Dynamic modeling and simulation of the airflow cleaning device

The objective of the work is to study the flow behavior and to support the design of air cleaner by dynamic simulation.In a paper printing industry, it is necessary to monitor the quality of paper when the paper is being produced. During the production, the quality of the paper can be monitored by camera. Therefore, it is necessary to keep the camera lens clean as wood particles may fall from the paper and lie on the camera lens. In this work, the behavior of the air flow and effect of the airflow on the particles at different inlet angles are simulated. Geometries of a different inlet angles of single-channel and double-channel case were constructed using ANSYS CFD Software. All the simulations were performed in ANSYS Fluent. The simulation results of single-channel and double-channel case revealed significant differences in the behavior of the flow and the particle velocity. The main conclusion from this work are in following. 1) For the single channel case the best angle was 0 degree because in that case, the air flow can keep 60% of the particles away from the lens which would otherwise stay on lens. 2) For the double channel case, the best solution was found when the angle of the first inlet was 0 degree and the angle of second inlet was 45 degree . In that case, the airflow can keep 91% of particles away from the lens which would otherwise stay on lens.

Exploring knowledge worker motivation in autonomous and interdependent problem solving tasks on virtual platforms

The objective of this study is to understand why virtual knowledge workers conduct autonomous tasks and interdependent problem solving tasks on virtual platforms. The study is qualitative case study including three case organizations that tap the knowledge of expert networks, and utilize virtual platforms in the work processes. Research data includes 15 interviews, that is, five experts from each case company. According to the findings there are some specific characteristics in motivation to work on tasks on online platforms. Autonomy, self-improvement, meaningful tasks, knowledge sharing, time management, variety of contacts, and variety of tasks, and projects motivate virtual knowledge workers. Factors that may enhance individuals’ engagement to work on tasks are trust, security of continuous task flow and income, feedback, meaningful tasks and tasks that contribute to self-improvement, flexibility and effectiveness in time management, and virtual tools that support social interaction. The results also indicate that there are some differences in individuals’ motivation based on the tasks’ nature. That is, knowledge sharing and variety of contacts motivated experts who worked on interdependent problem solving tasks. Then again, autonomy and variety of tasks motivated experts who worked on autonomous tasks.

Double formule d'une lettre d'indulgences datée de l'année 1539 et émanée du maître, des frères et des gouverneurs de l'hôpital Saint-Louis des Quinze-Vingt de Paris

[Acte. 1539]

Melle Fondarana [i. e. Isabel Fonrodona], M. [Manuel] Alonso [vainqueurs du double mixte au championnat du monde de tennis à Saint-Cloud] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59417

30/5/20, finale du championnat [du monde] double entre Gobert - Laurentz et [Blackbeard - Mishu] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59455

30/5/20, finale du championnat [du monde] double entre Gobert - Laurentz et [Blackbeard-Mishu] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59456

Saint-Cloud, 24/05/20, Mme [Marie] Danet, Mlle [Marie] Conquet [double-dames du Championnat du monde de Tennis] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59399

Saint-Cloud, 23/5/20, Mlle Amblard-Decugis contre Mme Speranza-Shimidzu [double-mixte de tennis au Championnat du monde] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59402

Saint-Cloud, 24/5/20, Mme Danet et Mlle Conquet [double-dames de tennis au Championnat du monde] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59403

Mlle Subirana et Mlle Fondarana [i. e. Isabel Fonrodona, portrait des 2 joueuses du double-dames de tennis au Championnat du monde, à Saint-Cloud] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59404

Miss Hollman [i. e. Dorothy Holman], 30-5-20 [finale double dames du championnat du monde à Saint-Cloud avec Mrs Satterthwaite] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59468

Miss Hollman [i. e. Dorothy Holman], 30-5-20 [finale double dames du championnat du monde à Saint-Cloud avec Mrs Satterthwaite] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59469

10-6-20, championnats de France [de] tennis, Miss Lenglen [associée en double à Mlle d'Ayen, courts de la Croix-Catelan] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59628

10-6-20, championnats de France [de] tennis, Miss Lenglen [associée en double à Mlle d'Ayen, courts de la Croix-Catelan] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59629

10-6-20, championnats de France [de] tennis, Miss Lenglen [associée en double à Mlle d'Ayen, courts de la Croix-Catelan] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59630