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The Development of World Tantalum Powder Technology

He Jilin

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 85-89

Abstract:

This article introduces the technology development of capacitor grade tantalum powders including highvoltage tantalum powders, medium voltage tantalum powders and high specific capacitance tantalum powdersMany tantalum powder producers have invented new processes and technology to increase specific capacitance, reducing impurity content and improve the physical properties of tantalum powder so as to meet therequirement of capacitor manufacturing.

Keywords： tantalum powder     tantalum capacitor     specific capacitance     sodium reduction of potassium fluotantalate    

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Progress of Tantalum & Niobium Industry in China

He Jilin

Strategic Study of CAE 2003, Volume 5, Issue 5,   Pages 40-46

Abstract:

This article introduces the development of tantalum & niobium industry in China and in the world, especially reviews the metallurgical and working technology development of tantalum & niobium inInview of the development condition and economic status of Chinese tantalum & niobium industry in

Keywords： tantalum & niobium industry     technology     continuative development     market    

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NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 373-386 doi: 10.1007/s11705-022-2223-6

Abstract: O4 nanowires, and the obtained composite was used as electrode for electric double layer capacitorThe assembled symmetric electric double layer capacitor achieved a high energy density of 6.55 mW∙h∙cmThe assembled symmetric capacitor exhibited a capacitance retention of 88.96% after 10000 charge/discharge

Keywords： NiCo2O4 nanowires     core−shell structure     quinone-rich     electric double layer capacitor    

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Tantalum (Oxy)Nitride: Narrow Bandgap Photocatalysts for Solar Hydrogen Generation Review

Mu Xiao, Songcan Wang, Supphasin Thaweesak, Bin Luo, Lianzhou Wang

Engineering 2017, Volume 3, Issue 3,   Pages 365-378 doi: 10.1016/J.ENG.2017.03.019

Abstract: Tantalum (oxy)nitride-based materials are a class of the most promising photocatalysts for solar waterTantalum (oxy)nitride-based photocatalysts have experienced intensive exploration, and encouraging progressThis review summarizes the development of tantalum (oxy)nitride-based photocatalysts for solar waterThis paper also proposes future trends to explore in the research area of tantalum-based narrow bandgap

Keywords： Tantalum-based photocatalyst     Narrow bandgap     Water splitting     Hydrogen    

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Differential coupling contributes to synchronization via a capacitor connection between chaotic circuits Regular Papers

Yu-meng XU, Zhao YAO, Aatef HOBINY, Jun MA

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 4,   Pages 571-583 doi: 10.1631/FITEE.1800499

Abstract: In this paper, capacitor coupling is applied between two Pikovsk-Rabinovich (PR) circuits, and electricFurthermore, by applying appropriate intensity for the coupling capacitor, synchronization is also reachedand the energy flow across the coupling capacitor is helpful in regulating the dynamical behaviors ofThe capacitor coupling can avoid energy consumption for the case with resistor coupling, and it can also

Keywords： Synchronization     Voltage coupling     Chaotic circuit     Capacitor coupling    

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Comparison of optimal capacitor placement methods in radial distribution system with load growth and

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 197-213 doi: 10.1007/s11708-013-0249-7

Abstract: radial distribution system (RDS) based on the real and reactive combined loss sensitivity index, as capacitor

Keywords： load growth     load models     reactive power compensation     radial distribution system     power loss index (PLI)     power loss sensitivity (PLS)     index vector (IV)    

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A large-current, highly integrated switched-capacitor divider with a dual-branch interleaved topology Research Articles

Sheng LIU, Menglian ZHAO, Zhao YANG, Haonan WU, Xiaobo WU,liusheng_0827@zju.edu.cn,zhaoml@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2,   Pages 317-327 doi: 10.1631/FITEE.2000404

Abstract: Because it is magnet-free and can achieve a high integration level, the switched-capacitor (SC) converterDue to the self-powered structure, the flying capacitor itself is also a bootstrap capacitor for gate

Keywords： Switched-capacitor converter     Dual branch     Integrated circuit     Bootstrap gate driver    

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A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth metals activation

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1295-0

Abstract: Abstract • Capacitive biochar was produced from sewage sludge. • Seawater was proved to be an alternative activation agent. • Minerals vaporization increased the surface area of biochar. • Molten salts acted as natural templates for the development of porous structure. Sewage sludge is a potential precursor for biochar production, but its effective utilization involves costly activation steps. To modify biochar properties while ensuring cost-effectiveness, we examined the feasibility of using seawater as an agent to activate biochar produced from sewage sludge. In our proof-of-concept study, seawater was proven to be an effective activation agent for biochar production, achieving a surface area of 480.3 m2/g with hierarchical porosity distribution. Benefited from our design, the catalytic effect of seawater increased not only the surface area but also the graphitization degree of biochar when comparing the pyrolysis of sewage sludge without seawater. This leads to seawater activated biochar electrodes with lower resistance, higher capacitance of 113.9 F/g comparing with control groups without seawater. Leveraging the global increase in the salinity of groundwater, especially in coastal areas, these findings provide an opportunity for recovering a valuable carbon resource from sludge.

Keywords： Sewage sludge     Biochar     Seawater     Recourse recovery     Capacitor    

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Advances in Molecular Electronics: A Brief Review Review

Paven Thomas Mathew, Fengzhou Fang

Engineering 2018, Volume 4, Issue 6,   Pages 760-771 doi: 10.1016/j.eng.2018.11.001

Abstract:

The field of molecular electronics, also known as moletronics, deals with the assembly of molecular electronic components using molecules as the building blocks. It is an interdisciplinary field that includes physics, chemistry, materials science, and engineering. Moletronics mainly deals with the reduction of size of silicon components. Novel research has been performed in developing electrical-equivalent molecular components. Moletronics has established its influence in electronic and photonic applications, such as conducting polymers, photochromics, organic superconductors, electrochromics, and many more. Since there is a need to reduce the size of the silicon chip, attaining such technology at the molecular level is essential. Although the experimental verification and modeling of molecular devices present a daunting task, vital breakthroughs have been achieved in this field. This article combines an overview of various molecular components, such as molecular transistors, diodes, capacitors, wires, and insulators, with a discussion of the potential applications of different molecules suitable for such components. We emphasize future developments and provide a brief review of different achievements that have been made regarding graphene-based molecular devices.

Keywords： Moletronics     Molecular transistor     Molecular diode     Molecular capacitor     Molecular wire     Graphene    

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Impact of FACTS devices on exercising market power in deregulated electricity market

Shanmugam PRABHAKAR KARTHIKEYAN, I. JACOB RAGLEND, D. P. KOTHARI

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 448-455 doi: 10.1007/s11708-013-0262-x

Abstract: paper is to study the impact of market power when FACTS devices like thyristor controlled switching capacitor

Keywords： flexible alternating current transmission system (FACTS)     thyristor controlled switching capacitor (TCSC    

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An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations

Manoj Kumar PANDA, Gopinath PILLAI, Vijay KUMAR

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 307-316 doi: 10.1007/s11708-013-0269-3

Abstract: paper an interval type-2 fuzzy logic controller (IT2FLC) was proposed for thyristor controlled series capacitor

Keywords： power system oscillations     thyristor controlled series capacitor (TCSC)     type-2 fuzzy logic system     interval    

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A novel PV sub-module-level power-balancing topology for maximum power point tracking under partial shading and mismatch conditions Article

Mustafa GOKDAG,Mehmet AKBABA

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 12,   Pages 1388-1396 doi: 10.1631/FITEE.1500322

Abstract: The proposed topology benefits from the switched-capacitor (SC) converter concept and is an applica-tion

Keywords： point tracking (MPPT)     Differential power processing (DPP)     Distributed power converters     Switched-capacitor    

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Title Author Date Type Operation

The Development of World Tantalum Powder Technology

He Jilin

Journal Article

Progress of Tantalum & Niobium Industry in China

He Jilin

Journal Article

NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Journal Article

Tantalum (Oxy)Nitride: Narrow Bandgap Photocatalysts for Solar Hydrogen Generation

Mu Xiao, Songcan Wang, Supphasin Thaweesak, Bin Luo, Lianzhou Wang

Journal Article

Differential coupling contributes to synchronization via a capacitor connection between chaotic circuits

Yu-meng XU, Zhao YAO, Aatef HOBINY, Jun MA

Journal Article

Comparison of optimal capacitor placement methods in radial distribution system with load growth and

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Journal Article

A large-current, highly integrated switched-capacitor divider with a dual-branch interleaved topology

Sheng LIU, Menglian ZHAO, Zhao YANG, Haonan WU, Xiaobo WU,liusheng_0827@zju.edu.cn,zhaoml@zju.edu.cn

Journal Article

A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth metals activation

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Journal Article

Advances in Molecular Electronics: A Brief Review

Paven Thomas Mathew, Fengzhou Fang

Journal Article

Impact of FACTS devices on exercising market power in deregulated electricity market

Shanmugam PRABHAKAR KARTHIKEYAN, I. JACOB RAGLEND, D. P. KOTHARI

Journal Article

An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations

Manoj Kumar PANDA, Gopinath PILLAI, Vijay KUMAR

Journal Article

A novel PV sub-module-level power-balancing topology for maximum power point tracking under partial shading and mismatch conditions

Mustafa GOKDAG,Mehmet AKBABA

Journal Article