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Effects of Ni substitution on multiferroic properties in Bi_(5)FeTi_(3)O_(15) ceramics

Chinese Physics B 2021年第10期30卷 595-602页

作者： Hui Sun Jiaying Niu Haiying Cheng Yuxi Lu zirou xu Lei Zhang Xiaobing Chen College of Physics Science and Technology Yangzhou UniversityYangzhou 225002China School of Sino-German Engineering Shanghai Technical Institute of Electronics&InformationShanghai 201411China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China

The single-phase multiferroic Bi_(5)Fe_(1−x)NixTi_(3)O_(15)(BFNT-x,x=0,0.1,0.2,0.3,0.4,and 0.5)ceramics were synthesized by a sol-gel auto-combustion method,and their microstructures,ferroelectric,magnetic,and dielectric properties were investigated in *** samples belong to layer-perovskited Aurivillius phase containing four perovskite units sandwiched between two Bi-O *** substitution can not only improve ferroelectricity but also enhance the magnetic *** BFNT-0.2 sample shows the largest remnant polarization(2Pr∼11.6µC/cm^(2))and the highest remnant magnetization(2Mr∼0.244 emu/g).The enhancement of the magnetic properties may mainly originate from the spin canting of Fe/Ni-O octahedra via Dzyaloshinskii-Moriya(DM)*** order to explore the influence of valance state of magnetic ions on the properties,the x-ray photoelectron spectroscopy was carried ***,structural,ferroelectric,and magnetic transitions were also investigated.

关键词： layer-perovskited oxides ferroelectricity weak ferromagnetism phase transition

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Wheat bran inclusion level impacts its net energy by shaping gut microbiota and regulating heat production in gestating sows

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Animal Nutrition 2023年第4期15卷 45-57页

作者： Song xu zirou Yu Zongliang Li Zijie Wang Chenyu Shi Jian Li Fenglai Wang Hu Liu State Key Lab of Animal Nutrition China Agricultural UniversityNo.2 Yuanmingyuan West RoadBeijing100193China

An accurate estimation of net energy(NE)of wheat bran is essential for precision feeding of ***,the effects of inclusion level on NE of wheat bran have not been *** level was hypothesized to impact NE of wheat bran by regulating gut microbiota and partitioning of heat ***,twelve multiparous sows(Yorkshire×Landrace;2 to 4 parity)were assigned to a replicated 3×6 Youden square with 3 successive periods and 6 diets in each *** experiment included a corn-soybean meal diet(WB0)and five diets including 9.8%(WB10),19.5%(WB20),29.2%(WB30),39.0%(WB40)and 48.7%wheat bran(WB50),*** period included 6 d of adaptation to diets followed by 6 d for heat production measurement using open-circuit respiration *** with other groups,WB30,WB40,and WB50 enriched different fiber-degrading bacteria genera(P<0.05).Apparent total tract digestibility of neutral detergent fiber and acid detergent fiber of wheat bran were greater in WB30 and WB40(P<0.05).Physical activity(standing and sitting)decreased as inclusion level increased(P=0.04),which tended to decrease related heat production(P=0.07).Thermic effect of feeding(TEF)was higher in WB50 than other treatments(P<0.01).Metabolizable energy of wheat bran was similar among treatment groups(except for WB10).NE of wheat bran conformed to a quadratic regression equation with inclusion level(R^(2)=0.99,P<0.01)and peaked at an inclusion level of 35.3%.In conclusion,increasing inclusion level decreased energy expenditure of sows on physical activity and promoted growth of fiber-degrading bacteria,which improved energy utilization of *** of wheat bran fiber by Prevotellaceae_UCG-003 and norank_f_Paludibacteraceae might increase ***,sows utilized energy in wheat bran most efficiently at an inclusion level of 35.3%.

关键词： Gestating sow Gut microbiota Heat production Inclusion level Net energy Wheat bran

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LAMC2 regulates proliferation, migration, and invasion mediated by the Pl3K/AKT/mTOR pathway in oral

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Oncology Research 2023年第4期31卷 481-493页

作者： FAYU SHAN LANLAN LIANG CHONG FENG HONGBAO xu zirou WANG WEILI LIU LINGLING PU ZHAOLI CHEN GANG CHEN XINXING WANG Department of Environmental Medicine Tianjin Institute of Environmental and Operational MedicineTianjin300070China School and Hospital of Stomatology Tianjin Medical UniversityTianjin300050China

Background:Oral squamous cell carcinoma(OSCC)is a common malignant ***,Laminin Gamma 2(LAMC2)has been shown to be abnormally expressed in OSCC;however,how LAMC2 signaling contributes to the occurrence and development of OSCC and the role of autophagy in OSCC has not been fully *** study aimed to analyze the role and mechanism of LAMC2 signaling in OSCC and the involvement of autophagy in ***:To explore the mechanism by which LAMC2 is highly expressed in OSCC,we used small interfering RNA(siRNA)to knock down LAMC2 to further observe the changes in the signaling ***,we used cell proliferation assays,Transwell invasion assays,and wound-healing assays to observe the changes in OSCC proliferation,invasion,and ***-LC3 was used to detect the level of autophagy intensity.A cell line-derived xenograft(CDX)model was used to detect the effect of LAMC2 on tumor growth in ***:This study found that the level of autophagy was correlated with the biological behavior of *** downregulation of LAMC2 activated autophagy and inhibited OSCC proliferation,invasion,and metastasis via inhibiting the PI3K/AKT/mTOR ***,autophagy has a dual effect on OSCC,and the synergistic downregulation of LAMC2 and autophagy can inhibit OSCC metastasis,invasion,and proliferation via the PI3K/AKT/mTOR ***:LAMC2 interacts with autophagy to regulate OSCC metastasis,invasion,and proliferation via the PI3K/AKT/mTOR ***2 down-regulation can synergistically modulate autophagy to inhibit OSCC migration,invasion,and proliferation.

关键词： LAMC2 OSCC Autophagy PI3K/AKT/mTOR pathway 3-Methyladenine Rapamycin

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多水域水面垃圾清洁器的设计

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机械管理开发 2024年第11期39卷 85-87+90页

作者：徐瑞泽冯永利幸泽峰梁木王子柔许传才华北理工大学机械工程学院

针对目前水面垃圾清洁以人工方式为主，存在清洁效率低，成本高等问题，设计了一种多水域水面垃圾清洁器。利用三维实体建模软件Solid Work建立垃圾清洁器的模型。该清洁器由打捞系统和回收系统组成，通过三船联动的工作模式，打捞系统... 详细信息

针对目前水面垃圾清洁以人工方式为主，存在清洁效率低，成本高等问题，设计了一种多水域水面垃圾清洁器。利用三维实体建模软件Solid Work建立垃圾清洁器的模型。该清洁器由打捞系统和回收系统组成，通过三船联动的工作模式，打捞系统配备可伸缩收集网将水面垃圾进行聚集，回收系统利用传送带将垃圾送至存储仓暂时储存，实现对水面垃圾的打捞回收，最后将垃圾输送至特定区域进行处理。通过三维虚拟装配和实物模型测试，验证了该设计方案具有创新性与合理性，提高了水面垃圾清洁的效率，对水体的保护和治理工作具有一定意义。

关键词：水面垃圾清洁器三船联动子母船

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