Feeling In Control : Design Tangible Self-Health Management Service Touch-Points For The Elderly With Holistic Experience

Zhiyong Fu,Dandan Yu,Shuangshuang Zhang 한국HCI학회 2013 한국HCI학회 학술대회 Vol.2013 No.1

This paper presents how to improve the holistic user experience for the elderly with chronic disease by designing the new self-health management service based on multi-screen platform and tangible touch points. As the connected touch point, Med-Cube is designed to help the elderly feel in control when they handle with the complicated multi-screen devices, like TV, tablet PC and mobile phone. In order to create seamless connection between the elderly and the multi-screen service system, we designed the context aware interaction flow based on the elderly’s common experience and behavior of everyday self-health management, such as recording, reminding and navigating. This selfhealth service system helps the elderly to create integrated user experience between virtual online world and physical world as well. The self-health service system also links the elderly with family, friends and doctors by cross-media platform and social network. Our vision in this study is to give the elderly independent, healthy, self-controlled life by providing service from the tangible touch points and holistic cross-media interaction mode.

Novel Schemes to Optimize Sampling Rate for Compressed Sensing

YiFan Zhang,Xuan Fu,Qixun Zhang,Zhiyong Feng,Xiaomin Liu 한국통신학회 2015 Journal of communications and networks Vol.17 No.5

The fast and accurate spectrum sensing over an ultra- wide bandwidth is a big challenge for the radio environment cogni- tion. Considering sparse signal feature, two novel compressed sens- ing schemes are proposed, which can reduce compressed sampling rate in contrast to the traditional scheme. One algorithm is dynam- ically adjusting compression ratio based on modulation recogni- tion and identification of symbol rate, which can reduce compres- sion ratio. Furthermore, without priori information of the modu- lation and symbol rate, another improved algorithm is proposed with the application potential in practice, which does not need to reconstruct the signals. The improved algorithm is divided into two stages, which are the approaching stage and the monitoring stage. The overall sampling rate can be dramatically reduced with- out the performance deterioration of the spectrum detection com- pared to the conventional static compressed sampling rate algo- rithm. Numerous results show that the proposed compressed sens- ing technique can reduce sampling rate by 35%, with an acceptable detection probability over 0.9.

Application of Self-organizing Mapping-Random Forest Model to Map Landslide Susceptibility in Zigui Basin, Three Gorges Reservoir Region, China

( Changdong Li ),( Jingjing Long ),( Zhiyong Fu ),( Wenqiang Chen ) 대한지질공학회 2019 대한지질공학회 학술발표회논문집 Vol.2019 No.2

The Zigui basin is one of the most landslide-prone areas where thousands of landslides are distributed. Researches show that areas sharing the same conditions as identified landslides are clearly potential areas for future disasters. Performing the landslide susceptibility mapping is a heated issue in the area. Continued improvements in high-resolution satellite images, and the developments of unmanned aerial vehicles (UAVs) and site-investigation function well in constructing effective, high-quality landslide databases. GIS technology and machine learning algorithms have been widely applied in landslide susceptibility prediction. Whereas, whether the random and subjective selection of the landslides or non-landslides grid cells are reasonable in research of landslide susceptibility mapping is the existence problem. Based on the Two step cluster (TSC) algorithm and the Self-organizing mapping - Random forest (SOM-RF) model, a novel hybrid model is proposed to overcome the above drawbacks. SOM is used to produce a preliminary landslide susceptibility mapping. TSC algorithm is applied in telling apart the most reasonable True-Positive (TP) from recorded landslide grid cells in high-susceptibility zones and the False-Positive (FP) in low-susceptibility zones. Afterwards, the labeled datasets are imported into the RF model for training. And then the trained SOM-RF model is utilized to perform an improved landslide susceptibility mapping. Most areas with high or very high susceptibility are located within the hydro-fluctuation belt of the TGR. Compared with the susceptibility mapping produced by single RF model, the results of SOM-RF model demonstrate to have the superior prediction skill and higher reliability.

Stable Cu-Co/C carbon-based composites for efficiency catalytic degradation of Orange II by PMS: Effect factors, application potential analysis, and mechanism

Xiaodan Huang,Caihua Liu,Zhiyong Zhang,V. Vasanthakumar,Huiying Ai,Lei Xu,Ming-Lai Fu,Baoling Yuan 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.126 No.-

Carbon-based metallic catalysts (CMCs) have emerged as efficient materials for removing water contaminants,but preparing CMCs with high efficiency and stability remains a great challenge. In this study, weprepared a bimetallic composite of Cu-Co/C catalyst via a gelation and calcination method to degradeOrange II by activating peroxymonosulfate (PMS). The characterization results demonstrated that thespecific surface area and pore size of Cu-Co/C catalysts were 1.675 m2/g and 6.313 nm, respectively,which can provide larger catalytic active sites for boosting PMS activation. Moreover, the effects of differentfactors on Orange II degradation efficiency, cyclic experiments, and possible application in realwater bodies were investigated. The Cu-Co/C catalyst can effectively activate PMS, and 50 mg/L ofOrange II was almost completely removed within 15 min. Additionally, the Cu-Co/C catalyst exhibitedhigh degradation efficiency for other organic dye pollutants. The radical quenching experiments indicatedthat the main active species for Cu-Co/C catalyzed degradation of Orange II were SO4and singlet oxygen(1O2). The catalyst demonstrated good stability and performance in real water bodies. We believe thatthis study will promote the application of carbon-based bimetallic catalysts in the environmental remediationprocess that utilize SO4based advanced oxidation.

GM-CSF augmented the photothermal immunotherapeutic outcome of self-driving gold nanoparticles against colorectal cancer

Jie Dai,Jianmei Li,Yuqin Zhang,Qian Wen,Yun Lu,Yu Fan,Fancai Zeng,Zhiyong Qian,Yan Zhang,Shaozhi Fu 한국생체재료학회 2023 생체재료학회지 Vol.27 No.00

Background Hypoxia is a frequent characteristic observed in solid tumors and is strongly associated with tumor metastasis, angiogenesis, and drug resistance. While the vasculature of hypoxic tumor tissues poses obstacles to the efficient administration of conventional drugs, it may prove advantageous in sustaining hyperthermia. Photothermal therapy (PTT) offers a promising treatment strategy that utilizes the activation of photosensitizers to produce heat, thus facilitating the selective ablation of tumor tissues. Method To enhance the accumulation of photothermal agents in tumor tissue and improve the effectiveness of PTT, we developed a self-propelled hybrid called Bif@PAu-NPs. This hybrid consists of polydopamine (PDA)-coated gold nanoparticles (Au-NPs) loaded onto the anaerobic Bifidobacterium infantis (Bif ). Results The Bif@PAu-NPs actively aggregated at the tumor site because the ability of Bif can target hypoxic regions, and PAu-NPs achieved precise PTT due to their high photothermal conversion efficiency (η = 67.8%). The tumor tissues were ablated by PTT, resulting in the release of antigens through immunogenic cell death (ICD), which stimulates an immune response. The inclusion of GM-CSF enhanced the immune response by recruiting dendritic cells and initiating long-term anti-tumor immunity. Conclusion The Bif@PAu-NPs hybrid effectively suppressed the growth of both primary tumors and re-challenged tumors. The utilization Bif@PAu-NPs in conjunction with GM-SCF exhibits great potential as a photothermal-immunotherapeutic strategy for precisely treating solid tumors.