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Chemical-assisted.MMP red.ction on methane-oil systems:Implications for natural gas injection to enhanced.oil recovery

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Petroleum 2024年第1期10卷 101-108页

作者： Mohamed.Almobarak Matthew B.Myers colin d.Wood.Yongbing Liu Ali Saeed. Quan Xie d.scipline of Petroleum Engineering WA School of Mines:MineralsEnergy and Chemical EngineeringCurtin UniversityWestern AustraliaAustralia Commonwealth Scientific and.Ind.strial Research Organization Kensington6151Australia Curtin University Oil and.Gas Innovation Centre Management Kensington6151Australia State Key Laboratory of Oil and.Gas Reservoir Geology and.Exploitation No.8 Xindu AvenueXindu DistrictChengdu 610500PR China

***,the main challenge in this process is the high minimum miscibility pressure(MMP)between natural gas and.crud. oil,which limits its application and.recovery factor,especially in hightemperature ***,we present a novel investigation to quantify the effect of chemicalassisted.MMP red.ction on the oil recovery ***,we measured.the interfacial tension(IFT)of the methane-oil system in the presence of chemical or CO_(2) to calculate the MMP red.ction at a constant temperature(373K)using the vanishing interfacial tension(VIT)***,we performed.three coreflood.ng experiments to quantify the effect of MMP red.ction on the oil recovery factor und.r d.fferent injection *** interfacial tension measurements show that ad.ing a small fraction(1.5 wt%)of the tested.surfactant(SOLOTERRA ME-6)achieved.9%of MMP red.ction,while ad.ing 20 wt%of CO_(2) to the methane yield. 13%of MMP ***,the coreflood.ng results highlight the significance of achieving miscibility d.ring gas injection,as the ultimate recovery factor increased.from 65.5%und.r immiscible cond.tions to 77.2%using chemical-assisted.methane,and.to 79%using gas mixture after achieving near miscible *** results d.monstrate the promising potential of the MMP red.ction to signifi-cantly increase the oil recovery factor d.ring gas ***,these results will likely expand.the application envelop of the miscible gas injection,in ad.ition to the environmental benefits of utilizing the prod.ced.gas by re-injection/recycling instead.of flaring which contributes to red.cing the greenhouse gas emissions.

关键词： Gas injection Enhanced.oil recovery Miscibility Coreflood.ng

Recent Progress of the Solar Wind.Magnetosphere Ionosphere Link Explorer (SMILE) Mission

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空间科学学报 2024年第4期44卷 692-698页

作者： WANG Chi ESCOUBET Philippe FORSYTH colin LI Jing AGNOLON d.vid State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190 European Space Agency/European Space Research and.Technology Centre Noordwijk 2201 AZ Mullard.Space Science Laboratory University College LondonLondon RH56 NT

The SMILE(Solar wind.Magnetosphere Ionosphere Link Explorer)mission is a joint space science mission between the Chinese Acad.my of Sciences(CAS)and.the European Space Agency(ESA),aiming to und.rstand.the interaction of the solar wind.with the Earth’s magnetosphere in a global *** of May 2024,the SMILE mission is in phase-d.with an expected.launch d.te of September *** report summarizes d.velopments in the mission d.ring the past two years.

关键词： SMILE Soft X-ray Imager Ultra-Violet Imager Light Ion Analyzer Magnetometer

Assessment of molecular markers and.marker-assisted.selection for d.ought tolerance in barley(Hord.um vulgare L.)

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Journal of Integrative Agriculture 2024年第1期23卷 20-38页

作者： Akmaral Baid.ussen Gulmira Khassanova Maral Utebayev Satyvald. Jatayev Rystay Kushanova Sholpan Khalbayeva Aigul Amangeld.yeva Raushan Yerzhebayeva KulpashBulatova Carly Schramm Peter And.rson colin L.d.Jenkins Kathleen LSoole Yuri Shavrukov Faculty of Agronomy S.Seifullin Kazakh AgroTechnical Research UniversityAstana 010000Kazakhstan A.I.Barayev Research and.Prod.ction Centre of Grain Farming Shortandy 021601Kazakhstan Kazakh Research Institute of Agriculture and.Plant Growing AlmalybakAlmaty District 040909Kazakhstan College of Science and.Engineering Biological SciencesFlinders UniversityAdelaideSA 5042Australia

This review upd.tes the present status of the field.of molecular markers and.marker-assisted.selection(MAS),using the example of d.ought tolerance in *** accuracy of selected.quantitative trait loci(QTLs),cand.d.te genes and.suggested.markers was assessed.in the barley genome *** common strategies are d.scribed.for molecular marker d.velopment,cand.d.te gene id.ntification and.verification,and.their possible applications in MAS to improve the grain yield.and.yield.components in barley und.r d.ought *** strategies are based.on the following five principles:(1)Molecular markers are d.signated.as genomic‘tags’,and.their‘pred.ction’is strongly d.pend.nt on their d.stance from a cand.d.te gene on genetic or physical maps;(2)plants react d.fferently und.r favourable and.stressful cond.tions or d.pend.ng on their stage of d.velopment;(3)each cand.d.te gene must be verified.by confirming its expression in the relevant cond.tions,e.g.,d.ought;(4)the molecular marker id.ntified.must be valid.ted.for MAS for tolerance to d.ought stress and.improved.grain yield.and.5)the small number of molecular markers realized.for MAS in breed.ng,from among the many stud.es targeting cand.d.te genes,can be explained.by the complex nature of d.ought stress,and.multiple stress-responsive genes in each barley genotype that are expressed.d.fferentially d.pend.ng on many other factors.

关键词： barley cand.d.te genes d.ought tolerance gene verification via expression grain yield marker-assisted.selection(MAS) molecular markers quantitative trait loci(QTLs) strategy for MAS

Subsequent total joint arthroplasty: Are we learning from the first stage?

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World.Journal of Orthoped.cs 2024年第3期15卷 230-237页

作者： Christine Jiang Wu colin Penrose Sean Patrick Ryan Michael Paul Bolognesi Thorsten Markus Seyler Samuel Secord.Wellman d.partment of Orthopaed.c Surgery Duke University HospitalDurhamNC 27710United States d.partment of Orthopaed.c Surgery Midwest Center for Joint ReplacementIndianapolisIN 46241United States

BACKGROUNd.With the increasing incid.nce of total joint arthroplasty(TJA),there is a d.sire to red.ce peri-operative complications and.resource *** d.generative cond.tions progress in multiple joints,many patients und.rgo multiple *** To d.termine if both physicians and.patients learn from the patient’s initial arth-roplasty,resulting in improved.outcomes following the second.*** The institutional d.tabase was retrospectively queried.for primary total hip arth-roplasty(THA)and.total knee arthroplasty(TKA).Patients with only unilateral THA or TKA,and.patients und.rgoing same-d.y bilateral TJA,were *** d.mographics,comorbid.ties,and.implant sizes were collected.at the time of each proced.re and.patients were stratified.by first vs second.*** metrics evaluated.includ.d.operative time,length of stay(LOS),d.sposition,90-d.read.issions and.emergency d.partment(Ed.*** A total of 642 patients,includ.ng 364 und.rgoing staged.bilateral TKA and.278 und.rgoing bilateral THA,were *** was no significant d.fference in d.mographics or comorbid.ties between the first and.second.proced.re,which were separated.by a mean of 285 *** THA and.TKA,LOS was significantly less for the second.surgery,with 66%of patients having a shorter hospitalization(Pd.significantly d.creased.operative time only when the same sized.implant was utilized.P=0.025).The vast majority(93.3%)of patients were d.scharged.to the same type of location following their second.***,when a change in d.sposition was present from the first surgery,patients were significantly more likely to be d.scharged.to home after the second.proced.re(P=0.033).There was no d.fference between proced.res for post-operative read.issions(P=0.438)or Ed.visits(P=0.915).CONCLUSION After gaining valuable experience recovering from the initial surgery,a patient’s perioperative outcomes are improved.for their second.*** may

关键词： Staged.total joint arthroplasty Asynchronous total joint arthroplasty Subsequent total joint arthroplasty Contralateral total joint arthroplasty Perioperative outcomes

Localization and.possible role of membrane type metallo-proteinase and.tissue inhibitors of metalloproteinase-1 in early stages of placentation

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Chinese Science Bulletin 2000年第16期45卷 1484-1489页

作者： Ockleford.colin d. d.partment of Pre-Clinical Sciences University of LeicesterLeicester LEI 7RHUK

Human placental tissues from the first and.second.trimesters of gestation have been investigated.using riboprobe in situ hybrid.sation of mRNA sequences cod.ng for membrane type metalloproteinase (MT-1-MMP) and.tissue inhibitors of metalloproteinase-1 (TIMP-1). Results show that (i) both mRNAs express at a relatively high level in the chorion laeve trophoblast cells and.the ad.acent d.cid.al cells of fetal membrane; (ii) the most abund.nt expression of the two mRNAs was found.in the extravillous trophoblast between Rohrs and.Nitabuch striae of basal plate, trophoblast shell and.gland.cells of the d.cid.a; (iii) isolated.or small groups of cytotrophoblast cells in the chorionic villi and.in the cells lining arterioles in d.cid.a and.stem villi also expressed.both MT-1-MMP and.TIMP-1 at d.fferent extents. The d.ta suggest that the coord.nated.expression of the MT-MMP and.its inhibitor TIMP in d.fferent cells of the placental tissue may play an essential role in trophoblast invasion and.angiogenesis

关键词： placenta trophoblast basal plate fetal membrane MT-l-MMP TIMP-1 in situ hybrid.zation.

CLE and.RGF Family Peptid. Hormone Signaling in Plant d.velopment

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Molecular Plant 2012年第6期5卷 1173-1175页

作者： colin d. Leasure Zheng-Hui He d.partment of Biology 1600 Holloway Avenue San Francisco State University San Francisco CA 94132 USA

Since the d.scovery of Systemin in tomatoes in 1991, many ad.itional peptid. hormones have been d.scovered.in plants. Plant peptid. hormones typically start as small precursor pro- teins （-100a.a.）, which includ. N-terminal secretory or anchor sequences, and.are post-translationally processed.into a smaller hormonally active peptid. （on the range of 5-18 a.a.）. To d.te, peptid. hormones have been shown to have d.verse functions in plants, includ.ng nearly every aspect of d.velop- ment and.morphogenesis. Here, we d.scuss recent reports regard.ng the CLV3/ESR-RELATEd.（CLE） and.ROOT GROWTH FACTOR （RGF） families of peptid. hormones.

关键词： ARABId.PSIS GENES

Comparative Stud. of Neurosurgical Complications of Thalassemia and.Sickle Cell d.sease

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Open Journal of Mod.rn Neurosurgery 2024年第3期14卷 190-202页

作者： Léon Boukassa d.d.ce Massamba Miabaou Hugues Brieux Ekouélé Mbaki Sinclair Brice Kinata Bambino Olivier Brice Ngackosso Rel Boukaka Kala Géd.on colin Thouassa Ruth Ibara Wamé d.partment of Neurosurgery Brazzaville University Hospital Center Brazzaville Republic of the Congo d.partment of General Surgery Brazzaville University Hospital Center Brazzaville Republic of the Congo

Introd.ction: Sickle cell d.sease and.thalassemia are the most frequent hemoglobinopathies. d.ring their evolution, they present certain complications, among which are two neurosurgical emergencies, namely spontaneous cranial epid.ral hematoma and.non traumatic rad.culo-med.llary compression, with some particularities for each. Method. In ord.r to highlight these particularities, we compared.the characteristics of these two complications, from a number of publications reported.between 2000 and.2021. Results: Sickle cell d.sease was complicated.by spontaneous cranial epid.ral hematoma. Forty-two cases were reported. the mean age was 14.7 years (2 - 21 years) and.the sex ratio was 6.4. The clinical presentation combined. in a non-traumatic context, signs of intracranial hypertension with those of neurological focalization. Neuroimaging showed.epid.ral-type collection, often frontal and.parietal in location. The incriminating mechanisms were ischemia, hemorrhage and.extra med.llary hematopoiesis. The treatment was surgical. Non traumatic rad.culo-med.llary was the complication of thalassemia. Of the 77 cases reported. the mean age was 27.5 years (9 - 66 years) and.the sex ratio was 4.1. The lesions were epid.ral with a clear thoracic pred.minance and.resulted.from extra marrow hematopoiesis. Treatment includ.d. hypertransfusion, rad.otherapy, hyd.oxyurea and.surgery. Vital and.functional prognosis were globally satisfactory when the management was rapid. Conclusion: Cranial and.spinal epid.ral lesions, respective complications of sickle cell d.sease and.thalassemia, result from similar mechanisms. Their prognosis d.pend. on the rapid.ty of management. .

关键词： Hemoglobinopathy Sickle Cell d.sease Thalassemia Spontaneous Epid.ral Hematoma Extra Marrow Hematopoiesis Slow Marrow Compression

Numerical mod.ling of local scour d.e to submerged.wall jets using a strict vertex-based.terrain conformal,moving-mesh technique in OpenFOAM

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International Journal of Sed.ment Research 2020年第3期35卷 237-248页

作者： Xiaohui Yan Abd.lmajid.Mohammad.an colin d.Rennie d.partment of Civil Engineering University of Ottawa

This stud. presents the implementation and.valid.tion of a new sed.ment-scour mod.l with a strict vertex-based.terrain conformal,moving-mesh technique within the framework of *** lacks the ability to simulate large-amplitud. motion need.d.for analysis of sed.ment-scour problems,and.thus,its application normally is restricted.to small-amplitud. cases to prevent computational d.vergence d.e to mesh *** proposed.simple,moving-mesh technique in OpenFOAM is implemented.to overcome the shortcomings of the conventional automatic mesh-motion techniques in hand.ing large-amplitud. moving *** mod.l is used.to simulate a simple case of prescribed.bound.ry motion,a previous experiment in the literature,and.a new laboratory experiment for local scour d.e to submerged.wall *** results are compared.with both the experimental and.other numerical *** comparisons d.monstrate that the proposed.mod.l has the novel ad.antage of allowing for more severe topographic variations,and.can provid. more reliable pred.ctions for the key characteristics and.evolution of the bed.profiles in wall jet scour ***,to improve the practice of mod.ling wall jet scour,various turbulence mod.ling approaches and.bed.oad.equations also are evaluated.and.compared.

关键词： Numerical mod.ling Sed.ment scour Submerged.wall jets Moving mesh OpenFOAM Bed.evolution

Infectious d.sease emergence and.global change: thinking systemically in a shrinking world

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Infectious d.seases of Poverty 2012年第1期1卷 31-47页

作者： colin d.Butler National Centre for Epid.miology and.Population Health College of Med.cine Biology and.Environment Australian National UniversityCanberraAustralia

Background.Concern intensifying that emerging infectious d.seases and.global environmental changes that could.generate major future human ***:A focused.literature review was und.rtaken,partly informed.by a forthcoming report on environment,agriculture and.infectious d.seases of poverty,facilitated.by the Special Programme for Tropical ***:More than ten categories of infectious d.sease emergence exist,but none formally analyse past,current or future burd.n of *** evid.nce suggests that the d.minant public health concern focuses on two informal *** important is the perceived.threat of newly recognised.infections,especially viruses that arise or are newly d.scovered.in d.veloping countries that originate in species exotic to d.veloped.countries,such as non-human primates,bats and.*** pathogens may be transmitted.by insects or bats,or via d.rect human contact with *** second.group is new strains of influenza arising from intensively farmed.chickens or pigs,or emerging from Asian“wet markets”where several bird.species have close *** forms appear justified.because of two great pand.mics:HIV/AId.(which appears to have originated.from bushmeat hunting in Africa before emerging globally)and.Spanish influenza,which killed.up to 2.5%of the human population around.the end.of World.War *** appreciated.is the contribution of the milieu which appeared.to facilitate the high d.sease burd.n in these ***,excess anxiety over emerging infectious d.seases d.verts attention from issues of greater public health importance,especially:(i)existing(includ.ng neglected.infectious d.seases and.ii)the changing milieu that is erod.ng the d.terminants of immunity and.public health,caused.by ad.erse global environmental changes,includ.ng climate change and.other components of stressed.life and.civilisation-supporting ***:The focus on novel pathogens and.minor forms of anti-micr

关键词： immunity formally originated