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science Bulletin 2021年第1期66卷 52-61,M0004页

作者： Kailu Guo Yantao Wang sizhuo Yang Junfeng Huang Zehua Zou Hairui Pan pravin s.shinde shanlin Pan Jier Huang Cailing Xu state Key Laboratory of Applied Organic Chemistry Laboratory of Special Function Materials and Structure Design of the Ministry of EducationCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China Department of Chemistry Marquette UniversityMilwaukeeWI 53201USA Department of Chemistry and Biochemistry The University of AlabamaTuscaloosaAL 35487USA.

The intrinsic activity and durability of oxygen evolution reaction(OER)electrocatalysts are mainly dominated by the surface and interface properties of active ***,a core-shell heterogeneous structure(NF/Nise@Fe_(2)O_(3))is fabricated via two-step hydrothermal method,which exhibits a low overpotential of 220 mV(or 282 mV)at 10 mA/cm^(2)(or 200 mA/cm^(2)),a small Tafel slope of 36.9 mV/dec,and long-term stability(-230 h)in 1 mol/L KOH for OER.X-ray photoelectron spectroscopy and X-ray absorption spectroscopy reveal the(oxy)hydroxide-rich surface and strong coupling interface between Nise and Fe_(2)O_(3)via the Fe-se *** functional theory calculation suggests that the d-band center and electronic state of Nise@Fe_(2)O_(3)heterojunction are well optimized due to the formation of Fe-se bond,which is favorable for the enhanced OER activity because of the easy adsorption of oxygen-containing intermediates and desorption of O^(2)in the OER *** addition,the unique core-shell structure and robust bonding interface are responsible for the good stability for *** work provides fundamental insights on the bonding effect that determine the performance of OER electrocatalyst.

关键词： Bonding interface Electrocatalyst Core-shell Nanostructure Oxygen evolution

A Framework for Cloud Validation in Pharma

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Journal of Computer and Communications 2024年第9期12卷 103-118页

作者： pravin Ullagaddi Plaster school of Business University of the Cumberlands Williamsburg KY USA Pacific Biolabs Hercules CA USA

The pharmaceutical industry’s increasing adoption of cloud-based technologies has introduced new challenges in computerized systems validation (CsV). This paper explores the evolving landscape of cloud validation in pharmaceutical manufacturing, focusing on ensuring data integrity and regulatory compliance in the digital era. We examine the unique characteristics of cloud-based systems and their implications for traditional validation approaches. A comprehensive review of current regulatory frameworks, including FDA and EMA guidelines, provides context for discussing cloud-specific validation challenges. The paper introduces a risk-based approach to cloud CsV, detailing methodologies for assessing and mitigating risks associated with cloud adoption in pharmaceutical environments. Key considerations for maintaining data integrity in cloud systems are analyzed, particularly when applying ALCOA+ principles in distributed computing environments. The article presents strategies for adapting traditional Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) models to cloud-based systems, highlighting the importance of continuous validation in dynamic cloud environments. The paper also explores emerging trends, including integrating artificial intelligence and edge computing in pharmaceutical manufacturing and their implications for future validation strategies. This research contributes to the evolving body of knowledge on cloud validation in pharmaceuticals by proposing a framework that balances regulatory compliance with the agility offered by cloud technologies. The findings suggest that while cloud adoption presents unique challenges, a well-structured, risk-based approach to validation can ensure the integrity and compliance of cloud-based systems in pharmaceutical manufacturing.

关键词： Computerized systems Validation Risk-Based Approach Data Integrity Pharmaceutical Manufacturing Cloud Validation

Enhanced solar Water Desalination by CuCo_(2)s_(4)-decorated Carbon Foam Derived from Waste Plastics

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Chemical Research in Chinese Universities 2024年第3期40卷 548-555页

作者： Muzammil HUssAIN Tofik Ahmed sHIFA Pratik V.shinde Pankaj KUMAR stefano CENTENARO silvia GROss Elisa MORETTI Alberto VOMIERO Department of Molecular sciences and Nanosystems Ca'Foscari University of VeniceVia Torino 15530172 VeniceItaly Department of Industrial Engineering University of PadovaVia Venezia 135131 PadovaItaly Department of Chemical sciences University of PadovaVia Francesco Marzolo135131 PadovaItaly Division of Materials science Department of Engineering Sciences and MathematicsLulea University of Technology97187 LuleaSweden Center for Cultural Heritage Technologies(CCHT) Istituto Italiano di Tecnologia(IT)Via Torino 15530170 Venezia-MestreItaly

Interfacial solar desalination is an emerging technology for freshwater production,but the finding of novel solar evaporators is still *** the present research,graphitic carbon foam(CF)was synthesized from the upcycling of waste plastic polyethylene terephthalate(PET)waste bottles functionalized with carrollite CuCo_(2)s_(4) as a photothermal *** characterization[X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),and scanning electron microscopy-energy dispersive spectroscopy(sEM-EDs)]confirms the functionalization of carrollite CuCo_(2)s_(4) on graphitic carbon *** UV-Vis spectroscopy analysis showed an enhanced optical absorption in the UV-Vis-near IR region(>96%)for functionalized CuCo_(2)s_(4)-CF foam compared to carbon foam(67%).The interfacial solar desalination experiment presented a significantly enhanced evaporation rate of 2.4 kg·m^(−2)·h^(−1) for CuCo_(2)s_(4)-CF compared to that of CF(1.60 kg·m^(−2)·h^(−1))and that of CuCo_(2)s_(4)(1.60 kg·m^(−2)·h^(−1)).The obtained results proved that the newly synthesized CuCo_(2)s_(4)-CF from the upcycled plastic into new material for the photothermal desalination process can enhance the practice of a circular economy to produce fresh water.

关键词： Photothermal desalination Cobalt Copper Chalcogenide Waste upcycling Circular economy

Effect of Different shapes of Conformal Cooling Channel on the Parameters of Injection Molding

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Computers, Materials & Continua 2018年第3期54卷 287-306页

作者： Mahesh s.shinde Kishor M.Ashtankar Department of Mechanical Engineering Visvesvaraya National Institute of TechnologyNagpur-440010India

Cooling system improvement is important in injection molding to get betterquality and productivity. The aim of this paper was to compare the different shapes of theconformal cooling channels (CCC) with constant surface area and CCC with constantvolume in injection molding using Mold-flow Insight 2016 software. Also the CCC resultswere compared with conventional cooling channels. Four different shapes of the CCC suchas circular, elliptical, rectangular and semi-circular were proposed. The locations of thecooling channels were also kept constant. The results in terms of cooling time, cycle timereduction and improvement in quality of the product shows that no significant effect ofCCC’s shapes when surface area of CCC kept constant. On the other hand, the rectangularCCC shows better result as compared to other shapes of CCC when volume of CCC werekept constant.

关键词： Injection mold conformal cooling channels cooling simulation rapid tooling

Cycle Time Reduction in Injection Molding by Using Milled Groove Conformal Cooling

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Computers, Materials & Continua 2017年第3期53卷 207-217页

作者： Mahesh s.shinde Kishor M.Ashtankar Department of Mechanical Engineering Visvesvaraya National Institute of TechnologyNagpur-440010India

This paper presents simulation study on Milled Grooved conformal cooling channels(MGCCC)in injection *** has a more effective cooling surface area which helps to provide efficient cooling as compared to conventional cooling.A case study of Encloser part is investigated for cycle time reduction and quality *** performance designs of straight drilled are compared with MGCCC by using Autodesk Moldflow Insight(AMI)*** results show total 32.1% reduction of cooling time and 9.86% reduction of warpage in case of MGCCC as compared to conventional cooling.

关键词： Injection mold conformal cooling channels cooling simulation rapid tooling

Facile and Rapid Access to Poly Functionalized Pyridine Derivatives

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Chinese Journal of Chemistry 2011年第5期29卷 1049-1054页

作者： shinde pravin V. shingate Bapurao B. shingare Murlidhar s. Department of Chemistry Dr. Babasaheb Ambedkar Marathwada University Aurangabad-431004 India

An efficient and greener protocol for the synthesis of poly functionalized pyridines using tetra-n-butyl ammonium fluoride （TBAF） in water is established. Remarkable advantages of the present synthetic strategy over the others are shorter reaction times, higher isolated yields, reuse of catalytic system, simple work-up procedure and more especially its applicability to heteryl and aliphatic aldehydes.

关键词： green chemistry pyridines tetra-n-butyl ammonium fluoride (TBAF) water chemistry

supramolecular Polymer Intertwined Free-standing Bifunctional Membrane Catalysts for All-Temperature Flexible Zn-Air Batteries

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Nano-Micro Letters 2022年第11期14卷 341-360页

作者： Nayantara K.Wagh sambhaji s.shinde Chi Ho Lee sung-Hae Kim Dong-Hyung Kim Han-Don Um sang Uck Lee Jung-Ho Lee Department of Materials science and Chemical Engineering Hanyang UniversityAnsanRepublic of Korea Department of Applied Chemistry Center for Bionano Intelligence Education and ResearchHanyang UniversityAnsanRepublic of Korea Department of Chemical Engineering Kangwon National UniversityChuncheonGangwon 24341Republic of Korea

Rational construction of flexible free-standing electrocatalysts featuring long-lasting durability,high efficiency,and wide temperature tolerance under harsh practical operations are fundamentally significant for commercial zinc-air ***,3D flexible free-standing bifunctional membrane electrocatalysts composed of covalently cross-linked supramolecular polymer networks with nitrogen-deficient carbon nitride nanotubes are fabricated(referred to as PEMAC@NDCN)by a facile self-templated ***@NDCN demonstrates the lowest reversible oxygen bifunctional activity of 0.61 V with exceptional long-lasting durability,which outperforms those of commercial Pt/C and RuO_(2).Theoretical calculations and control experi-ments reveal the boosted electron transfer,electrolyte mass/ion transports,and abundant active surface site ***,the constructed alkaline Zn-air battery with PEMAC@NDCN air-cathode reveals superb power density,capacity,and discharge-charge cycling stability(over 2160 cycles)compared to the reference Pt/C+RuO_(2).solid-state Zn-air batteries enable a high power density of 211 mW cm^(−2),energy density of 1056 Wh kg^(−1),stable charge-discharge cycling of 2580 cycles for 50 mA cm^(−2),and wide temperature tolerance from−40 to 70℃with retention of 86%capacity compared to room-temperature counterparts,illustrating prospects over harsh operations.

关键词： Flexible free-standing membrane electrocatalysts supramolecular polymer Alkaline and flexible solid-state Zn-air batteries All-temperature operations High capacity and energy density

Optimization of microwave-assisted extraction for picroside I and picroside II from Picrorrhiza kurroa using Box-Behnken experimental design

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Frontiers of Chemical science and Engineering 2014年第4期8卷 445-453页

作者： pravin WAKTE Ajit PATIL Bhusari sACHIN Munnaza QUAZI shraddha JABDE Devanand shinde Pharmaceutical Technology Division Department of Chemical Technology Dr. Babasaheb Ambedkar Marathwada University Aurangabad 431004 India

The response surface methodology was employed to study the optimization of microwave-assisted extraction of picroside I and picroside II from Picrorrhiza kurroa Royle rhizomes. The effects of solid to solvent ratio, and extraction temperature, time and solvent on the yields ofpicroside I and picroside II have been investigated using Box-Behnken experimental design. The experimen- tal data were fitted to second-order polynomial equations using multiple regression analysis and analyzed using the appropriate statistical method. By solving the regression equation and analyzing 3-D plots, the optimum extraction conditions were found to be： solid to solvent ratio, 10 ： 90 （w/v）; temperature, 60 ~C; and extraction time, 60 s. Under the optimal conditions, the yields of picroside I and picroside II are 41.23 and 6.12 *** feed respectively, which are in good agreement with the predicted values. The ratio of solid to solvent significantly affects the yields of picroside I and picroside II. Application of microwave- assisted extraction of picroside I and picroside II from P kurroa would dramatically reduce extraction time and solvent consumption.

关键词： microwave-assisted extraction picroside I,picroside II Picrorrhiza kurroa Box-Behnken design

Polyethylene glycol(PEG) mediated expeditious synthetic route to 1,3-oxazine derivatives

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Chinese Chemical Letters 2011年第8期22卷 915-918页

作者： pravin V.shinde Amol H.Kategaonkar Bapurao B.shingate Murlidhar s.shingare Department of Chemistry Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad 431004MaharashtraIndia

Various 1,3-oxazine derivatives were synthesized in high yields,within shorter reaction times using PEG-400 as a safer medium/ *** synthetic route is exceedingly easy and avoids the use of acid/base catalysts.

关键词： Ecofriendly synthetic protocol Green chemistry 1 3-Oxazines Polyethylene glycol(PEG)

Photocatalytic degradation of RhB and TNT and photocatalytic water splitting with CZTs microparticles

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Journal of semiconductors 2015年第7期36卷 29-33页

作者： s.s.shinde Hanyang University

Cu2Znsns4 （CZTs） is a main candidate material for solar energy conversion through both photovoltaics and photocatalysis based on environmentally friendly elements and with a direct band gap of 1.5 eV. We report the synthesis of quasi CUEZnsns4 microparticles with unprecedented narrow size distributions. The structural, morphological and core level analysis has been carried out by XRD, sEM and XPs techniques. These microparticles have shown excellent photocatalytic activity toward degradation ofRhodamine B dye （RhB） and TNT under visible light. The extent of mineralization has been analyzed by COD and TOC values. Photocatalytic water splitting for HE generation has also been reported.

关键词： Rhodamine B TNT CZTs photocatalysis H2 production