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Numerical simulation study of the influence on stability of slope by underground mining under opencast coal mine slope

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Journal of Coal Science & Engineering(China) 2011年第4期17卷 397-400页

作者： LIU ting-ting lu Guo-bin TONG Li-ming School of Mining Liaoning Technical University Fuxin 123000 China

In view of the study on mining transferred from open-pit to underground, the research on the problem of the stabil- ity of slope is less. This article combined the actual situation of the Gaohai Coal Mine in Fuxin City and set up a three-dimensional model of the part of Huizhou open-pit slope by the finite difference software. Through the three-dimensional numerical simulation study of the influence on the stability of slope by underground mining, the basic characteristics of the open-pit slope deformation and the situation of basic stability were discussed. The simulation results of the mining slope of the displacement and deformation analysis of the state for mining provide a reference to the slope stability research.

关键词： numerical simulation slope stability open-pit mine pit mining

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脑腱黄瘤病一例报告

磁共振成像 2024年第7期15卷 151-153页

作者：陈春晖雒攀董文洁卢婷何元林张鹏周俊林兰州大学第二医院放射科兰州730030 兰州大学第二临床医学院兰州730030 甘肃省医学影像重点实验室兰州730030 医学影像人工智能甘肃省国际科技合作基地兰州730030 兰州大学第二医院病理科兰州730030

本文为回顾性研究,遵守《赫尔辛基宣言》,经过兰州大学第二医院伦理委员会批准,免除受试者知情同意,批准文号:2023A-169。患者女,29岁,主诉“智力发育低下、运动不耐受伴反复癫痫发作23年”。为求诊治,家属分别于2000年、2016年携带患... 详细信息

本文为回顾性研究,遵守《赫尔辛基宣言》,经过兰州大学第二医院伦理委员会批准,免除受试者知情同意,批准文号:2023A-169。患者女,29岁,主诉“智力发育低下、运动不耐受伴反复癫痫发作23年”。为求诊治,家属分别于2000年、2016年携带患者在外院就诊,诊断为“癫痫、白内障”,先后予以氯硝西泮、丙戊酸钠、卡马西平、左乙拉西坦控制癫痫症状,并行双眼白内障手术。

关键词：脑腱黄瘤病腱黄色瘤磁共振成像头颅

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甲醇中毒后视力损害法医学损伤程度鉴定2例

刑事技术 2024年第5期49卷 537-542页

作者：鲁婷占梦军范飞陈新邓振华四川大学华西基础医学与法医学院成都610041 上海市公安局物证鉴定中心上海市现场物证重点实验室上海200083

视功能障碍的客观准确评定一直是法医学鉴定难点之一。鉴定实践中视力障碍的致伤因素多为物理性因素,少数是化学性致伤因素,如甲醇中毒。甲醇及其代谢产物可直接损害眼球组织和引起血管麻痹扩张,损害神经系统。中毒数小时至2~3 d后即可... 详细信息

视功能障碍的客观准确评定一直是法医学鉴定难点之一。鉴定实践中视力障碍的致伤因素多为物理性因素,少数是化学性致伤因素,如甲醇中毒。甲醇及其代谢产物可直接损害眼球组织和引起血管麻痹扩张,损害神经系统。中毒数小时至2~3 d后即可出现视力障碍,表现为复视、视物不清及眼球胀痛等,之后视力急剧减退、甚至失明。眼科检查可见瞳孔散大、固定,对光反射减弱或消失。眼底检查可见静脉扩张,视神经乳头充血、水肿,继之苍白或视神经萎缩。视神经损害很少完全恢复正常。本文介绍2例甲醇中毒后视力损害的损伤程度鉴定案例,并围绕甲醇中毒的确证、视觉障碍的客观评定以及甲醇中毒与视力损害之间的因果关系分析等方面进行对比论证,以期为类似案件提供参考。

关键词：法医临床学甲醇中毒视力损害损伤程度

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恶性肿瘤C76类目常见编码错误案例分析

中国病案 2024年第3期25卷 27-29页

作者：梁丹梅卢婷龚小玲黄庆文广西玉林市第一人民医院病案科广西壮族自治区玉林市537000

目的分析某医院近3年恶性肿瘤编码于C76类目(其他和不明确部位的恶性肿瘤)的典型错误案例,提高恶性肿瘤编码准确率。方法从住院病案首页管理系统中检索2020年1月1日-2022年12月31日3年期间主要诊断编码为C76类目的病案共53例,由3名编码... 详细信息

目的分析某医院近3年恶性肿瘤编码于C76类目(其他和不明确部位的恶性肿瘤)的典型错误案例,提高恶性肿瘤编码准确率。方法从住院病案首页管理系统中检索2020年1月1日-2022年12月31日3年期间主要诊断编码为C76类目的病案共53例,由3名编码员和1名病理科副主任医师,依据ICD肿瘤编码规则逐一核查。结果共有49份病案主要诊断编码错误使用C76类目,错误率为92.45%。修正后分类于以下几个类目:结缔组织和软组织恶性肿瘤、皮肤黑色素瘤和皮肤其他恶性肿瘤、口腔恶性肿瘤各12例,错误占比均为24.49%;女性生殖器官恶性肿瘤、淋巴结和其他部位的继发恶性肿瘤、结缔组织和其他软组织动态未定或动态未知的肿瘤各4例,错误占比均为8.16%;B-细胞淋巴瘤1例,错误占比为2.04%。结论主要诊断错误编码于C76类目的前3位发生在结缔组织和软组织恶性肿瘤、皮肤黑色素瘤和皮肤其他恶性肿瘤、口腔恶性肿瘤等病种,多为编码年资5年以下的编码员出现错误。部分临床医师书写不规范肿瘤诊断、编码员病理学和解剖学知识欠缺,不熟悉肿瘤编码规则和不认真阅读手术记录,是造成错误编码于C76类目的主要原因,加强肿瘤诊断书写和疾病编码的培训与质控是降低编码错误率的关键。

关键词： C76类目解剖部位肿瘤形态学诊断书写编码质量

Joint enhancement of lead accumulation in Brassica plants by EDTA and ammonium sulfate in sand culture

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Journal of Environmental Sciences 2002年第2期14卷 216-220页

作者： XIONG Zhi\|ting, lu Ping (Department of Environmental Sciences, Wuhan University, Wuhan 430072, China. Department of Environmental Sciences Wuhan University Wuhan 430072

When EDTA was added alone in the Pb\|contaminated sand, the plant biomass and the total Pb amount in plant decreased in both species, Brassica pekinensis and B. juncea var. multiceps, though the shoot Pb amount increased. In contrast, when (NH 4) 2SO 4 was added alone in the Pb\|contaminated sand, little effect was observed on the shoot Pb amount, though the root Pb amount was significantly increased in B. juncea var. multiceps. When amending EDTA and (NH 4) 2SO 4 in combination, however, the shoot Pb amount in both species substantially increased, being, on an average, 2 times and 9 times higher than that in EDTA alone or (NH 4) 2SO 4 alone amended treatment, respectively. The two amendments showed antagonism for plant growth, but synergism for Pb bioaccumulation. B. pekinensis showed its highest level of shoot and total Pb amount in the treatment amended with EDTA and (NH 4) 2SO 4 only a half as much as in the other treatments. It is inferred that the mechanisms responsible for the joint\|enhanced Pb accumulation might be concerned with the acidification of the growth medium, cation exchange reaction and relieving EDTA induced toxicity as results by amending ammonium sulfate.

关键词： lead bioaccumulation EDTA ammonium sulfate Brassica

Impact of Online Community Structure on Information Propagation:Empirical Analysis and Modeling

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Journal of Harbin Institute of Technology(New Series) 2013年第3期20卷 124-128页

作者： Zhong He Lian-Ren Wu Xia Chen ting-Jie lu School of Economics and Management Beijing University of Post and Telecommunications

Online social networking sites ( OSNS) ,as a popular social media platform,have been developed massively for business and research purposes. In this paper,it investigated the impact of community structure in online social network on information propagation. A SI (Susceptible-Infected) model based on community structure was proposed. In the SI model,the heterogeneity of user's active time was taken into account. From the results,it was found that the number of links among communities determines the fraction of infected nodes. With the increase of the number of groups G,however,the fraction of infected nodes remains approximately constant. The simulation results will be of great significance: the information will last relatively short for group networks which have either a small or a large number of groups. The results can be useful for optimizing or controlling information,such as propagating rumors in online social networks.

关键词： community structure information propagation user behavior heterogeneity

Effects of nitrogen ion implantation on lily pollen germination and the distribution of the actin cytoskeleton during pollen germination

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Chinese Science Bulletin 2000年第18期45卷 1677-1680页

作者： REN Haiyun HUANG Zhonglian CHEN Zhiling YUAN Ming lu ting Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education Beijing Normal UniversityBeijing 100875China Key Laboratory of Plant Physiology and Biochemistry of Ministry of Agriculture China Agricultural UniversityBeijing 100094China Institution of Low Energy Nuclear Physics Beijing Normal UniversityBeijing 100875China

The effects of low energy nitrogen ion implantation on lily (Lilium davidii Duch.) pollen germination and the distribution of the actin cytoskeleton during pollen germination have been studied. Preliminary results showed that the ratio of pollen germination increased from (16.0±1.6)% to (27.0±2.1)% when implanted with nitrogen ions by 100 keV and a dose of 1013 ions/cm2. Further experiments were performed by staining the actin filaments in pollen with rhodamine-phalloidin and detected by using laser confocol microscopy. After hydration for 10 h, the actin filaments in ion implanted pollen grains tended to form thick bundles oriented in parallel or ring shape at the germinal furrow, indicating that the effect of nitrogen ion implantation on the germination of pollen might be mediated by reorganization of the actin cytoskeleton.

关键词： nitrogen ion implantation lily pollen microfilament.

颈胸段椎管内硬膜外富于淋巴细胞浆细胞型脑膜瘤一例

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磁共振成像 2024年第4期15卷 162-164页

作者：董文洁王媛媛周凤瑜卢婷刘显旺薛彩强周俊林兰州大学第二医院放射科兰州730000 兰州大学第二临床医学院兰州730000 甘肃省医学影像重点实验室兰州730000 医学影像人工智能甘肃省国际科技合作基地兰州730000

本文为回顾性研究,遵守《赫尔辛基宣言》,经过兰州大学第二医院伦理委员会批准,免除受试者知情同意,批准文号:2023A-169。患者女,60岁,因“右上肢麻木无力三个月,加重一周”于2018年5月至兰州大学第二医院就诊。专科检查:神志清,格拉斯... 详细信息

本文为回顾性研究,遵守《赫尔辛基宣言》,经过兰州大学第二医院伦理委员会批准,免除受试者知情同意,批准文号:2023A-169。患者女,60岁,因“右上肢麻木无力三个月,加重一周”于2018年5月至兰州大学第二医院就诊。专科检查:神志清,格拉斯哥昏迷评分(Glasgow Coma Scale,GCS)15分,查体合作,自动体位,言语清晰,记忆力、理解力、定向力检查未见异常。双侧瞳孔等大等圆,对光反射存在。四肢肌张力正常,四肢体肌力5级,四肢未见肌肉萎缩及震颤。右上肢麻木,以右手手指为著,其余四肢深浅感觉检查未见异常,双侧指鼻试验、跟膝胫试验正常。闭目难立征(−)。颈软无抵抗,双侧克氏征、布氏征均为阴性。实验室检查结果未见明显异常。

关键词：富于淋巴细胞浆细胞型脑膜瘤颈胸段椎管硬膜外磁共振成像

Science Letters:Hydrothermal production of formic and acetic acids from syringol

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第8期11卷 613-618页

作者： lu-ting PAN Zheng SHEN Lei WU Ya-lei ZHANG Xue-fei ZHOU Fang-ming JIN MOE Key Laboratory of Yangtze River Water Environment State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University Shanghai 200092 China

The production of formic and acetic acids （or salts） by hydrothermal oxidation of syringol, a model compound for lignin, was investigated using a batch reactor. Results show that the highest yields of formic and acetic acids were, respectively, 59.6% and 11.3% at the reaction condition of 0.5 mol/L NaOH, 120% H2O2 supply and 280 ℃. These results will inform studies aiming to develop more enviromnental friendly lignin conversion processes by obtaining products beyond a CO2 end product.

关键词： Lignin Syringol Formic acid. Acetic acid. Hvdrothermal process