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1. Gradually varied flow profile based on adaptive pattern

Author:
Jahandar Malekabadi, Mohammad; Kalateh, Farhoud
Source:
ISH journal of hydraulic engineering 2019 v.25 no.2 pp. 223-231
ISSN:
2164-3040
Subject:
accuracy,   etc   ; equations; water flow;     Show all 3 Subjects
Abstract:
... The basic equation of gradually varied flow (GVF) describes gradual changes in its water surface elevation. One of the challenges of numerical integration is determining the appropriate integration spatial step size. In this study, the water surface elevations in GVF are calculated by adaptive Runge–Kutta method and adaptive Newton–Raphson method. The steps are calculated using error estimation du ...
DOI:
10.1080/09715010.2017.1408035

2. A comparative evaluation of five common pairwise tests of species association

Author:
Lavender, Thomas Michael; Schamp, Brandon S.; Arnott, Shelley E.; Rusak, James A.
Source:
Ecology 2019 v.100 no.4 pp. e02640
ISSN:
0012-9658
Subject:
accuracy,   etc   ; community structure; sampling; testing;     Show all 4 Subjects
Abstract:
... Researchers have long viewed patterns of species association as key to understanding the processes that structure communities. Community‐level tests of species association have received the most attention; however, pairwise species associations may offer greater opportunity for linking patterns to specific mechanisms. Although several tests of pairwise association have been developed, there remain ...
DOI:
10.1002/ecy.2640

3. Another look on region merging procedure from seed region shift for high-resolution remote sensing image segmentation

Author:
Zhang, Xueliang; Xiao, Pengfeng; Feng, Xuezhi; He, Guangjun
Source:
ISPRS journal of photogrammetry and remote sensing 2019 v.148 pp. 197-207
ISSN:
0924-2716
Subject:
accuracy,   etc   ; image analysis; remote sensing;     Show all 3 Subjects
Abstract:
... Region merging method is widely used for remote sensing image segmentation in Geographic Object-Based Image Analysis (GEOBIA) because of its simplicity and effectiveness. Instead of improving the merging strategy, similarity measure, and stopping rule for region merging method as usual, we aim at exploring the effectiveness of the seed region shift on region merging-based segmentation. Different r ...
DOI:
10.1016/j.isprsjprs.2019.01.007

4. A high fidelity haze removal algorithm for optical satellite images using progressive transmission estimation based on the dark channel prior

Author:
Huang, Wei; Wang, Yueyun; Wang, Rui
Source:
International journal of remote sensing 2019 v.40 no.9 pp. 3486-3503
ISSN:
1366-5901
Subject:
accuracy,   etc   ; algorithms; image analysis; remote sensing;     Show all 4 Subjects
Abstract:
... In this paper, a high fidelity haze removal algorithm is proposed for optical satellite images by using progressive transmission estimation based on the dark channel prior (DCP). The transmission is estimated adaptively according to the histogram of the dark channel image and the constraint of maximum transmission. Then, the guided filter is used to refine the transmission to obtain a continuous t ...
DOI:
10.1080/01431161.2018.1547451

5. Analytical Solution for Fractional Gas Dynamics Equation

Author:
Raja Balachandar, S.; Krishnaveni, K.; Kannan, K.; Venkatesh, S. G.
Source:
National Academy science letters 2019 v.42 no.1 pp. 51-57
ISSN:
0250-541X
Subject:
accuracy,   etc   ; analytical methods; equations; gases; problem solving;     Show all 5 Subjects
Abstract:
... A new hybrid method based on fractional order shifted Legendre polynomials is constructed in the present study to obtain the analytical solution of a fractional gas dynamics equation. The theoretical analysis such as convergence analysis and error bound for the proposed technique have been demonstrated. The illustrated examples are shown to test the ability and accuracy of the proposed method. ...
DOI:
10.1007/s40009-018-0662-x

6. Discrete Shearlet Transform Based Speckle Noise Removal in Ultrasound Images

Author:
Ahmed, L. Jubair
Source:
National Academy science letters 2018 v.41 no.2 pp. 91-95
ISSN:
0250-541X
Subject:
accuracy,   etc   ; image analysis; texture; ultrasonography;     Show all 4 Subjects
Abstract:
... Speckle noise removal plays an important role in ultrasound image diagnosis. Existing speckle noise removal techniques have drawbacks such as lose of edge information, texture information and inability to remove low frequency noise. To overcome these issues, a new discrete shearlet transform (DST) with nonlinear diffusion is proposed in this paper. DST comprises of localization, directionality and ...
DOI:
10.1007/s40009-018-0620-7

7. The Ultimate qPCR Experiment: Producing Publication Quality, Reproducible Data the First Time

Author:
Taylor, Sean C.; Nadeau, Katia; Abbasi, Meysam; Lachance, Claude; Nguyen, Marie; Fenrich, Joshua
Source:
Trends in biotechnology 2019 v.37 no.7 pp. 761-774
ISSN:
0167-7799
Subject:
accuracy,   etc   ; nucleic acids; quantitative polymerase chain reaction; reproducibility;     Show all 4 Subjects
Abstract:
... Quantitative PCR (qPCR) is one of the most common techniques for quantification of nucleic acid molecules in biological and environmental samples. Although the methodology is perceived to be relatively simple, there are a number of steps and reagents that require optimization and validation to ensure reproducible data that accurately reflect the biological question(s) being posed. This review arti ...
DOI:
10.1016/j.tibtech.2018.12.002

8. Box-level segmentation supervised deep neural networks for accurate and real-time multispectral pedestrian detection

Author:
Cao, Yanpeng; Guan, Dayan; Wu, Yulun; Yang, Jiangxin; Cao, Yanlong; Yang, Michael Ying
Source:
ISPRS journal of photogrammetry and remote sensing 2019 v.150 pp. 70-79
ISSN:
0924-2716
Subject:
accuracy,   etc   ; cameras; data collection; detectors; monitoring; neural networks; prediction;     Show all 7 Subjects
Abstract:
... Effective fusion of complementary information captured by multi-modal sensors (visible and infrared cameras) enables robust pedestrian detection under various surveillance situations (e.g., daytime and nighttime). In this paper, we present a novel box-level segmentation supervised learning framework for accurate and real-time multispectral pedestrian detection by incorporating features extracted i ...
DOI:
10.1016/j.isprsjprs.2019.02.005

9. Deterministic parallel analysis: an improved method for selecting factors and principal components

Author:
Dobriban, Edgar; Owen, Art B.
Source:
Journal of the Royal Statistical Society 2019 v.81 no.1 pp. 163-183
ISSN:
1369-7412
Subject:
accuracy,   etc   ; equations; factor analysis; genome; humans; models; principal component analysis;     Show all 7 Subjects
Abstract:
... Factor analysis and principal component analysis are used in many application areas. The first step, choosing the number of components, remains a serious challenge. Our work proposes improved methods for this important problem. One of the most popular state of the art methods is parallel analysis (PA), which compares the observed factor strengths with simulated strengths under a noise‐only model. ...
DOI:
10.1111/rssb.12301

10. Possible influences on bullet trajectory deflection in ballistic gelatine

Author:
Riva, Fabiano; Kerkhoff, Wim; Bolck, Annabel; Mattijssen, Erwin J.A.T.
Source:
Forensic science international 2017 v.271 pp. 107-112
ISSN:
0379-0738
Subject:
accuracy,   etc   ; forensic sciences; gelatin;     Show all 3 Subjects
Abstract:
... The influence of the distance to the top and bottom of a gelatine block and to bullet tracks from previously fired shots on a bullet’s trajectory, when passing through ballistic gelatine, was studied. No significant difference in deflection was found when trajectories of 9mm Luger bullets, fired at a 3.5cm distance to the top and bottom of a gelatine block and to bullet tracks from previously fire ...
DOI:
10.1016/j.forsciint.2016.12.030

11. An analysis of the in-cylinder pressure resonance excitation in internal combustion engines

Author:
Guardiola, C.; Pla, B.; Bares, P.; Barbier, A.
Source:
Applied energy 2018 v.228 pp. 1272-1279
ISSN:
0306-2619
Subject:
accuracy,   etc   ; combustion; internal combustion engines; oscillation;     Show all 4 Subjects
Abstract:
... This paper analyses the in-cylinder pressure oscillations in internal combustion engines, which are initiated by combustion and resonate during the expansion stroke. A specific mathematical tool, which takes into account the resonant frequency theory, has been developed to determine the resonance intensity evolution from the in-cylinder pressure signal.Two engines, a conventional spark-ignited (SI ...
DOI:
10.1016/j.apenergy.2018.06.157

12. Methods for quantification of systematic distance deviations under incidence angle with scanning total stations

Author:
Zámečníková, Miriam; Neuner, Hans
Source:
ISPRS journal of photogrammetry and remote sensing 2018 v.144 pp. 268-284
ISSN:
0924-2716
Subject:
accuracy,   etc   ; angle of incidence; engineering; granite; uncertainty;     Show all 5 Subjects
Abstract:
... If scanning total stations (TLS+TS) are used in scanning mode for high accurate engineering applications, the systematic influence of the incidence angle (IA) on the reflectorless distance measurement has to be eliminated. At present, methods for quantifying the systematic distance deviations under IA are missing because the measured points are not reproducible. In this paper, three such methods a ...
DOI:
10.1016/j.isprsjprs.2018.07.008

13. Design of seedlings separation device with reciprocating movement seedling cups and its controlling system of the full-automatic plug seedling transplanter

Author:
Yang, Qizhi; Xu, Li; Shi, Xinyi; Ibrar, Ahamd; Mao, Hanping; Hu, Jianping; Han, Lvhua
Source:
Computers and electronics in agriculture 2018 v.147 pp. 131-145
ISSN:
0168-1699
Subject:
accuracy,   etc   ; automation; equipment design; seedlings; sorting;     Show all 5 Subjects
Abstract:
... In this paper, it is described the design of seedling separation device with reciprocating movement of seedling cups and control system of the full automatic plug seedling transplanter. The analysis of the research indicates that the specific strategic path seedling is plane and corresponding control system is formulated. It is put forward special intention on the specific designing of the main co ...
DOI:
10.1016/j.compag.2018.02.004

14. The importance of accurately correcting for the natural abundance of stable isotopes

Author:
Midani, Firas S.; Wynn, Michelle L.; Schnell, Santiago
Source:
Analytical biochemistry 2017 v.520 pp. 27-43
ISSN:
0003-2697
Subject:
accuracy,   etc   ; isotope labeling; stable isotopes;     Show all 3 Subjects
Abstract:
... The use of isotopically labeled tracer substrates is an experimental approach for measuring in vivo and in vitro intracellular metabolic dynamics. Stable isotopes that alter the mass but not the chemical behavior of a molecule are commonly used in isotope tracer studies. Because stable isotopes of some atoms naturally occur at non-negligible abundances, it is important to account for the natural a ...
DOI:
10.1016/j.ab.2016.12.011
PubMed:
27989585
PubMed Central:
PMC5343595

15. High-speed near-field fluorescence microscopy combined with high-speed atomic force microscopy for biological studies

Author:
Umakoshi, Takayuki; Fukuda, Shingo; Iino, Ryota; Uchihashi, Takayuki; Ando, Toshio
Source:
Biochimica et biophysica acta 2019
ISSN:
0304-4165
Subject:
accuracy,   etc   ; DNA; atomic force microscopy; fluorescence microscopy; image analysis; light microscopy; proteins; research; video recording;     Show all 9 Subjects
Abstract:
... High-speed atomic force microscopy (HS-AFM) has successfully visualized a variety of protein molecules during their functional activity. However, it cannot visualize small molecules interacting with proteins and even protein molecules when they are encapsulated. Thus, it has been desired to achieve techniques enabling simultaneous optical/AFM imaging at high spatiotemporal resolution with high cor ...
DOI:
10.1016/j.bbagen.2019.03.011

16. Optimizing accuracy of sampling protocols to measure nutrient content of solid manure

Author:
Miller, Christine M.F.; Heguy, Jennifer M.; Karle, Betsy M.; Price, Patricia L.; Meyer, Deanne
Source:
Waste management 2019 v.85 pp. 121-130
ISSN:
0956-053X
Subject:
accuracy,   etc   ; cropland; dairy manure; farmers; nutrient content; phosphorus; potassium; protocols; sampling; total nitrogen; waste management; California;     Show all 12 Subjects
Abstract:
... Precise applications of manure to cropland can help optimize productivity and minimize environmental nutrient losses. Applying manure precisely is a challenge because the nutrient content of manures is inherently variable and the accuracy of sampling protocols are unknown. This study aimed to quantify the accuracy of sampling protocols for static solid manure piles considering both the number and ...
DOI:
10.1016/j.wasman.2018.12.021

17. Robot navigation in orchards with localization based on Particle filter and Kalman filter

Author:
Blok, Pieter M.; van Boheemen, Koen; van Evert, Frits K.; IJsselmuiden, Joris; Kim, Gook-Hwan
Source:
Computers and electronics in agriculture 2019 v.157 pp. 261-269
ISSN:
0168-1699
Subject:
accuracy,   etc   ; algorithms; apples; fruits; labor; lidar; models; orchards; robots; scanners; trees;     Show all 11 Subjects
Abstract:
... Fruit production in orchards currently relies on high labor inputs. Concerns arising from the increasing labor cost and shortage of labor can be mitigated by the availability of an autonomous orchard robot. A core feature for every mobile orchard robot is autonomous navigation, which depends on sensor-based robot localization in the orchard environment. This research validated the applicability of ...
DOI:
10.1016/j.compag.2018.12.046

18. Burger and Seven-Order KdV Equations Using Modified Differential Transform Method

Author:
Lin, Yinwei; Chen, Cha’o-Kuang
Source:
National Academy science letters 2016 v.39 no.5 pp. 353-357
ISSN:
0250-541X
Subject:
accuracy,   etc   ; equations; problem solving;     Show all 3 Subjects
Abstract:
... In the present paper, a modified differential transform method (DTM) and DTM with finite difference method (FDM) has been given to solve Burger and seven-order KdV equations. Traditionally, DTM is a tool to solve differential and integral equations. However, Lax–Sawada–Kotera–Ito seven-order KdV equations are usually very complicated, so the calculation of the numerical solution becomes difficult. ...
DOI:
10.1007/s40009-016-0462-0

19. Region of interest extraction via common salient feature analysis and feedback reinforcement strategy for remote sensing images

Author:
Zhang, Libao; Sun, Qiaoyue; Zhang, Jue
Source:
GIScience & remote sensing 2018 v.55 no.5 pp. 745-762
ISSN:
1943-7226
Subject:
accuracy,   etc   ; image analysis; model validation; models; remote sensing;     Show all 5 Subjects
Abstract:
... Saliency detection is an effective approach to extract regions of interest (ROIs) for remote sensing images. However, existing saliency detection models mainly focus on ROI extraction from a single image and usually are not able to produce satisfactory results because of complex background interference in remote sensing images. The employment of mutual information in a set of remote sensing images ...
DOI:
10.1080/15481603.2018.1454391

20. Reliable and accurate extraction of Hamaker constants from surface force measurements

Author:
Miklavcic, S.J.
Source:
Journal of colloid and interface science 2018 v.524 pp. 263-266
ISSN:
0021-9797
Subject:
accuracy,   etc   ; equations; least squares; van der Waals forces;     Show all 4 Subjects
Abstract:
... A simple and accurate closed-form expression for the Hamaker constant that best represents experimental surface force data is presented. Numerical comparisons are made with the current standard least squares approach, which falsely assumes error-free separation measurements, and a nonlinear version assuming independent measurements of force and separation are subject to error. The comparisons demo ...
DOI:
10.1016/j.jcis.2018.04.023