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Three-dimensional thermohaline anomaly structures of rings in the Kuroshio Extension region

Acta Oceanologica Sinica 2020年第3期39卷 25-35页

作者： ya’nan ding Chunsheng Jing Third Institute of Oceanography Ministry of Nature ResourcesXiamen 361005China

Using AVISO satellite altimeter observations during 1993–2015 and a manual eddy detection method, a total of 276 anticyclonic rings and 242 cyclonic rings shed from the Kuroshio Extension(KE) were identified, and their three-dimensional(3D) anomaly structures were further reconstructd based on the Argo float data and the Japan Agency for Marine-Earth Science and Technology(JAMSTEC) cruise and buoy data through an interpolation method. It is found that the cyclonic(anticyclonic) rings presented consistent negative(positive) anomalies of potential temperature;meanwhile the relevant maximum anomaly center became increasingly shallow for the cyclonic rings whereas it went deeper for the anticyclonic rings as the potential temperature anomaly decreased from the west to the east. The above deepening or shoaling trend is associated with the zonal change of the depth of the main thermocline. Moreover, the composite cold ring between 140° and 150°E was found to exhibit a double-core vertical structure due to the existence of mode water with low potential vorticity. Specifically, a relatively large negative(positive) salinity anomaly and a small positive(negative) one appeared for the composite cyclonic(anticyclonic) ring at the depth above and below 600 m, respectively. The underlying driving force for the temperature and salinity anomaly of the composite rings was also attempted, which varies depending on the intensity of the background current and the temperature and salinity fields in different areas of the KE region, and the rings’ influences on the temperature and salinity could reach deeper than 1 000 m on average.

关键词： Kuroshio Extension pinched-off ring thermohaline anomaly three-dimensional structure composite eddy

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Solution-processed rare-earth thulium oxide with high permittivity for low-voltage transistor and inverters applications

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Journal of Rare Earths 2024年第8期42卷 1604-1609,I0007页

作者： Daiming Liu Fei Wang Yongtao Zhang ya'nan ding Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon-Materials College of Electromechanical EngineeringQingdao University of Science&TechnologyQingdao266061China College of Electronic and Information Engineering Shandong University of Science and TechnologyQingdao266590China

The use of high-permittivity(high-k) thin films as gate dielectrics is essential in the development of lowpower electronics,In this work,rare-earth thulium oxide(Tm_(2)O_(3)) thin films were prepared by a facile solution process and annealed at various temperatures from 400 to 700℃.The evolution of the physical and dielectric properties of Tm_(2)O_(3) thin film with annealing temperature was *** is demonstrated that the Tm_(2)O_(3) thin film annealed at 600℃ exhibits the optimal performance,including a low leakage current of 3×10^(-10) A/cm^(2),a large areal capacitance of 250 nF/cm^(2) at 100 Hz,and a high permittivity value of *** Tm_(2)O_(3) thin film as a gate insulator was integrated into the thin film transistor(TFT) employing In_(2)O_(3)-based semiconducting *** In_(2)O_(3) TFT with 600℃-annealed Tm_(2)O_(3) dielectric exhibits the superior perfo rmance,with a high I_(on)/I_(off) of 1.65×10^(7),a small subthre shold swing(SS) value of 0.2 V/dec,a V_(TH) of+1.8 V,and a mobility of 1.68 cm^(2)/(V·s).Furthermore,an inverter constructed by connecting the TFT with a resistor exhibits full-swing *** work provides a facile and appealing method for preparing the high-k Tm_(2)O_(3) thin films as alternative gate dielectrics with the potential for use in low-power electronics and logic circuit applications.

关键词： Rare earths Tm_(2)O_(3) Dielectric Transistor Inverter

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Fracture morphologies of a hot stamped steel and comparisons with several sheet metals

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Journal of Iron and Steel Research International 2017年第6期24卷 634-640页

作者： Shu-lin Tan Kun yang ya-nan ding Xian-hong Han Department of Plasticity Technology Shanghai Jiao Tong University Shanghai 200030 China Institute of Chemical Material China Academy of Engineering Physics Mianyang 621900 Sichuan China Department of Civil and Environmental Engineering Northwestern University Evanston 60208 Illinois USA

Hot stamping has been widely used in car industry to produce safety components. Most existing re- searches focused on the stamping and quenching process, but less on the mechanical properties of stamped parts. The fracture behaviors of hot stamped boron steel B1500HS have been studied, and other four commonly used sheet metals with different strengths, including Q235, TRIP780, QP980 and MS1300, were also introduced for comparison. Both uniaxial tests and mechanical trimming tests were performed, and the fracture surfaces under different stress states were observed and discussed. The SEM observations showed that the fracture models are closely related to the stress states, i. e., the tensile surfaces have ductile rupture characters while the trimming surfaces have brittle rupture characters. Compared with other steels, the quenched boron steel has smaller dimple size accompa- nied by shear planes in the tensile surface, and has smaller burnish zone in the trimming surface, and its cutting surface with ＇S＇ like shape is also very different with others. Furthermore, two fitted em pirical models were derived to describe the quantitative correlations between the average dimple diam- eter and the steel strength and between the percentage of burnish zone and the steel strength.

关键词： Hot stamped steelFracture morphologyTensile testMechanical trimming testSteel comparison

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Palladium-Catalyzed One-Step Synthesis of Stereodefined Difunctionalized Glycals

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CCS Chemistry 2023年第3期5卷 741-749页

作者： Xiao-Ping Gong Yuke Li Hong-Chao Liu Zhe Zhang Zhi-Jie Niu ya-nan ding yang An Xi Chen yan-Chong Huang Rui-Qiang Jiao Xue-Yuan Liu Yong-Min Liang State Key Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhou 730000 Department of Chemistry Centre for Scientific Modeling and ComputationChinese University of Hong KongShatinHong Kong 999077

Efficiently modifying glycals by directly introducing functional groups into their double bonds is a longstanding ***,the strategy of introducing two different functional groups into 1-iodoglycals to obtain modified glycals in one step through palladium catalysis was reported for the first time,and the modified glycals contained stereodefined tetrasubstituted *** this method,various difunctionalized glycals that were difficult to form by other routes were synthesized in moderate to good *** experiments and density functional theory calculations show that the palladium catalyst played dual roles in this transformation,namely,inducing nucleophilic substitution and catalyzing Suzuki *** reaction intermediate was isolated and confirmed by X-ray crystallographic ***,the gram-scale synthesis and facile deprotection of the target compound enhances the practicality of this strategy.

关键词： palladium catalysis glycals tetrasubstitute olefins difunctionalization stereodefined threecomponent

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聚丙烯微孔膜的研究进展

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现代化工 2004年第10期24卷 19-22页

作者：臧亚南丁恩勇中国科学院广州化学研究所纤维素化学重点实验室

介绍了由熔融纺丝-冷却拉伸法和热致相分离法制备聚丙烯微孔膜的原理和过程。对当前膜研究领域的热点即膜的亲水化改性研究进行了重点评述,包括暂时性改性和永久性改性。阐述了各种改性方法的特点,着重讨论了亲水化改性对膜性能如膜的... 详细信息

介绍了由熔融纺丝-冷却拉伸法和热致相分离法制备聚丙烯微孔膜的原理和过程。对当前膜研究领域的热点即膜的亲水化改性研究进行了重点评述,包括暂时性改性和永久性改性。阐述了各种改性方法的特点,着重讨论了亲水化改性对膜性能如膜的微孔孔径、孔隙率、透水量等的影响,强调膜表面亲水性的提高可改善膜的耐生物污染性。指出聚丙烯微孔膜的应用领域和发展前景。

关键词：聚丙烯微孔膜亲水性

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Molecular mechanism of pancreatic ductal adenocarcinoma:The heterogeneity of cancer-associated fibroblasts and key signaling pathways

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World Journal of Clinical Oncology 2025年第2期16卷 18-28页

作者： Zhong-Yuan Hu ding ding Yu Song ya-Feng Deng Cheng-Ming Zhang Tao Yu First School of Clinical Medicine Shaanxi University of Chinese MedicineXianyang 712000Shaanxi ProvinceChina College of Acupuncture and Massage Shaanxi University of Chinese MedicineXianyang 712000Shaanxi ProvinceChina Graduate School Guangzhou University of Chinese MedicineGuangzhou 510000Guangdong ProvinceChina Digestive Department I Shaanxi Provincial Hospital of Traditional Chinese MedicineXi’an 710000Shaanxi ProvinceChina

Pancreatic ductal adenocarcinoma stands out as an exceptionally fatal cancer owing to the complexities associated with its treatment and diagnosis,leading to a notably low five-year survival *** study offers a detailed exploration of epidemiological trends in pancreatic cancer and key molecular drivers,such as mutations in CDKN2A,KRAS,SMAD4,and TP53,along with the influence of cancer-associated fibroblasts(CAFs)on disease *** particular,we focused on the pivotal roles of signaling pathways such as the transforming growth factor-βand Wnt/β-catenin pathways in the development of pancreatic cancer and investigated their application in emerging therapeutic *** study provides new scientific perspectives on pancreatic cancer treatment,especially in the development of precision medicine and targeted therapeutic strategies,and demonstrates the importance of signaling pathway research in the development of effective therapeutic *** studies should explore the subtypes of CAFs and their specific roles in the tumor microenvironment to devise more effective therapeutic methods.

关键词： Pancreatic cancer Fibroblasts Signaling pathways Tumor microenvironment

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骨髓干细胞定向分化为肝样细胞的研究进展

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世界华人消化杂志 2008年第6期16卷 658-662页

作者：刘志锋行治国丁亚楠陈强潘兴华中国人民解放军成都军区昆明总医院干细胞与组织器官工程研究中心昆明医学院昆明总医院临床学院云南省昆明市650032

近年来研究表明,在适宜的微环境下,骨髓干细胞不但可以分化为骨、软骨、脂肪、肌细胞和各种血细胞,而且还可以跨越胚层向外胚层起源的神经元细胞及内胚层起源的肝细胞、胰岛细胞等分化,称为"可塑性(plasticity)"或"横向分化(trans- diff... 详细信息

近年来研究表明,在适宜的微环境下,骨髓干细胞不但可以分化为骨、软骨、脂肪、肌细胞和各种血细胞,而且还可以跨越胚层向外胚层起源的神经元细胞及内胚层起源的肝细胞、胰岛细胞等分化,称为"可塑性(plasticity)"或"横向分化(trans- diffferentiation)".本文就骨髓干细胞分化为肝样细胞及其临床治疗肝系疾病做一综述.

关键词：骨髓干细胞细胞分化细胞移植肝病

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中药穴位敷贴对心肌缺血大鼠心肌酶的影响

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上海中医药大学学报 2001年第3期15卷 58-59页

作者：韩亚男李鼎上海市卫生局中医处，上海200002

为探讨益气活血中药穴位敷贴对大鼠心肌缺血的影响 ,采用皮下注射异丙肾上腺素建立大鼠心肌缺血模型 ,观察经中药贴剂或硝酸甘油贴膜分别贴敷膻中、心俞穴治疗后乳酸脱氢酶 (LDH)、肌酸激酶 (CK)的变化。结果 :治疗组的LDH1水平明显低... 详细信息

为探讨益气活血中药穴位敷贴对大鼠心肌缺血的影响 ,采用皮下注射异丙肾上腺素建立大鼠心肌缺血模型 ,观察经中药贴剂或硝酸甘油贴膜分别贴敷膻中、心俞穴治疗后乳酸脱氢酶 (LDH)、肌酸激酶 (CK)的变化。结果 :治疗组的LDH1水平明显低于模型组 (P 0 .0 5 )。

关键词：心肌缺血穴位敷贴冠心病益气活血中药贴剂

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肝纤维化的干细胞治疗进展

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世界华人消化杂志 2008年第29期16卷 3299-3302页

作者：丁亚楠潘兴华马丹朱向情庞荣清杨仁华中国人民解放军昆明总医院干细胞与组织器官工程研究中心云南省昆明市650032 昆明医学院昆明总医院临床学院云南省昆明市650031

近年来国内外研究表明,在个体发育的不同阶段及不同成体组织中均存在着干细胞.肝脏内不仅存在肝源性干细胞,还存在其他组织来源的干细胞(如骨髓干细胞,胰腺干细胞等),这些干细胞最终可以分化为成熟的肝样细胞.因此,干细胞的替代疗法为... 详细信息

近年来国内外研究表明,在个体发育的不同阶段及不同成体组织中均存在着干细胞.肝脏内不仅存在肝源性干细胞,还存在其他组织来源的干细胞(如骨髓干细胞,胰腺干细胞等),这些干细胞最终可以分化为成熟的肝样细胞.因此,干细胞的替代疗法为终末期肝病患者的肝纤维化治疗提供了新的思路.本文就近年来干细胞治疗肝纤维化方面的相关研究进展作一综述.

关键词：干细胞分化肝纤维化细胞治疗

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Flexible double narrowband near-infrared photodetector based on PMMA/core-shell upconversion nanoparticle composites

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Journal of Rare Earths 2022年第2期40卷 211-217,I0002页

作者： ya’nan Ji Donglei Zhou nan Wang nan ding Wen Xu Hongwei Song State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China

Flexible narrowband near infrared(NIR)photodetectors(PDs)are urgently in demand in the fastdeveloping era of flexible electronics,due to their crucial roles in various innovative ***,we designed and synthesized the core-shell structured NaYF4:Yb^(3+),Er^(3+)@NaYF4:Nd^(3+)upconversion nanoparticles(UCNPs),which can be pumped by the 808 and 980 nm *** upconversion luminescence(UCL)are significantly enhanced after being assembled with the opal photonic crystals(OPCs)due to the photonic crystal effect,with 55 and 48 folds of enhancement factors under illuminations of 808 and 980 nm lights,*** on this hybrid,the flexible narrowband PDs were successfully fabricated on the PET substrate with the structure of OPCs/NaYF4:Yb^(3+),Er^(3+)@Nd^(3+)/MAPbl3,which displays excellent detection performance to double narrowband NIR light(808 and 980 nm)benefiting from the amplified UCL,with responsivity of 8.79 and 7.39 A/W,detectivity of 3.01×10^(11)and2.68×10^(11)cm·Hz^(1/2)/W for 808 and 980 nm lights detection respectively,along with short response time in the range of 120-160 ***,the OPCs/NaYF4:Yb^(3+),Er^(3+)@NaYF4:Nd^(3+)/MAPbI3 double narrowband PDs display low photodetection power threshold(0.05 W/cm2),outstanding flexibility,prominent moisture resistance,and good long-time *** work displays a new concept of narrowband NIR PDs,which open a new field for specific NIR light detections.

关键词： Upconversion luminescence Upconversion enhancement Narrow-band near-infrared photodetection Flexible photodetectors Rare earths

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