In this study, a two-echelon supplier-manufacturer system with finite production rate and lead time is proposed. It is assumed that shortage is not permitted and the lot size of manufacturer (second echelon) is m-factors of the lot size of supplier (first echelon) and supplier can supply the manufacturer’s lot size in several shipments in each cyc...

Rapid transformation across all sectors through Saudi Arabia’s vision 2030 initiatives led to an increase in construction activities. However, the industry has been already facing huge cost and time overruns, affecting stakeholders. The aim of this study is identify explore influential risk factors that lead completion delays overruns government-funded building projects Arabia, which have subje...

This work was performed to determine relations between car mass and driver injuries (serious or fatal) when cars of similar mass crash into each other head-on. This type of crash is examined because it is considered similar in some respects to a barrier crash. Data from the United States Fatal Accident Reporting System (FARS) are used to examine driver fatality likelihood as a function of car m...

This paper explores qualitative effects of lead-time uncertainty in a basic continuous-time single-item inventory model with Poisson demand and stochastic lead times. The objective is to minimize the infinite-horizon expected total discounted cost. Order costs are linear, so a base-stock policy is optimal. Traditionally and intuitively, people believe that a (stochastically) longer lead time re...

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Abstrak
 Kegiatan pembangunan proyek konstruksi sering terjadi keterlambatan. Pelaksanaan dibatasi oleh waktu dengan rencana biaya yang sudah ditentukan dalam perencanaan. Pengendalian tepat dapat mengurangi risiko terjadinya keterlambatan serta pembengkakan biaya. Salah satu mengalami adalah Gedung Stroke Center (Paviliun Flamboyan) RSUD Jombang. Faktor menjadi penyebab yaitu: (1) kurangn...