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Reservoir heterogeneity analysis using multi-directional textural attributes from deep learning-based enhanced acoustic impedance inversion:A study from Poseidon,NW shelf Australia

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Energy Geoscience

Energy Geoscience 2024年第2期5卷 202-213页

作者： Anjali dixit Animesh Mandal Shib Sankar Ganguli Department of Earth Sciences Indian Institute of Technology KanpurKanpur208016India Marine and Deep Seismic CSIR-NGRIHyderabad500007India

Reservoir heterogeneities play a crucial role in governing reservoir performance and ***,detailed and inter-well heterogeneity analyses are commonly performed by mapping seismic facies change in the seismic data,which is a time-intensive *** researchers have utilized a robust Grey-level co-occurrence matrix(GLCM)-based texture attributes to map reservoir ***,these attributes take seismic data as input and might not be sensitive to lateral lithology *** incorporate the lithology information,we have developed an innovative impedance-based texture approach using GLCM workflow by integrating 3D acoustic impedance volume(a rock propertybased attribute)obtained from a deep convolution network-based impedance *** proposed workflow is anticipated to be more sensitive toward mapping lateral changes than the conventional amplitude-based texture approach,wherein seismic data is used as *** evaluate the improvement,we applied the proposed workflow to the full-stack 3D seismic data from the Poseidon field,NW-shelf,*** study demonstrates that a better demarcation of reservoir gas sands with improved lateral continuity is achievable with the presented approach compared to the conventional *** addition,we assess the implication of multi-stage faulting on facies distribution for effective reservoir *** study also suggests a well-bounded potential reservoir facies distribution along the parallel fault ***,the proposed approach provides an efficient strategy by integrating the impedance information with texture attributes to improve the inference on reservoir heterogeneity,which can serve as a promising tool for identifying potential reservoir zones for both production benefits and fluid storage.

关键词： Seismic texture attributes Seismic acoustic impedance Multi-directional texture attributes Reservoir heterogeneity Reservoir characterization Poseidon field

GeMemiOM: the curated database on genes, putative methylation study targets, and microRNA targets for otitis media

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Journal of Genetics and Genomics 2024年第2期51卷 260-263页

作者： Kondyarpu Abhishek Bineet Kumar Mohanta Pratima Kumari Anshuman dixit Puppala Venkat Ramchander Institute of Life Sciences Nalco SquareChandrasekharpurBhubaneswarIndia Regional Center for Biotechnology FaridabadHaryanaIndia

Otitis media(OM),the most underrated middle ear disease,often onsets during childhood and gets complicated in susceptible *** of the middle ear(ME)leads to its degradation and abnormal physiological *** ME inflammation sometimes results in lethal secondary complications(Penido et al.,2016).OM is a corroboration of multiple facets that leads to disabling hearing loss and associated *** of the facets constituted are genetic,epigenetic,immunogenetic,anatomical.

关键词： inflammation media

Optoelectronic and thermoelectric properties of spinel chalcogenides HgLa2X4（X=S and Se）:A first-principles study

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Journal of Rare Earths 2024年第10期 1927-1936页

作者： Aparna dixit Inas A.Ahmed Jisha Annie Abraham Zeinhom M.El-Bahy Mumtaz Manzoor Sajad Ahmad Dar Ramesh Sharma Department of Basic Science and Humanities Pranveer Singh Institute of Technology Department of Chemistry Faculty of ScienceKing Khalid University Department of Physics National Defence Academy Department of Chemistry Faculty of ScienceAl-Azhar University Institute of Physics Slovak Academy of Sciences Department of Physics Motilal Vigyan Mahavidyalya College Department of Applied Science Feroze Gandhi Institute of Engineering and Technology

We investigated spinel chalcogenides HgLa2（S/Se）4by using density function theory,and scrutinized the structural,optical,electrical,mechanical and thermoelectric transport characteristics of HgLa2（S/Se）4spinel *** enthalpy of formation,energy of cohesion,and energy volume optimum plots were used to obtain the stability as well as the perfect ground state of these *** ductility of these materials was the best illustrated with the help of Poisson's and Pugh's *** band gap results were obtained using Trans and Blaha modified Becke-Johanson potential（TB-mBJ）.Both the materials present semi-conducting nature with direct band gap equal to 1.449 and 0.892 eV respectively for HgLa2S4and *** were also made for optical characteristics with the values of dielectric function,absorption coefficient,optical conductivity,reflectivity,and refractive *** to the findings,both of these materials are suitable for infrared optoelectronic *** materials were found to have promising optoelectronic and thermoelectric applications after their optical properties and transport aspects were *** tiny levels of temperature conductivities,substantial am ounts of power conductivities,the figure of merit（more than unity）,as well as Seebecs coefficients all point to the potential use of both the materials in thermoelectric power generators.

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Association of cannabis use disorder with atrial fibrillation in young men without concomitant tobacco use:Insights from nationwide propensity matched analysis

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World Journal of Experimental Medicine 2024年第3期14卷 64-71页

作者： Bhavin Patel Sumanth Khadke Kshitij Mahajan Avleen Dhingra Rishika Trivedi Samrath Singh Brar Sakshi dixit Vaibhav Periwal Shaylika Chauhan Rupak Desai Department of Internal Medicine Trinity Health Oakland HospitalPontiacMI 48341United States Lahey Hospital and Medical Center Division of Cardiovascular MedicineDepartment of MedicineBurlingtonMA 01805United States Department of Internal Medicine Trinity Health Oakland/Wayne State UniversityPontiacMI 48341United States Department of Medicine Dayanand Medical College and HospitalLudhiana 141001PunjabIndia Department of Internal Medicine DHR HealthEdinburgTX 78539United States Department of Medicine Government Medical CollegePatiala 147001PunjabIndia Department of Internal Medicine Geisinger Health SystemWikes-BarrePA 18702United States Independent Researcher Outcomes ResearchAtlantaGA 30079United States

BACKGROUND Recent data are inconclusive regarding the risk of arrhythmias among young cannabis ***,many young adults use both cannabis and tobacco,which could add a residual confounding effect on ***,we studied young men who have cannabis use disorder(CUD)excluding tobacco use disorder(TUD)to understand their independent association with atrial fibrillation(AF)and related *** To study the association of CUD with AF and related *** We used weighted discharge records from National Inpatient Sample(2019)to assess the baseline characteristics and mortality rates for AF-related hospitalizations in young(18-44 years)men in 1:1 propensity-matched CUD+vs CUD-cohorts without *** Propensity matched CUD+and CUD-cohorts consisted of 108495 young men in each *** analysis showed an increased incidence of AF in black population with *** addition,the CUD+cohort had lower rates of hyperlipidemia(6.4%vs 6.9%),hypertension(5.3%vs 6.3%),obesity(9.1%vs 10.9%),alcohol abuse(15.5%vs 16.9%),but had higher rates of anxiety(24.3%vs 18.4%)and chronic obstructive pulmonary disease(COPD)(9.8%vs 9.4%)compared to *** adjustment with covariates including other substance abuse,a non-significant association was found between CUD+cohort and AF related hospitalizations(odd ratio:1.27,95%confidence interval:0.91-1.78,P=0.15).CONCLUSION Among hospitalized young men,the CUD+cohort had a higher prevalence of anxiety and COPD,and slightly higher proportion of black *** there were higher odds of AF hospitalizations in CUD+cohort without TUD,the association was statistically *** subgroup analysis showed higher rates of AF in black ***-scale prospective studies are required to evaluate long-term effects of CUD on AF risk and prognosis without TUD and concomitant substance abuse.

关键词： Cannabis Marijuana Atrial fibrillation Tobacco use disorder Original research Smoking

Single Molecule Analysis of the Arabidopsis FRA1 Kinesin Shows that It Is a Functional Motor Protein with Unusually High Processivity

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Molecular Plant 2011年第5期4卷 879-885页

作者： Chuanmei Zhu Ram dixit Biology Department Washington University St Louis MO 63130 USA

The Arabidopsis FRA1 kinesin contributes to the organization of cellulose microfibrils through an unknown mechanism. The cortical localization of this kinesin during interphase raises the possibility that it transports cell wallrelated cargoes along cortical microtubules that either directly or indirectly influence cellulose microfibril patterning. To determine whether FRA1 is an authentic motor protein, we combined bulk biochemical assays and single molecule fluorescence imaging to analyze the motor properties of recombinant, GFP-tagged FRA1 containing the motor and coiled-coil domains （designated as FRAI（707）-GFP）. We found that FRAI（707）-GFP binds to microtubules in an ATP-dependent manner and that its ATPase activity is dramatically stimulated by the presence of microtubules. Using single molecule studies, we found that FRAI（707）-GFP moves processively along microtubule tracks at a velocity of about 0.4 μm s-1. In addition, we found that FRAI（707）-GFP is a microtubule plus-end-directed motor and that it moves along microtubules as a dimer. Interestingly, our single molecule analysis shows that the processivity of FRAI（707）-GFP is at least twice the processivity of conventional kinesin, making FRA1 the most processive kinesin to date. Together, our data show that FRA1 is a bona fide motor protein that has the potential to drive Iong-distance transport of cargo along cortical microtubules.

关键词： Kinesin FRA1 cortical microtubule single molecule cellulose Arabidopsis.

Partial genomic organization of ribosomal protein S7 gene from malaria vector Anopheles stephensi

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Insect Science 2007年第2期14卷 101-106页

作者： RAJNIKANT dixit SARITA dixit UPAL ROY YOGESH S.SHOUCHE SURENDRA GAKHAR Department of Biosciences Maharshi Dayanand University RohtakPune University Campus Pune India National Centre for Cell Science Pune University Campus Pune India

In this study, we describe the partial genomic organization of ribosomal protein S7 gene isolated from the mosquito Anopheles stephensi. Initially a 558 bp partial cDNA sequence was amplified as precursor mRNA sequence containing 223 bp long intron. 5＇ and 3＇ end sequences were recovered using end specific rapid amplification of cDNA ends （RACE） polymerase chain reaction. The full-length cDNA sequence was 914 nucleotide long with an open reading frame capable of encoding 192 amino acid long protein with calculated molecular mass of 22174 Da and a pI point of 9.94. Protein homology search revealed 〉75% identity to other insect＇s S7 ribosomal proteins. Analysis of sequence alignment revealed several highly conserved domains, one of which is related to nuclear localization signal （NLS） region of human rpS7. Interestingly, intron nucleotide sequence comparison with A. gambiae showed a lesser degree of conservation as compared to coding and untranslated regions. Like this, early studies on the genomic organization and cDNA/ Expressed sequence tag analysis （EST） could help in genome annotation ofA. stephensi, and would be likely to be sequenced in the future.

关键词： Anopheles malaria mosquito ribosomal protein vector

Bi3+assisted luminescence in SrMoO_(4):Sm^(3+) red phosphors

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Journal of Rare Earths 2021年第11期39卷 1336-1343,I0002页

作者： Vaibhav Chauhan Prashant dixit Praveen C.Pandey Department of Physics Indian Institute of Technology(Banaras Hindu University)Varanasi221005UPIndia

In this paper,we report synthesis of pure SrMoO_(4),Sm^(3+)(1 at%-5 at%)doped SrMoO_(4)and Bi^(3+)(1 at%-3 at%)co-doped in 4 at%Sm^(3+)doped SrMoO_(4)(SrMoO_(4):4 Sm^(3+))phosphors by solution combustion *** X-ray diffraction(XRD)analysis reveals the tetragonal phase of all samples,also Bi^(3+)co-doping supports crystallite size growth and reduces lattice *** analysis of Sm^(3+)doped SrMoO_(4)ascertains a decrease in band gap and Bi^(3+)co-doping confirms the emergence of an absorbance peak at around 308 nm attributed to Bi^(3+)energy ***(PL)analysis ascertains an increase in emission peaks for Sm^(3+)doped SrMoO_(4)up to 4%concentration,which are attributed to an electron transition from 4 G5/2 to 6 HJ(J=5/2,7/2,9/2,and 11/2)energy levels of Sm^(3+)*** have explained the effects of Bi^(3+)co-doping on the luminescence of Sm^(3+)doped SrMoO_(4).The reduced microstrain and increased crystallinity of the phosphors as a result of Bi^(3+)co-doping and their correlation with the luminescence of Sm^(3+)ions are discussed.

关键词： SrMoO_(4):Sm^(3+) Bismuth ion Photoluminescence Absorption study Crystallinity Microstrain

维普期刊数据库

L-Proline catalyzed one-pot multi-component synthesis of 2-(1,3-diphenyl-1H-pyrazol-4-yl)quinazolin-4(3H)-one derivatives and their biological studies

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Chinese Chemical Letters 2014年第5期25卷 741-744页

作者： Hemal B. Mehta Bharat C. dixit Ritu B. dixit Ashok and Rita Patel Institute of Integrated Study and Research in Biotechnology and Allied Sciences Chemistry Departments V. P. and R. P. T. P Science CollegeAffiliated to Sardar Patel University

A new series of quinazolin-4（3H）-one derivatives containing a（1 3-diphenyl-1H-pyrazol-4-yl） core with substituents at the 2-position and aromatic or heteroaromatic substituents at the 3-position were synthesized using an L-proline catalyzed one-pot multi-component reaction *** the synthesized compounds were characterized and screened for their antimicrobial,antifungal and anti-tubercular activities.

关键词： Quinazolin-4(3H)-one Pyrazole L-Proline Antimicrobial Antifungal Anti-tubercular activity

维普期刊数据库

ML-Fresh: Novel Routing Protocol in Opportunistic Networks Using Machine Learning

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Computer Systems Science & Engineering 2022年第2期40卷 703-717页

作者： Puneet Garg Ashutosh dixit Preeti Sethi Department of Computer Engineering J.C.Bose University of Science and TechnologyYMCAFaridabad121006India

Opportunistic Networks(OppNets)is gaining popularity day-by-day due to their various applications in the real-life *** two major reasons for its popularity are its suitability to be established without any requirement of additional infrastructure and the ability to tolerate long delays during data *** Network is also considered as a descendant of Mobile Ad hoc Networks(Manets)and Wireless Sensor Networks(WSNs),therefore,it inherits most of the traits from both mentioned networking *** from its popularity,Opportunistic Networks are also starting to face challenges nowadays to comply with the emerging issues of the large size of data to be communicated and blind forwarding of data among participating nodes in the *** issues lower the overall performance of the *** this thing in mind,ML-Fresh-a novel framework has been proposed in this paper which focuses to overcome the issue of blind forwarding of data by maintaining an optimum path between any pair of participating nodes available in the OppNet using machine learning techniques *** prediction,decision tree prediction,adamic-adar method for complex *** from this,ML-Fresh also uses the history of successful encounters between a pair of communicating nodes for route prediction in the *** results prove that the ML-Fresh outperforms the existing framework of Opportunistic Networks on the grounds of standard Quality-of-Service(QoS)parameters.

关键词： Opportunistic networks artificial intelligence machine learning link prediction routing protocols QoS parameters