Jinan, China
Jinan, China

Shandong University is a public comprehensive university in Shandong, China. It is one of the largest universities in China by student population and is supported directly by the national government.Present-day Shandong University is the result of multiple mergers as well as splits and restructurings that have involved more than a dozen academic institutions over time. The oldest of Shandong University's precursor institutions, Cheeloo University, was founded by American and English mission agencies in the late 19th century . Tengchow College was the first modern institution of higher learning in China. Shandong University derives its official founding date from the Imperial Shandong University established in Jinan in November 1901 as the second modern national university in the country.Shandong University has seven campuses, all but one of which are located in the provincial capital city of Jinan. A campus to the northeast of the port city of Qingdao is under construction. The university has been classified as a National Key University by the Chinese Ministry of Education since 1960. It has been included in major national initiatives seeking to enhance the international competitiveness of the top-tier universities in China such as Project 985 and Project 211.Shandong University offers master and doctoral degree programs in all major academic disciplines covering the humanities, science and engineering, as well as medicine. Wikipedia.


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Patent
Shandong University | Date: 2016-08-30

A new pattern and method of a virtual reality system based on mobile devices, which may allow a player to design a virtual scene structure in a physical space and allow quick generation of corresponding 3D virtual scenes by a mobile phone; real rotation of the head of the player is captured by an acceleration sensor in the mobile phone by means of a head-mounted virtual reality device to provide the player with immersive experience; and real postures of the player are tracked and identified by a motion sensing device to realize players mobile input control on and natural interaction with the virtual scenes. The system only needs a certain physical space and simple virtual reality device to realize the immersive experience of a user, and provides both a single-player mode and a multi-player mode, wherein the multi-player mode includes a collaborative mode and a versus mode.


CHICAGO--(BUSINESS WIRE)--SIGGRAPH 2017, the world’s leading annual interdisciplinary educational experience showcasing the latest in computer graphics and interactive techniques, announces the acceptance of over 125 technical papers which will be presented during this year’s conference. SIGGRAPH 2017 will mark the 44th International Conference and Exhibition on Computer Graphics and Interactive Techniques, and will be held 30 July–3 August 2017 in Los Angeles. Submissions to the Technical Papers program are received from around the world, and feature high-quality, never-before-seen scholarly work. Those who submit technical papers are held to extremely high standards in order to qualify. SIGGRAPH 2017 accepted 127 juried technical papers (out of 439 submissions) for this year’s showcase, an acceptance rate of 28 percent. Forty papers from ACM Transactions on Graphics (TOG), the foremost peer-review journal in the graphics world, will also be presented. As per SIGGRAPH tradition, the papers were chosen by a highly qualified peer jury comprised of members from academia, alongside a number of field experts. For more information on the Technical Papers program and this year’s selections visit: s2017.SIGGRAPH.org/technical-papers. Or, watch the SIGGRAPH 2017 Technical Papers Preview Trailer on YouTube. “Among the trends we noticed this year was that research in core topics, such as geometry processing or fluid simulation, continues while the field itself broadens and matures,” SIGGRAPH 2017 Technical Papers Program Chair Marie-Paule Cani said. “The 14 accepted papers on fabrication now tackle the creation of animated objects as well as of static structures. Machine learning methods are being applied to perception and extended to many content synthesis applications. And topics such as sound processing and synthesis, along with computational cameras and displays, open novel and exciting new directions.” Of the juried papers, the percentage breakdown based on topic area is as follows: 30% modeling, 25% animation and simulation, 25% imaging, 10% rendering; 4% perception, 3% sound, and 3% computational cameras and displays. Clebsch maps encode vector fields, such as those coming from fluid simulations, in the form of a function that encapsulates information about the field in an easily accessible manner. For example, vortex lines and tubes can be found by iso-contouring. This paper provides an algorithm for finding such maps. Authors: Andre Pradhana Tampubolon, University of California, Los Angeles; Theodore Gast, University of California, Los Angeles; Gergely Klar, DreamWorks Animation; Chuyuan Fu, University of California, Los Angeles; Joseph Teran, Walt Disney Animation Studios, Disney Research, University of California, Los Angeles; Chenfanfu Jiang, University of California, Los Angeles; and, Ken Museth, DreamWorks Animation This multi-species model for simulation of gravity-driven landslides and debris flows with porous sand and water interactions uses the material point method and mixture theory to describe individual phases coupled through a momentum exchange term. Authors: Richard Zhang, University of California, Berkeley; Jun-Yan Zhu, University of California, Berkeley; Phillip Isola, University of California, Berkeley; Xinyang Geng, University of California, Berkeley; Angela S. Lin, University of California, Berkeley; Yu Tianhe, University of California, Berkeley; and, Alexei A. Efros University of California, Berkeley This paper proposes a deep learning approach for user-guided image colorization. The system directly maps a grayscale image, along with sparse, local user "hints" to an output colorization. The CNN propagates user edits by fusing low-level cues with high-level semantic information learned from large-scale data. Authors: Kfir Aberman, Tel Aviv University, Advanced Innovation Center for Future Visual Entertainment; Oren Katzir, Tel Aviv University, Advanced Innovation Center for Future Visual Entertainment; Qiang Zhou, Shandong University; Zegang Luo, Shandong University; Andrei Sharf, Advanced Innovation Center for Future Visual Entertainment, Ben-Gurion University of the Negev; Chen Greif, The University of British Columbia; Baoquan Chen, Shandong University; and, Daniel Cohen-Or, Tel-Aviv University This paper presents a 3D acquisition and reconstruction method based on Archimedes submerged-volume equality. It employs fluid displacement as the shape sensor. The liquid has no line-of-sight. It penetrates cavities and hidden parts, as well as transparent and glossy materials, thus bypassing the visibility and optical limitations of scanning devices. Authors: Desai Chen, Massachusetts Institute of Technology; David Levin, University of Toronto; Wojciech Matusik, Massachusetts Institute of Technology; and, Danny Kaufman, Adobe Research This paper presents a simulation-driven optimization framework that, for the first time, automates the design of highly dynamic mechanisms. The key contributions are a method for identifying fabricated material properties for efficient predictive simulation, a dynamics-aware coarsening technique for finite-element analysis and a material-aware impact response model. Registration is now open for SIGGRAPH 2017. To view badge levels and pricing, visit the conference website. Early registration savings end 9 June 2017. The annual SIGGRAPH conference is a five-day interdisciplinary educational experience in the latest computer graphics and interactive techniques, including a three-day commercial exhibition that attracts hundreds of companies from around the world. The conference also hosts the international SIGGRAPH Computer Animation Festival, showcasing works from the world's most innovative and accomplished digital film and video creators. Juried and curated content includes outstanding achievements in time-based art, scientific visualization, visual effects, real-time graphics, and narrative shorts. SIGGRAPH 2017 will take place from 30 July–3 August 2017 in Los Angeles. Visit the SIGGRAPH 2017 website or follow SIGGRAPH on Facebook, Twitter, YouTube, or Instagram for more detailed information. The ACM Special Interest Group on Computer Graphics and Interactive Techniques is an interdisciplinary community interested in research, technology, and applications in computer graphics and interactive techniques. Members include researchers, developers, and users from the technical, academic, business, and art communities. ACM SIGGRAPH enriches the computer graphics and interactive techniques community year-round through its conferences, global network of professional and student chapters, publications, and educational activities. ACM, the Association for Computing Machinery, is the world's largest educational and scientific computing society, uniting educators, researchers, and professionals to inspire dialogue, share resources, and address the field's challenges. ACM strengthens the computing profession's collective voice through strong leadership, promotion of the highest standards, and recognition of technical excellence. ACM supports the professional growth of its members by providing opportunities for lifelong learning, career development, and professional networking.


Patent
Shandong University | Date: 2014-06-19

An improved design method of a two-stage FRM filter includes the following steps: constructing an improved two-stage FRM filter; calculating passband and stopband edge parameters of a prototype filter, passband and stopband edge parameters of a second-stage masking filter and passband and stopband edge parameters of a first-stage masking filter in Case A and Case B, respectively; calculating the complexity of the FRM filter according to the obtained parameters, and finding out one or more sets [M, P, Q] having the lowest complexity within a search range; and optimizing the improved FRM filter. The improved design method of a two-stage FRM filter has the following beneficial effect: as compared to a conventional design method of a two-stage FRM filter, the complexity of a narrow-band FIR (Finite Impulse Response) filter can be reduced through design using the improved method, and power consumption is thus reduced in hardware implementation.


Chen F.,Shandong University | de Aldana J.R.V.,University of Salamanca
Laser and Photonics Reviews | Year: 2014

Femtosecond-laser micromachining (also known as inscription or writing) has been developed as one of the most efficient techniques for direct three-dimensional microfabrication of transparent optical materials. In integrated photonics, by using direct writing of femtosecond/ultrafast laser pulses, optical waveguides can be produced in a wide variety of optical materials. With diverse parameters, the formed waveguides may possess different configurations. This paper focuses on crystalline dielectric materials, and is a review of the state-of-the-art in the fabrication, characterization and applications of femtosecond-laser micromachined waveguiding structures in optical crystals and ceramics. A brief outlook is presented by focusing on a few potential spotlights. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Wang Y.,CAS Yantai Institute of Coastal Zone Research | Yan B.,Shandong University | Chen L.,CAS Yantai Institute of Coastal Zone Research
Chemical Reviews | Year: 2013

Surface-enhanced Raman scattering (SERS) is an ultrasensitive vibrational spectroscopic technique to detect molecules on or near the surface of plasmonic nanostructures, greatly extending the role of standard Raman spectroscopy. Since its discovery in the 1970s, SERS has been applied to many analyses, especially in biochemistry and life sciences. Surface-enhanced Raman scattering (SERS) is an ultrasensitive vibrational spectroscopic technique to detect molecules on or near the surface of plasmonic nanostructures, greatly extending the role of standard Raman spectroscopy. The first explanation is that the molecule-surface interaction induces novel charge-transfer intermediates that have higher Raman scattering cross sections than do those of the analyte that is unadsorbed and on the surface.


Energetic ion beams with diverse energies, species and beam dimensions have been extensively utilized to modify the properties of materials to achieve versatile applications in many aspects of industry, agriculture and scientific research. In optics, the ion-beam technology has been applied to fabricate various micro- and submicrometric guiding structures on a wide range of optical crystals through the efficient modulation of the refractive indices or structuring of the surface, realizing various applications in many branches of photonics. The ion-beam fabricated optical waveguides and other photonic structures have shown good guiding performance as well as properties related to the materials, suggesting promising potential for many aspects of photonics. This paper gives the state-of-the-art review of fabrication, characterization and application on the ion-beam-processed micro- and submicrometric photonic structures by highlighting the most recent research progress. A brief prospect is presented by focusing on a few potential spotlights. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Li J.,Shandong University
Automatica | Year: 2012

In Buckdahn, Djehiche, Li, and Peng (2009), the authors obtained mean-field Backward Stochastic Differential Equations (BSDEs) in a natural way as a limit of some highly dimensional system of forward and backward SDEs, corresponding to a great number of "particles" (or "agents"). The objective of the present paper is to deepen the investigation of such mean-field BSDEs by studying their stochastic maximum principle. This paper studies the stochastic maximum principle (SMP) for mean-field controls, which is different from the classical ones. This paper deduces an SMP in integral form, and it also gets, under additional assumptions, necessary conditions as well as sufficient conditions for the optimality of a control. As an application, this paper studies a linear quadratic stochastic control problem of mean-field type. © 2011 Elsevier Ltd. All rights reserved.


Tong D.M.,Shandong University
Physical Review Letters | Year: 2010

The quantitative condition has been widely used in the practical applications of the adiabatic theorem. However, it had never been proved to be sufficient or necessary before. It was only recently found that the quantitative condition is insufficient, but whether it is necessary remains unresolved. In this Letter, we prove that the quantitative condition is necessary in guaranteeing the validity of the adiabatic approximation. © 2010 The American Physical Society.


Cui M.,Shandong University
Journal of Computational Physics | Year: 2012

High-order compact finite difference scheme with operator splitting technique for solving two-dimensional time fractional diffusion equation is considered in this paper. A Grünwald-Letnikov approximation is used for the Riemann-Liouville time derivative, and the second order spatial derivatives are approximated by the compact finite differences to obtain a fully discrete implicit scheme. Alternating direction implicit (ADI) method is used to split the original problem into two separate one-dimensional problems. The local truncation error is analyzed and the stability is discussed by the Fourier method. The proposed scheme is suitable when the order of the time fractional derivative γ lies in the interval 12,1. A correction term is added to maintain high accuracy when γ∈0,12. Numerical results are provided to verify the accuracy and efficiency of the proposed algorithm. © 2011 Elsevier Inc.


The present invention relates to a valve train mechanism and a fuel supply system of internal combustion engine, and particularly relates to an oil control device of a hydraulic fully variable valve system of the internal combustion engine. This device connected with the hydraulic valve system of internal combustion engine, the device consists of a housing, a rotary valve, a hydraulic accumulator and a transmission mechanism. The rotary valve, the hydraulic accumulator and the transmission mechanism are installed in the housing. The rotary valve consists of a rotary valve shaft and a rotary valve sleeve. The hydraulic accumulator consists of an accumulator piston, an accumulator spring, an end cover, a sealing seat ring and a rubber gasket and is installed in the cavity at one end of the housing. An accumulator chamber is provided between the rotary valve and the hydraulic accumulator. The transmission mechanism consists of a transmission gear, a gear shaft and a cross slide coupling. The transmission gear is installed on the gear shaft, while the gear shaft is connected with the rotary valve shaft through the cross slide coupling. The present invention can replace a high-frequency solenoid valve, it is applicable to use with hydraulic fully variable valve system of single-cylinder and multi-cylinder internal combustion engines. And the present invention has the advantages of simple structure, reliability, good manufacturability and low cost.

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