Non-Convex Economic Dispatch with Prohibited Operating Zones through Gravitational Search Algorithm

This paper presents a new approach to the solution of optimal power generation for economic load dispatch (ELD) using gravitational search algorithm (GSA) when all the generators include valve point effects and some/all of the generators have prohibited operating zones. In this paper a gravitational search algorithm is suggested that deals with equality and inequality constraints in ELD problems. A constraint treatment mechanism is also discussed to accelerate the optimization process. To verify the robustness and superiority of the proposed GSA based approach, a practical sized 40-generators case with valve point effects and prohibited operating zones is considered. The simulation results reveal that the proposed GSA approach ensures convergence within an acceptable execution time and provides highly optimal solution as compared to the results obtained from well established heuristic optimization approaches

Consultancy report on market research for Ammonia, Hydrogen sulphide, Nitrite and vibrio reducing products in Andhra Pradesh aquaculture market

Fisheries and Aquaculture have been recognized as a powerful income and employment generator as it stimulates the growth of a number of subsidiary industries. It is an instrument for the livelihood for a large section of economically backward population of the country. Aquaculture is one of the fastest growing food sectors in the world with a impressive growth rate of over eight per cent annually. Over the past three decades, there has been a rapid progress in aquaculture development all over the world, particularly in Asian countries. The major changes that are noticeable indicate the transformation from a small scale homestead level activity to a large scale commercial aqua farming

A User Programmable Electro-optic Device for Testing Laser Seekers

Laser-guided munitions are weapons of great importance in the present day warfare scenario because of their precision and efficacy. Both weapon specific and generic test systems are commercially available to perform functionality checks on laser guided munitions. None of the designs reported in literature addresses the issues of universality of test systems and their ability to evaluate the device-under-test in actual battlefield scenario. This paper presents the design of an electro-optic device that offers significant improvement over the features of both commercial test systems as well as the designs reported in recent literature. The proposed design enables generation of user programmable laser signatures in terms of pulse repetition frequency (PRF) code, PRF code resolution and laser power density that allows testing in dynamic conditions not possible with the test systems in the state-of-the-art. The concept is hardware implemented and used to evaluate performance of a typical laser seeker. The seeker is tested for PRF code compatibility, immunity to false PRF codes, sensitivity, field-of-view and performance in dynamic conditions. The test results are also presented.Defence Science Journal, Vol. 64, No. 1, January 2014, DOI:10.14429/dsj.64.485

Comment on "Canonical transcorrelated theory with projected Slater-type geminals" [J. Chem. Phys. 136, 084107 (2012)]

This Comment identifies errors in the formalism/implementation reported in Ref. 1 and discusses some aspects of that work that were not fully specified in the original publication. This Comment also provides reference numerical results for a simple system to ease future implementation of the approach by other researchers.Comment: 3 page

Outcome of three dimensional osteotomy for cubitus varus deformity

Background: Cubitus varus is the most common angular deformity resulting from supracondylar fracture of the humerus in children and adults. There are several options for correcting this deformity, but three dimensional osteotomy is now a popular method for the operative treatment of cubitus varus deformity. Objective of current study was to evaluate clinical and radiological outcome of three dimensional corrective osteotmy for cubitus varus deformity.Methods: This prospective interventional study was conducted in the department of orthopaedic surgery, BSMMU, Shahbag, Dhaka from January 2016 to September 2020. Within this period, total 40 cases of cubitus varus deformity, age ranging from 8-20 years that has the inclusion criteria was enrolled as a study sample with proper consent. All the data were analyzed statistically by using SPSS-22.Results: The results of present study showed significantly improved carrying angle, range of motion, internal rotation angle at the time of final follow-up period of six months or more. The outcome of the subjects was graded as excellent in 16 (40%), good in 18 (45%), fair in 4 (10%) and poor in 2 (5%) patients. Excellent, good and fair results were considered as satisfactory outcome and only poor result was considered as unsatisfactory outcome.Conclusions: After analyzing the results of present study it can be concluded that three dimensional osteotomy is a safe technique with satisfactory outcome in treatment of cubitus varus deformity

Congenital epidermoid cyst of penis with hypospadias: A case report

The epidermoid cysts are the most common cutaneous cysts and may develop from any parts of the human body. Primary epidermoid cyst with hypospadias in the penis is very rare. Here, we present the case of a slow growing, mobilized; non-tender frenulum of the penis mass in a 44-year-old male patient. Complete excision of the cyst was performed under spinal anesthesia. Histopathological examination confirmed the mass to be an epidermoid cyst. Care must be given during examination to rule out another entity. If thereis any indication, complete excision and hypospadias repair is the best treatment

Influence of industrial by-products on the behavior of geopolymer concrete forsustainable development

Carbon dioxide emission in cement industries is a great concern for environment, which is increasing day by day.Therefore, it is very essential to find a possible material that can be used as a replacement of cement. Geopolymer concreteis a kind of inorganic concrete elucidating the formal usage of industrial and natural waste in either single or combinedform. Geopolymers are amorphous covalently bonded by a 3D network of inorganic molecules of aluminosilicate material.The formation of geopolymer concrete is greatly influenced by several factors such as binder chemical reaction, curingtemperature/period, molarity of the solution, and rate of polymerization. The curing temperature helps in deciding theproperties of geopolymer. Performance variables for geopolymer concrete such as selection of alkaline binder withpozzolana (Fly ash, slag, silica fume etc.) and interrelationship of GPC, reinforcing agent in geopolymer concrete withcomponents responsible for durability are summarized in detail. The durability of concrete is reviewed with structure withshrinkage-resistant, resistant to sulfate attack, and consequences of carbonation. The various consequences of corrosion arealso summarized in last of present review paper. Different research findings in this paper proves successfully thatgeopolymer is better construction material as compare to cement-based concrete

Influence of industrial by-products on the behavior of geopolymer concrete for sustainable development

433-445Carbon dioxideemission in cement industries is a great concern for environment, which is increasing day by day. Therefore, it is very essential to find a possible material that can be used as a replacement of cement. Geopolymer concrete is a kind of inorganic concrete elucidating the formal usage of industrial and natural waste in either single or combined form. Geopolymers are amorphous covalently bonded by a 3D network of inorganic molecules of aluminosilicate material. The formation of geopolymer concrete is greatly influenced by several factors such as binder chemical reaction, curing temperature/period, molarity of the solution, and rate of polymerization. The curing temperature helps in deciding the properties of geopolymer. Performance variables for geopolymer concrete such as selection of alkaline binder with pozzolana (Fly ash, slag, silica fume etc.) and interrelationship of GPC, reinforcing agent in geopolymer concrete with components responsible for durability are summarized in detail. The durability of concrete is reviewed with structure with shrinkage-resistant, resistant to sulfate attack, and consequences of carbonation. The various consequences of corrosion are also summarized in last of present review paper. Different research findings in this paper proves successfully that geopolymer is better construction material as compare to cement-based concrete

Putting digital technologies at the forefront of Industry 5.0 for the implementation of a circular economy in manufacturing industries

Together with a human-centered approach to designing and operating production and logistics in an industrial context, digital technologies can lead to a sustainable, resilient, and human-centric Industry 5.0 (I5.0). This article is one of the first interdisciplinary studies integrating digital technologies and circular economy (CE) concepts in I5.0. Using expert-based surveys of industry leaders and analytical hierarchical process techniques, the article advances CE and technology management by empirically investigating the influence of I5.0 on CE aspects in manufacturing. The novel results presented here can enable policymakers and industry leaders to design effective CE strategies