A Review of Elastic Search: Performance Metrics and challenges

The most important aspect of a search engine is the search. Elastic search is a highly scalable search engine that stores data in a structure, optimized for language based searches. When it comes to using Elastic search, there are lots of metrics engendered. By using Elastic search to index millions of code repositories as well as indexing critical event data, you can satisfy the search needs of millions of users while instantaneously providing strategic operational visions that help you iteratively improve customer service. In this paper we are going to study about Elastic searchperformance metrics to watch, important Elastic search challenges, and how to deal with them. This should be helpful to anyone new to Elastic search, and also to experienced users who want a quick start into performance monitoring of Elastic search

Space Vector PWM Based Power Quality Compensation of Multi-Functional Grid-Tied Inverters and Its Application in Micro-Grids

In this paper we have multi functional converters to inter connect the both the dc and ac grids to handle power quality issues of the micro-grids. Multifunctional inverters can not only interface the renewable energy resource into the utility grid, but also can compensate the harmonic and reactive current in the micro-grid as an auxiliary service. Therefore, to enhance the power quality of the micro-grid by optimal utilization of the limited and valuable capacity becomes a technical challenge. In this paper, two optimal control objectives of MFGTIs are presented based on a comprehensive power quality evaluation algorithm by means of Analytic Hierarchy Process (AHP) theory. The two proposed strategies are analyzed about the powers and voltage and currents as results, and the paper also discusses how to use them in practice for the best performance. Simulation of proposed svpwm verifies the feasibility of the proposed optimal control strategies

Design of ROVAC Air-Conditioning System for a Car

This study investigates the air compression air conditioning system which utilizes a rotary vane compressor that replaces the conventional mechanical compressor in automotives. The awareness for pollution, transportation contributing the major part has lead to measures taken by the Nation, demanding reduction of global warming refrigerants used in mobile air conditioning systems. Much of effort was to refurbish the system to safe operating condition and to evaluate its performance. The result of this study provides the basis for design of improved refrigeration systems for automotives and space conditioning applications.The queer system which is based on the works of Dr. Thomas C. Edwards, has been developed in which an oval shaped housing acts as a compressor and natural substance like air as refrigerant which offers a number of environmental and practical advantages.

Extractive Visible Spectrophotometric Determination of Lamotrigine in Pure and Pharmaceutical Formulations

Abstract: Two simple, sensitive, accurate and economical spectrophotometric methods (A & B) for the determination of lamotrigine (LMT) in pure and pharmaceutical formulations (tablets) are described in the present work. Method A is based on the formation of coloured ion-association complex between lamotrigine and tropaeolineo-oo (TPooo) with absorption maximum at 485 nm and obeys Beer's law in the concentration range of 5-25 µg/mL. Formation of ion-association complex between lamotrigine and alizarine Red S (ARS) to yield a coloured chromogen exhibiting absorption maximum at 440 nm (Method B) obeying Beer's law in the concentration range of 5-25 µg/mL forms the basis of Method B. The two methods have been validated statistically through recovery studies. The results are compared with those obtained using UV spectrophotometric method (Reference method) in chloroform at 260 nm

Advances in Glioblastoma Therapy: An Update on Current Approaches

Glioblastoma multiforme (GBM) is a primary malignant brain tumor characterized by a high grade of malignancy and an extremely unfavorable prognosis. The current efficacy of established treatments for GBM is insufficient, necessitating the prompt development of novel therapeutic approaches. The progress made in the fundamental scientific understanding of GBM is swiftly translated into more advanced stages of therapeutic studies. Despite extensive efforts to identify new therapeutic approaches, GBM exhibits a high mortality rate. The current efficacy of treatments for GBM patients is insufficient due to factors such as tumor heterogeneity, the blood–brain barrier, glioma stem cells, drug efflux pumps, and DNA damage repair mechanisms. Considering this, pharmacological cocktail therapy has demonstrated a growing efficacy in addressing these challenges. Towards this, various forms of immunotherapy, including the immune checkpoint blockade, chimeric antigen receptor T (CAR T) cell therapy, oncolytic virotherapy, and vaccine therapy have emerged as potential strategies for enhancing the prognosis of GBM. Current investigations are focused on exploring combination therapies to mitigate undesirable side effects and enhance immune responses against tumors. Furthermore, clinical trials are underway to evaluate the efficacy of several strategies to circumvent the blood–brain barrier (BBB) to achieve targeted delivery in patients suffering from recurrent GBM. In this review, we have described the biological and molecular targets for GBM therapy, pharmacologic therapy status, prominent resistance mechanisms, and new treatment approaches. We also discuss these promising therapeutic approaches to assess prospective innovative therapeutic agents and evaluated the present state of preclinical and clinical studies in GBM treatment. Overall, this review attempts to provide comprehensive information on the current status of GBM therapy

Lora Technology for Flood Monitoring and Warn System

Flooding is the most frequent natural disaster that has an impact on humans. There is a history of widespread damage from floods. The organizations and competent authorities use a variety of sophisticated techniques to track the flood level in areas with a high risk of flooding. The majority of these devices are quite expensive to use and maintain. In the proposed system, data from sensors including those measuring water level, water flow, and ultrasonic sensor can be sent to the cloud using a GSM device. If environmental condition threshold values rise, a warning message will be sent to the relevant authorities, who will then inform the residents of the flood-prone area. With the aid of such a system, both commercial and public organizations can develop their flood mitigation strategies before the situation worsens. The most widely used mobile messaging platform, the Global System for Mobile Communication (GSM), is used to send the SMS to the villages as a warning simultaneously a buzzer will ring which is placed in every village of the flood-prone area. This buzzer will work with the technology of LoRa transceiver, which had a long range of communication

Performance analysis of ZVS and ZCS boost converters for Solar Photo Voltaic Applications

This paper describes a useful modulated, asymmetric full-bridge converter for sustainable solar PV applications. The suggested converter achieves zero-voltage switching (ZVS) on the main side’s power switches and reduces circulating current loss by utilizing a full-bridge architecture and an asymmetric control method. The blocking capacitor and the leakage inductance of the transformer operate in resonance to further provide the Zero Current Switching (ZCS) off for the output diode without the need for any further circuitry. Output diode reverse recovery is no longer a concern as a result. Additional connections to the input voltage include the power switch voltage stresses. Because of these features, the suggested converter has the infrastructure to reduce power losses. The buildings of renewable energy sources can benefit especially from it

Optimized Inverter Circuits for Driving Dual AC Loads for Home Solar Water Pumping

This research presents a generic pulse width modulation (PWM) approach for nine switch inverters and five-leg inverters. The circuit design of both inverters and a modulation mechanism for separate drives have been described. The available DC bus voltage supplied the two induction motors using a PWM technique for a 5-leg inverter. Nine-switch inverters and nine-switch z-source inverters have lately been presented as dual-output inverter. A nine-switch z-source inverter and a unique pulse width modulation (PWM) were created. Also, a five-leg inverter is modelled using Extended Two Arm Modulation (ETAM) scheme. The suggested modulation techniques were applied to control two machine drive systems with a single inverter architecture with a reduced switch count for pumping the water to house hold appliances. The comparative analysis of the two dual-output inverters is integral to this work

Investigation of Wear Characteristics on Gas Nitrided AISI 304 Stainless Steel under Dry Sliding Conditions

Stainless steel is a popular material used in various industries due to its excellent corrosion resistance, high strength, and durability. Gas nitriding has been found significantly to improve wear resistance. Chosen for this research work AISI 304 were examined and the impact of gas nitriding to 12 hrs, 24 hrs and 36 hrs were analyzed for better wear behavior. To evaluate the tribological behavior, wear tests were carried out using pin on disc tribometer. The samples were undergone with hardness tests and the microstructures were examined through scanning electron microscope The difference between the compound layer and the diffusion layer were analyzed on the microstructure. The results of untreated samples and nitride samples were compared