Create New Online Personal Styling Coordination Model

Zhao Cheng,이성필 한국인더스트리얼디자인학회 2012 산업디자인학연구 Vol.6 No.2

The objective of this research is to study on the existing wardrobe service system and the stylist working condition. In this study, preliminary identification in the system and customers’ dissatisfaction were made, next the framework were created to improve the current condition. Initially, analyzation were made through the existing wardrobe stylist service; and also to it’s work flow and service blue print. The service blueprint divided into four parts, it presents the figure of the service, the service provider and consumer behavior, the specialized service type and the required charge. We again subdivide the service work flow into eight portions. Then, key elements on each of the specialty of the work flow extracted into a questionnaire. Eight random customers who experienced the wardrobe stylist’s service are selected from FGI (FocusGroupInterview)interview section. Finally, through the analysis, the customers were not satisfied with the cloth match and try-on. In fact, the customers are not even satisfied with the service process instead of the service, they are also tired of the whole complex service process. For this reason, the research will investigate the problem in the whole service process and propose the new solution that would transfer the off-line service to on-line services. In this way, it will not only improve the efficiency, but also simplify the complex service process and the framework would be beneficial for the whole industry. In the future continuing research, new on-line service mode will be created based on the current framework, will be positively suitable for wardrobe stylist.

Expression pattern of prohibitin, capping actin protein of muscle Z-line beta subunit and tektin-2 gene in Murrah buffalo sperm and its relationship with sperm motility

Zhaocheng Xiong,Haihang Zhang,Ben Huang,Qingyou Liu,Yingqun Wang,Deshun Shi,Xiangping Li 아세아·태평양축산학회 2018 Animal Bioscience Vol.31 No.11

Objective: The aim of the current study is to investigate the relationship between prohibitin (PHB), capping actin protein of muscle Z-line beta subunit (CAPZB), and tektin-2 (TEKT2) and sperm motility in Murrah buffalo. Methods: We collected the high-motility and low-motility semen samples, testis, ovary, muscle, kidney, liver, brain and pituitary from Murrah buffalo, and analysed the expression of PHB, CAPZB, and TEKT2 in mRNA (message RNA) and protein level. Results: Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) result showed that the expression of PHB was higher and CAPZB, TEKT2 were specifically expressed in testis as compared to the other 6 tissues, and that in testis, the expression of TEKT2 was higher than that of CAPZB and PHB. Immunohistochemistry test revealed that all three genes were located on the convoluted seminiferous tubule and enriched in spermatogenic cells. Both qRT-PCR and Western Blot results showed that the expression levels of PHB, CAPZB, and TEKT2 were significantly lower in the low-motility semen group compared to the high-motility semen group (p<0.05). Conclusion: The expression levels of PHB, CAPZB, and TEKT2 in Murrah buffalo sperm have a high positive correlation with sperm motility. And the three genes may be potential molecular markers for the decline of buffalo sperm motility.

CLUSTER VALIDITY ANALYSIS FOR FLOOD CLUSTERING

HOD ZHAOCHENG 한국수자원학회 2005 한국수자원학회 학술대회 Vol.2005 No.1

A new analytical ICCE and force prediction model for wide-row machining of free-form surface

Minglong Guo,Zhaocheng Wei,Jia Wang,Minjie Wang,Xiaoyu Wang,Shengxian Liu 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.1

Cutting force is the most intuitive reflection of various influencing factors in the milling process, which is important for improving machining quality and efficiency. For the widerow milling with flat-end mill of free-form surface, an analytical in-cut cutting edge (ICCE) algorithm is studied in detail, and overall cutting force model is further constructed. The cutter location points along tool path are discretized into small oblique planes. Taking the oblique plane machining as the new object, the relative position of flat-end mill and workpiece in five-axis machining is defined parametrically. By constructing a semi-enclosed space in which the cutting edge participates in cutting, the ICCE is directly obtained. By analyzing the cutting force of oblique plane, the cutting force model of free-form surface can be established by spatial coordinate transformation. The simulation and experiment have demonstrated the correctness and effectiveness of the proposed ICCE algorithm and force prediction model.

Research and Application Based on Combination of online-function and offline-function of Power System Online Dynamic Early Warning System

Qin, Changfeng,Liu, Zhaocheng,Kang, Jiandong,Qiu, Weijiang,Chen, Jilin 대한전기학회 2014 The Journal of International Council on Electrical Vol.4 No.3

The Online Dynamic Security Assessment & Early Warning System of Power System (PDSA) integrate grid data and model, adopt pre-allocation mechanism, make static stability analysis, transient stability analysis, dynamic stability analysis and advanced assessment of total transfer capacity(TTC). Real-time alarm information of power grid is shown which reflect weak points of the grid. However, with the development of grid structure and data model, only displaying current alarm results that is unable to meet dispatchers' demands through pre-allocation fixed parameters mechanism adopted. This paper introduced combination of dynamic warning online systems and offline systems, which achieve online calculation parameters dynamically adjustment, transient stability curve viewing, analysis and comparison of historical alarm results, report generation. The solution has been successfully applied to state grid, regional grids and provincial grids of china, such as state grid, central china power grid, Hubei grid, which ensure the system's flexibility and stability, improve work efficiency, and provide convenient means for operator.

NOVEL ELECTRONIC BRAKING SYSTEM DESIGN FOR EVS BASED ON CONSTRAINED NONLINEAR HIERARCHICAL CONTROL

Ronghui Zhang,Kening Li,Fan Yu,Zhaocheng He,Zhi Yu 한국자동차공학회 2017 International journal of automotive technology Vol.18 No.4

Both environment protection and energy saving have attracted more and more attention in the electric vehicles (EVs) field. In fact, regarding control performance, electric motor has more advantages over conventional internal combustion engine. To decouple the interaction force between vehicle and various coordinating and integrating active control subsystems and estimate the real-time friction force for Advanced Emergency Braking System (AEBS), this paper’s primary intention is uniform distribution of longitudinal tire-road friction force and control strategy for a Novel Anti-lock Braking System (Nov- ABS) which is designed to estimate and track not only any tire-road friction force, but the maximum tire-road friction force, based on the Anti-Lock Braking System (ABS). The longitudinal tire-road friction force is computed through real-time measurement of breaking force and angular acceleration of wheels. The Magic Formula Tire Model can be expressed by the reference model. The evolution of the tire-road friction is described by the constrained active-set SQP algorithm with regard to wheel slip, and as a result, it is feasible to identify the key parameters of the Magic Formula Tire Model. Accordingly, Inverse Quadratic Interpolation method is a proper way to estimate the desired wheel slip in regards to the reference of tireroad friction force from the top layer. Then, this paper adapts the Nonlinear Sliding Mode Control method to construct proposed Nov-ABS. According to the simulation results, the objective control strategy turns out to be feasible and satisfactory.

Structured Compressive Sensing-Based Spatio-Temporal Joint Channel Estimation for FDD Massive MIMO

Zhen Gao,Linglong Dai,Wei Dai,Byonghyo Shim,Zhaocheng Wang IEEE 2016 IEEE TRANSACTIONS ON COMMUNICATIONS Vol.64 No.2

<P>Massive MIMO is a promising technique for future 5G communications due to its high spectrum and energy efficiency. To realize its potential performance gain, accurate channel estimation is essential. However, due to massive number of antennas at the base station (BS), the pilot overhead required by conventional channel estimation schemes will be unaffordable, especially for frequency division duplex (FDD) massive MIMO. To overcome this problem, we propose a structured compressive sensing (SCS)-based spatio-temporal joint channel estimation scheme to reduce the required pilot overhead, whereby the spatio-temporal common sparsity of delay-domain MIMO channels is leveraged. Particularly, we first propose the nonorthogonal pilots at the BS under the framework of CS theory to reduce the required pilot overhead. Then, an adaptive structured subspace pursuit (ASSP) algorithm at the user is proposed to jointly estimate channels associated with multiple OFDM symbols from the limited number of pilots, whereby the spatio-temporal common sparsity of MIMO channels is exploited to improve the channel estimation accuracy. Moreover, by exploiting the temporal channel correlation, we propose a space-time adaptive pilot scheme to further reduce the pilot overhead. Additionally, we discuss the proposed channel estimation scheme in multicell scenario. Simulation results demonstrate that the proposed scheme can accurately estimate channels with the reduced pilot overhead, and it is capable of approaching the optimal oracle least squares estimator.</P>