scholarly journals Wearable Wide-Range Strain Sensors Based on Ionic Liquids and Monitoring of Human Activities

Sensors ◽  
2017 ◽  
Vol 17 (11) ◽  
pp. 2621 ◽  
Author(s):  
Shao-Hui Zhang ◽  
Feng-Xia Wang ◽  
Jia-Jia Li ◽  
Hong-Dan Peng ◽  
Jing-Hui Yan ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Human Activities ◽  
Strain Sensors ◽  
Wide Range

Mechanistic Investigation of the Synergy of a Wide Range of Salinities and Ionic Liquids for Enhanced Oil Recovery: Fluid–Fluid Interactions

2021 ◽  
Vol 35 (4) ◽  
pp. 3011-3031
Author(s):  
Ali Esfandiarian ◽  
Ali Maghsoudian ◽  
Mahsa Shirazi ◽  
Yousef Tamsilian ◽  
Shahin Kord ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Mechanistic Investigation ◽  
Wide Range ◽  
Fluid Interactions

Cholinium-amino acid based ionic liquids: a new method of synthesis and physico-chemical characterization

2015 ◽  
Vol 17 (32) ◽  
pp. 20687-20698 ◽  
Author(s):  
Serena De Santis ◽  
Giancarlo Masci ◽  
Francesco Casciotta ◽  
Ruggero Caminiti ◽  
Eleonora Scarpellini ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Room Temperature ◽  
Chemical Characterization ◽  
New Method ◽  
Room Temperature Ionic Liquids ◽  
Synthetic Method ◽  
Chemical Structures ◽  
Physico Chemical ◽  
Wide Range

Fourteen cholinium-amino acid based room temperature ionic liquids were prepared using a cleaner synthetic method. Chemicophysical properties were well correlated with the wide range of amino acid chemical structures.

scholarly journals Prostorna diferencijacija vrgoračkog područja na temelju krških prirodno-geografskih i društveno-geografskih obilježja

Geoadria ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 241
Author(s):  
Branimir Vukosav
Keyword(s):  
Human Activities ◽  
Small Area ◽  
Geographical Area ◽  
Southeastern Part ◽  
Wide Range ◽  
Dominant Feature ◽  
Increasing Process

The area of Vrgorac is defined by a contrast between the high mountainous zones in the southwest and the low karst poljes in the southeastern part of the municipality. It is a relatively small area which includes a wide range of different natural-geographic and socio-geographic elements usually featured in karst zones with limestone basis. Considering the above mentioned features, the area of Vrgorac can be divided into several spatial zones. Specific natural geographic conditions have resulted in landscapes of distinctive Dinaric socio-geographical area which are still typical in some zones of Vrgorac, representing the dominant feature in the area in spite of the ever-increasing process of modernization and globalization with their impact on human activities and the environment. 

Study of Zero Velocity Update for Both Low- and High-Speed Human Activities

2012 ◽  
pp. 65-84
Author(s):  
R. Zhang ◽  
M. Loschonsky ◽  
L.M. Reindl
Keyword(s):  
Human Activities ◽  
High Speed ◽  
Inertial Sensor ◽  
Stair Climbing ◽  
Measurement Unit ◽  
Inertial Measurement ◽  
Fast Walking ◽  
Zero Velocity ◽  
Wide Range ◽  
Algorithm Implementation

Previous studies show that inertial sensor-based personal positioning benefited from Zero Velocity Update (ZUPT) method by resetting the foot speed at every foot step. However, only the solution for normal pedestrian movement with small velocity like walking was given. This paper presents a novel ZUPT system which can be used in a wide range of human activities, including walking, running, and stair climbing by using two inertial measurement unit (IMU) modules. One is attached on the centre of the human body for human activities’ classification and recognition. The other one is mounted on the foot for ZUPT algorithm implementation based on the result of activities’ recognition. Test cases include stair climbing by walking and running, walking, fast walking, and running. In all cases, most of the steps are able to be detected and the new ZUPT system can be successfully implemented.

Wide-range linear viscoelastic hydrogels with high mechanical properties and their applications in quantifiable stress-strain sensors

2020 ◽  
Vol 399 ◽  
pp. 125697 ◽  
Author(s):  
Changshu Ma ◽  
Yi Wang ◽  
Zuming Jiang ◽  
Zhenxing Cao ◽  
Huiting Yu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Strain Sensors ◽  
Stress Strain ◽  
Wide Range ◽  
Linear Viscoelastic

scholarly journals Wrinkle-Enabled Highly Stretchable Strain Sensors for Wide-Range Health Monitoring with a Big Data Cloud Platform

2020 ◽  
Vol 12 (38) ◽  
pp. 43009-43017 ◽  
Author(s):  
Jian Huang ◽  
Jian Zhou ◽  
Yangmei Luo ◽  
Gan Yan ◽  
Yi Liu ◽  
...  
Keyword(s):  
Big Data ◽  
Health Monitoring ◽  
Strain Sensors ◽  
Cloud Platform ◽  
Wide Range ◽  
Highly Stretchable

scholarly journals Force transformation in spider strain sensors: white light interferometry

2011 ◽  
Vol 9 (71) ◽  
pp. 1254-1264 ◽  
Author(s):  
Clemens F. Schaber ◽  
Stanislav N. Gorb ◽  
Friedrich G. Barth
Keyword(s):  
White Light ◽  
Stimulus Range ◽  
Strain Sensors ◽  
Sensory Threshold ◽  
White Light Interferometry ◽  
Wide Range ◽  
Force Transformation ◽  
Slit Length ◽  
Stimulus Transformation ◽  
The Individual

Scanning white light interferometry and micro-force measurements were applied to analyse stimulus transformation in strain sensors in the spider exoskeleton. Two compound or ‘lyriform’ organs consisting of arrays of closely neighbouring, roughly parallel sensory slits of different lengths were examined. Forces applied to the exoskeleton entail strains in the cuticle, which compress and thereby stimulate the individual slits of the lyriform organs. (i) For the proprioreceptive lyriform organ HS-8 close to the distal joint of the tibia, the compression of the slits at the sensory threshold was as small as 1.4 nm and hardly more than 30 nm, depending on the slit in the array. The corresponding stimulus forces were as small as 0.01 mN. The linearity of the loading curve seems reasonable considering the sensor's relatively narrow biological intensity range of operation. The slits' mechanical sensitivity (slit compression/force) ranged from 106 down to 13 nm mN −1 , and gradually decreased with decreasing slit length. (ii) Remarkably, in the vibration-sensitive lyriform organ HS-10 on the metatarsus, the loading curve was exponential. The organ is thus adapted to the detection of a wide range of vibration amplitudes, as they are found under natural conditions. The mechanical sensitivities of the two slits examined in this organ in detail differed roughly threefold (522 and 195 nm mN −1 ) in the biologically most relevant range, again reflecting stimulus range fractionation among the slits composing the array.

The Anthropocene’s dating problem: Insights from the geosciences and the humanities

2018 ◽  
Vol 5 (2) ◽  
pp. 107-119 ◽  
Author(s):  
Kyle Nichols ◽  
Bina Gogineni
Keyword(s):  
Social Sciences ◽  
Social Science ◽  
Human Activities ◽  
Natural Sciences ◽  
Earth System ◽  
Social Scientists ◽  
The Earth ◽  
Wide Range ◽  
Geologic Record ◽  
Earth’S System

The Anthropocene, generally defined, is the time when human activities have a significant impact on the Earth System. However, the natural sciences, the humanities, and the social sciences have different understandings of how and when human activities affected the Earth System. Humanities and social science scholars tend to approach the Anthropocene from a wide range of moral-political concerns including differential responsibility for the change in the Earth System and social implications going forward. Geologists, on the other hand, see their work as uninfluenced by such considerations, instead concerning themselves with empirical data that might point to a ‘golden spike’ in the geologic record – the spike indicating a change in the Earth System. Thus, the natural sciences and the humanities/social sciences are incongruent in two important ways: (1) different motivations for establishing a new geologic era, and (2) different parameters for identifying it. The Anthropocene discussions have already hinted at a paradigm shift in how to define geologic time periods. Several articles suggest a mid-20th century commencement of the Anthropocene based on stratigraphic relationships identified in concert with knowledge of human history. While some geologists in the Anthropocene Working Group have stated that the official category should be useful well beyond geology, they continue to be guided by the stratigraphic conventions of defining the epoch. However, the methods and motivations that govern stratigraphers are different from those that govern humanists and social scientists. An Anthropocene defined by stratigraphic convention would supersede many of the humanities/social science perspectives that perhaps matter more to mitigating and adapting to the effects of humans on Earth’s System. By this reasoning, the impetus for defining the Anthropocene ought to be interdisciplinary, as traditional geologic criteria for defining the temporal scale might not meet the aspirations of a broad range of Anthropocene thinkers.

Biocompatible ionic liquids: fundamental behaviours and applications

2019 ◽  
Vol 48 (15) ◽  
pp. 4317-4335 ◽  
Author(s):  
Joana M. Gomes ◽  
Simone S. Silva ◽  
Rui L. Reis
Keyword(s):  
Ionic Liquids ◽  
Wide Range

The bio- and eco-friendly nature of biocompatible ionic liquids contributes to their widespread use in a wide range of fields.

scholarly journals Ionic liquids. Green solvents for the future

2000 ◽  
Vol 72 (7) ◽  
pp. 1391-1398 ◽  
Author(s):  
Martyn J. Earle ◽  
Kenneth R. Seddon
Keyword(s):  
Ionic Liquids ◽  
Vapor Pressure ◽  
Chemical Reactions ◽  
Green Solvents ◽  
Wide Range ◽  
The Future

Ionic liquids, being composed entirely of ions, were once mainly of interest to electrochemists. Recently, however, it has become apparent that, inter alia, their lack of measurable vapor pressure characterizes them as green solvents, and that a wide range of chemical reactions (reviewed here) can be performed in them.

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