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| 1 | Synthesis of New Substituted 4-Amino-3,5-dinitropyridine Derivatives显示文摘为一些新 4-amino-3,5-dinitropyridine 衍生物的准备的灵巧的合成线路被揭示了。2-chloropyridin-4-amine (1 ) 的硝代作为开始的材料在意外一步舞反应,给 dinitrated 衍生物,由分别地,有钠叠氮化物,钾氟化物,氨,甲胺,和 4-nitroimidazol 的反应给了代替的 4-amino-3,5-dinitropyridine 衍生物的亲核的替换列在后面。同时,它的叠氮化物衍生物经历了戒指闭合变换进 7-amino-6-nitro-[1,2,5 ] oxadiazolo [3,4-b ] pyridine-1-oxide。是意义所有在温和条件下面亲核的替换反应被执行。 | Congming Ma Yongbin Wang Kehui Hou Zuliang Liu Qizheng Yao | 2013 | Chinese Journal of Chemistry2013,31,10: | 4 |
| 2 | Epidemics,Convergence,and Common Prosperity:Evidence from China显示文摘This article investigates the impact of previous epidemics on rural development and convergence,and identifies the impacts mechanism based on convergence tests.Using a balanced panel of 31 provinces,the empirical results from 2002 to 2019 show that epidemics decelerated convergence in rural per capita income.The mechanism analysis shows that the accelerated divergence in wages and the decelerated convergence in business income were the major drivers,which also led to decelerated convergence in rural per capita consumption.Although epidemics have not threatened rural food consumption and the Engel coefficient of rural households,these two indicators of basic living needs have failed to achieve convergence across regions.The overall impact of an epidemic on convergence in rural-urban income disparity has also been insignificant,indicating that epidemics have affected rural and urban development simultaneously.Finally,COVID-19 is likely to decelerate convergence in rural income,rural consumption,and urban income. | Zesen Qian Lingran Yuan Shuo Wang Qizheng Zhang Binlei Gong | 2021 | China & World Economy2021,29,6: | 2 |
| 3 | 显示文摘 | Dong Xiangting Wang Jinxian Cui Qizheng | 2009 | Mod Ap- pl Sei2009,3,1: | 1 |
| 4 | Research on Position Analysis of a Kind of Nine-Link Barranov Truss显示文摘 | Pin WANG Qizheng LIAO Yufeng ZHUANG | 2008 | Journal of Mechanical Design ASME2008,130,1: | 1 |
| 5 | Cognition in Chinese children with benign childhood epilepsy with centrotemporal spikes (BCECTS)显示文摘 | Xinjie Liu Xiaoli Zhang Qizheng Han Jing Guo Chunting Wang | 2011 | Neuroscience Letters2011,,1: | 1 |
| 6 | Correlation and Path Coefficient and Chi-square Distance Cluster Analysis for Several Characteristics in Tobacco Germplasm Resource显示文摘Correlation and path coefficient analyses were conducted for 10 characteristics of 24 pure lines of flue-cured tobacco such as plant height, knot distance, leaf number, the central leaf length and width, ratio of the length to width, stem girth, dates of budding, leaf yield and ratio of the prime-medium tobacco. The leaf number and the central leaf length showed a positive or a strong positive correlation with the yield per plant. And the leaf number and leaf yield per plant showed a strong positive correlation with the ratio of prime-medium tobacco. The results showed that the leaf yield per plant among these characteristics played a major role in determining the ratio of prime-medium tobacco while the others were less related with the ratio. Square sum of deviation method cluster analyses showed that 24 pure lines of flue-cured tobacco were clustered into two groups. Of the pure lines, Line TI706 and Line TI245 had a far relationship with all other lines, and also had a heterosis when crossed with the other lines. Lines Guangdonghuang1 and R72(3)B-2-1 were closely related. | LI Wenping ZHU Lieshu ZHAO Songyi LIANG Qizheng WANG Yuchao TAN Xi | 2010 | Journal of Northeast Agricultural University(English Edition)2010,17,1: | 1 |
| 7 | Direct fabrication of cerium oxide hollow nanofibers by electrospinning 显示文摘 | Cui Qizheng Dong Xiangting Wang Jinxian | 2008 | J Rare Earth2008,26,5: | 1 |
| 8 | Preparation and characterization of polycrystalline La2 Zr2 O7 ultrafine fibres via electrospinning显示文摘 | Wang Jinxian Dong Xiangting Cui Qizheng | 2011 | J Nanosci Nanotechnol2011,11,3: | 1 |
| 9 | Direct fabrication of cerium oxide hollow nanofibers by electrospinning显示文摘 | Cui Qizheng Dong Xiangting Wang Jinxian | 2008 | J Rare Earths2008,26,5: | 1 |
| 10 | Role of Ppt1 in multiple stress responses in Candida albicans显示文摘To study the function of CaPpt1,we deleted PPT1 gene from the Candida albicans genome by sequentially replacing the entire coding region with the selectable markers ARG4 and HIS1.The results showed that the deletion of Ppt1 did not affect the hyphal formation of C.albicans under serum induction and caused enhanced sensitivity to DNA damage,Calcofluor white and saltinduced stress.We also found that Ppt1 was not required for the phenotypic response of cells treated with the genotoxins,methylmethane sulfonate and hydroxyurea.Flow cytometric analyses indicated that ppt1D cells and wild-type cells showed similar G2/M arrest profiles when exposed to DNA damage stress.Ppt1 was not required for the activation of the DNA damage response pathway,as indicated by normal phosphorylation of Rad53 and Rfa2 in ppt1D cells under DNA damage stress.We suggest that Ppt1 plays important roles in response to various stress conditions in C.albicans. | Kangdi Hu Wanjie Li Jiaxin Gao Qizheng Liu Haitao Wang Yue Wang Jianli Sang | 2014 | Chinese Science Bulletin2014,59,31: | 1 |
| 11 | A method for position analysis of a kind of nine-link Barranov truss 显示文摘 | Pin Wang Qizheng Liao Yufeng Zhuang | 2007 | Mechanism and Machine Theory2007,42,10: | 1 |
| 12 | Effects of Macroparticle Sizes on Two-phase Mixture Discharge Under DC Voltage显示文摘随着放电等离子体在各个领域应用的不断扩大,两相体放电问题越来越重要,需要解决的基础问题之一即是两相体中放电发生、发展的特点和规律及影响因素。采用21种不同的介质材料研究直流电压下两相体放电的效应,由实验结果可知介质的介电常数对放电路径基本无影响,而介质颗粒的粒径大小对两相体放电路径的选择起决定作用,即粒径效应。此外,对颗粒介电常数、电场畸变、光电离作用和颗粒荷电等几个方面进行研究,可知两相体放电的粒径效应与颗粒粒径大小紧密相关。 | YAO Wenjun HE Zhenghao DENG Heming WANG Guoli ZHANG Man MA Jun LI Jin YE Qizheng HU Hui | 2012 | 中国电机工程学报2012,32,13: | 1 |
| 13 | High-throughput“read-on-ski”automated imaging and label-free detection system for toxicity screening of compounds using personalised human kidney organoids显示文摘Organoid models are used to study kidney physiology,such as the assessment of nephrotoxicity and underlying disease processes.Personalized human pluripotent stem cell-derived kidney organoids are ideal models for compound toxicity studies,but there is a need to accelerate basic and translational research in the field.Here,we developed an automated continuous imaging setup with the“read-on-ski”law of control to maximize temporal resolution with minimum culture plate vibration.High-accuracy performance was achieved:organoid screening and imaging were performed at a spatial resolution of 1.1µm for the entire multi-well plate under 3 min.We used the in-house developed multi-well spinning device and cisplatin-induced nephrotoxicity model to evaluate the toxicity in kidney organoids using this system.The acquired images were processed via machine learning-based classification and segmentation algorithms,and the toxicity in kidney organoids was determined with 95%accuracy.The results obtained by the automated“read-on-ski”imaging device,combined with label-free and non-invasive algorithms for detection,were verified using conventional biological procedures.Taking advantage of the close-to-in vivo-kidney organoid model,this new development opens the door for further application of scaled-up screening using organoids in basic research and drug discovery. | Qizheng WANG Jun LU Ke FAN Yiwei XU Yucui XIONG Zhiyong SUN Man ZHAI Zhizhong ZHANG Sheng ZHANG Yan SONG Jianzhong LUO Mingliang YOU Meijin GUO Xiao ZHANG | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022,23,7: | 0 |
| 14 | A depressant for marmatite flotation:Synthesis,characterisation and floatation performance显示文摘This study synthesised a zincic salt(ZS)as a depressant for marmatite-galena separation.The effect of ZS on the flotation of marmatite and galena was investigated through micro-flotation tests.88.89%of the galena was recovered and 83.39%of the marmatite was depressed with ZS dosage of 750 mg·L^(−1)at pH=4.The depression mechanism of ZS on marmatite was investigated by a variety of techniques,including adsorption measurements,Fourier transform infrared(FTIR),X-ray photoelectron spectroscopic(XPS)analysis,and time of flight secondary ion mass spectrometry(ToF-SIMS).Results of adsorption tests and FTIR reveal that ZS adsorbed on marmatite surface and impeded the subsequent adsorption of butyl xanthate(BX).The results of XPS and ToF-SIMS indicate that the ZnO_(2)^(3-)released by ZS could be chemisorbed on the marmatite surface and depress marmatite flotation. | Tichen Wang Guiju Sun Jiushuai Deng Hongxiang Xu Guoyong Wang Mingzhen Hu Qizheng Qin Xiaohao Sun | 2023 | International Journal of Minerals,Metallurgy and Materials2023,30,6: | 0 |
| 15 | A Sharding Scheme Based on Graph Partitioning Algorithm for Public Blockchain显示文摘Blockchain technology,with its attributes of decentralization,immutability,and traceability,has emerged as a powerful catalyst for enhancing traditional industries in terms of optimizing business processes.However,transaction performance and scalability has become the main challenges hindering the widespread adoption of blockchain.Due to its inability to meet the demands of high-frequency trading,blockchain cannot be adopted in many scenarios.To improve the transaction capacity,researchers have proposed some on-chain scaling technologies,including lightning networks,directed acyclic graph technology,state channels,and shardingmechanisms,inwhich sharding emerges as a potential scaling technology.Nevertheless,excessive cross-shard transactions and uneven shard workloads prevent the sharding mechanism from achieving the expected aim.This paper proposes a graphbased sharding scheme for public blockchain to efficiently balance the transaction distribution.Bymitigating crossshard transactions and evening-out workloads among shards,the scheme reduces transaction confirmation latency and enhances the transaction capacity of the blockchain.Therefore,the scheme can achieve a high-frequency transaction as well as a better blockchain scalability.Experiments results show that the scheme effectively reduces the cross-shard transaction ratio to a range of 35%-56%and significantly decreases the transaction confirmation latency to 6 s in a blockchain with no more than 25 shards. | Shujiang Xu Ziye Wang Lianhai Wang Miodrag J.Mihaljevi′c Shuhui Zhang Wei Shao Qizheng Wang | 2024 | Computer Modeling in Engineering & Sciences2024,139,6: | 0 |
| 16 | A new strategy for high-throughput identification of human gut microbiota containing specific monosaccharide显示文摘Dear Editor,The human gastrointestinal tract is colonized by trillions of microorganisms,the majority of which cannot be cultured (Wu et al.,2018).Numerous glycans are expressed on the surface of gut microbiota that are characteristic of different strains,and the diversity of these glycans is partially attributed to variations in their monosaccharides. | Qizheng Wu Fang Liu Yu Song Qingyun Meng Xunlian Zhang Huizi Li Jingyu Sun Hongqi Gao Peng George Wang Yun Kong Min Chen | 2019 | Science China(Life Sciences)2019,62,7: | 0 |
| 17 | Gut microbiota have blood types as human显示文摘ABO blood group system was firstly recognized by Landsteiner in 1900[1].Since then,the antigens of the ABO system (A,B and H determinants,respectively)have been shown to encompass complex carbohydrate structures [2].A and B antigen were synthesized by the sequential action of glycosyltransferases,with A and B glycosyltransferases catalyzing the addition of N-acetylgalactosamine and D-galactose to precursor H antigen,respectively. Group O individuals lack such transferase enzymes and consequently continue to express the basic H structure only [3,4].It is determined that approximate 2million ABH glycan antigen sites are presented on each red blood cell [5].Additionally,the ABH antigens are widely expressed in other human ceils and tissues,including the sensory neurons,epithelium,the vascular endothelium and platelets [6]. | Qizheng Wu Hui Zhong Yafei Zhai Yanjiong Jia Zhinan Yin Min Chen Hengwen Yang Peng George Wang | 2018 | Science Bulletin2018,63,20: | 0 |
| 18 | Synthesis Study toward Mayamycin显示文摘自然产品 mayamycin 是在在 benz 的 C5 位置展示一个 C-glycoside 连接的 angucycline 班上的第一个例子[一] 有显著生物活动的 anthracenone 核心。我们成功地综合了二 retrosynthetic 碎片,但是发现最后的 C-glycosylation 没发生。或者, A-ring 浸透了 aglycon 被准备,但是建议 C-glycosylation 仍然没继续。最后,简化底层被使用,随后的 C-glycosylation 顺利通过了,给 mayamycin 的二戒指的更少类似物。 | Kui Wu Meining Wang Qizheng Yao Ao Zhang | 2013 | Chinese Journal of Chemistry2013,31,1: | 0 |
| 19 | Passivated ZnSe nanocrystals prepared by hydrothermal methods and their optical properties显示文摘Homogeneous Zn Se nanocrystals were prepared via surfactant-assisted hydrothermal method.Surfactants agent CTAB was used to control the particle morphology and the growth rate.The structure,morphology and optical properties of Zn Se nanocrystals have been investigated by XRD,TEM and luminescence spectroscopy.The results indicated that the size of Zn Se nanocrystals ranged from 3.0 nm to 5.0 nm with cubic zinc blende structure.Zn Se nanocrystals coated by CTAB were revealed high dispersibility and distribution under TEM.Compared to the bulk Zn Se,the absorption edges and photoluminescence peaks of Zn Se nanocrystals were blue shifted to higher energies due to the quantum confinement effect.The emission intensity was strengthened after coated CTAB compared to bare sample.This was mainly due to the surface passivation.Meanwhile,we simply explored the formation mechanism of Zn Se nanocrystal in hydrothermal system. | Lingling Peng Yuhua Wang Qizheng Dong Zhaofeng Wang | 2010 | Nano-Micro Letters2010,2,3: | 0 |