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Search Results: 1 - 10 of 36943 matches for " Jizheng Yan "
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Humanoid Robot Head Design Based on Uncanny Valley and FACS
Jizheng Yan,Zhiliang Wang,Yan Yan
Journal of Robotics , 2014, DOI: 10.1155/2014/208924
Abstract: Emotional robots are always the focus of artificial intelligence (AI), and intelligent control of robot facial expression is a hot research topic. This paper focuses on the design of humanoid robot head, which is divided into three steps to achieve. The first step is to solve the uncanny valley about humanoid robot, to find and avoid the relationship between human being and robot; the second step is to solve the association between human face and robot head; compared with human being and robots, we analyze the similarities and differences and explore the same basis and mechanisms between robot and human analyzing the Facial Action Coding System (FACS), which guides us to achieve humanoid expressions. On the basis of the previous two steps, the third step is to construct a robot head; through a series of experiments we test the robot head, which could show some humanoid expressions; through human-robot interaction, we find people are surprised by the robot head expression and feel happy. 1. Introduction Robots play an increasingly important role in our life and work, to assist and even replace the human work in more and more fields. With the development of society, the traditional robots can’t meet human beings, humanoid robots [1–3] are coming, and human beings want more and more analogue. There are many famous humanoid robots, for instance, Kismet and Leonardo made from MIT in USA, ROMAN made in Germany, and WE-robot and SAYA made in Japan, which all could surprise people and give some kind of special feelings but cannot gain some place in person’s awareness. This paper divided these humanoid robots into two domains. First like a beautiful flower vase to people, human beings find it is an amazing thing, and only like to see its actions, for instance, smile, anger; these robots are almost made in Japan and have shocking appearance; second like a toy to people, we find it interesting to play with this kind of robots, which can show some facial expressions, and these robots are always made in USA and Europe. In order to avoid these cases and simplify the whole design, this paper is meant to make a humanoid robot head instead of the whole body, which not only has good appearance, but also can show some expressions. The paper is organized as follows: in Section 1 we introduce two kinds of humanoid robots. In Section 2 we introduce the concept of the uncanny valley. In Section 3 we talk about the Facial Action Coding System (FACS). In Section 4 we design the hardware and software of the robot head and build the robot head according to the previous design.
Littlewood-Paley g-Functions and Multipliers for the Laguerre Hypergroup
Jizheng Huang
Journal of Inequalities and Applications , 2011, DOI: 10.1155/2011/741095
Littlewood-Paley -Functions and Multipliers for the Laguerre Hypergroup
Huang Jizheng
Journal of Inequalities and Applications , 2011,
Abstract: Let where . Then can generate a hypergroup which is called Laguerre hypergroup, and we denote this hypergroup by K. In this paper, we will consider the Littlewood-Paley -functions on K and then we use it to prove the H lmander multipliers on K.
Synthesis mechanism of LiNiVO4 by wet chemical method and mixed valence of nickel and vanadium
Qiongyu Lai,Jizheng Lu,Xiaoyang Ji,Fangyong Yan,Yongqiang Wei,Ding Yu
Chinese Science Bulletin , 2002, DOI: 10.1007/BF03036885
Abstract: The single phase LiNiVO4 has been successfully synthesized by adopting a new mild liquid route with oxalic acid as both complexant and precipitant, and this method is named the CPG method. The products were obtained by sintering the dry gel precursor which was prepared by the CPG method at 200–850 °C for 2–10 h in air. The products were tested by XRD, XPS, ESR and TGA-DTA, and the results indicate that the single phase LiNiVO4 could be obtained at 450°C for 2–3 h in air and LiNiVO4 was still steady at 850 °C for 10 h. The valence analyses show that in LiNiVO4 the valence of lithium is +1, both nickel and vanadium have the mixed valence, namely +2, +3 for nickel and +4, +5 for vanadium respectively. The LiNiVO4 can be expressed as LiNi3+ x Ni2+ 1-x V4+ x V5+ 1-x O4 (0 x<1). The pyrolysis mechanism of the dry gel is also discussed.
Effects of Different Regeneration Scenarios and Fertilizer Treatments on Soil Microbial Ecology in Reclaimed Opencast Mining Areas on the Loess Plateau, China
Junjian Li, Yuanming Zheng, Junxia Yan, Hongjian Li, Xiang Wang, Jizheng He, Guangwei Ding
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0063275
Abstract: The soil microbial community in reclaimed mining areas is fundamental to vegetative establishment. However, how this community responds to different regeneration scenarios and fertilizer treatments is poorly understood. This research evaluated plant and soil microbial communities from different regeneration scenarios and different fertilizer treatments. Regeneration scenarios significantly influenced soil bacterial, archaeal, and fungal rDNA abundance. The ratios of fungi to bacteria or archaea were increased with fertilizer application. The diversity of both plants and microbes was lowest in Lotus corniculatus grasslands. Regeneration scenario, fertilizer treatment, and their interaction influenced soil microbial richness, diversity and evenness indices. Labile carbon pool 2 was a significant factor affected plant and microbe communities in July, suggesting that plants and microbes may be competing for nutrients. The higher ratios of positive to negative association were found in soil bacteria and total microbe than in archaea and fungi. Stronger clustering of microbial communities from the same regeneration scenario indicated that the vegetative composition of regeneration site may have a greater influence on soil microbial communities than fertilizer treatment.
Autosomal Recessive Transmission of MYBPC3 Mutation Results in Malignant Phenotype of Hypertrophic Cardiomyopathy
Yilu Wang, Zhimin Wang, Qi Yang, Yubao Zou, Hongju Zhang, Chaowu Yan, Xinxing Feng, Yi Chen, Yin Zhang, Jizheng Wang, Xianliang Zhou, Ferhaan Ahmad, Rutai Hui, Lei Song
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0067087
Abstract: Background Hypertrophic cardiomyopathy (HCM) due to mutations in genes encoding sarcomere proteins is most commonly inherited as an autosomal dominant trait. Since nearly 50% of HCM cases occur in the absence of a family history, a recessive inheritance pattern may be involved. Methods A pedigree was identified with suspected autosomal recessive transmission of HCM. Twenty-six HCM-related genes were comprehensively screened for mutations in the proband with targeted second generation sequencing, and the identified mutation was confirmed with bi-directional Sanger sequencing in all family members and 376 healthy controls. Results A novel missense mutation (c.1469G>T, p.Gly490Val) in exon 17 of MYBPC3 was identified. Two siblings with HCM were homozygous for this mutation, whereas other family members were either heterozygous or wild type. Clinical evaluation showed that both homozygotes manifested a typical HCM presentation, but none of others, including 5 adult heterozygous mutation carriers up to 71 years of age, had any clinical evidence of HCM. Conclusions Our data identified a MYBPC3 mutation in HCM, which appeared autosomal recessively inherited in this family. The absence of a family history of clinical HCM may be due to not only a de novo mutation, but also recessive mutations that failed to produce a clinical phenotype in heterozygous family members. Therefore, consideration of recessive mutations leading to HCM is essential for risk stratification and genetic counseling.

Di Jizheng,

系统科学与数学 , 1998,
Abstract: A method to construct a kind of combinatorial linear approximation operators is given, and some linear operators which have special approximation properties are obtained.
Design for VPN Based on PPTP in Linux Environment and It’s Application in Library

Huang Jizheng,

现代图书情报技术 , 2005,
Abstract: This paper discuss the application of VPN in library, concern in detail the way to implement VPN server based on PPTP in Linux environment with library as a case in point, solve the problem that the outside readers can' t use the electrical resource of the university library.
Design and Implement of Radius Server Using in VPN Authentication in Linux Environment

Huang Jizheng,

现代图书情报技术 , 2005,
Abstract: The paper introduces the principles of Radius protocol, and describes the method that identifies the VPN user using Radius server which constructed from FreeRadius software in details.
New Real-Variable Characterizations of Musielak-Orlicz Hardy Spaces
Yiyu Liang,Jizheng Huang,Dachun Yang
Mathematics , 2012,
Abstract: Let $\varphi: {\mathbb R^n}\times [0,\infty)\to[0,\infty)$ be such that $\varphi(x,\cdot)$ is an Orlicz function and $\varphi(\cdot,t)$ is a Muckenhoupt $A_\infty({\mathbb R^n})$ weight. The Musielak-Orlicz Hardy space $H^{\varphi}(\mathbb R^n)$ is defined to be the space of all $f\in{\mathcal S}'({\mathbb R^n})$ such that the grand maximal function $f^*$ belongs to the Musielak-Orlicz space $L^\varphi(\mathbb R^n)$. Luong Dang Ky established its atomic characterization. In this paper, the authors establish some new real-variable characterizations of $H^{\varphi}(\mathbb R^n)$ in terms of the vertical or the non-tangential maximal functions, or the Littlewood-Paley $g$-function or $g_\lambda^\ast$-function, via first establishing a Musielak-Orlicz Fefferman-Stein vector-valued inequality. Moreover, the range of $\lambda$ in the $g_\lambda^\ast$-function characterization of $H^\varphi(\mathbb R^n)$ coincides with the known best results, when $H^\varphi(\mathbb R^n)$ is the classical Hardy space $H^p(\mathbb R^n)$, with $p\in (0,1]$, or its weighted variant.
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