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Acta Geochimica 2024年第6期43卷 1133-1152页

作者： Vladimir n.Kuleshov Andrey Yu.Bychkov Irina Yu.nikolaeva Maria E.Tarnopolskaia Geological Institute Russian Academy of SciencesPyzhevskii Per.7119017 MoscowRussia Lomonosov Moscow State University Leninskie Gory1119899 MoscowRussia

Chemical(rEE and major elements)and isotope(δ^(13)C,δ^(18)O)composition of carbonate manganese ores and manganese-bearing carbonates of the Usa deposit(Siberia,russia)were *** data on the composition of rEE exhibit both the distinct negative(Ce/Ce*_(PAAS)nd positive(Ce/Ce*_(PAAS)>1)cerium anomalies and the positive Eu-anomaly(Eu/Eu*_(PAAS)>1).negative Eu-anomalies are not *** contents of Mn,Fe,rEE,and Ce-anomalies show a positive correlation with each ***-anomalies and the amount of manganese and rEE in relation to the carbon isotope composition(δ^(13)C)show a negative relationship and indicate that oxidized carbon of organic matter played an important role in the concentration of manganese and rEE in manganese *** chemical and isotope composition of examined rocks indicates on secondary formation of *** major phases and sources are distinguished in the ore-forming process characterized by diff erent chemical(rEE and ore elements)and isotope composition:(i)highgrade manganese ores(with high contents of rEE and light carbon isotope composition)and(ii)low-grade manganese ores(with low contents of rEE and heavy carbon isotope composition).

关键词： Manganese ore rEE Isotope composition Catagenesis Cambrian Siberia

Addition of ‘Chetoui’ olive leaf extract to reduce acrylamide in Californian-style black olive

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Food Bioscience 2022年第6期50卷 842-851页

作者： Dalel Mechi Antonio Fernández Bechir Baccouri Leila Abaza Daniel Martín-Vertedor Laboratory of Olive Biotechnology Centre of Biotechnology of Borj-Cedria (CBBC)BP 9012050Hammam-lifTunisia The Faculty of Science of Bizerte University of CarthageTunisia Technological Institute of Food and Agriculture (CICYTEX-InTAEX) Junta of ExtremaduraAvda.Adolfo Suárez S/n06007BadajozSpain

To improve food quality, the use of olive leaf extracts has been an emergent strategy that needs to be study in different scenarios. Certain local olive varieties are waiting to be discovered as potential by-product sources, in which a Tunisian variety named ‘Chetoui’ can be pointed out. The use of this variety at different tree ages to elaborate olive leaf extracts (OLE) in different solvents has been the main procedure to study during this assay. Different OLE concentrations were prepared in order to evaluate its effect in contaminants such as acrylamide. Adult ‘Chetoui’ OLE presented a richer phenolic content that is younger homonym. Principal phenols like hydroxytyrosol, tyrosol, oleuropein and luteolin-7-O-gluvoside presented higher levels for both tree ages. In terms of extractants, the most effective was Methanol, having concentrations for oleuropein, hydroxytyrosol and Luteolin-7-O-glucoside of 175331, 32433 and 10688 mg 100 g−1 respectively. Hexane was the least successful solvent, having no concentration for plenty of the phenols. Acrylamide concentration was deeply affected for the OLE presence for every extract concentration, being OLE (1:10) and OLE (1:10 + HTy) the additions with a better performance followed by OLE (1:100). A sensory analysis was performed finding out that OLE (1:100) was the most appealing for the consumer when adding it to table olives. The current research attempts to discover new applications for local varieties, using by-products to enhance oxidized black table olives added value. Finally, market products would become healthier, safer and with better quality to be released in the food industry.

关键词： Tunisia Olive leaf extract Acrylamide Phenolic compounds Table olive

An alternative approach for sustainable sheep meat production:implications for food security

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Journal of Animal Science and Biotechnology 2021年第2期12卷 791-805页

作者： Eric n.Ponnampalam Matthew I.Knight Peter J.Moate Joe L.Jacobs Animal Production Sciences Agriculture Victoria ResearchDepartment of JobsPrecincts and RegionsBundooraVIC 3083Australia Animal Production Sciences Agriculture Victoria ResearchDepartment of JobsPrecincts and RegionsHamiltonVIC 3300Australia Animal Production Sciences Agriculture Victoria ResearchDepartment of JobsPrecincts and RegionsEllinbankVictoria 3821Australia Centre for Agricultural Innovation School of Agriculture and FoodFaculty of Veterinary and Agricultural SciencesThe University of MelbourneMelbourneVictoria 3010Australia

Background:A pelleted diet containing camelina hay(CAMH)or camelina meal(CAMM)as a supplement along with a control pellet(COnT)diet formulated with commonly available feeds during summer was used to investigate an alternative pathway for sustainable meat *** meat production was based on a simple estimation of income from meat produced versus feed costs if animals were fed for an extended period over summer compared to early slaughter at the beginning of *** maternal composite wether lambs(Composite)based on Coopworth genetics and 80 pure Merino wether yearlings were divided into 10 groups within breed(n=8)using stratified randomisation based on *** 1 week of adaptation to experimental diets,animals were fed experimental diets for up to10 ***:Animals were slaughtered after either 8,9 or 10 weeks of full feeding when the average liveweight of diet/genetic combination reached a weight appropriate for either‘heavy lamb’or‘heavy hogget’production,which occurred between 8 and 10 weeks of full *** was no diet×breed interactions except for dressing percentage(DP),where Composite lambs fed the CAMH diet had the greatest DP(48.1±0.35)and the Merino yearlings fed the CAMM diet the lowest DP(45.8±0.33).Composite lambs gained 17.6–20.3 kg and Merino yearlings gained 10.7–12.9 kg *** on their DP,this resulted in the production of approximately 8.3–9.5 kg additional carcass weight in Composites and 4.9–5.7 kg in Merinos,which in turn produced greater profit per Composite lamb and a small profit per Merino ***:Composite lambs fed CAMM and CAMH had 5%greater carcass weights at slaughter compared to the COnT group,but dietary treatments did not change carcass weight of Merino yearlings at *** extended feeding approach offered the producer an estimated economic gain of AUD$20.00 to$25.00 when yearly average prices were used(Method 1)and AUD$40.00 to$47.70 when pre-and post-summer

关键词： Animal welfare Environmental sustainability Global demand Livestock Sheep meat Summer feeding

Liver diseases in pregnancy: Diseases not unique to pregnancy

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World Journal of Gastroenterology 2013年第43期19卷 7630-7638页

作者： Ashraf A Almashhrawi Khulood T Ahmed rubayat n rahman Ghassan M Hammoud Jamal A Ibdah Division of Gastroenterology and Hepatology University of MissouriColumbiaColumbiaMO 65212United States

Pregnancy is a special clinical state with several normal physiological changes that influence body organs including the *** disease can cause significant morbidity and mortality in both pregnant women and their *** challenges arise in reaching an accurate diagnosis in light of such physiological *** test results should be carefully interpreted and the knowledge of what normal changes to expect is prudent to avoid clinical *** challenges entail the methods of treatment and their safety for both the mother and the *** review summarizes liver diseases that are not unique to *** focus on viral hepatitis and its mode of transmission,diagnosis,effect on the pregnancy,the mother,the infant,treatment,and *** hepatitis,primary biliary cirrhosis,primary sclerosing cholangitis,Wilson’s disease,Budd Chiari and portal vein thrombosis in pregnancy are also *** is rare in patients with cirrhosis because of the metabolic and hormonal changes associated with *** bleeding can happen in up to 38%of cirrhotic pregnant *** of portal hypertension during pregnancy is *** increases the pathogenicity leading to an increase in the rate of *** discuss some of the interventions for gallstones in pregnancy if symptoms ***,we provide an overview of some of the options in managing hepatic adenomas and hepatocellular carcinoma during pregnancy.

关键词： Liver Pregnancy Viral hepatitis Autoimmune Cirrhosis Gallstones Adenoma

Design of internal model control based fractional order PID controller

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控制理论与应用（英文版） 2012年第3期10卷 297-302页

作者： T.VInOPrABA n.SIVAKUMArAn S.nArAYAnAn T.K.rADHAKrISHnAn Department of Instrumentation and Control Engineering National Institute of TechnologyTiruchirappalli 620015India Department of Chemical Engineering National Institute of TechnologyTiruchirappalli 620015India

This article presents a design of the internal model control （IMC） based single degree of freedom （SDF） fractional order （FO） PID controller with a desired bandwidth specification for a class of fractional order system （FOS）. The drawbacks of the SDF FO-IMC are eliminated with the help of the two-degree of freedom （TDF） FO PID controller. The robust stability and robust performance of the designed controller are analyzed using an example.

关键词： Fractional order PID controller Fractional order systems Model based control robust control

Inexpensive synthesis of a high-performance Fe3O4-SiO2-TiO2 photocatalyst： Magnetic recovery and reuse

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Frontiers of Chemical Science and Engineering 2016年第3期10卷 405-416页

作者： nadir Abbas Godlisten n. Shao Syed M. Imran Muhammad S. Haider Hee Taik Kim Department of Chemical Engineering Hanyang University Ansan-si Gyeonggi-do 426-791 Republic of Korea Department of Civil and Environmental Engineering Hanyang University Ansan-si Gyeonggi-do 426-791 Republic of Korea Department of Chemical Engineering University of Gujrat HH Campus Punjab Pakistan

A sol-gel technique has been developed for the synthesis of a magnetite-silica-titania （Fe3O4-SiO2-TiO2） tertiary nanocomposite with improved photocatalytic properties based on the use of inexpensive titania and silica precursors. The exceptional photocatalytic activity of the resulting materials was demonstrated by using them to photocatalyze the degradation of methylene blue solution. The best formulation achieved 98% methylene blue degradation. An interesting feature of the present work was the ability to magnetically separate and reuse the catalyst. The efficiency of the catalyst remained high during two reuses. The synthesized nanomaterials were characterized by X-ray diffraction （XrD）, scanning electron microscopy （SEM）, transmission electron micro- scopy （TEM）, Fourier transform infrared （FTIr） spectro- scopy, ultra-violet-visible spectroscopy, diffuse reflectance spectroscopy, and thermogravimetric analysis. XrD ana- lysis revealed the formation of multicrystalline systems of cubic magnetite and anatase titania crystals. SEM and TEM characterization revealed well-developed and homo- geneously dispersed particles of size less than 15 nm. FTIr spectra confirmed the chemical interaction of titania and silica. It was further noticed that the optical properties of the prepared materials were dependent on the relative contents of their constituent metal oxides.

关键词： sol-gel photocatalysis magnetic recovery,TiO2 Fe3O4 SiO2

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Generation of strong magnetic fields for magnetized plasma experiments at the 1-MA pulsed power machine

作者： r.B.·蔡斯(r.B. Chase ) n.J.·阿奎拉罗(n.J. Aquilano)

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Matter and radiation at Extremes 2021年第4期6卷 31-42页

作者： V.V.Ivanov A.V.Maximov r.Betti L.S.Leal J.D.Moody K.J.Swanson n.A.Huerta Department of Physics University of NevadaRenoNevada 89557USA Laboratory for Laser Energetics University of RochesterRochesterNew York 14623USA Department of Physics and Astronomy University of RochesterRochesterNew York 14623USA Lawrence Livermore national Laboratory LivermoreCalifornia 94550USA

Pulsed power technology provides a platform for investigating plasmas in strong magnetic fields using a university-scale *** here are methods for generating and measuring the 1–4-MG magnetic fields developed for the 1-MA Zebra pulsed power generator at the University of nevada,reno.A laser coupled with the Zebra generator produces a magnetized plasma,and experiments investigate how a megagauss magnetic field affects the two-plasmon decay and the expansion of the laser-produced plasma in both transverse and longitudinal magnetic fields.

关键词： magnetic generator fields

Size-dependent optical properties of Au nanorods

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Progress in natural Science:Materials International 2013年第1期23卷 36-43页

作者： S.L.Smitha K.G.Gopchandran n.Smijesh reji Philip Department of Optoelectronics University of KeralaThiruvananthapuram-695 581India St.Joseph's College for Women Alappuzha-688 001India raman research Institute C.V.Raman AvenueSadashivanagarBangalore 560080India

In the fast evolving field of nanoscience and nanotechnology,where size and shape are crucial in deciding the optoelectronic properties of nanomaterials,the understanding of size and shape dependent behavior is of direct relevance to device *** study reports the synthesis of Au nanorods with well controlled aspect ratios,and the influence of the aspect ratio on the surface enhanced raman scattering(SErS) activity using crystal violet(CV) as the probe *** influence of pH and the concentrations of reducing agent and Ag ions in controlling the aspect ratio of gold nanorods are also *** structural and optical properties of the synthesized samples have been characterized by transmission electron microscopy(TEM) and UV-visible absorption *** nonlinear optical(nLO) transmission of the Au nanorods investigated using the open aperture Z-scan technique revealed the absorption saturation followed by an optical limiting behavior,which may find potential applications in optoelectronic nanodevices.

关键词： Au nanorods SErS Crystal violet Z-scan nonlinear absorption Optical limiting

杂原子修饰的碳纳米管对高级氧化过程的催化性能(英文)

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催化学报 2014年第6期35卷 896-905页

作者： Joo restivo raquel P.rocha Adrián M.T.Silva José J.M.órfo Manuel F.r.Pereira José L.Figueiredo Laboratory of Catalysis and Materials-Associate Laboratory LSrE/LCM Faculty of Engineering University of Porto Rua Dr.Roberto Frias 4200-465 Porto Portugal

Multi-walled carbon nanotubes (CnTs) were submitted to chemical and thermal treatments in order to incorporate different heteroatoms on the surface. O-, S- and n-containing groups were successfully introduced onto the CnTs without significant changes of the textural properties. The cata-lytic activity of these heteroatom-modified CnTs was studied in two liquid phase oxidation processes: catalytic ozonation and catalytic wet air oxidation (CWAO), using oxalic acid and phenol as model compounds. In both cases, the presence of strongly acidic O-containing groups was found to decrease the catalytic activity of the CnTs. On the other hand, the introduction of S species (mainly sulfonic acids) enhanced the removal rate of the model compounds, particularly in the CWAO of phenol. Additional experiments were performed with a radical scavenger and sodium persulfate, in order to clarify the reaction mechanism. nitrogen functionalities improve the catalytic performance of the original CnTs, regardless of the process or of the pollutant.

关键词：多壁碳纳米管催化性能高级氧化技术杂原子修饰模型化合物含氮基团催化湿式氧化