Transportation problem (TP) in operations research is a widely used optimization technique to study the problems concerned with transporting goods from production places to sale points. The TP may have one or more objectives such as minimization of transportation cost, minimization of distance with respect to time, and so on. There is a systematic method to solve such problems. For this, we find the Initial Basic Feasible Solution (IBFS) to the given problem. North West corner method, least cost method, Vogel’s approximation method are the standard methods one uses to find the IBFS. In recent years, there are several other methods are proposed to solve such problems. In this paper, we propose a new technique named as Direct Sum Method (DSM) and its effectiveness is compared with the standard methods. The result shows that it is easy to compute and near to the optimum solution of the problem.
Democracy has made voting incredibly important in any nation due to a general scepticism of the traditional voting process. Individuals have witnessed violations of their fundamental rights. Lack of transparency has led to challenges to other digital voting systems. The majority of voting methods are not sufficiently transparent, which makes it highly challenging for the government to win over voters' trust. The previous and present digital voting systems have failed because they are vulnerable to abuse. The main goal is to fix issues with the traditional and electronic voting systems, including any form of error or unfairness that may occur when voting. To ensure a fair election and lessen unfairness, blockchain technology can be included into the voting process. The computerised voting methods are not flawless enough to be used on a broad scale, and the physical voting systems have numerous problems as well. This evaluates the requirement for a remedy to safeguard citizens' democratic rights. In order to establish a trustworthy working connection between voters and election officials, this article introduces a platform based on cutting-edge blockchain technology. Without using any actual polling places, the proposed technology offers a framework that may be used to conduct voting activity digitally through blockchain. Our suggested design uses adaptable consensus algorithms to support a scalable blockchain. Blockchains with pre-established validation procedures were developed for a specific voting storage.Voter verification will be provided by IRIS Recognition. All systems in a value chain save blocks of time-stamped voting. Blockchain is a log of transactions where members of a community may track asset transfers. Using the SHA-256 technique, two blocks are connected to one another. It has also been elaborated on how to encrypt transactions using cryptographic hashes and guard against 51% attacks on the blockchain. Also, the method for conducting blockchain transactions during the voting process has been developed using Blockchain Lastly, the performance assessment of the suggested method demonstrates that it may be used to a sizable population
There is increasing concern with the prevalence of hospital infection. This is causing a significant economic and logistical burden on the health services. OBJECTIVES: To assess the efficacy of hydroxyl radical based air disinfection devices in reducing the atmospheric pathogen count in enclosed health care settings. MATERIALS AND METHODS: Sequential trial with repeated readings was designed before and after installation of the Air Disinfection devices. Study was conducted at 52 points in different locations which included sections from out Patient Department, Intensive Care Units, Operation Theatre, Surgical Ward, Radiology Department and cubicles in routine microbiology. The samples collected with air sampler were processed in Neuromicrobiology Laboratory. RESULT: It was observed that the mean (±SE) colony forming units (CFU/m 3) count after 24 and 48 hours before and after use of air disinfectant devices at the above locations were 159.75 (±35.42), 210.31 (±65.15) and 44.04 (±14.15), 55.31 (±15.06) respectively. The differences in the mean CFU concentrations were found to be statistically significant (p= 0.006). Additionally, a high degree of variance in the CFU counts was noted before using the devices as compared to that after using the same. CONCLUSION: The results indicate that there is considerable reduction in the number of colony forming units subsequent to the introduction of the Air Disinfection devices. These devices supplement and compliment the general hygienic practices. However owing to a lot of compounding factors affecting the colony forming units in a given location, sufficient care must be taken for ascribing the reduction in the counts only to the device.
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