We consider an n job, one machine scheduling problem in which all jobs have a common due date. The objective is to determine the optimal value of this date and sequence minimize total penalty function. This function based on earliness or lateness each job selected sequence. present polynomial bound algorithm for solution along with proof optimality, numerical example discuss some extensions.

The burden of neurological disorders is increasing, but access to care limited. Providing specialty patients via telemedicine could help alleviate this growing problem.To evaluate the feasibility, effectiveness, and economic benefits using web-based videoconferencing (telemedicine) provide with Parkinson disease in their homes.A 7-month, 2-center, randomized controlled clinical trial.Patients' homes outpatient clinics at 2 academic medical centers.Twenty Internet home.Care from a specialist...

Electronic Data Interchange (EDI) is an emerging type of standardized inter-organizational information system. We analyze the impact EDI on upstream suppliers’ competitive position in a simple two-level hierarchical market structure where buyer faces linear demand curve and competing heterogeneous suppliers have upward-sloping marginal cost function. show that adoption can generate positive externalities for negative (or competitive) other suppliers. As result, provides price premium to...

The Internet's computational power and flexibility have made auctions a widespread integral part of both consumer business markets. Though online are multi-billion dollar annual activity, with growing variety sophisticated trading mechanisms, scientific research on them is at an early stage. This paper analyzes the current state management science auctions. It develops broad agenda for issues such as behavior auction participants, optimal design auctions, integration into ongoing operation...

Economic lot sizing and batching models often assume reliable manufacturing facilities. In this research, we focus on the effects of machine breakdowns corrective maintenance economic decisions. Two production control policies are proposed for coping with these stochastic interferences. The first policy assumes that interrupted lots is not resumed after a breakdown. Instead, on-hand inventory depleted before new cycle initiated. Under second studied here, immediately breakdown, if current...

The Internet provides an unprecedented capability for sellers to learn about their customers and offer custom products at special prices. In addition, customization is more feasible today because of advances in manufacturing technologies that have improved sellers' flexibility. We first develop a model product flexible pricing incorporate the salient roles reducing costs designing producing tailored consumer goods. show how monopoly seller may earn highest profits by both standard can raise...

Given processing times of n jobs on a single machine with penalties for earliness and tardiness associated assignment due-dates, the objective is to select optimal due-dates sequence. Scheduling procedure solution this problem presented along proof optimality illustrative numerical examples.

The evidence is clear that a lack of attention to structured tool management has resulted in the poor performance many manufacturing systems. Plant tooling systems affect product design options, machine loading, job batching, capacity scheduling, and real-time part routing decisions. With increasing automation systems, there growing need integrate more thoroughly into system design, planning control. This paper critically evaluates various approaches, identifying operational tradeoffs...

Medical specialists treating chronic conditions typically face a heterogeneous set of patients. Such heterogeneity arises because differences in medical as well the travel burden each patient faces to visit clinic periodically. Given this heterogeneity, we compare strategic behavior revenue-maximizing and welfare-maximizing prove that former will serve smaller population, spend more time with patients, have shorter waiting times. We also analyze impact telemedicine technology on utility...

Companies increasingly are providing customer service through social media, helping customers on a real-time basis. Although some traditional call centers might prioritize based their expected business values, the grounds for differential cu

Political and public health leaders promoting COVID-19 vaccination should identify the most relevant criteria driving decision. Social media is increasingly used as a source of data powerful communication tool to increase vaccination. In December 2020, we performed cross-sectional social media-based survey addressing personal sentiments toward in USA. Our primary research objective socio-demographic characteristics reasons for 1644 participants’ attitudes regarding We present clear evidence...

Abstract The Internet commerce technologies have significantly reduced sellers' costs of collecting buyer preference information and managing multiple prices. Advanced manufacturing also improved flexibility. These changes allow an online seller to offer custom products at discriminatory We show that these significant advantages early adopter who gains market share profits the expense conventional seller. Not only does customizing charge more for customized products, it provides standard but...

We study the problem of selecting economic lot size for an unreliable manufacturing facility with a constant failure rate and general randomly distributed repair times. Safety stocks must be used to meet managerially prescribed service level (the fraction lost sales) because these stochastic interventions reduce effective production capacity. develop bounds on range feasible levels investigate impact several system parameters this range. introduce easily implementable control policy (but do...

This paper is concerned with the study of constant due-date assignment policy in a dynamic job shop. Assuming that production times are randomly distributed, each has penalty cost some non-linear function its and actual completion time. The due date found by adding to time arrives allowed shop lead customer might expect between placing order delivery. objective minimize expected aggregate per subject restrictive assumptions on priority discipline functions. includes (1) increases increasing...

A performance evaluation methodology for selecting flexible manufacturing systems (FMS) is described. Flexible incorporate numerical control machines with robotic material-handling units working automatically under computer control. The relevant issues are addressed by a framework that treats both tangible and intangible decision factors. analysis carried out through the analytic hierarchical process. real industrial application of model reported.

We discuss the optimal way for a software vendor to license software: perpetual at posted price, subscription contract that subscribers receive automatic updates periodic payment, or hybrid approach involves both. By addressing specific issues in market such as network effects, quality uncertainty, upgrade compatibility, and vendor's ability commit future prices dynamic environment, we demonstrate how can manage trade-offs of licensing optimize profit, well corresponding welfare effect on...

Objective To determine whether synchronous video-based telemedicine visits with specialists are feasible and to evaluate clinical effectiveness, patient perceptions, other benefits of for follow-up migraine care in a tertiary headache center. Design A one-year, randomized trial. Results Fifty patients were screened 45 entered the study (43 women, two men). Out 96 scheduled visits, 89 successfully conducted using telemedicine. Eighteen (out 22) cohort 12 23) in-office completed study. In this...

Over the past 10 years, many healthcare organizations have made significant investments in automating their clinical operations, mostly through introduction of advanced information systems. Yet impact these on staffing is still not well understood. In this paper, we study effect technology (IT)-enabled automation decisions facilities. Using unique nursing home IT data from 2006 to 2012, find that licensed nurse level decreases by 5.8% high-end homes but increases 7.6% low-end after adoption...

This paper introduces the generic concept of processing rates as decision variables in Flexible Manufacturing Systems (FMS's). The objective is to determine minimum cost given FMS throughput target, work-in-process level, part routes, transporter delays, and variable capacity function for each machine. A nonlinear Mean Value Analysis queueing network optimization methodology developed control bottlenecks queue lengths are varied. further provides average marginal unit production costs along...

Objective: To determine the current practice and plans for telemedicine at leading US neurology departments. Design Setting: An electronic survey was sent to department chairs, administrators, or faculty involved in 47 departments representing top 50 hospitals as ranked by U.S. News World Report. Main Outcome Measures: Current use, size, scope, reimbursement, perceived quality of services. Results: A total 32 individuals from 30 responded (64% response rate). The primary respondents were...