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Nano Materials Science 2021年第1期3卷 25-46页

作者： Prasenjit Kar Komal Shukla Pratyush Jain Govindasamy Sathiyan Raju kumar gupta Department of Chemical Engineering Indian Institute of Technology KanpurKanpur208016Uttar PradeshIndia Center for Environmental Science and Engineering Indian Institute of Technology KanpurKanpur208016Uttar PradeshIndia

The presence of emerging pharmaceutical pollutants at low concentration levels in the surface and ground water has caused a potential threat to the marine and human *** emerging pharmaceutical pollutants generally include analgesics and anti-inflammatories,lipid-lowering drugs,antiepileptics,antibiotics,and β-blockers *** recent years,various processes have been developed and advanced oxidation process is the most effective for decontamination of emerging pharmaceutical pollutants till *** based photocatalysis technology has recently received a great interest for the removal of new emerging pharmaceutical *** review article highlights the removal of emerging pharmaceutical pollutants especially through photocatalysis as well as recent progress using different *** focus has been given over fundamental key dynamics processes of nanomaterials and degradation pathways of emerging pharmaceutical ***,this review concludes with the perspectives and outlook over future developments in photocatalysis technology for the degradation of emerging pharmaceutical pollutants leading to a solution for realworld in near future.

关键词： Emerging pharmaceutical pollutants Photocatalysis Nanomaterials Degradation mechanism

A robust test of uncertain linear systems

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控制理论与应用（英文版） 2009年第3期7卷 277-280页

作者： yogesh V. HOTE D. Roy CHOUDHURY J. R. P. gupta Department of Instrumentation and Control Engineering Delhi University Department of Computer Engineering I. P. University

In this paper, it is shown that for low-order uncertain systems, there is no need to calculate all the minimum and maximum values of the coefficients for a perturbed system which is expressed in terms of polynomials and hence no need to formulate and test all the four Kharitonov＇s polynomials. Furthermore, for higher-order systems such as n ≥ 5, the usual four Kharitonov＇s polynomials need not be tested initially for sufficient condition of perturbed systems; rather, the necessary condition can be checked before going for sufficient condition. In order to show the effectiveness of the proposed method, numerical examples are shown and computational efficiency is highlighted.

关键词： Kharitonov's theorem Robust stability Routh criterion

Design of an Efficient Cooperative Spectrum for Intra-Hospital Cognitive Radio Network

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Computers, Materials & Continua 2021年第10期69卷 35-49页

作者： Abhinav Adarsh Basant kumar Manoj gupta Arun kumar Aman Singh Mehedi Masud Fahad A.Alraddady Department of ECE MNNIT AllahabadPrayagraj211004India Department of ECE JECRC UniversityJaipur303905India Computer Science and Engineering Lovely Professional UniversityPunjab144411India Department of Computer Science College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

This paper presents a new low delay centralized cooperative spectrum sensing method based on dynamic voting rule using multiple threshold level,for indoor hospital environment,where fading and direct path loss both are together responsible for variation in signal *** the proposed algorithm,weights of Cognitive Radios(CRs)in terms of assigned votecount are estimated based on the sensed energy values with respect to multiple fixed threshold levels,so that the direct path loss can be dealt without further increasing the error,which occurs due to *** indoor hospital like environment,Rician fading model is more ***,formulation,evaluation and analysis of various sensing performance parameters have been carried out considering Rician fading *** analysis and tradeoff among three optimum parameters-energy threshold,total number of CRs participating in sensing and total error rate,are presented with respect to signal to noise ratio(SNR).Finally,the Monte Carlo simulation is designed and implemented considering the two conditions-only fading environment and fading along with direct path loss *** can be observed that in both cases,the proposed spectrum sensing rule outperforms the other contemporary rules.

关键词： Cognitive radio direct path loss spectrum sensing health care

An Improved Methodology to Overcome Key Issues in Human Fecal Metagenomic DNA Extraction

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Genomics, Proteomics & Bioinformatics 2016年第6期14卷 371-378页

作者： Jitendra kumar Manoj kumar Shashank gupta Vasim Ahmed Manu Bhambi Rajesh Pandey Nat Singh Chauhan Department of Biochemistry Maharshi Dayanand UniversityRohtak 124001India Ayurgenomics Unit Translational Research and Innovative Science Through AyurgeomicsCouncil of Scientific and Industrial ResearchInstitute of Genomics and Integrative BiologyNew Delhi 110020India

Microbes are ubiquitously distributed in nature, and recent culture-independent studies have highlighted the significance of gut microbiota in human health and disease. Fecal DNA is the primary source for the majority of human gut microbiome studies. However, further improvement is needed to obtain fecal metagenomic DNA with sufficient amount and good quality but low host genomic DNA contamination. In the current study, we demonstrate a quick, robust, unbiased, and cost-effective method for the isolation of high molecular weight （〉 23 kb） metagenomic DNA （260/280 ratio 〉 1.8） with a good yield （55.8 ± 3.8 ng/mg of feces）. We also confirm that there is very low human genomic DNA contamination （eubacterial： human genomic DNA marker genes = 227.9：1） in the human feces. The newly-developed method robustly performs for fresh as well as stored fecal samples as demonstrated by 16S rRNA gene sequencing using 454 FLX＋. Moreover, 16S rRNA gene analysis indicated that compared to other DNA extraction methods tested, the fecal metagenomic DNA isolated with current methodology retains species richness and does not show microbial diversity biases, which is further confirmed by qPCR with a known quantity of spike-in genomes. Overall, our data highlight a protocol with a balance between quality, amount, user-friendliness, and cost effectiveness for its suitability toward usage for cultureindependent analysis of the human gut microbiome, which provides a robust solution to overcome key issues associated with fecal metagenomic DNA isolation in human gut microbiome studies.

关键词： Metagenomic DNAextraction Gut microbiome Human feces 16S rRNA

A simple approach for stability margin of discrete systems

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控制理论与应用（英文版） 2011年第4期9卷 567-570页

作者： yogesh V. HOTE J. R. P. gupta D. Roy CHOUDHURY Department of Electrical Engineering Indian Institute of Technology (IIT) Department of Instrumentation and Control Engineering Delhi University Department of Information Technology (I.T.) M.A.I.T.

In this paper, a technique is presented to determine the stability margin of the discrete systems using recursive algorithm for power of companion matrix and Gerschgorin Theorem and hence sufficient condition of stability is obtained. The method is illustrated with an example and it is compared with other methods proposed in the literature. The results have applications in the filter design.

关键词： Gerschgorin theorem Power of companion matrix Discrete systems Stability margin

Cosmetic evaluation of surgical scars after external dacryocystorhinostomy

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International Journal of Ophthalmology(English edition) 2016年第12期9卷 1745-1750页

作者： Syed Ali Raza Rtzvi Mohammad Saquib Rakesh Maheshwari yogesh gupta Zafr Igbal Purleet Maheshwari Institute of Ophthalmology Jawaharlal Nehru Medical College AMU Aligarh.UP 202002 India Department of Oto-Rhino-Laryngology Jawaharlal Nehru Medical College AMU Aligarh.UP 202002 India Department of Oto-Rhino-Laryngology Era's Lucknow Medical College and Hospital Lucknow.UP 226003 India

AIM： To evaluate the surgical scars of external dacryocystorhinostomy （DCR） cosmetically. METHODS： Totally 50 consecutive cases of primary acquired nasolacrimal duct obstruction （PANDO） were included in the study. Surgical scars were assessed by the patients and two independent observers at 2, 6 and 12wk postoperatively on the basis of visibility of the scars and still photographs respectively and were graded from 0-3. Kappa test was utilised to check the agreement of scar grading between the two observers. Wilcoxan signed ranks test was used to analyse the improvement of scar ***： Thirty-four （68%） patients graded their incision site as very visible （grade 3） at 2wk. At 6 and 12wk, incision site was observed as grade 3 by 7 （14%） and 1 （2%） patients respectively. Photographic evaluation of patients by 2 observers showed an average score of 2.75, 1.94 and 0.94 at 2, 6 and 12wk respectively. Change in scar grading from grade 3 to grade 0 in consecutive follow-up （2, 6 and 12wk） was found to be highly significant both for the patient as well for the observers （P〈0.0001）.CONCLUSION： The external DCR is a highly effective and safe procedure and in view of low percentage of cases who complained of marked scarring in the present study, thus scarring should not be the main ground for deciding the approach to DCR surgery, even in young cosmetically conscious patients.

关键词： cosmetic surgical scar external dacryocystorhinostomy primary acquired nasolacrimal duct obstruction

Comment on: Observation of peripheral refraction in myopic anisometropia in young adults

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International Journal of Ophthalmology(English edition) 2024年第7期17卷 1385-1386页

作者： Suraj kumar Chaurasiya Mahendra Singh Pradeep Agarwal Yu-Qin Du Yue-Hua Zhou Ming-Wei Ding Ming-Xu Zhang Yu-Juan Guo Shan-Shan Ge Department of Optometry and Vision Science CL Gupta Eye InstituteRam Ganga Vihar Phase II(Extn.)MoradabadUttar Pradesh 244001India Department of Paediatric and Neuro Ophthalmology CL Gupta Eye InstituteRam Ganga Vihar Phase II(Extn.)MoradabadUttar Pradesh 244001India Eye School of Chengdu University of TCM Ineye Hospital of Chengdu University of TCMChengdu 610036Sichuan ProvinceChina Beijing Ming Vision and Ophthalmology Beijing 100010China

Dear Editor,We read with great interest the recently published article titled“Observation of peripheral refraction in myopic anisometropia in young adults”by Du et al[1].The study conducted at the InEye Hospital of Chengdu University of TCM provides valuable insights into the relationship between anisometropia and peripheral refraction in myopic young *** commend the authors for their thorough investigation and adherence to ethical *** the study contributes significantly to our understanding of myopic anisometropia,we would like to draw attention to some limitations that merit consideration for a comprehensive interpretation of the findings.

关键词： Observation young insight

Integrated Multi-stage LQR Power Oscillation Damping FACTS Controller

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CSEE Journal of Power and Energy Systems 2018年第1期4卷 83-92页

作者： Rajendra K.Pandey Deepak kumar gupta Department of Electrical Engineering Indian Institute of Technology(Banaras Hindu University)Varanasi-221005India

This paper presents an approach for oscillation damping with an integrated multi-stage linear quadratic regulator(MSLQR)FACTS controller combining power oscillation damping(POD)*** particle swarm optimization(PSO)technique has been used for precise tuning initial control parameters of power system stabilizers(PSS)and FACTS devices(such as STATCOM and UPFC)which results in improved controller *** is observed that the proposed control structure damps the oscillations adequately and is modular in design *** sample power system comprising six areas is considered to demonstrate the effectiveness of the proposed *** states inter-relation which is shown with eigenvalues reflects better regulation with the proposed *** step response also validates the controller performance.

关键词： Integral time multiplied by absolute error(ITAE) multi-stage linear quadratic regulator(MSLQR) particle swarm optimization(PSO) power oscillation damping controller STATCOM UPFC

Triple tube drainage for “difficult” gastroduodenal perforations:A prospective study

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World Journal of Gastrointestinal Surgery 2017年第1期9卷 19-24页

作者： Nitin Agarwal Nishant kumar Malviya Nikhil gupta Iqbal Singh Sanjay gupta Department of Surgery and Renal Transplant Postgraduate Institute of Medical Education and Research (PG-IMER) and Dr. Ram Manohar Lohia Hospital Depart-ment of Surgery University College of Medical Sciences and Guru Tegh Bahadur Hospital Department of Surgery Post Graduate Institute of Medical Education and Research (PGIMER) and Dr RML Hospital

AIMTo prospectively study the outcome of difficult gastroduodenal perforations (GDPs) treated by triple tube drainage (TTD) in order to standardize the *** presenting to a single surgical unit of a tertiary hospital with difficult GDPs (large, unfavourable local and systemic factors) were treated with TTD (gastrostomy, duodenostomy and feeding jejunostomy). Postoperative parameters were observed like time to return of bowel sounds, time to start enteral feeds, time to start oral feeds, daily output of all drains, time to clamping/removal of all drains, time for skin to heal, complications, hospital stay, and, mortality. Descriptive statistics were *** December 2013 and April 2015, 20 patients undergoing TTD for GDP were included, with mean age of 44.6 ± 19.8 years and male:female ratio of 17:3. Mean pre-operative APACHE II scores were 10.85 ± 3.55; most GDPs were prepyloric (9/20; 45%) or proximal duodenal (8/20; 40%) and mean size was 1.83 ± 0.59 cm (largest 2.5 cm). Median times of resumption of enteral feeding, removal of gastrostomy, removal of duodenostomy, removal of feeding jejunostomy and oral feeding were 4 d (4-5 IQR), 13 (12-16.5 IQR), 16 (16.25-22.25 IQR), 18 (16.5-24 IQR) and 12 d (10.75-18.5 IQR) respectively. Median hospital stay was 22 d (19-26 IQR) while mortality was 4/20 (20%).CONCLUSIONTTD for difficult GDP is feasible, easy in the emergency, and patients recover in two-three weeks. It obviates the need for technically demanding and riskier procedures.

关键词： Peptic ulcer Perforation peritonitis APACHE Triple tube drainage Duodenostomy

Inguinoscrotal region as an unusual site of extra-pancreatic collections in infected pancreatic necrosis

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Gastroenterology Report 2016年第3期4卷 246-250,I0003页

作者： Saurabh Kalia Rahul gupta Sunil DShenvi Hemanth kumar Rajesh gupta Mandeep Kang Surinder Singh Rana Deepak kumar Bhasin Rajinder Singh Surgical Gastroenterology Division Department of General SurgeryPostgraduate Institute of Medical Education and ResearchChandigarhIndia Department of Radiology Postgraduate Institute of Medical Education and ResearchChandigarhIndia Department of Gastroenterology Postgraduate Institute of Medical Education and ResearchChandigarhIndia

Severe acute pancreatitis often leads to pancreatic and peripancreatic collections but,rarely,it can lead to collections at sites remote from the *** male patients presented with abdominal pain and inguinoscrotal *** were initially misdiagnosed with obstructed inguinal hernia,epididymo-orchitis and hydrocele,***,their diagnosis of acute pancreatitis was revealed on laparotomy in one patient and on computed tomography(CT)in the remaining two *** these cases had extensive peripancreatic necrosis and paracolic collections tracking along the psoas muscle,downwards towards the *** collections were initially managed by percutaneous drainage and saline irrigation as a part of the‘step-up’*** of these patients required open necrosectomy,while all required incision and drainage of inguinoscrotal *** the patients were discharged in satisfactory *** swelling is unusual as a first presentation of acute pancreatitis.A high index of suspicion,with careful study of patient’s history and examination along with CT,may provide an accurate *** drainage may be required to control sepsis and also provide an egress route for intra-abdominal collections.

关键词： acute pancreatitis inguinoscrotal collections step-up approach necrosectomy