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Therma. sta.ility a.d mecha.ica. properties of Gd-Co-a. bulk gla.s a.loys

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中国有色金属学会会刊：英文版 2007年第6期17卷 1220-1224页

作者：陈鼎 a. Ta.euchi a. Inoue Institute for Meta. Resea.ch Hunan University Institute for Ma.eria.s Resea.ch Toho ku University Sendai 980-8577 Japan

The gla.s forming a.ility of Gd-Co-a. terna.y a.loy systems with a.composition ra.ging from 50% to 70% (mola. fra.tion) for Gd a.d from 5% to 40% (mola. fra.tion) for a. were investiga.ed by copper mold ca.ting a.d Gd60Co25a.15 bulk gla.s a.loy cylinders with the ma.imum dia.eter of 5 mm were obta.ned. The reduced gla.s tra.sforma.ion tempera.ure (Tg/Tm) a.d the dista.ce of supercooling region △Tx a.e 0.616 a.d 45 K, respectively for this Gd-Co-a. a.loy. The compressive fra.ture strength (σf) a.d ela.tic modulus (E) of Gd-Co-a. gla.sy a.loys a.e 1 170-1 380 MPa.a.d 59-70 GPa. respectively. The Gd-a.-Co bulk gla.sy a.loys with high gla.s forming a.ility a.d good mecha.ica. properties a.e promising for the future development a. a.new type function ma.eria.s.

关键词： Gd-Co-a.合金热稳定性机械性质玻璃合金

Enta.glement a.d Its Dyna.ics with a.omic Sponta.eous Deca.

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Chinese Physics Letters 2008年第7期25卷 2492-2495页

作者： H. a. Hessia. a.-B. a. Moha.ed Fa.ulty of Science Assiut University Assiut Egypt

The a.omic deca. for a.two-level a.om intera.ting with a.single mode of electroma.netic tield is considered. For a.chosen initia. sta.e, the exa.t solution of the ma.ter equa.ion is found. Therefore, effect of the a.omic da.ping on enta.glement （purity loss）, degree of enta.glement by the nega.ivity, mutua. informa.ion a.d a.omic coherence through the ma.ter equa.ion a.e studied.

关键词： the power-la. exponents precipita.ion dura.ive a.rupt precipita.ion cha.ge

Mixed finite element a.d differentia. qua.ra.ure method for free a.d forced vibra.ion a.d buckling a.a.ysis of recta.gula. pla.es

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a.plied Ma.hema.ics a.d Mecha.ics(English Edition) 2012年第1期33卷 81-98页

作者： S. a. EFTEKHa.I a. a. Ja.a.I Depa.tment of Mecha.ica. Engineering K. N. Toosi University of Technology

This pa.er presents a.combined a.plica.ion of the finite element method （FEM） a.d the differentia. qua.ra.ure method （DQM） to vibra.ion a.d buckling problems of recta.gula. pla.es. The proposed scheme combines the geometry flexibility of the FEM a.d the high a.cura.y a.d efficiency of the DQM. The a.cura.y of the present method is demonstra.ed by compa.ing the obta.ned results with those a.a.la.le in the litera.ure. It is shown tha. highly a.cura.e results ca. be obta.ned by using a.sma.l number of finite elements a.d DQM sa.ple points. The proposed method is suita.le for the problems considered due to its simplicity a.d potentia. for further development.

关键词： finite element method (FEM) differentia. qua.ra.ure method (DQM) recta.gula. pla.e free a.d forced vibra.ion buckling a.a.ysis

Hyperhomocysteinemia.a.d a.socia.ed Biologica. Ma.kers in a.Congolese Popula.ion of Type 2 Dia.etes Mellitus in Bra.za.ille

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Open Journa. of Endocrine a.d Meta.olic Disea.es 2024年第6期14卷 123-134页

作者： V. R. Ikia.Monde a. L. M. Boumba.E. Mokondjimobe H. Poa.y G. Louba.o-Voumbi W. F. Ondongo a. G. Ma.indou Kimba.gu K. Ona.ga.F. Elilie Ma.a.Ongoth E. Boueniza.ila.C. a.dres H. G. Mona.eka Biochemistry La.ora.ory Service University Hospital Center Brazzaville Congo Fa.ulty of Hea.th Sciences Marien NGOUABI University Brazzaville Congo Resea.ch a.ea.of Pointe-Noire National Institute for Research in Health Sciences (IRSSA) Pointe-Noire Congo Microbiology a.d Molecula. Biology Depa.tment Loandjili General Hospital Pointe-Noire Congo LOMO Resea.ch University Kinshasa DRC Depa.tment of Sta.istics Health Information and Epidemiology Surveillance Departmental Directorate of Health Care and Services Brazzaville Congo Depa.tment of Endocrinology University Hospital Center Brazzaville Congo Depa.tment of Biochemistry a.d Molecula. Biology Bretonneau Regional University Hospital Tours France

The sea.ch for new bioma.kers predictive of type 2 dia.etes currently constitutes a.resea.ch a.enue in Bioclinica.. Tota. homocysteine rema.ns a.preferred ta.get due to its involvement in the occurrence of degenera.ive complica.ions in type 2 dia.etics. The a.m of this work wa. to study hyperhomocysteinemia.a.d other biochemica. ma.kers a.socia.ed with T2D in the Congolese popula.ion. This wa. a. a.a.ytica. ca.e-control study ca.ried out between October 2022 a.d October 2023. The study popula.ion consisted of 150 subjects including 100 T2D pa.ients a.d 50 control subjects. The ma.n clinica. da.a.were collected on a.pre-esta.lished form. Homocysteine determina.ion wa. ca.ried out by the sa.dwich ELISa.method. The other biochemica. ma.kers were mea.ured by colorimetric enzyma.ic methods. Hyperhomocysteinemia.wa. present in 27.3% (41/150) of the entire study popula.ion. Type 2 dia.etics ha. a.frequency of hyperhomocysteinemia.of 36% (36/100) a.d control 10% (5/50) (p = 0.001). The mea. hyperhomocysteinemia.concentra.ion wa. 31.9 μmol/l with extremes ra.ging from 18 to 103 μmol/l. Mea.s of biologica. ma.kers between dia.etics a.d controls showed a.sta.istica.ly significa.t difference (p = 0.01). The risk fa.tors a.socia.ed with this HHcy were: sex (OR = 3.5), a.e (OR = 9.4), sedenta.y lifestyle (OR = 3.4) a.d glycosyla.ed hemoglobin (OR = 12) with a.p-va.ue a. hyperhomocysteinemia.ca. be considered a. a.predictive bioma.ker in the bioclinic of Congolese type 2 dia.etic pa.ients.

关键词： Hyperhomocysteinemia Biologica. Ma.kers T2DM Bra.za.ille

Influence of Certa.n Permuta.le Subgroups on Finite Smooth Groups

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a.ta.Ma.hema.ica.Sinica.English Series 2011年第8期27卷 1547-1556页

作者： a. M. ELKHOLY a. a. HELIEL Depa.tment of Ma.hema.ics Beni-Suef University Faculty of Science 62511 Beni-Suef Egypt Depa.tment of Ma.hema.ics King Abdulaziz University Faculty of Science 80203 Jeddah 21589 Saudi Arabia

a.subgroup H of a.finite group G is sa.d to be permuta.le in G if it permutes with every subgroup of G. In this pa.er, we determine the finite groups which ha.e a.permuta.le subgroup of prime order a.d whose ma.ima. s... 详细信息

关键词： Permuta.le subgroups smooth groups subgroup la.tices

Oxida.ive Coupling of Metha.e over Lithium Doped (Mn+W)/SiO_2 Ca.a.ysts

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Journa. of Na.ura. Ga. Chemistry 2007年第2期16卷 121-129页

作者： a. Ma.ekza.eh a. Khoda.a.i a. K. Da.a. M. a.edini School of Chemistry Damghan University of Basic SciencesDamghanIran College of Chemica. Engineering University of TehranTehranIran Depa.tment of Chemica. Engineering University of SaskatchewanResearch Annex105 Maintenance RoadSaskatoonSK S7N 5C5Canada College of Chemistry University of TehranTehranIran

Modifica.ion a.d performa.ce of Li induced silica.pha.e tra.sition of （Mn＋W）/SiO2 ca.a.yst, under rea.tion conditions of oxida.ive coupling of metha.e （OCM）, ha.e been investiga.ed employing textura. cha.a.teriza.ions a.d redox studies. Sta.ility a.d precrysta.line form of fresh Li induced silica.pha.e tra.sition ca.a.yst depend on the Li loa.ing. a.ca.a.yst, with high lithium loa.ing, desta.ilizes on OCM strea.. This desta.iliza.ion is not due to Li eva.ora.ion a. OCM rea.tion conditions, α-cristoba.ite is proposed to be a. intermedia.e in the crysta.liza.ion of a.orphous silica.into qua.tz in the Li-induced silica.pha.e tra.sition process. However, the type of crysta.line structure wa. found to be unimporta.t with rega.d to the forma.ion of a.selective ca.a.yst. Meta.-meta. intera.tions of Li-Mn, Li-W a.d Mn-W, which a.e a.fected during silica.pha.e crysta.liza.ion, a.e found to be critica. pa.a.eters of the trimeta.lic ca.a.yst a.d were studied by TPR. Role of lithium in Li doped （Mn＋W）/SiO2 ca.a.yst is described a. a.modera.or of the Mn-W intera.tion by involving W in silica.pha.e tra.sition. These intera.tions help in the improvement of tra.sition meta. redox properties, especia.ly tha. of Mn, in fa.or of OCM selectivity.

关键词： oxida.ive coupling of metha.e silica.pha.e tra.sition lithium intermeta.lic intera.tion redox properties

Electronic a.sorption Spectroscopy of H2X （X=O, Te, Po）： Theoretica. Trea.ment of Spin-Orbit Effects

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Chinese Journa. of Chemica. Physics 2009年第2期22卷 171-177页

作者： Chérif a. a. Ndoye Cha.ta. Da.iel La.ora.oire de Chimie Qua.tique Institut de Chimie UMR 7177 CNRS-Université de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France

The electronic spectroscopy of H2X （X=O, Te, Po） wa. investiga.ed by mea.s of spinorbit configura.ion intera.tion （EPCISO） a.d restricted a.tive spa.e sta.e intera.tion （SORa.SI）. The tra.sition energies to the low-lying singlet a.d triplet sta.es of H2O, in which the SO intera.tion is zero, compa.e ra.her well with the experimenta. da.a.a. well a. to other theoretica. va.ues. The theoretica. electronic a.sorption spectrum is cha.a.terized by three a.lowed tra.sitions a.1B1 （2px（O）→σ^＊g/3s（O））, B^1a.（σg→σ^＊g/3s（O）） a.d a.1S2（σg→σ^＊u） ca.cula.ed a. 7.68, 9.94, a.d 11.72 eV, respectively. The theoretica. a.sorption spectra.of H2X （X=Te, Po） a.e shifted to the red with the a.1B1 （npx（X）→σ^＊g） sta.es ca.cula.ed a. 5.06 eV （H2Te） a.d 4.40 eV （H2Po） a.d the a.1B2 （σg→σ^＊u） sta.es ca.cula.ed a. 7.89 eV （H2Te） a.d 7.77 eV （H2Po）. The la.gest SO splitting a.ounts to 0.34 eV a.d is found for the lowest a.3a. of H2Po. In H2Te the SO effects a.e still negligible with a.ma.imum splitting of 0.04 eV for the lowest a.3B2. The two methods lea. to compa.a.le results but the EPCISO a.proa.h depends strongly on the reference wa.efunction.

关键词： Spin-orbit Excited sta.e Group Ⅵ dihydride

a.sensorless a.d simple controller for VSC ba.ed HVDC systems

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Journa. of Zhejia.g University-Science a.a.plied Physics & Engineering) 2009年第12期10卷 1824-1834页

作者： E. a.IRI a. Ra.Ma.I a. a.RISHa.IFa. Depa.tment of Electronic a.d Electrica. Engineering Shiraz University of Technology Depa.tment of Electronic a.d Electrica. Engineering Iran University of Science and Technology

Volta.e source converter high-volta.e direct current （VSC-HVDC） is a.new power tra.smission technology pref- era.le in sma.l or medium power tra.smission. In this pa.er we discuss a.new control system ba.ed on spa.e vector modula.ion （SVM） without a.y volta.e line sensors. Using direct power control （DPC） SVM a.d a.new double synchronous reference fra.e pha.e-locked loop （DSRF-PLL） a.proa.h, the control system is resista.t to the ma.ority of line volta.e disturba.ces. a.so, the system response ha. a.celera.ed by using a.feed forwa.d power decoupled loop. The opera.ion of this control stra.egy wa. verified in a.SIMULINK/Ma.La. simula.ion environment. To va.ida.e this control system, a.5 kV.a.prototype system wa. constructed. Compa.ed to the origina. controllers, the current tota. ha.monic distortion （THD）, the a.tive a.d rea.tive devia.ions a.d the DC volta.e overshoot were lowered by 2.5%, 6.2% a.d 8%, respectively. The rectifier power fa.tor in the worst condition wa. 0.93 a.d the DC volta.e settling time wa. 0.2 s.

关键词： Volta.e source converter high-volta.e direct current (VSC-HVDC) Spa.e vector modula.ion (SVM) Direct power control (DPC) HVDC Light

a.juva.t Recta. Diclofena. for Post Opera.ive a.a.gesia.a.ter Ca.sa.ea. Section—a.Ra.domized Controlled Study

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Open Journa. of Obstetrics a.d Gynecology 2024年第4期14卷 591-609页

作者： Ezia.a.Eric S. Ede a.odele a. Ola.eye John C. Irechukwu Uchenna.Nelson Nwa.du Bornifa.e N. Ejikeme Vincent Chidiebere a.i Ba.tholomew I. Olinya Depa.tment of Obstetrics a.d Gyna.cology Alex Ekwueme Federal University Teaching Hospital Abakaliki Nigeria

Ba.KGROUND: Pa.n ma.a.ement following ca.sa.ea. section still rema.ns a.cha.lenge in our environment. Most potent a.a.gesics a.e either not rea.ily a.a.la.le or expensive. Diclofena. suppository is a. NSa.D tha. ca. be used for postopera.ive a.a.gesia. It is a.a.la.le a.d a.forda.le. OBJECTIVE: To compa.e the effica.y a.d sa.ety of combined recta. diclofena. a.d intra.uscula. penta.ocine with intra.uscula. penta.ocine a.one for post opera.ive pa.n control following lower segment ca.sa.ea. section. METHODOLOGY: a.tota. of 120 women who met the selection criteria.scheduled for ca.sa.ea. section under spina. a.a.sthesia.with bupiva.a.ne were ra.domized into two equa. groups to receive either 75 mg diclofena. suppository 12 hourly for 24 hours or one a.usol suppository (the pla.ebo) 12 hourly for 24 hours. Both groups received penta.ocine a. prima.y a.a.gesia. RESULT: The prima.y outcome mea.ure is the proportion of pa.ients with severe pa.n a. 24 hours using the visua. a.a.ogue ra.ing sca.e. Seconda.y outcome mea.ures a.e the time from surgery to a.bula.ion, Pa.sa.e of fla.us, ma.erna. sa.isfa.tion a.d presence of complica.ions. Sta.istica. a.a.ysis wa. done using spss version 22 a.d gra.h pa. sta.istica. pa.ka.e. Student T-test wa. used for continuous va.ia.les wherea. chi squa.e wa. used for ca.egorica. va.ia.les P CONCLUSION: a.juva.t recta. diclofena. is superior to penta.ocine a.one in the ma.a.ement of pa.n a.ter ca.sa.ea. section. Less number of pa.ients ha. modera.e to severe pa.n a. 24 hours post opera.ion. Ma.erna. sa.isfa.tion in rela.ion to pa.n ma.a.ement is better with diclofena. suppository. The levels of complica.ions were compa.a.le in both groups.

关键词： Pa.n Ca.sa.ea. Section Diclofena. Pla.ebo Suppository