• Title/Summary/Keyword: En Number

Search Result 243, Processing Time 0.024 seconds

Classification of Plants into Families based on Leaf Texture

  • TREY, Zacrada Francoise;GOORE, Bi Tra;BAGUI, K. Olivier;TIEBRE, Marie Solange
    • International Journal of Computer Science & Network Security
    • /
    • v.21 no.2
    • /
    • pp.205-211
    • /
    • 2021
  • Plants are important for humanity. They intervene in several areas of human life: medicine, nutrition, cosmetics, decoration, etc. The large number of varieties of these plants requires an efficient solution to identify them for proper use. The ease of recognition of these plants undoubtedly depends on the classification of these species into family; however, finding the relevant characteristics to achieve better automatic classification is still a huge challenge for researchers in the field. In this paper, we have developed a new automatic plant classification technique based on artificial neural networks. Our model uses leaf texture characteristics as parameters for plant family identification. The results of our model gave a perfect classification of three plant families of the Ivorian flora, with a determination coefficient (R2) of 0.99; an error rate (RMSE) of 1.348e-14, a sensitivity of 84.85%, a specificity of 100%, a precision of 100% and an accuracy (Accuracy) of 100%. The same technique was applied on Flavia: the international basis of plants and showed a perfect identification regression (R2) of 0.98, an error rate (RMSE) of 1.136e-14, a sensitivity of 84.85%, a specificity of 100%, a precision of 100% and a trueness (Accuracy) of 100%. These results show that our technique is efficient and can guide the botanist to establish a model for many plants to avoid identification problems.

prEN 1991-1-4:2021: the draft Second Generation Eurocode on wind actions on structures - A personal view

  • Francesco Ricciardelli
    • Wind and Structures
    • /
    • v.37 no.2
    • /
    • pp.79-94
    • /
    • 2023
  • This paper traces the drafting of the new EN 1991-1-4 Eurocode 1 - Actions on structures - Part 1-4: General actions - Wind actions within Mandate M/515 of the European Commission to CEN, for the evolution of structural Eurocodes towards their Second Generation. Work of the Project Team started in August 2017 and ended in April 2020, with delivery of a final draft for public enquiry. The revised document contains several modifications with respect to the existing 2005 version, and new sections were added, covering aspect not dealt with in the previous version. It has a renovated structure, with a main text limited in size and containing only fundamental material; all the remaining information, either normative or informative is arranged into thirteen annexes. Common to other Eurocode Parts, general requests from CEN were those of reducing the number of Nationally Determined Parameters and of enhancing the ease of use. More specific requests were those of (a) the drafting of a European design wind map, (b) improving wind models, (c) reviewing force and pressure coefficients, (d) reviewing the procedures for evaluation of the dynamic response, as well as (e) making editorial improvements aimed at a more user friendly document. The author had the privilege to serve as Project Team member for the drafting of the new document, and this paper brings his personal view concerning some general aspects of wind code writing, and some more specific aspects about the particular document.

Relative Humidity Transducer Proficiency Test for KOLAS Humidity Calibration Laboratories (KOLAS 교정기관 간 측정 동등성 확립을 위한 상대습도 변환기 숙련도 시험)

  • Sang-Wook Lee;Young-Suk Lee;Byung-Il Choi
    • Journal of Sensor Science and Technology
    • /
    • v.32 no.6
    • /
    • pp.447-454
    • /
    • 2023
  • The Korea Laboratory Accreditation Scheme (KOLAS) operates accreditation programs for ensuring measurement traceability with the International System (SI) of Units - the highest calibration standard that measurements can be tested against. As of September 2023, there are 70 KOLAS-accredited laboratories in the Republic of Korea that specialize in humidity calibration. Among them, 32 KOLAS laboratories, along with one laboratory not affiliated with KOLAS, participated in the proficiency test (PM 2023-11) for relative humidity transducers in 2023. This proficiency test was conducted within a relative humidity range of 20-90% at a temperature of approximately 20 ℃, taking into consideration the calibration and measurement capability (CMC) of the participating laboratories. The primary objective of the proficiency test was to establish the measurement equivalence between each participating laboratory and the reference laboratory, by calculating the number of equivalence (En). When |En| was less than 1, the measurements from the participating and reference laboratory were equivalent. Out of the 33 participating laboratories, 32 successfully met this criterion and passed the proficiency test.

Efficacy and Safety of Endoscopic Submucosal Dissection for Superficial Gastric Neoplasms: A Latin American Cohort Study

  • Fernando Palacios-Salas;Harold Benites-Goni;Luis Marin-Calderon;Paulo Bardalez-Cruz;Jorge Vasquez-Quiroga;Edgar Alva-Alva;Bryan Medina-Morales;Jairo Asencios-Cusihuallpa
    • Clinical Endoscopy
    • /
    • v.55 no.2
    • /
    • pp.248-255
    • /
    • 2022
  • Background/Aims: Endoscopic submucosal dissection (ESD) is the preferred technique for treating early gastric cancer (EGC). However, very few studies have been conducted in South America. This study aimed to assess the efficacy and safety of ESD for EGC. Methods: We analyzed data from a prospective cohort from 2013 to 2020. A total of 152 superficial gastric neoplasms that fulfilled the absolute or expanded criteria for ESD were included. Outcomes were en bloc, R0, and curative resection rates, incidence of adverse events, and length of procedure. Results: The age of the enrolled patients was 68.4±11.3 years. The number of included patients based on the absolute and expanded indications was 150 and 2, respectively. En bloc, R0, and curative resections were achieved in 98.0%, 96.1%, and 89.5% of the cases, respectively. Bleeding and perforation were reported in 5.9% and 6.6% of the cases, respectively. Histopathological examination revealed low-grade dysplasia, high-grade dysplasia, well-differentiated adenocarcinoma, and poorly differentiated adenocarcinoma in 13, 20, 117, and 2 cases, respectively. Conclusions: Our study shows that ESD performed by properly trained endoscopists in reference centers is safe and effective, with comparable therapeutic outcomes to those reported in the Eastern series.

Measurement of Urinary Nicotine and Cotinine Values in Smokers and Non-smokers (흡연자 및 비흡연자의 뇨중 니코틴 및 코티닌 함량)

  • 이문수;나도영;황건중
    • Journal of the Korean Society of Tobacco Science
    • /
    • v.19 no.1
    • /
    • pp.40-45
    • /
    • 1997
  • This study was conducted to evaluate the personal effects of tobacco smoke and environmental tobacco smoke(ETS) by measuring the concentration of nicotine and cotinine in the urine. While 129 urine samples were being collected, Personal characteristics such as sex, age, number of years since a Person has been a smoker, average consumption number of cigarettes per day, and number of smoker in family were also surveyed. Collected urine samples were used for analysis of nicotine and cotinine by GC/NPD after Passing the extrelut column. In the urine of the smoker, the average contents of nicotine and cotinine were 5.38$\mu\textrm{g}$/ml and 3.14 $\mu\textrm{g}$/ml, respectively. The average contents of nicotine and cotinine were 0.18$\mu\textrm{g}$/ml and 0.07$\mu\textrm{g}$/ml in the urine of male non-smoker, respectively. The contents of nicotine and cotinine in the non-smoker's urine were dependent on sex and age. On the other hand, the contents of nicotine and cotinine in smoker's urine were dependent on average consumption amount of cigarettes per day. Also, there was a direct relation between nicotine levels in the smoker's urine and the average consumption number of cigarettes Per day of smoker. The Possible sources of nicotine and cotinine in the non-smoker's urine seemed to be caused by food, beverage and En, Our results indicate that the number of smoker in family had no effect on increasing nicotine and cotinine contents in the urine of non-smoker.

  • PDF

The Research for Malfunction and Installation Status of Power Quality Counterplan Equipment of Elevator (엘리베이터의 전원품질용 기기 설치 현황 및 오동작에 관한 조사)

  • Kim, Gi-Hyun;Yi, Geon-Ho;Bae, Suk-Myong
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.20 no.10
    • /
    • pp.107-113
    • /
    • 2006
  • The number of confine-disease for elevator increases every year and then sudden stop, error of level indication stand; those can bring to uneasiness of elevator passenger and malfunction accidents related life accident are increasing. So we researched power quality counterplan equipment(SPD, Filter, Reactor) at site elevator controller room and malfunctions of elevator movement. We could confirm installation of power quality counterplan equipment recently and unchanging the number of malfunction. This data will be used the analysis for mutual relation between Power Quality(Sag, Interruption, ESD, ect.) and malfunction of elevator movement by testing the elevator equipment with EN12016(2004) and IEC standard level.

Phonological Constraints in English Morphology (영어 형태론에서의 음운 제약)

  • 김영석
    • Korean Journal of English Language and Linguistics
    • /
    • v.3 no.4
    • /
    • pp.547-570
    • /
    • 2003
  • There are a fair number of suffixes in English whose conditions on attachment refer to stress and/or segmental information contained within the words they attach to (see Siegel 1974, Jespersen 1942 and Marchand 1969). Through a wide study of relevant data, we will delve deeply into such phonological restrictions on the bases, which may as well be divided into four distinct types: haplological constraints; segmental constraints; prosodic constraints; and mixed types. We will further assume here that the category/ subcategorization requirements of affixes are subject to the Projection Principle (PP) as conceived in Kiparsky (1983). It will be shown how this PP interacts with phonological constraints placed upon the affix in question, especially in the treatment of-ful (inventful/mournful) or -en (longen/lengthen). Our account of problematic affixations in English is based on a number of violable constraints in OT.

  • PDF

Work limit Load Efficiency According to Splicing Method for Hand Spliced Wirerope Sling (스플라이스식 와이어로프 슬링의 편입법에 따른 사용하중한계효율)

  • Park, Jae-Suk;Han, Kyoung-Hun
    • Journal of the Korean Society of Safety
    • /
    • v.25 no.6
    • /
    • pp.70-74
    • /
    • 2010
  • For each strand of wirerope sling, the international standards, ISO-8794, EN-13414 specify that the splice shall have five series of load carrying tucks. At least three of the load carrying tucks shall be made with the whole strand. And, the breaking force of the splice shall not be less than 70% or 80% of that of rope. But, There are no prescriptions for splicing types against different efficiency of each splicing type being used many workplace. In this study, analysis the work limit load efficiency according to variation of number of tucks and splicing types by experimental method As a result, the number of tucks 3+2 had the highest breaking efficiency.

Seasonal Variation of Bacterial Community Composition in Sediments and Overlying Waters of the South East Sea (동해 남부 해역 퇴적물과 저층 해수 세균 군집 조성의 계절적 변화 연구)

  • Choi, Dong Han;Gim, Byeong-Mo;Choi, Tae Seob;Lee, Jung-Suk;Noh, Jae Hoon;Park, Young-Gyu;Kang, Seong-Gil
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
    • /
    • v.19 no.2
    • /
    • pp.147-154
    • /
    • 2014
  • Bacteria play an important role in biogeochemical cycles in marine environments and their functional attributes in ecosystems depend primarily on species composition. In this study, seasonal variation of bacterial diversity was investigated by pyrosequencing of 16S rDNA in surface sediment and overlying seawater collected in the south East Sea, planned for the site of $CO_2$ sequestration by the carbon capture and storage (CCS) project. Gammaproteobacteria was dominant in the sediment in most seasons, whereas Alphaproteobacteria was a most dominant group in the overlying water. Thus, the bacterial diversity greatly differ between sediment and seawater samples. On the genus level, bacterial diversity between two habitats was also different. However, the number of genera found over 5% were less than 10 in both habitats and the bacterial community was composed of a number of diverse minor or rare genera. Elevation of $CO_2$ concentration during a $CO_2$ storage process, could result in change of bacterial diversity. Thus, this study will be very useful to access the effect of $CO_2$ on bacterial diversity and to predict functional change of the ecosystem during the process of CCS project.

The study of Internal Meaning of Mise-en-Scène in Realism Movie -How Hong Sang-Su Handles His Realism with Ordinary Life- (리얼리즘 미학에 나타난 미장셴의 내적 의미 연구 -홍상수 영화의 일상과 리얼리즘 중심으로-)

  • Jin, Seung-Hyun
    • The Journal of the Korea Contents Association
    • /
    • v.15 no.2
    • /
    • pp.130-138
    • /
    • 2015
  • Korean movies with a great variety of styles have recently succeeded in drawing people's attention Rule number one is "the more entertainment, the more audiences". On the top of box offices are always the movies that have a number of spectacular scenes, pounding sounds and big budget characters. Hong Sang Su movies, however, receive attention from the public without above noted descriptions. One of his effective methods of expression is "realism" He has illustrated the trivial episodes with his own wits and ways. Not only has his style become famous and popular but he has many followers. He enjoys using ordinary emotion and sentiment that are likely to happen to everyone. This paper uses two tools. One is the traditional analysis of realism. The other is how he can approach the public meaningfully by listing common elements he frequently uses in his movies. Nevertheless, we can't fully understand his realism by explaining how he shows our everyday life and how much his movie looks like it. Though admitting there are so many preceding papers on his works but this paper will try to look deep into his realism through the analysis of Mise-en-Sc$\grave{e}$ne.