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A rare case of community acquired Burkholderia cepacia infection presenting as pyopneumothorax in an immunocompetent individual

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Asian Pacific Journal of Tropical Biomedicine 2012年第2期2卷 166-168页

作者： Suman S Karanth Hariharan Regunath kiran chawla Mukhyaprana Prabhu Department of Medicine Kasturba Medical College Department of Medicine University of Missouri Department of Microbiology Kasturba Medical College

Burkholderia cepacia(***)infection is rarely reported in an immunocompetent *** is a well known occurence in patients with cystic fibrosis and chronic granulomatous disease where it increases both morbidity and *** has also been included in the list of organisms causing nosocomial infections in an immunocompetent host,most of them transmitted from the immunocompromised patient in which this organism *** report a rare case of isolation of *** from the bronchoalveolar lavage fluid of an immunocompetent agriculturist who presented with productive cough and fever associated with a *** is the first case of community acquired infection reported in an immunocompetent person in India.

关键词： Burkholderia cepacia Pyopneumothorax Community acquired Immunocompetent Agriculturist

A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 81-100页

作者： S.SAURABH R.kiran D.SINGH R.VAISH V.S.CHAUHAN School of Mechanical and Materials Engineering Indian Institute of Technology Mandi

Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. Hence, this study provides a comprehensive investigation into the nonlinear free vibration and nonlinear bending behavior of bio-inspired composite plates. The inverse hyperbolic shear deformation theory(IHSDT) of plates is employed to characterize the displacement field, with the incorporation of Green-Lagrange nonlinearity. The problem is modeled using the C0finite element method(FEM), and an in-house code is developed in the MATLAB environment to solve it numerically. Various helicoidal layup configurations including helicoidal recursive(HR), helicoidal exponential(HE), helicoidal semi-circular(HS), linear helicoidal(LH), and Fibonacci helicoidal(FH)with different layup sequences and quasi-isotropic configurations are studied. The model is validated, and parametric studies are conducted. These studies investigate the effects of layup configurations, side-to-thickness ratio, modulus ratios, boundary conditions, and loading conditions at different load amplitudes on the nonlinear vibration and nonlinear bending behaviors of bio-inspired composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and nonlinear bending behaviors. Moreover, this influence varies across different side-to-thickness ratios and boundary conditions of the bio-inspired composite plate.

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Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： kiran A.Nirmal Tukaram D.Dongale Atul C.Khot Chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

Electrochemical sensor for dopamine detection based on multiwalled carbon nanotube/molybdenum disulfide quantum dots with machine learning integration and anti-interference capability

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Tungsten 2025年第1期 137-151页

作者： Geethukrishnan Onkar Apte kiran Kumar Tadi Energy Electrodics and Electrocatalysis (EEE) Lab Department of Chemistry School of Advanced Sciences Vellore Institute of Technology School of Computer Science and Engineering Vellore Institute of Technology

The precise detection and measurement of dopamine（DA）,a crucial neurotransmitter in the human body,plays a significant role in diagnosing,preventing,and treating neurological diseases associated with its levels.A highly sensitive DA electrochemical sensor was constructed by combining molybdenum disulfide quantum dots（MSQDs） with multiwalled carbon nanotubes（MWCNTs）.The MSQDs were synthesized using the shear exfoliation *** sensors consist of MSQDs with Mo-S edge catalytic centers for the DA redox reaction,and MWCNTs amplify the sensor *** linearity of the sensor for the detection of DA was tested in the presence of ascorbic acid(AA,50 μmol·L-1) and uric acid(UA,200 μmol·L-1),and exhibited linearity from 2 to 966 μmol·L-1of DA with 0.097 μA(mol·L-1)-1sensitivity and a low limit of detection of0.6 μmol·L-1（the ratio between signal and noise,S/N=3）.Moreover,the sensitivity and selectivity of the sensor were also studied using *** is no increase in amperometric current after adding the most potentially interfering *** sensor was successfully applied to recover DA in human blood sera ***,machine learning algorithms were operated to aid in the near-precise detection of DA in the heterogeneous mixture containing AA and *** algorithms facilitate the identification and quantification of DA amidst coexisting interferents,including AA,that are commonly present in biological matrices.

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Throughflow and g-jitter effects on binary fluid saturated porous medium

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Applied Mathematics and Mechanics(English Edition) 2015年第10期36卷 1285-1304页

作者： P.kiran Department of Applied Mathematics School for Physical Sciences Babasaheb Bhimrao Ambedkar University

A non-autonomous complex Ginzburg-Landau equation （CGLE） for the finite amplitude of convection is derived, and a method is presented here to determine the amplitude of this convection with a weakly nonlinear thermal instability for an oscillatory mode under throughflow and gravity modulation. Only infinitesimal disturbances are considered. The disturbances in velocity, temperature, and solutal fields are treated by a perturbation expansion in powers of the amplitude of the applied gravity field. Throughfiow can stabilize or destabilize the system for stress free and isothermal boundary conditions. The Nusselt and Sherwood numbers are obtained numerically to present the results of heat and mass transfer. It is found that throughfiow and gravity modulation can be used alternately to heat and mass transfer. Further, oscillatory flow, rather than stationary flow, enhances heat and mass transfer.

关键词： weakly nonlinear theory throughflow complex Ginzburg-Landau equation(CGLE) gravity modulation

Effectiveness of sloping agricultural land technology on soil fertility status of mid-hills in Nepal

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Journal of Forestry Research 2013年第4期24卷 767-775页

作者： kiran Lamichhane Institute of Applied Sciences Department of Environmental ScienceUniversity of North Texas

Hedgerows with intercropping systems were established at the ICIMOD test and demonstration site at Godawari to assess the effective- ness of Sloping Agricultural Land Technology （SALT） in reducing run- off water volume, controlling soil loss, increasing crop production, and improving soil fertility in the mid-hills of Nepal. Runoff water volume （1996-2002）, soil loss （1996-2002） and maize yield （1995-2001）, and soil fertility-related parameters were assessed on SALT models with three factors： the type of nitrogen-fixing plant, the farmers＇ practice, and fertilizer use. Results showed a significant effect of Alnus nepalensis and/or Indigofera dosua on runoff water volume, soil loss, crop produc- tion, soil water retention, and soil nutrients （NPK）. Farmers＇ practice and fertilization did not play a significant role in reducing runoff water and soil loss. However, farmers＇ practice significantly increased crop produc- tion. Therefore, integrating soil conservation approaches on SALT sys- tems enhances stable economic output to hills and mountain farmers.

关键词： Sloping Agricultural Land Technology hedgerows agroforestry mountain fanning system soil erosion soil nutrient

Arraying of microphotosynthetic power cells for enhanced power output

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Microsystems & Nanoengineering 2022年第2期8卷 185-202页

作者： kiran Kuruvinashetti Muthukumaran Packirisamy Optical-Bio Microsystems Laboratory Department of MechanicalIndustrial and Aerospace EngineeringConcordia UniversityMontrealQC H3G1M8Canada

Microphotosynthetic power cells(μPSCs)generate power through the exploitation of living photosynthetic’microorganisms by harvesting *** thermodynamic limitations of this process restrict the power output of a single ***,we demonstrateμPSCs in four different array configurations to enhance power output from these power *** this effect,sixμPSCs were arrayed in series,parallel,and combinations of series and parallel *** pPSC was injected with a 2 mL liquid culture of photosynthetic microorganisms(Chlamydomonas reinhardtii)in the anode and 2 mL of 25%(w/v)electron acceptor potassium ferricyanide(K_(3)Fe(CN)_(6))in the *** combinations ofμPSCs connected in series and parallel'generated higher power than the individual series and parallel *** combinations of sixμPSCs connected in series and in parallel produced a high power density of 1914 mWm^(-2)in the presence of white fluorescent light illumination at 20μEm^(-2)s^(-1).Furthermore,to realize the array strategy for real-time applications,a 1.7V/2mA rating light-emitting diode(LED)was powered by combinations of series and parallel array *** results indicate the reliability ofμPSCs to produce electricity from photosynthetic microorganisms for low-power *** addition,the results suggest that a combination of microlevel photosynthetic cells in array format represents a powerful optimal design strategy to enhance the power output fromμPSCs.

关键词： power illumination harvesting

Residue determination ofβ-cyfluthrin and imidacloprid as mix formulation in/on chickpea(Cicer arietinum)pods and soil and its risk assessment

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Food Quality and Safety 2018年第2期2卷 75-81页

作者： Suchi chawla Paresh G.Shah Anil R.Patel Hemlatta K.Patel kiran M.Vaghela Priti P.Solanki Pesticide Residue Laboratory AINP on Pesticide ResiduesICARUnit-9Anand Agricultural UniversityAnandGujaratIndia

OBJECTIVES:A field experiment was conducted at Agricultural Research Station for irrigated crops at Thasara,Anand Agricultural University,Anand,to study the dissipation and risk assessment ofβ-cyfluthrin and imidacloprid as combination product in/on *** AND METHODS:Solomon 300 OD comprising 9 per centβ-cyfluthrin and 21 per cent imidacloprid was foliar sprayed at the doses of 18+42g ***−1(standard dose)and 36+84g ***−1(double dose).Totally three sprays were made at an interval of 1 week starting from fruiting *** AND DISCUSSIONS:The residues ofβ-cyfluthrin estimated using gas chromatograph with electron capture detector(GC-ECD)showed an initial deposit of 0.16 and 0.27μg g−1 in standard and double doses,*** residues for corresponding doses persisted till 7th and 10th day after application and reached below determination level of 0.01μg g−1 on the 10th and 15th day,*** was estimated using high performance liquid chromatography(HPLC)and showed initial deposits of 1.22 and 2.7μg g−1 in standard and double doses,*** levels reached below the determination level(0.01μg g−1)on the 15th day in green *** analysis of dissipation kinetics showed thatβ-cyfluthrin followed zero-order kinetics in standard dose with half-life of 7.27 *** double dose,the dissipation kinetics followed first-order kinetics with half-life of 9 *** followed first-order kinetics in both the doses with half-life of 6.7 and 7.7 ***:A pre-harvest interval(PHI)of 15 days is *** risk assessment calculated as hazard quotient was less than 1,rendering the use of combination product as safe-provided proper PHI is followed.

关键词： chickpea β-cyfluthrin imidacloprid dissipation dissipation kinetics residue risk assessment pods.

Drained rock volume around hydraulic fractures in porous media:planar fractures versus fractal networks

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Petroleum Science 2019年第5期16卷 1064-1085页

作者： kiran Nandlal Ruud Weijermars Harold Vance Department of Petroleum Engineering Texas A&M University3116 TAMUCollege StationTX 77843-3116USA

This study applies the Lindenmayer system based on fractal theory to generate synthetic fracture networks in hydraulically fractured *** applied flow model is based on complex analysis methods,which can quantify the flow near the fractures,and being gridless,is computationally faster than traditional discrete volume *** representation of hydraulic fractures as fractals is a more realistic representation than planar bi-wing fractures used in most reservoir *** withdrawal from the reservoir with evenly spaced hydraulic fractures may leave dead zones between planar *** fractal networks will drain the reservoir matrix more effectively,due to the mitigation of stagnation flow *** flow velocities,pressure response,and drained rock volume(DRV)are visualized for a variety of fractal fracture networks in a single-fracture treatment *** major advancement of this study is the improved representation of hydraulic fractures as complex fractals rather than restricting to planar fracture *** models indicate that when the complexity of hydraulic fracture networks increases,this will suppress the occurrence of dead flow *** order to increase the DRV and improve ultimate recovery,our flow models suggest that fracture treatment programs must find ways to create more complex fracture networks.

关键词： Hydraulic fractures Drained rock volume Dead zones Fractals Branched fractures