Horizontal Disc Research Articles

RESULTS OF THE TECHNICAL INSPECTION OF A MULTI-STORY RESIDENTIAL BUILDING DAMAGED AS A RESULT OF A ROCKET IMPACT

The article presents the results of the examination of the technical condition of part of the construction structures of the building damaged as a result of a missile strike, the determination of the characteristics and classification of their defects and damage, the provision of conclusions and recommendations regarding the correction of the life cycle and further safe and reliable operation of the building. As part of the study, the object of the survey was a monolithic 22-story residential building with a basement (ATP) floor and a complex configuration in plan. The structural scheme of the complex is a monolithic reinforced concrete frame with stiffening cores. The stability and rigidity of the frame is ensured by diaphragms of stiffness in the form of reinforced concrete walls, elevator-stair nodes and rigid nodes connecting pylons and horizontal disks of monolithic reinforced concrete floor slabs. During the examination, visual and instrumental methods of research were performed. Before the field work, measures were taken to collect design and archival information about the research object. Instrumental studies to determine the actual concrete strength of reinforced concrete frame elements and to determine the diameter, protective layer and pitch of the working rods of the reinforcing frames of the load-bearing elements were carried out by non-destructive methods. The calculation model of the spatial scheme of the structure of the frame of the residential building, taking into account the damage, was made in the subsystem (PS) "COMPOSITION" of the software complex (PC) "MONOMAH CAD". The result of the survey is conclusions and recommendations, which indicate the specifics of damage and types of defects, destruction and debris in various structural elements that were discovered during the survey. The general technical condition of the residential building is classified as emergency. As for the recommendations, two options for carrying out repair and restoration works were provided. The first option is to restore the plan-elevation position of the building, the design marks of vertical and horizontal structures and the unloading of overloaded structures, to be performed with the help of an automatic hydraulic complex. The second option is the arrangement of temporary strengthening of emergency structures with the help of a metal space frame, without restoring the planned height position of the residential building.

Myopia and Other Refractive Error and Their Relationships to Glaucoma Screening.

A large disk, a large parapapillary delta zone and a long axial length may be used as screening criteria to detect glaucomatous optic neuropathy in highly myopic eyes. To describe aspects for screening of glaucomatous optic neuropathy in dependence of refractive error, under special consideration of high myopia. Studies on the anatomy of the myopic optic nerve head and results of investigations on the relationship between glaucomatous optic neuropathy and axial myopia were included. In the range from hyperopia to moderate myopia, refractive error is not a strong glaucoma risk factor and may not be included in glaucoma screening strategies. Care should be taken, that in moderate myopia, a shift of Bruch´s membrane opening usually into the temporal direction leads to parapapillary gamma zone and a corresponding shortening of the horizontal disk diameter. In these moderately myopic eyes, a secondarily small optic disk with a correspondingly small optic cup should not lead to an overlooking of intrapapillary glaucomatous changes. Prevalence of glaucomatous or glaucoma-like optic nerve atrophy (GOA) steeply increases with longer axial length in highly myopic eyes (cutoff approximately -8 diopters/axial length 26.5mm), with prevalences higher than 50% in extremely high myopia. Besides longer axial length, morphological parameters associated with GOA in highly myopic eyes are a secondarily enlarged disk and large parapapillary delta zone. Both parameters, together with long axial length, may be used as screening criteria in high myopia for GOA. The latter is characterized by an abnormal neuroretinal rim shape, that is, vessel kinking close to the intrapapillary disk border. Factors associated with nonglaucomatous optic neuropathy are larger gamma zone and longer axial length, potentially due to an axial elongation-related retinal nerve fiber stretching.

Linear stability analysis of a droplet under an axisymmetric thermal gradient

We study the linear stability of a droplet placed at the center of a horizontal disk under the effect of surface stress promoted by an axisymmetric thermal gradient. Since the fluid volume is constant, we solve the non-steady base flow and the perturbation simultaneously as they evolve over time. The numerical results show that the base state migrates from a droplet to a ring shape, with the front position and maximum thickness following power laws with time. The perturbations travel with the same velocity as the advancing front and develop their maxima close to the contact line. All of them initially decrease their amplitudes, later showing an increment with the growth rates depending on the wavenumber and time. The dominant wavenumber increases with time, in agreement with recent experimental work.

Effects of titanium (Ti) contents on the wear resistance of low-alloy steel alloys

In this study, the impact of titanium (Ti) on low-alloy steel alloys is examined, focusing on the mechanical properties of the alloy with varying Ti content levels. Heat treatment was conducted to enhance the mechanical properties and performance indicators of the casting samples. The elemental volume distribution mapping and microstructure analysis of the research samples were performed using SEM - Carl Zeiss Ultra Plus Field Emission. Subsequently, the hardness and wear resistance characteristics of samples containing Ti contents of 0, 0.1, 0.3, 0.5, 0.8, and 1.1 were evaluated post heat treatment. Notably, steel samples containing 0.3% and 0.5% Ti, exhibiting structures of ferrite, martensite, and limited bainite, demonstrated superior hardness and wear resistance properties. Abrasive wear resistance tests were conducted using a specialized device with a horizontal diamond disc. The primary objective of this research is to introduce the developed technology for the rolling mill rolls at a prominent metal manufacturing enterprise in the republic, resulting in enhanced economic efficiency through increased production volume. Consequently, achieving a hardness of HB 323 and improving wear resistance by 1.2 times were notable outcomes of the study.

Clinical and histological characteristics of axial myopia

Myopic axial elongation is associated with various non‐pathological changes. These include a decrease in photoreceptor cell and retinal pigment epithelium (RPE) cell density and retinal layer thickness, mainly in the retro‐equatorial to equatorial regions; choroidal and scleral thinning pronounced at the posterior pole and least marked at the ora serrata; and a shift in Bruch's membrane opening (BMO) occurring in moderately myopic eyes and typically in the temporal/inferior direction. The BMO shift leads to an overhang of Bruch's membrane (BM) into the nasal intrapapillary compartment and BM absence in the temporal region (i.e., parapapillary gamma zone), optic disc ovalization due to shortening of the ophthalmoscopically visible horizontal disc diameter, fovea–optic disc distance elongation, reduction in angle kappa, and straightening/stretching of the papillomacular retinal blood vessels and retinal nerve fibres. Highly myopic eyes additionally show an enlargement of all layers of the optic nerve canal, elongation and thinning of the lamina cribrosa, peripapillary scleral flange (i.e., parapapillary delta zone) and peripapillary choroidal border tissue, and development of circular parapapillary beta, gamma, and delta zone. Pathological features of high myopia include development of macular linear RPE defects (lacquer cracks), which widen to round RPE defects (patchy atrophies) with central BM defects, macular neovascularization, myopic macular retinoschisis, and glaucomatous/glaucoma‐like and non‐glaucomatous optic neuropathy. BM thickness is unrelated to axial length. Including the change in eye shape from a sphere in emmetropia to a prolate (rotational) ellipsoid in myopia, the features may be explained by a primary BM enlargement in the retro‐equatorial/equatorial region leading to axial elongation.

Modeling of the Flow due to Double Rotations Causing Phenomenon of Negative Pressure

This paper is devoted to mathematical modeling and computational experiments of a flow with negative pressure. A previously unknown class of fluid flow under the action of counter-current centrifugal forces is in focus. Volumetric forces in a non-conducting fluid can arise from gravity, vibrations, or rotations. In this paper, we consider controlled variable volumetric forces in a system with two rotations around the vertical axis and the tangential axis of a horizontal disk rotating around the vertical axis. The study of the coordinate system during double rotation showed that the double rotation about two perpendicular axes, one of which moves along a tangential direction to the rotating horizontal disk, is equal to the rotation around the oscillating axis inclined at some angle to the vertical axis.

Myopia: Histology, clinical features, and potential implications for the etiology of axial elongation.

Myopic axial elongation is associated with various non-pathological changes. These include a decrease in photoreceptor cell and retinal pigment epithelium (RPE) cell density and retinal layer thickness, mainly in the retro-equatorial to equatorial regions; choroidal and scleral thinning pronounced at the posterior pole and least marked at the ora serrata; and a shift in Bruch's membrane opening (BMO) occurring in moderately myopic eyes and typically in the temporal/inferior direction. The BMO shift leads to an overhang of Bruch's membrane (BM) into the nasal intrapapillary compartment and BM absence in the temporal region (i.e., parapapillary gamma zone), optic disc ovalization due to shortening of the ophthalmoscopically visible horizontal disc diameter, fovea-optic disc distance elongation, reduction in angle kappa, and straightening/stretching of the papillomacular retinal blood vessels and retinal nerve fibers. Highly myopic eyes additionally show an enlargement of all layers of the optic nerve canal, elongation and thinning of the lamina cribrosa, peripapillary scleral flange (i.e., parapapillary delta zone) and peripapillary choroidal border tissue, and development of circular parapapillary beta, gamma, and delta zone. Pathological features of high myopia include development of macular linear RPE defects (lacquer cracks), which widen to round RPE defects (patchy atrophies) with central BM defects, macular neovascularization, myopic macular retinoschisis, and glaucomatous/glaucoma-like and non-glaucomatous optic neuropathy. BM thickness is unrelated to axial length. Including the change in eye shape from a sphere in emmetropia to a prolate (rotational) ellipsoid in myopia, the features may be explained by a primary BM enlargement in the retro-equatorial/equatorial region leading to axial elongation.

Natural convective heat transfer from a heated horizontal disc with heated hollow cylinders: Effect of flow characteristics around heated cylinders with a gap

The natural convective heat transfer from a heated horizontal disc with gapped heated hollow cylinders was investigated experimentally, forming the foundation for improving the cooling performance of the heat sinks. The cooling target for this study was the central area of the heated horizontal disc where the heat dissipation was low. The heat transfer was greatly enhanced by the reversal of the flow from the gap between the heated hollow cylinders towards the heated horizontal disc. The reverse flow was promoted by the conditions of a narrow clearance between the heated horizontal disc and the heated hollow cylinder and a wide gap between the heated hollow cylinders. Conversely, for the flow along the heated horizontal disc, the heat transfer showed improvement by increasing the clearance between the heated horizontal disc and the heated hollow cylinder. The relationship between the heat transfer and flow properties was demonstrated using the Nusselt number of the heated horizontal disc and the Rayleigh number corrected for the ratio of the heated hollow cylinder height to the clearance between the heated horizontal disc and the heated hollow cylinder.

Quantitative Evaluation of Progression of Retinal Vascularization After 60 Weeks Postmenstrual Age in Infants Treated With Bevacizumab.

To investigate the progression of retinal vascularization after 60 weeks postmenstrual age (PMA) in eyes treated with intravitreal bevacizumab (IVB). Twenty-seven eyes that were treated with IVB and underwent two consecutive fluorescein angiographies (FA) after 60 weeks PMA. Horizontal disc diameter (DD), disc-to-fovea (DF) distance, and length of temporal retinal vascularization (LTRV) were measured in pixels on the two consecutive angiograms. Mean age at first and final FA sessions were 77.7 ± 15.7 and 168.0 ± 49.0 weeks PMA, respectively. The DF/DD ratio was 3.30 ± 0.46 and 3.16 ± 0.46 in the first and final FAs (P = 0.001), respectively. The LTRV/DD ratio was 13.38 ± 2.12 and 13.15 ± 2.13 in the first and final FAs (P = 0.027), respectively. The LTRV/DF ratio was 4.06 ± 0.39 and 4.17 ± 0.42, respectively (P = 0.032). Temporal retinal vascularization did not progress despite an average follow-up of 90 weeks in pixel units and DD. [Ophthalmic Surg Lasers Imaging Retina 2023;54:417-424.].

Extensive Horizontal Optic Disc Cupping as a Sign of Chiasmal Hypoplasia

Extensive Horizontal Optic Disc Cupping as a Sign of Chiasmal Hypoplasia

Comparison of optic disc head vascular density status between crowded and normal discs: An optical coherence tomography angiography study.

To compare the optic disc capillary vascular status between crowded and normal optic discs using optical coherence tomography angiography (OCT-A). A total of 101 eyes were included in this cross-sectional, comparative study. Fifty-one eyes with crowded optic discs (Group 1) were compared with 50 eyes with normal discs (Group 2). Peripapillary and optic disc head capillary vascular density measurements were obtained quantitatively with OCT-A. Mean ages were 46.2±6.2 years in Group1 and 45.9±6.0 years in Group2 (p=0.796).Vertical disc diameters were 1.52±0.2mm in Group 1 and 1.61±0.16mm in Group 2 (p=0.022) whereas horizontal disc diameters were 1.53±0.17mm in Group 1 and 1.61±0.13mm in Group 2(p˂0.014). OCT-A findings were as follows: radial peripapillary capillary, vascular density whole image measurements (%); 49.6±2.3 in Group 1 and 49.1±2.3 in Group 2 (p=0.292), peripapillary capillary density; 53.3±2.8 in Group 1 and 52.6±2.6 in Group 2 (p=0.176), inside disc measurements 52.4 (48.7-54.7) in Group 1 and 46.5 (42.6-49.6) in Group 2 (p˂0.001). RNFL was 118.2±12.2µm in Group 1 and 110.8±11.4µm in Group 2(p=0.002). The vascular density of the disc circumference in individuals with healthy crowded optic discs is not different from those with normal discs. However, inside disc measurements differ between crowded and normal size discs. This finding suggests that when the disc size is reduced, the amount of vessels in it does not decrease in a way that correlates with the size. Therefore, the vascular structures are suitable for compression in the narrow optic nerve head.

Anatomic Peculiarities Associated with Axial Elongation of the Myopic Eye.

To describe anatomical peculiarities associated with axial elongation in the human myopic eye. Reviewing the results of previous histomorphometrical investigations of enucleated human globes, as well as reviewing findings obtained in population-based studies and hospital-based clinical investigations of myopic patients and non-myopic individuals. Myopic axial elongation is associated with a change from a mostly spherical eye shape to a prolate ellipsoid form. It is combined with choroidal and scleral thinning, most pronounced at the posterior pole and less pronounced in the fundus midperiphery. In the fundus midperiphery, the retina and density of the retinal pigment epithelium (RPE) and photoreceptors decrease with a longer axial length, while in the macular region, retinal thickness, RPE cell density, and choriocapillaris thickness are not related to axial length. With axial elongation, a parapapillary gamma zone develops, leading to an enlargement of the optic disc-fovea distance and a decrease in angle kappa. Axial elongation is also correlated with an increase in the surface and volume of Bruch's membrane (BM), while BM thickness remains unchanged. Axial elongation causes moderately myopic eyes to show a shift of BM opening to the foveal direction so that the horizontal disc diameter becomes shorter (with a consequent vertical ovalization of the optic disc shape), a temporal gamma zone develops, and the optic nerve exit takes an oblique course. Features of high myopia are an enlargement of the RPE opening (myopic parapapillary beta zone) and BM opening (secondary macrodisc), elongation and thinning of the lamina cribrosa, peripapillary scleral flange (parapapillary delta zone) and peripapillary choroidal border tissue, secondary BM defects in the macular region, myopic maculoschisis, macular neovascularization, and cobblestones in the fundus periphery. These features combined may be explained by a growth in BM in the fundus midperiphery leading to axial elongation.

Field-synergy and nanoparticle’s diameter analysis on circular jet impingement using three oxide–water-based nanofluids

The field synergy study is carried out using three oxide nanofluids impinging circular jet on the horizontal circular disc to analyse the synergetic interaction of cooling processes between temperature and flows fields. The h eat transfer effect o f the nanofluid is examined by rising the Reynolds number and the nanoparticle concentration depending on field synergy number. For jet impinged cooling process, the scale of synergy between the nanofluid flow speed and temperature is decayed with the increase of Reynolds number. Hence, it is contributed to a lower heat transfer efficiency of the nanofluid. Whe reas, the scale of synergy between the nanofluid flow speed and temperature can be enhanced by rising the particle concentration. Thus, the heat transfer efficiency of the nanofluid is increased. Analysis showed that Al2O3 nanofluid has the maximum relative field synergy among selected three oxide nanofluids. It is evident that the nanoparticle concentration, nanoparticle material and Reynolds number have significant effect on the heat transfer augmentation. In addition, the study is explored by varying jet-disk spacing. Moreover, the investigation has shown that the reducing heat transfer effect for the materials is Al2O3, CuO and TiO2 subsequently. It is revealed that the heat enhancement is higher for smaller nanoparticle’s diameter (i.e., 20 nm) than bigger nanoparticle’s diameter (i.e., 80 nm) of the same material.

Wave interaction with an elliptic disc submerged in a two-layer fluid

Wave interaction with a horizontal elliptic disc submerged in a two-layer fluid is studied here assuming linear theory. An elliptic coordinate system is used to solve the three-dimensional problem analytically. The fluid region is divided into a number of subregions and by means of separation of variables, velocity potential in each region is expressed in terms of series of Mathieu and modified Mathieu functions of real argument. Matching conditions along with the orthogonal properties of eigenfunctions provide solutions for the fluid velocity potentials. Numerical results are presented for the wave-induced forces and moments. The effect of variations in the depth of submergence of the disc, angle of incidence of the incoming wave, density ratio of the fluid and aspect ratio of the disc on these physical quantities have been analyzed. In particular, sudden amplification of forces and moments have been observed at certain frequencies when the disc is situated at close proximity to the interface. Various other behaviors of the solution are investigated in some detail.

STUDY OF THE MOVEMENT OF A MATERIAL PARTICLE ON A FLAT DISK ROTATING AROUND A PERPENDICULAR AXIS INCLINED TO THE HORIZON

The movement of material particles along rotational planes is complex, since it should be considered as the result of the movement of the plane itself and the particle along this plane. The task becomes more difficult if the moving plane is inclined at a certain angle to the horizon. Its solution makes it possible to find out the regularities of the movement of a particle along an inclined plane, which rotates around an axis perpendicular to it. The purpose of the study is to establish the patterns of movement of material particles on a flat disc with and without blades, which rotates around a perpendicular axis inclined to the horizon. If a round disk rotating around an axis perpendicular to it is located horizontally, then the kinematic parameters of the particle's motion on it do not depend on the point of impact of the particle on the disk. If the disk is tilted at a certain angle β to the horizon, it is obvious that the absolute trajectories of the particle's movement and other parameters of the movement will not be the same and will depend on the sector of the disk from which the particle starts its movement. The relative and absolute motion of a particle on an inclined disk with and without rectilinear blades is considered. A system of differential equations of particle motion has been compiled using the accompanying trihedron of the transfer trajectory, which is a circle, and Frenet's formulas. Numerical integration of the system was carried out. The obtained results were visualized. It was established that when particles hit an inclined disk that rotates around its own axis, the absolute trajectories of motion differ significantly from the trajectories of motion along a horizontal disk, and the difference in trajectories increases with an increase in the angle of inclination β. If rectilinear vanes are installed on the disc in the radial direction, the difference between the particle motion parameters will increase insignificantly as the angle β increases. When increasing the angular speed of rotation of the disk at a given angle, the shape of the absolute trajectories of particle motion practically does not change, but they are different depending on the point of impact on the disk. There is a certain area of impact and a certain sector of trajectories, after passing which the particle flies up after leaving the disc. Among this set, it is possible to analytically find the point of impact and the corresponding trajectory, which provide the maximum angle of elevation of the particle (equal to the angle β).

РАЗРАБОТКА АЛГОРИТМА ОПРЕДЕЛЕНИЯ КИНИМАТИЧЕСКИХ ПАРАМЕТРОВ РЕАКТИВНОГО СОПРОТИВЛЕНИЯ ЗДАНИЙ И СООРУЖЕНИЙ ОТ ДИНАМИЧЕСКИХ ВОЗДЕЙСТВИЙ

A priori, both buildings and structures under construction and in operation throughout all life cycles are subjected to various external and internal static, dynamic and other types of impacts. Wind loads play a special role and share of dynamic impacts, the force effect of which, their modules, impact lines and application points are difficult to predict. Nevertheless, such impacts obviously cause kinematic movements with complex trajectories of individual components of buildings and structures, their individual structural elements with different amplitude and frequency. The paper develops an algorithm for finding the kinematic parameters of these structural elements, their speeds and accelerations, which can subsequently be used in digital "BIM" models of buildings. Conceptually, the buildings and structures under consideration were virtually subjected to horizontal high-rise "expansion" during the study by a set of separate material points of the corresponding structural elements in the form of horizontal disks, or separate material points of a set of structural elements performing complex kinematic trajectories as a result of external influences. The algorithm uses definitions given by L. Euler, such as precession angles, nutation angles and angles of proper rotation.

Thermal performance of chemically reactive transient thin film flow of Maxwell nanofluid with activation energy: novel computational intelligent networks

The present study is based on a novel application of computational intelligent heuristics based on backpropagated Levenberg–Marquardt neural networks (BLM-NNs) to numerically investigate the transient-thin-film flow of chemically reactive Maxwell nanofluid (TTFFCRMN) with radiation (nonlinear), magnetic field and Joule heating over a horizontal disk with rotating effect, by utilizing the Buongiorno model of nanofluid. The partial differential equations of physical problem problem, are reduced to ODEs by exploiting the notion of Boussinesq approximations. The data set is generated by the Adams numerical method for proposed computational technique in case of the variants, Debora number, unsteadiness, rotation, nonlinear radiation, reaction rate and activation energy parameters. The strength of the proposed computational intelligent solver is incorporated by performing training, testing and validation, to solve the considered fluid model for various scenarios. The precision of the proposed numerical technique is verified by comparison with standard solution of the problem through graphical outcomes of error analysis, regression analysis and histograms. Moreover, higher radial velocity is observed for higher unsteadiness parameter; higher radiation parameter enhances temperature profile and decaying nanoparticles concentration profile is observed for higher reaction rate parameter.

Establishment of a new horizontal casting device and evaluation system for characterizing the homogeneity of food soft matter solution

A non-destructive dynamic solution casting device with in-situ roundness calculation for evaluating the homogeneity of food soft matter solutions is designed. The Charge-Coupled Devices (CCD) camera takes pictures of solution casting while the roundness is calculated by image software. Homogeneous single-component solutions were casting on a horizontal casting disc. The optimal combination of device hardware was obtained as the overflow hole diameter of 4 mm, overflow hole depth of 2 mm, injection tube diameter of 2 mm and injection height of 8 mm. The volume of sample solution was determined as 50 mL, and the relative roundness error of casting solution could be controlled below 0.25% when casting on a 304 stainless steel disc polished by 7000 Cw sandpaper. Finally, solutions with different viscosities must be casting with casting tubes of different diameters was proved. This work provides fundamental information for future analyses of the compatibility of food soft matter solutions.

Quantitative vascular outgrowth and anatomic and refractive outcomes of eyes treated with bevacizumab in posterior zone Ⅰ.

To report the anatomic and refractive outcomes and retinal vascular outgrowth in eyes with posterior zone Ⅰ retinopathy of prematurity (ROP) treated with intravitreal bevacizumab (IVB). Thirty-eight eyes of 21 infants treated with IVB for type 1 and aggressive-ROP, and whose posterior border of retinal vascularization was shorter than the optic disc-to-fovea distance were defined as posterior zone Ⅰ and included in the study. Nine eyes of five infants whose follow-up time was lower than four months were accepted as insufficient for clinical outcomes. Additional treatment(s) had been performed up to 60 weeks postmenstrual age (PMA) in 10 of 29 eyes whose follow-up were higher than four months. Macula was attached at the final examination in all eyes with > 4 months follow-up. Anatomical outcome of two eyes of one infant was accepted as unfavorable whose routine follow-up was interrupted after successful initial treatment and who was presented with straightening of the temporal vascular arcade and residual fibrovascular tractional bands on the temporal periphery. The mean progression of temporal retinal vascularization was 3.6 ± 2.0 horizontal disc diameters (DD) within 7.3 weeks and 5.1 ± 2.5 horizontal DD within 69.1 weeks in the short-term (n=15) and long-term evaluated eyes (n=21), respectively. The mean spherical equivalent was -4.1 diopters at a mean age of 21 months (n=28). A favorable outcome had been achieved in almost all bevacizumab-treated eyes, but additional treatments were required. Significant progression of retinal vascularization was detected even in the eyes with short follow-up.

Magnetized squeezing nanofluid flow with viscous heating and Robin boundary conditions: A Buongiorno nanofluid model

The flow of fluid that occurs when two parallel disks are squeezed together has applications in compression, the processing of polymers, the production of plastics, injection modeling, and lubrication systems. In this paper, the unsteady squeezing flow and heat transport of nanoliquid that is subjected to convective thermal boundary conditions and viscous heating have been studied numerically. This study was inspired by the exploration of the thermophysical properties of magnetic nanoparticles in squeezing tribology. The flow between two horizontal parallel disks is accounted for where the upper disk is non-static when the lower disk is fixed. The powerful Runge–Kutta method-based shooting scheme is utilized to solve the assumed problem. The influence of pertinent key parameters on involved fields is visualized graphically and scrutinized. It is exhibited that the haphazard motion of NPs contributes highly to the enhancement of thermal and concentration fields. Also, the Robin boundary conditions affect flow fields significantly. Intensifying the Brownian motion effect enhances NPs’ concentration. Radial velocity is damped in the core region with stronger magnetic field. The mass transport rate is diminished, and the heat transmission rate is enhanced. The computations are relevant to smart nano-tribological systems in mechanical and aerospace engineering.