Search results for: Ashutosh Tiwari

Items from 1 to 20 out of 217 results

article

Role of prazosin in patients with Guillain–Barré syndrome with sympathetic overactivity: A cohort study

Mritunjai Kumar, Abhishek Guin, Anu Singh, Rajni Singh, more

Introduction/Aims In Guillain–Barré syndrome (GBS), patients with dysautonomia demonstrate sympathetic overactivity (SO). This study assessed the role of prazosin (α₁‐blocker) in the management of SO. Methods This cohort study was conducted from January 2022 to September 2023. Thirty‐two GBS patients with SO received prazosin (2.5–10 mg three times a day) (prazosin group). For comparison, we included...

article

A Quantum Chemical Study on the Enormously Large Nonlinear Optical Response of Doped Endohedral Superalkali Na₂F and Superhalogens MF₄ (M = B, Al) with CNT (C56H16) Cage

Vijay Singh, Paul Mathias Masanja, Apoorva Dwivedi, Ashutosh Tiwari, more

Macromolecular Symposia > 413 > 1 > n/a - n/a

In the present communication, the interaction of single‐wall carbon nanotubes (SWCNTs) CNT (C56H16) with endohedral doped superhalogens (MF₄:M = B, Al) placed outside of CNT cage and superalkali (Na₂F) placed inside the cage has been studied by using a combination of DFT/B3LYP method and 6–311G(d, p) basis set. The geometry and stability of MF₄@CNT‐Li₂F have been studied using optimization parameters,...

article

Role of T2 relaxometry in localization of mesial temporal sclerosis and the degree of hippocampal atrophy in patients with intractable temporal lobe epilepsy: A cross sectional study

Prasenjit Sarkar, Poonam Sherwani, Rahul Dev, Ashutosh Tiwari

Hippocampus > 33 > 11 > 1189 - 1196

Mesial temporal lobe epilepsy is one of the most common causes of refractory epilepsy worldwide. A good percentage of patients do not have detectable hippocampal atrophy on magnetic resonance imaging (MRI). The objective of this study is to evaluate whether T2 relaxometry can identify hippocampal pathology and lateralize the epileptic focus in patients with intractable temporal lobe epilepsy (TLE)...

article

Evaluation of major factors influencing the TBC topcoat formation in axial suspension plasma spraying (SPS)

Jana Joeris, Ashutosh Tiwari, Steffen Brinckmann, Frank Kurze, more

International Journal of Applied Ceramic Technology > 20 > 2 > 884 - 895

Suspension plasma spraying (SPS) is ideally suited to produce porous or dense columnar, strain‐tolerant thermal barrier coatings (TBCs) and also offers the possibility of producing other microstructures such as feathery and dense vertically cracked coatings. The specific properties of the TBC are significantly influenced by the formed microstructure, that is, affected by feedstock material and process...

article

Circular business models in high value manufacturing: Five industry cases to bridge theory and practice

Okechukwu Okorie, Fiona Charnley, Jennifer Russell, Ashutosh Tiwari, more

Business Strategy and the Environment > 30 > 4 > 1780 - 1802

The transition to a circular economy (CE) requires companies to evaluate their resource flows, supply chains, and business models and to question the ways in which value is created. In the high value manufacturing (HVM) sector, this evaluation is critical, as HVM enables value in nonconventional forms, beyond profit, including unique production processes, brand recognition, rapid delivery times, and...

article

Compositional Investigations on the Spin Thermoelectric Effect in Ta_100–xCu_x/Yttrium Iron Garnet Thin Films

Yinong Yin, Ashutosh Tiwari

physica status solidi (RRL) – Rapid Research Letters > 15 > 1 > n/a - n/a

Herein, the performance of spin thermoelectric devices comprising Ta_100–xCu_x/yttrium iron garnet (YIG) films is investigated. Metallic electrodes of Ta_100–xCu_x (x = 2, 3, 4, 5, and 7) are fabricated on high‐quality YIG films by magnetron sputtering technique. On each film, an undoped Ta electrode is also fabricated for the sake of precise comparison of spin thermoelectric performance. The hybrid...

article

A Review of Strategies for Developing Promising Thermoelectric Materials by Controlling Thermal Conduction

Yinong Yin, Karthikeyan Baskaran, Ashutosh Tiwari

physica status solidi (a) > 216 > 14 > n/a - n/a

Thermoelectric (TE) materials can play an important role in developing next‐generation advanced energy conversion technologies. The underlying principle for thermoelectric power generation is the utilization of Seebeck effect in which temperature differences drive the electrical current. The performance of a TE material is evaluated by a dimensionless figure of merit, ZT, expressed as ZT = S²σT/κ...

article

A Review of Strategies for Developing Promising Thermoelectric Materials by Controlling Thermal Conduction (Phys. Status Solidi A 14∕2019)

Yinong Yin, Karthikeyan Baskaran, Ashutosh Tiwari

physica status solidi (a) > 216 > 14 > n/a - n/a

Thermal Conductivity Efficiency of a thermoelectric material depends on its electrical and thermal conductivities. For realizing efficient thermoelectric devices it is essential to have materials with high electrical but low thermal conductivity. The cover picture illustrates some strategies used for realizing efficient thermoelectric systems by controlling thermal conduction in the material. More...

article

Nonenzymatic glucose sensing using metal oxides – Comparison of CuO, Co3O4, and NiO

Kun Tian, Karthikeyan Baskaran, Ashutosh Tiwari

Vacuum > 2018 > 155 > C > 696-701

The current status of commercial electrochemical glucose sensors relies on enzymes for quantitative sensing. The sensing performance of enzymatic glucose sensors depends on the stability and catalytic activity of enzymes which degrades over time. Therefore, recent research thrust in this area is on exploring the possibility of developing nonenzymatic glucose sensors using alternative materials that...

article

Isolation and Characterization of Cross-Neutralizing Human Anti-V3 Single-Chain Variable Fragments (scFvs) Against HIV-1 from an Antigen Preselected Phage Library

Rajesh Kumar, Ruchi Kumari, Lubina Khan, Anurag Sankhyan, more

Applied Biochemistry and Biotechnology > 2019 > 187 > 3 > 1011-1027

Recently conducted human phase- I trials showed protective effect of anti-HIV-1 broadly neutralizing antibodies (bnAbs). The V3 region of the HIV-1 envelope is highly conserved as it is the co-receptor binding site, and is highly immunogenic. Recombinant single-chain antibody fragments (scFvs) can serve as potential tools for construction of chimeric/bispecific antibodies that can target different...

article

Serodiagnostic evaluation of recombinant CdtB of S. Typhi as a potential candidate for acute typhoid

Tarang Sharma, Chandresh Sharma, Anurag Sankhyan, Sanjiv Pal Bedi, more

Immunologic Research > 2018 > 66 > 4 > 503-512

Typhoid fever caused by human restricted Salmonella typhi presents a considerable health burden on developing South-Asian nations like India. The suboptimal sensitivity and specificity associated with culture-based isolation of etiological agent and the extensively used surface antigen-based serological assays often lead to misdiagnosis and inappropriate antimicrobial treatment. The increasing reports...

article

Energy-efficient scheduling of flexible flow shop of composite recycling

Ying Liu, Michael Farnsworth, Ashutosh Tiwari

The International Journal of Advanced Manufacturing Technology > 2018 > 97 > 1-4 > 117-127

Composite recycling technologies have been developed to tackle the increasing use of composites in industry and as a result of restrictions placed on landfill disposal. Mechanical, thermal and chemical approaches are the existing main recycling techniques to recover the fibres. Some optimisation work for reducing energy consumed by above processes has also been developed. However, the resource efficiency...

article

Minimising the energy consumption of tool change and tool path of machining by sequencing the features

Luoke Hu, Ying Liu, Chen Peng, Wangchujun Tang, more

Energy > 2018 > 147 > C > 390-402

A considerable amount of energy is consumed by machine tools during the run-time operations such as tool change and tool path. The value of this part of energy is affected by the processing sequence of features of a part (PSFP) because the tool path and tool change plan will vary based on the different PSFP. This paper firstly aims to understand the relationship between the PSFP and the energy consumption...

article

Persistent Scatter Identification and Look-Angle Error Estimation Using Similar Time-Series Interferometric Pixels

Avadh Bihari Narayan, Ashutosh Tiwari, Ramji Dwivedi, Onkar Dikshit

IEEE Geoscience and Remote Sensing Letters > 2018 > 15 > 1 > 147 - 150

Persistent scatterer (PS) pixels contain highly coherent information, which is used in the estimation of geophysical parameters of interest. Conventionally, PS pixels are selected on the basis of the estimated noise present in the spatially uncorrelated phase component along with look-angle error. The phase history of selected PS pixels is corrected for the look-angle error followed by phase unwrapping...

article

Supply Networks as Complex Systems: A Network-Science-Based Characterization

Alexandra Brintrup, Yu Wang, Ashutosh Tiwari

IEEE Systems Journal > 2017 > 11 > 4 > 2170 - 2181

Outsourcing, internationalization, and complexity characterize today's aerospace supply chains, making aircraft manufacturers structurally dependent on each other. Despite several complexity-related supply chain issues reported in the literature, aerospace supply chain structure has not been studied due to a lack of empirical data and suitable analytical toolsets for studying system structure. In...

article

Recent Developments in Perpendicular Magnetic Anisotropy Thin Films for Data Storage Applications

Bharati Tudu, Ashutosh Tiwari

Vacuum > 2017 > 146 > C > 329-341

The incessant demand for higher density, faster access time and lower power consuming memory devices such as random access memories have driven tremendous research and development of materials with out-of-plane magnetization. Magnetic materials with strong out-of-plane magnetization, i.e. perpendicular magnetic anisotropy (PMA), offer superior qualities compared to the in-plane anisotropy materials...

article

Fabrication and characterization of transparent wood for next generation smart building applications

Haritha Sree Yaddanapudi, Nathan Hickerson, Shrikant Saini, Ashutosh Tiwari

Vacuum > 2017 > 146 > C > 649-654

A major fraction of the electricity that is generated in the world is used in the building sector, particularly as a source of light. One way to reduce the consumption of electricity in buildings is by utilizing natural light with the help of environmentally friendly resources such as transparent wood. Removing the lignin from wood followed by impregnating environmentally friendly polymers whose refractive...

article

Growth and characterization of zinc oxide thin films on flexible substrates at low temperature using pulsed laser deposition

Kun Tian, Bharati Tudu, Ashutosh Tiwari

Vacuum > 2017 > 146 > C > 483-491

The emerging technological demand of light weight, transparent and flexible electronic devices has raised the exploration of new semiconductor materials beyond silicon. ZnO has the potential to be integrated into flexible electronics matrix due to its excellent electrical and optical properties. Here, we have fabricated ZnO thin films on flexible polymer substrates, polyimide (Kapton) and polyethylene...

article

Recent advances in oxide thermoelectric materials and modules

Yinong Yin, Bharati Tudu, Ashutosh Tiwari

Vacuum > 2017 > 146 > C > 356-374

Due to the growing concern on depletion of non-renewable resources, waste heat harvesting has become one of the effective approaches for solving the energy shortage issue. Oxide thermoelectric materials have the advantages of low cost, environment-friendly manufacturing and chemical stability at high temperatures. However, compared to traditional thermoelectric materials, they exhibit only modest...

article

Electrocatalytic biofuel cell based on highly efficient metal-polymer nano-architectured bioelectrodes

Prashant Mishra, G.B.V.S. Lakshmi, Sachin Mishra, D.K. Avasthi, more

Nano Energy > 2017 > 39 > C > 601-607

Bioenergy based devices are rapidly gaining significant research interest because of growing quest for future alternative energy resources, but most of the existing technologies suffer from poor electron transfer and slow mass transport, which hinder the fabrication of realistic high-power devices. Using a versatile strategy, here we have demonstrated the fabrication of nanoparticle-polymer framework...

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INFONA - science communication portal

Search results for: Ashutosh Tiwari

Role of prazosin in patients with Guillain–Barré syndrome with sympathetic overactivity: A cohort study

A Quantum Chemical Study on the Enormously Large Nonlinear Optical Response of Doped Endohedral Superalkali Na₂F and Superhalogens MF₄ (M = B, Al) with CNT (C56H16) Cage

Role of T2 relaxometry in localization of mesial temporal sclerosis and the degree of hippocampal atrophy in patients with intractable temporal lobe epilepsy: A cross sectional study

Evaluation of major factors influencing the TBC topcoat formation in axial suspension plasma spraying (SPS)

Circular business models in high value manufacturing: Five industry cases to bridge theory and practice

Compositional Investigations on the Spin Thermoelectric Effect in Ta_100–xCu_x/Yttrium Iron Garnet Thin Films

A Review of Strategies for Developing Promising Thermoelectric Materials by Controlling Thermal Conduction

A Review of Strategies for Developing Promising Thermoelectric Materials by Controlling Thermal Conduction (Phys. Status Solidi A 14∕2019)

Nonenzymatic glucose sensing using metal oxides – Comparison of CuO, Co3O4, and NiO

Isolation and Characterization of Cross-Neutralizing Human Anti-V3 Single-Chain Variable Fragments (scFvs) Against HIV-1 from an Antigen Preselected Phage Library

Serodiagnostic evaluation of recombinant CdtB of S. Typhi as a potential candidate for acute typhoid

Energy-efficient scheduling of flexible flow shop of composite recycling

Minimising the energy consumption of tool change and tool path of machining by sequencing the features

Persistent Scatter Identification and Look-Angle Error Estimation Using Similar Time-Series Interferometric Pixels

Supply Networks as Complex Systems: A Network-Science-Based Characterization

Recent Developments in Perpendicular Magnetic Anisotropy Thin Films for Data Storage Applications

Fabrication and characterization of transparent wood for next generation smart building applications

Growth and characterization of zinc oxide thin films on flexible substrates at low temperature using pulsed laser deposition

Recent advances in oxide thermoelectric materials and modules

Electrocatalytic biofuel cell based on highly efficient metal-polymer nano-architectured bioelectrodes

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