從影響層面着中國小說的歷史定位 : 以靑心才人 <<金雲翹傳>>爲例

陳益源 中國語文硏究會 1998 中國語文論叢 Vol.15 No.-

Fabrication of silica/PVA‑co‑PE nanofiber membrane for oil/water separation

Yuanli Chen,Hui Fan,Xinlin Zha,Wenwen Wang,Yi Wu,Yi Xiong,Kun Yan,Yuedan Wang,Dong Wang 한국의류학회 2021 Fashion and Textiles Vol.8 No.1

High efficiency and anti-pollution oil/water separation membrane has been widely explored and researched. There are a large number of hydroxyl groups on the surface of silica, which has good wettability and can be used for oil-water separation membranes. Hydrophilic silica nanostructures with different morphologies were synthesized by changing templates and contents of trimethylbenzene (TMB). Here, silica nanospheres with radical pores, hollow silica nanospheres and worm-like silica nanotubes were separately sprayed on the PVA-co-PE nanofiber membrane (PM). The abundance of hydroxyl groups and porous structures on PM surfaces enabled the absorption of silica nanospheres through hydrogen bonds. Compared with different silica nanostructures, it was found that the silica/PM exhibited excellent super-hydrophilicity in air and underwater “oil-hating” properties. The PM was mass-produced in our lab through meltextrusion- phase-separation technique. Therefore, the obtained membranes not only have excellent underwater superoleophobicity but also have a low-cost production. The prepared silica/PM composites were used to separate n-hexane/water, silicone oil/ water and peanut oil water mixtures via filtration. As a result, they all exhibited efficient separation of oil/water mixture through gravity-driven filtration.

Effect of Workpiece Atom Diffusion into CBN Tool on its Mechanical Properties in Cutting Ni–Fe–Cr Alloy Based on Molecular Dynamics Simulation

Yi Hang Fan,Wen Yuan Wang,Zhao Peng Hao,Hengyi Yuan 한국정밀공학회 2021 International Journal of Precision Engineering and Vol.22 No.4

CBN (Cubic Boron Nitride) tool is suitable for precision machining of nickel-based alloy due to its high hardness and chemical inert. Nickel-based alloys are difficult-to-cut material. When high-speed cutting nickel-based alloys with CBN tool, the temperature at tool-workpiece interface is very high. The atoms in workpiece material diff use into the tool surface and change the performance of cutting tool, resulting in diffusion wear. Inconel 718, which is one kind of widely used nickel-based alloy, is mainly composed of nickel (Ni), iron (Fe) and chromium (Cr). In this paper, the cutting model which describes the single crystal CBN tool cutting Ni–Fe–Cr three-component alloy, and the compression and impact model of CBN tool crystal are established by using molecular dynamics (MD) method to study the diffusion of Ni, Fe and Cr atoms into CBN tool and the effects of diffusion on the properties of CBN crystal tool. The results show that the diffusion of Ni, Fe and Cr atoms into CBN tool decreases the compressive strength and impact toughness of CBN crystals and the effects degree of atom diffusion on the properties of CBN crystals are different.

Voltage Clamping Balance for Charging/Discharging Battery Module

Yi-Yuan Chung,Tsorng-Juu Liang,Wei-Jing Tseng,Jwo-Hann Liu 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5

This paper proposes a voltage clamping balance (VCB) method applied with battery power module (BPM) system. The VCB method, which indicates that battery balance is activated after the battery voltage reached its rated value, can save the cost of battery state of charge (SOC) estimation and increases system reliability while keeping the battery voltage in safe operating region. Otherwise, a VCB discharging experimental result shows that the proposed method can release more charge from battery than conventional discharging method in this paper. The proposed system composed of several BPMs and a system control circuit can provide energy as a DC voltage source in discharge mode, and can be charged by an external DC voltage source in charge mode. Meanwhile, the characteristics of BPM system such as high flexibility and capability of hot-swapping can be achieved by the proposed system. Finally, a 24-V LiFePO4 BPM system prototype containing 4 BPMs with 200-W power rating for each BPM is built to verify the feasibility of the proposed VCB method and the proposed BPM system.

Geochemical characteristics of sediments from East Dongting Lake and their implications for provenance and weathering

Yi Yuan,Baolin Liu,Hao Liu 한국지질과학협의회 2022 Geosciences Journal Vol.26 No.3

Dongting Lake is the second-largest freshwater lake in China. To better understand the geochemical characteristics of the sediment in different seasons and identify the possible provenance, 44 sediment samples collected from East Dongting Lake (ED Lake) in summer (ED-S) and winter (ED-W) were used for elemental geochemical analysis. Geochemically, the sediment samples are classified as shale, and the chondrite normalized rare earth element (REE) patterns of the ED-S and ED-W have light REE (LREE) enriched, flat heavy REE (HREE) patterns with a negative Eu anomaly. In the present study, the correlations between certain elements show that the variations in ΣREE contents in sediments may be due to the concentrations of heavy minerals like monazite, whereas grain size is not responsible for that variations. Chemical index of alteration (CIA), plagioclase index of alteration (PIA) values, A-CN-K diagram, and Th/U ratios of the ED-S and ED-W sediment indicate a moderate to high intensity of chemical weathering in the source area. The Al2O3/TiO2 ratio, discriminant function diagram, REE patterns, and elemental ratios indicate the contribution of sediments from felsic and intermediate source rocks. The provenance index (PI) based on REEs geochemical parameters suggest that elemental compositions of sediment in East Dongting Lake approach the Upper Yangtze River.

Association of GSTP1 and RRM1 Polymorphisms with the Response and Toxicity of Gemcitabine-cisplatin Combination Chemotherapy in Chinese Patients with Non-small Cell Lung Cancer

Yuan, Zhi-Jun,Zhou, Wen-Wu,Liu, Wei,Wu, Bai-Ping,Zhao, Jin,Wu, Wei,He, Yi,Yang, Shuo,Su, Jing,Luo, Yi Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.10

Background: Previous studies showed that genetic polymorphisms of glutathione S-transferase P1 (GSTP1) were involved in glutathione metabolism and genetic polymorphisms of ribonucleotide reductase (RRM1) were correlated with DNA synthesis. Here we explored the effects of these polymorphisms on the chemosensitivity and clinical outcome in Chinese non-small cell lung cancer (NSCLC) patients treated with gemcitabine-cisplatin regimens. Materials and Methods: DNA sequencing was used to evaluate genetic polymorphisms of GSTP1 Ile105Val and RRM1 C37A-T524C in 47 NSCLC patients treated with gemcitabine-cisplatin regimens. Clinical response was evaluated according to RECIST criteria after 2 cycles of chemotherapy and toxicity was assessed by 1979 WHO criteria (acute and subacute toxicity graduation criteria in chemotherapeutic agents). Results: There was no statistical significance between sensitive and non-sensitive groups regarding the genotype frequency distribution of GSTP1 Ile105Val polymorphism (p>0.05). But for RRM1 C37A-T524C genotype, sensitive group had higher proportion of high effective genotype than non-sensitive group (p=0.009). And according to the joint detection of GSTP1 Ile105Val and RRM1 C37A-T524C polymorphisms, the proportion of type A (A/A + high effective genotype) was significantly higher in sensitive group than in non-sensitive group (p=0.009). Toxicity showed no correlation with the genotypes between two groups (p>0.05). Conclusions: Compared with single detection of genetic polymorphisms of GSTP1 Ile105Val or RRM1 C37A-T524C, joint detection of both may be more helpful for patients with NSCLC to receive gemcitabine-cisplatin regimens as the first-line chemotherapy. Especially, genetic polymorphism of RRM1 is more likely to be used as an important biomarker to predict the response and toxicity of gemcitabine-cisplatin combination chemotherapy in NSCLC.

Clinical Features and Predictors of Dysplasia in Proximal Sessile Serrated Lesions

Yi Yuan Tan,Gary Sei Kiat Tay,Yu Jun Wong,James Weiquan Li,Andrew Boon Eu Kwek,Tiing-Leong Ang,Lai Mun Wang,Malcolm Teck Kiang Tan 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.4

Background/Aims: Proximal colorectal cancers (CRCs) account for up to half of CRCs. Sessile serrated lesions (SSLs) are precursorsto CRC. Proximal location and presence of dysplasia in SSLs predict higher risks of progression to cancer. The prevalence of dysplasiain proximal SSLs (pSSLs) and clinical characteristics of dysplastic pSSLs are not well studied. Methods: Endoscopically resected colonic polyps at our center between January 2016 and December 2017 were screened for pSSLs. Data of patients with at least one pSSL were retrieved and clinicopathological features of pSSLs were analysed. pSSLs with andwithout dysplasia were compared for associations. Results: Ninety pSSLs were identified, 45 of which had dysplasia giving a prevalence of 50.0%. Older age (65.9 years vs. 60.1 years,p=0.034) was associated with the presence of dysplasia. Twelve pSSLs were 10 mm or larger. After adjusting for age, pSSLs ≥10 mmhad an adjusted odds ratio of 5.98 (95% confidence interval, 1.21–29.6) of having dysplasia compared with smaller pSSLs. Conclusions: In our cohort of pSSLs, the prevalence of dysplasia is high at 50.0% and is associated with lesion size ≥10 mm. Endoscopic resection for all proximal serrated lesions should be en-bloc to facilitate accurate histopathological examination fordysplasia as its presence warrants shorter surveillance intervals.

Plasma electrolytic oxidation coatings on AZ31 magnesium alloys with addition of MoS₂ particles

Yi-Yuan LIN,Jyh-Wei LEE,Chuan-Ming TSENG,Bih-Show LOU 한국진공학회 2016 한국진공학회 학술발표회초록집 Vol.2016 No.8

A novel computer vision-based vibration measurement and coarse-to-fine damage assessment method for truss bridges

Yi-Qing Ni,Wen-Qiang Liu,En-Ze Rui,Lei Yuan,Si-Yi Chen,You-Liang Zheng 국제구조공학회 2023 Smart Structures and Systems, An International Jou Vol.31 No.4

To assess structural condition in a non-destructive manner, computer vision-based structural health monitoring (SHM) has become a focus. Compared to traditional contact-type sensors, the advantages of computer vision-based measurement systems include lower installation costs and broader measurement areas. In this study, we propose a novel computer vision-based vibration measurement and coarse-to-fine damage assessment method for truss bridges. First, a deep learning model FairMOT is introduced to track the regions of interest (ROIs) that include joints to enhance the automation performance compared with traditional target tracking algorithms. To calculate the displacement of the tracked ROIs accurately, a normalized cross-correlation method is adopted to fine-tune the offset, while the Harris corner matching is utilized to correct the vibration displacement errors caused by the non-parallel between the truss plane and the image plane. Then, based on the advantages of the stochastic damage locating vector (SDLV) and Bayesian inference-based stochastic model updating (BISMU), they are combined to achieve the coarse-to-fine localization of the truss bridge's damaged elements. Finally, the severity quantification of the damaged components is performed by the BI-SMU. The experiment results show that the proposed method can accurately recognize the vibration displacement and evaluate the structural damage.

Structure and Properties of Konjac Glucomannan/Galactoglucomannan Nanofiber Membrane

Yi Yuan,Xin Hong,Ruojun Mu,Jingni Gong,Lin Wang,Rongxun Huang,Jiayu Wu,Yongsheng Ni,Xianhui Wu,Jie Pang 한국고분자학회 2017 Macromolecular Research Vol.25 No.10

Konjac glucomannan (KGM)/galactoglucomannan (GGM) nanofiber membranes were obtained through electrospinning technology. Rheological properties of KGM/GGM solutions were observed by using a rotary rheometer. The apparent morphological, characteristic group and thermal stability of nanofiber membranes were studied through scanning electron microscopy (SEM), Fourier transform infrared spectoscopy (FTIR) and differential scanning calorimeter (DSC) respectively. The physical and mechanical properties were also evaluated. Results revealed that the addition of GGM did not significantly affect the rheological properties of electrospinning solution. Increase in the amount of GGM in the nanofiber membrane resulted in gradual smoothening, uniformity and decrease in the number of nodes. KGM interacts with GGM through hydrogen-bond. Addition of GGM markedly enhanced the thermal stability, physical and mechanical properties of the nanofiber membrane. The study showed that the KGM/GGM nanofiber membrane have good potential for use in developing membrane based materials.