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3篇 您的检索式:作者名="Evert Thomas"
    题名 作者 年代 出处 被引量
1Key factors determining biochar sorption capacity for metal contaminants:a literature synthesis显示文摘The sorption capacity and affinity of biochar for metals are both important attributes that determine biochar’s suitability as a soil amendment for contaminant mitigation,yet few analyses have considered both characteristics simultaneously.We present a systematic review of literature published between 2010 and 2018 to test the hypothesis that sorption capacity and affinity are affected by biochar properties,attributes of the metal contaminant,and experimental conditions,in that order.We used random forest(RF)and multi-objective optimization to analyze data of 559 individual Langmuir adsorption isotherms extracted from 133 studies covering the sorption capacity(C_(max))and affinity(K_(L))of biochar for 17 different metals,elabo-rated from six different feedstock classes,three different types of feedstock pretreatment,and five types of post-pyrolysis treatment.Highest sorption values were obtained for Pb(II),Cr(IV),and Cd(II).The feedstock used was the key determinant influencing biochar’s capacity and affinity to sorb metal contaminants(first and fourth most important variable in RF mod-els for C_(max) and K_(L),respectively)with best results obtained for biochar elaborated from nutrient-dense feedstocks(animal biowaste,sludge,and manure).Biochars that had both high sorption capacity and affinity were the result of a longer dura-tion of pyrolysis;they had lower C and higher N and O content,as well as lower C/N and higher O/C and H/C ratios,higher pore volumes and higher pH.Applying some form of pretreatment was better than none,whereas chemical modification was the best of the post-treatment methods analyzed.This review demonstrates clearly that multiple parameters during the preparation process influence the effectiveness of biochar to immobilize metal contaminants.Future research that focuses on mechanisms and the underlying factors for the correlations observed should allow the development of biochar formulations that are even more effective at immobilizing metal contaminants in soils and sediments.Evert Thomas Nils Borchard Christian Sarmiento Rachel Atkinson Brenton Ladd 2020Biochar2020,2,2:5
2“参阳”方辅助治疗口腔鳞状细胞癌的远期疗效评价显示文摘目的本研究旨在进一步评价综合序列治疗中加用中药“参阳”方对口腔鳞状细胞癌(简称鳞癌)患者的远期疗效。方法本组病例系初发口腔鳞癌患者,共238例。随机分为治疗组(参阳方)与对照组(安慰剂)。剔除术后未服满中药3个月患者17例,术后失访8例,实际研究病例数213例。其中治疗组104例,对照组109例。全组病例均经过5~10a以上随访(随访率为96.44%)。数据用Logrank法进行统计分析。结果“参阳”方组的3、5、8、10a生存率分别较对照组提高8.46%、9.26%、9.04%、8.57%,经统计学处理,P=0.1936,P>0.05,实际数据有延长生存率的趋势。结论术后服中药“参阳”方,有明显提高口腔鳞癌患者生存率的趋向,可作为综合序列治疗的辅助方法之一。林国础 邱蔚六 陆昌语 郭一钦 曹阳 Walter.Guralnick Chung-Cheng.Hsich Thomas Albert Williarm C.Wood Edward Everts 2003上海口腔医学2003,12,5:2
3QTL mapping of BNYVV resistance from the WB41 source in sugar beet显示文摘Sara Gidner Britt-Louise Lennefors Nils-Otto Nilsson Jan Bensefeh Evert Johansson Ulf Gyllenspetz and Thomas Kraft 2005Genome2005,48,:1
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