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Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 413-428 doi: 10.1007/s11708-013-0274-6

Abstract: Renovation of conventional Indian power grid to a SG necessitates incorporation of the phasor measurementunits (PMUs) in the present power grid measurement and monitoring system.proposes optimal redundant geographical locations in the northern, eastern and north-eastern regions of Indianpower grid for PMU placement.The results proposed in this paper can be a stepping stone for revamping the Indian power grid to a SG

Keywords： phasor measurement unit (PMU)     smart grid (SG)     Indian power grid     northern region Indian power grid (NRIPG)     eastern region Indian power grid (ERIPG)     north-eastern region Indian power grid (NERIPG)     redundancy    

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Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in smart power

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 148-161 doi: 10.1007/s11708-015-0344-z

Abstract: Conventional power grids across the globe are reforming to smart power grids with cutting edge technologiesSeveral physical and economic constraints limit the deployment of PMUs in smart power grids.multi-stage simulated annealing (PMSSA) methodology for finding the optimal locations in the smart powermethodology has been validated through simulation studies in IEEE standard bus systems and practical regional Indianpower grids.

Keywords： phasor measurement units (PMUs)     pragmatic PMU placement     simulated annealing (SA)     western region Indianpower grid (WRIPG)    

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Optimal placement of PMUs for the smart grid implementation in Indian power grid—A case study

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 358-372 doi: 10.1007/s11708-013-0257-7

Abstract: The concept of smart grid (SG) can provide a highly reliable power system with optimized utilizationThe present Indian power grid requires revolutionary changes to meet the growing demands and to makeOne of the important requirements for SG is the instantaneous monitoring of the voltage, current and powerThe traditional monitoring system cannot satisfy this requirement since they are based on nonlinear powerThis paper proposes the optimal geographical locations for the PMUs in southern region Indian power grid

Keywords： phasor measurement units (PMUs)     smart grid (SG)     southern region Indian power grid (SRIPG)     integer linear    

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Opinions on Xinjiang in the Development of Western Region of China

Liu Shouren

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 59-62

Abstract:

Xinjiang Uygur Autonomous Region is the largest province of China.The region should be able to accomplish much in the development of western region of China in light ofThe region should tighten up environmentel protection, make full use of light and heat energy, buildThe region should change the simple planting structure of grain and cotton, increase the proportion ofDevelopment of western region of China is of momentous pcactical significance and far — reaching

Keywords： development of western region     Xinjiang     Production Construction Groups    

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Prediction of cost and emission from Indian coal-fired power plants with CO

Naushita SHARMA, Udayan SINGH, Siba Sankar MAHAPATRA

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 149-162 doi: 10.1007/s11708-017-0482-6

Abstract: Coal-fired power plants are one of the most important targets with respect to reduction of CO emissionsand that the Indian power sector contributes to roughly half of all-India CO emissions.of the Indian economy.network based fuzzy inference system (ANFIS) and multi gene genetic programming (MGGP) are used to model Indiancoal-fired power plants with CO capture.

Keywords： carbon capture and storage     power plants     artificial intelligence     genetic programming     neuro fuzzy    

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Research on the Comprehensive Calamity Protection and Reduction Management System in Western Region of

Jin Lei

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 16-20

Abstract:

The strategy of the western development of China, the exploit in the 21st century, has drawn the attentiontechnologists and administrators have all seen the fragility of ecological environment and calamities in the westernAccording to the viewpoint of the author, in the ecological environment construction of the western regiondesign, construction and other steps which is the key factor to the sustainable development of the westernregion.

Keywords： western Region development of China     beauty of mountains and rivers     comprehensive calamity protection    

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INDIAN PERSPECTIVE: SUSTAINABILITY OF BT COTTON IS A MATTER OF CONCERN NOW!

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 1,   Pages 146-149 doi: 10.15302/J-FASE-2021415

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Numerical simulation of underground seasonal cold energy storage for a 10 MW solar thermal power plantin north-western China using TRNSYS

Zulkarnain ABBAS, Yong LI, Ruzhu WANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 328-344 doi: 10.1007/s11708-020-0676-1

Abstract: storage technique based on borehole heat exchangers to cool the condenser water in a 10 MW solar thermal powerThe typical meteorological year (TMY) data of Dunhuang, Gansu province, in north-western China, is utilizedThe proposed seasonal cooling system is capable of enhancing the efficiency of a solar thermal powerof the proposed technique also supports its integration with the condenser unit in the solar thermal power

Keywords： seasonal cold energy storage     borehole heat exchangers     typical meteorological data     TRNSYS     condenser cooling     techno-economic assessment    

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Association of periodontal disease with glycemic control in patients with type 2 diabetes in Indian population

Palka Kaur Khanuja,Satish Chander Narula,Rajesh Rajput,Rajinder Kumar Sharma,Shikha Tewari

Frontiers of Medicine 2017, Volume 11, Issue 1,   Pages 110-119 doi: 10.1007/s11684-016-0484-5

Abstract:

This study aims to investigate the link between glycated hemoglobin and diabetic complications with chronic periodontitis. A total of 207 patients with type 2 diabetes and chronic periodontitis (CP) were divided according to tertiles of mean PISA (periodontal inflamed surface area) scores as low, middle and high PISA groups. Simultaneously a group of 67 periodontally healthy individuals (PH) was recruited. Periodontal examinations, including full-mouth assessment of probing depths (PPD), bleeding on probing, clinical attachment level and plaque scores were determined. Blood analyses were carried out for glycated hemoglobin (HbA1c), fasting plasma glucose (FPG), 2 h post parandial glucose (PPG). Individuals in PH group had significantly better glycemic control than CP group. Upon one-way analysis of variance, subjects with increased PISA had significantly higher HbA1c levels, retinopathy and nephropathy (P<0.05). After controlling for age, gender, body mass index (BMI), socioeconomic status (SES), family history of diabetes and periodontitis, duration of diabetes, the mean PISA in mm2, PPD 4--6 mm (%) and PPD≥7 mm (%) emerged as significant predictors for elevated HbA1c in regression model (P<0.05). Logistic regression analysis revealed that PISA was associated with higher risk of having retinopathy and neuropathy (odds ratio). In our study, the association between glycemic control and diabetic complications with periodontitis was observed.

Keywords： type 2 diabetes mellitus     hemoglobin A     glycated     chronic periodontitis    

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Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 105-113 doi: 10.1007/s11708-018-0536-4

Abstract: This present work is aimed to examine the effect of mass flow rate on distillate output and performance of a solar still in active mode. Outdoor experiments were conducted at the coastal town, Kakinada (16° 93′N/83° 33′E), Andhra Pradesh, India. A solar still with a 30° of fixed cover inclination, 1m of effective basin area, and a flat-plate collector (FPC) with an effective area of 2 m were used. An attempt was also made earlier in passive mode to optimize the water depth for the same solar still for maximum yield and distillation efficiency. For the passive still, it is observed that the capacity of heat storage and heat drop are significant parameters that affect the still performance. For the selected still design, the study reveals that 0.04 m water depth is the optimum value for specific climatic conditions. In the active solar still, with the optimum water depth, different flow rates of 0.5, 1 and 1.5 L/min are considered through FPC. It is observed that both the mass flow rate and the variation of internal heat transfer coefficients with the mass flow rate have a significant effect on the yield and performance of the still. The experimental results show that the combination of 1.5 L/min mass flow rate and an optimum water depth of 0.04m leads to a maximum yield for the active solar still. The enhanced yield of the active solar still is 57.55%, compared with that of the passive solar still, due to increase in area of radiation collection and more heat absorption rate.

Keywords： distillation efficiency     solar still     heat transfer coefficient     water depth     optimum and mass flow rate    

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Pulmonary alveolar microlithiasis: an interesting case report with systematic review of Indian literature

Nidhya Ganesan,Marie Moses Ambroise,Anita Ramdas,King Herald Kisku,Kulwant Singh,Renu G’ Boy Varghese

Frontiers of Medicine 2015, Volume 9, Issue 2,   Pages 229-238 doi: 10.1007/s11684-015-0394-y

Abstract:

Pulmonary alveolar microlithiasis is a rare disease characterized by intra-alveolar presence of microliths. This study reports an interesting case of pulmonary alveolar microlithiasis and provides a systematic review of cases reported from India. A 23-year-old female presented with a history of cough, wheeze, chest pain, and episodic wheeze for five months. Pulmonary function tests demonstrated an obstructive pattern, and chest X-ray showed fine micronodular opacities predominantly involving the middle and lower zones of both lungs. Transbronchial lung biopsy revealed the diagnosis. She responded well to inhaled steroid therapy. A systematic review of literature was performed and identified 73 cases of pulmonary alveolar microlithiasis reported from India. The mean (SD) age of the patients was 28.8 (14.9) years, with an almost equal male:female ratio. Many patients were asymptomatic at presentation. Breathlessness and cough were the most common symptoms, and the disease progressed into respiratory failure associated with cor pulmonale. About one-third of the cases were initially misdiagnosed and treated as pulmonary tuberculosis. Extra-pulmonary manifestations and co-morbidities were also evident in our series. This systematic review helps to determine epidemiological and clinical characteristics of pulmonary alveolar microlithiasis. Further research is needed to elucidate the etiopathogenesis, diagnosis, and therapeutic options, which are beneficial in developing and identifying cost-effective treatment for pulmonary alveolar microlithiasis.

Keywords： pulmonary alveolar microlithiasis     alveolar microlithiasis     microliths     rare diseases    

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Regional Coordinated Development of China’s Ecological Civilization Progress in the New Era

The Comprehensive Research Group for Research on Several Strategic Issues on Ecological Civilization Construction

Strategic Study of CAE 2019, Volume 21, Issue 5,   Pages 74-79 doi: 10.15302/J-SSCAE-2019.05.001

Abstract: several typical areas as the research objects, including Eastern China, Central China, ecological fragile regionin Western China, and the Beijing–Tianjin–Hebei region.

Keywords： coordination     Beijing–Tianjin–Hebei urban agglomeration     Central China     Eastern China     ecological fragile regionin Western China    

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Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Jintai LIN, Anthony KU

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 235-239 doi: 10.1007/s11708-017-0518-y

Abstract: Ultra-low emission” (ULE) technologies have the potential to dramatically reduce emissions from coal-fired powerestimated the potential environmental benefits of the widespread adoption of ULE in the Jing-Jin-Ji Regionscenario assuming no ULE deployment, a “best case” scenario assuming complete adoption of ULE across all powerplants in the region, and a “natural gas” scenario, assuming emissions factors consistent with naturalgas-fired power generation.

Keywords： air quality     atmospheric model     coal     Jing-Jin-Ji Region     PM2.5     ultra-low emissions    

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Technology Innovation and Practice of Green Exploitation Projects of Oil and Gas in the Western Sichuan

Hong-yong Liu,Yi-qi Chen,Yi Yang

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 71-75 doi: 10.15302/J-FEM-2015010

Abstract: The green (environmentally friendly) project of mining oil and gas in the Western Sichuan area is based

Keywords： oil and gas exploitation     green low-carbon     technology innovation     strategic thinking    

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Theory and Method of Power System Integrated Security Region Irrelevant to Operation States: An Introduction Feature Article

Yixin Yu, Yanli Liu, Chao Qin, Tiankai Yang

Engineering 2020, Volume 6, Issue 7,   Pages 754-777 doi: 10.1016/j.eng.2019.11.016

Abstract:

How to comprehensively consider the power flow constraints and various stability constraints in aseries of power system optimization problems without affecting the calculation speed is always a problemIn order to solve such problems, a security region (SR) methodology is proposed, which is a brand-newThe integrated SR introduced in this paper is mainly defined in the power injection space, and includesBased on this finding, the calculation time for power system probabilistic security assessment (i.e.,

Keywords： Security region     Composition     Power flow security     Static voltage stability     Small-disturbance stability    

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Title Author Date Type Operation

Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Journal Article

Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in smart power

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

Journal Article

Optimal placement of PMUs for the smart grid implementation in Indian power grid—A case study

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Journal Article

Opinions on Xinjiang in the Development of Western Region of China

Liu Shouren

Journal Article

Prediction of cost and emission from Indian coal-fired power plants with CO

Naushita SHARMA, Udayan SINGH, Siba Sankar MAHAPATRA

Journal Article

Research on the Comprehensive Calamity Protection and Reduction Management System in Western Region of

Jin Lei

Journal Article

INDIAN PERSPECTIVE: SUSTAINABILITY OF BT COTTON IS A MATTER OF CONCERN NOW!

Journal Article

Numerical simulation of underground seasonal cold energy storage for a 10 MW solar thermal power plantin north-western China using TRNSYS

Zulkarnain ABBAS, Yong LI, Ruzhu WANG

Journal Article

Association of periodontal disease with glycemic control in patients with type 2 diabetes in Indian population

Palka Kaur Khanuja,Satish Chander Narula,Rajesh Rajput,Rajinder Kumar Sharma,Shikha Tewari

Journal Article

Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Journal Article

Pulmonary alveolar microlithiasis: an interesting case report with systematic review of Indian literature

Nidhya Ganesan,Marie Moses Ambroise,Anita Ramdas,King Herald Kisku,Kulwant Singh,Renu G’ Boy Varghese

Journal Article

Regional Coordinated Development of China’s Ecological Civilization Progress in the New Era

The Comprehensive Research Group for Research on Several Strategic Issues on Ecological Civilization Construction

Journal Article

Impact of “ultra low emission” technology of coal-fired power on PM

Xiao LIU, Zhilin LIU, Weidong JIAO, Xuan LI, Jintai LIN, Anthony KU

Journal Article

Technology Innovation and Practice of Green Exploitation Projects of Oil and Gas in the Western Sichuan

Hong-yong Liu,Yi-qi Chen,Yi Yang

Journal Article

Theory and Method of Power System Integrated Security Region Irrelevant to Operation States: An Introduction

Yixin Yu, Yanli Liu, Chao Qin, Tiankai Yang

Journal Article