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| 1 | Mineralogy,distribution,occurrence and removability of trace elements during the coal preparation of No.6 coal from Heidaigou mine显示文摘Optical microscopy and scanning electron microscopy in conjunction with energy dispersed X-ray spectrometry(SEM–EDX)were used to study the minerals and the concentrations of 33 trace elements in No.6 coal from Heidaigou mine.The distributions,organic affinity and removability of 18 trace elements were studied by float-sink experiments.A determination of the maceral groups was also undertaken.A high mineral content,dominated by kaolinite,was found in No.6 coal from Heidaigou mine.The bauxite content was relatively high and it was mainly present as individual particles in fusinite lumens or was intimately intergrown with carbonate minerals.The pyrite and quartz contents were low.Some marcasite with a parallel twin structure was observed by cross-polar reflected light.A small amount of bean-like goyazite was present in the calcite.The weighted trace element content in Heidaigou formations is relatively low,which is beneficial for coal processing and utilization.The concentrations of Ga,Hg,Pb,Se,Th,Ta are relatively high compared with the average values of Chinese coals.As,Hg,Mo,Ge,Ga,Ta,Ti,W,Mn are mainly present in minerals while B,Be,Th,P,Sc,Sr,V,Y,Yb are mainly found in organic matter.As,Ge,Hg,Mo are mainly present in sulfides and Be,Th,P,Sc,Sr,Y,Yb are mainly present in inertinite.B and V are mainly present in vitrinite.The high organic affinity and the low theoretical removability of most trace elements cause difficulties in removing them during coal preparation. | Xiangfei Bai Yue Wang Wenhua Li | 2014 | International Journal of Coal Science & Technology2014，1，4： | 12 |
| 2 | Essential roles of exosome and circRNA_101093 on ferroptosis desensitization in lung adenocarcinoma显示文摘Background:Resistance to ferroptosis,a regulated cell death caused by irondependent excessive accumulation of lipid peroxides,has recently been linked to lung adenocarcinoma(LUAD).Intracellular antioxidant systems are required for protection against ferroptosis.The purpose of the present studywas to investigate whether and how extracellular system desensitizes LUAD cells to ferroptosis.Methods:Established human lung fibroblasts MRC-5,WI38,and human LUAD H1650,PC9,H1975,H358,A549,and H1299 cell lines,tumor and matched normal adjacent tissues of LUAD,and plasma from healthy individuals and LUAD patients were used in this study.Immunohistochemistry and immunoblotting were used to analyze protein expression,and quantitative reverse transcription-PCR was used to analyze mRNA expression.Cell viability,cell death,and the lipid reactive oxygen species generationwere measured to evaluate the responses to ferroptosis.Exosomes were observed using transmission electron microscope.The localization of arachidonic acid(AA)was detected using click chemistry labeling followed by confocal microscopy.Interactions between RNAs and proteins were detected using RNA pull-down,RNA immunoprecipitation and photoactivatable ribonucleoside-enhanced crosslinking and immunoprecipitation methods.Proteomic analysis was used to investigate RNA-regulated proteins,and metabolomic analysis was performed to analyze metabolites.Cellderived xenograft,patient-derived xenograft,cell-implanted intrapulmonary LUAD mouse models and plasma/tissue specimens from LUAD patients were used to validate the molecular mechanism.Results:Plasma exosome from LUAD patients specifically reduced lipid peroxidation and desensitized LUAD cells to ferroptosis.A potential explanation is that exosomal circRNA_101093(cir93)maintained an elevation in intracellular cir93 in LUAD to modulate AA,a poly-unsaturated fatty acid critical for ferroptosisassociated increased peroxidation in the plasma membrane.Mechanistically,cir93 interacted with and increased fatty acid-binding protein 3(FABP3),which transported AA and facilitated its reaction with taurine.Thus,global AA was reduced,whereas N-arachidonoyl taurine(NAT,the product of AA and taurine)was induced.Notably,the role of NAT in suppressing AA incorporation into the plasma membrane was also revealed.In pre-clinical in vivo models,reducing exosome improved ferroptosis-based treatment.Conclusion:Exosome and cir93 are essential for desensitizing LUAD cells to ferroptosis,and blocking exosome may be helpful for future LUAD treatment. | Xiao Zhang Yunhua Xu Lifang Ma Keke Yu Yongjie Niu Xin Xu Yi Shi Susu Guo Xiangfei Xue Yikun Wang Shiyu Qiu Jiangtao Cui Hong Wang Xiaoting Tian Yayou Miao Fanyu Meng Yongxia Qiao Yongchun Yu Jiayi Wang | 2022 | Cancer Communications2022，42，4： | 10 |
| 3 | Photonic integrated technology for multi-wavelength laser emission显示文摘We summarized the design, fabrication challenges and important technologies for multi-wavelength laser transmitting photonic integration. Technologies discussed include multi-wavelength laser arrays, monolithic integration and modularizing coupling and packaging. Fabrication technique requirements have significantly declined with the rise of reconstruction-equivalent-chirp and second nanoimprint mask technologies. The monolithic integration problem between active and passive waveguides can be overcome with Butt-joint and InP array waveguide grating technologies. The dynamic characteristics of multi-factors will be simultaneously measured with multi-port analyzing modules. The performance of photonic integration chips is significantly improved with the autoecious factors compensation packaging technique. | CHEN XiangFei LIU Wen AN JunMing LIU Yu XU Kun WANG Xin LIU JianGuo JI YueFeng ZHU NingHua | 2011 | Chinese Science Bulletin2011，56，28： | 9 |
| 4 | Effects of rainfall patterns on annual plants in Horqin Sandy Land, Inner Mongolia of China显示文摘Growth of annual plants in arid environments depends largely on rainfall pulses. An increased understanding of the effects of different rainfall patterns on plant growth is critical to predicting the potential responses of plants to the changes in rainfall regimes, such as rainfall intensity and duration, and length of dry intervals. In this study, we investigated the effects of different rainfall patterns(e.g. small rainfall event with high frequency and large rainfall event with low frequency) on biomass, growth characteristics and vertical distribution of root biomass of annual plants in Horqin Sandy Land, Inner Mongolia of China during the growing season(from May to August) of 2014. Our results showed that the rainfall patterns, independent of total rainfall amount, exerted strong effects on biomass, characteristics of plant growth and vertical distribution of root biomass. Under a constant amount of total rainfall, the aboveground biomass(AGB), belowground biomass(BGB), plant cover, plant height, and plant individual and species number increased with an increase in rainfall intensity. Changes in rainfall patterns also altered the percentage contribution of species biomass to the total AGB, and the percentage of BGB at different soil layers to the total BGB. Consequently, our results indicated that increased rainfall intensity in future may increase biomass significantly, and also affect the growth characteristics of annual plants. | YUE Xiangfei ZHANG Tonghui ZHAO Xueyong LIU Xinping MA Yunhua | 2016 | Journal of Arid Land2016，8，3： | 8 |
| 5 | Recent progress of integrated circuits and optoelectronic chips显示文摘Integrated circuits(ICs)and optoelectronic chips are the foundation stones of the modern information society.The IC industry has been driven by the so-called'Moore's law'in the past 60 years,and now has entered the post Moore's law era.In this paper,we review the recent progress of ICs and optoelectronic chips.The research status,technical challenges and development trend of devices,chips and integrated technologies of typical IC and optoelectronic chips are focused on.The main contents include the development law of IC and optoelectronic chip technology,the IC design and processing technology,emerging memory and chip architecture,brain-like chip structure and its mechanism,heterogeneous integration,quantum chip technology,silicon photonics chip technology,integrated microwave photonic chip,and optoelectronic hybrid integrated chip. | Yue HAO Shuiying XIANG Genquan HAN Jincheng ZHANG Xiaohua MA Zhangming ZHU Xingxing GUO Yahui ZHANG Yanan HAN Ziwei SONG Yan LIU Ling YANG Hong ZHOU Jiangyi SHI Wei ZHANG Min XU Weisheng ZHAO Biao PAN Yangqi HUANG Qi LIU Yimao CAI Jian ZHU Xin OU Tiangui YOU Huaqiang WU Bin GAO Zhiyong ZHANG Guoping GUO Yonghua CHEN Yong LIU Xiangfei CHEN Chunlai XUE Xingjun WANG Lixia ZHAO Xihua ZOU Lianshan YAN Ming LI | 2021 | Science China(Information Sciences)2021，64，10： | 7 |
| 6 | The distribution and occurrence of mercury in Chinese coals显示文摘 | Xiangfei Bai Wenhua Li Yue Wang Hua Ding | 2017 | International Journal of Coal Science & Technology2017，4，2： | 6 |
| 7 | Force tracking impedance control with unknown environment via an iterative learning algorithm显示文摘Dear editor,Force tracking control is important for constrained operations. In recent years, impedance control is garnering increasing attention in robot force control. A new two-phase impedance function through null stiffness in an original impedance equation to satisfy zero-force tracking error for any environment was presented in (1, 2)Further improvement was performed in (3)。 | Xiuquan LIANG Huan ZHAO Xiangfei LI Han DING | 2019 | Science China(Information Sciences)2019，62，5： | 6 |
| 8 | First demonstration of 1.3μm quarter-wavelength shift distributed feedback(DFB) semiconductor laser based on conventional photolithography显示文摘A 1.3 μm distributed feedback(DFB) semiconductor laser with equivalent λ/4 phase shift based on reconstruction equivalent chirp(REC) technique is numerically studied and experimentally demonstrated.The simulation results show that the 1.3 μm DFB laser with equivalent λ/4 phase shift based on the REC technique performs the same as that of actual λ/4 phase shift DFB laser,with nearly the same P-I curves,the internal power distributions and the output ASE spectra.Compared with the traditional λ/4 phase shift DFB laser,the REC based laser only changes the sampling structures with the uniform seed waveguide grating instead of the actual grating structures.As a result,the fabrication of such laser will be very easy.In this paper,we successfully fabricated the 1.3 μm DFB laser based on the REC technique for the first time to the best of our knowledge. | LU LinLin SHI YueChun CHEN XiangFei | 2013 | Chinese Science Bulletin2013，58，7： | 6 |
| 9 | Distribution and occurrence of trace elements in the No.14 coal from the Huolinhe mine显示文摘 | Xiangfei Bai Yue Wang Wenhua Li | 2017 | International Journal of Coal Science & Technology2017，4，3： | 5 |
| 10 | Numerical study of three phase shifts and dual corrugation pitch modulated(CPM) DFB semiconductor lasers based on reconstruction equivalent chirp technology显示文摘A distributed feedback(DFB) semiconductor laser with three phase shifts based on reconstruction equivalent chirp(REC) technology is proposed and investigated numerically.With the combination of multiple phase shifts and corrugation pitch modulated(CPM) structure,we also propose a novel and more complex structure named dual CPM,which has a flatter light power distribution along the laser cavity compared with the true double phase shifts DFB laser diode(LD),while the P-I curves are nearly the same.The proposed dual CPM structure is also designed and analyzed based on REC technology.The simulation results show that,the DFB semiconductor laser with complex structure such as phase shifts,or even arbitrary variation of the grating period can be achieved equivalently and easily by changing the sampling structure.But its external characteristics are almost the same as those DFB lasers with true phase shifts,or true arbitrary variation of the grating period.The key advantage of the REC technology is that it varies only the sampling structure and keeps the seed grating(actual grating in sampling structure) period constant.So its fabrication needs only low-cost and standard holographic exposure technology.Therefore we believe this method can achieve the high-end and low-cost DFB LD for mass production. | SHI YueChun TU XingHua LI SiMin ZHOU YaTing JIA LingHui CHEN XiangFei | 2010 | Chinese Science Bulletin2010，55，35： | 4 |
| 11 | Microemulsion synthesis and photocatalytic activity of visible light-active BiVO_4 nanoparticles显示文摘A water-in-oil microemulsion made up of a cyclohexane/n-hexyl alcohol/Polyethylene glycol tertoctylphenyl/aqueous solution including Bi3+ and VO+3 ions yields the spherical BiVO4 precursors with the size from 5 to 300 nm. Well-crystallized monoclinic scheelite BiVO4 particles with nanometer or micrometer size are fabricated in control by heating microemulsion precursors under various temperatures. The corresponding nucleation and growth process of as-prepared samples has also been investigated via TEM,which demonstrates the detailed morphological evolution of nuclei inside the precursors. As-prepared BiVO4 photocatalysts exhibit enhanced photocatalytic activity under visible-light irradiation in comparison with the bulk BiVO4 prepared by solid-state reaction. The highest RB degrading efficiency of 98% in 180 min under visible-light irradiation is observed for the sample calcined at 600 °C. | LIU Wei WANG XiangFei CAO LiXin SU Ge ZHANG Lan WANG Yong Gang | 2011 | Science China Chemistry2011，54，5： | 4 |
| 12 | Optical microscopy analysis of briquette binders显示文摘Environmental requirements and demands from the coal industry have resulted in a boom in briquetting technology in China.In this work,a low-volatility bituminous coal from the Changcun mine and bentonite binders are used for briquetting.The compressive strength,impact strength,and thermal stability of briquettes made using different binder concentration are determined.The morphology and distribution of binders in briquettes are studied by optical microscopy and digital image-processing technologies.The concept of roundness is introduced to indicate the pressure to which the binders are subjected during briquetting.The influences of binder morphology on briquette strength are discussed.The binders are mainly in aggregated and dispersed forms,present in similar proportions in the briquettes.Aggregated binders with large differences in size are not well-distributed.Binder roundness values are concentrated between 1.5 and 4.0,which indicates that most aggregated binders are compressed and conform well to the surfaces of coal particles.A few binders had roundness value approximating 1 or above 4,which indicated that these were under little pressure or overloaded,respectively.The relationships between briquette strength and binder morphology show that aggregated binders are detrimental to mechanical strength while dispersed binders benefit briquetting. | Yue Wang Xiangfei Bai | 2014 | International Journal of Coal Science & Technology2014，1，4： | 4 |
| 13 | Experimental demonstration of the three-phase-shifted DFB semiconductor laser with buried heterostructure using common holographic exposure显示文摘In this article,we report the first experimental demonstration of the three-phase-shifted(3PS)DFB semiconductor laser with buried heterostructure based on the Reconstruction-Equivalent-Chirp(REC)technique.The simulation results show that the performances of the equivalent 3PS DFB semiconductor laser are nearly the same as those of the true 3PS laser.Compared with the quarter-wave-phase shift(QWS)DFB semiconductor laser,the 3PS DFB semiconductor laser shows better single-longitude-mode(SLM)property even at high injection current with high temperature.However,it only changes theμm-level sampling structures but the seed grating is uniform using the REC technique.Therefore,its fabrication cost is low. | LU LinLin CAO BaoLi ZHANG LiBo TANG Song LI LianYan LI SiMin SHI YueChun CHEN XiangFei | 2014 | Science China(Technological Sciences)2014，57，11： | 4 |
| 14 | Pattern of No.12a lymph node metastasis in gastric cancer显示文摘Objective:The current standard D2 lymphadenectomy for gastric cancer(GC)includes dissection of lymph nodes(LNs)along the proper hepatic artery(No.12 a),however,the survival benefit remains controversial.The purpose of this study was to evaluate the pattern of No.12 a LN metastasis(LNM)in GC and explore the indications for No.12 a LN dissection.Methods:Medical records of 413 consecutive GC patients who underwent curative surgery in Zhongshan Hospital,Fudan University between January 2015 and December 2018 were enrolled and reviewed retrospectively.The correlation between No.12 a LNM and clinicopathologic characteristics of patients was analyzed.Results:The overall incidence of No.12 a LNM was 2.67%(11/413).Tumor location(P=0.012),depth of tumor infiltration(P<0.01)and N stage(P=0.018)were significant factors associated with No.12 a LNM.All the tumors with No.12 a LNM involved the lower third of the stomach and were in T3-4 stages.Patients with No.12 a LNM had extensive LNM than those without(20.91±4.25 vs.5.0±0.54,P<0.001).For advanced GC patients(stage III/IV)with tumors involving the lower third of the stomach,the incidence of No.12 a LNM increased to 10.7%(11/103).Patients with No.12 a LNM had a significantly poorer recurrence-free survival(RFS)(P=0.005)and overall survival(OS)(P=0.017).According to the result of multivariable Cox regression,No.12 a LNM was not an independent impact factor on RFS and OS.Conclusions:The overall incidence of No.12 a LNM was low but it was much higher in GC patients who had very advanced tumors involving the lower third of the stomach.No.12 a LN dissection should be considered for these patients to improve the survival outcomes. | Ping Shu Xiangfei Sun Fenglin Liu Yong Fang Kuntang Shen Yihong Sun Jing Qin Xinyu Qin | 2021 | Chinese Journal of Cancer Research2021，33，1： | 3 |
| 15 | A critical literature review of bioretention research for stormwater management in cold climate and future research recommendations显示文摘 | Hannah Kratky Zhan Li Yijun Chen Chengjin Wang Xiangfei Li Tong Yu | 2017 | Frontiers of Environmental Science & Engineering2017，11，4： | 3 |
| 16 | Compact packaging for multi-wavelength DML TOSA显示文摘A compact multi-wavelength hybrid-integrated directly-modulated distributed-feedback laser(DML)transmitter optical sub-assembly(TOSA)has been achieved in our laboratory.The 8-channel distributed feedback(DFB)lasers are monolithically integrated based on the reconstruction-equivalent-chirp(REC)technology.With the high-density and high-speed packaging technique,the laser array and a multi-mode interference(MMI)multiplexer are assembled in the TOSA.The channel spacing of the TOSA is 200 GHz between adjacent lasers.It meets the 8 9 12.5 Gb/s operation demand and gives rather low channel crosstalk of less than-25 dB.This compact TOSA is of effective cost and shows good stability for mass production,which is expected to improve the performance of devices in access networks,data centers and supercomputing. | Jiasheng Wang Yu Liu Xiangfei Chen Jianguo Liu Ninghua Zhu | 2014 | Chinese Science Bulletin2014，59，20： | 3 |
| 17 | Historical Evolution of Mariculture in China During Past 40 Years and Its Impacts on Eco-environment显示文摘The rapid development of mariculture in China in recent decades has satisfied people's demand of seafood, and has made a great contribution to economic development. However, mariculture has also caused some negative impacts on the eco-environment. By statistically analyzing national data(as well as data for four main provinces) regarding the mariculture area and cultivation species in China since reform and opening up, the historical evolution of mariculture during the past 40 years was analyzed, the driving factors related to policy, market and technology innovation were discussed, and the potential impacts of mariculture on the coastal eco-environment were also illustrated. The statistical results indicated that the maricultural area increased radically during the past 40 years, from 1979(116.47 × 10~3 ha) to 2012(2205.65 × 10~3 ha), with an increase of nearly 20-fold. Shandong Province represented the fastest-growing region, with an increase of 31-fold. Moreover, the cultivated species had gradually become diversified. Initially, shellfish and algae were major species, and then it developed to various species including fish, and currently shellfish and crustaceans were the major species. The development of mariculture was driven by government policies, market economy and technology innovation. Rapid development of mariculture also caused significantly adverse impacts on the eco-environment of the coastal regions. For example, the sea reclamation for mariculture decreased the area and function of coastal wetlands and the contaminants originating from mariculture destroyed the coastal aquatic environment. Fortunately, the implementation of ‘13 th Five-Year Fisheries Planning' is expected to help both improve the seafood quality and reduce the contamination in coastal aquatic environment. This current study will provide reference for management and structure adjustment of mariculture in the future. | LIANG Yinxiu CHENG Xianwei ZHU Hui Brian SHUTES YAN Baixing ZHOU Qingwei YU Xiangfei | 2018 | Chinese Geographical Science2018，28，3： | 3 |
| 18 | Photonic integrated spiking neuron chip based on a self-pulsating DFB laser with a saturable absorber显示文摘We proposed and experimentally demonstrated a simple and novel photonic spiking neuron based on a distributed feedback(DFB)laser chip with an intracavity saturable absorber(SA).The DFB laser with an intracavity SA(DFBSA)contains a gain region and an SA region.The gain region is designed and fabricated by the asymmetric equivalentπ-phase shift based on the reconstruction-equivalent-chirp technique.Under properly injected current in the gain region and reversely biased voltage in the SA region,periodic self-pulsation was experimentally observed due to the Q-switching effect.The self-pulsation frequency increases with the increase of the bias current and is within the range of several gigahertz.When the bias current is below the self-pulsation threshold,neuronlike spiking responses appear when external optical stimulus pulses are injected.Experimental results show that the spike threshold,temporal integration,and refractory period can all be observed in the fabricated DFB-SA chip.To numerically verify the experimental findings,a time-dependent coupled-wave equation model was developed,which described the physics processes inside the gain and SA regions.The numerical results agree well with the experimental measurements.We further experimentally demonstrated that the weighted sum output can readily be encoded into the self-pulsation frequency of the DFB-SA neuron.We also benchmarked the handwritten digit classification task with a simple single-layer fully connected neural network.By using the experimentally measured dependence of the self-pulsation frequency on the bias current in the gain region as an activation function,we can achieve a recognition accuracy of 92.2%,which bridges the gap between the continuous valued artificial neural networks and spike-based neuromorphic networks.To the best of our knowledge,this is the first experimental demonstration of a photonic integrated spiking neuron based on a DFB-SA,which shows great potential to realizing large-scale multiwavelength photonic spiking neural network chips. | YUECHUN SHI SHUIYING XIANG XINGXING GUO YAHUI ZHANG HONGJI WANG DIANZHUANG ZHENG YUNA ZHANG YANAN HAN YONG ZHAO XIAOJUN ZHU XIANGFEI CHEN XUN LI YUE HAO | 2023 | Photonics Research2023，11，8： | 2 |
| 19 | The Role of Social Media in Providing Crisis Information in China:A Critical Evaluation of the Tianjin Fire Incident显示文摘This paper focusses on the information asymmetry in crisis news after a serious incident in Tianjin, China, in 2015. The incident caused enormous damage and resulted in societal unrest because of the lack of reliable information from the formal media channels. Social media — micro blogs —played a major role in reporting on crisis situations. We divided netizens(i.e., the citizens of the net)into high and low types according to their information-critical level to the crisis news. The data shows information deterioration on the crisis news, related to the netizens' information-critical level. For the traditional media there is the opportunity to use information quality distortion to make more marginal profits. This is possible only if the citizens' information stays under a certain quality level. The result is overprovision of low quality news and high quality news driven out of the market, whereupon adverse selection(i.e., a lack of symmetric information) appears. However, by adopting a process view, we found self-correcting mechanism(i.e., dying out of rumors) of the social media communities in China.We provided a agent-base model and simulation to show that the more media exist in the market, the faster speed of the information deterioration, but also the capacity to ‘discuss' rumors. | Xiangfei LI Kees BOERSMA | 2017 | Journal of Systems Science and Information2017，8，6： | 2 |
| 20 | Precision in Liver Surgery显示文摘 | Jiahong Dong ShiZhong Yang Jianping Zeng Shouwang Cai Wenbin Ji Weidong Duan Aiqun Zhang Weizheng Ren Yinzhe Xu Jingwang Tan Xiangyang Bu Ning Zhang Xuedong Wang Xianqiang Wang Xiangfei Meng Kai Jiang Wanqing Gu Zhiqiang Huang | 2013 | Semin Liver Dis2013，，03： | 2 |
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