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| 1 | Role of primary Zr-rich particles on microstructure and magnetic properties of 2:17-type Sm-Co-Fe-Cu-Zr permanent magnets显示文摘Trace Zr addition is essential for achieving desired cellular nanostructure and large coercivity in the pinning-controlled 2:17-type Sm-Co-Fe-Cu-Zr magnets that have served as the strongest high temperature permanent magnets for over 40 years.However,accompanying this is the formation of Zr-rich particles that may deteriorate the hard magnetic properties.Besides the formerly-reported 1:3R Zr-rich platelets,in this work,1–2μm sized Zr6(Co,Fe)23(6:23)particles(Fm 3 m)and 100–200 nm sized 1:3R Zr-rich particles were also found based on combined structural identifications and element mapping analysis.Around such particles,the desired 1:5H cell wall precipitates that provide the strongest pinning force of magnetic domain wall motions are rare,forming the precipitate-free-zones(PFZs).The 1:5H-PFZs and the soft magnetism of both 6:23 and 1:3R Zr-rich particles act as local weak pinning points,which are unfavorable to retain the large magnetization in strong opposite fields and lead to poor squareness.As observed in a Sm25Co45.9Fe19.5Cu5.6Zr4.0(wt.%)magnet,the co-existence of such Zr-rich particles and the associated 1:5H-PFZs leads to a pretty low squareness factor of only 52.89%given the large coercivity of 29.04 kOe.Our findings suggest that careful controlling the Zr content and avoiding its aggregation to form harmful 6:23 and 1:3R Zr-rich particles are essential for achieving high squareness as well as large energy product in the Sm-Co-Fe-Cu-Zr permanent magnets. | Tao Yuan Xin Song Xianglong Zhou Wentao Jia Munzali Musa Jingdong Wang Tianyu Ma | 2020 | Journal of Materials Science & Technology2020，52，18： | 6 |
| 2 | Petrogenesis and Tectonic Implications of Peralkaline A-Type Granites and Syenites from the Suizhou-Zaoyang Region,Central China显示文摘In this study, we present systematic petrological, geochemical, LA-ICP-MS zircon U-Pb ages and Nd isotopic data for the A-type granites and syenites from Suizhou-Zaoyang region. The results show that the peralkaline A-type granites and syenites were episodically emplaced in Suizhou-Zaoyang region between 450±3 and 441±7 Ma which corresponds to Late Ordovician and Early Silurian periods, respectively. Petrologically, the syenite-peralkaline granite association comprises of nepheline normative-syenite and alkaline granite in Guanzishan and quartz normative syenite and alkaline granite in Huangyangshan. The syenite-granite associations are ferroan to alkali in composition. They depict characteristics of typical OIB(oceanic island basalts) derived A-type granites in multi-elements primitive normalized diagram and Yb/Ta vs. Y/Nb as well as Ce/Nb vs. Y/Nb binary plots. Significant depletion in Ba, Sr, P, Ti and Eu indicates fractionation of feldspars, biotite, amphiboles and Ti-rich augite. The values of ?Nd(t) in Guanzishan nepheline syenite and alkaline granite are +1.81 and +2.26, respectively and the calculated two-stage model age for these rocks are 1 040 and 1 003 Ma, respectively. On the other hand, the Huangyangshan alkaline granite has ?Nd(t) values ranging from +2.61 to +3.46 and a relatively younger two-stage Nd model age values ranging from 906 to 975 Ma, respectively. Based on these data, we inferred that the Guanzishan nepheline syenites and granites were formed from fractional crystallization of OIB-like basic magmas derived from upwelling of metasomatized lithospheric mantle. The Huangyangshan quartz syenite and granite on the other hand, were formed from similar magmas through fractional crystallization with low input from the ancient crustal rocks. Typically, the rocks exhibit A1-type granite affinity and classified as within plate granites associated with the Ordovician crustal extension and the Silurian rifting. | Hafizullah Abba Ahmed Changqian Ma Lianxun Wang Ladislav A.Palinkas Musa Bala Girei Yuxiang Zhu Mukhtar Habib | 2018 | Journal of Earth Science2018，29，5： | 5 |
| 3 | Synthesis and antiproliferative ac- tivity of coumarin- estrogen conjugates against breast cancer cell lines 显示文摘 | Musa MA Khan MO Cooperwood JS | 2009 | Lett Drug Des Diseov2009，6，2： | 1 |
| 4 | Pattern of aerobic bacteria with antimicrobial susceptibility causing communityacquimd urinary tract infection 显示文摘 | Parvin US Hossain MA Musa AK | 2009 | Mymensingh Meal J2009，18，2： | 1 |
| 5 | Pattern of aerobic bacteria with antimicrobial susceptibility causing communityacquired urinary tract infection 显示文摘 | Parvin US Hossain MA Musa AK | 2009 | Mymensingh Med J2009，18，2： | 1 |
| 6 | IL-17 and IL-22 are associated with protection against human kala azar caused by Leishmania donovani显示文摘 | Pitta Maira G R Romano Audrey Cabantous Sandrine Henri Sandrine Hammad Awad Kouriba Bouréma Argiro Laurent el Kheir Musa Bucheton Bruno Mary Charles El-Safi Sayda Hassan Dessein Alain | 2009 | Journal of Clinical Investigation2009，，8： | 1 |
| 7 | Pregnancy outcome in patients with previous uterine rupture显示文摘 | Usta IM Hamdi MA Musa AA | 2007 | Acta Obstet Gynecol Scand2007，86，2： | 1 |
| 8 | Translation, validation and psycho- metric properties of Bahasa Malaysia Version of the Depression Anxiety and Stress Scales(DASS) 显示文摘 | Musa R Fadzil MA Zain Z | 2007 | Asian Journal of Psychi- atry2007，8，2： | 1 |
| 9 | Double blind ran- domized controlled trial comparing misoprostol and oxy tocin for management of the third stage of labor in a Ni- gerian hospital显示文摘 | Musa AO Ijaiya MA Saidu R | 2015 | Int J Gynaecol Obstet2015，129，3： | 1 |
| 10 | Pregnancy outcome in patients with previous uterine rupture显示文摘 | Usta IM Hamdi MA Musa AA | 2007 | Acta Obstet Gynecol Scand2007，86，2： | 1 |
| 11 | Pergnancy outcome in patients with previous uterine rupture 显示文摘 | IUsta IM Hamdi MA Musa AA et d | 2007 | Acta Obstet Gy- necol Seand2007，86，2： | 1 |
| 12 | Comparison between DOT ELA IgM and Widal Test as early Diagnosis of Typhoid Fever显示文摘 | Begum Z Hossain MA Musa AK | 2009 | My- mensingh Med J2009，18，1： | 1 |
| 13 | Double-blind randomized controlled trial comparing misoprostol and oxytocin for management of the third stage of labor in a Nigerian hospital显示文摘 | Musa AO Ijaiya MA Saidu R | 2015 | Int J Gynaecol Obstet2015，129，3： | 1 |
| 14 | Pregnancy outcome in patients with previous uterine rupture显示文摘 | Usta IM Hamdi MA Musa AA | 2007 | Acta Obstet Gyne- col Scand2007，86，2： | 1 |
| 15 | Effects of pre-aging on defects evolution and magnetic properties of Sm-Co-Fe-Cu-Zr magnets显示文摘The heterogeneous precipitation in the 2:17-type Sm-Co-Fe-Cu-Zr permanent magnets has been found to contain complex formation and dissociation of defects.Though low-temperature pre-aging has been utilized to promote the precipitate nucleation by the enlarged chemical driving force,how the defects evolve after pre-aging and how the possibly changed defects state affects the subsequent precipitation behavior remain unclear.In this work,a model magnet Sm25Co47.9Fe18.5Cu5.6Zr3.0(wt%)was selected to study.Through comparison with the as-solution-treated state,it is found that pre-aging for 2 h at 550℃reduces the defects density,which was characterized by less cell boundaries(i.e.,larger cell size)and less basal stacking faults inside the cells(i.e.,higher 2:17 R ordering degree).Further studies reveal that after aging for the same time(10 h)at the same temperature(830℃),the reduced density of defects by preaging also leads to slower precipitation/phase transformation kinetics when co mpared with the non-preaged one,which was characterized by the lower 2:17 R ordering degree and smaller coercivity for the former.These findings suggest that pre-aging has a strong influence on the density of defects and their evolution during subsequent isothermal aging process,which should be carefully considered to tailor the microstructure and magnetic properties of Sm-Co-Fe-Cu-Zr magnets. | Munzali Musa Xin Song Yao Liu Fang Wang Jiuping Fan Tianyu Ma Xiaobing Ren | 2022 | Journal of Rare Earths2022，40，12： | 0 |
| 16 | Changes of microRNA profile after Yimusake treatment in ED rat model显示文摘Erectile dysfunction(ED)is a multifactor disease that has profound effects on man’s quality of life.The Yimusake(in tablet form)is a Chinese traditional medicine that has been clinically demonstrated to be effective in treating ED.The Yimusake(in tablet form)is composed of radices salep,musk,ambergris,stigma croci,Strychnos nux-vomica L,frankincense,penis and testis of ox,nutmeg,Syzygium aromaticum,Alpinia platychilushas,which has been demonstrated clinically efficiency and is worth promoting,but the mechanism is still unclear[1,2].Altered expressions of microRNAs(miRNAs)have been observed in the corpus cavernosum(CC)of obese diabetes mellitus mice with ED and in vasculogenic ED[3,4].For example,miR-1937c,miR-151-5p,miR-153,and miR-425 were validated to be involved in high fat diet-induced vasculogenic ED[4].Higher expression levels of miR-93,miR-320,and miR-16 were detected in the serum of diabetic ED patients[5].miR-1,miR-200a,miR-203,and miR-206 play important roles in the development of aging-related ED by regulating the endothelial nitric oxide(NO)synthase,NO,and protein kinase G and the prostaglandin E1 and protein kinase A pathways[6].Furthermore,the expressions of miR-328a,miR-342,and miR-376b were found to be upregulated in the CC of obese rats with ED[7].Recently,we established an ED rat model by using cold stress combined with feeding with an estrogen-like diet(spinach and coriander)to explore the alteration of miRNAs in the ED model induced by cold stress combined with estrogen-like diet to better understand the pathophysiology of ED. | Ping Jiang Musa Aimaier Maowulan Maimaitiyiming Fengxia Liu Wenjing Ma Meiheriguli Sataer Siyiti Amuti Tianyu Wang Adilijiang Yiming | 2019 | Acta Biochimica et Biophysica Sinica2019，51，8： | 0 |
| 17 | Petrogenesis and Significance of the Jebel Dumbier Alkaline-Carbonatite Complex from North Margin of Nuba Mountains, Sudan显示文摘1 Introduction Scientific study of the geology and mineral resources in Sudan is rather limited.Jebel Dumbier is the first identified carbonatite-bearing alkaline complex in Sudanby El Sharkawi&El Raba’a in 1973.It is located in Northern Kordofan Province on the northeastern margin of the Nuba Mountains.The complex exposed as | WANG Lianxun MA Changqian MUSA A.S. Mushaal ABDALLSAMED I.M. Mohammmed | 2017 | Acta Geologica Sinica(English Edition)2017，91，S1： | 0 |
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