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Adaptable physics-based super-resolution for electron backscatter diffraction maps

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npj Computational Materials 2022年第1期8卷 2444-2452页

作者： Devendra k.jangid Neal R.Brodnik Michael G.Goebel Amil khan SaiSidharth Majeti McLean P.Echlin Samantha H.Daly Tresa M.Pollock B.S.Manjunath Electrical and Computer Engineering University California Santa BarbaraSanta Barbara93106-5050CAUSA Mechanical Engineering University California Santa BarbaraSanta Barbara93106-5050CAUSA Computer Science University California Santa BarbaraSanta Barbara93106-5050CAUSA Materials Department University California Santa BarbaraSanta Barbara93106-5050CAUSA

In computer vision,single-image super-resolution(SISR)has been extensively explored using convolutional neural networks(CNNs)on optical images,but images outside this domain,such as those from scientific experiments,are not well *** data is often gathered using non-optical methods,which alters the metrics for image *** such example is electron backscatter diffraction(EBSD),a materials characterization technique that maps crystal arrangement in solid materials,which provides insight into processing,structure,and property *** present a broadly adaptable approach for applying state-of-art SISR networks to generate super-resolved EBSD orientation *** approach includes quaternion-based orientation recognition,loss functions that consider rotational effects and crystallographic symmetry,and an inference pipeline to convert network output into established visualization formats for EBSD *** ability to generate physically accurate,high-resolution EBSD maps with super-resolution enables high-throughput characterization and broadens the capture capabilities for three-dimensional experimental EBSD datasets.

关键词： maps resolution networks

Alignment Techniques in Total knee Arthroplasty：Where do We Stand Today?

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Chinese medical sciences journal = Chung-kuo i hsueh k'o hsueh tsa chih 2024年第3期39卷 2024 Aug 5页

作者： Dhungana Hemanta jangid Subhash Goyal Meghal Department of Orthopedics Fortis Hospital Gurgaon Haryana India.

Achieving optimal alignment in total knee arthroplasty (TkA) is a critical factor in ensuring optimal outcomes and long-term implant survival. Traditionally, mechanical alignment has been favored to achieve neutral post-operative joint alignment. However, contemporary approaches, such as kinematic alignments and hybrid techniques including adjusted mechanical, restricted kinematic, inverse kinematic, and functional alignments, are gaining attention for their ability to restore native joint kinematics and anatomical alignment, potentially leading to enhanced functional outcomes and greater patient satisfaction. The ongoing debate on optimal alignment strategies considers the following factors: long-term implant durability, functional improvement, and resolution of individual anatomical variations. Furthermore, advancements of computer-navigated and robotic-assisted surgery has augmented the precision in implant positioning and objective measurements of soft tissue balance. Despite ongoing debates on balancing implant longevity and functional outcomes, there is an increasing advocacy for personalized alignment strategies that are tailored to individual anatomical variations. This review evaluates the spectrum of various alignment techniques in TkA, including mechanical alignment, patient-specific kinematic approaches, and emerging hybrid methods. Each technique is scrutinized based on its fundamental principles, procedural techniques, inherent advantages, and potential limitations, while identifying significant clinical gaps that underscore the need for further investigation.

关键词： alignment axes anatomical alignment functional alignment hybrid alignment kinematic alignment mechanical alignment total knee arthroplasty

Seismic behavior of variable frequency pendulum isolator

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Earthquake Engineering and Engineering Vibration 2008年第2期7卷 193-205页

作者： V. R. Panchal R. S. jangid Department of Civil Engineering Indian Institute of TechnologyBombayPowaiMumbai 400076India

Earthquake performance of a flexible one-story building isolated with a variable frequency pendulum isolator （VFPI） under near-fault and far-field ground motions is investigated. The frictional forces mobilized at the interface of the VFPI are assumed to be velocity dependent. The interaction between frictional forces of the VFPI in two horizontal directions is duly considered and coupled differential equations of motion of the isolated system in the incremental form are solved iteratively. The response of the system with bi-directional interaction is compared with those without interaction. In addition, the effects of velocity dependence on the response of the isolated system are also investigated. Moreover, a parametric study is carried out to critically examine the influence of important parameters on bi-directional interaction effects of the frictional forces of the VFPI. These parameters are： the superstructure time period, frequency variation factor （FVF） and friction coefficient of the VFPI. From the above investigations, it is observed that the dependence of the friction coefficient on relative velocity of the system does not have a noticeable effect on the peak response of the system isolated with VFPI, and that the bi-directional interaction of frictional forces of the VFPI is important and if neglected, isolator displacements will be underestimated and the superstructure acceleration and base shear will be overestimated.

关键词： base isolation bi-directional interaction superstructure flexibility near-fault ground motion friction coefficient far-field ground motion VFPI

Characterization of Black Carbon in the Ambient Air of Agra,India:Seasonal Variation and Meteorological Influence

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Advances in Atmospheric Sciences 2017年第9期34卷 1082-1094页

作者： Pratima GUPTA Shalendra Pratap SINGH Ashok.jangid Ranjit kUMAR Department of Chemistry Faculty of ScienceDayalbagh Educational Institute (Deemed University) Department of Physics and Computer Science Faculty of ScienceDayalbagh Educational Institute (Deemed University)

This study characterizes the black carbon in Agra, India home to the Taj Mahal--and situated in the lndo-Gangetic basin. The mean black carbon concentration is 9.5 μg m-3 and, owing to excessive biomass/fossil fuel combustion and automobile emissions, the concentration varies considerably. Seasonally, the black carbon mass concentration is highest in winter, probably due to the increased fossil fuel consumption for heating and cooking, apart from a low boundary layer. The nocturnal peak rises prominently in winter, when the use of domestic heating is excessive. Meanwhile, the concentration is lowest during the monsoon season because of the turbulent atmospheric conditions and the process of washout by precipitation. The ratio of black carbon to brown carbon is less than unity during the entire study period, except in winter （December）. This may be because that biomass combustion and diesel exhaust are major black carbon contributors in this region, while a higher ratio in winter may be due to the increased consumption of fossil fuel and wood for heating purposes. ANOVA reveals significant monthly variation in the concentration of black carbon; plus, it is negatively correlated with wind speed and temperature. A high black carbon mass concentration is observed at moderate （1-2 m s-1） wind speed, as compared to calm or turbulent atmospheric conditions.

关键词： black carbon aerosol seasonal variation diurnal variation meteorological parameter,

Lymphoma without Lymphadenopathy

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Chinese Medical Journal 2015年第23期128卷 3256-3257页

作者： Ashutosh Jain Nilesh kumar Mahendra k.jangid Indrajeet Singh Gambhir Vijai Tilak Department of General Medicine Institute of Medical Sciences Banaras Hindu University Varanasi Uttar Pradesh India Department of General Medicine Division of Geriatrics Institute of Medical Sciences Banaras Hindu University Varanasi Uttar Pradesh India Department of Pathology Division of Hematology Institute of Medical Sciences Banaras Hindu University Varanasi Uttar Pradesh India

A seventy-five years old man was presented to our hospital with a complaint of gradually progressive heaviness in the left half of abdomen for past 10 months. History was negative for fever, weight loss, and night swe... 详细信息

关键词： Chronic Lymphocytic Leukemia Cyclin D1 Lymphadenopathy Mantle Cell Lymphoma

An improved LC–MS/MS method for the quantification of alverine and para hydroxy alverine in human plasma for a bioequivalence study

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Journal of Pharmaceutical Analysis 2017年第2期7卷 95-102页

作者： Dhiraj M.Rathod keyur R.Patel Hiren N.Mistri Arvind G.jangid Pranav S.Shrivastav Mallika Sanyal Department of Chemistry Kadi Sarva VishwavidyalayaGandhinagarAhmedabad-382015India Bioanalytical Research Department Accutest Research LabBodakdevAhmedabad-380059India Department of Chemistry School of SciencesGujarat UniversityAhmedabad-380009India Department of Chemistry St.Xavier's CollegeNavrangpuraAhmedabad-380009India

A highly sensitive and selective high performance liquid chromatography–tandem mass spectrometry method was developed and validated for the quantification of alverine（ALV） and its active metabolite, para hydroxy alverine（PHA）, in human plasma. For sample preparation, solid phase extraction of analytes was performed on Phenomenex Strata-X cartridges using alverine-d5 as the internal standard. The analytes were separated on Symmetry Shield RP18（150 mm×3.9 mm, 5 μm） column with a mobile phase consisting of acetonitrile and10 mM ammonium formate（65：35, v/v）. Detection and quantitation was done by electrospray ionization mass spectrometry in the positive mode using multiple reaction monitoring. The assay method was fully validated over the concentration range of 15.0–15,000 pg/mL for ALV and 30.0–15,000 pg/mL for PHA. The intra-day and inter-day accuracy and precision（% CV） ranged from 94.00% to 96.00% and 0.48% to 4.15% for both the analytes. The mean recovery obtained for ALV and PHA was 80.59% and 81.26%, respectively. Matrix effect,expressed as IS-normalized matrix factor ranged from 0.982 to 1.009 for both the analytes. The application of the method was demonstrated for the specific analysis of ALV and PHA for a bioequivalence study in 52 healthy subjects using 120 mg ALV capsules. The assay reproducibility was also verified by reanalysis of 175 incurred subject samples.

关键词： Alverine Para hydroxy alverine Liquid chromatography–tandem mass spectrometry Bioequivalence study Human plasma

Hunting of hunted:an ensemble modeling approach to evaluate suitable habitats for caracals in India

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Ecological Processes 2022年第1期11卷 744-757页

作者： Ashish kumar jangid Chandra Prakash Singh Jai Singh Parihar Jasbir Singh Chauhan Rajnish kumar Singh Prakash kumar Verma Amritanshu Singh Shantanu Sharma Shekhar kolipaka Wildlife Institute of India DehradunUttarakhand 248001India Space Applications Centre Indian Space Research OrganisationAhmedabadGujarat 380015India Madhya Pradesh State Forest Department Madhya Pradesh Tiger Foundation SocietyKuno National ParkBhopalMadhya Pradesh 462001India Leo Foundation WageningenThe Netherlands

Background:Large-scale hunting and various anthropogenic pressures in the recent past have pushed the Asiatic caracal(Caracal caracal schmitzi),an elusive medium-sized and locally threatened felid species towards local extinction in *** widely distributed historically,it has been sparsely reported from several regions of central and northern states in India till twentieth ***,the species distribution became confined only to the states of Rajasthan,Gujarat and Madhya Pradesh,which have had reported sightings in the twenty-first *** order to highlight the potentially suitable habitats for Asiatic caracals in India,we targeted forth-filtering of the spatial model ensemble by creating and utilizing the validated and spatially thinned species presence information(n=69)and related ecological variables(aridity,NDVI,precipitation seasonality,temperature seasonality,terrain ruggedness),filtered with anthropological variable(nightlight).Results:Out of eight spatial prediction models,the two most parsimonious models,Random Forest(AUC 0.91)and MaxEnt(AUC 0.89)were weighted and *** ensemble model indicated several clustered habitats,covering 1207.83 km^(2)areas in kachchh(Gujarat),Aravalli mountains(Rajasthan),Malwa plateau(Rajasthan and Madhya Pradesh),and Bundelkhand region(Madhya Pradesh)as potentially suitable habitats for *** probabilities of pixels were further regressed with converted vegetation height data within selected highly potential habitats,i.e.,Ranthambore kuno Landscape(RkL)(suitability~0.44+0.03(vegetation height)^(**),R^(2)=0.27).The regression model inferred a significant positive relation between vegetation height and habitat suitability,hence the lowest ordinal class out of three classes of converted vegetation height was masked out from the RkL,which yielded in an area of 567 km^(2) as potentially highly suitable habitats for caracals,which can be further proposed as survey areas and conservation priority are

关键词： Medium-sized cat Caracal caracal schmitzi Potentially suitable habitat Drylands Potential survey area

Simultaneous analysis of allopurinol and oxypurinol using a validated liquid chromatography–tandem mass spectrometry method in human plasma

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Journal of Pharmaceutical Analysis 2017年第1期7卷 56-62页

作者： Dhiraj M. Rathod keyur R. Patel Hiren N. Mistri Arvind G. jangid Pranav S. Shrivastav Mallika Sanyal Department of Chemistry Kadi Sarva Vishwavidyalaya Gandhinagar Ahmedabad 382015 India Bioanalytical Research Department Accutest Research Lab Bodakdev Ahmedabad 380059 India Department of Chemistry School of Sciences Gujarat University Ahmedabad 380009 India Department of Chemistry St. Xavier's College Navrangpura Ahmedabad 380009 India

The present study describes a simple, reliable and reproducible liquid chromatography–tandem mass spectrometry method(LC–MS/MS) for the simultaneous determination of allopurinol and its active metabolite,oxypurinol in human plasma for a pharmacokinetic/bioequivalence study. After protein precipitation(PPT) of100 μL plasma sample with 1.0% formic acid in acetonitrile, the recovery of the analytes and allopurinol-d2 as an internal standard ranged from 85.36% to 91.20%. The analytes were separated on Hypersil Gold(150 mm×4.6 mm, 5 μm) column using 0.1% formic acid-acetonitrile(98:2, v/v) as the mobile *** was done using electrospray ionization in the positive mode. The calibration concentration range was established from 60.0 to 6000 ng/m L for allopurinol and 80.0–8000 ng/m L for oxypurinol. Matrix effect in human plasma, expressed as IS-normalized matrix factors ranged from 1.003 to 1.030 for both the analytes. The developed method was found suitable for a clinical study with 300 mg allopurinol tablet formulation in healthy subjects.

关键词： Allopurinol Oxypurinol Liquid chromatography–tandem mass spectrometry Bioequivalence study

Liquid chromatography-tandem mass spectrometry method for simultaneous determination of albendazole and albendazole sulfoxide in human plasma for bioequivalence studies

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Journal of Pharmaceutical Analysis 2016年第4期6卷 226-234页

作者： Dhiraj M.Rathod keyur R.Patel Hiren N.Mistri Arvind G.jangid Pranav S.Shrivastav Mallika Sanyal Department of Chemistry Kadi Sarva Vishwavidyalaya Bioanalytical Research Department Accutest Research Lab Department of Chemistry School of SciencesGujarat University Department of Chemistry St.Xavier's College

An improved high performance liquid chromatography-tandem mass spectrometry（LC-MS/MS） method has been developed for sensitive and rapid determination of albendazole（ABZ） and its active metabolite,albendazole sulfoxide（ABZSO）,in the positive ionization *** method utilized solid phase extraction（SPE） for sample preparation of the analytes and their deuterated internal standards（ISs） from100 μL human *** chromatography was carried out on Hypurity C_（18） column using acetonitrile-2.0 mM ammonium acetate,pH 5.0（80：20,v/v） as the mobile *** assay exhibited a linear response over the concentration range of 0.200-50.0 ng/mL for ABZ and 3.00-600 ng/mL for *** recoveries of the analytes and ISs ranged from 86.03%-89.66%and 89.85%-98.94%,*** effect,expressed as IS-normalized matrix factors,ranged from 0.985 to 1.042 for the both *** method was successfully applied for two separate studies in healthy subjects using single dose of 400 mg conventional tablets and 400 mg chewable ABZ tablets,respectively.

关键词： Albendazole Albendazole sulfoxide LC-MS/MS Solid phase extraction Bioequivalence study