Results 1 to 10 of about 70,429 (301)

Detection Method for Bolts with Mission Pins on Transmission Lines Based on DBSCAN-FPN

open access: yesZhongguo dianli, 2021
Bolts are the mostly used fasteners on transmission lines, and their defect detection is an important content for transmission line inspection. As the bolt with missing pins are small targets, their positioning is difficult and their features are hard to
Zhenbing ZHAO   +3 more
doaj   +1 more source

Delivering more to cell edge via joint multi‐cell non‐orthogonal multiple access and traffic offloading

open access: yesIET Networks, 2021
We consider leveraging the joint potential of non‐orthogonal multiple access (NOMA) and traffic offloading to benefit cell‐edge users in multi‐cell scenarios. We formulate the edge‐driven throughput maximisation problem where both the offloading decision
Yi Zhao, Di Yuan, Lei You
doaj   +1 more source

A review of physical experimental research methods of mine bolt

open access: yesMeikuang Anquan, 2023
Physical experiment is a commonly used research method in the field of modern natural science, but the experimental method in a single study is often limited, which cannot fully reflect the whole picture of the problem to be studied.
Xueling DU
doaj   +1 more source

Avaria by the bottom of a bolt on a diesel of engine [PDF]

open access: yesJournal of Research and Innovation for Sustainable Society, 2019
A drive from a diesel engine of a truck was broken into four parts during normal use. Damaged bolt caused longitudinal and transverse cracks. They started from the surface of the hole and stretched outward.
Negoita O.   +8 more
doaj   +1 more source

Soğuk Dövme Prosesi ile 20MnB4 Hammadde Kullanılarak Üretilen Cıvatanın Isıl İşlem Şartlarının Metalografik ve Mekanik Özelliklere Olan Etkisinin İncelenmesi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2018
Civataüretiminin kritik prosesi olan ısıl işlem prosesi; soğuk şekillendirilenmalzemenin metalografik ve mekanik özelliklere olan etkisinin araştırılması,hem proses verimi hemde ürün performans kriterleri açısındandeğerlendirildiğinde sektörde deneysel ...
ALPER Baygut   +2 more
doaj   +1 more source

On Characteristics of a Bolted Joint with a Tap Bolt

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1981
The purpose of this paper is to examine a distribution of contact pressures on the interface of a cylindrical clamped part fastened with a tap bolt to a base which is sufficiently larger than the clamped part. The analysis is treated as a contact problem of two bodies.
SAWA, Toshiyuki   +2 more
openaire   +3 more sources

Preparation and Electrochemical Performance of a Honeycomb-like Porous Anode Material

open access: yesInternational Journal of Electrochemical Science, 2017
Ground coffee is used to prepare a honeycomb-like porous anode material for Li-ion batteries. The microstructure and morphology of the as-prepared samples are characterized by X-ray diffraction and scanning electron microscopy.
Xin-xiu Li   +4 more
doaj   +1 more source

Influence Law of Foundation Pit Excavation on Stress of Surrounding Tunnel Bolt

open access: yesApplied Sciences, 2022
Due to the existence of a tunnel next to the foundation pit, the soil surrounding the foundation pit deforms into the foundation pit due to the excavation unloading during the process of foundation pit excavation, which causes the deformation of the ...
Shengbin Hu   +9 more
doaj   +1 more source

Failure Analysis of High Strength Galvanized Bolts Used in Steel Towers

open access: yesMetals, 2016
This paper analyses the failure of three bolts used in the structural connections of a number of steel towers located in northern Europe. The analysis comprises optical and scanning electron microscopy, microstructural and hardness analysis, mechanical ...
Jose Alberto Álvarez   +4 more
doaj   +1 more source

Study of the Load-Bearing Characteristics of Bolts under Asymmetric Freezing Conditions

open access: yesApplied Sciences, 2023
To investigate the load-bearing characteristics of anchor rods under asymmetric freezing conditions such as those in cold regions and the effect of frost swelling, a model test device was developed using a controlled-temperature environmental box and a ...
Jie Dong   +5 more
doaj   +1 more source

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