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Reuben Strydom, Aymeric Denuelle and Mandyam V. Srinivasan
This review describes a number of biologically inspired principles that have been applied to the visual guidance, navigation and control of Unmanned Aerial System (UAS). The current limitations of UAS systems are outlined, such as the over-reliance on GP...
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Moussa Hamadache, Dongik Lee, Emiliano Mucchi and Giorgio Dalpiaz
This paper addresses the application of an image recognition technique for the detection and diagnosis of ball bearing faults in rotating electrical machines (REMs). The conventional bearing fault detection and diagnosis (BFDD) methods rely on extracting...
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Xichun Liu and Wei Chen
In order to improve the performance of the traditional constant-width herringbone grooved journal bearing in a computed tomography tube under a high-temperature environment, the present study designed a convergent herringbone grooved journal bearing (HGJ...
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Shihe Li, Baihui Fang, Dongfang Wang, Xianqing Wang, Xiaobing Man and Xuan Zhang
In order to evaluate the environmental risk caused by land application of sewage sludge, leaching characteristics of heavy metals and plant nutrients in the sewage sludge immobilized by composite phosphorus-bearing materials were investigated. Their cumu...
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Sixu Liu, Jianfei Xu, Nan Zhou, Yuzhe Zhang, Chaowei Dong and Zhuo Lv
The mining of coal resources is accompanied by a large amount of solid waste such as gangue, which seriously affects the ecological environment. The gangue grouting backfilling technique can achieve the dual goals of gangue disposal and surface deformati...
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Yiwen Wang, Peng Shen, Minli Zheng, Pengqiang Fu, Lijia Liu, Jingyue Wang and Lishan Yuan
A continuous-flow output mode of a rotary blood pump reduces the fluctuation range of arterial blood pressure and easily causes complications. For a centrifugal rotary blood pump, sinusoidal and pulsatile speed patterns are designed using the impeller sp...
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Ling Zhao, Xin Chi, Pan Li and Jiawei Ding
A rolling bearing vibration signal fault feature enhancement method based on adaptive complete ensemble empirical mode decomposition with adaptive noise algorithm (CEEMDAN) and maximum correlated kurtosis deconvolution (MCKD) is proposed to address the i...
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Walid Chaabani, Mohamed Saddek Remadna and Murad Abu-Farsakh
The presence of underground voids within a failure zone usually results in a reduction in the bearing capacity of footings. This paper presents results for the ultimate bearing capacity ratio, qu/?B, of a strip footing on top of a sand layer overlying a ...
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Bo Sung Kim, O-il Kwon, Yong Hyuk Choi and Joon Kyu Lee
Estimating the performance of foundations on rock mass is essential in designing buildings. Stability assessment of weathered rocks under foundation load is a complicated task if there is an internal opening within the foundation. This study applies fini...
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Paola Di Mascio, Alberto De Rubeis, Claudio De Marchis, Antonello Germinario, Giovanni Metta, Rosario Salzillo and Laura Moretti
Although the design of jointed plain concrete pavements could be solved by commercial software, there is still a need for simple tools to be used in feasibility studies and preliminary cost?benefit analyses. This paper analyzed and verified jointed plain...
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Ying-Chung Chen
The rotordynamics of a helical-geared rotor-bearing system were investigated. A new dynamic model for a helical-geared rotor-bearing system, which takes into account three-dimensional (3-D) motion due to rotating shaft deformation, was proposed. The prop...
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Csanád Kalmár, Ferenc Hegedus
Pág. 80 - 90
The purpose of the present study is the investigation of condition of centrifugal pumps via pressure signals. Instead of vibration measurement on the housings that is widely used in industry, our method is based on pressure signal measurement on the pres...
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Milica Djordjevic,Tadija Ðukic
Pág. 297 - 309
Abstract: The constant increase in the volume of fraud, that leave devastating effects on business performance, causes a significant preoccupation of enterprises with this problem. Being aware of the fact that the establishment of an adequate fraud risk ...
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Miriam Gonçalves Miguel, Antonio Belincanta, Carlos Jose Marques da Costa Branco, Raquel Souza Teixeira (Author)
Pág. 1579 - 1587
The behavior of horizontally loaded bored piles in a collapsible soil was studied. Experimental investigation comprised four horizontal load tests performed on two piles at each time, located at the Experimental Foundation Field at the State University o...
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Songyang Wang, Jianjun Ma, Chaosheng Wang, Fengjun Liu and Da Li
The scouring effect is widely acknowledged as a primary contributor to the weakening in the bearing performance of offshore piles; it often results in asymmetric scour patterns around the pile. To meticulously examine the impact of three-dimensional asym...
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Wanqi Wang and Wenge Qiu
Large deformations can easily occur when tunneling through weak surrounding rock with high underground stresses. Under high-stress environments, the surrounding rock stores a large amount of strain energy, and the strain energy stored in the soft and wea...
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Evgeny Chuvilin, Dinara Davletshina, Boris Bukhanov, Sergey Grebenkin and Elena Pankratova
High-latitude permafrost, including hydrate-bearing frozen ground, changes its properties in response to natural climate change and to impacts from petroleum production. Of special interest is the behavior of thermal conductivity, one of the key paramete...
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Yimin Wang, Xiuxing Sang, Kaiguang Shang, Yushuo Zhang and Jinsan Ju
The steel plate?concrete composite shear wall (SPCSW), having been widely applied to several super high-rise buildings, is currently regarded as a new type of lateral load-resisting structure. The SPCSW design does not consider the connection to the surr...
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Juan Enrique Martínez-Martínez, Felipe Pedro Álvarez-Rabanal, Mar Alonso-Martínez and Juan José del Coz-Díaz
Composite slabs with steel decking profiles are widely used in building construction. However, the literature on the fire resistance of lightweight concrete (LWC) composite slabs with steel decking is limited. In this work, the thermo-structural performa...
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Zhiqiang Zhang, Binke Chen and Qingnan Lan
A series of model tests were performed to investigate the load-bearing mechanism of a mined railway tunnel lining under water pressure. To investigate the load-bearing characteristics of different types of linings, a fully closed water pressure exerting ...
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