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7 results on '"Jiaping Yang"'

1. Are big data talents different from business intelligence expertise?: Evidence from text mining using job recruitment advertisements

Author

Jiaping Yang, Jun Wu, and Honglei Shi

Subjects
Topic model, Teamwork, Knowledge management, business.industry, media_common.quotation_subject, Big data, Exploratory research, 020207 software engineering, 02 engineering and technology, Semantics, Metadata, Data visualization, 020204 information systems, Business intelligence, 0202 electrical engineering, electronic engineering, information engineering, Marketing, business, media_common
Abstract

As more and more companies become aware of the benefits of collecting and analyzing data, hiring employee with data analytics expertise is a key issue faced by HR practitioners. Although previous research empirically highlighted the differences of knowledge and skill requirements between big data (BD) and business intelligence (BI) in English-speaking countries, limited similar study is conducted in China. By analyzing and interpreting the topic modeling results with dataset extracted from online job recruitment website Zhaopin.com, this exploratory study reveals that (1) the demand for BD competencies is far bigger (nearly six times) than the demand for BI competencies in China job market; (2) for Chinese employer, hard skills, especially those advanced analytic and programming skills, are much emphasized when HR searching for qualified BD applicants; (3) given the large volume and unstructured nature of big data, BD investments are currently much more human-capital-intensive than BI projects are. Our findings not only enhance the understanding of similarities and differences in BI and BD areas of competency but also provide guidance for organizations to choose suitable HR decisions.

Published
2017

2. Influence factors and mechanism of removing fluorides with Fe-Type Sepiolite

Author

Zhaoge Xie, Obemah David Nartey, Guozheng Zhang, Jiaping Yang, and Zichun Yan

Subjects
chemistry.chemical_compound, Adsorption, Chemistry, Chemisorption, Magnesium, Sepiolite, Inorganic chemistry, chemistry.chemical_element, Absorption (chemistry), Fluoride, Effluent, Ion
Abstract

A highly efficient new fluoride absorbent was prepared by modification of sepiolite with an iron chloride. The effects of absorbent size, duration, pH, raw concentration, co-existing anions on removal efficiency of fluoride were investigated. The experiments indicated that Fe-Type Sepiolite is an effective fluoride absorbent with the removal efficiency above 95% by dosage of 2 g/100ml and duration of 40 min. The optimum range size of the absorbent is between the range of 0.–1.25 mm, and pH is partially sub acidity or neutral. Co-existing anions such as NO 3 − and SO 4 2− has a little Influence on adsorption of Fluoride. According to the analysis of adsorption isotherm and regeneration of Fe-Type Sepiolite, the mechanism of adsorbed fluoride is mainly by chemical adsorption.

Published
2011

3. Experimental comparison of disk vibrations mounted on ball bearing and fluid bearing spindle

Author

S. H. Winoto, Qide Zhang, Jiaping Yang, and Guoxia Guo

Subjects
Vibration, Materials science, Ball bearing, business.industry, law, Fluid bearing, Structural engineering, business, law.invention
Abstract

Summary form only given. The disk vibration isoneof major faorsthat causetrack misregistration [1]. With thetrend of replacing conventional ball bearing spindle motor with fluid bearing spindle motor in hard disk drives, the vibration characteristics of the disks mounted on fluid bearing spindle motor also becomes an important issue. In this paper, the vibration characteristics of 3.5 inch disk and 2.5 inch disk mounted on ball bearing spindle and fluid bearing spindle were experimentally investigated and compared. The differences between these two types of spindle motors are presented and analyzed.

Published
2003

5. Thermal Effects in Heat Assisted Bit Patterned Media Recording.

Author

Baoxi Xu, Jiaping Yang, Hongxin Yuan, Jun Zhang, Qide Zhang, and Tow Chong Chong

Subjects
*MAGNETIC recording media, *DENSITY, *MAGNETIC fields, *THERMAL expansion, *MAGNETIC pole
Abstract

It is a big challenge to achieve recording density of 10 Tb/in[sup2] for magnetic recording. Two promising technologies have been proposed for achieving density beyond 1 Tb/in[sup2]: heat assisted magnetic recording and bit patterned media. Owing to limitation of minimum media grain size or requirement of higher writing magnetic field, the densities of both technologies are still limited at below 5 Tb/in[sup2]. There is a need for new technology to push the density towards 5 Tb/in[sup2] and beyond. Heat assisted bit patterned media recording is a good candidate to achieve this target. In this paper, thermal effects on bit patterned media at densities from 5 to 10 Tb/in[sup2] are studied by numerical simulations. The results show that the media with soft under layer has bit mark vertical expansion of around 0.15 nm at 5 Tb/in[sup2], which may cause recording performance change in the case of less than 3 nm space between magnetic write pole and recording layer. In order to obtain less than 1 ns cooling speed, a pulse heating method is proposed. With this method, the cooling speed gets tremendous improvement at BAR 1. Media with large BAR has worse thermal performances. [ABSTRACT FROM AUTHOR]

Published
2009
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6. Thrust Force Analysis Based on H Error Evaluation and Adaptive Mesh. for Linear Micromotor.

Author

Jie Chai, Jiaping Yang, Chao Bi, and Yi Lu

Subjects
*MICROELECTROMECHANICAL systems, *ELECTROMAGNETIC fields, *FINITE element method, *ROTORS, *ALGORITHMS, *MAGNETIC fields, *ELECTROMECHANICAL devices
Abstract

To predict the thrust force accurately in the design of linear micromotor, the Coulomb virtual work (CVW) method was applied to calculate the electromagnetic thrust force based on the finite-element solution of the electromagnetic field. Since only the magnetic field intensity H in the air layer surrounding the moving part is used to calculate the thrust force in the CVW method, the local errors of H, in the sheath air layer severely affect the calaculation accuracy. To reduce the considerable local errors of H in finite-element field solution, an estimation method of H error with an adaptive mesh algorithm was proposed. The proposed method can `Adaptively refine the mesh according to the evaluation of H error and thus increase' the accuracy of force calculation effectively while require less computation time. [ABSTRACT FROM AUTHOR]

Published
2004
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