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Optical properties of conductive silver-nanowire films with different nanowire lengths

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Nano Research 2017年第11期10卷 3706-3714页

作者： Xiaoming Yu Xuan Yu Jianjun Zhang liqiao chen Yunqian Long Dekun Zhang Innovation Application Institute Zhejiang Ocean University Zhoushan 316004 China College of Electronic Information and Optical Engineering Nankai University Tianjin 300071 China

Transparent electrodes made of silver nanowires （Ag NWs） exhibit a higher flexibility than conventional indium tin oxide *** this reason,Ag NWs may find applications in future flexible electronic and optoelectronic ***,different optoelectronic devices have different specific requirements for Ag *** example,the optical transmittance haze is an important but rarely studied aspect of Ag NW *** this study,the optical transmittance and optical scattering of long （5-50 μm,L-NWs） and short （1-20 μm,S-NWs） Ag NW films were *** L-NWs exhibited better optical transmission than the S-NWs,whereas the S-NWs exhibited better light-scattering properties than the *** results indicate that the L-NWs are suitable for touch-screen displays,whereas the S-NWs are better suited as transparent conductive films for solar *** analyzed the scattering ratio of forward-scattered light to backscattered light for both the L-NWs and S-NWs and discovered that the mesh size affected the scattering *** longer wavelengths,a larger mesh yielded a higher backscattering ratio,whereas a smaller mesh yielded a lower backscattering *** formulated an equation for calculating the reflection haze using the total reflection （Ag NWs/glass）,R and the reflection of glass,*** reflection haze of the S-NWs and L-NWs exhibited different trends in the visible-near-infrared *** omnidirectional scattering model for the Ag NWs was used to evaluate the Ag NW scattering *** results of this study have great significance for the evaluation of the performance of Ag NWs in optoelectronic devices.

关键词： transparent electrode silver nanowires transmittance haze factor forward scattering and backscattering reflection-haze factor

Facile shape and size-controlled growth of uniform magnetite and hematite nanocrystals with tunable properties

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Science China Chemistry 2011年第6期54卷 923-929页

作者： chen liqiao LIU WeiPing chen JiaLin YANG XianFeng LIU Jia FU XiongHui WU MingMei Key Laboratory of Bioinorganic and Synthetic Chemistry Ministry of Education' State Key Laboratory of Optoelectronic Materials and Technologies' School of Chemistry and Chemical Engineering Sun Yat-Sen (Zhongshan) University Guangzhou 510275 China State Key Lab of Advanced Technology for Comprehensive Utilization of Platinum Metals ' Kunming Institute of Precious Metals Kunming 650106 China

Monodispersed magnetite Fe3O4 and hematite α-Fe2O3 nanocrystals have been grown in co-solvents of alcohol and water. Either the shape or the size of the nanocrystals could be easily controlled. Both the phases and nanostructures have been characterized by powder X-ray diffraction patterns and electron microscopy. The magnetic and catalytic properties of these products were investigated and compared with each other. The obtained results clearly demonstrate that these iron oxide nanocrystals are soft ferromagnetic at room temperature and α-Fe2O3 has a more effective catalytic property on the thermal decomposition of ammonium perchlorate than Fe3O4. Based on the experimental data, it is proposed that the magnetic and catalytic properties of these nanocrystals are dependent not only on the size and shape, but also on the surface structure of the nanocrystals. The nanoplates with significant anisotropic nanostructure demonstrate a highly enhanced performance as compared to nanoparticles.

关键词： iron oxide nanocrystals growth properties

Spatial and temporal assessment of the initial pattern of phytoplankton population in a newly built coastal reservoir

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Frontiers of Earth Science 2016年第3期10卷 546-559页

作者： Xiangyu REN Kai YANG Yue CHE Mingwei WANG Lili ZHOU liqiao chen Shanghai Key Laboratory of Urbanization and Ecological Restoration East China Normal University Shanghai 200241 China School of Life Sciences East China Normal University Shanghai 200241 China

For decades, the main threat to the water security of a metropolis, such as the city of Shanghai, has been the rapidly growing demand for water and at the same time, the decrease in water quality, including eutrophica- tion. Therefore Shanghai shifted the preferred freshwater source to the Yangtze Estuary and constructed the Qingcaosha Reservoir, which is subject to less eutrophic water from the Yangtze River. To assess the population of phytoplankton for the first time in the newly built reservoir, this study improved an integrated method to assess the phytoplankton pattern in large-water-area reservoirs and lakes, using partial triadic analysis and Geographic Information Systems. Monthly sampling and monitoring from 10 stations in the reservoir from July 2010 to December 2011 were conducted. The study examined the common pattern of the phytoplankton population structure and determined the differences in the specific composition of the phytoplankton community during the transition period of the reservoir. The results suggest that in all but three sampling stations in the upper parts of Qingcaosha Reservoir, there was a strong common compromise in 2011. The two most important periods occurred from late summer to autumn and from winter to early spring. The former was characterized by the dominance of cyanobac- teria, whereas the latter was characterized by the dominance of both chlorophyta and diatoms. Cyanobac- teria （Microcystis spp. as the main genus） were the monopolistic dominant species in the summer after reservoir operation. The statistical analysis also indicated the necessity for regular monitoring to focus on the stations in the lower parts of the reservoir and on several limited species.

关键词： phytoplankton dynamics Partial Triadic Ana-lysis Geographic Information Systems management,Qingcaosha Reservoir Shanghai

Tolerance of Physocypria kraepelini (Crustacean, Ostracoda) to water-borne ammonia, phosphate and pH value

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Journal of Environmental Sciences 2009年第11期21卷 1575-1580页

作者： YU Na, chen Shimei, LI Erchao, chen Jiayan, chen liqiao School of Life Science, East China Normal University, Shanghai 200062, China [a]School of Life Science East China Normal University Shanghai 200062 China

This study evaluated the median lethal concentration （LC50） and safe concentration of water-borne ammonia, phosphate and pH value on Physocypria kraepelini, a freshwater Ostracoda with a static renewal test system. The results indicated that the LC50 values of ammonia for P. kraepelini were 1026.71, 859.98, 771.79 and 583.82 mg/L at 24, 48, 72 and 96 h exposure, respectively, and the safe concentration range of ammonia for the long-term survival of P. kraepelini was less than 58.38 mg/L. The safe range of pH value for the survival of P. kraepelini was from 6.59 to 7.61. P. kraepelini has a high tolerance to ammonia, phosphate and pH value which are the main environmental factors in the serious eutrophication water.

关键词： ammonium phosphate Physocypria kraepelini

Inhibition of pyruvate dehydrogenase kinase improves carbohydrate utilization in Nile tilapia by regulating PDK2/4-PDHE1αaxis and insulin sensitivity

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Animal Nutrition 2022年第4期11卷 25-37页

作者： Yuan Luo Wenhao Zhou Ruixin Li Samwel MLimbu Fang Qiao liqiao chen Meiling Zhang Zhen-Yu Du LANEH School of Life SciencesEast China Normal UniversityShanghai 200241China University of Dar Es Salaam Department of Aquaculture TechnologyDar Es Salaam 60091Tanzania UDSM-ECNU Joint Research Center for Aquaculture and Fish Biology(JRCAFB) Dar Es Salaam 60091Tanzania ECNU-UDSM Joint Research Center for Aquaculture and Fish Biology(JRCAFB) Shanghai 200241China

Pyruvate dehydrogenase kinases(PDKs)-pyruvate dehydrogenase E1αsubunit(PDHE1α)axis plays an important role in regulating glucose metabolism in ***,the regulatory function of PDKsPDHE1α axis in the glucose metabolism of fish is not well *** study determined whether PDKs inhibition could enhance PDHE1αactivity,and improve glucose catabolism in *** tilapia fingerlings(1.90±0.11 g)were randomly divided into 4 treatments in triplicate(30 fish each)and fed control diet without dichloroacetate(DCA)(38% protein,7% lipid and 45% corn starch)and the control diet supplemented with DCA,which inhibits PDKs through binding the allosteric sites,at 3.75(DCA3.75),7.50(DCA7.50)and 11.25 g/kg(DCA11.25),for 6 *** results showed that DCA3.75,DCA7.50 and DCA11.25significantly increased weight gain,carcass ratio and protein efficiency ratio(P<0.05)and reduced feed efficiency(P<0.05)of Nile *** investigate the effects of DCA on growth performance of Nile tilapia,we selected the lowest dose DCA3.75 for subsequent *** tilapia fed on DCA3.75significantly reduced the mesenteric fat index,serum and liver triglyceride concentration and total lipid content in whole fish,and down-regulated the expressions of genes related to lipogenesis(P<0.05)compared to the *** DCA3.75 treatment significantly improved glucose oxidative catabolism and glycogen synthesis in the liver,but significantly reduced the conversion of glucose to lipid(P<0.05).Furthermore,the DCA3.75 treatment significantly decreased the PDK2/4 gene and protein expressions(P<0.05),accordingly stimulated PDHE1αactivity by decreasing the phosphorylated PDHE1αprotein *** addition,DCA3.75 treatment significantly increased the phosphorylated levels of key proteins involved in insulin signaling pathway and glycogen synthase kinase 3β(P<0.05).Taken together,the present study demonstrates that PDK2/4 inhibition by using DCA promotes glucose utilization in Nile tilapia by activating PDHE1αan

关键词： Dichloroacetate Glucose utilization Insulin sensitivity Nile tilapia PDK2/4-PDHE1αaxis

New insights into the influence of myo-inositol on carbohydrate metabolism during osmoregulation in Nile tilapia (Oreochromis niloticus)

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Animal Nutrition 2022年第3期10卷 86-98页

作者： Jiahua Zhu liqiao chen Yuxing Huang Fan Zhang Jingyu Pan Erchao Li Jianguang Qin Chuanjie Qin Xiaodan Wang Laboratory of Aquaculture Nutrition and Environmental Health School of Life SciencesEast China Normal UniversityShanghai 200241China College of Science and Engineering Flinders UniversityAdelaideSA 5001Australia Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province Hainan Aquaculture Breeding Engineering Research CenterCollege of Marine SciencesHainan UniversityHaikou 570228China Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River Neijiang Normal UniversityNeijiang 641100China

A two-factor(23)orthogonal testwas conducted to investigate the effects of dietary myo-inositol(MI)on the osmoregulation and carbohydrate metabolism of euryhaline fish tilapia(Oreochromis niloticus)under sustained hypertonic stress(20 practical salinity units[psu]).6 diets containing either normal carbohydrate(NC,30%)or high carbohydrate(HC,45%)levels,with 3 levels(0,400 and 1,200 mg/kg diet)of MI,respectively,were fed to 540 fish under 20 psu for 8 *** MI supplementation significantly improved growth performance and crude protein content of whole fish,and decreased the content of crude lipid of whole fish(P<0.05).Curled,disordered gill lamella and cracked gill filament cartilage were observed in the gill of fish fed diets without MI *** ion transport capacity in gill was significantly improved in the 1,200 mg/kg MI supplementation groups compared with the 0 mg/kg MI groups(P<0.05).Moreover,the contents of Na^(+),K^(+),Cl^(-)in serum weremarkedly reduced with the dietary MI supplementation(P<0.05).The fish fed 1,200 mg/kg MI supplementation had the highest MI content in the gills and the lowest MI content in the serum(P<0.05).Additionally,the fish fed with 1,200 mg/kg MI supplementation had the highest MI synthesis capacity in gills and brain(P<0.05).Dietary MI markedly promoted the ability of carbohydrate metabolism in liver(P<0.05).Moreover,fish in the 1,200 mg/kg MI groups had the highest antioxidant capacity(P<0.05).This study indicated that high dietary carbohydrate would intensify stress,and impair the ability of osmoregulation in tilapia under a long-term hypersaline *** supplementation of MI at 1,200 mg/kg in the high carbohydrate diet could promote carbohydrate utilization and improve the osmoregulation capacity of tilapia under long-term hypertonic stress.

关键词： Myo-inositol Carbohydrate metabolism Osmoregulation Oreochromis niloticus

A comparison between benthic gillnet and bottom trawl for assessing fish assemblages in a shallow eutrophic lake near the Changjiang River estuary

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Journal of Oceanology and Limnology 2018年第2期36卷 572-586页

作者： LI Yalei LIU Qigen chen Liping ZHAO Lianjie WU Hao chen liqiao HUT Zhongjun Key laboratory of Freshwater Fishery Germplasm Resources Ministry of Agriculture Shanghai Ocean University Shanghai 201306 China Xinyang College of Agriculture and Forestry Xinyang 464000 China Nanjing Institute of Environmental Science Ministry of Environmental Protection Nanjing 210042 China School of Life Science East China Normal University Shanghai 200062 China

Two fishing methods including gillnetting and trawling to estimate attributes of fish assemblage were compared in Dianshan Lake from August 2009 to July 2010. Species composition dif fered significantly between the gears, with four significant contributors in gillnet catches and one in trawl catches. Trawling collected more proportions of benthic species by number and biomass than gillnetting. Size distribution was significantly influenced by fishing technique; gillnetting captured relatively less small-sized fishes and trawling captured less large-sized individuals. Trawling produced species richness closer to the one expected than gillnetting. On the whole, trawl catch was a quadratic polynomial function of gillnet catch and a significantly negative correlation was found between them, both of which varied as dif ferent polynomial functions of temperature. However, trawl and gillnet catches were significantly correlated only in one of five month groups. It is concluded that single-gear-based surveys can be misleading in assessments of attributes of fish assemblages, bottom trawling is a more ef fective gear for assessing fish diversity than benthic gillnetting, and using gillnet catches as an indicator of fish density depends on fishing season in the lake.

关键词： fishing gear expected species richness size structure catch per unit effort temperature

Preparation of Lead-free Thick-film Resistor Pastes

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贵金属 2012年第A01期33卷 111-116页

作者： LUO Hui LI Shihong LIU Jisong chen liqiao YING Xingang WANG Ke State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals Sino-platinum Metals Co.Ltd.Kunming 650106China

The preparation of lead-free thick-film resistors are reported:using RuO 2 and ruthenates as conductive particles,glass powders composed of B 2 O 3,SiO 2,CaO and Al2 O 3 as insulating phase,adding organic matter which mainly consists of ethyl cellulose and terpineol to form printable *** were fabricated and sintered by conventional screen-printing on 96%Al 2 O 3 substrates,and then sintering in a belt furnace.X-ray diffraction(XRD) and electron scanning microscopy(SEM) have been used to characterize the conductive *** resistors exhibit good refiring stability and low temperature coefficient of *** resistance spans from about 80Ω/□ to 600Ω/□.The resistors prepared are qualified for common use.

关键词： lead-free RuO2 thick-film resistor pastes

Complete mitochondrial genome of Cypridopsis vidua(Crustacea: Ostracoda) with a phylogenetic analysis of its position in the Pancrustacea

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Complete mitochondrial genome of Cypridopsis vidua(Crustacea...