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Acta metallurgica Sinica(English letters) 2018年第10期31卷 1038-1048页

作者： ba li Qing-You liu Shu-Jun Jia Yi Ren Bing Wang Central Iron and Steel Research Institute Beijing 100081China Iron and Steel Research Institute Ansteel Group Co. Ltd.Anshan 114009 China

In this study, the effect of pre-deformation at recrystallization and non-recrystallization zone on the grain ultrafining by the subsequent intercritical deformation （ID） was investigated on low-carbon microalloyed steel. The results showed that ultrafine grain microstructure with an average size of - 1.0 μm was fabricated through pre-deformation in the recrys- tallization zone followed by ID. When pre-deformed at the non-recrystallization zone prior to ID, the grain size increased to 1.6 μm with a heterogeneous distribution along with the well-developed dynamic recovery of ferrite. The grain ultrafining mechanism was attributed to the combined action of the deformation-induced ferrite transformation and the continuous dynamic recrystallization. In particular, the continuous dynamic recrystallization process during ID occurred on the pro-eutectoid ferrite as a result of the subgrain rotation mechanism and the absorbing dislocations mechanism.

关键词： low-carbon microalloyed steels Intercritical deformation Ultrafine grain Continuous dynamic recrystallization Deformation-induced ferrite transformation

Faddeev calculations on l.m.da hypertriton with potentials from Gel'fand–levitan–marchenko theory

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Communications in Theoretical Physics 2020年第10期72卷 119-124页

作者： E F meoto m l lekala Department of Physics University of South AfricaPrivate Bag X61710 JohannesburgSouth Africa

Effective l.m.da-proton and l.m.da-neutron potentials,restored from theoretical scattering phases through Gel'fand–levitan–marchenko theory,are tested on a l.m.da hypertriton through three-body *** l.m.da hypertriton is treated as a three-body system consisting of l.m.da-proton,l.m.da-neutron and proton–neutron *** energy and root mean square radius are computed for the ground state of l.m.da hypertriton(Jp=12+).In coordinate space,the dynamics of the system is described using a set of coupled hyperradial equations obtained from the differential Faddeev *** solving the eigenvalue probl.m.derived from this set of coupled hyperradial equations,the binding energy and root mean square matter radius computed are found to be-2.462 meV and 7.00 fm,*** potentials are also shown to display a satisfactory convergence behaviour.

关键词： l.m.da-nucleon potential l.m.da-proton potential l.m.da-neutron potential l.m.da hypertriton Faddeev equations hyperspherical.m.thod

The impact of alpha-fetoprotein(AFP),child-turcotte-pugh(CTP)score and disease staging on the survival of hepatocellular carcinoma(HCC)patients:a retrospective cohort from single oncology center

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Oncology Research 2025年第1期33卷 149-160页

作者： NASSER mUllA YOUSEF KATIB ASIm m.AlmUGHAmSI DUAA S.AlKHAYAT mOHAmED mOSAAD SAmIR T.AlFOTIH RAWAN AlAOFI Department of Internal.m.dicine Faculty of MedicineTaibah UniversityMadinah42278Saudi Arabia Department of Radiology Faculty of MedicineTaibah UniversityMadinah42278Saudi Arabia Department of Surgery Faculty of MedicineTaibah UniversityMadinah42278Saudi Arabia Department of Endemic and Infectious Diseases Suez Canal UniversityIsmailia41522Egypt King Salman bin Abdulaziz medical City Madinah42311Saudi Arabia Prince mohammed Bin Abdulaziz Hospital Madinah41511Saudi Arabia

background:Hepatocellular carcinoma(HCC)is the most common cause of cancer-related death in Saudi *** study aimed to investigate the patterns of HCC and the effect of TNm staging,Alfa-fetoprotein(AFP),and Child-Turcotte Pugh(CTP)on patients’overall survival(OS).methods:A retrospective analysis was conducted on 43 HCC patients at a single oncology center in Saudi Arabia from 2015 to *** patients had to fulfill one of the following criteria:(a)a liver lesion reported as definitive HCC on dynamic imaging and/or(b)a biopsy-confirmed ***:The mean patient age of all HCC cases was 66.8 with a male-to-female ratio of 3.3:*** patients were stratified into two groups:viral HCC(n=22,51%)and non-viral HCC(n=21,49%).Among viral-HCC patients,55%were due to HBV and 45%due to *** was diagnosed in 79%of *** and sex did not significantly statistically differ in OS among viral and non-viral HCC patients(p-value>0.05).About 65%of patients had tumor size>5 cm during the diagnosis,with a significant statistical difference in OS(p-value=0.027).AFP was>400 ng/ml in 45%of the *** was a statistically significant difference in the OS in terms of AFP levels(p-value=0.021).A statistically significant difference was also observed between the CTP score and OS(p-value=0.02).CTP class B had the longest *** was the most common treatment provided to HCC patients followed by sorafenib *** was a significant statistical difference in OS among viral and non-viral HCC patients(p-value=0.008).Conclusions:The most common predictors for OS were the underlying cause of HCC,AFP,and tumor *** having non-viral etiology,a tumor size>5 cm,an AFP>400 ng/ml,and a CTP score class C were all negatively associated with OS.

关键词： Hepatocellular carcinoma Pattern Alpha-fetoprotein(AFP) Child-turcotte-pugh Progression free survival

Increased syndecan-1 and glypican-3 predict poor perinatal outcome and treatment resistance in intrahepatic cholestasis

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Hepatobiliary & Pancreatic Diseases International 2020年第3期19卷 271-276页

作者： basak Gümüs Güler Sibel Ozler Department of Health Sciences Istinye UniversityIstanbul 34010Turkey Department of Perinatology Selcuk University Faculty of MedicineKonya 42130Turkey

background:Intrahepatic cholestasis of pregnancy(ICP)increases the risk of adverse pregnancy *** study aimed to explore the association between serum syndecan-1 and glypican-3 levels and the adverse perinatal outcome as well as the responses to the treatment of ursodeoxycholic acid(UDCA).methods:This prospective,case control study included 88 pregnant women(44 women with ICP and 44 healthy controls).The primary end points were the perinatal outcome and the response to UDCA therapy.A logistic regression model was used to identify the independent risk factors of adverse pregnancy outcomes and reduced response to UDCA ***:Women with ICP had significantly higher serum syndecan-1(1.27±0.36 ng/m l vs.0.98±0.50 ng/m l;P=0.003),glypican-3(1.78±0.13 ng/m l vs.1.69±0.16 ng/m l;P=0.004),AST(128.59±1.44 vs.13.29±1.32 U/l;PlT(129.84±1.53 vs.8.00±3.67 U/l;Plevels compared with the *** increased levels of syndecan-1(OR=4.715,95%CI:1.554–14.310;P=0.006),glypican-3(OR=8.465,95%CI:3.372–21.248;P=0.007),AlT(OR=1.382,95%CI:1.131–1.690;P=0.002),and postprandial bile acid(Pba)(OR=3.392,95%CI:1.003–12.869;P=0.026)were correlated to *** adverse neonatal outcome was related to increased glypican-3(OR=4.275,95%CI:2.726–5.635;P=0.039),and Pba(OR=3.026,95%CI:1.069–13.569;P=0.037).Increases of syndecan-1(OR=7.464,95%CI:2.130–26.153,P=0.017)and glypican-3(OR=6.194,95%CI:2.951–13.002;P=0.025)were the risk factors of decreased response to UDCA ***:Syndecan-1 and glypican-3 might be powerful determinants in predicting adverse perinatal outcome in patients with ICP,and they can be used to predict the response to the UDCA treatment.

关键词： Intrahepatic cholestasis of pregnancy Syndecan-1 Glypican-3 Adverse perinatal outcome Response to UDCA

microhabitat characteristics related to seasonal roost switching:implications from a threatened and introduced cockatoo species in an urban landscape

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Avian Research 2021年第3期12卷 317-326页

作者： Sifeng Wang l.m.Chu School of life Sciences The Chinese University of Hong KongShatinNTHong Kong SARChina

background:Communal roosting is a common avian social behaviour,which potentially provides foraging benefits,predation avoidance or thermoregulation in *** identify the crucial environmental factors associated with roost site selection,most studies have focused on the comparison of physical characteristics between roosts and ***,the differences among roosts have usually been neglected and the causes of roost switching have seldom been ***:To explore the variations among roost sites and assess the most influential environmental factors related to seasonal roost switching,we conducted a 105-day observation on an introduced population of critically endan-gered Yellow-crested Cockatoo(Cacatua sulphurea)in an urban environment in Hong Kong from 2014 to *** identified seven roost sites that were occupied in different seasons and then measured their microhabitat character-istics in terms of land use types,human disturbance and microcl.m.te *** quantify these differences,we used Pearson’s chi-squared test,partial least squares determinant analysis(PlS-DA)and one-way repeated measures ANOVA,***:Our results distinguished roost sites occupied in three seasons,***,summer and winter roosts,using several.m.crohabitat *** land use types were significantly associated with roosts,where spring roosts were usually located in tree-dominated areas,which are the major feeding *** discriminant analysis on human disturbance variables indicated that summer roosts were positively associated with night *** microhabitat temperatures of winter roosts were significantly higher than those of most other roosts on cold ***:The results highlighted significant variations among roosts,and seasonal roost switching was likely driven by specific microhabitat characteristics of each roost site,such as *** also helps us understand the behavioural adaptation of birds to

关键词： Communal roosting Human disturbance land use microcl.m.te Seasonal variation

On the detection of closed orbits in time-dependent systems by using double-pulse lasers

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Communications in Theoretical Physics 2020年第9期72卷 111-117页

作者： S U Khan m l Du Institute of Theoretical Physics Chinese Academy of Sciences.Beijing 100190China University of Chinese Academy of Sciences Beijing100049China

In the photodetachment of atoms or negative ions by a double-pulse laser, the first pulse of the double-pulse laser generates waves and the delayed second pulse may detect them. The phenomenon of the excitation and detection of waves by a double-pulse laser can be used to identify the closed orbits in the system. We demonstrate this phenomenon with a negative hydrogen ion(H^-) by analyzing the total population excited by a double-pulse laser in a timedependent field for different physical parameters. By analyzing the total excited population using a double-pulse laser, we can uncover all the closed orbits existing in the system. We demonstrate that this can be realized by scanning the first pulse position and the time delay between the two pulses.

关键词： double-pulse laser detection of closed orbits photodetachment spectra time-dependent systems

Guava extract (Psidium guajava) alters the labelling of blood constituents with technetium-99m

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第6期7卷 429-435页

作者： ABREU P.R.C. AlmEIDA m.C. BERNARDO R.m. BERNARDO l.C. BRITO l.C. GARCIA E.A.C. FONSECA A.S. BERNARDO-FIlHO m. Department of Biophysics and Biometry Institute of Biology Roberto Alcantara Gomes University of Estate of Rio de Janeiro Rio de Janeiro 20551030 Brazil Department of Physiology Biological Sciences and Health Center Federal University of Sergipe So Cristóvo Sergipe 49100000 Brazil Department of Pharmacology and Psychobiology Institute of Biology Roberto Alcantara Gomes University of Estate of Rio de Janeiro Rio de Janeiro 20551030 Brazil

Psidium guajava (guava) leaf is a phytotherapic used in folk medicine to treat gastrointestinal and respiratory dis-turbances and is used as anti-infl.m.atory medicine. In nuclear medicine, blood constituents (BC) are labelled with techne-tium-99m (99mTc) and used to image procedures. However, data have demonstrated that synthetic or natural drugs could modify the labelling of BC with 99mTc. The aim of this work was to evaluate the effects of aqueous extract of guava leaves on the labelling of BC with 99mTc. Blood samples of Wistar rats were incubated with different concentrations of guava extract and labelled with 99mTc after the percentage of incorporated radioactivity (%ATI) in BC was determined. The results suggest that aqueous guava extract could present antioxidant action and/or alters the membrane structures involved in ion transport into cells, thus decreasing the radiolabelling of BC with 99mTc. The data showed significant (Plteration of ATI in BC from blood incubated with guava extract.

关键词： Antioxidant Blood constituents Psidium guajava Technetium-99m

Effect of Orientation of Fibers and Holes on the Radial Strain Amplification of Campaniform sensilla

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Journal of Bionic Engineering 2010年第4期7卷 314-320页

作者： Nickolas l.m.mani Carlo menon mENRVA Research Group School of Engineering ScienceSimon Fraser University mENRVA Research Group School of Engineering Science Simon Fraser University

In this paper,a structural analysis is performed to gain insights on the synergistic mechanical amplification effect thatCampaniform sensilla have when combined in an array *** order to simplify the analysis performed in this prel.m.naryinvestigation,an array of four holes in a single orthotropic l.m.na is ***,a Finite El.m.nt method(FEm) analysis is performed to discretely assess the influence that different geometrical parameters have on the mechanical.m.lification properties of the ***,an artificial neural network is used to obtain an approximated multi-dimensionalcontinuous function,which models the relationship between the geometrical parameters and the amplification properties of ***,an optimization is performed to identify the geometrical parameters yielding the maximum mechanical ***,results are validated with an additional FEm simulation performed by varying geometrical parameters in theneighborhood of the identified optimal *** method proposed in this paper can be fully automated and used to solvea wide range of optimization probl.m. aimed at identifying optimal configurations of strain sensors inspired by Campaniformsensilla.

关键词： Campaniform sensillum strain sensor FEm ANN optimization

Effect of weak measurement on quantum correlations

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Chinese Physics B 2020年第11期29卷 174-181页

作者： l Jebli m Amzioug S E Ennadifi N Habiballah m Nassik EPTHE Department of PhysicsFaculty of SciencesIbn Zohr UniversityAgadirMorocco Faculty of Applied Sciences Ibn Zohr UniversityAit-MelloulMorocco Abdus Sal.m.International Center for Theoretical Physics Strada Costiera11 I-34151TriesteItaly lHEP-mS Department of PhysicsFaculty of Science Mohammed V UniversityRabatMorocco Department of Physics Ecole Normale Sup´eieure(ENS)Mohammed V UniversityRabatMorocco

We investigate the local quantum uncertainty(lQU)in weak *** expression of weak lQU is explicitly ***,we consider some cases of three special X states,Werner state,circulant two-qubit states,and Heisenberg model via l... 详细信息

关键词： local quantum uncertainty weak measurement weak local quantum uncertainty