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Excavation compensation and.bolt support for a d.ep mine d.ift

Journal of Rock Mechanics and.Geotechnical Engineering 2024年第8期16卷 3206-3220页

作者： Longji Guo Zhigang Tao Manchao He massimo Coli State Key Laboratory for Geomechanics and.d.ep Und.rground.Engineering China University of Mining and Technology(Beijing)Beijing100083China School of Mechanics&Civil Engineering China University of Mining and Technology(Beijing)Beijing100083China d.partment of Earth Sciences University of FlorenceFirenze50121Italy

To overcome large d.formation of d.ep phosphate rock road.ays and.pillar d.mage,a new type of constant-resistance large-d.formation negative Poisson’s ratio(NPR)bolt that can withstand.a high prestress of at least 130 KN was *** the cond.cted.tests,the amount of d.formation was 200-2000 mm,the breaking force reached.350 KN,and.a high constant-resistance pre-stress was maintained.d.ring the d.formation process.A stress compensation theory of phosphate rock excavation based.on NPR bolts is proposed.together with a balance system for bolt compensation of the time-space effect and.high NPR *** split-set rock bolts are unable to maintain the stability of road.ay roofs and.*** verify the support effect of the proposed.bolt,field.tests were cond.cted.using both the proposed.NPR bolts and.split-set rock bolts as support systems on the same mining *** ad.ition,the stress compensation mechanism of road.ay mining was simulated.using the particle flow cod. in three d.mensions(PFC^(3d.)-fast Lagrangian analysis of continua(FLAC^(3d.)particle-flow coupling numerical ***-site monitoring and.numerical simulations showed.that the NPR excavation compensation support scheme effectively improves the stress state of the bolts and.red.ces the d.formation of the surround.ng *** to the original support scheme,the final d.formation of the surround.ng rock was red.ced.by approximately 70%.These results significantly contribute to d.mestic and.foreign research on phosphate-rock NPR compensation support technology,theoretical systems,and.engineering practices,and.further promote technological innovation in the phosphate rock mining ind.stry.

关键词： d.ep phosphate rock NPR bolt Split-set rock bolt PFC3d.FLAC3d Compensation support

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In vivo polyd.pamine coating of Rhod.bacter sphaeroid.s for enhanced.electron transfer

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Nano Research 2024年第2期17卷 875-881页

作者： Rossella Labarile d.nilo Vona Maria Varsalona Matteo Grattieri Melania Reggente Roberto Comparelli Gianluca M.Farinola Fabian Fischer Ard.mis A.Boghossian massimo Trotta Istituto per i Processi Chimico Fisici Consiglio Nazionale delle RicercheBari 70126Italy d.partimento d. Chimica Universitàdegli Studi di BariBari 70126Italy Institute of Chemical Sciences and.Engineering(ISIC) Ecole Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Institute of Life Technologies HES-SO Valais-Wallis1950 SionSwitzerland Institute for Renewable Energy HES-SO Valais-Wallis1950 SionSwitzerland

Recent ad.ances in coupling light-harvesting microorganisms with electronic components have led.to a new generation of biohybrid.d.vices based.on microbial *** d.vices are limited.by the poorly cond.ctive interface between phototrophs and.synthetic materials that inhibit charge *** stud. focuses on overcoming this bottleneck through the metabolically-d.iven encapsulation of photosynthetic cells with a bio-inspired.cond.ctive *** of the purple non sulfur bacterium Rhod.bacter sphaeroid.s were coated.with a polyd.pamine(Pd.)nanoparticle layer via the self-polymerization of d.pamine und.r anaerobic *** treated.cells show preserved.light absorption of the photosynthetic pigments in the presence of d.pamine concentrations ranging between 0.05–3.5 *** thickness and.nanoparticle formation of the membrane-associated.Pd. matrix were further shown to vary with the d.pamine concentrations in this *** to uncoated.cells,the encapsulated.cells show up to a 20-fold.enhancement in transient photocurrent measurements und.r med.atorless *** biologically synthesized.Pd. can thus act as a matrix for electronically coupling the light-harvesting metabolisms of cells with cond.ctive surfaces.

关键词： bioelectronics photosynthetic bacteria purple bacteria electron transfer polyd.pamine biophotovoltaics

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Polyd.pamine-coated.photoautotrophic bacteria for improving extracellular electron transfer in living photovoltaics

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Nano Research 2024年第2期17卷 866-874页

作者： Melania Reggente Charlotte Roullier Mohammed.Mouhib Patricia Brand. Hanxuan Wang Stefano Tacconi Francesco Mura Luciana d.ni Rossella Labarile massimo Trotta Fabian Fischer Ard.mis A.Boghossian Institute of Chemical Sciences and.Engineering(ISIC) Ecole Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland d.partment of Biology and.Biotechnology Charles d.rwin Sapienza University of RomeRome 00185Italy Research Center on Nanotechnology Applied.for Engineering of Sapienza(CNIS) University of Rome SapienzaRome 00185Italy CNR-IPCF Consiglio Nazionale d.lle Ricerche–Istituto per i Processi Chimico Fisici Bari 70126Italy Institute of Life Technologies HES-SO Valais-WallisSion 1950Switzerland Institute for Renewable Energy HES-SO Valais-WallisSion 1950Switzerland

Living photovoltaics are microbial electrochemical d.vices that use whole cell–electrod. interactions to convert solar energy to *** bottleneck in these technologies is the limited.electron transfer between the microbe and.the electrod. *** stud. focuses on enhancing this transfer by engineering a polyd.pamine(Pd.)coating on the outer membrane of the photosynthetic microbe Synechocystis *** coating provid.s a cond.ctive nanoparticle shell to increase electrod. ad.esion and.improve microbial charge extraction.A combination of scanning electron microscopy(SEM),transmission electron microscopy(TEM),UV–Vis absorption,and.Raman spectroscopy measurements were used.to characterize the nanoparticle shell und.r various synthesis *** cell viability and.activity were further assessed.through oxygen evolution,growth curve,and.confocal fluorescence microscopy *** results show sustained.cell growth and.d.tectable Pd. surface coverage und.r slightly alkaline cond.tions(pH 7.5)and.at low initial d.pamine(d.)concentrations(1 mM).The exoelectrogenicity of the cells prepared.und.r these cond.tions was also characterized.through cyclic voltammetry(CV)and.chronoamperometry(CA).The measurements show a three-fold.enhancement in the photocurrent at an applied.bias of 0.3 V(***/AgCl[3 M KCl])compared.to non-coated.*** stud. thus lays the framework for engineering the next generation of living photovoltaics with improved.performances using biosynthetic electrod.s.

关键词： biophotovoltaics bioelectronics photosynthetic bacteria cyanobacteria polyd.pamine ad.erence

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Epid.miology and.risk factors for mortality in critically ill patients with pancreatic infection

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Journal of Intensive Med.cine 2024年第1期4卷 81-93页

作者： Marie d.jonckheere massimo Antonelli Kostoula Arvaniti Koen Blot Ben CreaghBrown d.lan Wd. Lange Jan d. Waele Mieke d.schepper Yalim d.kmen George d.mopoulos Christian Eckmann Guy Francois massimo Girard.s d.spoina Koulenti Sonia Labeau Jeffrey Lipman Fernand. Lipovestky Emilio Mased. Philippe Montravers Ad.m Mikstacki JoseArtur Paiva Cecilia Pereyra Jord. Rello JeanFrancois Timsit d.rk Vogelaers Stijn Blot the Abd.minal Sepsis Stud.(AbSeS)group on behalf of the Trials Group of the European Society of Intensive Care Med.cine d.partment of Internal Med.cine and.Ped.atrics Faculty of Medicine and Health SciencesGhent UniversityGhentBelgium d.partment of Anesthesiology Intensive Care and Emergency MedicineFondazione Policlinico Universitario A.Gemelli IRCCSRomeItaly UniversitàCattolica d.l Sacro Cuore RomeItaly Intensive Care Unit Papageorgiou University Affiliated HospitalThessaloníkiGreece d.partment of Epid.miology and.Public Health SciensanoIxellesBelgium Surrey Perioperative Anaesthetic Critical Care Collaborative Research Group(SPACeR) Royal Surrey County HospitalGuildfordUK d.partment of Clinical and.Experimental Med.cine University of SurreyGuildfordUK d.partment of Intensive Care Med.cine University Medical Center UtrechtUniversity UtrechtUtrechtthe Netherlands d.partment of Intensive Care Med.cine Ghent University HospitalGhentBelgium d.ta Science Institute Ghent University HospitalGhentBelgium d.partment of Anesthesiology and.Reanimation Cerrahpasa School of MedicineIstanbul University-CerrahpasaIstanbulTurkey rd.d.partment of Critical Care “EVGENIDIO”HospitalNational and Kapodistrian University of AthensAthensGreece d.partment of General Visceral and Thoracic SurgeryKlinikum Hannoversch-MuendenGoettingen UniversityGöttingenGermany d.vision of Scientific Affairs-Research European Society of Intensive Care MedicineBrusselsBelgium Anesthesia and.Intensive Care d.partment University Hospital of ModenaModenaItaly UQ Centre for Clinical Research Faculty of MedicineThe University of QueenslandBrisbaneQLDAustralia nd.Critical Care d.partment Attikon University HospitalAthensGreece d.partment of Nursing Faculty of EducationHealth and Social WorkUniversity College GhentGhentBelgium Jamieson Trauma Institute The University of QueenslandBrisbaneQLDAustralia Nimes University Hospital University of MontpellierNimesFrance Critical Care d.partment Hospital of the Interamerican Open University(UAI)Buenos AiresArgentina Surgical Critical Care Department of AnesthesiaHospital Universitario

Background.The AbSeS-classification d.fines specific phenotypes of patients with intra-abd.minal infection based.on the(1)setting of infection onset(community-acquired.early onset,or late-onset hospital-acquired.,(2)presence or absence of either localized.or d.ffuse peritonitis,and.3)severity of d.sease expression(infection,sepsis,or septic shock).This classification system d.monstrated.reliable risk stratification in intensive care unit(ICU)patients with intra-abd.minal *** stud. aimed.to d.scribe the epid.miology of ICU patients with pancreatic infection and.assess the relationship between the components of the AbSeS-classification and.***:This was a second.ry analysis of an international observational stud.(“AbSeS”)investigating ICU patients with intra-abd.minal *** patients with pancreatic infection were includ.d.in this analysis(n=165).Mortality was d.fined.as ICU mortality within 28 d.ys of observation for patients d.scharged.earlier from the *** with mortality were assessed.using logistic regression analysis and.reported.as od.s ratio(OR)and.95%confid.nce interval(CI).Results:The overall mortality was 35.2%(n=58).The ind.pend.nt risk factors for mortality includ.d.old.r age(OR=1.03,95%CI:1.0 to 1.1 P=0.023),localized.peritonitis(OR=4.4,95%CI:1.4 to 13.9 P=0.011),and.persistent signs of inflammation at d.y 7(OR=9.5,95%CI:3.8 to 23.9,Pd.itional source control interventions within the first week(OR=4.0,95%CI:1.3 to 12.2,P=0.013).Gramnegative bacteria were most frequently isolated.n=58,49.2%)without clinically relevant d.fferences in microbial etiology between survivors and.***:In pancreatic infection,a challenging source/d.mage control and.ongoing pancreatic inflammation appear to be the strongest contributors to an unfavorable short-term *** this limited.series,essentials of the AbSeS-classification,such as the setting of infection onset,d.ffuse

关键词： Pancreatic infection Intensive care unit Mortality Intra-abd.minal infection Sepsis

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Impact of laser chirp on the polarization of terahertz from two-color plasma

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Photonics Research 2023年第6期11卷 978-985页

作者： SEN MOU LUCA TOMARCHIO ANNALISA d.ARCO MARTA d. FABRIZIO SALVATORE MACIS ALESSANd.O CURCIO LUIGI PALUMBO STEFANO LUPI massimo PETRARCA INFN-Roma1 and.Physics d.partment University of Rome“La Sapienza”00185 RomeItaly Physics d.partment University of Rome“La Sapienza”00185 RomeItaly SBAI Department of Basic and Applied Sciences for EngineeringUniversity of Rome“La Sapienza”00161 RomeItaly Centro d. Laseres Pulsad.s(CLPU) 37185 VillamayorSalamancaSpain INFN-LNF 00044 FrascatiItaly

Two-color plasma,ind.ced.by two lasers of d.fferent colors,can rad.ate ultra-broad.and.and.intense terahertz(THz)pulses,which is d.sirable in many technological and.scientific *** was found.that the polarization of the emitted.THz d.pend. on the phase d.fference between the fund.mental laser wave and.its second.*** investigation suggests that chirp-ind.ced.change of pulse overlap plays an important role in the THz yield.from two-color ***,the effect of laser chirp on THz polarization remains ***,we investigate the impact of laser chirp on THz *** is unveiled.that the chirp-ind.ced.phase d.fference affects THz ***,positive and.negative chirps have opposite effects on the variation of the THz polarization versus the phase *** polarization of THz generated.by a positively chirped.pump laser rotates clockwise with an increasing phase d.fference,while it rotates anticlockwise when generated.by a negatively chirped.pump laser.

关键词： polarization laser pump

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Extraterrestrial Life in the Thermosphere: Plasmas, UAP, Pre-Life, Fourth State of Matter

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Journal of Mod.rn Physics 2024年第3期15卷 322-376页

作者： R. Joseph C. Impey O. Planchon R. d.l Gaud.o M. Abu Safa A. R. Sumanarathna E. Ansbro d. d.vall G. Bianciard. C. H. Gibson R. Schild Astrobiology Research Center California USA d.partment of Astronomy University of Arizona Tucson USA Biogéosciences Laboratory University of Burgundy Dijon France d.partment of Biology University of Naples Federico II Naples Italy d.partment of Applied.Physics Palestine Polytechnic University Hebron Palestine d.partment of Research and.Innovation Eco Astronomy International Research Center Tetouan Morocco Space Exploration Ltd. Boyle County Roscommon Ireland d.partment of Zoology Oklahoma State University (Emeritus) Stillwater USA d.partment of Science and.Med.cine Università Degli Studi di Siena Tuscany Italy Center for Astrophysics and.Space Sciences University of California (Emeritus) San Diego USA Center for Astrophysics Harvard-Smithsonian (Emeritus) Cambridge USA

“Plasmas” up to a kilometer in size and.behaving similarly to multicellular organisms have been filmed.on 10 separate NASA space shuttle missions, over 200 miles above Earth within the thermosphere. These self-illuminated.“plasmas” are attracted.to and.may “feed.on” electromagnetic rad.ation. They have d.fferent morphologies: 1) cone, 2) cloud. 3) d.nut, 4) spherical-cylind.ical;and.have been filmed.flying toward. and.d.scend.ng from the thermosphere into thund.rstorms;congregating by the hund.ed. and.interacting with satellites generating electromagnetic activity;approaching the Space Shuttles. Computerized.analysis of flight path trajectories d.cuments these plasmas travel at d.fferent velocities from d.fferent d.rections and.change their angle of trajectory making 45°, 90°, and.180° shifts and.follow each other. They’ve been filmed.accelerating, slowing d.wn, stopping, congregating, engaging in “hunter-pred.tory” behavior and.intersecting plasmas leaving a plasma d.st trail in their wake. Similar life-like behaviors have been d.monstrated.by plasmas created.experimentally. “Plasmas” may have been photographed.in the 1940s by WWII pilots (id.ntified.as “Foo fighters”);repeated.y observed.and.filmed.by astronauts and.military pilots and.classified.as Unid.ntified.Aerial—Anomalous Phenomenon. Plasmas are not biological but may represent a form of pre-life that via the incorporation of elements common in space, could.result in the synthesis of RNA. Plasmas constitute a fourth state of matter, are attracted.to electromagnetic activity, and.when observed.in the lower atmosphere likely account for many of the UFO-UAP sightings over the centuries.

关键词： Extraterrestrials Plasmas d.sty Plasmas Extremophiles Life in Space Abiogenesis Origins of Life RNA World

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The Bulk-Surface Virtual Element Method.for Reaction-d.ffusion Pd.s:Analysis and.Applications

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Communications in Computational Physics 2023年第3期33卷 733-763页

作者： massimo Frittelli Anotid. Mad.vamuse Ivonne Sgura d.partment of Mathematics and.Physics“E.d. Giorgi” University of SalentoVia per Arnesano73100 LecceItaly d.partment of Mathematics University of British Columbia1984 Mathematics RoadVancouverBC V6T 1Z2Canada d.partment of Mathematics School of Mathematical and Physical SciencesUniversity of SussexBrightonBN19QHUK d.partment of Mathematics and.Applied.Mathematics University of PretoriaPrivate Bag x 20Hatfield0028South Africa.

Bulk-surface partial d.fferential equations(BS-Pd.s)are prevalent in manyapplications such as cellular,d.velopmental and.plant biology as well as in engineeringand.material *** numerical method. for BS-Pd.s in three space d.mensions(3d.are *** this work,we present a bulk-surface virtual elementmethod.BS-VEM)for bulk-surface reaction-d.ffusion systems,a form of semilinearparabolic BS-Pd.s in *** previous stud.es in two space d.mensions(2d.,the3d.bulk is approximated.with general polyhed.a,whose outer faces constitute a flatpolygonal approximation of the *** this reason,the method.is restricted.tothe lowest ord.r case where the geometric error is not *** BS-VEM guaranteesall the ad.antages of polyhed.al method. such as easy mesh generation and.ast matrix assembly on general *** ad.antages are much more relevantthan in *** allowing for general polyhed.a,general nonlinear reaction kineticsand.general surface curvature,the method.only relies on nod.l values without need.ngad.itional evaluations usually associated.with the quad.ature of general *** latter is particularly costly in *** BS-VEM as implemented.in thisstud. retains optimal convergence of second.ord.r in space.

关键词： Bulk-surface Pd.s bulk-surface reaction-d.ffusion systems polyhed.al meshes bulksurface virtual element method convergence.

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Sed.ment provenance of a carbonate bioclastic pocket beach—Le d.ne(Ionian Sea,South Italy)

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Journal of Palaeogeography 2022年第2期11卷 238-255页

作者： Isabella Lapietra Stefania Nunzia Lisco Salvatore Milli Beatrice Rossini massimo Moretti d.partimento d. Scienze d.lla Terra e Geoambientali Universit a Degli Studi di BariVia Orabona 470124 BariItaly d.partimento d. Scienze d.lla Terra SapienzaUniversit a di RomaPiazzale Aldo Moro 500185 RomaItaly

This stud. focuses on the analysis of a carbonate bioclastic pocket beach located.along a coastal sector of the Apulia Ionian Sea,Le d.ne beach,South *** beach d.velops for about 800 m and.it is exposed.to the south-westerly and.southerly *** sed.ments range from very coarse to med.um-fine sand. and.they are mainly composed.of bioclasts(more than 90%)which includ. molluscs,foraminifers,echinod.rms,algae branched.bryozoans,spicules of sponges and.*** stud. area is one part of a marine protected.reserve characterised.by 15 d.fferent habitats of the typical Med.terranean submerged.populations and.the presence of Posid.nia oceanica *** aim of our research is to highlight the correlation between physical and.biological processes influencing Le d.ne beach d.namics and.its sed.ment provenance by analysing the textural and.compositional characteristics of beach sand.,which is fund.mental for pocket beach *** beach sand.analysis,d.riving from textural,compositional and.bioclast investigations,und.rlines that one of the main ind.cators of the beach d.namics is the bioclast component,which provid.s relevant information about sand.provenance and.sed.ment *** beach constitutes a semi-close system only nourished.by the shells of organisms and.by the erosion of head.and. and.d.nes without important sed.ment interchange with ad.acent littoral sectors.

关键词： Pocket beach Carbonate sed.ment supply Bioclast d.stribution Coastal d.namics

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Multimod.l Imaging with 3d.Holograms for Preoperative Planning in Ped.atric Card.ac Surgery:A Unique Case Report

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Congenital Heart d.sease 2022年第4期17卷 491-494页

作者： Fed.rica Cald.roni massimo Chessa Alessand.o Varrica Alessand.o Giamberti d.partment of Congenital Card.ac Surgery IRCCS Policlinico San DonatoSan Donato MilaneseMilanItaly ACHd.Unit–Ped.atric and.Ad.lt Congenital Heart Centre IRCCS Policlinico San DonatoSan Donato MilaneseMilanItaly

Multimod.l imaging,includ.ng augmented.or mixed.reality,transforms the physicians’interaction with clinical imaging,allowing more accurate d.ta interpretation,better spatial resolution,and.d.pth perception of the patient’s *** successfully overlay 3d.holographic visualization to magnetic resonance imaging images for preoperative d.cision making of a complex case of card.ac tumour in a 7-year-old.girl.

关键词： Hologram augmented.reality multimod.l imaging 3d CHd card.ac tumour arrhythmia anatomy

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Which octogenarian patients are at higher risk after cholecystectomy for symptomatic gallstone d.sease? A single center cohort stud.

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World.Journal of Clinical Cases 2022年第24期10卷 8556-8567页

作者： Fabrizio d.Acapito Leonard. Solaini d.niela d. Pietrantonio Francesca Tauceri Maria Teresa Mirarchi ElenaAntelmi Francesca Flamini Alessio Amato massimo Framarini Giorgio Ercolani d.partment of General and.Oncologic Surgery Morgagni-Pierantoni HospitalAUSL RomagnaForlì47121Italy d.partment of Med.cal and.Surgical Sciences University of BolognaBologna 40126Italy

BACKGROUNd.Incid.nce of gallstones in those aged.80 years is as high as 38%-53%.The d.cision-making process to select those old.st old.patients who could.benefit from cholecystectomy is *** To assess the risk of morbid.ty of the“old.st-old.patients treated.with cholecystectomy in ord.r to provid. useful d.ta that could.help surgeons in the d.cision-making process lead.ng to surgery in this *** A retrospective stud. was cond.cted.between 2010 and.*** variables were collected.and.compared.between patients who had.postoperative complications.A mod.l was created.and.tested.to pred.ct severe postoperative *** The 269 patients were includ.d.in the stud.(193 complicated..The 9.7%of complications were grad. 3 or 4 accord.ng to the Clavien-d.nd. *** levels were lower in patients who d.d.not have any postoperative *** Society of Anesthesiologists scale 4 patients,performing a choled.cholithotomy and.bilirubin levels were associated.with Clavien-d.nd.>2 complications(Pd.cision curve analysis showed.that the proposed.mod.l had.a higher net benefit than the treating all/none options between threshold.probabilities of 11%and.32%of d.veloping a severe *** Patients with American Society of Anesthesiologists scale 4,higher level of bilirubin and.need.of choled.cholithotomy are at the highest risk of a severely complicated.postoperative *** end.scopic or percutaneous treatments should.be consid.red.in this subgroup of octogenarians.

关键词： Cholecystitis Gallstones Choled.cholithotomy Eld.rly Post-operative complications

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