Name: kinematic history of a salient-recess junction explored through a combined approach of field data and analog sandbox modeling
Uploaded: 2016-08-05T15:00:00.000+00:00
Duration: 6 min 55 s
Description: Watch this Scientific Journal Video about Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling at JoVE.com

We thank Erin Bradley and Liz Cole for their assistance in the field. Field work, thin-section preparation and material for the sandbox model was supported by Franklin &amp; Marshall College's Committee on Grants.

<ol>
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G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Thrust+sheet+rotation+and+out-of-plane+strains+associated+with+oblique+ramps:+An+example.">Thrust sheet rotation and out-of-plane strains associated with oblique ramps: An example.</a> J. of Struct. Geol. 17 (5), 647-662 (1995).</li><li>Hubbert, M. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Theory+of+Scale+Models+as+Applied+to+the+Study+of+Geological+Structures.">Theory of Scale Models as Applied to the Study of Geological Structures.</a> Geol. Soc. of Am. Bull. 48 (10), 1459-1520 (1937).</li><li>Sch&#246;pfen, M. P. J., Steyrer, H. P., Koyi, H. 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The authors have nothing to disclose.

在塞维尔褶皱冲断带的中部犹他州段，其北界，在利明顿的横向区域作为理想的天然实验室，研究凸槽结（ 图1）。沿着这条交界处，输送方向保持恒定，并且推力片是跨过该结不间断，所以唯一变量是底层地下室几何5。 这里，我们提出通过组合与推块沙箱模型，它复制场区的大型几何现场收集多尺度故障数据以分析这种类型的凸凹结的方法。沙箱模型?...

褶皱冲断带是由salients（或段），其中在毗邻salients推力纸张由凹槽或横向区1,2,3脱钩的。从突出到凹陷的过渡可能会明显复杂，涉及到结构的多方面的套件，可以存放重要线索褶皱冲断带的发展。在本文中，我们仔细检查一个凸槽交界处，使用多尺度的现场数据和沙箱模型的组合，以更好地了解变形如何容纳褶皱冲断带之内。 中央犹他州段和利明横向区域的交界处是理想的天然实验室用于研究凸凹接合部有几个原因（ 图1）。首先，将段内露出的岩石继续，不中断，进入横向区4。所以，变形图案可以连续跟踪和穿过结比较。小号<html>的Econd，岩石基本上是单矿物，所以在故障模式的变化是不是单元内的非均质性的结果，而是反映了总体折叠和研究区域4内推压。第三，elastico-摩擦机制，如碎裂流，辅助变形整个场区，允许的尺度故障模式4直接比较。最后，总的输送方向保持沿着段和横向区域的长度连续的;因此，在缩短方向的变化不影响保留变形图案4。所有这些因素最小化的可能已影响到沿区段和横向区域中的变形的变量数。作为结果，我们推测，保留结构形成，主要是因为在底层基底几何学5的变化。 PLOAD / 54318 / 54318fig1.jpg"/&gt; 图1.索引图的例子。美国西部的塞维尔褶皱冲断带，呈现出大salients，段凹陷和横向的区域。由图2中方框区域（从伊斯马特·和Toeneboehn 7修改）表示。 <a href="https://www.jove.com/files/ftp_upload/54318/54318fig1large.jpg" target="_blank">请点击这里查看更大的版本这个数字。</a> 折叠和中央犹他州段和横利明顿区域内逆冲，发生在深度&lt;15公里处， 即 elastico-摩擦制度，其中主要的变形发生由露头尺度范围内（&lt;1米）断层和碎裂流4,6 。由于推力板的运输和折叠发生主要是由elastico-摩擦的机制，我们预测了详细的故障分析可提供进一步洞察利明顿的横向区域，次的运动历史<html> Ë底层地下室几何。为了检验这一假设，我们已收集并分析中央犹他州段的北部分内和整个利明横向区（ 图2）中的岩石保存故障模式。 <img alt="图3" src="/files/ftp_upload/54318/54318fig2.jpg" /> 图2.宏观尺度地形图的实施例。在图1中方框区域的上色浮雕地形图。4区域是由白色实线分开。元古宙球童峡谷石英岩（PCC）之间的床上用品的接触，相互元古代石英岩（PCM）和寒武纪Tintic石英岩（CT）所示。虚线显示山脉在此区域内的趋势。站点位置显示有编号的黑色方块。一阶线理都用实灰线（从伊斯马特·和Toeneboehn 7修改）。ftp_upload / 54318 / 54318fig2large.jpg"目标="_空白"&gt;点击此处查看该图的放大版本。 沙箱进行了实验来比较，和补充，故障数据。阿推块沙箱模型，额叶和倾斜坡道，被用来帮助我们保留在结构的分析，和周围的横向利明顿区（ 图3），7。这种方法的目标是四倍:1）确定尺度故障模式是一致的，2）确定所述沙箱模型支持并解释现场数据，3）确定如果沙箱模型提供在不属于结构的更多细节在现场观察到的，和4）评价该组合场实验方法是否是有用和容易复制。 <img alt="图3" src="/files/ftp_upload/54318/54318fig3.jpg" /> 图3的推块M实施例奥德尔。照片空沙箱模式。南部斜坡额叶（SFR），斜斜坡（OR），北斜前方（NFR），以及四个区域（1-4）被标记（由伊斯马特·和Toeneboehn 7修改）。 <a href="https://www.jove.com/files/ftp_upload/54318/54318fig3large.jpg" target="_blank">请点击此处查看大图这个数字。</a>

<table><tbody><tr><td>fiberboard</td><td>Any</td><td>NA</td><td></td></tr><tr><td>finishing lacquer</td><td>Any</td><td>NA</td><td></td></tr><tr><td>epoxy</td><td>Epoxy technology</td><td>Parts A and B: 301-2 2LB</td><td>Best if warmed to 80&amp;ordm; - 125&amp;ordm;. If warming is not possible, it will cure fine, it will just take 1 week, rather than 1 day.</td></tr><tr><td>ramp wood-pine</td><td>Any</td><td>NA</td><td></td></tr><tr><td>painters tape</td><td>Any</td><td>NA</td><td></td></tr><tr><td>rabbit joints</td><td>Any</td><td>NA</td><td></td></tr><tr><td>countersunk fasteners</td><td>Any</td><td>NA</td><td></td></tr><tr><td>sand paper</td><td>Any</td><td>NA</td><td></td></tr><tr><td>play sand</td><td>Any</td><td>NA</td><td>best if homogenous grain size, ~0.5 mm</td></tr><tr><td>food coloring</td><td>Any</td><td>NA</td><td>best to use one color and a dark color</td></tr><tr><td>plastic mesh/grid</td><td>Any</td><td>NA</td><td></td></tr><tr><td>square cross oins</td><td>Any</td><td>NA</td><td></td></tr><tr><td>crank screw</td><td>Any</td><td>NA</td><td></td></tr><tr><td>crank handle</td><td>Any</td><td>NA</td><td></td></tr><tr><td>sheet metal</td><td>Any</td><td>NA</td><td></td></tr><tr><td>dividers bars</td><td>Any</td><td>NA</td><td></td></tr></tbody></table>

kinematic history of a salient-recess junction explored through a combined approach of field data and analog sandbox modeling

Within fold-thrust belts, the junctions between salients and recesses may hold critical clues to the overall kinematic history. The deformation history within these junctions is best preserved in areas where thrust sheets extend from a salient through an adjacent recess. We examine one such junction within the Sevier fold-thrust belt (western United States) along the Leamington transverse zone, northern Utah. Deformation within this junction took place by faulting and cataclastic flow. Here, we describe a protocol that examines these fault patterns to better understand the kinematic history of the field area. Fault data is supplemented by analog sandbox experiments. This study suggests that, in detail, deformation within the overlying thrust sheet may not directly reflect the underlying basement structure. We demonstrate that this combined field-experimental approach is easy, accessible, and may provide more details to the deformation preserved in the crust than other more expensive methods, such as computer modeling. In addition, the sandbox model may help to explain why and how these details formed. This method can be applied throughout fold-thrust belts, where upper-crustal rocks are well preserved. In addition, it can be modified to study any part of the upper crust that has been deformed via elastico-frictional mechanisms. Finally, this combined approach may provide more details as to how fold-thrust belts maintain critical-taper and serve as potential targets for natural resource exploration.

空中拍摄的照片被用于现场区域划分为四个区域（1-4），基于现代山嵴顶的趋势（ 图2）。多尺度故障数据这四个地区进行比较。假定这些趋势变化反映底层基底的几何形状，倾斜的斜坡位于区域2和3中，内，其中山趋势倾斜于塞维尔折叠推力带。在整个四个区域，我们发现，中尺度的故障保护变形织物是渗透和均匀的尺度（ 即，岩石的立方米），并代...

Watch this Scientific Journal Video about Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling at JoVE.com

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Kinematic histories of fold-thrust belts are typically based on careful examinations of high-grade metamorphic rocks within a salient. We provide a novel method of understanding fold-thrust belts by examining salient-recess junctions. We analyze the oft-ignored upper crustal rocks using a combined approach of detailed fault analysis with experimental sandbox modeling.

通过现场数据和模拟沙盒建模相结合的办法探索出了一条凸槽结的运动史

Within fold-thrust belts, the junctions between salients and recesses may hold critical clues to the overall kinematic history. The deformation history ...

kinematic-history-salient-recess-junction-explored-through-combined

Research

JoVE Journal

Environment

8.1K 次观看.  Franklin and Marshall College. Kinematic histories of fold-thrust belts are typically based on careful examinations of high-grade metamorphic rocks within a salient. We provide a novel method of understanding fold-thrust belts by examining salient-recess junctions. We analyze the oft-ignored upper crustal rocks using a combined approach of detailed fault analysis with experimental sandbox modeling.

视频: Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Physiological, Morphological and Neurochemical Characterization of Neurons Modulated by Movement

The role of individual neurons and their function in neuronal circuits is fundamental to understanding the neuronal mechanisms of sensory and motor functions. Most investigations of sensorimotor mechanisms rely on either examination of neurons while an animal is static1,2 or record extracellular neuronal activity during a movement.3,4 While these studies have provided the fundamental background for sensorimotor function, they either do not evaluate functional information which occurs during a movement or are limited in their ability to fully characterize the anatomy, physiology and neurochemical phenotype of the neuron. A technique is shown here which allows extensive characterization of individual neurons during an in vivo movement. This technique can be used not only to study primary afferent neurons but also to characterize motoneurons and sensorimotor interneurons. Initially the response of a single neuron is recorded using electrophysiological methods during various movements of the mandible followed by determination of the receptive field for the neuron. A neuronal tracer is then intracellularly injected into the neuron and the brain is processed so that the neuron can be visualized with light, electron or confocal microscopy (Fig. 1). The detailed morphology of the characterized neuron is then reconstructed so that neuronal morphology can be correlated with the physiological response of the neuron (Figs. 2,3). In this communication important key details and tips for successful implementation of this technique are provided. Valuable additional information can be determined for the neuron under study by combining this method with other techniques. Retrograde neuronal labeling can be used to determine neurons with which the labeled neuron synapses; thus allowing detailed determination of neuronal circuitry. Immunocytochemistry can be combined with this method to examine neurotransmitters within the labeled neuron and to determine the chemical phenotypes of neurons with which the labeled neuron synapses. The labeled neuron can also be processed for electron microscopy to determine the ultrastructural features and microcircuitry of the labeled neuron. Overall this technique is a powerful method to thoroughly characterize neurons during in vivo movement thus allowing substantial insight into the role of the neuron in sensorimotor function.

A technique is described to quantify the in vivo physiological response of mammalian neurons during movement and correlate the physiology of the neuron with neuronal morphology, neurochemical phenotype and synaptic microcircuitry.

由运动神经元调制生理，形态学和神经化学的表征

The role of individual neurons and their function in neuronal circuits is fundamental to understanding the neuronal mechanisms of sensory and motor ...

科研

神经科学

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

For slender and lightweight structures, vibration serviceability is a matter of growing concern, often constituting the critical design requirement. With designs governed by the dynamic performance under human-induced loads, a strong demand exists for the verification and refinement of currently available load models. The present contribution uses a 3D inertial motion tracking technique for the characterization of the in-field pedestrian behavior. The technique is first tested in laboratory experiments with simultaneous registration of the corresponding ground reaction forces. The experiments include walking persons as well as rhythmical human activities such as jumping and bobbing. It is shown that the registered motion allows for the identification of the time variant pacing rate of the activity. Together with the weight of the person and the application of generalized force models available in literature, the identified time-variant pacing rate allows to characterize the human-induced loads. In addition, time synchronization among the wireless motion trackers allows identifying the synchronization rate among the participants. Subsequently, the technique is used on a real footbridge where both the motion of the persons and the induced structural vibrations are registered. It is shown how the characterized in-field pedestrian behavior can be applied to simulate the induced structural response. It is demonstrated that the in situ identified pacing rate and synchronization rate constitute an essential input for the simulation and verification of the human-induced loads. The main potential applications of the proposed methodology are the estimation of human-structure interaction phenomena and the development of suitable models for the correlation among pedestrians in real traffic conditions.

A protocol is presented for the characterization of the in-field pedestrian behavior and the simulation of the resulting structural response. Field-tests demonstrate that the in situ identified pacing rate and synchronization rate among the participants constitute an essential input for the simulation and verification of the human-induced loads.

基于该特征场行人行为人类引起的振动模拟

For slender and lightweight structures, vibration serviceability is a matter of growing concern, often constituting the critical design requirement. With ...

工程学

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Individuals with sensorimotor pathology e.g., stroke have difficulty executing the common task of rising from sitting and initiating gait (sit-to-walk: STW). Thus, in clinical rehabilitation separation of sit-to-stand and gait initiation - termed sit-to-stand-and-walk (STSW) - is usual. However, a standardized STSW protocol with a clearly defined analytical approach suitable for pathological assessment has yet to be defined.
Hence, a goal-orientated protocol is defined that is suitable for healthy and compromised individuals by requiring the rising phase to be initiated from 120% knee height with a wide base of support independent of lead limb. Optical capture of three-dimensional (3D) segmental movement trajectories, and force platforms to yield two-dimensional (2D) center-of-pressure (COP) trajectories permit tracking of the horizontal distance between COP and whole-body-center-of-mass (BCOM), the decrease of which increases positional stability but is proposed to represent poor dynamic postural control.
BCOM-COP distance is expressed with and without normalization to subjects&#39; leg length. Whilst COP-BCOM distances vary through STSW, normalized data at the key movement events of seat-off and initial toe-off (TO1) during steps 1 and 2 have low intra and inter subject variability in 5 repeated trials performed by 10 young healthy individuals. Thus, comparing COP-BCOM distance at key events during performance of an STSW paradigm between patients with upper motor neuron injury, or other compromised patient groups, and normative data in young healthy individuals is a novel methodology for evaluation of dynamic postural stability.

Here, we present a novel protocol to measure positional stability at key events during the sit-to-stand-to-walk using the center-of-pressure to the whole-body-center-of-mass distance. This was derived from the force platform and three-dimensional motion-capture technology. The paradigm is reliable and can be utilized for the assessment of neurologically compromised individuals.

坐姿到站姿和步行距离120％膝盖高度:新方法来评估铅肢体的动态姿势控制独立

Individuals with sensorimotor pathology e.g., stroke have difficulty executing the common task of rising from sitting and initiating gait (sit-to-walk: ...

行为学

Remote Magnetic Actuation of Micrometric Probes for in situ 3D Mapping of Bacterial Biofilm Physical Properties

Bacterial adhesion and growth on interfaces lead to the formation of three-dimensional heterogeneous structures so-called biofilms. The cells dwelling in these structures are held together by physical interactions mediated by a network of extracellular polymeric substances. Bacterial biofilms impact many human activities and the understanding of their properties is crucial for a better control of their development &#8212; maintenance or eradication &#8212; depending on their adverse or beneficial outcome. This paper describes a novel methodology aiming to measure in situ the local physical properties of the biofilm that had been, until now, examined only from a macroscopic and homogeneous material perspective. The experiment described here&#160;involves introducing magnetic particles into a growing biofilm to seed local probes that can be remotely actuated without disturbing the structural properties of the biofilm. Dedicated magnetic tweezers were developed to exert a defined force on each particle embedded in the biofilm. The setup is mounted on the stage of a microscope to enable the&#160;recording of time-lapse images of the particle-pulling period. The particle trajectories are then extracted from the pulling sequence and the local viscoelastic parameters are derived from each particle displacement curve, thereby providing the 3D-spatial distribution of the parameters. Gaining insights into the biofilm mechanical profile is essential from an engineer&#39;s point of view for biofilm control purposes but also from a fundamental perspective to clarify the relationship between the architectural properties and the specific biology of these structures.

Remote Magnetic Actuation of Micrometric Probes for in situ 3D Mapping of Bacterial Biofilm Physical Properties

This paper shows an original methodology based on the remote actuation of magnetic particles seeded in a bacterial biofilm and the development of dedicated magnetic tweezers to measure in situ the local mechanical properties of the complex living material built by micro-organisms at interfaces.

测微探针进行远程磁驱动<em&gt;原位</em&gt; 3D细菌生物膜物理性质的映射

Bacterial adhesion and growth on interfaces lead to the formation of three-dimensional heterogeneous structures so-called biofilms. The cells dwelling in ...

生物工程

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact

The measurement of dynamic scapular kinematics is complex due to the sliding nature of the scapula beneath the skin surface. The aim of the study was to clearly describe the acromion marker cluster (AMC) method of determining scapular kinematics when using a passive marker motion capture system, with consideration for the sources of error which could affect the validity and reliability of measurements. The AMC method involves placing a cluster of markers over the posterior acromion, and through calibration of anatomical landmarks with respect to the marker cluster it is possible to obtain valid measurements of scapular kinematics. The reliability of the method was examined between two days in a group of 15 healthy individuals (aged 19-38 years, eight males) as they performed arm elevation, to 120&#176;, and lowering in the frontal, scapular and sagittal planes. Results showed that between-day reliability was good for upward scapular rotation (Coefficient of Multiple Correlation; CMC = 0.92) and posterior tilt (CMC = 0.70) but fair for internal rotation (CMC = 0.53) during the arm elevation phase. The waveform error was lower for upward rotation (2.7&#176; to 4.4&#176;) and posterior tilt (1.3&#176; to 2.8&#176;), compared to internal rotation (5.4&#176; to 7.3&#176;). The reliability during the lowering phase was comparable to results observed during the elevation phase. If the protocol outlined in this study is adhered to, the AMC provides a reliable measurement of upward rotation and posterior tilt during the elevation and lowering phases of arm movement.

This report presents details of how to adopt the acromion marker cluster method of obtaining scapular kinematics when using a passive marker motion capture device. As has been described in the literature, this method provides a robust, non-invasive, three-dimensional, dynamic and valid measurement of scapular kinematics, minimizing skin movement artifact.

动态肩胛运动学使用的肩峰标记集群尽量减少与皮肤运动伪影测量

The measurement of dynamic scapular kinematics is complex due to the sliding nature of the scapula beneath the skin surface. The aim of the study was to ...

医学

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

Bone stress injuries are common in sports and military trainings. Repetitive large ground impact forces during training could be the cause. It is essential to determine the effect of high ground impact forces on lower-body bone deformation to better understand the mechanisms of bone stress injuries. Conventional strain gauge measurement has been used to study in vivo tibia deformation. This method is associated with limitations including invasiveness of the procedure, involvement of few human subjects, and limited strain data from small bone surface areas. The current study intends to introduce a novel approach to study tibia bone strain under high impact loading conditions. A subject-specific musculoskeletal model was created to represent a healthy male (19 years, 80 kg, 1,800 mm). A flexible finite element tibia model was created based on a computed tomography (CT) scan of the subject&#39;s right tibia. Laboratory motion capture was performed to obtain kinematics and ground reaction forces of drop-landings from different heights (26, 39, 52 cm). Multibody dynamic computer simulations combined with a modal analysis of the flexible tibia were performed to quantify tibia strain during drop-landings. Calculated tibia strain data were in good agreement with previous in vivo studies. It is evident that this non-invasive approach can be applied to study tibia bone strain during high impact activities for a large cohort, which will lead to a better understanding of injury mechanism of tibia stress fractures.

During landing, lower-body bones experience large mechanical loads and are deformed. It is essential to measure bone deformation to better understand the mechanisms of bone stress injuries associated with impacts. A novel approach integrating subject-specific musculoskeletal modeling and finite element analysis is used to measure tibial strain during dynamic movements.

动态运动过程中骨应变的学科特异性肌肉模型研究

Bone stress injuries are common in sports and military trainings. Repetitive large ground impact forces during training could be the cause. It is ...

3D Kinematic Analysis for the Functional Evaluation in the Rat Model of Sciatic Nerve Crush Injury

Compared to the Sciatic Functional Index (SFI), kinematic analysis is a more reliable and sensitive method for performing functional evaluations of sciatic nerve injury rodent models. In this protocol, we describe a novel kinematic analysis method that uses a three-dimensional (3D) motion capture apparatus for functional evaluations using a rat sciatic nerve crush injury model. First, the rat is familiarized with treadmill walking. Markers are then attached to the designated bone landmarks and the rat is made to walk on the treadmill at the desired speed. Meanwhile, the posterior limb movements of the rat are recorded using four cameras. Depending on the software used, marker tracings are created using both automatic and manual modes and the desired data are produced after subtle adjustments. This method of kinematic analysis, which uses a 3D motion capture apparatus, offers numerous advantages, including superior precision and accuracy. Many more parameters can be investigated during the comprehensive functional evaluations. This method has several shortcomings that require consideration: The system is expensive, can be complicated to operate, and may produce data deviations due to skin shifting. Nevertheless, kinematic analysis using a 3D motion capture apparatus is useful for performing functional anterior and posterior limb evaluations. In the future, this method may become increasingly useful for generating accurate assessments of various traumas and diseases.

We introduce a kinematic analysis method that uses a three-dimensional motion capture apparatus containing four cameras and data processing software for performing functional evaluations during fundamental research involving rodent models.

坐骨神经粉碎损伤大鼠模型中功能评估的3D运动学分析

Compared to the Sciatic Functional Index (SFI), kinematic analysis is a more reliable and sensitive method for performing functional evaluations of ...

使用有限元模型分析 SARPE 的膨胀模式

Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion

Surgically assisted rapid palatal expansion (SARPE) was introduced to release bony resistance to facilitate skeletal expansion in skeletally mature patients. However, asymmetric expansion between the left and right sides has been reported in 7.52% of all SARPE patients, of which 12.90% had to undergo a second surgery for correction. The etiologies leading to asymmetric expansion remain unclear. Finite element analysis has been used to evaluate the stress associated with SARPE in the maxillofacial structures. However, as a collision of the bone at the LeFort I osteotomy sites occurs only after a certain amount of expansion, most of the existing models do not truly represent the force distribution, given that the expansion amount of these existing models rarely exceeds 1 mm. Therefore, there is a need to create a novel finite element model of SARPE that could perform a clinically required amount of expander activation for further analysis of the expansion patterns of the hemimaxillae in all three dimensions. A three-dimensional (3D) skull model from cone beam computed tomography (CBCT) was imported into Mimics and converted into mathematical entities to segment the maxillary complex, maxillary first premolars, and maxillary first molars. These structures were transferred into Geomagic for surface smoothing and cancellous bone and periodontal ligament creation. The right half of the maxillary complex was then retained and mirrored to create a perfectly symmetrical model in SolidWorks. A Haas expander was constructed and banded to the maxillary first premolars and first molars. Finite element analysis of various combinations of buccal osteotomies at different angles with 1 mm clearance was performed in Ansys. A convergence test was conducted until the desired amount of expansion on both sides (at least 6 mm in total) was achieved. This study lays the foundation for evaluating how buccal osteotomy angulation influences the expansion patterns of SARPE.

作者聚焦：开发一种用于改进正颌手术技术的新型有限元分析模型 

A set of novel finite element models of surgically assisted rapid palatal expansion (SARPE) that could perform a clinically required amount of expander activation with various angles of buccal osteotomy was created for further analysis of the expansion patterns of the hemimaxillae in all three dimensions.

用于评估手术辅助快速腭扩张模式的有限元分析模型

Surgically assisted rapid palatal expansion (SARPE) was introduced to release bony resistance to facilitate skeletal expansion in skeletally mature ...

通过现场数据和模拟沙盒建模相结合的办法探索出了一条凸槽结的运动史

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坐姿到站姿和步行距离120％膝盖高度:新方法来评估铅肢体的动态姿势控制独立

测微探针进行远程磁驱动

动态肩胛运动学使用的肩峰标记集群尽量减少与皮肤运动伪影测量

动态运动过程中骨应变的学科特异性肌肉模型研究

坐骨神经粉碎损伤大鼠模型中功能评估的3D运动学分析

用于评估手术辅助快速腭扩张模式的有限元分析模型

用于评估手术辅助快速腭扩张模式的有限元分析模型

用于评估手术辅助快速腭扩张模式的有限元分析模型