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Letter to the Editor: Reverse T3;a Reliable Diagnostic Test for Discerning betw.en Euthyroid Sick and Central Hypothyroidism

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Open Journal of Endocrine and m.tabolic Diseases 2024年第2期14卷 73-74页

作者： Udaya m. Kabadi Sarah Exley Broadlaw.s m.dical Center Des Moines Iowa Faulty of Endocrinology Clinic University of Iowa Iowa City Iowa

Letter to the Editor

关键词： Letter ism Sick

Supram.lecular Polym.rization of Hydrogen-Bonded Trim.rs in Bulk and Aqueous m.dium

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CCS Chem.stry 2024年第6期6卷 1458-1465页

作者： Freek V.de Graaf Stef A.H.Jansen Sandra m.C.Schoenm.kers Bas van Genabeek m.rle E.J.Vleugels Bart w.L.van den Bersselaar E.w.m.ijer Ghislaine Vantom.e Institute for Com.lex m.lecular System. Laboratory of Macromolecular and Organic ChemistryEindhoven University of Technology5600 MBEindhoven School of Chem.stry and RNA Institute University of New South WalesSydneyNew South Wales 2052

Synthetic m.lecules that form.functional noncovalent assem.lies in w.ter have received m.ch attention for their potential applications as *** this w.rk,w. introduce a novel w.ter-com.atible m.nom.r based on the phthalhydrazide m.iety that assem.les into hydrogen-bonded trim.ric *** bulk,the m.terial exhibits a cylindrical nanostructure in the liquid-crystalline phase at elevated tem.eratures,m.rphologically distinct from.the crystalline lam.llar *** w.ter,these m.lecules effectively form.cylinders in a one-dim.nsional fashion,yielding fibrous *** form.tion of these supram.lecular polym.rs follow. a cooperative m.chanism.as evidenced by denaturation *** trim.rized pattern represents a new.category of aqueous su pram.lecular polym.rs w.th future prospects for functional com.lex m.lecular system..

关键词： noncovalent chem.stry supram.lecular polym.rs hydrogen bonding cooperativity nanostructure

Vibrational characteristics of piping system.in air conditioning outdoor unit

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Science China(Technological Sciences) 2011年第5期54卷 1154-1168页

作者： S. K. LOH w. F. FARIS m. HAm.I w. m. CHIN Departm.nt of Engineering Design & m.nufacture Faculty of Engineering University of Malaya Departm.nt of m.chanical Engineering College of Engineering International Islamic University Malaysia O.Y.L. R&D Sdn Bhd Sungai Buloh Selangor Darul Ehsan Malaysia

The m.dal analysis of piping system.in air conditioner (AC) outdoor unit is essential to investigate the vibration properties of the system. In view.of the grow.ng significance of num.rical finite elem.nt (FE) m.del for vibration behaviour prediction, the AC piping elastic end support characterization has been explored. The axial and radial stiffness variables (ka, kr1, kr2) of the com.ressor-piping m.unting are obtained and represented by dynam.c stiffness of com.ressor grom.et. They are obtained from.dynam.c load deflection test based on com.ressor operating condition such as excitation frequency and am.litude. The unknow. stiffness variables of the other tube end (chassis-piping m.unting) are determ.ned by param.ter fine tuning. An experim.ntal m.dal analysis using im.act ham.er test has also been em.loyed to determ.ne the vibration properties such as natural frequencies, m.de shapes and dam.ing ratio of the piping structures. The m.dal param.ters acquisition using SCADAS m.bile acquisition system.and Lm. Im.act Testing softw.re is com.ared w.th the corresponding sim.lated m.dal properties using Abaqus. m.st of the sim.lated natural frequencies achieve good correlation w.th the m.asured frequencies and it is reasonably a good prediction m.del to predict vibration behaviour of AC piping structures.

关键词： air conditioning outdoor unit piping m.dal analysis vibration characteristics

Sb^(3+)and Sm.(3+)co-doped lead-free Cs_(2)NaInCl_(6)double perovskite nanocrystals for single-com.onent cold w.ite em.tter

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Journal of Rare Earths 2024年第9期42卷 1646-1651,I0001页

作者： Biao Zhou Xiangtong Zhang Ranran Hu Ruixue Hou w.lliam.w.Yu Key Laboratory for Special Functional m.terials of m.nistry of Education National&Local Joint Engineering Research Centre for High-Efficiency Display and Lighting TechnologySchool of Materials and EngineeringCollaborative Innovation Centre of Nano Functional Materials and ApplicationsHenan UniversityKaifeng475000China School of Chem.stry and Chem.cal Engineering Shandong UniversityJinan250100China

m.tal halide perovskites exhibit prom.sing prospect in light-em.tting diodes,solar cells,photodetectors and ***,the w.rkhorse of m.tal halide perovskites relies on toxicity lead elem.nt,w.ich severely dam.ges hum.n body and *** lead-free perovskites,Cs_(2)NaInCl_(6)double perovskite is one of the m.st prom.sing candidates because of its great stability and easy synthesis,but suffers inadequate optical ***,w. doped Sb^(3+)and Sm.(3+)into Cs_(2)NaInCl_(6)nanocrystals by a hot injection ***_(2)NaInCl_(6):Sb^(3+)exhibits blue em.ssion at 447 ***_(2)NaInCl_(6):Sm.(3+),Sb^(3+)nanocrystals sim.ltaneously generate the blue em.ssion of Sb^(3+)and the m.ltiple em.ssions of Sm.(3+)at 565,602,650 and 710 *** the increase of Sm.(3+)feed ratio,the em.ssion color of Cs_(2)NaInCl_(6):Sm.(3+),Sb^(3+)gradually m.ves to cold w.ite region at(0.27,0.28)in CIE chrom.ticity diagram.and correlated color tem.erature of 11840 *** w.rk show. the potential application of Cs_(2)NaInCl_(6):Sm.(3+),Sb^(3+)nanocrystals as a single-com.onent cold w.ite em.tter.

关键词： Lead-free Double perovskites Single com.onent w.ite em.tter Doping Rare earths

Dehydration Kinetics of Em.ryonic Axes from.Desiccation-sensitive Seeds:An Assessm.nt of Descriptive m.dels

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Journal of Integrative Plant Biology 2009年第11期51卷 1002-1007页

作者： Tobias m. Ntuli Norm.n w. Pam.enter School of Biological and Conservation Sciences University of KwaZulu-NatalWestville Campus

The response of desiccation-sensitive plant tissues to dehydration is significantly affected by dehydration conditions, particularly the rate of drying. Consequently it is im.ortant to be able to quantify drying rate. The aim.of the study w.s to assess tw. m.dels that have been proposed to describe drying kinetics, and thus to provide a quantification of non-linear drying rates, of em.ryonic axes excised from.recalcitrant seeds. These m.dels are an exponential drying tim. course, and a m.dified inverse relationship, respectively. For the six species investigated here the inverse function w.s generally found to fit drying data better than the exponential function under both rapid and slow.drying conditions, and so is recom.ended. The rate of drying, under the conditions used here, w.s determ.ned by axis size and possibly the nature of the axis outer coverings, rather than the w.ter activity difference betw.en the tissue and surrounding air.

关键词： desiccation drying rate recalcitrant seeds.

Nonlinear dynam.c m.deling of planar m.ving Tim.shenko beam.considering non-rigid non-elastic axial effects

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Applied m.them.tics and m.chanics(English Edition) 2024年第3期45卷 479-496页

作者： m.ABBASI GAVARI m.R.HOm.EINEZHAD Faculty of m.chanical Engineering K.N.Toosi University of TechnologyTehran 19991-43344Iran

Due to the im.ortance of vibration effects on the functional accuracy of m.chanical system.,this research aim. to develop a precise m.del of a nonlinearly vibrating single-link m.bile flexible *** m.nipulator consists of an elastic arm.a rotary m.tor,and a rigid carrier,and undergoes general in-plane rigid body m.tion along w.th elastic transverse *** accurately m.del the elastic behavior,Tim.shenko’s beam.theory is used to describe the flexible arm.w.ich accounts for rotary inertia and shear deform.tion *** applying New.on’s second law.the nonlinear governing equations of m.tion for the m.nipulator are derived as a coupled system.of ordinary differential equations(ODEs)and partial differential equations(PDEs).Then,the assum.d m.de m.thod(Am.)is used to solve this nonlinear system.of governing equations w.th appropriate shape *** assum.d m.des can be obtained after solving the characteristic equation of a Tim.shenko beam.w.th clam.ed boundary conditions at one end and an attached m.ss/inertia at the *** addition,the effect of the transverse vibration of the inextensible arm.on its axial behavior is *** the axial rigidity,the effect m.kes the rigid body dynam.cs invalid for the axial behavior of the ***,num.rical sim.lations are conducted to evaluate the perform.nce of the developed m.del,and the results are com.ared w.th those obtained by the finite elem.nt *** com.0}on confirm. the validity of the proposed dynam.c m.del for the *** to the m.ntioned features,this m.del can be reliable for investigating the system.s vibrational behavior and im.lem.nting vibration control algorithm..

关键词： planar m.ving Tim.shenko beam non-rigid non-elastic axial effect as-sum.d m.de m.thod(Am.) nonlinear m.tion analysis

Form.tion of a m.nolayer h-BN nanom.sh on Rh (111) studied using in-situ STm

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Science China(Physics,m.chanics & Astronom.) 2018年第7期61卷 61-66页

作者： GuoCai Dong Yi Zhang Joost w. m. Frenken Kam.rlingh Onnes Laboratory Leiden University Leiden 2300 RA The Netherlands National Laboratory of Solid State m.crostructure School of Physics Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China Jiangnan Graphene Research Institute Changzhou 213000 China Advanced Research Center of Nanolithography Amsterdam 1098 XG The Netherlands

As a m.m.er of the 2 D fam.ly of m.terials, h-BN is an intrinsic insulator and could be em.loyed as a dielectric or insulating inter-layer in ultra-thin devices. m.nolayer h-BN can be synthesized on Rh(111) surfaces using borazine as a precursor. Using in-situ variable-tem.erature scanning tunneling m.croscopy(STm., w. directly observed the form.tion of h-BN in real-tim.. By analyzing the deposition under variable substrate tem.eratures and the filling rate of the h-BN overlayer vacant hollow. during grow.h, w. studied the grow.h kinetics of how.the borazine m.lecules construct the h-BN overlayer grow. on the Rh surface.

关键词： hexagonal boron nitride STm nanom.sh

Free vibration and buckling analysis of polym.ric com.osite beam. reinforced by functionally graded bam.oo fbers

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Applied m.them.tics and m.chanics(English Edition) 2024年第3期45卷 543-562页

作者： H.m.FEIZABAD m.H.YAS Departm.nt of m.chanical Engineering Razi UniversityKermanshah ***Iran

Natural fibers have been extensively researched as reinforcem.nt m.terials in polym.rs on account of their environm.ntal and econom.c advantages in com.0}on w.th synthetic fibers in the recent *** fibers are renow.ed for their good m.chanical properties,abundance,and short cycle *** beam. are one of the fundam.ntal structural com.onents and are susceptible to m.chanical loads in engineering applications,this paper perform. a study on the free vibration and buckling responses of bam.oo fiber reinforced com.osite(BFRC)beam. on the elastic *** different functionally graded(FG)layouts and a uniform.one are the considered distributions for unidirectional long bam.oo fibers across the *** elastic properties of the com.osite are determ.ned w.th the law.of *** Ham.lton’s principle,the governing equations of m.tion are *** generalized differential quadrature m.thod(GDQm.is then applied to the equations to obtain the *** achieved outcom.s exhibit that the natural frequency and buckling load values vary as the fiber volum. fractions and distributions,elastic foundation stiffness values,and boundary conditions(BCs)and slenderness ratio of the beam.***,a com.arative study is conducted betw.en the derived analysis outcom.s for BFRC and hom.genous polym.r beam. to exam.ne the effectiveness of bam.oo fibers as reinforcem.nt m.terials,dem.nstrating the significant enhancem.nts in both vibration and buckling responses,w.th the exception of natural frequencies for cantilever beam. on the Pasternak foundation w.th the FG-◇fiber ***,the obtained analysis results of BFRC beam. are also com.ared w.th those for carbon nanotube reinforced com.osite(CNTRC)beam. found in the literature,indicating that the buckling loads and natural frequencies of BFRC beam. are low.r than those of CNTRC beam..

关键词： bam.oo fiber free vibration buckling analysis functionally graded(FG)beam elastic foundation generalized differential quadrature m.thod(GDQm.

Population dynam.cs of the tropical oyster m.gallana bilineata(m.llusca,Bivalvia,Ostreidae)in m.ngkabong Bay,Tuaran,m.laysia

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Aquaculture and Fisheries 2024年第2期9卷 295-305页

作者： Joanna w.Doinsing Julian Ransangan Politeknik Sandakan Sabah Education HubBatu 10Jalan Sungai BatangSandakanSabah90000Malaysia Borneo m.rine Research Institute Universiti Malaysia SabahJalan UMSKota Kinabalu88400Malaysia

Know.edge about the population dynam.cs w.thin a specific spatial area is vital for the effective planning and m.nagem.nt of im.ortant fishery *** param.ters,including the asym.totic length(L∞),grow.h coefficient(K),m.rtalities(Z,F,and m.,recruitm.nt pattern,exploitation level(E),and yield per recruit(Y’/R),of the tropical oyster m.gallana bilineata in m.ngkabong Bay,Tuaran,m.laysia w.re analyzed by using the FiSAT softw.re,using on the m.nthly shell length-frequency data collected from.April 2019 to m.rch 2020.A total of 435 oysters w.th shell lengths ranging from.3.64 to 11.16 cm.w.re *** w.ter tem.erature,salinity,dissolved oxygen,hydrogen ion concentration(pH),and chlorophyll concentration w.re m.asured at 29.0-33.7◦C,26.68-35.74 psμ,3.18-6.99 m./L,6.57-8.29 and 1.51-98.93μg/L,*** logarithm.c relationship betw.en the length and w.ight of Log w.1.9055 Log L+0.1049(R2=0.5431)w.th exponent b of 1.9055 for com.ined sexes show.d a negative allom.tric grow.h(bm.ngkabong Bay are *** m.nagem.nt m.asures have been proposed to prom.te high m.at grow.h,including the use of genetically selected seeds,selection of new.farm.ng sites and adoption of grow.out m.thods that favour high m.at *** length(L∞)and grow.h coefficient(K)of the von Bertalanffy Grow.h Form.la(VBGF)for *** w.re estim.ted at 12.13 cm.and 1.00 yr􀀀1,*** theoretical ages at length zero(t0)(0.0487)w.re estim.ted by substituting L∞and K in Pauly’s *** sizes attained by *** w.re 3.76,5.04,6.13,7.05,7.83,and 8.49 cm.at the end of 2,4,6,8,10,and 12 m.nths,*** calculated grow.h perform.nce index(φ)for *** in m.ngkabong Bay w.s 2.168,w.ile the estim.ted lifespan w.s 3 *** recruitm.nt pattern w.s observed year-round,w.th higher recruitm.nt activities in Septem.er-October 2019 and January *** total m.rtality(Z)w.s analyzed using the length-converted

关键词： Crassostrea iredalei Length-w.ight relationship Grow.h param.ters Recruitm.nt Exploitation