Search results: 64,289 results (approx.)

1. Mapping and parsing text input for data.

Increasingly, data are becoming available about the distributions of organisms around the world and are being collated as freely available online resources in various formats. This chapter introduces the maptools library and plot distributions of taxa at country level on maps.

Author(s) : Quicke, D.; Butcher, B. A.; Welton, R. K.

Book chapter : Practical R for biologists: an introduction 2021 pp.240-256

2. Detection and classification of damaged wheat kernels based on progressive neural architecture search.

Quantity and quality of grain are both closely related to national development and social stability. Grain is lost during storage due to mildew and insects. Detection of damaged grain kernels not only can reduce the loss of grain, but also protect human beings from diseases caused by damaged grain. ...

Author(s) : Yang XiaoJing; Guo Min; Lyu QiongShuai; Ma Miao

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Biosystems Engineering 2021 Vol.208 pp.176-185

3. Image-based size estimation of broccoli heads under varying degrees of occlusion.

The growth and the harvestability of a broccoli crop is monitored by the size of the broccoli head. This size estimation is currently done by humans, and this is inconsistent and expensive. The goal of our work was to develop a software algorithm that can estimate the size of field-grown broccoli...

Author(s) : Blok, P. M.; Henten, E. J. van; Evert, F. K. van; Kootstra, G.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Biosystems Engineering 2021 Vol.208 pp.213-233 ref.36

4. Development of pixel-wise u-net model to assess performance of cereal sowing.

Estimating the plant population after the emergence of plants seems to be the most accurate way to make a fair judgment about the quality of the sowing across a field. A pixel-level classification model based on deep learning methods was used to predict each pixel in the image to recognise the...

Author(s) : Karimi, H.; Navid, H.; Seyedarabi, H.; Jørgensen, R. N.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Biosystems Engineering 2021 Vol.208 pp.260-271

5. A cnn-based lightweight ensemble model for detecting defective carrots.

Carrot grading plays a crucial role in producing high-competitive carrot products. However, carrot grading mainly depends on manual work nowadays, and this unreliable situation leads to high labor consumption, low efficiency, and unstable standard. In this study, a lightweight model (CarrotNet)...

Author(s) : Xie WeiJun; Wei Shuo; Zheng ZhaoHui; Yang DeYong

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Biosystems Engineering 2021 Vol.208 pp.287-299

6. Machine learning-based crop recognition from aerial remote sensing imagery.

Timely and accurate acquisition of crop distribution and planting area information is important for making agricultural planning and management decisions. This study employed aerial imagery as a data source and machine learning as a classification tool to statically and dynamically identify crops...

Author(s) : Tian YanQin; Yang ChengHai; Huang WenJiang; Tang Jia; Li XingRong; Zhang Qing

Publisher : Higher Education Press, Beijing, China

Journal article : Frontiers of Earth Science 2021 Vol.15 No.1 pp.54-69 ref.many

7. Geometric and fractal characterization of pore systems in the upper Triassic dolomites based on image processing techniques (example from Žumberak Mts, NW Croatia).

Karst aquifers are important sources of thermal and groundwater in many parts of the world, such as the Alpine-Dinaric-Carpathian region in Europe. The Upper Triassic dolomites are regionally recognized thermal and groundwater aquifers but also hydrocarbon reservoirs. They are characterized by...

Author(s) : Pavičić, I.; Briševac, Z.; Vrbaški, A.; Grgasović, T.; Duić, Ž.; Šijak, D.; Dragičević, I.

Publisher : MDPI AG, Basel, Switzerland

Journal article : Sustainability 2021 Vol.13 No.14 ref.83

8. Image-based nutrient estimation for Chinese dishes using deep learning.

Food image recognition systems facilitate dietary assessment and in turn track users' dietary behaviors. However, due to the diversity of Chinese food, a quick and accurate food image recognizing is a particularly challenging task. The success of deep learning in computer vision inspired us to...

Author(s) : Ma PeiHua; Lau ChunPong; Yu Ning; Li An; Liu Ping; Wang Qin; Sheng JiPing

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Food Research International 2021 Vol.147

9. A reaction-based colorimetric and ratiometric chemosensor for imaging identification of HClO in live cells, mung bean sprouts, and paper strips.

Hypochlorous acid (HClO) as well as its ionic form (ClO-), representative of reactive oxygen species (ROS), are essential players in all sorts of biological processes. The abnormal level of each can lead to the onset of various diseases. Besides, Sodium hypochlorite, a commonly-used bleaching agent ...

Author(s) : Wang YanLei; Ding Feng; Sun XiaoShuai; Chen ShiJin; Huang HuaRong; Chen Hong

Publisher : Elsevier B.V., Amsterdam, Netherlands

Journal article : Talanta 2021 Vol.234

10. Digital evaluation of the leaf wall area of the grapevine (Vitis vinifera cv. sauvignon) by using LIDAR measuring technology.

A dosage rate reduction of plant protection products mixed with water, i.e. spray mixture, in a prescribed concentration in the vineyard will only be possible in the future, if the natural characteristics of vine canopy structures (leaf wall area) and canopy management are taken into account. In a...

Author(s) : Berk, P.; Sečnik, M.; Krajnc, A. U.; Stajnko, D.

Publisher : Zadružna Štampa, Zagreb, Croatia

Journal article : Glasnik Zaštite Bilja 2021 Vol.44 No.4 pp.74-81 ref.18

11. Astrobiology and insects exposure to stratosphere conditions - histrion missions.

Astrobiology (formerly exobiology) is an interdisciplinary field of research that deals with the living universe. Astrobiology represents the search for extraterrestrial life through in situ research, spectroscopy of solar and extrasolar planetary atmospheres, and the search for extraterrestrial...

Foreign Title :Astrobiologija i izloženost kukaca stratosfernim uvjetima- misije histrion.

Author(s) : Gašparić, H. V.; Bažok, R.; Lemić, D.; Čačija, M.; Tumpić, M.; Lađarević, I.; Erman, G.; Balaško, M. K.

Publisher : Hrvatsko Društvo Biljne Zaštite, Zagreb, Croatia

Journal article : Fragmenta Phytomedica 2021 Vol.35 No.7 pp.1-16 ref.many

12. Visual data analysis techniques for early detection and classification of pests and plant stress summary.

Agricultural production is of great importance for human and animal nutrition. Since the need for food increases every day and the level of damage does not change much depending on the culture, new solutions need to be found. Every cultivation of plants is accompanied by the problem of its...

Foreign Title :Tehnike analize vizualnih podataka za rano otkrivanje i klasifikaciju štetnih organizama i biljnog stresa.

Author(s) : Kos, T.; Šikić, Z.; Zdrilić, A.; Marcelić, Š.; Pinto, A. G.; Zorica, M.; Franin, K.; Kolega, Š.

Publisher : Hrvatsko Društvo Biljne Zaštite, Zagreb, Croatia

Journal article : Fragmenta Phytomedica 2021 Vol.35 No.7 pp.34-58 ref.many

13. Inversion reflectance by apple tree canopy ground and unmanned aerial vehicle integrated remote sensing data.

To obtain accurate spatially continuous reflectance from Unmanned Aerial Vehicle (UAV) remote sensing, UAV data needs to be integrated with the data on the ground. Here, we tested accuracy of two methods to inverse reflectance, Ground-UAV-Linear Spectral Mixture Model (G-UAV-LSMM) and Minimum Noise ...

Author(s) : Yu RuiYang; Zhu Xicun; Bai XueYuan; Tian ZhongYu; Jiang YuanMao; Yang GuiJun

Publisher : Springer-Japan, Tokyo, Japan

Journal article; Conference paper : Journal of Plant Research 2021 Vol.134 No.4 pp.729-736 ref.31

14. "Looking beneath the surface": a visual-physical feature hybrid approach for unattended gauging of construction waste composition.

There are various scenarios challenging human experts to judge the interior of something based on limited surface information. Likewise, at waste disposal facilities around the world, human inspectors are often challenged to gauge the composition of waste bulks to determine admissibility and...

Author(s) : Chen JunJie; Lu WeiSheng; Xue Fan

Publisher : Elsevier, Amsterdam, Netherlands

Journal article : Journal of Environmental Management 2021 Vol.286

15. Authentication of Douro Do monovarietal red wines based on anthocyanin profile: comparison of partial least squares - discriminant analysis, decision trees and artificial neural networks.

In this study, the feasibility of discriminating monovarietal red wines from Touriga Nacional (TN), Touriga Franca (TF), and Tinta Roriz (TR) from Douro Demarcated Region (DDR) using the anthocyanin profile was investigated in combination with partial least squares - discrimination analysis...

Author(s) : Cosme, F.; Milheiro, J.; Pires, J.; Guerra-Gomes, F. I.; Filipe-Ribeiro, L.; Nunes, F. M.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Food Control 2021 Vol.125

16. Obstacle avoidance method for inter-forest mobile platform based on improved bug algorithm.

Objective: In this paper, an automatic navigation obstacle avoidance method based on improved bug algorithm was proposed to improve obstacle avoidance ability of forest mobile platform. Method: Six ultrasonic sensors were used to divide periphery of the forest mobile platform into nine detection...

Author(s) : Cai CunCheng; Yao LiJian; Chai ShanPeng

Publisher : Northwest A & F University (Natural Science Edition), Xianyang, China

Journal article : Journal of Northwest A & F University - Natural Science Edition 2021 Vol.49 No.7 pp.145-154

17. Chickpea seed vigor evaluated by computerized seedling analysis.

Computerized seedling analysis is a promising tool for assessing seed vigor, providing reliable and less subjective results. The aim of this study was to define a method for evaluating the vigor of chickpea seeds through computerized image analysis, using the Seedling Analysis System (Sistema de...

Author(s) : Araújo, J. de O.; Dias, D. C. F. dos S.; Medeiros, A. D. de; Silva, L. J. da; Nascimento, W. M.

Publisher : Universidade Estadual de Londrina, Londrina, Brazil

Journal article : Semina: Ciências Agrárias (Londrina) 2021 Vol.42 No.1 pp.71-85 ref.31

18. Estimation method of maize leaf area index at flowering and kernel stage based on high-resolution remote sensing images.

Taking corn at the flowering and grain stage as the research object, using the US PL high-resolution satellite remote sensing data, the correlation between the six commonly used vegetation indexes and the leaf area index (LAI) was compared, and the two vegetation indexes, EVI and SAVI, were finally ...

Author(s) : Ren FengDi; Chen ShengBo; Chen YanBing

Publisher : Jiangxi Academy of Agricultural Sciences, Nanchang, China

Journal article : Acta Agriculturae Jiangxi 2021 Vol.33 No.2 pp.116-120 ref.19

19. Discrimination of tomato maturity using hyperspectral imaging combined with graph-based semi-supervised method considering class probability information.

Accurate and nondestructive maturity discrimination of tomatoes is significant for harvest and preservation. Color differences between intermediate adjacent maturity stages are not significant, so it is time-consuming to obtain a large amount of precise maturity labels and difficult to discriminate ...

Author(s) : Jiang YiPing; Chen SiFan; Bian Bei; Li YuHua; Sun Ye; Wang XiaoChan

Publisher : Springer, New York, USA

Journal article : Food Analytical Methods 2021 Vol.14 No.5 pp.968-983 ref.many

20. Advances and prospects of wood identification technology coupled with computer vision.

Forests house over half of the world's wild plant and animal species, and produce valuable forest products for human. The over-exploitation of forest products poses huge threats to global biodiversity and ecosystem. China is one of the world's largest countries in the production, trade and...

Author(s) : He Tuo; Liu ShouJia; Lu Yang; Jiao LiChao; Yin YaFang

Publisher : Journal of Forestry Engineering, Nanjing, China

Journal article : Journal of Forestry Engineering 2021 Vol.6 No.3 pp.18-27 ref.10

21. Pig-posture recognition based on computer vision: dataset and exploration.

Posture changes in pigs during growth are often precursors of disease. Monitoring pigs' behavioral activities can allow us to detect pathological changes in pigs earlier and identify the factors threatening the health of pigs in advance. Pigs tend to be farmed on a large scale, and manual...

Author(s) : Shao HongMin; Pu JingYu; Mu Jiong

Publisher : MDPI AG, Basel, Switzerland

Journal article : Animals 2021 Vol.11 No.5 ref.33

22. Red light imaging for programmed cell death visualization and quantification in plant-pathogen interactions.

Studies on plant-pathogen interactions often involve monitoring disease symptoms or responses of the host plant to pathogen-derived immunogenic patterns, either visually or by staining the plant tissue. Both these methods have limitations with respect to resolution, reproducibility, and the ability ...

Author(s) : Villanueva, S. L.; Malvestiti, M. C.; Ieperen, W. van; Joosten, M. H. A. J.; Kan, J. A. L. van

Publisher : Wiley, Oxford, UK

Journal article : Molecular Plant Pathology 2021 Vol.22 No.3 pp.361-372 ref.many

23. Role of electrostatics in artificial pollination and future agriculture.

Pollination is the process of pollen detachment from the male part, i.e. anther of a flower, travel through a medium and deposition onto the female part, i.e. pistil of flower, thereby enabling fertilization and reproduction. Majority (87.5%) of flowering plants rely on animal pollination, on...

Author(s) : Khatawkar, D. S.; James, S. P.; Dhalin, D.

Publisher : Current Science Association, Bangalore, India

Journal article : Current Science 2021 Vol.120 No.3 pp.484-491 ref.52

24. CunICA, software for managing rearing processes in rabbit breeding farms. Technical note.

This study shows the characterization of CunICA software, created to manage rearing processes in rabbit breeding units and facilitate the control of productive and reproductive events in the enterprises, farms and units. It was performed in Netbeans 7.2, with Java programming language. Its...

Author(s) : Caba, A. M.; León, R. P. de; Hernández, Y. G.

Publisher : Instituto de Ciencia Animal, Havana, Cuba

Journal article : Cuban Journal of Agricultural Science 2021 Vol.55 No.1 pp.15-19 ref.10

25. A simple image analysis technique for measuring bed surface texture in flume experiments.

We present a simple image analysis technique for measuring the sediment composition of the bed surface during flow with bedload transport in flume experiments . The bed was composed by a bimodal mixture of natural sediments and the flow conditions were such that both fractions were mobile. A camera ...

Author(s) : Carbonari, C.; Recking, A.; Solari, L.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Journal of Hydrology (Amsterdam) 2021 Vol.598