Combitation of Chinese and Weatern Cultures

Nie Xin 한국콘텐츠학회 2011 ICCC International Digital Design Invitation Exhib Vol.2011 No.5

A Interlaced Filling Algorithm in Deterministic Constructing Compressed Sensing Matrix

Yang Nie,Xin-Le Yu,Zhan-Xin Yang 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.10

The sensing matrix has an important influence on the original signal sampling and reconstruction algorithm in the compressed sensing theory. A complete random sensing matrix has the drawbacks of large storage and high complexity in its implementation. In this paper, we propose an interlaced filling algorithm to construct the sensing matrix, which has a quasi-cyclic structure for efficient hardware implementation. The new sensing matrix has small coherence, which provides assurance for the recovery of sparse signal. Meanwhile, some experimental comparison with the other sensing matrix is accomplished. The simulation results demonstrate that the proposed sensing matrix not only obtains better performance but also owns easy hardware implementation.

Deterministic Construction of Compressed Sensing Matrix Based on Q-Matrix

Yang Nie,Xin-Le Yu,Zhan-Xin Yang 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.10

Compressed sensing is an innovative technology, which provides a new sampling mode. The key problem in compressed sensing is the construction of sensing matrix, which has an important influence on the signal sampling and reconstruction algorithm. At present, in most cases the sensing matrix is a random structure, and is difficult to realize due to its huge storage in practical applications. In this paper, we introduce a novel deterministic construction of sensing matrix via Q-matrix, which is calculated by solving the N-queens problem. The proposed sensing matrix has good orthogonality and circularity. Using the circularity of Q-matrix, we can construct sensing matrix for compressed sensing. A large number of simulation results show that the proposed sensing matrix in this paper can obtain a better quality of the reconstructed image, and it is easily realized owing to its cyclic characteristic.

A theoretical mapping model for bridge deformation and rail geometric irregularity considering interlayer nonlinear stiffness

Lei-xin Nie,Lizhong Jiang,Yulin Feng,Wang-Bao Zhou,Xiang Xiao 국제구조공학회 2023 Steel and Composite Structures, An International J Vol.46 No.1

This paper examines a high-speed railway CRTS-Ⅱ ballastless track-bridge system. Using the stationary potential energy theory, the mapping analytical solution between the bridge deformation and the rail vertical geometric irregularity was derived. A theoretical model (TM) considering the nonlinear stiffness of interlayer components was also proposed. By comparing with finite element model results and the measured field data, the accuracy of the TM was verified. Based on the TM, the effect of bridge deformation amplitude, girder end cantilever length, and interlayer nonlinear stiffness (fastener, cement asphalt mortar layer (CA mortar layer), extruded sheet, etc.) on the rail vertical geometric irregularity were analyzed. Results show that the rail vertical deformation extremum increases with increasing bridge deformation amplitude. The girder end cantilever length has a certain influence on the rail vertical geometric irregularity. The fastener and CA mortar layer have basically the same influence on the rail deformation amplitude. The extruded sheet and shear groove influence the rail geometric irregularity significantly, and the influence is basically the same. The influence of the shear rebar and lateral block on the rail vertical geometric irregularity could be negligible.

Apatinib as a Third-Line Treatment for HER2-Positive Metastatic Gastric Cancer: A Multi-Center Single-Arm Cohort Study

Zhang, Xin,Huo, Haoran,Nie, Yanan,Xue, Jiadong,Yuan, Zengjiang,Zhang, Zhenyi The Korean Gastric Cancer Association 2022 Journal of gastric cancer Vol.22 No.4

Purpose: Treatment options are limited after the failure of first-and second-line treatments in patients with HER2⁺ metastatic gastric cancer (mGC). The present study aimed to explore the efficacy, safety, and prognostic factors of apatinib efficacy as a third-line therapy for patients with human epithelial growth factor receptor 2-positive (HER2⁺) mGC. Materials and Methods: A total of 59 HER2⁺ mGC patients who received apatinib as third-line therapy were retrospectively enrolled in this two-center, single-arm, cohort study; the clinical response, survival data, and adverse events were retrieved. Results: The median progression-free survival (PFS) was 5.2 months (95% confidence interval [CI], 3.9-6.5), and the median overall survival (OS) was 8.2 months (95% CI, 6.6-9.8) Furthermore, forward stepwise multivariate Cox regression analysis showed that a higher Eastern Cooperative Oncology Group performance status score and multiple metastases were independently correlated with decreased PFS and OS (both P<0.05). The main adverse events were leukopenia (45.8%), hypertension (44.1%), thrombocytopenia (39.0%), hand-foot syndrome (37.3%), and elevated transaminase (33.9%). Grade 3 adverse events mainly included hypertension (5.1%) and neutropenia (5.1%); grade 4 adverse events did not occur. Conclusions: Apatinib is efficient and well tolerated in patients with HER2⁺ mGC as a third-line treatment, suggesting that it may be a candidate of choice for these patients.

Simulation of the irradiation effect on hardness of Chinese HTGR A508-3 steels with CPFEM

Junfeng Nie,Pandong Lin,Yunpeng Liu,Haiquan Zhang,Xin Wang 한국원자력학회 2019 Nuclear Engineering and Technology Vol.51 No.8

Understanding the irradiation hardening effect of structural steels under various irradiation conditions plays an important role in developing advanced nuclear systems. Such being the case, a crystal plasticity model for body-centered cubic (BCC) crystal based on the density of dislocations and irradiation defects is summarized and numerically implemented in this paper. Based on this model, nano-indentation hardness of Chinese A508-3 steels with ion irradiation is calculated. Very good agreement is observed between simulation and experimental data of several different irradiation doses subjected to various operating temperatures, from which, it can be concluded that indentation hardness increases with increasing irradiation dose at both room temperature and high temperature. Consequently, the validity of this model has been proved properly, and furthermore, the model established in this paper could guide the study of irradiation hardening effect and temperature effect to some extent.

스마트폰 체험마케팅이 소비가치와 구매의도에 미치는 영향에 관한 연구

니에신위,임창욱,Nie, Xin-Yu,Im, Chang-Uk 한국디지털정책학회 2022 디지털융복합연구 Vol.20 No.4

본 연구는 스마트폰 구매경험이나 제품에 관심이 있는 중국 소비자들을 대상으로 브랜드별 스마트폰 체험마케팅이 소비가치, 구매의도 간에 미치는 영향에 대해 실중분석을 진행하였다. 또한, 체험마케팅을 5가지 체험요소로 분류하였고 분석결과, 스마트 폰의 체험마케팅 체험요소가 소비가치에 유의적인 영향을 미치는 것으로 나타났다. 체험마케팅의 체험요소 중 감각, 감성, 행동, 관계는 구매의도에 적극적인 영향을 미치는 것으로 나타났지만, 인지는 영향을 미치지 못하는 것으로 나타나는 결과를 알 수 있었으며, 스마트폰 시용의 체험을 통한 소비가치와 구매의도 간에 긍정적인 영향력을 갖은 것으로 나타났다. 본 연구결과를 보면 체험마케팅의 각 체험요소를 전면적으로 고려하여 소비자들에게 버라이어티한 체험 형식을 제공할 때 더욱 효과적이라는 점을 발견했다. 본 연구는 스마트폰 브랜드의 이미지를 추구하는 방향과 관련성 있는 소비 체험을 지속적으로 제공하는 것이 스마트폰 기업의 체험마케팅을 지속적으로 실시하고자 하는 기획수립에 기여할 것으로 기대한다. This study conducted an actual analysis on the effects of smart phone experience marketing by brand on consumption value and purchase intention for Chinese consumers who are interested in smart phone purchase experience or products. In addition, experience marketing was classified into five components such as sense, emotion, cognition, behavior, and relationship. The results, In the effect of the components of experiential marketing on purchase intention, sense, act, fell, and relate had an obviously positive impact on purchase intention, however The result is that think does not affect. The results of this study are more effective when considering the five components of smart phone experience marketing. This The study will contribute to the projecting and establishment of long-term experience marketing of smart phone producers by continuously providing experiences related to the direction of pursuing brand image.

Design and analysis of slotted shear walls equipped with energy dissipating shear connectors

Shaodong Shen,Xin Nie,Peng Pan,Haishen Wang 사단법인 한국계산역학회 2017 Computers and Concrete, An International Journal Vol.20 No.5

Shear walls have high stiffness and strength; however, they lack energy dissipation and repairability. In this study, an innovative slotted shear wall featuring vertical slots and steel energy dissipation connectors was developed. The ductility and energy dissipation of the shear wall were improved, while sufficient bearing capacity and structural stiffness were retained. Furthermore, the slotted shear wall does not support vertical forces, and thus it does not have to be arranged continuously along the height of the structure, leading to a much free arrangement of the shear wall. A frame-slotted shear wall structure that combines the conventional frame structure and the innovative shear wall was developed. To investigate the ductility and hysteretic behavior of the slotted shear wall, finite element models of two walls with different steel connectors were built, and pushover and quasi-static analyses were conducted. Numerical analysis results indicated that the deformability and energy dissipation were guaranteed only if the steel connectors yielded before plastic hinges in the wall limbs were formed. Finally, a modified D-value method was proposed to estimate the bearing capacity and stiffness of the slotted shear wall. In this method, the wall limbs are analogous to columns and the connectors are analogous to beams. Results obtained from the modified D-value method were compared with those obtained from the finite element analysis. It was found that the internal force and stiffness estimated with the modified D-value method agreed well with those obtained from the finite element analysis.

Experimental study on steel-concrete composite beams with Uplift-restricted and slip-permitted screw-type (URSP-S) connectors

Linli Duan,Hongbing Chen,Xin Nie,Sanwei Han 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.35 No.2

In steel-concrete composite beams, to improve the cracking resistance of the concrete slab in the hogging moment region, a new type of connector in the interface, named uplift-restricted and slip-permitted screw-type (URSP-S) connector has been proposed. This paper focuses on the behavior of steel-concrete composite beams with URSP-S connectors. A total of three beam specimens including a simply supported beam with URSP-S connectors and two continuous composite beams with different connectors arrangements were designed and tested. More specifically, one continuous composite beam was equipped with URSP-S connectors in negative moment region and traditional shear studs in other regions. For comparison, the other one was designed with only traditional shear studs. The failure modes, crack evolution process, ultimate capacities, strain responses at different locations as well as the interface slip of the three tested specimens were measured and evaluated in-depth. Based on the experimental study, the research findings indicate that the larger slip deformation is allowed while using URSP-S connectors. Meanwhile, the tensile stress reduces and the cracking resistance of the concrete slab improves accordingly. In addition, the overall stiffness and strength of the composite beam become slightly lower than those of the composite beam using traditional shear studs. Moreover, the arrangement suggestion of URSP-S connectors in the composite beam is discussed in this paper for its practical design and application.

Shear resistance of steel–concrete–steel deep beams with bidirectional webs

Yu-Tao Guo,Xin Nie,Jiansheng Fan,Mu-Xuan Tao 국제구조공학회 2022 Steel and Composite Structures, An International J Vol.42 No.3

Steel–concrete–steel composite structures with bidirectional webs (SCSBWs) are used in large-scale projects and exhibit good mechanical performances and constructional efficiency. The shear behaviors of SCSBW deep beam members in key joints or in locations subjected to concentrated forces are of concern in design. To address this issue, experimental program is investigated to examine the deep-beam shear behaviors of SCSBWs, in which the cracking process and force transfer mechanism are revealed. Compared with the previously proposed truss model, it is found that a strut-and-tie model is more suitable for describing the shear mechanism of SCSBW deep beams with a short span and sparse transverse webs. According to the experimental analyses, a new model is proposed to predict the shear capacities of SCSBW deep beams. This model uses strut-and-tie concept and introduces web shear and dowel action to consider the coupled multi mechanisms. A stress decomposition method is used to distinguish the contributions of different shear-transferring paths. Based on case studies, a simplified model is further developed, and the explicit solution is derived for design efficiency. The proposed models are verified using experimental data, which are proven to have good accuracy and efficiency and to be suitable for practical application.