(PDF) Near Infrared Illumination Optimization for Vein …
Overall, this paper presents an integrated hardware and software solution for the NIR image acquisition of a vein visualization system to cope with the image visualization of the vein for a ...
Sphenoparietal sinus transposition technique: optimization …
Objective: The sylvian bridging veins between the brain and the dura on the inner surface of the sphenoid wing can restrict brain retraction for widening of the lateral retrocarotid space during clipping surgery for internal carotid artery (ICA)-posterior communicating artery (PCoA) and basilar apex (BX) aneurysms. In such cases, the authors perform extradural …
Integration Methods and Optimization Algorithms
We show that accelerated optimization methods can be seen as particular instances of multi-step integration schemes from numerical analysis, applied to the gradient flow equation. Compared with recent advances in this vein, the differential equation considered here is the basic gradient flow, and we derive a class of multi-step
Meet the Expert | Integrated Vascular Vein Center of Michigan
Thomas A. Shuster, DO. Integrated Vascular Vein Center of Michigan is led by Thomas A. Shuster, DO, who earned his osteopathic medical degree at Ohio University and continued to study vascular surgery at the University of Missouri. Thomas is dedicated to the treatment of all vascular diseases specializing in vein therapies.
Experimental and numerical investigation of liquid
Topology optimization design of heat sinks. In this study, liquid cooled channels embedded in heat sinks, as shown in Fig. 1, are designed by density-based topology optimization. To achieve optimal thermal-hydraulic performances, two different TO problems are discussed: (1) flow distribution problem; (2) heat exchange …
Topology of leaf veins: Experimental observation and …
Biomechanical functions of veins such as nutrient transport and structural stiffness are integrated into the computational morphogenesis. The influence of the curved shape of mesophyll on the vein distribution is examined. This study reveals the optimization mechanisms underlying the intriguing overall layout of venation systems.
Topology optimization of ribbed slabs and shells
The approach is integrated into three optimization methods and used to design both flat slabs and curved shells. Several numerical examples are used to demonstrate the effectiveness of the new approach. ... Topology of leaf veins: Experimental observation and computational morphogenesis. J Mech Behav Biomed Mater, 123 …
Near Infrared Illumination Optimization for Vein …
The study's main aim is to achieve the highest number of visible veins. Based on the optical window, the maximum absorption range in the NIR spectrum was found from 700 to 950 nm. The NIR light absorption of human deoxygenated blood in the vein …
Hydraulic design of pine needles: One-dimensional optimization for
Ginkgo leaf veins possess a similar architecture (Esau, 1960) and capacity for creating gradients in vein properties, but other taxa with exceedingly long veins, such as cycads (Bierhorst, 1971 ...
Optimization of Survey Area for Auriferous-Sulphide
GKF is also known for iron (Fe), copper (Cu), and gold (Au)-rich sulphide mineralization (GSI, 1981; Lakshminarayana & Vijay Kumar, 2018; Sastry & Rahim, 1973).King was the first to report Cu mineralization in quartz veins intruded in Tadpatri Shales.He also recognized the old workings for copper are dumped as heaps alongside …
Near Infrared Illumination Optimization for Vein Detection: …
Overall, this paper presents an integrated hardware and software solution for the NIR image acquisition of a vein visualization system to cope with the image visualization of the vein for a thicker part of the human tissue, particularly on the arm and palm area. Venepuncture is one of the most crucial processes in many medical …
Classification-design-optimization integrated picking …
Robot technology is considered one of the most promising technologies to achieve intelligent production, with picking robots being the most common type. Picking robots are highly integrated mechatronic systems, which autonomously complete tasks including picking, carrying, and sorting. The application of picking robots enhances the efficiency of …
[PDF] Hybrid constraint optimization for 3D …
Medicine. Biomedical optics express. 2016. TLDR. A novel 3D reconstruction and fast imaging system for subcutaneous veins by augmented reality to reduce the …
Retinal Artery/Vein Classification via Graph Cut Optimization
In many diseases with a cardiovascular component, the geometry of microvascular blood vessels changes. These changes are specific to arteries and veins, and can be studied in the microvasculature of the retina using retinal photography. To facilitate large-scale studies of artery/vein-specific changes in the retinal vasculature, …
Bionic flow field research and optimization of PEMFC …
At present, there are many pieces of research on the single-branch veins bionic flow field, but the researches on the multi-branch veins bionic flow field only stays at the specific model level without specific analysis. In this paper, a new veins bionic flow field with multi-branch channels is proposed. The wider main channel and parallelogram ...
Convolutional neural network for automated segmentation …
While our result for portal veins is slightly better (0.66), the results for the hepatic veins was slightly lower (0.55), which may be explained by the fact that we used non-contrast T1 vibe Dixon ...
Optimization of the Retinal Vein Occlusion Mouse Model to …
Put the mouse in a restrainer. Press the gauze into the mouse tail gently and look for the dilated veins. Using the needle, inject the mouse tail vein, administering the correct amount according to the weight of the animal (37.5 mg/kg). Release the mouse from the restrainer and return it to the cage.
(PDF) Near Infrared Illumination Optimization for Vein …
This research also focuses on developing a highly affordable, integrated, portable vein visualization device that uses low-cost commercial off-the-shelf electronic components. Venepuncture and intravenous cannulation are among the most common medical procedures that were performed on patients [1].
Hybrid constraint optimization for 3D subcutaneous vein …
We present a hybrid constraint optimization (HCO) matching algorithm for vein reconstruction to solve the matching failure problems caused by the incomplete segmentation of vein structures captured from different views. This algorithm initially introduces the existence of the epipolar and homography constraints in the …
Contactless Palm Vein Recognition System with Integrated …
A contactless PVR system (CPVR) that uses an integrated learning approach (ILA) to recognise the palm veins from the given input images while ensuring user comfort and ease of use is described. —Palm Vein Recognition (PVR) is a new biometric authentication technology that provides both security and convenience. This paper describes a …
Multi-functional topology optimization of Victoria …
Therefore, we divide the synergetic optimization process into two main steps. In §3.1, we first use the nutrient transport model to analyse the morphology of bifurcated veins in the radial direction, and in §3.2, we use the maximum stiffness model to elucidate the generation of circumferential veins. 3. Results. 3.1.
Bionic flow field research and optimization of PEMFC with …
Optimization of the flow field design would improve homogeneity of the gas distribution and pressure drop values resulting in higher power density values. Flow field designs inspired from veins of ...
Pressure optimization system for Varicose Veins management
Veins have one way valves inside them that open and close to keep the blood flowing towards the heart. Varicose veins represent a condition where the weak or da ... integrated with compression bandage for pressure optimization and management of varicose veins. The effectiveness of the pressure indicating system is validated by measuring the ...
Three-Dimensional Finger Vein Recognition: A Novel Mirror …
The hand is put on a handle (which is mounted on the rotating platform) with an integrated illuminator based on the light transmission principle. The plate rotates around the z-axis. ... the authors propose a silhouette-based 3D finger vein reconstruction optimization model to obtain a 3D finger point cloud representation with finger vein ...
Integrated optimization algorithm: A metaheuristic approach …
Algorithm 1: Integrated Optimization Algorithm; Input 1: lc = dimension, lsp = 1, v = 0.9, Input 2: Random solutions for search agents, Output: Solution of the best search agent: for each iteration do: : 1) Each leader compares itself to the central point and makes a movement if a better solution is found. : 2) Single round coordinate descent operations …
Multi-functional topology optimization of Victoria …
In this paper, we propose a multi-functional and large-scale topology optimization method to investigate the morphomechanics of Victoria cruziana veins, which optimizes both the structural stiffness and …
Multi-functional topology optimization of Victoria cruziana veins
(a,b) Leaves of Victoria cruziana. (c) Bifurcated veins on an upright leaf.(d) The vein network on the bottom of the leaf with the radial direction e 1 and the circumferential direction e 2.The normal direction of the leaf is e 3.(e) The bifurcated radial veins (red colours) and circumferential veins (green walls).(f) Magnified photo of the air …
Optimization of an Ex-Vivo Human Skin/Vein Model for …
The vein samples were cut transversely in the middle and sutured with 6.0 non-absorbable polypropylene thread to reproduce an end-to-end vascular anastomosis. Then, both of the sutured wound models were put into the in-flight experiment hardware: each sample was placed in the culture chamber of an experiment unit (EU), filled with modified DMEM ...
Hybrid constraint optimization for 3D subcutaneous …
Yongtian Wang a. Add to Mendeley. https://doi/10.1016/j.cmpb.2018.06.008 Get rights and content. Highlights. •. A hybrid …
(PDF) Near Infrared Illumination Optimization for …
Overall, this paper presents an integrated hardware and software solution for the NIR image acquisition of a vein visualization system to cope with the image …