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| 1 | Preparation of SiC Porous Ceramics by Crystalline Silicon Cutting Waste显示文摘SiC porous ceramics were prepared at 1 400 ℃ for4 h with crystalline silicon cutting waste and activated carbon as main starting materials and NH_4HCO_3 as the pore-forming agent. Effects of NH_4HCO_3 additions( 0,20%,30%,40%,by mass) on the phase composition,microstructure,sintering properties,cold compressive strength and thermal shock resistance of as-prepared Si C porous ceramics were investigated. The results show that:( 1) addition of NH_4HCO_3 remarkably influences the apparent porosity and cold compressive strength of specimens. The apparent porosity achieves its maximum value( 63. 40%) when 40% NH_4HCO_3 is added,while the minimum cold compressive strength is 4. 77 MPa;( 2) the specimen with 40% NH_4HCO_3 has the best thermal shock resistance. The thermal cycling times between1 000 ℃ to room temperature reach 62;( 3) the addition of NH_4HCO_3 does not remarkably affect the phase composition of the specimens;( 4) the specimens include a large number of SiC particles and a small amount of SiC whiskers. | ZHANG Yaran MA Beiyue YU Jingyu SU Chang REN Xinming QIAN Fan LIU Guoqi LI Hongxia YU Jingkun | 2018 | China's Refractories2018，27，4： | 3 |
| 2 | The Characteristics and Genesis of the Massive Nitrate Deposits in the Turpan-Hami Basin of Xinjiang,China显示文摘Massive nitrate deposits have been discovered in the Turpan-Hami basin in northwestern China.Previously,large ore grade nitrate minerals were thought only to exist in the Atacama Desert in northern Chile.Estimates of | GE Wensheng Greg MICHALSKI CAI Keqin WANG Fan LIU Yaran | 2014 | Acta Geologica Sinica(English Edition)2014，88，S1： | 2 |
| 3 | DNA methylation and alternative splicing modulate FBXW11 gene expression in Holstein bull testis and are correlated with sperm quality显示文摘F-box and WD-40 domain protein 11(FBXW11)is an important component of the E3 ubiquitin-ligase enzyme that plays a key role in the ubiquitin-dependent regulation of spermatogenesis.In our previous research,the mRNA expression of FBXW11 in bull sperm with high motility is significantly higher than that with low motility.In the present study,the protein expression levels of FBXW11 in bull testicular tissues with low-performance sperm quality groups were significantly higher than those in normal performance groups.The immunohistochemistry result demonstrated that FBXW11 protein was located in the periphery of Leydig cells and seminiferous tubules.Three splice variants of the FBXW11 gene,namely,FBXW11-tv1,FBXW11-tv2,and FBXW11-tv3,were identified in testicular tissues.The splicing patterns of the three variants are exon skipping.The transcript FBXW11-tv2 expressions were the highest in each sample.The low-performance groups displayed higher FBXW11-tv1 and FBXW11-tv2 transcript expressions than the normal performance groups.Two CpG islands were located within the 5’UTR and exon 1-2 region of the FBXW11 gene.Bisulfite sequencing PCR results demonstrated that the methylation levels of 11 methylation sites in the CpG island 2 from−99 to−43 in the normal performance groups were significantly lower than those in the low-performance groups.Pearson correlation analysis suggested that the CpG island 2 methylation level was negatively correlated with sperm motility and the transcript FBXW11-tv2 expression level.Our data revealed that alternative splicing and DNA methylation jointly regulated FBXW11 gene expression and were correlated with sperm quality traits during spermatogenesis in Holsteins. | YONG LIU ZHIHUA JU QIANG JIANG WENHAO LIU CHUNHONG YANG YARAN ZHANG XIUGE WANG YAPING GAO XIAOCHAO WEI YAN SUN JINPENG WANG MINGHAI HOU LING YANG JINMING HUANG | 2021 | BIOCELL2021，45，1： | 1 |
| 4 | Microstructures and tribological properties of plasma sprayed WC–Co–Cu–BaF 2 /CaF 2 self-lubricating wear resistant coatings显示文摘 | Jianhui Yuan Yingchun Zhu Heng Ji Xuebing Zheng Qichao Ruan Yaran Niu Ziwei Liu Yi Zeng | 2010 | Applied Surface Science2010，，16： | 1 |
| 5 | Research on the logic monitoring method for the cloud computing based safety computer显示文摘With the development of railway construction in China,the computing demand of the train control system is increasing day by day.The application of cloud computing technology on the rail transit signal system has become a research hotspot in recent years.How to improve the safety and availability of the safety computer platform in the cloud computing environment is the key problem when applying cloud computing to the train operation control system.Since the cloud platform is in an open network environment,fac-ing many security vulnerabilities and malicious network attacks,it is necessary to monitor the operation of computer programmes through edge safety nodes.Firstly,this paper encrypts the logical monitoring method,and then proposes a secure computer de fence model based on the dynamic heterogeneous redundancy structure.Then the continuous time Markov chain(CTMC)is used to quantitatively solve the stable probability of the system,and the influence of different logical monitoring methods on the anti-attack performance of the system is analysed.Finally,the experiment proves that the dynamic heterogeneous redundancy structure composed of encryption logic monitoring can guarantee the safe and stable operation of the safety computer more effectively. | Yaran Yang Lianchuan Ma Tao Tang Huan Ding Zhen Liu | 2023 | Transportation Safety and Environment2023，5，2： | 1 |
| 6 | Microstructure and Properties Characterization of Silicon Coatings Prepared by Vacuum Plasma Spraying Technology显示文摘 | Yaran Niu Xuanyong Liu Xuebin Zheng Heng Ji Chuanxian Ding | 2009 | Journal of Thermal Spray Technology2009，，3： | 1 |
| 7 | Dynamic covalent nano-networks comprising antibiotics and polyphenols orchestrate bacterial drug resistance reversal and inflammation alleviation显示文摘New antimicrobial strategies are urgently needed to meet the challenges posed by the emergence of drug-resistant bacteria and bacterial biofilms.This work reports the facile synthesis of antimicrobial dynamic covalent nano-networks(aDCNs)composing antibiotics bearing multiple primary amines,polyphenols,and a cross-linker acylphenylboronic acid.Mechanistically,the iminoboronate bond drives the formation of aDCNs,facilitates their stability,and renders them highly responsive to stimuli,such as low pH and high H2O2 levels.Besides,the representative A1B1C1 networks,composed of polymyxin B1(A1),2-formylphenylboronic acid(B1),and quercetin(C1),inhibit biofilm formation of drug-resistant Escherichia coli,eliminate the mature biofilms,alleviate macrophage inflammation,and minimize the side effects of free polymyxins.Excellent bacterial eradication and inflammation amelioration efficiency of A1B1C1 networks are also observed in a peritoneal infection model.The facile synthesis,excellent antimicrobial performance,and biocompatibility of these aDCNs potentiate them as a much-needed alternative in current antimicrobial pipelines. | Yuanfeng Li Yin-Zi Piao Hua Chen Keqing Shi Juqin Dai Siran Wang Tieli Zhou Anh-Tuan Le Yaran Wang Fan Wu Rujiang Ma Linqi Shi Yong Liu | 2023 | Bioactive Materials2023，，9： | 0 |
| 8 | Adaptive Bird-like Genome Miniaturization During the Evolution of Scallop Swimming Lifestyle显示文摘Genome miniaturization drives key evolutionary innovations of adaptive traits in vertebrates,such as the flight evolution of birds.However,whether similar evolutionary processes exist in invertebrates remains poorly understood.Derived from the second-largest animal phylum,scallops are a special group of bivalve molluscs and acquire the evolutionary novelty of the swimming lifestyle,providing excellent models for investigating the coordinated genome and lifestyle evolution.Here,we show for the first time that genome sizes of scallops exhibit a generally negative correlation with locomotion activity.To elucidate the co-evolution of genome size and swimming lifestyle,we focus on the Asian moon scallop(Amusium pleuronectes)that possesses the smallest known scallop genome while being among scallops with the highest swimming activity.Whole-genome sequencing of A.pleuronectes reveals highly conserved chromosomal macrosynteny and microsynteny,suggestive of a highly contracted but not degenerated genome.Genome reduction of A.pleuronectes is facilitated by significant inactivation of transposable elements,leading to reduced gene length,elevated expression of genes involved in energy-producing pathways,and decreased copy numbers and expression levels of biomineralization-related genes.Similar evolutionary changes of relevant pathways are also observed for bird genome reduction with flight evolution.The striking mimicry of genome miniaturization underlying the evolution of bird flight and scallop swimming unveils the potentially common,pivotal role of genome size fluctuation in the evolution of novel lifestyles in the animal kingdom. | Yuli Li Yaran Liu Hongwei Yu Fuyun Liu Wentao Han Qifan Zeng Yuehuan Zhang Lingling Zhang Jingjie Hu Zhenmin Bao Shi Wang | 2022 | Genomics, Proteomics & Bioinformatics2022，20，6： | 0 |
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