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Articoli di riviste sul tema "62C05"

Autore: Grafiati

Pubblicato: 5 ottobre 2024

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1

Pratesi, M., S. Marchetti, C. Giusti e N. Salvati. "The Use of Spatial Information in Area-level Models: An Evaluation Based on Auxiliary Data Availability". Calcutta Statistical Association Bulletin 75, n. 2 (novembre 2023): 155–72. http://dx.doi.org/10.1177/00080683231198589.

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The small area estimation (SAE) theory is widely used when local or domain-specific reliable estimates based on survey data are needed. Small area model-based estimates use a model that links the response variable to some auxiliary information borrowing strength from the related areas. When geographical information on the areas of interest is available, the specification of a spatial area level model can increase the estimates’ efficiency, depending on available auxiliary data. In this article, we first review the most popular area level spatial models, and we then compare their performance under two alternative scenarios of auxiliary information availability to estimate the average equivalized household income in Italian Local Labour Market Areas (LLMAs) using the EU-SILC (European Union Statistics on Income and Living Conditions) survey data. Our findings suggest that the spatial information can “fill the gap” when the covariates do not have a high predictive power, a crucial result when there is lack of auxiliary data. AMS Subject Classification: 62D05, 62G05, 62H11

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2

Li, Fanjie, Xiaopeng Li e Dongyang Shang. "Dynamic Modeling and Vibration Characteristics Analysis of Deep-Groove Ball Bearing, Considering Sliding Effect". Mathematics 9, n. 19 (28 settembre 2021): 2408. http://dx.doi.org/10.3390/math9192408.

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To study the vibration characteristics of deep-groove ball bearing, considering the influence of sliding, the dynamic model of the DGB 6205 system is established in this paper. The DGB 6205 system model includes the movement of the bearing inner ring in the X and Y directions, the rotation of the cage, the rotation movement of each ball, the revolution movement of each ball and the movement along the radial direction of each ball. Based on the system model, the differential equations of motion of the system are established, and the correctness of the model is verified by experiment. The slip characteristics of the DGB 6205 system are studied by numerical simulation. At the same time, the influence of time-varying load on the vibration characteristics of the system is studied. Then, the sensitivity of system parameters is analyzed. The results show that the sliding speed between the ball and the inner raceway is greater than that between the ball and the outer raceway. The radial vibration response of DGB 6205 system under time-varying load is less than that under constant load. The increase of radial clearance will increase the vibration response of DGB 6205 system.

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MARUȘCA, Teodor, Florin PĂCURAR, Daniyar MEMEDEMIN, Adrian OPREA, Ioana VAIDA, Elena TAULESCU e Nicoleta NICOLA. "Ecological, Agronomic and Anthropogenic Characterization of the Habitat 62C0* Ponto-Sarmatian Steppes in the North of Dobrogea (Romania)". Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture 79, n. 2 (20 novembre 2022): 42–53. http://dx.doi.org/10.15835/buasvmcn-agr:2022.0027.

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Natural habitat of Community interest 62C0* Ponto-Sarmatian steppes is very important at European level due to its high biodiversity. The aim of the paper is to study the grassland systems within the habitat 62C0* Sarmatic pontoon steps and to characterize them from an ecological and agronomic point of view. The floristic studies were carried out on the permanent grasslands of the biogeographical region ROSCI 0201 North Dobrogean Plateau, which for the most part belong to the Natural Habitat of Community Interest 62C0 * Sarmatian pontoon steps. Following the classifications (cluster) resulted 4 groups such as: type Cynodon dactylon, type Bothriochloa ischaemum - Festuca valesiaca, type Festuca valesiaca and type Festuca valesiaca - Stipa capillata.

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4

Lee, Kang-Hee, Sang-Hyup Lee e Kyung-Wan Koo. "A Study on a Regulation Draft of Inspection and Maintenance for Lightning Protection Facilities based on IEC 62305". Transactions of The Korean Institute of Electrical Engineers 64, n. 5 (1 maggio 2015): 838–44. http://dx.doi.org/10.5370/kiee.2015.64.5.838.

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5

Gopan, Nandu, e Anandu Gopan. "Practice of Electrical Insulation of Lightning Protection Systems in India – Before and After the Publication of the National Building Code of India 2016". Amrit Research Journal 4, n. 2 (15 maggio 2024): 25–32. http://dx.doi.org/10.3126/arj.v4i2.65541.

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Lightning protection system (LPS) as per IS/IEC 62305 is mandatory in India for buildings above 15 meters and for special buildings like educational institutions, and hospitals regardless of their height. External LPS (ELPS) can be of isolated or non-isolated type depending upon the nature of the structure. This paper reviews the installation of ELPS before and after the publication of the National Building Code of India 2016 (NBC). This is limited only to ELPS and Internal Lightning protection system (ILPS) is not considered. The installation has been studied as per IS/IEC 62305 on electrical isolation. The conclusion has been drawn based on the installation and the influence of NBC 2016.

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6

Markowska, Renata, e Zofia Wróbel. "Selected Issues of Safe Operation of the Railway Traffic Control System in the Event of Exposition to Damage Caused by Lightning Discharges". Energies 14, n. 18 (14 settembre 2021): 5808. http://dx.doi.org/10.3390/en14185808.

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Lightning discharge becomes a serious source of interference and damage for electronic and electrical power systems. Safe and reliable operation of railway traffic control systems requires proper protection against the effects of lightning. However, the current standards on lightning protection, PN-EN/EN/IEC 62305, do not cover railway objects. Moreover, there are no other standards or recommendations dedicated to the railway. The paper is an attempt to apply the procedure of lightning risk management according to PN-EN 62305-2 to select the proper protection measures in railway objects. A case study for the signal box with installed relaying and digital stations of the railway traffic control system is analyzed. The analysis comprises calculations based on the current standard PN-EN 62305-2:2012 but including the issues specific to railway traffic control. The risks of lightning losses have been calculated for two cases: without lightning protection measures and with protection measures proposed to decrease the risks below the tolerable values. The results show that a practically effective solution to reduce the risks is applying surge protective devices with proper characteristics. Another way is replacing unshielded incoming lines with shielded ones of given shield bonding way, and supplementing it with surge protective devices when necessary.

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7

Torres Sanabria, Cesar Alberto, Oscar Ignacio Sánchez e Francisco Santamaría. "Comparación de las normas NTC 4552 de 2008 e IEC 62305 de 2010 para el análisis de riesgo". Revista Tecnura 18, n. 40 (4 maggio 2014): 103. http://dx.doi.org/10.14483/udistrital.jour.tecnura.2014.2.a08.

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Para realizar un diseño eficiente de un sistema de protección contra descargas atmosféricas sobre una estructura es necesario evaluar el riesgo que puede presentar en la estructura y cuáles podrían ser los daños y pérdidas consecuentes de ese evento. En este sentido, se deben tener en cuenta los aspectos descritos en la norma NTC 4552 o la IEC 62305 para poder realizar la evaluación del riesgo y, de esta manera, determinar si la estructura implicada necesita o no un sistema de protección contra descargas atmosféricas y, en caso de tener uno, si este necesita modificaciones. La norma colombiana NTC 4552 "Protección contra descargas eléctricas atmosféricas" se basa en los principios descritos en la norma IEC 62305 del 2006. Sin embargo, en la norma IEC 62305 de 2010 se realizaron modificaciones, las cuales varían de forma significativa la evaluación del riesgo y pueden generar un análisis erróneo para el caso colombiano, además, en la norma NTC 4552 se han incorporado resultados de investigaciones realizadas en Colombia y otros países de la región, lo cual ha llevado a que algunos de los parámetros empleados en el análisis y diseño de los sistemas de protección contra rayos sean diferentes a los usados en la normativa internacional.

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8

Chun Lim, Siow, Ong Chang Shen e Ngu Eng Eng. "An Integrated Lightning Risk Assessment of Outdoor Air-Insulated HV Substations". Energies 15, n. 20 (18 ottobre 2022): 7702. http://dx.doi.org/10.3390/en15207702.

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Although various lightning protection methods have been used in the industry, many outdoor high-voltage (HV) substations are still experiencing high failure rates due to lightning strikes. The applications of these rule-of-thumb-based methods generally lack coherence among the practitioners. IEC 62305-2 provides a systematic way for practitioners to assess the lightning risk for buildings or structures in a probabilistic way. However, this standard has not explicitly covered the application of HV substations. Moreover, IEC 62305-2 involves a tedious set of risk factors which may hinder many practitioners from applying the aforementioned standards while other preferred rule-of-thumb methods are available. As IEC 62305-2 does not specify the applicability to lightning risk assessment in HV substations, this paper proposes a novel approach to complement the standard-based risk assessment process. During this integrated risk assessment process, significant risks are identified, followed by ambiguous risks that will be adjusted in subsequent phases. The significant ambiguous risk factors such as fire load function (rf), environmental factor (CE), LPL class, and other governing factors have been analyzed and discussed. By adjusting these significant risk factors, the practitioners will understand the adjusted risk factors in relation to the practical implementation of lightning protection system (LPS). Therefore, integrating the substation characteristics, assumptions, and findings of ambiguous risk factors can result in a successful integrated lightning risk assessment process.

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9

Cassis-Martinez, R., I. Arosemena, G. Duran, E. Andrade, C. Vizueta e J. Franco. "OGP 6205 Axillary Cystic Hygroma: A case Report". Ultrasound in Medicine & Biology 23 (gennaio 1997): S119. http://dx.doi.org/10.1016/s0301-5629(97)80750-8.

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10

Wróbel, Zofia, e Adam St Jagiełło. "The Risk of Lightning Losses in a Structure Equipped with RTC Devices According to the Standard EN 62305-2.2008". Energies 14, n. 6 (18 marzo 2021): 1704. http://dx.doi.org/10.3390/en14061704.

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Incorrect adjustment of railway traffic control devices (rtc) to the specificity of the area in terms of lightning density may result in their damage by lightning-caused electromagnetic pulses. An associated risk assessment, as the standard in the analyses of the strength of rtc devices, should be made. However, manufacturers of rtc devices typically do not perform tests with respect to such high overvoltage conditions. Particularly in the case of the EN 62305-2 standard, the manufacturers of new rail traffic control devices usually do not carry out such analyses. In this paper, an analysis of the damage vulnerability of rtc devices caused by lightning discharges for a selected structure, including a signal box equipped with digital rtc devices is presented. The necessity of conducting a lightning damage vulnerability analysis for rtc devices is demonstrated. A part of the railway track where lightning discharges occur was analyzed. The results of the risk analysis obtained with the use of the DEHN Risk Tool software and based on the standard EN 62305-2 (2008, Lightning protection. Part 2. Risk management) are presented. Due to the fact that railway devices are not included in the current standard, three documents were adopted for the analysis: two editions of EN/IEC 62305-2 (from 2008 and 2012) and the recommendations of the ITU-International Telecommunication Union ITU-T K.39 (10/1996). The presented analysis is performed according to the 2008 standard version and to the chosen device.

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11

Bishwal, J. P. N., e Arup Bose. "Speed of Convergence of the Maximum Likelihood Estimator in the Ornstein-Uhlenbeck Process". Calcutta Statistical Association Bulletin 45, n. 3-4 (settembre 1995): 245–52. http://dx.doi.org/10.1177/0008068319950310.

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Berry-Bsseen bounds with random norming and Jario deviation probabilities arc derived for the maximum likelihood estimator of the drift parameter in tho Ornstoin-Uhlenbeck proccss. AMS (1991) Subject Classification: Primary 62F12, 62M05 Secondary 60FOS, 60F10

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12

Sarkar, Palash, e Bimal Roy. "Construction of Nearly Balanced Uniform Repeated Measurement Designs". Calcutta Statistical Association Bulletin 45, n. 3-4 (settembre 1995): 235–44. http://dx.doi.org/10.1177/0008068319950309.

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Nearly balanced uniform repeated measurement designs are defined and construction of such designs when the number of units is less than or equal to the number of treatments and the numbers of periods is less than the number of treatments, is given. AMS (1980) subject classification : 62K05.

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13

Gellén, T. B., N. Szedenik, I. Kiss e B. Németh. "On the problems regarding the risk calculation used in IEC 62305". Journal of Physics: Conference Series 301 (23 giugno 2011): 012065. http://dx.doi.org/10.1088/1742-6596/301/1/012065.

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14

Mou, Ting, Jie Liang, Ziyu Ma, Longcheng Zhang, Yiting Lin, Tingshuai Li, Qian Liu et al. "High-efficiency electrohydrogenation of nitric oxide to ammonia on a Ni₂P nanoarray under ambient conditions". Journal of Materials Chemistry A 9, n. 43 (2021): 24268–75. http://dx.doi.org/10.1039/d1ta07455e.

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A Ni2P nanoarray on carbon paper enables NH3 synthesis via NO reduction (NH3 yield: 33.47 μmol h−1 cm−2; faradaic efficiency: 76.9%). Ni2P-based Zn–NO battery shows a power density of 1.53 mW cm−2 with an NH3 yield of 62.05 μg h−1 mgcat.−1.

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15

Mandal, N. K., e K. R. Shah. "Designs Robust Against Aberrations". Calcutta Statistical Association Bulletin 43, n. 1-2 (marzo 1993): 95–108. http://dx.doi.org/10.1177/0008068319930109.

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In this paper, we obtain sufficient conditions for a design to be robust against aberrations in the sense of Box and Draper. Block designs, row-column designs and fractional designs are considered here. An alternative formulation of robustness is also presented. AMS Subject Classification: Primary 62K99; Secondary 62K05.

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16

Bhattacharya, Rahul, S. Maiti Sudhansu, Mouli Choudhury Mriganka e Dipangsu Mukherjee. "Minimum Variance Unbiased Estimation of Reliability Function for a Class of Generalizations of Lindley Distribution". Calcutta Statistical Association Bulletin 72, n. 1 (maggio 2020): 43–57. http://dx.doi.org/10.1177/0008068320923428.

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Uniformly minimum variance unbiased (UMVU) estimators of reliability function (both stress–strength and mission time) and the associated variance are derived for a class of generalization of Lindley distribution. The application of the results is further validated by a real data study. AMS 2020 subject classification: 62N05 62F10

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17

Wiater, Jaroslaw. "Surge Protection Designer's Dilemma". AUTOMATYKA, ELEKTRYKA, ZAKLOCENIA 12, n. 3(45)202121 (30 settembre 2021): 24–28. http://dx.doi.org/10.17274/aez.2021.45.02.

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The paper discusses the issue of programming the lifespan of electrical devices from the viewpoint of the electrical system designer. The contents of standards PN-EN 62305, PN-EN 61000-4-5 have been confronted with daily practice of the end user of electrical wiring. Currently, the described standard-based dilemma has not been resolved yet.

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18

Gontcharov, George A., Maxim Yu Khovritchev e Aleksandr V. Mosenkov. "Isochrone fitting of Galactic globular clusters – II. NGC 6205 (M13)". Monthly Notices of the Royal Astronomical Society 497, n. 3 (18 agosto 2020): 3674–93. http://dx.doi.org/10.1093/mnras/staa1694.

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ABSTRACT We present new isochrone fits to colour–magnitude diagrams of the Galactic globular cluster NGC 6205 (M13). We utilize 34 photometric bands from the ultraviolet to mid-infrared by use of data from the HST, Gaia DR2, SDSS, unWISE, Pan-STARRS DR1, and other photometric sources. In our isochrone fitting we use the PARSEC, MIST, DSEP, BaSTI, and IAC-BaSTI theoretical models and isochrones, both for the solar-scaled and He–α-enhanced abundances, with a metallicity of about [Fe/H] = −1.58 adopted from the literature. The colour–magnitude diagrams, obtained with pairs of filters from different datasets but of similar effective wavelengths, show some colour offsets up to 0.04 mag between the fiducial sequences and isochrones. We attribute these offsets to systematic differences of the datasets. Some intrinsic systematic differences of the models/isochrones remain in our results: the derived distances and ages are different for the ultraviolet, optical and infrared photometry used, while the derived ages are different for the different models/isochrones, e.g. in the optical range from 12.3 ± 0.7 Gyr for He–α-enhanced DSEP to 14.4 ± 0.7 Gyr for MIST. Despite the presence of multiple stellar populations, we obtain convergent estimates for the dominant population: best-fitting distance 7.4 ± 0.2 kpc, true distance modulus 14.35 ± 0.06 mag, parallax 0.135 ± 0.004 mas, extinction AV = 0.12 ± 0.02, and reddening E(B − V) = 0.04 ± 0.01. These estimates agree with other recent estimates; however, the extinction and reddening are twice as high as generally accepted. The derived empirical extinction law agrees with the Cardelli–Clayton–Mathis extinction law with the best-fitting $R_\mathrm{V}=3.1^{+1.6}_{-1.1}$.

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MANGKU, I. W. "ASYMPTOTIC NORMALITY OF A KERNEL-TYPE ESTIMATOR FOR THE INTENSITY OF A PERIODIC POISSON PROCESS". Journal of Mathematics and Its Applications 5, n. 2 (1 dicembre 2006): 13. http://dx.doi.org/10.29244/jmap.5.2.13-22.

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<p>In this paper we prove asymptotic normality of a kernel type estimator for the intensity of a periodic Poisson process. This paper is a continuation of [10]. As in [10], we consider the situation when the period is known in order to be able to present simple proofs of the results.<br />1991 Mathematics Subject Classiﬁcation: 60G55, 62G05, 62G20.</p>

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20

Duan, Zhong-Yu, Guo-Li Ma e Li-Ping Yang. "(E)-4-[(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)iminomethyl]-2-methoxyphenyl 4-bromobenzenesulfonate". Acta Crystallographica Section E Structure Reports Online 68, n. 4 (10 marzo 2012): o1039. http://dx.doi.org/10.1107/s1600536812010057.

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In the title compound, C25H22BrN3O5S, the central benzene ring makes dihedral angles of 4.41 (10), 67.09 (9) and 62.05 (10)°, respectively, with the pyrazolone, bromobenzene and terminal phenyl rings. The dihedral angle between the pyrazolone and phenyl rings is 57.75 (11)°. In the crystal, two pairs of C—H...O hydrogen bonds link the molecules into inversion dimers. A weak intramolecular C—H...O hydrogen bonds is also observed.

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21

Darji, Ankit, e Divyang Pandya. "Fault diagnosis of SKF-6205 bearing with modified empirical mode decomposition". International Journal of Engineering, Science and Technology 13, n. 4 (30 maggio 2022): 12–20. http://dx.doi.org/10.4314/ijest.v13i4.2.

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Rolling element bearings are broadly used in the rotating machines to support static and dynamic loads. In this research, the advance signal processing techniques are use for processing of bearing fault signals. Experimental validation with genuine vibration signals calculated from bearings with seeded defects on bearing elements. The model-based fault diagnosis method has attempted to diagnose incipient fault detection and classification of bearing with data driven approach. Feature extraction technique has been developed with hybrid signal processing technique based on the band pass filter nature of Empirical mode decomposition (EMD), the resonant frequency bands have owed in specific mono component signals called Intrinsic Mode Functions (IMFs). Synchronized resonant frequency band (SRFB) is obtained on based of orthogonal real wavelet using spectral kurtosis. Biorthogonal 5.5 wavelet, a real wavelet has been selected as a suitable wavelet for WPT based on “Maximum Relative Wavelet Energy” and “Maximum Energy-to-Shannon entropy ratio”. Three, Feature extraction techniques like continuous wavelet transform (CWT), wavelet packet transform (WPT) and modified Hilbert Huang Transforms (HHT) are compared on bases of their classification accuracy with different classification algorithm and filters. Various supervised classifiers have been compared through a common platform of Waikato Environment for Knowledge Analysis (WEKA) and concluded the k- nearest neighbour (KNN) as an effective available classifier for rolling element bearing. Further, asymmetric proximity function based KNN (APF-KNN) has out performs with modified feature selection criteria. Feature extraction through modified HHT and APFKNN has been future as a most effectual fault classification method. For testing any unknown data, simplified method has been demonstrated, which make the proposed data driven approach more realistic, faster and automated.

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Shetrone, Matthew D. "Radial velocities and line cores of halo giants: M13 (NGC 6205)". Publications of the Astronomical Society of the Pacific 106 (febbraio 1994): 161. http://dx.doi.org/10.1086/133363.

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Javor, Vesna. "New Functions for Representing IEC 62305 Standard and Other Typical Lightning Stroke Currents". Journal of Lightning Research 4, n. 1 (13 luglio 2012): 50–59. http://dx.doi.org/10.2174/1652803401204010050.

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Thomas, P. Yageen. "Estimation of the Parameters of the Uniform Distribution Over [kθ, (k+ 1)θ]". Calcutta Statistical Association Bulletin 46, n. 3-4 (settembre 1996): 263–68. http://dx.doi.org/10.1177/0008068319960310.

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From the available literature on estimation of the parameters of the uniform distribution over [ kθ, kθ + θ], we find the necessity to construct improved estimators of the parameter θ when k is known. In this paper a new estimator of θ is proposed when k is known and its performance is compared with best linear unbiased estimator of θ based on two extreme observations. A MS Subject Classification: Primary: 62H12; Secondary: 62G30, 62B05.

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Pal, Nabendu, e Ching-Hui Chano. "Risk Analysis and Robustness of four Shrinkage Estimators". Calcutta Statistical Association Bulletin 46, n. 1-2 (marzo 1996): 35–62. http://dx.doi.org/10.1177/0008068319960105.

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In this paper we first investigate the risk properties of four shrinkage estimators of a location vector assuming that the random vector follows a multivariate normal distribution. Next we study the risk performance of these four estimators under a multivariate 1 distribution with n(⩾ 3) degrees of freedom. It bas been found that under both the models the four shrinkage estimators preserve almost the same relative merits and demerits. AMS 1991 Subject Classifications : Primary 62C15, Secondary 62H12.

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MANGKU, I. W. "WEAK AND STRONG CONVERGENCE OF A KERNEL-TYPE ESTIMATOR FOR THE INTENSITY OF A PERIODIC POISSON PROCESSS". Journal of Mathematics and Its Applications 5, n. 1 (1 luglio 2006): 1. http://dx.doi.org/10.29244/jmap.5.1.1-12.

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<p>In this paper we survey some results on weak and strong convergence of kernel type estimators for the intensity of a periodic Poisson process. We consider the situation when the period is known in order to be able to present simple proofs of the results. For the more general results, which includes the case when the period is unknown, we refer to [15], [16].</p><p>1991 Mathematics Subject Classiﬁcation: 60G55, 62G05, 62G20.</p>

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Bao, Bing Sheng, e Wan Qiang Zhong. "The Discuss on Step-Voltage and Risk of Down-Conductor When Lightning Strikes a Building". Advanced Materials Research 671-674 (marzo 2013): 3261–64. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.3261.

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Step voltage of lightning can make serious human casualties. According to some doubt about the step voltage protective measures in IEC 62305-3 (2010), we get the calculation formula of step voltage through derivation, and verify the high soil resistivity around building foundation surface is likely to endanger human life. With the research of Lightning Real-time online Monitoring Project, calculate and examine the range of dangerous step voltage, which is helpful to the work of risk assessment and disaster survey.

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Klein, Martin D., John Zylstra e Bimal K. Sinha. "Finite Sample Inference for Multiply Imputed Synthetic Data under a Multiple Linear Regression Model". Calcutta Statistical Association Bulletin 71, n. 2 (novembre 2019): 63–82. http://dx.doi.org/10.1177/0008068318803814.

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In this article, we develop finite sample inference based on multiply imputed synthetic data generated under the multiple linear regression model. We consider two methods of generating the synthetic data, namely posterior predictive sampling and plug-in sampling. Simulation results are presented to confirm that the proposed methodology performs as the theory predicts and to numerically compare the proposed methodology with the current state-of-the-art procedures for analysing multiply imputed partially synthetic data. AMS 2000 subject classification: 62F10, 62F25, 62J05

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Parhamfar, Mohammad. "Lightning Risk Assessment Software Design for Photovoltaic Plants in Accordance with IEC 62305-2". Energy Systems Research 5, n. 2 (2022): 34–54. http://dx.doi.org/10.38028/esr.2022.02.0004.

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Darminto, Darminto, Dikdik S. Mulyadi, Agung Prasetyo e Johar Setiyadi. "Pengolahan Data Bathymetry dan Side Scan Sonar System Edgetech 6205 Untuk Pemetaan Kondisi Permukaan Dasar Laut (Studi Kasus Perairan Tanjungkubu, Kepulauan Riau)". Jurnal HIDROPILAR 3, n. 1 (31 luglio 2017): 1–10. http://dx.doi.org/10.37875/hidropilar.v3i1.52.

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Pemetaan kondisi permukaan dasar laut di daerah-daerah kritis seperti alur masuk pelabuhan, tempat berlabuh kapal-kapal, jalur pipa serta kabel bawah laut sering digunakan perpaduan beberapa alat survei yang berbeda seperti kombinasi penggunaan alat survei batimetri dan Side Scan Sonar (SSS) secara terpisah maupun dalam satu sounding boat. Dengan kemajuan teknologi peralatan survei batimetri, kini telah hadir peralatan survei Edgetech 6205 yang dapat menghasilkan output dua data dalam proses akuisisinya yaitu data Multibeam Echosounder (MBES) dan SSS. Proses akuisisinya telah dilaksanakan oleh tim survei PT. Pageo Utama di Perairan Tanjungkubu, Kepulauan Riau. Tulisan ini membahas pengolahan data MBES dan SSS Edgetech 6205. Hasil pengolahan data MBES diperoleh data angka kedalaman, image seabed surface (*.tiff) dan objek dasar laut yang belum diketahui secara pasti. Sedangkan hasil pengolahan data SSS diperoleh citra (foto) fitur dasar laut (*.tiff) . Sapuan data MBES dan sapuan data SSS sangat representatif sehingga objek temuan hasil pengolahan data MBES dapat diverifikasi dan didigitasi untuk mendapatkan data posisi dari fitur dasar laut yang dianggap benar. Dari dua data tersebut diperoleh informasi yang cukup akurat tentang kondisi permukaan dasar laut yang berupa fitur dasar laut, angka kedalaman dan kontur.

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MANGKU, I. W. "STRONG CONVERGENCE OF A UNIFORM KERNEL ESTIMATOR FOR INTENSITY OF A PERIODIC POISSON PROCESS WITH UNKNOWN PERIOD". Journal of Mathematics and Its Applications 8, n. 1 (1 luglio 2009): 1. http://dx.doi.org/10.29244/jmap.8.1.1-10.

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<p>Strong convergence of a uniform kernel estimator for intensity of a periodic Poisson process with unknowm period is presented and proved. The result presented here is a special case of the one in [3]. The aim of this paper is to present an alternative and a relatively simpler proof of strong convergence compared to the one in [3]. This is a joint work with R. Helmers and R. Zitikis.<br />1991 Mathematics Subject Classication: 60G55, 62G05, 62G20.</p>

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32

Zhang, Rui, Zhao Hui Zhang e Ni Li. "Study on Comprehensive Recycling of an Ilmenite Ore Beneficiation Test". Advanced Materials Research 785-786 (settembre 2013): 1060–65. http://dx.doi.org/10.4028/www.scientific.net/amr.785-786.1060.

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Ilmenite phase is complex in Shaanxi.There are mainly magnetite, limonite and ilmenite, and associated with extremely small amount of rutile. According to the occurrence iron and titanium in the ilmenite ore。Paper discussed comprehensive recycling of the ilmenite using wet low-intensity magnetic separation by stage grinding process . The results show that it obtains better mineral processing indexes。The productivity of ilmenite concentrate was 28.83%, the grade of iron in concentrate was 62.05%, the content of titanium was 13.11%, iron recovery was 61.73%, titanium recovery was 43.40%.

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33

Singh, Sarjinder. "Estimation of Variance of Regression Estimator in two Phase Sampling". Calcutta Statistical Association Bulletin 50, n. 1-2 (marzo 2000): 49–64. http://dx.doi.org/10.1177/0008068320000105.

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In the present investigation, an improved strategy in two phase sampling for estimating the variance of the regression estimator has been developed. The proposed technique has been found to be more efficient than the strategy adopted by Hidiroglou and Sarndal (1995, 1998). The proposed strategy here is analogous to the higher order calibration approach proposed by Singh, Horn and Yu (1998). Many new estimators for estimating the variance of regression estimator have been studied theoretically as well as empirically. AMS (2000) Subject Classification: Primary 62D05; Secondary 62F10.

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34

MANGKU, I. W. "CONSISTENCY OF A UNIFORM KERNEL ESTIMATOR FOR INTENSITY OF A PERIODIC POISSON PROCESS WITH UNKNOWN PERIOD". Journal of Mathematics and Its Applications 7, n. 2 (1 dicembre 2008): 31. http://dx.doi.org/10.29244/jmap.7.2.31-38.

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Abstract (sommario):

<p>A uniform kernel estimator for intensity of a periodic Poisson process with unknowm period is presented and a proof of its consistency is discussed. The result presented in this paper is a special case of that in [3]. The aim of discussing a uniform kernel estimator is in order to be able to present a relatively simpler proof of consistency compared to that in [3]. This is a joint work with R. Helmers and R. Zitikis.<br />1991 Mathematics Subject Classi¯cation: 60G55, 62G05, 62G20.</p>

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35

Pal, Sanghamitra. "Extending Takahasi‐Sakasegawa’s Indirect Response Technique to Cover Sensitive Surveys in Unequal Probability Sampling". Calcutta Statistical Association Bulletin 59, n. 3-4 (settembre 2007): 265–76. http://dx.doi.org/10.1177/0008068320070310.

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Abstract: Randomized Response (RR) Technique (RRT), introduced by Warner (1965), is a well‐known way to unbiasedly estimate proportions of people bearing sensitive characteristics. Takahasi and Sakasegawa (1977) narrated a novel procedure avoiding any particular RR device unlike most researchers in this field. Most RRT’s in the literature give estimators for population totals and variance estimators thereof, allowing exclusively simple random sampling with replacement (SRSWR) schemes, including as well the above too. We present formulae applicable to general varying probability sampling, even without replacement applying Takahasi‐ Sakasegawa device. AMS (2000) Subject Classification: 62D05.

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36

Banjanin, Mladen, e Svetozar Banjanin. "Early Streamer Emission Vs Conventional Lightning Protection Systems". B&H Electrical Engineering 13, n. 1 (1 dicembre 2019): 24–34. http://dx.doi.org/10.2478/bhee-2019-0003.

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Abstract This paper analyses and compares the conventional lightning protection systems proposed in IEC 62305 to the lightning protection systems based on the application of early streamer emission lightning rods proposed in NF C 17-102. Comparison between the two approaches to the lightning protection of structures was presented, both from a technical and economic point of view. Some inconsistencies in the conventional air termination system design methods are pointed out. The critical attitude of the scientific community regarding the declared protection characteristics of the early streamer emission lightning rods is discussed.

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37

Mukherjee, S. P. "Stratified Sampling: Some Associated Problems". Calcutta Statistical Association Bulletin 75, n. 1 (maggio 2023): 48–59. http://dx.doi.org/10.1177/00080683231178454.

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Abstract (sommario):

Stratified sampling has been commonly used in many large-scale surveys. The two inter-related problems of determining strata boundaries where strata have to be developed using some variable(s) whose values can be accessed while designing the survey and of allocating the total sample size among the strata have been studied during a long period, initially without involving mathematical programming and subsequently using concurrent developments in constrained optimization methods and algorithms. The present article provides a critique of some of these studies, especially those dealing with multiple stratification variables and multiple parameters to be estimated. AMS Subject Classification: 62D05

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38

Panda, Mahesh Kumar. "R-Optimal Designs for Canonical Polynomial Models with Mixture Experiments". Calcutta Statistical Association Bulletin 73, n. 2 (25 ottobre 2021): 146–61. http://dx.doi.org/10.1177/00080683211038278.

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The concept of R-optimality was introduced in the literature as an alternative to the commonly used D-optimality criteria when the objective is to construct rectangular confidence regions. This present article aspires to extend the notion of R-optimality in mixture experiments. In this study, we obtain saturated R-optimal designs for quadratic canonical polynomial for[Formula: see text]mixture components as well as for different forms of cubic polynomial mixture models, that is, full cubic, cubic without 3-way effect, and special cubic mixture models in three mixture components. The optimality of the proposed designs is confirmed by the equivalence theorem. AMS subject classification: 62K05

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39

MANGKU, I. W. "L2-CONVERGENCE OF A NEAREST NEIGHBOR ESTIMATOR OF THE INTENSITY FUNCTION OF A CYCLIC POISSON PROCES". Journal of Mathematics and Its Applications 13, n. 2 (1 dicembre 2014): 49. http://dx.doi.org/10.29244/jmap.13.2.49-62.

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<p>Abstract. We consider the problem of estimating the intensity func- tion of a cyclic Poisson process. We suppose that only a single realization of the cyclic Poisson process is observed within a bounded 'window', and our aim is to estimate consistently the intensity function at a given point. A nearest neighbor estimator of the intensity function is proposed, and we show that our estimator is L2-consistent, as the window expands.<br />AMS 2010 subject classifications: 62E20, 62G05, 62G20.<br />Key words and phrases: cyclic Poisson process, cyclic intensity function, nonparametric estimation, nearest neighbor estimator, period, consis- tency, L2-convergence.</p>

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40

Konovalova, S. A., K. S. Burmistrov, A. P. Avdeenko, V. V. Pirozhenko e M. V. Toropin. "Z,E-Isomerization of N-carbamoyl-1,4-benzoquinone monoimines". Voprosy Khimii i Khimicheskoi Tekhnologii, n. 1 (febbraio 2024): 29–36. http://dx.doi.org/10.32434/0321-4095-2024-152-1-29-36.

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Abstract (sommario):

There are two following processes in the solutions of N-carbamoyl-1,4-benzoquinone monoimines: Z,E-isomerization with respect to the C=N bond and hindered rotation around the –NH–C(O)– bond, which can be registered by 1H NMR spectroscopy. The experimental values of the activation energy of these processes (G298) were determined as 67.21 and 62.05 kJ/mol, respectively. Z,E-Isomerization with respect to the C=N bond was found to run under the inversion mechanism. The theoretical values of the barriers of 3,5-dimethyl- and 2,6-dimethyl-N-carbamoyl-1,4-benzoquinone monoimines were calculated by quantum chemical calculations, they agreed well with experimental data.

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41

Minematsu, Ayaka. "Abstract 6205: Visualizing dynamics of long non-coding RNA TUG1 in live glioblastoma cells". Cancer Research 83, n. 7_Supplement (4 aprile 2023): 6205. http://dx.doi.org/10.1158/1538-7445.am2023-6205.

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Abstract Long non-coding RNAs (lncRNAs) are transcripts longer than 200 nucleotides that are not translated into proteins. lncRNA TUG1 (taurine upregulated gene 1) is highly expressed in various cancers, including glioblastoma. Previously we found that TUG1 is an essential molecule for cancer cells to cope with excessive replication stress in the S phase. Albeit its importance to cell cycle-related function, how it is dynamically regulated during the cell cycle is entirely unknown. Here, we established a system visualizing endogenous TUG1 molecules in live cells. TUG1 was tagged with stem-loop motifs recognized by a specific binding protein fused with GFP. We tracked TUG1 RNA by the GFP signal for 22 hours in T98G glioblastoma cells and found that the expression started from the later G1 phase. When cells were treated with Hydroxy Urea, a chemical that interferes with replication and increases replication stress, the expression of TUG1 was further upregulated in the S phase within 20 mins. We also observed some TUG1 molecules accumulated in several nuclear locations. It may indicate that TUG1 assembles to protect damaged DNA loci efficiently. Our results suggest that the expression of TUG1 is regulated in a cell cycle-dependent manner and is strongly connected with its function of TUG1. The current live-cell imaging system could help further discover the critical roles of TUG1 in cancer cells. Citation Format: Ayaka Minematsu. Visualizing dynamics of long non-coding RNA TUG1 in live glioblastoma cells [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 6205.

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42

Biswas, Aniket, e Subrata Chakraborty. "Stress–Strength Reliability for the Unit-Lindley Distribution with an Application". Calcutta Statistical Association Bulletin 73, n. 1 (maggio 2021): 7–23. http://dx.doi.org/10.1177/0008068321998111.

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The unit-Lindley distribution has recently been introduced in the literature as an alternative to the beta and the Kumaraswamy distributions in support (0,1). This distribution enjoys many virtuous properties over the mentioned distributions. In this article, we address the issue of parameter estimation from a Bayesian perspective and study relative performance of different estimators through extensive simulation experiments. Significant emphasis is given to the estimation of stress–strength reliability employing classical as well as Bayesian approach. Application of an intuitive metric of discrepancy derived from stress–strength reliability is considered and computed for two different geographic regions with respect to an important public health indicator. AMS 2010 subject classifications: 62F10, 62P05.

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43

MANGKU, I. W., S. SYAMSURI e H. HERNIWAT. "CONSISTENCY OF KERNEL-TYPE ESTIMATORS FOR THE FIRST AND SECOND DERIVATIVES OF A PERIODIC POISSON INTENSITY FUNCTION". Journal of Mathematics and Its Applications 6, n. 2 (1 dicembre 2007): 47. http://dx.doi.org/10.29244/jmap.6.2.47-55.

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Abstract (sommario):

<p>We construct and investigate consistent kernel-type estimators for the ﬁrst and second derivatives of a periodic Poisson intensity function when the period is known. We do not assume any particular parametric form for the intensity function. More- over, we consider the situation when only a single realization of the Poisson process is available, and only observed in a bounded interval. We prove that the proposed estimators are consistent when the length of the interval goes to inﬁnity. We also prove that the mean-squared error of the estimators converge to zero when the length of the interval goes to inﬁnity.<br />1991 Mathematics Subject Classiﬁcation: 60G55, 62G05, 62G20.</p>

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44

Brunoski, Janaini, Juliana Carvalho Schleder, Debora Melo Mazzo, Maria Dagmar da Rocha, Paulo Vitor Farago e Guilherme Arcaro. "Compliance, Agreement and Reliability of the Assistance Team to Preventive Bundle for Urinary Tract Infections Associated with the Indwelling Bladder Catheter Procedure". Journal of Health Sciences 25, n. 2 (7 agosto 2023): 123–27. http://dx.doi.org/10.17921/2447-8938.2023v25n2p123-127.

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AbstractPreventive measures to avoid urinary tract infection associated with indwelling bladder catheter (UTI-IBC). Have been associated with significant impact on patient’s outcomes. The aim of this study was to verify UTI-IBC prevention bundle compliance, agreement and reliability of the CCU assistance team. Prospective, quantitative, observational research approved by the research ethics committee (number 2.991.245), performed in the adult CCU of a university hospital. Patients hospitalized in the CCU for more than 24 hours who used IBC were included. Data were collected for three months consisted of evaluating bundle care records obtained in two different ways: the registries of IBC care included on the medical records, and the daily bedside IBC bundle checklist. The sample consisted of 40, 77.5% were male and the mean age was 62.05(±15.6) years. The compliance of the CCU healthcare team to the prevention bundle was 100%. For the items "Need to use the catheter" and "Collector bag below ⅔” agreement was very high and reliability was strong. In the item "Catheter properly fixed", although the agreement was high, reliability was slight. The items "Collector bag below the bladder's level" and "Intimate hygiene" agreement were very high, but it was not possible to verify reliability due to the limitation of Kappa's test. The healthcare team adhered to the implementation of prevention bundles. The agreement among the items was high, but not all items presented strong reliability, showing the importance of the continuous formation of the healthcare team. Keywords: Urinary Tract Infections. Urinary Catheterization. Patient Care Bundles. Intensive Care Units. Patient Care Team. ResumoMedidas preventivas para evitar a infecção do trato urinário associada ao cateter urinário residente (UTI-IBC) têm sido associadas a um impacto significativo nos resultados dos pacientes. O objetivo deste estudo foi verificar a aderência, concordância e confiabilidade da equipe de assistência da UCC frente aos bundles de prevenção de ITU-CVD. Estudo prospectivo, quantitativo e observacional aprovado pelo comitê de ética (número 2.991.245), realizado na UCC adulto de um hospital universitário. Foram incluídos pacientes hospitalizados na UCC por mais de 24 horas que utilizavam o CVD. Os dados foram coletados por três meses e consistiram na avaliação dos registros obtidos de duas formas diferentes: prontuário eletrônico, e à beira do leito. A amostra foi composta por 40 pacientes, 77,5% eram do sexo masculino, com idade média de 62,05 (±15,6) anos. A adesão da equipe de saúde da UCC aos bundles de prevenção foi de 100%. Para os itens "Necessidade do uso de cateter" e "Bolsa coletora abaixo de ⅔", a concordância foi muito elevada e a confiabilidade foi forte. No item "Cateter devidamente fixado", embora a concordância elevada, a confiabilidade apresentou-se fraca. Os itens "Bolsa coletora abaixo do nível da bexiga" e "Higiene íntima" apresentaram concordância muito elevada, mas não foi possível verificar a confiabilidade devido à limitação do teste Kappa. A equipe de cuidados aderiu aos bundles de prevenção. A concordância entre os itens foi elevada, porém nem todos os itens apresentaram confiabilidade alta, sinalizando a importância da educação permanente da equipe. Palavras chave: Infecções Urinárias. Cateterismo Urinário. Pacotes de Assistência ao Paciente. Unidades de Terapia Intensiva. Equipe de Assistência ao Paciente.

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Mustafril, Mustafril. "Analisis Potensi Sumberdaya Air Daerah Aliran Sungai Singkil Menggunakan Model Tangki". Rona Teknik Pertanian 7, n. 1 (1 aprile 2014): 18–30. http://dx.doi.org/10.17969/rtp.v7i1.2643.

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Abstrak. Kebutuhan air terus meningkat seiring pertumbuhan penduduk, sedangkan air yang tersedia tidak selalu sejalan antara kebutuhannya menurut volume, tempat, waktu dan kualitasnya. Model-model hidrologi berdasarkan Tank Model telah dikembangkan dalam penelitian di Indonesia dan di dunia untuk memprediksi potensi sumberdaya air dalam suatu DAS. Optimasi parameter Tank Model dapat menggunakan Artificial Neural Network (ANN) yang mempunyai kemampuan untuk belajar dari data dan tidak membutuhkan waktu yang lama untuk mencapai model optimal. Tujuan analisis ini untuk menentukan seberapa besar potensi sumberdaya air di DAS Singkil berdasarkan optimasi parameter Tank Model. Hasil optimasi keseimbangan air parameter Tank Model DAS Singkil meliputi: karakteristik hidrologi DAS Singkil meliputi debit minimum 3,60 mm/hari, debit maksimum 17,80 mm/hari, dan rasio debit maksimum/minimum 4,94. Indikator kesalahan Tank Model DAS Singkil meliputi: R (Coefficient of Correlation) sebesar 0,6471, MAE (Mean Absolute Error) dan RMSE (Root Square Mean Error) masing-masing 2,18 dan 2,73. Total inflow 3.189,48 mm/tahun dan total outflow 3.155,64 mm/tahun, yang terdiri dari: surface flow 11,75 mm/tahun, subsurface flow 669,84 mm/tahun, intermediate flow 62,05 mm/tahun, subbase flow 0,74 mm/tahun, dan base flow 2.411,26 mm/tahun. Berdasarkan total baseflow volume ketersediaan air total yang mengalir di Sungai Singkil mencapai 12.164 x 106 m3/tahun. Potensi sumberdaya air DAS Singkil untuk keperluan pertanian mencapai 3.438,4 x 106 m3/tahun Analysis of Potential Water Resources at Singkil Watershed using Tank Model Abstract. Water demand continues to increase as the population growth, while the availability of water is not always consistent with the needs in terms of volume, place, time and its quality. Tank based hydrological models have been developed in many researches in Indonesia and in the world to predict the potential of water resources in a watershed. The optimalization of tank model parameter could be performed by using Artificial Neural Network (ANN), which has the capability to review the data and does not need much time to reach its optimized model. The purpose of this analysis is to determine the extent of a water resource potential in the Singkil Watershed based on the optimalization of Tank model parameter. Results of the optimalization of water balance of tank model parameter in Singkil Watershed include: hydrology characteristics of Singkil Watershed consisting of minimum debit of 3.60 mm/day, maximum debit 17.80 mm/day, and ratio of maximum/minimum debit is 4.94. Error indicators of Tank model in Singkil Watershed include Coefficient of Correlation (R), which is 0.6471, Mean Absolute Error (MAE) and Root Square Mean Error (RMSE), which are 2.18 and 2.73, respectively. Several parameters obtained include total inflow (3,189.48 mm/year) and total outflow (3,155.64 mm/year) consisting of surface flow 11.75 mm/year, subsurface flow (669.84 mm/year), intermediate flow (62.05 mm/year), sub-base flow (0.74 mm/year), and base flow (2,411.26 mm/year). Based on the total base flow, the total volume of water availability flowing in Singkil River reaches 12,164 x 106 m3/year. The potential of water resources in Singkil Watershed for agriculture is 3,438.4 x 106 m3/year

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RĂDUŢOIU, Daniel. "The Conservation Status of Grassland Habitats Belonging to Protected Areas from Oltenia ‘Natura 2000’ Site, Romania". Notulae Scientia Biologicae 7, n. 4 (13 dicembre 2015): 430–34. http://dx.doi.org/10.15835/nsb749726.

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In the present paper, are rendered the results of the research referring to the conservation status of the grasslands from two sites ‘Natura 2000’ located in Oltenia region, in South-Western part of Romania: ROSCI0202 Oltenia Forest Steppe and ROSCI0039 Ciuperceni - Desa. Within these sites, there are five habitats: 62C0* Ponto-Sarmatic steppes, 6260* Pannonic sand steppes, 6440 Alluvial meadows of river valleys of the Cnidion dubii, 6510 Lowland hay meadows (Alopecurus pratensis, Sanguisorba officinalis) and 1530* Pannonic salt steppes and salt marshes. The investigation of the conservation status of these habitats was carried out by assessing their conservation status at EU level, namely by assigning them to one of the four categories – “favourable”, “unfavourable-inadequate”, “unfavourable-bad”, and “unknown” – according to the stated attributes for each habitat, to the threats of destruction and to the dangers that may lead to their destruction or disappearance. By applying the evaluation matrix of the conservation state of the five habitats from the two sites Natura 2000, only three of the five studied habitats have a good conservation status: 62C0* Ponto-Sarmatic steppes, 6260* Pannonic sand steppes, 6440 alluvial meadows of river valleys of the Cnidion dubii. The habitat 1530* Pannonic salt steppes and salt marshes have a good-moderate status while 6510 Lowland hay meadows (Alopecurus pratensis, Sanguisorba officinalis) has amoderate-poor status. Referring to the characteristic structure and functions to the type of habitat, the research revealed that in numerous areas occupied by the five habitats good conservation conditions are not good.

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Dixon, William V., Pierre Chayer, I. N. Reid e Marcelo Miguel Miller Bertolami. "Observations of the Ultraviolet-bright Star Barnard 29 in the Globular Cluster M13 (NGC 6205)". Astronomical Journal 157, n. 4 (20 marzo 2019): 147. http://dx.doi.org/10.3847/1538-3881/ab0b40.

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48

Dixon, William V., Pierre Chayer, I. N. Reid e Marcelo Miguel Miller Bertolami. "Observations of the Ultraviolet-Bright Star Barnard 29 in the Globular Cluster M13 (NGC 6205)". Proceedings of the International Astronomical Union 14, S343 (agosto 2018): 385–86. http://dx.doi.org/10.1017/s1743921318005057.

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AbstractWe have analyzed FUSE, COS, GHRS, and Keck/HIRES spectra of the UV-bright star Barnard 29 in M13. Fits to the star’s optical spectrum yield Teff = 20,000 ± 100 K and log g = 3.00 ± 0.01. Using modern stellar-atmosphere models, we are able to reproduce the complex shape of the Balmer H.. feature. We derive photospheric abundances of He, C, N, O, Mg, Al, Si, P, S, Cl, Ar, Ti, Cr, Fe, Ni, and Ge. Barnard 29 exhibits an abundance pattern typical of the first-generation stars in M13, enhanced in oxygen and depleted in aluminum. We see no evidence of significant chemical evolution since the star left the RGB; in particular, it did not undergo third dredge-up. Previous workers found that the star’s FUV spectra yield an iron abundance about 0.5 dex lower than its optical spectrum, but the iron abundances derived from all of our spectra are consistent with one another and with the cluster value. We attribute this difference to our use of model atmospheres without microturbulence. By comparing our best-fit model with the star’s optical magnitudes, we derive a mass M*/M=0.40 − 0.49 and luminosity log L*/L⊙=3.20 − 3.29, depending on the cluster distance. Comparison with stellar-evolution models suggests that Barnard 29 evolved from a ZAHB star of mass M*/M⊙∼0.50, placing it near the boundary between the extreme and blue horizontal branches.

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49

Forbes, D., e P. C. Dawson. "A photoelectric BVRI sequence in the field of the globular cluster NGC 6205 (M 13)". Publications of the Astronomical Society of the Pacific 98 (gennaio 1986): 102. http://dx.doi.org/10.1086/131726.

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50

Pamungkas, Iing, e Heri Tri Irawan. "Analisis Break-Even Point pada Usaha Produksi Minyak Nilam di Kabupaten Aceh Selatan". Journal Industrial Servicess 6, n. 2 (1 marzo 2021): 112. http://dx.doi.org/10.36055/62005.

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