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Transactions of Nonferrous Metals Society of China 2023年

作者： A.V. Samokhin N.V. Alekseev a.a. dorofeev a.a. Fadeev M.A. Sinayskiy I.D. Zavertiaev Y.V. Grigoriev Institute of Metallurgy and Materials Science， Russian a.a.emy of Sciences 2. Federal Scientific Research Center "Crystallography and Photonics"， Russian a.a.emy of Sciences

The possibility for obtaining of composite micropowders of the W-Cu system with spherical particles having sub-microscale/nanoscale internal structure was confirmed and studied using the complex multistage approach. Composite W-Cu nanoparticles with core–shell structure (W cores and Cu shells) were produced in plasmochemical synthesis by the first stage. Further spray-drying of the aqueous suspension of the W-Cu nanopowder with sucrose enabled the formation of 25–63 μm microgranules with a yield of 50%. The last step was treatment of the nanopowder microgranules by a thermal plasma jet， which ensured the production of dense spherical W-Cu particles. The final powder had a 90%–95% spheroidization degree， up to 8.1 g/cm3bulk density and a flowability of ～12 s/50 g. The content of impurities in the resulting spherical micropowder did not exceed 0.7 wt.% [O]， 0.02–0.2 wt.% [C] and 0.03-0.05 wt.% [H].

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等离子体技术制备具有亚微米颗粒结构的球化W-Cu伪合金微粉

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Transactions of Nonferrous Metals Society of China 2024年第2期34卷 592-603页

作者： A.V.SAMOKHIN N.V.ALEKSEEV a.a.dorofeev a.a.FADEEV M.A.SINAYSKIY I.D.ZAVERTIAEV Y.V.GRIGORIEV Institute of Metallurgy and Materials Science Russian Academy of SciencesMoscow 119334Leninsky prospect 49Russian Federal Scientific Research Center“Crystallography and Photonics” Russian Academy of SciencesMoscow 119334Leninsky prospect 59Russian

采用复杂多级方法研究并证实制备具有亚微米/纳米级内部结构的球形W-Cu复合微粉的可能性。首先,采用等离子体化学合成法制备具有核壳结构的W-Cu纳米粉末(W核及Cu壳)。然后,将W-Cu纳米粉末与蔗糖的水悬浮液进行喷雾干燥,形成25~63μm的微... 详细信息

采用复杂多级方法研究并证实制备具有亚微米/纳米级内部结构的球形W-Cu复合微粉的可能性。首先,采用等离子体化学合成法制备具有核壳结构的W-Cu纳米粉末(W核及Cu壳)。然后,将W-Cu纳米粉末与蔗糖的水悬浮液进行喷雾干燥,形成25~63μm的微粒,收率为50%。最后,用热等离子体射流处理由纳米粉末组成的微粒,形成致密的球形W-Cu颗粒。成品粉末的球化度为90%~95%,体积密度为8.1 g/cm^(3),流动性约为12 s/50 g,杂质中O、C和H的含量(质量分数)分别为0.7%、0.02%~0.2%和0.03%~0.05%。

关键词： W-Cu复合材料等离子体化学合成造粒等离子体球化纳米颗粒微粒微粉

Combining ability of Egyptian cotton(Gossypium barbadense L.)reveals genetic potential for improved yield and fiber quality

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Journal of Cotton Research 2024年第2期7卷 109-122页

作者： Abdelghany Ahmed M. El-Banna.a.y a.a. Lamlom Sobhi F El-Sorady Gawha.a.A. Sa.a.a Ehab a.a. Ren Honglei Shaibu Abdulwa.a. S. Yehia Waleed M.B. Crop Science Department Faculty of AgricultureDamanhour UniversityDamanhour 22516Egypt Plant Production Department Faculty of Agriculture Saba BashaAlexandria UniversityAlexandria 21531Egypt Agricultural Botany Department Faculty of Agriculture Saba BashaAlexandria UniversityAlexandria 21531Egypt Heilongjiang a.a.emy of Agricultural Sciences Soybean Research InstituteHarbin 150086China Department of Agronomy Bayero University KanoKano 700001Nigeria Cotton Breeding Department Cotton Research InstituteAgriculture Research CenterGizaEgypt

Background As the most widely cultivated fiber crop,cotton production depends on hybridization to unlock the yield potential of current varieties.A deep understanding of genetic dissection is crucial for the cultivation of enhanced hybrid plants with desired traits,such as high yield and fine fiber *** this study,the general combining ability(GCa.a.d specific combining ability(SCA)of yield and fiber quality of nine cotton parents(six lines and three testers)and eighteen F1 crosses produced using a line×tester mating design were *** The results revealed significant effects of genotypes,parents,crosses,and interactions between parents and crosses for most of the studied ***,the effects of both additive and non-additive gene actions played a notably significant role in the inheritance of most of the yield and fiber quality *** F1 hybrids of(Giza 90×Aust)×Giza 86,Uzbekistan 1×Giza 97,and Giza 96×Giza 97 demonstrated superior performance due to their favorable integration of high yield attributes and premium fiber quality *** a.a.ysis revealed that lint yield has the highest positive direct effect on seed cotton yield,while lint percentage showed the highest negative direct effect on seed cotton *** component a.a.ysis identified specific parents and hybrids associated with higher cotton yield,fiber quality,and other agronomic *** This study provides insights into identifying potential single-and three-way cross hybrids with superior cotton yield and fiber quality cha.a.teristics,laying a foundation for future research on improving fiber quality in cotton.

关键词： Gossypium barbadense L. Combining ability Seed cotton yield Fiber quality Cluster a.a.ysis Path a.a.ysis

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英语世界 2024年第9期 48-52页

作者： a.a.米尔恩林羽竹

我经常渴望能成为一个食品杂货商。让身边环绕着如此多有趣的东西——沙丁鱼、瓶装覆盆子、砂糖饼干、腌生姜、火腿、玻璃罩扣肉冻,以及一切使生活有意义的东西。一会儿爬上梯子去找肉豆蔻,一会儿钻到柜台下去寻肉桂;给小姑娘提供值半...

我经常渴望能成为一个食品杂货商。让身边环绕着如此多有趣的东西——沙丁鱼、瓶装覆盆子、砂糖饼干、腌生姜、火腿、玻璃罩扣肉冻,以及一切使生活有意义的东西。一会儿爬上梯子去找肉豆蔻,一会儿钻到柜台下去寻肉桂;给小姑娘提供值半便士的梨形糖果,给你我这样的体面人提供一品脱的樱桃杜松子酒。做这些事,不算是从事最好的行当吗?总有一天我会开家食品杂货店。你会发现,在空闲的傍晚,我身着围裙,站在柜台后面。

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Previous hepatitis B viral infection–an underestimated cause of pancreatic cancer

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World Journal of Gastroenterology 2022年第33期28卷 4812-4822页

作者： Sergey Batskikh Sergey Morozov Alexey dorofeev Zanna Borunova Dmitry Kostyushev Sergey Brezgin a.a.tasiya Kostyusheva Vladimir Chulanov Department of Hepatology Moscow Clinical Scientific Center N.A.A.S.LoginovMoscow 111123Russia Department of Gastroenterology Hepatology and NutritionFederal Research Center of NutritionBiotechnology and Food SafetyMoscow 115446Russia Department of Scientific and Clinical Laboratory Research Moscow Clinical Scientific Center N.A.A.S.LoginovMoscow 111123Russia Laboratory of Genetic Technologies Sechenov UniversityMoscow 119435Russia Division of Biotechnology Scientific Center for Genetics and Life SciencesSirius University of Science and TechnologySochi 354340Russia Laboratory of Genetic Technologies and Translational Research National Medical Research Center for Tuberculosis and Infectious Diseases of Ministry of Health of RussiaMoscow 127994Russia

BACKGROUND The etiology of pancreatic cancer remains unclear. This limits the possibility of prevention and effective treatment. Hepatitis B virus(HBV) is responsible for the development of different types of cancer, but its role in pancreatic cancer is still being *** To assess the prevalence of previous HBV infection and to identify viral biomarkers in patients with pancreatic ductal adenocarcinoma(PDAC) to support the role of the virus in etiology of this *** The da.a.of 130 hepatitis B surface antigen-negative subjects were a.a.lable for the final a.a.ysis,including 60 patients with PDAC confirmed by cytology or histology and 70 sex-and age-matched controls. All the participants were tested for HBV biomarkers in blood [antibody to hepatitis B core antigen(anti-HBc), antibody to hepatitis B surface antigen(anti-HBs) and HBV DNA], and for those with PDAC, biomarkers in resected pancreatic tissues were tested(HBV DNA, HBV pregenomic RNa.a.d covalently closed circular DNA). We performed immunohistochemistry staining of pancreatic tissues for hepatitis B virus X antigen and Ki-67 protein. Non-pa.a.etric statistics were used for the *** Anti-HBc was detected in 18/60(30%) patients with PDAC and in 9/70(13%) participants in the control group(P = 0.029). Accordingly, the odds of PDAC in anti-HBc-positive subjects were higher compared to those with no previous HBV infection(odds ratio: 2.905, 95% confidence interval: 1.191-7.084, standard error 0.455). HBV DNA was detected in 8 cases of PDAC and in 6 of them in the pancreatic tumor tissue samples only(all patients were anti-HBc positive). Blood HBV DNA was negative in all subjects of the control group with positive results of the serum anti-HBc test. Among 9 patients with PDAC, 5 revealed signs of replicative competence of the virus(covalently closed circular DNA with or without pregenomic RNA) in the pancreatic tumor tissue samples. Hepatitis B virus X antigen expression and active cell

关键词： Hepatitis B virus Previous hepatitis B Occult hepatitis B virus infection Pancreatic cancer Pancreatic ductal adenocarcinoma

Dysprosium oxide,alumina.a.d graphene oxide reinforced polycaprolactone thin films:Thermal stability,morphology,and cell viability

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Journal of Rare Earths 2024年第7期42卷 1337-1343,I0005页

作者： Mohamed Tharwat Elabbasy Mohamed R.Atteya Mai A.Sa.a. Mousa.a.delrahman Ta.a.i AlMahmoud M.A.El-Morsy a.a.Menazea M.F.H.Abd El-Kader Department of Public Health College of Public Health and Health InformaticsUniversity of Ha'ilHa'il2440Saudi Arabia Food Control Department Faculty of Veterinary MedicineZagazig UniversityZagazig44519Egypt Department of Physical Therapy College of Applied Medical SciencesUniversity of Ha'ilHa'ilSaudi Arabia Department of Histology and Cell Biology Faculty of MedicineZagazig UniversityZagazig44519Egypt College of Nursing University of Ha'ilHa'ilSaudi Arabia College of Science and Humanities in Al-Kharj Physics DepartmentPlasma Technology and Material Science UnitPrince Sattam Bin Abdulaziz UniversityAl-kharj11942Saudi Arabia Physics Department Faculty of ScienceUniversity of DamiettaNew Damietta34517Egypt Spectroscopy Department Physics Research InstituteNational Research CentreDokki12622GizaEgypt Biophysics Department Faculty of ScienceCairo UniversityGizaEgypt

Developing a biomaterial for wound healing applications is still a ***,dysprosium oxide(Dy_(2)O_(3)),aluminum oxide(Al_(2)O_(3)),and graphene oxide(GO)were embedded in cast films based on polycaprolactone(PCL)to be examined for wound dressing *** techniques were used to cha.a.terize the fabricated films including X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),Ra.a.,and scanning electron microscopy(SEM),besides their biological *** thermogravimetric a.a.ysis(TGA)exhibits high thermal stability as the scaffold weight decreases slightly to 98.6%after raising the temperature from room temperature to 280℃.The cell viability was investigated and it is shown that the viable cells grow up to approximately 93%at 75μg/***,the cell attachment shows excellent behavior as the cells attach on most of the surface of the modified PCL which shows high biocompatibility.

关键词： Wound healing Polycaprolactone Dy_(2)O_(3) Al_(2)O_(3) Biocompatible Rare earths

Science Letters:New solutions of shear waves in piezoelectric cubic crystals

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Journal of Zhejiang University-Science a.a.plied Physics & Engineering) 2007年第4期8卷 669-674页

作者： ZAKHARENKO a.a. International Institute of Zakharenko Waves Krasnoyarsk-3717701Krasnoyarsk 660037Russia

Acoustic wave propa.a.ion in piezoelectric crystals of classes?43m and 23 is studied. The crystals Tl3VS4 and Tl3TaSe4 (43m) of the Chalcogenide family and the crystal Bi12TiO20 (23) possess strong piezoelectric effect. Because the surface Bleustein-Gulyaev waves cannot exist in piezoelectric cubic crystals, it was concluded that new solutions for shear-horizontal surface acoustic waves (SH-SAWs) are found in the monocrystals using different electrical boundary conditions such as electri- cally “short” and “open” free-surfaces for the unique [101] direction of wave propa.a.ion. For the crystal Tl3TaSe4 with coefficient of electromechanical coupling (CEMC) Ke2=e2/(C×g)～1/3, the phase velocity Vph for the new SH-SAWs can be calculated with the following formula: Vph=(Va+Vt)/2, where Vt is the speed of bulk SH-wave, Vt=Vt4(1+Ke2)1/2, Va.a.Vt4, aK=2[Ke(1+Ke2)1/2-Ke2]1/2, and Vt4=(C44/ρ)1/2. It was found that the CEMC K2 evaluation for Tl3TaSe4 gave the value of K2=2(Vf–Vm)/Vf～0.047 (～4.7%), where Vf～848 m/s and Vm^828 m/s are the new-SAW velocities for the free and metallized surfaces, respectively. This high value of K2(Tl3TaSe4) is significantly greater than K2(Tl3VS4)～3% and about five times that of K2(Bi12TiO20).

关键词：压电立方晶体剪切波解强压电效应

Predicting the non-breeding distributions of the two Asian subspecies of Black-tailed Godwit using morphological information

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Avian Research 2023年第1期14卷 1-6页

作者： Bing-Run Zhu Mo A.Verhoeven Chris J.Hassell Katherine K-S Leung Dmitry dorofeev Qiang Ma Krairat Eia.a.pai Jonathan T.Coleman Uchrakhza.a.Tserenbat Gankhuyag Purev-Ochir David Li Zhengwang Zhang Theunis Piersma Conservation Ecology Group Groningen Institute for Evolutionary Life SciencesUniversity of Groningen9747AGthe Netherlands Key Laboratory for Biodiversity Science and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing100875China Hunan Global Messenger Technology Co. LtdChangshaChangsha410205China Netherlands Institute of Ecology(NIOO-KNAW) 6708 PBWageningenthe Netherlands Department of Coastal Systems NIOZ Royal Netherlands Institute for Sea ResearchDen Burg1790 ABTexelthe Netherlands Global Flyway Network BroomeWestern Australia6725Australia Austra.a.ian Wader Studies Group Western Australia(north)Australia Hong Kong Waterbirds Ringing Group Mai Po Nature ReserveHongKongChina All-Russian Research Institute for Environmental Protection Moscow117628Russia Chongming Dongtan National Nature Reserve Shanghai202183China Department of National Park Wildlife and Plant ConservationMinistry of Natural Resource and EnvironmentBangkok10900Thailand Queensland Wader Study Group Brisbane4128Australia Mongolian Bird Conservation Center Ulaanbaatar210351Mongolia Sungei Buloh Wetland Reserve National Parks Board 718925Singapore CEAAF Centre for East Asian-Austra.a.ian Flyway Studies Beijing Forestry UniversityBeijing100083China

Until recently,Limosa limosa melanuroides was thought to be the only subspecies of Black-tailed Godwit in the East Asian-Austra.a.ian *** this reason,all previous occurrences and counts of Black-tailed Godwits in the flyway have been assigned to ***,a larger-bodied subspecies,bohaii,has recently been discovered in the *** a result,the occurrence of Black-tailed Godwits in the flyway needs to be reconsidered such that the specific distribution of each subspecies becomes *** this end,we developed a simple discriminant function to assign individuals to subspecies based on their bill and wing ***-validation with individuals known to be bohaii or melanuroides,based on molecular a.a.ysis,showed the developed function to be 97.7%*** applied to measurements of godwits captured at 22 sites across 9 countries in East-Southeast Asia.a.d Australia,we found that bohaii and melanuroides occurred at most sites and overlapped in their distribution from Kamchatka to *** examined photos from all along the flyway to verify this surprising result,confirming that both subspecies co-occur in most *** on these results,we hypothesise that bohaii and melanuroides from the west of their breeding ranges mostly migrate over Chinese *** of both subspecies from the east of their ranges are expected to migrate along the Pacific *** encourage ringing groups in East-Southeast Asia.a.d Australia to use this simple method to keep adding knowledge about Black-tailed Godwits in the East Asian-Austra.a.ian Flyway.

关键词： DFA Discriminant function a.a.ysis East Asian-Austra.a.ian Flyway Limosa limosa

Bound States for Hypercentral Singular and Exponential Potentials

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Communications in Theoretical Physics 2006年第4期45卷 669-674页

作者： a.a. Ra.a.i Physics Department Shahrood University of Technology P.O. Box ***-316 Shahrood iran

With a view to obtaining an exact closed form solution to the Schr(o|¨)*** for a variety ofhypercentral potentials,we investigate further application of an *** method is good enough for many kinds ofpotentials,but in this article it applies to a type of the hypercentral singular potentials V(x)=ax~2+bx~(-4)+cx~(-6) andexponential hypercentral Morse potential U(x)=Uo(e~(-2ax)-2e~(-ax))for three interacting *** Morse potentialis used for diatomic molecule while this method will be successfully used for many atomic *** three-bodypotentials are more easily introduced and treated within the hyperspherical harmonic *** internal particlemotion is usually described by means of Jacobi relative coordinates p,λ,and R,in terms of three particle positions γ_1,γ_2,and γ_*** discuss some results obtained by using harmonic and anharmonic oscillators,however the hypercentralpotential can be easily generalized in order to allow a systematic a.a.ysis,which admits an exact solution of the *** method is also applied to some other types of three-body,four-body,...,interacting potentials.

关键词：超球面谐波不调和雅可比行列式拟设

New Conditions for Interca.a.ion of Organic Compounds into Semiconductor Nanomaterial

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Journal of Materials Science & Technology 2009年第4期25卷 470-474页

作者： a.a. El-Meligi National Research Centre Physical Chemistry Department

The interca.a.ion of organic guests, 2-methyl pyridine （2-picoline） and 3-methyl pyridine （3-picoline） into semiconductor layered nanomaterial （MnPS3） was investigated. New conditions were applied. New phases appeared and lattice expansions were 0.36 nm for 2-picoline interca.a.ion and 0.728 nm for 3-picoline inter- ca.a.ion. The XRD （X- ray diffraction） patterns exhibit sharp hkl reflections confirming that the material is highly crystalline. The interlayer gap （0.64 nm） of the host plays a role for the arrangement of the guest in the interlayer region. The crystal structure of the MnPS3 was indexed in the monoclinic system before inter- ca.a.ion. After interca.a.ion, the crystal system was indexed in the trigonal unit cell. The lattice pa.a.eters were obtained and c-axis value was related to the （001） reflections.

关键词： Layered nanomaterials Organic guest Interca.a.ion X-ray diffraction