International Core Journal of Engineering
Boya Century Publishing Limited,正常發行
選擇卷期
- 期刊
As an important channel for land-sea connection, the submarine pipeline is a link for offshore oil and gas development. Third-party activities are one of the important risk sources of submarine pipeline damage, and relevant scholars have researched this. With the diversification of marine development activities, the safety assessment of submarine pipelines by third-party activities must also keep pace with the times. Based on the analysis of the third-party risk factors of submarine pipelines by predecessors, this paper summarizes the current human activities at sea and divides these into three categories: water transportation and transportation, marine development and utilization, and fish farming and fishing. It discussed the mutual influence of various maritime activities on submarine pipelines and improved the investigation content system for preventing third-party sabotage of submarine pipelines. And taking a submarine pipeline as an example, the system is applied to the investigation of the third-party damage prevention of submarine pipelines. The third-party marine development activities affecting the operation and maintenance of submarine pipelines were classified and evaluated. The regional distribution of pipeline routing risks was proposed. The evaluation results have significant reference value for the planning, design, operation, and maintenance of submarine pipelines.
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In view of the lack of 'special price' oriented function software in the current market, it is recommended to recommend air tickets, hotels and appropriate tourist cities, use Python language to compile web crawlers, crawl the air tickets, hotels and scenic spots of Ctrip and qunar, and use spring boot By analyzing the data and information obtained, the special price recommendation and popular scenic spot recommendation in the current season are realized, which fills in the vacancy of ＂economical and applicable＂ on large-scale tourism websites, and provides viewing direction for users who want to plan their own travel routes.
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Chronic glomerulonephritis is a common glomerular disease in China, which will eventually develop into renal failure, seriously threatening human health and life, and the combination of Chinese and Western medicine has achieved certain curative effects. Modern pharmacological studies have also shown that Polyporus Umbellatus has diuretic, anti-tumour, hepatoprotective, renal protective, immune regulating, anti-infective, anti-mutagenic and anti-fibrotic effects, which have been widely used in clinical practice. However, the application of Polyporus Umbellatus in the treatment of chronic glomerulonephritis has not been systematically elaborated. Through reviewing relevant pharmacological research progress and animal experiments, this study elaborates the pharmacological mechanism of Polyporus Umbellatus in the treatment of chronic glomerulonephritis, showing that Polyporus Umbellatus plays a role in diuresis, renal protection, anti-fibrosis, immunomodulation, anti-mutagenesis and anti-inflammation, aiming to provide a basis for the clinical application of Polyporus Umbellatus in the treatment of chronic glomerulonephritis. The aim is to provide a basis for the clinical application of Polyporus Umbellatus in the treatment of chronic glomerulonephritis.
- 期刊
According to the law of price transmission, the change of PPI will be transmitted downward to the production of consumer goods through the input-output relationship, causing the change of CPI in the same direction, which is the positive transmission mechanism of PPI to CPI. Changes in CPI will have a certain feedback effect on PPI, leading to changes in PPI in the same direction, which is the mechanism of CPI forcing PPI in reverse. But in recent years, CPI and PPI have diverged in the opposite direction, and the divergence has intensified. The monthly data of CPI and PPI from January 2016 to November 2021 in China are selected to establish VAR model, and granger causality test is used to find that there is Granger cause between CPI and PPI. Through the analysis of impulse response containing function, it is found that there is a certain short-term relationship between the trend of consumer price index and producer price index.
- 期刊
With the rapid growth of cars and the scarcity of parking spaces, the contradiction between them has become increasingly acute. How to solve the ＂parking problem＂ has always been a problem of great concern to every country. Only expanding the number of parking spaces or building new parking lots by traditional means can not actually solve this problem. With the vigorous development of the Internet of things and navigation technology, which are widely used in all walks of life, the management of the parking lot is also transforming and upgrading to intelligent, so as to realize the interconnection of parking lot information. This paper presents an optimization design scheme of intelligent parking simulation system for automobile intelligent simulation. The intelligent parking simulation system is designed by database, and then the system is optimized by variable universe fuzzy arithmetic. The research of intelligent parking system based on intelligent simulation not only optimizes the allocation of social resources and promotes the image of the city, but also solves the problems of people's livelihood. It is an important part of promoting the construction of smart city.
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This paper uses CiteSpace software to draw a knowledge map of authors, institutions and keywords, analyzes 913 academic journals related to ＂China's carbon emission reduction＂ published in the core and CSSCI literature databases of Peking University from 2002 to 2021 by CNKI, and combs the research hotspots and trends related to ＂China's carbon emission reduction＂. The results show that: (1) the research on carbon emission reduction in China first appeared in 2002, and the number of published documents increased sharply between 2009-2011 and 2019-2021. The school of economics of Zhongnan University of Finance and economics and the Institute of science and technology policy and management of the Chinese Academy of sciences are important institutions studying ＂China's carbon emission reduction＂. Wang Zheng, he Jiankun and other experts have significant influence in the field of carbon emission reduction research. (2) China's carbon emission reduction research includes such major topics as ＂emission reduction cost＂, ＂carbon trading＂, ＂carbon peaking＂ and ＂emission reduction technology＂. From the perspective of hot spot evolution, the period from 2002 to 2008 belongs to the basic stage of carbon emission reduction research. Scholars began to pay attention to the research on the impact of climate change on carbon emission reduction; From 2008 to 2010, scholars paid more attention to the research of ＂low-carbon economy＂ and ＂low-carbon development＂; From 2010 to 2015, scholars paid more attention to the research on ＂energy intensity＂ and ＂hidden carbon＂; From 2015 to 2021, scholars paid more attention to the research on carbon trading on the basis of previous studies.
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The ash in the blast furnace dust removal ash storage bin is usually sucked and transported away by the ash suction tanker, while the ash particles in the ash storage bin are extremely small, and under the action of its own weight and water vapor, it is easy to be hardened together, and it is difficult to be attracted by the ash suction tanker. We have conceived a boiling and unloading device for the ash storage bin of a dust removal system, which makes the dust in the ash bin boil, and then opens the electric butterfly valve to start suction. Therefore, the dust in the concentrated dust is raised, the work efficiency is improved, the energy consumption of the ash suction tanker is reduced, and the labor intensity of the operator is reduced.
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With the rapid economic growth, the scale of construction projects is gradually expanded, and the difficulty of construction is also increasing. Only do a good job in the construction project management, strengthen the construction site management, timely deal with the problems and shortcomings in the construction process, ensure the construction efficiency and quality, in order to achieve the standards and requirements of the construction project. This article mainly takes the construction engineering as the research object, analyzes the construction site management optimization and perfect related content in the project management, in order to improve the construction quality and benefit, and promote the sustainable development of the construction industry.
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In recent years, with the widespread application of artificial intelligence technology, the demand for large-scale and super large-scale artificial intelligence (AI) chips with complex logic is increasing. In order to meet the needs of market applications, how to improve the design efficiency has become an important topic of AI chip design. However, the entire semiconductor ecosystem is changing now. These changes indicate that the way chip manufacturers enter the market and the factors important to them are fundamentally changing. The theory of ＂demand leads to innovation＂ holds that patent activities or invention activities, like other economic activities, are basically economic activities that seek profits and are guided and restricted by market demand. Therefore, the market demand affects the innovation of chip design technology.
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In July 2021, the ＂double reduction＂ policy was introduced. Under this background, what kind of waves will Chinese off-campus training market experience? By analyzing the financial statements of company X in the second and third quarters of 2021, it is found that its stock performance, profitability performance and growth ability performance have all suffered a huge impact. As a giant in Chinese off-campus training industry, company X's financial performance reflects that the off-campus training industry is going through a ＂cold winter＂. In the context of the new policy, this paper gives the following suggestions: 1. Change thinking and seek cooperation with public schools. 2. Diversified transformation and emphasis on online education. 3. The strong man breaks his wrist and develops quality education.4. Strong alliances and mergers with similar companies.