Size Parameters Research Articles

Rigorous justification of a localized approximation to encode off-axis Gaussian acoustical beams.

With the model of generalized Lorenz-Mie theory (GLMT) and the extended boundary condition method, describing the interaction between electromagnetic (EM) waves (more specifically laser beams) and particles, an acoustical GLMT-like framework can be used to deal with acoustical wave scattering. The incident acoustical wave may then be encoded in a set of beam shape coefficients (BSCs) similar to the ones used in EM scattering. Following a paper devoted to the evaluation of acoustical BSCs using a localized approximation in the case of on-axis Gaussian acoustical beams, the present paper deals with the evaluation of acoustical BSCs in the case of off-axis Gaussian acoustical beams.

Periconceptional maternal and paternal alcohol consumption and embryonic and fetal development: the Rotterdam periconception cohort

Research QuestionWhat is the impact of maternal and paternal alcohol consumption in the periconception period on embryonic and foetal development assessed using three-dimensional ultrasound and VR techniques? DesignThis is a prospective observational study embedded in the Rotterdam Periconception Cohort (Predict study). Participating women received longitudinal 3D transvaginal ultrasound examinations from week 7 up to week 12 of gestation to measure crown-rump length (CRL) and embryonic volume (EV). Mid-pregnancy foetal size parameters and birthweight were retrieved from medical files. Participants filled out a periconception exposure questionnaire and a validated food frequency questionnaire. Linear mixed models were used to analyse the association between parental alcohol consumption, and embryonic and foetal developmental parameters. Results1141 female and 987 male participants were included in our analyses. Maternal moderate alcohol consumption in the periconception period resulted in a smaller head circumference (β=-1.85, SE=0.84, P=0.03), abdominal circumference (β=-2.65, SE=0.93, P=0.004), femur length (β=-0.56, SE=0.22, P=0.01), and estimated foetal weight (β=-9.36, SE=4.35, P=0.03) at 20 weeks of gestation. Paternal alcohol consumption showed significant positive associations, mainly with foetal size parameters (AC: β=0.033, SE=0.01, P=0.008; EFW: β=0.131, SE:0.06, P=0.03). ConclusionsModerate maternal alcohol consumption is negatively associated with foetal growth parameters. Moreover, alcohol is proven a strong teratogen and the consumption before and during pregnancy should be discouraged in both women and men since it affects both several parameters of embryonic and foetal development.

Vibration of bolted composite cylindrical-cylindrical flanged shells considering contact characteristics

A semi-analytical model for bolted composite cylindrical-cylindrical flanged shells (BCCFS) considering the influence of the flange and the connection characteristics of the bolted flange joint is established. In the model, flanges are treated as annular plate structures and modeled using Kirchhoff plate theory. To simulate the connectivity performance of the bolted flange joint, a surface-spring model considering the pressure distribution characteristics is developed and applied to the model of the bolted structure. A method based on fractal contact theory is proposed to identify stiffness-related parameters of the surface-spring model, which avoids additional tensile experiments of the bolted joint. Sufficient modal tests are performed to validate the accuracy of the model. Furthermore, the effects of flange thickness, length ratio of two shells, and quantity of bolts on the free vibration characteristics of the structure are studied. The frequency veering phenomenon with the variation of size parameters is found and analyzed in depth.

Temperature Compensation using Constraint based Dynamic Time Warping in Guided Waves

Introduction: Guided waves being highly sensitive to temperature variations, temperature compensation algorithms, such as Optimal Baseline Selection, Baseline Signal Stretch and Scale Transform demonstrate effective performance under limited conditions. Dynamic Time Warping (DTW) has shown excellent compensation performance, however it comes with a substantial computational burden of O(N*N), where N represents the number of samples in each signal. Methodology: DTW works by construction of cost matrix that maps every point in one time series to all the points in the other time series, that results in complexity O(N*N).This problem can be solved by narrowing the search window using global constraints. The two most common constraints in the literature are the Sakoe-Chiba band and the Itakura Parallelogram. This paper uses Sakoe-Chiba band as a global constraint, the Sakoe-Chiba band is defined through a window size parameter which determines the largest temporal shift allowed from the diagonal. Temperature compensation performance of DTW Sakoe-Chiba is tested using the available OGW dataset #2 provided by Jochen Moll et al. The OGW dataset has been generated using 12 number of piezoelectric transducers bounded to CFRP (Carbon Fiber Reinforced Plastic) plate and varying the temperature from 20-60 degree with an increment of 0.5 degree. The signal is recorded for 1300 microseconds, that results in 13000 samples/time stamps(N). Initial results show that the Sakoe-Chiba constraint based DTW performs well and at a significantly lower cost, as indicated below. Result: The largest temporal shift (r) is estimated using Local Peak Coherence (LPC),for signal at 20 and 60 degree r is 135 samples. This results in complexity O(N*2r) which is very less than conventional DTW compensation technique O(N*N). In the final paper, the analysis will be replicated across a range of temperatures, and the performance of damage detection will be thoroughly discussed.

Calibration of discrete element method simulation parameters for lunar rover using simulated lunar soil

Abstract To ensure the accuracy and scientific validity of simulation results in discrete element simulation of simulated lunar soil and sieve wheels for lunar surface probes, a method for calibrating the simulation parameters of an analog lunar soil simulation using a box-Behnken experimental design is proposed. First, the particle model and particle size distribution of the discrete element simulation were calibrated based on the determination of the intrinsic parameters, shape parameters, and particle size parameters of this simulated lunar soil. A Box-Behnken experimental design is employed to conduct response surface simulation experiments for the pile angle, obtaining optimal parameter values. The optimal parameter values are applied in the simulation validation, revealing a relative error of only 3% compared to the actual pile angle. This indicates that the obtained results can serve as calibrated values.

Evaluation of fetal cardiac morphology and function by fetal heart quantification technique in the normal second and third trimesters.

The study of fetal heart is receiving increasing attention. Fetal heart quantification (Fetal HQ) technology is a new speckle tracking technology that can analyze the 24-segment morphology and function of fetal ventricles. This study aims to use Fetal HQ to assess the changes in the structure and function of the fetal heart in normal mid to late pregnancy, providing a foundation for the clinical application of fetal cardiac speckle tracking technology. The heart size, global sphericity index (GSI), left ventricular [stroke volume (SV)], cardiac output (CO), ejection fraction (EF), global longitudinal strain (GLS), fractional area change (FAC), 24-segment end-diastolic diameter (EDD), sphericity index (SI) and fractional shortening (FS) of the two ventricles of 500 normal pregnant fetuses were evaluated by Fetal HQ. The subjects were divided into 5 groups according to gestational weeks (GA), and the changes of fetal heart morphology and function were observed. P<0.05 indicated the statistically significant difference. The fetal heart rate decreased gradually with the increase of GA (P<0.05). The size parameters of the fetal heart and two ventricles gradually increased with increasing GA (P<0.05). The 24 segments EDD of both ventricles increased with increasing GA (P<0.05), while the EDD increased first and then decreased from the ventricle base to the apex. The GSI and the 24 segments SI of two ventricles were basically not significantly different among the groups (P>0.05). The EF, GLS, FAC of the left ventricle and the GLS, FAC of the right ventricle decreased with the increase of GA (P<0.05), and SV and CO increased with increasing GA (P<0.05). The 24 segments FS of the left ventricle showed a downward trend with the increase of GA and gradually increased from the base to the apex. The FS of most segments of the right ventricle decreased with the increase of the GA and increased first and then decreased from the base to the apex. The whole and segmental size parameters of fetal heart can quantitatively evaluate the growth and development of fetal heart; the GSI and segmental SI are reliable morphological indexes for evaluating fetal heart; fetal ventricular function parameters EF, FAC, GLS and segmental FS can evaluate fetal cardiac function. The Fetal HQ technique can help us to evaluate the heart growth and development of normal fetuses in the second and third trimester of pregnancy.

The Efficacy of Ultrasound-Guided Microwave Ablation for Benign Thyroid Nodules and the Correlation Analysis of Its Influencing Factors

Objective: To investigate the efficacy of ultrasound-guided microwave ablation (MWA) for benign thyroid nodules and to analyze the correlation between treatment outcomes and various influencing factors. Methods: 95 patients with pathologically confirmed benign thyroid nodules（ totally 96 nodules) who underwent MWA under ultrasound guidance were enrolled in this retrospective study. Pre-ablation and post-ablation follow-up examinations including two-dimensional ultrasound, color Doppler, and contrast-enhanced ultrasound were conducted at 1, 3, and 6 months. The clinical efficacy was assessed, including the reduction in nodule volume and the success rate of ablation. Factors that might influence treatment outcomes, such as patient age, gender, nodule size, type, and ablation parameters, were analyzed. Statistical correlations were evaluated using Spearman’s correlation coefficient and multiple regression analysis. Results: MWA has demonstrated favorable efficacy in treating benign thyroid nodules, with a low incidence of complications. Most nodules experienced significant volume reduction or even complete disappearance after treatment (P &lt; 0.05). The average volume reduction ratio (VRR) of benign thyroid nodules undergoing MWA at 1 month, 3 months, and 6 months post-operation were 52.98%±22.23%, 68.18%±19.81%, and 82.39%±15.03%, respectively, with a significant reduction rate (VRR &gt; 50%) observed in 95.8% (92/96) of the nodules (VRR &gt; 50%). Cystic nodules exhibited the most substantial volume reduction following ablation. The initial volume of the nodule, blood flow status, nodule composition, and the energy absorption per unit volume were all related to the postoperative VRR (P &lt; 0.05). Factors such as patient age, gender, and ablation duration did not show significant correlation with ablation efficacy (P＞0.05). Conclusion: MWA is a promising minimally invasive treatment for benign thyroid nodules. The treatment efficacy is closely related to the initial volume of the thyroid nodule, the composition of the nodule, the blood flow situation of the nodule, and the ablation energy per unit volume.

The Efficacy of Ultrasound-Guided Microwave Ablation for Benign Thyroid Nodules and the Correlation Analysis of Its Influencing Factors

Objective: To investigate the efficacy of ultrasound-guided microwave ablation (MWA) for benign thyroid nodules and to analyze the correlation between treatment outcomes and various influencing factors. Methods: 95 patients with pathologically confirmed benign thyroid nodules（ totally 96 nodules) who underwent MWA under ultrasound guidance were enrolled in this retrospective study. Pre-ablation and post-ablation follow-up examinations including two-dimensional ultrasound, color Doppler, and contrast-enhanced ultrasound were conducted at 1, 3, and 6 months. The clinical efficacy was assessed, including the reduction in nodule volume and the success rate of ablation. Factors that might influence treatment outcomes, such as patient age, gender, nodule size, type, and ablation parameters, were analyzed. Statistical correlations were evaluated using Spearman’s correlation coefficient and multiple regression analysis. Results: MWA has demonstrated favorable efficacy in treating benign thyroid nodules, with a low incidence of complications. Most nodules experienced significant volume reduction or even complete disappearance after treatment (P &lt; 0.05). The average volume reduction ratio (VRR) of benign thyroid nodules undergoing MWA at 1 month, 3 months, and 6 months post-operation were 52.98%±22.23%, 68.18%±19.81%, and 82.39%±15.03%, respectively, with a significant reduction rate (VRR &gt; 50%) observed in 95.8% (92/96) of the nodules (VRR &gt; 50%). Cystic nodules exhibited the most substantial volume reduction following ablation. The initial volume of the nodule, blood flow status, nodule composition, and the energy absorption per unit volume were all related to the postoperative VRR (P &lt; 0.05). Factors such as patient age, gender, and ablation duration did not show significant correlation with ablation efficacy (P＞0.05). Conclusion: MWA is a promising minimally invasive treatment for benign thyroid nodules. The treatment efficacy is closely related to the initial volume of the thyroid nodule, the composition of the nodule, the blood flow situation of the nodule, and the ablation energy per unit volume.

Application of a Standardized Impact Monitoring Protocol (SIMP) to assess biological weed control projects in the State of Idaho, USA

In the USA, the lack of systematic post-release assessments of weed biological control projects demonstrating quantitative effects of biological control agents on target weed densities, population biology, and/or vegetation responses remain a concern. While there are numerous quantitative assessments, overall conclusions are limited in scope by the spatial scale covered, duration of study, potentially confounding factors, or weed parameters measured. The United States Department of Agriculture’s Animal Plant Health Inspection Service is the regulatory agency responsible for biological control agent releases. USDA APHIS requires post-release impact monitoring of target weed populations as part of release permits issued for new biological control agents. However, large scale, long-term impact assessments are rarely conducted for a variety of reasons. To address this problem, biocontrol practitioners developed a standardized impact monitoring protocol (SIMP) for the State of Idaho in 2007. The intent was to collect ecological data which are sufficiently robust for quantitative analysis, while minimizing time spent in the field to make data collection appealing to citizen scientists and land managers. SIMP has since been implemented for ten weed biocontrol systems, with more than fifteen years of monitoring data for some systems. SIMP data are collected along permanent transects and include weed density and size parameters, categorical vegetation community and biocontrol agent abundance data. Data are repeated measures, which are well suited for dynamic population modeling and can be coupled with environmental factors (e.g., climate or soil data) to analyze how processes like climate (and climate change) can drive variation in weed biocontrol agent interactions. SIMP data can be combined with detailed weed, nontarget plant and/or biocontrol agent surveys to add analytical data. Finally, SIMP has also been implemented for two weeds for which biological control agents have not yet been introduced to provide weed and community vegetation data prior to releases.

Chemically reactive and aging macromolecular mixtures. I. Phase diagrams, spinodals, and gelation

Multicomponent macromolecular mixtures often form higher-order structures, which may display non-ideal mixing and aging behaviors. In this work, we first propose a minimal model of a quaternary system that takes into account the formation of a complex via a chemical reaction involving two macromolecular species; the complex may then phase separate from the buffer and undergo a further transition into a gel-like state. We subsequently investigate how physical parameters such as molecular size, stoichiometric coefficients, equilibrium constants, and interaction parameters affect the phase behavior of the mixture and its propensity to undergo aging via gelation. In addition, we analyze the thermodynamic stability of the system and identify the spinodal regions and their overlap with gelation boundaries. The approach developed in this work can be readily generalized to study systems with an arbitrary number of components. More broadly, it provides a physically based starting point for the investigation of the kinetics of the coupled complex formation, phase separation, and gelation processes in spatially extended systems.

Versatile Nanoring Fabrication Assisted by Hole-mask Colloidal Lithography.

Nanomaterials shaped as rings are interesting nanostructures with control of the materials properties at the nanoscale. Nanoring plasmonic resonators provide tunable optical resonances in the near-infrared with application in sensing. Fabrication of nanorings can be carried out via top-down approaches based on electron beam lithography with high control of the ring size parameters but at high cost. Alternatively, fabrication via self-assembly approaches has a higher speed/lower cost but at the cost of control of ring parameters. Current colloidal lithography approaches can provide nanoring fabrication over large areas but only of specific materials and a select set of rings (large ring diameters or small rings with ultrathin walls). We extend Hole-mask Colloidal Lithography to use ring shaped holes, allow the deposition of arbitrary materials, and allow the independent tuning of ring-wall thickness over a large range of values. We present a generic approach for the fabrication of nanorings formed from a range of materials including low cost (e.g., Cu, Al) and nonplasmonic (e.g., W) materials and with control of ring wall thickness and diameter allowing tuning of ring parameters and materials for applications in nanooptics and beyond.

On the reusable compressive behavior of multi-directional auxetic origami metamaterials

Origami metamaterials exhibit abnormal mechanical properties through artful structural design. To further explore the mechanical behavior of reentrant metamaterials, a multi-directional auxetic origami metamaterial (AOMM) was designed, and its negative Poisson’s ratio effect was analyzed through the diagram of load bearing and deformation. Theoretical models related to geometric parameters, relative density, folding rate, equivalent elasticity and load plateau were established to reveal the deformation transformation mechanism, and the influence of size parameters on the equivalent elastic constants was drawn. Using thermoplastic polyurethane (TPU) as the substrate, two types of multi-directional AOMMs were fabricated by 3D printing, and quasi-static compression experiments were performed. The results show that the TPU AOMMs has a reusable compressive capacity, whose compressive mechanical behaviors are mainly contributed by the buckling instability and large deformation of sidewall. There is a coupling effect between the cross connection boundaries, which results in the difference in mechanical properties of AOMM with different geometric sizes. The prediction results of relative density, load plateau and yield strain through equivalent theories approximate that of experimental results. Simultaneously, finite element analyses were conducted, which agrees well with the experiments. These foundings may provide reference for the design and application of novel auxetic or origami metamaterials.

3D printing technology for the design of eco-friendly palisade solar evaporators for enhanced desalination and wastewater treatment

Solar-driven desalination represents a promising solution to the global water scarcity challenge, offering a sustainable and efficient method for water purification. However, traditional solar evaporation techniques face several hurdles, including prohibitive costs, intricate fabrication processes, and suboptimal solar-to-thermal energy conversion efficiencies. Addressing these issues, our study introduces an innovative, low-cost, and high-efficiency palisade solar evaporator, created using a one-step fused deposition modeling (FDM) 3D printing process. This method requires only a straightforward hot water treatment for post-fabrication conditioning, avoiding the need for complex preparations or modifications. The evaporators are very eco-friendly, as they are printed using commercial and biodegradable polylactic acid (PLA) containing carbon fibers. The structural parameters of palisade solar evaporators, including height and gap size, were well optimized. The palisade solar evaporator with height of 18 mm and gap width of 0.6 mm exhibits a solar-driven water evaporation rate of 2.52 kg m−2 h−1 under one sun illumination. Moreover, the device demonstrates exceptional salt resistance, maintaining its efficiency without salt buildup or performance degradation over prolonged use. This investigation validates the feasibility of utilizing commercial and biodegradable PLA in 3D printing to develop cost-effective, eco-conscious, and efficient solar evaporators for desalination and wastewater treatment.

Scattering of vector Lommel beam by spherical particle in generalized Lorenz–Mie theory

Scattering of vector Lommel beam by spherical particle in generalized Lorenz–Mie theory

Electromagnetic Design and Analysis of a Stator–Magnet Transverse Flux Linear Oscillatory Machine with Yokeless Mover Core

Conventional stator–magnet moving−iron transverse−flux linear oscillatory machines (CSMTLOMs) are widely applied in directly−drive reciprocating devices due to the merits of easy fabrication and robust mover. However, in order to keep the mover vibrating at a certain resonance frequency to save the energy and enlarge the output power, they still suffer from a higher requirement on spring stiffness due to their thick and heavy mover core, which would also narrow the frequency band with a high power factor due to the large inertial energy storage of the heavy mover. Hence, to reduce the mover core weight to reduce the demand of the spring and improve the operation performance, an improved linear oscillatory machine featured by a spoke−type interior permanent magnet inner stator (ISMTLOM) is proposed. Benefiting from its separated two stators, the tangential flux in the radial plane can return through the inner stator core, so that the yoke of the mover core can be eliminated directly. Then, to analytically investigate the influence of the special axial local saturation effect, the segmental equivalent magnetic circuit (EMC) model of the ISMTLOM is established, wherein a saturation coefficient is introduced to quantitatively consider the local saturation effect on the output force. Consequently, several important size parameters are optimally selected when keeping the same outer diameter and copper loss as that of the CSMTLOM. Afterward, the three−dimension finite element algorithm (3D FEA) is adopted for the electromagnetic performance validation and comparison. Finally, it is found that the nonlinear segmental EMC corrected by the saturation coefficient can quickly predict the output force more accurately within the wide load range, and benefiting from the topology improvement, the ISMTLOM has the merits over the CSMTLOM in its smoother output force, much lighter mover core, and less demand of mechanical spring stiffness, whilst preserving the similar output force density.

Dark-matter-free Dwarf Galaxy Formation at the Tips of the Tentacles of Jellyfish Galaxies

When falling into a galaxy cluster, galaxies experience a loss of gas due to ram pressure stripping. In particular, disk galaxies lose gas from their disks, and very large tentacles of gas can be formed. Because of the morphology of these stripped galaxies, they have been referred to as jellyfish galaxies. It has been found that star formation is triggered not only in the disk, but also in the tentacles of such jellyfish galaxies. The observed star-forming regions located in the tentacles of those galaxies have been found to be as massive as 3 × 107 M ⊙ and with sizes >100 pc. Interestingly, these parameters in mass and size agree with those of dwarf galaxies. In this work, we make use of the state-of-the-art magnetohydrodynamic (MHD) cosmological simulation IllustrisTNG-50 to study massive jellyfish galaxies with long tentacles. We find that, in the tentacles of TNG-50 jellyfish galaxies, the star formation regions (gas+stars) formed could be as massive as ∼2 × 108 M ⊙. A particular star-forming region was analyzed. This region has a star formation rate of 0.04 M ⊙ yr−1, it is metal-rich, has an average age of 0.46 Gyr, and has a half-mass radius of ∼1 kpc, typical of standard dwarf galaxies. Most importantly, this region is gravitationally self-bound. Overall, we identify a new type of dwarf galaxy being born from the gas tentacles of jellyfish galaxies that, by construction, lacks a dark matter halo.

Gold Nanostructures for an Effective Bone Cancer Therapy: Numerical Simulation and Experimental Investigation

AbstractGold nanostructures play a crucial role in medical applications, harnessing size and shape‐dependent properties. A prominent area of research is cancer treatment through the photothermal approach. Here, numerical simulation is explored to study the impact of gold nanostructure size, shape, and laser parameters on spatiotemporal temperature patterns during photothermal therapy (PTT). Spherical, rod, star, bipyramid, and cubic nanostructures in small, medium, and large sizes underwent 150 s of laser irradiation. COMSOL software, incorporating bioheat physics, precisely gauged thermal variations. The structural characteristics notably influence the temperature profiles, with medium‐sized rod, star, and bipyramid gold nanoparticles exhibiting superior thermal properties. Experimental validation of simulations focuses on the optimal nanostructure, synthesizing through the seed growth method. Transmission electron microscopy, UV‐visible spectroscopy, and X‐ray diffraction analysis confirm its proposed characteristics. Results demonstrate a robust correlation between experimental and simulation parameters, affirming precision. Findings showcase photothermal properties in line with theoretical predictions. The aim of this study is to determine the optimal gold nanostructure for bone cancer treatment using PTT, addressing the challenges presented by the dense and resilient nature of bone tissue and deep tumor locations. By utilizing multi‐physical modeling and simulations facilitated by COMSOL software, a novel method for pre‐clinical estimation is introduced. This research provides insights into each nanoparticle‐based PTT process prior to ex vivo and in vivo studies, offering a comprehensive understanding of the interplay between nanostructure characteristics and PTT outcomes. The approach contributes to advancing the field of cancer treatment by enhancing the predictability and effectiveness of nanoparticle‐mediated PTT.

Refractometric method to study the coating thickness of diamond nanoparticles

A method based on refractometric measurements of liquid nanodisperse systems has been developed to determine the quantitative composition of diamond-amorphous carbon colloidal particles. It was demonstrated that by measuring the changes in the refractive index and density of sols caused by changes in particle concentration it is possible to determine the thickness of the particle surface layer, assuming its composition is known. Within the framework of the Mie theory, the influence of the size of diamond particles with carbon coating on the refractive index of hydrosols was quantified. The limits of applicability of the developed method have been determined. For several polydisperse sols with coated diamond particles the thickness of carbon coating was determined.

Influence of PCHE size and types on thermodynamic and economic performance of supercritical carbon dioxide Brayton cycle for small modular reactors and its optimization

The supercritical CO2 Brayton cycle is a potential technology in small modular reactors (SMRs), and the overall system efficiency can be significantly improved by optimizing the PCHE design parameters. This study develops a thermodynamic-economic analysis model for a supercritical CO2 simple Brayton cycle cooled SMR, with consideration of the detailed parameters of PCHEs. The impact of the length, channel number and channel type for the recuperator and the precooler on system thermal efficiency and levelized cost of electricity (LCOE) are analyzed. A dual-objective optimization study is conducted at the system level to identify the optimal design of size parameters and types for the heat exchangers. The results indicate that the influence of PCHE size parameters variations on system performance varies across different channel types. Additionally, the selection of the recommended recuperator type is influenced by the recuperator inlet Reynolds number. At the optimum design, the recommended channel type for recuperator and precooler are both S-shaped, resulting in a system efficiency of 39.12% and LCOE of 0.0456 $/kWe. The findings are valuable for enhancing energy utilization and reducing the power generation cost of SMRs.

Electrochemical, magnetic and heterostructure of Y-SnO2-CdO nanocomposite for multi-functional applications

We prepared the novel materials of Y-doped SnO2-CdO nanocomposite, Y-SnO2 and CdO nanoparticles by a facile chemical technique. Structural, crystallite size and lattice parameters are investigated by XRD spectrometer. The morphologies show highly aggregated due to tiny particles of Y3+, Sn4+ and Cd2+ were present in nanocomposite were analyzed by HR-TEM. The presence of a functional group of elements was identified by FT – IR spectrometer. The X-ray photoelectron spectroscopy (XPS) is used to analyze the ionization state of elements, composition and purity of the nanocomposite. Optical properties such as lower absorption edge, widened band gap and particle size were studied by UV – visible spectrometer and Photo luminescence (PL) was used to determine the violet emission of nanocomposite. At room temperature, ferromagnetism was obtained in the nanocomposite was studied by VSM. From Cyclic-Voltammetry (CV), the nanocomposite has behave as pseudocapacitance that occurs in the potential range between – 0.7 V to 0.5 V. Electrochemical impedance spectroscopy (EIS) was investigated for impedance, dielectric, electric modules and a.c conductivity of nanocomposite. Because of its optical, magnetic, and electrochemical characteristics, the Y-SnO2-CdO nanocomposite is therefore ideally suited for a variety of possible multifunctional applications.