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Bioaugmentation: a new strategy for removal of recalcitrant compounds in wastewater—a case study of quinoline

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Journal of Environmental Sciences 2000年第1期12卷 24-27页

作者： han li-ping WANG Jian-long SHI han-chang QIAN Yi State Key Joint Laboratory of Environmental Simulation and Pollution Control Department of Environmental Science and EngineeringTsinghua UniversityBeijing 100084China

To demonstrate the feasibility of using bioaugmentation to enhance biodegradation of quinoline, four strains capable of using quinoline as sole source of carbon, nitrogen and energy were isolated from different environmental samples by enrichment technique. Screening for quinoline degrader with the highest quinoline mineralizing rate was carried out in respirometer and one bacterium identified as \%Burkholderia pickettii W2\% was chosen as inoculum in bioaugmentation tests. Quinoline biodegradation experiment results showed that this bacterium degraded quinoline very quickly. 100, 200 and 500 mg/L quinoline can be transformed completely within 1, 2 and 7 hours respectively. A bioaugmentation procedure was proposed and laboratory experiments confirmed that bioaugmentation was an effective way to improve the performance of traditional wastewater treatment facilities for quinoline removal. The effect of inoculum size on bioaugmentation was also investigated in this paper.

关键词： bioaugmentation biodegradation quinoline inocula CLC number: X703 Document code: A

孕康口服液对缺铁性贫血孕鼠产后恢复及子代质量的影响

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中成药 2024年第4期46卷 1151-1161页

作者：李婷颜美秋苏洁郭静妍汪晨兴韩丽萍俞静静陈素红吕圭源楼招欢浙江中医药大学药学院浙江杭州310053

目的探究孕康口服液对缺铁性贫血(IDA)孕鼠产后恢复及子代质量的影响。方法采用饲喂缺铁饲料联合放血法建立缺铁性贫血孕鼠模型,造模成功后,在妊娠第7天同期灌胃给予琥珀酸亚铁片(52 mg/kg)及孕康口服液(9、6、4 mL/kg),每天1次,直至... 详细信息

目的探究孕康口服液对缺铁性贫血(IDA)孕鼠产后恢复及子代质量的影响。方法采用饲喂缺铁饲料联合放血法建立缺铁性贫血孕鼠模型,造模成功后,在妊娠第7天同期灌胃给予琥珀酸亚铁片(52 mg/kg)及孕康口服液(9、6、4 mL/kg),每天1次,直至产后6周。结束后,检测小鼠相关体征指标(自主活动、抓力、背温、爪色)、脏器系数(心脏、脾、胸腺系数)、外周血指标(RBC、HGB、HCT、MCH、MCHC)、铁代谢相关血清因子指标(EPO、FEP、SF、sTfR、TFR1),免疫组化法检测肝组织FPN、Tf蛋白表达,免疫荧光法检测肝组织TFR1、Hepcidin蛋白表达,RT-qPCR检测肝组织Hepcidin、FPN、Tf、TFR1 mRNA表达,测定子代相关情况(存活率、自主活动、抓力、爪色、心脏系数、脾脏系数、体长、外周血象指标)。结果孕康口服液可提高IDA孕鼠产后的自主活动次数、抓力、背温、爪色(P<0.05,P<0.01),降低心脏和脾脏系数(P<0.01),提高全血RBC、HGB、HCT、MCH、MCHC水平(P<0.05,P<0.01),降低血清EPO、FEP、TFR1、sTfR水平(P<0.05,P<0.01),升高SF水平(P<0.05,P<0.01),提高肝组织Hepcidin、FPN mRNA及蛋白表达(P<0.05,P<0.01),降低Tf、TFR1 mRNA及蛋白表达(P<0.05,P<0.01)。与模型组比较,孕康口服液各剂量组子代存活率、自主活动次数、抓力提高(P<0.05,P<0.01),心脏系数、脾脏系数降低(P<0.05,P<0.01),体长增加(P<0.05,P<0.01),全血RBC、HGB、HCT水平升高(P<0.01)。结论孕康口服液可改善IDA孕鼠的贫血状况,促进其产后恢复,并提高子代质量。

关键词：孕康口服液缺铁性贫血铁调素-膜铁转运铁蛋白轴子代质量

Tensile strength behavior of cement-stabilized dredged sediment reinforced by polypropylene fiber

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Frontiers of Structural and Civil Engineering 2024年第3期18卷 380-392页

作者： Lei LANG Jiangshan li Xin CHEN lijun han ping WANG State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicChinese Academy of SciencesWuhan 430071China Hubei Provincial Key Laboratory of Contaminated Sludge and Soil Science and Engineering Wuhan 430071China University of Chinese Academy of Sciences Beijing 100049China

This study evaluated the feasibility of using polypropylene fiber(PF)as reinforcement in improving tensile strength behavior of cement-stabilized dredged sediment(CDS).The effects of cement content,water content,PF content and length on the tensile strength and stress–strain behavioral evolutions were evaluated by conducting splitting tensile strength ***,the micro-mechanisms characterizing the tensile strength behavior inside PF-reinforced CDS(CPFDS)were clarified via analyzing macro failure and microstructure *** results indicate that the highest tensile strengths of 7,28,60,and 90 d CPFDS were reached at PF contents of 0.6%,1.0%,1.0%,and 1.0%,exhibiting values 5.96%,65.16%,34.10%,and 35.83%higher than those of CDS,***,3 mm,PF of showed the best reinforcement *** CPFDS exhibited obvious tensile strain-hardening characteristic,and also had better ductility than *** mix factor(C_(C)^(a)/C_(w)^(b))and time parameter(q_(t0)(t))of CDS,and the reinforcement index(k_(t-PF))of CPFDS were used to establish the tensile strength prediction models of CDS and CPFDS,considering multiple *** PF“bridge effect”and associated cementation-reinforcement coupling actions inside CPFDS were mainly responsible for tensile strength behavior *** key findings contribute to the use of CPFDS as recycled engineering soils.

关键词： dredged sediment chemical stabilization fiber reinforcement splitting tensile strength micro-mechanisms

A deoxidation thermodynamic model for 304 stainless steel considering multiple-components coupled reactions

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Journal of Iron and Steel Research International 2024年第1期31卷 74-91页

作者： Yan Yan Guang-hao Shang li-ping Zhang Shao-ying li han-jie Guo School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials Beijing100083China Henan Jinhui Stainless Steel Industry Group Co. Ltd.Xuchang461500HenanChina Changge Jinhui Recycling Metal R&D Co. Ltd.Xuchang461500HenanChina

A thermodynamic model for predicting the equilibrium oxygens of 304 stainless steel was developed based on the theory of slag-steel equilibrium,the law of mass conservation,and the ion and molecule coexistence *** the developed model,the Fe-Cr-Mn-Si-Al-S-O-melts reaction system and CaO-MgO-CaF_(2)-FeO-MnO-Al_(2)O_(3)-SiO_(2)-Cr2O_(3)slags were *** oxygen contents calculated by the model are in good agreement with experimental results and reference *** equilibrium oxygen contents in 304 stainless steel mainly decrease with increasing binary basicity(w(CaO)/w(SiO_(2)),where w(i)is the mass percentage of component i)and decreasing *** binary basicity at 2.0 while maintaining temperatures lower than 1823 K will keep the oxygen contents in the 304 stainless steel lower than 15×10^(-6).The equilibrium oxygen contents may also be decreased with increasing content of MgO in slags,which is more significant at lower binary ***,a small amount of FeO,MnO,and Al_(2)O_(3)(about 0-2.5 wt.%)in slags has little effect on equilibrium oxygen ***,it is found that the[C]-[O]reaction may occur during refining process but will not significantly affect the equilibrium oxygen contents.

关键词： Complex deoxidation Thermodynamic model Ion and molecule coexistence theory 304 stainless steel Slag-steel reaction

Microdeletion on Xq27.1 in a Chinese VACTERL-like Family with Kidney and Anal Anomalies

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Biomedical and Environmental Sciences 2024年第5期37卷 503-510页

作者： li Min ZhanG Yu Lan ZhanG Kai li li ping ping LYU Yu han liANG Ya Xin YU Yue Department of Gynecology and Obstetrics Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijing 100730China Chinese Academy of Medical Sciences and Peking Union Medical College Beijing HospitalBeijing 100730China The Key Laboratory of Geriatrics Beijing Institute of GeriatricsBeijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijing 100730China

Objective VATER/VACTERL-like association is associated with adverse pregnancy *** evidence of this disorder is *** this study,we aimed to provide genetic insights to improve the diagnosis of *** We have described a Chinese family in which four members were affected by renal defects or agenesis,anal atresia,and anovaginal fistula,which is consistent with the diagnosis of a VACTERL-like *** and genetic analyses were conducted using genome and exome *** Segregation analysis revealed the presence of a recessive X-linked microdeletion in two living affected individuals,harboring a 196–380 kb microdeletion on Xq27.1,which was identified by familial exome *** sequencing was performed on the affected male,confirming a-196 kb microdeletion in Xq27.1,which included a 28%loss of the CDR-1 *** family members were included in the co-segregation analysis,and only VACTERL-like cases with microdeletions were reported in *** These results suggest that the 196–380 kb microdeletion in Xq27.1 could be a possible cause of the VATER/VACTERL-like ***,further genetic and functional analyses are required to confirm or rule out genetic background as the definitive cause of the VACTERL association.

关键词： Prenatal diagnosis VACTERL whole-genome sequencing whole-exome sequencing X-linked

Method for predicting surface subsidence under excavating non-bedded shape room

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中国有色金属学会会刊：英文版 2005年第S1期15卷 208-212页

作者： li Yong-shu, han li-ping (Southwest Jiaotong University, Chengdu 610031, China)

The surface subsidence is caused by underground constructing, mining and excessively pumping groundwater. And disastrous accidents on unexpected collapse and landslide along bed plane probably occurred. Based on the stochastic medium theory and the methods for predicting ground point’s movements and deformations in any direction under folding structure strata and any shape rooms, the basic factors in varied geology and excavating were comprehensively analyzed. The formulas for predicting ground point’s movements and deformations were derived under excavating underground non-bedded shape rooms. Because the formulas for predicting surface subsidence can’t be integrated, the numerical integral method and the computer technique were adopted to calculate the values of integral equations.

关键词： non-bedded shape room excavating surface subsidence predicting

Indinavir Resistance Evolution in One Human Immunodeficiency Virus Type 1 Infected Patient Revealed by Single-Genome Amplification

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Virologica Sinica 2010年第5期25卷 316-328页

作者： Qing-mao GENG han-ping li Zuo-yi BAO Yong-jian liU Dao-min ZHUANG lin li Si-yang liU Jing-yun li State Key Laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and Epidemiology Beijing100071 China

Human Immunodeficiency Virus Type 1 exists in vivo as quasispecies, and one of the genome's characteristics is its diversity. During the antiretroviral therapy, drug resistance is the main obstacle to effective viral prevention. Understanding the molecular evolution process is fundamental to analyze the mechanism of drug resistance and develop a strategy to minimize resistance. Objective: The molecular evolution of drug resistance of one patient who had received reverse transcriptase inhibitors for a long time and had treatment which replaced Nevirapine with Indinavir was analyzed, with the aim of observing the drug resistance evolution pathway. Methods: The patient, XLF, was followed-up for six successive times. The viral populations were amplified and sequenced by single-genome amplification. All the sequences were submitted to the Stanford HIV Drug Resistance Database for the analysis of genotypic drug resistance. Results: 149 entire protease and 171 entire reverse transcriptase sequences were obtained from these samples, and all sequences were identified as subtype B. Before the patient received Indinavir, the viral population only had some polymorphisms in the protease sequences. After the patient began Indinavir treatment, the variants carrying polymorphisms declined while variants carrying the secondary mutation G73S gained the advantage. As therapy was prolonged, G73S was combined with M46I/L90M to form a resistance pattern M46I/G73S/L90M, which then became the dominant population. 97.9% of variants had the M46I/G73S/L90M pattern at XLF6. During the emergence of protease inhibitors resistance, reverse transcriptase inhibitors resistance maintained high levels. Conclusion: Indinavirresistance evolution was observed by single-genome amplification. During the course of changing the regimen to incorporate Indinavir, the G73S mutation occurred and was combined with M46I/L90M.

关键词： Single-Genome Amplification Indinavir Resistance Evolution M46I/G73S/L90M Mutation Pattern

Influence of powder oxidation on powder properties and formability in H13 hot-work steels processed by electron beam melting

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Journal of Iron and Steel Research International 2024年第4期31卷 924-932页

作者： Wei liu Yan Wang li-xiong han Ying-kang Wei Hui-ping Tang Shi-feng liu School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina School of Engineering Zhejiang University City CollegeHangzhou 310015ZhejiangChina

The oxygen content of metal powder is decisive for the recyclability of *** research on the effect of oxygen content on powder properties and material formability has practical significance for economical production with additive manufacturing while preventing the waste of ***,we deliberately oxidized the powder by baking at high temperature to increase the oxygen content in the powder and gave the calculation method of the oxygen content in the powder oxidation *** majority of oxygen element was found in the oxide particles in the powder and the oxide flm on the powder surface,which did affect the flowability of the *** is worth noting that the increase in the oxygen content does not change the phase of H13 steel,but it can promote the molten pool flow and obtain a smoother *** increase in the oxygen content in the powder is not the decisive factor for the formability and defects of the printed *** is the combined effect of the powder deformation,the increase in the oxygen content,and the impurity pollution after repeated use,which leads to the limitation of repeated utilization of the powder.

关键词： Additive manufacturing Electron beam melting H13 steel powder-Powder oxidation

Clinical analysis of 12 cases of ovarian neuroendocrine carcinoma

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World Journal of Clinical Cases 2024年第6期12卷 1111-1119页

作者： Xiao-Yu Xing Wei Zhang li-Ya liu li-ping han Department of Gynecology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450000Henan ProvinceChina

BACKGROUND Neuroendocrine neoplasms of the female genital tract are *** To enhance our clinical understanding of neuroendocrine carcinoma(NEC)of the *** A retrospective review was conducted on 12 patients diagnosed with NEC of the ovary,analyzing clinicopathological characteristics,treatment modalities,and survival *** The median age at diagnosis was 34.5 years(range:20 to 62 years).Among the 12 cases,9 were small cell carcinoma of the ovary and 3 were large cell *** cases were stage I tumors,one case was stage IV,and six cases were stage *** patients underwent surgery as part of their *** patients received adjuvant *** the 12 patients,one patient received radiotherapy,and one patient with a BRCA2 mutation was administered PARP inhibitor maintenance after *** median progression-free survival was 13 months,and the median overall survival was 19.5 *** cases remained disease-free,while eight cases experienced tumor recurrence,including three cases that resulted in death due to disease *** NEC of the ovary is a rare condition that is more common in women of childbearing age and is associated with aggressive behavior and poor clinical *** resection remains the mainstay of treatment,with some patients benefiting from adjuvant chemoradiation therapy.

关键词： Neuroendocrine carcinoma Ovary Pathology Treatment