Adaptation of block chain technology in SCM for steering managerial strategies: investigative study under Indian context

Atul Kumar Sahu,Abhijeet Katyayan,Umesh Khandey,Prashant Jangde,Anoop Kumar Sahu,Nitin Kumar Sahu 인하대학교 정석물류통상연구원 2023 JOURNAL OF INTERNATIONAL LOGISTICS AND TRADE Vol.21 No.1

Purpose – Block chain technology (BCT) has apparent capability of handling information in digital format, which has dragged attention of the practitioners for its utility in industrial and manufacturing practices. Conversely, the managerial adoption of BCT is relatively limited, which motivated the authors to identify crucial dimensions that can persuade the acceptance of BCT from an executive perspective. Thus, the present study is aimed to conduct to understand crucial barriers under BCT for managerial implementation in supply chain management (SCM) of small and medium enterprises (SMEs). Design/methodology/approach – The present study investigated evident barriers to understand implementation of BCT. A questionnaire based survey is performed to collect primary data from service and manufacturing based companies in India. Survey responses are received online and the data is analyzed in a scorecard. The scorecard embedded the scribed entries of Likert scale to determine the relative score. Findings – In present study, sixteen barriers from three categories named as technological, organizational and environmental are evaluated, where, five sub-barriers from technological domain, seven sub-barriers from organizational domain and four sub-barriers from environmental domain are evaluated. The findings of the study determined that the three factors, i.e. “complexity in setup/use”, “Security and privacy concern” and “Technological awareness” mostly affect the adaptation of BCT in SCM. Conversely, “Market dynamics”, “Scalability” and “Cost” do not influence the intention to adopt the technology. Originality/value – Only few studies have endeavored to ascertain the BCT adoption in SCM of SMEs in developing country like India. Thus, the study is filling a momentous gap of mapping BCT dimensions in the scholastic literature. The findings are expected to enable SMEs to understand important factors to be considered for adopting BCT in their curriculum. Furthermore, the study may benefit the BCT developers and suppliers to endure customized solutions based on the findings.

Synthesis and Evaluation of Antimicrobial Activity of 1, 3, 4-Thiadiazole Analogues for Potential Scaffold

Sahu, Sagar,Sahu, Tanesh,Kalyani, Gunjan,Gidwani, Bina KOREAN PHARMACOPUNCTURE INSTITUTE 2021 Journal of pharmacopuncture Vol.24 No.1

Objectives: Pathogenic microbes are causal agents for various types of severe and even lethal infectious diseases. Despite of development in medication, bacterial and fungal infections still persist to be a vital problem in health care. Bacteria and several fungal species have shown resistance to antibiotics used in treatment to current medications. Therefore, it is a considerable field of interest in the design and development of novel compounds with antimicrobial activity. Methods: The compounds bearing a heterocyclic ring play an imperative role among other organic compounds with pharmacological activity used as drugs in human for control and cure of various infections. Thiadiazoles containing nitrogen-sulfur atom as part of their cyclic structure which shown wide-ranging application as structural units of biologically active molecules and are very useful intermediates in Medicinal Chemistry. Results: The effectiveness of the thiadiazole nucleus was established by the drugs currently used for the treatment of various infections. 1,3,4-Thiadiazoles and some of their derivatives are widely studied because of their broad spectrum of pharmacological activities. Conclusion: In the present work, a series of 1,3,4-Thiadiazole derivatives were synthesized by cyclization of a group of various benzaldehyde with thiosemicarbazide in the presence of various reagent like FeCl3, HCHO by losing a molecule of water. These derivatives were found to possess prominent antimicrobial activity.

Winter Thermal Inversion and Trichodesmium Dominance in North-Western Bay of Bengal

Biraja Kumar Sahu,Sanjiba Kumar Baliarsingh,Aneesh A. Lotliker,Chandanlal Parida,Suchismita Srichandan,Kali Charan Sahu 한국해양과학기술원 2017 Ocean science journal Vol.52 No.2

Clear thermal inversion was observed with cold surface waters (< 24°C) overlying the warm (> 26°C) subsurface water in the coastal waters of the northwestern Bay of Bengal during winter (January 2015). Simultaneously, preponderance of the cyanobacteria Trichodesmium erythraeum was observed dominating the phytoplankton community with > 90% of total population, reaching maximum density of 9.8 × 105 filaments/L. Further, the Trichodesmium predominance was associated with low water temperature (< 24°C).

Extraction of copper by leaching of electrostatic precipitator dust and two step removal of arsenic from the leach liquor

N. K. Sahu,Barsha Dash,Suchismita Sahu,I. N. Bhattacharya,T. Subbaiah 한국화학공학회 2012 Korean Journal of Chemical Engineering Vol.29 No.11

The paper deals with the extraction of copper from the deposited material of the liner of the electrostatic precipitator (ESP) of the copper smelter plant. These precipitates of ESP liner (ESP dust) generally contain mixed phases of copper and arsenic. An attempt is made to extract copper from ESP dust, subsequently removing arsenic from the leach liquor. The ESP dust containing paramelaconite (6CuO·Cu2O), α-domeykite (Cu3As), metadomeykite (Cu3As),enargite (Cu3AsS4) and (Cu,Fe) SO4·H2O is not a naturally occurring geological mineral; thus comparatively high acid concentration and temperature are required to break the matrix of this mixed material so as to liberate the content. The leaching efficiency of copper was 97% at 97 oC. The acid concentration of 1.5M and pulp density of 20% was found to be optimum. The removal of arsenic as ferric arsenate was carried out in two stages: increasing the pH and precipitation of arsenic by adjusting pH of the solution and by adding ferrous sulfate and hydrogen peroxide. The optimum removal of arsenic was 95% when pH was raised to 2.35 followed by precipitation. The key progression of the process is the recovery of copper from ESP dust as well as removal of arsenic from the leach liquor.

A novel alendronate functionalized nanoprobe for simple colorimetric detection of cancer-associated hypercalcemia

Sahu, Abhishek,Hwang, Youngmin,Vilos, Cristian,Lim, Jong-Min,Kim, Sunghyun,Choi, Won Il,Tae, Giyoong The Royal Society of Chemistry 2018 Nanoscale Vol.10 No.28

<P>The calcium (Ca<SUP>2+</SUP>) ion concentration in the blood serum is tightly regulated, and any abnormalities in the level of serum calcium ions are associated with many potentially dangerous diseases. Thus, monitoring of the Ca<SUP>2+</SUP> ion concentration in the blood serum is of fundamental importance. Gold nanoparticle (GNP)-based colorimetric biosensors have enormous potential in clinical diagnostic applications due to their simplicity, versatility, and unique optical properties. In this study, we have developed an alendronate functionalized gold nanoparticle (GNP-ALD) system for the measurement of Ca<SUP>2+</SUP> ion concentration in biological samples. The GNP-ALD system showed higher sensitivity towards the Ca<SUP>2+</SUP> ion compared to adenosine diphosphate (ADP) or adenosine triphosphate (ATP). The strong interaction between the Ca<SUP>2+</SUP> ion and ALD at the GNP/solution interface resulted in significant aggregation of the ALD conjugated GNPs, and induced a color change of the solution from red to blue, which could be visually observed with the naked eye. The interaction between the Ca<SUP>2+</SUP> ion and GNP-ALD was characterized by UV-visible spectroscopy, transmission electron microscopy (TEM) imaging, and dynamic light scattering (DLS) analysis. Under the optimized conditions, the lower limit of Ca<SUP>2+</SUP> ion detection using this method was found to be 25 μM and a linear response range from 25 μM to 300 μM Ca<SUP>2+</SUP> ions was obtained with excellent discrimination against other metal ions. The GNP-ALD nanoprobe could successfully determine the ionized Ca<SUP>2+</SUP> concentration in various serum samples and the results were validated using a commercial calcium assay kit. Moreover, as a practical application, we demonstrated the utility of this nanoprobe for the detection of cancer-associated hypercalcemia in a mouse model.</P>

Controlled Growth, Microstructure, and Properties of Functional Si Quantum Dot Films via Plasma Chemistry and Activated Radicals

Sahu, Bibhuti Bhusan,Yin, Yongyi,Han, Jeon Geon American Chemical Society 2017 JOURNAL OF PHYSICAL CHEMISTRY C - Vol.121 No.18

<P>Control of plasma and radical generation and associated energy deposition near the growing thin films are still the main challenges in materials fabrication in the plasma-assisted deposition of Si quantum dot (QD) thin film. To control and enhance the materials performance concerning film properties and application durability, we prepare 2.6 nm sized Si QDs with a fully ordered structure and entrapped them in amorphous silicon nitride using advanced dual frequency capacitively coupled plasmas. Raman and XRD analyses consistent with the high-resolution transmission electron micrographs reveal that the QD size can be controlled and altered from similar to 2.6 to 4.0 nm simply by changing the operating pressure, which affects the films crystallinity in a broad range from 60% to 72% and the resulting microstructure. Further, a broad visible range similar to 1.83.0 eV photoluminescence, with intense intensity and narrow to broad widths, is observed from Si QDs films. It is also seen that the observed photoluminescence featured is due to the quantum confinement effect within the QD material. Data reveal that the film properties are controllable by modifying a change in the plasma properties and radical parameters. The radio frequency and ultrahigh frequency dual frequency plasmas at low operating pressures have produced a very high atomic density of H and N radicals and a very high plasma density at low electron temperature, which are critically necessary and favorable to the control of film growth, nucleation, and other film properties. It is also seen that the deposition energy plays a significant role for the resulting microstructure and the QD size. The high luminescent yields in the visible range with a PL lifetime of similar to 0.75 ns and size-tunable low-temperature deposition with plasma and radical control enable these QD materials as a good candidate for light emitting applications. Additionally, a plausible mechanism is foreseen for the QD film formation.</P>

Silicon Solar Cells with Embedded Silicon-on-Insulation Layer via Nitrogen Ion Beam Implantation

Sahu, Rajkumar,Palei, Srikanta,Mun, Jonghun,Kim, Keunjoo Wiley (John WileySons) 2018 Physica status solidi. PSS. A, Applications and ma Vol.215 No.20

A Study of SCEs and Analog FOMs in GS-DG-MOSFET with Lateral Asymmetric Channel Doping

Sahu, P.K.,Mohapatra, S.K.,Pradhan, K.P. The Institute of Electronics and Information Engin 2013 Journal of semiconductor technology and science Vol.13 No.6

The design and analysis of analog circuit application on CMOS technology are a challenge in deep sub-micrometer process. This paper is a study on the performance value of Double Gate (DG) Metal Oxide Semiconductor Field Effect Transistor (MOSFET) with Gate Stack and the channel engineering Single Halo (SH), Double Halo (DH). Four different structures have been analysed keeping channel length constant. The short channel parameters and different sub-threshold analog figures of merit (FOMs) are analysed. This work extensively provides the device structures which may be applicable for high speed switching and low power consumption application.

Comparison of plasma excitation, ionization, and energy influx in single and dual frequency capacitive discharges

Sahu, B. B.,Han, Jeon G. American Institute of Physics 2016 Physics of plasmas Vol.23 No.12

Prussian blue/serum albumin/indocyanine green as a multifunctional nanotheranostic agent for bimodal imaging guided laser mediated combinatorial phototherapy

Sahu, A.,Lee, J.H.,Lee, H.G.,Jeong, Y.Y.,Tae, G. Elsevier Science Publishers 2016 Journal of controlled release Vol.236 No.-

<P>Developing novel nanotheranostic agent using only clinically approved materials is highly desirable and challenging. In this study, we combined three clinically approved materials, Prussian blue (PB), serum albumin (BSA), and indocyanine green (ICG), by a simple and biocompatible method to prepare a multifunctional theranostic PB-BSA-ICG nanoparticle. The multifunctional nanoparticle system could provide dual mode magnetic resonance (MR) and near infrared (NIR) fluorescence imaging as well as combined photothermal and photodynamic (PTT-PDT) therapy in response to a single NIR laser. This nanoparticle showed an excellent stability in physiological solutions and could suppress the photo-instability of ICG. In the absence of light, the nanoparticles showed no cytotoxicity, but significant cell death was induced through combined PTT-PDT effect after irradiation with NIR laser light. A high tumor accumulation and minimal nonspecific uptake by other major organs of PB-BSA-ICG nanoparticle were observed in vivo, analyzed by T-1-weighted MR and NIR fluorescence bimodal imaging in tumor xenograft mice after intravenous injection. The nanoparticles efficiently suppressed the tumor growth through combinatorial phototherapy with no tumor recurrence upon a single NIR laser irradiation. These results demonstrated that PB-BSA-ICG is potentially an interesting nanotheranostic agent for imaging guided cancer therapy by overcoming the limitations of each technology and enhancing the therapeutic efficiency as well as reducing side effects. (C) 2016 Elsevier B.V. All rights reserved.</P>