196,215 research outputs found
Implementation of the Theory of Constraints in a Lean Manufacturing
No full textThis paper will present teh results obtained by integrating the classical approaches of lean manufacturing throught applying the Theory of Constrains, in particular with teh introduction of Drum-Buffer-Rope, in Engineering to Order production and in hight varaibility of products.
The results of the simulations that have been carried out show that there would be a significant improvement, under the same conditions of total lead time, on punctuality of delivery and performance enhancement both for light load regimes and, to a greater extet, on the regimes in overloaded conditions
On the Bursting Mechanism in Rotating Rings
No full textThe bursting mechanism in rotating, bored discs is theoretically reviewed in the light of published experimentalinformation. In particular, the segmentation sequence in bursting wheels is analysed according to a curved barmodelling and to a quasi-static loading, where a dynamic correction factor is introduced which reconciles theory withexperiments. Finally, a diagram reporting the number of wheel fragmented pieces in terms of the ratio of ring inner toouter radii is presented, based upon available experimental data and theoretical interpretation
Giorgio Nicolich, father of Urology in Trieste
No full textAim of the study: Until 1918 Trieste was part of the Habsburgic Empire. In this period the city was in full economic and demographic growth. In this context, among the medical and surgical society raised the figure of Giorgio Nicolich senior, brilliant surgeon and researcher. He was initially chief of the Surgical Division and gave birth lately to the Urological Division in 1887, in which he practiced until 1925, year of retirement and death.
Materials and methods: Giorgio Nicolich was born in Venice in 1852. He graduated in 1875 at the University of Padua, and became trainee of Tito Vanzetti (1809–1888), a surgeon particularly versed in urinary tract surgery and known for both routine surgical capacity and exceptional operations, that gave throughout his activity new and advanced boundaries to the uro-nephrology field. His activity was open to novelties like the use of radio needles for prostate cancer, the use of nephrectomy, mercurial care of the syphilis. After moving to Trieste, the year after his graduation, he entered the Trieste Civic Hospital as a secondary physician of the Division for chronic syphilitic and surgical diseases and became its chief in 1886. From 1887 he obtained the urological characterization of the Division, and the other surgical specialties were transferred to the pre-existing Surgical Division and to the new 10th Division. At the end of the Great War, in 1919 he became professor of Urology, retired in 1925, after an extension for merit of 5 years. In these last years he was joined by Carlo Ravasini, who succeeded him. Nicolich died in the same year. Results: He carried out a wide activity. He attended the Parisian school of Urology with Gujon and Albarran and, in 1921, he founded the Italian Society of Urology. He was an authority in the field of urology in the national and international landscape (he was a pupil in Vienna of Theodor Billroth) and was coauthor of the “Manual of Urology” and President of the Italian Society of Urology. He became also honorary member of the Urological Society of Berlin, of the Belgian Society and member of the Academy of Medicine of Constantinople. In 1924, the year before his death, he founded the Italian Archives of Urology. Discussion: Apart from his extraordinary ability as a surgeon, Giorgio Nicolich was a member of that small number of doctors born in Trieste or came to Trieste, who created a cohesive environment of remarkable level, between the various Divisions of the City Hospital. He is credited and reminded not only for have given life to the Urology of Trieste, but for have practiced avant-garde medicine and surgery, forming a new generation of specialist surgeons
Analisi del flusso di una linea di assemblaggio di prodotti di un'industria del mobile-arredo
No full textIl lavoro prevede di analizzare il flusso di materiali in una linea di assemblaggio automatico e di dimensionare le linee di imballo di antine, al fine di eliminare le eventuali situazioni di blocco causate dagli squilibri delle varie operazioni.
Per far ciò il gruppo di ricerca ha modellizzato la linea, utilizzando un software orientato agli oggetti, che ha consentito di simulare dinamicamente l'ambiente di lavoro e di confrontare le implicazioni derivanti dall'applicazione di decisioni alternative prima di rendere operativo il cambiamento
Applications of Lean Methodologies into a Semi-finished Wood Products Manufacturing
No full textThis work applies the principles for the value creation in the production process, leading to the drafting of a new production layout for a semi-finished wood products in industry of wood furniture. The Lean Manufactuirng concepts lead to a significant change for a future state map that correctly brings to the waste minimization. Finally, nine indices are set out to monitoring the process of proposed future state, allowing you to control the production process to see if problems will aris
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