bluuebunny/crossref_metadata_2025 huggingface dataset:
Pandemia e consequências na mobilidade urbana e emissão veicular
Authors: Haddad Helene Sabbag , Nicolosi Rodrigo , Ferreira Romulo Alves Rissardi , Carvalho Miranda Amanda , Tobal Berssaneti Fernando
Published: May 2022

Durante a pandemia, em consequência do período severo de bloqueios, que causou restrições de atividades por empresas e circulação de pessoas, houve mudanças radicais na mobilidade urbana, e consequente mudanças nos padrões de emissões de poluentes atmosféricos. O presente artigo tem como objetivo analisar a literatura existente sobre os níveis de poluição do ar relacionados com mobilidade e veículos, e a influência da pandemia, por meio da bibliometria. Em sua metodologia, as bases norteadoras da bibliometria foram:Web Of Science e Scopus, com o recorte temporal de publicações de 2020 a 2021, utilizando as palavras-chave: “pandemic" and "vehicles emission" and "*mobility*" and “quality”, chegou-se ao resultado inicial de 153 artigos, depois refinados para 97. Os resultados apresentados pelo software Voz Viewer (Vos) comprovaram que há correlação entre os autores mais citados com estas palavras-chave,  e apontou que estas publicações ocorrem em periódicos cuja temática seja meio ambiente e sustentabilidade, dentre os periódicos, o que mais se destacou com cerca de 55 publicações neste tema foi o “Science of the Total Environment”. Portanto este trabalho consolidou as abordagens encontradas na literatura em um único estudo que sirva de base para pesquisas futuras, além de observar como a comunidade científica de diversos países estiveram atentas e interessadas neste tema.
Uso dos jogos de empresas para treinamento de gestão de projetos em órgão público federal
Authors: De Lima Pinto Carreiro Eduardo , Maccari Emerson Antonio , Oliveira Murilo Alvarenga , Scafuto Isabel Cristina , Barros Nery André Luiz
Published: May 2022

O presente relato técnico tem como objetivo descrever a aplicação de um treinamento para a formação de profissionais em gestão de projetos de um Órgão Público Federal, dinamizada pelo jogo de empresas, cujo simulador organizacional (PMS-Sim) apresenta conhecimentos introdutórios alicerçados nos Guias de Conhecimento do PMBoK®. Desenvolveu-se um questionário com 27 perguntas, a fim de verificar a impressão dos participantes acerca das competências desenvolvidas pelo treinamento. Este questionário foi dividido em três dimensões (indivíduo, equipe e organização) com nove questões cada. Para análise dos resultados, foi utilizado o Alfa de Cronbach para confirmar se os respondentes tinham compreendido as questões, análises descritivas das médias de cada resposta para o desenvolvimento de radares indicativos de cada dimensão e Análise Multivariada de Covariância (MANCOVA) para compreender se havia diferenças entre as opiniões dos profissionais com e sem experiência na área de projetos. Como resultado, apresentou-se a descrição de um treinamento com uso do jogo de empresas PMS-Sim para a formação em gestão de projetos no setor público. Na impressão dos participantes, os resultados também indicaram que o treinamento desenvolveu competências para o gerenciamento de projetos individuais, em equipe e o organizacional.
DUAS PEÇAS POSSÍVEIS: TEATRO INFANTO-JUVENIL NA ESCOLA
Authors: Assis Catarina de Freitas Barbosa , Glória Darcy M. da , Araújo Lívia M. , Moraes Roberto Tadeu Pereira
Published: May 2022

São apresentadas duas peças de teatro para encenação por grupos amadores, tais como escolas ou centros comunitários. Enfatiza a função de divertir e não de ensinar que as duas peças tentam exercer, pois não usam a função moralista e didática comuns a alguns textos de teatro, e sugere que outros meios podem e devem ser usados para transmissão desses conceitos.
Training Mode of Mechanical Professional Degree Graduates Oriented to the Integration Between Industry and Education
Authors: Wang Zhaohui
Published: May 2022

The traditional talent training mode restricts the cultivation of multi-level, high-quality and innovative postgraduates. This paper analyzes the main problems existing in the cultivation of postgraduates majoring in mechanical engineering, and summarizes the characteristics of the cultivation of postgraduates majoring in the integration between industry and education. This paper puts forward the training mode of mechanical degree graduate students, such as the reconstruction of training system and mechanism design based on the deep integration of industry and education, the construction of curriculum teaching system based on The integration between industry and education and demand-oriented integration, the construction of practical teaching system based on The integration between industry and education and the improvement of innovation ability, and the construction of school enterprise joint evaluation mechanism based on comprehensive application orientation, It is of great significance to improve the teaching quality and innovative practice ability of mechanical degree postgraduates
An Exploration of Construction and Management Mode of Practice Teaching Bases in Local Application-Oriented Universities Based on the Purpose of Collaborative Education
Authors: Yang Yan , Wang Huayun
Published: May 2022

The integration of industry and education and collaborative education is an important way for application-oriented universities to achieve high-quality development and cultivate innovative talents. The off-campus practice teaching base is no longer just a place for students to practice and train. Universities and Businesses should expand cooperation fields, innovate cooperation modes and enrich cooperation contents on the basis of the original cooperation, jointly cultivate innovative and applied talents, and comprehensively improve the quality of talent training. Taking Shandong Management University as an example, this paper discusses the measures taken in optimizing the construction and management of practice teaching bases and the innovation of collaborative education mode, and summarizes the results of cooperation.
Implementation and Improvement of China's Customs Law under International Public Health Emergencies from the Perspective of COVID-19 Prevention and Control
Authors: Fan Zhizhi
Published: May 2022

This paper mainly from the actual point of view, from China's customs has taken measures, law enforcement problems encountered in the process and measures can be taken to solve the problem of three aspects of analysis. First of all, in terms of the measures already taken by the customs, China's customs from the exit quarantine, entry quarantine and help the domestic economic development three aspects, took strong measures to deal with the negative impact of the epidemic, the second is from the current problems of China's customs, the customs announcement of the existing problems, law enforcement efficiency and law enforcement scale of the problem analysis, the third is the existing problems put forward to solve the problems, this part from the enhancement of the sense of cooperation between officials and people, Improving the efficiency of law enforcement and increasing the basis of law enforcement in three aspects.
Human, Nature and Life Consciousness: Systematic Representation of the Source Domain of Chinese Political Metaphor
Authors: Chen Yulian
Published: May 2022

Metaphor is one of the prominent features of Chinese political discourse. Through the analysis of Chinese political metaphors in the three volumes of The Governance of China and The Belt and Road Initiative, this study finds that the source domain of Chinese political metaphors presents a systematic representation, which can be divided into three categories: human, nature and life consciousness. This representation is closely related to traditional Chinese culture, especially the embodied cognition, the idea of harmony between man and nature and the respect of life. Only when we truly understand the cultural information behind Chinese political metaphor, can we accurately grasp its meaning in the specific context, and promote the smooth intercultural communication and the spread of Chinese culture.
Is Prosocial Motivation Enough? Mission Drift of Employees in Chinese Nonprofits
Authors: Wu Zeling , Feng Yukun , Zhang Iris D. , Ni Na
Published: May 2022

Mission drift is a common phenomenon in non-profits. However, related studies on employees remain scant. In this study, we combine mission drift and employees' turnover intention literature, and investigate mission drift at employee level based on interviews in the context of six nonprofits in China. The results show that: (1) employees who choose to work in nonprofits have a strong sense of prosocial mission; (2) employees believe that organizations have some defects, which are inconsistent with their own image of prosocial mission; (3) employees’mission drift exists in nonprofits, which may lead to their high turnover intention. Taken together, we believe mission drift deserves our future research attention.
Research on Environmental Crime in China Based on Bibliometric Measurement
Authors: Wu Heqi
Published: May 2022

This paper takes 614 core papers on environmental crime research in the general library of China academic journals from 1992-2022, uses bibliometric analysis method and visualization technology, and analyzed and processed the authors, institutions and keywords of the sample data. It was found that: 1) major legislation has increased the number of environmental crime research; 2) the core author group of environmental crime research, but low degree of cooperation among authors, research institutions focus in universities and practical departments; 3) environmental crime research focuses on the ontology research and countermeasures of environmental crime, which is basically consistent with the domestic criminal law research paradigm.
The value of ecological civilization education in national parks
Authors: Wang Jitian
Published: May 2022

As an important barrier of ecological security, national parks are not only the key and priority areas of ecological civilization construction, but also important places for scientific research and environmental education with their rich natural resources and complete ecosystem. It plays an important role in protecting the integrity of ecological system and the authenticity of natural environment, changing individual ideas and improving individual ecological literacy, and is the fundamental guarantee for the achievement of ecological civilization construction. This paper analyzes the high ecological value, cultural value and spiritual value of ecological civilization education in national parks from shallow and deep aspects.
Research on the Improvement of Teachers’ Practical Teaching Ability in Local Newly-built Universities
Authors: Yang Yan
Published: May 2022

Under the background of the local newly-built universities transforming into application-oriented universities, teachers' practical teaching ability decides the quality of applied innovative talents cultivation, affects the school serving local economic and social development level, and thus improving college teachers' practical teaching ability is the key to the successful transformation and high quality development for the newly-built universities. This paper deeply analyzes the problems existing in the improvement of teachers' practical teaching ability and puts forward corresponding solutions.
Tele-medicine Legislation and Ethics Research of UK and Hong Kong
Authors: Chen Ziyan
Published: May 2022

This paper aims to concretely analyze the latest telemedicine legislation innovations and make a concrete comparison between Hong Kong and UK. The medicine information encryption, data security rules, block-chain technique innovation and 5G technology should be applied. The purpose of this paper is to analyze the advantages of the telemedicine mode compared with the traditional treatment mode and give suggestions for the future telemedicine industry development.
The origin, characteristics and Prospect of Metaverse
Authors: Qi Pengcheng , Chen Zidan
Published: May 2022

In 2021, the concept of Metaverse has gone viral. Decentralized virtual identity, immersive experience, unprecedented interactive function, mature economic system, arbitrary creation, continuous self-evolution and upgrading. Those are the six characteristics of the Metaverse. It shows great development potential and prospects in social, office, education, game and other fields. In the future, the Metaverse market can be prospered by improving the screening ability, clarifying the regulatory boundary, paying attention to value shaping and closely following the innovation of the times.
An Experimental Study of Wu Weiye's "Remote and Deep" in Chinese Opera
Authors: Wang Yuyan
Published: May 2022

During the transition period  of the Ming and Qing dynasties when the going gets tough, many marginalized scholars in an awkward situation chose to create opera to comfort their mourning for the former dynasty. This essay takes Wu Weiye and his play Mo Ling Chun as an example, and discusses the emotional sadness in the work and the subtle view of the literati on opera, in an attempt to show the embrace of literature in the context of objective historical conditions.
Innovation and Practice of Online and Offline Hybrid PAD and PBL Teaching Model
Authors: Li Binbin , Li Xiaochan
Published: May 2022

The overall P-PAD-L teaching system of "1 body, 2 wings, 3 steps and 4D feedback" has been innovated: 1 body means PBL and PAD integration, 2 wings are online and offline classrooms, 3 teaching steps include teacher’ presentation, students assimilation, discussion and dialogue, 4D feedback comes from learning process and results, self-evaluation and peer evaluation. In the past three years,the teaching team has followed the educational action research of "problem-plan- implementation-reflection" steps to refine the teaching system.The effectiveness of teaching innovation system has been successively reflected and confirmed in student development and curriculum construction deepening.
An Overview of the Study of Liu Yong in the Last Thirty Years
Authors: Wang Yuyan
Published: May 2022

Taking thirty years (1990-2020) as the scope, this paper conducts a brief overview and analysis of the scholarly studies on Liu Yong's life and Ci in Northern Song society, the discernment between elegance and vulgarity, and the causes of the tragedy in an attempt to restore a historically true and objective Liu Yong.
Aesthetic Education Curriculum Construction and Innovation In The New Engineering Education:An example of teaching an art appreciation aesthetics education course
Authors: Wang Lingyu , Li Yingchuan , Fang Mingzhu
Published: May 2022

The cultivation of creative ability is the core element of the cultivation of new engineering talents, and the cultivation of creative and aesthetic ability should not be missing at the same time as the cultivation of innovative technical ability. This paper takes the art appreciation course as an example to build and innovate the construction of aesthetic education courses in the new engineering education:based on aesthetics, the traditional classical aesthetic cases are used to establish a multidisciplinary integration of creative and aesthetic knowledge system; through the design of Innovative aesthetic case , the students' innovative aesthetic thinking ability is cultivated, and finally the innovative aesthetic quality of new engineering talents is improved, completing the sublimation from aesthetic education to innovative aesthetic education.
The Hypothesis of "Civilized People": Connotation and Reflection
Authors: Zhao Longlong
Published: May 2022

To put it simply, the hypothesis of "civilized people" mainly refers to accounting for individuals' behavioural motivations with the help of civilization. Specifically, in the process of "civilization" and "humanization", cultural elements are the primary incentive of personal behaviours. Through comparative analysis, this paper points out the main shortcomings of the unitary "civilized people" and explains in detail the fundamental proposition of the dual "civilized people". Finally, relying on the "interpretation" and "transformation" functions of Marxist philosophy, this paper makes a profound reflection on the content of the "civilized people" and its future development direction.
Translation of Terms in Chinese Philosophical Classics Based on Eco-translatology: A Case Study of Wang Rongpei’s English Version of Zhuangzi
Authors: Li Zhiping
Published: May 2022

In Chinese philosophical classics there are plentiful terms constructing a whole system of ancient Chinese philosophical thoughts. These terms are regarded as an important content of translating Chinese philosophical classics. In the meantime, they are also considered as a great difficulty in the translation process, since many of them are featured by semantic vagueness, multiplicity and even vancancy resulting from time distance, linguistic evolution and cultural differences. The concept of three-dimensional transformation, a key notion of Eco-translatology, provides the translator with enlightening significance in handling these recondite terms. By analysis from the perspective of three-dimensional transformation, we can find that when translating terms in Zhuangzi, Wang Rongpei selected adaptively some translation methods, especially the method of adding footnotes, in order to reach a satisfactory balance among three dimensions of language, culture and communication. By the case study on Wang Rongpei’s English translation of Zhuangzi, the paper aims to explore appropriate strategies and methods for translating terms in Chinese philosophical classics.
Arctic Governance from the Perspective of “Self-Governance” Theory
Authors: Fang Ruian
Published: May 2022

The current governance model of the Arctic accords with the theoretical characteristics of Ostrom’s “self-governance” theory to a large extent, such as the multi-centralized governance pattern of the Arctic with self-governance factors, the size of the Arctic Council and the nature of high-level forum. The current difficulties of the Arctic Council’s self-governance are mainly manifested in the unstable external political environment, difficulties in institutional supply and lack of credible commitments. The breakthrough of the dilemma of self-governance and the realization of institutional change can be started from the “nested enterprise” model to explore the multi-level arctic governance pattern.
The Study on Mental Health Based on Survey of 800 College Students
Authors: Hu Haixiang , Li Ruiguang , Yu Ceen , Xu Ziyu , Xu Kun , Xu Piao
Published: May 2022

China is the world's most populous country with a population of more than 1.4 billion, and 9.5% of them are college students. Obviously, college students are not only the main group who have mastered knowledge, but also the main force for the future development of the country. The psychological problems of college students not only determine the health of students themselves, but also are closely related to the stability and prosperity of the society. The paper conducts an online survey of 800 college students' mental health problems, and makes attribution analysis on students' perception, feeling, imagination memory, thinking activities activities as well as other psychological problems, and then, puts forward corresponding guidance measures.
On the application of native cultural resources in English education of universities in ethnic minority areas——Taking Enshi Tujia and Miao Autonomous Prefecture as an example
Authors: Long Jianghua
Published: May 2022

Chinese universities have long given priority to the input of Western culture in English education while the native culture, namely the Chinese culture, has been seriously ignored. As a matter of fact, the model of English education based on the target culture can hardly meet the needs of the current situation of using English. As an international language communication tool, English should be fully integrated with the local pragmatic environment and used to serve the local economy. The acquisition of native culture can not only reduce learners’ anxiety and improve their learning efficiency, but also facilitate learners’ better understanding of Chinese and western cultures and improve their intercultural communicative competence as well. The following strategies can be adopted to apply the local cultural resources of Enshi Tujia and Miao Autonomous Prefecture to English education in its ethnic colleges and universities: 1) to foster the educational concept of attaching equal importance to Western culture and native culture; 2) To take local culture education an important part of college English curriculum and instructional design; 3) to build a Chinese-English parallel Corpus of local culture resources of Enshi; 4) to establish a practice base of local culture education
Research on the Impact of Institutional Quality on Enterprise Innovation Quality from the Perspective of Heterogeneity of Innovation Motivation
Authors: Zhang Pan
Published: May 2022

From the perspective of heterogeneity of firms’ innovation motivation, we analyze the internal mechanism between marketization institution environment and firms’ innovation motivations, using the data of China’s manufacturing industry listed firms from 2005 to 2019. We find that, the marketization institutional reform can strengthen the vertical innovation motivation and weaken the horizontal innovation motivation, which means that there are “institutional dividend effects” in the firms’ innovation behaviors. After dividing the firms into different groups by ownership, region and high-tech intensity, we find that the “institutional dividend effects” mainly focus in the non-state-owned group, middle area and west area group, and both in the high-tech and non-high-tech group. Our findings can provide some evidences for the policy design and firms’ strategy formulation.
The Effect of Hearing on Consumer Emotion Experience；The Moderator of Vestibular Sensations
Authors: Huang Jianhua , Yieh Kaili
Published: May 2022

The field of consumer behavior has always been the goal of marketing concern, a breakthrough in the study, a sensory field in recent years beyond the traditional five senses and the vestibular sensory systems (called the sixth kind of the senses), including body posture and balance, previous research on taste and vestibular sensory interaction affect the major findings, This study will explore the interplay between auditory and vestibular senses and expand the scope of sensory marketing. Join consumers’ emotional experience as strain, the study of the interaction between the emotion to provide a reference for future retailers, and vestibular sensory systems in the field of marketing has not been sufficient research, this study through three experiments results show that although the court did not feel a significant interference influence on emotional experience, hearing from them, Vestibular sensory sitting position (relative standing) have higher positive influence to customers' emotional experience, and contains the auditory sense of music presents the fast rhythm, music, the greater the loudness, rock and roll style for customers have higher emotional experience positive emotions, these findings extend the sensory marketing as well as the interactions of the vestibular sense of hearing, To provide retailers, catering and other industries in the future design service area and rest area environment practical significance.
Discussion on the New Model of Smart Tourism Development under the Background of Big Data
Authors: Yu Haiyan
Published: May 2022

With the rapid development of mobile Internet, smart tourism is developing day by day, effectively promoting the improvement of tourism services and comprehensive management. Then at this stage, the development of China's smart tourism is still in its infancy, and there are still problems such as uncoordinated resources and incomplete services. In order to promote the high-quality development of smart tourism industry and promote the steady improvement of economic benefits, this paper summarizes the basic theories of big data and smart tourism based on the research of predecessors and scholars on smart tourism. Then analyze the current problems in the development of smart tourism, and finally from the aspects of strengthening resource integration, strengthening information supervision and management, research and development of smart tourism and new technologies, put forward a new model construction strategy of smart tourism development in the context of big data.
How to solve the Involution problem in workplace?An investment model based on the SEM structural equation might be an feasible antidote
Authors: Xue Jicong
Published: May 2022

The involution problem exert huge pressure to not only Z Era youth but also employees older than them. Previous research are mainly concentrated on discussing the negative effects of the issue rather than providing a solution.Thus,this paper will set a SEM model to act as a investment model for supervisors.
Research on maintenance and strengthening strategies of concrete structures exposed to chloride environment base on state index
Authors: Zhang Lingling , Jiang Peixian , Wang Haichao
Published: May 2022

To explore the preventive maintenance and necessity strengthening of service concrete structures suffering from chloride attack, two parameters, the crack width and corrosion depth of reinforcement, are selected as the status indicators throughout the degradation process of cracked concrete structures. Then, based on state index, the maintenance decision-making model of concrete structure in chloride environment is established. The RCM test is adopted to evaluate the effectiveness of several preventive maintenance measures conducted on the cracked concrete element and it is found that the microorganism induced calcium precipitation (MICP for short) sealing method has better redeeming effect. The relevant results can provide certain references for the research on the maintenance and strengthening decision of service concrete structures.
Continuously and automatically selecting measurement for production wells with high production and gas-oil ratio
Authors: Zhao Keke , Fang Kun , Xing Ming , Xia Xue , Jiao Shenghua , Sun Yue
Published: May 2022

To meet the requirements of large-scale and fast production, conventional metering technology will fail in the production well with high production and gas-oil ratio. In this paper, we propose a high degree of automation, unattended, continuously and automatically selecting measurement system, which is mainly consisted of automatic selecting system, continuous metering system, and Remote Terminal Unit(RTU) control system. This continuously automatic metering system has many advantages, such as wide measurement range, high automation, short inversion time, and high measurement accuracy. It has been successfully applied in an oil field metering station in the Middle East, and has achieved good performance. We expect that its extensive promotion will benefit the digitization and automation of future oilfield production.
Electrochemical corrosion behavior of Ni-P, AlCrN and Ni-P-AlCrN multilayer composite coatings used on grounding grids
Authors: Luo Chuansheng
Published: May 2022

In this work, single NiP alloy, we use cathodic arc ion plating and electroless plating, AlCrN and NiP-AlCrN multilayer composite coatings were sedimented from the teeth outwards Q235 carbon steel. It is surface appearances of the coating that were inspected by using scanning electron microscope method (SEM) and the crystal structure, which was researched by the diffraction of X-ray (XRD). The electrochemical corrosion behaviors were evaluated by electrochemical polarization tests with electrochemical impedance spectrum (EIS). The results of EIS displayed that the impedance increased in the order Q235＜AlCrN coating＜NiP alloy＜NiP-AlCrN composite coating. The corroded surfaces of coated samples were covered by some pitting while the surface of Q235 was totally destroyed.
Recent Advances on Video Super Resolution
Authors: Liu Zirui
Published: May 2022

Super-resolution(SR) reconstruction is a technique which constructs high-resolution(HR) images/videos from low- resolution(LR) images/videos. Recently super resolution tech- niques has been prospering rapidly and being applied in various areas. In this article we look through recent works which made great contributions to SR, mainly on VSR. We will compare different works’ effectiveness and their unique structures, dis- cussing their pros and cons, trying to ﬁnd out the reasons why some SR approaches perform signiﬁcantly better than the others and how they can be applied to help further improve the best performance we can achieve.
Study on Improving Sewing Damage of Cuprammonium Fabric
Authors: Jia Xiaoshi , Liu Xiaohan , Cui Lina
Published: May 2022

Cuprammonium fibers are usually used to prepare high-grade silk fabrics as its thin, soft, and suitable luster characters. Because of its smoothy surface of one single filament, which made the coefficient friction is lower than other common fibers, like cotton, hemp. The cuprammonium filament fabrics are apt to be punctured during the manufacturing processes of garment. Which damages the surface luster of the fabrics and seriously affects the quality of the finished garment. A method of adding a double-sided fusible interlining to the middle of two layers cuprammonium fabric to enhance the cohesion force and improve the suture damage of the fabric is introduced in this manuscript. A sewing damage measurement system is set up to measure the improving effect. Sample with or without treated under different circumstances the effects of sewing damage are discussed. Fixing the needle stitch length as 2.0 mm, the effect of the wider adhesive interlining on improving the sewing damage is better. And the width of adhesive interlining is 1.0 cm, the longer stitch length is better. An excellent improvement is found to improve the stitching damage of this type of fabric, thereby improving the quality of the garment.
Experimental Study on Compressive Performance of CHS T-Joints Filled with High-Water Rapid-Setting Materials
Authors: Xia Junwu , Wang Xiaoming , Zhang Binbin
Published: May 2022

In order to study the compressive performance of the CHS joints filled with high-water rapid-setting materials, the comparative test of the branch axial compression of three T-joint specimens of circular hollow steel (CHS) pipes, chord filled with concrete and chord filled with high-water rapid-setting materials were carried out. Differences in the failure mode, stress-strain distribution, ultimate bearing capacity and initial stiffness of the three joints were comprehensively compared. The test results show that the filling of the chord with different materials leads to different failure modes. Filling concrete can significantly improve the bearing capacity of the joint, but it will reduce the ductility of the joint; the failure mode of the filled with high-water rapid-setting materials is similar to that of the CHS T-joint. The joint show good ductility during the stress process, and at the same time, the ultimate bearing capacity is appropriately increased compared with the CHS T-joint.
The number of 8n+1 primes compare with 8n-1 primes
Authors: Zhou Mi
Published: May 2022

There is a phenomenon in mathematics: there is a phenomenon that before a natural number K, primes of the form 4n+1 do not appear more frequently than 4n-1 primes; Beyond k, between k and k+k', the above phenomenon is reversed, the frequency of 4n+1 primes is not less than 4n-1 primes; After exceeding k+k', between k+k 'and k+k'+k'', it is reversed again ...... The J.E. Littlewood proved the first stage of the phenomenon: primes of the form 4n+1 appear no more frequently than 4n-1 primes before a natural number k. In this paper used a more easy method and directly prove the phenomenon very shortly , provides a theoretical proof for this description.This method is more easy directly and elementary than Littlewood’,and It can help people understand this phenomenon better, and at the same time, it provides a good example for the optimization of number theory research methods and the use of some elementary methods to study mathematical problems. At the same time, there is a generalization conjecture: before a natural number K, which of 8n+1 and 8N-1 primes appear more frequently? The conjecture remains unsolved. Littlewood proved the occurrence frequency theorem of 4n+1 primes and 4N-1 primes, and this paper also gave the proof, the method is different from Littlewood, but he was the first; However, for 8n+1 primes compare with 8n-1 primes, we prove for the first time that the result is same as 4n+1 primes compare with 4n-1 primes.
Accident type analysis and consequence simulation of LNG terminals equipment and facilities
Authors: Zeng Yamei , Zeng Chunlei , Chen Zhijun , Gao Yuan , Fan Hong
Published: May 2022

A new round of energy change, energy clean and low carbon development become an inevitable trend. In the adjustment of energy structure, natural gas becomes the strongest growth carrier and LNG reserve peak regulation is of great significance. Building liquefied natural gas receiving center to secure domestic natural gas supply has become the main target, task and key work. Through the simulation of various equipment and facilities in the LNG terminal under different leakage scenarios, the accident scenarios are selected according to the protection distance criteria, the simulation of steam diffusion, pool fire, jet fire and explosion is carried out, and the influence range of consequences is obtained. The thesis provides a theoretical basis for the quantitative risk assessment for LNG terminal accident and the prediction of emergencies, having positive guiding significance for risk management and emergency disposal of new or operating LNG terminals.
Study on Calculation of Minimum Thickness of Sample in Thermal Conductivity Measurement
Authors: Zhang Debin , Cheng Xiaofang , Wang Peiqi
Published: May 2022

It is found that the true thermal conductivity can be measured only when material reaches a certain minimum thickness, within which the thermal conductivity varies with thickness. Based on the derivative of Fourier's law, it is pointed out that the phenomenon of thermal conductivity varying with thickness is caused by the existence of second derivative of temperature. Both of the FTC (function of thermal conductivity) and the calculation formula of MMT (minimum measured thickness) are established. For materials of GFRP (glass fiber reinforced plastic), neoprene and silicone, their R-squared of FTC are respectively 0.9995, 0.9668 and 0.9976, and their MMTs are 5.2287 mm, 4.7034 mm and 12.7532 mm, respectively. What’s more, their interfacial thermal conductivities are different, which reveals that thermal conductivity of material is a numerical field.
Determination of the total composition in gallic residue
Authors: Tian Shuge , Jiang Xiangdong
Published: May 2022

n this study, ten batches of gallic residue were used as raw materials. The contents of total protein, total polyphenol and total C were determined by Coomassie bright blue method, folin-phenol method and potassium dichromate oxidation method respectively, and the methodology was investigated. The results showed that gallic residue contained more protein, polyphenols and sugar. There were significant differences in total protein and total polyphenol content between different batches, while the difference in total C content was small. The experimental method was simple, quick and convenient.
Denitrification performance and microbial communities of solid-phase denitrifying reactors using novel composite
Authors: Liang Baorui , Zhu Tong , Kang Fei , Wang Yao , Yao Sai
Published: May 2022

This study explored the denitrification performance of solid-phase denitrification reactors packed with elemental sulfur/wheat straw/shell powder composites to treat nitrate-contaminated wastewater under different conditions. The sulfur-based autotrophic denitrification integrated natural-carbon-source (NCS)-based heterotrophic denitrification system was formed (SND). The fast start-up and intensified nitrogen removal performance were obtained in SND systems. The optimum denitrification performance was achieved by the SND15 reactor, with a maximum denitrification rate of 530 mg N·L-1·d-1 over 180 days operation. The co-existence of autotrophs and heterotrophs were observed in all reactors, this may contribute to better control of nitrogen in SND system. The outcomes provide a potential strategy of cost reduction to improve nitrogen removal of wastewater treatment plants (WWTPs) effluent.
Density cutting volume fracturing technology for horizontal well in ultra-low permeability reservoir in Yuan284 area
Authors: He Shanbin , Ce Wang , Zhengpan Cui , Fafeng Xue , Ping Zheng
Published: May 2022

The ultra-low permeability reservoir in Huaqing oilfield presents the characteristics of obvious non Darcy seepage, difficult matrix displacement, channeling of injected water along the waterflooding-induced fracture, and low production of single well in horizontal well development. Conventional water injection development is difficult to adapt to the current economic development. It is urgent to explore the effective development mode of horizontal well in ultra-low permeability reservoir, that is, to transform water-flooding development mode. Based on the mechanism of imbibition oil recovery, through indoor numerical simulation and field test, this paper innovatively puts forward large-scale volume fracturing of horizontal wells, and establishes a new development model of "makeup pressure tightness production" integrating "comprehensive energy supplement, old fracture plugging, synchronous transformation and volume fracturing" for the first time, which breaks through the traditional water drive characteristics and is successfully applied to yuan284 block of ultra-low permeability reservoir in Huaqing oilfield. Through the three-dimensional transformation of the reservoir, this model increases the complexity of fractures, realizes the transformation of seepage from linear flow to complex fracture network, establishes the development mode of imbibition displacement + differential pressure mass transfer, changes from well controlled reserves relying on water drive to fracture controlled reserves relying on seepage, and finally greatly improves the production and recovery of single wells. It is concluded that changing the water injection development mode provides new ideas and technical support for the development of horizontal wells in other similar ultra-low permeability reservoirs.
Heavy metals distribution and accumulation characteristics of 16 species plants on ecological floating-bed
Authors: Jia Chengxia , Yang Mu , Qu Jiangqi , Liu Pan , Xin Zhiming , Zhang Qingjing
Published: May 2022

Distribution and accumulation characteristics of copper (Cu), zinc (Zn), mercury (Hg), and lead (Pb) in the aerial and underground parts of 16 species of plants on ecological floating-bed were studied in the present study, and they showed significant differences. Most translocation factors for Cu, Zn, Hg, and Pb were smaller than 1. Coleus blumei had a considerable absorption and accumulation effect on Zn, Hg, and Pb; Hylotelephium erythrostictum had a good absorption and accumulation effect on Zn and Hg. Arundo donax var. versicolor, Lythrum salicaria, and Iris pseudacorus which had remarkable absolute accumulation in the aerial part due to their massive biomass, and were expected to have a promising prospect in applying floating-bed technology.
Test and analysis of temperature field of asphalt pavement heated by asphalt pavement maintenance equipment
Authors: Tang Dan , Ji Chongming , Li Guowei , Yuan Tianlong , Liu Xiaoti
Published: May 2022

In the construction of asphalt pavement recycling technology,   hot air circulating type heating method is one of the more widely used methods. Therefore, the research on the heating effect of this method in mobile asphalt pavement maintenance equipment is of great significance to improve the heat utilization rate of the equipment and optimize the hot air system structure of the equipment. This paper takes an area of the heating wall as the research object, and uses the contact temperature measuring method to test the heating effect in different areas and depths.The results show that there is almost no temperature change after the effective depth of hot air heating for asphalt pavement heating is 30mm and 50mm, and the temperature measuring method by indirectly monitoring smoke and air temperature to heat asphalt pavement is not very accurate, so a more direct and accurate contact temperature measuring method can be explored.
Molecular Dynamics Simulation on the Corrosion Inhibition Mechanism of Octadecylamine Inhibitor Film
Authors: Li Chao , Huang Junlin , Zhou Keyi , Xu Qinglan
Published: May 2022

Octadecylamine (ODA), a well-known film-forming amine, recently finds increasing application in nuclear pressurized water reactors to protect carbon steel components in the secondary circuit against corrosion. To clarify the inhibition mechanism, molecular dynamics simulations were employed to study the diffusion characteristics of three commonly encountered species, H2O, O2, and Cl-, in the formed inhibitor film. The simulation results revealed that the formed film mitigates corrosion by effectively impeding the diffusion of corrosion species in the film. For various species, the film exhibits markedly different inhibition abilities.
On Network Engergy of Random Graphs
Authors: Liu Shengjiu , Ou Minghui
Published: May 2022

Due to the changes of the times, there have been some problems in the use of teaching buildings in the old campuses of many colleges and universities. The Department of Architecture and Regulation of Wuhan University of Technology is a typical case. The purpose of this paper is to investigate the current situation of the building planning department, integrate the existing problems of the building, and on this basis, use the principles and methods of architectural planning to put forward suggestions for the reconstruction and expansion of the department. It is hoped that this research can point out the direction for the reconstruction and expansion of old teaching buildings to a certain extent, and provide scientific and reasonable reconstruction measures.
Carta Editorial 16
Authors:   Instituto Politécnico Nacional, Escudero Castro Héctor César
Published: May 2022

El patrimonio urbano Arquitectónico desde finales del siglo XIX hasta el presente, contiene un cúmulo de ejemplos urbano arquitectónicos, con unas características especiales que se identifican localmente, su presencia es micro regional, lo que actúa en contra del reconocimiento que pudiera tenerse de ellos, por lo que y desde esa condición, se hace muy necesario su estudio, presentación y análisis de este patrimonio. Es por eso que en este número de la revista Gremium se presentan trabajos desde diversas posturas epistemológicas del tema.
La arquitectura neogótica y su inserción en el patrimonio cultural mexicano
Authors:   Universidad Nacional Autónoma de México, Pantoja Hernández Samantha , Rosas López Guillermina ,   Universidad Nacional Autónoma de México, Monroy Ortiz Rafael ,   Universidad Nacional Autónoma de México
Published: May 2022

Este trabajo de investigación aborda el tema de la arquitectura neogótica en México desde una perspectiva patrimonial. La situación física, urbana y social de los inmuebles de esta tipología arquitectónica presenta una complejidad propia de su particular desarrollo, lo cual dificulta su adecuada protección y clasificación dentro de las políticas de conservación nacionales. Esto lleva a una multiplicidad de estados de conservación, que van desde inmuebles de culminación reciente hasta un deterioro notorio. El presente artículo tiene como propósito valorizar la arquitectura neogótica como patrimonio, a través del análisis al proceso de transculturación en el entorno mexicano, con la finalidad de contribuir a su conservación. Se parte del análisis del contexto de su introducción de Europa a México desde el año 1850, extendiéndose hasta el 2019 al tratar los ejemplos puntuales tanto en la Ciudad de México (CDMX) como en el estado de Guanajuato (Gto). De esta manera, se llega a la conclusión de que esta arquitectura forma parte del patrimonio del país debido tanto a sus características históricas como a su adaptación a las condiciones del territorio y la sociedad mexicana, y su consecuente apropiación por parte de ésta.
La experiencia del patrimonio arquitectónico maya y su influencia en la Arquitectura
Authors:   Instituto Tecnológico Autónomo de México, Mansur Garda Juan Carlos
Published: May 2022

El presente artículo busca despertar la sensibilización acerca del valor de preservar el patrimonio prehispánico maya para el desarrollo del arte. Para ello, reflexiona sobre cómo la experiencia y el lenguaje de la arquitectura prehispánica maya influyeron en arquitectos internacionales de la talla de Frank Lloyd Wright y Jorn Utzon.
Virtual Fatigue Life Prediction of Back Strip Butt Weld Joint under Bending and Torque Load Conditions
Authors: GOPALAN Venkatachalam , NARAYANASWAMY Hitesh Byatarayanapura , DESHMUKH Atul.R , NATARAJAN Senthilnathan , MUNUSAMY Achuthan , SUBRAMANIAN Jeyanthi , CHINNAYAN Pandivelan
Published: May 2022

The welding components used in automobile and aerospace industries are subjected to cyclic loading during field utilization. Understanding the behavior of the weld joints under fatigue loading is essential for designing components for optimum performance. This paper presents the study of virtual fatigue life prediction of back strip butt weld joint under bending and torque load conditions by varying weld joint parameters such as plate thickness, root gap and load. Virtual experiments are carried out on all samples by using finite element analysis (FEA) as per the concept of the design of experiment (DOE) approach. The response surface methodology, one of the DOE approaches, is used to obtain the different weld joint parameter combinations. Static structural analysis is performed to obtain the stress distribution in the weld model. Fatigue life is calculated by using the “E” Class S-N curve. The analysis of variance (ANOVA) approach is exploited to evaluate the influence of weld parameters of plate thickness, root gap and load on fatigue life.
O perfil do consumidor de um mercado de varejo da Agricultura Familiar
Authors: Lunkes Bruna , Balk Brandão Janaína , Dorr Andrea Cristina
Published: May 2022

Este artigo busca identificar o perfil socioeconômico e os comportamentos de consumidores de  um mercado de varejo da agricultura familiar. Esta pesquisa foi realizada em Santa Maria, Rio Grande do Sul, Brasil, e é classificada como exploratória/descritiva, compreendendo análise de dados secundários, aplicação de questionários e pesquisa bibliográfica. Os questionários foram direcionados para 68 consumidores do varejo de uma Cooperativa de Agricultores Familiares no ano de 2021. Foram identificados três perfis de públicos distintos, cada qual com suas características, os quais foram intitulados como jovens, adultos e idosos. O maior grau de satisfação foi no item “atendimento” e a menor média foi do quesito “preço”. A partir do teste de correlação de variáveis através do coeficiente de correlação de Spearman, constatou-se que as relações mais fortes se estabeleceram entre “preço” e “qualidade” (ρ=0,418**), entre o “consumo de lanches e fast food” e a relevância atribuída à “produtos da agricultura familiar” (ρ=-0,455**) e entre a “idade” e “há quanto tempo frequentam o mercado de varejo” (ρ=,658**).