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| 1 | Global spatio-temporally harmonised datasets for producing high-resolution gridded population distribution datasets显示文摘Multi-temporal,globally consistent,high-resolution human population datasets provide consistent and comparable population distributions in support of mapping sub-national heterogeneities in health,wealth,and resource access,and monitoring change in these over time.The production of more reliable and spatially detailed population datasets is increasingly necessary due to the importance of improving metrics at sub-national and multitemporal scales.This is in support of measurement and monitoring of UN Sustainable Development Goals and related agendas.In response to these agendas,a method has been developed to assemble and harmonise a unique,open access,archive of geospatial datasets.Datasets are provided as global,annual time series,where pertinent at the timescale of population analyses and where data is available,for use in the construction of population distribution layers.The archive includes sub-national census-based population estimates,matched to a geospatial layer denoting administrative unit boundaries,and a number of co-registered gridded geospatial factors that correlate strongly with population presence and density.Here,we describe these harmonised datasets and their limitations,along with the production workflow.Further,we demonstrate applications of the archive by producing multi-temporal gridded population outputs for Africa and using these to derive health and development metrics.The geospatial archive is available at http://gffzzd3cc09b8251d45dfscxxupbv5f9fx6v9p.ffgz.tsg.suse.edu.cn/10.5258/SOTON/WP00650. | Christopher T.Lloyd Heather Chamberlain David Kerr Greg Yetman Linda Pistolesi Forrest R.Stevens Andrea E.Gaughan Jeremiah J.Nieves Graeme Hornby Kytt MacManus Parmanand Sinha Maksym Bondarenko Alessandro Sorichetta Andrew J.Tatem | 2019 | Big Earth Data2019，3，2： | 4 |
| 2 | A review of hydrogen technologies and engineering solutions for railway vehicle design and operations显示文摘Interest in hydrogen-powered rail vehicles has gradually increased worldwide over recent decades due to the global pressure on reduction in greenhouse gas emissions,technology availability,and multiple options of power supply.In the past,research and development have been primarily focusing on light rail and regional trains,but the interest in hydrogen-powered freight and heavy haul trains is also growing.The review shows that some technical feasibility has been demonstrated from the research and experiments on proof-of-concept designs.Several rail vehicles powered by hydrogen either are currently operating or are the subject of experimental programmes.The paper identifies that fuel cell technology is well developed and has obvious application in providing electrical traction power,while hydrogen combustion in traditional IC engines and gas turbines is not yet well developed.The need for on-board energy storage is discussed along with the benefits of energy management and control systems. | Yan Sun M.Anwar N.M.S.Hassan Maksym Spiryagin Colin Cole | 2021 | Railway Engineering Science2021，29，3： | 4 |
| 3 | 一系悬挂对重载货车运行影响研究显示文摘传统三大件转向架没有一系悬挂,货车运行中,短波轨道不平顺作用下轮轨中低频响应对于货车的影响较为明显。部分重载货车采用橡胶垫作为一系悬挂,降低运行时轮轨相互作用对于货车动力学性能的影响。本文以一种澳大利亚铁路重载货物运输中大量采用的30t轴重三大件转向架货车作为研究对象,参考澳大利亚铁路行业安全标准,采用多体动力学仿真分析方法,建立货车完整动力学模型,比较分析四种一系悬挂下,货车在不同线路、不同速度、不同轮轨接触条件下的磨耗指数、脱轨系数与P2力,据此分析橡胶垫垂向刚度对于货车动力学性能的影响。研究结果表明:一系橡胶垫可以有效降低干燥轮轨接触状态下货车车轮的磨耗指数与P2力,但会造成轮轨润滑状态下货车车轮的磨耗指数与P2力的增大,一系橡胶垫对于货车脱轨系数影响并不明显。 | 李春胜 罗世辉 Colin Cole Maksym Spiryagin | 2018 | 铁道学报2018，40，8： | 3 |
| 4 | Enhanced application for FSRU recondensing equipment during periods of low or no gas send out to minimize LNG cargo losses显示文摘Most modern floating storage and regasification units(FSRU)are fitted with recondensing equipment that feed condensed boil-off gas(BOG)to the regasification unit in addition to a stream of liquefied natural gas(LNG)extracted from the cargo tanks.Use of the recondenser during regasification operations reduces gas losses on FSRU.It does so by avoiding consumption of excess BOG,with no associated commercial benefit,in gas combustion units(GCU),steam dumps,flares etc.Here we consider the benefits of also using the recondenser in recirculation mode,returning condensed BOG to the cargo tanks in the form of slightly warmed LNG.Such recirculation can be beneficial during periods of low or no gas send out from the FSRU,often achieving significant reductions in gas losses,although it is not standard practice in the industry to do so.Once regasification is halted not much BOG is required by the FSRU engine room,so the vessel must handle this excess.By condensing the BOG to LNG and returning it to the cargo tanks,the significant volume reduction involved has the beneficial impact of slowing down tank pressure increase.The saturated vapor pressure(SVP)of the LNG,linked to its composition and temperature,plays a key role in the boil-off rate and resulting cargo tank pressure changes.Detailed analysis is provided to explain how using the FSRU recondenser in recirculation mode can be best exploited by considering the prevailing fill levels,temperatures and pressures in each of the cargo tanks,and returning the condensed LNG preferentially to certain tanks.FSRU efficiency can be improved,gas losses and emissions can be reduced,and more cargo sold by exploiting the capabilities of the FSRU recondenser in recirculation mode.Running the FSRU in recirculation mode requires no equipment modifications to standard recondensers,neither does it increase FSRU operating costs. | Maksym Kulitsa David A.Wood | 2018 | Petroleum2018，4，4： | 3 |
| 5 | Strategies on the application of stem cells based therapies for the treatment of optic neuropathies显示文摘The retinal ganglion cells(RGCs)are not able to regenerate following optic nerve injury resulting in an irreversible vision loss in patients with optic neuropathies including glaucoma.Recent findings in ocular regeneration have opened promising avenues to apply stem cell-based modalities to restore vision in progressive optic neuropathies.Stem cellbased therapies can help to improve retinal regeneration by solving two major problems:(1)by preventing secondary degeneration of RGCs and preserving the remaining vision,and(2)by replacing degenerated RGCs and promoting RGC axon regeneration in the damaged area. | Sanaz Behtaj Maksym Rybachuk | 2021 | Neural Regeneration Research2021，16，6： | 2 |
| 6 | Free-space optical neural network based on thermal atomic nonlinearity显示文摘As artificial neural networks(ANNs)continue to make strides in wide-ranging and diverse fields of technology,the search for more efficient hardware implementations beyond conventional electronics is gaining traction.In particular,optical implementations potentially offer extraordinary gains in terms of speed and reduced energy consumption due to the intrinsic parallelism of free-space optics.At the same time,a physical nonlinearity—a crucial ingredient of an ANN—is not easy to realize in free-space optics,which restricts the potential of this platform.This problem is further exacerbated by the need to also perform the nonlinear activation in parallel for each data point to preserve the benefit of linear free-space optics.Here,we present a free-space optical ANN with diffraction-based linear weight summation and nonlinear activation enabled by the saturable absorption of thermal atoms.We demonstrate,via both simulation and experiment,image classification of handwritten digits using only a single layer and observed 6% improvement in classification accuracy due to the optical nonlinearity compared to a linear model.Our platform preserves the massive parallelism of free-space optics even with physical nonlinearity,and thus opens the way for novel designs and wider deployment of optical ANNs. | Albert Ryou James Whitehead Maksym Zhelyeznyakov Paul Anderson Cem Keskin Michal Bajcsy Arka Majumdar | 2021 | Photonics Research2021，9，4： | 2 |
| 7 | Real-time multibody modeling and simulation of a scaled bogie test rig显示文摘In wheel–rail adhesion studies,most of the test rigs used are simplified designs such as a single wheel or wheelset,but the results may not be accurate.Alternatively,representing the complex system by using a full vehicle model provides accurate results but may incur complexity in design.To trade off accuracy over complexity,a bogie model can be the optimum selection.Furthermore,only a real-time model can replicate its physical counterpart in the time domain.Developing such a model requires broad expertise and appropriate software and hardware.A few published works are available which deal with real-time modeling.However,the influence of the control system has not been included in those works.To address these issues,a real-time scaled bogie test rig including the control system is essential.Therefore,a 1:4 scaled bogie roller rig is developed to study the adhesion between wheel and roller contact.To compare the performances obtained from the scaled bogie test rig and to expand the test applications,a numerical simulation model of that scaled bogie test rig is developed using Gensys multibody software.This model is the complete model of the test rig which delivers more precise results.To exactly represent the physical counterpart system in the time domain,a real-time scaled bogie test rig(RT-SBTR)is developed after four consecutive stages.Then,to simulate the RT-SBTR to solve the internal state equations and functions representing the physical counterpart system in rigs used are simplified designs such as a single wheel or wheelset,but the results may not be accurate.Alternatively,representing the complex system by using a full vehicle model provides accurate results but may incur complexity in design.To trade off accuracy over complexity,a bogie model can be the optimum selection.Furthermore,only a real-time model can replicate its physical counterpart in the time domain.Developing such a model requires broad expertise and appropriate software and hardware.A few published works are available which deal with real-time modeling.However,the influence of the control system has not been included in those works.To address these issues,a real-time scaled bogie test rig including the control system is essential.Therefore,a 1:4 scaled bogie roller rig is developed to study the adhesion between wheel and roller contact.To compare the performances obtained from the scaled bogie test rig and to expand the test applications,a numerical simulation model of that scaled bogie test rig is developed using Gensys multibody software.This model is the complete model of the test rig which delivers more precise results.To exactly represent the physical counterpart system in the time domain,a real-time scaled bogie test rig(RT-SBTR)is developed after four consecutive stages.Then,to simulate the RT-SBTR to solve the internal state equations and functions representing the physical counterpart system in equal or less than actual time,the real-time simulation environment is prepared in two stages.To such end,the computational time improved from 4 times slower than real time to 2 times faster than real time.Finally,the real-time scaled bogie model is also incorporated with the braking control system which slightly reduces the computational performances without affecting real-time capability. | Sundar Shrestha Maksym Spiryagin Qing Wu | 2020 | Railway Engineering Science2020，28，2： | 2 |
| 8 | 工业燃气涡轮发动机变工况性能直接预测(英文)显示文摘The modern gas turbine engine has been used in current power generation industry for almost half a century. Gas turbines are designed to operate with the best efficiency during normal operating conditions and at specific operating points. However, the real world is non-optimal and the engine may have to operate at off-design conditions due to load requirements, different ambient temperatures, fuel types, relative humidity and driven equipment speed.Also more and more base-load gas turbines have to work today on partial load too, which can affect the hot gas path condition and life expectancy. At these off-design conditions, gas turbine's efficiency and life deterioration rate might significantly deviate from the design specifications. During a gas turbine's life, power generation providers might need to perform several overhauls or upgrades for their engines. Thus, the off-design performance after the overhaul also might be changed. Prediction of gas turbine's off-design performance is essential to economical operation of power generation equipment. In this paper, an integrated system for complex design and off-design performance prediction(Ax STREAM? Platform) is presented. It allows to predict gas turbine engine's design and off-design performance almost automatically. Each component's performance such as turbine, compressor, combustor and entire secondary flow(cooling) system is directly and simultaneously calculated for every off-design performance request, making possible to build an off-design performance map including cooling system. The example of off-design performance estimation of industrial gas turbine engine is presented. The presented approach provides wide capabilities for optimization of operation modes of industrial gas turbine engines and other complex turbomachinery systems for every specific operation conditions(environment, grid demands and other factors). | Leonid Moroz Valentyn Barannik Maksym Burlaka Abdul Nassar | 2018 | 风机技术2018，60，6： | 2 |
| 9 | , Beneficial and harmful effects of oscillatory mechanical strain on airway smooth muscle显示文摘 | Maksym GN Deng L Fairbank N J | 2005 | Canadian Journal of Physiology and Pharmacology2005，83，10： | 1 |
| 10 | Prospects of colloidal nanocrystals for electronic and op- toelectronicapplications显示文摘 | Dmitri V Talapin Jong-Soo Lee Maksym V Kovalenko | 2010 | Chem Rev2010，110，： | 1 |
| 11 | The role of stromal-derived factor-1 — CXCR7 axis in development and cancer显示文摘 | Radoslaw B. Maksym Maciej Tarnowski Katarzyna Grymula Joanna Tarnowska Marcin Wysoczynski Riu Liu Boguslaw Czerny Janina Ratajczak Magda Kucia Mariusz Z. Ratajczak | 2009 | European Journal of Pharmacology2009，，1： | 1 |
| 12 | Model- ling resistance and reactance with heterogeneous airway narrowing in mild to severe asthma I 显示文摘 | BHATAWADEKAR SA LEARY D MAKSYM GN | 2015 | Can J Physiol Pharmacol2015，93，3： | 1 |
| 13 | Valuing Environmental Assets on Rural Lifestyle Properties显示文摘 | Polyakov Maksym Pannell David J Pandit Ram Tapsuwan Sorada Park Geoff | 2013 | Agricultural and Resource Economics Review2013，，1： | 1 |
| 14 | The role of stromal-derived factor-l-CXCR7 axis in development and cancer显示文摘 | Maksym RB Tarnowski M Grymula K | 2009 | Eur J Pharmacol2009，625，13： | 1 |
| 15 | Multiaxial fatigue of titanium including step loading and load path alteration and sequence effects显示文摘 | Nima Shamsaei Maksym Gladskyi Kostyantyn Panasovskyi Sergiy Shukaev Ali Fatemi | 2010 | International Journal of Fatigue2010，，11： | 1 |
| 16 | Scaling the microrheology of living cells 显示文摘 | Fabry B Maksym G N Butler J P | 2001 | Physical Review Letters2001，87，14： | 1 |
| 17 | Control sys- tem for maximum use of adhesive forces of a railway behicle in a tractive mode 显示文摘 | Spiryagin Maksym Lee Kwan Soo Yoo Hong Hee | 2008 | Mechanical Systems and Signal Process- ing2008，22，： | 1 |
| 18 | The ultimate goal of modeling—Simulation of system and plant performance显示文摘Modern production processes in chemical, pharmaceutical and biological industries are characterized by complex process structures, which consist of different apparatuses and process steps. Modeling the entire process requires simulating all units altogether, while taking into account interconnections between them. Nevertheless, in the area of solids processing, there is nowadays an unfllled gap from the side of computer support of process modeling in allowing effective optimization and prediction of the behavior of the whole plant. This paper presents a tool for flowsheet simulation which allows the simulation of the stationary behavior of complex processes dealing with solids and its extension towards dynamic modeling. Also, a new simulation concept is proposed on the basis of the multiscale approach. On the macroscale, flowsheet simulation is performed with the help of the SolidSim system. Parameters for the macromodels in Solid- Sim are predicted by microscale simulation. The models for the two scales are then coupled by inter-scale communication laws. Application of the proposed modeling concept is shown by an example of fluidized bed granulation. | Joachim Werther Stefan Heinrich Maksym Dosta Ernst-Ulrich Hartge | 2011 | Particuology2011，9，4： | 1 |
| 19 | Quantum dots in a magnetic field: role of electron- electron interactions 显示文摘 | Maksym P A Chakraborty T | 1990 | Phys Rev Lett1990，，65： | 1 |
| 20 | Impact of Population Growth and Urban Sprawl on Land Use and Forest Type Dynamics along Urban-rural Gradient显示文摘 | Maksym Polyakov Daowei Zhang | 2008 | Global Change and Forestry: Economic and Policy Implications2008，，2： | 1 |
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