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A Comparative Investigation of Dye-sensitized Titanium Dioxide(TiO_2) Nanorods Grown on Indium Tin Oxide(ITO) substrates by Direct and seed-Mediated Hydrothermal Methods

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Acta Metallurgica sinica(English Letters) 2016年第5期29卷 457-463页

作者： V.Chandrakala j.Annai joseph steffy Neena Bachan W.jothi jeyarani Tenzin Tenkyong j.Merline shyla Department of Physics Energy Nanotechnology Centre (ENTeC) Loyola Institute of Frontier Energy (LIFE)Loyola College

We report a comparative investigation of the characteristics of modified TiO2 nanorods grown on conducting indium tin oxide glass （/TO） substrates by two different hydrothermal methods： the direct method by which rutile TiOa nanorods were grown directly on plain ITO substrates and the seed-mediated one using which a thin film of anatase TiO2 seed layer was laid down by spin coating and annealing prior to the growth of TiO2 nanorods on it. Microstructural analysis of the samples using X-ray diffraction confirmed their rutile nature. The average crystallite size estimated using scherrer＇s formula was found to fall in the range of 11-17 nm in both cases. Field emission scanning electron microscopy revealed the nanorod morphologies of a dandelion arrangement in the case of directly grown ones and a proper vertical orientation in the case of the seed-mediated method. UV-Vis spectroscopy analysis of both the samples exhibited redshifts with intense absorption of visible radiation, and the seed-mediated one was found to possess an increased bandgap. The transport nature of the samples was characterized by significant increase in both dark and photocurrents. The results show that the dark and photocurrent values of the directly grown TiO2 nanorods were greater than those of the seed-mediated ones by - seven and five folds, respectively, and therefore, it could serve as efficient photoelectrodes in dye-sensitized solar cells.

关键词： Dye-sensitized solar cells Hydrothermal seed-mediated Photoconductivity spin coating safranine 0 dye Ti02 nanorods

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Evaluation of ventilation performance and energy efficiency of greenhouse fans

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International journal of Agricultural and Biological Engineering 2015年第1期8卷 103-110页

作者： Zhang Zhi Richard s Gates Zou Zhirong Hu Xiaohui College of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100China Department of Agriculture and Biological Engineering University of Illinois at Urbana-Champaign61801USA College of Horticulture Northwest A&F UniversityYangling 712100China

In order to investigate fan performance in fan-ventilated greenhouses(Urbana,UsA),the effects of guard screen and loose belts on fan ventilation airflow and power consumption in greenhouse operations were examined with four belt-driven fans as trial *** Fans Assessment Numeration system was used to measure the airflow ***,relative humidity and power consumption were also *** show there were significant differences in the airflow rate between the fans with a cleaned and uncleaned guard screen(Psumption also differed significantly even with the same cooling effect in *** fan belts were adjusted to the proper tension,the fan speed and airflow rate were 13.1% and 30.1% higher than those of original belts,*** daily average power consumption for the fan with the original loose belts was 20.4% higher than that with the adjusted belts when the pad was not working and 24.2% higher with pad *** ventilation performance of fans with identical specifications showed a variation by up to 13.0% in terms of the ventilating efficiency *** results demonstrated that fans should be cleaned routinely,and belt tension should be checked to ensure that fan performance meets *** can reduce the power consumption in greenhouses for environmental ***,reordering fan staging,so that the most efficient fans are used in areas of greatest demand,can also reduce ventilation energy costs.

关键词： greenhouse fan performance airflow rate power consumption efficiency ratio

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Evaluation of the Electroslag Remelting Process in Medical Grade of 316LC stainless steel

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journal of Materials science & Technology 2009年第5期25卷 592-596页

作者： s.Ahmadi H.Arabi A.shokuhfar A.Rezaei Institute of Advanced Technologies for Metallic Materials Tarbiat Modares University Center of Excellence of Advanced Materials and Processing(CEAMP) Department of Metallurgy and Materials Science and EngineeringIran University of Science&Technology(IUST) Department of Material science Faculty of Mechanical EngineeringK.N.Toosi University of Technology

This study is focused on the effects of electroslag remelting by prefused slag （CaO, Al2O3, and CaF2） on macrostructure and reduction of inclusions in the medical grade of 316LC （316LVM） stainless steel. Analysis of the obtained results indicated that for production of a uniform ingot structure during electroslag remelting, shape and depth of the molten pool should be carefully controlled. High melting rates led to deeper pool depth and interior radial solidification characteristics, while decrease in the melting rates caused more reduction of nonmetallic inclusions. Large shrinkage cavities formed during the conventional casting process in the primary ingots were found to be the cause of the fluctuation in the melting rate, pool depth and extension of equiaxed crystals zone.

关键词： Ultra clean steel Electroslag Radial solidification remelting Prefused slag Vertical solidification

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HIV protease:late action to prevent immune detection

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signal Transduction and Targeted Therapy 2021年第5期6卷 1408-1409页

作者： Konstantin M.j.sparrer Frank Kirchhoff Institute of Molecular Virology Ulm University Medical CenterUlmGermany

A recent study published in science by Wang and colleagues shows that premature activation of the HIV-1 protease leads to caspase activation and recruitment domain 8(CARD8)inflammasome-mediated pyroptosis of infected macrophages and CD4+T cells(Fig.1).These findings might help to improve approaches aiming to eliminate the latent viral reservoirs upon HIV-1 *** invading viral pathogens trigger the innate immune system and are usually rapidly controlled and eventually *** sense viral intruders via so-called pattern recognition receptors(PRRs)capable of detecting pathogen-associated molecular patterns(PAMPs)allowing discrimination between self and *** many cases,these patterns are viral nucleic acids that show pathogen-specific structures or emerge at the wrong localization in the ***,activation of PRRs by their respective ligands leads to the induction of various anti-viral signaling cascades,among them the inflammasome.

关键词： eventually action eliminate

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Tracing the failing heart: dual genetic fate mapping for target identification

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signal Transduction and Targeted Therapy 2023年第9期8卷 3880-3882页

作者： Yaw Asare Christian stoppe jürgen Bernhagen Institute for stroke and Dementia Research(IsD) Klinikum der Universität München(KUM)Ludwig-Maximilian-University(LMU)81377 MunichGermany Department of Anesthesiology Intensive CareEmergency and Pain MedicineUniversity Hospital Würzburg97080 WürzburgGermany Department of Cardiac Anesthesiology and Intensive Care Medicine German Heart Center CharitéBerlin13353 BerlinGermany Munich Cluster for systems Neurology 81377 MunichGermany Munich Heart Alliance 80802 MunichGermany

In a recent study published in Nature Genetics,1 Han and colleagues employed a dual genetic lineage tracing approach in combination with a model of heart failure(HF)to identify a key sub-population of endocardium-derived fibroblasts,which gives rise to excessive myofibroblast formation in a Wnt pathway-mediated manner and contributes to cardiac fibrosis.1 The identified fibroblast sub-population and Wnt signaling pathway could be novel targets for the therapy of *** in risk management and cardiovascular inter-vention have significantly reduced age-specific cardiovascular disease-related *** contrast,the rate of HF-related hospitalisations has increased over the past decades and HF is a disease with highest social and economic cost in industrialized *** is defined as impairment of the heart’s blood pumping function and its severity is assessed based on ejection *** often occurs after myocardial infarction(MI),with infarct size and quality of ventricular remodeling after MI influencing ventricular *** of HF also include hypertension,atrial fibrillation,and cardiomyopathies(Fig.1).Especially elderly patients with recurrent MI and comorbidities are increasingly presenting with signs of HF.

关键词： cardiovascular ventricular mortality

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A challenging case of alpha-fetoprotein-result discrepancies in a patient with chronic hepatitis B

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Gastroenterology Report 2020年第6期8卷 484-486,I0003页

作者： Pir A.shah Allison Onken Rizwan Ishtiaq Muhammad H.Maqsood shyam s.Patel Karen j.Campoverde Reyes Adrianna Z.Herskovits Daryl T.Y.Lau Department of Medicine Liver CenterDivision of GastroenterologyBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMAUSA Department of Pathology Beth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMAUSA

Introduction Alpha-fetoprotein(AFP)is the most abundant serum protein found in the human fetus,produced by the yolk sac and the liver[1].The levels of maternal serum AFP reach a peak value at28-32 weeks of gestation and decrease rapidly after birth and usually drop to the normal at 8-12 months of *** normal serum AFP level for an adult isst,livertumor cells usually synthesize and secrete an increased level of *** ultrasound and AFP are generally recommended as the screening modality for HCC for patients at risk for development of hepatocellular carcinoma(HCC)[1].AFP-L3,an isoform of AFP that binds Lens culinaris agglutinin,can be particularly useful in the early identification of aggressive HCC[2].These assays,however,can generate false-positive and false-negative AFP *** patients with advanced HCC,20%had normal AFP levels,whereas some patients with liver diseases had significant AFP elevation without liver cancer in long-term surveillance[3].Elevated AFP levels could be associated with active liver diseases with hepatocyte regeneration[4,5].In that setting,the AFP level will decline with improvement of the underlying liver *** case illustrated the dilemma and uncertainties as a result of persistent abnormal AFP values after extensive clinical investigations.

关键词：甲胎蛋白 fetus false

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seniority and (9/2)^(n) configurations in neutron-rich Nickel isotopes

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Chinese Physics C 2022年第7期46卷 103-111页

作者： s.sidorov D.Zhulyaeva T.Tretyakova Faculty of Physics Lomonosov Moscow State UniversityMoscow 119991Rusia skobeltsyn Institute of Nuelear Physicso Moscow state University Moscow 119991Rssia

Excited states in low-energy spectra of ^(70-76) Ni are considered. Accordingly, pairing forces in the form of surface delta interaction are employed to account for the formation of the ground state multiplet with seniority v= 2 states. The multiplet splitting is described with mass relationships of masses of neighboring nuclei. subsequently, the seniority model is adopted to reproduce or predict the states v= 3 in odd-even isotopes and v= 4 in even-even isotopes. The correct account of the 2^(+)_(1) state should allow for the description of the reversed order of j = 4 states with v= 2 and v= 4 observed in experiments. The results obtained are compared with the structure of similar multiplets in N=50 isotones.

关键词： shell model nucleon pairing seniority scheme neutron-rich isotopes

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Kinetics of silver Dissolution in Nitric Acid from Ag-Au_(0.04)-Cu_(0.10) and Ag-Cu_(0.23) scraps

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journal of Materials science & Technology 2006年第5期22卷 696-700页

作者： s.K.sadrnezhaad E.Ahmadi M.Mozammel Center of Excellence for Advanced Processes of Production of Materials Department of Materials science and Engineering Sharif University of TechnologyTehranIran

Kinetics of dissolution of silver present in precious metal 26～85℃. Dissolution rate of silver was much faster than scraps in HNO3 was studied in temperature range of that of copper at all temperatures. Effects of particle size, stirring speed, acid concentration and temperature on the rate of dissolving of silver were evaluated. Dissolution rate decreases with particle size and increases with temperature. Dissolving was accelerated with acid concentrations less than 10 mol/L. Concentrations greater than 10 mol/L resulted in slowing down of the dissolution rate. shrinking core model with internal diffusion equation t/τ=1-3（1-x）^2/3＋2（1-x） could be used to explain the mechanism of the reaction. silver extraction resulted in activation energies of 33.95 kj/mol for Ag-Au0.04-Cu0.10 and 68.87 kj/mol for Ag-Cu0.23 particles. Inter-diffusion of silver and nitrate ions through the porous region of the insoluble alloying layer was the main resistance to the dissolving process. Results were tangible for applications in recycling of the material from electronic silver-bearing scraps, dental alloys, jewelry, silverware and anodic slime precious metal recovery.

关键词： silver Copper Kinetics, Dissolution shrinking core model Internal diffusion

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Regionalization of epididymal duct and epithelium in rats and mice by automatic computer-aided morphometric analysis

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Asian journal of Andrology 2005年第3期7卷 267-275,页

作者： C.soler j.j.deMonserrat M.Núez R.Gutiérrez j.Núez M.sancho T.G.Cooper Departmentof Functional Biology and Physical Anthropology University of ValènciaValència 46112Spain Departamentode Ouímica y Biología Universidad del NorteBarranquillaColombia Instituteof Reproductive Medicine University of MünsterMünster D-48129Germany

Aim： To establish a rat and mouse epididymal map based on the use of the Epiquatre automatic software for histologic image analysis. Methods： Epididymides from five adult rats and five adult mice were fixed in alcoholic Bouin＇s fixative and embedded in paraffin. serial longitudinal sections through the medial aspect of the organ were cut at 10 jam and stained with hematoxylin and eosin. As determined from major connective tissue septa, nine subdivisions of the rat epididymis and seven for the mouse were determined, consisting of five sub-regions in the caput （rat and mouse）, one （mouse） or three （rat） in the corpus and one in the cauda （rat and mouse）. Using the Epiquatre software, several tubular, luminal and epithelial morphometric parameters were evaluated. Results： statistical comparison of the quantitative parameters revealed regional differences （2-5 in the rat, 3-6 in the mouse, dependent on parameters） with caput regions 1 and 2 being largely distinguishable from the similar remaining caput and corpus, which were in turn recognizable from the cauda regions in both species. Conclusion： The use of the Epiquatre software allowed us to establish regression curves for different morphometric parameters that can permit the detection of changes in their values under different pathological or experimental conditions. （Asian j Androl 2005 sep; 7： 267-275）

关键词： rat mouse epididymis morphometry zonation computer-aided image analysis Epiquatre software

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Development and application of functional gene arrays for microbial community analysis

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中国有色金属学会会刊：英文版 2008年第6期18卷 1319-1327页

作者： Z. L. HE j. D. VAN NOsTRAND L.Y. WU j. Z. ZHOU Institute for Environmental Genomics Department of Botany and Microbiology University of Oklahoma Norman OK 73019 USA

功能的基因标记能关于功能的基因差异和微生物引起的社区的潜在的活动提供重要信息。尽管 microarray 技术成功地被使用了为纯文化学习基因表示，简单、人工的微生物引起的社区，改编如此的一种技术分析复杂微生物引起的社区仍然以设计... 详细信息

功能的基因标记能关于功能的基因差异和微生物引起的社区的潜在的活动提供重要信息。尽管 microarray 技术成功地被使用了为纯文化学习基因表示，简单、人工的微生物引起的社区，改编如此的一种技术分析复杂微生物引起的社区仍然以设计，样品准备，和数据分析提出很多挑战。这个工作集中于功能的基因数组(FGA ) 的开发和应用程序为微生物引起的社区研究指向关键功能的基因标记。一些与 FGA 有关明确地给问题调音，例如 oligonucleotide 探查设计， nucleic 酸抽取和纯化，数据分析，特性，敏感，和量的能力详细被讨论。最近的研究证明了 FGA 能从许多自然环境关于微生物引起的社区提供特定、敏感、潜在地量的信息并且控制生态系统。这种技术被期望革命化微生物引起的社区的分析，并且连接微生物引起的结构到生态系统工作。

关键词：微数列应用函数基因标记微生物种群

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