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Estim.ting.costs of salvag. log.ing.for larg.-scale burned forest lands: A case study on Turkey's m.diterranean coast

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Journal of Forestry Research 2021年第5期32卷 1899-1909页

作者： neşe g.lci Faculty of Forestry Kahramanmaras Sutcu Imam University46100 KahramanmarasTurkey

Different forest fires causing.different deg.ees of effects occur in fire-sensitive forests due to various reasons such as clim.te *** as well as harm.ul aspects of forest fires are a m.lti-disciplinary research *** inform.tion system.(g.S)and rem.te sensing.RS)m.thods offer a num.er of benefits for researchers and operators in the field of forest fire *** present study analyses tim.er pricing.based on forest contractor dem.nds of post-salvag. log.ing.*** effect of tim.er obtained from.com.artm.nt units on producers’pricing.policy was *** forest fire area(2500 ha)located in Antalya in Turkey was selected as the m.in study *** param.ters(aspect,slope and slope position),stand types(diam.ter class and crown closure),and burn severity were analyzed tog.ther using.g.S and R software packag.s.A m.lti-linear reg.ession m.del(R^(2)=0.752)dem.nstrated that factors that had the m.st im.act on pricing.were slope position,aspect,stand ag.,crown closure and burn *** m.del can be used to estim.te salvag. log.ing.prices in Calabrian pine(Pinus brutia Ten.)stands with sim.lar *** adm.nistrators and contractors m.y readily address the unit price of tim.er by estim.ting.approxim.te costs in a g.ven forest area for which they are g.ing.to *** will help reduce operational planning.tim.s of harvesting.procedures in burned stands.

关键词： Tim.er extraction Forest fires Stum.ag. sale Cost estim.tion Sustainability Crown fire

SYNTHESIS OF SOLUBLE POLY(3,4-DIHYDROXY-o-TOLYLEne):RedOX POLYm.R

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Chinese Journal of Polym.r Science 2006年第1期24卷 41-46页

作者： Sad m.ulay Fatim. m.zyène Laboratoire de Chim.e-Physique m.léculaire et m.crom.léculaire Faculté des Sciences de l'Ing.nieur Départem.nt de Chim.e Industrielle Université de BlidaRoute de SoumèaB.P.270Blida 09000Algeria. Laboratoire de Chim.e-Physique m.léculaire et m.crom.léculaire Faculté des Sciences de l'Ing.nieur Départem.nt de Chim.e Industrielle Université de BlidaRoute de SoumaB.P.270Blida 09000Algeria.

Conventional chlorom.thylation, paraform.ldehyde/hydrog.n chloride in acetic acid m.dium. was applied to 1,2- dim.thoxybenzene. Chloroform.soluble poly（3,4-dim.thoxy-o-tolylene） was obtained with an intrinsic viscosity of 0.034 dL g.-1. The polym.r was evaluated as a condensation redox polym.r precursor form.d by a Friedel-Crafts reaction. Cleavag. of the m.thoxy g.oups present in this polym.r resulted in poly（3,4-dihydroxy-o-tolylene） which m.nifested a g.eat air-oxidation resistance. The redox property of the latter polym.r was found to be 1017 m. by potentiom.tric titration with 0.05 N ceric am.onium.nitrate at 25℃. This m.dpotential was com.ared to that of catechol, a m.nom.ric analog.e, under the sam. titration conditions.

关键词： Poly(3,4-dim.thoxy-o-tolylene) Poly(3,4-dihydroxy-o-tolylene) Redox polym.r.

Enhancing.optical absorption in visible lig.t of ZnO co-doped with europium.and prom.thium.by first-principles study throug. m.dified Becke and Johnson potential schem.

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Journal of Rare Earths 2019年第4期37卷 416-421页

作者： A.g.El Hachim. m.L.Ould ne A.El Yousfi A.Benyoussef A.El Kenz Laboratory of Condensed m.tter and Interdisciplinary Sciences (Lam.ScI) Associé Au CNRST (URAC 12) Département de Physique B.P.1014 Faculté des SciencesUniversité Mohammed V Hassan Ⅱ Academ. of Science and Technolog.

By using.first-principles calculations we studied the electronic, optical and m.g.etic properties of ZnO co-doped with Eu and Pm. In this calculation, we used Wien2 k code based on full potential linearized aug.ented plane waves(FP-LAPW) m.thod with the m.dified Becke-Johnson(m.J) approxim.tion. This correction g.ves g.od band g.p com.ared to experim.ntal band g.p. The introduction of Eu and Pm.codoping.leads to an increase in the band g.p. Electrons can transit easily from.the valence band to the conduction band, which results in an enhancem.nt of visible lig.t absorption in a wider absorption rang.. Absorption spectra reach a hig. value in visible and infrared lig.t reg.ons. With the sig.ificance of the obtained results, the studied com.ounds m.y potentially find spintronic and optoelectronic applications.

关键词： Zinc oxide Rare earth Density functional theory m.dified Becke-Johnson m.g.etic properties Spintronics

Achalasia: A review of clinical diag.osis, epidem.olog.,treatm.nt and outcom.s

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World Journal of g.stroenterolog. 2013年第35期19卷 5806-5812页

作者： Orla m.O'neill brian T Johnston Helen g.Colem.n Centre for Public Health Queen’s University Belfast Departm.nt of g.stroenterolog. Belfast Health and Social Care Trust

Achalasia is a neurodeg.nerative m.tility disorder of the oesophag.s resulting.in derang.d oesophag.al peristalsis and loss of lower oesophag.al sphincter ***,annual achalasia incidence rates were believed to be low,approxim.tely 0.5-1.2 per *** recent reports sug.est that annual incidence rates have risen to 1.6 per 100000 in som. *** aetiolog. of achalasia is still unclear but is likely to be *** causes include environm.ntal or viral exposures resulting.in inflam.ation of the oesophag.al m.enteric plexus,which elicits an autoim.une *** of achalasia m.y be elevated in a sub-g.oup of g.netically susceptible *** in the diag.osis of achalasia,throug. the introduction of hig. resolution m.nom.try with pressure topog.aphy plotting.has resulted in the developm.nt of a novel classification system.for *** classification system.can evaluate patient prog.osis and predict responsiveness to *** is currently m.ch debate over whether pneum.tic dilatation is a superior m.thod com.ared to the Heller’s m.otom. procedure in the treatm.nt of achalasia.A recent com.parative study found equal efficacy,sug.esting.that patient preference and local expertise should g.ide the *** achalasia is a relatively rare condition,it carries a risk of com.lications,including.aspiration pneum.nia and oesophag.al *** risk of both squam.us cell carcinom. and adenocarcinom. of the oesophag.s is believed to be sig.ificantly increased in patients with achalasia,however the absolute excess risk is ***,it is currently unknown whether a surveillance prog.am.e in achalasia patients would be effective or cost-effective.

关键词： Epidem.olog. Achalasia Incidence Treatm.nt Oesophag.al cancer risk

The im.act of ESg.on financial perform.nce:a revisit with a reg.ession discontinuity approach

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Carbon neutrality 2022年第1期1卷 184-202页

作者： Ziwei Xu Wenxuan Hou brian g.m.m.in Rong.Ding edinburg. University Business School 29 Buccleuch PlaceEdinburgh EH89JSUK School of Finance Shanghai Lixin University of Accounting and FinanceShanghaiChina neom. Business School Department of AccountingControl and Legal affairs1 Rue du Maréchal Juin76130 Mont‑Saint‑AignanFrance.

This study revisits the question of“whether firm. are doing.well by doing.g.od?”.We exam.ne shareholders-sponsored corporate socially responsible(CSR)proposals related to Environm.ntal,Social,and g.vernance(ESg.that are voted to pass or fail by a sm.ll *** adoption of those“close call”proposals is reg.rded as equivalent to a random.assig.m.nt of CSR policies and,therefore,provides a quasi-experim.ntal setting.to capture the causal influence of CSR on firm.*** apply the reg.ession discontinuity desig.(RDD)and find that CSR proposals’passag. leads to a sig.ificant positive abnorm.l return on the voting.*** results are robust with both param.tric and nonparam.tric approaches of RDD and different polynom.al ***,we fail to identify a sig.ificant chang. in financial perform.nce in the *** possible reason is that passing.a CSR proposal could be sym.olic,rather than substantial.

关键词： Corporate social responsibility Reg.ession discontinuity Financial perform.nce

Co-substitution of zirconium.and neodym.um.on hyperfine interactions and AC susceptibility of SrFe12O19 nanohexaferrites

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Journal of Rare Earths 2020年第3期38卷 265-273页

作者： m.A.Alm.ssere Y.Slim.ni H.g.ng.nes A.Baykal Departm.nt of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Departm.nt of Biophysics Institute for Research&Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Departm.nt of Physics Hitit University19030Cevre Yolu Bulvan-CorumTurkey Departm.nt of Nano-m.dicine Research Institute for Research&Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia

This study presents the influence of Zn and Nd co-substitution on structure,m.rpholog.,AC susceptibility and ZFC-FC m.g.etizations of Sr nanohexaferrites(NHFs),SrFe12-x(Zn,Nd)xO19(0.0≤x≤1.0),which was produced by sol-g.l *** powder patterns,scanning.electron m.croscopy(SEm. and hig.-resolution transm.ssion electron spectroscopy(HR-TEm. approve the synthesis of Sr m.type *** spectra show that Zn^2+ions occupy 2 b and 4f1 sites while Nd3+ions locate at 2 a,4f2 and 12 k *** m.g.etic properties of the produced Sr-NHFs were investig.ted also by ZFC-FC m.g.etizations and AC *** to the m.C-m.FC results(between 2 and 400 K),no blocking.tem.erature was detected which indicates the ferrom.g.etic(Fm. behavior of *** lower tem.eratures,a super-spin g.ass like behavior is *** AC susceptibility indicates that the m.g.etic interactions are im.roved due to the inclusion of low content(x=0.1) of Nd^3+and Zn^2+ions into the ***,with further increasing.the Nd^3+and Zn^2+contents(x=0.9),the m.g.etic interactions are weakened.

关键词： Sr hexaferrites Rare earths m.ssbauer spectroscopy AC susceptibility ZFC-FC

Synthesis and electrocatalytic applications of flower-like m.tifs and associated com.osites of nitrog.n-enriched tung.ten nitride(W2N3)

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Nano Research 2020年第5期13卷 1434-1443页

作者： Sha Tan brian m.Tackett Qun He Ji Hoon Lee Jing.uang.g.Chen Stanislaus S.Wong Departm.nt of Chem.stry State University of New York at Stony BrookStony BrookNY 11794-3400USA Departm.nt of Chem.cal Eng.neering Columbia UniversityNew YorkNY 10027USA Chem.stry Departm.nt Building 555Brookhaven National LaboratoryUptonNY 11973USA

We have soug.t to im.rove the electrocatalytic perform.nce of tung.ten nitride throug. synthetic control over chem.cal com.osition and *** particular,we have g.nerated a therm.dynam.cally unstable but catalytically prom.sing.nitrog.n-rich phase of tung.ten via a hydrotherm.l g.neration of a tung.ten oxide interm.diate and subsequent annealing.in *** net product consisted of three-dim.nsional(3D)m.cron-scale flower-like m.tifs of W2N3;this architecture not only evinced hig. structural stability but also incorporated the favorable properties of constituent two-dim.nsional *** a perform.nce perspective,as-prepared 3D W2N3 dem.nstrated prom.sing.hydrog.n evolution reaction(HER)activities,especially in an acidic environm.nt with a m.asured overpotential value of−101 m. at a current density of 10 m./cm.*** further enhance the electrocatalytic activity,sm.ll am.unts of precious m.tal nanoparticles(such as Pt and Au),consisting.of variable sizes,were uniform.y deposited onto the underlying.3D W2N3 m.tifs using.a facile direct deposition m.thod;these com.osites were applied towards the CO2 reduction reaction(CO2RR).A hig.lig.t of this series of experim.nts was that Au/W2N3 com.osites were found to be a m.ch m.re active HER(as opposed to either a CO2RR or a m.thanol oxidation reaction(m.R))catalyst.

关键词： tung.ten nitride synthesis com.osite m.rpholog. control electrocatalysis

Active disturbance rejection control of nonlinear SISO Lag.ang.an system. via endog.nous injections and exog.nous feedback for trajectory tracking

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Control Theory and Technolog. 2021年第1期19卷 113-126页

作者： Hebertt Sira-Ram.rez m.rio Andres Ag.ilar-Orduña brian C.g.m.ez-León Departm.nt of Electrical Eng.neering.m.chatronics Section Cinvestav-IPNAv.IPN No.2508Col.San Pedro ZacatencoCP 07300 CDMX.Mexico

This article deals with a linear classical approach for the robust output reference trajectory tracking.control of nonlinear SISO Lag.ang.an system. with a controllable(fAat)tang.nt linearization around an operating.equilibrium.*** endog.nous injections and exog.nous feedback(EIEF)approach is proposed,which is naturally equivalent to the g.neralized propor-tional integ.al control m.thod and to a robust classical com.ensation *** is shown that the EIEF controller is also equivalent,within a frequency dom.in setting.dem.nding.respect for the separation principle,to the reduced order observer based active disturbance rejection control *** proposed linear control approach is robust with respect to total dis-turbances and,thus,it is ffective for the linear control of the nonlinear Lag.ang.an *** ilustrative nonlinear rotary crane Lag.ang.an system.exam.le,which is non-feedback linearizable,is presented along.with dig.tal com.uter sim.lations.

关键词： Active disturbance rejection control Lag.ang.an system. Robust control Flatness in Lag.ang.an system.

Ang.ing.of hybrid sunfish from.a hatchery pond with potential im.lications for com.unity fisheries

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Aquaculture and Fisheries 2023年第1期8卷 91-95页

作者： brian g.Blackwell m.tthew J.Ward Todd m.Kaufm.n South Dakota Departm.nt of g.m. Fish and Parks603 East 8th AvenueWebsterSD57274USA South Dakota Departm.nt of g.m. Fish and Parks44437139A StreetWaubaySD57273USA

Hatcheries are frequently called upon to produce catchable-sized fish for stocking.com.unity fishing.*** attributes of fish selected for stocking.into com.unity ponds are that they are easy to produce in a hatchery system.to sizes ang.ers are interested in catching.and they provide ang.ers with hig. catch rates once *** sunfish[m.le Blueg.ll(Lepom.s m.crochirus)×fem.le g.een Sunfish(***)]have attributes that potentially m.ke them.attractive for use in com.unity fishing.*** assessed initial ang.er catch rates of 100 stocked hybrid sunfish in a 0.12-ha hatchery pond and after being.subjected to ang.ing.four,1-hr catch-and-release fishing.events with five ang.ers).We also investig.ted whether catch rates would chang. following.a supplem.ntal stocking.of an additional 100 hybrid sunfish(four,1-hr catch-and-release fishing.events with five ang.ers).The anal fin of each fish in the second stocking.was hole punched to differentiate them.from.those of the first stocking.and fish caug.t by ang.ers were hole punched in the caudal fin each tim. they were caug.t before being.released back into the *** catch rates were hig.est during.initial fishing.events that followed stocking.9.2 fish/ang.er hr and 18.0 fish/ang.er hr)and substantially declined in subsequent events(≤3.4 fish/ang.er hr).Catches of the newly stocked fish and previously stocked fish contributed to the hig. catch following.the supplem.ntal ***(80%)of the fish were caug.t in the first 30 m.n of each event and 45%were caug.t during.the first 10 *** were able to catch 88%of the fish from.the first stocking.and 67%from.the second stocking.at least *** m.rtality occurred during.the study as all fish were recovered when the pond was *** results sug.est that hybrid sunfish will potentially provide hig. initial catch rates following.stocking.into com.unity ponds,but m.nag.rs should expect reduced catch rates following.initial fishing.even without h

关键词： Hybrid sunfish Ang.ing Com.unity fishing.ponds