SOME BEST PROXIMITY POINT RESULTS OF SEVERAL α-ψ INTERPOLATIVE PROXIMAL CONTRACTIONS

Jia Deng,Xiao-lan Liu,Yan Sun,Laxmi Rathour 경남대학교 기초과학연구소 2022 Nonlinear Functional Analysis and Applications Vol.27 No.3

In this paper, we introduce several types α-ψ interpolative proximal contractions and provide some sfficient conditions to prove the existence of best proximity points for these contractions in metric spaces. In the case of proximal contraction of the first kind, these metric spaces are not necessarily complete. Meanwhile, some new results can derive from our results. Finally, some examples are provided to show the validity of our results.

Stemphylium platycodontis sp. nov., isolated from Platycodon grandiflorus in Korea

Deng, Jian Xin,Paul, Narayan Chandra,Li, Mei Jia,Cho, Hye Sun,Lee, Hyang Burm,Yu, Seung Hun Springer-Verlag 2014 Mycological progress Vol.13 No.3

Improving Bricks (kaolin) Performance by adding Incinerator Bottom Ash and Adjusting Kiln Calcination Temperatures

( Deng-fong Lin ),( Huan-lin Luo ),( Wei-zhu Wang ),( Jia-wen Chen ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 ISSE 초록집 Vol.2019 No.-

The bottom ash (BA) is the residuals of the municipal trashes after incinerated in an incinerator plant. The BA is usually collected and landfilled as the final disposal treatment. However, it becomes harder finding locations for Taiwan as an island with a very scarce land for the landfill treatment. Moreover, the amount of the BA recycled was far behind the amount produced in which leading to a hard problem for central and local governments. How to properly recycle or reuse of the BA becomes an urgent need. From the results obtained by many different researchers, the use of the BA as a ceramic material may help improve the strength of related products. In this study, the BA was applied as part of the replacement for kaolin in the manufacture of the brick specimens. To investigate the effects of the kiln temperature on the brick specimens and evaluate the related properties of the specimens, the kiln temperatures were set at 850, 900, and 950℃. The municipal solid waste incineration BA was applied as part of kaolin replacement in the manufacture of bricks. Test results showed that the shrinkage increment of bricks tended to be smooth when the BA replacement was larger than 10%. Moreover, the results of loss on ignition indicated that the organic and inorganic matters and heavy metal were mostly burned off at the kiln temperature of 900℃ or above. The compressive strengths of bricks increased with the increase amount of BA replacement. The study of the micro structure observations showed that the silicification of the brick specimen bodies reduced with the increase amount of the BA replacement. Moreover, the results obtained from XRD indicated that the peak intensities of the SiO₂ in the brick specimens decreased with increase amount of the BA replacement. This study suggested that the optimal amount of BA replacement and the kiln temperature were 20% and 950℃, respectively.

Inhibition of acetylation of histones 3 and 4 attenuates aortic valve calcification

Jia Gu,Yan Lu,Menqing Deng,Ming Qiu,Yunfan Tian,Yue Ji,Pengyu Zong,Yongfeng Shao,Rui Zheng,Bin Zhou,Xiangqing Kong,Wei Sun 생화학분자생물학회 2019 Experimental and molecular medicine Vol.51 No.-

Aortic valve calcification develops in patients with chronic kidney disease who have calcium and phosphate metabolic disorders and poor prognoses. There is no effective treatment except valve replacement. However, metabolic disorders put patients at high risk for surgery. Increased acetylation of histones 3 and 4 is present in interstitial cells from human calcific aortic valves, but whether it is involved in aortic valve calcification has not been studied. In this study, we found that treating cultured porcine aortic valve interstitial cells with a high-calcium/high-phosphate medium induced calcium deposition, apoptosis, and expression of osteogenic marker genes, producing a phenotype resembling valve calcification in vivo. These phenotypic changes were attenuated by the histone acetyltransferase inhibitor C646. C646 treatment increased the levels of class I histone deacetylase members and decreased the acetylation of histones 3 and 4 induced by the high-calcium/high-phosphate treatment. Conversely, the histone deacetylase inhibitor suberoylanilide hydroxamic acid promoted valve interstitial cell calcification. In a mouse model of aortic valve calcification induced by adenine and vitamin D treatment, the levels of acetylated histones 3 and 4 were increased in the calcified aortic valves. Treatment of the models with C646 attenuated aortic valve calcification by restoring the levels of acetylated histones 3 and 4. These observations suggest that increased acetylation of histones 3 and 4 is part of the pathogenesis of aortic valve calcification associated with calcium and phosphate metabolic disorders. Targeting acetylated histones 3 and 4 may be a potential therapy for inoperable aortic valve calcification in chronic kidney disease patients.

A Shortcut to the Preparation of Naturally Occurring Arbutin

Jia-Lu Xue,Jin-Wei Yang,Qiong Deng,Xiao-Peng He,Guo-Rong Chen 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.7

Mortality of Major Cancers in Guangxi, China: Sex, Age and Geographical Differences from 1971 and 2005

Deng, Wei,Long, Long,Li, Ji-Lin,Zheng, Dan,Yu, Jia-Hua,Zhang, Chun-Yan,Li, Ke-Zhi,Liu, Hai-Zhou,Huang, Tian-Ren Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.4

The incidence and mortality rates of liver and nasopharyngeal cancer in Guangxi province of China have always been among the highest in the world, and cancer is one of the major diseases that pose a threat to the health of residents in Guangxi. However, no systematic study has been performed to evaluate the time trends in the structure of cancer-related deaths and cancer mortality. In this study, we reveal sex, age and geography differences of cancers mortality between three death surveys (1971 to 1973, 1990 to 1992, and 2004 to 2005). The results show that the standardized mortality rate of cancer in Guangxi residents has risen from 43.3/100,000 to 84.2/100,000, the share of cancer deaths in all-cause deaths has increased from 13.3% to 20.7%, and cancer has become the second most common cause of death. The five major cancers, liver cancer, lung cancer, gastric cancer, nasopharyngeal cancer and colorectal cancer, account for 60% of all the cancer deaths. Cancers with growing mortality rates over the past 30 years include lung cancer, colorectal cancer, liver cancer and female breast cancer, of which lung cancer is associated with the sharpest rise in mortality, with a more than 600% rise in both men and women. Cancer death in Guangxi residents occurs mainly in the elderly population above 45 years of age, especially in people over the age of 65. The areas with the highest mortality rates for liver cancer and nasopharyngeal cancer, which feature regional high incidences, include Chongzuo and Wuzhou. Therefore, for major cancers such as liver cancer, lung cancer, gastric cancer, nasopharyngeal cancer and female breast cancer in Guangxi, we can select high-risk age groups as the target population for cancer prevention and control efforts in high-prevalence areas in a bid to achieve the ultimate goal of lowering cancer mortality in Guangxi.

Analysis of Magnetic Particle Agglomeration Structure and Interaction Forces Between Magnetic Particles

Jia Long,Zixu Miao,Huihuang Chen,Rongdong Deng,Weiran Zuo,Bao Guo,Jiangang Ku 한국자기학회 2020 Journal of Magnetics Vol.25 No.1

Chain-like and diamond-shaped magnetic particle agglomeration (MPA) commonly forming in a weak magnetic field are simulated based on the finite element method (FEM), and the effects of particle diameter, magnetic field strength, particle relative magnetic permeability, and particle number in magnetic particle chains (MPCs) and diamond-shaped MPA on the strength of MPA are analysed in detail. The results show that magnetic forces on the centre contact points (CCPs) of MPA are positively correlated with the particle diameter, magnetic field strength, particle relative magnetic permeability, and particle number. In addition, the forces on the CCPs of the MPCs (N=2) have a square relationship with the particle diameter and magnetic field strength and have a power relationship of 1.25 with the particle relative magnetic permeability. The forces on each contact point decrease slowly from the centre to both ends in the MPCs and then rapidly decrease to one value (approximately 0.779 times the forces on the CCPs). As for the diamond-shaped MPA, with the increase in the angle α between the magnetic field and axis of diamond-shaped MPA, the force magnitude of the particle entrained parallelly in the diamond-shaped MPA shows a trend of a “cosine curve” shape and the minimum value is 2109 times that of the entrained particle’s gravity. The angle θ between the direction of the force and the negative X-axis shows a trend of a “sine curve” shape. When α = 25° and 155°, the angle θ of the force on the entrained particle reaches an extreme value, that is, θ = 21.87°. Only if the angle θ reaches 30º can the particle entrained parallelly escape from the diamond-shaped MPA. Thus, the diamond-shaped MPA remains in a stable state and it is difficult to disperse MPA by changing the direction of the magnetic field.

Study on Flexural and Shear Behavior of UHPC Rhombus-Strip-Shaped Joint

Shuwen Deng,Banfu Yan,Lian Shen,Mingxin Qin,Yina Jia 한국콘크리트학회 2024 International Journal of Concrete Structures and M Vol.18 No.1

Accelerated bridge construction (ABC) has many advantages for bridge construction in modern society. While for ABC, the post-cast joint is always the weakest and most critical part. This paper presents a UHPC rhombus-strip-shaped (RSS) joint suitable for ABC. Several model tests were carried out to verify its resistance to flexural and shear. First, large-scale model tests are advanced to confirm its flexural properties. The results show that densified and welded joint interface rebars can significantly improve the ultimate bearing capacity and durability-based cracking stress of the RSS joint beams, and the ultimate bearing capacity can reach 90% of the complete beam. Then the shear-resistance tests were carried out. The results show that the UHPC RSS joint beam has excellent bending-shear mechanical properties and better ductility. Lastly, the ultimate flexural bearing capacity and shear-resistance capacity calculation methods were obtained.

Hierarchically magnetic Ni–Al binary layered double hydroxides: towards tunable dual electro/magneto-stimuli performances

Li Deng,Wenpeng Jia,Wen Zheng,Hao Liu,Degang Jiang,Zimeng Li,Yu Tian,Wenling Zhang,Jingquan Liu 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.58 No.-

Ni–Al layered double hydroxides (Ni–Al LDHs) are adopted as an electrorheological (ER) materialascribed to their special layered structure, ample polarizable groups and good dispersibility. Themagnetite nanoparticles (Fe3O4 NPs) are utilized as classical magnetorheological (MR) materials onaccount of their excellent paramagnetic property. In this work, we report the rational design of highperformanceER/MR materials by integrating the structural merits of Fe3O4 NPs onto a binary layeredstructure system. The obtained Fe3O4/Ni–Al LDH NCs dispersed in silicone oil displayed appealing dualER/MR performances. The work opens a new path toward novel stimuli-responsive materials forindustrial applications.

Mugwort Pollen-Related Food Allergy: Lipid Transfer Protein Sensitization and Correlation With the Severity of Allergic Reactions in a Chinese Population

Shan Deng,Jia Yin 대한천식알레르기학회 2019 Allergy, Asthma & Immunology Research Vol.11 No.1

Purpose: Little is known about the importance of lipid transfer protein (LTP) sensitization in China. In this study, we investigated the relationship between LTP sensitization and the severity of clinical symptoms in a population of patients with mugwort pollen-related food allergy. Methods: Food-induced symptoms were evaluated in 148 patients with mugwort pollen allergy by a standardized questionnaire. Specific immunoglobulin E (IgE) to Art v 1, Art v 3, Pru p 3, Ara h 9 and Cor a 8 were quantified by ImmunoCAP. Immunoblotting of peach extracts were performed with sera from peach-allergic patients. Results: In total, 72% (107/148) of the study population experienced food allergy. Forty-eight percent (51/107) of patients with mugwort pollen-related food allergy experienced at least 1 episode of food-induced anaphylaxis. Food allergy correlated with IgE reactivity to Art v 3, but not to Art v 1. Sensitization to Pru p 3, Ara h 9 or Cor a 8 was prevalent (80%, 69 or 63%, respectively) among individuals with food allergy. Food allergic patients with systemic reactions (SR) had higher values for Pru p 3, Ara h 9 and Cor a 8 than patients with oral allergy syndrome (OAS). Furthermore, the strong IgE reactivity detected in immunoblots of peach extracts indicated that Pru p 3 was the major allergen and was more prevalent in patients with SR than in patients with OAS (100% vs. 55%). Conclusions: LTPs are major food allergens for mugwort pollen-related food allergy in China, and may contribute to SR.