The smart construction of nano-photosensitizers (PSs) is significant for multipurpose applications, such as bioimaging, efficient photodynamic anti-tumor or anti-bacterial studies. This work reports a flexible self-assembling strategy the nano-PSs, in which PSs spontaneously form amorphous aggregates killing bacteria, self-assemble with tetraphenylethene (TPE) based glycoclusters (TPE-Glc4) to construct glyco-dots cell imaging and Tricyanofuran (TCF) TPE units were bridged furan thiophene...

The present study proposes an integrated computer-aided approach combining femur surface modeling, fracture evidence recover plate creation, and modification in order to conduct a parametric investigation of the design custom for specific patient. allows improving efficiency plates on patients’ parameters information. Furthermore, will lead exploration optimization. three-dimensional (3D) model detailed corresponding fixation were represented with high-level feature parameters, shape was...

Serial plates are not reasonable in material saving and stress dispersion.To design orthopedic ideally conveniently, this paper proposes a method to optimize through editing semantic parameters based on average bone model.Firstly, for the distribution of serial number size, an model is created from existing bones, among which each has contribution model.Secondly, common plate with constructed it can be conveniently modified.Lastly, optimizing thickness finite element analysis genetic...

Although anatomic plates reflect an important breakthrough in the treatment of distal femur fractures, there are still some patients experiencing healing complications. For individual differences bone morphology and development patient specific is very complex needs a long cycle. In this study, parametric approach was proposed to conveniently construct models design their fixation plates. First, typical anatomy described with average model. Second, five surface features were defined...

Matching of orthopedic plates and bony surfaces does not have a high certainty success because bone anatomy differs among individuals. Considering that both bones manifest themselves as freeform are especially suitable for surface feature-based design, novel method designing is put forward, with detailed steps follows. First, the feature (BSF) established through representation an average model, obtained based on investigated samples. Second, abutted plate directly BSF to increase matching...

To facilitate the design of serialized implants and to satisfy requirements population, a novel method is put forward for constructing an average bone model (ABM) with semantic parameters as template. First, ABM created from existing models, among which each has equal contribution ABM. Second, combined medical semantics, some characteristic points are defined on ABM, then, parameter values can be automatically obtained through its registration deformation Finally, template (ABT) constructed...

To quickly construct the orthopedic plates and to conveniently edit it, a novel method for designing is put forward based on feature idea parameterization. Firstly, attached existing or repaired bone mod... | Find, read cite all research you need Tech Science Press

In clinics, the reduction of femoral intertrochanteric fractures should meet medical demands both axis alignment and position alignment. State-of-the-art approaches are designed for merely alignment, not allowing The axis-position can be formulated as a least square optimization problem with inequality constraints. main challenges include how to solve this constrained effectively extract semantic randomly fractured bone pieces. To address these problems, semi-automatic data-driven method is...

Fractures are difficult to treat because of individual differences in bone morphology and fracture types. Compared serialized plates, the use customized plates significantly improves healing process. However, designing custom often requires extraction skeletal morphology, which is a complex time-consuming procedure. This study proposes method for extracting morphological features facilitate plate designs. The design involves three major steps: bone, representing undersurface plate,...

There is a lack of volume preserving and reasonable deformation human muscles during bones joints movement in the field digital orthopedics. A novel approach for modeling muscle its was put forward to effectively assist doctors guiding patients carry out rehabilitation exercises. Firstly, based on Magnetic Resonance Imaging (MRI) data, generated slice images were used extract outer contour lines then corresponding optimal matching points adjacent layer connected construct three-dimensional...

Dredging simulation is of great significance to the development dredging engineering technology harbor, waterway, rivers, lakes, etc. The design and implement system are introduced. modeling key techniques for virtual reality construction site, movement dredge vessel, soil cutting cutter, hydraulic transport sand in a pipeline, etc., discussed. cutter suction dredger simulator with multi-channel round screen has been put into operation produced good results.

In this paper a new method for generating human femur models was presented, which combined parametric technology and deformation technology. The main target of our proposed to quickly generate three-dimensional model would best suit the patient's bone, even if part bone damaged or only partial data about shape is available. First, all sample were remeshed so as have same topology template, enabled them achieve compatible mesh segmentation quickly. Then, complete morphological parameters...

To address the problem of automatic identification fine-grained fracture types, in this paper, we propose a novel framework using 3D convolutional neural network (CNN) to learn features from voxelized bone models which are obtained by establishing isomorphic mapping fractured bones template. The network, is named FractureNet, consists four discriminators forming multi-stage hierarchy. Each discriminator includes multiple sub-classifiers. These sub-classifiers chained two kinds feature chains...

Owing to the diversity and complexity of freeform surface shapes, it is difficult parameterize features express their shapes effectively.A parametric approach for layering proposed based on characteristic curves.A curve a key element regarded as basic unit building shapes.A can be divided into four levels, comprising, from lowest highest level, geometry, constraints, grammar, semantics.The information used layer parameters feature so that global local easily manipulated by layered...

The design of femoral stem prostheses requires a precise understanding the marrow cavity. Traditional measurements morphological parameters in upper femur, particularly medullary cavity and cortical region, are primarily based on coronal sagittal axes, which may not fully capture true three-dimensional structure femur.