نتایج جستجو برای: seismic upgrade
تعداد نتایج: 44777 فیلتر نتایج به سال:
The period of vibration is a fundamental parameter in the force-based design of structures as this parameter defines the spectral acceleration and thus the base shear force to which the building should be designed. This paper takes a critical look at the way in which seismic design codes around the world have allowed the designer to estimate the period of vibration for use in both linear static...
BACKGROUND Offering free glasses can be important to increase children's wear. We sought to assess whether "Upgrade glasses" could avoid reduced glasses sales when offering free glasses to children in China. METHODS In this cluster-randomized, controlled trial, children with uncorrected visual acuity (VA)< = 6/12 in either eye correctable to >6/12 in both eyes at 138 randomly-selected primary...
BACKGROUND Benefits of cardiac resynchronization therapy (CRT) on morbidity and mortality in selected patients are well known. Although the number of upgrade procedures from single- or dual-chamber devices to CRT is increasing, there are only sparse data on the outcomes of upgrade procedures compared with de novo CRT. This study aimed to evaluate clinical response and survival in patients recei...
The extent to which society benefits from an upgrade to a telecommunications network infrastructure depends on when that upgrade occurs. This paper discusses a proactive pricing approach in which the regulator defines a pricing policy to induce a profit-seeking monopoly carrier to upgrade the infrastructure at the socially desirable time. We discuss how the regulator can determine the optimal t...
A system that relies on object-oriented middleware comprises computational objects that are specific to the system’s purpose and middleware objects used for the transparent integration of the former. The efficient maintenance of such a system involves the dynamic upgrade of the aforementioned entities. So far, there have been various approaches dealing with the online upgrade of computational o...
OBJECTIVE To assess outcomes of pacemaker upgrade from single chamber ventricular to dual chamber. DESIGN Retrospective analysis of patients undergoing the procedure. SETTING Specialist cardiothoracic unit. PATIENTS 44 patients (15 female, 29 male), mean (SD) age at upgrade 68.2 (12.9) years. INTERVENTIONS Upgrade of single chamber ventricular to dual chamber pacemaker. MAIN OUTCOME M...
This paper proposes using an economical model in making the case for software upgrade at organizations in general and at educational institutions in particular. Cost-benefit Analysis (CBA) is a model widely used in economics by various organizations to select among alternatives and to justify making certain investments. Spending money or investing in software upgrade costs may need to be justif...
To date we are still unclear how ERP client-organizations make their ERP upgrade decision. In this research-in-progress, we (1) review literature on issues surrounding ERP upgrade decision-making, (2) formulate and postulate a conceptual model of ERP upgrade decision based on both the empirical research paper and trade press literature, and (3) empirically validate and modify the proposed conce...
Software upgrades are frequent. Unfortunately, many of the upgrades either fail or misbehave.We argue that many of these failures can be avoided for new users of the upgrade by exploiting the characteristics of the upgrade and feedback from the users that have already installed it. To demonstrate that this can be achieved, we build Mojave, the first recommendation system for software upgrades. ...
A common problem in library-based programming is the downward compatibility problem: will a program using an existing version of a library continue to function correctly with an upgraded version? As a step toward addressing this problem for libraries of reactive components we develop a theory that equips components with interface languages characterizing the interaction patterns user applicatio...
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