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Experimental Investigation of Thermal Performance of Novel Finned Radiators for Automotive Cooling system

Journal of Thermal science 2024年第5期33卷 1726-1743页

作者： s.ngh hardeep TING David s-K READER Graham EsHTIAGHI Nicky ICHIYANAGI Mitsuhisa sUZUKI Takashi Turbulence&Energy Laboratory University of WindsorWindsor N9B 3P4Canada Chemical and Environmental Engineering School of EngineeringRMIT UniversityMelbourneVictoria 3001Australia Department of Engineering and Applied sciences Sophia UniversityTokyo 102-8554Japan

This research investigates innovative fin-type radiators for automobile engine cooling ***-channel and helical radiators,along with straight type,were analyzed for heat transfer characteristics under various *** uniqueness of this study is evident in the design of microchannel and helical *** helical radiators,the inner rod features 4/8 helical-shaped water galleries,while the outer tube frame with embedded fins remains *** contrast,the microchannel radiators have compact trapezoidal-shaped water galleries with separate fin ***,the novelty of the research is enhanced by the utilization of 3D printing technology in the manufacturing *** constant fin height analysis at varied water and air flow rate,Microchannel Water Air Radiator with fin height 10.5 mm(MCWAR10.5)depicted a higher heat transfer rate amongst the *** comparison to straight Water Air Radiator with fin height 9.5 mm(sWAR9.5),the heat transfer rate is 30.3%and 1.3 times ***,in constant fin surface area analysis,microchannel radiator(MCWAR3.2)illustrates lower heat dissipation than Helical radiator(HWAR138)but higher than HWAR134 and straight radiator(sWAR6).The examination of pumping loss indicated that the Micro-channel radiator outperformed helical radiators due to its lower pressure *** average pressure loss for Micro-channel radiators was 0.74 kPa,making it 1.2 times higher than that of a straight radiator(0.62 kPa),indicating a better trade-off.

关键词： heat exchangers multi-channel helical heat exchanger heat transfer 3D printing

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Recent updates on nano-phyto-formulations based therapeutic intervention for cancer treatment

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Oncology Research 2024年第1期32卷 19-47页

作者： ABHIsHEK WAHI MAMTA BIsHNOI NEHA RAINA MEGHNA AMRITA s.ngh PIYUsH VERMA PIYUsH KUMAR GUPTA GINPREET KAUR hardeep s.ngh TULI MADHU GUPTA Department of Pharmaceutics School of Pharmaceutical SciencesDelhi Pharmaceutical Sciences and Research University(DPSRU)Pushp ViharNew Delhi110017India Department of Pharmaceutical sciences Gurugram UniversityHaryana122003India Department of Life sciences Sharda School of Basic Sciences and ResearchSharda UniversityGreater NoidaUttar Pradesh201310India Department of Biotechnology Graphic Era(Deemed to be University)DehradunUttarakhand248002India Department of Pharmacology Shobhaben Pratapbhai Patel School of Pharmacy&Technology ManagementSVKM’s NMIMSVile Parle(West)Mumbai400056India Department of Bio-sciences and Technology Maharishi Markandeshwar Engineering CollegeMaharishi Markandeshwar(Deemed to be University)MullanaAmbala133207India

Cancer is a leading cause of death globally,with limited treatment options and several *** agents often result in toxicity which long-term conventional *** are natural constituents that are more effective in treating various diseases with less toxicity than the chemotherapeutic agents providing alternative therapeutic approaches to minimize the *** phytoconstituents act in several ways and deliver optimum effectiveness against ***,the effectiveness of phyto-formulations in the management of cancers may be constrained due to challenges related to inadequate solubility,bioavailability,and *** presents a promising avenue for transforming current cancer treatment methods through the incorporation of phytochemicals into nanosystems,which possess a range of advantageous characteristics such as biocompatibility,targeted and sustained release capabilities,and enhanced protective *** holds significant potential for future advancements in cancer ***,this review aims to provide intensive literature on diverse nanocarriers,highlighting their applications as cargos for phytocompounds in ***,it offers an overview of the current advancements in the respective field,emphasizing the characteristics that contribute to favourable outcomes in both in vitro and in vivo ***,clinical development and regulatory concerns are also discussed to check on the transformation of the concept as a promising strategy for combination therapy of phytochemicals and chemotherapeutics that could lead to cancer management in the future.

关键词： Phyto-formulations Cancer Nanocarriers Nanotechnology Clinical development

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Disseminated cysticercosis presenting with bilateral proptosis: A case report

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Asian Pacific Journal of Tropical Medicine 2019年第7期12卷 337-338页

作者： Ravindra Kumar Garg Neeraj Kumar Imran Rizvi hardeep s.ngh malhotra Department of Neurology King George’s Medical University Uttar Pradesh

Rationale: Disseminated cysticercosis is characterized by presence of cysts in multiple body organs, like brain, skin, eyes, muscles and rarely heart and *** concerns: A 22-year-old man presented with bilateral proptosis of 1-year duration. He also had two episodes of cysticercosis encephalitis. In the second episode of encephalopathy, the patient ***: Disseminated ***: Corticosteroids(Initially intravenous dexamethasone 0.4 mg/kg/day for 2 weeks, followed by oral prednisolone 1.0 mg/kg/day).Outcomes: The patient died of cysticercosis encephalitis approximately 2 months ***: Disseminated cysticercosis in our case presented only with proptosis as he had very heavy infestation of the brain and eyes. Heavy larval infestation in a patient with disseminated cysticercosis can be life-threatening.

关键词： Neurocysticercosis Cysticercosis encephalitis Proptosis

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Characterization of value-added chemicals derived from the thermal hydrolysis and wet oxidation of sewage sludge

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Frontiers of Environmental science & Engineering 2021年第1期15卷 185-198页

作者： Milan malhotra Anurag Garg Environmental science and Engineering Department Indian Institute of Technology BombayPowai Mumbai 400076India

We evaluated the effect of hydrothermal pretreatments,i.e.,thermal hydrolysis(TH)and wet oxidation(WO)on sewage sludge to promote resource *** hydrothermal processes were performed under mild temperature conditions(140°C–180°C)in a high pressure *** reaction in acidic environment(pH=3.3)suppressed the formation of the color imparting undesirable Maillard’s *** oxidative conditions resulted in higher volatile suspended solids(Vss)reduction(~90%)and chemical oxygen demand(COD)removal(~55%)whereas TH caused Vss and COD removals of~65%and~27%,respectively at a temperature of 180°*** TH,the concentrations of carbohydrates and proteins in treated sludge were 400–1000 mg/L and 1500–2500 mg/L,***,WO resulted in solids solubilization followed by oxidative degradation of organics into smaller molecular weight carboxylic acids such as acetic acid(~400–500 mg/L).Based on sludge transformation products generated during the hydrothermal pretreatments,simplified reaction pathways are ***,the application of macromolecules(such as proteins),VFAs and nutrients present in the treated sludge are also *** future study should focus on the development of economic recovery methods for various value-added compounds.

关键词： Hydrothermal pretreatment Reaction kinetics Reaction pathway sewage sludge Thermal hydrolysis Wet oxidation

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Intelligent Multilevel Node Authentication in Mobile Computing Using Clone Node

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Computers, Materials & Continua 2022年第3期70卷 5269-5284页

作者： Neha malhotra Manju Bala I.K.Gujral Punjab Technical University Kapurthala144603India Lovely Professional University Phagwara144411India Khalsa College of Engineering and Technology Amritsar143001India

Nodes in a mobile computing system are vulnerable to clone attacks due to their *** such attacks,an adversary accesses a few network nodes,generates replication,then inserts this replication into the network,potentially resulting in numerous internal network *** existing techniques use a central base station,which introduces several difficulties into the system due to the network’s reliance on a single point,while other ways generate more overhead while jeopardising network *** this research,an intelligent double hashing-based clone node identification scheme was used,which reduces communication and memory costs while performing the clone detection *** approach works in two stages:in the first,the network is deployed using an intelligent double hashing procedure to avoid any network collisions and then in the second,the clone node identification procedure searches for any clone node in the *** first phase verifies the node prior to network deployment,and then,whenever a node wants to interact,it executes the second level of ***-to-end delay,which is bound to increase owing to the injection of clone nodes,and packet loss,which is reduced by the double hashing technique,were used to evaluate the performance of the aforementioned approach.

关键词： Node authentication clone node mobile computing double hashing fault tolerance

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sYNTHEsIs,CHARACTERIZATION OF DIAMIDE-DIIMIDE-DIAMINEs BAsED ON L-CYsTEINE AMINO ACID AND THEIR EFFECT ON THE THERMAL PROPERTIEs OF DIGLYCIDYL ETHER OF BIsPHENOL-A(DGEBA)

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Chinese Journal of Polymer science 2009年第5期27卷 647-658页

作者： Darshan Priti malhotra A.K.Narula school of Basic and Applied sciences GGS Indraprastha University Chemistry Dept. Daulat Ram CollegeUniversity of Delhi school of Basic and Applied sciences GGS Indraprastha UniversityKashmere Gate

The curing behavior of diglycidyl ether of bisphenol-A(DGEBA) with aromatic diamide-diimide-diamines having aryl ether,sulfone and methylene linkages was studied by differential scanning calorimetry(DsC).Nine diamide-diimide-diamines of varying structure were synthesized by reacting 1 mole of dianhydride with 2 moles of L-cysteine(s) in a mixture of acetic acid and pyridine(3:2 V/V) followed by activation with thionyl chloride(sOCl_2) and then condensation with excess of *** characterization...

关键词： Curing Diamide-diimide-diamines DGEBA Thermal stability Char yield.

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A comprehensive review from hyperlink to intelligent technologies based personalized search systems

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Journal of Management Analytics 2019年第4期6卷 365-389页

作者： Dheeraj malhotra O.P.Rishi Department of Computer science and Informatics University of KotaRajasthanIndia

In the present era of big data,web page searching and ranking in an efficient manner on the World Wide Web to satisfy the specific search needs of the modern user is undoubtedly a major challenge for search *** though a large number of web search techniques have been developed,some problems still exist while searching with generic search engines as none of the search engines can index the entire *** issue is not just the volume but also the relevance concerning the user’s ***,if the search query is partially incomplete or is ambiguous,then most of the modern search engines tend to return the result by interpreting all possible meanings of the *** search quality,more than half of the retrieved web pages have been reported to be *** web search personalization is required to retrieve search results while incorporating the user’s *** the proposed research work we have highlighted the strengths and weakness of various studies as proposed in the literature for web search personalization by carrying out a detailed comparison among *** in-depth comparative study with baselines leads to the recommendation of Intelligent Meta search system(IMss)and Advanced Cluster Vector Page Ranking(ACVPR)algorithm as one of the best approaches as proposed in the literature for web search ***,the detailed discussion about the comparative analysis of all categories gives new opportunities to think in different research areas.

关键词： web search personalization meta search tool machine learning big data analytics collaborative filtering logistic regression

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Big data analytics for retail industry using MapReduce-Apriori framework

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Journal of Management Analytics 2020年第3期7卷 424-442页

作者： Neha Verma Dheeraj malhotra tinder s.ngh Vivekananda Institute of Professional studies GGSIPUDelhiIndia sant Baba Bhaag s.ngh niversity JalandharIndia

Presently,retailing has changed its face from unordered stacked traditional stores to beautifully decorated and appropriately managed merchandise stores or shopping malls with excellent ambiance and ***,these stores try to accommodate all needed items for daily use or rarely required items under the same ***,the primary challenge for today’s retailer is that the modern customer is quality and brands conscious as well as compare for services provided to them by different outlets at the comfort of home with a single ***,customers prefer to purchase from E-Commerce websites instead of physically visiting a retail store,which leads to the downfall in the sales of retailers which become a serious threat to ***,retailers are required to work sincerely towards their customer expectations by providing all their needed goods under the same ***,the objective of this paper is to assist retail business owners to recognize the purchasing needs of their customers and hence to entice customers to physical retail stores away from competitor E-Commerce *** paper employs a systematic research methodology based on association rule mining deployed over Map-Reduce based Apriori association mining and Hadoop based intelligent cloud architecture to determine useful buying patterns from purchase history of previous customers,in order to assist retail business *** finding acknowledges that the traditional mining algorithms have not progressed to support big data analysis as required by current retail businesses *** job of finding unknown association rules from big data requires a lot of resources such as memory and processing ***,traditional mining systems are inadequate to provide support for partial failure support,extensibility,scalability ***,this study aims to implement and develop MapReduce based Apriori(MR-Apriori)algorithm in the form of Intelligent Retail Mining Tool *** Tool

关键词： Big data retail analytics MR-Apriori algorithm map-reduce market basket analysis association mining IRM tool

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Risk factors for 90-day readmission in veterans with inflammatory bowel disease——Does post-discharge follow-up matter?

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Military Medical Research 2018年第3期5卷 216-221页

作者： Ashish malhotra Parkpoom Phatharacharukul Charat Thongprayoon Center of Innovation Minneapolis VA Health Care System Division of Gastroenterology Department of Medicine Minneapolis VA Medical Center Department of Medicine University of Minnesota School of Medicine Department of Internal Medicine Bassett Medical Center

Background: Repeat hospitalizations in veterans with inflammatory bowel disease(IBD) are under studied. The early readmission rate and potentially modifiable risk-factors for 90-day readmission in veterans with IBD were studied to avert avoidable ***: A retrospective cohort study was conducted using the data from veterans who were admitted to the Minneapolis VA Medical Center(MVMC) between January 1, 2007, and December 31, 2013, for an IBD-related problem. All-cause readmissions within 30 and 90 days were recorded to calculate early readmission rates. The multivariate logistic regression was used to identify the potential risk factors for 90-day ***: There were 130 unique patients(56.9% with Crohn's disease and 43.1% with ulcerative colitis) with 202 IBD-related index admissions. The mean age at the time of index admission was 59.8±15.2 years. The median time to re-hospitalization was 26 days(IQR 10-49), with 30-and 90-day readmission rates of 17.3%(35/202) and 29.2%(59/202), respectively. Reasons for all-cause readmission were IBD-related(71.2%), scheduled surgery(3.4%) and non-gastrointestinal causes(25.4%). The following reasons were independently associated with 90-day readmission: Crohn's disease(OR 3.90; 95% CI 1.82-8.90), use of antidepressants(OR 2.19; 95% CI 1.12-4.32), and lack of follow-up within 90 days with a primary care physician(PCP)(OR 2.63; 95% CI 1.32-5.26) or a gastroenterologist(GI)(OR 2.44; 95% CI 1.20-5.00). 51.0% and 49.0% of patients had documentation of a recommended outpatient follow-up with PCP and/or GI, ***: Early readmission in IBD is common. Independent risk factors for 90-day readmission included Crohn's disease, use of antidepressants and lack of follow-up visit with PCP or GI. Further research is required to determine if the appropriate timing of post-discharge follow-up can reduce IBD readmissions.

关键词： Inflammatory bowel disease Readmission rates Veterans affairs

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Revisiting the upper eyelid blepharoplasty advancement flap:adaptation for the repair of full-thickness upper eyelid defects—a case series

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Annals of Eye science 2022年第4期7卷 77-83页

作者： Yinon shapira Katja Ullrich Raman malhotra Andre s.Litwin Corneoplastic Unit Queen Victoria Hospital NHS TrustEast GrinsteadWest SussexUK

A blepharoplasty flap has been previously reported as a useful reconstruction approach for anterior lamellar defects lying between the lash line and the eyelid *** herein describe a variation of the blepharoplasty flap and suggest its use as an adjunct in the reconstruction of full-thickness lateral upper eyelid *** description and retrospective interventional case *** reconstruction technique was used by an experienced oculoplastics surgeon(AsL)in 3 adults with malignant lesions involving the lateral upper eyelid margin,resulting in a post-excision 50%full-thickness defect between November 2017 and June *** posterior lamella was reconstructed using an ipsilateral free tarsal graft and an inferiorly hinged transposition periosteal *** anterior lamella reconstruction was then performed using a local advancement flap utilizing the principles of upper blepharoplasty and Burow’s *** full eyelid excursion and full gentle closure were evident at 1–2 weeks follow-up in all three *** case later developed 1–2 mm of gentle closure lagophthalmos and was managed successfully with topical *** all patients,the final eyelid contour and symmetry were adequate,with only minimal scarring,evident already 3 to 4 months *** were no major complications or need for *** technique described herein highlights the utility of the blepharoplasty flap for lateral,full-thickness upper eyelid *** logical variation enables the reconstruction of significant defects using only local tissue,obeying the“like with like”principle,and helps avoid the need for a bridging *** provide preliminary evidence of the potential of a good cosmetic outcome of upper lid appearance and contour,together with a fast recovery of appropriate eyelid function.

关键词： Upper eyelid defect reconstruction blepharoplasty flap tarsal graft periosteal flap case series

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