Results 21 to 30 of about 17,485,358 (248)

New Properties for Solving the Single-Machine Scheduling Problem with Early/Tardy Jobs

Journal of Intelligent Systems, 2017
This paper presents a mathematically enhanced genetic algorithm (MEGA) using the mathematical properties of the single-machine scheduling of multiple jobs with a common due date.
Allaoua Hemmak, Brahim Bouderah
doaj   +1 more source

Scheduling around a small common due date [PDF]

, 1991
A set of n jobs has to be scheduled on a single machine which can handle only one job at a time. Each job requires a given positive uninterrupted processing time and has a positive weight.
S.L. van de Velde, J.A. Hoogeveen, Velde, SL van de, Hoogeveen, JA, Hoogeveen, J.A. (Han), Velde, van de, S.L., Velde, S.L. (Steef) van de, Hoogeveen, J.A.   +7 more
core   +1 more source

Group sequencing around a common due date [PDF]

, 2008
The problem of scheduling groups of jobs on a single machine under the group technology assumption is studied. Jobs of the same group are processed contiguously and a sequence independent setup time precedes the processing of each group.
Kovalyov, Mikhail Y., Cheng, TCE, Ng, CTD, Ng, C.T., Kovalyov, MY, Lam, SS, Lam, S.S., Cheng, T.C. Edwin   +7 more
core   +1 more source

A heuristic for single machine common due date assignment problem with different earliness/tardiness weights

, 2023
This paper considers the common due date assignment for single machine weighted earliness/tardiness scheduling problem with different earliness and tardiness weights for jobs where the objective is to minimize the cost of the sum of weighted earliness ...
Oğuzhan Ahmet Arik, ARIK, OĞUZHAN AHMET   +1 more
core   +1 more source

A Unique Case of Concomitant Intraspinal Epidermoid Cyst and Lipoma Associated with Tethered Cord Syndrome

Indian Journal of Neurosurgery, 2022
Patients presenting with pain in lower back and paresthesia in lower limbs may have tethered cord causing the symptomology. Tethered cord may be associated with intradural tumors causing symptoms due to progressive increase in size.
Shrey Jain, Medha A. Vyas, Ajit K. Sinha
doaj   +1 more source

Using Ant Colony Algorithm to solve NP-Complete problems

مجلة علوم ذي قار, 2019
We consider the problem of scheduling jobs on a single machine about a common due date. Our objective is to determine the common due date and processing sequence of new jobs together with the re-sequencing of old jobs which minimize the sum of jobs ...
Waffa Abdul-Abbas
doaj   +4 more sources

Scheduling with Group Technology, Resource Allocation, and Learning Effect Simultaneously

Mathematics
This paper studies the single-machine group scheduling problem with convex resource allocation and learning effect. The number of jobs in each group is different, and the corresponding common due dates are also different, where the processing time of ...
Ming-Hui Li, Dan-Yang Lv, Yuan-Yuan Lu, Ji-Bo Wang   +3 more
doaj   +1 more source

The Evolving Story in the Genetic Analysis for Heart Failure

Frontiers in Cardiovascular Medicine, 2021
Genomic studies of cardiovascular diseases have achieved great success, not only in Mendelian genetic diseases such as hereditary arrhythmias and cardiomyopathies, but also in common diseases such as ischemic heart disease and atrial fibrillation ...
Kazuo Miyazawa, Kaoru Ito
doaj   +1 more source

Identification and characterization of gene-based SSR markers in date palm (Phoenix dactylifera L.)

BMC Plant Biology, 2012
Background Date palm (Phoenix dactylifera L.) is an important tree in the Middle East and North Africa due to the nutritional value of its fruit. Molecular Breeding would accelerate genetic improvement of fruit tree through marker assisted selection ...
Zhao Yongli, Williams Roxanne, Prakash C S, He Guohao   +3 more
doaj   +1 more source

Unexpected complication of arteriovenous fistula of the left common carotid to internal jugular vein following central venous catheterization

Chinese Journal of Traumatology, 2020
Incidence of inadvertent arterial puncture secondary to central venous catheter insertion is not common with an arterial puncture rate of
Tan Chor Lip Henry, Tan Jih Huei, Mohamad Yuzaidi, Lenny Suryani Safri, K. Krishna, Imran Alwi Rizal, Md Idris Mohamad Azim, Hanafiah Harunarashid   +7 more
doaj   +1 more source