• Polyacrylonitrile-Nanofiber-Based Gel Polymer Electrolyte for Novel Aqueous Sodium-Ion Battery Based on a Na4Mn9O18 Cathode and Zn Metal Anode 

  Zhang, Yongguang; Bakenov, Zhumabay; Tan, Taizhe; Huang, Jin (MDPI, 2018-08-02)

  A gel polymer electrolyte was formed by trapping an optimized Na+/Zn2+ mixed-ion aqueous electrolyte in a polyacrylonitrile nanofiber polymer matrix. This electrolyte was used in a novel aqueous sodium-ion battery (ASIB) ...
• Three-Dimensional Hierarchical Porous Structure of PPy/Porous-Graphene to Encapsulate Polysulfides for Lithium/Sulfur Batteries 

  Zhang, Yongguang; Bakenov, Zhumabay (MDPI, 2018-08-09)

  Herein, we demonstrate the fabrication of a three-dimensional (3D) polypyrrole-coatedporous graphene (PPy/PG) composite through in-situ polymerization of pyrrole monomer on PG surface. The PPy/PG displays a 3D hierarchical ...
• Black Hole Bounces on the Road to Quantum Gravity 

  Malafarina, Daniele (MDPI, 2018-08-28)

  Quantum resolutions of the space-time singularity at the end of gravitational collapse may provide hints towards the properties of a final theory of Quantum-Gravity. The mechanism by which the singularity is avoided and ...
• L Chromosome Behaviour and Chromosomal Imprinting in Sciara Coprophila 

  Singh, Prim B.; Belyakin, Stepan (2018-09-03)

  The retention of supernumerary chromosomes in the germ-line of Sciara coprophila is part of a highly-intricate pattern of chromosome behaviours that have fascinated cytogeneticists for over 80 years. Germ-line limited ...
• Revisiting the Effect of Slag in Reducing Heat of Hydration in Concrete in Comparison to Other Supplementary Cementitious Materials 

  Moon, Hoon; Ramanathan, Sivakumar; Suraneni, Prannoy; Shon, Chang-Seon; Lee, Chang-Joon; Chung, Chul-Woo (MDPI, 2018-09-27)

  Blast furnace slag (SL) is an amorphous calcium aluminosilicate material that exhibits both pozzolanic and latent hydraulic activities. It has been successfully used to reduce the heat of hydration in mass concrete. ...
• Densities for Ternary System of CaCl2–H2O–CO2 at Elevated P-T: An Experimental and Modeling Approach 

  Bastami, Alireza; Pourafshary, Peyman; Shafiei, Ali (MDPI, 2018-10-20)

  Very few thermodynamic models exist for estimation of density alteration due to solution of CO2 in a pure H2O and CaCl2–H2O system. All of these models require density of CaCl2 solution to estimate density of CaCl2–H2O–CO2 ...
• Assessment of Green Practices in Residential Buildings: A Survey-Based Empirical Study of Residents in Kazakhstan 

  Tokbolat, Serik; Karaca, Ferhat; Durdyev, Serdar; Nazipov, Farnush; Aidyngaliyev, Ilyas (MDPI, 2018-11-23)

  In the lead-up to the Paris climate change conference, the majority of the UN Member States submitted their Intended Nationally Determined Contributions on carbon emissions reduction to be met by 2030. Kazakhstan is no ...
• Spacetime Continuity and Quantum Information Loss 

  Good, Michael R. R. (MDPI, 2018-11-09)

  Continuity across the shock wave of two regions in the metric during the formation of a black hole can be relaxed in order to achieve information preservation. A Planck scale sized spacetime discontinuity leads to unitarity ...
• Sudden Event Monitoring of Civil Infrastructure Using Demand-Based Wireless Smart Sensors 

  Fu, Yuguang; Mechitov, Kirill; Kim, Jong R.; Zhang, Dichuan (MDPI, 2018-12-18)

  Wireless smart sensors (WSS) have been proposed as an effective means to reduce the high cost of wired structural health monitoring systems. However, many damage scenarios for civil infrastructure involve sudden events, ...
• Non-Uniformity of the Indoor Radon Concentration under a Convective Mixing Mechanism 

  Spotar, Sergey; Ibrayev, Nurlan; Uyzbayeva, Aigerim; Atabayev, Jamil (MDPI, 2018-12-11)

  This paper focuses on the results of computational fluid dynamics (CFD) modeling of radon concentration distribution in living areas within residences. The COMSOL Multiphysics® 5.3 software package has been employed for ...
• Etched Fiber Bragg Grating Biosensor Functionalized with Aptamers for Detection of Thrombin 

  Bekmurzayeva, Aliya; Dukenbayev, Kanat; Shaimerdenova, Madina; Bekniyazov, Ildar; Ayupova, Takhmina; Sypabekova, Marzhan; Molardi, Carlo; Tosi, Daniele (MDPI, 2018-12-06)

  A biosensor based on an etched Fiber Bragg Grating (EFBG) for thrombin detection is reported. The sensing system is based on a Fiber Bragg Grating (FBG) with a Bragg wavelength of 1550 nm, wet-etched in hydrofluoric acid ...
• Proportioning and Characterization of Reactive Powder Concrete for an Energy Storage Pile Application 

  Bektimirova, Umut; Shon, Chang-Seon; Zhang, Dichuan; Sharafutdinov, Eldar (MDPI, 2018-12-06)

  Reactive Powder Concrete (RPC) is a newly emerging concrete material that is being used for various applications where high-strength concrete is required. RPC is obtained by removing coarse aggregates and adding fine ...
• Wavelet-Based Demodulation of Multimode Etched Fiber Bragg Grating Refractive Index Sensor 

  Ayupova, Takhmina; Sypabekova, Marzhan; Molardi, Carlo; Bekmurzayeva, Aliya; Shaimerdenova, Madina; Dukenbayev, Kanat; Tosi, Daniele (MDPI, 2018-12-22)

  Etched fiber Bragg grating (EFBG)-based sensors are used as evanescent field sensors for refractive index detection. When the fiber thickness is thin and the refractive index sensitivity increases, the number of propagating ...
• Electro-Discharge Machining of Ceramics: A Review 

  Bilal, Azat; Jahan, Muhammad Pervej; Talamona, Didier; Perveen, Asma (MDPI, 2018-12-25)

  Conventional machining techniques of ceramics such as milling, drilling, and turning experience high cutting forces as well as extensive tool wear. Nevertheless, non-contact processes such as laser machining and ...
• Can Common Reed Fiber Become an Effective Construction Material? Physical, Mechanical, and Thermal Properties of Mortar Mixture Containing Common Reed Fiber 

  Shon, Chang-Seon; Mukashev, Temirlan; Lee, Deuckhang; Zhang, Dichuan; Kim, Jong R. (MDPI, 2019-02-11)

  Due to the increased demands of adapting the sustainability concept in the construction industry, many researchers have developed and evaluated the composite materials made with agricultural by-products, such as straws, ...
• Ultrasonic Vibration Assisted Electro-Discharge Machining (EDM)—An Overview 

  Sabyrov, Nurbol; Jahan, M. P; Bilal, Azat; Perveen, Asma (MDPI, 2019-02-10)

  Many of the industrial processes, including material removal operation for shape generation on the surface of material, exploit the assistance of ultrasonic vibrations. This trend of using ultrasonic vibration in order ...
• On PWM Strategies and Current THD for Single- and Three-Phase Cascade H-Bridge Inverters with Non-Equal DC Sources 

  Akhmetov, Zhansen; Hammami, Manel; Grandi, Gabriele; Ruderman, Alex (MDPI, 2019-01-30)

  Cascade H-bridge (CHB) inverter is an attractive choice for integration of DC sources of different nature, e.g., for distributed generation with energy storage, photovoltaic generation, etc. In general, non-equal DC ...
• Three-Phase Three-Level Flying Capacitor PV Generation System with an Embedded Ripple Correlation Control MPPT Algorithm 

  Hammami, Manel; Ricco, Mattia; Ruderman, Alex; Grandi, Gabriele (MDPI, 2019-01-22)

  This paper presents the implementation of a maximum power point tracking (MPPT) algorithm in a multilevel three-phase photovoltaic (PV) system using the ripple correlation control (RCC) method. Basically, RCC adopts the ...
• Pediatric Celiac Disease in Central and East Asia: Current Knowledge and Prevalence 

  Poddighe, Dimitri; Rakhimzhanova, Marzhan; Marchenko, Yelena; Catassi, Carlo (MDPI, 2019-01-12)

  The current prevalence of pediatric Celiac Disease (CD) is estimated to be around 1% in the general population, worldwide. However, according to the geographic area, a great variability of CD prevalence has been described. ...
• Renewable Energy Sources and Battery Forecasting Effects in Smart Power System Performance 

  Bagheri, Mehdi; Nurmanova, Venera; Abedinia, Oveis; Naderi, Mohammad Salay; Ghadimi, Noradin; Naderi, Mehdi Salay (MDPI, 2019-01-24)

  In this study, the influence of using acid batteries as part of green energy sources, such as wind and solar electric power generators, is investigated. First, the power system is simulated in the presence of a lead–acid ...

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