Results 41 to 50 of about 4,889,516 (137)

Compensation of the long-range beam-beam interactions as a path towards new configurations for the high luminosity LHC

Physical Review Special Topics. Accelerators and Beams, 2015
Colliding bunch trains in a circular collider demands a certain crossing angle in order to separate the two beams transversely after the collision. The magnitude of this crossing angle is a complicated function of the bunch charge, the number of long ...
Stéphane Fartoukh, Alexander Valishev, Yannis Papaphilippou, Dmitry Shatilov   +3 more
doaj   +1 more source

Fluorescent Aromatic Polyether Sulfones: Processable, Scalable, Efficient, and Stable Polymer Emitters and Their Single-Layer Polymer Light-Emitting Diodes

Nanomaterials
In this study, fully aromatic polyether sulfones were developed, bearing blue, yellow, and orange–red π-conjugated semiconducting units. Carbazole-, anthracene-, and benzothiadiazole-based fluorophores are copolymerized with a diphenylsulfone moiety.
Konstantinos C. Andrikopoulos, Despoina Tselekidou, Charalampos Anastasopoulos, Kyparisis Papadopoulos, Vasileios Kyriazopoulos, Stergios Logothetidis, Joannis K. Kallitsis, Maria Gioti, Aikaterini K. Andreopoulou   +8 more
doaj   +1 more source

Investigation of the Static Breakdown Voltage of the Lubricating Film in a Mechanical Ball Bearing

, 2018
In this paper, the current pulse (discharge) activity in a small bearing is investigated when current-limited DC voltages of different levels are applied to the shaft under varying rotational speeds and mechanical loads.
Abhishek Joshi, Jörgen Blennow
core   +1 more source

The male to female ratio at birth [PDF]

, 2014
The factors that influence the male to female ratio at birth are legion. Males are usually born in excess and stress decreases the ratio while wellbeing and good health tends to increase it.
Mamo, Julian, Grech, Victor E.
core   +1 more source

Some investigations on hybrid 3D printed PVDF-based functional prototypes

Next Materials
In the past decade, the polyvinylidene fluoride (PVDF) based composites processed by fused filament fabrication (FFF) and gel-printing routes have been widely used in various applications such as consumer products, pressure sensing, biomedical scaffolds,
Vinay Kumar, Gurwinder Singh, Minhaz Husain, Ranvijay Kumar, Harnarayan Meena, Rupinder Singh, MSJ Hashmi   +6 more
doaj   +1 more source

Detection of balls bearing Incipient defect by current analysis

, 2021
47th Annual Conference of the IEEE-Industrial-Electronics-Society (IECON), ELECTR NETWORK, OCT 13-16, 2021International audienceThe bearing problem is considered as the first factor responsible of defects in the electric machines.
Yazidi, Amine, Mahamad, Hassan Gaditto, Henao, Humberto, Betin, Franck, Segard, Eric, Vacossin, Bruno   +5 more
core   +1 more source

Magnetically Repulsive Cushion Triboelectric Nanogenerator for Rotating Machinery Structural Health Monitoring

Sensors
Rotor imbalance and abnormal vibration are classical operating conditions in rotating machinery and can often be identified by conventional vibration analysis.
Haojie Peng, Yufen Wu, Yanling Li, Yingjie He, Changke Wang, Xin Na, Qiang Tan, Wei Qiu, Xiaohong Yang   +8 more
doaj   +1 more source

An investigation of delay fault testing for multi voltage design

, 2009
Multi Voltage Design (MVD) has been successfully applied in contemporary processors as a technique to reduce energy consumption. This work is aimed at finding a generalised delay testing method for MVD.
Zain Ali, Noohul Basheer
core   +1 more source

Biotechnological methods for sorting sperm by sex

Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Ґжицького: Серія Ветеринарні науки
The article summarizes the current state and prospects of sperm sex-sorting biotechnologies in the context of the steady increase in global demand for livestock products and the need to intensify reproduction while preserving animal welfare.
V. Stefanyk, Ye. Kostyschyn, S. Kava, O. Katsaraba, M. Ivakhiv   +4 more
doaj   +1 more source

Whole-rock geochemistry and crystal chemistry of apatite at intrusive suites of the Qeynarjeh-Angouran district (west of Zanjan): an approach to the identification of skarn-causative granitoids and magmatic-metallogenic evolutions

Journal of Economic Geology
The Qeynarjah-Angouran district is located at the intersection of the Urumieh-Dokhtar and the Sanandaj-Sirjan structural zones in NW Iran. In this area, intrusive suites of Middle Triassic-Upper Jurassic age are exposed, including the Gharavol-Khane ...
Afsoon Dastour, Ebrahim Tale Fazel, Ashraf Torkian   +2 more
doaj   +1 more source