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DE based economic control chart design and application for a typical petrochemical process

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Frontiers of Engineering Management 2017年第3期4卷 348-356页

作者： Zhi LI Feng QIAN wenli DU Weimin zhong Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of Education East China University of Science and Technology

Petrochemical industry plays an important role in the development of the national economy. Purified terephthalic acid(PTA) is one of the most important intermediate raw materials in the petrochemical and chemical fiber industries. PTA production has two parts:p-xylene(PX) oxidation process and crude terephthalic acid(CTA) hydropurification process. The CTA hydropurification process is used to reduce impurities, such as 4-carboxybenzaldehyde, which is produced by a side reaction in the PX oxidation process and is harmful to the polyester industry. From the safety and economic viewpoints, monitoring this process is necessary. Four main faults of this process are analyzed in this study. The common process monitoring methods always use T^2 and SPE statistic as control limits. However, the traditional methods do not fully consider the economic viewpoint. In this study, a new economic control chart design method based on the differential evolution(DE) algorithm is developed. The DE algorithm transforms the economic control chart design problem to an optimization problem and is an excellent solution to such problem. Case studies of the main faults of the hydropurification process indicate that the proposed method can achieve minimum profit *** method is useful in economic control chart design and can provide guidance for the petrochemical industry.

关键词： petrochemical PTA economic control chart design process monitoring DE algorithm

SYSTEM IDENTIFICATION METHOD OF LINEAR AND NON-LINEAR LIQUID PREPARATIVECHROMATOGRAPHIC SEPARATION

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Chinese Journal of Reactive Polymers 1997年第1期6卷 13-21页

作者： Shu wenli Li zhong Huang Peiquan Lin Qingsheng Research Institute of Chemical Engineering South China University of Technology Guangzhou 510641 P. R. China

The paper proposes the identification method of linear and non-linear chromatographic system. Isotherms and lumped mass transfer coefficients of chromatography separating isomer sorbitol and mannitol on D80 adsorbent are determined. The analyses of root mean square error of chromatography elution curves are carried out. The results show that the system studied is non-linear and the theoretical elution curves of the non-linear chromatographic model are more accurate than those of the linear chromatographic model. Results of parameter sensitivity analyses show that elution curves of non-linear chromatographic separation are more sensitive to the variation of parameter "ai" in the adsorption isotherms than to the variation of parameter "bi" as well as lumped mass transfer coefficients.

关键词： Non-linear Chromatography System Identification Separation.

Engineering of the microstructures of enzymatic hydrolysis lignin-derived hard carbon anodes for sodium-ion batteries

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Resources Chemicals and Materials 2023年第3期2卷 245-251页

作者： Shunsheng Yang Zhihong Zhang Xueqing Qiu Lei zhong Jiahong Huang Huiting Zhang Jianhui Ma Qingwei Meng Xihong Zu wenli Zhang Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of Technology(GDUT)100 Waihuan Xi RoadPanyu DistrictGuangzhou 510006China School of Advanced Manufacturing Guangdong University of Technology(GDUT)JieyangJieyang 522000China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Hard carbon is considered as the most commercially applicable anode for sodium-ion *** has the characteristics of sustainable,low cost,high carbon content(>60%)and abundant oxygen functional groups,which is expected to be used as a promising candidate precursor for low-cost hard *** structure and electrochemical performances of hard carbons could be regulated by adjusting carbonization *** microstructure and electrochemical performance of LDHC anode are highly dependent on the carbonization *** carbonization temperature could reduce specific surface area and improve initial coulombic *** slope and plateau capacity of the LDHC anode could also be adjusted by changing the carboniza-tion *** LDHC prepared at 1200℃ showed the best sodium-ion storage performance,with an initial coulombic efficiency of 78.9%and a reversible sodium-ion storage capacity of 284.7 mAh g^(−1).

关键词： Lignin Hard carbon Anode Sodium-ion battery

The association between weight stability and parenteral nutrition characteristics and survival in patients with colorectal cancer

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Gastroenterology Report 2019年第6期7卷 419-425,I0002页

作者： wenli Liu Aiham Qdaisat Eric Lee Jason Yeung Khanh Vu Jun-zhong Lin Todd Canada Shouhao Zhou Lorenzo Cohen Eduardo Bruera Sai-Ching J.Yeung Department of Palliative Rehabilitation and Integrative MedicineThe University of Texas MD Anderson Cancer CenterHoustonTXUSA Department of Emergency Medicine The University of Texas MD Anderson Cancer CenterHoustonTXUSA McGovern Medical School HoustonTXUSA Biomedical Science Texas A&M UniversityCollege StationTXUSA Department of General Internal Medicine The University of Texas MD Anderson Cancer CenterHoustonTXUSA Department of Colorectal Surgery Sun Yat-sen University Cancer CenterGuangzhouGuangdongP.R.China Division of Pharmacy The University of Texas MD Anderson Cancer CenterHoustonTXUSA Department of Public Health Sciences Pennsylvania State University School of MedicineHersheyPAUSA Department of Endocrine Neoplasia and Hormonal Disorders The University of Texas MD Anderson Cancer CenterHoustonTXUSA

Objective:Knowledge about the impact of metabolic disturbances and parenteral nutrition(PN)characteristics on the survival of cancer patients receiving PN is *** aimed to assess the association between clinical and PN characteristics and survival in colorectal-cancer patients receiving PN ***:Our study included 572 consecutive colorectal-cancer patients who had received PN support between 2008 and *** characteristics,body mass index,weight,medical/surgical history,indication for PN,PN data and survival were *** between clinical and PN characteristics and survival were analysed with important confounding ***:The final cohort included 437 evaluable patients,with a mean age of 57 ***-one percent of the study population had advanced stage of colorectal *** weight(weight change≥2.5%)prior to PN initiation[hazard ratio(HR)=1.41,P=0.023]was adversely associated with survival after adjusting for multiple factors including cancer *** obstruction(HR=1.75,P=0.017)as a PN indication was associated with worse survival when compared with without bowel *** PN amino acid by ideal body weight(g•kg^(-1))(HR=0.59,P=0.029)was associated with longer survival,whereas a higher percentage of non-PN intravenous calories(HR=1.04,P=0.011)was associated with shorter survival independently of confounding ***:Body mass index and weight stability can be useful nutritional indices for survival prediction in cancer patients receiving *** planning should take into account of non-PN calories to achieve optimal energy support and *** research is needed to define optimal PN amino-acid requirement and energy balance.

关键词： BMI weight loss non-parenteral calorie energy balance parenteral nutrition

DETERMINATION　OF　THERMODYNAMIC　AND　KINETIC　PARAMETERS　OF　LARGE　SCALE　CHROMATOGRAPHIC　SEPARATION　OF　SUGAR　AND　REDUCING　SUGAR

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Chinese Journal of Reactive Polymers 1996年第1期5卷 84-91页

作者： Li zhong Shu wenli Liao Yongzhong Huang Peiquan Xu Qingcai Research Institute of Chemical Engineering South China UniVersity of Technology GuangZhou 510641

The parameter identification model of largr scale chromatography separation process is proposed. The Phase equilibrium constants and lumped mass transfer coefficients of sugar and reducing sugar adsorption on D1, D2 and D3 resins as well as the axial dispersion coefficients of the fluid through packed columns are determined by means of the pulse-response experiment technique with an inert substance as a tracer and the chromatography measuring technique. The elution curve calculated from these parameters is good agreement with the experimental elution curve. The sensitivity analysis of these parameters is carried out, and the ressult shows that the elation curves of chromatography separation are more sensitive to the variations Of the Phase equilibrium relationship than to the variation of the axial dispersion as well as the lumped mass transfer coefficients.

关键词： Chromatographic Separation Resins Parameter Determination Sugar Reducing sugar

Why psychosis is frequently associated with Parkinson's disease?

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Neural Regeneration Research 2013年第27期8卷 2548-2556页

作者： Jingmei zhong Shaoyuan Wu Ying Zhao Hui Chen Naiwei Zhao Kunwen Zheng zhong Zhao wenli Chen Bo Wang Kunhua Wu Department of Neurology First People's Hospital of Yunnan Province Department of Magnetic Resonance Imaging First People's Hospital of Yunnan Province

Psychosis is a common non-motor symptom of Parkinson’s disease whose pathogenesis remains poorly understood. Parkinson’s disease in conjunction with psychosis has been shown to induce injury to extracorticospinal tracts as wel as within some cortical areas. In this study, Parkinson’s disease patients with psychosis who did not receive antipsychotic treatment and those without psychosis underwent diffusion tensor imaging. Results revealed that in Parkinson’s disease patients with psychosis, damage to the left frontal lobe, bilateral occipital lobe, left cingulated gyrus, and left hippocampal white-matter fibers were greater than damage to the substantia nigra or the globus pal idus. Damage to white-matter fibers in the right frontal lobe and right cingulate gyrus were also more severe than in the globus pal idus, but not the substantia nigra. Damage to frontal lobe and cingulate gyrus white-matter fibers was more apparent than that to occipital or hippocampal fiber damage. Compared with Parkinson’s disease patients without psychosis, those with psychosis had significantly lower fractional anisotropy ratios of left frontal lobe, bilateral occipital lobe, left cingu-lated gyrus, and left hippocampus to ipsilateral substantia nigra or globus pal idus, indicating more severe damage to white-matter fibers. These results suggest that psychosis associated with Par-kinson’s disease is probably associated with an imbalance in the ratio of white-matter fibers be-tween brain regions associated with psychiatric symptoms （frontal lobe, occipital lobe, cingulate gyrus, and hippocampus） and those associated with the motor symptoms of Parkinson’s disease （the substantia nigra and globus pal idus）. The relatively greater damage to white-matter fibers in psychiatric symptom-related brain regions than in extracorticospinal tracts might explain why psy-chosis often occurs in Parkinson’s disease patients.

关键词： neural regeneration brain injury Parkinson's disease psychosis diffusion tensor imaging frac-tional anisotropy functional magnetic resonance frontal lobe occipital lobe cingulate gyrus hippocampus extracorticospinal tract grants-supported paper neuroregeneration

木质素衍生炭在碱金属离子电池负极中的研究进展

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化工学报 2022年第8期73卷 3369-3380页

作者：钟磊邱学青张文礼广东工业大学轻工化工学院广东广州510006 广东省植物资源生物炼制重点实验室广东广州510006 广东工业大学先进制造学院广东揭阳522000

碱金属离子在商品化石墨负极材料的嵌入/脱出过程中会发生较大的体积膨胀,导致容量衰减快、倍率性能差等问题。木质素衍生炭材料具有原料丰富、经济、制备工艺简单及结构可控等优点,作为碱金属离子电池负极表现出较高的容量、较好的倍... 详细信息

碱金属离子在商品化石墨负极材料的嵌入/脱出过程中会发生较大的体积膨胀,导致容量衰减快、倍率性能差等问题。木质素衍生炭材料具有原料丰富、经济、制备工艺简单及结构可控等优点,作为碱金属离子电池负极表现出较高的容量、较好的倍率性能和循环稳定性。木质素衍生炭材料在过去十多年中取得了一些研究进展。基于此,简要介绍了碱金属离子电池碳材料负极的储能机理及特点,系统综述了木质素衍生炭材料在碱金属离子电池负极材料中的最新研究进展,重点总结了其合成策略、结构特征、储存机理以及其电化学性能等,指出了层间距调控、碳层排序和表面功能化与电化学性能之间的构效关系。此外,拓展概述了木质素衍生炭材料的发展前景和面临的挑战,为木质素衍生炭材料的下一步研究和开发提供参考。

关键词：木质素复合材料制备锂离子电池钠离子电池钾离子电池电化学

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Proxitome profiling reveals a conserved SGT1-NSL1 signaling module that activates NLR-mediated immunity

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Molecular Plant 2024年第9期17卷 1369-1391页

作者： Dingliang Zhang Xinxin Yang Zhiyan Wen Zhen Li Xinyu Zhang Chenchen zhong Jiajie She Qianshen Zhang He Zhang wenli Li Xiaoyun Zhao Mingliang Xu Zhen Su Dawei Li Savithramma P.Dinesh-Kumar Yongliang Zhang State Key Laboratory of Plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBejing 100193China Department of Plant Biology and The Genome Center College of Biological SciencesUniversity of CaliforniaDavisDavisCA 95616USA State Key Laboratory of Plant Environmental Resilience College of Agronomy and BiotechnologyChina Agricultural UniversityBejing 100193China

Suppressor of G2 allele of skp1(SGT1)is a highly conserved eukaryotic protein that plays a vital role in growth,development,and immunity in both animals and *** some SGT1 interactors have been identified,the molecular regulatory network of SGT1 remains ***1 serves as a co-chaperone to stabilize protein complexes such as the nucleotide-binding leucine-rich repeat(NLR)class of immune receptors,thereby positively regulating plant ***1 has also been found to be asso-ciated with the SKP1-Cullin-F-box(SCF)E3 ubiquitin ligase ***,whether SGT1 targets im-mune repressors to coordinate plant immune activation remains *** this study,we constructed a toolbox for TurbolD-and split-TurbolD-based proximity labeling(PL)assays in Nicotiana benthamiana and used the PL toolbox to explore the SGT1 interactome during pre-and post-immune *** comprehensive SGT1 interactome network we identified highlights a dynamic shift from proteins associ-ated with plant development to those linked with plant immune *** found that SGT1 interacts with Necrotic Spotted Lesion1(NSL1),which negatively regulates salicylic acid-mediated defenseby inter-fering with the nucleocytoplasmic trafficking of non-expressor of pathogenesis-related genes 1(NPR1)during N NLR-mediated response to tobacco mosaic ***1 promotes the SCF-dependent degrada-tion of NSL1 to facilitate immune activation,while salicylate-induced protein kinase-mediated phosphory-lation of SGT1further potentiates this *** NNLR,NSL1also functions in several other NLR-mediated ***,our study unveils the regulatory landscape of SGT1 and reveals a novel SGT1-NSL1 signaling module that orchestrates plant innate immunity.

关键词： suppressor of G2 allele of skp1 SGT1 proximity labeling N NLR immune receptor Necrotic Spotted Lesion 1 NSL1 salicylic acid ubiquitination

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边缘图像中圆形轮廓的两步法检测

计算机辅助设计与图形学学报 2005年第2期17卷 243-246页

作者：于中徐文立陈峰清华大学自动化系北京100084

针对边缘图像中的圆形可能局部畸变的情况 ,提出了利用边缘分段拟合进行圆形检测的两步法详细描述了该算法的具体步骤 ,并与随机Hough变换 (RHT)进行了对比实验实验结果表明 ,文中算法鲁棒性强。

关键词：圆形检测拟合图像识别算法