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A review of superconducting fault current limiters compared with other proven technologies

Superconductivity 2022年第3期3卷 55-72页

作者： Guilherme Gonçalves Sotelo Gabriel dos Santos Felipe Sass Bruno Wanderley França daniel henrique nogueira dias Marcio Zamboti Fortes Alexander Polasek Rubens de Andrade Jr. Fluminense Federal University(UFF) Electrical Engineering DepartmentNiteróiRio de JaneiroBrazil Electrical Energy Research Center(CEPEL) Rio de JaneiroRio de JaneiroBrazil Rio de Janeiro Federal University(UFRJ) Electrical Engineering DepartmentRio de JaneiroRio de JaneiroBrazil

Several substations in operation were commissioned decades *** substations are overstressed,then their protection equipment cannot provide an effective safety condition to the *** the worst cases,short‐circuits can cause permanent damage to the system if the overcurrent is higher than the capacity of the installed *** are some possible solutions for those cases:replace all the equipment in the overstressed substation,build a new one in parallel or install a fault current limiter(FCL)*** an economic point of view,introducing FCLs in the power system is the best way to solve the described *** commercial solutions available are the pyrotechnic FCL,air coil reactor,neutral earthing resistor,and high impedance ***,these devices are limited and present several *** the’70s,there has been a search for reliable FCL devices that do not interfere in the regular operation of substations and could limit the fault currents to the protection system rated *** were so many FCL technologies proposed in the last *** proposed new devices may use superconducting technologies,power electronics,or *** paper reviews proven FCL technologies,focusing on full‐scale devices demonstrated in field and lab *** goal is to introduce the main FCL technologies in development and discuss didactically their operation principle,the built prototypes,the commercial units,whether they exist,and the main drawbacks for each technology presented.A final analysis of the level of maturity for each FCL technology is discussed using the TRL(Technology readiness level)scale in order to find technologies with more potential for mass *** three technologies closer to the full commercial application are:the Resistive Superconducting FCL,the Saturated Iron Core FCL,and the Series Reactor FCL.

关键词： Fault current limiter Short circuit Superconductor Power system protection

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Technical Evaluation of Hybrid Clones of Corymbia spp. to Produce Market Pulp

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Paper And Biomaterials 2022年第3期7卷 1-6页

作者： Marcelo Moreira da Costa Ricardo de Carvalho Bittencourt Thales Augusto Pinto Coelho nogueira Larissa Soares Silva Weslley henrique Martins da Silva Sebastião Renato Valverde Gleison Augusto Dos Santos daniel Alexander Fernandes Coelho Claudilene Aparecida Alves Pena Department of Forest Sciences Federal University of VicosaVicosaMinas Gerais36570900Brazil Aperam BioEnergia Co. CapelinhaMinas Gerais39680000Brazil

This study presents hybrid clones of Corymbia *** by Aperam BioEnergia as potential substitutes for Eucalyptus wood in the pulp *** biomass of Eucalyptus *** compared with that of Corymbia *** performing modified kraft pulping and basic density *** were made by analyzing their respective mean annual increments of cellulose(MAI_(cel))and specific wood consumption(SWC),estimated using a kappa number of(19±1).The results showed that one of the hybrid clones(Corymbia citriodora×Corymbia torelliana,ID 4)had higher basic wood density,higher screened yield,better MAI_(cel#k19),and lower SWC than the other samples,reaching values of 0.608 t/m^(3),54.1%,24.6 ADt/ha/year(i.e.,air dry ton/hectare/year),and 2.74 m^(3)/ADt,***,clone ID 4 had the highest MAI_(cel)/SWC ratio score(8.98).Given its high forest productivity and low industrial cost compared with other samples,as well as its advantages over Eucalyptus ***,we concluded that clone ID 4 has great potential as an alternative biomass for pulp production.

关键词： Corymbia hybrids modified kraft pulping mean annual increments of cellulose(MAIcel) specific wood consumption(SWC)

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2-aminoethyl Dihydrogen Phosphate as a Modulator of Proliferative and Apoptotic Effects in Breast Cancer Cell Lines

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Journal of Pharmacy and Pharmacology 2021年第3期9卷 83-97页

作者： Manuela Garcia Laveli da Silva Laertty Garcia de Sousa Cabral Monique Gonçalves Alves Thais deOliveira Conceição henrique Hesse Rosa Andrea nogueira Laiso daniel da Conceição Rabelo Durvanei Augusto Maria Development and Innovation Laboratory Butantan InstituteSao PauloSP 05503-900Brazil Faculty of Medicine University of São PauloSao PauloSP 01246-000Brazil

Background: Breast cancer is a type of cancer that affects more women throughout the world, in developing anddeveloped countries. 2-AEH2P is a phospholipid analog of cellular membrane, which makes it different from existing molecules fortheir absorption, stability and display anti-inflammatory, anti-proliferative and pro-apoptotic properties. Methods: MCF-7 humanbreast adenocarcinoma cells were treated with 2-AEH2P. The viability and adhesion cells were evaluated by MTT assay. Cell cyclephases, apoptosis, markers and mitochondrial potential were assessed by flow cytometry. Morphological ultrastructural analyzeswere performed by laser confocal microscopy. Results: MCF-7 Tumor cells acquired round shapes, lost cytoplasmic expansions,formed clusters in suspension and decreased significantly viability. There were changes in the morphology, membrane fragmentationand loss of cytoplasmic projection. The obtained concentrations for IC50% were 37.2;25.8;1.8 mM for periods of 24, 48 and 72 h,respectively. Changes in the distribution of cell population phases of the cell cycle showed an increase in fragmented DNA and anincrease in the G2/M phase. The expression β-gal showed proliferative reduction induced by 2-AEH2P. Laser confocal microscopyshowed changes in the mitochondrial membrane and alteration in distribution. Proliferative index of MCF-7 tumor cells treated with2-AEH2P decreased significantly when compared to fibroblast normal cells. The compound 2-AEH2P is a phospholipid withantiproliferative potential and apoptosis modulator.

关键词： Human Breast Adenocarcinoma MCF-7 2-AEH2P Antitumor Apoptosis Cell cycle Senescence

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Technical Evaluation of Hybrid Clones of Corymbia spp. to Produce Market Pulp

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造纸与生物质材料（英文版） 2022年第3期

作者： Marcelo Moreira da Costa Ricardo de Carvalho Bittencourt Thales Augusto Pinto Coelho nogueira Larissa Soares Silva Weslley henrique Martins da Silva Sebasti?o Renato Valverde Gleison Augusto Dos Santos daniel Alexander Fernandes Coelho Claudilene Aparecida Alves Pena

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