Experimental Study on the Mechanics Characteristics of CFRP Strengthening of Highway Tunnels at Different Damage States

Liu, Xuezeng; Sang, Yun-long; Ding, Shuang; You, G; Zhu, Wancheng; Zhou, Ruoyang; Wei, Qiang; Jiang, Liang

doi:10.1155/2020/6665996

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…It was found that dipyridamole significantly reduced the thrombus formation of the polyurethane surface and significantly reduced the adhesion of platelets, thereby improving the blood compatibility of the polyurethane [5]. Ozkan et al pointed out that it is necessary to enhance the positive attitude of patients to treatment, reduce their anxiety, depression and other negative emotions, extend the survival period of cancer patients, improve their quality of life, and improve the recovery rate of patients; we believe that we will provide clinical standards for this illness [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Role of Folic Acid Drugs in the Treatment with Antithrombotic and Anticoagulant Drugs for Patients with Cardiovascular Diseases Based on the Analysis of Virtual Reality Medical Data

Zhang

Wang

Qiang

2021

Journal of Healthcare Engineering

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In recent years, with the continuous progress and development of science and technology and the increasing maturity of medical technology, the incidence of cardiovascular diseases has gradually increased with the age of the population. In the case of cardiovascular disease, proper anticoagulant therapy can effectively prevent bleeding in the occurrence of events, so a more effective treatment of cardiovascular disease is considered a difficult problem to overcome. Therefore, this article proposes the role of folic acid drugs based on virtual reality medical data analysis in the treatment of cardiovascular disease patients with antithrombotic and anticoagulant drugs, in order to improve providing help for cardiovascular disease. This study selected patients with cardiovascular disease who were admitted to the hospital and extracted 100 patients with complete data and a one-year follow-up period, covering the overall status of the patients’ cardiovascular risk factors, cardiovascular disease degree, and the occurrence of major cardiovascular adverse events. During the follow-up period, we analyzed the specific status of major cardiovascular adverse events and the occurrence of bleeding events and compared and analyzed the effects of folic acid drugs on the treatment with antithrombotic and anticoagulant drugs in patients with cardiovascular disease. Experiments have proved that the differences in the degree of cardiovascular stenosis and the number of cardiovascular disease vessels in the four groups are statistically significant ( P < 0.01 ). The degree of cardiovascular stenosis in group D was lighter than that in groups A, B, and C, and the number of cardiovascular lesions was also less than that in groups A, B, and C. The differences were statistically significant ( P < 0.05 ). This indicates that folic acid can effectively treat cardiovascular stenosis, prevent cardiovascular disease, and then treat patients with cardiovascular disease with antithrombotic and anticoagulant drugs. It provides an important basis for accurate clinical diagnosis and treatment.

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Section: Introductionmentioning

confidence: 99%

Role of Folic Acid Drugs in the Treatment with Antithrombotic and Anticoagulant Drugs for Patients with Cardiovascular Diseases Based on the Analysis of Virtual Reality Medical Data

Zhang

Wang

Qiang

2021

Journal of Healthcare Engineering

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“…Only the input vector that meets this condition can contribute to the SVM model. is is the sparsity of the SVM solution [9,10].…”

Section: Treatmentmentioning

confidence: 99%

Treatment Technology of Microbial Landscape Aquatic Plants for Water Pollution

Hu¹,

2021

Advances in Materials Science and Engineering

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With the rapid development of industrial and agricultural production, the rapid growth of population, and the acceleration of urbanization, the problem of water pollution is becoming more and more serious. Water shortages and pollution disrupt the balance of ecosystems and seriously limit people’s health and rapid economic development. Nowadays, the method of repairing sewage bodies using microbial landscape aquatic plants is attracting more and more attention, and it is a big challenge to maintain the sustainable development of human beings and nature. This paper uses floating rafts to combine microorganisms and landscape aquatic plants to conduct sewage treatment experiments. According to microorganisms, landscape aquatic plants absorb nutrients in the water body, examine the changes in water quality during the restoration of microorganisms’ landscape aquatic plants, and establish the growth of microorganisms’ landscape aquatic plants. The relationship with changes in water quality aims to provide a theoretical basis for the treatment of slow-flowing water bodies such as lakes, reservoirs, large artificial ponds, and rivers. In this paper, the experiments are divided into four groups (A (experimental sewage + microbial inoculant), B (experimental sewage + plant), C (experimental sewage + microbial inoculant + plant), and D (experimental sewage)). It can be divided into the total nitrogen content, total phosphorus content, and COD value data, and chromaticity detection of each group of the test is continuously monitored weekly to comprehensively detect and observe the repair effect on contaminated water bodies. The experiment proved that the water quality of the three treatment groups was significantly clearer than that of the blank control group, and its clarity: microorganism + plant > microorganism > plant > blank control group. This shows that the combination of microorganisms and landscape aquatic plants can effectively reduce the various pollutants contained in sewage and reduce the color of sewage. Treating sewage using plant technology that combines microorganisms is feasible and promising.

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“…Therefore, research on the damage of water conveyance tunnels and the related treatment measures have attracted much attention from scholars. Carbon fiber reinforced plastics (CFRPs) have the advantages of a high strength-weight ratio, short installation period, minimal impact on the concrete structure and adaptability to curved surfaces (Sun et al, 2017;Yang et al, 2019;Liu et al, 2020). Since CFRP reinforcement technology can effectively limit the continuous expansion of concrete cracks and prevent the lining from being broken and spalling, it has gradually become a common and effective way to strengthen the internal surface of a pressure tunnel lining (Wang and Lee, 2012;Liu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Stress Transferring Mechanism of a Pressure Tunnel Lining Strengthened with CFRP

Qin

Yang

Jin³

2021

Lat. Am. j. solids struct.

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This paper investigates the stress transferring mechanism of a pressure tunnel strengthened with CFRP. A simplified mechanical model of the internal water pressure transfer from the CFRP to the lining concrete is established, and the key parameters that influence the internal water pressure transfer between the CFRP and lining concrete are identified. A solid-spring-solid three-dimensional finite element model is established. Using the numerical model, the influences of the above key parameters on the ratios of the internal water pressure borne by the concrete and CFRP are investigated. Based on the above results, a reinforcement scheme of the Yellow River Crossing Tunnel is studied and optimized as a case study. This reveals that the elastic modulus and thickness of the CFRP are the two most important factors that affect the ratios of the internal water pressure borne by the concrete and CFRP, and increasing the elastic modulus and thickness of the CFRP can decrease the ratio of the internal water pressure borne by the concrete and improve the stress state of the lining concrete.

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Experimental Study on the Mechanics Characteristics of CFRP Strengthening of Highway Tunnels at Different Damage States

Cited by 5 publications

References 12 publications

Role of Folic Acid Drugs in the Treatment with Antithrombotic and Anticoagulant Drugs for Patients with Cardiovascular Diseases Based on the Analysis of Virtual Reality Medical Data

Role of Folic Acid Drugs in the Treatment with Antithrombotic and Anticoagulant Drugs for Patients with Cardiovascular Diseases Based on the Analysis of Virtual Reality Medical Data

Treatment Technology of Microbial Landscape Aquatic Plants for Water Pollution

Stress Transferring Mechanism of a Pressure Tunnel Lining Strengthened with CFRP

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