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An Ordering Policy for Deteriorating Items with Time-Dependent Quadratic Demand and Salvage Value under Permissible Delay in Payment

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American Journal of Operations Research 2019年第5期9卷 201-218页

作者： Trailokyanath Singh madan mohan Muduly Chittaranjan Mallick Rahul Kumar Gupta Hadibandhu Pattanayak Department of Mathematics C. V. Raman College of Engineering Bhubaneswar India Department of Mathematics CET Techno Campus Bhubaneswar India Department of Mathematics Parala Maharaja Engineering College Berhampur India Department of Mathematics Ravenshaw University Cuttack India

The article deals with an economic order quantity (EOQ) inventory model for deteriorating items in which the supplier provides the purchaser a permissible delay in payment. This is so when deterioration of units in the inventory is subject to constant deterioration rate, demand rate is quadratic function of time and salvage value is associated with the deteriorated units. Shortages in the system are not allowed to occur. A mathematical formulation is developed when the supplier offers a permissible delay period to the customers under two circumstances: 1) when delay period is less than the cycle of time;and 2) when delay period is greater than the cycle of time. The method is suitable for the items like state-of-the-art aircrafts, super computers, laptops, android mobiles, seasonal items and machines and their spare parts. A solution procedure algorithm is given for finding the optimal order quantity which minimizes the total cost of an inventory system. The article includes numerical examples to support the effectiveness of the developed model. Finally, sensitivity analysis on some parameters on optimal solution is provided.

关键词： Constant Deterioration Rate Deteriorating Items Economic Order Quantity Permissible Delay in Payment Salvage Value Time-Dependent Quadratic Demand Rate

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Assessment of quadriceps muscle thickness using bedside ultrasonography by nurses and physicians in the intensive care unit:Intra- and inter-operator agreement

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World Journal of Critical Care Medicine 2019年第7期8卷 127-134页

作者： Rohit Kumar Tajamul Hussain Shah Vijay Hadda Pawan Tiwari Saurabh Mittal Karan madan Maroof Ahmad Khan Anant mohan Department of Pulmonary Critical Care and Sleep MedicineAll India Institute of Medical SciencesNew Delhi 110029India Department of Biostatistics All India Institute of Medical SciencesNew Delhi 110029India

BACKGROUND Data regarding the agreement among multiple operators for measurement of quadriceps muscle thickness by bedside ultrasonography(USG)are *** To statistically assess the agreement among 5 operators for measurement of quadriceps muscle thickness on bedside *** This was a cross-sectional observational *** 5 operators of varied experience(comprised of 1 critical care consultant,2 fellows,and 2 nurses)independently measured quadriceps muscle thickness in triplicate for 45 critically ill patients each,using ***-and interrater agreement rates among the 5 operators were assessed using intraclass correlation coefficient(ICC)and expressed with 95%confidence interval(CI).RESULTS The 5 operators produced a total of 135 readings and 675 observations for ICC calculations to determine the intraoperator and interoperator variations *** intraoperator agreement,the overall ICC(95%CI)was 0.998(0.997,0.999)for operator 1,0.998(0.997,0.999)for operator 2,0.997(0.995,0.999)for operator 3,0.999(0.998,0.999)for operator 4,and 0.998(0.997,0.999)for operator *** interoperator agreement,the overall ICC(95%CI)was 0.977(0.965,0.986;P<0.001)for reading 1,0.974(0.960,0.984;P<0.001)for reading 2,and 0.975(0.961,0.985;P<0.001)for reading *** USG measurement of quadriceps muscle thickness was not dependent on clinical experience,supporting training for nurses in it.

关键词： Agreement Intensive care unit Critical illness Muscle thickness Quadricepsmuscle Ultrasonography

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Water productivity for living aquatic resources in floodplains of Northwestern Bangladesh

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Journal of Coastal Life Medicine 2014年第4期 324-331页

作者： Md.Istiaque Hossain Md.Mahmudul Alam Chamhuri Siwar madan mohan Dey Mazlin Mokhtar Abdul Hamid Jaafar Md.Yeamin Hossain Department of Fisheries Faculty of AgricultureUniversity of RajshahiBangladesh Institute for Environment and Development(LESTARI) Universiti Kebangsaan Malaysia(UKM)43600 UKM BangiSelangorMalaysia Aquaculture Economics and Marketing Aquaculture/Fisheries CenterUniversity of Arkansas Pine BluffUSA School of Economics Universiti Kebangsaan Malaysia 43600 SelangorMalaysia

Objective:To measure the productivity of water on the floodplain land in terms of fisheries and living aquatic resources based on two floodplain beels in ***:Among two beels,beel Mail is practicing community based fish culture management,and beel Chandpur is open access and improperly *** production and market price data of fish,snail,and aquatic plants were collected by direct observation based on 30 samples fishers in the year *** study also collected production related water quality data,such as water temperature,pH and dissolved ***:The water quality data are found within the normal *** aggregated water productivity values based on production costs were TK 8016.23 ha^(-1)and TK 3912.9 ha^(-1)and based on all cost TK 7160.97 ha^(-1)and TK 3741.13 ha^(-1)at beel Mail and beel Chandpur,*** contribution of fish,snails and aquatic resources were 96.50%,3.10%,and 0.40%of the gross aggregated water produced in beel Mail and 87.85%,8.38%,and 3.77%in the beel *** water productivity values in beel Mail are higher than in beel Chandpur due to the intervention of community based fish ***:The proper management and techniques of harvesting fish through appropriate number of fish fingerlings stocked,good quality of fish fingerlings,size of beel,good fencing and well defined embankment,*** help to improve the productivity of water in the beel areas.

关键词： Bangladesh Community based-management Floodplain Water productivity

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LOCAL SCOUR AROUND BRIDGE ABUTMENTS

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International Journal of Sediment Research 2002年第1期17卷 48-74页

作者： Er. Shri Ram CHAURASIA1 and Pande B.B. LAL2 1 Assistant Professor, Civil Engineering Department, madan mohan Malaviya Engineering College, Gorakhpur-273 010 (U.P.) India, 2 Dr., Principal, Mada Assistant Professor Civil Engineering Department Madan Mohan Malaviya Engineering CollegeGorakhpur-273010 (U.P.) India Dr. Principal Madan Mohan Malaviya Engineering College Gorakhpur-273010(U.P.) India

This paper summarizes the design equations for local scour depth around bridge abutments as proposed by different investigators, and also the different factors, affecting the scour depth. Methods for the estimation of local scour depth based on dimensional analysis are also presented. The design methods based on empirical relations such as flow depth, flow intensity, sediment characteristics, abutments shape and size, alignment, and approach channel geometry are also discussed. Since clear-water scour is the maximum scour depth, the equation for clear-water scour is recommended for the computation of local scour depth around bridge abutments for uniformly and non- uniformly graded sediments.

关键词： Local scour Bridge abutments Flood plain Scour depth

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