Results 41 to 50 of about 30,647 (147)
Dianci bileiqi, 2020 近年来高压输电线路复合绝缘子异常发热频繁发生,对电网安全运行产生严重影响;但目前对其深入研究不够,通常把复合绝缘子异常发热同内绝缘缺陷简单对应,从而盲目采取更换等处理措施,造成人力物力极大浪费。为此,对某500 kV输电线路复合绝缘子大面积异常发热现象进行分析,通过试验分析发现其属于护套表面异常发热,与内绝缘缺陷无直接关联。试验结果表明:随着端部场强增大,异常发热温升增大,表层污秽去除后,异常发热现象消失。提出调整均压环配置来抑制复合绝缘子表层发热,通过带电作业方式实施后 ...
黄振 +6 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Many existing rubrics for L2 argumentative writing prioritize form‐based linguistic accuracy and complexity while insufficiently addressing substantive argumentative rigor and effectiveness. This limitation is further complicated by cross‐cultural variation in rhetorical conventions and educational practices, which challenge the direct ...
Zihan Xu, Peiyun Liu
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Exploring English Language Learners’ Vocabulary Knowledge and Usage When Speaking
International Journal of Applied Linguistics, EarlyView.ABSTRACT Vocabulary forms a fundamental component of speaking ability, as it enables speakers to convey meaning accurately, fluently, and effectively. Although the relationship between vocabulary and speaking has been investigated to some extent, gaps remain in understanding the link between learners’ vocabulary knowledge and their speaking proficiency,
Junyan Guo, Martin East
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Zhongshan Daxue xuebao. Yixue kexue ban, 2010 【目的】 探讨影响非肌层浸润性膀胱尿路上皮癌复发的相关因素及其处理对策65377;【方法】 回顾性分析我院2003年1月到2008年12月161例非肌层浸润性膀胱尿路上皮癌患者临床随访资料,所有病例行经尿道膀胱肿瘤电切术,据术后复发率分析影响复发相关因素65377;【结果】 161例中, 45例术后复发,术后的总复发率为27.95%65377;肿瘤分级为G265380;G3级患者较G1级患者复发率高;肿瘤分期为T1期患者较Ta期患者复发率高;肿瘤多发患者较肿瘤单发患者复发率高 ...
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AI foundation models in plant biology
New Phytologist, EarlyView.Foundation models decode genomes, engineer proteins, phenotype crops, and drive AI agents across plant biology. This figure was created in BioRender (BioRender.com/xcmmkel). Summary Rapid technological progress has enabled plant biologists to accumulate unprecedented volumes of multi‐scale, multi‐modal data, yet this abundance of data has intensified ...
Haopeng Yu
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Zhongshan Daxue xuebao. Yixue kexue ban, 2008 【目的】 探讨原发性肝癌(以下简称肝癌)根治术后复发的相关危险因素。 【方法】 回顾性分析210例根治性切除肝癌患者的临床病理资料,采用Cox模型分析早?晚期复发病例临床病理因素与复发的关系。【结果】 126例患者出现复发(复发率60%),早期复发89例,占70.6%,以Ⅱ型为主,单因素分析显示瘤体直径?血管侵犯?手术切缘?微转移灶和肿瘤分化程度与术后早期复发相关,血管侵犯?微转移灶和病理分级是术后早期复发的独立危险因素;晚期复发37例,占29.4%,以Ⅰ型为主 ...
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Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
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慢性鼻窦炎伴鼻息肉患者术后复发影响因素及血清ECP、IL-21对复发的预测价值
Zhongguo shiyan zhenduanxue目的 探讨慢性鼻窦炎伴鼻息肉患者术后复发的影响因素及血清嗜酸性粒细胞阳离子蛋白（ECP）和白细胞介素-21（IL-21）水平对复发的预测价值，寻找评价慢性鼻窦炎伴鼻息肉术后复发的有效生物学标志物。方法 选取2019年12月至2020年10月衡水市第二人民医院收治的107例接受手术治疗的慢性鼻窦炎伴鼻息肉患者为研究对象，采集患者手术前后静脉血，ImmunoCAP 100TM过敏原检测系统检测血清ECP水平，通过酶联免疫吸附法检测血清IL-21水平，对患者进行随访，随访终点为复发，统计患者术后2年复发情况 ...
王荣霞 +4 more
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Zhongguo shiyan zhenduanxue, 2013 目的观察烧伤病人巨细胞病毒（human cytomegalovirus,HCMV）复发感染情况及对预后的影响。方法对96例烧伤总体表面积（total body surface area,TBSA）>15%的患者进行动态观察。试验分组:（1）按烧伤面积将患者分为三组:Ⅰ组39例（TBSA 15%-49%）,Ⅱ组32例（TBSA 50%-69%）,Ⅲ组25例（TBSA 70%-99%）;（2）根据脓毒血症诊断标准,将患者进一步分为脓毒症组（33例）和非脓毒症组（63例）;（3）根据脓毒症组患者的预后情况 ...
龚芳 +5 more
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Zhongguo shiyan zhenduanxue, 2021 宫颈癌是世界上最常见的恶性肿瘤之一,长期以来困扰女性的生命健康,全球每年超过50万女性被诊断为宫颈癌,导致每年30万人死亡[1]。25%-61%的患者在初次治疗后复发,复发时间通常在初治后的两到三年内[2-3]。宫颈癌复发患者预后差,是导致宫颈癌患者死亡的主要原因。复发后的治疗需根据病变部位及初次治疗方式选择,增加了治疗的难度和复杂性。
孙婧, 巴秀敏, 李云峰, 王铁君
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