This paper proposes a perception-shared and swarm trajectory global optimal (STGO) algorithm fused UAVs formation motion planning framework aided by an active sensing system. First, the point cloud received each UAV is fit gaussian mixture model (GMM) transmitted in swarm. Resampling from GMM contributes to map, which used as foundation for consensus. Second, improve flight safety, system designed plan observation angle of considering unknown field, overlap field view (FOV), velocity...

One problem in the development of brain-computer interface (BCI) systems is to minimize amount subject training on premise accurate classification. Hence, challenge how train BCI system effectively especially scenario with small data. In this paper, we introduce improved semisupervised adaptation based common spatial pattern (CSP) features. The feature extraction and classification are performed jointly iteratively. iteration step, data expanded by part testing labels which predicted a...

To evaluate episcleral vasculature in corneal limbus with optical coherence tomography angiography (OCTA) normal controls, port-wine stain (PWS) patients, and Sturge-Weber syndrome (SWS) patients.Unilateral eyes from 18 controls (25.41 ± 4.00 years), 16 PWS patients (21.35 11.05 8 SWS ipsilateral late-onset glaucoma (22.13 7.82 years). Each subject underwent slit-lamp examination, applanation tonometry, OCTA. All OCTA scans were performed using an system operating at a wavelength of 1050-nm...

Nonlinear friction and external disturbances affect the positioning accuracy of high-speed motion systems, especially impelled by linear motor. Thus, how to eliminate theses disturbance should be considered when designing a robust controller. This paper presents controller, which includes three parts: proportional-plus-derivative (PD) feedback compensator, observer. The compensator is based on LuGre model it compensates for nonlinear friction. observer used compensation error other...

Microbial activity in the water injection system oil and gas industry leads to an array of challenges, including biofouling, injectivity loss, reservoir plugging, microbiologically influenced corrosion (MIC). An effective mitigation strategy requires online real-time monitoring microbial growth so that operators can apply adjust counter-measures quickly properly. The previous study [1] identified DNA staining technology-with PicoGreen SYBR Green dyes—as a very promising method for automated,...

Myxomycetes are eukaryotic microorganisms containing characteristics akin to both fungi and amoebae. They can complete their whole life cycles while being cultured on agar media, under-laboratory conditions, which favors taxonomic, phylogenetic, cytological researches. Here, we describe the of two such species: Didymium squamulosum collected from field Physarum rigidum moist chamber belonging Order Physarales. Three per cent oat-agar media (OAM) was used culture plasmodia until they...

Most of current myoelectric prostheses are using sequential and on-off control strategy within pattern classification framework, which is robustness. But it not a natural neuromuscular scheme. On the other hand, there two difficulties to prosthesis proportionally simultaneously. First, human hand high dimensional with more than 20 degrees-of-freedom (DOFs); Second, extracting such information from EMG hard due signal crosstalk noises. This paper aimed at proposing new method for proportional...

Microbial growth in the water injection system is a well-known problem with severe operational and financial consequences for petroleum industry, including microbiologically influenced corrosion (MIC), reduced injectivity, reservoir plugging, production downtime, extensive repair costs. Monitoring of microbiology required any mitigation strategy, enabling operators to apply adjust countermeasures properly due time. In previous studies [1] [2], DNA staining technology SYBR Green dye was...

This paper presents a linear model for simultaneous and proportional estimation of the two degree-of-freedoms (DOFs) wrist angle positions with surface electromyography (EMG). A 5th order state-space was used to estimate kinematics from 4-channel EMG signals contralateral forearm during mirrored bilateral movements without motion constraints. The signal each three limbed normal subjects collected along position in DOFs both arms, parameters tested including radial/ulnar deviation...

Three Parallel Rivers is one of the world’s biodiversity hotspots. However, research on myxomycetes diversity scarce in this area. Random sampling was used to investigate myxomycetes’ and distribution characteristics One hundred seventeen species, including three varieties, were obtained, belonging 28 genera, nine families, six orders, with Arcyria cinerea Physarum viride being dominant species. Moreover, four species variety first reported China. Twenty-six Yunnan Province. The species’...

We introduce SAM2Point, a preliminary exploration adapting Segment Anything Model 2 (SAM 2) for zero-shot and promptable 3D segmentation. SAM2Point interprets any data as series of multi-directional videos, leverages SAM 3D-space segmentation, without further training or 2D-3D projection. Our framework supports various prompt types, including points, boxes, masks, can generalize across diverse scenarios, such objects, indoor scenes, outdoor environments, raw sparse LiDAR. Demonstrations on...

Underactuated robotic hands based on postural synergy with passive joint compliance have shown promising performance in robust grasping. However it is still lack of universal theoretical analysis for this type hand. In paper we start from the previous model and method, modifying fundamental by introducing contact friction constraints A simulation tool called “SJT-GraspSim” Quadratic Program solver has been developed apply to evaluate “SJT-5” Hand our work. The results show that proposed...

Pattern recognition based myoelectric control has been studied by many researchers. However, the classification accuracy was pretty low for amputees towards multifunctional prosthesis in practice. In this work, a novel method of transcranial direct current stimulation (tDCS) which can modulate brain activity used to enhance performance control. The pilot study conducted on three able-bodied subjects and one transradial amputee. Surface electromyography (EMG) signals were acquired from both...

This paper presents an efficient algorithm for grasp synthesis and fixture layout design in discrete domain. Given N candidate contact points on the surface of a 3D object, determines minimal subset from so that they construct or with form-closure property. The proposed is implemented by solving single linear program. It has been shown that, achieves can be directly identified optimal basic solution vector program, provided non-degenerate. straightforward geometric interpretation, which also...

Objective To discuss the prenatal ultrasound findings of omphalocele, exstrophy, imperforate anus, spinal defects (OEIS) complex. Methods The nineteen cases with OEIS complex including two in a twin pregnancy, which diagnosed by autopsy from January2009to August2015, was analysed restropectively and compared anatomic finding autopsy. Results There were thirteen singleton pregnance five multiple one case fertilized vitro transferred embryo those complexded. Multiple malformations...