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| 1 | Chemical composition of PM_(2.5) during winter in Tianjin,China显示文摘PM2.5 samples for 24 h were collected during winter in Tianjin,China. The ambient mass concentration and chemical composition of the PM2.5 were determined. Ionic species were analyzed by ion chromatog-raphy,while carbonaceous species were determined with the IMPROVE thermal optical reectance(TOR) method,and inorganic elements were measured by inductively coupled plasma-atomic emission spec-trometer. The daily PM2.5 mass concentrations ranged from 48.2 to 319.2 g/m3 with an arithmetic average of 144.6 g/m3. The elevated PM2.5 in winter was mostly attributed to combustion sources such as vehicle exhaust,heating,cooking and industrial emissions,low wind speeds and high relative humidity(RH) ,which were favorable for pollutant accumulation and formation of secondary pollutants. By chem-ical mass balance,it was estimated that about 89.1% of the PM2.5 mass concentrations were explained by carbonaceous species,secondary particles,crustal matters,sea salt and trace elements. Organic material was the largest contributor,accounting for about 32.7% of the total PM2.5 mass concentrations. SO42-,NO3-,Cl- and NH4+ were four major ions,accounting for 16.6%,11.5%,4.7% and 6.0%,respectively,of the total mass of PM2.5. | Jinxia Gu Zhipeng Bai Weifang Li Liping Wu Aixia Liu Haiyan Dong Yiyang Xie | 2011 | Particuology2011，9，3： | 60 |
| 2 | Multi target pigs tracking loss correction algorithm based on Faster R-CNN显示文摘In order to solve the problem that target tracking frames are lost during the visual tracking of pigs,this research proposed an algorithm for multi target pigs tracking loss correction based on Faster R-CNN.The video of live pigs was processed by Faster R-CNN to get the object bounding box.Then,the SURF and background difference method were combined to predict whether the target pig will be occluded in the next frame.According to the occlusion condition,the maximum value of the horizontal and vertical coordinate offset of the bounding box in the adjacent two frames of the frame image in continuous N(N is the value of the video frame rate)were calculated.When bounding boxes in a video frame are merged into one bounding box,this maximum value was used to correct the current tracking frame offset in order to achieve the purpose of solving the tracking target loss problem.The experiment results showed that the success rate range of RP Faster-RCNN in the data set was 80%-97% while in term of Faster-RCNN was 40%-85%.And the average center point error of RP Faster-RCNN was 1.46 lower than Faster-RCNN which was about 2.60.The new algorithm was characterized by good robustness and adaptability,which could solve the problem of missing tracking target and accurately track multiple targets when the targets occlude each other. | Longqing Sun Yuanbing Zou Yan Li Zhengda Cai Yue Li Bing Luo Yan Liu Yiyang Li | 2018 | International Journal of Agricultural and Biological Engineering2018，11，5： | 7 |
| 3 | Individual pig object detection algorithm based on Gaussian mixture model显示文摘The background models are crucially important for the object extraction for moving objects detection in a video.The Gaussian mixture model(GMM)is one of popular methods in the background models.Gaussian mixture model which applied to the pig target detection has some shortcomings such as low efficiency of algorithm,misjudgment points and ghosts.This study proposed an improved algorithm based on adaptive Gaussian mixture model,to overcome the deficiencies of the traditional Gaussian mixture model in pig object detection.Based on Gaussian mixture background model,this paper introduced two new parameters of video frames m and T0.The Gaussian distribution was scanned once every m frames,the excessive Gaussian distribution was deleted to improve the convergence speed of the model.Meanwhile,using different learning rates to suppress ghosts,a higher decreasing learning rate was adopted to accelerate the background modeling before T_(0),the background model would become stable as the time continued and a smaller learning rate could be used.In order to maintain a stable background and reduce noise interference,a fixed learning rate after T_(0) was used.Results of experiments indicated that this algorithm could quickly build the initial background model,detect the moving target pigs,and extract the complete contours of the target pigs’.The algorithm is characterized by good robustness and adaptability. | Li Yiyang Sun Longqing Zou Yuanbing Li Yue | 2017 | International Journal of Agricultural and Biological Engineering2017，10，5： | 6 |
| 4 | Aluminum-Enhanced Proton Release Associated with Plasma Membrane H^+-Adenosine Triphosphatase Activity and Excess Cation Uptake in Tea (Camellia sinensis) Plant Roots显示文摘Cultivated tea(Camellia sinensis) plants acidify the rhizosphere, and Aluminum(Al) toxicity is recognized as a major limiting factor for plant growth in acidic soils. However, the mechanisms responsible for rhizosphere acidification associated with Al have not been fully elucidated. The present study examined the effect of Al on root-induced rhizosphere acidification, plasma membrane H^+-adenosine triphosphatase(H^+-ATPase) activity, and cation-anion balance in tea plant roots. The exudation of H^+from tea plant roots with or without Al treatment was visualized using an agar sheet with bromocresol purple. The H^+-ATPase activity of plasma membranes isolated from the roots was measured after hydrolysis using the two-phase partition system. The Al treatment strongly enhanced the exudation of H^+, and the acidification of tea plant roots by Al was closely associated with plasma membrane H^+-ATPase activity. The root plasma membrane H^+-ATPase activity increased with Al concentration. The Al content, amount of protons released, and H^+-ATPase activity were significantly higher in roots treated with Al than in those untreated. The results of the cation-anion balance in roots showed an excess of cations relative to anions, with the amount of excess cation uptake increasing with increasing Al concentrations. These suggest that Al-enhanced proton release is associated with plasma membrane H^+-ATPase activity and excess cation uptake. Findings of this study would provide insights into the contributing factors of soil acidification in tea plantations. | WAN Qing MI Yuhe YANG Yiyang Xu Renkou LI Xinghui | 2018 | Pedosphere2018，28，5： | 5 |
| 5 | A novel biodegradable Mg-1Zn-0.5Sn alloy:Mechanical properties,corrosion behavior,biocompatibility,and antibacterial activity显示文摘To meet the growing demand for antibacterial implants for bone-implant-associated infection therapy and avoid the adverse effects of secondary surgery,a degradable platform with pH responsiveness and ion-associated antibacterial properties was constructed.A small amount of Sn added to Mg-1Zn alloy reduces the biocorrosion rate,which can be attributed to Sn participation in outer-layer film formation,significantly reducing the biocorrosion rate and hydrogen evolution rate after implantation in vivo.These Mg alloys,which are susceptible to degradation in the acidic bacterial microenvironment,degrade by releasing Mg,Zn and Sn,producing favorably alkaline and antibacterial conditions.Samples with the composition of Mg-1Zn-0.5Sn were found to be beneficial for promoting initial cell adhesion and proliferation,resulting in improved biocompatibility and biosafety.The biocompatibility of this alloy was confirmed by the healthy behavior of animals and the absence of acute or chronic toxicity in the liver,spleen,and kidneys.Our results demonstrate that Mg-1Zn-0.5Sn is safe for biological systems,enabling its efficacious use in biomedical applications. | Weikang Zhao Jingfeng Wang Jiang Weiyang Bo Qiao Yiyang Wang Yuling Li Dianming Jiang | 2020 | Journal of Magnesium and Alloys2020，8，2： | 3 |
| 6 | Dynamic edge-based biomarker non-invasively predicts hepatocellular carcinoma with hepatitis B virus infection for individual patients based on blood testing显示文摘Hepatitis B virus (HBV)-induced hepatocellular carcinoma (HCC) is a major cause of cancer-related deaths in Asia and Africa. Developing effective and non-invasive biomarkers of HCC for individual patients remains an urgent task for early diagnosis and convenient monitoring. Analyzing the transcriptomic profiles of peripheral blood mononuclear cells from both healthy donors and patients with chronic HBV infection in different states (i.e. HBV carrier, chronic hepatitis B, cirrhosis, and HCC), we identified a set of 19 candidate genes according to our algorithm of dynamic network biomarkers. These genes can both characterize different stages during HCC progression and identify cirrhosis as the critical transition stage before carcinogenesis. The interaction effects (i.e. coexpressions) of candidate genes were used to build an accurate prediction model: the so-called edge-based biomarker. Considering the convenience and robustness of biomarkers in clinical applications, we performed functional analysis, validated candidate genes in other independent samples of our collected cohort, and finally selected COL5A1, HLA-DQB1, MMP2, and CDK4 to build edge panel as prediction models. We demonstrated that the edge panel had great performance in both diagnosis and prognosis in terms of precision and specificity for HCC, especially for patients with alpha-fetoprotein-negative HCC. Our study not only provides a novel edge-based biomarker for non-invasive and effective diagnosis of HBV-associated HCC to each individual patient but also introduces a new way to integrate the interaction terms of individual molecules for clinical diagnosis and prognosis from the network and dynamics perspectives. | Yiyu Lu Zhaoyuan Fang Meiyi Li Chen Qian Tao Zeng Lina Lu Qilong Chen Hui Zhang Qianmei Zhou Yan Sun Xuefeng Xue Yiyang Hu Luonan Chen Shibing Su | 2019 | Journal of Molecular Cell Biology2019，11，8： | 3 |
| 7 | Safe and Stable Lithium Metal Batteries Enabled by an Amide-Based Electrolyte显示文摘The formation of lithium dendrites and the safety hazards arising from flammable liquid electrolytes have seriously hindered the development of high-energy-density lithium metal batteries.Herein,an emerging amide-based electrolyte is proposed,containing LiTFSI and butyrolactam in different molar ratios.1,1,2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether and fluoroethylene carbonate are introduced into the amide-based electrolyte as counter solvent and additives.The well-designed amide-based electrolyte possesses nonflammability,high ionic conductivity,high thermal stability and electrochemical stability(>4.7 V).Besides,an inorganic/organic-rich solid electrolyte interphase with an abundance of LiF,Li3N and Li-N-C is in situ formed,leading to spherical lithium deposition.The formation mechanism and solvation chemistry of amide-based electrolyte are further inves-tigated by molecular dynamics simulations and density functional theory.When applied in Li metal batteries with LiFePO4 and LiMn2O4 cathode,the amide-based electrolyte can enable stable cycling performance at room temperature and 60℃.This study provides a new insight into the development of amide-based electrolytes for lithium metal batteries. | Wanbao Wu Yiyang Bo Deping Li Yihong Liang Jichuan Zhang Miaomiao Cao Ruitian Guo Zhenye Zhu Lijie Ci Mingyu Li Jiaheng Zhang | 2022 | Nano-Micro Letters2022，14，3： | 2 |
| 8 | Screening melamine adulterant in milk powder with laser Raman spectrometry显示文摘 | Yan Cheng Yiyang Dong Jinghang Wu Xiaoran Yang Hua Bai Hongyan Zheng Dongmei Ren Yundong Zou Ming Li | 2009 | Journal of Food Composition and Analysis2009，，2： | 2 |
| 9 | Stable perovskite solar cells with efficiency of 22.6%via quinoxaline-based polymeric hole transport material显示文摘Poor stability of spiro-OMe TAD hole transport materials(HTMs)with dopant is a major obstacle for the commercialization of perovskite solar cells(pero-SCs).Herein,we demonstrate a series of quinoxaline-based D-A copolymers PBQ5,PBQ6 and PBQ10 as the dopant-free polymer HTMs for high performance pero-SCs.The D-A copolymers are composed of fluorothienyl benzodithiophene(BDTT)as D-unit,difluoroquinoxaline(DFQ)with different side chains as A-unit,and thiophene asπ-bridge,where the side chains on the DFQ unit are bi-alkyl for PBQ5,bi-alkyl-fluorothienyl for PBQ6,and alkoxyl for PBQ10.All the three copolymers are adopted as the dopant-free HTM in the pero-SCs.The planar n-i-p structured pero-SCs based on(FAPb I_(3))_(0.98)(MAPb Br_(3))_(0.02)with PBQ6 HTM demonstrated the high power conversion efficiency(PCE)of 22.6%with Vocof1.13 V and FF of 80.8%,which is benefitted from the suitable energy level and high hole mobility of PBQ6.The PCE of 22.6%is the highest efficiency reported in the n-i-p structured pero-SCs based on dopant-free D-A copolymer HTM.In addition,the peroSCs show significantly enhanced ambient,thermal and light-soaking stability compared with the devices with traditional spiroOMe TAD HTM. | Chenxing Lu Can Zhu Lei Meng Chenkai Sun Wenbin Lai Shucheng Qin Jinyuan Zhang Wenchao Huang Jiaqi Du Yiyang Wang Yongfang Li | 2021 | Science China Chemistry2021，64，11： | 2 |
| 10 | Investigation of spherical and concentric mechanism of compound droplets显示文摘Polymer shells with high sphericity and uniform wall thickness are always needed in the inertial confined fusion(ICF)experiments.Driven by the need to control the shape of water-in-oil(W1/O)compound droplets,the effects of the density matching level,the interfacial tension and the rotation speed of the continuing fluid field on the sphericity and wall thickness uniformity of the resulting polymer shells were investigated and the spherical and concentric mechanisms were also discussed.The centering of W1/O compound droplets,the location and movement of W1/O compound droplets in the external phase(W2)were significantly affected by the density matching level of the key stage and the rotation speed of the continuing fluid field.Therefore,by optimizing the density matching level and rotation speed,the batch yield of polystyrene(PS)shells with high sphericity and uniform wall thickness increased.Moreover,the sphericity also increased by raising the oil/water(O/W2)interfacial tension,which drove a droplet to be spherical.The experimental results show that the spherical driving force is from the interfacial tension affected by the two relative phases,while the concentric driving force,as a resultant force,is not only affected by the three phases,but also by the continuing fluid field.The understanding of spherical and concentric mechanism can provide some guidance for preparing polymer shells with high sphericity and uniform wall thickness. | Meifang Liu Lin Su Jie Li Sufen Chen Yiyang Liu Jing Li Bo Li Yongping Chen Zhanwen Zhang | 2016 | Matter and Radiation at Extremes2016，1，4： | 2 |
| 11 | Flotation separation of lead with Sodium Nitrate-Potassium Iodide-Cetyltrimethyl Ammonium Bromide System显示文摘 | XINAG Yun Xing SHEN Yiyang | 2002 | Journal of the Chinese Chemical Society2002，，49： | 1 |
| 12 | The protective effect of icariin on glucocorticoid-damaged BMECs explored by microfluidic organ chip显示文摘Osteonecrosis of the femoral head(ONFH)is a devastating musculoskeletal disease characterized by the impaired circulation of bone.The purpose of this study was to explore the underlying mechanisms of the protective effect of icariin on the glucocorticoid-induced injury of bone microvascular endothelial cells(BMECs).Normal BMECs were extracted from the femoral heads by enzymatic isolation and magneticactivated cell sorting methods.Dexamethasone and icariin were used to intervene BMECs in microfluidic organ chips,and phalloidin staining was conducted to observe the cell morphology and viability.Then next-generation transcriptome sequencing and real-time quantitative reverse transcription-polymerase chain reaction(q RT-PCR)were performed to identify the differentially expressed genes(DEGs)in different groups.Through the microfluidic organ chip,it can be observed that after dexamethasone intervention,the filamentous structure in cell fibers disappeared and the cell morphology changed from spindle to round until death.Icariin could relieve these changes and showed a protective effect on glucocorticoiddamaged BMECs.In addition,201 DEGs were detected between the icariin protection group and the dexamethasone group,which were significantly enriched in 17 signaling pathways.8 of the top ten selected hub genes(IL6,PTGS2,VEGFA,etc.)were confirmed by q RT-PCR.Transcription factors(TFs)-gene network showed 63 connections between 18 TFs and 12 DEGs.For instance,GATA2 could regulate 5 DEGs.The associations between 92 mi RNA and 12 DEGs were visualized in a mi RNA-gene network.The hub mi RNA,has-mir-335–5 p was predicted to interact with 8 DEGs(PTGS2,VEGFA,etc.).Microfluidic organ chips could provide excellent morphological results for cell experiments,by which it could be observed that icariin showed a protective effect on the glucocorticoid-induced injury of BMECs.Beside,these DEGs,possible regulatory TF(GATA2,FOXC1,etc.)and mi RNA(has-mir-335–5 p)might be dysregulated in the initiation of ONFH and have prospective importance in ONFH diagnosis and therapy. | Tengqi Li Qingyu Zhang Fuqiang Gao Yadi Liu Wei Sun Yiyang Dong | 2022 | Chinese Chemical Letters2022，33，6： | 1 |
| 13 | Formation of craters in polymer capsules显示文摘 | Li Bo Chen Sufen Liu Yiyang | 2009 | Plasma and Fusion Research2009，4，1： | 1 |
| 14 | Association of LIPC - 250G/A polymorphism and several environmental factors with serum lipid levels in the Guangxi Bai Ku Yao and Han populations 显示文摘 | Li Meng Yin Ruixing Li Yiyang | 2010 | Lipids Health Disease2010，9，： | 1 |
| 15 | Self Extensions of Simple Modules in Subregular Nilpotent Representations of sln(k) and so2n+1 (k)显示文摘 | Li Yiyang Shu Bin Yao yufeng | | 0，，： | 1 |
| 16 | Screening melamine adulterant in milk powder with laser Raman spectrometry显示文摘 | Yan Cheng Yiyang Dong Jinghang Wu Xiaoran Yang Hua Bai Hongyan Zheng Dongmei Ren Yundong Zou Ming Li | 2009 | Journal of Food Composition and Analysis2009，，2： | 1 |
| 17 | Filtrations in modular representations of reductive lie algebras显示文摘 | Li Yiyang Shu Bin | | 0，，2： | 1 |
| 18 | Neighbor discovery for ultraviolet ad hoe networks 显示文摘 | LI Yiyang WANG Leijie XU Zhengyuan | 2011 | IEEE Journal on Selected Areas in Commu- nications: Special Issue on Advances in Military Networking and Commu- nications2011，29，10： | 1 |
| 19 | UVOC-MAC: a MAC protocol for outdoor ultraviolet networks 显示文摘 | LI Yiyang NING Jianxia XU Zhengyuan | 2013 | Wireless Network2013，19，6： | 1 |
| 20 | In-situ photoisomerization of azobenzene to inhibit ion-migration for stable high-efficiency perovskite solar cells显示文摘Ion migration is a notorious problem in perovskite solar cells(PSCs)that severely mutilates device performance.Herein,a strategy to inhibit ion migration in situ is developed by using photoisomerization of azobenzene(AZO)to immobilize cations in the lattice.During the nucleation process,the photoisomerized cis-AZO reacts with FA^(+),MA^(+)and Pb2+cations in the perovskite precursor by synergistic cation-πinteraction and Lewis base coordination,leading to heterogeneous nucleation to produce uniform perovskite film.Meanwhile,it accelerates conversion of intermediate yellowδ-phase to desired black aphase of FAPb I3for improved crystallinity with well-passivated grain surface.Consequently,defect density is effectively reduced for the perovskite film to demonstrate suppressed carrier recombination and enhanced carrier extraction.Subsequently,the solar cell efficiency is elevated from 21.29%to 23.58%with negligible J-V hysteresis.Long-term stability is also improved,with the bare device without any encapsulation retaining 84%of its initial efficiency after aging 744 hours in ambient. | Xuejiao Zuo Yiyang He Hongyu Ji Yong Li Xiuying Yang Binxun Yu Tao Wang Zhike Liu Wenliang Huang Jing Gou Ningyi Yuan Jianning Ding Shengzhong Frank Liu | 2022 | Journal of Energy Chemistry2022，31，10： | 1 |
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