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ZnFe2O4空心球的制备及由顺磁到铁磁性的转变(英文) 被引量:3
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作者 葛毅成 王志龙 +1 位作者 易茂中 冉丽萍 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第7期1503-1509,共7页
采用简单浸渍法,以制备的酚醛(PF)球为模板,经500~700℃退火,合成粒径为200~302 nm 的ZnFe2O4空心球(ZFHs)。所制备的ZFHs 由尺寸15~20 nm 的大量小纳米粒子组装而成,在这些纳米粒子之间存在着许多介孔。经500~550℃退火后,ZFHs 呈单一... 采用简单浸渍法,以制备的酚醛(PF)球为模板,经500~700℃退火,合成粒径为200~302 nm 的ZnFe2O4空心球(ZFHs)。所制备的ZFHs 由尺寸15~20 nm 的大量小纳米粒子组装而成,在这些纳米粒子之间存在着许多介孔。经500~550℃退火后,ZFHs 呈单一的立方尖晶石结构,而较高的退火温度导致六方氧化锌和菱形α-Fe2O3二次相的形成。纳米粒子的晶粒尺寸随退火温度的升高而增大。退火温度的降低导致顺磁性向铁磁性的新转变,饱和磁化强度从2.3 A·m^2/kg 显著提高到13.5 A·m^2/kg。研究空心球体结构的形成对Fe^3+和Zn^2+在尖晶石结构中再分布的影响。 展开更多
关键词 ZnFe2O4空心球 纳米粒子 磁性 磁转变
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Rare complication of acute adrenocortical dysfunction in adrenocortical carcinoma after transcatheter arterial chemoembolization:A case report
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作者 zhi-long wang Xin Sun +2 位作者 Feng-Li Zhang Ting wang Ping Li 《World Journal of Clinical Cases》 SCIE 2021年第26期7937-7943,共7页
BACKGROUND Adrenocortical carcinoma(ACC)is a rare and highly invasive endocrine malignant tumor with a poor prognosis.Although surgical resection is the main treatment for ACC,postoperative recurrence and metastasis h... BACKGROUND Adrenocortical carcinoma(ACC)is a rare and highly invasive endocrine malignant tumor with a poor prognosis.Although surgical resection is the main treatment for ACC,postoperative recurrence and metastasis have become the important factors of death.Transcatheter arterial chemoembolization(TACE)is an important option for the treatment of advanced ACC with liver metastasis.However,due to the small number of patients treated for ACC,the safety of the operation is not completely clear and needs to be further studied.CASE SUMMARY A 47-year-old patient with ACC after surgery was admitted for reexamination by abdominal computerized tomography suggesting liver metastasis.Because the patient expressed reluctance to undergo surgery again,we treated her with TACE for the liver lesions.After treatment,symptoms of acute adrenal dysfunction such as decreased blood pressure,anorexia,and fatigue appeared,which were relieved after hydrocortisone treatment.To date,the patient's liver lesion is well controlled and no other metastases are observed.CONCLUSION We report a rare case of acute adrenal hypofunction after TACE.Glucocorticoid supplementation can alleviate the symptoms. 展开更多
关键词 Adrenocortical carcinoma Adrenocortical hypofunction Transcatheter arterial chemoembolization Liver metastasis TREATMENTS Case report
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Jasmonate Signal Pathway in Arabidopsis 被引量:15
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作者 Xiao-Yi Shan zhi-long wang Daoxin Xie 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2007年第1期81-86,共6页
Jasmonates (JAs), which include jasmonic acid and its cyclopentane derivatives are synthesized from the octadecanoid pathway and widely distributed throughout the plant kingdom. JAs modulate the expression of numero... Jasmonates (JAs), which include jasmonic acid and its cyclopentane derivatives are synthesized from the octadecanoid pathway and widely distributed throughout the plant kingdom. JAs modulate the expression of numerous genes and mediate responses to stress, wounding, insect attack, pathogen infection, and UV damage. They also affect a variety of processes in many plant developmental processes. The JA signal pathway involves two important events: the biosynthesis of JA and the transduction of JA signal. Several important Arabidopsis mutants in jasmonate signal pathway were described in this review. 展开更多
关键词 JASMONATE SCF^COl1 ARABIDOPSIS
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