Two-Warehouse Partial Backlogging Inventory Model For Deteriorating Items With Ramp Type Demand

This paper deals with two warehouse system for deteriorating items with ramp type demand. In this inventory model initially demand is considered to be linear function of time and it became constant after a finite time parameter. Holding cost assume to be constant in both warehouse. Partial backlogging is allowed. The proposed model is developing to minimize the total inventory cost which includes holding cost, backlogging cost, lost sale cost, and deterioration cost. Here three cases are taken into consideration depending on time where demand becomes constant. This is only an analytic approach towards the model. Keywords: - Two warehouse inventory, ramp type demand, holding cost, deteriorating item

Comparative study of intravenous hydralazine and labetalol in severe hypertensive disorders of pregnancy

Background: Hypertensive disorders of pregnancy are among the most common medical complications of pregnancy and major cause of maternal, fetal and neonatal morbidity and mortality. The purpose of this study was to compare the efficacy and safety of intravenous hydralazine and labetalol for management of severe hypertensive disorders of pregnancy.Methods: This prospective study was conducted among 100 women admitted with SBP ≥ 160 or DBP ≥ 110 mmHg or both. Patients were divided into 2 groups randomly: labetalol and hydralazine group.Results: Majority of patients (38%) were in the age group of 21-25 years and primigravida (52%). There was more significant decrease in the systolic, diastolic and mean arterial blood pressure at the end of 15 and 30 minutes in labetalol group. Labetalol required fewer doses as compared to hydralazine to achieve the target blood pressure (average 1.95 versus 3.1). Total numbers of term deliveries were 19 (38%) in hydralazine group and 16 (32%) in labetalol group. Pre-term deliveries in hydralazine and labetalol group were 14 (28%) and 15 (30%) respectively. Headache was significantly more common in hydralazine treated patients than labetalol group.Conclusions: Both hydralazine and labetalol were effective and well-tolerated in the treatment of severe hypertensive disorders of pregnancy. Labetalol may be preferred because it was more effective in lowering the systolic blood pressure, diastolic blood pressure and mean arterial pressure to achieve target levels with less number of doses

Multivariate statistical analysis and geospatial approach for evaluating hydro‑geochemical characteristics of meltwater from Shaune Garang glacier, Himachal Pradesh, India

Acknowledgements The present support of the Department of Science and Technology as a research project (DST/CCP/NHC/159/2018(G)) became instrumental in utilizing the human resources for the analysis of the results. The financial support of the USAID project (CHARIS) for carrying out fieldwork is thankfully acknowledged. The analysis is made at the DST supported FIST Lab in the Department of Environmental Science, Central University of Rajasthan. The support is thankfully acknowledged. We would like to thank reviewers for taking the time and effort necessary to review the manuscript. We sincerely appreciate all valuable comments and suggestions which helped us to improve the quality of the manuscript.Peer reviewedPostprin

Design Optimization of Waveguide Applicator for Microwave Hyperthermia Cancer Treatment

Abstract: The optimized design and simulation of a waveguide applicator has been presented here for superficial microwave hyperthermia using COMSOL Multiphysics 3.5a. Non-Invasive or external hyperthermia is used to treat tumors that are in or just below the skin (superficial). Non-invasive hyperthermia systems using waveguide applicators are less traumatic to patients which also minimize the risk of mixing abnormal cells with healthy tissues. The dimensions of the waveguide can be optimally selected to focus the energy more specifically over the tumor region. The 3D modeling of the waveguide applicator is performed and the performance is verified by analyzing the resistive heating and temperature distributions in muscle like phantom

Accurate Investigation of Coaxial-Slot Antenna for Invasive Microwave Hyperthermia Therapy

Invasive microwave hyperthermia is a technique applied for treatment of cancer in which body tissue is exposed to high temperatures. The effectiveness of hyperthermia depends upon the temperature achieved during the therapy and the distribution of microwave thermal field; which further depends upon the type of microwave radiative antenna. Microwave ablation (MWA) or high temperature hyperthermia is a minimally invasive technique used to treat liver cancer, the effectiveness of which depends on highly localized spherical shaped leison with minimum back radiations near the tumor cells

Root growth, crop productivity, nutrient uptake and economics of dwarf pea (Pisum sativum) as influenced by integrated nutrient management

A field experiment was conducted during the two consecutive rabi seasons of 2007-08 and 2008-09 at Varanasi on sandy loam soil to study the effect of organic, inorganic and biofertilizers on dwarf pea (Pisum sativum L.). The experiment was conducted in a split-plot design and replicated thrice. All the fertility levels, viz. chemical fertilizers, vermicompost and control were allotted to main plot and combinations of biofertilizers (Rizobium+Bacillus polymixa +Pseudomonas fluorescence) and Zn along with control were subjected to sub-plot. Results showed superimposition of 50% Norganic (recommended dose of N through vermicompost) to 100% NPK (recommended dose of NPK through chemical fertilizers) resulted in significant improvement of dry matter/plant, yield (grain and straw, harvest index), root growth (root dry weight, root N content and cation exchange capacity of root) and nutrient uptake (NPKS and Zn). However nodulation (root nodules/plant, dry weight of nodules/plant and nitrogenase activity at 30 and 60 DAS) was lesser with this fertility level but significantly higher than 100% NPK and control (no application).Gross and net returns (` 45 358 and 31 223/ha) were noted higher with 100% NPK + 50% Norganic fertility level. Benefit: cost ratio (2.21) was also recorded higher with 100% NPK + 50% Norganic level. The integrated application of biofertilizers and Zn was recorded significantly better than control as this treatment lucidly improved dry matter, yield, harvest index, root growth, nodulation and nutrient uptake. Benefit: cost ratio was also higher with combined application of PSB and Zn. Furthermore, integration of 100% NPK + 50% Norganic and biofertilizers + Zn was conducive for getting significantly optimum yield (1873 kg/ha)

The use of computational geometry techniques to resolve the issues of coverage and connectivity in wireless sensor networks

Wireless Sensor Networks (WSNs) enhance the ability to sense and control the physical environment in various applications. The functionality of WSNs depends on various aspects like the localization of nodes, the strategies of node deployment, and a lifetime of nodes and routing techniques, etc. Coverage is an essential part of WSNs wherein the targeted area is covered by at least one node. Computational Geometry (CG) -based techniques significantly improve the coverage and connectivity of WSNs. This paper is a step towards employing some of the popular techniques in WSNs in a productive manner. Furthermore, this paper attempts to survey the existing research conducted using Computational Geometry-based methods in WSNs. In order to address coverage and connectivity issues in WSNs, the use of the Voronoi Diagram, Delaunay Triangulation, Voronoi Tessellation, and the Convex Hull have played a prominent role. Finally, the paper concludes by discussing various research challenges and proposed solutions using Computational Geometry-based techniques.Web of Science2218art. no. 700

Estimation of groundwater recharge in semiarid regions under variable land use and rainfall conditions: a case study of Rajasthan, India

In the semiarid regions of India, the annual rainfall is very low (~650 mm) and erratic; hence groundwater recharge is vital to support crops, especially in the winter season. For groundwater budgeting it is essential to consider how groundwater recharge is affected by both land-use and rainfall distribution. This study used a soil water balance approach, considering hydrological, meteorological, hydrogeological and crop information to understand the recharge process in semiarid regions. The approach was used at a sub-watershed scale where farmers grow rainfed and irrigated crops. Delayed recharge response on the water table was considered to estimate actual recharge, which closely matches the observed water levels in the field. The recharge estimated in rainfed agricultural lands, rainfed-irrigated agricultural lands, and barren lands was 29%, 17%, and 31% of the total inflow.Natural Environment Research Council (NERC): NE/R003351/

ERROR CONVERGENCE ANALYSIS FOR LOCAL HYPERTHERMIA APPLICATIONS

The accuracy of numerical solution for electromagnetic problem is greatly influenced by the convergence of the solution obtained. In order to quantify the correctness of the numerical solution the errors produced on solving the partial differential equations are required to be analyzed. Mesh quality is another parameter that affects convergence. The various quality metrics are dependent on the type of solver used for numerical simulation. The paper focuses on comparing the performance of iterative solvers used in COMSOL Multiphysics software. The modeling of coaxial coupled waveguide applicator operating at 485MHz has been done for local hyperthermia applications using adaptive finite element method. 3D heat distribution within the muscle phantom depicting spherical leison and localized heating pattern confirms the proper selection of the solver. The convergence plots are obtained during simulation of the problem using GMRES (generalized minimal residual) and geometric multigrid linear iterative solvers. The best error convergence is achieved by using nonlinearity multigrid solver and further introducing adaptivity in nonlinear solver

Green synthesized plasmonic nanostructure decorated TiO2 nanofibers for photoelectrochemical hydrogen production

We herein present the Au and Ag NPs synthesized via chemical reduction with green synthesized carbon nano lights (CNL) as a visible light photosensitizer for TiO2 nanofibers (TNFs) towards photoelectrochemical water splitting. The synthesized photoanodes (PA1: TNFs, PA2: Ag@CNLs/TNFs and PA3: Au@CNLs/TNFs) were probed ex-situ for morphological, structural, optical and electronic properties before being used for the PEC experiments. We first show the efficient photocatalytic activity of these photoanodes for the degradation of methylene blue under visible light irradiation. Followed by the photoelectrochemical (PEC) water splitting investigation, which reveals the substantially improved photocurrent density to 13 mA/cm2 and 18 mA/cm2, for PA2 and PA3, respectively under simulated AM 1.5 solar illumination at 1.36 V vs RHE, ~15 fold enhancement compared to that obtained for a PA1. This improvement we attributed to the synergic consequence, improved absorption and effective charge carrier separation & transport due to surface plasmonic effect, which is well evident in the decrease of measured charge transfer resistance (Rct), for PA2 (15.1 Ω) and PA3 (6.71 Ω), as compared to PA1 (139 Ω)