Joint location-inventory problem with differentiated service levels using critical level policy

2015 ◽  
Vol 83 ◽  
pp. 141-157 ◽  
Author(s):  
P. Escalona ◽  
F. Ordóñez ◽  
V. Marianov
Keyword(s):  
Critical Level ◽  
Inventory Problem ◽  
Differentiated Service ◽  
Service Levels ◽  
Joint Location

A hybrid Markov process-mathematical programming approach for joint location-inventory problem under supply disruptions

2018 ◽  
Vol 52 (4-5) ◽  
pp. 1147-1173 ◽  
Author(s):  
Ehsan Dehghani ◽  
Mir Saman Pishvaee ◽  
Mohammad Saeed Jabalameli
Keyword(s):  
Supply Chain ◽  
Markov Process ◽  
Mathematical Programming ◽  
Simulated Annealing Algorithm ◽  
Mixed Integer ◽  
Programming Approach ◽  
Second Phase ◽  
Optimization Approach ◽  
Inventory Problem ◽  
Joint Location

This paper introduces a joint location-inventory problem, in which facilities become temporarily unavailable. A hybrid approach based on the Markov process and mathematical programming techniques is presented to design the distribution network of a supply chain in an integrated manner. In the first phase, the Markov process derives some performance features of inventory policy. In the second phase, using outputs of the Markov process, the location-inventory problem is formulated as a mixed-integer nonlinear programming model. Moreover, a robust possibilistic programming approach is utilized, which is able to provide a more stable supply chain structure under almost all possible values of imprecise parameters. Since the proposed problem is complicated to solve by means of exact methods, we develop a simulated annealing algorithm in order to find near-optimal solutions in reasonable computational times. The obtained computational results reveal the efficiency and effectiveness of the proposed solution approach. Finally, some insights are provided and the performance of the proposed robust optimization approach is compared to traditional possibilistic chance constrained method.

Tabu Search Heuristic for Joint Location-Inventory Problem with Stochastic Inventory Capacity and Practicality Constraints

2017 ◽  
Vol 18 (1) ◽  
pp. 51-84 ◽  
Author(s):  
Puntipa Punyim ◽  
Ampol Karoonsoontawong ◽  
Avinash Unnikrishnan ◽  
Chi Xie
Keyword(s):  
Tabu Search ◽  
Inventory Problem ◽  
Search Heuristic ◽  
Stochastic Inventory ◽  
Joint Location

Studies on mosquito density in urban Kano: a study to calculate larval indices in municipal area of Gwale, Kano, Nigeria

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
A.B. Umar ◽  
A.H. Dankaka ◽  
M. Manjur Shah
Keyword(s):  
Local Government ◽  
Critical Level ◽  
Cross Sectional Study ◽  
Local Government Area ◽  
Mosquito Density ◽  
Sectional Study ◽  
Cross Sectional ◽  
Potential Sources ◽  
Mosquito Breeding ◽  
Water Holding

The study is carried out to standardize larval indices namely House Index, Container Index and Breteau Index and also to identify the major breeding sources of mosquitoes in the residential environment in and around the Gwale Local government area of  Kano, Nigeria. A cross-sectional study by selecting 50 houses randomly from the 6 wards of Municipality was employed. Every water holding container indoors and outdoors were counted and searched for larval presence and noted on a pretested format. In this study, 300 houses were surveyed in 21 days out of which 94.33% (283 houses) were found to have potential sources for mosquito breeding. All the entomological indices were found to be above the critical level. House Index = 28.67%; Container Index = 12.14%; Breteau Index = 64.00% showing high chances for outbreaks of mosquito borne diseases. The area is prone to mosquito borne disease like malaria and therefore warrants interventions from the competent.

Medical Tourism in India- A Paradigm Shift

2015 ◽  
Vol 8 (2) ◽  
Author(s):  
Ajay Kumar Dogra ◽  
Pooja Dogra
Keyword(s):  
Paradigm Shift ◽  
Medical Tourism ◽  
Tourism Industry ◽  
Success Rates ◽  
Indian Government ◽  
Service Levels ◽  
Healthcare Facilities ◽  
Treatment Facilities ◽  
World Class ◽  
Pharmaceutical Industries

The health tourism Industry is witnessing a sudden paradigm shift in last five years. India has become a home of traditional medicine that has been practiced for several thousand years as a part of manav dharma to give relief to the needy and mostly free of cost. With modern diagnostic and treatment facilities, experienced surgeons, one of the largest pharmaceutical industries in world, and a tradition of caring, India provides world class surgical and healthcare facilities, with comparable success rates and prompt service levels. The potential of medical tourism is such that it can even surpass the revenue earned from IT sector. Recognizing the pivotal contribution of medical tourism to the economic development, the Indian Government has initiated numerous measures to promote this vary young industry to attract international tourism. This has motivated to identify recent trends and opportunities in India for the medical and healthcare tourism, and to explore the critical factors which can lead to success of initiatives taken by ministry of tourism for the development of medical tourism in India. Finally paper suggests measures to enhance medical tourism in the country.

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