Abstract Wetlands play an important role in reducing global warming potential response to climate change. Unfortunately, due the effects of human disturbance and natural erosion, wetlands are facing extinction. It is essential implement engineering measures restore damaged wetlands. However, carbon sink capacity restored unclear. We examined seasonal change greenhouse gas emissions both wetland then evaluated sequestration wetland. found that (1) showed clear daily change, which was affected...

Abstract To date, most quadruped robots are either equipped with trunks that rigid bodies or consist of blocks connected by passive joints. The kinematic performance these is only determined their legs. release the mobility and enhance robots, this paper proposes a metamorphic robot moveable trunk (a planar six-bar closed-loop linkage), called MetaRobot I, which can implement active motions. twist its like natural quadrupeds. Through twisting, stability margin be increased compared trunk....

Abstract. The natural quadrupeds, such as geckos and lizards, often twist their trunks when moving. Conventional quadruped robots cannot perform the same motion due to equipping with a trunk which is rigid body or at most consists of two blocks connected by passive joints. This paper proposes metamorphic robot reconfigurable can implement active motions, called MetaRobot I. imitate quadrupeds execute twisting. Benefiting from twisting trunk, stride length this increased comparing that...

Most of the traditional quadruped robots are assembled with rigid trunks that make no active contributions to their locomotion performances. However, in natural world, some quadrupeds expand when jumping. This paper proposes a metamorphic robot, named Origaker II, an expandable trunk can implement motion contracting-stretching. Benefitting from trunk, this robot achieves longer jumping distance than robots. The structure is introduced. Its designed based on observation frog. effect will be...

Abstract A kinetostatic approach applied to the design of a backflip strategy for quadruped robots is proposed in this paper. Inspired by legged animals and taking advantage leg workspace, provides an optimal idea low-cost achieve self-recovery after overturning. Through energy analysis, four-stepped based on selected rotation axis with minimum proposed, process selection, lifting, rotating, protection. The kinematic factors that affect are investigated, along relationship between parameters...

Up to now the quadruped robots are equipped with trunks which rigid bodies or consist of two blocks connected by passive joints. This paper proposes a metamorphic robot moveable trunk can implement active motions, called MetaRobot I. Its is constructed planar 6-bar linkage. Due this linkage, it change its into multiple shapes, give ability imitate different animals, as well more actions natural quadrupeds. Specially, quadrupeds perform twisting never been done any before. trunk, kinematics...

This paper for the first time presents a novel single-loop 8R linkage with plane-symmetry and bifurcation property. By integrating two equilateral Bennett loops, structure geometric parameters of proposed are introduced. In light screw theory, three types configurations this analyzed carefully in accordance characteristics joint axes. The associated diverse transitory positions is consequently identified based on constraint singularity. Meanwhile, analysis simplifies independent equations...

Medical robotics plays an increasingly important role in minimally invasively surgery (MIS), where access is usually through a small incision on the body. This paper introduces conceptual design of compact MIS robot that integrates continuum manipulator with remote center-of-motion (RCM) mechanism. robotic system allows surgical instruments to enhance dexterity inside patient's body - desirable feature and potentially improving safety. We derive integrated kinematics entire system,...

With the advantages of high flexibility, strong adaptability, etc., legged robot can help humans to complete numerous complicated tasks. In this paper, a kind reconfigurable with flexible waist was proposed. Compared common robots rigid trunk, proposed twist its flexibly. Through analysis, it is found that improve trunk workspace, foot endpoints’ workspace and static stability margin robot, further enhance motion performance robot. Meanwhile, by imitating creatures in nature, gait planning...

The principle of the double parallel light path projection method is to image workpiece' right and left edges onto two CCDs respectively, through paths. Then workpiece's external diameter can be obtained by calculating length photosensitive units on shadow field CCDs, plus distance between In this way, measurement system enlarges range while ensuring accuracy. To obtain exactly result, video signal output CCD should first filtered amplified, then binary-value processed at last pulse filled...

<p style='text-indent:20px;'>Robot and programming education, as a key part of STEM is attracting more attention in the education industry. In this paper, novel open-sourced educational robotic platform, <i>Daran</i> robot, proposed with features terms reconfigurable, powerful, affordable. As an entry-level robot consists three individual robots, which are Mecanum-wheeled three-wheeled 4-DoF arm. Both graphical Python environments developed for students different entry...

Molecular recognition and preferential degradation are urgently needed for detoxification. Herein, a novel all-organic molecularly imprinted photocatalyst was first constructed by grafting perylene imide on graphite-phase carbon nitride (MIP-PDI/g-C3N4) using ofloxacin as template molecule. The adsorption capacity of MIP-PDI/g-C3N4 is higher than that non-imprinted counterpart (NIP-PDI/g-C3N4), showed superior molecular in the mixed solution ciprofloxacin. partition coefficient 0.457 L/g,...

The tumble stability indicates the capability to resist caused by disturbances. For a quadruped robot, is mainly about line segment connecting two supporting feet. of robots evaluated various criteria based on forces, moments or energies. Work has been done improve robots. Nevertheless, previous work achieve this goal relied motion legs. No trunk motions were considered. As matter fact, widely utilized natural quadrupeds. By utilizing motion, quadrupeds are able regulate center gravity...

BP artificial neural network (BP ANN) is one of the most active branch computational intelligence and machine learning area recently. It taken more seriously in field pattern recognition applications, now it an important theory tool to solve problems these applications. Considered blindness low efficiency traditional methods, this paper uses for liquid recognition, high accuracy obtained. Experiments results show that has a distinct advantage priori knowledge identification.

The error source of the external diameter measurement system based on double optical path parallel light projection method are non-parallelism path, aberration distortion lens, edge profile cylinder which is affected by aperture size illuminating beam, intensity variation and counting in circuit. screw pair drive applied to achieve up-and-down movement system. precision mainly lies Abbe Error caused offset between centerline mobile line capacitive-gate ruler, heeling guide mechanism,...

This paper introduces a reliable flow control system of metering pump based on the Single-Chip Microcomputer (SCM) technology, and puts forward hardware design proposal delicate system. On this basis, analyzes influence various interferences system, proposes corresponding anti-interference technology from hardware. By way, ability SCM can be improved remarkably, stability fully guaranteed.

Footed robots have significant application value in high-risk and high-intensity work scenarios such as field detection, rescue disaster relief, cargo handling. In this paper, a reconfigurable robot with flexible waist is proposed based on the traditional footed robot. The degrees of freedom hip joint femoral allow to realize reconfiguration three forms mammal, crawling arthropods, degree allows twist its own trunk, coordinate various actions, improve sports performance adapt variety complex...

The modulated coupled infrared light is injected into the liquid drop by a source fiber positioned in head and collected detector on opposite side after various reflection, refraction absorption of optical signal inside drop. Capacitive sensor uses as one its plate cylindrical ring plate, which surrounds space occupied formed drop, another. Based capacitance changes, instant volume can be obtained during growth. Fiber-capacitive will introduced concretely this paper, including working...

Liquid drop fingerprint can be obtained through fiber-capacitive analysis technology as the fiber signal changes with volume which represented by capacitive during growth. However, if or signals are filtered normal low-pass filter method, would distorted because of signal's saw-tooth style and periodically abrupt property. In paper subsection-filtering method is explored analyzed, in firstly separates according to growth period then filters every subsection respectively. Experiments improves...

The optoelectronic liquid drop fingerprint (OLDF) can be constructed by merging the fiber signal and capacitive signal, which shows a very fruitful source of information on bulk properties tested liquids, it is unique definite for certain under conditions. Therefore OLDF favorable fine discrimination among different liquids. There are some visible differences liquids in same experimental system, such as output voltage (or light intensity), capacitor volume), peak height profile fingerprint,...