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TWO nEW BROWn ALGAE FROM THE XISHA ISLAnDS,SOUTH cHInA SEA

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Journal of Oceanology and Limnology 1983年第2期1卷 185-189页

作者： c.K.Tseng Institute of Oceanology Academia Sinica

In our phycological trips to the Xisha Islands,Guangdong Province,South chinaSea in 1976 and 1980,two interesting brown algae had attracted our special *** them was a Hydroclathrus,evidently more delicate and slender than *** com-monly met with in the South china Sea *** other was a Turbinaria,characterizedby especially small *** studies of the two algae with other known speciesof the two genera concerned showed sufficient differences to warrant their statuses as un-

关键词： TWO nEW BROWn ALGAE FROM THE XISHA ISLAnDS,SOUTH cHInA SEA AST

crustal structure beneath Tien Shan orogenic belt and its adjacent regions from multi-scale seismic data

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Science china Earth Sciences 2017年第10期60卷 1769-1782页

作者： n.Ghani KHAn BAI Ling ZHAO JunMeng LI GuoHui M.Moklesur RAHMAn cHEnG cheng YAnG JianYa Key Laboratory of continental collision and Plateau Uplift Institute of Tibetan Plateau ResearchChinese Academy of Sciences Department of Earth Sciences COMSATS Institute of Information Technology (CIIT)

As one of the world's most active intracontinental mountain belts, Tien Shan has posed questions for researchers regarding the formation of different tectonic units and active shallow seismicity. Here, we used a huge data set comprising of 7094 earthquakes from local, regional and teleseismic seismic stations. We used waveform modeling and multi-scale double-difference earthquake relocation technique to better constrain the source parameters of the earthquakes. The new set of events provided us with better initial earthquake locations for further tomographic investigation. We found that reverse-faulting earthquakes dominate the whole study area while the fault plane solutions for earthquakes beneath the northwestern Tarim Basin and the Main Pamir Thrust are diverse. There is a low-velocity anomaly beneath Bashkaingdy at depth of 80 km, and high-velocity anomalies beneath central Tien Shan at shallower depths. These observations are the keys to understand the mechanism of Tien Shan's formation because of Tarim Basin northward and Kazakh Shield's southward subduction in the south and north respectively. Velocities beneath western Tien Shan are relatively high. We thus infer that the Western Tien Shan is relatively less deformed than the eastern Tien Shan primarily due to a relatively brittle mantle.

关键词： Tien Shan Earthquake relocation Velocity anomalies Differential subduction

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Journal of Materials Science & Technology 2022年第1期96卷 248-261页

作者： Seyedmohammad Tabaie Farhad Rézaï-Aria Bertrand c.D.Flipo Mohammad Jahazi Department of Mechanical Engineering École de Technologie Supérieure(ÉTS)H3C 1K3 MontrealQCCanada Institut clément Ader(IcA) Universitéde ToulouseCNRSIMT Mines AlbiINSAUPSISAECampus Jarlard81013 AlbiFrance TWI Ltd Granta ParkGreat AbingtonCambridge CB216ALUnited Kingdom

The continuous growth in the manufacture of aerospace components such as blisks has led to an increase in the application of different hybrid materials fabricating methods,and thus the requirements for joining and strengthening of dissimilar *** to this goal,selective laser melted(SLM)Inconel718 was joined with forged AD730^(TM)nickel-based superalloy through linear friction welding(LFW)in this *** variation,specifically with respect to secondary phases precipitation was *** microhardness and strengthening mechanisms of the weldment were also *** precipitation(volume fraction and size of particles)at different regions of both sides of the weld line was *** to the weld line,the dissolution ofγ’/γ"and Laves phases and grain refinement occurred which reveals the effects of both compression strain and high temperature on recrystallization and high degree of elemental diffusion in the weld zone(WZ).It is shown that the size,volume fraction,and shape of secondary phases increased and changed(from spherical to long-striped for Laves particles)as we went from the WZ toward the base ***,the measured microhardness indicated that the strength of AD730^(TM)alloy depends significantly on the grain size,while strength in SLM Inconel 718 was dominated by shape(or size)and the presence of secondary phases(γ’/γ"and Laves).

关键词： Additive manufacturing Linear friction welding ni-based superalloy Precipitation Microhardness Strengthening mechanisms

Effect of natural organic matter on thallium and silver speciation

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Journal of Environmental Sciences 2020年第7期32卷 185-192页

作者： Loïc A.Martin caroline Simonucci Sétareh Rad Marc F.Benedetti Universitéde Paris Institut de physique du globe de ParisCNRSF-75005 ParisFrance IRSn PSE-ENV/SIRSE/LER-NordBP 1792262 Fontenay-aux-Roses CedexFrance catchment and Eco-Hydrology Research Group Luxembourg Institute of Science and TechnologyL-4422 BelvauxLuxembourg BRGM Unitéde Géomicrobiologie et Monitoring Environnemental45060 Orléans Cedex 2France

natural organic matter(nOM)is known to play an important role in the transport and binding of trace metal elements in aquatic and soil *** is a pollutant for which the extent of the role played by nOM is poorly ***,this study investigates thallium(Ⅰ)and its complexation to a purified humic substance as proxy for *** were performed with the Donnan Membrane Technique to separate,for the first time,the free Tl^+ion from its complexed form in the bulk *** pH and concentrations were investigated at constant ionic strength and constant nOM proxy concentrations in *** results were described with nIcA-Donnan *** complexation was compared to silver complexation using literature data and using the same nIcA-Donnan *** for these two cations(Tl^+and Ag^+)are reported in this article,for the first *** display low thallium complexation to the nOM proxy while silver competes with divalent cations for the nOM binding *** speciation for dissolved thallium highlights the dominance of free thallium(Tl^+)in solution whereas Tl-nOM complexes contribute roughly 15%to total Tl(Ⅰ)species in river and lake type *** results are obtained for soil solutions,Tl-bound to nOMnt land use and geochemistry.

关键词： Thallium Organic matter Speciation nIcA-Donnan model Soil Water

nickel ferrite spinel as catalyst precursor in the dry reforming of methane:Synthesis,characterization and catalytic properties

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Journal of natural Gas chemistry 2012年第5期21卷 595-604页

作者： Rafik Benrabaa Hamza Boukhlouf Axel Lfberg Annick Rubbens Rose-nelle Vannier Elisabeth Bordes-Richard Akila Barama Laboratoire de Matériaux catalytiques & catalyse en chimie Organique Faculté de ChimieUSTHBBP32 El Alia16111 Bab EzzouarAlgerAlgérie Unité de catalyse et de chimie du Solide UMR CNRS 8181Ecole Nationale Supérieure de Chimie de LilleUniversitédes Sciences et Technologies de LilleCité Scientif ique59655 Villeneuve d'AscqFrance

Dry reforming of methane by cO2 using nickel ferrite as precursor of catalysts was *** ferrite crystalline particles were prepared by coprecipitation of nitrates with naOH or ammonia followed by calcination,or by hydrothermal synthesis without calcination *** textural and structural properties were determined by a number of analysis methods,including X-ray diffraction （XRD）,Raman spectroscopy and X-ray photoelectron spectroscopy （XPS）,among which X-ray diffraction （XRD） was at room and variable *** synthesized oxides showed the presence of micro or nanoparticles of niFe2O4 inverse spinel,but Fe2O3 （hematite） was also present when ammonia was used for *** reducibility by hydrogen was studied by temperature-programmed reduction （TPR） and in situ XRD,which showed the influence of the preparation *** surface area （BET）,particle size （Rietveld refinement）,as well as surface ni/Fe atomic ratio （XPS） and the behavior upon reduction varied according to the synthesis *** catalytic reactivity was investigated using isopropanol decomposition to determine the acid/base *** catalytic performance of methane reforming with cO2 was measured with and without the pre-treatment of catalysts under H2 in 650-800 c *** catalytic conversions of methane and cO2 were quite low but they increased when the catalysts were pre-reduced.A significant contribution of reverse water gas shift reaction accounted for the low values of H2 /cO *** coking was observed as shown by the reoxidation step performed after the catalytic *** possible formation of nickel-iron alloy observed during the study of reducibility by hydrogen was invoked to account for the catalytic behavior.

关键词： dry reforming of methane niFe2O4 spinel hydrothermal synthesis coprecipitation isopropanol decomposition

应用正交偶极子测井资料测量EDA地层的横波各向异性

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地球物理学报 1999年第2期42卷 277-286页

作者：陶果 c.H.cheng M.n.Toksoz 石油大学地球科学系岩石物理实验室北京昌平102200 Earth Resources Laboratory MIT

采用３种分析ＥＤＡ地层横波各向异性的技术处理了从ＷｙｏｍｉｎｇＰｏｗｄｅｒ河谷用正交偶极子测井取得的数据资料。这些处理技术基于挠曲波在各向异性介质中发生分裂的现象而模拟ＶＳＰ中的横波数据处理。四组分的正交偶极子测井数... 详细信息

采用３种分析ＥＤＡ地层横波各向异性的技术处理了从ＷｙｏｍｉｎｇＰｏｗｄｅｒ河谷用正交偶极子测井取得的数据资料。这些处理技术基于挠曲波在各向异性介质中发生分裂的现象而模拟ＶＳＰ中的横波数据处理。四组分的正交偶极子测井数据是用Ｓｃｈｌｕｍｂｅｒｇｅｒ公司的测井仪从井深３５５０ｍ的一段长为５６ｍ的垂向裂缝发育的地层中采集的。根据对各发射－接收器组记录数据处理结果的一致性与方差来看，非正交旋转法效果最好。但线性变换法的结果也是可以接受的。线性变换法的优点是节省机时。从这组数据处理的结果来看，极化能谱法计算量相对较大并且对噪音的影响较敏感。

关键词：测井偶极子测井 EDA地层横波各向异性

Brain-targeting,acid-responsive antioxidant nanoparticles for stroke treatment and drug delivery

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Bioactive Materials 2022年第10期7卷 57-65页

作者： Shenqi Zhang Bin Peng Zeming chen Jiang Yu Gang Deng Youmei Bao chao Ma Fengyi Du Wendy c.Sheu W.Taylor Kimberly J.Marc Simard Daniel coman Qianxue chen Fahmeed Hyder Jiangbing Zhou Kevin n.Sheth Department of neurosurgery USA Department of Biomedical Engineering USA Department of Radiology and Biomedical Imaging USA Department of neurology Yale UniversityNew HavenCT06510USA Department of neurosurgery Renmin Hospital of Wuhan UniversityWuhanHubei430060China Department of neurology Division of Neurocritical CareMassachusetts General HospitalBostonMAUSA Department of neurosurgery University of Maryland School of MedicineBaltimoreMD21201USA

Stroke is the leading cause of death and ***,there is no effective pharmacological treatment for this disease,which can be partially attributed to the inability to efficiently deliver therapeutics to the *** we report the development of natural compound-derived nanoparticles(nPs),which function both as a potent therapeutic agent for stroke treatment and as an efficient carrier for drug delivery to the ischemic ***,we screened a collection of natural nanomaterials and identified betulinic acid(BA)as one of the most potent antioxidants for stroke ***,we engineered BA nPs for preferential drug release in acidic ischemic tissue through chemically converting BA to betulinic amine(BAM)and for targeted drug delivery through surface conjugation of AMD3100,a cXcR4 *** resulting AMD3100-conjugated BAM nPs,or A-BAM nPs,were then assessed as a therapeutic agent for stroke treatment and as a carrier for delivery of nA1,a neuroprotective *** show that intravenous administration of A-BAM nPs effectively improved recovery from stroke and its efficacy was further enhanced when nA1 was *** to their multifunctionality and significant efficacy,we anticipate that A-BAM nPs have the potential to be translated both as a therapeutic agent and as a drug carrier to improve the treatment of stroke.

关键词： Drug delivery Acid-triggered release Antioxidant nanoparticles nA1 Ischemic stroke

Review on the management of cardiovascular risk factors in the elderly

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Journal of Geriatric cardiology 2022年第11期19卷 894-927页

作者： Magali González-colaço Harmand María del Mar García-Sanz Antònia Agustí Pablo césar Prada-Arrondo Alberto Domínguez-Rodríguez Beatriz Grandal-Leirós David Peña-Otero natalia negrín-Mena Jesús Javier López-Hernández Pablo Díez-Villanueva Department of Internal Medicine-Geriatric Medicine Hospital Universitario Nuestra Señora de CandelariaSanta Cruz de TenerifeSpain Universidad Europea de canarias Faculty of Health SciencesLa OrotavaSpain clinical Pharmacology Department Hospital Universitario Marqués de ValdecillaSantanderSpain clinical Pharmacology Department.Hospital Vall d'Hebron BarcelonaSpain cardiac Surgery Department Hospital Universitario de CanariasLa LagunaTenerifeSpain cardiology Department Hospital Universitario de CanariasLa LagunaTenerifeSpain Ortogeriatric Department.Hospital Universitario de canarias La LagunaTenerifeSpain Subdepartment of Health care Hospital Universitario Marqués de ValdecillaServicio Cántabro de SaludSantanderSpain Instituto de Investigación Sanitaria Gregorio Marañón(liSGM)y Valdecilla(IDIVAL) Spain Hospital Universitario de canarias Sistema Canario de SaludTenerifeSpain Primary care Management Servicio Cántabro de SaludSpain cardiology Department Hospital de la PrincesaMadridSpain

cardiovascular risk factors(cVRF)are very prevalent in the elderly population and in addition to predisposing to cardiovascular disease they are related to functional decline,which limits the quality of life in this *** objective of this work is to offer a review of the current evidence in the management of cVRF in the elderly *** search strategy was executed in PubMed,*** and Embase,to search for clinical trials,observational cohort or cross-sectional studies,reviews,and clinical practice guidelines focused or including elderly *** results provided were refined after reading the title and abstract,as well as elimination of duplicates,and were finally identified and assessed following the GRADE methodology.A total of 136 studies were obtained for all predefined risk factors,such as sedentary lifestyle,smoking,obesity and metabolic syndrome,hypertension,diabetes mellitus,dyslipidemia and *** described the results of the studies identified and assessed according to their methodological quality in different recommendation sections:diagnostic and prevention,intervention,or treatment in the elderly *** the main limitation to the results of this review,there is the lack of quality studies whose target population is elderly *** issue limits the recommendations that can be made in this *** to this reason,comprehensive geriatric assessment seems the best tool currently available to implement the most appropriate treatment plans based on the baseline situation and comorbidity of each elderly patient.

关键词： prevention elderly finally

Effect of Ringer's Solution on Wear and Friction of Stainless Steel 316L after Plasma Electrolytic nitrocarburising at Low Voltages

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Journal of Materials Science & Technology 2011年第10期27卷 906-912页

作者： n.Afsar Kazerooni M.E.Bahrololoom M.H.Shariat F.Mahzoon T.Jozaghi Department of Materials Science and Engineering Shiraz University

A plasma electrolytic nitrocarburising （PEn/c） process was performed on stainless steel 316L to improve the surface properties for using as medical implants. A bath was optimised to reduce the required voltage to 150 volts. Aqueous urea-based solutions with 10% nH4cl were prepared with slightly different amounts of na2cO3 to optimise the electrolyte composition. The surface and the cross-section morphologies were studied by scanning electron microscopy. The microstructure and the chemical composition of samples were investigated by X-ray diffraction （XRD） and energy dispersive X-ray （EDX） techniques. The microstructure of the outer layer of the coatings was found to be a complex oxide containing cr and Fe. The wear properties of the samples were examined by using a pin on disk wear test with Ringer＇s solution and were compared with their wear properties in the ambient atmosphere. The Ringe（s solution acted as a lubricant, reducing friction coefficient. Hardness and roughness were also studied. The bath with the composition of 10% nH4cI and 3% na2cO3 exhibited the best tribological properties. The results showed that the tribological properties of treated samples were improved and the wear mechanism was abrasion of the pin.

关键词： Plasma electrolytic nitrocarburising Ringer's solution Tribological properties