Design of Efficient Power Filter with Reduced Distortion Using Control Algorithm

The electrical distribution system is facing undesirable power quality disturbances due to different types of linear/nonlinear loads on the supply system. The objective of the project is to reduce the distortion level in voltage or current input to the load and at the output of the filter. To design a simple but highly viable hybrid active power buffer that is capable of feeding less distorted voltage to the nonlinear load model. To present an optimal controlling of these buffers so as to minimize the voltage distortion by designing a different algorithm for the same. Comparing the THD levels of the output voltage waveform with the standard controlling method with the proposed control design to further enhance the proposed design such that it is practically feasible to be implemented in grid system having renewable energy resources. In this work, a power filter has been designed using different algorithms with an objective to reduce the Total Harmonic Distortion in the voltage output waveforms. The total harmonic distortion in the voltage output waveform being fed to the load using only the PQ_RLS algorithm is found to be 2.18 %. In the case of the output voltage from the power buffer using PQ_RLS algorithm, the THD level is 0.17 %. The distortion level in the output voltage waveforms in both the cases being fed to the load when compared, it is found that RLS algorithm in combination with PQ algorithm is more effective in reducing the distortion as compared to standard RLS method or PQ method

The Effect on the Telecom Industry and Consumers after the Introduction of Reliance Jio

In the world of intense competition amongst all the industries, the telecom industry also does not fail to stay behind. With the belief that the customer is the king, each and every company in India is willing to go to depths and cross lines every day so that they can be that one brand that customers look for. While choosing a Network, one looks for various factors such as Network coverage, the call rates, the internet plan offered and not to forget but the value-added services as well. Satisfying the consumers in each of this aspect is not an easy task. Based on the literature review and after considering the questions we want to answer; the research problem of the research paper is “The Effect on The Consumers and Telecom Industry after the Introduction of Reliance Jio.” The problem mainly focuses on how the telecom industry was before and after Jio, what people believe and perceive about Reliance Jio and what challenges the competitors faced with the introduction of Jio. Based on the research problem, these are some of the objectives of our study, To study the impact of Reliance Jio on the telecom industry, the change in composition of industry, change in market share and the reforms that were undertaken To identify the effect of Jio on common people and consumer behavior To identify the business strategy followed by Jio and its Competitors The methodology used in the research paper was s Single Cross-Sectional Descriptive Design. With the objective and design, the tool used for analysis were Mean, Standard Deviation to compare and analyze the data, also test like the Z-test and Chi-Square Test were done to test the hypothesis. Finally, the findings of the research paper concluded that Jio disrupted the market to such a level forcing competitors to exit or merge, amongst the consumers, the respondents were eager to test the new competitor in the market and thus the research witnessed a significant shift in the network from other networks to Jio. Through our research we recommend that Consumers should try to shift to Jio, with their very low monthly plans and Huge value-added services offered, which the competitors are still not able to achieve, adds to the success of Jio in India

Evaluation of intrauterine pathologies by hysteroscopy in abnormal uterine bleeding

Background: Hysteroscopy is the gold standard for uterine cavity evaluation because it allows direct visualization of the uterine cavity, mitigate characteristics of lesions such as nature, size, shape, location and vascular pattern. Methods: This was a prospective observational study conducted in department of obstetrics and gynecology at Chirayu Medical College and Hospital, Bhopal (MP). Patients presenting to general gyne OPD with abnormal uterine bleeding at Chirayu Medical College and Hospital between January 2021 to May 2022 were studied. All patients selected for study had a thorough evaluation with detailed history, clinical examination, lab tests and sonography followed by hysteroscopy and endometrial biopsy. Results: Mean age of patients in our study was 44 years with majority of patients in 41-50 years age group. Predominant complaint reported was heavy menstrual bleeding (HMB) (47.50%) followed by HMB with frequent cycle (11.25%). Hysteroscopy detected intrauterine abnormality in 42.50% cases. Most common finding on hysteroscopy in our study was hyperplastic endometrium in 17.50% patients followed by endometrial polyp in 15% of patients. Atrophic endometrium was seen in 2.5% and 2.5% had submucous fibroid. Conclusions: Hysteroscopy allows diagnosis or exclusion of intracavitary pathologies, which are underdiagnosed on routine pelvic sonography. It also enables treatment in the same sitting with accurate tissue biopsy from the representative areas and facilitates planning of further management. When combined with endometrial biopsy and pelvic ultrasonography, it can establish an accurate diagnosis in a majority of patients thereby reducing the burden of hysterectomy

Sequential C-reactive protein: a cheap and a valuable biomarker in patients with sepsis

Background: C-reactive protein (CRP) is a valuable biomarker of sepsis. Levels of CRP increase very rapidly in response to infection, and decrease just as rapidly with the resolution of the condition. The aim of the research was to study, C-reactive protein levels in patients of sepsis and to study the pattern of CRP levels in patients of Sepsis with hypertension, diabetes, smokers and alcoholics.Methods: This prospective observational cohort study was conducted from December 2016 to September 2018 in 100 cases of sepsis. Patients presenting in emergency with sepsis were included as subjects. C- reactive protein was measured in every patient at the time of admission and after 72 hours.  Facts related to history, clinical examination and biochemical parameters were recorded in a pretyped proforma. Data were analyzed using SPSS software.Results: Males outnumbered females. Most of the patients40(40%)  were in the age group of  less than 30 years  age group. CRP levels were markedly elevated in patients with diabetes mellitus (92.2±102.63) as compared to patients with hypertension (36.66±26.97) or both (24.20±12.87). CRP levels were higher in alcoholics (60.59±44.20) as compared to smokers (13.37±10.96).  CRP levels decreased significantly after 72 hours compared to CRP levels at the time of admission (p <0.001) across all patients suggestive of acute infection.Conclusions: Serial CRP measurement, rather than a single determination at the time of admission, is cheap and valuable in the diagnosis of sepsis and in monitoring the response to therapy.  CRP levels shows exaggerated response in diabetes mellitus and alcoholics with sepsis in this study

An approach to diagnosis and management of acute fatty liver of pregnancy

Acute fatty liver of pregnancy is a rare life threatening cause of jaundice in the third trimester of pregnancy and early postpartum period and is associated with a poor outcome. The maternal and fetal outcome can be improved by a high index of suspicion, early diagnosis and prompt delivery. We report a case of a 30 year old parous lady with 36 weeks twin pregnancy with Acute Fatty Liver of Pregnancy [AFLP] and coagulation failure, she responded to prompt induction of labour and appropriate management of the coagulopathy and related complications. We provide a review of literature on jaundice in pregnancy and the clinical approach to management

A REVIEW OF TREATMENT ASPECTS OF COMPUTER VISION SYNDROME (CVS) THROUGH AYURVEDA

Computers have become a critical component of our life. In many situations, everyone indispensably needs to use a computer. Different careers depend purely on computer use since the arrival of games, different software programs, etc. The utility of computers has been extended to such a proportion that people use a computer for more than 8 hours a day. Though inevitable, it damages the eye and circumjacent muscles as the computer causes train on eyes. Most of these symptoms are due to the dryness of eyes and reduced blinking. Shalakya Tantra shares the maintenance of healthy eyesight through diversified Kriyakalpas. Kriyakalpas include Tarpana, Putapaka, Ashchotana, Anjana, Vidalaka, Lepa, etc. All these Kriyakalpas are utilized for the maintenance of a healthy eye. When an imbalance of Tridosha occurs in different Mandalas and Patalas, these Kriyakalpas are used to restore equilibrium in the status of Doshas and result in Samprapti-vighatana. Computer Vision Syndrome is not mentioned directly in Ayurvedic classics but it can be compared with symptoms of Shushkakshipaka of Sarvaksiroga. Acharya Vagbhata has mentioned cooling and rejuvenating therapies for eyes affected by bright light, high-voltage electric spark and heat exposure. Frequent eye examinations and appropriate viewing habits help to prevent the development of the symptoms of CVS. Nasya is highly effective in CVS if it is performed systematically. Thus, Ayurveda is an effective medical system that is crucial to keep your eyes healthy

Diet and lifestyle for the prevention of the cancer care

Cancer is one of the major health problems around the globe and the number of cancer are also get larger day by day. In this 21st century 3 out 10 may get cancer, says WHO. There are several medicines available for the treatment of various types of cancer but no drug is found to be fully effective and safe. Ayurveda, the oldest Indian medicine system is known from very early times for preventing or suppressing various tumors using the natural medicine. Cancer was mentioned in Ayurveda as a Arbuda it is mentioned in detail by Acharya Sushruta. Ayurveda has mentioned various life-style carcinogens. A high fat diet, fast food, packed food, sedentary lifestyle, stress, alcohol and smoking are either causative or an aggravating factor (Nidan) in most of the cancer incidence. AaharVihar mostly plays a decisive role in ancient healing method and theories. It often plays a role in modern society. However, 30-50 percentage of all cancer cases are preventable by a healthy diet and lifestyle in accordance with the world cancer research fund (WCRF) cancer prevention

A cross-sectional study to assess knowledge, attitude and practice among healthcare workers regarding COVID-19 at a National Institute of North India

Background and Objectives. Healthcare workers (HCWs) are the frontline warriors of the battle against COVID-19 and are at high risk of exposure to SARS-CoV-2. Therefore, knowledge, attitude, and practice (KAP) among HCWs play a vital role in preventing and spreading COVID-19. Hence, the current study aimed to assess KAP among HCWs regarding COVID-19. Methods. This descriptive, cross-sectional study enrolled 171 HCWs of a national institute in North India. A self-administered questionnaire was used to assess KAP among HCWs regarding COVID-19. Descriptive statistical analysis was applied to compare and represent the level of association of KAP scores among HCWs. Results. Among HCWs (n=171), 106 (61.98%) were males, and 65 (38.01%) were females. Most (n=76; 44.44%) belonged to the 20-29 age group. The mean±S.D score of HCWs for knowledge, attitude, and practice were 42.76±2.14, 28.91±1.59 and 20.38±1.46, respectively. Excellent knowledge, attitude, and practice score were found in 66.1%, 69.1%, and 97.1% of HCWs, respectively. Knowledge score was maximum in resident doctors (44.09±1.13); however, multi-tasking staff (29.35±1.44), laboratory technicians (29.31±1.21), and ward boys (29.29±1.59) had better attitude scores. Nurses (28.44±1.69) and safaikaramacharis (28.11±1.96) had low attitude scores. The practice score of nurses and multi-tasking staff fared well than resident doctors. Knowledge and attitude scores were statistically associated with the profession and higher level of education. Conclusion. The study highlights that most HCWs have good KAP regarding COVID-19. Continuous dissemination of education on the prevention of the spread of COVID-19 is advised among HCWs to improve their knowledge. Hence, it will strengthen the health workforce in the battle against COVID-19

Power Factor Correction Using Bridgeless Boost Topology

Power quality is becoming a major concern for many electrical users. The high power non linear loads (such as adjustable speed drives, arc furnace, static power converter etc) and low power loads (such as computer, fax machine etc) produce voltage fluctuations, harmonic currents and an inequality in network system which results into low power factor operation of the power system. The devices commonly used in industrial, commercial and residential applications need to go through rectification for their proper functioning and operation. Due to the increasing demand of these devices, the line current harmonics create a major problem by degrading the power factor of the system thus affecting the performance of the devices. Hence there is a need to reduce the input line current harmonics so as to improve the power factor of the system. This has led to designing of Power Factor Correction circuits. Power Factor Correction (PFC) involves two techniques, Active PFC and Passive PFC. An active power factor circuit using Boost Converter is used for improving the power factor. This thesis work analyzes the procedural approach and benefits of applying Bridgeless Boost Topology for improving the power factor over Boost Converter Topology. A traditional design methodology Boost Converter Topology is initially analyzed and compared with the Bridgeless Boost topology and the overall Power Factor (PF) can be improved to the expectation. Method of re-shaping the input current waveform to be similar pattern as the sinusoidal input voltage is done by the Boost converter and the related controls that act as a Power Factor Correction (PFC) circuit. Higher efficiency can be achieved by using the Bridgeless Boost Topology. In this paper simulation of Boost Converter topology and Bridgeless PFC boost Converter is presented. Performance comparisons between the conventional PFC boost Converter and the Bridgeless PFC Boost Converter is done