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Control of the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercaptoof the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercapto-1

Yongli WANG, Shuyuan MA, Xiaodong Lü, Chuang XIE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 423-431 doi: 10.1007/s11705-012-1211-7

Abstract: 5-(Difluoromethoxy)-2-mercapto-1 -benzimidazole (DMB) was precipitated by adding acetic acid to the DMBThe spherical agglomeration of DMB during the reactive crystallization in a batch crystallizer was monitoredBy using a simple model, the mean crystal agglomerate size of DMB thus predicted is generally in agreementIn addition, the crystallization process of DMB was optimized by a new control strategy of supersaturation

Keywords: 5-(difluoromethoxy)-2-mercapto-1H-benzimidazole (DMB)     reactive crystallization     agglomeration    

Design, synthesis, and antiviral properties of 2-aryl-1H-benzimidazole-4-carboxamide derivatives

Xianjin LUO, Zhonglü ZHANG, Yutian YANG, Fei XUE, Naiyun XIU, Yuanbin SHE

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 305-309 doi: 10.1007/s11705-009-0021-z

Abstract: A series of new benzimidazole derivatives were designed and synthesized.Their chemical structures were testified by H NMR, infrared spectroscopy (IR), mass spectrography (MS

Keywords: benzimidazole     coxsackie virus B3     antiviral properties    

Endemicity of H9N2 and H5N1 avian influenza viruses in poultry in China poses a serious threat to poultry

Jiao HU,Xiufan LIU

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 1,   Pages 11-24 doi: 10.15302/J-FASE-2016092

Abstract: The H9N2 and H5N1 avian influenza viruses (AIVs) have been circulating in poultry in China and becomeof influenza viruses, such as the well-known viruses of the highly pathogenic avian influenza (HPAI) H5N2and the 2013 novel H7N7, H7N9 and H10N8 subtypes, thereby threatening both the poultry industry and

Keywords: avian influenza virus     H9N2     H5N1     novel viruses     public health    

Histone variants: critical determinants in tumour heterogeneity

Tao Wang, Florent Chuffart, Ekaterina Bourova-Flin, Jin Wang, Jianqing Mi, Sophie Rousseaux, Saadi Khochbin

Frontiers of Medicine 2019, Volume 13, Issue 3,   Pages 289-297 doi: 10.1007/s11684-018-0667-3

Abstract: Malignant cell transformation could be considered as a series of cell reprogramming events driven by oncogenic transcription factors and upstream signalling pathways. Chromatin plasticity and dynamics are critical determinants in the control of cell reprograming. An increase in chromatin dynamics could therefore constitute an essential step in driving oncogenesis and in generating tumour cell heterogeneity, which is indispensable for the selection of aggressive properties, including the ability of cells to disseminate and acquire resistance to treatments. Histone supply and dosage, as well as histone variants, are the best-known regulators of chromatin dynamics. By facilitating cell reprogramming, histone under-dosage and histone variants should also be crucial in cell transformation and tumour metastasis. Here we summarize and discuss our knowledge of the role of histone supply and histone variants in chromatin dynamics and their ability to enhance oncogenic cell reprogramming and tumour heterogeneity.

Keywords: cancer-testis     TH2B     TH2A     H1T     H1.0     H1F0     linker histones    

Probes and nano-delivery systems targeting NAD(P)H:quinone oxidoreductase 1: a mini-review

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 123-138 doi: 10.1007/s11705-022-2194-7

Abstract: The two-electron cytoplasmic reductase NAD(P)H:quinone oxidoreductase 1 is expressed in many tissues.NAD(P)H:quinone oxidoreductase 1 is well-known for being highly expressed in most cancers.quinone oxidoreductase 1 to diagnose tumours.quinone oxidoreductase 1-activating drug β-lapachone.quinone oxidoreductase 1.

Keywords: NAD(P)H:quinone oxidoreductase 1     cancer therapy     target     probe     nanosystem    

Minimax Q-learning design for H control of linear discrete-time systems Research Articles

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 438-451 doi: 10.1631/FITEE.2000446

Abstract: The method is an effective approach for attenuating the effect of disturbances on practical systems, but it is difficult to obtain the ler due to the nonlinear Hamilton–Jacobi–Isaacs equation, even for linear systems. This study deals with the design of an ler for linear discrete-time systems. To solve the related game algebraic Riccati equation (GARE), a novel model-free method is developed, on the basis of an offline algorithm, which is shown to be Newton’s method for solving the GARE. The proposed method, which employs off-policy , learns the optimal control policies for the controller and the disturbance online, using only the state samples generated by the implemented behavior policies. Different from existing -learning methods, a novel gradient-based policy improvement scheme is proposed. We prove that the method converges to the saddle solution under initially admissible control policies and an appropriate positive learning rate, provided that certain persistence of excitation (PE) conditions are satisfied. In addition, the PE conditions can be easily met by choosing appropriate behavior policies containing certain excitation noises, without causing any excitation noise bias. In the simulation study, we apply the proposed method to design an load-frequency controller for an electrical power system generator that suffers from load disturbance, and the simulation results indicate that the obtained load-frequency controller has good disturbance rejection performance.

Keywords: H∞ control     Zero-sum dynamic game     Reinforcement learning     Adaptive dynamic programming     Minimax Q-learning    

TPE-H2MWD: an exact thumbnail preserving encryption scheme with hidden Markov model and weighted diffusion Research Article

Xiuli CHAI, Xiuhui CHEN, Yakun MA, Fang ZUO, Zhihua GAN, Yushu ZHANG,chaixiuli@henu.edu.cn,2923105987@qq.com,1060734169@qq.com,zuofang@henu.edu.cn,gzh@henu.edu.cn,yushu@nuaa.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 8,   Pages 1169-1180 doi: 10.1631/FITEE.2200498

Abstract: rank-then-encipher method, some researchers have designed a three-pixel exact thumbnail preserving encryption (TPE2)

Keywords: Hidden Markov model     Weighted diffusion     Balance between usability and privacy     Image encryption    

growth of a-few-layered MoS on CdS nanorod for high efficient photocatalytic H production

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 752-759 doi: 10.1007/s11708-021-0779-3

Abstract: An ultrathin MoS2 was grown on CdS nanorod by a solid state method using sulfur powder assulfur source for photocatalytic H2 production.The characterization result reveals that the ultrathin MoS2 nanosheets loaded on CdS has aThe hydrogen evolution rate on m(MoS2): m(CdS) = 1: 50 (m is mass) reaches542 μmol/h, which is 6 times of that on pure CdS (92 μmol/h).

Keywords: photocatalytic H2 production     CdS     MoS2 cocatalyst     charge separation    

MoS2/ZIF-8 Hybrid Materials for Environmental Catalysis: Solar-Driven Antibiotic-Degradation Article

Wen-Qian Chen, Linyue Li, Lin Li, Wen-Hui Qiu, Liang Tang, Ling Xu, Kejun Xu, Ming-Hong Wu

Engineering 2019, Volume 5, Issue 4,   Pages 755-767 doi: 10.1016/j.eng.2019.02.003

Abstract: However, the TiO2-based catalysts currently in use absorb only a small portion of the solarThe hydrogen production rate of the MoS2/ZIF-8 nanocomposites is 1.79 times higher than thatof MoS2.This work provides a novel perspective for exploring original and efficient 1T/2H-MoS2/MOF-basedThus, 1T/2H-MoS2/MOF-based photocatalysts have excellent prospects for practical antibiotic-degradation

Keywords: 1T/2H-MoS2     ZIF-8     Antibiotic degradation     Photocatalysis    

Impacts of CO2 and H2S on the risk of hydrate formation during pipeline transport of natural gas

Solomon A. Aromada, Bjørn Kvamme

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 616-627 doi: 10.1007/s11705-019-1795-2

Abstract: The impacts of CO and H S in natural gas on the maximum mole-fractions of water that can be toleratedgas from the North Sea is used as a reference case, it contains very negligible amount of CO and no HWater tolerance decreases with increase in concentration of H S.like H S.H S has the most impact, it tolerates the least amount of water among the components studied.

Keywords: hydrate     hydrogen Sulphide     CO2     dew point     pipeline    

Development of H2O/CO2 co-electrolysis in solid oxide electrolysis cell

Fan Hui,Song Shidong,Han Minfang

Strategic Study of CAE 2013, Volume 15, Issue 2,   Pages 107-112

Abstract: The structure of SOEC, the recent development of high temperature steam/CO2 co-electrolysis from

Keywords: SOEC     H2O/CO2 co-electrolysis     syngas     electrolysis efficiency     water electrolysis    

Comprehensive performance analysis and optimization of 1,3-dimethylimidazolylium dimethylphosphate-water

Gorakshnath TAKALKAR, Ahmad K. SLEITI

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 521-535 doi: 10.1007/s11708-021-0720-9

Abstract: The energy and exergy analyses of the absorption refrigeration system (ARS) using H O-[mmim][DMP] mixtureperformance validation of the ARS cycle showed a better coefficient of performance (COP) of 0.834 for HO-[mmim][DMP] in comparison to NH -H O, H O-LiBr, H O-[emim][DMP], and H O-[emim][BF4].

Keywords: ionic liquid driven absorption cycle     H2O-[mmim][DMP]     coefficient of performance (COP)     exergy    

Nickel(II) ion-intercalated MXene membranes for enhanced H2/CO2 separation

Yiyi Fan, Jinyong Li, Saidi Wang, Xiuxia Meng, Yun Jin, Naitao Yang, Bo Meng, Jiaquan Li, Shaomin Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 882-891 doi: 10.1007/s11705-020-1990-1

Abstract: A membrane-assisted separation is promising in producing high-purity H .The prepared membranes showed excellent H /CO mixture separation performance at room temperature.

Keywords: MXene     H2/CO2 separation     nickel ions     hollow fiber    

Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management

Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath, Kwok-Yung YUEN MD,

Frontiers of Medicine 2010, Volume 4, Issue 2,   Pages 147-156 doi: 10.1007/s11684-010-0030-9

Abstract: The pandemic H1N1 2009 influenza virus has caused the first influenza pandemic of the 21st century, leading

Keywords: influenza A virus     H1N1 subtype     pandemic     pathogenesis     virulence factors     immunity     management     antiviral    

Study on tribological and electrochemistry properties of metal materials in H2O2 solutions

Chengqing YUAN, Li YU, Jian LI, Xinping YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 93-98 doi: 10.1007/s11465-012-0313-8

Abstract:

Hydrogen peroxide (H2O2) is a kind of ideal green propellant.sub>2O2.in H2O2 solutions, which has a great effect on wear, the decomposition andsub>2O2 solutions.sub>2O2 solutions.

Keywords: hydrogen peroxide     wear     corrosion     wear mechanism    

Title Author Date Type Operation

Control of the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercaptoof the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercapto-1

Yongli WANG, Shuyuan MA, Xiaodong Lü, Chuang XIE

Journal Article

Design, synthesis, and antiviral properties of 2-aryl-1H-benzimidazole-4-carboxamide derivatives

Xianjin LUO, Zhonglü ZHANG, Yutian YANG, Fei XUE, Naiyun XIU, Yuanbin SHE

Journal Article

Endemicity of H9N2 and H5N1 avian influenza viruses in poultry in China poses a serious threat to poultry

Jiao HU,Xiufan LIU

Journal Article

Histone variants: critical determinants in tumour heterogeneity

Tao Wang, Florent Chuffart, Ekaterina Bourova-Flin, Jin Wang, Jianqing Mi, Sophie Rousseaux, Saadi Khochbin

Journal Article

Probes and nano-delivery systems targeting NAD(P)H:quinone oxidoreductase 1: a mini-review

Journal Article

Minimax Q-learning design for H control of linear discrete-time systems

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Journal Article

TPE-H2MWD: an exact thumbnail preserving encryption scheme with hidden Markov model and weighted diffusion

Xiuli CHAI, Xiuhui CHEN, Yakun MA, Fang ZUO, Zhihua GAN, Yushu ZHANG,chaixiuli@henu.edu.cn,2923105987@qq.com,1060734169@qq.com,zuofang@henu.edu.cn,gzh@henu.edu.cn,yushu@nuaa.edu.cn

Journal Article

growth of a-few-layered MoS on CdS nanorod for high efficient photocatalytic H production

Journal Article

MoS2/ZIF-8 Hybrid Materials for Environmental Catalysis: Solar-Driven Antibiotic-Degradation

Wen-Qian Chen, Linyue Li, Lin Li, Wen-Hui Qiu, Liang Tang, Ling Xu, Kejun Xu, Ming-Hong Wu

Journal Article

Impacts of CO2 and H2S on the risk of hydrate formation during pipeline transport of natural gas

Solomon A. Aromada, Bjørn Kvamme

Journal Article

Development of H2O/CO2 co-electrolysis in solid oxide electrolysis cell

Fan Hui,Song Shidong,Han Minfang

Journal Article

Comprehensive performance analysis and optimization of 1,3-dimethylimidazolylium dimethylphosphate-water

Gorakshnath TAKALKAR, Ahmad K. SLEITI

Journal Article

Nickel(II) ion-intercalated MXene membranes for enhanced H2/CO2 separation

Yiyi Fan, Jinyong Li, Saidi Wang, Xiuxia Meng, Yun Jin, Naitao Yang, Bo Meng, Jiaquan Li, Shaomin Liu

Journal Article

Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management

Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath, Kwok-Yung YUEN MD,

Journal Article

Study on tribological and electrochemistry properties of metal materials in H2O2 solutions

Chengqing YUAN, Li YU, Jian LI, Xinping YAN

Journal Article