210 research outputs found
Differential Sandwich Theorems For Certain Analytic Functions.
We give some applications of first order differential super ordinations to obtain sufficient conditions for normalized analytic functions f(z) to satisf
On Planar Harmonic Mappings And Minimal Surfaces
The project seeks to study the geometric properties of planar harmonic mappings (and related mappings),
and aims to apply the findings in the investigation of minimal surfaces
Neighborhoods of Starlike and Convex Functions Associated with Parabola
Let f be a normalized analytic function defined on the unit disk and fλ(z):=(1−λ)z+λf(z) for 00, a function f∈ðÂ’®ðÂ’«(α,λ) if zf′(z)/fλ(z) lies in the parabolic region Ω:={w:|w−α|0, the δ-neighbourhood of a function f∈ðÂ’žðÂ’«(α,λ) is shown to consist of functions in the class ðÂ’®ðÂ’«(α,λ)
A Traffic Control Framework for Uncrewed Aircraft Systems
The exponential growth of Advanced Air Mobility (AAM) services demands
assurances of safety in the airspace. This research a Traffic Control Framework
(TCF) for developing digital flight rules for Uncrewed Aircraft System (UAS)
flying in designated air corridors. The proposed TCF helps model, deploy, and
test UAS control, agents, regardless of their hardware configurations. This
paper investigates the importance of digital flight rules in preventing
collisions in the context of AAM. TCF is introduced as a platform for
developing strategies for managing traffic towards enhanced autonomy in the
airspace. It allows for assessment and evaluation of autonomous navigation,
route planning, obstacle avoidance, and adaptive decision making for UAS. It
also allows for the introduction and evaluation of advance technologies
Artificial Intelligence (AI) and Machine Learning (ML) in a simulation
environment before deploying them in the real world. TCF can be used as a tool
for comprehensive UAS traffic analysis, including KPI measurements. It offers
flexibility for further testing and deployment laying the foundation for
improved airspace safety - a vital aspect of UAS technological advancement.
Finally, this papers demonstrates the capabilities of the proposed TCF in
managing UAS traffic at intersections and its impact on overall traffic flow in
air corridors, noting the bottlenecks and the inverse relationship safety and
traffic volume.Comment: 6 pages, 7 figure
Thidiazuron as a defoliant to facilitate mechanical harvesting in cotton: A comprehensive review
Cotton is primarily cultivated for its commercial fiber, which plays a significant role in India’s agro-industrial sector. It is one of the primary raw materials for producing feed, oil, fiber, and biofuel. Currently, farmers in India widely employ machine harvesters to harvest cotton. However, excessive leaf vegetation poses challenges in boll picking, adversely affecting fiber quality and reducing mechanical harvesting efficiency. Various chemical defoliants are applied to remove leaves before harvesting to address this issue. These defoliants promote leaf shedding, minimize debris in the cotton, and enhance boll opening and picking efficiency. Thidiazuron is a potent hormonal defoliant used in cotton to induce defoliation by increasing ethylene production while inhibiting the synthesis and transport of auxins. Notably, it interferes with the crosstalk between the phytohormones, such as cytokinin and ethylene, which regulates cotton defoliation. The method and timing of defoliant application are crucial for improving cotton harvesting efficiency. This review aims to provide a clear understanding of thidiazuron’s application in synchronizing harvests, ultimately supporting the mechanization of cotton harvesting
Solvent volume dependent physical properties and electrocatalytic ability of nebulizer spray deposited CuInGaS 2 counter electrode for dye-sensitized solar cells
CuInGaS2 (CIGS) thin films were coated using nebulizer spray technique for different solvent volumes (10, 30, 50 and 70 ml) at the substrate temperature of 350 °C. The structural, optical and electrical properties were studied for the prepared CIGS thin films. CIGS thin films exhibited tetragonal structure and the maximum crystallite size was calculated for the film deposited using 50 ml solvent volume. The surface morphology of CIGS thin films was analyzed from scanning electron microscopy and atomic force microscopy studies. The electrical parameters of CIGS thin films such as resistivity, carrier concentration and mobility were examined using four probe method and Hall measurements. Electrocatalytic activities of the CIGS films towards redox couple (I−/I3−) were analyzed by cyclic voltammograms, electrochemical impedance spectroscopy, and Tafel polarization measurements. The high photocurrent efficiency was obtained for the CIGS counter electrode prepared using 50 ml solvent volume
Solvent volume-driven CuInAlS2 nanoflake counter electrode for effective electrocatalytic tri-iodide reduction in dye-sensitized solar cells
The influence of solvent volume on the properties of CuInAlS2 (CIAS) thin films deposited using simple and cost-effective nebulizer spray technique is studied. The polycrystalline CIAS thin films with tetragonal structure have been observed from the XRD results. SEM images show nanoflake-like structure on the film surface. The elemental presence and its chemical composition were examined by XPS and EDS. The deposited CIAS film for different solvent volume exhibited p-type semiconductor. Cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel polarization measurements demonstrated that CIAS counter electrodes are capable of tri-iodide reduction process. The performances of photocurrent density-voltage for the CIAS CE exhibited the maximum efficiency of 2.55% with the short-circuit current density of 7.22 mA cm−2
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