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| 1 | On the 2~m-variable symmetric Boolean functions with maximum algebraic immunity显示文摘<正>The properties of the 2~m-variable symmetric Boolean functions with maximum al- gebraic immunity are studied in this paper.Their value vectors,algebraic normal forms,and algebraic degrees and weights are all obtained.At last,some necessary conditions for a symmetric Boolean function on even number variables to have maximum algebraic immunity are introduced. | QU LongJiang LI Chao | 2008 | Science in China(Series F)2008,51,2: | 12 |
| 2 | On the number of rotation symmetric Boolean functions显示文摘Rotation symmetric Boolean functions (RSBFs) have been used as components of different cryptosystems. This class of functions are invariant under circular translation of indices. In this paper, we investigated balanced RSBFs and 1st order correlation immune RSBFs. Based on constructive techniques, we give an accurate enumeration formula for n-variable balanced RSBFs when n is a power of a prime. Furthermore, an original and efficient method to enumerate all n-variable (n prime) 1st order correlationimmune functions is presented. The exact number of 1st order correlation immune RSBFs with 11 variables is 6925047156550478825225250374129764511077684773805520800 and the number of 13 variables has 189 digits. Then for more variables, we also provide a significant lower bound on the number of 1st order correlation immune RSBFs. | FU ShaoJing LI Chao QU LongJiang | 2010 | Science China(Information Sciences)2010,53,3: | 8 |
| 3 | Atomic-Scale Layer-by-Layer Deposition of Fe SiAl@ZnO@Al_(2)O_(3) Hybrid with Threshold Anti-Corrosion and Ultra-High Microwave Absorption Properties in Low-Frequency Bands显示文摘Developing highly efficient magnetic microwave absorb-ers(MAs)is crucial,and yet challenging for anti-corrosion properties in extremely humid and salt-induced foggy environments.Herein,a dual-oxide shell of ZnO/Al_(2)O_(3) as a robust barrier to FeSiAl core is introduced to mitigate corrosion resistance.The FeSiAl@ZnO@Al_(2)O_(3) layer by layer hybrid structure is realized with atomic-scale precision through the atomic layer deposition technique.Owing to the unique hybrid structure,the FeSiAl@ZnO@Al_(2)O_(3) exhibits record-high micro-wave absorbing performance in low-frequency bands covering L and S bands with a minimum reflection loss(RLmin)of-50.6 dB at 3.4 GHz.Compared with pure FeSiAl(RLmin of-13.5 dB,a bandwidth of 0.5 GHz),the RLmin value and effective bandwidth of this designed novel absorber increased up to~3.7 and~3 times,respectively.Fur-thermore,the inert ceramic dual-shells have improved 9.0 times the anti-corrosion property of FeSiAl core by multistage barriers towards corrosive medium and obstruction of the electric circuit.This is attributed to the large charge transfer resistance,increased impedance modulus|Z|0.01 Hz,and frequency time constant of FeSiAl@ZnO@Al_(2)O_(3).The research demonstrates a promising platform toward the design of next-generation MAs with improved anti-corrosion properties. | Wei Tian Jinyao Li Yifan Liu Rashad Ali Yang Guo Longjiang Deng Nasir Mahmood Xian Jian | 2021 | Nano-Micro Letters2021,13,10: | 6 |
| 4 | Remineralization of enamel caries by an amelogenin-derived peptide and fluoride in vitro显示文摘Dental caries is one of the most common oral diseases in the world.This study was tantamount to investigate the combinatory effects of an amelogenin-derived peptide(called QP5)and fluoride on the remineralization of artificial enamel caries.The peptide QP5 was synthesized and characterized,and the binding capability of the peptide on hydroxyapatite(HA)and demineralized tooth enamel surface was analysed.Then,the mineralization function of the peptide and fluoride was studied through the spontaneous mineralization testing and remineralization on enamel caries in vitro.First,the novel peptide QP5 could bind on the hydroxyapatite and demineralized tooth enamel surfaces.Second,QP5 can transitorily stabilize the formation of amorphous calcium phosphate and direct the transformation into hydroxyapatite crystals alone and in combination with fluoride.In addition,compared to blocks treated by peptide QP5 alone or fluoride,the sample blocks showed significantly higher surface microhardness,lower mineral loss and shallower lesion depth after treatment with a combination of QP5 and fluoride at high or low concentrations.The peptide QP5 could control the crystallization of hydroxyapatite,and combinatory application of peptide QP5 and fluoride had a potential synergistic effect on the remineralization of enamel caries. | Longjiang Ding Sili Han Kun Wang Sainan Zheng Wenyue Zheng Xiu Peng Yumei Niu Wei Li Linglin Zhang | 2020 | Regenerative Biomaterials2020,7,3: | 6 |
| 5 | Environmental change since mid-Pleistocene recorded in Shangshan achaeological site of Zhejiang显示文摘在迟了的时期的大约 173 ka BP 中间 -- 更新世,河的第二个平台被形成了由于因为气候,海水平变化和构造行动,高举发生在 Shangshan 区域。在 173 75 ka BP 之间。 | MAO Longjiang MO Duowen JIANG Leping JIA Yaofeng LIU Xiaoyan LI Minglin ZHOU Kunshu SHI Chenxi | 2008 | Journal of Geographical Sciences2008,18,2: | 6 |
| 6 | Anti-biofilm and remineralization effects of chitosan hydrogel containing amelogeninderived peptide on initial caries lesions显示文摘In this study,we have designed a more clinically powerful anti-caries treatment by applying the amelogenin-derived peptide QP5 to the antibacterial carrier material chitosan in a hydrogel(CS-QP5 hydrogel),and characterized its effects on the inhibition of a cariogenic biofilm and the promotion of the remineralization of the initial caries lesions.The results indicated that the CS-QP5 hydrogel sustainably inhibited the growth of the Streptococcus mutans biofilm,lactic acid production and the metabolic activity over a prolonged period of time.Moreover,the CS-QP5 hydrogel promoted the remineralization of early enamel lesions,which were indicated by surface microhardness(,polarized light microscopy and transverse microradiography.In conclusion,the CS-QP5 hydrogel shows good potential for caries control in the clinic because of its antibacterial effects as well as the remineralization of initial enamel carious lesions even in a biofilm model over a prolonged period of time. | Qian Ren Zhongcheng Li Longjiang Ding Xiuqing Wang Yumei Niu Xi Qin Xuedong Zhou Linglin Zhang | 2018 | Regenerative Biomaterials2018,5,2: | 5 |
| 7 | Mapping epistasis and environment × QTX interaction based on four-omics genotypes for the detected QTX loci controlling complex traits in tobacco显示文摘Using newly developed methods and software, association mapping was conducted for chromium content and total sugar in tobacco leaf, based on four-omics datasets. Our objective was to collect data on genotype and phenotype for 60 leaf samples at four developmental stages, from three plant architectural positions and for three cultivars that were grown in two locations. Association mapping was conducted to detect genetic variants at quantitative trait SNP(QTS) loci, quantitative trait transcript(QTT) differences,quantitative trait protein(QTP) variability, and quantitative trait metabolite(QTM) changes,which can be summarized as QTX locus variation. The total heritabilities of the four-omics loci for both traits tested were 23.60% for epistasis and 15.26% for treatment interaction.Epistasis and environment × treatment interaction had important impacts on complex traits at all-omics levels. For decreasing chromium content and increasing total sugar in tobacco leaf, six methylated loci can be directly used for marker-assisted selection, and expression of ten QTTs, seven QTPs and six QTMs can be modified by selection or cultivation. | Liyuan Zhou Ruiyuan Li Longjiang Fan Yuewei Shi Zhihong Wang Shengdong Xie Yijie Gui Xueliang Ren Jun Zhu | 2013 | The Crop Journal2013,1,2: | 4 |
| 8 | Paleosalinity in the Tianluoshan site and the correlation between the Hemudu culture and its environmental background显示文摘Tianluoshan 地点的 Paleosalinity 记录从泥土矿物质的 measurations 数据被导出,硼,锶,钡,在在 Tianluoshan 地点的三侧面的领域采样以后。相对的海水平变化根据实验室结果被讨论。记录显示 Tianluoshan 地点定位了的区域见证以前高看台的水平至少三次相对的海,在期间并且在 Hemudu 时期以后。基于以前的研究,这篇论文也集中于包括地讨论 Hemudu 文化的几个环境元素,在环境状况之间的相互关系,人的活动和开发。 | LI Minglin MO Duowen MAO Longjiang SUN Guoping ZHOU Kunshu | 2010 | Journal of Geographical Sciences2010,20,3: | 4 |
| 9 | SQUARE attack on block ciphers with low algebraic degree显示文摘By using an algebraic method, the mathematical foundation of SQUARE attack is studied in this paper. We point out that a SQUARE distinguisher exists if and only if the degree of the polynomial function between n-bit input which is active and n-bit output which is balanced is 2 n-2. And the algebraic method can also be used to determine the property of a balanced set after passed through a nonlinear S-box, by which in some cases we can find a SQUARE distinguisher with more rounds. The validity of SQUARE attack and the influence of the choice of S-box are also studied. If the round function of a Feistel cipher has a low algebraic degree, a SQUARE attack cannot recover the right keys in some special cases. However, SQUARE attack on SPN ciphers always holds. The relations among SQUARE attack and some other cryptanalytic method are studied, showing that if a cipher is breakable by SQUARE attack, then it is also breakable by the interpolation attack. | SUN Bing LI RuiLin QU LongJiang LI Chao | 2010 | Science China(Information Sciences)2010,53,10: | 4 |
| 10 | Refined Kernel Principal Component Analysis Based Feature Extraction显示文摘 | LI Junbao YU Longjiang SUN Shenghe | 2011 | Chinese Journal of Electronics2011,20,3: | 4 |
| 11 | Development of DArT markers for a linkage map of flue-cured tobacco显示文摘Tobacco(Nicotiana tabacum) is one of the most economically important nonfood crops,and flue-cured tobacco accounts for approximately 80% of world tobacco production.An extremely narrow genetic diversity in the tobacco pool has led to a low efficiency of PCR-based molecular markers(such as AFLP and SSR).Diversity Arrays Technology(DArT) is a high-throughput hybridisation-based marker system that has been developed in many plants including wheat,which,like tobacco,has a complex genome.In this study,we developed a tobacco DArT chip that included 7680 representative sequence tags based on typical tobacco accessions.The 1076 DArT markers of flue-cured tobacco were identified and most(82.1%) of their polymorphism information contents(PICs) were greater than 0.4.An integrated linkage map that included 851 markers(238 DArT and 613 SSR),which is the highest density map of flue-cured tobacco to date,was constructed.This chip-based DArT system provides an alternative in high-throughput marker genotyping for tobacco. | LU XiuPing GUI YiJie XIAO BingGuang LI YongPing TONG ZhiJun LIU Yun BAI XueFei WU WeiRen XIA Ling HUTTNER Eric KILIAN Adrzej FAN LongJiang | 2013 | Chinese Science Bulletin2013,58,6: | 4 |
| 12 | On the differential uniformities of functions over finite fields显示文摘In this paper, the possible value of the differential uniformity of a function over finite fields is discussed. It is proved that, the differential uniformity of a function over Fq can be any even integer between 2 and q when q is even; and it can be any integer between 1 and q except q-1 when q is odd. Moreover, for any possible differential uniformity t, an explicit construction of a differentially t-uniform function is given. | QU LongJiang LI Chao DAI QingPing KONG ZhiYin | 2013 | Science China Mathematics2013,56,7: | 4 |
| 13 | Comparative study of carbonic anhydrase activity in waters among different geological eco-environments of Yangtze River basin and its ecological significance显示文摘This study provides the presence of carbonic anhydrase(CA) activity in waters of the Yangtze River basin, China, as well as the correlation of CA activity with HCO-3 concentration and CO_2 sink flux. Different degrees of CA activity could be detected in almost all of the water samples from different geological eco-environments in all four seasons. The CA activity of water samples from karst areas was significantly higher than from non-karst areas(PP3-concentration(r = 0.672, P2 sink flux(r = 0.602, P = 0.076) in karst areas. This suggests that CA in waters might have a promoting effect on carbon sinks for atmospheric CO_2 in karst river basins. In conditions of similar geological type, higher CA activity was generally detected in water samples taken from areas that exhibited better eco-environments, implying that the CA activity index of waters could be used as an indicator for monitoring ecological environments and protection of river basins. These findings suggest that the role of CA in waters in the karst carbon sink potential of river basins is worthy of further in-depth studies. | Sila Onesmus Nzung'a Weizhi Pan Taiming Shen Wei Li Xiaoqun Qin Chenwei Wang Liankai Zhang Longjiang Yu | 2018 | Journal of Environmental Sciences2018,30,4: | 3 |
| 14 | Downregulation of ceramide synthase 1 promotes oral cancer through endoplasmic reticulum stress显示文摘C18 ceramide plays an important role in the occurrence and development of oral squamous cell carcinoma.However,the function of ceramide synthase 1,a key enzyme in C18 ceramide synthesis,in oral squamous cell carcinoma is still unclear.The aim of our study was to investigate the relationship between ceramide synthase 1 and oral cancer.In this study,we found that the expression of ceramide synthase 1 was downregulated in oral cancer tissues and cell lines.In a mouse oral squamous cell carcinoma model induced by 4-nitroquinolin-1-oxide,ceramide synthase 1 knockout was associated with the severity of oral malignant transformation.Immunohistochemical studies showed significant upregulation of PCNA,MMP2,MMP9,and BCL2 expression and downregulation of BAX expression in the pathological hyperplastic area.In addition,ceramide synthase 1 knockdown promoted cell proliferation,migration,and invasion in vitro.Overexpression of CERS1 obtained the opposite effect.Ceramide synthase 1 knockdown caused endoplasmic reticulum stress and induced the VEGFA upregulation.Activating transcription factor 4 is responsible for ceramide synthase 1 knockdown caused VEGFA transcriptional upregulation.In addition,mild endoplasmic reticulum stress caused by ceramide synthase 1 knockdown could induce cisplatin resistance.Taken together,our study suggests that ceramide synthase 1 is downregulated in oral cancer and promotes the aggressiveness of oral squamous cell carcinoma and chemotherapeutic drug resistance. | Wen Chen Chenzhou Wu Yafei Chen Yuhao Guo Ling Qiu Zhe Liu Haibin Sun Siyu Chen Zijian An Zhuoyuan Zhang Yi Li Longjiang Li | 2021 | International Journal of Oral Science2021,13,1: | 3 |
| 15 | The Existence of a Class of Balanced Multi-output Rotation Symmetric Boolean Functions显示文摘A new characterization of balanced rotation symmetric(n, m)-functions is presented. Based on the characterization, the nonexistence of balanced rotation symmetric(p^r, m)-functions is determined, where p is an odd prime and m ≥ 2. And there exist balanced rotation symmetric(2~r, m)-functions for 2 ≤ m ≤ 2~r-r. With the help of these results, we also prove that there exist rotation symmetric resilient(2~r, m)-functions for 2 ≤ m ≤ 2~r-r-1. | DU Jiao FU Shaojing QU Longjiang LI Chao PANG Shanqi | 2018 | Chinese Journal of Electronics2018,27,5: | 2 |
| 16 | Elimination of a Retrotransposon for Quenching Genome Instability in Modern Rice显示文摘Transposable elements(TEs)constitute the most abundant portions of plant genomes and can dramatically shape host genomes during plant evolution.They also play important roles in crop domestication.However,whether TEs themselves are also selected during crop domestication has remained unknown.Here,we identify an active long terminal repeat(LTR)retrotransposon,HUO,as a potential target of selection during rice domestication and breeding.HUO is a low-copy-number LTR retrotransposon,and is active under natural growth conditions and transmitted through male gametogenesis,preferentially inserting into genomic regions capable of transcription.HUO exists in all wild rice accessions and about half of the archaeological rice grains(1200–7000 years ago)and landraces surveyed,but is absent in almost all modern varieties,indicating its gradual elimination during rice domestication and breeding.Further analyses showed that HUO is subjected to strict gene silencing through the RNA-directed DNA methylation pathway.Our results also suggest that multiple HUO copies may trigger genomic instability through altering genome-wide DNA methylation and small RNA biogenesis and changing global gene expression,resulting in decreased disease resistance and yield,coinciding with its elimination during rice breeding.Together,our study suggests that negative selection of an active retrotransposon might be important for genome stability during crop domestication and breeding. | Yu Peng Yingying Zhang Yijie Gui Dong An Junzhong Liu Xun Xu Qun Li Junmin Wang Wen Wang Chunhai Shi Longjiang Fan Baorong Lu Yiwen Deng Sheng Teng Zuhua He | 2019 | Molecular Plant2019,12,10: | 2 |
| 17 | New constructions of q-variable 1-resilient rotation symmetric functions over F_p显示文摘Dear editor,Motivated by Refs.[1–10],we devote to constructing a class of q-variable 1-resilient rotation symmetric functions(RSFs)over the finite field F_p={0,1,...,p-1}in this letter.Throughout this letter,let p and q be different odd prime numbers. | Jiao DU Shaojing FU Longjiang QU Chao LI Shanqi PANG | 2016 | Science China(Information Sciences)2016,59,7: | 2 |
| 18 | REDUCING THE PEAK-TO-AVERAGE POWER RATIO OF OFDM SYSTEM WITH LOW COMPLEXITY显示文摘This paper proposes a companding scheme, where small signals are enlarged and large signals are reduced, to reduce the Peak-to-Average Power Ratio(PAPR). Computer simulation results show that the proposed technique has two advantages at least when compared with the conventional methods such as partial transmit sequence, selective mapping and the previous companding. First, it gets better PAPR performances with a lower complexity. Second, the scheme achieves greater performances gain with hardly any damnification of OFDM signals in some degree. | Luo Renze Jing Longjiang Luo Lang Li Jie Zhu Weile | 2006 | Journal of Electronics(China)2006,23,1: | 2 |
| 19 | Construction of even-variable rotation symmetric Boolean functions with maximum algebraic immunity显示文摘Rotation symmetric Boolean functions(RSBFs) have been used as components of different cryptosystems.In this paper,we investigate n-variable(n even and n≥12) RSBFs to achieve maximum algebraic immunity(AI),and provide a construction of RSBFs with maximum AI and nonlinearity.These functions have higher nonlinearity than the previously known nonlinearity of RSBFs with maximum AI.We also prove that our construction provides high algebraic degree in some case. | FU ShaoJing LI Chao MATSUURA Kanta QU LongJiang | 2013 | Science China(Information Sciences)2013,56,3: | 2 |
| 20 | A study of the activity and ecological significance of carbonic anhydrase from soil and its microbes from different karst ecosystems of Southwest China 显示文摘 | Li Wei Yu Longjiang Yuan Daoxian | 2005 | Plant and Soil2005,272,12: | 1 |