact of high-tech qualification certification on enterprise innovation performance. This paper uses the Shanghai and Shenzhen A-share listed companies from 2013 to 2018 as a research sample. Through the propensity score matching method, it is found that the implementation of the high-tech enterprise identification policy has an effect on the innovation performance of the enterprise, especially for strategic innovation represented by the number of non-invention patent applications. The sub-sample results show that the identification policy has a more obvious impact on the innovation performance of non-state-owned enterprises, young enterprises and larger enterprises. Finally, based on the results of the research, it is proposed to continuously improve the identification policy, guide enterprises to make substantial innovations, and implement hierarchical tax rates for different types of enterprises to help improve the identification policies for high-tech enterprises.
An improved YOLOv3-tiny method for fire detection in the construction industry
Authors: Li Jichao , Guo Shengyu , Kong Liulin , Tan Siqi , Yuan Yican
Published: May 2021

To prevent fire accidents on construction site and improve the accuracy of fire detection, an improved YOLOv3-tiny method (I-YOLOv3-tiny) is proposed in this paper. Although the YOLOv3-tiny has a fast detection speed and low equipment requirement, the accuracy is relatively low on fire detection. The improvement of the I-YOLOv3-tiny method is followed by three steps. Firstly, the feature extraction of fire images is enhanced by optimizing the network structure. Secondly, a multi-scale fusion is used to improve the detection effect of fire targets. Finally, the anchor boxes that are suitable for fire data sets are selected by k-means clustering. The results show that I-YOLOv3-tiny has an increased percentage of 4 on the mAP, the Recall rate has an increased percentage of 4, and AVG IOU has an increased percentage of 6. The proposed model meets the real-time performance of fire detection. This study is of theoretical and practical significance on fire safety management and accident prevention in the construction industry.
Évolution des paramètres pressiométriques d’un massif argileux non saturé soumis à des variations monotones et cycliques de la température
Authors: Rosin-Paumier Sandrine , Eslami Hossein , Abdallah Adel , Masrouri Farimah
Published: May 2021

Les récentes avancées technologiques dans le domaine des pompes à chaleurs ont permis de proposer des solutions nouvelles pour le chauffage et le refroidissement des ouvrages. Les géostructures énergétiques consistent à incorporer des échangeurs thermiques dans les éléments enterrés des ouvrages géotechniques. Cependant, l’échange de chaleur conduit à une évolution cyclique de la température du sol adjacent. Ainsi, de nombreuses questions se posent sur l’effet de ces variations de température sur les paramètres hydromécaniques des sols. Ces questions sont importantes puisque les géostructures énergétiques cumulent la fonction d’échangeur thermique et la fonction de portance ou de soutènement. Dans cette étude, quatre massifs de sol ont été compactés dans une cuve de 0,6 m de diamètre et 0,8 m de haut qui est thermo-régulée (1 à 40 °C). Le matériau testé est une argile (illite) compactée à sa teneur en eau optimale soit 31,3 % (essai Proctor normal), et à 90 % de sa masse volumique sèche maximale, soit 1,29 Mg/m3. Six essais mini-pressiométriques ont été réalisés dans chaque massif à différentes étapes des sollicitations thermiques appliquées. Les résultats montrent une diminution de la pression limite avec l’augmentation de la température. L’application de plusieurs cycles montre que le 1er cycle a un impact prépondérant par rapport aux cycles suivants en particulier, pour la pression de fluage qui tend vers une valeur d’équilibre. En revanche, la pression limite conserve sa dépendance à la température au-delà du 1er cycle.
Rapid non-contact visual measurement method for key dimensions of revolving workpieces
Authors: Gao Peipei , Liu Feng , Sun Xizhi , Wang Fang , Li Jiajun
Published: May 2021

Aimed at the rapid non-contact measurement problem of a revolving workpiece's radial and axial dimensions, a fast and high-precision visual inspection method has been presented in this paper. For the workpiece with large axial size, the proposed method established the measurement transformation chain using the object-image and object-object transformations, thus realizing the rapid axial dimensional measurements. For the workpiece with large radial size, this method determined the measurement transformation model based on two-dimensional target and measurement correspondence relationship, and further achieved rapid radial dimensional measurements. The experimental results have shown that the method is effective and can be applied to in situ dimensional measurement of revolving workpieces on high quality production lines.
Das hypoplastische Linksherzsyndrom
Authors: Lindemann-Wittke Dagmar
Published: May 2021

Um Kinder mit einem hypoplastischen Linksherzsyndrom nach der Geburt zu erkennen, sollten auch Hebammen, Pflegekräfte sowie ärztliches Personal in Geburtsabteilungen mit dem komplexen Herzfehler vertraut sein, denn nicht alle betroffenen Kinder werden pränatal erkannt.
Interdisziplinäre Aspekte der oralen Antikoagulation mit NOAKs bei Vorhofflimmern
Authors: Dürschmied Daniel , Goette Andreas , Hardt Roland , Kleinschnitz Christoph , Kämmerer Wolfgang , Lembens Christoph , Schmitt Wilhelm , Bode Christoph
Published: May 2021

Die Schlaganfallprophylaxe mit nicht von Vitamin K abhängigen oralen Antikoagulanzien (NOAKs) bei Patienten mit nichtvalvulärem Vorhofflimmern (nvVHF) hat heute einen festen Platz in der klinischen Routine. Die Definition des nvVHF umfasst die Abwesenheit einer mechanischen Herzklappe und ein nicht mit einer mittel- oder hochgradigen Mitralklappenstenose einhergehendes Vorhofflimmern. Das Management der oralen Antikoagulation (OAK) erfordert eine starke Interdisziplinarität. Nicht zuletzt aus diesem Grund sind in der Praxis immer wieder Unsicherheiten zu beobachten, die für den einzelnen Patienten weitreichende Folgen haben können. Deshalb hat sich ein Gremium aus Vertretern von Allgemeinmedizin, Geriatrie, Kardiologie, Nephrologie und Neurologie versammelt, um praxisrelevante Aspekte aus den verschiedenen Disziplinen zu identifizieren und gemeinsam praktische Handreichungen zu erarbeiten, die die Therapiesicherheit für die Patienten im Alltag verbessern sollen (Übersicht siehe Abb. 1).