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| 1 | Improved Stiffness Modeling for An Exechon‑Like Parallel Kinematic Machine(PKM)and Its Application显示文摘Hole drilling or contour milling for the large and complex workpieces such as automobile panels and aircraft fuselages makes a high combined demand on machining accuracy,stiffness and workspace of machining equipment.Therefore,a 5-DOF(degrees of freedom)parallel kinematic machine(PKM)with redundant constraints is proposed.Based on the kinematics analysis of the parallel mechanism using intermediate variables,the kinematics problems of the PKM are solved through equivalent kinematics model.The structural stiffness matrix method is adopted to model the stiffness of the parallel mechanism of the PKM,where the stiffness of each joint and branch component is obtained by stiffness formula and finite element analysis.And the stiffness model of the parallel mechanism is improved by correction coefficient matrix,each element of which is constructed as a polynomial function of three independent end variables of the parallel mechanism.The terminal stiffness matrices obtained by simulation result are used to determine the coefficients of polynomial function by least square fitting to describe the correction coefficient over the workspace of the parallel mechanism quantitatively.The experiment results prove that the modification method can greatly improve the stiffness model of the parallel mechanism.To enhance the machining accuracy of the PKM,the proposed kinematics model and the improved stiffness model are utilized to optimize the working stiffness of parallel machine by searching the best relative position of parallel machine and workpiece.A plate workpiece taken as example is examined in the case study section,which demonstrates the effectiveness of optimization method. | Nanyan Shen Liang Geng Jing Li Fei Ye Zhuang Yu Zirui Wang | 2020 | Chinese Journal of Mechanical Engineering2020，33，3： | 4 |
| 2 | Quantifying the adsorption and uptake of CuO nanoparticles by wheat root based on chemical extractions显示文摘Extensive application of metal nanoparticles is attracting more attention because of their potential environmental risks.Many studies have focused on the uptake of metal nanoparticles (NPs) by plant,but the adsorption of nanoparticles on root surface is often mistakenly regarded as their uptake.This study optimized the methods to distinguish the adsorption and uptake of CuO-NPs on the wheat root by applying different metal competing ions (Na +,Mg 2+,and La 3+ ),surfactant (i.e.,sodium dodecyl benzene sulfonate,SDBS),or complexing agents like NaOAc and Na 4 EDTA,as well as ultrasonic technique.The results indicated that some CuO-NPs is strongly adsorbed on the plant root surface,and part of them by mechanical adhesion.Competing ions could not desorb the CuO-NPs from the root surface,while NaOAc and Na 4 EDTA well dissolved the adsorbed CuO-NPs.In addition,the uptake and adsorption of CuO-NPs increased with increasing exposure concentrations of CuO-NPs in the range of 5-200 mg/L.The amount of CuO-NPs adsorption is always lower than that of their uptake. | Dongmei Zhou Shengyang Jin Lianzhen Li Yu Wang Nanyan Weng | 2011 | Journal of Environmental Sciences2011，23，11： | 3 |
| 3 | Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression显示文摘Acoustic emission and digital image correlation were used to study the spatiotemporal evolution characteristics of crack extension of soft and hard composite laminated rock masses(SHCLRM)containing double fissures under uniaxial compression.The effects of different rock combination methods and prefabricated fissures with different orientations on mechanical properties and crack coalescence patterns were analyzed.The characteristics of the acoustic emission source location distribution,and frequency changes of the crack evolution process were also investigated.The test results show that the damage mode of SHCLRM is related to the combination mode of rock layers and the orientation of fractures.Hard layers predominantly produce tensile cracks;soft layers produce shear cracks.The first crack always sprouts at the tip or middle of prefabricated fractures in hard layers.The acoustic emission signal of SHCLRM with double fractures has clear stage characteristics,and the state of crack development can be inferred from this signal to provide early warning for rock fracture instability.This study can provide a reference for the assessment of the fracture development status between adjacent roadways in SHCLRM in underground mines,as well as in roadway layout and support. | Dong ZHOU Yicheng YE Nanyan HU Weiqi WANG Xianhua WANG | 2021 | Frontiers of Structural and Civil Engineering2021，15，6： | 2 |
| 4 | 比较B超定位和常规体表定位法静脉输液港植入术在乳腺癌患者中的应用(英文)显示文摘Objective:The aim of this study was to compare the anatomic-landmark and ultrasound-guided techniques in the placement of an internal jugular vein port in patients with advanced breast cancer.Methods:Between March 2010 and October 2010,60 patients with advanced breast cancer underwent central venous port placement for the delivery of chemotherapy,preferably through the internal jugular vein.Patients were randomly assigned to either the anatomic-landmark or the ultrasound-guided group.Failure on first attempt,number of attempts until successful catheterization,time to successful placement,the accordance of the two placement approaches,and the demographics of each patient were recorded.Results: The consistency of the direction of two lines drawn using the anatomic-landmark and ultrasound-guided techniques or of the diameter of the internal jugular vein as determined by the two approaches was 85%(51/60).The rate of successful placement at first attempt was higher in the ultrasound group than in the anatomic-landmark group(P<0.05).A greater number of attempts and longer time to successful port placement were needed in the latter(P<0.05).Conclusion:The findings of this study indicate that,in the placement of an internal jugular vein port,the ultrasound(US)-guided technique has several advantages over the anatomic-landmark technique. | Nanyan Rao Jiannan Wu Shunrong Li Liang Jin Weijuan Jia Heran Deng Fengxi Su | 2011 | The Chinese-German Journal of Clinical Oncology2011，10，12： | 2 |
| 5 | A subspace multiuser beamforming algorithm for the downlink in mobile communications显示文摘 | Nanyan W Panajotis A Andreas A | 2006 | IEEE Transactions on Analog and Digital Signal Processing2006，53，8： | 1 |
| 6 | Soybean-derived phosphatidylinositol recovers amyloid beta protein-induced neurotoxicity in cultured rat hippocampal neurons显示文摘 | Zhang Nanyan Kitagawa K Wu Bo | 2003 | Neurosci Lett2003，350，2： | 1 |
| 7 | Modulatory effects of one polysaccharide from Acanthopanax senticosus in alloxan-induced diabetic mice显示文摘 | Jianfang Fu Jufang Fu Yang Liu Ruiyu Li Bin Gao Nanyan Zhang Boliang Wang Yizhan Cao Kaoshan Guo Yanyang Tu | 2011 | Carbohydrate Polymers2011，，3： | 1 |
| 8 | Subcellular Cd distribution and its correlation with antioxidant enzymatic activities in wheat ( Triticum aestivum ) roots显示文摘 | Li Dandan Zhou Dongmei Wang Peng Weng Nanyan Zhu Xiangdong | 2010 | Ecotoxicology and Environmental Safety2010，，4： | 1 |
| 9 | Automatic tracing and measuring crankpin surface for the initia orentation in non-circular grinding显示文摘 | SHEN Nanyan LI Jing WANG Xinling | 2012 | Advanced Materials Research2012，569，： | 1 |
| 10 | Lactococcus lactis M4, a potential host for the expression of heterologous proteins 显示文摘 | Nanyan Noreen Wei Yeng Hooi Ali Baradaran | 2011 | Microbial Cell Factories2011，10，： | 1 |
| 11 | What drives the change of nitrogen and phosphorus loads in the Yellow River Basin during 2006-2017?显示文摘The Yellow River Basin (YRB) plays a very important role in China’s economic and social development and ecological security.In particular,the ecosystem of the YRB is sensitive to climate change.However,the change of nutrient fluxes in this region during the past years and its main driving forces remain unclear.In this study,a hydrologic model R System for Spatially Referenced Regressions on Watershed Attributes (RSPARROW) was employed to simulate the spatio-temporal variations in the fluxes of total nitrogen (TN) and total phosphorus (TP) during the period of 2006-2017.The results suggested that the TN and TP loads increased by 138%and 38%during 2006-2014,respectively,and decreased by 66%and 71%from 2015 to 2017,respectively.During the period of 2006-2017,the annual mean fluxes of TN and TP in the YRB were in the range of 3.9 to 591.6 kg/km^(2)/year and 1.7 to 12.0 kg/km^(2)/year,respectively.TN flux was low in the upstream area of the Yellow River,and presented a high level in the middle and lower reaches.However,the flux of TP in Gansu and Ningxia section was slightly higher than that in the lower reaches of the Yellow River.Precipitation and point source are the key drivers for the inter-annual changes of TN loads in most regions of the YRB.While the inter-annual variations of TP loads in the whole basin are mainly driven by the point source.This study demonstrates the important impacts of climate change on nutrient loads in the YRB.Moreover,management measures should be taken to reduce pollution sources and thus provide solid basis for control of nitrogen and phosphorus in the YRB. | Jiaqi Zheng Xianghui Cao Chunzi Ma Nanyan Weng Shouliang Huo | 2023 | Journal of Environmental Sciences2023，，4： | 1 |
| 12 | Evaluating mechanisms for plant-ion (Ca2+, Cu2+, Cd2+ or Ni2+) interactions and their effectiveness on rhizotoxicity显示文摘 | Peng Wang Dong-Mei Zhou Willie J. G. M. Peijnenburg Lian-Zhen Li Nanyan Weng | 2010 | Plant and Soil (-)2010，，1： | 1 |
| 13 | A NovelMethod for Kinematic Optimization of CamshaftNon-circular Grinding 显示文摘 | Li Jing Zhang Wei Shen Nanyan | 2013 | Advanced MaterialsResearch2013，，： | 1 |
| 14 | A new DOA estimation technique based on subarray beamforming 显示文摘 | WANG Nanyan AGATHOKLIS P ANTONIOU A | 2006 | IEEE Transactions on Signal Processing2006，54，9： | 1 |
| 15 | Fractal analysis of bone texture: a screening tool for stress fracture risk? 显示文摘 | Prouteau S Ducher G Nanyan P | 2004 | Eur J Clin Invest2004，34，2： | 1 |
| 16 | Influence of temperature and solar radiation on grain yield and quality in irrigated rice system显示文摘 | Deng Nanyan Ling Xiaoxia Sun Yang | 2015 | European Journal of Agronomy2015，64，： | 1 |
| 17 | Subcellular Cd distribution and its correlation with antioxidant enzymatic activities in wheat ( Triticum aestivum ) roots显示文摘 | Li Dandan Zhou Dongmei Wang Peng Weng Nanyan Zhu Xiangdong | 2010 | Ecotoxicology and Environmental Safety2010，，4： | 1 |
| 18 | A Successful Visit to Germany显示文摘At the invitation of the Institute of Voca-tional Training of the Nordhein-Westfallen State(NWS),a CAFIU delegation led by Mr.Zhang Zhiming,Council Member of CAFIU,visited Germany from October 21 to 30,1996.The main purpose of the visit was to make a study of the vocational training known as a“secret weapon”in German economic development. | He Liansheng Pu Nanyan | 1996 | International Understanding1996，，4： | 0 |
| 19 | News in Brief显示文摘Set up in 1960s,the company has maintained trade contacts with China since then,meanwhile it pays great attention to personnel exchanges be-tween China and Japan.the visit was to investigate the folk medicine in Tibet and health protection medicines,and to explore the feasibility to expand cooperation in medicine with China in the future. | Li Jin Pu Nanyan | 1996 | International Understanding1996，，4： | 0 |
| 20 | Discussion on the Application of Industry-Finance Integration in Warehousing Enterprises显示文摘In recent years,the transformation of warehousing enterprises has garnered widespread attention.The integration of industry and finance in management accounting can provide financial management support for the transformation of warehousing enterprises,deliver accurate and effective financial and business information,facilitate managers’decision-making,and achieve the benign development of enterprises.This paper discusses the problems in the application of industry-finance integration in warehousing enterprises,including the low degree of informatization,inefficient internal cost control,and mismatched staff quality,and then proposes corresponding measures,such as establishing and improving information systems,establishing a comprehensive budget management system,and establishing management measures for the integration of industry and finance in warehousing enterprises,so as to strengthen the application of industry-finance integration in warehousing enterprises. | Luwen Zhong Nanyan Zhou Zhizheng Wang | 2022 | Proceedings of Business and Economic Studies2022，5，4： | 0 |
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