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Ecology and social behavior of the social vole Microtus socialis: A generalized review

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Current Zoology 2023年第6期69卷 775-783页

作者： Vladimir S.gromov A.N.Severtsov Institute of Ecology and Evolution Leninsky prosp.33Moscow 119071Russia

The present review is a compilation of the published data on the ecology and social behavior of the social *** studies provide evidence that these voles live in family groups consisting of 1 adult male,1 or 2 breeding females,and their offspring(1 or 2 litters).The social vole is capable of year-round reproduction,but in arid regions,the voles demonstrate seasonality in *** mating system of this species may be defined as behavioral monogamy.A typical feature of the space use system is territoriality characterized by a locus-dependent dominance in relationships between neighboring breeding pairs as well as family *** family group social organization may be defined as consistent relationships without a dominant *** voles are cooperative in defending their territories,constructing burrows,digging underground tunnels,maintaining nests,and raising *** appears to enhance the survival of family groups of this species under the extreme climaticconditionsof Central Asia.

关键词： ecology family-group lifestyle mating system reproduction social organization social vole

Non-isothermal oxidation of coal with Ce(NO3)3 and Cu(NO3)2 additives

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International Journal of Coal Science & Technology 2019年第1期6卷 37-50页

作者： Kirill Borisovich Larionov Alexander Alexandrovich gromov National Research Tomsk Polytechnic University Tomsk Russia 634050 National University of Science and Technology “MISiS” MoscowRussia 119049

Non-isothermal oxidation of brown coal with 5 wt% of Cu(NO3)2, 5 wt% of Ce(NO3)3 and {2.5 wt% Cu(NO3)2 + 2.5 wt% Ce(NO3)3} additives was studied. The introduction of additives was carried out by an incipient wet impregnation method to ensure uniform distribution of cerium and copper nitrates within the structure of coal powdery samples (according to SEM and EDX mapping). The samples reactivity was studied in an isothermal oxidation regime at 200 °C (1 h) and by DSC/TGA at 2.5 °C/min heating rate. The additives implementation was found to reduce significantly the oxidation onset temperature (△Ti = 20-55 °C), the samples oxidation delay time (△ti= 2-22 min) and overall duration of the oxidation process (△tc = 8-16 min). The additives efficiency could be graded in accordance with the activation on the coal oxidation in the following row: Cu(NO3)2 >{Cu(NO3)2 + Ce(NO3)3}> Ce(NO3)3. According to the mass spectroscopy, the obtained row of activation correlates well with the initial temperature of the studied nitrate's decomposition (from 190 to 223 °C). A presence of nitrates was found to change significantly the trend of heat release taking place during the oxidation of coal samples (according to DSC/TGA data). The influence of coal morphology and volatiles concern in initial sample on the parameters of the oxidation process was studied as well. Activation energy (Ea) of the coal oxidation was calculated using Coats-Redfern method. Maximum decrease in Ea from 69 to 58 kJ/mol was observed for the samples with Cu(NO3)2. Graphical abstract.

关键词： Coal oxidation Reactivity DSC/DTG/TGA/MS Copper nitrate - Cerium nitrate

Variations in defect substructure and fracture surface of commercially pure aluminum under creep in weak magnetic field

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Chinese Physics B 2017年第12期26卷 427-431页

作者： Sergey Konovalov Dmitry Zagulyaev 陈希章 Victor gromov Yurii Ivanov Samara National Research University Samara 443086 Russia Wenzhou University Wenzhou 325035 China Siberian State Industrial University Novokuznetsk 654007 Russia Institute of High Current Electronics of the Siberian Branch of the Russia Academy of Sciences Tomsk 634055 Russia

Commercially pure polycrystalline aluminum of grade A85, as a test material, is investigated. Using scanning and transmission electron microscopy the aluminum fine structure and fracture surface are analyzed. Fractures are studied in the regime of creep with and without a simultaneous effect of 0.3-T magnetic field. It is found that the application of a magnetic field in a linear stage of creep leads to substructure imperfection increasing. Furthermore, the magnetic field effect on aluminum in the process of creep causes the average scalar density of dislocations to increase and induces the process of dislocation loop formation to strengthen. Fractographic investigation of the fracture surface shows that in the fibrous fracture zone the average size of plastic fracture pits decreases more than twice under creep in the condition of external magnetic field compared with in the conventional experimental condition. In a shear zone, the magnetic field causes the average size of fracture pits to decrease. Experimental data obtained in the research allow us to conclude that the magnetic field effect on aluminum in the process of creep leads to the fracture toughness value of the material decreasing, which will affect the state of defect substructure of the volume and surface layer of the material. The influence of the magnetic field is analyzed on the basis of the magneto-plasticity effect.

关键词： aluminum magnetic field creep structure

Compressively-strained GaSb nanowires with core-shell heterostructures

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Nano Research 2020年第9期13卷 2517-2524页

作者： Zhongyunshen Zhu Johannes Svensson Axel R.Persson Reine Wallenberg Andrei V.gromov Lars-Erik Wernersson Departm ent of Electrical and Information Technology Lund UniversityBox 11822100 LundSweden Centre for Analysis and Synthesis Lund UniversityBox 12422100 Lundt Sweden NanoLund Lund UniversityBox 11822100 LundSweden EaStCHEM School of ChemistryUniversity of EdinburghEdinburgh EH93FJUK

GaSb-based nanowires in a gate-all-around geometry are good candidates for binary p-type transistors,however they require the introduction of compressive strain to enhance the transport ***,we for the first time demonstrate epitaxial GaSb-GaASxSb1-x core-shell nanowires with a compressively strained *** axial and hydrostatic strain in GaSb core have been measured by X-ray diffraction(XRD)and Raman scattering,*** optimal sample,almost without plastic relaxation,has an axial strain of-0.88%and a hydrostatic strain of-1.46%,leading to a noticeable effect where the light hole band is calculated to be 33.4 meV above the heavy hole band at the *** valence band feature offers more light holes to contribute the transport process,and thus may provide enhanced hole mobility by reducing both the interband scattering and the hole effective *** results show that lattice-mismatched epitaxial core-shell heterostructures of high quality can also be realized in the promising yet demanding GaSb-based system.

关键词： compressive strain GaSb-GaAsxSbi-x core-shell nanowires heterostructure p-type transistors

Phase composition, conductivity, and sensor properties of cerium-doped indium oxide

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Does ethnicity and education influence preoperative disability and expectations in patients undergoing total knee arthroplasty?

纳米材料科学 2024年第2期 193页

作者： M.I.Ikim G.N.Gerasimov V.F.gromov O.J.Ilegbusi L.I.Trakhtenberg

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World Journal of Orthopedics 2018年第10期9卷 220-228页

作者： Madeline Therese Kudibal Thomas Kallemose Anders Troelsen Henrik Husted Kirill gromov Department of Orthopedic Surgery Copenhagen University Hospital Hvidovre Clinical Research Centre Copenhagen University Hospital Hvidovre

AIM To investigate whether minority ethnicity and the duration of education influence preoperative disability and expectations in patients undergoing total knee *** We prospectively included 829 patients undergoing primary unilateral total knee arthroplasty(TKA) from April 2013 to December 2014 at a single centre. Patients filled in pre-operative questionnaires with information regarding place of birth, duration of education, expectations for outcome of surgery and baseline characteristics. Patients were stratified based on ethnicity. Majority ethnicity was defined as born inthe study country and minority ethnicity was defined as born in any other country. Similarly, patients were stratified based on duration of education in groups defined as 12 years, *** We found that 92.2% of patients were of majority ethnicity. We found that 24.5%, 44.8% and 30.8% of patients had an education of 12 years, respectively. The mean preoperative(preOP) oxford knee score(OKS) in the total population was 23.6. Patients of minority ethnicity had lower mean pre-OP OKS(18.6 vs 23.9, P 12 years education had lower mean pre-OP OKS(21.5 vs 23.8 and 24.6, P 12 years education reported higher pain compared to patients with shorter educations. However, the response-rate was low(44.6%), and therefore post-OP results were not considered to be *** Minority ethnicity and the duration of education influ-ence preoperative disability and expectation in

关键词： Socioeconomic factors Ethnicity Education Expectations to surgery Preoperative disability Total knee arthroplasty

Early clinical outcome and learning curve following unilateral primary total knee arthroplasty after introduction of a novel total knee arthroplasty system

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World Journal of Orthopedics 2020年第10期11卷 431-441页

作者： Adam Omari Anders Troelsen Henrik Husted Christian Skovgaard Nielsen Kirill gromov Department of Orthopedic Surgery Copenhagen University Hvidovre HospitalCopenhagen 2650Denmark Department of Orthopedic Surgery Copenhagen University Hospital HvidovreCopenhagen 2650Denmark

BACKGROUND New implants for total knee arthroplasty(TKA)are continuously introduced with the proposed benefit of increased performance and improved *** information exists on how the introduction of a novel arthroplasty implant affects the perioperative and surgical outcome immediately after *** To investigate how surgery-related factors and implant positioning were affected by the introduction of a novel TKA *** A novel TKA system was introduced at our institution on 30th November ***-five TKAs performed with the Persona TKA immediately following its introduction by 3 different surgeons(25 TKAs/surgeon)were identified as the Introduction ***,the latest 25 TKAs performed by each surgeon prior to introduction of the Persona TKA were identified as the Control Group.A Follow-up Group of 25 TKAs/surgeon was identified starting 1-year after the end of the introduction ***,surgery-related factors and alignment data were recorded,and intergroup differences *** Following introduction of the novel implant,Persona TKA was utilized in 69%(71%),53%(54%),and 45%(75%)of primary TKA procedures by the three surgeons,respectively(Follow-up Group).Mean surgery time was increased by 28%(P<0.0001)and mean intra-operative blood loss by 25%(P=0.002)in the Introduction Group,while only the mean surgery time was increased in the Follow-up Group by 18%(P<0.0001).Overall alignment was similar between the groups apart from femoral flexion(FF)and tibial slope(TS).The number of FF outliers was reduced in the Introduction Group with a more pronounced decrease in the Follow-up *** Introduction of the new TKA implant increased surgical time and intraoperative blood loss immediately after its *** differences diminished one year after introduction of the new *** outliers with respect to FF and TS were seen when using the novel TKA *** studies are needed to investigat

关键词： Total knee arthroplasty Early outcome Novel introduction Implant positioning Knee Component choice

Stages and Fracture Mechanisms of Lamellar Pearlite of 100-m-Long Differentially Hardened Rails Under Long-Term Operation Conditions

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Acta Metallurgica Sinica(English Letters) 2018年第12期31卷 1356-1360页

作者： A.A.Yuriev V.E.gromov V.A.Grishunin Yu.F.Ivanov R.S.Qin A.P.Semin LTD Evraz-Integrated West Siberian MetallurgicalCombine NovokuznetskRussia Siberian State Industrial University NovokuznetskRussia National Research Tomsk Polytechnic University TomskRussia Institute of High Current Electronics SD RAS TomskRussia School of Engineering and Innovation The Open UniversityWalton HallMilton Keynes MK 7 6AAUK

Using the methods of transmission electron microscopy, the carbide phase evolution in surface layers of the differentiallyquenched rails is studied after the passed tonnage of 691.8 million tons at the depth up to 10 mm along the central axis andfillet of rail head. The action of two mutual supplement mechanisms of steel carbide phase transformation in surface layersat rail operation is established：（1） cutting mechanism of cementite particles with the following departure in the volume offerrite grains or plates （in pearlite structure）; （2） cutting mechanism and following dissolution of cementite particles,transfer of carbon atoms on dislocations （in Cottrell atmospheres and dislocation cores）, transfer of carbon atoms bymoving dislocations into ferrite grains volume （or plates） with the following repeated formation of nanosized cementiteparticles. The first mechanism is accompanied by the change in linear sizes and morphology of carbide particles. Cementiteelement composition change is not essential. Carbide structure change can take place during the second mechanism.

关键词： Cementite Pearlite Fracture Rails Mechanisms Operation

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软硬辛几何

数学译林 1989年第2期8卷 101-114页

作者：马力 gromov,M