检索结果-南通市图书馆

High-Throughput MicroRNA and mRNA Sequencing Reveals that MicroRNAs May Be Involved in Pectinesterase-Mediated Cold Resistance in Potato

在线全文

学校读者我要写书评

暂无评论

Phyton-International Journal of Experimental Botany 2020年第3期89卷 561-586页

作者： Chongchong Yan Qianqian Wang Nan Zhang Jiajia Wang xuexiang Ren bingjie xue Xiaojing Pu Zhihong xu Huajun Liao Anhui Academy of Agricultural Sciences Hefei230031China Anhui Vocational College of City Management Hefei231635China Funan County Agricultural Technology Promotion Center Funan236300China Jieshou County Agricultural Technology Promotion Center Jieshou236500China

Since potato cultivars are sensitive to low temperature,cold injury severely affects the geographical distribution and yield of *** some miRNAs have been identified in response to cold stress in plants,there is no report about the role of miRNAs in the response to cold stress in ***,via high throughput sequencing,we described the profiling of cold stress response to miRNA and mRNA in *** small RNA and six mRNA libraries were constructed and sequenced.296 known and 211 novel miRNAs were identified,in which 34 miRNAs in Cold Group(CG)had the higher expression quantity than which in Normal Group(NG)and 32 in CG had lower expression quantity than which in NG.3068 differentially expressed genes were detected between NG and CG,in which 1400 genes were up-regulated and 1668 genes were *** metabolism pathway of starch and sucrose(ko00500)is the common KEGG pathway in differentially expressed miRNA and *** this pathway,StuPME21575 and StuPME42971 are pectinesterase which mainly catalyzes the pectin-forming pectate,which are controlled by stu-miR6023 and *** the potato suffering cold stress,these two miRNAs expression levels became higher,but their target genes expression levels were just opposite and this result is the same with qRT-PCR.

关键词： Potato microRNA RNA-Seq low-temperature stress pectinesterase

Effect of Hydrothermal Treatment on Suppressing Coking of ZSM-5 Zeolite during Methanol-to-Propylene Reaction

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Petroleum Processing & Petrochemical Technology 2016年第2期18卷 7-13页

作者： Jiang Binbo Zhou bingjie Yan Lixia Wei Lingze xu Caixia Liao Zuwei Huang Zhengliang Wang Jingdai Yang Yongrong State Key Laboratory of Chemical Engineering Department of Chemical and Biochemical EngineeringZhejiang University

Fresh ZSM-5 zeolite catalysts were pretreated at 460 ℃and 500 ℃with various cumulative amount of water feed(CAWF) in a fixed bed reactor. The catalytic process was carried out under the following conditions: a temperature of 480 ℃; a methanol WHSV of 3 h-1; a methanol partial pressure of 30 k Pa; and a time on stream of 12 h, 24 h and 48 h, respectively. The BET parameters of catalysts and diffusion coefficients of toluene showed that there were two types of mesopores generated under different hydrothermal conditions. Mild temperature and moderate CAWF conditions led to external open mesopores which could be entered from the external surface of the zeolite, while a high temperature or a high CAWF condition resulted in the generation of macropores or internal isolated mesopores, which were occluded in the microporous matrix. The TGA results showed that catalyst with external open mesopores had good ability to resist coke accumulation and good performance on propylene selectivity, while the internal isolated mesopores did no contribute to the increased diffusivity of reactants and products.

关键词： methanol to propylene (MTP) hydrothermal treatment ZSM-5 coking mesopores diffusion

SARS-CoV-2 infection in animals: Patterns, transmission routes, and drivers

在线全文

学校读者我要写书评

暂无评论

Eco-Environment & Health 2024年第1期3卷 45-54页

作者： Ruying Fang Xin Yang Yiyang Guo bingjie Peng Ruixuan Dong Sen Li Shunqing xu School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China School of Life Sciences Hainan UniversityHaikou 570228China

The severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is more widespread in animals than previously thought,and it may be able to infect a wider range of domestic and wild *** effectively control the spread of the virus and protect animal health,it is crucial to understand the cross-species transmission mechanisms and risk factors of *** article collects published literature on SARS-CoV-2 in animals and examines the distribution,transmission routes,biophysical,and anthropogenic drivers of infected *** reported cases of infection in animals are mainly concentrated in South America,North America,and Europe,and species affected include lions,white-tailed deer,pangolins,minks,and *** factors influencing infection of animals with SARS-CoV-2 include environmental determinants,high-risk landscapes,air quality,and susceptibility of different animal species,while anthropogenic factors comprise human behavior,intensive livestock farming,animal markets,and land *** to current research gaps and surveillance capacity shortcomings,future mitigation strategies need to be designed from a One Health perspective,with research focused on key regions with significant data gaps in Asia and Africa to understand the drivers,pathways,and spatiotemporal dynamics of interspecies transmission.

关键词： SARS-CoV-2 Biophysical factors Anthropogenic factors Transmission Cross-species

Optical spectroscopy study of Ca_3(Ru_(0.91)Mn_(0.09))_2O_7 single crystal in high magnetic fields

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science Bulletin 2019年第1期64卷 20-25页

作者： xueli xu Jin Peng Junpei Zhang Zongwei Ma Cheng Chen Junbo Han bingjie Liu Lingfang Lin Xiaoshan Wu Zhiqiang Mao Zhe Qu Zhigao Sheng Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory Chinese Academy of Sciences University of Science and Technology of China Collaborative Innovation Center of Advanced Microstructures Nanjing University School of Physics Southeast University Wuhan National High Magnetic Field Center Huazhong University of Science and Technology School of Physics Nanjing University Department of Physics and Engineering Physics Tulane University

The magneto-optical spectrum, with magnetic fields up to 42 T, of double layered ruthenates Ca_3(Ru_(0.91)Mn_(0.09))_2O_7(CRMO) single crystal is studied. Both the temperature and magnetic field induced insulator-to-metal transitions(IMTs) are observed via magneto-optical properties of the crystal. The critical magnetic field(H//c) of IMT for CRMO is found to be as large as 35 T at 5 K. The fine structure of optical spectra identified the antiferromagnetic/ferro-orbital-ordering configurations of Ru 4d orbitals at low temperatures. Meanwhile, the configuration of orbital polarization of such double-layer CRMO single crystal is discussed. These results suggest that the orbital degree of freedom plays an important role in the field induced IMT of multi-orbital system.

关键词： Ruthenates High magnetic field Optical spectroscopy Insulator to metal transition

A microscopic ancient river channel identification method based on maximum entropy principle and Wigner-Ville Distribution and its application

在线全文

学校读者我要写书评

暂无评论

Petroleum Exploration and Development 2021年第6期48卷 1354-1366页

作者： xu Tianji CHENG bingjie NIU Shuangchen QIN Zhengye WANG Zhenzhen School of Resources and Environment University of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region Institute of University of Electronic Science and Technology of China Huzhou 313000China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu 610059China College of Geophysics Chengdu University of TechnologyChengdu 610059China Sichuan Zhongcheng Institute of Coalfield Geophysical Engineering Chengdu 610072China.

In view of the problem of fine characterization of narrow and thin channels,the maximum entropy criterion is used to enhance the focusing characteristics of Wigner-Ville *** the basis of effectively improving the time-frequency resolution of seismic signal,a new method of microscopic ancient river channel identification is *** on the principle of the equivalence between the maximum entropy power spectrum and the AR model power spectrum,the prediction error and the autoregression coefficient of AR model are obtained using the Burg algorithm and Levinson-Durbin recurrence *** the condition of the first derivative of autocorrelation function being 0,the Wigner-Ville Distribution of seismic signal is calculated,and the Wigner-Ville Distribution time-frequency power spectrum(MEWVD)is obtained under the maxi-mum entropy criterion of the microscopic ancient river *** analysis of emulational seismic signal and forward numerical simulation signal of narrow thin model,it is found that MEWVD can effectively avoid the interference of cross term of Wigner-Ville Distribution,and obtain more accurate spectral characteristics than STFT and CWT signal analysis *** is also proved that the narrow and thin river channels of different scales can be identified effectively by MEWVD of different *** method is applied to the third member of Jurassic Shaximiao Formation(J2s33-2)gas reservoir of the Zhongji-ang gas field in Sichuan *** spatial information of width and direction of narrow and thin river channels with width less than 500 m and sandstone thickness less than 35 m is accurately identified,providing bases for well deployment and horizontal well fracturing section selection.

关键词： maximum entropy principle Wigner-Ville Distribution spectral focusing high resolution seismic fluvial facies narrow and thin ancient channel

激素配比对甘薯组织培养及试管苗移栽后生长的影响

在线全文

学校读者我要写书评

暂无评论

中国农学通报 2024年第10期40卷 12-16页

作者：刘克星颜仕闻崔栋周龙昊徐冰洁史春余孔祥玉李丛柳洪鹃山东农业大学农学院山东泰安271018

研究植物外源激素6-BA和NAA不同配比对甘薯愈伤分化、继代扩繁、试管苗移栽后生长的影响,建立高效的甘薯茎尖离体脱毒培养和快速繁殖技术体系。以推广应用面积较大的甘薯品种‘烟薯25’、‘普薯32’、‘龙薯9号’和‘商薯19’为试验材料... 详细信息

研究植物外源激素6-BA和NAA不同配比对甘薯愈伤分化、继代扩繁、试管苗移栽后生长的影响,建立高效的甘薯茎尖离体脱毒培养和快速繁殖技术体系。以推广应用面积较大的甘薯品种‘烟薯25’、‘普薯32’、‘龙薯9号’和‘商薯19’为试验材料,在MS培养基中添加6个不同浓度配比的6-BA、NAA,配制愈伤分化培养基和继代扩繁培养基。探讨茎尖组织愈伤率、成苗率、愈伤组织直径、叶片数,同时调查试管苗移栽成活率、叶片数量、株高、基部茎粗等的差异,研究组培苗愈伤分化、继代扩繁和移栽后生长的最佳配方。‘烟薯25’和‘普薯32’的愈伤分化成苗率在A4处理(1.5 mg/L 6-BA+0.2 mg/L NAA)下最高,‘龙薯9号’和‘商薯19’愈伤分化成苗率在A3处理(1.5 mg/L 6-BA+0.1 mg/L NAA)下最高;‘烟薯25’在B4处理(0.5 mg/L 6-BA+0.4 mg/L NAA)下继代扩繁培养长势较好,移栽后成活率高、生长快,‘普薯32’、‘龙薯9号’和‘商薯19’在B3处理(0.5 mg/L 6-BA+0.2 mg/L NAA)下继代扩繁培养长势较好、移栽后成活率最高、生长快。在甘薯茎尖组织愈伤分化、继代扩繁过程中,不同甘薯品种适宜的6-BA、NAA配比存在显著差异,实际生产过程中应充分考虑品种特性。

关键词：甘薯茎尖培养 6-苄氨基嘌呤萘乙酸成苗率扩繁

Effects of lactic acid bacteria fermentation on chemical compounds,antioxidant capacities and hypoglycemic properties of pumpkin juice

在线全文

学校读者我要写书评

暂无评论

Food Bioscience 2022年第6期50卷 1567-1578页

作者： xun Sun Yu Zhang Fei Li xu Jiao Donghui Ma Luyao Zhang bingjie Yang Jing Zhao Junhua Han Quanhong Li College of Food Science and Nutritional Engineering China Agricultural UniversityChina China National Engineering Research Center for Fruit and Vegetable Processing China Key Laboratory of Fruit and Vegetable Processing Ministry of AgricultureBeijing100083China College of Life Science Qingdao UniversityQingdao266071China College of Food Science and Biology Hebei University of Science and TechnologyShijiazhuang050018China

The purpose of this research was to screen strains to ferment pumpkin juice with excellent flavor and biological activities by the comparison of 5 species of lactic acid bacteria(LAB)strains,namely Lacticaseibacillus casei(Lc),Lactiplantibacillus plantarum(Lp),Lactobacillus acidophilus(La),Lactobacillus helveticus(Lh)and Lacticaseibacillus paracasei(Lpc).The pumpkin juice inoculated with LAB was fermented at 37°C for 48 *** cell counts were all above 7.92 log CFU/mL,implicating that pumpkin juice was a favorable matrix for *** contents of reducing sugars and total sugars contents obviously declined at the end of *** strains utilized mainly fructose,surcose and glucose for *** fermented pumpkin juice showed the most abundant organic ***,the strongest DPPH and hydroxyl radical scavenging capacities were observed in Lp,La and Lh,which were positively associated with vanillic acid and sinapic acid *** were 30 new volatile compounds that appeared after fermentation,including 8 of ketones and alcohols,5 esters and so *** highest sensory scores could be found in La and Lh primarily due to their rich volatile *** fermentation was beneficial to inhibitingα-glucosidase andα-amylase *** conclusion,La and Lh were more suitable to develop into a functional beverage with pleasant flavor.

关键词： Pumpkin juice Lactobacillus fermentation Polyphenols Antioxidant capacities Volatile compounds Hypoglycemic properties

Method and practice of deep favorable shale reservoirs prediction based on machine learning

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Exploration and Development 2022年第5期49卷 1056-1068页

作者： CHENG bingjie xu Tianji LUO Shiyi CHEN Tianjie LI Yongsheng TANG Jianming State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu 610059China Key Laboratory of Earth Exploitation and Information Technology of Ministry of Education Chengdu University of TechnologyChengduSichuan 610059China School of Resources and Environment University of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region Institute of University of Electronic Science and Technology of China Huzhou 313000China Southwest Oil and Gas Branch Company SINOPECChengdu 610041China

A set of methods for predicting the favorable reservoir of deep shale gas based on machine learning is proposed through research of parameter correlation feature analysis principle, intelligent prediction method based on convolution neural network(CNN), and integrated fusion characterization method based on kernel principal component analysis(KPCA) nonlinear dimension reduction principle.(1) High-dimensional correlation characteristics of core and logging data are analyzed based on the Pearson correlation coefficient.(2) The nonlinear dimension reduction method of KPCA is used to characterize complex high-dimensional data to efficiently and accurately understand the core and logging response laws to favorable reservoirs.(3) CNN and logging data are used to train and verify the model similar to the underground reservoir.(4) CNN and seismic data are used to intelligently predict favorable reservoir parameters such as organic carbon content, gas content, brittleness and in-situ stress to effectively solve the problem of nonlinear and complex feature extraction in reservoir prediction.(5) KPCA is used to eliminate complex redundant information, mine big data characteristics of favorable reservoirs, and integrate and characterize various parameters to comprehensively evaluate reservoirs. This method has been used to predict the spatial distribution of favorable shale reservoirs in the Ordovician Wufeng Formation to the Silurian Longmaxi Formation of the Weirong shale gas field in the Sichuan Basin, SW China. The predicted results are highly consistent with the actual core, logging and productivity data, proving that this method can provide effective support for the exploration and development of deep shale gas.

关键词： Sichuan Basin Ordovician-Silurian shale gas reservoir prediction machine learning convolution neural network kernel principal component analysis

Analysis of clinical and imaging features of Behcet's disease-related pulmonary lesions:a series of eight cases

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2022年第16期135卷 2011-2013页

作者： bingjie Zhang Yuanhua Yang Tuguang Kuang Zhuozai xu Juanni Gong Beijing Chaoyang Hospital Capital Medical UniversityBejing 100020China Department of Respiratory and Critical Care Medicine Bejing Chaoyang HospialCapital Medical UniversityBejing 10020China Bejing Insttute of Respiratory Medicine Beijing 100020China Department of Ophthalmology Bejing Chaoyang HospitalCapital Medical UniversityBejing 100020China

To the Editor:Behcet's disease is a chronic vascular inflammatory disease that involves multiple systems of the *** the incidence of pulmonary damages is low in Behcet's disease,most of them are *** initial pulmonary damages of Behcet's disease are mainly manifested with mild cough,chest pain,and slight hemoptysis,which are easily misdiagnosed as pulmonary embolism,pneumonia,or other diseases.

关键词： Behcet pulmonary lesions