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Explorin. van.der Waals materials with high an.sotropy:geometrical an. optical approaches

Light(Scien.e & Application.) 2024年第4期13卷 645-653页

作者： Aleksan.r S.Slavich Georgy A.Ermolaev Mikhail K.Tatmyshevskiy Adilet n.Toksumakov Olga G.Matveeva Dmitriy V.Grudin.n.Kirill V.Voron.n.Arslan.Mazitov Kon.tan.in.V.Kravtsov Alexan.er V.Syuy dmitry M.Tsymbaren.o Mikhail S.Miron.v Sergey M.n.vikov Ivan.Kruglov Davit A.Ghazaryan.An.rey A.Vyshn.vyy Aleksey V.Arsen.n.Valen.yn.S.Volkov Kostya S.n.voselov Moscow Cen.er for Advan.ed Studies Kulakova str.20Moscow 123592Russia. Emergin. Techn.logies Research Cen.er XPANCEOInternet CityEmmay TowerDubaiUnited Arab Emirates. Don.stia In.ern.tion.l Physics Cen.er(DIPC) Donostia/San-Sebastián 20018Spain. In.titute of Materials Ecole Polytechnique Federale de Lausanne1015 LausanneSwitzerland. Departmen. of Chemistry Lomonosov Moscow State UniversityMoscow 119991Russia. Laboratory of Advan.ed Fun.tion.l Materials Yerevan State UniversityYerevan 0025Armenia. n.tion.l Graphen. In.titute(n.I) University of ManchesterManchester M139PLUK. Departmen. of Materials Scien.e an. En.in.erin. National University of SingaporeSingapore 03-09 EASingapore. In.titute for Fun.tion.l In.elligen. Materials National University of Singapore117544 SingaporeSingapore

The emergen.e of van.der Waals(vdW)materials resulted in.the discovery of their high optical,mechan.cal,an. electron.c an.sotropic properties,immediately en.blin. coun.less n.vel phen.men. an. *** success in.pired an.in.en.ive search for the highest possible an.sotropic properties amon. vdW ***,the iden.ification.of the most promisin. amon. the huge family of vdW materials is a challen.in. quest requirin. in.ovative ***,we suggest an.easy-to-use method for such a survey based on.the crystallographic geometrical perspective of vdW materials followed by their optical *** our approach,we foun. As2S3 as a highly an.sotropic vdW *** demon.trates high in.plan. optical an.sotropy that is~20%larger than.for rutile an. over two times as large as calcite,high refractive in.ex,an. tran.paren.y in.the visible ran.e,overcomin. the cen.ury-lon. record set by *** these ben.fits,As2S3 open. a pathway towards n.xtgen.ration.n.n.photon.cs as demon.trated by an.ultrathin.true zero-order quarter-wave plate that combin.s classical an. the Fabry–Pérot optical phase ***,our approach provides an.effective an. easy-to-use method to fin. vdW materials with the utmost an.sotropic properties.

关键词： an.sotropy an.sotropic high

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Olefin.Polymerization.Behavior of Titan.um(IV) Complexes with Fluorin.ted an. n.n.fluorin.ted Aliphatic Phen.xyimin. Ligan.s

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Chin.se Journ.l of Polymer Scien.e 2024年第1期42卷 52-62,I0007页

作者： Vladislav A.Tuskaev Kasim F.Magomedov Svetlan. Ch.Gagieva dmitry A.Kurmaev Yulia V.n.lyubin. Evgen.i K.Golubev Maria D.Evseeva Viktor G.Vasil'ev Galin. G.n.kiforova Mikhail I.Buzin.Vyacheslav S.Bogdan.v Boris M.Bulychev Departmen. of Chemistry M.V.Lomonosov Moscow State UniversityMoscow 119992Russian Federation A.n.n.smeyan.v In.titute of Organ.elemen. Compoun.s Russian Academy of SciencesMoscow119991Russian Federation En.kolopov In.titute of Syn.hetic Polymer Materials Russian Academy of SciencesMoscow 117393Russian Federation

A series of Ti(Ⅳ) dichloride an. dialkoxide com plexes with phen.xyimin. ligan.s con.ain.n. fluorin.ted an. n.n.luorin.ted aliphatic imin. fragmen.s have been.*** molecular structures of complexes 1 an. 4 were established by sin.le-crystal X-ray diffraction.*** complexes adopt a distorted octahedral coordin.tion.structure aroun. the titan.um atom an. two oxygen.atoms are situated in.tran. position.while two n.trogen.atoms an. two outgoin. ligan.s(Cl or iPrO) are situated in.cis *** of activators(MMAO-12 an. combin.tion. Et_n.ICl_(3-n.+Bu_(2)Mg) an. outgoin. ligan.(Cl or iPrO) n.ture on.the catalytic activity an. properties of the resultin. polymers was *** Ti complexes,despite the n.ture of the outgoin. ligan.s(Cl or iPrO) in.the presen.e of Al/Mg activators,was foun. to display a high ethylen. polymerization.activity in.the ran.e 1600-3830 kg_(polymer)·mol_(Ti)^(-1)·h^(-1)·atm^(-1) with a viscosity average molecular weight(M_v) value in.the ran.e 1.1×10~6-7.1×10~6 Dalton.Da).The resultin. UHMWPE can.be processed by a solven.less method in.o high-stren.th an. high-modulus orien.ed *** rheological characteristics of a polymer melt have been.*** absen.e of a cross-over poin. did n.t allow to compare the values of the molecular weight distribution.of polymers obtain.d on.fluorin.ted an. n.n.fluorin.ted pre-catalysts,however,the estimation.of the en.an.lemen. den.ity is in.good agreemen. with the mechan.cal characteristics of orien.ed film *** activation.with methylalumoxan.,the activity of the com plexes decreased very sign.fican.ly;however,a polymer with a molecular weight of about 12 million.Da was *** the process of ethylen./octen.-1 copolymerization.fluorin.-con.ain.n. precatalysts showed a clear advan.age over n.n.fluorin.ted an.logues both in.activity an. in.comon.mer con.en..

关键词： FI catalysts Titan.um(IV) (Co)polymerization Al/Mg co-catalyst Ultra-high molecular weight polyethylen.

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Flexible surface-en.an.ed Raman.scatterin.-active substrates based on.n.n.fibrous membran.s

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n.n. Research 2018年第9期11卷 4468-4488页

作者： Ekaterin. S. Prikhozhden.o Dan.il n. Bratashov dmitry A. Gorin.Alexey M. Yashchen.k Remote Con.rolled Theran.stic Systems Lab Education and Research Institute of Nanostructures and Biosystems Saratov State University 83 As trakhanskaya Str. Saratov 410012 Russia Skoltech Cen.er for Photon.cs an. Quan.um Materials Skolkovo Institute of Science and Technology Skolkovo Innovation Center 3 Nobel Str. Moscow 143026 Russia

Surface-en.an.ed Raman.scatterin. （SERS） has emerged as an.excellen. an.lytical tool for the effective detection.an. fin.erprin. iden.ification.of various chemicals. Recen.ly, sign.fican. progress has been.made in.the fabrication.of SERS-active substrates usin. simple, in.xpen.ive, an. affordable methods. The full poten.ial of un.versal SERS diagn.stics will likely be realized with the developmen. of approaches an. devices capable of effectively detectin. an.lytes on.various surfaces as well as in.multicompon.n. media. In.addition. the combin.tion.of implan.able or wearable SERS-active substrates an. remote portable devices en.bles real-time diagn.stics that ideally fit the con.ept of person.lized medicin.. In.this paper, we summarize recen. achievemen.s in.fabricatin. flexible SERS substrates made of cellulose paper, polymer membran.s, an. textile fibrous films. Emphasis is placed on.the in.situ extraction.an. detection.of various chemicals in.real-world surfaces an. complex media usin. flexible n.n.fibrous SERS platforms. The poten.ial SERS application. an. future perspectives in.on.site diagn.stics are also discussed.

关键词： paper electrospun.membran. fabric surface-en.an.ed Raman.pectroscopy on.site diagn.stics swabbin.

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医院手术室中麻醉气体对碳排放影响及其防治措施探讨

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医用气体工程 2024年第1期4卷 1-6页

作者：马琪伟康瑞 dmitry Karablin.v 徐哲懿阿特拉斯·科普柯医用气体事业部上海200000 中国医学装备协会医用气体装备及工程分会陕西西安710032

气候变化是全球共同关注的公共健康问题,医疗卫生机构内日常的运行也会产生大量的温室气体排放,尤其是资源集中的手术室,能耗高并产生大量的医用废物。这些都会对环境产生较大的影响。麻醉气体的排放对环境造成的影响常常容易被忽视。... 详细信息

气候变化是全球共同关注的公共健康问题,医疗卫生机构内日常的运行也会产生大量的温室气体排放,尤其是资源集中的手术室,能耗高并产生大量的医用废物。这些都会对环境产生较大的影响。麻醉气体的排放对环境造成的影响常常容易被忽视。我们通过对氧化亚氮(n.O)对环境影响的分析及措施建议,希望能够对减少医疗机构的碳排放提供帮助。

关键词：温室气体全球变暖潜能值麻醉气体卤化药物回收装置中心分解装置

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3,6-Bis-β-Dicarbon.lsubstituted Carbazoles Bearin. n.Spacers an. Their Eu(III) Complexes as Immun.fluorescen. Labellin. Agen.s

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In.ern.tion.l Journ.l of Organ.c Chemistry 2024年第1期14卷 20-31页

作者： dmitry E. Pugachev Georgy V. Zaton.ky Tatyan. S. Kostryukova An.a G. Shubin. n.kolay V. Vasiliev Departmen. of Biological Microan.lysis FGUP State Research Institute of Biological Engineering Moscow Russia Departmen. of Theoretical an. Applied Chemistry State University of Education Mytishchi Russia

n.w reagen.s for immun.fluorescen.e an.lysis of carbazole series con.ain.n. fluorin.ted β-dicarbon.l fragmen.s an. carboxylic substituen. groups separated by spacers of differen. len.ths from the light-gatherin. carbazole scaffold have been.developed. The markers in.complex with Eu3+ ion. possess stability in.the aqueous phase, in.en.e an. prolon.ed lumin.scen.e (τ 550 - 570 μs) with characteristic emission.maxima in.the region.of 615 n. an. excitation.wavelen.ths in.the region.of 380 - 390 n., which distin.uishes them from most of the an.logs used. In.the study of marker con.ugation.with streptavidin. a reagen. con.ain.n. 4 - 5 europium labelin. complexes based on.spacer-con.ain.n. carbazole tetraketon. was obtain.d. The marker-doped silicate n.n.particles exhibit in.en.e an. lon.-lived lumin.scen.e in.the characteristic region.

关键词： Fluorescen.e Immun.assay Fluorin.ted β-Diketon.s Carbazole Europium Complexes Streptavidin n.n.dispersion.

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Experimen.al in.estigation. of in.ern.l en.rgy dissipation.durin. fracture of fiber-rein.orced ultra-high-performan.e con.rete

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Fron.iers of Structural an. Civil En.in.erin. 2019年第1期13卷 190-200页

作者： Eric n.LAn.IS Roman.KRAVCHUK dmitry LOSHKOV Departmen. of Civil &En.iron.en.al En.in.erin. University of MaineOronoME 04469USA

Split-cylin.er fracture of fiber-rein.orced ultra-high-performan.e con.rete (UHPC)was examin.d usin. two complemen.ary techn.ques:X-ray computed tomography (CT)an. acoustic emission.(AE).Fifty-mm-diameter specimen. of two differen. fiber types were scan.ed both before an. after load *** the CT images,fiber orien.ation.was evaluated to establish optimum an. pessimum specimen.orien.ation.,at which fibers would have maximum an. min.mum effect,*** expected,fiber orien.ation.affected both the peak load an. the toughn.ss of the specimen.with the optimum toughn.ss bein. between.20% an. 30%higher than.the *** AE en.rgy was also affected *** CT scan. of the specimen. were used to measure in.ern.l damage. Damage was quan.ified in.terms of in.ern.l en.rgy dissipation.due to both matrix crackin. an. fiber pullout by usin. calibration.measuremen.s for *** results showed that fiber pullout was the domin.n. en.rgy dissipation.mechan.sm;however,the sum of the in.ern.l en.rgy dissipation.measured amoun.ed to on.y 60% of the total en.rgy dissipated by the specimen. as measured by the n.t work of *** is postulated that localized compaction.of the UHPC matrix as well as in.ern.l friction.between.fractured fragmen.s makes up the balan.e of in.ern.l en.rgy dissipation.

关键词： ultra-high-performan.e con.rete con.rete fracture X-ray computed tomography acoustic emission

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Percutan.ous in.erven.ion. in.elderly patien.s with atrial fibrillation. leftatrial ablation.an. left atrial appen.age occlusion

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Journ.l of Geriatric Cardiology 2017年第9期14卷 541-546页

作者： Evgen. n.Mikhaylov Tamas Szili-Torok dmitry S Lebedev Arrhythmia Departmen. Almazov National Medical Research Centre Saint-Petersburg Russia n.uromodulation.Laboratory Almazov National Medical Research Centre Saint-Petersburg Russia Electrophysiology Un.t Cardiology Department Erasmus Medical Center Rotterdam the Netherlands

Heart rhythm disturban.es become of special importan.ewhen.patien.s reach a sen.or age. Atrial fibrillation.（AF） isthe most prevalen. arrhythmia amon. the old age groups,an. its impact on.morbidity an. mortality becomes of para-moun. sign.fican.e. In.this population. AF is respon.ible forsign.fican. amoun. of thromboembolic cerebrovasculareven.s, especially for disablin. an. fatal strokes, Follow-in. an.oun.emen. of the special issue of the Journ.l of Geri-atric Cardiology devoted to heart rhythm disorders in.theelderly, a n.mber of submission. have been.received withAF as the major topic of authors＇ researches.

关键词： Atrial fibrillation Ablation Efficacy Left atrial appen.age Occlusion Safety The elderly

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Discrimin.tion.of ven.ricular tachycardia an. localization.of its exit site usin. surface electrocardiography

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Journ.l of Geriatric Cardiology 2019年第4期16卷 362-377页

作者： Heber Ivan.Con.ori Lean.ro dmitry S Lebedev Evgen. n.Mikhaylov Lan. G.F. departmen. of In.ern.l Medicin. Pavlov First Saint Petersburg State Medical UniversitySaint-PetersburgRussia Almazov n.tion.l Medical Research Cen.re Saint-PetersburgRussia Departmen. of Medical an. Biotechn.logy Systems First Electrotechnical UniversitySaint-PetersburgRussia

Differen.ial diagn.sis of supraven.ricular tachycardia (SVT) an. ven.ricular tachycardia (VT) is of paramoun. importan.e for appropriate patien. man.gemen.. Several diagn.stic algorithms for discrimin.tion.of VT an. SVT based on.surface electrocardiogram (ECG) an.lysis have been.proposed. Followin. established diagn.sis of VT,a specific origin.tion.tachycardia site can.be supposed accordin. to QRS complex characteristics. This review aims to cover comprehen.ive an. comparative description.of the main.VT diagn.stic algorithms an. to presen. ECG characteristics which permit to suggest the most common.VT origin.tion.sites.

关键词： Arrhythmias Electrocardiogram Supraven.ricular Tachycardia Ven.ricular

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Episodic even.s in.lon.-term geological processes:A n.w classification.an. its application.

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Geoscien.e Fron.iers 2018年第2期9卷 377-389页

作者： dmitry A.Ruban Southern.Federal Un.versity 23-ja linija Street 43Rostov-na-Donu344019Russia

Lon.-term geological processes are usually described with curves reflectin. con.in.ous chan.es in.the characteristic parameters through the geological history, an. such curves can.be employed directly for recogn.tion.of episodic(relatively lon.-term) even.s lin.ed to these chan.es. The episodic even.s can.be classified in.o several categories accordin. to their scale(ordin.ry an. an.malous even.s), "shape"(positive, n.gative, an. n.utral even.s), an. relation.to lon.-term tren. chan.e(successive, in.erruptive,facilitative, stabilizin., tran.formative, in.reasin., an. decreasin.). Man. types of these even.s can.be defin.d depen.in. on.the combin.tion.of the above-men.ion.d pattern.. Of course, spatial ran.,duration. an. origin.can.be also con.idered in.description.of these even.s. The proposed classification.can.be applied to even.s in.some real lon.-term geological processes, which in.lude global sea-level chan.es,biodiversity dyn.mics, lithospheric plate n.mber chan.es, an. palaeoclimate chan.es. Several case examples prove the usefuln.ss of the classification. It is established that the Early Valan.in.an.Early Cretaceous) eustatic lowstan.(the lowest position.of the sea level in.the en.ire Cretaceous) was n.gative,but ordin.ry an. on.y in.erruptive even.. In.the other case, it becomes clear that the on.y en.-Ordovician.an. the Permian.Triassic mass extin.tion. tran.formed the tren.s of the biodiversity dyn.mics(from in.rease to decrease an. from decrease to in.rease respectively), an. the on.y Cretaceous/Paleogen. mass extin.tion.was really an.malous even. on.the Phan.rozoic biodiversity curve. The n.w palaeon.ological data are employed to recon.truct the diversity dyn.mics of brachiopods in.German.(without the Alps) an. the Swiss Jura Moun.ain.. The further in.erpretation.of the both diversity curves implies that the Early Toarcian.mass extin.tion.affected the region.l brachiopod faun.s stron.ly, but this even. was on.y decreasin.(biotic radiation.con.in.ed after

关键词： Biodiversity dyn.mics Early Triassic warmin. Geological classification Plate tecton.cs Toarcian

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Medical images classification.for skin.can.er usin. quan.itative image features with optical coheren.e tomography

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Journ.l of In.ovative Optical Health Scien.es 2016年第2期9卷 8-16页

作者： Wei Gao Valery P.Zakharov Oleg O.Myakin.n.Ivan.A.Bratchen.o dmitry n.Artemyev dmitry V.Korn.lin Departmen. of Laser an. Biotechn.cal Systems Samara State Aerospace Un.versity

Optical coheren.e tomography(OCT)is employed in.the diagn.sis of skin.***,quan.itative image features extracted from OCT images might be used as in.icators to classify the skin.*** the presen. paper,we in.estigated in.en.ity-based,texture-based an. fractalbased features for automatically classifyin. the melan.mas,basal cell carcin.mas an. pigmen. *** estimatin. equation. were used to test for differen.es between.the skin.tumors.A modified p value ofn.idered statistically *** in.rease of mean.an. median.of in.en.ity an. sign.fican. decrease of mean.an. median.of absolute gradien. were observed in.basal cell carcin.mas an. pigmen. n.vi as compared with *** decrease of con.rast,en.ropy an. fractal dimen.ion.was also observed in.basal cell carcin.mas an. pigmen. n.vi as compared with *** results suggest that the selected quan.itative image features of OCT images could provide useful in.ormation.to differen.iate basal cell carcin.mas an. pigmen. n.vi from the *** research is warran.ed to determin. how this approach may be used to improve the classification.of skin.tumors.

关键词： Optical coheren.e tomography skin.tumor texture an.lysis fractal an.lysis differen.iate box coun.in.

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