Results 61 to 70 of about 9,061 (184)

Estructura y diversidad arbórea de bosques tropicales caducifolios secundarios en la Reserva de la Biosfera Sierra de Huautla, Morelos

open access: yesRevista Mexicana de Biodiversidad, 2018
Se estudió la recuperación en riqueza, composición, estructura y diversidad arbórea en 3 condiciones de bosque tropical caducifolio secundario con diferente tiempo de abandono (C35, C45 y C65 años) en el sureste del estado de Morelos.
Leonardo Alejandro Beltrán-Rodríguez   +7 more
doaj   +1 more source

Optimizing Financial Data Analysis: A Comparative Study of Preprocessing Techniques for Regression Modeling of Apple Inc.’S Net Income and Stock Prices

open access: yesStudia Universitatis Vasile Goldis Arad, Seria Stiinte Economice
This article presents a comprehensive methodology for processing financial datasets of Apple Inc., encompassing quarterly income and daily stock prices, spanning from March 31, 2009, to December 31, 2023.
Ungar Kevin, Oprean-Stan Camelia
doaj   +1 more source

Perbandingan Algoritma Nearest Neighbour, C4.5 dan LVQ untuk Klasifikasi Kemampuan Mahasiswa

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2013
Abstrak Pada pelaksanaan acara perkuliahan atau saat proses balajar mengajar, dosen sering terkendala dengan kemampuan mahasiswa pada suatu matakuliah di satu kelas yang tidak merata.
Muhammad Fakhrurrifqi, Retantyo Wardoyo
doaj   +1 more source

Flow Curves for C45 Steel at Abrupt Changes in the Strain Path

open access: yesCIRP Annals, 1988
Many industrial forming processes involve a non-straight strain path. In general, a deviation from a straight strain path is accompanied by a change in the flow curve. The deviations that lead to a reduced flow stress are especially important because they may lead to instability.
Sillekens, W.H.   +2 more
openaire   +2 more sources

EXAMINATION OF 3D SURFACE TOPOGRAPHY OF DIAMOND BURNISHED C45 WORKPIECES

open access: yesCutting & Tools in Technological System, 2019
Nowadays cold working operations like rolling, burnishing are important finishing methods. In this paper the diamond burnishing of external cylindrical surfaces are studied. The principle of this process is that a pressing tool, which goes along the surface of the workpiece with linear motion having given parameters (e.g.
Ferencsik, Viktoria, Varga, Gyula
openaire   +4 more sources

Analysis of the Determinants of Technological Innovations Within Agri-Food Companies in Morocco

open access: yesFolia Oeconomica Stetinensia
The commitment of manufacturers in research and development activities (R&D) and the realization of technological innovations have become effective means of stimulating economic growth.
Dahani Zouhair   +3 more
doaj   +1 more source

Analisis Preferensi Konsumen dalam Memilih Produk Hortikultura Menggunakan Metode Algoritma C45 dan Naive Bayes

open access: yesEmitor: Jurnal Teknik Elektro
Saat ini, pertanian dan hortikultura memainkan peran yang sangat penting dalam perekonomian banyak negara, termasuk Indonesia. Dalam hortikultura, tomat dan cabai merupakan dua jenis tanaman sayur yang sering dibudidayakan.
Said Ridho
doaj   +1 more source

Comments on Linear Summation Hypothesis of Fatigue Failures

open access: yesPolish Maritime Research, 2014
This paper presents a comparative analysis of results of fatigue life calculations with the u se of the linear summation hypothesis of fatigue failures (LHSUZ), confronted with experimental test results.
Szala Grzegorz
doaj   +1 more source

Assessment of the Inhibition Efficiency of 3-amino-5-methylthio-1H-1,2,4-triazole Against the Corrosion of Mild Steel in Acid Chloride Solution

open access: yesInternational Journal of Electrochemical Science, 2017
Influence of 3-amino-5-methylthio-1H-1,2,4-triazole (AMTTA) concentration on the corrosion of C45 mild steel in acid chloride solutions were studied. The potentiodynamic (PD) polarization, electrochemical impedance spectroscopy (EIS) methods and quantum ...
Mieczyslaw Scendo   +1 more
doaj   +1 more source

Housing Price Prediction - Machine Learning and Geostatistical Methods

open access: yesReal Estate Management and Valuation
Machine learning algorithms are increasingly often used to predict real estate prices because they generate more accurate results than conventional statistical or geostatistical methods.
Cellmer Radosław, Kobylińska Katarzyna
doaj   +1 more source

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