Rotation Of Plane Research Articles

NUMERICAL ANALYSIS OF LIVER BIOMECHANICAL RESPONSE IN BLUNT IMPACTS TO UPPER ABDOMEN

Hepatic injury induced by blunt abdominal impact is a major cause of death in vehicle crashes. However, few works have been done effectively in cadaver experiments to clarify the liver’s specific dynamic behavior and mechanical characteristics. This paper described the dynamic behavior and mechanical characteristics of the liver under blunt impacts to the upper abdomen with the finite element model (FEM) of the Chinese human body — the 50 percentile-sized male (CHUBM-M50). The simulation matrix, three directions (frontal, oblique, lateral), and four speeds included in each group were designed with a 23.4[Formula: see text]kg, rigid cylindrical impactor aligning the T11 level. The liver deformation contours displayed compression against the spine and rotation in the horizontal plane, which were the two main features in liver motion. Pressure distribution in the liver capsule and parenchyma was discussed to elucidate the biomechanical characteristics related to impact direction. Generally, the stress distribution in the capsule was 10 times higher than that in the parenchyma. A discussion of the injury mechanism of the liver capsule and parenchyma observed in the simulations was given upon the pressure distribution. It demonstrated that the capsule could protect liver parenchyma at low-speed impacts and should not be neglected for understanding liver injury mechanisms.

Kinematic Comparison Between Walking and Jogging in The Lower Limbs Joints

Background Walking and jogging are considered two of the most important movements in human daily life. However, no previous studies have been conducted comparing the kinematics between these two movements. Research questions Are there any differences in joint kinematics of the lower limbs when walking and jogging? Methods Thirteen healthy males participated in this study with a mean age of 31.6 years. A motion capture system was used to collect walking and jogging movements in the lower limbs. The joint angles in hip, knee and ankle were compared between two movements. Statistical method was the repeated measurement of general linear model. Results The main finding was a significant difference between walking and jogging in the hip and ankle in sagittal plane in the knee in the transverse plane. During the entire gait cycle, the hip max extension in walking were roughly 9 deg larger than in jogging, but hip max flexion in walking were roughly 4 deg smaller than in jogging; as whole in the sagittal plane, the range of motion in the hip was larger in walking than in jogging by roughly 12%. Knee angles in the transverse plane were significantly greater in jogging than in walking by roughly 6 deg or 26% while similar in the sagittal plane. The ankle had larger range of motion in jogging than in walking by roughly 10 deg or 22% in the sagittal plane. Significance The study results demonstrate that jogging has not increased hip range of motion in the sagittal plane, but increased knee rotation in transverse plane largely in compared with walking. Moreover, jogging required greater flexibility at the ankle. The findings indicate that the protection of injury needs to pay more attention to the knee and ankle.

Estimating Maximum Power from Wind Turbines with a Simple Newtonian Approach

Recent findings in action mechanics showing torques result from rates of variation in impulsive action motivated this more fundamental approach to estimate maximum power from wind turbines. Newton’s third law of equality of action and reaction provides a strictly causal mechanism of wind power from the deflection of wind momentum by twice its angle (θ) of incidence on rotor blades. The lateral reaction needed to conserve wind momentum provides the turning moment for the turbine rotors. This direct approach challenges the current continuum mechanism for generating power from flows of kinetic energy in wind passing through the areas swept by rotating blades. Action mechanics integrates the rates of impulsive wind action on turbine blades as torques (∫mrvdθ/dt ≡ mv2) exerted on rotor surfaces at decreasing radii. Windward torque (Tw) is estimated from rotor dimensions, the angle of wind incidence and radial action of wind impulses on the blade surfaces (also ∫mrvdθ/dt ≡ mv2). A leeward torque (Tb) for back reaction of turbine blades on air mimics drag exerted parallel to the plane of rotation of the blade. Net torque is then converted to potential power (Tw - Tb)Ω by the angular velocity (Ω) of the turbine rotors, a function of tip speed ratio to wind speed. New contributions from action mechanics for managing wind power include larger estimates of its possible magnitude by including vortical energy, much larger than the kinetic energy. Better predictions of limits to wind power can be made, by including control of optimal wind angle and blade length. An analysis of the equivalence of deflected air momentum on turbine blades or air foils for aircraft reveals that even the lifting action on air foils can be explained by the normal reaction to the momentum in an air stream, also deflected by an angle twice that (2θ) of incidence, validating application of action mechanics to airflight. A mechanism for release of vortical field energy from laminar flow of air in anticyclones is predicted in turbulent downstream wakes, possibly assisting achievement of maximum power output by wind farms. Significant heat release by downwind turbulence from vortical energy requires care for their location. Diligence demands that use of windfarms as major sources of renewable energy should minimize any environmental impacts, such as drying of landscapes.

The rotation and incompatibility phase of the polarization state in monomode optical fibers

We have discovered two new types of geometric phases associated with a space curve in motion, considering both the arc length and time parameters, in three different scenarios. By examining the natural Bishop triad (a triad that undergoes parallel transport) and utilizing the concept of Fermi–Walker parallelism, we have identified two distinct phases known as the “Bishop incompatibility” and the “Bishop–Fermi–Walker” phases. These phases arise due to the rotational behavior along the space curve, which exhibits path dependence. We have derived the relationship between these phases for all cases. This classical approach enables us to extend the understanding of geometric rotation of the polarization plane in a monomode optical fiber without birefringence, which is situated on a moving space curve. With this extension, we can calculate the geometric phase of the rotation plane when the optical fiber’s space curve possesses an additional degree of freedom. Furthermore, we have established a connection between the Bishop incompatibility phase of the polarization state and the ordinary geometric phase of the rotation plane for the light wave as it propagates through the evolving monomode optical fiber system.

Comprehensive analyses of solar thermal module with booster mirror integration for adaptation to various application scenarios

Integration of a booster mirror reflector enhances the performance of evacuated tube collector within a prescribed range of solar incidence angles and reject solar rays within others. Seasonal performance adjustment makes it possible to adapt to various scenarios with different seasonal application purposes, for example, only domestic hot water, only space heating, or both. In this study, a mathematical model describing the photo-thermal conversion of this solar module was developed and validated using experimental data. The dynamic contributions of the collector and mirror planes were decomposed, and the optimal combination configurations for adaptation to three different application scenarios in four representative Chinese cities were investigated through the rotation of both planes. The three scenarios were: Scenario 1, annual performance augmentation; Scenario 2, coldest month performance augmentation; and Scenario 3, winter performance augmentation and prevention of summer overheating. It was found that optimal performance was always achieved when the collector plane was perpendicular to the mirror plane in the three scenarios. Depending on the optimal configurations, in Scenario 1 the mirror reflector contributed 30–32% heat energy, in Scenario 2 the mirror reflector contributed 41–49% heat energy during the coldest months, and in Scenario 3 the mirror reflector contributed 40–47% heat energy during the entire heating season. The objective of this study was to develop a comprehensive tool to evaluate the photo-thermal performance of this solar module and determine optimal configurations for various application scenarios.

Effect of Direction and Frequency of Skull Motion on Mechanical Vulnerability of the Human Brain.

Strain energy and kinetic energy in the human brain were estimated by magnetic resonance elastography (MRE) during harmonic excitation of the head, and compared to characterize the effect of loading direction and frequency on brain deformation. In brain MRE, shear waves are induced by external vibration of the skull and imaged by a modified MR imaging sequence; the resulting harmonic displacement fields are typically "inverted" to estimate mechanical properties, like stiffness or damping. However, measurements of tissue motion from MRE also illuminate key features of the response of the brain to skull loading. In this study, harmonic excitation was applied in two different directions and at five different frequencies from 20 to 90 Hz. Lateral loading induced primarily left-right head motion and rotation in the axial plane; occipital loading induced anterior-posterior head motion and rotation in the sagittal plane. The ratio of strain energy to kinetic energy (SE/KE) depended strongly on both direction and frequency. The ratio of SE/KE was approximately four times larger for lateral excitation than for occipital excitation and was largest at the lowest excitation frequencies studied. These results are consistent with clinical observations that suggest lateral impacts are more likely to cause injury than occipital or frontal impacts, and also with observations that the brain has low-frequency (∼10 Hz) natural modes of oscillation. The SE/KE ratio from brain MRE is potentially a simple and powerful dimensionless metric of brain vulnerability to deformation and injury.

Deep learning-based method for analyzing the optically trapped sperm rotation

Optical tweezers exert a strong trapping force on cells, making it crucial to analyze the movement of trapped cells. The rotation of cells plays a significant role in their swimming patterns, such as in sperm cells. We proposed a fast deep-learning-based method that can automatically determine the projection orientation of ellipsoidal-like cells without additional optical design. This method was utilized for analyzing the planar rotation of trapped sperm cells using an optical tweezer, demonstrating its feasibility in extracting the rotation of the cell head. Furthermore, we employed this method to investigate sperm cell activity by examining variations in sperm rotation rates under different conditions, including temperature and laser output power. Our findings provide evidence for the effectiveness of this method and the rotation analysis method developed may have clinical potential for sperm quality evaluation.

Elements of the parabola in the three-dimensional space and applications in teaching through a project based on reflection of light

This work, structured in two main parts, is devoted to the parabola topic. In the first, the elements of a parabola are reviewed by linking the definition of intersection of a plane and a cone with a locus of the plane. The necessary transformations for the calculation of the elements as a curve in space are pointed out as well as historical notes and properties of light are included. In the second part, the applications in teaching at a high school level or university courses are explained. A project based on the reflection of light is proposed that seeks to connect various subjects in line with the new educational paradigm of development of key competencies, joining different fields of knowledge. For university courses, applications of linear algebra are obtained in the establishment of relationships between analytical geometry in the rotation and translation of planes, and the dihedral system that is taught in technical drawing subjects. As a conclusion, it is obtained that the teaching of the parabola from different approaches allows a complete learning of diverse fields of knowledge, even of different topics of mathematics, an essential factor in the development of thought at any educational level.

Hip and trunk kinematics during reaching on a mobile and stable seat.

Reaching movements are often used to assess selective trunk control in people with neurological conditions. Also, it is known that reaching performance after stroke is increased through training on a mobile seat compared to conventional physical therapy. However, the effect of a mobile seat on joint kinematics has not yet been investigated. This study aimed to quantify differences in the range of motion of the hip and trunk during reaching exercises on a mobile and stable sitting surface. Fifteen healthy participants performed reaching beyond arm's length on a mobile and a stable seat in four different directions: ipsilateral, anterior, contralateral, and contralateral diagonal. Biomechanical data were collected, including kinematics of the hip and trunk, and surface electromyography of the trunk muscles. The mobile sitting surface led to a higher range of motion in the trunk and the hip in the frontal and sagittal plane, but not in the rotational plane. Differences between reaching directions were found in all joint directions, except that of trunk flexion. Hence, movement patterns of the hip and trunk differ during reaching on different sitting surfaces and in different directions. A larger range of motion in the frontal or sagittal plane while training on the mobile seat provides added neuromuscular stimuli to the trunk muscles (= a higher demand on trunk muscles), which could result in more efficient training and therefore, increased trunk control after stroke. However, this has to be investigated in a future study with people after stroke.

Features of furrow formation with rotary and arrow-headed working bodies

BACKGROUND: Soil-cultivating machinery and tools equipped with rotary working bodies are effectively used at operations of surface tillage. However, the subject of furrow formation with rotary working bodies is unaddressed to the full extent that makes it a relevant issue for the study.
 AIMS: Revealing the patterns of furrow formation with rotary working bodies equipped with the cutting blades made along the elliptical line at the angle to the working body rotation plane.
 METHODS: The grapho-analytical method is presented in the article and used for defining the parameters of a furrow formed with the following types of rotary working bodies: a spherical disk with a closed surface, an annular working body and a rotary working body with the cutting blades made along the elliptical line and set up at the acute angle to the rotation axis. The experiments were carried out in controlled laboratory conditions with a physical model of the rotary working body with the cutting blades made along the elliptical line in a soil channel filled with dampened sand. During the experiments, the attack angle was 20-40 with a step of 10 and the kinematic coefficient, which is the ratio of circumferential velocity to transverse velocity, had the following values: 1, 1.4, 1.8 and 2.2.
 RESULTS: The cutting blades made along the elliptical line form short furrows with the ellipse-shaped cross-section and with the angle of inclination from the movement direction of 20-40 depending on the attack angle and the kinematic coefficient. Meanwhile, the furrows formed with the working body have the form of a parallelogram at the top view.
 CONCLUSIONS: The practical value of the study lies in revealing the features of furrow formation with rotary working bodies equipped with the cutting blades made along the elliptical line aimed to making a flat bottom of a furrow necessary for grain planting.

The time course of planar and non-planar rotations in a letter rotation task

Mental rotation (MR) of character letters requires participants to mentally rotate the letter in their minds’ eyes through a process akin to the physical rotation of the stimulus. It has been suggested that different cognitive processes are engaged during such MR of both canonical and mirror-reversed letters. In addition to the planar rotation of the canonical letters, an additional “flip-over” process (non-planar rotation) has been assumed during the MR of mirror-reversed letters. However, the temporal relationship between planar and non-planar rotation has not been systematically investigated. In this study, the occurrence of both planar and non-planar rotations were examined through the analysis of the event-related brain potentials (ERPs) elicited by canonical or mirror-reversed letters presented at different rotation angles between 300 and 1000 ms post-stimulus onset over consecutive 50ms time-windows. For smaller rotation angles (30° and 60°), non-planar rotation preceded planar rotation. For letters rotated by 90°, planar and non-planar rotation occurred at the same time. For larger angles (120° and 150°), the letter was first rotated within the plane (planar rotation) and afterwards it was also rotated out-of-the-plane (non-planar rotation) until it was fully canonicalized. Thus, the temporal relationship between planar and non-planar rotation differed for each rotation angle, with the non-planar rotation occurring at increasingly later intervals for different points in time for progressively larger rotation angles. These findings have relevant methodological implications for studies investigating the psychophysiological correlates of the mental rotation of mirror letters.

Mapping intragranular microstructures in quartz: the significance of Dauphiné twinning

Abstract Mapping on the microstructural scale can contribute significantly to conventional field and larger scale mapping and understanding of spatial, temporal and process-oriented relationships. Here, electron backscattered diffraction (EBSD)-based microstructural maps are presented of subgrain and Dauphiné twin boundaries in undeformed sedimentary quartzite. ‘Plane matching’ analysis permits determination of the complete orientation of boundaries. A workflow is presented to facilitate the necessary crystallographic calculations. The resulting maps indicate: (1) boundary plane rotation angle/axis pairs, including tilt–twist components; (2) boundary migration vectors; and (3) conventional EBSD misorientation angle/axis pairs. Subgrain boundaries are general with small misorientations and boundary plane normal directions sub-parallel to grain boundary stress concentrations; rotation axes are oriented sub-parallel to the bedding dip (017°/10°E). Most exhibit bi-direction boundary migration vectors parallel to bedding normal. The EBSD misorientation analysis results are different as they only recognize the parallelism of adjacent crystal lattices. The differences are especially apparent for Dauphiné twin boundaries. Maps are presented of twin boundaries using matched plane analysis, including explanation for lateral twin migration. Driving forces to move twin boundaries are also estimated by mapping variations in Young's modulus between parents and twins; differences are significant, indicating that the Young's modulus and driving forces do not need to be large, explaining the propensity for twinning in many quartzites.

Realistic Spin Model for Multiferroic NiI_{2}.

A realistic first-principle-based spin Hamiltonian is constructed for the type-II multiferroic NiI_{2}, using a symmetry-adapted cluster expansion method. Besides single ion anisotropy and isotropic Heisenberg terms, this model further includes the Kitaev interaction and a biquadratic term, and can well reproduce striking features of the experimental helical ground state, that are, e.g., a proper screw state, canting of rotation plane, propagation direction, and period. Using this model to build a phase diagram, it is demonstrated that, (i)the in-plane propagation direction of ⟨11[over ¯]0⟩ is determined by the Kitaev interaction, instead of the long-believed exchange frustrations and (ii)the canting of rotation plane is also dominantly determined by Kitaev interaction, rather than interlayer couplings. Furthermore, additional MonteCarlo simulations reveal three equivalent domains and different topological defects. Since the ferroelectricity is induced by spins in type-II multiferroics, our work also implies that Kitaev interaction is closely related to the multiferroicity of NiI_{2}.

Characteristics of a tip-vortex generated by a single rotor used in agricultural spraying drone

A better understanding of downwash flow is required to increase the efficiency of unmanned aerial vehicle sprayers. The tip vortex rolled up by the rotor blade tip rotating at high speed produces a complex induced velocity field, which has an important impact on the downwash flow in the wake of the rotor. Usually, a symmetrical experimental setup with a central rotor support perpendicular to the rotation plane is used in studies on rotating blade wake and vortices, potentially leading to differences in observed wake and vortices in real situations. whereas in reality, the rotor is typically supported by a parallel arm extending below the rotor in the rotation plane. It is crucial to consider these differences for accurate results in analyzing blade rotation. The behavior of the tip vortices, dynamic characteristics, and velocity field of the rotor wake in agricultural drone single-rotor downwash flow was experimentally investigated using particle image velocimetry (PIV) combined with high-speed camera imaging. The dynamics of blade tip vortices at different wake ages and rotational speeds of the rotor, 1000–3000 rpm, were measured and analyzed. The results indicate that in the early stages of a vortex's life, tip vortices generated by rotors do not have an axisymmetric structure, and the swirl velocity in the core decreases logarithmically as the wake age increases. Vortex models were validated by examining the swirl velocity structure of the tip of the vortex. Vortices within the vortex core exhibit a comparable self-similar velocity profile to the Iverson model's laminar profile, despite the transition flow outside the vortex core. With these measurements, the behavior of vortices in the rotor’s wake could be described with generalized semi-empirical models.

Interspinous-Interbody Fusion via a Strictly Lateral Surgical Approach: A Biomechanical Stabilization Comparison to Constructs Requiring Both Lateral and Posterior Approaches.

Objective Lumbar fusion performed through lateral approaches is becoming more common. The interbody devices are generally supported by supplemental posterior fixation implanted through a posterior approach, potentially requiring a second incision and intraoperative repositioning of the patient. A minimally invasive lateral interspinous fixation device may eliminate the need for intraoperative repositioning and avoid disruption of the supraspinous ligament. The objective of this in vitrobiomechanical study was to investigate segmental multidirectional stability and maintenance of foraminal distraction of a lateral interspinous fixation device compared to commonly used pedicle screw and facet screw posterior fixation constructs when combined with lumbar interbody cages. Methods Six human cadaver lumbar spine specimens were subjected to nondestructive quasistatic loading in the following states: (1) intact; (2) interspinous fixation device alone and (3) with lateral interbody cage; (4) lateral lumbar interbody cage with bilateral pedicle screws; (5) lateral lumbar interbody cage with unilateral pedicle screws; and (6) lateral lumbar interbody cage with facet screws. Multidirectional pure bending in 1.5 Nm increments to 7.5 Nm, and 7.5 Nm flexion-extension bending with a 700 N compressive follower load were performed separately with optoelectronic segmental motion measurement. Relative angular motions of L2-L3, L3-L4, and L4-L5 functional spinal units were evaluated, and the mean instantaneous axis of rotation in the sagittal plane was calculated for the index level.Foraminal height was assessed during combined flexion-extension and compression loading for each test construct. Results All implant configurations significantly restricted flexion-extension motion compared with intact (p < 0.05). No significant differences were found in flexion-extension when comparing the different posterior implants combined with lateral lumbar interbody cages. All posterior fixation devices provided comparable neuroforaminal distraction and maintained distraction during flexion and extension. Conclusions When combinedwith lateral lumbar interbody cages, the minimally invasive lateral interspinous fixation device effectively stabilized the spine and maintained neuroforaminal distraction comparable to pedicle screw constructs or facet screws. These results suggest the lateral interspinous fixation device may provide a favorable alternative to other posterior systems that require patient repositioning during surgery and involve a greater disruption of native tissues.

Experimental and numerical investigation of the sound field produced by a shrouded UAV propeller

This paper investigates the effect of an acoustically rigid shroud on the tonal noise produced by an unmanned aerial vehicle (UAV) propeller. Enclosing the propeller with a shroud alters the steady loading on the propeller blades, thereby changing the steady loading tones radiated from the sources on the propeller surface. In this paper it is shown that the time-average rotating pressure field on the inner surface of the shroud also makes a significant contribution to the tonal noise. The aerodynamics of a shrouded and an isolated propeller was investigated using computational fluid dynamics (CFD) simulations. The tones produced by the steady loading and thickness sources on the propeller, and the time-average rotating pressure field on the surface of the shroud were calculated using an acoustic analogy approach and data from the CFD simulations. These calculations show that the tonal noise radiated from the loading sources on the inner surface of the shroud make a significant contribution to the tonal noise levels and that the contribution from the loading sources on the other surfaces of the shroud are negligible. A probe microphone was used to measure the time-average rotating pressure field on the inner surface of the shroud and these measurements showed good agreement with the CFD simulation. These measurements were then used to calculate the contribution of the loading sources on the inner surface of the shroud to the total noise measured experimentally. High resolution acoustic measurements in the near-field of a shrouded and an isolated propeller were also taken. The near-field measurements were then projected to the acoustic far-field and these levels are compared with numerical predictions. The results show that the effect of the shroud is to decrease the tonal noise for observers below the rotational plane of the propeller.

Pisa syndrome secondary to donepezil

Pisa syndrome is characterised by a tonic flexion of the trunk to one side and a slight axial rotation in the sagittal plane. Recently more cases have been reported in Alzheimer's dementia and in patients treated with acetylcholinesterase inhibitor medication. Here the authors present a case of Pisa syndrome in an elderly lady treated with donepezil and highlight the importance of monitoring patients for side‐effects.

High-Efficiency Wide-Angle Scanning Mechanoelectrical Hybrid Phased Array Antenna With Mechanically Reconfigurable Element Pattern

In this paper, a high-efficiency wide-angle scanning mechanoelectrical hybrid phased array antenna with mechanical-ly reconfigurable element pattern is proposed. The proposed array is composed of several linear array panels, which can be mechanically rotated. In contrast to conventional hybrid scan-ning arrays, it rotates in the elevation plane with only three fixed states enabling quick beam switching capabilities, rather than constantly rotating in the azimuth plane. The optimal element's half power beam-width (HPBW) and panel rotation angle are examined in this paper to produce the best scanning range and gain performance in the rotation plane for the array. As a proto-type, an 8×8 array formed by an equivalent magnetic dipole patch antenna, whose HPBW is properly designed to satisfy the optimal value, is configured and fabricated. Both simulated and experimental results show that the proposed array can scan its main beam from -67° to 67° in the <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">yoz</i> plane, -75° to 75° in the <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">xoz</i> plane, and its 3-dB beam coverage reaches ±82°, ±90° in the two planes. Additionally, the peak efficiency of the array can reach 75%.

Semantics of Verbs of Rotation in the Khanty language

The article is devoted to the identification of the national specifics of the representation of rotational movement in the Khanty linguoculture, the analysis of the semantics of verbs of rotation, the possibility of their lexical compatibility on the material of the Western dialects of the Khanty language (Kazym, Shuryshkar, Uralic) and one of the eastern (Surgut) by the types of situations described by them. The purpose of our study is to identify the parameters relevant to the lexical rotation zone. The article uses the method of corpus research: a sample of examples with verbs of rotation is analyzed and the boundaries of their compatibility are determined. The method of field research is used. There is a difference between movement along a trajectory close to an ideal circle (rotation in a circle) and movement along a chaotic trajectory, i.e. rotation of a set of homogeneous objects / gaseous particles (deer, snow vortex, smoke). In this case, the second type of rotation is marked. The subject performs multiple or single rotations around its axis or causates a rotational movement. The key parameter for distinguishing verbs of rotation and skating is animateness. Verbs of rotation around a landmark reflect the way of movement. Verbs of rolling and rotation do not reflect the environment of movement, but may reflect the direction of movement, which is regulated by the special compatibility of the subject and the predicate, or the word-formation capabilities of the predicate. The rolling zone reflects rotation in contact with the plane during translational motion and multidirectional rotation (about natural phenomena and about the movement of deer). The selected parameters and values are not lexicalized into separate verbs, but are combined inside lexemes. One lexeme describes situations of rotation in the same plane with and above the landmark, however, skating on the surface and rotation around the landmark is marked in dialects by separate lexemes.

A comprehensive study on intrinsic alpha corpuscular radiation damage in monazite crystals using picometer-scale imaging, coupled with SCXRD and Raman spectroscopy

We have investigated monazite crystals, known to experience lattice distortions due to alpha particle emission from their atomic nuclei. Our aim in this investigation is to study the complex relationship between the lattice parameters and Raman spectra of monazite crystals. Through this study, we seek to understand the interdependency between these physical parameters and their influence on one another for an improved understanding of radiation-induced damage in these crystals. In addition to this, we also attempted to establish a correlation between these properties and their picometer-scale images to gain a deeper understanding of the structural changes that occur at the atomic scale. We conducted our study on four monazite samples withstanding intrinsic alpha decay radiation, denoted as M1, M2, M3, and M4, with crystal unit cell volume ranging from 299.961 Å3 to 301.96 Å3. Our Pearson statistical analysis revealed a correlation R2 (0.96) between the SCXRD-derived Ce–P Distance of monazite and the FWHM of PO4 band active mode in Raman spectra. This indicated lattice distortions due to alpha decay radiation impacting the Raman spectra. While Raman PO4 band broadening can be a consequence of impurities, dopants, and radiation damage, HRTEM scrutiny of the samples at picometer scales revealed the presence of point defects, plane rotation, and lattice distortions within the samples, suggesting the impact of alpha decay on the crystal lattice. HRTEM analysis has added additional confirmation that the major contribution to PO4 band broadening is due to alpha radiation damage in these samples. Through our study, we conclude a multiple-approach correlation is necessary to accurately study radiation damage dynamics at atomic scales.