A Generalized Control Method for Constant Switching Frequency Three Phase PWM Boost Rectifier Under Extreme Unbalanced Operation Condition

This thesis presents a generalized control method for constant switching frequency PWM Boost Type Rectifier under extremely unbalanced operating conditions in the power system. The proposed analytical method is verified by using MATLAB/ Simulink model developed under severe unbalanced conditions of input source voltages and input impedances. The closed loop control method for controlling the output DC voltage is also presented and verified by using MATLAB/Simulink model. An experimental model is built to prove the feasibility of the proposed constant switching frequency operation of the PWM Boost Type Rectifier under extreme unbalanced operation conditions by using DSPACE RT1104 digital control syste

A Generalized Control Method for Constant Switching Frequency Three Phase PWM Boost Rectifier Under Extreme Unbalanced Operation Condition

This thesis presents a generalized control method for constant switching frequency PWM Boost Type Rectifier under extremely unbalanced operating conditions in the power system. The proposed analytical method is verified by using MATLAB/ Simulink model developed under severe unbalanced conditions of input source voltages and input impedances. The closed loop control method for controlling the output DC voltage is also presented and verified by using MATLAB/Simulink model. An experimental model is built to prove the feasibility of the proposed constant switching frequency operation of the PWM Boost Type Rectifier under extreme unbalanced operation conditions by using DSPACE RT1104 digital control syste

A Generalized Control Method for Constant Switching Frequency Three Phase PWM Boost Rectifier Under Extreme Unbalanced Operation Condition

This thesis presents a generalized control method for constant switching frequency PWM Boost Type Rectifier under extremely unbalanced operating conditions in the power system. The proposed analytical method is verified by using MATLAB/ Simulink model developed under severe unbalanced conditions of input source voltages and input impedances. The closed loop control method for controlling the output DC voltage is also presented and verified by using MATLAB/Simulink model. An experimental model is built to prove the feasibility of the proposed constant switching frequency operation of the PWM Boost Type Rectifier under extreme unbalanced operation conditions by using DSPACE RT1104 digital control syste

Exploring the Potential Role of Herbal Ayurveda Formulation Vasadi Kashaya in Chronic Obstructive Pulmonary Disease - A Review

Chronic obstructive pulmonary disease (COPD) is a disease of respiratory system having chronic nature which is characterised by airway inflammation and airflow obstruction that is not fully reversible. It includes two clinical conditions, chronic bronchitis and emphysema which generally overlap in patients. It is a preventable and treatable disease that is caused by significant exposure to harmful gases or organic matter. The common clinical symptoms include dyspnoea, cough, sputum production, chest tightness. According to the global burden of disease study reports published in 2018, COPD is the second leading cause of death due to non-communicable diseases in India. COPD in Ayurveda is can be dealt in Ayurvedic clinical practice using treatment principles of Shwasa and Kasa. Vasadi Kashaya, a herbal Ayurveda medicine is commonly used in the treatment of respiratory disorders by Ayurveda practitioners. Aim: In this article, possible mode of action of Vasadi Kashaya in the treatment of COPD have been explored based on available Ayurvedic and scientific literature. Methodology: Information from Ayurveda text books and available full text articles on different medical online sources was collected using relevant keywords and are summarised in this article. Conclusion: Available scientific evidence supports the anti-inflammatory, bronchodilator, anti-allergic, anti-oxidant and immune-modulator properties of Vasadi Kashaya making it a potential herbal formulation for Ayurvedic management of COPD

AYURVEDIC REVIEW ON DIAGNOSIS AND MANAGEMENT OF HRIDROGA WITH THE SPECIAL REFERENCE TO CARDIOVASCULAR DISEASE

According to AcharyaSushruta, in the presence of the Etiological factors the dosha get vitiated and provoked all the three Doshas spread out of their place and vitiate the RasaDhatu in the heart. Vitiate Rasa Dhatu (body lymph /chyle) manifestation of various types of pain is being produced, which is called ‘Hridbadha’ or Hridroga. Cardiovascular disease (CVD) is the most important cause of global death, accounting for 17.3 million deaths per year, a number that is expected to grow to more than 23.6 million by 2030. Aim and objectives-Diagnosis and treatment of Hridroga through Ayurveda and its modern correlation.Mode ofAction of Hridyadrugs promoting heart’s health.Improper diet (excessive intake of Kshar, Lavana Rasa, Virudahbhojana) and Vegadharna, Chinta,Krodhaetc. are few among the many causes of Hridroga. In understanding symptomology of cardiovasculardisorder, it should be noted thatVaivarnya (Panduta /Shweta/Shyava) can be correlated to pallor and cyanosis, Murcchato Syncope, Kasato cough with or without Hemoptysis, Shwasato breathlessness or dyspnea, Ruja to Chest pain or discomfort. Drugs used in various formulations in Hridrogahaveproperties like Pachana, Deepana, Hridya, Anulomana,Rasayana and Krimihara.So, in present article an effort has been made to explain the heart disease and its management through Ayurveda as well as modern medicine

Formulation and Evaluation of Tropicamide loaded Niosomes

Tropicamide is an antimuscarinic drug used in eye disease. The niosomal vesicular drug delivery system facilitate the permeation of drug through the cornea because of the micron/nano size of vesicles containing drugs, which will increase the corneal penetration of drug, and increase the residence time of formulation in ocular cavity that result to increase the bioavailability of drug. Tropicamide loaded Niosomes by investigating the relationship between drug/Nonionic surfactant ratio were successfully prepared by thin film hydration method and compare the result of different grade of span used (20,40,60) with different ratio of cholesterol. niosomes were evaluated for particle size ,drug entrapment efficiency, drug content ,corneal permeation study and in–vitro drug release. Respectively as a result the niosomes designed showed nearly spherical particles with a mean particle size 156.3nm. Niosomes prepared using cholesterol and span 60 in the ratio (1:1) f9 shoed higher entrapment efficiency (84.35%) in-vitro drug release (94.02%) was optimized. Keywords: Niosomes, in-situ gel, vesicles, ocular cul-de-sac, viscoelastic gel

How Visual Stimuli Evoked P300 is Transforming the Brain–Computer Interface Landscape: A PRISMA Compliant Systematic Review

Non-invasive Visual Stimuli evoked-EEGbased P300 BCIs have gained immense attention in recent years due to their ability to help patients with disability using BCI-controlled assistive devices and applications. In addition to the medical field, P300 BCI has applications in entertainment, robotics, and education. The current article systematically reviews 147 articles that were published between 2006-2021*. Articles that pass the pre-defined criteria are included in the study. Further, classification based on their primary focus, including article orientation, participants’ age groups, tasks given, databases, the EEG devices used in the studies, classification models, and application domain, is performed. The application-based classification considers a vast horizon, including medical assessment, assistance, diagnosis, applications, robotics, entertainment, etc. The analysis highlights an increasing potential for P300 detection using visual stimuli as a prominent and legitimate research area and demonstrates a significant growth in the research interest in the field of BCI spellers utilizing P300. This expansion was largely driven by the spread of wireless EEG devices, advances in computational intelligence methods, machine learning, neural networks and deep learning

Electro-catalyzed cynoarylmethylation of isatin for synthesis of 3-hydroxy-3-cynomethyl oxindole derivatives

An efficient and economical method has been developed for synthesis of 3-substituted oxindole by using electrochemically induced condensation of various N-substituted isatin, phenyl acetonitrile

Like Mother(-in-Law) Like Daughter? Influence of the Older Generation’s Fertility Behaviours on Women’s Desired Family Size in Bihar, India

This paper investigates the associations between preferred family size of women in rural Bihar, India and the fertility behaviours of their mother and mother-in-law. Scheduled interviews of 440 pairs of married women aged 16–34 years and their mothers-in-law were conducted in 2011. Preferred family size is first measured by Coombs scale, allowing us to capture latent desired number of children and then categorized into three categories (low, medium and high). Women’s preferred family size is estimated using ordered logistic regression. We find that the family size preferences are not associated with mother’s fertility but with mother’s education. Mother-in-law’s desired number of grandchildren is positively associated with women’s preferred family size. However, when the woman has higher education than her mother-in-law, her preferred family size gets smaller, suggesting that education provides women with greater autonomy in their decision-making on childbearing

TXS 0506+056 with Updated IceCube Data

Past results from the IceCube Collaboration have suggested that the blazar TXS 0506+056 is a potential source of astrophysical neutrinos. However, in the years since there have been numerous updates to event processing and reconstruction, as well as improvements to the statistical methods used to search for astrophysical neutrino sources. These improvements in combination with additional years of data have resulted in the identification of NGC 1068 as a second neutrino source candidate. This talk will re-examine time-dependent neutrino emission from TXS 0506+056 using the most recent northern-sky data sample that was used in the analysis of NGC 1068. The results of using this updated data sample to obtain a significance and flux fit for the 2014 TXS 0506+056 "untriggered" neutrino flare are reported