Wave propagation analysis of porous functionally graded curved beams in the thermal environment

Xinli Xu,Chunwei Zhang,Farayi Musharavati,Tamer A. Sebaey,Afrasyab Khan 국제구조공학회 2021 Structural Engineering and Mechanics, An Int'l Jou Vol.79 No.6

In the present paper, wave propagation behavior of porous temperature-dependent functionally graded curved beams within the thermal environment is analyzed for the first time. A recently-developed method is utilized which considers the reciprocal effect of mass density and Young’s modulus in order to explore the influence of porosity. Three different types of temperature variation (uniform temperature change (UTC), linear temperature change (LTC), sinusoidal temperature change (STC)) are employed to study the effect of various thermal loads. Euler-Bernoulli beam theory, also known as classic beam theory is implemented in order to derive kinetic and kinematic relations, and then Hamilton’s principle is used to obtain governing equations of porous functionally graded curved beams. The obtained governing equations are analytically solved. Eventually, the influences of various parameters such as wave number, porosity coefficient, various types of temperature change and power index are covered and indicated in a set of illustrations.

Dispersion of waves characteristics of laminated composite nanoplate

Xinli Xu,Chunwei Zhang,Farayi Musharavati,Tamer A. Sebaey,Afrasyab Khan 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.40 No.3

The current work fills a gap of a small-scale study on wave propagation behavior of symmetric, antisymmetric, and quasi-isotropic cross/angle-plies laminated composite nanoplates. The governing equations are derived through the Hamiltonian principle for four-variable refined shear deformation plate theory in conjunction with the assumption of a non-classical theory, and then size-dependent formulations are solved via an analytical solution procedure. This work provides information to accurately analyze the influence of lay-up numbers and sequences, geometry, fiber orientations, and wave numbers on the size-dependent wave propagation response of laminated composite nanoplates.

Antifungal Activity of Lichen-forming Fungi against Colletotrichum acutatum on Hot Pepper

Xinli Wei,Hae-Sook Jeon,Keon Seon Han,고영진,허재선 한국식물병리학회 2008 Plant Pathology Journal Vol.24 No.2

Antifungal activity of Korean and Chinese lichen-forming fungi (LFF) was evaluated against plant pathogenic fungus of Colletotrichum acutatum, causal agent of anthracnose on hot pepper. This is the first attempt to evaluate antifungal activity of LFF, instead of lichen thalli, against C. acutatum. Total 100 LFF were isolated from the lichens with discharged spore method or tissue culture method. Among the 100 isolates, 8 LFF showed more than 50% of inhibition rates of mycelial growth of the target pathogen. Especially, Lecanora argentata was highly effective in inhibition of mycelial growth of C. accutatum at the rate of 68%. Antifungal activity of other LFF was in the order of Cetrelia japonica (61.4%), Ramalina conduplicans (59.5%), Umbilicaria esculenta (59.5%), Ramalina litoralis (56.7%), Cetrelia braunsiana (56.5%), Nephromopsis pallescensn (56.1%), and Parmelia simplicior (53.8%). Among the tested LFF, 61 isolates of LFF exhibited moderate antifungal activity against the target pathogen at the inhibition rates from 30 to 50%. Antifungal activity of the LFF against C. acutatum was variable at the species level rather than genus level of LFF. This study suggests that LFF can be served as a promising bioresource to develop novel biofungicides.

Mechanical Behaviors of Pile-reinforced Landslides under Reservoir Impoundment Using Physical Model Testing

( Xinli Hu ) 대한지질공학회 2019 대한지질공학회 학술발표회논문집 Vol.2019 No.2

Piles have been widely used to stabilize landslides in reservoir area. The interaction between stabilizing piles and landslide body is complicated and is vital for evaluating the long-term safety of landslides and reservoirs. Taking the Majiagou landslide in Hubei Province, China, as a prototype, two physical models with and without piles were constructed with a geometrical similarity ratio of 1:40. The water level in the models was raised and maintained to an elevation of 0.89 m. The deformation, earth pressure, and pore-water pressure of the landslide and the strain of one representative pile were recorded during the tests. The comparison between the model with piles and that without piles shows that: (1) Piles significantly improved the deformation resistance of landslides. Landslides with piles can tolerate a larger deformation before failure and the displacement rate of landslides after failure was reduced; (2) The implantation of piles changed the soil pressure distribution of landslides. The soil pressures at the upslope and around the piles increased while those at the downslope decreased. The distribution of soil pressures along the depth at the uphill and downhill side of the piles changed from triangular to invert triangular and parabolic, respectively; (3) Piles arrested the anticipant slip surface that occurred in an unreinforced landslide, and at least two sliding bands traversed the landslide. (4) Comparison of the pile-reinforced landslide model with those in literature with piles with a much higher stiffness show that the stiffness of piles significantly affects the mechanical interaction between piles and landslides.

Sick sinus syndrome associated with Erdheim- Chester disease was reversed by interferon-alpha treatment

( Xinli Guo ),( Yuanwei Xu ),( Ke Wan ),( Yucheng Chen ) 대한내과학회 2022 The Korean Journal of Internal Medicine Vol.37 No.1

Antifungal Activity of Lichen-forming Fungi against Colletotrichum acutatum on Hot Pepper

Wei, Xinli,Jeon, Hae-Sook,Han, Keon-Seon,Koh, Young-Jin,Hur, Jae-Seoun The Korean Society of Plant Pathology 2008 Plant Pathology Journal Vol.24 No.2

Antifungal activity of Korean and Chinese lichen-forming fungi (LFF) was evaluated against plant pathogenic fungus of Colletotrichum acutatum, causal agent of anthracnose on hot pepper. This is the first attempt to evaluate antifungal activity of LFF, instead of lichen thalli, against C. acutatum. Total 100 LFF were isolated from the lichens with discharged spore method or tissue culture method. Among the 100 isolates, 8 LFF showed more than 50% of inhibition rates of mycelial growth of the target pathogen. Especially, Lecanora argentata was highly effective in inhibition of mycelial growth of C. accutatum at the rate of 68%. Antifungal activity of other LFF was in the order of Cetrelia japonica (61.4%), Ramalina conduplicans (59.5%), Umbilicaria esculenta (59.5%), Ramalina litoralis (56.7%), Cetrelia braunsiana (56.5%), Nephromopsis pallescensn (56.1%), and Parmelia simplicior (53.8%). Among the tested LFF, 61 isolates of LFF exhibited moderate antifungal activity against the target pathogen at the inhibition rates from 30 to 50%. Antifungal activity of the LFF against C. acutatum was variable at the species level rather than genus level of LFF. This study suggests that LFF can be served as a promising bioresource to develop novel biofungicides.

Arbitration of Sino-Korean Commercial Disputes

Du, Xinli(杜新麗) 한국국제사법학회 2007 國際私法硏究 Vol.- No.13

酿酒产业对中国宜宾文化城市建设的影响

李欣丽(XinLi Li),涂波(Tu Bo) 한국국회학회 2022 한국과 세계 Vol.4 No.6

宜宾市有着2200多年的建城史,是中国国务院命名的国家历史文化名城之一。宜宾市作为重要的白酒生产基地,白酒酿造的历史悠久,其酿酒产业不仅在中国的知名度较高,而且宜宾的白酒还销往全球的各个国家。当前,宜宾正在响应中国的十四五规划,以文化建设带动城市建设,打造长江上游的示范性生态新区,并争创“经济副中心”。宜宾城市的建设和酿酒产业的发展相互交融,酿酒产业的发展对宜宾的城市建设,特别是文化城市的建设有着重要的影响。本文运用文献分析的方法,考察了酿酒产业对宜宾文化城市建设的影响。综合宜宾文化城市的发展与酿酒产业的相关度,本研究认为酿酒产业主要改变了宜宾文化城市的面貌布局,影响了城镇文化景观、周边建设和布局结构;酿酒产业丰富了宜宾市人民的生活文化习俗,使城市文化变得更加丰富多彩;酿酒产业还给宜宾市提供了独特的酒都文化旅游资源,推动了宜宾市旅游文化的发展。 With the history of more than 2,200 years, Yibin is one of the national historical and cultural cities named by The State Council of China. As an important alcohol production base, Yibin city has a long history of alcohol brewing. Its brewing industry products are not only well-known in China, but also sold to various countries around the world. Yibin is currently responding to China's 14th Five-Year Plan, promoting urban construction with cultural construction and developing the alcohol industry ,and trying to build an ecological new area in the upper reaches of the Yangtze River to become an “economic sub-center” in Sichuan province. The construction of Yibin city and the development of alcohol industry are intertwined together, and the development process of alcohol industry has an important influence on the urban construction of Yibin, especially in the cultural city construction. In this study, we used literature analysis to investigate the influence of alcohol industry to the construction of Yibin cultural city. Based on the degree of correlation between development elements of Yibin cultural city and alcohol industry, we believe that the alcohol industry mainly has changed the appearance and layout of the cultural landscape, and influenced the urban surrounding construction and distribution structure. What’s more, alcohol industry has enriched the life of Yibin people, and made the urban culture more colorful. Last but not least, the alcohol industry also has provided Yibin with unique tourism cultural resources, which promotes the development of Yibin’s tourism culture.

Baseline Total Metabolic Tumor Volume and Total Lesion Glycolysis Measured on 18F-FDG PET-CT Predict Outcomes in T-Cell Lymphoblastic Lymphoma

Xiaoyan Feng,Xin Wen,Ling Li,Zhenchang Sun,Xin Li,Lei Zhang,Jingjing Wu,Xiaorui Fu,Xinhua Wang,Hui Yu,Xinran Ma,Xudong Zhang,Xinli Xie,Xingmin Han,Mingzhi Zhang 대한암학회 2021 Cancer Research and Treatment Vol.53 No.3

Purpose There is no optimal prognostic model for T-cell lymphoblastic lymphoma (T-LBL). Here, we discussed the predictive value of total metabolic tumor volume (TMTV) and total lesion glycolysis (TLG) measured on 18F-fluorodeoxyglucose positron emission tomography–computed tomography (PET-CT) in T-LBL.Materials and Methods Thirty-seven treatment naïve T-LBL patients with PET-CT scans were enrolled. TMTV was obtained using the 41% maximum standardized uptake value (SUVmax) threshold method, and TLG was measured as metabolic tumor volume multiplied by the mean SUV. Progression-free survival (PFS) and overall survival (OS) were analyzed by Kaplan-Meier curves and compared by the log-rank test.Results The optimal cutoff values for SUVmax, TMTV, and TLG were 12.7, 302 cm3, and 890, respectively. A high SUVmax, TMTV, and TLG indicated a shorten PFS and OS. On multivariable analysis, TMTV ≥ 302 cm3, and central nervous system (CNS) involvement predicted inferior PFS, while high SUVmax, TLG and CNS involvement were associated with worse OS. Subsequently, we generated a risk model comprising high SUVmax, TMTV or TLG and CNS involvement, which stratified the population into three risk groups, which had significantly different median PFS of not reached, 14 months, and 7 months for low-risk group, mediate-risk group, and high-risk group, respectively (p < 0.001). Median OS were not reached, 27 months, and 13 months, respectively (p < 0.001).Conclusion Baseline SUVmax, TMTV, and TLG measured on PET-CT are strong predictors of worse outcome in T-LBL. A risk model integrating these three parameters with CNS involvement identifies patients at high risk of disease progression.

Synthesis of (co-)polyethylene with broad molecular weight distribution by the heterogenous Ziegler–Natta catalysts via one-pot strategy

Zhi Liu,Xinli Zhang,Haibing Huang,Jianjun Yi,Wei Liu,Weijiao Liu,Hongpeng Zhen,Kejing Gao,Mingge Zhang,Wantai Yang,Qigu Huang 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.6

A new method was presented for preparing (co-)polyethylene with broad molecular weight distribution (MWD) and high molecular weight employed by the novel heterogeneous Ziegler–Natta catalysts via one-pot strategy. The preparation of these catalysts involved the introduction of alkoxy silane compounds as electron donors. The influences of the electron donors structure, as well as polymerization conditions such as temperature, molar ratio of Al/Ti, ethylene pressure and the concentration of 1-hexene in feed on the polymerization performance for ethylene (co-)polymerization, were investigated. The morphology of the catalyst particles was characterized by SEM and Ti content of these catalysts was characterized by ICP. The GPC results showed that the obtained homopolyethylene and ethylene/1-hexene copolymer had the widest molecular weight distribution up to ca 50 when diethoxy-isopropoxy-(t–butoxy)-silane (ED3) was used as internal electron donor. The 13C NMR and FT-IR analysis indicated that these catalysts efficiently catalyzed the copolymerization of ethylene with 1-hexene.