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Chinese Chemical Letters 2014年第10期25卷 1403-1406页

作者： xiao-Dong Xia Tian-Lun Wang xiao-yuan yuan Key Laboratory of Theoretical Chemistry and Molecular Simulation Minister of EducationSchool of Chemistry and Chemical EngineeringHunan University of Science and Technology

Silver nanoplates as novel optical sensors for Cu^2＋ detection have been *** nanoplates are synthesized via previous H_2O_2-NaBH_4 cyclic oxidation-reduction *** introduction of ascorbate as mild reductants,Cu^2＋ ions are reduced into Cu~＋ and the Cu^＋ is further reduced to Cu,which is deposited on the surface of the silver *** deposition of the Cu on the surface of the silver nanoplates allows a significant red-shift of their plasmon ***,trace Cu^2＋ can be *** shift of the plasmon absorption wavelength of silver nanoplates is proportional to the Cu^2＋concentration over a range of 40-340 μmol L^（-1） with a limit of detection of 9.0 μmol L^（-1）.Moreover,such silver nanoplate-based optical sensors provide good selectivity for Cu^2＋ detection,and most other metal ions do not disturb its ***,the practicality of the proposed sensor was *** Cu^2＋assay is advantageous in its simplicity,selectivity,and cost-effectiveness.

关键词： Silver nanoplate Plasmon absorption Wavelength shift Optical sensor Copper ions Ascorbate

Streptozotocin-induced expression of Ngn3 and Pax4 in neonatal rat pancreatic α-cells

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World Journal of Gastroenterology 2011年第23期17卷 2812-2820页

作者： xiao-Di Liang yuan-yuan Guo Ming Sun Ying Ding Ning Wang Li yuan Wei De Department ＆Biochemistry and Mo-lecular Biology Nanjing Medical University Nanjing 210029Jiangsu Province China

AIM： To investigate the mechanism behind β-cell regeneration in neonatal rat pancreas treated with strep- tozotocin （STZ）. METHODS： Neonatal Sprague Dawley rats were intra- peritoneally injected with 70 mg/kg STZ. Body weight, pancreas weight and blood glucose were recorded every two days after the treatment. To identify the expression and location of transcription factors in the rat pancreas, double immunofluorescent staining was performed using antibodies to specific cell markers and transcription factors. RESULTS： Expression of Neurogenin 3 （Ngn3）, a marker for endocrine precursor cells, was observed by immunofluorescence in a few β-cells and many a-cells. The expression reached a peak 12 d after treatment. Pax4, a transcription factor that lies downstream of Ngn3 and plays an important role in β-cell differentiation, was also expressed in the α-cells of STZ-treated rats. We did not observe significant changes in Nkx6.1, which is essential for β-cell maturation in the treated rats. CONCLUSION： α-cells dedifferentiated into endocrine precursor cells and acquired the ability to dedifferentiate in the neonatal rat pancreas after STZ treatment.

关键词： Pancreatic remodeling Dedifferentiation Endocrine precursor cells Streptozotocin Transcriptionfactors

Observation of the Curative Effect of the Dexamethasone Vitreous Cavity Implant for the Treatment of Irvine-Gass Syndrome

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Biomedical and Environmental Sciences 2023年第8期36卷 725-731页

作者： MAO Yu GAO Li Qin JIA Li Yun HOU Si Meng xiao yuan yuan JI Xi Wen WANG Shuang Beijing Tongren Eye Center Beijing Ophthalmology and Visual Science Key LabBeijing Tongren HospitalCapital Medical UniversityBeijing 100730China Beijing Institute of Ophthalmology Beijing Tongren Eye CenterBeijing Ophthalmology and Visual Science Key LabBeijing Tongren HospitalCapital Medical UniversityBeijing 100730China

Objective To investigate the clinical efficacy of dexamethasone vitreous cavity implants(Ozurdex)for the treatment of macular edema(Irvine-Gass Syndrome)after cataract *** Eight patients(eight eyes)with Irvine-Gass syndrome were enrolled for vitreous injections with *** patients included six men(six eyes)and two women(two eyes)with a mean age of 67.12±11.92 *** in the patients best-corrected visual acuity(BCVA),central macular thickness(CMT),and intraocular pressure were compared before and after *** The mean visual acuity BCVA of the patients was 0.81±0.26 before implantation,which improved to 0.20±0.12,0.13±0.09,and 0.15±0.13 at 2 weeks,1 month,and 3 months after implantation,respectively(P<0.001).The patient’s mean CMT before implantation was 703.00±148.88μm,and it reduced to 258.87±37.40μm,236.25±28.74μm,and 278.00±76.82μm at 2 weeks,1 month,and 3 months after implantation,respectively(P<0.001).Conclusion The dexamethasone vitreous cavity implant(Ozurdex)is a safe and effective treatment,which can effectively improve patient’s visual acuity and reduce macular edema associated with cataract surgery.

关键词： Irvine-Gass Syndrome Macular edema Dexamethasone Vitreous injection

Experimental study on the through-thickness properties of structural steel thick plate and its heat-affected zone at low temperatures

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2015年第3期16卷 217-228页

作者： yuan-qing WANG xiao-wei LIAO yuan-yuan ZHANG Yong-jiu SHI Key laboratory of Civil Engineering Safety and Durability of China Education Ministry Department of Civil Engineering Tsinghua University Beijing 100084 China

Lamellar tearing and crack-induced brittle failures along steel plates in the through-thickness direction seriously threaten the safety and reliability of steel thick plate structures in construction and service, especially at low ambient temperatures. Three kinds of tests, including uniaxial tensile tests, Charpy V-Notch impact tests, and three-point bending （TPB） tests were performed at normal and low temperatures to investigate the through-thickness mechanical properties, impact and fraclure toughness of Q345B structural steel plates with thicknesses from 60 to 165 mm. The test specimens were mainly sampled along the through-thickness direction of the plate, but transverse specimens along the rolling direction were also involved. The ductility index （percentage reduction of area）, impact toughness index （Charpy impact energy）, and fracture toughness index （critical crack tip opening displacement （CTOD） values） all decrease as the temperature declines. All the mechanical properties and the impact and fracture toughness along the through-thickness direction are worse than those along the rolling direction. The results also offer experimental support for the determination of an evaluation indicator for structural steel thick plates with through-thickness characteristics.

关键词： Structural steel thick plate Through-thickness properties Mechanical properties Impact toughness Fracturetoughness Low temperature

Acupuncture and Medicated Oxygen Therapy for Multiple Infarctional Dementia

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Journal of Acupuncture and Tuina Science 2003年第1期1卷 28-29页

作者： HOU An-le WANG Lei BO yuan xiao yuan-chun TCM Hospital of Xuzhou Municipality Jiangsu 221009 China TCM Hospital of Xuzhou Municipality Jiangsu 221009 China TCM Hospital of Xuzhou Municipality Jiangsu 221009 China

Purpose To observe the clinical efficacy of acupuncture and medicated oxygen therapy in the treatment of multiple infarctional dementia (MID).Methods 150 cases of MID were randomized into three groups: group A in which 50 cases were treated by acupuncture and medicated oxygen, group B in which 50 cases were treated by acupuncture and inhaled oxygen and group C in which 50 cases were simply treated by *** The clinical effects were obviously better in group A than those in group B and group C (Pxiao yuan-chun

关键词： Dementia, Multi-infarct Acupuncture-moxibustion Acupuncture Medication Combined

The Influence of Fluctuated Soil Moisture on Growth Dynamic of Winter Wheat

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Agricultural Sciences in China 2002年第1期1卷 56-63页

作者： CHEN xiao-yuan and LUO yuan-pei( Institute of Resources and Environments, China Agricultural University, Beijing 100094 Agrometeorology Institute, Chinese Academy of Agricultural Sciences, Beijing 100081 ) Institute of Resources and Environments China Agricultural University Beijing 100094 Agrometeorology Institute Chinese Academy of Agricultural Sciences Beijing 100081

Glasshouse and laboratory tests were carried out in 1996 - 1998 using winter wheat cultivars Beinong 6 as materials. The growth dynamics of the whole-wheat plant were analysed under constant and fluctuated soil water condition. The results revealed that water stress made the starting time of crop greatest growth phase(STCGGP) in advance, prolonged crop greatest growth phase(CGGP), decreased the rate of crop greatest growth (CGGR or CGRm), and as a result, the rate of dry matter accumulation was reduced and the growth of the crop was slowed down. Rewatering delayed STCGGP, shortened CGGP, increased CGGR, thus, the rate of dry matter accumulation had been boosted and the growth of the crop was accelerated. The growth rate, dry matter weight and grains yield of winter wheat were almost equal to the well-watered controls if they were rewatered under the condition of moderate water stress during the jointing stage.

关键词： Winter wheat Soil moisture Growth dynamics

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改革开放40年江苏民族声乐发展脉络研究

艺术百家 2019年第6期37卷 114-121页

作者：肖园园江苏第二师范学院音乐学院

改革开放40年来,江苏民族声乐在“全国上下一盘棋”的态势下,表现出不同时间节点发展上的一些共性特征,同时又在作品创作、唱法技巧、教育教学、理论研究等方面体现出一定的地域化发展格局。自1978年至上世纪整个20世纪80年代,江苏民族... 详细信息

改革开放40年来,江苏民族声乐在“全国上下一盘棋”的态势下,表现出不同时间节点发展上的一些共性特征,同时又在作品创作、唱法技巧、教育教学、理论研究等方面体现出一定的地域化发展格局。自1978年至上世纪整个20世纪80年代,江苏民族声乐继往开来,在承继已有历史积淀的基础上,得以全面复兴,创作了大量富有地方特色的民族声乐作品,培育了一批质量较高的民族声乐人才,理论研究方面也有一定建树;20世纪90年代,受经济转型发展的刺激,江苏民族声乐进入快速发展期:音乐作品创作的艺术性程度更高,民族声乐教育更加专业化和高层次化,中西融合的演唱技术更加明确和系统化,民族声乐进入内涵发展期;进入新世纪,江苏民族声乐渐趋摆脱了民美、民通、美通等唱法探索的瓶颈,重新回至民族声乐的源头上进行冷静思考,扬弃性地迈入多元发展期,在追求个性化演唱风格和培养个性化演唱人才方面积累了宝贵的经验。

关键词：音乐艺术改革开放40年江苏民族声乐发展脉络

Oxygen vacancies enriched Ir/WOx catalysts for the directly chem-catalytic conversion of cellulose to ethanol

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Tungsten 2025年第1期7卷 88-99页

作者： Yu-Jing Weng Zhao-Ying Ding Ying-Chao Li yuan-Feng Wu yuan-Yang Xu Rui Chen xiao-Lei Zhao Hai-Yong Wang Da-Lei Zhang Yu-Long Zhang Henan Key Laboratory of Coal Green Conversion and International Joint Laboratory of Coal Clean Utilization College of Chemistry and Chemical Engineering Henan Polytechnic University Key Laboratory of Renewable Energy Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Liaoning Institute of Energy Technology

Tungsten and its oxides are highly versatile catalysts with unique properties that hold great promise for a wide array of applications,including biological pathways and chemical *** chemo-catalysis of cellulose to ethanol presents a promising avenue for ethanol synthesis with the potential for enhanced efficiency compared to conventional methods,offering a sustainable and carbon-neutral alternative to existing petrochemical and biological ***,Ir/WOxcatalysts enriched with oxygen vacancies were meticulously prepared and demonstrated remarkable catalytic performance in converting cellulose to ethanol directly in the presence of tungstic *** catalyst achieved a high ethanol yield of 66.5%under optimal reaction conditions,approaching the theoretical yield limit of traditional ethanol *** results revealed the presence of oxygen defects,Bronsted/Lewis acidity,and Ir nanoclusters on the catalyst surface,working synergistically to facilitate the cascade catalysis of cellulose hydrolysis,sugar retro-aldol condensation reaction,and C2 intermediate hydrodeoxygenation to *** situ Fourier transform infrared spectrometer analysis confirmed the catalyst's ability to enhance the adsorption and activation of ethylene glycol for ethanol *** manipulating subtle structural features,this study offers a fresh perspective on tungsten group catalyst design and underscores the importance of synergistic effects among catalytic sites for the efficient production of ethanol from cellulose.

关键词： Cellulosic ethanol Chem-catalysis Hydrogenolysis Retro-aldol condensation Tungsten

Study to mechanism of fluorescence enhancement of Dy3＋-Gd3＋- SSA-CTMAB system by resonance scattering-light spectroscopy

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Journal of Chemistry and Chemical Engineering 2009年第12期3卷 1-6,14页

作者： SA Pan-pan LIU xiao-yan YAO yuan-yuan ZHENG Zhi-gang ZHANG xiao-wei YIN Hong-zong College of Chemistty and Material Science Shandong Agricultural University Taian 271018 China

The fluorescence enhancement mechanism of Dy3＋-Gd3＋- SSA-CTMAB system was studied by the resonance light scattering and fluorescence spectrum. In this paper, the influencing factors including the concentration of Gd3＋, ligands, pH value as well as surfactants were studied. As a result, the optimal experimental conditions were obtained. The existence of molecule congeries was proved by scattering-light spectrum.

关键词： dysprosium gadolinium sulfonic salicylic acid (SSA) hexadecyl trimethyl ammonium bromide (CTMAB) fluorescent spectroscopy resonance scattering- light spectroscopy fluorescence enhancement

Innovative dual-mode device integrating capacitive desalination and solar vapor generation for high-efficiency seawater desalination

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Journal of Energy Chemistry 2025年第1期100卷 171-179页

作者： Jiacheng Wang Zhaoyu Chen Ruduan yuan Jiaxin Luo Ben Zhang Keju Ji Meng Li Juanxiu xiao Kuan Sun National Innovation Center for Industry-Education Integration of Energy Storage Technology MOE Key Laboratory of Low-grade Energy Utilization Technologies and SystemsCollege of Energy & Power Engineering Chongqing University Xuefeng Mountain Energy Equipment Safety National Observation and Research Station CQU-NUS Renewable Energy Materials & Devices Joint Laboratory Chongqing University Southwest Technology and Engineering Research Institute Jiangsu Provincial Key Laboratory of Bionic Functional Materials College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University

Solar-driven interface evaporation with high solar-to-steam conversion efficiency has shown great potential in seawater ***,due to the influence of latent heat and condensation efficiency,the water yield from solar-driven interface evaporation remains insufficient,posing a significant challenge that requires *** this work,we designed a dual-mode high-flux seawater desalination device that combines solar-driven interface evaporation and capacitive *** utilizing coupled desalination materials exhibiting both photothermal conversion and capacitance activity,the device demonstrated photothermal evaporation rates of 1.41 and 0.97 kg m-2h-1for condensate water yield under one-sun ***,the device exhibited a salt adsorption capacity of up to48 mg g-1and a salt adsorption rate of 2.1 mg *** addition,the salt adsorption capacity increased by approximately 32% under one-sun ***,photo-enhanced capacitive desalination performance was explored through numerical simulations and theoretical *** calculations and characterizations confirmed that the defect energy levels formed by the introduction of sulfur vacancies can effectively widen the light absorption range,improve photothermal conversion performance,and stimulate more photoelectrons to participate in capacitive ***,the electron distribution state of molybdenum disulfide with sulfur vacancies and surface defect sites contributes to ion/electron transport at the solid-liquid *** work provides a novel pathway for integrating solar vapor generation with other low-energy desalination technologies.

关键词： Desalination