Results 31 to 40 of about 913,242 (189)

Analisis Hubungan Nilai Drilling Rate Index Dengan Point Load Index Pada Batuan Formasi Balikpapan Dan Formasi Pulaubalang

open access: yesJurnal Sosial Teknologi, 2023
Drilling rate index (DRI) merupakan ukuran dari kemudahan atau kesusahan dari pengeboran batuan, nilai DRI merupakan hasil kombinasi dari dua test yaitu brittleness test (S20) dan SJ value. Drilling rate index juga merupakan satuan yang sering digunakan untuk memprediksi kemampuan pengeboran dalam pembuatan suatu terowongan dan pengeboran pada proyek ...
Ronal Edi Gunawan Manullang   +4 more
openaire   +1 more source

Characterization of rock material by point load strength index test and direct cut

open access: yesMinerva, 2021
The objective of this work is to establish a relationship between the cutting time in rocks, determining a speed and the point load strength index test, Is (50), to characterize the rock in terms of resistance and avoid sending samples to laboratories. As a first stage, on andesite samples, 5 x 5 x 10 cm test tubes were made. After the elaboration they
Ernesto Patricio Feijoo Calle   +1 more
openaire   +2 more sources

Adhesive friction at the contact between rough surfaces using n-point asperity model

open access: yesEngineering Science and Technology, an International Journal, 2015
The paper describes a theoretical study of adhesive friction at elastic–plastic contact of rough surfaces based on n-point asperity model. Well defined adhesion index and plasticity index are used to study the prospective situations arising out of ...
Ajay K. Waghmare, Prasanta Sahoo
doaj   +1 more source

Temperature effect on the mechanical behavior of shale: Implication for shale gas production

open access: yesGeosystems and Geoenvironment, 2022
Deformational shale attributes such as fracture toughness, tensile strength, and axial point load strength (PLS) index under elevated temperatures are crucial for the petroleum and gas industries. Here, an attempt has been made to investigate the thermal
Vikram Vishal   +4 more
doaj   +1 more source

Distributed Generation as Voltage Support for Single Wire Earth Return Systems [PDF]

open access: yes, 2004
Key issues for distributed generation (DG) inclusion in a distribution system include operation, control, protection, harmonics, and transients. This paper analyzes two of the main issues: operation and control for DG installation.
Kashem, Mohammad, Ledwich, Gerard
core   +2 more sources

Analysis of failure behaviour of the anisotropic rocks in the point load index test

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The strength and deformational behaviour of rocks under loading conditions are important in underground excavations, mining and every civil engineering constructions as it determines the stability of such structures. This study aims to augment the existing know-how on such behaviour through analysis of point load tests conducted
D Acharya   +3 more
openaire   +1 more source

A Scalable, Portable, and Memory-Efficient Lock-Free FIFO Queue [PDF]

open access: yes, 2019
We present a new lock-free multiple-producer and multiple-consumer (MPMC) FIFO queue design which is scalable and, unlike existing high-performant queues, very memory efficient.
Nikolaev, Ruslan
core   +2 more sources

Hemoglobin A1c Levels Modify Associations between Dietary Acid Load and Breast Cancer Recurrence. [PDF]

open access: yes, 2020
BackgroundMetabolic acidosis promotes cancer metastasis. No prospective studies have examined the association between dietary acid load and breast cancer recurrence among breast cancer survivors, who are susceptible to metabolic acidosis.
Hsu, Fang-Chi   +4 more
core   +2 more sources

Optimum Weight Selection Based LQR Formulation for the Design of Fractional Order PI{\lambda}D{\mu} Controllers to Handle a Class of Fractional Order Systems

open access: yes, 2013
A weighted summation of Integral of Time Multiplied Absolute Error (ITAE) and Integral of Squared Controller Output (ISCO) minimization based time domain optimal tuning of fractional-order (FO) PID or PI{\lambda}D{\mu} controller is proposed in this ...
Das, Saptarshi   +4 more
core   +1 more source

A study of the communication cost of the FFT on torus multicomputers [PDF]

open access: yes, 1995
The computation of a one-dimensional FFT on a c-dimensional torus multicomputer is analyzed. Different approaches are proposed which differ in the way they use the interconnection network. The first approach is based on the multidimensional index mapping
Díaz de Cerio Ripalda, Luis Manuel   +2 more
core   +1 more source

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