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| 1 | Climate change induced eutrophication of cold-water lake in an ecologically fragile nature reserve显示文摘Aquatic ecosystem sustainability around the globe is facing crucial challenges because of increasing anthropogenic and natural disturbances. In this study, the Tianchi Lake, a typical cold-water lake and a UNESCO/MAB(Man and Biosphere) nature reserve located in high latitude and elevation with the relatively low intensity of human activity was chosen as a system to examine the linkages between climate change and eutrophication. As a part of the UNESCO Bogda Man and Biosphere Reserve, Tianchi Lake has been well preserved for prevention from human intervention, but why has it been infected with eutrophication recent years? Our results show that climate change played a significant role in the eutrophication in the Tianchi Lake. Increased temperature, changed precipitation pattern and wind-induced hydrodynamic fluctuations in the summer season were suggested to make a major contribution to the accelerated eutrophication. The results also showed that the local temperature and precipitation changes were closely linked to the large-scale atmospheric circulation, which opens the door for the method to be applied in other regions without local climatic information. This study suggests that there is an urgent need to take into consideration of climate change adaptation into the conservation and management of cold-water lakes globally. | Xiaotian Lu Yonglong Lu Deliang Chen Chao Su Shuai Song Tieyu Wang Hanqin Tian Ruoyu Liang Meng Zhang Kifayatullah Khan | 2019 | Journal of Environmental Sciences2019，31，1： | 4 |
| 2 | Oscillating Cellulase Adsorption and Enhanced Lignocellulose Hydrolysis upon Ultrasound Treatment显示文摘We investigated the effects of ultrasound treatment on cellulase adsorption and lignocellulose hydrolysis.The activity of cellulase remained constant upon lowpower ultrasound treatment(<120 W) and decreased using high-power ultrasound(>280 W).Oscillating cellulase adsorption occurred upon ultrasound treatment with any intensity.The maxima for desorption and adsorption were41.9 and 83.1%,respectively,during 1 h of 90 W ultrasound treatment at 50 °C.A comparison between the shorttime with long-time ultrasound experiments indicated that ultrasound treatment tended to desorb cellulase from substrate.However,ultrasound treatment also led to further surface erosion of biomass,which increased cellulase accessibility.These joint actions of ultrasound treatment induced the oscillating adsorption of cellulase.The increase in cellulase accessibility caused by ultrasound treatment led to a significant enhancement in lignocellulose hydrolysis. | Rongxin Su Renjun Yang Yang Jifeng Ruoyu Du Renliang Huang Wei Qi Zhimin He | 2017 | Transactions of Tianjin University2017，23，1： | 3 |
| 3 | Prevalent fecal contamination in drinking water resources and potential health risks in Swat, Pakistan显示文摘Fecal bacteria contaminate water resources and result in associated waterborne diseases.This study assessed drinking water quality and evaluated their potential health risks in Swat, Pakistan. Ground and surface drinking water were randomly collected from upstream to downstream in the River Swat watershed and analyzed for fecal contamination using fecal indicator bacteria(Escherichia coli) and physiochemical parameters(potential of hydrogen, turbidity, temperature, electrical conductivity, total dissolved solid, color, odor and taste). The physiochemical parameters were within their safe limits except in a few locations, whereas, the fecal contaminations in drinking water resources exceeded the drinking water quality standards of Pakistan Environmental Protection Agency(Pak-EPA),2008 and World Health Organization(WHO), 2011. Multivariate and univariate analyses revealed that downstream urbanization trend, minimum distance between water sources and pit latrines/sewerage systems, raw sewage deep well injection and amplified urban,pastures and agricultural runoffs having human and animal excreta were the possible sources of contamination. The questionnaire survey revealed that majority of the local people using 10–20 years old drinking water supply schemes at the rate of 73% well supply,13% hand pump supply, 11% spring supply and 3% river/streams supply, which spreads high prevalence of water borne diseases including hepatitis, intestinal infections and diarrhea, dysentery, cholera, typhoid fever, jaundice and skin diseases in children followed by older and younger adults. | Kifayatullah Khan Yonglong Lu Mian Abdal Saeed Hazrat Bilal Hassan Sher Hizbullah Khan Jafar Ali Pei Wang Herman Uwizeyimana Yvette Baninla Qifeng Li Zhaoyang Liu Javed Nawab Yunqiao Zhou Chao Su Ruoyu Liang | 2018 | Journal of Environmental Sciences2018，30，10： | 1 |
| 4 | Controlled adsorption of cellulase onto pretreated corncob by pH adjustment显示文摘 | Ruoyu Du Rongxin Su Xuan Li Xiaowei Tantai Zhaohui Liu Jifeng Yang Wei Qi Zhimin He | 2012 | Cellulose2012，，2： | 1 |
| 5 | Secrecy Outage Probability Analysis Based on Cognitive Decode-and-Forward Relaying显示文摘Wireless communications have to face to several different security issues in practice due to the nature of broadcast.The information theory is well known to provide efficient approaches to address security issues in wireless communications,which attracts much attention in both industry and academia in recent years.In this paper,inspired by information theory,we study the outage probability of the opportunistic relay selection based on cognitive decode-and-forward relaying with the secrecy consideration.Specifically,the closed-form expression of the outage probability is proposed.Moreover,the asymptotic performance evaluation on the basis of the analytical results is investigated.The simulation results show that the relay selection can reduce the outage probability in accordance with our theoretical analysis. | Ruoyu Su Xiaojun Sun Fei Ding Dengyin Zhang Hongbo Zhu M.I.M.Wahab | 2020 | Computers, Materials & Continua2020，，3： | 0 |
| 6 | Fundamental Limits of Doppler Shift-Based, ToA-Based,and TDoA-Based Underwater Localization显示文摘Dear Editor,This paper is concerned with the underwater localization based on acoustic signals. Specifically, we will focus on the search of an underwater target that can constantly broadcast a beacon signal, such as a black box. Common measurements for localization are Doppler shift [1], time of arrival(ToA) [2]–[4], time difference of arrival(TDoA) [5], [6], angle of arrival(AoA) [7], etc. | Zijun Gong Cheng Li Ruoyu Su | 2023 | IEEE/CAA Journal of Automatica Sinica2023，10，7： | 0 |
| 7 | A comparative study of polymer nanocomposites containing multi-walled carbon nanotubes and graphene nanoplatelets显示文摘Featuring exceptional mechanical and functional performance, MWCNTs and graphene(nano)platelets(GNPs or Gn Ps;each platelet below 10 nm in thickness) have been increasingly used for the development of polymer nanocomposites. Since MWCNTs are now cost-effective at US$30 per kg for industrial applications, this work starts by briefly reviewing the disentanglement and surface modification of MWCNTs as well as the properties of the resulting polymer nanocomposites. GNPs can be made through the thermal treatment of graphite intercalation compounds followed by ultrasonication;GNPs would have lower cost yet higher electrical conductivity over 1,400 S cmthan MWCNTs. Through proper surface modification and compounding techniques, both types of fillers can reinforce or toughen polymers and simultaneously add anti-static performance. A high ratio of MWCNTs to GNPs would increase the synergy for polymers. Green, solvent-free systhesis methods are desired for polymer nanocomposites. Perspectives on the limitations, current challenges and future prospects are provided. | Xiao Su Ruoyu Wang Xiaofeng Li Sherif Araby Hsu-Chiang Kuan Mohannad Naeem Jun Ma | 2022 | Nano Materials Science2022，4，3： | 0 |
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