PubAg

Main content area

You searched for: Subject "portable equipment" Remove constraint Subject: "portable equipment"
Start Over

Search

524  Search Results

« Previous | 1 - 20 of 524 |
Number of results to display per page

Search Results

1. Facile and Scalable Fabrication of Flexible Reattachable Ionomer Nanopatterns by Continuous Multidimensional Nanoinscribing and Low-temperature Roll Imprinting

Author:
Oh, Dong Kyo; Nguyen, Dang Thuan; Lee, Seungjo; Ko, Pyeongsam; Heo, Gi-Seok; Yun, Chang-Hun; Ha, Tae-Won; Youn, Hongseok; Ok, Jong G.
Source:
ACS applied materials & interfaces 2019 v.11 no.12 pp. 12070-12076
ISSN:
1944-8252
Subject:
portable equipment,   etc   ; adhesion; polymers; temperature; thermosensitivity;     Show all 5 Subjects
Abstract:
... We develop a facile route to the scalable fabrication of flexible reattachable ionomer nanopatterns (RAINs) by continuous nanoinscribing and low-temperature roll imprinting, which are repeatedly attachable to and detachable from arbitrarily shaped surfaces. First, by sequentially performing continuous nanoinscribing over a polymer substrate along the multiple directions, we readily create the mult ...
DOI:
10.1021/acsami.8b21915

2. A Simple Automated Laser Profile Meter

Author:
Polyakov, V.; Nearing, M.
Source:
Soil Science Society of America journal 2019 v.83 no.2 pp. 327-331
ISSN:
0361-5995
Subject:
portable equipment,   etc   ; automation; lidar; lighting; roughness; soil;     Show all 6 Subjects
Abstract:
... An automated profile meter with vertical precision of ±0.2 mm was built to measure soil surface elevations. It consists of a laser distance meter mounted on an automated linear motion system. Operation and data logging is con- ducted wirelessly using a Bluetooth enabled mobile device. The profile meter performed well under various lighting conditions and on a variety of natural materials, with the ...
Handle:
10113/6471240
DOI:
10.2136/sssaj2018.10.0378

3. Comparison of different body measurement techniques: 3D stationary scanner, 3D handheld scanner, and tape measurement

Author:
Xia, Sibei; Guo, Siming; Li, Jiayin; Istook, Cynthia
Source:
The journal of the Textile Institute 2019 v.110 no.8 pp. 1103-1113
ISSN:
1754-2340
Subject:
portable equipment,   etc   ; body measurements; computer software; fabrics; scanners; textile industry;     Show all 6 Subjects
Abstract:
... Body measurements play an import role in pattern generation and size determination. Traditionally, body measurements were captured with tape measures. The tape measure technique is often time-consuming. Nowadays, three-dimensional (3D) stationary whole-body scanners are widely used in the apparel industry to collect body measurements. The stationary scanner has good performance on efficiency, vali ...
DOI:
10.1080/00405000.2018.1541437

4. BIM-PoseNet: Indoor camera localisation using a 3D indoor model and deep learning from synthetic images

Author:
Acharya, Debaditya; Khoshelham, Kourosh; Winter, Stephan
Source:
ISPRS journal of photogrammetry and remote sensing 2019 v.150 pp. 245-258
ISSN:
0924-2716
Subject:
portable equipment,   etc   ; cameras; global positioning systems; image analysis; models;     Show all 5 Subjects
Abstract:
... The ubiquity of cameras built in mobile devices has resulted in a renewed interest in image-based localisation in indoor environments where the global navigation satellite system (GNSS) signals are not available. Existing approaches for indoor localisation using images either require an initial location or need first to perform a 3D reconstruction of the whole environment using structure-from-moti ...
DOI:
10.1016/j.isprsjprs.2019.02.020

5. A Portable Atomic Emission Spectrometer Based on a Drop-Spark Discharge for Analyzing Solutions

Author:
Yagov, V. V.; Korotkov, A. S.; Zhirkov, A. A.; Pogonin, V. I.; Zuev, B. K.
Source:
Journal of analytical chemistry 2019 v.74 no.3 pp. 270-275
ISSN:
1061-9348
Subject:
portable equipment,   etc   ; atomic absorption spectrometry; chemical analysis; spectrometers;     Show all 4 Subjects
Abstract:
... A portable instrument for analysis of solutions by atomic emission spectrometry is described based on recording the emission spectrum of a drop-spark discharge using a Maya 2000 Pro spectrometer (Ocean Optics, United States). ...
DOI:
10.1134/S1061934819030122

6. BIM-Tracker: A model-based visual tracking approach for indoor localisation using a 3D building model.

Author:
Acharya, Debaditya; Ramezani, Milad; Khoshelham, Kourosh; Winter, Stephan
Source:
ISPRS journal of photogrammetry and remote sensing 2019
ISSN:
0924-2716
Subject:
portable equipment,   etc   ; buildings; cameras; data collection; infrastructure; mobile telephones; models;     Show all 7 Subjects
Abstract:
... This article presents an accurate and robust visual indoor localisation approach that not only is infrastructure-free, but also avoids accumulation error by taking advantage of 1) the widespread ubiquity of mobile devices with cameras and 2) the availability of 3D building models for most modern buildings. Localisation is performed by matching image sequences captured by a camera, with a 3D model ...
DOI:
10.1016/j.isprsjprs.2019.02.014

7. A 3D-printed portable device for field deployment of living biosensors

Author:
Movizzo, Paul G.; Ruder, Warren C.; Long, Zhicheng
Source:
MethodsX 2019 v.6 pp. 1331-1335
ISSN:
2215-0161
Subject:
portable equipment,   etc   ; biomarkers; biosafety; biosensors; genetically modified organisms; risk;     Show all 6 Subjects
Abstract:
... Living biosensors typically use genetically modified organisms (GMOs) to detect infectious biomarkers in clinical samples. GMOs are prohibited to be released into the environment by many laws, which limits the application of living biosensors outside laboratory settings. Here, we reported a robust 3D-printed device that eliminates the risk of exposure of GMOs to potential users and the environment ...
DOI:
10.1016/j.mex.2019.05.018

8. From squiggle to basepair: computational approaches for improving nanopore sequencing read accuracy

Author:
Rang, Franka J.; Kloosterman, Wigard P.; de Ridder, Jeroen
Source:
Genome biology 2018 v.19 no.1 pp. 90
ISSN:
1474-760X
Subject:
portable equipment,   etc   ; chemistry; nanopores; translation (genetics);     Show all 4 Subjects
Abstract:
... Nanopore sequencing is a rapidly maturing technology delivering long reads in real time on a portable instrument at low cost. Not surprisingly, the community has rapidly taken up this new way of sequencing and has used it successfully for a variety of research applications. A major limitation of nanopore sequencing is its high error rate, which despite recent improvements to the nanopore chemistry ...
DOI:
10.1186/s13059-018-1462-9

9. The digital ‘connected’ earth: open technology for providing location-based services on degraded communication environments

Author:
Piedrafita, Ramón; Béjar, Rubén; Blasco, Rubén; Marco, Alvaro; Zarazaga-Soria, F. Javier
Source:
International journal of digital earth 2018 v.11 no.8 pp. 761-782
ISSN:
1753-8955
Subject:
portable equipment,   etc   ; databases; information exchange; wireless technology;     Show all 4 Subjects
Abstract:
... In the current world, it is easy to listen that everybody and everything is connected. Over this connected world, the concept of location-based services has grown in order to provide digital services in everyplace and at every time. Nevertheless, this is not 100% true because the connection is not guaranteed for many people and in many places. These are the Degraded Communications Environments (DC ...
DOI:
10.1080/17538947.2017.1356387

10. The requirements for low-temperature plasma ionization support miniaturization of the ion source

Author:
Kiontke, Andreas; Holzer, Frank; Belder, Detlev; Birkemeyer, Claudia
Source:
Analytical and bioanalytical chemistry 2018 v.410 no.16 pp. 3715-3722
ISSN:
1618-2642
Subject:
portable equipment,   etc   ; electrodes; helium; ionization; mass spectrometry;     Show all 5 Subjects
Abstract:
... Ambient ionization mass spectrometry (AI-MS), the ionization of samples under ambient conditions, enables fast and simple analysis of samples without or with little sample preparation. Due to their simple construction and low resource consumption, plasma-based ionization methods in particular are considered ideal for use in mobile analytical devices. However, systematic investigations that have at ...
DOI:
10.1007/s00216-018-1033-7

11. Detection platforms for point-of-care testing based on colorimetric, luminescent and magnetic assays: A review

Author:
Yang, Jinchuan; Wang, Kan; Xu, Hao; Yan, Wenqiang; Jin, Qinghui; Cui, Daxiang
Source:
Talanta 2019 v.202 pp. 96-110
ISSN:
0039-9140
Subject:
portable equipment,   etc   ; colorimetry; immunoaffinity chromatography; luminescence; magnetism; nanoparticles; point-of-care testing; rapid methods;     Show all 8 Subjects
Abstract:
... Along with the considerable potential and increasing demand of the point-of-care testing (POCT), corresponding detection platforms have attracted great interest in both academic and practical fields. The first few generations of conventional detection devices tend to be costly, complicated to operate and hard to move on account of early limitations in the level of technological development and rel ...
DOI:
10.1016/j.talanta.2019.04.054

12. Low-cost, Arduino-based, portable device for measurement of methane composition in biogas

Author:
Yang, Shunchang; Liu, Yikan; Wu, Na; Zhang, Yingxiu; Svoronos, Spyros; Pullammanappallil, Pratap
Source:
Renewable energy 2019 v.138 pp. 224-229
ISSN:
0960-1481
Subject:
portable equipment,   etc   ; anaerobic digesters; biogas; gas chromatography; glass; humidity; methane; temperature; thermal conductivity;     Show all 9 Subjects
Abstract:
... An inexpensive, portable device to measure methane content of biogas samples was constructed. The central component of the device was an MQ-4 methane sensor. This sensor, along with humidity, temperature and pressure sensors, was enclosed in an airtight glass jar and interfaced with a programmable Arduino Uno clone for data logging and operation. The sensor was able to detect methane within the ja ...
DOI:
10.1016/j.renene.2019.01.083

13. Rapid and sensitive capillary electrophoresis method for the analysis of Ecstasy in an oral fluid

Author:
Saar-Reismaa, Piret; Tretjakova, Anastassia; Mazina-Šinkar, Jekaterina; Vaher, Merike; Kaljurand, Mihkel; Kulp, Maria
Source:
Talanta 2019 v.197 pp. 390-396
ISSN:
0039-9140
Subject:
portable equipment,   etc   ; amphetamine; capillary electrophoresis; electrolytes; fluorescence; music; phosphoric acid; saliva; Estonia;     Show all 9 Subjects
Abstract:
... In the present study, a capillary electrophoresis method, with a native fluorescence detection for the quantification of three amphetamine derivatives, methylenedioxyamphetamine (MDA), 3,4-methylenedioxy-methamphetamine (MDMA), methylenedioxyethylamphetamine (MDEA) in an oral fluid is described. The reported CE method has made it possible to assess Ecstasy abuse in approximately 15 min, including ...
DOI:
10.1016/j.talanta.2019.01.029

14. Solid phase colorimetric determination of iodine in food grade salt using polymethacrylate matrix

Author:
Gavrilenko, Nataliya A.; Fedan, Dmitrii A.; Saranchina, Nadezhda V.; Gavrilenko, Mikhail A.
Source:
Food chemistry 2019 v.280 pp. 15-19
ISSN:
0308-8146
Subject:
portable equipment,   etc   ; absorbance; color; colorimetry; iodine; mineral water; polymethylmethacrylate; solid phase extraction;     Show all 8 Subjects
Abstract:
... A novel colorimetric sensor has been proposed for sensitive and accurate detection of iodine forms using polymethacrylate matrix, which also has the outlook for use with samples without pre-treatment and is suitable to fit in a portable instrument for in situ iodine analysis. This determination method is based on interaction of polymethacrylate matrix with iodine forms followed by measurement of a ...
DOI:
10.1016/j.foodchem.2018.12.037

15. Hybrid Integration of Carbon Nanotubes and Transition Metal Dichalcogenides on Cellulose Paper for Highly Sensitive and Extremely Deformable Chemical Sensors

Author:
Lee, Woo Sung; Choi, Jungwook
Source:
ACS applied materials & interfaces 2019 v.11 no.21 pp. 19363-19371
ISSN:
1944-8252
Subject:
portable equipment,   etc   ; carbon nanotubes; cellulose; deformation; dispersions; molybdenum disulfide; nitrogen dioxide; paper; vapors;     Show all 9 Subjects
Abstract:
... Sensitive and deformable chemical sensors manufactured by a low-cost process are promising as they are disposable, can be applied on curved, complex structures, and provide environmental information to users. Although many nanomaterial-based flexible sensors have been suggested to meet these demands, their limited chemical sensitivity and mechanical flexibility pose challenges. Here, a highly defo ...
DOI:
10.1021/acsami.9b03296

16. Flexible Ferroelectret Polymer for Self-Powering Devices and Energy Storage Systems

Author:
Cao, Yunqi; Figueroa, José; Pastrana, Juan J.; Li, Wei; Chen, Zhiqiang; Wang, Zhong Lin; Sepúlveda, Nelson
Source:
ACS applied materials & interfaces 2019 v.11 no.19 pp. 17400-17409
ISSN:
1944-8252
Subject:
portable equipment,   etc   ; batteries; clean energy; electric power; electronics; energy conversion; forces; management systems; polymers;     Show all 9 Subjects
Abstract:
... Applying flexible materials for energy scavenging from ambient mechanical vibrations is a clean energy solution that can help alleviate electrical power demands in portable devices and wearable electronics. This work presents fundamental studies on a flexible ferroelectret polymer with a strong piezoelectric effect and its interface with self-powered and energy storage systems. A single-layered de ...
DOI:
10.1021/acsami.9b02233

17. Wearable piezoelectric nanogenerators based on reduced graphene oxide and in situ polarization-enhanced PVDF-TrFE films

Author:
Hu, Xiaoran; Ding, Zhitian; Fei, Lixun; Xiang, Yong; lin, Yuan
Source:
Journal of materials science 2019 v.54 no.8 pp. 6401-6409
ISSN:
0022-2461
Subject:
portable equipment,   etc   ; crystal structure; electric potential; graphene oxide; heat; hydrogen bonding;     Show all 6 Subjects
Abstract:
... PVDF-TrFE-based wearable nanogenerators were designed and fabricated with enhanced performances via reduced graphene oxides (rGO) and in situ electric polarization. Our laboratory-made polarization system may complete the in situ poling of PVDF-TrFE films in 5 min without heating, which has the advantages of high production efficiency, excellent piezoelectric performances, and favorable uniformity ...
DOI:
10.1007/s10853-019-03339-5

18. Defining Adherence to Mobile Dietary Self-Monitoring and Assessing Tracking Over Time: Tracking at Least Two Eating Occasions per Day Is Best Marker of Adherence within Two Different Mobile Health Randomized Weight Loss Interventions

Author:
Turner-McGrievy, Gabrielle M.; Dunn, Caroline Glagola; Wilcox, Sara; Boutté, Alycia K.; Hutto, Brent; Hoover, Adam; Muth, Eric
Source:
Journal of the Academy of Nutrition and Dietetics 2019
ISSN:
2212-2672
Subject:
portable equipment,   etc   ; diet; nutritional intervention; prediction; regression analysis; variance; weight loss;     Show all 7 Subjects
Abstract:
... Mobile dietary self-monitoring methods allow for objective assessment of adherence to self-monitoring; however, the best way to define self-monitoring adherence is not known.The objective was to identify the best criteria for defining adherence to dietary self-monitoring with mobile devices when predicting weight loss.This was a secondary data analysis from two 6-month randomized trials: Dietary I ...
DOI:
10.1016/j.jand.2019.03.012

19. Challenges and perspectives in the application of isothermal DNA amplification methods for food and water analysis

Author:
Martzy, Roland; Kolm, Claudia; Krska, Rudolf; Mach, Robert L.; Farnleitner, Andreas H.; Reischer, Georg H.
Source:
Analytical and bioanalytical chemistry 2019 v.411 no.9 pp. 1695-1702
ISSN:
1618-2642
Subject:
portable equipment,   etc   ; DNA; diagnostic techniques; human resources; ionic liquids; polymerase chain reaction; water quality analysis;     Show all 7 Subjects
Abstract:
... Molecular diagnostic tools in the field of food and water quality analysis are becoming increasingly widespread. Usually, based on DNA amplification techniques such as polymerase chain reaction (PCR), these methods are highly sensitive and versatile but require well-equipped laboratories and trained personnel. To reduce analysis time and avoid expensive equipment, isothermal DNA amplification meth ...
DOI:
10.1007/s00216-018-1553-1

20. Evaluation of a portable device for assessment of motility in stallion semen

Author:
Buss, Tammo; Aurich, Jörg; Aurich, Christine
Source:
Reproduction in domestic animals 2019 v.54 no.3 pp. 514-519
ISSN:
0936-6768
Subject:
portable equipment,   etc   ; confidence interval; horse breeding; insemination; semen; sperm concentration; sperm motility; spermatozoa; stallions;     Show all 9 Subjects
Abstract:
... In horse breeding, quality assessment of semen before insemination is often requested. Non‐laboratory‐based techniques for objective analysis of sperm motility are thus of interest. The aim of this study was evaluating a portable device for semen analysis (Ongo sperm test) and its comparison with computer‐assisted semen analysis (CASA). Semen was collected from 10 stallions, diluted to 100, 50 and ...
DOI:
10.1111/rda.13390