scholarly journals An integrated automatic aviation meteorological instrument system at C. S. I. airport, Mumbai

MAUSAM ◽  
2021 ◽  
Vol 63 (2) ◽  
pp. 247-260
Author(s):  
K.S. HOSALIKAR ◽  
K.N. MOHAN ◽  
R.D. VASHISHTA ◽  
AJIT TYAGI
Keyword(s):  
Telecommunication Network ◽  
Network Connectivity ◽  
Automatic Generation ◽  
Civil Aviation ◽  
New Delhi ◽  
Similar System ◽  
Vector Averaging ◽  
One Year ◽  
Technical Features ◽  
Aviation Weather

An ‘Integrated Automatic Aviation Meteorological Instrument System’ (IAAMS) is installed atMumbai International Airport in May-2008. The system is State-of-the-Art and has features like automatic generation ofaviation reports; METAR / SPECI, AFTN (Aeronautical Fixed Telecommunication Network) connectivity fordissemination of aviation weather reports to user agencies and ATIS (Automatic Terminal Interface System) forautomatic broadcasting of aviation weather reports to airborne pilot. Besides these features system is having facility toenter manually weather parameter for which sensors are not available such as cloud coverage, past weather, presentweather for generation of aviation reports. The system meets the requirements of operational desirable accuracy ofInternational Civil Aviation Organization (ICAO, 2004) and vector averaging of winds as per World MeteorologicalOrganization guidelines (WMO, 1992). The paper is mainly focusing on the different technical features of this newsystem along with its observational response in last one year at Mumbai airport. Similar system has been installed at othermajor airports; New Delhi (4 sites), Chennai, Hyderabad, Bangalore, Amritsar, Jaipur, and Guwahati. The system issupplied and installed by Telvent Company, Australia.

A FO-PID Controlled Automatic Generation Control of Multi Area Power Systems Tuned by Harmony Search

2020 ◽  
Vol 13 (1) ◽  
pp. 101-109
Author(s):  
Aurobindo Behera ◽  
Tapas K. Panigrahi ◽  
Arun K. Sahoo
Keyword(s):  
Power Systems ◽  
Harmony Search ◽  
Automatic Generation ◽  
System Stability ◽  
Automatic Generation Control ◽  
Similar System ◽  
Thermal Plant ◽  
Clear Idea ◽  
Generation Control ◽  
Fractional Controller

Background: Power system stability demands minimum variation in frequency, so that loadgeneration balance is maintained throughout the operation period. An Automatic Generation Control (AGC) monitors the frequency and varies the generation to maintain the balance. A system with multiple energy sources and use of a fractional controller for efficient control of stability is presented in the paper. At the outset a 2-area thermal system with governor dead band, generation rate constraint and boiler dynamics have been applied. Methods: A variation of load is deliberated for the study of the considered system with Harmony Search (HS) algorithm, applied for providing optimization of controller parameters. Integral Square Time Square Error (ISTSE) is chosen as objective function for handling the process of tuning controller parameters. : A study of similar system with various lately available techniques such as TLBO, hFA-PS and BFOA applied to PID, IDD and PIDD being compared to HS tuned fractional controller is presented under step and dynamic load change. The effort extended to a single area system with reheat thermal plant, hydel plant and a unit of wind plant is tested with the fractional controller scheme. Results: The simulation results provide a clear idea of the superiority of the combination of HS algorithm and FO-PID controller, under dynamically changing load. The variation of load is taken from 1% to 5% of the connected load. Conclusion: Finally, system robustness is shown by modifying essential factors by ± 30%.

THE METHOD OF ESTIMATION FRACTAL DIMENSION OF THE TELECOMMUNICATION NETWORK

2021 ◽  
Author(s):  
Ф.Х. НАХЛИ ◽  
А.И. ПАРАМОНОВ
Keyword(s):  
Fractal Dimension ◽  
Comparative Analysis ◽  
Telecommunication Network ◽  
Shortest Paths ◽  
Network Connectivity ◽  
Telecommunication Networks ◽  
New Method ◽  
Topological Properties

Анализируется фрактальная размерность (ФР) сети связи и ее использование для исследования и планирования сетей связи. Рассматривается применение метода «выращивания кластера» для оценки ФР и предлагается новый метод определения ФР сети, основанный на оценивании связности сети путем поиска кратчайших путей. Показано, что оценка ФР сети является дополнительной характеристикой, отражающей топологические свойства сети. Дается сравнительный анализ предложенного метода и «выращивания кластера». Полученные результаты позволяют выбрать метод и получить оценки ФР сети в зависимости от ее особенностей. The paper analyzes the fractal dimension of the network and its use for telecommunication networks research and planning. The analysis of the "cluster growing" method for assessing the fractal dimension is given and a new method for assessing the fractal dimensionof anetwork is proposed, based onassessing the network connectivity by finding the shortest paths. The article shows that the assessment of the fractal dimension of the network is an additional characteristic that reflects the topological properties of the network. Comparative analysis of the proposed method and "cluster growing" is given. The results obtained make it possible to select a method and obtain estimates of the fractal dimension of the network, depending on its features.

scholarly journals Intra-operative uterine scar condition and fetomaternal outcome in patients of previous lower segment caesarean section (LSCS) with scar tenderness

2017 ◽  
Vol 5 (11) ◽  
pp. 4911
Author(s):  
Nidhi Gupta ◽  
Renuka Sinha
Keyword(s):  
Signs And Symptoms ◽  
Caesarian Section ◽  
New Delhi ◽  
Lower Segment ◽  
Average Hospital ◽  
Lower Segment Caesarean Section ◽  
Uterine Scar ◽  
Nicu Admission ◽  
One Year ◽  
A Prospective Study

Background: During past few years, there is increasing trend in trial of labor in cases of previous lower segment caesarian section (LSCS). It needs vigilant approach in identifying signs and symptoms of giving way of previous scar. This study is to see the intra-operative uterine scar condition and feto-maternal outcome in patients of previous LSCS with scar tenderness.Methods: This is a prospective study done in Safdarjung hospital, New Delhi. It includes 120 patients of previous lower segment caesarian section with scar tenderness operated as emergency cases over a period of one year. It excludes elective repeat LSCS.Results: During this period repeat emergency LSCS was done in 862 cases and scar tenderness was seen in 120 cases (13.92 %). Out of 120 cases enrolled for the study intra-operative scar was intact in 69 cases (57.5%). Scar was thinned out in 27 cases (22.5%). Scar dehiscence was found in 21 cases (17.5%). Rupture occurred in 3 cases (2.5%) out of which 2 were Fresh still births. NICU admission was done in 11 cases (9.17%). 1 neonatal death occurred. No maternal death was recorded. Average hospital stay was 6 days. Blood transfusion was needed in 23 cases (19.2%).Conclusions: Scar tenderness is a very important tool for predicting scar integrity. All cases of previous LSCS should have institutional delivery.

scholarly journals Cutaneous Amyloidosis: A Pilot Study at a Teaching Hospital in New Delhi

2017 ◽  
Vol 19 (1) ◽  
pp. 35-39
Author(s):  
Zeeba S Jairajpuri ◽  
Safia Rana ◽  
Shaan Khetrapal ◽  
Pooja Arora ◽  
Sujata Jetley
Keyword(s):  
Pilot Study ◽  
Congo Red ◽  
Polarized Light ◽  
New Delhi ◽  
Histologic Diagnosis ◽  
Systemic Involvement ◽  
Extracellular Compartment ◽  
Macular Amyloidosis ◽  
Skin Biopsies ◽  
One Year

Background: Amyloidosis is characterized by the deposition of polymeric fibrillar proteins in the extracellular compartment in tissues and organs ultimately leading to damage with functional compromise. Cutaneous amyloidosis is clinically classified into more common macular, papular, and the rarer nodular form. The present study was undertaken with the aim to histopathologically analyze and characterize clinically diagnosed amyloid cases.Methods:The present study was a retrospective analysis of skin biopsies conducted over a one year period. Data on the age and presenting clinical features were retrieved from the accompanying laboratory request forms or patients records wherever available. All skin biopsies with a histologic diagnosis of amyloid were retrieved and reviewed, the pattern of amyloid deposition identified and classified. Special stains including Congo Red stain was done in all the cases.Results: Histopathological confirmation of cutaneous amyloidosis was seen in nine out of fourteen cases and was confirmed by positive Congo-red stain under polarized light. Out of this seven were females and two were males. Majority of the lesions were of macular type. In all the nine cases, family history was negative and no evidence of systemic involvement was noted, either clinically or based upon the lab investigations.Conclusions: In this pilot study of 9 cases, histologically diagnosed as cutaneous amyloidosis we noted a female preponderance in young and middle-aged persons. Macular amyloidosis was the most common form and the most common site of involvement, the upper extremity and the inter-scapular/back region.J MEDICINE Jan 2018; 19 (1) : 35-39

scholarly journals Technical Note: One year of Raman-lidar measurements in Gual Pahari EUCAARI site close to New Delhi in India – Seasonal characteristics of the aerosol vertical structure

2012 ◽  
Vol 12 (10) ◽  
pp. 4513-4524 ◽  
Author(s):  
M. Komppula ◽  
T. Mielonen ◽  
A. Arola ◽  
K. Korhonen ◽  
H. Lihavainen ◽  
...  
Keyword(s):  
Technical Note ◽  
New Delhi ◽  
Aerosol Layer ◽  
Raman Lidar ◽  
Extinction Coefficients ◽  
Seasonal Characteristics ◽  
Lidar Measurements ◽  
Multi Wavelength ◽  
Lidar Ratio ◽  
One Year

Abstract. One year of multi-wavelength (3 backscatter + 2 extinction + 1 depolarization) Raman lidar measurements at Gual Pahari, close to New Delhi, were analysed. The data was split into four seasons: spring (March–May), summer (June–August), autumn (September–November) and winter (December–February). The vertical profiles of backscatter, extinction, and lidar ratio and their variability during each season are presented. The measurements revealed that, on average, the aerosol layer was at its highest in spring (5.5 km). In summer, the vertically averaged (between 1–3 km) backscatter and extinction coefficients had the highest averages (3.3 Mm−1 sr−1 and 142 Mm−1 at 532 nm, respectively). Aerosol concentrations were slightly higher in summer compared to other seasons, and particles were larger in size. The autumn showed the highest lidar ratio and high extinction-related Ångström exponents (AEext), indicating the presence of smaller probably absorbing particles. The winter had the lowest backscatter and extinction coefficients, but AEext was the highest, suggesting still a large amount of small particles.

scholarly journals One-year experience with the Cochlear™ Paediatric Implanted Recipient Observational Study (Cochlear P-IROS) in New Delhi, India

2015 ◽  
Vol 10 (2) ◽  
pp. 57-65 ◽  
Author(s):  
Shomeshwar Singh ◽  
Shashank Vashist ◽  
Thathya V. Ariyaratne
Keyword(s):  
Observational Study ◽  
New Delhi ◽  
One Year

scholarly journals COMPARATIVE STUDY BETWEEN HERNIOPLASTY AND HERNIORRHAPHY AT ESI PGIMSR, BASAIDARAPUR, NEW DELHI

2020 ◽  
pp. 53-54
Author(s):  
Rakesh Kumar Thakur ◽  
Tanweer Karim ◽  
Debarshi Jana
Keyword(s):  
Comparative Study ◽  
Care Setting ◽  
Current Approach ◽  
Abdominal Muscles ◽  
New Delhi ◽  
Post Operative Pain ◽  
Scrotal Swelling ◽  
One Year ◽  
Retrospective Comparative Study ◽  
Surgical Setting

Inguinal hernia is a very common problem. Surgical repair is the current approach. Local anaesthesia is a suitable and economic option for open repairs, and should be popularized in day-care setting. Numerous repair methods have been described to date. Mesh repairs are superior to "non-mesh" tissue-suture repairs, but in some socio economically backward areas and in rural setups still non-mesh tissue repair is being performed. This study is done to compare and demonstrate the efficacy, acceptability, outcomes and recurrences of herniorrhaphy (Bassinis's repair) and hernioplasty (Lichtenstein's tension free repair). This retrospective comparative study of herniorrhaphy and hernioplasties was conducted in 62 patients who were admitted and treated in surgical setting from August 2014 to July 2015. Patients were evaluated thoroughly with physical examination, routine investigations, and ultrasonography. Patients were selected either for herniorrhaphy or hernioplasty depending on the age of presentation, tone of the abdominal muscles and size of the defect. All the operated patients were followed up for a period of one year. In the study paediatric hernias subjected to herniotomies were excluded. This study showed that majority of the patients who were subjected to herniorrhaphy were patients below the age of 50 years with good abdominal tone and majority of people above 60 years with weak abdominal tone i.e. those presenting with direct hernias, were subjected for hernioplasty and neither of the patient had any recurrence or other complications. Out of the 38 patients who underwent hernioplasty 3 patients had infection and mesh extrusion and 7 had inguinodynia. Out of the 24 patients who underwent herniorrhaphy 4 had scrotal swelling and about 9 of the patients had increased post-operative pain compared to patients who underwent hernioplasties. But no cases of wound infections were reported in Bassini’s repair. This study shows that, pre operatively if the patient is assessed properly and then subjected to herniorrhaphy or hernioplasties the rate of recurrence is minimal to nil and more economical. In our study there were no hernia recurrences noticed.

The Electronic Flight Bag Based on Mobile Terminal

2013 ◽  
Vol 373-375 ◽  
pp. 1863-1867
Author(s):  
Gui Shu Xia ◽  
Jing Lu ◽  
Yuan Qing He
Keyword(s):  
Mobile Terminal ◽  
Automatic Generation ◽  
General Aviation ◽  
Civil Aviation ◽  
Aviation Industry ◽  
Flight Safety ◽  
Good Market ◽  
Research Platform ◽  
Level 1 ◽  
S Model

The electronic flight bag in China with few products owning Chinese independent intellectual property is attracting increasing attention in the field of the civil aviation industry in recent years. This paper introduced a level 1 EFB(Electronic Flight Bag) for general aviation with iOS as research platform. In order to realize interactive electronic checklists and automatic generation of electronic flight log, C/S model is adopted to store, update and display cabin documents, such as aeronautical charts, flight manual. Experiments show that electronic flight bag based on mobile terminal can provide the user with a good experience, which greatly reduces the pilots cabin burden and is closer to the users requirements. Moreover, the system provides an efficient way to improve safety of flight safety. Therefore, the electronic flight bag has good market prospect and practical promotional value.

Uninsured Workers Have More Severe Hospitalizations

2017 ◽  
Vol 27 (2) ◽  
pp. 154-175 ◽  
Author(s):  
Bethany Boggess ◽  
Brittany Scott ◽  
Lisa Pompeii
Keyword(s):  
Hospital Staff ◽  
The United States ◽  
Injured Workers ◽  
Hospital Charges ◽  
Unexpected Finding ◽  
Similar System ◽  
Department Of State ◽  
Work Related ◽  
One Year ◽  
Publicly Insured

Texas’ unique elective system of workers’ compensation (WC) coverage is being discussed widely in the United States as a possible model to be adopted by other states. Texas is the only state that does not mandate that employers provide state-certified WC insurance. Oklahoma passed legislation for a similar system in 2013, but it was declared unconstitutional by the Oklahoma Supreme Court in 2016. This study examined 9523 work-related hospitalizations that occurred in Texas in 2012 using Texas Department of State Health Services data. We sought to examine work-related injury characteristics by insurance source. An unexpected finding was that among those with WC, 44.6% of the hospitalizations were not recorded as work related by hospital staff. These unrecorded cases had 1.9 (1.6–2.2) times higher prevalence of a severe risk of mortality compared to WC cases that were recorded as work related. Uninsured and publicly insured workers also had a higher prevalence of severe mortality risk. The hospital charges for one year were $615.2 million, including at least $102.8 million paid by sources other than WC, and with $29.6 million that was paid for by injured workers or by taxpayers. There is an urgent need for more research to examine how the Texas WC system affects injured workers.

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