The implementation of nanofertilizers in agriculture is the purpose specific to decrease mineral losses fertilizing and raises yield during management as well supporting development. Hence, this experiment was conducted Shebin El-Kom, El-Monifia governorate, Egypt, two seasons 2017 2018 study effect micronutrient oxide nanoparticles zinc, iron, manganese, combination between these oxides a foliar application on growth, yield, quality squash plants. obtained results showed that spraying...

Manganese, zinc, and iron are the most essential micronutrients required for plant growth applied as foliar fertilizers. Herein, a simple template-free microwave-assisted hydrothermal green synthesis technique was adapted to produce manganese zinc ferrite nanoparticles (Mn0.5Zn0.5Fe2O4 NPs) at different temperatures (100, 120, 140, 160 180 °C). The prepared nanomaterials were employed concentrations (0, 10, 20, 30 ppm) nanofertilizers during squash (Cucurbita pepo L) planting process. X-ray...

Notch filters are used in spectroscopy, multi-photon microscopy, fluorescence instrumentation, optical sensors and other life science applications. One type of notch filter is based on a fiber-coupled Fabry–Pérot cavity, which formed by reflector (external mirror) facing dielectric-coated end an fiber. Tailoring this kind for different applications possible because the external mirror has fewer mechanical constraints. In paper we present modeling implementation fiber inserted into...

Miniaturized spectrometers are being developed in the recent few years leveraging rapidly-progressing technology and triggering new markets field of on-site mobile spectroscopic analysis. Although some devices were commercialized for near-infrared spectroscopy (NIRS), their size cost still don't meet requirements ubiquitous deployment spectrometer as a spectral sensor needed smart industry IoT applications. In this work we report an integrated microelectromechanical system (MEMS)-based...

New Schiff bases of O-amine functionalized chitosan derivatives were obtained from the coupling with 4-methoxy benzaldehyde (Schiff base I), 4-chloro II), and diethyl amino acetone III).The structure prepared innovative was characterized using Fourier transform infrared, thermal gravimetric analysis, differential scanning calorimetry, electron microscope.A batch system applied to study adsorption methylene blue (as a model cationic dye) aqueous solutions these new bases.The parameters...

In this work, we present an optical gyroscope based on hybrid semiconductor-fiber ring laser. The proposed is a Ring Laser Gyroscope (RLG), in which the laser cavity fiber of standard single mode where semiconductor amplifier used as gain medium for Taking advantage bidirectional nature cavity, two counter-propagating waves are supported cavity. identical terms their resonance frequency due to reciprocity loop static position. A shift introduced between when subjected angular rotation, known...

Optical phase modulators are essential building components in a wide range of applications, for instance, optical communication systems, tunable lasers, locked loops, and sensors. The production in-plane MEMS-based modulator with self-aligned mirrors, actuator, fiber grooves enables the low cost easy integration fiber-based lasers sensors or photonic microsystems. In this paper, we report an transmission type fabricated by deep reactive ion etching technology on silicon-on-insulator (SOI)...

Background: Diabetic retinopathy (DR) is a significant complication of type 2 diabetes, often leading to vision impairment or blindness. Early and accurate diagnosis essential for effective management. Serum microRNAs have shown promise as potential biomarkers Retinopathy (DR). Methods: Eighty individuals were categorized into four groups, including healthy controls, diabetic patients without (NDR), with non-proliferative DR (NPDR), proliferative (PDR). Results: miR-1281 levels showed...

Abstract We report on the fine tuning of sputtered gold nanoparticles (Au NPs) with optimized diameters (7–25 nm) and distribution high surface area titania nanotube arrays (TNTs). The uniform coverage Au NPs both outside inside was possible by adjusting sputtering current, as confirmed via scanning electron microscopy imaging X‐ray diffraction analysis. Decorating TNTs extended their optical activity to visible region light spectrum. This red shift attributed localized plasmon resonance...

The temperature dependence of the beating frequencies in multi-longitudinal mode hybrid semiconductor-fiber based ring lasers is studied theoretically and experimentally. variation frequency with found to be smaller for larger cavity length lower order. Measured as low -0.24 Hz/°C obtained 2.7 km. stability evaluated using Allan variance technique. measurement carried out different orders. lowest order has about 20x better long-term than 100th

Intensive industrial and academic research is oriented towards the design fabrication of fiber ring lasers for application in different sensing systems. Using long drum cavity has advantages concerning system parameters such as linewidth frequency stability, which are vital laser sensors. However, increases number oscillating modes decreases power level per mode. Hence, beating signal, RF domain, between deteriorated affecting signal-to-noise ratio In this work, a with semiconductor optical...

This study aims to synthesize manganese zinc ferrite nanoparticles (Mn 0.5 Zn Fe 2 O 4 NPs) using a green chemistry synthesis technique and investigate their efficiency as nanofertilizers for squash plant ( Cucurbita pepo L). In this work, Mn NPs were successfully prepared at different temperatures via simple template-free microwave-assisted hydrothermal route used foliar plant. The physicochemical characteristics of the as-prepared ferrites investigated X-ray diffraction (XRD), N...

Veno-occlusive disease is an important pattern of hepatotoxicity associated with antineoplastic drugs. The study investigated the possible therapeutic effects RHS nanoparticles combined a PDGF on veno-occlusive (VOD) in liver elicited rats DAC. In this work, nanosilica (SiO2) was successfully prepared from rice husk, and its physicochemical characteristics were using EDX, XRD, N2 adsorption-desorption isotherm, SEM, TEM. Forty-eight male Sprague-Dawely distributed into 6 groups, 8 each....

Fiber lasers are gaining wide attention nowadays due to their high stability, reliability, low cost and compactness. Frequency modulation of the laser system has many applications such as wavelength tuning, active mode locking, generation optical frequency combs fiber sensors in general. In this work, we report ring using transmission-type corner cube in-plane MEMS phase modulator fabricated by DRIE technology on an SOI substrate. The fiber-coupled MEMS-based is inserted a multilongitudinal...

In this work we report an in-line, transmission-type corner-cube optical Phase Modulator (PM) fabricated by DRIE technology on SOI substrate. The PM has a resonance frequency of 11.2 kHz and maximum travel range 5.5 μm. structure is tested using single-mode fibers in Mach-Zehnder interferometer configuration at the wavelength 1550 nm demonstrating capability producing both low high modulation indices varying applied voltage.

Diffuse reflectance infrared spectroscopy has gained traction in many industrial applications the recent years due to emergence of new generation low cost handheld spectrometers that did not exist a decade ago. Real-time monitoring puts limit on sample preparation process especially with inhomogeneous samples food industry, like grains, hay, wheat and corn. The heterogeneity pseudo-random spatial arrangement grains front optical interface, leads prediction errors. variations depend also spot...

Background: Keratoconus is a prevalent ectatic disorder marked by progressive bilateral corneal thinning, resulting in conical shape. This non-inflammatory thinning primarily occurs the infero-temporal region, serving as key diagnostic feature for keratoconus. study aimed to compare efficacy of Anterior Segment Optical Coherence Tomography (AS-OCT) detection subclinical keratoconus with Pentacam. Methods: was comparative cross-sectional designed AS-OCT The included 30 eyes patients aged...