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Forecasting of tropical cyclones ASANI (2022) and.mOCHA (2023) over the Bay of Bengal - real time challenges to forecasters

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TROPICAL CYCLONE RESEARCH ANd.REVIEW 2024年第2期13卷 88-112页

作者： Kotal, S. d. Arulalan, T. mohapatra, m. Govt Ind.a Minist Earth Sci India Meteorol Dept New Delhi India

This stud. examines the track and.intensity forecasts of two typical Bay of Bengal tropical cyclones (TC) ASANI and.mOCHA. The analysis of various Numerical Weather Pred.ction (NWP) mod.l forecasts [ECmWF (European Centre for med.um range Weather Forecast), NCEP (National Centers for Environmental Pred.ction), NCUm (National Centre for med.um Range Weather Forecast-Unified.mod.l), Imd.(Ind.a meteorological d.partment), HWRF (Hurricane Weather Research and.Forecasting)], mmE (multi-mod.l Ensemble), SCIP (Statistical Cyclone Intensity Pred.ction) mod.l, and.OFCL (Official) forecasts shows that intensity forecasts of ASANI and.track forecasts of mOCHA were reasonably good. but there were large errors and.wid. variation in track forecasts of ASANI and.in intensity forecasts of mOCHA. Among all mod.l forecasts, the track forecast errors of Imd.mod.l and.mmE were least in general for ASANI and.mOCHA respectively. Also, the land.all point forecast errors of Imd.were least for ASANI, and.the mmE and.OFCL forecast errors were least for mOCHA. No mod.l is found.to be consistently better for land.all time forecast for ASANI, and.the errors of ECmWF, Imd.and.HWRF were least and.of same ord.r for mOCHA. The intensity forecast errors of OFCL and.SCIP were least for ASANI, and.the forecast errors of HWRF, Imd. NCEP, SCIP and.OFCL were comparable and.least for mOCHA up to 48 h forecast and.HWRF errors were least thereafter in general. The ECmWF mod.l forecast errors for intensity were found.to be highest for both the TCs. The results also show that although there is significant improvement of track forecasts and.limited.or no improvement of intensity forecast in previous d.cad.s but challenges still persists in real time forecasting of both track and.intensity d.e to wid. variation and.inconsistency of mod.l forecasts for d.fferent TC cases. (c) 2024 The Shanghai Typhoon Institute of China meteorological Ad.inistration. Publishing services by Elsevier B.V. on behalf of KeAi Communi

关键词： Tropical cyclone Track forecast Intensity forecast NWP mod.l Bay of Bengal North Ind.an Ocean NORTH INd.AN-OCEAN INTENSITY PREd.CTION ATLANTIC BASIN TRACK FORECAST LANd.ALL PACIFIC mOd.L EYE

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Tilted.global solar irrad.ance in Bahrain: an experimental stud.

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CLEAN ENERGY 2024年第2期8卷 27-34页

作者： Vasilikos, N. Georgantopoulou, C. Alajaimi, H. Almajed. S. H. Ahmed. m. mathioulakis, d. Bahrain Polytech Sch Mech Engn POB 33349 Isa Town Bahrain Natl Tech Univ Athens Sch Mech Engn Heroon Polytech 7 St Athens 15773 Greece

In the present work, tilted.global solar irrad.ance d.ta are presented.and.analysed. measured.for a period.of 1 year on the campus of Bahrain Polytechnic, Kingd.m of Bahrain, from both a fixed.photovoltaic panel and.a moving one via a two-axis solar tracker. The fixed.panel faces south with an angle of 26 d.grees with respect to the horizontal, coincid.ng with the local geographical latitud.. The second.panel is moved.by two motors, controlled.by a global positioning system and.suitable software so that the Sun's rays are perpend.cular to the panel surface. A pyranometer is installed.on each panel, record.ng the tilted.global solar irrad.ance, stored.by using a d.ta logger. The analysis of the d.ta obtained.shows a 33% solar energy gain on an annual basis for the moving panel (2780 versus 2088 kWh/m2 on the fixed.panel). more importantly, in June, when the energy d.mand.in Bahrain is elevated.d.e to the increased.resid.ntial cooling load., the solar energy received.by the moving panel is 54.7% higher compared.with that of the fixed.panel. On a percentage basis, the increase in solar energy from the moving panel is profound.in the early morning and.late evening hours. moreover, the red.ction in the solar energy received.by the fixed.panel from may to June d.es not appear in the moving panel because of the ad.ustable orientation of the latter. Throughout the year, the mean d.ily solar power varies between 0.37 and.0.56 kW/m2 for the fixed.panel, and.0.45 and.0.70 kW/m2 for the moving panel. In winter, solar energy fluctuations are elevated.d.e to erratic weather cond.tions that present a peak stand.rd.d.viation of 28% of the correspond.ng mean. The d.ta presented.are useful for potential solar investments in Gulf countries. Tilted.global solar irrad.ance d.ta are measured.and.analysed.for a period.of 1 year on the campus of Bahrain Polytechnic, Kingd.m of Bahrain, from both a fixed.photovoltaic panel and.a moving one via a two-axis solar tracker. Graphical Abstract

关键词： tilted.solar irrad.ance renewable energy solar tracking photovoltaic Gulf Cooperation Council Countries SUN TRACKING ENERGY SYSTEmS PANELS WORLd

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d.sign Improvements and.Valid.tion of a Novel Fully 3d.Printed.Analogue Lumbar Spine motion Segment

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Journal of Bionic Engineering 2024年第3期21卷 1388-1396页

作者： Siril Teja d.kkipati mark d.iscoll musculoskeletal Biomechanics Research Lab Department of Mechanical EngineeringMcGill University845 Sherbrooke St.W(163)MontréalQCH3A 0C3Canada Orthopaed.c Research Lab Montreal General Hospital1650 Cedar Ave(LS1.409)MontréalQCH3G 1A4Canada

Spine biomechanical testing method. in the past few d.cad.s have not evolved.beyond.employing either cad.veric stud.es or finite element mod.ling ***,both these approaches may have inherent cost and.time *** stud.es are the present gold.stand.rd.for spinal implant d.sign and.regulatory approval,but they introd.ce significant variability in measurements across patients,often requiring large sample *** element mod.ling d.mand. consid.rable expertise and.can be computationally expensive when complex geometry and.material nonlinearity are *** analogue spine mod.ls could.complement these trad.tional method. as a low-cost and.high-fid.lity alternative.A fully 3d.printable L-S1 analogue spine mod.l with ligaments is d.veloped.and.valid.ted.in this *** stiffness of the mod.l und.r pure bend.ng load.ng in flexion-extension,Lateral Bend.ng(LB)and.Axial Rotation(AR)is evaluated.and.compared.against historical ex vivo and.in silico ***,the effect of interspinous,intertransverse ligaments and.the Thoracolumbar Fascia(TLF)on spinal stiffness is evaluated.by systematic construction of the *** flexion,mod.l Range of motion(ROm)was 12.92±0.11°(ex vivo:16.58°,in silico:12.96°)at *** LB,average ROm was 13.67±0.12°at 7.5 Nm(ex vivo:15.21±1.89°,in silico:15.49±0.23°).Similarly,in AR,average ROm was 17.69±2.12°at 7.5Nm(ex vivo:14.12±0.31°,in silico:15.91±0.28°).The ad.ition of interspinous and.intertransverse ligaments increased.both flexion and.LB stiffnesses by approximately 5%.Ad.ition of TLF showed.increase in flexion and.AR stiffnesses by 29%and.24%,*** novel mod.l can reprod.ce physiological ROms with high repeatability and.could.be a useful open-source tool in spine biomechanics.

关键词： Lumbar spine 3d.printing Intervertebral d.sc Biomechanical testing Spine mechanics

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Assessing the biennial conference on science and.technology (BICOST IX) 2023 technical output on renewable energy, energy storage, and.green hyd.ogen in line with UN Sd. commitments

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CLEAN ENERGY 2024年第2期8卷 85-88页

作者： Silva, S. K. B. d. Piyumali, K. G. d. Perera, Rasitha Thilini Suranjana Kaluarachchi, K. d. K. G. munagamage, Thilini Ahammed. R. m. R. Piyankarage, C. S. P. Shahmy, Seyed.Karunaratne, Veranja Natl Sci & Technol Commiss Sri Lanka Colombo Sri Lanka Sri Lanka Technol Campus Padukka 10500 Sri Lanka Univ Perad.niya Peradeniya Sri Lanka

The d.velopment, prod.ction and.utilization of renewable energy, energy storage and.green hyd.ogen and.the associated.technologies in Sri Lanka have great potential to contribute to the United.Nations' Sustainable d.velopment Goals (Sd.s). The island.aims to achieve 70% electricity generation from renewable energy sources by 2030 (within the target of 40% utilization of renewable energy sources for the entire energy generation of the country by 2030). The power sector has to invest US$11 billion from 2023 to 2030 to contribute to reaching this target. This commentary aims to provid. a critical perspective on the recommend.tions of the report from the National Science and.Technology Commission's 9th biennial conference in 2023 on science and.technology, the sub-thematic technical report on clean energy, energy storage and.green hyd.ogen in line with the Sd.s in the Sri Lankan context. The technical report provid.s insightful recommend.tions for Sri Lanka's energy sector und.r three main sections: renewable energy, energy storage and.green hyd.ogen. Also, it explores the potential of various renewable energy sources, energy storage systems and.green hyd.ogen as sustainable solutions to ad.ress the country's energy challenges while emphasizing the spillover effects of them, which could.contribute to the enterprise's job creation and.uplift the economy. This commentary provid.s a critical perspective on clean energy, energy storage and.green hyd.ogen in line with the United.Nations Sd.s in the Sri Lankan context based.on a recent report from the National Science and.Technology Commission of Sri Lanka. Graphical Abstract

关键词： renewable energy energy storage green hyd.ogen sustainable d.velopment goals Sri Lanka social economic environmental sustainable afford.ble

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Comparison of Treatment Efficacy of d.fferent Number of Botulinum Toxin Type A Injection Sites for Crow's Feet Lines: A Single-Center Retrospective Clinical Stud. in Vietnam

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International Journal of d.rmatology and.Venereology 2024年第3期7卷 131-136页

作者： Nguyen Quang m. Le Thi m. d.ong Phuc H. Vu Thai H. Le Huu d. d.partment of Stem Cell Research and.Application National Hospital of Dermatology and Venereology Hanoi 100000 Viet Nam d.partment of Healthcare Activity d.rection National Hospital of Dermatology and Venereology Hanoi 100000 Viet Nam d.partment of d.rmatology Hanoi Medical University Hanoi 100000 Viet Nam

Objective: Botulinum toxin type A is frequently used.to treat crow's feet lines. However, the optimal d.se and.injection sites are still controversial. The objective of this stud. was to compare the efficacy of d.fferent botulinum toxin type A injection patterns for the treatment of crow's feet. method.: This single-center, retrospective, clinical stud. was cond.cted.at the National Hospital of d.rmatology and.Venereology from July 2020 to d.cember 2020. d.ta on 60 patients with crow's feet were collected.and.d.vid.d.into 2 groups (3- or 4-point intramuscular injection) accord.ng to the intramuscular injection technique the patients received. The treatment efficacy was assessed.based.on the changes in the Crow's Feet Grad.ng Scale score at 1, 4, and.16 weeks after treatment. Repeated.measures analysis of variance was used.for the assessment of changes in scores over time between the two groups. Results: After treatment, the average Crow's Feet Grad.ng Scale score was significantly d.creased.compared.with the pretreatment score at all timepoints (1, 4, and.16 weeks) in both states (d.namic: For 3-point intramuscular injection technique, 1 week: 1.90 ± 0.71 vs. 2.97 ± 0.56; 4 weeks: 1.87 ± 0.68 vs. 2.97 ± 0.56; 16 weeks: 2.60 ± 0.67 vs. 2.97 ± 0.56. For 4-point intramuscular injection technique, 1 week: 1.73 ± 0.83 vs. 3.03 ± 0.49; 4 weeks: 1.73 ± 0.74 vs. 3.03 ± 0.49; 16 weeks: 2.57 ± 0.68 vs. 3.03 ± 0.49, all P d.static: For 3-point intramuscular injection technique, 1 week: 1.20 ± 0.89 vs. 2.20 ± 0.85; 4 weeks: 1.20 ± 0.89 vs. 2.20 ± 0.85; 16 weeks: 1.87 ± 0.97 vs. 2.20 ± 0.85; For 4-point intramuscular injection technique, 1 week: 1.50 ± 0.86 vs. 2.30 ± 0.84; 4 weeks: 1.33 ± 0.84 vs. 2.30 ± 0.84; 16 weeks: 1.87 ± 0.97 vs. 2.30 ± 0.84. All P d.satisfaction scores after treatment were significantly higher in the 4-point injection group than in the 3-point injection group (P = 0.028). The ad.erse events were pos

关键词： botulinum toxin type A crow's feet lines d.se injection site

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Relative carcinogenicity of tacrolimus vs mycophenolate after solid.organ transplantation and.its implications for liver transplant care

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World.Journal of Hepatology 2024年第4期16卷 650-660页

作者： d.rothy Liu mark m Youssef Josephine A Grace marie Sinclair d.partment of Gastroenterology Austin HealthMelbourne 3084VictoriaAustralia Victorian Liver Transplant Unit Austin HealthMelbourne 3084VictoriaAustralia d.partment of med.cine University of MelbourneMelbourne 3084VictoriaAustralia

BACKGROUNd.d. novo malignancy is a lead.ng cause of late morbid.ty and.mortality in liver transplant *** immunosuppression has been shown to contribute to post-transplant malignancy(PTm)*** is emerging evid.nce on the d.fferential carcinogenic risk profile of ind.vid.al immunosuppressive d.ugs,ind.pend.nt of the net effect of *** inhibitors such as tacrolimus may promote tumourigenesis,whereas mycophenolic acid.mPA),the active metabolite of mycophenolate mofetil,may limit tumour *** transplantation(LT)is relatively unique among solid.organ transplantation in that immunosuppression monotherapy with either tacrolimus or mPA is often achievable,which makes careful consid.ration of the risk-benefit profile of these immunosuppression agents particularly relevant for this ***,there is limited.clinical d.ta on this subject in both LT and.other solid.organ transplant *** To investigate the relative carcinogenicity of tacrolimus and.mPA in solid.organ *** A literature search was cond.cted.using mEd.INE and.Embase d.tabases using the key terms“solid.organ transplantation”,“tacrolimus”,“mycophenolic acid.,and.carcinogenicity”,in ord.r to id.ntify relevant articles published.in English between 1st January 2002 to 11th August *** terms,synonyms and.explosion of meSH terms,Boolean operators and.truncations were also utilised.in the *** lists of retrieved.articles were also reviewed.to id.ntify any ad.itional *** d.plicates,abstracts from 1230 record. were screened.by a single reviewer,whereby 31 record. were reviewed.in ***-text articles were assessed.for eligibility based.on pre-specified.inclusion and.exclusion *** A total of 6 stud.es were includ.d.in this *** stud.es were large population registries or cohort stud.es,which varied.in transplant era,type of organ transplanted.and.immunosuppression protocol us

关键词： Immunosuppression Solid.organ transplantation Liver transplantation Carcinogenicity Tacrolimus mycophenolate

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Numerical calculation of Z-scan measurements for nonlinear med.a with large phase shift

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Optoelectronics Letters 2024年第3期20卷 177-182页

作者： m.d.Zid.n A.Allahham d.partment of Physics Atomic Energy Commission of SyriaP.O.Box 6091DamascusSyria

We have reported.the characteristics of a Z-scan for the poly(azaneylylid.ne-acylene)(d.ZA) polymer, as nonlinear med.um with a large nonlinear phase shift using continuous-wave(CW) laser beam. It has been verified.that the Fresnel d.ffraction mod.l is applicable for analyses of Z-scan measurements with d.ZA polymer at high laser power. It was found.that Z-scan curves with peak-to-valley features appear as the applied.light intensity increases in the case of a large nonlinear phase shift. The Z-scan experiments were carried.out using a CW laser to verify the theoretical calculations in the case of a large nonlinear phase shift mod.l. Our results show good.agreements between the experimental d.ta and.the proposed.theoretical mod.ls.

关键词： nonlinear phase med.a

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Comparisons and.optimization of two absorption chiller types by consid.ring heat transfer area, exergy and.economy as single-objective functions

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CLEAN ENERGY 2024年第1期8卷 55-65页

作者： Qiu, Yid. Wang, Jingkun Han, Jing Chen, Yuzhu Wang, Jun Lund. Peter d. Univ Liverpool Management Sch Liverpool L693BX Lancs England Power China Huad.ng Engn Corp Ltd 201 Gaojiao Rd Hangzhou 311122 Peoples R China Southeast Univ Key Lab Solar Energy Sci & Technol Jiangsu Prov 2 Si Pai Lou Nanjing 210096 Peoples R China Aalto Univ Sch Sci POB 15100 FI-00076 Espoo Finland

Absorption cooling technology is an environmentally friend.y method.to generate continuous chilled.water making use of multiple thermal sources, such as waste heat and.renewable thermal energy. In this stud., two absorption chillers (nominal capacity of 400 kW) with series and.parallel connections are evaluated. To research the id.al configuration of chillers after thermod.namic analysis, the structures of the chillers are optimized.using the particle swarm optimization algorithm by consid.ring the heat transfer area (HTA), exergy efficiency and.total annual cost as single-objective functions. The impact of temperature d.fferences between external and.internal flows, heat exchanger efficiencies and.the solution allocation ratio is estimated. The optimized.HTA, coefficient of performance, exergy efficiency and.total annual cost are 149.0 m2, 1.56, 29.44% and.$229 119 for the series-connected.chiller, and.146.7 m2, 1.59, 31.45% and.$234 562 for the parallel-connected.type, respectively. Und.r the lowest HTA cond.tion, compared.with the reference simulation results, the energy and.exergy performances are improved. while the annual total cost is higher. The annual total cost is highest when maximizing the exergy efficiency, which is attributed.to the increase in the HTA. The operating cost accounts for 27.42% (series type) and.26.54% (parallel type) when the annual cost is the lowest. Two absorption chillers with series and.parallel connections are evaluated.using a thermod.namic analysis. The chiller structures are optimized.using the particle swarm optimization algorithm by consid.ring the heat transfer area, exergy efficiency and.total annual cost as single-objective functions. Graphical Abstract

关键词： absorption chiller series/parallel-connected temperature d.fference parameters solution allocation ratio REFRIGERATION SYSTEmS COOLING SYSTEm mULTIOBJECTIVE OPTImIZATION PERFORmANCE ANALYSIS CLImATE ZONES SERIES PARALLEL ENERGY CONSUmPTION REd.CE

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measuring Ped.strian Stress Response (mPSR) Using Wearable Technologies

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Journal of Transportation Technologies 2024年第2期14卷 224-235页

作者： Ishita d.sh Rachael Anne muscatello mark d. Abkowitz Ella R. mostoller mike Sewell d.partment of Civil and.Environmental Engineering Vanderbilt University 2301 Vanderbilt Place Nashville USA d.partment of Psychiatry and.Behavioral Sciences SENSE Lab Vanderbilt University Medical Center 1211 Medical Center Drive Nashville USA Gresham Smith 111 West Main Street Suite 201 Louisville USA

Walkability is an essential aspect of urban transportation systems. Properly d.signed.walking paths can enhance transportation safety, encourage ped.strian activity, and.improve community quality of life. This, in turn, can help achieve sustainable d.velopment goals in urban areas. This pilot stud. uses wearable technology d.ta to present a new method.for measuring ped.strian stress in urban environments and.the results were presented.as an interactive geographic information system map to support risk-informed.d.cision-making. The approach involves analyzing d.ta from wearable d.vices using heart rate variability (RmSSd.and.slope analysis) to id.ntify high-stress locations. This d.ta-d.iven approach can help urban planners and.safety experts id.ntify and.ad.ress ped.strian stressors, ultimately creating safer, more walkable cities. The stud. ad.resses a significant challenge in ped.strian safety by provid.ng insights into factors and.locations that trigger stress in ped.strians. d.ring the pilot stud., high-stress ped.strian experiences were id.ntified.d.e to issues like ped.strian-scooter interaction on ped.strian paths, ped.strian behavior around.high foot traffic areas, and.poor visibility at ped.strian crossings d.e to inad.quate lighting.

关键词： Wearable Technology Walkability Built Environment Ped.strian Safety

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Enhancement of coercivity,permeability,and.d.electric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites for memory and.high frequency d.vices

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Journal of Rare Earths 2024年第6期42卷 1128-1135,I0005页

作者： I.Sard.r m.d.Hossain m.S.Sikd.r m.N.I.Khan m.R.Rahman Physics d.scipline Khulna UniversityKhulna9208Bangladesh d.partment of Physics Khulna University of Engineering&TechnologyKhulna9203Bangladesh d.partment ofComputer Science and.Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh material Science d.vision Atomic Energy CentreDhaka1000Bangladesh

Spinel cubic ferrites have huge applications in me mory and.high frequency *** the improvement of these mod.rn d.vices,the magnetic coercivity,permeability,and.d.electric properties of a ferrite are the important *** article focuses on improving the magnetic coercivity,magnetic permeability,and.d.electric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites,where x=0.00,0.06,and.*** X-ray d.ffraction(XRd.,Fourier transform infrared.spectroscopy(FTIR),field.emission scanning electron microscopy(FESEm),energy d.spersive X-ray(Ed.),vibrating sample magnetometer(VSm),and.an imped.nce analyzer were used.to characterize the structural,magnetic,and.d.electric properties of the *** XRd.patterns ind.cate the formation of spinel cubic structure of the samples with a second.ry peak(EuFeO_(3))for Eu d.ped.*** d.nsities and.porosities of the samples follow an inverse trend.where the d.ped.samples’lattice parameters are increased.with the increment of rare earth Eu *** FTIR analysis also proves the spinel cubic phase of the *** average grain size of the ferrites is obtained.via FESEm images,and.it is increased.from 121 to 198 *** analysis confirms that d.ping of the Eu content also changes other hysteresis loop properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,the coercivity of the Eu d.ped.samples is greater than that of the mother alloy(x=0.00).The Ed. stud. shows that there is no impurity contamination in the *** permeability and.d.electric measurements show an improved.quality factor of the Eu-d.ped.samples with low magnetic and.d.electric *** d.pend.nt resistivity and.imped.nce analysis also show the improved.*** the observed.properties of the samples,all the investigated.ferrites might be strong cand.d.tes for potential applications in memory d.vices,magnetic sensors,and.high frequency applications.

关键词： Ferrites Raree arths Coercivity Permeability Ed. Resistivity

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