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| 1 | Oxidative depolymerization of lignin improved by enzymolysis pretreatment with laccase显示文摘A new lignin depolymerization approach for improving the yield of aromatic monomers(YAM) by enzymolysis pretreatment was investigated, in which lignin was pretreated with laccase followed by oxidative depolymerization. It was found that lignin depolymeirzation was enhanced significantly by enzymolysis. The oxidative depolymerization contributed to 21.37% of YAM after the enzymolysis pretreatment,whereas the conventional oxidative depolymerization only gave 14.10% of YAM. The addition of ethanol in enzymatic pretreatment process improved the efficiency of enzymolysis, which effectively improved the solubility of pretreated lignin and depolymerization degree(DD) of lignin. The enzymolysis pretreatment increased the content of syringyl(S) style aromatic monomers, which hindered the recondensation among polymerized products. As lignin has low solubility in acidic aqueous solution, ethanol was added into enzymolysis system to improve the efficiency. However, the enzymolysis of lignin should be carried out for a limited period of time to prevent the inactivation of laccase. | Yuan Zhu Xinping Ouyang Ying Zhao Linfeng Jiang Haijun Guo Xueqing Qiu | 2018 | Journal of Energy Chemistry2018，27，3： | 4 |
| 2 | Embeddings of weighted Sobolev spaces and degenerate elliptic problems显示文摘New embeddings of some weighted Sobolev spaces with weights a(x)and b(x)are established.The weights a(x)and b(x)can be singular.Some applications of these embeddings to a class of degenerate elliptic problems of the form-div(a(x)?u)=b(x)f(x,u)in?,u=0 on??,where?is a bounded or unbounded domain in RN,N 2,are presented.The main results of this paper also give some generalizations of the well-known Caffarelli-Kohn-Nirenberg inequality. | GUO ZongMing MEI LinFeng WAN FangShu GUAN XiaoHong | 2017 | Science China Mathematics2017，60，8： | 3 |
| 3 | Preparation and study of polypropylene/polyethylene terephthalate composite fibres显示文摘 | Xiaojuan Si Linfeng Guo Yimin Wang Kin-tak Lau | 2007 | Composites Science and Technology2007，，14： | 1 |
| 4 | A Modified Hough Transformation for Line Detection and Its Performance显示文摘 | Opas Chutatape Linfeng Guo | 1999 | Pattern Recognition1999，32，2： | 1 |
| 5 | Structures of human bile acid exporter ABCB11 reveal a transport mechanism facilitated by two tandem substrate-binding pockets显示文摘Dear Editor,Bile acids are a group of cholesterol-derived physiological surfactants required for digestion of lipids and fat-soluble vitamins.1However,excess of bile acids is detrimental to metabolic homeostasis and bile acid imbalance can contribute to cancer progression.2Bile acids are produced primarily in the liver and then secreted to the bile duct before delivery to the small intestine,where up to 95%of bile acids are reabsorbed and recirculated to the liver(Supplementary information,Fig.S1a).The primary bile acids are biosynthesized in hepatocytes via oxidation of cholesterol and modified by either taurine or glycine,forming the conjugated primary bile acids which harbor a cholic acid moiety and a taurine/glycine moiety(Supplementary information,Fig.S1 b).This enterohepatic circulation of bile acids is driven by a series of transmembrane transporters(Supplementary informa-tion,Fig.S1a),including the ATP-binding cassette(ABC)transpor-ter ABCB11(also termed bile salt export pump BSEP). | Liang Wang Wen-Tao Hou Jie Wang Da Xu Cong Guo Linfeng Sun Ke Ruan Cong-Zhao Zhou Yuxing Chen | 2022 | Cell Research2022，32，5： | 1 |
| 6 | A modified Hough transform for line detection and its performance显示文摘 | OPAS CHUTATAPE LINFENG GUO | 1999 | Pattern Recognition1999，，32： | 1 |
| 7 | An Effective State-based Predictive Approach for Leakage Energy Management on Embedded Systems显示文摘 | Guo Minyi Pan Linfeng Yang Yanqin | 2009 | Springer Journal on Design Automation for Embedded Systems2009，13，4： | 1 |
| 8 | A modified Hough transform for line detection and its performance 显示文摘 | Chutatape O Guo Linfeng | 1999 | Pattern Recognition1999，，32： | 1 |
| 9 | Study of the compatibility between light-cured repair materials and composite materials by holographic intefferometry 显示文摘 | Guo Linfeng Zhao Zhimin Gao Mingjuan | 2005 | Optical Engineering2005，44，10： | 1 |
| 10 | Ciphertext-only fault analysis on the Midori lightweight cryptosystem显示文摘Dear editor,The Midori lightweight cipher can be applied in the RFID tags and other low-resource devices to protect information on the Internet.This cipher was proposed by Banik et al.and presented at the ASIACRYPT conference[1].It has a Substitution Permutation Network structure with a 128-bit keysize,and two block-size variants,64 bits and 128 bits.The optimization of its design and implementation mainly consist of replacing an 8-bit S-box with two 4-bit S-boxes.In 2013,Fuhr et al.[2]proposed the ciphertext-only fault analysis(CFA)on AES.Then in 2016,Dobraunig et al.[3]validated the aforementioned CFA using a physical experiment and broke a series of nonce-based authenticated encryption schemes on AES. | Wei LI Linfeng LIAO Dawu GU Shan CAO Yixin WU Jiayao LI Zhihong ZHOU Zheng GUO Ya LIU Zhiqiang LIU | 2020 | Science China(Information Sciences)2020，63，3： | 1 |
| 11 | Influence of discretization in image space on hough transform显示文摘 | Guo Linfeng Opas Chutatape | 1999 | Pattern Recognition1999，32，4： | 1 |
| 12 | Influence of discretization in image space on Hough transform显示文摘 | Guo Linfeng Chutatape Opas | 1999 | Pattern Recognition1999，32，4： | 1 |
| 13 | An Effective Statebased Predictive Approach for Leakage Energy Management on Embedded Systems显示文摘 | Guo Minyi Pan Linfeng Yang Yanqin | 2009 | Springer Journal on Design Automation for Embedded Systems2009，13，4： | 1 |
| 14 | Study of the compatibility between light-cured repair materials and composite materials by holographic interferometry显示文摘 | Guo Linfeng Zhao Zhimin Gao Mingjuan | 2005 | Optical Engineering2005，44，10： | 1 |
| 15 | Influence of discretization in image space on Hough transform显示文摘 | Linfeng Guo Opas Chutatape | 1999 | Pattern Recognition1999，4，32： | 1 |
| 16 | Fuzzy cluster analysis of water mass in the western Taiwan Strait in spring 2019显示文摘The classification of the springtime water mass has an important influence on the hydrography,regional climate change and fishery in the Taiwan Strait.Based on 58 stations of CTD profiling data collected in the western and southwestern Taiwan Strait during the spring cruise of 2019,we analyze the spatial distributions of temperature(T)and salinity(S)in the investigation area.Then by using the fuzzy cluster method combined with the T-S similarity number,we classify the investigation area into 5 water masses:the Minzhe Coastal Water(MZCW),the Taiwan Strait Mixed Water(TSMW),the South China Sea Surface Water(SCSSW),the South China Sea Subsurface Water(SCSUW)and the Kuroshio Branch Water(KBW).The MZCW appears in the near surface layer along the western coast of Taiwan Strait,showing low-salinity(<32.0)tongues near the Minjiang River Estuary and the Xiamen Bay mouth.The TSMW covers most upper layer of the investigation area.The SCSSW is mainly distributed in the upper layer of the southwestern Taiwan Strait,beneath which is the SCSUW.The KBW is a high temperature(core value of 26.36℃)and high salinity(core value of 34.62)water mass located southeast of the Taiwan Bank and partially in the central Taiwan Strait. | Zhiyuan Hu Jia Zhu Longqi Yang Zhenyu Sun Xin Guo Zhaozhang Chen Linfeng Huang | 2023 | Acta Oceanologica Sinica2023，42，12： | 0 |
| 17 | Image compression scheme based on PCA for wireless multimedia sensor networks显示文摘In combination of the characteristic of the network architecture of wireless multimedia sensor networks(WMSNs), a distributed multi-node cooperative network(DMCN) model is designed by using the concept of in-network processing to improve their energy, memory and computational power. To balance the energy consumption of the network, according to roles division, camera nodes and common nodes are cooperated to accomplish the workload of image acquisition, compression and transmission. Camera nodes gather images and send blocking images to the common nodes in cluster. Common nodes adaptively compress the partitioned images by using a noise-tolerant distributed image compression(NDIC) algorithm based on principal component analysis(PCA) called NDIC-PCA algorithm and send the compressed data to the cluster head node. Then, the cluster head node sends the compressed image data to the station. Simulation results demonstrate that, DCNM can effectively balance the energy consumption of network and largely extend the network lifecycle. In addition, compared with previous algorithms, the proposed NDIC-PCA algorithm achieves higher peak signal to noise ratio without decreasing compression ratio. | Zhou Wei Sun Lijuan Guo Jian Liu Linfeng | 2016 | The Journal of China Universities of Posts and Telecommunications2016，23，1： | 0 |
| 18 | An asymmetric non-fused electron-deficient building block for low-cost polymer acceptor in all-polymer solar cells显示文摘The development of polymerized fused-ring small molecule acceptors(FRA-PAs) has boosted the performance of all-polymer solar cells(all-PSCs).However,these FRA-PAs suffer from lengthy synthesis steps and high production costs due to the high degree of synthetic complexity for fused-ring small molecule acceptors(FRAs).Furthermore,most FRA-PAs exhibit strong batch-to-batch variation,limiting further industrial applications.Herein,we designed and synthesized asymmetric non-fused electron-deficient building block TIC-Br with a simple structure(only three synthetic steps),showing a planar configuration,excellent electron affinity,and large dipole moment.A simple polymer acceptor PTIB was further developed by polymerization of TIC-Br and sensitized fluorinated-thienyl benzodithiophene(BDT-TF-Sn).PTIB exhibits a broad absorption from 300 to 800 nm,a suitable lowest unoccupied molecular orbital(LUMO) energy level of-3.86 e V,and moderate electron mobility(1.02×10^(-4)cm^(2)V^(-1)s^(-1)).When matched with PM6,the device achieved the best PCE of 10.11%with a high V_(OC) of 0.97 V,which is one of the highest among those reported all-PSCs.More importantly,PTIB exhibits a lower synthetic complexity index(SC=35.0%)and higher figure-of-merit values(FOM=29.0%) than all the reported high-performance PAs.The polymer also exhibits excellent batch-to-batch reproducibility and great potential for scale-up fabrication.This study indicates that TIC-Br is a promising building block for constructing low-cost polymer acceptors for large-scale applications in all-PSCs. | Haiqin Xiao Linfeng Yu Zhiliang Zhang Haiyan Liang Yu Shi Xia Guo Maojie Zhang Yongfang Li | 2023 | Science China Chemistry2023，66，9： | 0 |
| 19 | Tuning 2D magnetism in Fe_(3+X)GeTe_(2) films by element doping显示文摘Two-dimensional(2D)ferromagnetic materials have been discovered with tunable magnetism and orbital-driven nodal-line features.Controlling the 2D magnetism in exfoliated nanoflakes via electric/magnetic fields enables a boosted Curie temperature(T_(C))or phase transitions.One of the challenges,however,is the realization of high T_(C) 2D magnets that are tunable,robust and suitable for large scale fabrication.Here,we report molecular-beam epitaxy growth of wafer-scale Fe_(3+X)GeTe_(2) films with T_(C) above room temperature.By controlling the Fe composition in Fe_(3+X)GeTe_(2),a continuously modulated T_(C) in a broad range of 185–320 K has been achieved.This widely tunable TC is attributed to the doped interlayer Fe that provides a 40%enhancement around the optimal composition X=2.We further fabricated magnetic tunneling junction device arrays that exhibit clear tunneling signals.Our results show an effective and reliable approach,i.e.element doping,to producing robust and tunable ferromagnetism beyond room temperature in a large-scale 2D Fe_(3+X)GeTe_(2) fashion. | Shanshan Liu Zihan Li Ke Yang Enze Zhang Awadhesh Narayan Xiaoqian Zhang Jiayi Zhu Wenqing Liu Zhiming Liao Masaki Kudo Takaaki Toriyama Yunkun Yang Qiang Li Linfeng Ai Ce Huang Jiabao Sun Xiaojiao Guo Wenzhong Bao Qingsong Deng Yanhui Chen Lifeng Yin Jian Shen Xiaodong Han Syo Matsumura Jin Zou Yongbing Xu Xiaodong Xu Hua Wu Faxian Xiu | 2022 | National Science Review2022，9，6： | 0 |
| 20 | Bidirectional Light-Driven Ion Transport through Porphyrin Metal–Organic Framework-Based van der Waals Heterostructures via pH-Induced Band Alignment Inversion显示文摘Heterogeneous two-dimensional layered membranes reconstructed fromnatural or synthetic van derWaals materials enable novel ion transport mechanisms by coupling with the chemical and optoelectronic properties of the layered constituents.Here,we report a light-driven and pH-dependent bidirectional ion transport phenomenon through porphyrin metal–organic framework(PMOF)and transition metal dichalcogenides-based multilayer van der Waals heterostructures with sub-nanometer ionic channels. | Yuhui Zhang Linfeng Yang Yating Yang Wei Li Biying Liu Xiaoyan Jin Min Zhou Run Long Lei Jiang Wei Guo | 2022 | CCS Chemistry2022，4，10： | 0 |
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