A Brief Study on Reconfigurable Plasma Antennas

This paper study the reconfigurable characteristics of monopole plasma antennas. Plasma antennas use partially or fully ionized gas instead of metal as the conducting medium to create an antenna. The advantages of plasma antennas are that they are highly reconfigurable and can be turned on and off. The radiated wave profile can be calculated by several numerical methods. The disadvantage is that plasma antennas require energy to be ionized. This paper presents a basic study on plasma monopole antenna using a single fluorescent tube antenna The reconfigurable characteristic of the monopole plasma antenna and its array are analyzed through the simulations. The reconfigurable results of the working frequency and the radiation pattern of the monopole plasma antenna are obtained, the reconfigurable characteristic of the four-element and six-element of the plasma antenna array are analyze

Seismic Reaction Of Rc Structure Buildings By Soft Primary Storey

Recently, a large number of structures with excellent history have been made in India. However, they are showing poor execution in the middle of the earthquake. Thus, we need time to take measures to preserve the unintended use of the first micro-stories in structures, which are formed without taking into account the extended clearance and energy demands of the initial floor segments. The key point of this endeavour is to investigate the reaction of the RC diagram working with the sensitive first floor under seismic tremor activity using the variable brickwork thickness. Characteristic patterns of a split-thickness checkered thin-floor work were considered, including unexposed edge patterns and capitalized patterns on X and Z bearings, and a total of 9 patterns were built. Swaggers are offered to consider the effect of the stiffness of filler joints in an RC frame. The calculation of the comparative width of swaggers coincides with the equation of Paulay and Priestley. The earthquake is accounted for in the positive X and Z titles, and the boast is displayed parallel to the course of the seismic shock. The after effects of base shear, displacement, axial force, bending moment-Y, bending moment-Z, and floor motion, shaft forcing, Y-torsional precision, and bending precision in Z were analyzed using STAAD programming. Characteristic stacking conditions were considered to determine the superpowers of different parameters

Olanzapine-induced black hairy tongue: a rare case

Olanzapine is second generation antipsychotic drug. It alters affinities for serotonin and dopamine receptors and provides mild sedating and calming effect. It is indicated for the treatment of schizophrenia, acute mania and the prevention of relapse in bipolar disorder. We present a case report of a 65- year- old man with bipolar disorder I, who developed black hairy tongue following treatment with olanzapine and completely recovered after withdrawal of treatment. Awareness about this particular adverse drug reaction will ensure proper management and avoid unnecessary investigations

Terminalia catappa L. (Tropical Almond Tree) Leaf Extract: A Natural Way to Improve Tilapia Nutrition

This study investigated the potential benefits of using Terminalia catappa leaf extract (TLE) as a natural feed additive in tilapia (Oreochromis niloticus) culture, exploring its effects on the fish. A 40-day feeding trial demonstrated that TLE-2% supplementation in the tilapia diet significantly enhanced growth performance and feed utilization efficiency. Phytochemical screening of aqueous, ethanol, and ethyl acetate leaf extracts revealed various secondary metabolites. GC-MS analysis of the ethanol extract identified bioactive compounds, including neophytadiene and squalene, which exhibited antimicrobial properties. The antibacterial activity of TLE was evaluated using the disc diffusion method, showing maximum zones of inhibition against Vibrio cholerae (18±1.5 mm). Analysis of digestive enzymes from the fish gut revealed increased activities of protease, amylase, and lipase, indicating improved digestive capacity. The results suggest that T. catappa leaf extract can be an effective natural feed additive to promote growth performance and digestive enzyme activity in tilapia. The findings in this study indicate that the TLE diet has a dual property of growth promoter and immunostimulant and can be a sustainable and cost-effective alternative to traditional aquaculture practices

Green synthesis of silver nanoparticles using Indigofera cordifolia leaf extract and their pharmacological potential

Biologically the silver nanoparticles were synthesized from Indigofera cordifolia leaves extract. The absorbance of the silver nanoparticles centered at four hundred and twenty nm, with respect to the surface plasmon resonance of silver nanoparticles wavelength. XRD method proves, biosynthesized NPs would retain the face centered cubic (fcc) structure. In TEM image analysis, silver NPs morphology was spherical in shape. The composition of the silver nanoparticles was obtained by EDAX analysis method. FTIR analysis concluded that biosynthesis Ag NPs was observed at 1384 cm-1, with respect to –NO3 stretching arises from AgNO3. Ten types of bands are present in the broad emission because of organic matrix bound to silver nanoparticles, which reveals as the result of photoluminescence measurements. The silver NPs possess more antibacterial activity as compared to the standard drug, Amoxicillin

Multi-input Fuzzy Logic Controller for Brushless dc Motor Drives

The brushless dc motors are used in various applications such as defence, industries,robotics, etc. In these applications, the motor should be precisely controlled to give the desiredperformance. The proposed controller systems consist of multi-input fuzzy (two-and three-input)logic controller (FLC) and multi-input integrated fuzzy logic controller (IFLC) for the speed controlof brushless dc servomotor drive. The input for the controllers are error e(k), change in error[first derivative of error ce(k)] and change of change in error [second derivative of error cce(k)]with a single-output. The error cce(k) is substantial at the overshoots/undershoots and is thereforeessential for accurate speed control of brushless dc motor. The error cce(k) has been introducedfor the first time in the literature as one of the input in the FLC and IFLC design. The IFLC isdesigned using FLC and proportional derivation integral (PID) controllers. The controller systemshave been studied systematically for the transient and steady-state conditions. The three-inputIFLC is found to be superior, more robust, faster, flexible, and is insensitive to the parametervariations as compared with the FLC (with two-and three-input) and conventional two-inputIFL

A New Array Search On Encrypted Spatial Records

Accessible encryption is a procedure to perform significant questions on encoded information without uncovering protection. Be that as it may, geometric range look on spatial information has not been completely examined nor bolstered by existing accessible encryption plans. In this we plan a symmetric-key accessible encryption conspire that can bolster geometric range inquiries on encoded spatial information. One of our real commitments is that our outline is a general approach, which can bolster diverse sorts of geometric range questions. At the end of the day, our outline on encrypted information is free from the states of geometric range questions. In addition, we additionally expand our plan with the extra utilization of tree structures to accomplish look multifaceted nature that is speedier than linear

Prevalence of Depression among Infertile Couples Attending a Tertiary-Care Infertility Clinic

BACKGROUND: A large number of people are affected by infertility in their life time indicating that this is a major health challenge globally. Infertility is currently being thought-about as a medical and social condition which can cause social, emotional and psychological distress. It is estimated that psychological factors have an important role in the pathogenesis of infertility.  Although depression has been described as a common consequence of infertility, very little has been documented related to its prevalence and severity, especially in India. This might be because those who fall outside the normal range of depression inventories are poorly reported or because of the fact that the psychological impact of infertility differs from that due to other medical conditions. Addressing the psychological issues during infertility treatment is now considered important. This is because of the increasing awareness that depression could be the cause of infertility, its consequence, or both and may interfere success of infertility treatment and the ability to tolerate on-going treatment. Treatments for infertility have effects on estrogen and progesterone levels. These hormones influence mood of the woman through their actions on serotonin. On the other hand emotional distress itself can suppress ovarian function or implantation resulting in decreased fertility and reduced response to its treatment. This interaction creates a vicious circle between depression and infertile status and can result in treatment dropouts or treatment failure.  This study aimed to assess the prevalence of depression among infertile couples attending a tertiary care infertility clinic. METHODS: A Hospital based cross sectional study was conducted and a calculated sample of 126 couples with infertility attending the infertility clinic were consecutively enrolled into the study after obtaining consent. Data was collected using an interviewer-administered semi-structured questionnaire and depression was assessed using PHQ9 depression tool. A couple was considered to have depression if at least one of the partners had depression.  Data was analysed using SPSS version 16. Quantitative variables were expressed as mean and standard deviation and qualitative variables as proportions. Chi-square test of independence and Fisher's Exact Test were used to test the association between categorical variables. RESULTS: The prevalence of depression among infertile couples was 51.6 %( n=65). Depression was more prevalent in females (48.4% n=61) than in males (33.3% n=42) and when the reason for infertility was female-related. There was a significant risk of development of depression when the other partner had depression (p=0.001, Odds ratio=25.196). CONCLUSION: Females are often blamed for childlessness especially in rural India resulting in an increased prevalence of depression among infertile females. Efforts should be taken to educate people about infertility so that there is less pressure on infertile couples.  Counseling methods, especially supportive psychotherapy and interventions to decrease and prevent the development of severe depression among these patients should be considered

High-Gain Low-Noise Pre-Amplifier and Narrow Band-Pass Filter for Photoacoustic Spectrometer

ABSTRACT: In this paper an attempt is made to design and develop a high-gain low-noise pre-amplifier and a narrow band-pass filter for photoacoustic spectrometer (PAS). A two-stage pre-amplifier with the gain of 1000 and a second order state variable narrow band-pass filter are designed and fabricated. The pre-amplifier and narrow band-pass filter circuits are designed with a low-noise op-amp (LM308). This arrangement improves the sensitivity and signal-to-noise ratio of the photoacoustic (PA) signal. The frequency response of the PA cell is studied with carbon-black and liquid crystal samples. The resonant frequency of the PA cell was found at 345Hz. The performance of the system is tested in both the presence and absence of modulated laser beam applied on the sample, and it is found that the signal quality has been improved with the pre-amplifier and narrow band-pass filter designed for the present study