2,789 research outputs found
Buckle-Explicit united algorithm calculation model.
No full textBuckle-Explicit united algorithm calculation model.</p
Bale Tie Buckle.
No full textPatent for a new bale tie buckle made of wire material "in which the buckle is closed by the strain or stress on the bale tie" (lines 11-14), including illustrations
Buckle-Making Machine
No full textPatent for a buckle making machine for forming wires into tie buckles for bales of cotton, hay, etc. Illustrations included
Automated Negotiation for Provisioning Virtual Private Networks Using FIPA-Compliant Agents
No full textThis paper describes the design and implementation of negotiating agents for the task of provisioning virtual private networks. The agents and their interactions comply with the FIPA specification and they are implemented using the FIPA-OS agent framework. Particular attention is focused on the design and implementation of the negotiation algorithms
On the velocity of buckle propagation in a beam on a nonlinear elastic-foundation
No full textThe paper revisits a simple beam model used by Chater et al. (1983, Proc. IUTAM Symp. Collapse, Cambridge University Press) to examine the dynamics of propagating buckles on it. It was found that, if a buckle is initiated at a constant pressure higher than the propagation pressure of the model (P-p), the buckle accelerates and gradually reaches a constant velocity which depends upon the pressure, while if it is initiated at P-p, the buckle propagates at a velocity which depends upon the initial imperfection. The causes for the difference are also investigated
Bale Tie Buckle.
No full textPatent for a bale tie buckle where "an internal shoulder adapter to cooperate with the tie or band to prevent the latter from accidentally slipping through the entrance throat in the buckle when the tie is slackened" (lines 16-20)
Cost Analysis of Scleral Buckle and Pars Plana Vitrectomy for Retinal Detachment Surgery
No full textÁlvaro J Rallo-López,1 Rafael Martínez-Costa Pérez2 1Department of Ophthalmology, Clínica Baviera, Valencia, Spain; 2Department of Ophthalmology – Retina and Vitreous, Hospital Universitario y Politécnico La Fe, Valencia, SpainCorrespondence: Álvaro J Rallo-López, Email [email protected] and Objective: To compare the cost and utility of scleral buckle (SB) and pars plana vitrectomy (PPV) techniques for repairing moderately complex rhegmatogenous retinal detachment (RRD).Patients, Materials, and Methods: A cost-utility analysis was conducted using data from the Primary Retinal Detachment Outcomes Study (PRO) and a study conducted by the author. Total costs, patient utility over a lifetime, and cost per quality-adjusted life year (QALY) were calculated for each surgical procedure.Results: The cost of scleral buckle surgery was € 287.93, with an estimated lifetime QALY of 7.49. Costs per QALY were € 38.44. According to the PRO study and Belin et al, total costs were $5975, with a lifetime QALY of 5.4 and costs per QALY of $1106. The cost of pars plana vitrectomy (PPV) was € 1468.26, with an estimated lifetime QALY of 6.84 and costs per QALY of € 214.65. Based on the PRO study and Belin et al, total costs were $8125, with a lifetime QALY of 4.7 and costs per QALY of $2196.Conclusion: Repairing moderately complex RRD presents a highly cost-effective profile for both SB and PPV techniques, well below recommended QALY thresholds. SB demonstrated a slightly more favorable profile compared to PPV.Keywords: retinal detachment, pars plana vitrectomy, scleral buckle, cost-utility analysis, QAL
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