scholarly journals Open Plant Phenotype Database of Common Weeds in Denmark

2020 ◽  
Vol 12 (8) ◽  
pp. 1246 ◽  
Author(s):  
Simon Leminen Madsen ◽  
Solvejg Kopp Mathiassen ◽  
Mads Dyrmann ◽  
Morten Stigaard Laursen ◽  
Laura-Carlota Paz ◽  
...  
Keyword(s):  
Plant Species ◽  
Growth Conditions ◽  
Research Centre ◽  
Species Classification ◽  
Visual Appearance ◽  
Plant Phenotype ◽  
Rgb Images ◽  
The Individual ◽  
High Degree ◽  
Future Work

For decades, significant effort has been put into the development of plant detection and classification algorithms. However, it has been difficult to compare the performance of the different algorithms, due to the lack of a common testbed, such as a public available annotated reference dataset. In this paper, we present the Open Plant Phenotype Database (OPPD), a public dataset for plant detection and plant classification. The dataset contains 7590 RGB images of 47 plant species. Each species is cultivated under three different growth conditions, to provide a high degree of diversity in terms of visual appearance. The images are collected at the semifield area at Aarhus University, Research Centre Flakkebjerg, Denmark, using a customized data acquisition platform that provides well-illuminated images with a ground resolution of ∼6.6 px mm − 1 . All images are annotated with plant species using the EPPO encoding system, bounding box annotations for detection and extraction of individual plants, applied growth conditions and time passed since seeding. Additionally, the individual plants have been tracked temporally and given unique IDs. The dataset is accompanied by two experiments for: (1) plant instance detection and (2) plant species classification. The experiments introduce evaluation metrics and methods for the two tasks and provide baselines for future work on the data.

Semiology of the Pain Syndrome - Identifying the Ideal Methods of Locoregional Anesthesia Based on Their Rationale and Features

2017 ◽  
Vol 68 (10) ◽  
pp. 2373-2377
Author(s):  
Mihaela Monica Scutariu ◽  
Vlad Danila ◽  
Corina Ciupilan ◽  
Oana Elena Ciurcanu
Keyword(s):  
Maxillofacial Surgery ◽  
Essential Element ◽  
Pain Syndrome ◽  
Oral And Maxillofacial Surgery ◽  
Structuring Element ◽  
Technical Accuracy ◽  
Locoregional Anesthesia ◽  
Special Approach ◽  
The Individual ◽  
High Degree

Anesthesia and the degree of control over the perception of pain depends on the personality of the individual, the socio-economic conditions, potential previous painful experiences and, last but not least, on fatigue and fear of the dentist. The perception of pain in patients is closely connected to their mental state. Pain is defined as a sensation of discomfort, with wide variations, both in quality and intensity, for different people in seemingly identical conditions; an unpleasant sensitive and emotional phenomena connected to the threat of a wound or caused in the tissues or described in the terms of this disease. The essential element of any type of anesthesia is analgesia, an effect which in some cases cannot be achived, due to the patient�s particularities or the physician�s lack of experience in anesthesia. Locoregional anesthesia (LRA) represents the blocking of the nociceptive sensitive and sympathetic autonomic afferents as well as that of motor efferents at the level of peripheral nerves� axons, by means of local anesthetic. To achieve the set purpose, we carried out a study on a representative human sample comprised of 10.123 patients treated in the Oral and Maxillofacial Surgery Clinic (Ambulatory) from the County Clinic Emergency Hospital St. Spiridon Iasi, between 01.01.2015-31.12.2016. The reason for the exclusion of certain categories of patients in the reseach was: the patients with a special conditions background require individual pre-anesthesia schemes, personalised for the nature of the pre-existing general condition, which must be further approved by the attending specialist physician : cardiologist, internist, diabetologist; children under 18 years old, with a high degree of anxiety; a high precentage of elderly patients, over 60 years old, possess a combination of general issues, thus requiring a special approach. The thoroughness lying at the core of the anesthetic practice, most especially the safegurading of a technical accuracy in the performance of anesthesia [12,], instead of improvisations, the lack of anatomical and stomatological training in general and the resulting inefficiency as such, is the underlying in-depth structuring element of this paper.

scholarly journals Territories of state-led aquaculture risk management: Thailand’s Plang Yai program

2020 ◽  
pp. 239965442096524
Author(s):  
Mariska JM Bottema ◽  
Simon R Bush ◽  
Peter Oosterveer
Keyword(s):  
Risk Management ◽  
Policy Instruments ◽  
Spatially Explicit ◽  
Financial Risks ◽  
Shared Resources ◽  
Globalizing World ◽  
Farmer Behavior ◽  
Key Policy ◽  
The Individual ◽  
High Degree

The Thai aquaculture sector faces a range of production, market and financial risks that extend beyond the private space of farms to include public spaces and shared resources. The Thai state has attempted to manage these shared risks through its Plang Yai (or ‘Big Area’) agricultural extension program. Using the lens of territorialization, this paper investigates how, through the Plang Yai program, risk management is institutionalized through spatially explicit forms of collaboration amongst farmers and between farmers and (non-)state actors. We focus on how four key policy instruments brought together under Plang Yai delimited multiple territories of risk management over shrimp and tilapia production in Chantaburi and Chonburi provinces. Our findings demonstrate how these policy instruments address risks through dissimilar but overlapping territories that are selectively biased toward facilitating the individual management of production risks, whilst enabling both the individual and collective management of market and financial risks. This raises questions about the suitability of addressing aquaculture risks by controlling farmer behavior through state-led designation of singular, spatially explicit areas. The findings also indicate the multiple roles of the state in territorializing risk management, providing a high degree of flexibility, which is especially valuable in landscapes shared by many users, connected to (global) value chains and facing diverse risks. In doing so we demonstrate that understanding the territorialization of production landscapes in a globalizing world requires a dynamic approach recognizing the multiplicity of territories that emerge in risk management processes.

A comparison of the compressibilities of some gases with that of nitrogen at pressures below one atmosphere

1950 ◽  
Vol 200 (1061) ◽  
pp. 201-218 ◽  
Keyword(s):  
Carbon Dioxide ◽  
Differential Method ◽  
Linear Extrapolation ◽  
Volume Changes ◽  
Pure Nitrogen ◽  
Molecular Weights ◽  
Nitrous Oxide Oxygen ◽  
The Individual ◽  
Straight Lines ◽  
High Degree

A differential method for comparing the compressibilities of gases at pressures below 1 atm. has been developed in which many of the errors inherent in methods employed previously have been to a large extent eliminated, especially those due to meniscus volume changes and capillary depression. Using pure nitrogen as a standard the low-pressure isothermals of carbon monoxide, carbon dioxide, nitrous oxide, oxygen, ethylene and propane have been determined at a temperature of 22-05° C. The deviations of the individual points from straight lines do not in most cases exceed 2 parts in 100,000. In no case, even with propane, was any curvature in the isotherms detectable. The contention of Moles and other recent workers that the molecular weights of liquefiable gases can be determined to a high degree of accuracy by linear extrapolation is rendered highly probable by this fresh evidence.

Dynamic Characteristics of a Piezoelectric Transducer with Structural Damping

2013 ◽  
Vol 198 ◽  
pp. 633-638 ◽  
Author(s):  
Marek Płaczek
Keyword(s):  
Piezoelectric Transducer ◽  
Piezoelectric Materials ◽  
Research Centre ◽  
Structural Damping ◽  
Mechatronic Systems ◽  
Mathematical Algorithm ◽  
Analysis And Synthesis ◽  
The Matrix ◽  
Piezoelectric Stacks ◽  
Future Work

Work presents a proposal of an analysis method of the piezoelectric transducer. The considered system is a longitudinally vibrating single PZT plate. The main aim of this work is to designate characteristics of the considered PZT plate. Using constitutive equations of piezoelectric materials and an equation of the plates motion a matrix of characteristics of the system was obtained. Relations between mechanical and electrical parameters (forces, displacements, electric current and voltage) that describe behaviour of the system are included in the matrix of characteristics. A dynamic flexibility relation between the plates deformation and a force applied to the system is considered. A structural damping of the plates material was being taken into consideration and its influence on the plates dynamic flexibility is analysed. This work is an introduction to a task of analysis of complex systems. In future work the developed model and proposed mathematical algorithm will be used to analyse piezoelectric stacks. Non-classical methods will be used. It is a part of research works of Gliwice research centre related with an analysis and synthesis of mechanical and mechatronic systems [4-7,9,10,16-18]. Passive and active mechanical and mechatronic systems with piezoelectric transducers were analysed [1-3]. Works were also supported by computer-aided methods [8]. Both classical and non-classical methods were being considered. The discussed subject is important due to increasing number of applications of both simple and reverse piezoelectric phenomena in various modern technical devices.

Flexibility Effects in a Single Link Robotic Manipulator

1993 ◽  
Author(s):  
C. Nataraj
Keyword(s):  
Large Scale ◽  
Robotic Manipulator ◽  
Flexible Beam ◽  
Rotating Speed ◽  
Weighted Residuals ◽  
Individual Interaction ◽  
Single Link ◽  
Rigid Mass ◽  
The Individual ◽  
Future Work

Abstract A single link robotic manipulator is modeled as a rotating flexible beam with a rigid mass at the tip and accurate energy expressions are derived. The resulting partial differential equations are solved using an approximate method of weighted residuals. From the solutions, coupling between axial and flexural deformations and the interactions with rigid body motions are rigorously analyzed. The emphasis in the current paper is not on an exhaustive analysis of existing systems but it is rather intended to compare and highlight the various flexibility effects in a relatively simple system. Hence, a nondimensional parametric analysis is performed to determine the effect of several parameters (including the rotating speed) on the errors and the individual interaction effects are discussed. Comparison with previous work in the field shows important phenomena often ignored or buried in large scale numerical analyses. Future work including application to multi-link robots is outlined.

scholarly journals Contextual Determinants of Employee Entrepreneurial Behavior in Support of Corporate Entrepreneurship: A Systematic Review and Research Agenda

2018 ◽  
Vol 26 (03) ◽  
pp. 285-326 ◽  
Author(s):  
Michael Mustafa ◽  
Fiona Gavin ◽  
Mathew Hughes
Keyword(s):  
Corporate Entrepreneurship ◽  
Research Field ◽  
Complex Nature ◽  
Contextual Influences ◽  
Entrepreneurial Behavior ◽  
Firm Level ◽  
Contextual Determinants ◽  
The Individual ◽  
Job Role ◽  
Future Work

The individual entrepreneurial behavior of employees represents one of the primary antecedents of Corporate Entrepreneurship. The complex nature of ‘employee entrepreneurial behavior’ suggests that a myriad of contextual influences act on the emergence of such behavior. It is imperative that theorists and practitioners alike understand both the subtle and sophisticated ways in which context influences employee entrepreneurial behavior. To address these issues and encourage future work, this study performs a systematic literature review to provide an overview of the field and examines the influence of the job/role, organizational/work and external contexts on employee entrepreneurial behavior. Findings suggest that employee entrepreneurial behavior is an emergent research field and that its behaviors can manifest themselves in different ways compared to firm-level entrepreneurial behaviors. We also show the sophisticated manner in which different types of context influence employee entrepreneurial behavior.

scholarly journals “READY FOR LABOUR AND DEFENSE” STANDARDS AS A SYSTEM FOR ASSESSING STUDENTS‘ PHYSICAL FITNESS

2021 ◽  
pp. 114-124
Author(s):  
Татьяна Вячеславовна Кошкина
Keyword(s):  
Physical Education ◽  
Physical Fitness ◽  
Physical Training ◽  
Human Life ◽  
State University ◽  
Experiment Control ◽  
Evaluation Mechanism ◽  
The Individual ◽  
High Level ◽  
Future Work

Показано, что высокий уровень физической подготовленности студентов обеспечит их способность к качественному выполнению будущей трудовой деятельности. Для оценки уровня физической подготовленности студентов в рамках их физического воспитания в вузе возможно использовать нормативы комплекса «Готов к труду и обороне» (ГТО) как универсального оценочного механизма, позволяющего выделять наиболее физически развитых представителей данного поколения. С этой целью определено соответствие уровня физической подготовленности современных студентов не физкультурных специальностей с нормами комплекса ГТО. Выявлены пути совершенствования физической подготовки студентов в условиях современного вуза. Материалом для исследования послужили теоретические и эмпирические данные, полученные на основе использования методов теоретического анализа специальной литературы и передового педагогического опыта, педагогического эксперимента, контрольных испытаний, математико-статистических методов обработки и анализа данных. Результаты исследования подтверждают, что в настоящее время уровень физической подготовленности студентов не всегда соответствует требованиям норм ГТО. Данный факт был доказан экспериментально на базе Марийского государственного университета. Требуется дополнительная работа по физической подготовке студентов. С этой целью сформулированы методические рекомендации по совершенствованию физической подготовки студентов в соответствии с нормами ГТО. Теоретически обоснована и эмпирически доказана целесообразность использования нормативов ГТО в качестве системы оценивания физической подготовленности студентов. Сформулированы методические рекомендации по повышению уровня физической подготовленности студентов в соответствии с нормативами комплекса ГТО. The importance of physical culture and sports in human life, associated with maintaining the health of the nation as a whole and ensuring individual health and working capacity of the individual in particular, is realized in the form of physical education carried out in educational institutions, including universities. A high level of physical fitness of students will ensure their ability to perform high-quality future work activities. In order to assess the level of physical fitness of students within the framework of their physical education at the university, it is possible to use the standards of the GTO complex as a universal evaluation mechanism that allows identifying the most physically developed representatives of this generation. The purpose is to determine the compliance of the level of physical fitness of modern students of non-physical education specialties with the norms of the GTO complex and to identify on this basis ways to improve the physical training of students in the conditions of a modern university. The materials for the study were theoretical and empirical data obtained on the basis of the use of methods of theoretical analysis of special literature and advanced pedagogical experience, pedagogical experiment, control tests, mathematical and statistical methods of data processing and analysis. When studying the advanced pedagogical experience accumulated in our country since the introduction of the revived GTO standards in 2014, reflected in relevant publications, as well as scientific and methodological literature in the field of physical education, it was shown that at present the level of physical fitness of students does not always meet the requirements of GTO standards. This fact was proved experimentally, by conducting control tests on the basis of the Mari State University. This indicated that additional work is required on the physical training of students, and those indicators of physical fitness of students that require the greatest development were also identified. Methodological recommendations were formulated to improve the physical training of students in accordance with the standards of the GTO. The expediency of using the GTO standards as a system for assessing students’ physical fitness was theoretically justified and empirically proved.

scholarly journals Success-Driving Business Model Characteristics of IaaS Providers – Towards a Quantitative Evaluation

2020 ◽  
Vol 10 (5) ◽  
pp. 1-10
Author(s):  
Sebastian Floerecke ◽  
Florian Felix Röck ◽  
Franz Lehner
Keyword(s):  
Qualitative Research ◽  
Business Model ◽  
Quantitative Evaluation ◽  
Limited Resources ◽  
Business Success ◽  
Minor Importance ◽  
Competitive Situation ◽  
Web Based ◽  
The Individual ◽  
High Degree

Despite the highly competitive situation within the Infrastructure as a Service (IaaS) market and the resulting pressure and uncertainty for the involved providers, only little knowledge is available about business model characteristics (BMCs) related to success. Merely few qualitative studies are existing that propose hypotheses on success-driving business model characteristics (SDBMCs), however, a general and comparative quantitative evaluation and thus an evidence for their impact on business success is still missing. But this knowledge is essential for IaaS providers as it would allow them to focus their limited resources and efforts on the truly decisive BMCs and, at the same time, save costs by avoiding activities and investments of minor importance. Aiming to reduce this gap, a web-based survey was carried out, in which representatives of IaaS providers of different size rated the level of relevance of the proposed SDBMCs. As this study is still going on, this paper focuses on presenting the study design and an analysis of the data collected so far. As a preliminary result, nearly 80 % of the SDBMCs were rated as extremely important or important, meaning that the existing qualitative research results were confirmed to a high degree. The relevance of the individual SDBMCs varies greatly depending on the IaaS provider’s size

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