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用铝酸钙熔剂进行铁水脱硫影响因素的试验研究

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用铝酸钙熔剂进行铁水脱硫影响因素的试验研究

implications of a new, biostratigraphically well-controlled, radio-isotopic age for the lower Telychian Stage of the Llandovery Series （Lower Silurian, Sweden）

2005中国钢铁年会

作者： Y.d.Yang i.d.Sommerville A.McLean 多伦多大学材料科学与工程部多伦多大学材料科学与工程部多伦多大学材料科学与工程部

铝酸钙熔剂可由各种矿物组成。例如:石灰（或石灰石）和铝土矿（或铝）,并且有不同的形态（如:烧结态或熔态）。当组成适当时,完全熔融情况下在钢和铁水中他们能够达到很好的脱硫效果。但是达到完全熔态的比率变化范围很大,也影响了脱... 详细信息

铝酸钙熔剂可由各种矿物组成。例如:石灰（或石灰石）和铝土矿（或铝）,并且有不同的形态（如:烧结态或熔态）。当组成适当时,完全熔融情况下在钢和铁水中他们能够达到很好的脱硫效果。但是达到完全熔态的比率变化范围很大,也影响了脱硫总速率。因此,用各种各样的原料进行了大量的实验,来测定它们对钢水（尤其是铁水）脱硫的适用性。实验在石墨坩埚中进行,温度范围是1400～1570℃,有些渣剂可以达到极其快的脱硫速度,甚至是在较低温度的铁水处理中。并认为:添加少量的氧化钠或氟石可进一步加快反应的初始速率。此文相当详细地论述了控制脱硫速率的重要因素和该理论应用于工业情况的方法。

关键词：添加料碱度铝酸钙脱硫熔剂铁水钢

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Episodes 2008年第3期31卷 309-314页

作者： Stig M. Bergstrom Funda Ozlem Toprak Warren d. Huff Roland Mundil School of Earth Sciences Division of Geological Sciences The Ohio State University 155 S. Oval Mall Columbus Ohio 43210 USA. department of Geoiogy University of Cincinnati Cincinnati Ohio 45221 USA Berkeley Geochronology Center 2455 Ridge Road Berkeley California 94709 USA.

Radio-isotopic analysis of single zircons from two early Telychian K-bentonites, one of which is among the most widespread Lower Paleozoic volcanic ash falls in north- ern Europe, yields overlapping weighted mean 206pb/238U ages of 438. 7± 1.0 Ma and 437.8 ± 0.5 Ma, respectively. The former age is from zircons of the Osmundsberg K-bentonite from the type locality at Osmundsberget in the Siljan area of central Sweden where it occurs in the lower part of the Spirograptus tur- riculatus Graptolite Zone and in the lower part of the Angochitina longicollis Chitinozoan Zone. Zircons giv- ing the latter age are from a bed previously identified as the Osmundsberg K-bentonite at the Kallholn Quarry in the same area. Based on new biostratigraphic data, the latter bed is now considered to be slightly younger than the Osmundsberg K-bentonite. The dated stratigraphic level of the ash layers is slightly younger than the base of the Telychian Stage and thus represents a minimum age for the Aeronian/Telychian Stage boundary. A U-Pb age of 〉 438 Ma for the base of this stage, however, is older and in conflict with estimates in the most recent compilation of the Silurian time scale. in view of the fact that only three radio-isotopic dates from the entire Llan- dovery have been previously accepted, this new and biostratigraphically exceptionally well-controlled radio-isotopic date fills an important gap in the Lower Silurian geochronology.

关键词：无线电同位素蓝达夫里阶志留纪

Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients:A systematic review and meta-analysis of randomized controlled trials

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Journal of Sport and Health Science 2023年第2期12卷 147-157页

作者： Antonio García-Hermoso Robinson Ramírez-Vélez Javier díez Arantxa González Mikel izquierdo Navarrabiomed Public University of Navarra(UPNA)Health Research Institute of Navarra(IdiSNA)University Hospital of NavarraPamplona 310008Spain CiBER of Frailty and Healthy Aging(CiBERFES) Carlos Ⅲ Institute of HealthMadrid 28029Spain institute for Health Research of Navarra(idiSNA) Pamplona 31008Spain Program of Cardiovascular diseases Center for Applied Medical ResearchUniversity of NavarraPamplona 31008Spain Centre for Biomedical Research in Cardiovascular disease Network Carlos Ⅲ Institute of HealthMadrid 28029Spain departments of Nephrology and Cardiology University of Navarra ClinicPamplona 31008Spain

Background:This study investigates the effects of exercise training on exerkines in patients with type 2 diabetes mellitus to determine the optimal exercise ***:A systematic search for relevant studies was performed in 3 *** controlled trials investigating the effects of exercise training on at least one of the following exerkines were included:adiponectin,apelin,brain-derived neurotrophic factor,fetuin-A,fibroblast growth factor-21,follistatin,ghrelin,interleukin(iL)-6,iL-8,iL-10,iL-15,iL-18,leptin,myostatin,omentin,resistin,retinol-binding protein 4,tumor necrosis factor-α,and ***:Forty randomized controlled trials were selected for data extraction(n=2160).Exercise training induces changes in adiponectin,fetuin-A,fibroblast growth factor-21,iL-6,iL-10,leptin,resistin,and tumor necrosis factor-a levels but has no significant effects on apelin,iL-18,and ghrelin compared to *** exercise training favored large and positive changes in pooled exerkines(i.e.,an overall effect size calculated from several exerkine s)(Hedge’s g=1.02,95%confidence interval(95%Ci):0.76-1.28),which in turn were related to changes in glycated hemoglobin(mean difference(Md)=-0.81%,95%Ci:-0.95%to-0.67%),fasting glucose(Md=-23.43 mg/dL,95%Ci:-30.07 mg/dL to-16.80 mg/dL),waist circumference(Md=-3.04 cm,95%Ci:-4.02 cm to-2.07 cm),and body mass(Md=-1.93 kg,95%Ci:-2.00 kg to-1.86 kg).Slightly stronger effects were observed with aerobic,resistance,or high-intensity interval protocols at moderate-to vigorous-intensity and with programs longer than 24 weeks that comprise at least 3 sessions per week and more than 60 min per ***:Exercise training represents an anti-inflammatory therapy and metabolism-improving strategy with minimal side effects for patients with type 2 diabetes mellitus.

关键词： Adipokines Exercise training Hepatokines Myokines

Liver decompensation after rapid weight loss from semaglutide in a patient with non-alcoholic steatohepatitis -associated cirrhosis

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World Journal of Gastroenterology 2023年第47期29卷 6165-6167页

作者： Matthew Peverelle Jonathan Ng James Peverelle Ryan d.Hirsch Adam Testro Liver transplant unit Austin HealthMelbourne 3084Australia Liver transplant unit Austin HealthHeidelberg 3084VictoriaAustralia

There is rapidly increasing uptake of GLP-1 (glucagon-like peptide-1) agonistssuch as semaglutide worldwide for weight loss and management of non-alcoholicsteatohepatitis (NASH). remains a paucity of safety data in the vulnerable NASHcirrhotic population. We report herein the first documented case of liver decompensationand need for liver transplant waitlisting in a patient with NASHcirrhosistreated with semaglutide. Rapid weight loss led to the development ofascites and hepatic encephalopathy and an increase in the patients Model forEndstage Liver disease-Na (MELd-Na) score from 11 to 22. Aggressive nutritionalsupplementation was commenced and the semaglutide was stopped. Overthe following months she regained her weight and her liver recompensated andher MELd-Na decreased to 13, allowing her to be delisted from the transplantwaitlist. This case serves as a cautionary tale to clinicians using semaglutide in thecirrhotic population and highlights the need for more safety data in this patientgroup.

关键词： Semaglutide Non-alcoholic steatohepatitis Cirrhosis Non-alcoholic steatohepatitis cirrhosis Glucagon-like peptide 1 agonists Weight loss

Automated Red deer Algorithm with deep Learning Enabled Hyperspectral image Classification

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intelligent Automation & Soft Computing 2023年第2期35卷 2353-2366页

作者： B.Chellapraba d.Manohari K.Periyakaruppan M.S.Kavitha department of information Technology Karpagam Institute of TechnologyCoimbatore641032TamilnaduIndia department of Computer Science and Engineering St.Joseph’s Institute of TechnologyChennai600119India department of Computer Science&Engineering SNS College of EngineeringCoimbatore641107India department of Computer Science&Engineering SNS College of TechnologyCoimbatore641035India

Hyperspectral(HS)image classiﬁcation is a hot research area due to challenging issues such as existence of high dimensionality,restricted training data,*** recognition of features from the HS images is important for effective classiﬁcation ***,the recent advancements of deep learning(dL)models make it possible in several application *** addition,the performance of the dL models is mainly based on the hyperparameter setting which can be resolved by the design of *** this view,this article develops an automated red deer algorithm with deep learning enabled hyperspec-tral image(HSi)classiﬁcation(RdAdL-HiC)*** proposed RdAdL-HiC technique aims to effectively determine the HSi *** addition,the RdAdL-HiC technique comprises a NASNetLarge model with Adagrad ***,RdA with gated recurrent unit(GRU)approach is used for the identiﬁcation and classiﬁcation of *** design of Adagrad optimizer with RdA helps to optimally tune the hyperparameters of the NASNetLarge and GRU models *** experimental results stated the supremacy of the RdAdL-HiC model and the results are inspected interms of different *** comparison study of the RdAdL-HiC model demonstrated the enhanced per-formance over its recent state of art approaches.

关键词： Hyperspectral images image classiﬁcation deep learning adagrad optimizer nasnetlarge model red deer algorithm

KiRCHHOFF TYPE EQUATiONS dEPENdiNG ON A SMALL PARAMETER 　

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Chinese Annals of Mathematics,Series B 1995年第4期16卷 413-430页

作者： P. d’ANCONA S. SPAGNOLO (departmellt of Mathematics, Pisa University Pisa, italy) UNiV PiSA DEPT MATHPISAITALY

The authors prove some global existence results for equations of Kirchhoff type, i.e., nonlinearstretched string with nonlocal terms, depending on a parameter. This general setting includes the known results on the Kirchhoff equation with small data. Moreover, the authors can also handle some cases of degeneracy, which escaped earlier methods.

关键词： Nonlinear hyperbolic equations Nonlocal equations Kirchhoff equations.

Eubiotic properties of rifaximin: disruption of the traditional concepts in gut microbiota modulation

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World Journal of Gastroenterology 2017年第25期23卷 4491-4499页

作者： Francesca Romana Ponziani Maria Assunta Zocco Francesca d’Aversa Maurizio Pompili Antonio Gasbarrini internal Medicine Gastroenterology and Hepatology Division Agostino Gemelli Hospital

Antibiotics are usually prescribed to cure infections but they also have significant modulatory effects on the gut microbiota. Several alterations of the intestinal bacterial community have been reported during antibiotic treatment, including the reduction of beneficial bacteria as well as of microbial alpha-diversity. Although after the discontinuation of antibiotic therapies it has been observed a trend towards the restoration of the original condition, the new steady state is different from the previous one, as if antibiotics induced some kind of irreversible perturbation of the gut microbial community. The poorly absorbed antibiotic rifaximin seem to be different from the other antibiotics, because it exerts non-traditional effects additional to the bactericidal/bacteriostatic activity on the gut microbiota. Rifaximin is able to reduce bacterial virulence and translocation, has anti-inflammatory properties and has been demonstrated to positively modulate the gut microbial composition. Animal models, culture studies and metagenomic analyses have demonstrated an increase in Bifidobacterium, Faecalibacterium prausnitzii and Lactobacillus abundance after rifaximin treatment, probably consequent to the induction of bacterial resistance, with no major change in the overall gut microbiota composition. Antibiotics are therefore modulators of the symbiotic relationship between the host and the gut microbiota. Specific antibiotics, such as rifaximin, can also induce eubiotic changes in the intestinal ecosystem; this additional property may represent a therapeutic advantage in specific clinical settings.

关键词： intestinal bacteria Antibiotic Rifaximin Gut microbiota Eubiosis dysbiosis Gut microbiota modulation

有机阴离子柱撑水滑石的插层组装及超分子结构

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过程工程学报 2002年第4期2卷 355-360页

作者：李殿卿冯桃 Evans d G 段雪北京化工大学可控化学反应科学与技术基础教育部重点实验室北京100029

以水滑石Mg4Al2(OH)12CO3.4H2O为前体,采用离子交换法进行插层组装制备了丁二酸、己二酸、十二烷基磺酸、对羟基苯甲酸、苯甲酸和对苯二甲酸柱撑水滑石,并用XRd, FTiR和dTA测试技术对样品进行了表征. 结果表明,通过控制离子交换条件,6... 详细信息

以水滑石Mg4Al2(OH)12CO3.4H2O为前体,采用离子交换法进行插层组装制备了丁二酸、己二酸、十二烷基磺酸、对羟基苯甲酸、苯甲酸和对苯二甲酸柱撑水滑石,并用XRd, FTiR和dTA测试技术对样品进行了表征. 结果表明,通过控制离子交换条件,6种有机酸根离子可以插入水滑石的层间完全取代CO32离子,并形成具有超分子结构的稳定有机阴离子柱撑水滑石.

关键词：层状前体柱撑水滑石离子交换插层组装超分子结构

Modified deep sclerectomy combined with Ex-PRESS filtration device versus trabeculectomy for primary open angle glaucoma

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international Journal of Ophthalmology(English edition) 2017年第5期10卷 728-732页

作者： Vassilios Kozobolis Georgios d.Panos Aristeidis Konstantinidis Miguel Teus Georgios Labiris department of Ophthalmology University General Hospital of Alexandroupolis School of Medicine Democritus University of Thrace Alexandroupolis Eastem Macedonia and ThraceGR-68100 Greece Eye institute of Thrace School of Medicine Democritus University of Thrace Alexandroupolis Eastern Macedonia and Thrace GR-68100 Greece Glaucoma Laser Eye Center Athens GR-10674 Greece department of Ophthalmology School of MedicineUniversity of Alcala Madrid ES-28801 Spain

AiM：To compare the efficacy of modified deep sclerectomy combined with Ex-PRESS shunt versus trabeculectomy in primary open angle glaucoma. METHOdS：This is a prospective cohort comparative single-center study. Forty-nine eyes of 49 patients were enrolled in the study. Patients were randomly divided into two groups. Group A（22 patients） underwent classic trabeculectomy and group B（27 patients） underwent modified deep sclerectomy combined with insertion of Ex-PRESS model P50 drainage device. RESULTS：Mean age was 69±7y in group A and 64±8y in group B（P=0.03）. The mean reduction was 11.1±5.7 mm Hg in group A compared to 15.8±5.7 mm Hg in group B at 6mo（P=0.006）, and 9.8±4.9 mm Hg and 15.4±4.7 mm Hg respectively at 1y（P=0.0001）. Regarding the postoperative glaucoma medication, significant difference was observed between the two groups（in favour of group B） only at 6mo（P=0.017）. At the end of the follow-up period complete success rate in group A was 68.2% compared to 92.6% in group B（χ^2 test, P=0.07） and qualified success rate was 100% in both ***：Modified deep sclerectomy combined with Ex-PRESS shunt may provide comparable iOP reduction with fewer complications in management of primary open angle glaucoma.

关键词： modified deep sclerectomy Ex-PRESSdrainage device trabeculectomy glaucoma