风机偏心对空冷梁式桥架振动实验研究 by 郭铁能, 孟令军, 白春生, 华旭

“…The vibration problem of air-cooling fan bridge has been troubling the north thermal power plant.Excessive vibration amplitude causes the damage of fan,motor,reducer and other equipment,and affects the stability and economic benefit of power plant operation.In this paper,the vibration speed of the air-cooling fan exceeded the standard as the research object,and the data acquisition instrument and acceleration sensor were used to test the vibration of the air cooling fan bridge in the power plant of xiaoyi in Shanxi Province.According to the frequency characteristics generated by these incentives,the main influence factors of the vibration of the fan bridge caused by the original fan blades were explored.By analyzing the vibration signal,the main influencing factors of the vibration of fan bridge are explored according to the frequency characteristics.The test results show that the excessive vibration of the bridge is caused by the interference force caused by the fan eccentric mass.During the operation of the fan,the phase of the sensor at the middle of the bridge alternates positively and negatively,and the fan shaft produces a sway,which is inconsistent with the expected horizontal vibration of the bridge.In order to verify the rationality of the above analysis,the finite element analysis of the bridge frame was carried out,and the results are consistent with the above conclusions.Through the forced vibration test and hammer test of the fan bridge,it is found that the maximum frequency value of the vibration of the fan bridge caused by eccentric mass is far away from the natural vibration frequency of the fan bridge,and will not cause the resonance phenomenon of the fan bridge.Therefore,the vibration of the fan bridge caused by eccentric mass is only related to the static stiffness of the fan bridge.The test results will provide a basis for the design of beam bridge and the avoidance of vibration caused by fan eccentricity.…”
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De la ruche-tronc à la ruche à cadres : ethnoécologie historique de l’apiculture en Cévennes by Ameline Lehébel-Péron, Daniel Travier, Alain Renaux, Edmond Dounias, Bertrand Schatz

“…By combining the analysis of archival documents, scientific literature and personal testimonies from elderly Cevennes dwellers, this dive into history has allowed us to reconstitute the major episodes of beekeeping in Cevennes, by considering the modifications of chosen beehive models and bee landraces, as well as the valorization of beehive products following the evolving social and economic circumstances. Most salient features, such as the first evidence of the use of log hives in the early 17th century, were thus time-stamped and retrospectively set into context. …”
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The need to minimize personnel resistance to innovative changes in the management system of a high-technological enterprise by N. N. Trofimova

“…The use of an integrated author’s approach, based on the methods of scientific generalization, comparative analysis, systemic and situational approach, made it possible to establish the main consequences of the resistance of the personnel of hightech enterprises to socio-economic, organizational, managerial and technological innovations, taking into account their influence on the formation of the innovative potential of the organization. …”
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Research on the Application of Deep Learning Technology Oriented to the Construction and Innovation of Smart City Image Cognition by Dan Shi, Lixin Song

“…It has problems such as high cost, low update frequency, and limited data coverage, which cannot meet the needs of quantitative research on smart cities and urban economic development in the information age. With the advent of the era of big data and the development of Internet technology, there are more and more quantitative research results on smart city image cognition with the help of big data and deep learning technology. …”
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A Two-Layer Network Dynamic Congestion Pricing Based on Macroscopic Fundamental Diagram by Bangyang Wei, Daniel(Jian) Sun

“…Consequently, the proposed dynamic toll scheme is believed to be effective from both traffic and economic points of view.…”
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Assessment of Farmers\' Attitudes towards Water Scarcity Challenge and Its Adaptation Strategies in Villages of Bahar County (Hamadan Province, Iran) by Hasan Yavarian, Hamid Jalalian, Asghar Tahmasebi

“…The agricultural sector as the most important economic sector in the rural areas is directly affected by the shortage of water resources. …”
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The Fight against the Forced Labor and the Human Trafficking in Central Asia by L. Yu. Gusev

“…It is noted that this problem has emerged since the early 90s, when these countries got the independence, due to the difficult economic situation, activity of extremist organizations. …”
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SOCIAL AND PEDAGOGICAL FORECASTING IN THE PROCESS OF CHILDREN’S SOCIALIZATION by Antonina L. Leutina

“…An increase in the importance of prediction in pedagogic activity is related to modern postindustrial economic trends which are becoming oriented primarily toward an individual and his/her personal abilities as a basic manufacturing resource. …”
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ELECTRONIC BANKING AND PERFORMANCE OF BANKING SECTOR IN NIGERIA by Kayode David KOLAWOLE

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Does Brand Attitude Complement Influencer Credibility in Shaping Purchase Intention of Indian GenZ Consumers? [version 3; peer review: 2 approved] by Varalakshmi Alapati, Pranav Vilas Chavare, Smitha Nayak, Ramona Birau

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Significance of the modular approach for independent work of students when studying grammar of a foreign language at non-language university by Yuliya S. Elagina, Kseniya S. Oparina

“…In recent decades, through the introduction of a degree structure in higher education, Russia is highly integrated into the world socio-economic, information, educational and cultural space.Increased interaction with foreign partners implies that young professionals have sufficiently high level of knowledge of foreign languages. …”
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Cultural Moduses of Students and Their Influence on the Formation of Life Plans by M. A. Golovchin

“…The most common are carriers of “intermediate” modus, which brings optimism regarding the interaction of youth culture and social orders (institutions) formed by economic institutions. At the same time, it was revealed that the modes have different effects on the plans of the respondents. …”
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Investment climate assessment standards’ impact on the gross regional product growth of the Russian Federation subjects by L. I. Sergeyev, A. V. Samsonov

“…The average values’ statistically significant deviation of the GRP dynamics in 11 pilot regions of the Russian Federation and other subjects of the Russian Federation as an introduction result of regional investment standards developed by the Agency for Strategic Initiatives for the Promotion of New Projects (ANO “ASI”) together with the Ministry of Economic Development of the Russian Federation has been summarized. …”
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Evolution of U.S. Policy Approaches to Ensuring Cybersecurity and Defense of Critical Information Infrastructure by M. V. Smekalova

“…Rapid development of the Internet technologies has brought both unprecedented opportunities for economic development and a number of dangers for international community. …”
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Nursing of a case of upper extremity edema treated with Sanse prescription (三色方治疗肢端水肿1例护理体会) by ZHANG Sijia (张思佳), MENG Jia (孟佳)

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RUSSIA'S STRATEGIC DETERRENCE AND DEFENSE AGAINST POTENTIAL MEANS AND METHODS OF STRATEGIC ATTACK by A. I. Podberezkin, A. V. Zhukov

“…Finally, the authors believe that the development of the domestic military-industrial complex directly depends on the country's economic development, which means that the degree of effectiveness of Russian strategic weapons system must remain significantly higher than that of foreign counterparts.…”
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Biochemical Characterization of Partially Stabilized Parthenium hysterophorus L. and Cow Dung Consortium and Its Effect on the Growth Performance of Maize (Zea mays L.) by Shetie Gatew, Andargachew Mengistu

“…However, these methods are neither economically nor environmentally sound. Another approach is to make compost of it, transforming a problem into an opportunity. …”
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Assessment of the Nutritional Status and Associated Factors among Adolescent Girls in Preparatory Schools at Al-Kut City by Ammar Abbas Okab, Ahmed Kadhim Jawad

“…Results: In the distribution of body mass index of the study population, the highest percentage was 67.08% of participants with normal weight, followed by underweight 18.46%; the majority 82.8% were fed both types of feeding; the number of meals per day was 2–3 (66.2%); regular exercise answer was no 75.2%; type of exercise was aerobic 39.4%, health, family, and the environment of adolescent girls; most of the answers were yes and high significant correlation between socio-demographic characteristics and nutritional factors of adolescent girls, including their age, family members, father’s occupation, mother’s occupation, and arrangement in the family and show the significant relationship of their economic status. Conclusion: Nutritional status is very important for adolescent girls and very important to growth, development, and learning in school.…”
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The definition of the state value in terms of functional quintessence by S. G. Pevko

“…., while external functions include diplomatic and economic (in the context of foreign activities). Based on the analysis of the functions of the State which reflect the directions of its influence on society and which are regulatory in nature (and the very essence of the State is organisational in nature), the article concludes that the axiology of the State in terms of the functional definition is to organise society with the help of its inherent properties and to regulate social relations on the basis of its existing functions with a view to social development.…”
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Assessment of Production and Utilization Practices of Orange-Fleshed Sweet Potatoes (Ipomoea Batatas L.) in Sidama Region, Ethiopia by Miheret Hendebo, Ali Mohammed Ibrahim, Fekadu Gurmu, Hussien Mohammed Beshir

“…Combinations of social, ecological, and economic factors limit the production of sweet potatoes and therefore, a stronger extension system on agronomic practices and credit system should be made accessible to the farmers.…”
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