|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Numerical investigation of turbulent flow coherent structures in annular jet pumps using the LES method显示文摘Annular jet pumps that are used in hydraulic machinery have a very simple structure but very complex internal flow fields. Large eddy simulations were used to study the coherent structures in the turbulent flows in annular jet pumps with various area ratios,m. The distribution, movement and evolution of the coherent structure in the annular jet pumps are described based on vorticity,pressure and Q criteria. All the criteria demonstrate that the vortexes are mainly distributed in the recirculation region and in the mixing and the boundary layers, which have large velocity gradients. The various characteristics of the coherent structures are shown by the different criteria with the vorticity criterion describing the distribution, movement and evolution of the vortexes,the pressure criterion describing the movement and the Q criterion describing the vortex movement and evolution. The vorticity variation in the spanwise direction is larger than the variation in the streamwise direction; however, the streamwise vortex is the main mechanism driving the entrainment of the secondary flow and the mixing. The annular jet pump with m=3.33 had a higher vortex shedding frequency(about 1000 Hz) than that with m=1.72(313–417 Hz). The azimuthal instability is the main reason for the generation of the streamwise vortex from the spanwise vortex. The vortex structures in the recirculation region are very strong,but small and disordered with no periodic vortex rings. | XU MaoSen YANG XueLong LONG XinPing LYU Qiao JI Bin | 2018 | Science China(Technological Sciences)2018，61，1： | 8 |
| 2 | Stability study on naturally filling body in gob-side entry retaining显示文摘In the construction of the filling gob-side entry retaining in a lane, we utilize the self-slide natural phenomenon of a falling gangue in an inclined coal seam goaf. First, we put the falling gangue of goaf above the laneway and made it the main filling material by adopting the measurement of flexible supporting system combined with those of rigid supporting system. Then we made the filling material gunited and solidified to maintain the filling goal of the gob-side entry retaining beside the lane. Considering the law of energy conservation and law of pressure distribution for retaining the active and static soil of the wall, we analyzed the reliability of a gangue blocking facilities and the stability of the filling material in the lane. We analyze the figures to see the stability. The result shows that the gangue block supporting system is reliable, and has been successfully practically applied. | Zhou Baojing Xu Jinhai Zhao Maosen Zeng Qinglin | 2012 | International Journal of Mining Science and Technology2012，22，3： | 8 |
| 3 | A Fully Self-Healing Piezoelectric Nanogenerator for Self-Powered Pressure Sensing Electronic Skin显示文摘As an important way of converting mechanical energy into electric energy,a piezoelectric nanogenerator(PENG)has been widely applied in energy harvesting as well as self-powered sensors in recent years.However,its robustness and durability are still severely challenged by frequent and inevitable mechanical impacts in real application environments.Herein,a fully selfhealing PENG(FS-PENG)as a self-powered pressure sensing electronic skin is reported.The self-healing piezoelectric composite and self-healing Ag NW electrode fabricated through mixing piezoelectric PZT particles and conductive Ag NWs into self-healing polydimethylsiloxane(H-PDMS)are assembled into the sandwich structure FS-PENG.The FS-PENG could not only effectively convert external stimulation into electrical signals with a linear response to the pressure but also retain the excellent self-healing and stable sensing property after multiple cycles of cutting and self-healing process.Moreover,a self-healing pressure sensor array composed of 9 FS-PENGs was attached on the back of the human hand to mimic the human skin,and accurate monitoring of the spatial position distribution and magnitude of the pressure was successfully realized. | Maosen Yang Jinmei Liu Dong Liu Jingyi Jiao Nuanyang Cui Shuhai Liu Qi Xu Long Gu Yong Qin | 2021 | Research2021，，1： | 6 |
| 4 | Damage identification for beams in noisy conditions based on Teager energy operator-wavelet transform modal curvature显示文摘 | Maosen Cao Wei Xu Wieslaw Ostachowicz Zhongqing Su | 2013 | Journal of Sound and Vibration2013，，： | 2 |
| 5 | Identificationof multiple damage in beams based on robust curvature mode shapes 显示文摘 | Cao Maosen Radzienski M Xu Wei | 2014 | Mechanical Systems and Signal Process- ing2014，46，2： | 1 |
| 6 | A novel missense variant in ACAA1 contributes to early-onset Alzheimer’s disease,impairs lysosomal function,and facilitates amyloid-p pathology and cognitive decline显示文摘Alzheimer’s disease(AD)is characterized by progressive synaptic dysfunction,neuronal death,and brain atrophy,with amyloid-p(Ap)plaque deposits and hyperphosphorylated tau neurofibrillary tangle accumulation in the brain tissue,which all lead to loss of cognitive function.Pathogenic mutations in the well-known AD causal genes including APP,PSEN1,and PSEN2 impair a variety of pathways,including protein processing,axonal transport,and metabolic homeostasis.Here we identified a missense variant rs117916664(c.896T>C,p.Asn299Ser[p.N299S])of the acetyl-CoA acyltransferase 1(ACM1)gene in a Han Chinese AD family by whole-genome sequencing and validated its association with early-onset familial AD in an independent cohort.Further in vitro and in vivo evidence showed that ACAA1 p.N299S contributes to AD by disturbing its enzymatic activity,impairing lysosomal function,and aggravating the Ap pathology and neuronal loss,which finally caused cognitive impairment in a murine model.Our findings reveal a fundamental role of peroxisome-mediated lysosomal dysfunction in AD pathogenesis. | Rongcan Luo Yu Fan Jing Yang Maosen Ye Deng-Feng Zhang Kun Guo Xiao Li Rui Bi Min Xu Lu-Xiu Yang Yu Li Xiaoqian Ran Hong-Yan Jiang Chen Zhang Liwen Tan Nengyin Sheng Yong-Gang Yao | 2021 | Signal Transduction and Targeted Therapy2021，6，9： | 1 |
| 7 | Monitoring and Evaluation of Present Situation of Environmental Quality in the Sea Area near the Aojiang Estuary in Wenzou显示文摘Based on the monitoring results of environmental quality in the sea area near the Aojiang estuary in Wenzou during 2010-2012,the present situation of environmental quality in the sea area was analyzed and evaluated. The results show that p H,DO,CODMn,petroleum,and heavy metals( Cu,Pb,Zn,Cd,Hg,As and Cr) in the sea area near the Aojiang estuary did not exceed the second-class standard of Seawater Quality Standard( GB 3097-1997),but both inorganic nitrogen and reactive phosphate in the sea area exceeded the second-class standard seriously,and the water quality of the sea area was in an eutrophic state; domestic sewage and fertilizer loss were the main sources of nitrogen and phosphorus. The standard index of most evaluation factors of sediment quality except for Zn was smaller than 1,meeting the demands of sediment quality for environmental protection. | Ye Maosen Yang Dan Zhang Rongbao Xu Hengtao Zhang Haisheng Yao Dongping Ye Xinrong | 2017 | Meteorological and Environmental Research2017，8，3： | 1 |
| 8 | Giant low-field magnetocaloric effect in ferromagnetically ordered Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds显示文摘Magnetocaloric material is the key working substance for magnetic refrigerant technology,for which the low-field and low-temperature magnetocaloric effect(MCE)performance is of great importance for practical applications at low temperatures.Here,a giant low-field magnetocaloric effect in ferromagnetically ordered Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds was reported,and the magnetic structure was characterized based on low-temperature neutron powder diffraction.With increasing Tm content from 0 to 1,the Curie temperature of Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds decreases from 16.0 K to 3.6 K.For Er_(0.7)Tm_(0.3)Al_(2) compound,it showed the largest low-field magnetic entropy change(–SM)with the peak value of 17.2 and 25.7 J/(kg K)for 0–1 T and 0–2 T,respectively.The(–SM)max up to 17.2 J/(kg K)of Er0.7Tm0.3Al2 compound for 0–1 T is the largest among the intermetallic magnetocaloric materials ever reported at temperatures below 20 K.The peak value of adiabatic temperature change(Tad)max was determined as 4.13 K and 6.87 K for 0–1 T and 0–2 T,respectively.The characteristic of second-order magnetic transitions was confirmed on basis of Arrott plots,the quantitative criterion of exponent n,rescaled universal curves,and the mean-field theory criterion.The outstanding low-field MCE performance with low working temperatures indicates that Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds are promising candidates for magnetic cooling materials at liquid hydrogen and liquid helium temperatures. | Shuxian Yang Xinqi Zheng Dingsong Wang Juping Xu Wen Yin Lei Xi Chaofan Liu Jun Liu Jiawang Xu Hu Zhang Zhiyi Xu Lichen Wang Yihong Yao Maosen Zhang Yichi Zhang Jianxin Shen Shouguo Wang Baogen Shen | 2023 | Journal of Materials Science & Technology2023，，15： | 0 |
| 9 | Heuristic Backtrack Algorithm for Structural Match and Its Applications显示文摘The concept WALKING on structures is proposed, and the partial ordering between a structure and a query structure (substructure) is also created by means of WALKING. Based upon the above concepts, authors create the Heuristic-Backtracking Algorithm (HBA) of structural match with high performance. In the last part of the paper, the applications of HBA in molecular graphics, synthetic planning, spectrum simulation , the representation and recognition of general structures are discussed. | Xu Jun and Zhang Maosen (The Cent-re of Structure and Element Analysis, University of Science and Technology of China, Hefei) | 1989 | Chemical Research in Chinese Universities1989，5，2： | 0 |
| 10 | Cohomology of Lie Conformal Algebra Vir× Cur g显示文摘In this article,we compute cohomology groups of the semisimple Lie conformal algebra S=Vir × Cur g with coefficients in its irreducible modules for a finite-dimensional simple Lie algebra g. | Maosen Xu Yan Tan Zhixiang Wu | 2021 | Algebra Colloquium2021，28，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员