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Leaching kinetics of celestite in nitric acid solutions

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International Journal of Minerals,Metallurgy and Materials 2019年第1期26卷 11-20页

作者： Feray kocan Umran Hicsonmez Faculty of Arts and Sciences Chemistry Department Manisa Celal Bayar University

In this study, strontium nitrate extraction from celestite in nitric acid solutions was investigated using the leaching method. The influences of acid concentration, solid-to-liquid ratio, stirring speed, and reaction temperature on the leaching of strontium from celestite concentrate were studied. The results showed that the leaching rate increased with increasing acid concentration, stirring speed, and temperature and decreased with increasing solid-to-liquid ratio. The particle size was fixed in all of the dissolution experiments. The results showed that the stirring speed and the temperature were the most influential parameters with respect to the leaching process. The kinetic model best fit control by diffusion through the product layer. The activation energy of the dissolution celestite in nitric acid solutions was calculated to be 42.22 kJ/mol.

关键词： dissolution hydrometallurgy leaching kinetics separation strontium nitrate

Exploring DFT+U parameter space with a Bayesian calibration assisted by Markov chain Monte Carlo sampling

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npj Computational Materials 2021年第1期7卷 1661-1669页

作者： Pedram Tavadze Reese Boucher Guillermo Avendaño-Franco Keenan X.kocan Sobhit Singh Viviana Dovale-Farelo Wilfredo Ibarra-Hernández Matthew B.Johnson David S.Mebane Aldo H.Romero Department of Physics and Astronomy West Virginia UniversityMorgantownWVUSA Department of Mechanical and Aerospace Engineering West Virginia UniversityMorgantownWVUSA Department of Physics and Astronomy Rutgers UniversityPiscatawayNJUSA Facultad de Ingeniería Benemérita Universidad Autónoma de PueblaApdo.Postal J-39PueblaPue.72570México

The density-functional theory is widely used to predict the physical properties of ***,it usually fails for strongly correlated materials.A popular solution is to use the Hubbard correction to treat strongly correlated electronic ***,the values of the Hubbard U and J parameters are initially unknown,and they can vary from one material to *** this semi-empirical study,we explore the U and J parameter space of a group of iron-based compounds to simultaneously improve the prediction of physical properties(volume,magnetic moment,and bandgap).We used a Bayesian calibration assisted by Markov chain Monte Carlo sampling for three different exchange-correlation functionals(LDA,PBE,and PBEsol).We found that LDA requires the largest U *** has the smallest standard deviation and its U and J parameters are the most transferable to other iron-based ***,PBE predicts lattice parameters reasonably well without the Hubbard correction.

关键词： materials Hubbard parameter

牙本质粘接剂和玻璃离子粘固剂对乳、恒牙釉质摄氟的比较研究

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中国口腔医学继续教育杂志 2000年第1期3卷 6-9页

作者： EoonN kocan 北京海淀区白石桥路38号北京医科大学口腔医学院100081

目的多种释氟牙科材料的问世是由于其抑龋特性，但是材料的释氟量尚不确定。本研究的目的是测定体外乳牙和恒牙釉质从材料摄氟的情况，包括一种传统型玻璃离子粘固剂（Fuji Ⅱ），一种树脂改性玻璃离子粘固剂（Fuji Ⅱ LC)及二种释氟... 详细信息

目的多种释氟牙科材料的问世是由于其抑龋特性，但是材料的释氟量尚不确定。本研究的目的是测定体外乳牙和恒牙釉质从材料摄氟的情况，包括一种传统型玻璃离子粘固剂（Fuji Ⅱ），一种树脂改性玻璃离子粘固剂（Fuji Ⅱ LC)及二种释氟牙本质粘接剂（Liner Bond2和Optibond)。材料和方法选取160颗无龋恒牙及乳牙，釉质表面制备标准实验开窗区，根据使用说明书应用材料。用选择性电极和酸蚀活检术测定釉质摄氟量。结果 Fuji Ⅱ和Fuji Ⅱ LC对乳恒牙摄氟量有统计学意义，而Optibond和Liner Bond2对釉质摄氟无明显意义。结论 Fuji Ⅱ和Fuji Ⅱ LC玻璃离子类材料比Optibond和Liner Bond2更能有效释放氟供釉质摄取。

关键词：牙本质粘接剂玻璃离子粘固剂恒牙釉质摄氟乳牙

Antibiotic and Bacteriocin Sensitivity of <i>Listeria monocytogenes</i>Strains Isolated from Different Foods

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Food and Nutrition Sciences 2012年第3期3卷 363-368页

作者： Evrim Gunes Altuntas Deniz kocan Serap Cosansu Kamuran Ayhan Vijay K. Juneja Luis Materon Agricultural Research Service United States Department of Agriculture (USDA) Eastern Regional Research Center Microbial Food Safety Research Unit Wyndmoor USA Biology Department University of Texas Pan American Edinburg USA. Food Engineering Department Engineering Faculty Ankara University Ankara Turkey Food Engineering Department Engineering Faculty Sakarya University Sakarya Turkey Food Technology Department Guzelyurt Vocational School Aksaray University Guzelyurt Turkey

This study aimed to determine the antibiotic and bacteriocin sensitivity of Listeria monocytogenes strains isolated from animal derived foods. With disc diffusion assay, all fourteen L. monocytogenes strains were suscepti-ble to the antibiotics, including penicillin G, vancomycin, tetracycline, chloramphenicol, rifampicin, erythromycin, gentamicin and trime- thoprim. However, the percentages of fosfomycin and streptomycin resistances were 92.9% and 7.1%, respectively. Multiple resistances were not observed among the tested strains. The results of well diffusion assays showed that all strains were inhibited by the cell-free supernatant of a bacteriocin-producing strain, Pediococcus acidilactici 13, with the inhibition zones ranging from 16.00 to 24.50 mm. These results provide useful information on antibiotic resistance of L. monocytogenes strains isolated from foods, and can potentially be used to develop bacteriocin-based interventions to guard against the hazards associated with L. monocytogenes in ready-to-eat meat and poultry products.

关键词： Listeria Antibiotic Bacteriocin

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温挤压模具的最佳温度

国外金属加工 1992年第3期13卷 28-31页

作者： kocan.,A 范钦之

基于形成复合物的中性分子LC-ESI-MS-MS方法发展

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生命科学仪器 2007年第5期5卷 6-11页

作者： Geralyn kocan Daniel Tang Douglas M.Fast Steven M.Michael Dynamics & Metabolism Pfizer Global Research and Development Michigan Laboratories Pfizer Inc. 2008 Plymouth Rd. Ann Arbor MI 48105 U.S.A.

对于极性与可带电分子而言,电喷雾离子化(ESI)是一种合适的质谱离子化模式,但由于非极性与中性分子的离子化效率低,一般不能直接采用ESI的离子化模式。为了克服电喷雾离子化的这种限制,已经发展了多种相应的策略,本文介绍的方法便是其... 详细信息

对于极性与可带电分子而言,电喷雾离子化(ESI)是一种合适的质谱离子化模式,但由于非极性与中性分子的离子化效率低,一般不能直接采用ESI的离子化模式。为了克服电喷雾离子化的这种限制,已经发展了多种相应的策略,本文介绍的方法便是其中一种。这种方法采用一个小的阴离子与中性分子形成复合物,可以有效提高中性分子的电喷雾离子化能力。

关键词：中性分子复合物 S方法电喷雾离子化质谱离子化非极性 ESI 阴离子

Methods for a blind analysis of isobar data collected by the STAR collaboration

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Nuclear Science and Techniques 2021年第5期32卷 43-50页

作者： J.Adam L.Adamczyk J.R.Adams J.K.Adkins G.Agakishiev M.M.Aggarwal Z.Ahammed I.Alekseev D.M.Anderson A.Aparin E.C.Aschenauer M.U.Ashraf F.G.Atetalla A.Attri G.S.Averichev V.Bairathi K.Barish A.Behera R.Bellwied A.Bhasin J.Bielcik J.Bielcikova L.C.Bland I.G.Bordyuzhin J.D.Brandenburg A.V.Brandin J.Butterworth H.Caines M.Calderon de la Barca Sanchez D.Cebra I.Chakaberia P.Chaloupka B.K.Chan F-H.Chang Z.Chang N.Chankova-Bunzarova A.Chatterjee D.Chen J.Chen J.H.Chen X.Chen Z.Chen J.Cheng M.Cherney M.Chevalier S.Choudhury W.Christie X.Chu H.J.Crawford M.Csanad M.Daugherity T.G.Dedovich I.M.Deppner A.A.Derevschikov L.Didenko X.Dong J.L.Drachenberg J.C.Dunlop T.Edmonds N.Elsey J.Engelage G.Eppley S.Esumi O.Evdokimov A.Ewigleben O.Eyser R.Fatemi S.Fazio P.Federic J.Fedorisin C.J.Feng Y.Feng P.Filip E.Finch Y.Fisyak A.Francisco L.Fulek C.A.Gagliardi T.Galatyuk F.Geurts A.Gibson K.Gopal X.Gou D.Grosnick W.Guryn A.I.Hamad A.Hamed S.Harabasz J.W.Harris S.He W.He X.H.He Y.He S.Heppelmann S.Heppelmann N.Herrmann E.Hoffman L.Holub Y.Hong S.Horvat Y.Hu H.Z.Huang S.L.Huang T.Huang X.Huang T.J.Humanic P.Huo G.Igo D.Isenhower W.W.Jacobs C.Jena A.Jentsch Y.Ji J.Jia K.Jiang S.Jowzaee X.Ju E.G.Judd S.Kabana M.L.Kabir S.Kagamaster D.Kalinkin K.Kang D.Kapukchyan K.Kauder H.W.Ke D.Keane A.Kechechyan M.Kelsey Y.V.Khyzhniak D.P.Kikoła C.Kim B.Kimelman D.Kincses T.A.Kinghorn I.Kisel A.Kiselev M.kocan L.Kochenda L.K.Kosarzewski L.Kramarik P.Kravtsov K.Krueger N.Kulathunga Mudiyanselage L.Kumar S.Kumar R.Kunnawalkam Elayavalli J.H.Kwasizur R.Lacey S.Lan J.M.Landgraf J.Lauret A.Lebedev R.Lednicky J.H.Lee Y.H.Leung C.Li C.Li W.Li W.Li X.Li Y.Li Y.Liang R.Licenik T.Lin Y.Lin M.A.Lisa F.Liu H.Liu P.Liu P.Liu T.Liu X.Liu Y.Liu Z.Liu T.Ljubicic W.J.Llope R.S.Longacre N.S.Lukow S.Luo X.Luo G.L.Ma L.Ma R.Ma Y.G.Ma N.Magdy R.Majka D.Mallick S.Margetis C.Markert H.S.Matis J.A.Mazer N.G.Minaev S.Mioduszewski B.Mohanty I.Mooney Z.Moravcova D.A.Morozov M.Nagy J.D.Nam Md.Nasim K.Nayak D.Neff J.M.Nelson D.B.Nemes M.Nie G.Nigmatkulov T.Niida L.V.Nogach T.Nonak Christian University AbileneTX 796992 AGH University of Science and Technology FPACSCracow 30-059Poland Alikhanov Institute for Theoretical and Experimental Physics NRC"Kurchatov Institute" MoscowRussia 117218 Argonne National Laboratory ArgonneIL 60439 American University of Cairo New CairoNew Cairo 11835Egypt Brookhaven National Laboratory UptonNY 11973 University of California BerkeleyCA 94720 University of California DavisCA 95616 University of California Los AngelesCA 90095 University of California RiversideCA 92521 Central China Normal University Wuhan 430079 University of Illinois at Chicago ChicagoIL 60607 Creighton University OmahaNE 68178 Czech Technical University in Prague FNSPEPrague 11519Czech Republic Technische Universitat Darmstadt Darmstadt 64289Germany ELTE Eotvos Lorand University Budapest 1117Hungary Frankfurt Institute for Advanced Studies FIAS Frankfurt 60438Germany Fudan University Shanghai 200433 University of Heidelberg 69120 HeidelbergGermany University of Houston HoustonTX 77204 Huzhou University Huzhou 313000 Indian Institute of Science Education and Research(IISER) Berhampur 760010India Indian Institute of Science Education and Research(IISER)Tirupati Tirupati 517507India Indian Institute Technology PatnaBihar 801106India Indiana University BloomingtonIN 47408 Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000 University of Jammu Jammu 180001India Joint Institute for Nuclear Research DubnaRussia 141980 Kent State University KentOH 44242 University of Kentucky LexingtonKY 40506-0055 Lawrence Berkeley National Laboratory BerkeleyCA 94720 Lehigh University BethlehemPA 18015 Max-Planck-Institut fur Physik 80805 MunichGermany Michigan State University East LansingMI 48824 National Research Nuclear University MEPhI MoscowRussia 115409 National Institute of Science Education and Research HBNIJatni 752050India National Cheng Kung University Tainan 70101 Nuclear Physics Institute of the CAS Rez 25068Czech Republic Ohio State University

In 2018,the STAR collaboration collected data from^(96)_(44)Ru+^(96)_(44)Ru and^(96)_(40)Zr+^(96)_(40)Zr at√^(S)NN=200 Ge V to search for the presence of the chiral magnetic effect in collisions of *** isobar collision species alternated frequently between 9644 Ru+^(96)_(44)Ru and^(96)_(40)Zr+^(96)_(40)*** order to conduct blind analyses of studies related to the chiral magnetic effect in these isobar data,STAR developed a three-step blind analysis *** are initially provided a"reference sample"of data,comprised of a mix of events from the two species,the order of which respects time-dependent changes in run *** tuning analysis codes and performing time-dependent quality assurance on the reference sample,analysts are provided a species-blind sample suitable for calculating efficiencies and corrections for individual≈30-min data-taking *** this sample,species-specific information is disguised,but individual output files contain data from a single isobar *** run-by-run corrections and code alteration subsequent to these corrections are allowed at this *** these modifications,the"frozen"code is passed over the fully un-blind data,completing the blind *** a check of the feasibility of the blind analysis procedure,analysts completed a"mock data challenge,"analyzing data from Au+Au collisions at√^(S)NN=27 Ge V,collected in *** Au+Au data were prepared in the same manner intended for the isobar blind *** details of the blind analysis procedure and results from the mock data challenge are presented.

关键词： Blind analysis Chiral magnetic effect Heavy-ion collisions

Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at √sNN=200 GeV

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Chinese Physics C 2020年第10期44卷 59-67页

作者： L.Adamczyk J.R.Adams J.K.Adkins G.Agakishiev M.M.Aggarwal Z.Ahammed I.Alekseev D.M.Anderson A.Aparin E.C.Aschenauer M.U.Ashraf F.G.Atetalla A.Attri G.S.Averichev V.Bairathi K.Barish A.Behera R.Bellwied A.Bhasin J.Bielcik J.Bielcikova L.C.Bland I.G.Bordyuzhin J.D.Brandenburg A.V.Brandin J.Butterworth H.Caines M.Calderón de la Barca Sánchez D.Cebra I.Chakaberia P.Chaloupka B.K.Chan F-H.Chang Z.Chang N.Chankova-Bunzarova A.Chatterjee D.Chen J.H.Chen X.Chen Z.Chen J.Cheng M.Cherney M.Chevalier S.Choudhury W.Christie X.Chu H.J.Crawford M.Csanád M.Daugherity T.G.Dedovich I.M.Deppner A.A.Derevschikov L.Didenko X.Dong J.L.Drachenberg J.C.Dunlop T.Edmonds N.Elsey J.Engelage G.Eppley S.Esumi O.Evdokimov A.Ewigleben O.Eyser R.Fatemi S.Fazio P.Federic J.Fedorisin C.J.Feng Y.Feng P.Filip E.Finch Y.Fisyak A.Francisco L.Fulek C.A.Gagliardi T.Galatyuk F.Geurts A.Gibson K.Gopal D.Grosnick W.Guryn A.I.Hamad A.Hamed S.Harabasz J.W.Harris S.He W.He X.H.He S.Heppelmann S.Heppelmann N.Herrmann E.Hoffman L.Holub Y.Hong S.Horvat Y.Hu H.Z.Huang S.L.Huang T.Huang X.Huang T.J.Humanic P.Huo G.Igo D.Isenhower W.W.Jacobs C.Jena A.Jentsch Y.JI J.Jia K.Jiang S.Jowzaee X.Ju E.G.Judd S.Kabana M.L.Kabir S.Kagamaster D.Kalinkin K.Kang D.Kapukchyan K.Kauder H.W.Ke D.Keane A.Kechechyan M.Kelsey Y.V.Khyzhniak D.P.Kikoła C.Kim B.Kimelman D.Kincses T.A.Kinghorn I.Kisel A.Kiselev M.kocan L.Kochenda L.K.Kosarzewski L.Kramarik P.Kravtsov K.Krueger N.Kulathunga Mudiyanselage L.Kumar S.Kumar R.Kunnawalkam Elayavalli J.H.Kwasizur R.Lacey S.Lan J.M.Landgraf J.Lauret A.Lebedev R.Lednicky J.H.Lee Y.H.Leung C.Li W.Li W.Li X.Li Y.Li Y.Liang R.Licenik T.Lin Y.Lin M.A.Lisa F.Liu H.Liu P.Liu P.Liu T.Liu X.Liu Y.Liu Z.Liu T.Ljubicic W.J.Llope R.S.Longacre N.S.Lukow S.Luo X.Luo G.L.Ma L.Ma R.Ma Y.G.Ma N.Magdy R.Majka D.Mallick S.Margetis C.Markert H.S.Matis J.A.Mazer N.G.Minaev S.Mioduszewski B.Mohanty I.Mooney Z.Moravcova D.A.Morozov M.Nagy J.D.Nam Nasim Md K.Nayak D.Neff J.M.Nelson D.B.Nemes M.Nie G.Nigmatkulov T.Niida L.V.Nogach T.Nonaka A.S.Nunes G.Odyniec A.Ogawa Abilene Christian University AbileneTexas 79699 AGH University of Science and Technology FPACSCracow 30-059Poland Alikhanov Institute for Theoretical and Experimental Physics NRC"Kurchatov Institute" Moscow 117218Russia Argonne National Laboratory ArgonneIllinois 60439 American University of Cairo New Cairo 11835New CairoEgypt Brookhaven National Laboratory UptonNew York 11973 University of California BerkeleyCalifornia 94720 University of California DavisCalifornia 95616 University of California Los AngelesCalifornia 90095 University of California RiversideCalifornia 92521 Central China Normal University WuhanHubei 430079 University of Illinois at Chicago ChicagoIllinois 60607 Creighton University OmahaNebraska 68178 Czech Technical University in Prague FNSPEPrague 11519Czech Republic Technische Universität Darmstadt Darmstadt 64289Germany ELTE Eötvös Loránd University BudapestHungary H-1117 Frankfurt Institute for Advanced Studies FIAS Frankfurt 60438Germany Fudan University Shanghai 200433 University of Heidelberg Heidelberg 69120Germany University of Houston HoustonTexas 77204 Huzhou University HuzhouZhejiang 313000 Indian Institute of Science Education and Research(IISER) Berhampur 760010India Indian Institute of Science Education and Research(IISER)Tirupati Tirupati 517507India Indian Institute Technology PatnaBihar 801106India Indiana University BloomingtonIndiana 47408 Institute of Modern Physics Chinese Academy of SciencesLanzhouGansu 730000 University of Jammu Jammu 180001India Joint Institute for Nuclear Research Dubna 141980Russia Kent State University KentOhio 44242 University of Kentucky LexingtonKentucky 40506-0055 Lawrence Berkeley National Laboratory BerkeleyCalifornia 94720 Lehigh University BethlehemPennsylvania 18015 Max-Planck-Institut für Physik Munich 80805Germany Michigan State University East LansingMichigan 48824 National Research Nuclear University MEPhI Moscow 115409Russia National Institute of Science Education and Research HBNIJatni 752050Indi

High transverse momentum(pT)particle production is suppressed owing to the parton(jet)energy loss in the hot dense medium created in relativistic heavy-ion *** of energy at low-to-modest pT has been difficult to measure,owing to large anisotropic *** report a data-driven method for background evaluation and subtraction,exploiting the away-side pseudorapidity gaps,to measure the jetlike correlation shape in Au+Au collisions at √sNN=200 GeV in the STAR *** correlation shapes,for trigger particles pT>3GeV/c and various associated particle pT ranges within 0.5

关键词： di-hadron correlations jet heavy-ion