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Browsing Conference papers by Title

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  • Detection of the vegetation change cover using landsat TM5 in the Burabay State National Natural Park, Kazakhstan 
    Taibassarova, Zh. (International Scientific and Practical Conference "Geosystemic approach to the study of the natural environment of the Republic of Kazakhstan", 2018-04-13)
    The SNNP «Burabay» is the famous touristic place in Kazakhstan, where the frequent climate change and anthropogenic activities has a significant impact in land cover change. Especially, there is significant impact on ...
  • Development of innovative lithium metal-free lithium-ion sulfur battery for renewable energy, electric transport and electronics 
    Hara, Toru; Konarov, Aishuak; Kurmanbayeba, Indira; Bakenov, Zhumabay (2015-01)
    Lithium/sulfur (Li/S) battery is a promising candidate for the next generation rechargeable battery since the negative electrode, lithium, and the cathode, sulfur, have the highest theoretical capacities of 3862 and of ...
  • Development of new type of wound dressing based on cryogel matrix with incorporated nanoparticles 
    Saliev, Timur; Kulsharova, Gulsim; Akhmetova, Alma; Nurgozhin, Talgat; Whitby, Ray D.L. (The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), 2014-08)
    A cryogel (polymethyl methacrylate) has been chosen as a basis for new type of wound dressings, where incorporated silver and gold nanoparticles do provide effective antibacterial protection [1]. This function will be ...
  • Economical comparison among rechargeable batteries for integrating renewable energy into electrical grids 
    Hara, Toru; Moldabayeva, Azhar; Korzhynbayeva, Kuralay; Melisova, Malika; Kurmanbayeva, Indira; Bakenov, Zhumabay (IMIE 2015, 2015-06)
    In this paper, economical comparison is conducted among non-toxic, non-flammable rechargeable batteries for integrating renewable energy into electrical grids. Two types of recently developed non-toxic aqueous batteries, ...
  • Effects of external disturbances on the momentum transport in cascade transitional boundary layer flows 
    Rojas-Solorzano, L. (Proceedings of FEDSM’98 1998 ASME Fluids Engineering Division Summer Meeting June 21-25, 1998, Washington, DC, 1998-06-21)
    The effects on the boundary layer receptivity in airfoil cascade flow caused by superposed disturbances are studied using an energetic approach. The separated terms in the Fluctuating Kinetic Energy (FKE) budget are ...
  • Efficient Data Aggregation in Wireless Sensor Networks with Multiple Sinks 
    Saginbekov, Sain; Yestemirova, Gaukhar (Nazarbayev University School of Engineering and Digital Sciences, 2018-05-12)
    A Wireless Sensor Network (WSN) is a network comprised of sensor nodes and a designated device called a sink to which nodes transmit their sensed data. Nodes are low-cost, battery-powered devices with limited memory and ...
  • Energy Detection Based Spectrum Sensing over Enriched Multipath Fading Channels 
    Bagheri, Alireza; Sofotasios, Paschalis C.; Tsiftsis, Theodoros A.; Ho-Van, Khuong; Loupis, Michael I.; Freear, Steven; Valkama, Mikko (2016)
    Energy detection has been for long constituting the most popular sensing method in RADAR and cognitive radio systems. The present paper investigates the sensing behaviour of an energy detector over Hoyt fading channels, ...
  • Energy Efficient Switching between Data Transmission and Energy Harvesting for Cooperative Cognitive Relaying Systems 
    Miridakis, Nikolaos I.; Tsiftsis, Theodoros A.; Alexandropoulos, George C.; Debbah, M´erouane (2016)
    A dual-hop cognitive (secondary) relaying system incorporating collaborative spectrum sensing to opportunistically switch between data transmission and energy harvesting is introduced. The secondary relays, first scan ...
  • Experimental Characterization of straight compound-channel turbulent field 
    Azevedo, Ricardo; Rojas-Solorzano, L.; Leal, João (2nd European IAHR Congress; 06/2012, 2012-06)
    Straight compound-channel flows have been studied by many authors, mainly concerned with mean flow variables. Detailed information on the complex turbulent field of these flows is still scarce. In the present paper, high ...
  • Experimental study of a gas-loquid cylindrical cyclone separator performance 
    Meléndez-Ramírez, Antonio J.; Reyes-Gutiérrez, Miguel A.; Rojas-Solorzano, L. (Proceedings of IMECE2004 2004 ASME International Mechanical Engineering Congress November 13-19, 2004, Anaheim, California, USA, 2004-11-13)
    New data of the experimental performance of a Gas-Liquid Cylindrical Cyclone (GLCC) separator are presented. The data were collected using a 2 3/4” (0.07m) ID GLCC model working with an air-glycerin mixture. The inlet ...
  • Fluid flow hydrodynamic modeling in the passage of an oil artificial lift pumping unit 
    Salazar S., Abraham; Rojas-Solorzano, L. (Proceeding of ETCE/OMAE2000 Joint Conference Energy for the New Millenium February 14-17, 2000, New Orleans, LA, 2000-02-14)
    The study of the two-phase flow through the standing and traveling valves used in an oil artificial-lift pumping unit is presented. The investigation aimed to determine the effects the gaseous phase may cause on the pump ...
  • Groundwater inflow modeling for a Kazakhstan copper ore deposit 
    Sagin, Jay; Yerikuly, Zhaiyk; Zhaparkhanov, Slyamhan; Panichkin, Vladimir; Miroshnichenko, Oxana; Mashtayeva, Shamshagul (2015)
    Mining exploration is widely spread throughout Kazakhstan and it is an important part of the country’s economy. However, mining can create landslides, as well as both surface and groundwater pollution. The purpose of this ...
  • High voltage outdoor insulator surface condition evaluation using aerial insulator images 
    Pernebayeva, Damira; Irmanova, Aidana; Sadykova, Diana; Bagheri, Mehdi; James, Alex (IET, 2019-09)
    High voltage insulator detection and monitoring via drone-based aerial images is a cost-effective alternative in extreme winter conditions and complex terrains. The authors examine different surface conditions of the outdoor ...
  • Modeling and simulation of a rollerball microfluidic device 
    Rojas-Solorzano, L.; Shelley L., Anna; Bradeddine, Bourtal; Amon, Cristina H. (Proceedings of the 7th International Conference on Nanochannels, Microchannels and Minichannels ICNMM2009 June 22-24, 2009, Pohang, South Korea, 2009-06-22)
    The fluid delivery process through a rollerball device is investigated by means of physical modeling and numerical simulations. The microfluidic device is intended to deliver liquid above a substrate interacting with the ...
  • Modeling hydrological ecosystem services and trade-offs under land use land cover change scenarios in the Syrdarya river basin 
    Meldebekova, G. (International Scientific and Practical Conference "Geosystemic approach to the study of the natural environment of the Republic of Kazakhstan", 2018-04-13)
    The Syrdarya river basin in Central Asia is facing a strong degradation of ecosystems and water quality deterioration mainly attributed to intensive agriculture. Predicted population growth and land use change call for ...
  • Multi-Objective Optimization Techniques using ANSYS-CFX-DesignXplorerTM. Case Study: Optimization of Static Mixer 
    Rojas-Solórzano, Luis R. (Nazarbayev University School of Engineering and Digital SciencesIMMM2017 (13-15 July, 2017): 4th Int. Conf. on Materials, Mechanics and Management College of Engineering Trivandrum, Kerala-INDIA, 2017-07)
  • New borate ester based polymer electrolyte for battery application 
    Kottegoda, I.R.M.; Bakenov, Zhumabay; Ikuta, H.; Uchimoto, Y.; Wakihara, M. (The Electrochemical Society, Inc., 2003-01)
    Safety is an indispensable feature for a battery particularly in large scale applications. In this respect, gel electrolytes are more attractive due to less possibility of electrolyte leakage and safer if abused. ...
  • Numerical simulation and experiments of the multiphase flow in a liquid-liquid cylindrical cyclone separator 
    Reyes, Miguel A.; Pacheco, Jorge E.; Marín, Juan C.; Rojas-Solorzano, L.; Rincón, José (Proceedings of FEDSM2006 2006 ASME Joint U.S. - European Fluids Engineering Summer Meeting July 17-20, Miami, FL, 2006-07-17)
    A Liquid-Liquid Cylindrical Cyclone separator (LLCC) is a device used in the petroleum industry to separate the oil-water mixture obtained from the well. The use of this device has not been widespread due to the lack of ...
  • Numerical simulation of draft tube flow in off-design conditions 
    Arzola, Fidel; Rojas-Solorzano, L. (IAHR 24th Symposium on Hydraulic Machinery and Systems OCTOBER 27-31, FOZ DO IGUASSU, 2008-10-27)
    Draft tube flow fields are simulated with 3D unsteady Reynolds averaged Navier-Stokes equations.The purpose of this study is the modeling, simulation and characterization of a complex threedimensional unsteady flow inside ...
  • Numerical simulation of the flow through an intermittent gas lift valve 
    Concho, Maria A.; Gasbarri, Sandro; Rojas-Solorzano, L. (Proceeding of ETCE/OMAE2000 Joint Conference Energy for the New Millenium February 14-17, 2000, New Orleans, LA, 2000-02-14)
    The numerical simulation of the flow through a pilot valve used in the oil intermittent gas lift process is presented.The complexity of the non-isothermal compressible flow is modeled by the solution of the Navier-Stokes, ...