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Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 435-448 doi: 10.1631/FITEE.1500364

Abstract: The firing of head direction cells (HDCs) and grid cells (GCs) is related to the moving direction andThus, it is considered that these cells play an important role in the rodents’ path integration.present a biologically inspired model of path integration based on the firing characteristics of HDCs and GCs

Keywords： Head direction cells (HDCs)     Grid cells (GCs)     Path integration     Bionic navigation    

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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 makethe grid smarter and reliable.for SG is the instantaneous monitoring of the voltage, current and power flows at all buses in the gridThis 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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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: This can be envisioned through the implementation of concepts of smart grid (SG).One of the key requisites for SG implementation is that the grid should be completely observable.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.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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Hybrid optimization algorithm for modeling and management of micro grid connected system

Kallol ROY,Kamal Krishna MANDAL

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 305-314 doi: 10.1007/s11708-014-0308-8

Abstract: In this paper, a hybrid optimization algorithm is proposed for modeling and managing the micro grid (

Keywords： micro grid (MG)     multi-objective function     artificial bee colony (ABC)     fuel cost     operation and maintenance    

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System resilience enhancement: Smart grid and beyond

Gang HUANG, Jianhui WANG, Chen CHEN, Chuangxin GUO, Bingquan ZHU

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 271-282 doi: 10.15302/J-FEM-2017030

Abstract: Boosting the resilience of power systems is a core requirement of smart grids. In fact, resilience enhancement is crucial to all critical infrastructure systems. In this study, we review the current research on system resilience enhancement within and beyond smart grids. In addition, we elaborate on resilience definition and resilience quantification and discuss several challenges and opportunities for system resilience enhancement. This study aims to deepen our understanding of the concept of resilience and develop a wide perspective on enhancing the system resilience for critical infrastructures.

Keywords： critical infrastructure     cyber-physical systems     energy systems     resilience     smart grid    

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Integration of renewable energies, flexible loads and storages into the German power grid: Actual situation

Harald SCHWARZ, Xiaoshu CAI

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 107-118 doi: 10.1007/s11708-017-0470-x

Abstract: attractive over-funding, more than 1.5 million renewable generation units were connected to the German gridAccording to the EEG, renewable generation units can feed to the grid wherever they are located and whenevertolerable loading of lines or transformers respectively endangers the system stability in total, are German gridTherefore, a tremendous change is needed within the German power grid.

Keywords： grid integration     renewable energies     system stability     storages     flexible loads     new market design    

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Possible role of power-to-vehicle and vehicle-to-grid as storages and flexible loads in the German 110kV distribution grid

Erik BLASIUS

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 146-154 doi: 10.1007/s11708-017-0475-5

Abstract: traffic (in form of E-Mobility) and electrical energy supply (known as power-to-vehicle (P2V), vehicle-to-gridAt the same time, the E-mobility can help to reduce the negative effects of the grid integration of RESBecause per se unplanned and uncontrollable charging processes are harmful for the grid operation, especiallyperiods, the effects can hardly be controlled and can lead to serious technical problems in practical gridBy the combination of both sectors, the possible role of the E-mobility for the distribution grid will

Keywords： P2V     V2G     grid integration     electric vehicles     distribution grid    

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Porcine pluripotent stem cells: progress, challenges and prospects

Jianyong HAN, Yi-Liang MIAO, Jinlian HUA, Yan LI, Xue ZHANG, Jilong ZHOU, Na LI, Ying ZHANG, Jinying ZHANG, Zhonghua LIU

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 1,   Pages 8-27 doi: 10.15302/J-FASE-2018233

Abstract:

Pluripotent stem cells (PSCs) are characterized by their capacity for high self-renewal and multipledifferentiation potential and include embryonic stem cells, embryonic germ cells and induced PSCs.

Keywords： embryonic germ cells     embryonic stem cells     induced pluripotent stem cells     pigs     pluripotent stem cells    

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Can energy storage make off-grid photovoltaic hydrogen production system more economical?

Frontiers of Engineering Management   Pages 672-694 doi: 10.1007/s42524-022-0245-x

Abstract: Under the ambitious goal of carbon neutralization, photovoltaic (PV)-driven electrolytic hydrogen (PVEH) production is emerging as a promising approach to reduce carbon emission. Considering the intermittence and variability of PV power generation, the deployment of battery energy storage can smoothen the power output. However, the investment cost of battery energy storage is pertinent to non-negligible expenses. Thus, the installation of energy-storage equipment in a PVEH system is a complex trade-off problem. The primary goals of this study are to compare the engineering economics of PVEH systems with and without energy storage, and to explore time nodes when the cost of the former scenario can compete with the latter by factoring the technology learning curve. The levelized cost of hydrogen (LCOH) is a widely used economic indicator. Represented by seven areas in seven regions of China, results show that the LCOH with and without energy storage is approximately 22.23 and 20.59 yuan/kg in 2020, respectively. In addition, as technology costs drop, the LCOH of a PVEH system with energy storage will be less than that without energy storage in 2030.

Keywords： hydrogen     off-grid photovoltaic     energy storage     LCOH     engineering economics    

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Photocatalytic activity of ZnO films with micro-grid structure

Chunzhi LI , Wenwen WANG , Junying ZHANG , Hailing ZHU , Weiwei ZHANG , Tianmin WANG ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 289-293 doi: 10.1007/s11783-009-0034-3

Abstract: A layer of zinc oxide (ZnO) micro-grid was deposited on the surface of ZnO film using the DC reactiveThe micro-grid ZnO has a lower specular reflection and a higher diffuse reflection, allowing incidentPhotocatalytic degradation experiments on methylene blue using both ZnO micro-grid and ordinary filmshowed that the ZnO micro-grid has better photocatalytic properties than ordinary film.The ZnO micro-grid enhanced the photocatalytic efficiency of ZnO film by 28% with a degradation time

Keywords： Photocatalysis     ZnO micro-grid     polystyrene latex spheres template     diffuse reflection    

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Optimal design and development of PV-wind-battery based nano-grid system: A field-on-laboratory demonstration

B. TUDU, K. K. MANDAL, N. CHAKRABORTY

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 269-283 doi: 10.1007/s11708-018-0573-z

Abstract: present paper has disseminated the design approach, project implementation, and economics of a nano-gridThe feasibility study indicates that the optimal capacity for the nano-grid system consists of a 2.16

Keywords： photovoltaic (PV)     wind     battery     nano-grid     hybrid optimization model for electric renewable (HOMER)     field-on-lab    

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Determination of telomerase activity in stem cells and non-stem cells of breast cancer

LI Zhi, HE Yanli, ZHANG Jiahua, ZHANG Jinghui, HUANG Tao

Frontiers of Medicine 2007, Volume 1, Issue 3,   Pages 294-298 doi: 10.1007/s11684-007-0056-9

Abstract: Although all normal tissue cells, including stem cells, are genetically homologous, variation in geneIn normal adults, telomerase activation mainly presents in tissue stem cells and progenitor cells givingand only minorities of cells, designated as cancer stem cells, undergo processes analogous to the self-renewalcells that were phenotypically sorted by examining surface marker expression.The results indicated that cancer stem cells show a higher level of enzyme activity than non-stem cells
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Transient performance comparison of grid-forming converters with different FRT control strategies

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 239-250 doi: 10.1007/s11708-022-0856-2

Abstract: Grid-forming converters (GFMs) are faced with the threat of transient inrush current and synchronizationinstability issues when subjected to grid faults.Instead of disconnecting from the grid unintentionally, GFMs are required to have fault ride through(FRT) capability to maintain safe and stable operation in grid-connected mode during grid fault periods

Keywords： grid-forming converters (GFMs)     fault ride through (FRT)     transient stability     transient inrush current    

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Innate and adaptive T cells in influenza disease

Simone Nüssing, Sneha Sant, Marios Koutsakos, Kanta Subbarao, Thi H.O. Nguyen, Katherine Kedzierska

Frontiers of Medicine 2018, Volume 12, Issue 1,   Pages 34-47 doi: 10.1007/s11684-017-0606-8

Abstract: and antibody-producing B cells) achieve viral clearance and host recovery.Adaptive T and B cells maintain immunological memory and provide protection against subsequent infectionsRecent studies also shed light on the role of innate T-cells (MAIT cells, gd T cells, and NKT cells)We summarize the current knowledge on influenza-specific innate MAIT and gd T cells as well as adaptiveCD8+ and CD4+ T cells, and discuss how these responses can be harnessed by novel

Keywords： influenza     innate T cells     CD4+ and CD8+ T cells     vaccination    

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Reprogramming of the pig primordial germ cells into pluripotent stem cells: a brief review

Qijing LEI, Qin PAN, Shuai YU, Na LI, Shulin CHEN, Kuldip SIDHU, Jinlian HUA

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 1,   Pages 28-32 doi: 10.15302/J-FASE-2018222

Abstract:

Primordial germ cells (PGCs) are regarded as unipotent cells that can produce only either spermatogoniaHowever, PGCs can be converted into the pluripotent state by first dedifferentiation to embryonic germ cellsand then by reprogramming to induce them to become pluripotent stem cells (iPSCs).These two stages can be completely implemented with mouse cells.

Keywords： pig     pluripotent stem cells     primordial germ cells     reprogramming    

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Title Author Date Type Operation

Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

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

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

Hybrid optimization algorithm for modeling and management of micro grid connected system

Kallol ROY,Kamal Krishna MANDAL

Journal Article

System resilience enhancement: Smart grid and beyond

Gang HUANG, Jianhui WANG, Chen CHEN, Chuangxin GUO, Bingquan ZHU

Journal Article

Integration of renewable energies, flexible loads and storages into the German power grid: Actual situation

Harald SCHWARZ, Xiaoshu CAI

Journal Article

Possible role of power-to-vehicle and vehicle-to-grid as storages and flexible loads in the German 110kV distribution grid

Erik BLASIUS

Journal Article

Porcine pluripotent stem cells: progress, challenges and prospects

Jianyong HAN, Yi-Liang MIAO, Jinlian HUA, Yan LI, Xue ZHANG, Jilong ZHOU, Na LI, Ying ZHANG, Jinying ZHANG, Zhonghua LIU

Journal Article

Can energy storage make off-grid photovoltaic hydrogen production system more economical?

Journal Article

Photocatalytic activity of ZnO films with micro-grid structure

Chunzhi LI , Wenwen WANG , Junying ZHANG , Hailing ZHU , Weiwei ZHANG , Tianmin WANG ,

Journal Article

Optimal design and development of PV-wind-battery based nano-grid system: A field-on-laboratory demonstration

B. TUDU, K. K. MANDAL, N. CHAKRABORTY

Journal Article

Determination of telomerase activity in stem cells and non-stem cells of breast cancer

LI Zhi, HE Yanli, ZHANG Jiahua, ZHANG Jinghui, HUANG Tao

Journal Article

Transient performance comparison of grid-forming converters with different FRT control strategies

Journal Article

Innate and adaptive T cells in influenza disease

Simone Nüssing, Sneha Sant, Marios Koutsakos, Kanta Subbarao, Thi H.O. Nguyen, Katherine Kedzierska

Journal Article

Reprogramming of the pig primordial germ cells into pluripotent stem cells: a brief review

Qijing LEI, Qin PAN, Shuai YU, Na LI, Shulin CHEN, Kuldip SIDHU, Jinlian HUA

Journal Article