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Rigid sensors are a mature type of sensor, but their poor deformation and flexibility limit their application range. The appearance and development of flexible sensors provide an opportunity to solve this problem. In this paper, a resistive flexible sensor utilizes gallium−based liquid metal (eutectic gallium indium alloy, EGaIn) and poly(dimethylsiloxane) (PDMS) and is fabricated using an injecting thin−line patterning technique based on soft lithography. Combining the scalable fabrication process and unique wire−shaped liquid metal design enables sensitive multifunctional measurement under stretching and bending loads. Furthermore, the flexible sensor is combined with the glove to demonstrate the application of the wearable sensor glove in the detection of finger joint angle and gesture control, which offers the ability of integration and multifunctional sensing of all−soft wearable physical microsystems for human–machine interfaces. It shows its application potential in medical rehabilitation, intelligent control, and so on.

The excellent motion performance of gallium-based liquid metal (LM) upon the application of a modest electric field has provided a new opportunity for the development of autonomous soft robots. However,...

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Ash content, calorific value and content of selected organic and mineral constituents in leaves, branches, roots, stem wood and bark of four year old, plantation grown Eucalyptus urophylla x grandis were analyzed. Ash contents of the five component tree tissues ranged from 0.3% to 4.1 %, and the order by decreasing ash content was: leaves> bark> branches> roots >stem-wood. Gross and ash free calorific values of the five component tissues ranged from 17.9 to 20.2 kJ gl and 18.6 to 21.1 kJ gl respectively. Leaves had the highest gross and ash free calorific values and bark the lowest, the order of component tissues by decreasing gross calorific value were: leaves> roots> branches > stem-wood > bark; and by decreasing ash free calorific value: leaves > branches > roots > stem-wood > bark. Gross calorific values of the five component tissues showed no significant correlations with crude protein, crude fiber, crude fat, lignin, or a-cellulose content, nor with the content of any of the elements nitrogen, phosphorous or carbon (P<0.05). In contrast, ash free calorific value did show significant (P<0.05), moderate to strong positive correlations with crude protein, nitrogen and crude fat content, as well as a significant, strongly negative correlation with crude fiber content. Interestingly though, gross and ash free calorific values were positively and strongly correlated with each other (r=0.93, P