CHEOPS, the ESA mission for exo-planets characterization: early operations and commissioning results

2020 ◽  
Author(s):  
Nicola Rando ◽  
Joel Asquier ◽  
Carlos Corral Van Damme ◽  
Kate Isaak ◽  
Francesco Ratti ◽  
...  
Keyword(s):  
Early Operations

scholarly journals Early operations have good effect on carpal tunnel syndrome in patients on long-term hemodialysis.

1990 ◽  
Vol 39 (2) ◽  
pp. 777-781
Author(s):  
Yoshiki Yoshihara ◽  
Kohtarou Imamura ◽  
Yoshifumi Nagatani ◽  
Eiji Hirano ◽  
Hiroyuki Takagi
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Good Effect ◽  
Tunnel Syndrome ◽  
Early Operations

scholarly journals Helium experiments on Alcator C-Mod in support of ITER early operations

2018 ◽  
Vol 58 (5) ◽  
pp. 056007 ◽  
Author(s):  
C.E. Kessel ◽  
S.M. Wolfe ◽  
M.L. Reinke ◽  
J.W. Hughes ◽  
Y. Lin ◽  
...  
Keyword(s):  
Early Operations

MSX contamination experiment ion mass spectrometer observations during early operations

1996 ◽  
Author(s):  
Robert E. Erlandson ◽  
Mark T. Boies ◽  
O. Manuel Uy ◽  
J. M. Grebowsky ◽  
Jack T. Coulson
Keyword(s):  
Mass Spectrometer ◽  
Early Operations

An Improved Genetic Algorithm For Just-In-Time Job-Shop Scheduling Problem

2012 ◽  
Vol 472-475 ◽  
pp. 2462-2467 ◽  
Author(s):  
Hong An Yang ◽  
Jin Yuan Li ◽  
Liang Liang Qi
Keyword(s):  
Job Shop ◽  
Job Shop Scheduling ◽  
Idle Time ◽  
Just In Time ◽  
Scheduling Problem ◽  
Job Shop Scheduling Problem ◽  
Improved Genetic Algorithm ◽  
Shop Scheduling ◽  
Insertion Mechanism ◽  
Early Operations

This paper studies a just-in-time job-shop scheduling problem (JITJSSP) in which each operation has an earliness cost or a tardiness cost if it is completed before or after its due date and the objective function is to minimize the total earliness and tardiness costs of all operations. In order to solve this problem, an improved genetic algorithm (IGA) is introduced in this paper. IGA utilizes an operation-based scheme to represent schedules as chromosomes. Then, each chromosome is processed through a three-stage mechanism. Firstly, the semi-active decoding process is employed to expand the search space of solutions and guarantee comprehensive solutions. Secondly, the greedy insertion mechanism for tardy operations is executed to move the tardy operations left to the appropriate idle time to reduce the tardiness costs. Finally, the greedy insertion mechanism for early operations is proposed to shift the early operations right to the suitable idle time to decrease the earliness costs. After the maximum number of generations is reached, IGA continues with selection, crossover and mutation. The experimental results finally show that most of solutions on the benchmarks are improved by our algorithm.

Bifrontal interhemispheric approach to aneurysms of the anterior communicating artery

1986 ◽  
Vol 64 (2) ◽  
pp. 183-190 ◽  
Author(s):  
Jiro Suzuki ◽  
Kazuo Mizoi ◽  
Takashi Yoshimoto
Keyword(s):  
Cerebral Arteries ◽  
Distal Portion ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Interhemispheric Approach ◽  
Interhemispheric Fissure ◽  
Early Operations ◽  
Temporary Clip ◽  
Fine Print

✓ The authors review their experience with the bifrontal interhemispheric approach in 603 cases of single anterior communicating artery (ACoA) aneurysms and describe the operative technique. With this approach, the olfactory tracts are dissected, and both A1 segments of the anterior cerebral arteries are identified subfrontally. The interhemispheric fissure is then dissected and A2segments are followed from the distal portion toward the ACoA complex. Following the administration of a combination of mannitol, vitamin E, and dexamethasone, a temporary clip is placed on at least the dominant A1 segment prior to dissection of the aneurysm itself. Once the aneurysm has been completely freed from the surrounding structures, the neck is ligated and clipped. If the aneurysm ruptures during surgery, temporary clips are placed on both A1 and A2 segments bilaterally and the operation proceeds in a completely dry field. With this method, it is possible to occlude any of the intracranial vessels for up to 40 minutes within 100 minutes of drug administration. To prevent the possibility of rerupture and the development of vasospasm in the period before aneurysm surgery, the authors have adopted a policy of performing ultra-early operations within 48 hours of the onset of symptoms. Among the 257 cases operated on during the 9 years since 1975, one-fifth have been operated on within 48 hours of rupture, and the in-hospital mortality rate has been only 4.3% (11 cases). Follow-up studies have shown that 87% of the 246 surviving patients have returned to useful lives.

Commissioning and early operations of the Large Binocular Telescope

2008 ◽  
Author(s):  
Richard F. Green ◽  
John M. Hill ◽  
James H. Slagle ◽  
Joar Brynnel ◽  
Norman J. Cushing ◽  
...  
Keyword(s):  
Early Operations
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