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Articles 4921 - 4950 of 79200
Full-Text Articles in Entire DC Network
11-28-2007 Swosu Plans Christmas Concert On December 9, Southwestern Oklahoma State University
11-28-2007 Swosu Plans Christmas Concert On December 9, Southwestern Oklahoma State University
THE BARK ARCHIVE 2007
Southwestern Oklahoma State University’s Music Department will present a concert of Christmas favorites on Sunday, December 9, on the Weatherford campus.
Campus Assembly Minutes 11/28/2007, Campus Assembly
Campus Assembly Minutes 11/28/2007, Campus Assembly
Campus Assembly
No abstract provided.
"The Crescent" Student Newspaper, November 28, 2007, George Fox University Archives
"The Crescent" Student Newspaper, November 28, 2007, George Fox University Archives
"The Crescent" Student Newspaper
Student newspaper of George Fox University.
Retention Of Beginning Teachers Through Comprehensive Induction Programs, Debora L. Easterday
Retention Of Beginning Teachers Through Comprehensive Induction Programs, Debora L. Easterday
Regis University Student Publications (comprehensive collection)
Student achievement has become a critical concern in education since the passage of the No Child Left Behind Legislation of 2002. At the same time, the retention rate of beginning teachers is 50% within the first five years. This low retention rate affects student achievement, building initiatives and districts' finances. Research indicates that comprehensive induction programs can raise the rate of retention of beginning teachers. One component of a comprehensive induction program is site based professional development. This project, with the use of a PowerPoint presentation, is an introduction to site based staff development for beginning teachers. The target audience …
Deafdigest: Deaf Sports News November 28, 2007, Barry Strassler
Deafdigest: Deaf Sports News November 28, 2007, Barry Strassler
DeafDigest Sports 2007
No abstract provided.
November 28, 2007, Library Advisory Board
November 28, 2007: Mike Huckabee's Chances, Bruce Ledewitz
November 28, 2007: Mike Huckabee's Chances, Bruce Ledewitz
Hallowed Secularism
Mike Huckabee's Chances
Spartan Daily, November 28, 2007, San Jose State University, School Of Journalism And Mass Communications
Spartan Daily, November 28, 2007, San Jose State University, School Of Journalism And Mass Communications
Spartan Daily (School of Journalism and Mass Communications)
Volume 129, Issue 48
11/28/2007 Obituary Records, Hawaii Obituaries
11/28/2007 Obituary Records, Hawaii Obituaries
Obituaries
List of Obituaries for individuals who passed away on 11/28/2007. Scroll down to see the names and obituary description.
11/28/2007 Obituary Records, Hawaii Obituaries
11/28/2007 Obituary Records, Hawaii Obituaries
Obituaries
List of Obituaries for individuals who passed away on 11/28/2007. Scroll down to see the names and obituary description.
Cortes V. Comm Social Security
Cortes V. Comm Social Security
2007 Decisions
USDC for the Eastern District of Pennsylvania
Gorin, Sandra Kaye (Laughery) (Mss 181), Manuscripts & Folklife Archives
Gorin, Sandra Kaye (Laughery) (Mss 181), Manuscripts & Folklife Archives
Manuscript Collection Finding Aids
Finding aid only for Manuscripts Collection 181. Research material for Gorin's book, "Blood Runs in the Barrens", which examines murders that took place in Barren County, Kentucky, from 1817 to 1909. Includes copies of court documents and newspaper clippings.
November 28, 2007 Cal Poly Report, Public Affairs Office
November 28, 2007 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Molten Salt Systems And The New Developments For The Application Of Molten Salts, Peng Liu, Ye-Xiang Tong, Qi-Qin Yang
Molten Salt Systems And The New Developments For The Application Of Molten Salts, Peng Liu, Ye-Xiang Tong, Qi-Qin Yang
Journal of Electrochemistry
The general situation of molten salt systems since 21 century are presented.The development of room temperature molten salts are emphasized.Applications of molten salts to the areas of preparating alloys and functional materials;batteries and capacitors;analysis and separation;use as reaction media and catalyzers;environmental protection have good prospect.In order to continually develop the molten salt system,it is necessary further to know the properties of molten salts and relevant theories,as well as exploiting the new methods and novel systems of synthesizing molten salts.
Electrochemical Oxidization Of Herring Sperm Dna And Its Interaction With Histone, Juan Xu, Gui-Ping Huang, Hong Li, Wei Zhu
Electrochemical Oxidization Of Herring Sperm Dna And Its Interaction With Histone, Juan Xu, Gui-Ping Huang, Hong Li, Wei Zhu
Journal of Electrochemistry
The voltammetric behavior of herring sperm DNA at glassy carbon electrode and its interaction with histone have been investigated by using cyclic voltammetry,differential pulse voltammetry,and fluorescence measurement.In the potential range of 0.20 V to 1.25 V,it is found that an irreversible oxidative peak is exhibited in acid solution,but in the neutral or alkaline solution two oxidative peaks are observed.Oxidative peak potential values show a negative shift with increasing pH via a slope of-57 mV·pH-1 and a linear relation with DNA concentration in the range of 0.45 to 8.20 mmol·L-1.In the presence of histone,the oxidative peak current of DNA …
Eiectro-Oxidation Of Methanol On Pdnio/C Catalyst In Alkaline Medium, Mei-Li Wang, Lin Sang, Cheng-De Huang
Eiectro-Oxidation Of Methanol On Pdnio/C Catalyst In Alkaline Medium, Mei-Li Wang, Lin Sang, Cheng-De Huang
Journal of Electrochemistry
The electro-oxidation of methanol in alkaline electrolyte at in-house synthesized PdNiO/C and Pd/C catalysts and the effect of heat treatment on the structure and performance of catalysts were studied by cyclic voltammetry,chronoamperometry,chronopotentiometry and X-ray diffraction methods.It is shown that when the reduction temperature is 70℃ and the ratio between Pd and Ni is 8∶2,The PdNiO/C catalyst presents a highest activity for methanol electrooxidation.Calcining can increase the particle size and crystallinity of catalysts,but decrease the dispersion and activity of catalysts, too.Besides,the NiO is disengaged from Pd lattice by heat-treatment.The optimal PdNiO/C catalyst shows higher catalytic activity and much better poisoning resistance …
Preparation And Properties Of High Capacity Lifepo4, Jun Li, Gui-Tang Lai, Hui-Min Huang, Da-Guang Li, Xin-De Xia
Preparation And Properties Of High Capacity Lifepo4, Jun Li, Gui-Tang Lai, Hui-Min Huang, Da-Guang Li, Xin-De Xia
Journal of Electrochemistry
Carbon-doped LiFePO4/C and pure phase LiFePO4 cathode materials were prepared by liquid-state precipitation reaction. The results of XRD, SEM, elemental analysis,FTIR and A.C.impedance tests show that the samples have had olivine structure and a 3.4V discharge platform.The tapped density of LiFePO4/C sample could reach 1.46g/cm3, the initiate discharge capacity is 144.6mAh/g at 0.1C,which remained capacity is 93.2% after 20 cycles. The first discharge capacity is 133.5mAh/g at 1C and the capacity decreased 8.76% after 20 cycles.
Electrochemical Behavor Of Zinc-Indium Alloy Electrodes In Concentrated Alkaline Solution, Zhi-Lin Wang, Xiao-Ge Zhang, Rong-Gui Du, Chang-Jian Lin
Electrochemical Behavor Of Zinc-Indium Alloy Electrodes In Concentrated Alkaline Solution, Zhi-Lin Wang, Xiao-Ge Zhang, Rong-Gui Du, Chang-Jian Lin
Journal of Electrochemistry
The electrochemical behavior of zinc-indium alloy electrodes in 35%KOH solutions has been investigated by electrochemical methods including the potentiodynamic polarization and discharge measurements under constant current density.The results indicate that the anodic current density and passive current density increase after the indium addition.The discharge measurement shows that the addition of indium shortens the time to passive state for the Zn alloy compared to pure zinc at a large discharge conditions,that is the addition of indium may enhance the electrochemical activity of Zn alloy electrodes.It is found that the anodic dissolution of zinc-indium alloy electrodes in the concentrated KOH solution occurs …
Study On The Corrosion Of Chlorine Condenser By Electrochemical Method, Bin Xiang, Wen Chen, Wen-Zhang Huang, Shao-Hua Xing, Sheng-Tao Zhang
Study On The Corrosion Of Chlorine Condenser By Electrochemical Method, Bin Xiang, Wen Chen, Wen-Zhang Huang, Shao-Hua Xing, Sheng-Tao Zhang
Journal of Electrochemistry
Corrosion of condenser is very seriously in chlorine-alkali industry,which could lead to fatal disaster.The most commonly used material in low pressure condenser includes steel of 16MnR,10#,and welding rod of J507.Electrochemical analysis of the three materials in 29.9%(by mass) calcium chloride(CaCl2) solution was carried out.The corrosion current density icorr and impedance parameters of the three materials in 29.9% CaCl2 solution were estimated separately.The result showed that in the tripartite phase regions where the 10# seamless tube and 16MnR armor plate were jointed by welding,the weld was firstly eroded and suggested that the chlorine condenser should be examined and …
Voltammetric Behavior Of Rutin And Its Application, Zong-Yao Qian, Bing-Qi Li, Hong Liu, Xin-Fu Xia, Yin-Mei Wang, Ya-Ping Niu
Voltammetric Behavior Of Rutin And Its Application, Zong-Yao Qian, Bing-Qi Li, Hong Liu, Xin-Fu Xia, Yin-Mei Wang, Ya-Ping Niu
Journal of Electrochemistry
In solution of 0.1mol/L Tris-HCl(pH=8.3),a sensitive reduction peak of rutin was obtained by liner sweep polarography.The peak potential was-1.10V(vs.Ag/AgCl).The peak current was proportional to the concentration of rutin over the range of 7×10-7～9.8×10-6mol/L.This method has been applied to the determination of the flavonoid in G.Uralensis.The results showed that the reduction process was irreversible with adsorption that studied by linear sweep and cyclic voltammetry.
Study On Metal|Solid Electrolyte|Gel Membrane Containing Water|Graphite System, Jing-Dong Liu
Study On Metal|Solid Electrolyte|Gel Membrane Containing Water|Graphite System, Jing-Dong Liu
Journal of Electrochemistry
The characteristic of oxide layer formed on the surface of metal in Metal|Solid Electrolyte|Gel Membrane Containing Water|Graphite System was studied by using Point Defect Model and Barrier Layer/Porous Layer Model.Trace water in solid electrolyte helped to form porous layer at the surface of metal,The thickness of porous layer increased due to water molecule reacts with barrier layer continuously,which lowered the porosity and decreased the electromotive potential and current.Porosity influenced solubility behavior of oxide layer intensely.Like barrier layer,porous layer is also a semiconductor.
Determination Of Malathion Based On Carbon Nanotubes Modified Electrode Incorporating Acetylcholinesterase, Lu Zhang, Yao-Dong Zhang, Hong-Lan Qi
Determination Of Malathion Based On Carbon Nanotubes Modified Electrode Incorporating Acetylcholinesterase, Lu Zhang, Yao-Dong Zhang, Hong-Lan Qi
Journal of Electrochemistry
A biosensor for determination of organophosphorus pesticide based on the acetylcholinesterase and multi-wall carbon nanotubes modified electrode is fabricated.Under the optimal conditions,the chronoamperometric current at +0.70V(vs.SCE) increased linearly with the concentration of malathion in the range from 6.0×10-10 to 6.0×10-9 mol·L-1 with a detection limit of 1.0×10-10 mol·L-1.The recoveries of malathion in lake water is 97% to 105% determinated by this method.
Ion-Implanting Modification Of Layered Manganese Dioxide And Its Electrochemical Performance, He-Ning Huang, Dong-Ping Lv, Xing-Kang Huang, Qi-Wei Zhang, Yong Yang
Ion-Implanting Modification Of Layered Manganese Dioxide And Its Electrochemical Performance, He-Ning Huang, Dong-Ping Lv, Xing-Kang Huang, Qi-Wei Zhang, Yong Yang
Journal of Electrochemistry
Layered MnO2(δ-MnO2) was prepared by thermal decomposition of potassium permanganate.Ti was ion-implanted into such δ-MnO2 by physical techniques,forming a composite(δ-MnO2-Ti).These materials were characterized by XRD,SEM,XPS techniques and their electrochemical proprieties were investigated.The results showed that the layered structure of δ-MnO2 did not been destroyed after Ti ion implantation,and the implanted Ti element was mainly Ti4+ as indicated by XPS.Both of the first and the highest discharge specific capacities of the ion-implanted layered MnO2(δ-MnO2-Ti),compared to those of δ-MnO2,were improved significantly.
Electrochemical Behavior And Determination Of Luteolin At A Glassy Carbon Electrode, Ai-Lin Liu, Shao-Bo Zhang, Xiao-Sha Wu, Li-Ping Li, Yang-Yuan Cao, Li-Ying Huang, Xin-Hua Lin
Electrochemical Behavior And Determination Of Luteolin At A Glassy Carbon Electrode, Ai-Lin Liu, Shao-Bo Zhang, Xiao-Sha Wu, Li-Ping Li, Yang-Yuan Cao, Li-Ying Huang, Xin-Hua Lin
Journal of Electrochemistry
The electrochemical behavior of luteolin was studied by voltammetry at a glassy carbon electrode in phosphate buffer solution.The results exhibited that the well-defined redox peak of luteolin is observed and the electrode process is adsorption-controlled.The charge transfer coefficient(α) was calculated as 0.66 in phosphate buffer solution(pH 4.0).The relationships between oxidation peak current and the concentration of luteolin are linear in the range of 1.0×10-8 ～ 5.0×10-6 mol·L-1 by differential pulse voltammetric method.The detection limit had been estimated as 1.0×10-8 molL-1.This method can be used for the determination of luteolin with satisfactory results.
Selection Of Additions In The Process Of Electrochemical Synthesizing Of K2Feo4, Wei-Hua Yang, Dong-Qin Bi, Yan Zhou, Hong-Hui Wang, Xin-Ren Lan
Selection Of Additions In The Process Of Electrochemical Synthesizing Of K2Feo4, Wei-Hua Yang, Dong-Qin Bi, Yan Zhou, Hong-Hui Wang, Xin-Ren Lan
Journal of Electrochemistry
Some of different additions including KIO4 was added to the anodic electrolyte for electrochemical synthesizing of K2FeO4,the effects of these additions on current yield were investigated.XRD and SEM were used to characterize the structure and image of K2FeO4.The results show that KIO4 is a preferable addition.When the mass dosage of KIO4 is 0.02%,electrolysis time is 1 h,the current yield is enhanced by 31.6% and the corresponding purity of the product is improved by 3.85 %.
Volume 45, Number 15: November 28, 2007, University Of North Dakota
Volume 45, Number 15: November 28, 2007, University Of North Dakota
University Letter Archive
No abstract provided.
The Tropical Forest And Fire Emissions Experiment: Method Evaluation Of Volatile Organic Compound Emissions Measured By Ptr-Ms, Ftir, And Gc From Tropical Biomass Burning, T. G. Karl, Ted J. Christian, Robert J. Yokelson, Paulo Artaxo, Wei Min Hao, Alex Guenther
The Tropical Forest And Fire Emissions Experiment: Method Evaluation Of Volatile Organic Compound Emissions Measured By Ptr-Ms, Ftir, And Gc From Tropical Biomass Burning, T. G. Karl, Ted J. Christian, Robert J. Yokelson, Paulo Artaxo, Wei Min Hao, Alex Guenther
Chemistry and Biochemistry Faculty Publications
Volatile Organic Compound (VOC) emissions from fires in tropical forest fuels were quantified using Proton-Transfer-Reaction Mass Spectrometry (PTRMS), Fourier Transform Infrared Spectroscopy (FTIR) and gas chromatography (GC) coupled to PTRMS (GC-PTR-MS). We investigated VOC emissions from 19 controlled laboratory fires at the USFS (United States Forest Service) Fire Sciences Laboratory and 16 fires during an intensive airborne field campaign during the peak of the burning season in Brazil in 2004. The VOC emissions were dominated by oxygenated VOCs (OVOC) (OVOC/NMHC similar to 4:1, NMHC: non-methane hydrocarbons) The specificity of the PTR-MS instrument, which measures the mass to charge ratio of …