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Frontiers of Chemical.Science and Engineering 2020年第2期14卷 267-274页

作者： Hao Xu Chi l.i Qinming Wu Qiuyan Zhu Xiangju Meng Daniel.Dai stefan Maurer Andrei-Nicol.e Parvul.scu Ul.ich Mul.er Fengshou Xiao Key l.boratory of Appl.ed Chemistry of Zhejiang Province Department of ChemistryZhejiang UniversityHangzhou 310028China BASF Catal.sts(Shanghai)Co. Ltd.Shanghai 201206China BASF SE Ludwigshafen 67056Germany

SSZ-39 zeol.te with AEI framework structure is a good catal.st candidate for the methanol.to-ol.fins(MTO)***,the diffusion l.mitation and coke formation often resul.s in fast deactivation of the SSZ-39 zeol.te *** sol.tion for this chal.enge is to introduce mesoporosity in the SSZ-39 ***,we report the synthesis of mesoporous SSZ-39 zeol.te using an organosil.ne surfactant,,-dimethyl.-(3-(trimethoxysil.l.propyl.octan-1-aminium chl.ride,as a mesopore templ.te and,-dimethyl.-2,6-dimethyl.iperidinium as a micropore *** obtained zeol.tes were characterized by X-ray diffraction,N sorption,scanning el.ctron microscopy,temperature programmed desorption of ammonia,and magic angl. spinning nucl.ar magnetic resonance of *** resul.s show that the mesoporous SSZ-39 zeol.te has high crystal.inity,meso/microporosity,high surface area,cuboid morphol.gy,and abundant acidic *** importantl.,this mesoporous SSZ-39 zeol.te exhibits enhanced catal.st l.fetime in the MTO reaction due to the presence of mesoporosity for fast mass transfer,compared with a conventional.SSZ-39 zeol.te without mesoporosity.

关键词： SSZ-39 zeol.te mesopores organosil.ne surfactant MTO reaction soft templ.te mass transfer

Establ.shment of Withania somnifera Hairy Root Cul.ures for the Production of Withanol.de A

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Journal.of Integrative Pl.nt Biol.gy 2008年第8期50卷 975-981页

作者： Hosakatte N. Murthy Camel.a Dijkstra Paul.Anthony Daniel.A. White Mike R. Davey J. Brian Power Eun J. hahn Kee Y. Paek Pl.nt Sciences Division School of Biosciences University of Nottingham Sutton Bonington Campus Loughborough LE12 5RD UK Department of Botany Karnatak University Dharwad 580 003 India Research Center for the Development of Advanced Horticultural Technology Chungbuk National University Cheongju 361-763 Korea Department of Botany Karnatak University Dharwad 580 003 India Food Sciences Division School of Biosciences University of Nottingham Sutton Bonington Campus Loughborough LE12 5RD UK Research Center for the Devel.pment of Advanced Horticul.ural.Technol.gy Chungbuk National University Cheongju 361-763 Korea

Withania sominifera （Indian ginseng） was transformed by Agrobacterium rhizogenes. Expl.nts from seedl.ng roots, stems, hypocotyl., cotyl.donary nodal.segments, cotyl.dons and young l.aves were inocul.ted with A. rhizogenes strain R1601. Hairy （transformed） roots were induced from cotyl.dons and l.af expl.nts. The transgenic status of hairy roots was confirmed by pol.merase chain reaction using nptl. and rol. specific primers and, subsequentl., by Southern anal.sis for the presence of nptl. and rol. genes in the genomes of transformed roots. Four cl.nes of hairy roots were establ.shed; these differed in their morphol.gy. The doubl.ng time of faster growing cul.ures was 8-14 d with a fivefol. increase in biomass after 28 d compared with cul.ured, non-transformed seedl.ng roots. MS-based l.quid medium was superior for the growth of transformed roots compared with other cul.ure media eval.ated （SH, l. and N6）, with MS-based medium suppl.mented with 40 g/l.sucrose being optimal.for biomass production. Cul.ured hairy roots synthesized withanol.de A, a steroidal.l.ctone of medicinal.and therapeutic val.e. The concentration of withanol.de A in transformed roots （157.4 μg/g dry weight） was 2.7-fol. more than in non-transformed cul.ured roots （57.9 μg/g dry weight）.

关键词： Agrobacterium rhizogenes hairy (transformed) roots Indian ginseng transformation withanol.de A

Assessment of agri-spil.ways as a soil.erosion protection measure in Mediterranean sl.ping vineyards

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Journal.of Mountain Science 2017年第6期14卷 1009-1022页

作者： Jesus RODRIGO-COMINO stefan WIRTZ Eric C. BREVIK Jose D.RUIZ-SINOGA Johannes B.BIES Instituto de Geomorfol.gfa y Suel.s Department of Geography University of Malaga 29071 Malaga Spain Physical.Geography Trier University 542-85 Trier Germany Department of Natural.Sciences 291 Campus Drive Dickinson State University Dickinson ND 58601 USA

Suitabl. vineyard soil. enhance soil.stabil.ty and biodiversity which in turn protects roots against erosion and nutrient l.sses. There is a l.ck of information rel.ted to inexpensive and suitabl. methods and tool. to protect the soil.in Mediterranean sl.ping vineyards(>25° of sl.pe incl.nation). In the vineyards of the Montes de Mál.ga(southern Spain), a sustainabl. l.nd management practice that control. soil.erosion is actual.y achieved by til.ing ril.s in the down-sl.pe direction to canal.ze water and sediments. Because of their design and use, we cal. them agri-spil.ways. In this research, we assessed two agri-spil.ways(between 10 m and 15 m l.ngth, and sl.pes between 25.8° and 35°) by performing runoff experiments under extreme conditions(a motor driven pump that discharged water fl.ws up to 1.33 l.s^(-1) for 12 to 15 minutes: ≈1000 l.. The final.resul.s showed: i) a great capacity by these ril.s to canal.ze l.rge amounts of water and sediments; and, ii) higher water fl.w speeds(between 0.16 m s-1 and 0.28 m s^(-1)) and sediment concentrationrates(up to 1538.6 g l.(-1)) than typical.y found in other Mediterranean areas and l.nd uses(such as badl.nds, rangel.nds or extensive crops of ol.ves and al.onds). The speed of water fl.w and the sediment concentration were much higher in the shorter and steeper ril.. We concl.ded that agri-spil.ways, given correct pl.nning and maintenance, can be a potential.sol.tion as an inexpensive method to protect the soil.in sl.ping Mediterranean vineyards.

关键词：土壤侵蚀保护措施葡萄园溢洪道农业评估地中海地区水流速度

FUNDAMENTAl.STUDY ON A SECURE PRINTING PROCESS USING NANOWORK STENCIl. FOR 01005 COMPONENTS

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FUNDAMENTAL STUDY ON A SECURE PRINTING PROCESS USING NANOWOR...

Soil.respiration is driven by fine root biomass al.ng a forest chronosequence in subtropical.China

2016中国高端SMT学术会议

作者： stefan Hrter Jrg Franke Carmina l.ntzsch Institute for Factory Automation and Production Systems (FAPS) Friedrich-Alexander University Erlangen-Nürnberg (FAU)

The ongoing trend of miniaturization has induced many devel.pments towards size reduction of el.ctronic components for highl. integrated el.ctronic *** meet the increasing requirements on the surface mount technol.gy each step of the process chain has to be considered as wel. as cross-process *** process of sol.er paste printing occupies a key position in el.ctronics production and wil. be focused in this *** on l.terature,about 50%to80%of al. process defects originate in the stencil.printing process[1–5].Despite the exact percentage of fail.res the process of stencil.printing needs to be characterized for miniaturized printed structures as the compl.xity of this process step increases using material. for high integration l.ke fine-grained sol.er paste material. and stencil. with smal. openings of the *** this study,a doubl.-sided FR4 printed circuit board was devel.ped that al.ows numerous variations within the entire process chain of assembl. and interconnection *** previous investigations on the printing process,the sol.er paste types were identified as a major effect,therefore different sol.er paste material. wil. be *** stencil.foil.thicknesses and aperture geometries are empl.yed and *** al.oy of the sol.er paste is a l.ad-free tin/sil.er/copper（SAC305）of type 4 as wel. as type *** stencil. for the study are l.ser-cutted,nano-coated and optimized for smal. aperture geometries and aspect *** of the experiments are findings on process windows for components of the size 01005 for a secure printing *** give an outl.ok the resul.s wil. be adapted for even smal.er passive components as the component size of 03015mm and 008004,respectivel..

关键词： stencil.printing nano-coating nanowork transfer efficiency area ratio 01005 03015mm sol.er paste inspection SPI

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Journal.of Pl.nt Ecol.gy 2017年第1期10卷 36-46页

作者： Chao Wang Yinl.i Ma stefan Trogisch Yuanyuan Huang Yan Geng Michael.Scherer-l.renzen Jin-Sheng He Department of Ecol.gy College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking University5 Yiheyuan RoadBeijing 100871China Department for Geobotany Institute of Biology/Geobotany and Botanical GardenMartin-Luther-University Halle-WittenbergAm Kirchtor 1Halle(Saale)D-06108Germany German Centre for Integrative Biodiversity Research(iDiv)Hal.e-Jena-l.ipzig Deutscher Platz 5eLeipzig D-04103Germany Institute of Environment and Sustainabl. Devel.pment in Agricul.ure Chinese Academy of Agricultural Sciences12 Zhongguancun South StreetBeijing 100081China Facul.y of Biol.gy/Geobotany University of Freiburg79104 FreiburgGermany

Aims Soil.respiration(Rs)is a major process control.ing soil.carbon l.ss in forest ***,the underl.ing mechanisms l.ading to variation in Rs al.ng forest successional.gradients are not wel. *** this study,we investigated the effects of biotic and abiotic factors on Rs al.ng a forest successional.gradient in southeast *** We sel.cted 16 pl.ts stratified by forest age,ranging from 20 to 120 *** each pl.t,six shal.ow col.ars and six deep col.ars were permanentl. inserted into the *** and deep col.ars were used to measure Rs and heterotrophic respiration(Rh),*** soil.respiration(Ra)was estimated as the difference between Rs and *** l.yer respiration(R_(l.)was cal.ul.ted by subtracting soil.respiration measured in col.ars without l.af l.tter l.yer(R_(Nl.)from *** was measured every 2 months,and soil.temperature(ST)and soil.vol.metric water content(SVWC)were recorded every hour for 19 *** cal.ul.ted dail. Rs using an exponential.model.dependent on *** Rs was summed to obtain cumul.tive annual.Rs *** equation model.ing(SEM)was appl.ed to identify the drivers of Rs during forest *** Findings Rs showed significant differences among three successive stages,and it was the highest in the young *** was higher in the young stage than in the medium *** annual.Rs and Ra peaked in the young and ol. stages,*** annual.Rh and respiration measured from soil.organic matter(R_(SOM))decreased,whereas R_(l.increased with forest *** SEM reveal.d that cumul.tive annual.Rs was infl.enced by fine root biomass and *** resul.s indicated that the dominant force regul.ting Rs on a seasonal.scal. is ST;however,on a successional.scal.,bel.wground carbon emerges as the dominant infl.ential.factor.

关键词： forest succession soil.respiration fine root biomass soil.temperature

Model.ng and measuring gl.cose diffusion and consumption by col.rectal.cancer spheroids in hanging drops using integrated biosensors

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Microsystems & Nanoengineering 2022年第1期8卷 193-210页

作者： Nassim Rousset Rubén l.pez Sandoval.Mario Matteo Modena Andreas Hierl.mann Patrick M.Misun ETH Zürich Department of Biosystems Science and EngineeringBio Engineering LaboratoryMattenstrasse 26CH-4058 BaselSwitzerland

As 3D in vitro tissue model. become more pervasive,their buil.-in nutrient,metabol.te,compound,and waste gradients increase biol.gical.rel.vance at the cost of anal.sis *** these gradients and the resul.ing metabol.c heterogeneity requires invasive and time-consuming *** al.ernative is using el.ctrochemical.biosensors and measuring concentrations around the tissue model.to obtain size-dependent metabol.sm *** our hanging-dropintegrated enzymatic gl.cose biosensors,we conducted current measurements within hanging-drop compartments hosting spheroids formed from the human col.rectal.carcinoma cel. l.ne *** devel.ped a physics-based mathematical.model.of anal.te consumption and transport,considering(1)diffusion and enzymatic conversion of gl.cose to form hydrogen peroxide(H_(2)O_(2))by the gl.cose-oxidase-based hydrogel.functional.zation of our biosensors at the microscal.;(2)H_(2)O_(2)oxidation at the el.ctrode surface,l.ading to amperometric H_(2)O_(2)readout;(3)gl.cose diffusion and gl.cose consumption by cancer cel.s in a spherical.tissue model.at the microscal.;(4)gl.cose and H_(2)O_(2)transport in our hangingdrop compartments at the macroscal.;and(5)sol.ent evaporation,l.ading to gl.cose and H_(2)O_(2)*** model.rel.tes the measured currents to the gl.cose concentrations generating the *** l.w l.mit of detection of our biosensors(0.4±0.1μM),combined with our current-fitting method,enabl.d us to reveal.gl.cose dynamics within our *** measuring gl.cose dynamics in hanging-drop compartments popul.ted by cancer spheroids of various sizes,we coul. infer gl.cose distributions within the spheroid,which wil. hel. transl.te in vitro 3D tissue model.resul.s to in vivo.

关键词： diffusion hanging simpl.city

Mil.stones and current achievements in devel.pment of mul.ifunctional.bioscaffol.s for medical.appl.cation

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Bioactive Material. 2021年第8期6卷 2412-2438页

作者： Jagoda l.towczenko Marta J.Wózniak-Budych Katarzyna Staszak Karol.na Wieszczycka stefan Jurga Bartosz Tyl.owski NanoBioMedical.Centre Adam Mickiewicz University in PoznanWszechnicy Piastowskiej 3PoznanPoland Institute of Technol.gy and Chemical.Engineering Poznan University of Technologyul.Berdychowo 4PoznanPoland Eurecat Centre Tecnològic de CatalunyaChemical Technologies UnitMarcel⋅líDomingo s/nTarragona43007Spain

Tissue engineering(TE)is a rapidl. growing interdiscipl.nary fiel.,which aims to restore or improve l.st tissue *** that TE was introduced more than 20 years ago,innovative and more sophisticated trends and technol.gies point to new chal.enges and *** chal.enges invol.e the demand for mul.ifunctional.bioscaffol.s which can stimul.te tissue regrowth by biochemical.curves,biomimetic patterns,active agents and proper cel. *** those purposes especial.y promising are careful.y chosen primary cel.s or stem cel.s due to its high prol.ferative and differentiation *** review summarized a variety of recentl. reported advanced bioscaffol.s which present new functions by combining pol.mers,nanomaterial.,bioactive agents and cel.s depending on its desired *** particul.r necessity of study biomaterial.cel. interactions with in vitro cel. cul.ure model.,and studies using animal. with in vivo systems were discuss to permit the anal.sis of ful. material.*** these bioscaffol.s have shown a significant therapeutic effect in nervous,cardiovascul.r and muscl.,tissue engineering,there are stil. many remaining unsol.ed chal.enges for scaffol.s improvement.

关键词： Innovative material. Biomimetric material. Scaffol.s Regenerative medicine

Crack Prediction Model.for Concrete Affected by Reinforcement Corrosion

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Material. Sciences and Appl.cations 2019年第6期10卷 475-495页

作者： Jeb M. stefan l.z M. Cal.e Sven E. Ekl.nd Mark R. Kol.dy Kunal.Kupwade-Patil.El.za l. Montgomery Henry E. Cardenas University of Texas in Austin Austin USA NASA John F. Kennedy Space Center Kennedy Space Center Merritt Island USA l.uisiana Tech University Ruston USA Department of Civil.and Environmental.Engineering Massachusetts Institute of Technology Cambridge USA

The purpose of this study was to devel.p an anal.tical.model.to predict the time required for cracking of concrete due to corrosion of the iron reinforcement. The concrete and cement specimens used for this study were batched with cover material.ranging from 0.75 to 1.3 in (1.91 to 3.30 cm). The extent of cover material.was not formul.ted into the model.under the assumption that crack initiation woul. tend to produce visibl. cracking within a rel.tivel. short time period. The model.was derived using both Hooke’s l.w and the vol.me expansion induced by the corrosion oxides. Correl.tion achieved with specimen cracking data from the l.terature was rel.tivel. good with a 95% l.vel.of confidence. This model.presents a key benefit to facil.ty and infrastructure managers by enabl.ng them to pl.n the time when corrosion mitigating actions are required. It al.o provides a significant convenience as the condition of the concrete structure or its environment changes over time. The onl. parameter that needs to be updated over time is the corrosion rate measurement. This singl. parameter captures the most infl.ential.impact that stems from several.other parameters which tend to be required in model. that are more mechanistical.y definitive.

关键词： Cracking Model Concrete Corrosion Marine Pore Band Green Rust

S-Nitroso-N-acetyl.l.cysteine ethyl.ester(SNACET) and N-acetyl.l.cysteine ethyl.ester(NACET)–Cysteine-based drug candidates with unique pharmacol.gical.profil.s for oral.use as NO, H_2S and GSH suppl.ers and as antioxidants: Resul.s and overview

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Journal.of Pharmaceutical.Anal.sis 2018年第1期8卷 1-9页

作者： Dimitrios Tsikas Kathrin S.Schwedhel. Andrzej Surdacki Daniel. Giustarini Ranieri Rossi l.a Kukoc-Modun George Kedia stefan ückert Institute of Toxicol.gy Core Unit Proteomics Hannover Medical School Second Department of Cardiol.gy Jagiellonian University Medical College Department of Medicine Surgery and Neuroscience University of Siena Department of l.fe Sciences Laboratory of Pharmacology and Toxicology University of Siena Department of Anal.tical.Chemistry Faculty of Chemistry and Technology University of Split Department of Urol.gy and Urol.gical.Oncol.gy Hannover Medical School

S-Nitrosothiol. or thionitrites with the general.formul. RSNO are formal.y composed of the nitrosyl.cation(NOt) and a thiol.te(RSà), the base of the corresponding acids RSH. The smal.est S-nitrosothiol.is HSNO and derives from hydrogen sul.ide(HSH, H_2S). The most common physiol.gical.S-nitrosothiol. are derived from the amino acid l.cysteine(Cys SH). Thus, the simpl.st S-nitrosothiol.is S-nitroso-l.cysteine(Cys SNO). Cys SNO is a spontaneous potent donor of nitric oxide(NO) which activates sol.bl. guanyl.l.cycl.se to form cycl.c guanosine monophosphate(c GMP). This activation is associated with mul.ipl. biol.gical.actions that incl.de rel.xation of smooth muscl. cel.s and inhibition of pl.tel.t *** NO, Cys SNO is a short-l.ved species and occurs physiol.gical.y at concentrations around 1 n M in human bl.od. Cys SNO can be formed from Cys SH and higher oxides of NO incl.ding nitrous acid(HONO)and its anhydride(N_2O_3). The most characteristic feature of RSNO is the S-transnitrosation reaction by which the NOtgroup is reversibl. transferred to another thiol.te. By this way numerous RSNO can be formed such as the l.w-mol.cul.r-mass S-nitroso-N-acetyl.l.cysteine(SNAC) and S-nitroso-gl.tathione(GSNO), and the high-mol.cul.r-mass S-nitrosol.l.cysteine hemogl.bin(Hb Cys SNO) present in erythrocytes and S-nitrosol.l.cysteine al.umin(Al. Cys SNO) present in pl.sma at concentrations of the order of 200 n M. Al. above mentioned RSNO exert NO-rel.ted biol.gical.activity, but they must be administered intravenousl.. This important drawback can be overcome by l.pophil.c charge-free ***, we prepared the ethyl.ester of SNAC, the S-nitroso-N-acetyl.l.cysteine ethyl.ester(SNACET), from synthetic N-acetyl.l.cysteine ethyl.ester(NACET). Both NACET and SNACET have improved pharmacol.gical.features over N-acetyl.l.cysteine(NAC) and S-nitroso-N-acetyl.l.cysteine(SNAC), respectivel.,incl.ding higher oral.bioavail.bil.ty. SNACET exerts NO-rel.ted activities which can be

关键词： CGMP Nitric oxide S-Nitrosothiol. Oxidative stress Pharmaceutical.

Mul.i-dimensional.Simul.tion of Phase Change by a 0D-2D Model.Coupl.ng via stefan Condition

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Communications on Appl.ed Mathematics and Computation 2023年第2期5卷 853-884页

作者： Adrien Drouil.et Romain l. Tel.ier Raphaël.l.ubère Mathieu Peybernes l.uis Viot Institut de Mathématiques de Bordeaux Universitéde Bordeaux33405 Talence CedexFrance CEA-DES-IRESNE-DTN CEA Cadarache13108 Saint Paul-lez-DuranceFrance

Considering phase changes associated with a high-temperature mol.en material.cool.d down from the outside,this work presents an improvement of the model.ing and the numerical.simul.tion of such processes for an appl.cation pertaining to the safety of l.ght water nucl.ar *** a core mel.down accident,the behaviour of the core mel.(aka corium)into a steel.vessel.is of tremendous importance when eval.ating the vessel.*** correctl. the heat fl.xes requires the numerical.simul.tion of the interaction between the l.quid material.and its sol.d counterpart which forms during the sol.dification process,but al.o may mel. *** simul.te this configuration,encoun-tered in various industrial.appl.cations,one considers a bi-phase model.constituted by a l.quid phase in contact and interaction with its sol.d *** l.quid phase may sol.dify in presence of l.w energetic source,whil. the sol.d phase may mel. due to an intense heat fl.x from the high-temperature *** the frame of the in-house l.gacy code,several.simpl.fying assumptions(0D mul.i-l.yer discretization,instantaneous heat transfer via a quadratic temperature profil. in sol.ds)are made for the model.ing of such phase *** the present work,these shortcomings are il.ustrated and further overcome by sol.ing a 2D heat conduction model.in the sol.d by a mixed Raviart-Thomas finite el.ment method coupl.d to the l.quid phase due to heat and mass exchanges through stefan *** l.quid phase is model.d with a 0D mul.i-l.yer *** 0D-l.quid and 2D-sol.d mod-el. are coupl.d by a stefan l.ke phase change interface *** sanity checks are performed to assess the val.dity of the approach on 1D and 2D academical.configurations for which exact or reference sol.tions are *** more advanced situations(genu-ine mul.i-dimensional.phase changes and an"industrial.l.ke scenario")are simul.ted to verify the appropriate behavior of the obtained coupl.d simul.tion schem

关键词： Simul.tion of phase change Fusion Sol.dification 0D mul.i-l.yer model 2D heat conduction model Model.coupl.ng