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| 1 | Estimating DOA and polarization with spatially spread loop and dipole pair array显示文摘The nonuniform L-shaped spatially spread loop and dipole(SSLD) array whose inter-element spacing is greater than half a wavelength is studied. A joint parameter estimation algorithm of direction of arrival(DOA), frequency and polarization is presented for plane-wave signals. The direct sampling and the corresponding delayed sampling data are used to construct the data correlation matrix. On the basis of the subspace theory and the least square method, the frequency and the steering vector of the whole array are obtained. According to the relationship of the array manifold vector between electric dipoles and magnetic loops,the polarization parameters are given. The unambiguous phase estimates are acquired by applying virtual baseline array transformation to the spatial steering vectors, and they are used as coarse references to disambiguate the cyclic phase ambiguities in phase differences between two adjacent array elements on the array,then the high accuracy DOA estimates are obtained. Closed-form solutions for each parameter are obtained. This method has advantages of lower calculation complexity and no parameter matching. The experiment results verify the effectiveness and feasibility of the presented algorithm. | Lanmei Wang Zhihai Chen Guibao Wang Xuan Rao | 2015 | Journal of Systems Engineering and Electronics2015，26，1： | 5 |
| 2 | Discrete Stress-strength Interference Model of Reliability Analysis under Multi-operating Conditions显示文摘The conventional stress-strength interference(SSI) model is a basic model for reliability analysis of mechanical components. In this model, the component reliability is defined as the probability of the strength being larger than the stress, where the component stress is generally represented by a single random variable(RV). But for a component under multi-operating conditions, its reliability can not be calculated directly by using the SSI model. The problem arises from that the stress on a component under multi-operating conditions can not be described by a single RV properly. Current research concerning the SSI model mainly focuses on the calculation of the static or dynamic reliability of the component under single operation condition. To evaluate the component reliability under multi-operating conditions, this paper uses multiple discrete RVs based on the actual stress range of the component firstly. These discrete RVs have identical possible values and different corresponding probability value, which are used to represent the multi-operating conditions of the component. Then the component reliability under each operating condition is calculated, respectively, by employing the discrete SSI model and the universal generating function technique, and from this the discrete SSI model under multi-operating conditions is proposed. Finally the proposed model is applied to evaluate the reliability of a transmission component of the decelerator installed in an aeroengine. The reliability of this component during taking-off, cruising and landing phases of an aircraft are calculated, respectively. With this model, a basic method for reliability analysis of the component under complex load condition is provided, and the application range of the conventional SSI model is extended. | AN Zongwen HUANG Hongzhong WANG Zhonglai ZHANG Xiaoling WANG Guibao | 2010 | Chinese Journal of Mechanical Engineering2010，23，3： | 5 |
| 3 | Preparation and characterization of porous titanium using space-holder technique显示文摘基于钛的多孔的材料能在结构的应用被使用并且医药因为他们的优秀机械性质,在提高的温度,好腐蚀抵抗和奇妙的简历相容性植入。然而,大多数过去常生产多孔的金属罐头的方法仅仅给有限的孔和控制不了的毛孔形态学。在现在的学习,用空间持有者技术的粉末冶金学的一个最新发达的方法被用来与可控制的孔制作多孔的钛。词法特征和产品的机械性质充分被调查。结果证明孔在范围 55%75% ,并且与 ∼0.72 的平均球状,吝啬的毛孔尺寸是 600 μm。高原压力在 10 MPa 和 35 MPa 之间变化。是由 Gibson-Ashby 模型,预言了高原压力与增加减少孔。 | NIU Wenjuan BAI Chenguang QIU Guibao WANG Qiang WEN Liangying CHEN Dengfu DONG Lingyan | 2009 | Rare Metals2009，28，4： | 3 |
| 4 | Significance of ST-segment elevation in lead aVR显示文摘To the editor:The aVR lead has been frequently overlooked in the past.Our study indicates that hypertrophic cardiomyopathy needs to be considered in the differential diagnosis of ST-segment elevation in aVR.A 21-year-old woman presented with breathlessness.Over a period of 14 months,she had been unable to play sports owing to dyspnea on exertion.She denied any chest pain,palpitation.She had no prior illness or cardiovascular risk factors.Her physical examination was unremarkable.The electrocardiogram obtained at the time of presentation (Figure 1) showed distinct ST-segment depressions in eight of the 12 electrocardiogram leads.The most striking electrocardiogram abnormality was characterized by a prominent ST-segment elevation of almost 2 mm (0.2 mV) in the aVR lead. | Zhao Yong Wang Jingfeng Huang Guibao Ding Chunhua | 2014 | Chinese Medical Journal2014，，16： | 2 |
| 5 | Numerical simulation of the temperature field of titania-bearing BF slag heated in a microwave oven显示文摘Considering the characteristic of selective heating of microwave and the treatment of titania-bearing BF slag, a mathematical model for the heating of a slag specimen is developed. The temperature distribution in the specimen is studied by numerical simulation. The temperature in the center of the cylindrical slag specimen is the highest and the temperature decreases when the radius increases rapidly. In this case, the temperature rising rate decreases with heating time rapidly, and it tends to zero when the heating time is up to 150 s. | Liangying Wen Chenguang Bai Guibao Qiu Jian Zhang Shengfu Zhang Zhanjun Long | 2008 | Journal of University of Science and Technology Beijing2008，15，4： | 2 |
| 6 | Structural insight into the mechanisms of targeting and signaling of focal adhesion kinase 显示文摘 | Guibao CD Zheng J | 2002 | Molecular Cellular Biol2002，22，： | 1 |
| 7 | Relation- ship between texture features and mineralogy phases in iron ore sinter based on gray-level co-occurrence matrix 显示文摘 | Lv Xuewei Bai Chenguang Qiu Guibao | 2009 | ISIJ International2009，49，5： | 1 |
| 8 | Relation- ship between minergaraphy features of sinter ore and its gray histogram 显示文摘 | Lv Xuewei Bai Chenguang Qiu Guibao | 2008 | ISIJ International2008，48，2： | 1 |
| 9 | Dehydrating and sintering of Philippine nickel laterite显示文摘 | LQ Xuewei BAI Chenguang Q1U Guibao | 2011 | Canadian Metallurgical Quarterly2011，50，1： | 1 |
| 10 | Transport and retention of phosphorus pollutants in the landscape with a traditional, multipond system 显示文摘 | Shan Baoqing Yin Chengqing Li Guibao | 2002 | Water Air and Soil Pollution2002，139，： | 1 |
| 11 | Transport and retention of phosphorus pollutants in the landscape with a traditional, multipend system 显示文摘 | Shan Baoqing Y in Chengqing Li Guibao | 2002 | Water Air and Soil Pollution2002，139，14： | 1 |
| 12 | 45 cases of esophageal cancer patients with postoperative early application of jejunum The inner tube feeding nursing显示文摘 | Huang Shiying Wang Chuhua Li Guibao | 2007 | Chinese Journal of nursing2007，42，9： | 1 |
| 13 | Reduction Behavior of Panzhihua Titanomagnetite Concentrates with Coal显示文摘 | Tu Hu Xuewei Lv Chenguang Bai Zhigang Lun Guibao Qiu | 2013 | Metallurgical and Materials Transactions B2013，，2： | 1 |
| 14 | Structmal insight into the mechanisms of targeting and signaling of focal adhesion kinase 显示文摘 | Liu G Guibao CD Zheng J | 2002 | Mol Cell Biol2002，22，： | 1 |
| 15 | Kinetics ofwater absorption by the bed of iron ore particles duringgranulation显示文摘 | L- Xuewei BAI Chenguang QIU Guibao | 2010 | Powder Technology2010，204，1： | 1 |
| 16 | Structural insight into the mechanisms of targeting and signaling of focal adhesion kinase显示文摘 | Liu G Guibao CD Zheng J | 2002 | Mol Cell Biol2002，22，8： | 1 |
| 17 | Structural insight into the mechanisms of targeting and signaling of focal adhesion kinase显示文摘 | Guibao CD Zheng J | 2002 | Mol Cell Biol2002，22，8： | 1 |
| 18 | Three dimensions of sustainability of farming practices in the North China Plain显示文摘 | Lin Zhen Jayant K. Routray Michael A. Zoebisch Guibao Chen Gaodi Xie Shengkui Cheng | 2004 | Agriculture Ecosystems and Environment2004，，3： | 1 |
| 19 | Structural insight into the mechanisms of targeting and signaling of focal adhesion kinase显示文摘 | Liu G Guibao CD Zheng J | 2002 | Mol Cell Biol2002，22，8： | 1 |
| 20 | Diet-induced mouse model of fatty liver disease and nonalcoholic steatohepatitis reflecting clinical disease progression and methods of assessment显示文摘 | Jason R. Clapper Michelle D. Hendricks Guibao Gu Carrie Wittmer Carrie S. Dolman John Herich Jennifer Athanacio Christiane Villescaz Soumitra S. Ghosh Joseph S. Heilig Carolyn Lowe Jonathan D. Roth | 2013 | AJP: Gastrointestinal and Liver Physiology2013，，7： | 1 |
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