Multimodal Prediction-Based Robot Abnormal Movement Identification Under Variable Time-length Experiences

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
Hongmin Wu ◽  
Wu Yan ◽  
Zhihao Xu ◽  
Shuai Li ◽  
Taobo Cheng ◽  
...  
Keyword(s):  
Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1201
Author(s):  
Daniel dos Santos Mota ◽  
Elisabetta Tedeschi

The Conservative Power Theory (CPT) emerged in recent decades as a theoretical framework for coping with harmonically distorted and unbalanced electric networks of ac power systems with a high participation of converter interfaced loads and generation. The CPT measurements are intrinsically linked to moving averages (MA) over one period of the grid. If the CPT is to be used in a low-inertia isolated-grid scenario, which is subjected to frequency variations, adaptive moving averages (AMA) are necessary. This paper reviews an efficient way of computing MAs and turns it into an adaptive one. It shows that an easily available variable time delay block, from MATLAB, causes steady-state errors in the measurements when the grid frequency varies. A new variable time delay block is, thus, proposed. Nonetheless, natural pulsations in the instantaneous power slip through MAs when the discrete moving average window does not fit perfectly the continuously varying period of the grid. A method consisting of weighing two MAs is reviewed and a new and effective hybrid AMA is proposed. The CPT transducers with the different choices of AMAs are compared via computer simulations of a single-phase voltage source feeding either a linear or a nonlinear load.


2020 ◽  
Vol 53 (2) ◽  
pp. 3098-3103
Author(s):  
Martin Steinberger ◽  
Markus Tranninger ◽  
Martin Horn ◽  
Karl Henrik Johansson

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Chenwen Zhong ◽  
Mengping Zhou ◽  
Zhuojun Luo ◽  
Cuiying Liang ◽  
Lina Li ◽  
...  

Abstract Background Patient-centred care is a core attribute of primary care. Not much is known about the relationship between patient-centred care and doctor-patient familiarity. This study aimed to explore the association between general practitioner (GP) perceived doctor-patient familiarity and the provision of patient-centred care during GP consultations. Methods This is a direct observational study conducted in eight community health centres in China. Level of familiarity was rated by GPs using a dichotomized variable (Yes/No). The provision of patient-centred care during GP consultations was measured by coding audiotapes using a modified Davis Observation Code (DOC) interactional instrument. Eight individual codes in the modified DOC were selected for measuring the provision of patient-centred care, including ‘family information’, ‘treatment effects’, ‘nutrition guidance’, ‘exercise guidance’, ‘health knowledge’, ‘patient question’, ‘chatting’, and ‘counseling’. Multivariate analyses of covariance were adopted to evaluate the association between GP perceived doctor-patient familiarity and patient-centred care. Results A total of 445 audiotaped consultations were collected, with 243 in the familiar group and 202 in the unfamiliar group. No significant difference was detected in overall patient-centred care between the two groups. For components of patient-centred care, the number of intervals (1.36 vs 0.88, p = 0.026) and time length (7.26 vs. 4.40 s, p = 0.030) that GPs spent in ‘health knowledge’, as well as time length (13.0 vs. 8.34 s, p = 0.019) spent in ‘patient question’ were significantly higher in unfamiliar group. The percentage of ‘chatting’ (11.9% vs. 7.34%, p = 0.012) was significantly higher in the familiar group. Conclusions This study suggested that GP perceived doctor-patient familiarity may not be associated with GPs’ provision of patient-centred care during consultations in the context of China. Not unexpectedly, patients would show more health knowledge and ask more questions when GPs were not familiar with them. Further research is needed to confirm and expand on these findings.


2014 ◽  
Vol 543-547 ◽  
pp. 4198-4201
Author(s):  
Xiao Guang Li ◽  
Zhan Jun Gao

Mobile agent is one of the most prominent technologies believed to be playing an important role in future e-commerce. After presented an intelligent e-commerce model based on OBI ( open buying on the internet) , we developed a modified approach for the security of mobile agents and e-commerce, and designed an intelligent shopping algorithm based on variable time negotiation function. The presented model has been evaluated by simulation experiment. It has been found that the presented model is efficient.


2006 ◽  
Vol 47 (1-3) ◽  
pp. 49-63 ◽  
Author(s):  
X.-H. Long ◽  
B. Balachandran ◽  
B. P. Mann
Keyword(s):  

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