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Highly Efficient,Green Oxidation of Alcohols Using Novel Heterogeneous Ruthenium Catalyst

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Chinese Chemical Letters 2003年第6期14卷 615-618页

作者： Hong bing ji Yu QIAN School of Chemical Engineering South China University of TechnologyGuangzhou 510640

MnFe1.4Ru0.45Cu0.15O4 was an effective heterogeneous catalyst for the oxidation of various types of alcohols to the corresponding carbonyl compounds using atmospheric pressure of oxygen under mild conditions. Further... 详细信息

关键词： Alcohol oxidation ruthenium heterogeneous reaction surfactant.

Continuous-Variable Entanglement in Tunnel-Coupled Double Quantum Wells

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Communications in Theoretical Physics 2009年第5期51卷 831-838页

作者： Lü Xin-You LIU ji-bing HAO Xiang-Ying HUANG Pei yang Xiao-Xue School of Physics Huazhong University of Science and Technology Wuhan 430074 China

This paper investigates the generation and evolution of continuous-variable entanglement in an asymmetric coupled-quantum well （CQW） system. Our numerical results show that this CQW system can be regarded as a source of macroscopic entangled light over a wide range of initial states of the cavity field. This investigation can be used for achieving the macroscopic entangled light in the CQW solid-state medium, which is much more praeticaJ than that in an atomic medium because of its flexible design and the controllable interference strength.

关键词： continuous-variable entanglement semiconductor quantum well

Comparison of phytotoxicity of copper and nickel in soils with different Chinese plant species

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Journal of Integrative Agriculture 2015年第6期14卷 1192-1201页

作者： LI Bo LIU ji-fang yang Jun-xing MA Yi-bing CHEN Shi-bao Institute of Plant Nutrition and Environmental Resources Liaoning Academy of Agricultural Sciences National Soil Fertility and Fertilizer Effects Long-term Monitoring Network Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Centre for Environmental Remediation Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences

Ecological risk assessment of metals in soils is important to develop the critical loads of metals in soils. Phytotoxicity is one of the endpoints for ecological risk assessment of soils contaminated with metals. The sensitivity of eight Chinese plant species（bok choy, mustard, tomato, green chilli, paddy rice, barley, spinach and celery） to copper（Cu） and nickel（Ni） toxicity in two Chinese soils was investigated to assess their potential use for ecological risk assessment in the region. The results showed that bok choy and mustard were the two most sensitive species to Cu and Ni toxicities. Assessment of metal accumulation by the plants demonstrated that bok choy shoot had the highest bioconcentration factor（BCF, the ratio of metal concentration in plant shoots to metal concentration in soil）. Given the importance of bok choy to agricultural production in Asia, it is therefore important that these sensitive plant species are included in species sensitivity distributions for ecological risk assessment of Cu and Ni in soils.

关键词： paddy shoot nickel tomato contaminated toxicity agricultural vegetative displayed ranged

Low-temperature Degradation of Zirconia-based All-ceramic Crowns Materials: A Mini Review and Outlook

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Journal of Materials Science & Technology 2016年第7期32卷 593-596页

作者： Huazhe yang yang ji Department of Biophysics School of Fundamental Sciences China Medical University Department of Stomatology General Hospital of Shenyang Military Area Command

Zirconia-based bioceramics have been widely applied in the field of prosthodontics owing to its desir- able mechanical performance, biocompatibility and aesthetics. However, the low-temperature degradation （LTD） of tetragonal zirconia （ZrOJ under intraoral condition can lead to the deterioration of mechanical properties of ZrO2 dental crowns, which contribute to many clinical failures in long-term observations. The long-term tetragonal phase stability and mechanical properties of yttria-stabilized tetragonal zir- conia polycrystal （Y-TZP） are influenced by grain size of ZrO2 crystals, distribution and properties of stabilizers, the humid environment, etc. However, it is still difficult to control the abovementioned factors at the same time. This review summarizes the major advances in researches dealing with LTD and clari- fies the obstacles to stabilization of the tetragonal ZrO2. Furthermore, the suggestions on improving the LTD resistance of tetragonal ZrO2 are proposed, which is the catalyst to promote the long-term stability of ZrO2-based all-ceramic crowns.

关键词： Zirconia Prosthodontics Low-temperature degradation Tetragonal phase

Irreversible electroporation for liver metastasis from pancreatic cancer: A case report

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World Journal of Clinical Cases 2020年第2期8卷 390-397页

作者： yang-yang Ma Juan-Juan Shi ji-bing Chen Ke-Chen Xu Li-Zhi Niu Central Laboratory Fuda Cancer HospitalJinan UniversityGuangzhou 510665Guangdong ProvinceChina Department of Oncology Fuda Cancer HospitalJinan UniversityGuangzhou 510665Guangdong ProvinceChina

BACKGROUND Pancreatic cancer has a poor prognosis;40%–50% of patients have liver metastases at the time of initial diagnosis and only 15%–20% undergo surgical resection. Irreversible electroporation(IRE) is a new, non-thermal local ablation method for solid tumors, which can induce cell membrane permeabilization,resulting in unrecoverable nanoscale perforation and apoptotic cell death without damaging the structural components of *** SUMMARY We report the case of a 66-year-old female patient with liver metastasis from pancreatic cancer with a pathological diagnosis of poorly differentiated adenocarcinoma. Carbohydrate antigen 19-9 was elevated to 420.3 U/m *** tomography showed a pancreas mass of 2.7 cm × 2.5 cm and single liver metastasis of 1.4 cm × 1.1 cm in the S6 area. The patient underwent IRE and arterial infusion chemotherapy and received tegafur. The therapeutic effect of the combination treatment has been evaluated as complete response. To date, the patient has survived for > 12 mo and is receiving tegafur as maintenance therapy(at the time this case report was written).CONCLUSION IRE plus arterial infusion chemotherapy and tegafur may be synergistic,providing a reference for treating liver metastasis from pancreatic cancer.

关键词： Irreversible electroporation Liver metastasis from pancreatic cancer Chemotherapy Complete response Case report

Cryoablation for liver metastasis from solid pseudopapillary tumor of the pancreas: A case report

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World Journal of Clinical Cases 2020年第2期8卷 398-403页

作者： yang-yang Ma ji-bing Chen Juan-Juan Shi Li-Zhi Niu Ke-Chen Xu Central Laboratory Fuda Cancer HospitalJinan UniversityGuangzhou 510665Guangdong ProvinceChina Department of Oncology Fuda Cancer HospitalJinan UniversityGuangzhou 510665Guangdong ProvinceChina

BACKGROUND Solid pseudopapillary tumor(SPT) of the pancreas is a rare pancreatic tumor and 10% to 15% of cases are associated with metastasis. Cryoablation is a new method that can induce tumor necrosis, and treatment of tumors by cryoablation can cause anti-tumor immune *** SUMMARY A 16-year-old woman with SPT of the pancreas developed liver metastases 5.3 years after complete resection of the primary pancreatic tumor. She was admitted with chief complaints of abdominal pain in the upper abdomen and a weight loss of approximately 5 kg over 4 mo. Carbohydrate antigen(CA) 125,carcinoembryonic antigen, and CA 199 were normal. An abdominal computed tomography scan found multiple nodules in the right lobe of the liver that measured approximately 13.5 cm × 10.8 cm × 21.4 cm. Immunohistochemical staining results showed that CD10 and CD56 were positive, and the patient was diagnosed with SPT of the pancreas with liver metastasis. The patient underwent percutaneous cryoablation and interventional embolization. During the 5-year follow-up, the patient remained disease-free after cryoablation, with relatively normal immune *** Herein, we for the first time report the treatment of liver metastasis from SPT of the pancreas using cryoablation plus interventional embolization, which could be a promising alternative therapy for pancreatic SPT liver metastasis.

关键词： Solid pseudopapillary tumor Pancreas Liver metastasis Cryoablation Interventional embolization Case report

Xa1 Allelic R Genes Activate Rice Blight Resistance Suppressed by Interfering TAL Effectors

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Plant Communications 2020年第4期1卷 54-62页

作者： Chonghui ji Zhiyuan ji Bo Liu He Cheng Hua Liu Sanzhen Liu bing yang Gongyou Chen Division of Plant Sciences C.Bond Life Science CenterUniversity of MissouriColumbiaMO 65211USA School of Agriculture and Biology/State Key Laboratory of Microbial Metabolism Shanghai Jiao Tong UniversityShanghai 200240P.R.China National Key Facility for Crop Gene Resources and Genetic Improvement(NFCRI) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081P.R.China Department of Plant Pathology Kansas State UniversityManhattanKS 66506USA Donald Danforth Plant Science Center St.LouisMO 63132USA

Xanthomonas oryzae pathovar oryzae(Xoo)uses transcription activator-like effectors(TALEs)to cause bacterial blight(BB)in *** turn,rice has evolved several mechanisms to resist BB by targeting *** mechanism involves the nucleotide-binding leucine-rich repeat(NLR)resistance gene Xa1 and ***,Xoo has evolved TALE variants,C-terminally truncated versions(interfering TALEs or iTALEs),to overcome Xa1 ***,it remains unknown to what extent the two co-adaptive mechanisms mediate Xoo–rice *** this study,we cloned and characterized five additional Xa1 allelic R genes,Xa2,Xa31(t),Xa14,CGS-Xo111,and Xa45(t)from a collection of rice *** analysis revealed that Xa2 and Xa31(t)from different rice cultivars are *** genes and their predicted proteins were found to be highly conserved,forming a group of Xa1 *** XA1 alleles could be distinguished by the number of C-terminal tandemrepeats consisting of 93 amino acid residues and ranged from four in XA14 to seven in XA45(t).Xa1 allelic genes were identified in the 3000 rice genomes *** the other hand,iTALEs could suppress the resistance mediated by Xa1 allelic R genes,and iTALE genes were prevalent(95%)in Asian,but not in African Xoo *** findings demonstrate the prominence of a defense mechanism in which rice depends on Xa1 alleles and a counteracting mechanismin which Xoo relies on iTALEs for BB.

关键词： Xa2 Xa14 Xa45(t) TAL effector iTAL effector bacterial blight

Mechanics of water pore formation in lipid membrane under electric field

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Acta Mechanica Sinica 2017年第2期33卷 234-242页

作者： bing Bu Dechang Li jiajie Diao Baohua ji Biomechanics and Biomaterials Laboratory Department of Applied MechanicsBeijing Institute of Technology Department of Cancer Biology College of MedicineUniversity of Cincinnati

Transmembrane water pores are crucial for substance transport through cell membranes via membrane fusion, such as in neural communication. However, the molecular mechanism of water pore formation is not clear. In this study, we apply all-atom molecular dynamics and bias-exchange metadynamics simulations to study the process of water pore formation under an electric field. We show that water molecules can enter a membrane under an electric field and form a water pore of a few nanometers in diameter. These water molecules disturb the interactions between lipid head groups and the ordered arrangement of lipids. Following the movement of water molecules, the lipid head groups are rotated and driven into the hydrophobic region of the membrane. The reorientated lipid head groups inside the membrane form a hydrophilic surface of the water pore. This study reveals the atomic details of how an electric field influences the movement of water molecules and lipid head groups, resulting in water pore formation.

关键词： Cell membrane Membrane fusion Water pore formation Electric field Molecular dynamics simulation

Identifying and localizing of seismogenic electromagnetic anomalies from data observed by permanent MT stations

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Science China Earth Sciences 2024年第5期67卷 1698-1713页

作者： bing HAN Wenbao HU Guoze ZHAO ji TANG State Key Laboratory of Earthquake Dynamics Institute of GeologyBeijing 100029China Key Laboratory of Exploration Technologies for Oil and Gas Resources of Ministry of Education Yangtze UniversityWuhan 430100China

In this research, an arbitrarily oriented electric dipole at subsurface is used to simulate Seismogenic Electromagnetic(SEM) radiation emanating from a seismic zone during its gestation phase. Analytical synthesis of responses at the Lijiang magnetotelluric(MT) station has revealed that SEM radiation could induce identifiable anomalies in the electromagnetic(EM)spectrum, apparent resistivity and phase within specific frequency bands. Background variations were extracted from long-term observation data of Dali and Lijiang MT stations, enabling the identification of SEM anomalies related to the Yunlong and yangbi earthquakes. Multiple parameters of dipole sources at subsurface were obtained by applying the Differential Ant Colony Optimization(DACO) algorithm to anomalous data of two stations with multi-frequencies and various response functions. The spatial distribution of these predicted dipoles is predominantly clustered in or around the seismogenic area, with their azimuthal orientation aligning towards the seismogenic fault in general. This study has demonstrated the potential of using subsurface electric dipole simulations for SEM radiation analysis, offering a feasible approach for the prediction and understanding of seismogenic zones.

关键词： MT responses Identifying SEM anomaly Vector electric dipole responses Localizing SEM sources by inversion