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Study on extraction phenol from coal tar with high flux centrifugal extractor

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International Journal of Coal Science & Technology 2017年第4期4卷 333-341页

作者： Yuan Zhao Xuefeng Mao Weilin Li Xiaohui gu guangyao wang Beijing Research Institute of Coal Chemistry China CoalResearch Institute Beijing 100013 China National Energy Technology and Equipment Laboratory ofCoal Utilization and Emission Control Beijing 100013China State Key Laboratory of Coal Mining and Clean Utilization Beijing 100013 China

Solvent extraction phenol from coal tar were carried out with novel composite yh-3 as extraction agent, and the high flux centrifugal extractor was used as extraction device. Under the premise of high phenol extraction rate, composite yh-3 extraction agent reduces n-n interaction between phenolic compounds and aromatic hydrocarbons, thus decreasing the entrainment of neutral oil. The optimization of operation conditions, such as the diameter of heavy phase weir HWD, the flow ratio, the total flow rate and the rotation speed, are necessary. For single stage extraction experiment, the mass transfer efficiency was up to 84% while the rate of extraction agent loss was lower than 0.28% with the operation conditions of 29 mm of the heavy phase weir diameter （HWD）, 1：1-1.4：1 of the flow ratio range, 160-200 mL/min of the total flow rate and the rotation speed varied from 2200 to 2600 r/min. For three stage counter-current test, the mass transfer efficiency reached up to 92.6% with the optimum operation condition of 29 mm of the HWD, 1：1 of the flow ratio, 200 rnL/min of the total flow rate and 2400 r/rain of the rotation speed. The results indicated that phenol could be extracted effectively from coal tar in the process of multistage continuous count current centrifugal extraction.

关键词： High flux centrifugal extractor Coal tar Phenol Mass transfer efficiency Loss rate

Development and identification of two novel wheat-rye 6R derivative lines with adult-plant resistance to powdery mildew and high-yielding potential

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The Crop Journal 2024年第1期12卷 308-313页

作者： guohao Han Jing wang Hanwen Yan Tiantian gu Lijun Cao Shiyu Liu Xiuquan Li Yilin Zhou Jieru Fan Zhipeng Shi Hong Liu Lihui Li Diaoguo An Center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021HebeiChina The National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China The State Key Laboratory for Biology of Plant Disease and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China

Powdery mildew,caused by Blumeria graminis ***(Bgt),is a devastating disease that seriously threatens wheat yield and *** control this disease,host resistance is the most effective *** with the resistance genes from common wheat,alien resistance genes can better withstand infection of this highly variable *** of elite alien germplasm resources with powdery mildew resistance and other key breeding traits is an attractive strategy in wheat *** this study,three wheat-rye germplasm lines yt4-1,yt4-2,and yt4-3 were developed through hybridization between octoploid triticale and common wheat,out of which the lines yt4-1 and yt4-2 conferred adult-plant resistance(APR)to powdery mildew while the line yt4-3 was susceptible to powdery mildew during all of its growth *** genomic in situ hybridization,multi-color fluorescence in situ hybridization,multi-color GISH,and molecular marker analysis,yt4-1,yt4-2,and yt4-3 were shown to be cytogenetically stable wheat-rye 6R addition and T1RS.1BL translocation line,6RL ditelosomic addition and T1RS.1BL translocation line,and T1RS.1BL translocation line,*** with previously reported wheat-rye derivative lines carrying chromosome 6R,yt4-1 and yt4-2 showed stable APR without undesirable pleiotropic effects on agronomic ***,these novel wheat-rye 6R derivative lines are expected to be promising bridge resources in wheat disease breeding.

关键词： Powdery mildew Secale cereale Triticum aestivum Wheat-rye 6R derivatives Agronomic performance

喷涂医用生物蛋白胶减少心包大部剥脱患者术后渗血

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中国组织工程研究与临床康复 2007年第13期11卷 2522-2524页

作者：赵晔谷天祥喻磊张玉海王春中国医科大学附属第一医院心脏外科辽宁省沈阳市110001

目的:观察医用生物蛋白胶抑制慢性缩窄性心包炎患者术后渗血的疗效。方法:选择2005-03/2006-12在中国医科大学附属第一医院收治,全麻下正中开胸行心包大部剥脱术的慢性缩窄性心包炎患者48例,数字表法随机分成医用生物蛋白胶组和对照组2... 详细信息

目的:观察医用生物蛋白胶抑制慢性缩窄性心包炎患者术后渗血的疗效。方法:选择2005-03/2006-12在中国医科大学附属第一医院收治,全麻下正中开胸行心包大部剥脱术的慢性缩窄性心包炎患者48例,数字表法随机分成医用生物蛋白胶组和对照组2组,每组24例。两组手术方法相同,医用生物蛋白胶组在心脏创面渗血处及胸骨骨髓腔内喷涂生物蛋白胶(上海利康瑞生物工程有限公司提供),对照组常规涂抹医用骨蜡封闭胸骨。记录两组术后第1天引流量及总引流量、引流液血红蛋白质量浓度、拔引流管时间及平均住院时间,在术前、术后当天、术后3,7,14d动态监测中心静脉压。结果:48例患者均完成治疗和测试进入结果分析。①医用生物蛋白胶组引流量少于对照组[术后第1天:(191.32±30.73),(313.42±45.69)mL;总引流量:(360.83±71.82),(522.92±60.84)mL;P均<0.01];引流液血红蛋白质量浓度低于对照组[(116.00±9.29),(125.17±12.33)g/L,P=0.041]。②医用生物蛋白胶组拔引流管时间早于对照组[(41.67±5.99),(48.75±5.93)h,P=0.025];平均住院时间短于对照组[(14.67±1.07),(15.92±1.08)d,P=0.032]。③两组术后中心静脉压值无明显差异。④医用生物蛋白胶未发现不良副作用。结论:医用生物蛋白胶明显减少心包大部剥脱术后心脏创面及胸骨渗血,缩短平均住院时间,且使用安全。

关键词：医用生物蛋白胶慢性缩窄性心包炎心包大部剥脱术生物材料

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牙周细胞在离子化胶原表面的黏附与生长

中国组织工程研究与临床康复 2007年第26期11卷 5133-5136页

作者：陈泽红张焰王永宏蒋波顾忠伟四川大学生物材料工程研究中心四川省成都市610064 四川大学生命科学院四川省成都市610064

目的:评价离子化胶原对不同交联剂的作用及交联后对牙周细胞的黏附与生长的影响。方法:实验于2006-10/2007-01在四川大学生物材料工程研究中心实验室完成。①通过胶原蛋白与甲醇在低温反应得到化学修饰离子化胶原,将胶原海绵和离子化胶... 详细信息

目的:评价离子化胶原对不同交联剂的作用及交联后对牙周细胞的黏附与生长的影响。方法:实验于2006-10/2007-01在四川大学生物材料工程研究中心实验室完成。①通过胶原蛋白与甲醇在低温反应得到化学修饰离子化胶原,将胶原海绵和离子化胶原海绵分别与戊二醛、碳化二亚胺,京尼平在室温条件下发生交联反应,控制交联剂的终质量分数为0.006,交联时间均为24h。②通过测溶液中羟脯氨酸含量测交联产物的交联度;用胶原酶测交联产物体外降解时间;通过牙周细胞在交联产物上的生长情况(A570)确定交联产物对细胞的作用。nm结果:①吸液率和交联度:离子化胶原与各交联剂交联后吸液率都低于胶原交联后,交联度相应提高,胶原和离子化胶原与戊二醛交联其交联度最高,分别为81%,85%。②降解率:离子化胶原的降解率总的趋势低于胶原样品,离子化胶原、胶原被炭化二亚胺交联后,其降解率分别为0.5%,45.0%。③牙周细胞生长情况:离子化胶原交联产物上牙周细胞A570值高于胶原交联nm产物。结论:离子化胶原在交联过程中显示了较好的抗生物降解性能,离子化胶原交联产物在牙周细胞培养过程中显示出了低的细胞毒性,提示其对牙周细胞黏附与生长具有促进作用,可以代替胶原应用于牙周组织治疗。

关键词：胶原离子化胶原交联反应交联度牙周细胞

琼脂凝胶球载体吸附剂清除免疫球蛋白E的性能特征

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中国组织工程研究与临床康复 2007年第1期11卷 90-94页

作者：王为超董瑞玲张红梅张玉环俞耀庭王深琪南开大学生物活性材料教育部重点实验室天津市300071 南开大学医院天津市300071 天津市长征医院变态反应科天津市300021

目的:观察以琼脂凝胶球为载体的吸附剂对血浆中多余免疫球蛋白E的清除效果。方法:实验于2002-04/2004-09在南开大学完成。①高免疫球蛋白E患者血清由天津市长征医院免疫室提供。琼脂粉(北京益利精细化学品有限公司,批号20000810)。环氧... 详细信息

目的:观察以琼脂凝胶球为载体的吸附剂对血浆中多余免疫球蛋白E的清除效果。方法:实验于2002-04/2004-09在南开大学完成。①高免疫球蛋白E患者血清由天津市长征医院免疫室提供。琼脂粉(北京益利精细化学品有限公司,批号20000810)。环氧氯丙烷(天津津达精细化学品厂,批号20010502)。②以20～40目的琼脂凝胶微球为载体,经环氧氯丙烷活化,键联配基色氨酸及手臂制得免疫球蛋白E免疫吸附剂,进行体外静态吸附测试。吸附结果采用酶标法免疫球蛋白E试剂盒检测。③连接手臂的琼脂-色氨酸吸附剂进行血液相容性测试,检测吸附前后血清中免疫球蛋白G、免疫球蛋白M、免疫球蛋白A以及C3,C4含量的变化。全自动血球计数分析仪检测白细胞、红细胞、血小板数目的变化。结果:①不同配基对吸附剂吸附效果的影响:琼脂凝胶载体连接色氨酸配基后对免疫球蛋白E的吸附性能最好,对其吸附主要是一种非极性作用力。②不同缓冲体系及pH值对吸附效果的影响:pH=5～6的范围内色氨酸的饱和溶解度最低,键联量也很低。pH=6～8的磷酸盐缓冲体系,磷酸根离子参与环氧基的开环反应,降低载体的活化效率,同时可键联的活性氨基酸配基的量也相应减少。Tris-HCl和碳酸钠-碳酸氢钠缓冲体系,对色氨酸的饱和溶解度也不是很高。相对来说,pH=7～8的硼酸-硼砂缓冲体系效果较好。③不同手臂对吸附剂吸附效果的影响:与连接前比较,连接丁二酸酐、邻苯二甲酸酐手臂后的吸附剂对免疫球蛋白E的吸附能力均有所提高(56.02%,68.00%,60.87%)。④以色氨酸为配基、丁二酸酐为手臂的琼脂凝胶吸附剂吸附动力学实验:吸附剂在37℃对免疫球蛋白E的吸附率为70.73%。⑤吸附剂的血液相容性实验结果:经过2h的体外全血静态吸附后,吸附剂对5种组分的吸附率为免疫球蛋白A>免疫球蛋白G>C4>C3>免疫球蛋白M,而对最大的免疫球蛋白A的吸附率也仅为26.17%,远低于对免疫球蛋白E的吸附率70.73%。吸附剂对全血细胞有一定的破坏性,静态吸附2h后,白细胞下降27.3%,红细胞下降2.4%,血小板下降6.9%。结论:以琼脂凝胶微球载体,通过交联、活化和固定配基色氨酸成功制备免疫球蛋白E免疫吸附剂。此吸附剂对免疫球蛋白E有较高的清除率,同时具备较好的血液相容性,适用于临床血液灌流治疗支气管哮喘疾病。

关键词：哮喘免疫吸附剂免疫球蛋白E 琼脂凝胶

Grading severity of microscopic vascular invasion was independently associated with recurrence and survival following hepatectomy for solitary hepatocellular carcinoma

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Hepatobiliary Surgery and Nutrition 2024年第1期13卷 16-28页

作者： Lan-Qing Yao Chao Li Yong-Kang Diao Lei Liang Hang-Dong Jia Shi-Chuan Tang Yong-Yi Zeng Han Wu Ming-Da wang Li-Hui gu Timothy M.Pawlik Wan Yee Lau Cheng-Wu Zhang Feng Shen Kui wang Tian Yang Department of Hepatobiliary Surgery Eastern Hepatobiliary Surgery HospitalSecond Military Medical University(Navy Medical University)ShanghaiChina Department of General Surgery Cancer CenterDivision of Hepatobiliary and Pancreatic SurgeryZhejiang Provincial People’s HospitalAffiliated People’s HospitalHangzhou Medical CollegeHangzhouChina Department of Hepatobiliary Surgery Mengchao Hepatobiliary HospitalFujian Medical UniversityFuzhouChina Department of Surgery Ohio State UniversityWexner Medical CenterColumbusOHUSA Faculty of Medicine the Chinese University of Hong KongShatinNew TerritoriesHong KongChina Eastern Hepatobiliary Clinical Research Institute Third Affiliated Hospital of Navy Medical UniversityShanghaiChina

Background:Hepatectomy is the preferred treatment for solitary hepatocellular carcinoma(HCC)without macrovascular invasion and distant metastasis,but long-term survival remains unsatisfactory in certain *** sought to identify whether the grading severity of microscopic vascular invasion(MVI)was associated with recurrence and survival among patients with solitary ***:Consecutive patients who underwent hepatectomy for solitary HCC were identified from a multicenter prospectively-collected *** were categorized into three groups according to the MVI grading system proposed by the Liver Cancer Pathology Group of China:M0(no MVI),M1(1-5 sites of MVI occurring≤1.0 cm away from the tumor),and M2(>5 sites occurring≤1.0 cm or any site occurring>1 cm away from the tumor).Recurrence-free survival(RFS)and overall survival(OS)were compared among the ***:Among 227 patients,97(42.7%),83(36.6%),and 47(20.7%)patients had M0,M1,and M2,*** RFS rates among patients with M0,M1,and M2 were 38.3,35.1,11.6 months,respectively,while OS rates were 66.8,62.3,30.6 months,respectively(both P<0.001).Multivariate Cox-regression analyses demonstrated that both M1 and M2 were independent risk factors for RFS(hazard ratio 1.20,95%CI:1.03-1.89,P=0.040;and hazard ratio 1.67,95%CI:1.06-2.64,P=0.027)and OS(hazard ratio 1.28,95%CI:1.05-2.07,P=0.035;and hazard ratio 1.97,95%CI:1.15-3.38,P=0.013).Conclusions:Grading severity of MVI was independently associated with RFS and OS after hepatectomy for solitary *** surveillance for recurrence and potentially adjuvant therapy may be considered for patients with MVI,especially individuals with more severe MVI grading(M2).

关键词： Hepatocellular carcinoma microscopic vascular invasion recurrence survival hepatectomy

Association of Pringle maneuver with postoperative recurrence and survival following hepatectomy for hepatocellular carcinoma: a multicenter propensity score and competing-risks regression analysis

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Hepatobiliary Surgery and Nutrition 2024年第3期13卷 412-424,I0003-I0010页

作者： Shi-Chuan Tang Yong-Kang Diao Kong-Ying Lin Chao Li Xiao Xu Lei Liang Jie Kong Qing-Jing Chen Xian-Ming wang Fu-Bao Liu Wei-Min gu Ya-Hao Zhou Ying-Jian Liang Hong-Zhi Liu Ming-Da wang Lan-Qing Yao Timothy M.Pawlik Feng Shen Wan Yee Lau Tian Yang Yong-Yi Zeng Department of Hepatobiliary Surgery Mengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouChina Department of Hepatobiliary Surgery Eastern Hepatobiliary Surgery HospitalNavy Medical University(Second Military Medical University)ShanghaiChina Department of Hepatobiliary Surgery Affiliated Hospital of Nantong UniversityNantongChina Department of Hepatobiliary Surgery People’s Hospital of Zhejiang ProvincialPeople’s Hospital of Hangzhou Medical CollegeHangzhouChina Department of Hepatobiliary Heze Municiple HospitalHezeChina Department of General Surgery First Affiliated Hospital of Shandong First Medical University&Shandong Provincial Qianfoshan HospitalJinanChina Department of Hepatobiliary Surgery First Affiliated Hospital of Anhui Medical UniversityHefeiChina The First Department of General Surgery Fourth Hospital of HarbinHarbinChina Department of Hepatobiliary Surgery Pu’er People’s HospitalPu’erChina Department of Hepatobiliary Surgery First Affiliated Hospital of Harbin Medical UniversityHarbinChina Department of Surgery Ohio State UniversityWexner Medical CenterColumbusOHUSA Faculty of Medicine The Chinese University of Hong KongHong KongChina Department of Hepatopancreatobiliary Surgery First Affiliated Hospital of Fujian Medical UniversityFuzhouChina The Liver Disease Research Center of Fujian Province FuzhouChina

Background:The application of Pringle maneuver(PM)during hepatectomy reduces intraoperative blood loss and the need for perioperative transfusion,but its effect on long-term recurrence and survival for patients with hepatocellular carcinoma(HCC)remains *** sought to determine the association between the application of PM and post-hepatectomy oncologic outcomes for patients with ***:Patients who underwent curative hepatectomy for HCC at 9 Chinese hospitals from January 2010 to December 2018 were *** two propensity score methods[propensity score matching(PSM)and inverse probability of treatment weight(IPTW)],cumulative recurrence rate and cancer-specific mortality(CSM)were compared between the patients in the PM and non-PM *** competing-risks regression models were performed to adjust for the effect of non-cancer-specific mortality and other prognostic risk ***:Of the 2,798 included patients,2,404 and 394 did and did not adopt PM(the PM and non-PM groups),*** rates of intraoperative blood transfusion,postoperative 30-day mortality and morbidity were comparable between the two groups(all P>0.05).In the PSM cohort by the 1:3 ratio,compared to 382 patients in the non-PM group,1,146 patients in the PM group also had the higher cumulative 5-year recurrence rate and CSM(63.9%and 39.1%vs.55.3%and 31.6%,both Pytical cohorts[hazard ratio(HR),0.82 and 0.77 in the adjusted entire cohort,HR 0.80 and 0.73 in the PSM cohort,and HR 0.80 and 0.76 in the IPTW cohort,respectively].Conclusions:The findings suggested that no application of PM during hepatectomy for patients with HCC reduced the risk of postoperative recurrence and cancer-specific death by appr

关键词： Hepatocellular carcinoma(HCC) Pringle maneuver(PM) recurrence survival hepatectomy

低氧胁迫下大豆发芽富集γ-氨基丁酸品种筛选及培养条件优化

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食品科学 2014年第21期35卷 159-163页

作者：王淑芳杨润强顾振新南京农业大学食品科技学院江苏南京210095

比较理想M-7、95-优1、苏青1号和yh-NJ大豆品种培养4 d后的生理生化变化情况,结果表明:yh-NJ的发芽率、芽长和呼吸强度显著高于其他品种,发芽4 d后yh-NJ的蛋白酶活力、游离氨基酸含量的增加量也显著高于其他品种,γ-氨基丁酸(γ-aminobu... 详细信息

比较理想M-7、95-优1、苏青1号和yh-NJ大豆品种培养4 d后的生理生化变化情况,结果表明:yh-NJ的发芽率、芽长和呼吸强度显著高于其他品种,发芽4 d后yh-NJ的蛋白酶活力、游离氨基酸含量的增加量也显著高于其他品种,γ-氨基丁酸(γ-aminobutyric acid,GABA)产量及增加量均为最大。由此筛选出大豆yh-NJ是发芽富集GABA的良好品种。以yh-NJ为原料,在单因素试验结果的基础上,通过正交试验,得到发芽大豆富集GABA的最佳培养条件为:正常培养4 d、低氧胁迫培养48 h、培养液p H 5.0、发芽温度30℃。在此条件下,GABA产量达到1.97 mg/g,是随机组的1.56倍。

关键词：大豆发芽 γ-氨基丁酸富集品种筛选条件优化低氧胁迫

白噪声联合非营养性吸吮减轻早产儿视网膜病筛查疼痛的效果

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护理研究 2021年第17期35卷 3154-3157页

作者：任向芳顾卓颖杨梅李磊王自珍中国人民解放军总医院儿科医学部北京100700 中国人民解放军总医院第七医学中心八一儿童医院山西省儿童医院

目的:探讨白噪声、非营养性吸吮对减轻早产儿视网膜病筛查操作性疼痛的临床效果。方法:选取2019年6月-12月在新生儿重症监护病房(NICU)住院的早产儿236例,随机分为4组,对照组60例、白噪声组56例、吸吮组58例、联合组62例,对照组给予常... 详细信息

目的:探讨白噪声、非营养性吸吮对减轻早产儿视网膜病筛查操作性疼痛的临床效果。方法:选取2019年6月-12月在新生儿重症监护病房(NICU)住院的早产儿236例,随机分为4组,对照组60例、白噪声组56例、吸吮组58例、联合组62例,对照组给予常规体位安抚法,白噪声组给予白噪声干预,非营养性吸吮组给予非营养性吸吮干预,联合组给予白噪声联合非营养性吸吮干预,在眼底筛查前后使用早产儿疼痛量表(PIPP‐R)进行疼痛评分,并比较两组心率和血氧饱和度。结果:筛查前3 min、筛查结束后1 min及3 min,白噪声组、非营养性吸吮组、联合组患儿心率、血氧饱和度和PIPP‐R组间效应、时间效应及交互效应差异有统计学意义(P<0.05);结论:白噪声、非营养性吸吮及两者联合均能减轻早产儿视网膜病筛查操作性疼痛,且两种方法联合实施效果优于白噪声或非营养性吸吮单独实施。

关键词：早产儿白噪声非营养性吸吮视网膜病筛查疼痛护理