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Estimating Mobile-Friendliness Scores of Web Pages
SONG, Jihwan,XIE, Xing,LEE, Yoon-Joon,WEN, Ji-Rong The Institute of Electronics, Information and Comm 2010 IEICE transactions on information and systems Vol.93 No.11
<P>Mobile devices such as cell phones and personal digital assistants (PDAs) are becoming increasingly popular tools to access the Internet. Unfortunately, the experience of users attempting to access web pages with these mobile devices has been less than satisfactory because of their small display areas, slow communications links and low computing power. In this paper, we propose a trained scorer to estimate the mobile-friendliness scores of web pages, providing an indication of their suitability for mobile devices. These scores help mobile-friendly pages receive higher ranks in search results when mobile users seek information on the web. Our experiments show that the search results re-ranked by our mobile-friendliness scores increase mobile user satisfaction.</P>
An exploratory study of stress wave communication in concrete structures
Ji, Qing,Ho, Michael,Zheng, Rong,Ding, Zhi,Song, Gangbing Techno-Press 2015 Smart Structures and Systems, An International Jou Vol.15 No.1
Large concrete structures are prone to cracks and damages over time from human usage, weathers, and other environmental attacks such as flood, earthquakes, and hurricanes. The health of the concrete structures should be monitored regularly to ensure safety. A reliable method of real time communications can facilitate more frequent structural health monitoring (SHM) updates from hard to reach positions, enabling crack detections of embedded concrete structures as they occur to avoid catastrophic failures. By implementing an unconventional mode of communication that utilizes guided stress waves traveling along the concrete structure itself, we may be able to free structural health monitoring from costly (re-)installation of communication wires. In stress-wave communications, piezoelectric transducers can act as actuators and sensors to send and receive modulated signals carrying concrete status information. The new generation of lead zirconate titanate (PZT) based smart aggregates cause multipath propagation in the homogeneous concrete channel, which presents both an opportunity and a challenge for multiple sensors communication. We propose a time reversal based pulse position modulation (TR-PPM) communication for stress wave communication within the concrete structure to combat multipath channel dispersion. Experimental results demonstrate successful transmission and recovery of TR-PPM using stress waves. Compared with PPM, we can achieve higher data rate and longer link distance via TR-PPM. Furthermore, TR-PPM remains effective under low signal-to-noise (SNR) ratio. This work also lays the foundation for implementing multiple-input multiple-output (MIMO) stress wave communication networks in concrete channels.
Ryu, Ji-Kan,Tumurbaatar, Munkhbayar,Jin, Hai-Rong,Kim, Woo Jean,Kwon, Mi-Hye,Piao, Shuguang,Choi, Min Ji,Yin, Guo Nan,Song, Kang-Moon,Kang, Yong-Jin,Koh, Young Jun,Koh, Gou Young,Suh, Jun-Kyu Blackwell Pub 2012 JOURNAL OF SEXUAL MEDICINE Vol.9 No.12
<P>Men with diabetic erectile dysfunction (ED) often have severe endothelial dysfunction and respond poorly to oral phosphodiesterase-5 inhibitors.</P>
Suppressive Effect of Sinomenine Combined with 5-Fluorouracil on Colon Carcinoma Cell Growth
Zhang, Ji-Xiang,Yang, Zi-Rong,Wu, Dan-Dan,Song, Jia,Guo, Xu-Feng,Wang, Jing,Dong, Wei-Guo Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.16
It is reported that sinomenine (SIN) and 5-fluorouracil (5-FU) both are effective for colon cancer, but their cooperative suppressive effects and toxicity remain to be clarified in detail. This study aimed to determine suppressive effects and toxicity of sinomenine (SIN) plus 5-fluorouracil (5-FU) on LoVo colon carcinoma cells in vitro and in vivo. CCK-8, Hoechst 33258 staining and an annexin V-FITC/PI apoptosis kit were used to detect suppressive effects. Western blotting was applied to investigate the essential mechanism underlying SIN and 5-FU-induced apoptosis. SIN or 5-FU or both were injected into nude mice, and then suppressive effects and side effects were observed. SIN plus 5-FU apparently inhibited the proliferation of LoVo cells and induced apoptosis. Moreover the united effects were stronger than individually (p<0.05). The results of annexin V-FITC/PI staining and Hoechst 33258 staining showed that the percentage of apoptotic cells induced by SIN and 5-FU combined or alone was significantly higher than the control group (p<0.05). Expression of Bax and Bcl-2 was up-regulated and down-regulated respectively. SIN or 5-FU significantly inhibited effects on the volume of tumour xenografts and their combined suppressive effects were stronger (p<0.05). No obvious side effects were observed. It was apparent that the united effects of SIN and 5-FU on the growth of colorectal carcinoma LoVo cells in vitro and in vivo were superior to those using them individually, and it did not markedly increase the side effects of chemotherapy.
An exploratory study of stress wave communication in concrete structures
Gangbing Song,Qing Ji,Michael Ho,Rong Zheng,Zhi Ding 국제구조공학회 2015 Smart Structures and Systems, An International Jou Vol.15 No.1
Large concrete structures are prone to cracks and damages over time from human usage, weathers, and other environmental attacks such as flood, earthquakes, and hurricanes. The health of the concrete structures should be monitored regularly to ensure safety. A reliable method of real time communications can facilitate more frequent structural health monitoring (SHM) updates from hard to reach positions, enabling crack detections of embedded concrete structures as they occur to avoid catastrophic failures. By implementing an unconventional mode of communication that utilizes guided stress waves traveling along the concrete structure itself, we may be able to free structural health monitoring from costly (re-)installation of communication wires. In stress-wave communications, piezoelectric transducers can act as actuators and sensors to send and receive modulated signals carrying concrete status information. The new generation of lead zirconate titanate (PZT) based smart aggregates cause multipath propagation in the homogeneous concrete channel, which presents both an opportunity and a challenge for multiple sensors communication. We propose a time reversal based pulse position modulation (TR-PPM) communication for stress wave communication within the concrete structure to combat multipath channel dispersion. Experimental results demonstrate successful transmission and recovery of TR-PPM using stress waves. Compared with PPM, we can achieve higher data rate and longer link distance via TR-PPM. Furthermore, TR-PPM remains effective under low signal-to-noise (SNR) ratio. This work also lays the foundation for implementing multiple-input multiple-output (MIMO) stress wave communication networks in concrete channels