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Nitroxy-and azidomethyl azofurazans as advanced energetic materials

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Defence Technology（防务技术） 2022年第8期18卷 1369-1381页

作者： Aleksei B.Sheremetev Svetlana F.Mel'nikova Elizaveta S.Kokareva Ruslan E.Nekrutenko kirill V.Strizhenko Kyrill Yu Suponitsky Thanh Dat Pham Alla N.Pivkina Valery P.Sinditskii Zelinsky Institute of Organic Chemistry Russian Academy of Sciences47 Leninsky ProspMoscow119991Russia Saint Petersburg State Institute of Technology 26 Moskovskii PrSt Petersburg190013Russia Mendeleev University of Chemical Technology Moscow125047Russia N.N.Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences4 Kosygina Str119991MoscowRussia

Progress in the rocket industry is only possible on the basis of new, higher performance and more environmentally friendly materials compared to up-to-date propellant ingredients for liquid, solid, gelled and hybrid propellant systems. In this work, synthetic methods have been developed for the preparation of new energetic azofurazans bearing nitroxymethyl or azidomethyl groups. All prepared compounds were fully characterized by multinuclear NMR and IR spectroscopies, as well as elemental analyses. An analysis of the structural features based on the X-ray single-crystal diffraction made it possible to discuss their influence on the densities of the azofurazans of this study. Thermal decomposition and combustion of nitroxymethyl and azidomethyl azofurazans were studied using a number of complementary experimental techniques, namely thermogravimetry, differential scanning calorimetry, manometry, microthermocouple measurements in the combustion wave. The structural and physical characteristics of these new energetic analogues illustrate the extent to which the nature of the explosophoric groups can be used to tune the performace of the azofurazan framework. These azofurazans possess positive calculated enthalpy of formation and are promising candidates for new environmentally friendly energetic materials.

关键词： Azofurazan Azide Nitrate ester X-ray Combustion

Fuel Cycle for Reactor SVBR-100

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材料科学与工程（中英文B版） 2011年第7期1卷 929-937页

作者： Zrodnikov Anatoly Toshinsky Georgy Komlev Oleg Melnikov kirill Novikova Nataliya FSUE Institute for Physics and Power Engineering （IPPE） 1 Bondarenko sq. Obninsk Kaluga rg 249033 Russia

The report presents a validated strategy of implementation of fast reactors SVBR-100 in nuclear power, which provides putting in operation the reactors using the mastered uranium oxide fuel with postponed reprocessing and changing over to the closed fuel cycle with use of the own spent fuel. By the end of the lifetime, a comparatively high core breeding ratio (~0.84) of reactor SVBR-100 using uranium oxide fuel for operation provides high content of plutonium in the spent nuclear fuel, which could be used in next fuel lifetimes while organizing the closed fuel cycle. That strategy is more economically efficient as the amount of reprocessing in terms of 1 t of plutonium is approximately 10 times less than the corresponding amount of plutonium extracted from the spent nuclear fuel of thermal reactors. Such approach to organization of the fuel cycle will reduce considerably the integral consumption of natural uranium and regarding to this, it will make NPPs based on reactors SVBR-100 competitive with NPPs based on thermal reactors. The report also reveals that in the closed nuclear fuel cycle instead of pile (depleted) uranium, the spent fuel of thermal reactors without separating of uranium, plutonium, minor actinides and fission products can be used as makeup fuel similarly to the DUPIC-technology for reactors CANDU.

关键词：核燃料循环热核反应堆热中子反应堆铀燃料核电厂循环利用循环使用 IC技术

电环形谐振腔表面几何参数对太赫兹超材料吸收体性能的影响（英文）

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中国光学 2018年第1期11卷 47-59页

作者： GOMON Daniel SEDYKH Egor RODRíGUEZ Sebastian IDELFONSO Tafur Monroy ZAITSEV kirill VOZIANOVA Anna KHODZITSKY Mikhail ITMO大学俄罗斯圣彼得堡197101 埃因霍温技术大学荷兰埃因霍温鲍曼莫斯科国立技术大学俄罗斯莫斯科105005

本文分析了电环形谐振腔的几何参数对超材料吸收体吸收率的影响。文中详细分析了电环形谐振腔参数、介电层(间隔物)厚度和电环形谐振腔厚度对超材料吸收体的影响,在此基础上,设置正交实验分析了几种参数的综合影响,最终获得超材料的理... 详细信息

本文分析了电环形谐振腔的几何参数对超材料吸收体吸收率的影响。文中详细分析了电环形谐振腔参数、介电层(间隔物)厚度和电环形谐振腔厚度对超材料吸收体的影响,在此基础上,设置正交实验分析了几种参数的综合影响,最终获得超材料的理论吸收率。根据上述结果,制备了2个超材料吸收体的原理样机,经实验测得,原理样机的窄带吸收率高于98%。本文的研究成果为高性能吸收器的设计提供了指导。

关键词：超材料光谱太赫兹吸收器

Fungal dysbiosis predicts the diagnosis of pediatric Crohn's disease

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World Journal of Gastroenterology 2018年第39期24卷 4510-4516页

作者： Mohammad I El Mouzan kirill S Korolev Mohammad A Al Mofarreh Rajita Menon Harland S Winter Ahmad A Al Sarkhy Scot E Dowd Ahmad M Al Barrag Asaad A Assiri Department of Pediatrics King Saud UniversityRiyadh 11461Saudi Arabia Department of Pediatrics Supervisor of Prince Abdullah Bin Khalid Celiac Disease Research ChairKing Saud UniversityRiyadh 11461Saudi Arabia Bioinformatics Program Boston UniversityBostonMA 02215United States Al Mofarreh PolyClinic Riyadh 11423Saudi Arabia MassGeneral Hospital for Children BostonMA 02114United States MRDNA ShallowaterTX 79363United States Department of Microbiology King Saud UniversityRiyadh 11461Saudi Arabia

AIM To investigate the accuracy of fungal dysbiosis inmucosa and stool for predicting the diagnosis of Crohn's disease(CD). METHODS Children were prospectively enrolled in two medical centers: one university hospital and one private gastroenterology clinic in the city of Riyadh, Kingdom of Saudi Arabia. The children with confirmed diagnosis of CD by standard guidelines were considered cases, and the others were considered non-inflammatory bowel disease controls. Mucosal and stool samples were sequenced utilizing Illumina MiSeq chemistry following the manufacturer's protocols, and abundance and diversity of fungal taxa in mucosa and stool were analyzed. Sparse logistic regression was used to predict the diagnosis of CD. The accuracy of the classifier was tested by computing the receiver operating characteristic curves with 5-fold stratified cross-validation under 100 permutations of the training data partition and the mean area under the curve(AUC) was calculated. RESULTS All the children were Saudi nationals. There were 15 children with CD and 20 controls. The mean age was 13.9(range: 6.7-17.8) years for CD children and 13.9(3.25-18.6) years for controls, and 10/15(67%) of the CD and 13/20(65%) of the control subjects were boys. CD locations at diagnosis were ileal(L1) in 4 and colonic(L3) in 11 children, while CD behavior was non-stricturing and non-penetrating(B1) in 12 and stricturing(B2) in 3 children. The mean AUC for the fungal dysbiosis classifier was significantly higher in stools(AUC = 0.85 ± 0.057) than in mucosa(AUC = 0.71 ± 0.067)(P < 0.001). Most fungal species were significantly more depleted in stools than mucosal samples, except for Saccharomyces cerevisiae and S. bayanus, which were significantly more abundant. Diversity was significantly more reduced in stools than in mucosa. CONCLUSION We found high AUC of fungal dysbiosis in fecal samples of children with CD, suggesting high accuracy in predicting diagnosis of CD.

关键词： Fungiome Mycobiome Crohn’s disease Inflammation Saudi children

Automated Recovery of the 2012 Sumatera Aftershock Sequence Using Waveform Cross Correlation

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Journal of Earth Science and Engineering 2013年第7期3卷 437-460页

作者： Dmitry Bobrov Urtnasan Khukhuudei Ivan Kitov kirill Sitnikov Lassina Zerbo Comprehensive Nuclear-Test-Ban Treaty Organization Vienna 1400 Austria

We assess the performance of waveform cross correlation as applied to automatic and interactive processing of the aftershock sequence of the April 11, 2012 Sumatera Ms（IDC） = 8.2 earthquake. The XSEL （cross correlation standard event list） is compared to the REB （Reviewed Event Bulletin） issued by the IDC （International Data Centre）. The latter includes 1,181 aftershocks between April 11 and May 25. To automatically recover the sequence, sixteen aftershocks were selected from the IDC SEL3 （Standard Event List） available on April 13 and used as master events. Waveform templates from only seven IMS （International Monitoring System） array stations with the largest SNR （signal-to-noise ratio） for the main shock were used to calculate cross correlation coefficients. Approximately 620,000 arrivals were detected and then used to build events according to the IDC definition. After conflict resolution between event hypotheses with similar arrivals found by more than one master, all survived hypotheses populated the XSEL. The total number of distinct hypotheses was 4,924, with 2,763 hypotheses not matched by the REB, i.e. potentially new REB events. To evaluate the quality of the XSEL, we randomly selected a representative portion （-15%） from 2,763 hypotheses and reviewed them interactively according to standard IDC rules and guidelines. There were 119 new REB events built and 145 XSEL hypotheses rejected. Several frequency and probability density distributions have been constructed for all detections, the associated detections, the XSEL detections, the detections in the new REB, and rejected events.

关键词： Cross correlation array seismology nuclear test monitoring IDC CTBT

Geological Structure and Historical Development of Pre-Jurrasic Basement of West Siberia Oil- and Gas-Bearing Megabasin Karabash Zone

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Open Journal of Geology 2022年第10期12卷 717-738页

作者： kirill Svjatoslavich Ivanov Nikolay Pavlovich Kostrov Yuriy Viktorovich Erokhin Vladimir Sergeevich Ponomarev Institute of Geology and Geochemistry Urals Branch of Russian Academy of Sciences Yekaterinburg Russia

An additional comprehensive study of the west Siberia Karabash zone basement has been conducted. Core samples from more than 300 wells that opened the rocks of the basement were analyzed by different methods. A new map of the pre-Jurassic basement of Karabash zone of the west part of the Khanty-Mansi Autonomous Okrug (KhMAO) has been made. For the first time for the West Siberia megabasin U-Pb dating was made for samples from Shaim-Kuznetsovsk meganticlinorium and late to middle Devonian ages were obtained. The Devonian ages was obtained for metamorphic complexes of the region and, in general, for the basement of West Siberia. The complexes considered as Precambrian before that. The obtained results enable significantly to clarify more exact history of pre-Jurassic rock forming for the basement of the west part of West Siberia craton and its structure in the limits of Karabash zone. Thus, obtained data testify that in pre-Jurassic basement of the west part of the West Siberia (Karabash zone), filling grabens basalt effusion began during Permian time (probably at the end of early Permian) at sublatitudinal compression, that is, at collision, possibly immediately after or subsynchronously with the origin of the granite. On the edge of Permian and Triassic (or in early Triassic), sublatitudinal compression changed into stretching, and submeridional grabens came to existence and basalt effusion came up to the maximum.

关键词： Zircon Age Definition West Siberia Pre-Jurassic Basement Triassic Graben-Rifts

Mathematical Models of Emotional Robots with a Non-Absolute Memory

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Intelligent Control and Automation 2013年第2期4卷 115-121页

作者： Oleg G. Pensky Yuriy A. Sharapov kirill V. Chernikov National Research Perm State University Perm Russia

In this paper, we discuss questions of creating an electronic intellectual analogue of a human being. We introduce a mathematical concept of stimulus generating emotions. We also introduce a definition of logical thinking of robots and a notion of efficiency coefficient to describe their efficiency of rote (mechanical) memorizing. The paper proves theorems describing properties of permanent conflicts between logical and emotional thinking of robots with a nonabsolute rote memory.

关键词： Robot Robot’s Emotion Memory Ability to Forget Forgetful Robot

俄罗斯对“冰上丝绸之路”倡议的认知与政策研究

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俄罗斯对“冰上丝绸之路”倡议的认知与政策研究

作者：吉利（Strugovshchikov kirill）辽宁大学

学位级别：硕士

最近,北极地区越来越受到北极和非北极国家的关注。凭借巨大的自然资源储备和战略位置,北极正逐渐成为地缘政治的新中心。近年来,俄罗斯和中国以及其他许多国家已经在该地区采取了积极的政策。俄罗斯与中国在北极地区的积极联合合作始... 详细信息

最近,北极地区越来越受到北极和非北极国家的关注。凭借巨大的自然资源储备和战略位置,北极正逐渐成为地缘政治的新中心。近年来,俄罗斯和中国以及其他许多国家已经在该地区采取了积极的政策。俄罗斯与中国在北极地区的积极联合合作始于俄罗斯邀请中国共同开发俄罗斯北方海航道之后。随后,这一邀请成为中俄联合倡议——“冰上丝绸之路”,这是全球倡议“一带一路”的一组成部分。“冰上丝绸之路”倡议共建有助于新时代中俄全面战略协作伙伴关系发展、扩大及深化,无疑将使两国受益。由于俄罗斯在共建“冰上丝绸之路”中有重要的地位,其态度对于“冰上丝绸之路”能否顺利开展至关重要。通过研究俄罗斯对“冰上丝绸之路”进行的政策目标、规划、实践、影响等方面以及俄罗斯对该倡议的认知,能建立一个完整的分析框架以及对未来相关研究的基础。通过研究该倡议所存在的挑战和问题,能提前找到应对该问题和挑战的可能解决方案。作为中国全面战略伙伴和重要能源伙伴之一,俄罗斯在共建“冰上丝绸之路”的地位很重要。其北方海航道是“冰上丝绸之路”的核心。不过,北方海航道目前有不少问题:港口基础建设落后,现代破冰船队不足,恶劣天气条件等等。为了解决这些问题俄罗斯正在进行港口基础设施现代化政策,以及实施核动力破冰船建设“22220”项目。中俄共建“冰上丝绸之路”挑战跟北方海航道的问题很像。此外,其重要挑战包括:北方海航道短期内难以消除的发展客观限制,俄罗斯于其他北极国家存在的矛盾,自由航行的限制,等等。普京不少次强调该倡议对俄罗斯重要性,以其多次官方发言对“冰上丝绸之路”表达大力支持。同时,俄罗斯以对中国独特优惠的进行也表达“冰上丝绸之路”的赞成。俄罗斯学者认为共建“冰上丝绸之路”将对俄罗斯带来不少问题,其中包括:该倡议会影响北方海航道为俄罗斯国家的主要航线地位,以及会成为美国加大在北极地区军事存在的原因,对俄罗斯作为直接威胁。大多数俄罗斯媒体对“冰上丝绸之路”的看法与俄罗斯政府的观点相同,不过有些少数俄罗斯媒体对该倡议表达反对。北极和远东地区在俄罗斯政策中占有重要地位。这些地区进行的政策和存在的问题也很像。其问题包括:生活水平低,人口外流,投资吸引力不强。为了解决这些问题俄罗斯进行相应政策和措施。在北极地区进行《2035年前俄罗斯联邦北极地区国家基本政策》、《俄罗斯联邦北极地区的社会经济发展》计划以及实现“北极一公顷”、“北极之孩”等国家项目。在远东地区进行《2024年前远东发展国家纲要及2035年远景目标》政策,实现“远东一公顷”、“现代学校”等国家项目,以及简化外国公司在特别行政区的注册过程。除此之外,科技发展、环境保护、国际合作开发作为北极政策3个重要方向。不过这些地区政策的实现还没到达显著成效。原因是这些地区的发展制定计划文件不够完善。这些地区实施的政策是为短期发展而设计的,并且是为了大公司的利益而编写的,从而使北极和远东地区的发展变得困难。“冰上丝绸之路”框架内中俄北极能源合作发展作为两国合作的新推动力。液化天然气生产作为中俄北极能源合作的新方向,以及亚马尔液化天然气项目共实现为其主要成就。在未来,中俄共建“冰上丝绸之路”也将面临相当多的挑战。这主要是由于目前世界上的政治局势,特别是于俄乌冲突有关。对于俄罗斯来说,这些挑战跟西方对俄罗斯实施新制裁可能性有关,而对于中国来说,这些挑战跟中美贸易战升级可能性有关。无论如何,如果两国将加更多的精力和战略资源投入到“冰上丝绸之路”的共建中,将有助于为俄罗斯和中国的人民创造更好的福祉以及这将真正标志着中俄全面战略协作伙伴关系进入了新时代。

关键词： “冰上丝绸之路” 北方海航道新时代全面战略协作伙伴关系中俄合作

New variable stars from the photographic archive:semi-automated discoveries,attempts at automatic classification and the new field 104 Her

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Research in Astronomy and Astrophysics 2018年第8期18卷 29-40页

作者： Sergei V.Antipin Ignacio Becker Alexander A.Belinski Darya M.Kolesnikova Karim Pichara Nikolay N.Samus kirill V.Sokolovsky Alia V.Zharova Alexandra M.Zubareva P.K.Sternberg Astronomical Institute M.V.Lomonosov Moscow University13University Ave.Moscow 119234Russia Pontificia Universidad Catolica de Chile SantiagoChile Institute of Astronomy Russian Academy of Sciences48Pyatnitskaya Str.Moscow 109017Russia Institute for Applied Computational Science Harvard UniversityCambridgeMAUSA IAASARS National Observatory of Athens15236 PenteliGreece Astro Space Center of Lebedev Physical Institute Profsoyuznaya Str.84/32Moscow 117997Russia

Using 172 plates taken with the 40-cm astrograph of the Sternberg Astronomical Institute （Lomonosov Moscow University） in 1976-1994 and digitized with a resolution of 2400dpi, we dis- covered and studied 275 new variable stars. We present the list of our new variables with all necessary information concerning their brightness variations. As in our earlier studies, the new discoveries show a rather large number of high-amplitude Delta Scuti variables, predicting that many stars of this type re- main not detected in the whole sky. We also performed automated classification of the newly discovered variable stars based on the Random Forest algorithm. The results of the automated classification were compared to traditional classification and showed that automated classification was possible even with noisy photographic data. However, further improvement of automated techniques is needed, which is especially important when considering the very large numbers of new discoveries expected from all-sky surveys.

关键词： techniques photometric