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Balaji Murugan,Sang Yeol Lee 한국탄소학회 2023 Carbon Letters Vol.33 No.1
Devices with negative differential transconductance (NDT) and negative differential resistance (NDR) have shown a strong potential for digital electronics with high information density due to their N-shaped current–voltage (I–V) characteristics leading to multiple threshold voltages ( Vths). The 2D materials, such as graphene, hBN, MoS2, WS2, etc., offer an attractive platform to achieve NDT and NDR because of the absence of dangling bonds on the surface, leading to a high-quality interface between the layers. The 2D materials' unique property of the weak van der Waals (vdW) interactions without dangling bonds on the heterostructure devices shows the way for the applications more than-Moore devices. This review holds a well-timed overview of 2D materials-based devices to develop future multi-valued logic (MVL) circuits exhibiting high information density. Notably, the recent advances in emerging 2D materials are reviewed to support the directions for future research on MVL applications.
Balaji Wamanrao Kanwate,Tanaji G. Kudre 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.10
Influences of different extraction temperatures (50, 60, and 70 °C) and time (3, 6, and 9 h) on yield, physicochemical, and functional properties of gelatin from swim bladder (SBG) of rohu (Labeo rohita) were investigated. Gelatin extracted at 60 °C (G60-9 h), and 70 °C (G70-9 h) temperature for 9 h showed highest gelatin yield 54.91 g/100 g, protein (92.35 g/100 g), and hydroxyproline (77.50 mg/g) content (P < 0.05) compared to other counterparts. All extracted gelatin showed major protein components as α-, β-, and γ-chain with slight changes in band intensity. FTIR spectra showed significant loss of molecular order of triple-helix as temperature and time increased. Furthermore, G60-9 h exhibited higher emulsion, foaming, and gel strength than G70-9 h, and G50-9 h, respectively (P < 0.05). Therefore, G60-9 h could be appropriate conditions for the extraction of SBG with better yield, physicochemical, and functional properties.
Bilateral Total Hip Arthroplasty in a Rare Case of Multicentric Reticulohistiocytosis
Balaji Saibaba,Ramesh Kumar Sen,Aman Sharma 대한정형외과학회 2015 Clinics in Orthopedic Surgery Vol.7 No.4
Multicentric reticulohistiocytosis (MRH) is a rare systemic disease, which commonly manifests as muco-cutaneous papulonodules and inflammatory erosive polyarthropathy. In this research, we report the clinical manifestations and management of a rare case of MRH with destructive arthropathy of bilateral hip joints and arthritis mutilans presenting with characteristic deformities. Disabling hip arthropathy that occurs secondary to MRH can be successfully managed with bilateral total hip arthroplasty (THA). Osteopenia and acetabular bone defects must be anticipated during THA. This case is reported due to its rare occurrence and because little literature has been published regarding THA in such patients.
Synthesis of 2-Arylbenzothiazoles Catalyzed by Biomimetic Catalyst, β-Cyclodextrin
Balaji S. Londhe,Umesh R. Pratap,Jyotirling R. Mali,Ramrao A. Mane 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.8
Cyclocondensation of 2-aminothiophenol and aryl/heteryl aldehydes has been carried using biomimetic catalyst, β-Cyclodextrin in water and obtained 2-aryl/heteryl benzothiazoles with better to excellent yields. This biomimetic catalyzed route is simple, economic, and environmentally benign.
Non-Isolated Unidirectional Three-Port Cuk-Cuk Converter for Fuel Cell/Solar PV Systems
Balaji Chandrasekar,N. Chellammal,Bhargavi Nallamothu 전력전자학회 2019 JOURNAL OF POWER ELECTRONICS Vol.19 No.5
A DC-DC Non-Isolated Three-Port Cuk-Cuk (NI-TPCC) converter for interfacing renewable energy sources (RESs) such as Fuel Cell (FC) and Photovoltaic (PV) energy with a DC load is presented in this paper. It features single-stage power conversion from both of the input ports to the load port. The proposed NI-TPCC converter is designed based on the classical Cuk converter. The operational modes and power flow are analyzed in the continuous conduction mode (CCM), and the relationships among the port voltages are derived. Continuous currents in all three ports with less ripple enhance the performance of a fuel cell and its operating life. Furthermore, the output inductor is shared with both of the input ports, which reduces the number of active and passive components. The effectiveness of the designed NI-TPCC converter has been validated through simulation and experimental results.
GCD Matrix based PAPR Reduction Technique for OFDM System
Balaji Naik.M,SD Mohiddin Mehata,Bojja Durga Bhavani 보안공학연구지원센터 2014 International Journal of Signal Processing, Image Vol.7 No.5
Orthogonal Frequency Division Multiplexing (OFDM) is an efficient method of data transmission for high speed communication systems. One of the challenging issues for OFDM system is its high Peak-to-Average Power Ratio (PAPR) which causes inefficient use of the High Power Amplifier (HPA) and could limit transmission efficiency. In this paper we analyze the effects of PAPR on HPA and its reduction technique based on GCD matrix In Selected Mapping (SLM) method. Simulation results shows that the new phase sequence based SLM method has good performance in PAPR reduction.
Balaji Chandrasekaran,Ramadoss Balakrishnan,Yasuyuki Nogami 한국전자통신연구원 2019 ETRI Journal Vol.41 No.4
The major challenge in wireless body area networks (WBAN) is setting up a protected communication between data consumers and a body area network controller while meeting the security and privacy requirements. This paper proposes efficient and secure data communication in WBANs using a Twofish symmetric algorithm and ciphertext‐policy attribute‐based encryption with constant size ciphertext; in addition, the proposed scheme incorporates policy updating to update access policies. To the best of the author's knowledge, policy updating in WBAN has not been studied in earlier works. The proposed scheme is evaluated in terms of message size, energy consumption, and computation cost, and the results are compared with those of existing schemes. The result shows that the proposed method can achieve higher efficiency than conventional methods.
Balaji, M.,Ramkumar, S.,Kamaraj, V. The Korean Institute of Electrical Engineers 2014 Journal of Electrical Engineering & Technology Vol.9 No.1
A major problem in Switched Reluctance Motor (SRM) is torque ripple, which causes undesirable acoustic noise and vibration. This work focuses on reducing the undesirable torque ripple in SRM by modifying stator and rotor geometry. This paper presents a comparative study on torque ripple minimization in SRM with modified pole shapes such as stator pole taper, stator pole face with non-uniform air gap and pole shoe attached to rotor pole. Further this paper presents a detailed sensitivity analysis of the effect of different geometrical parameters that alter the pole face shapes on the performance of SRM. The analysis is performed using finite-element method considering average torque and torque ripple as performance parameters. Based on the analysis, a design combining stator pole taper with non-uniform air gap is proposed to improve the torque characteristics of SRM. The dynamic characteristics of the proposed design are simulated and the results show satisfactory reduction in torque ripple.