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Storm Liquefaction Deposits:A Possibility of Time Reversal in Sedimentary Strata of an Estuarial Coastal Area

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Journal of Ocean University of China 2024年第4期23卷 961-969页

作者： XU guohui REN Yupeng HU Guanghai LIU Zhiqin SUN Yongfu lin lin Key Laboratory of Marine Environment and Ecology Ministry of EducationOcean University of ChinaQingdao 266100China Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Submarine Geosciences and Prospecting Techniques Ministry of EducationOcean University of ChinaQingdao 266100China First Institute of Oceanography Ministry of Natural ResourceQingdao 266061China National Deep Sea Center Qingdao 266237China

In the sedimentary strata dating of estuarial coastal areas,it is often found that there is phenomenon of time-reversal in *** seabed sediments could be liquefied under storm waves.A laboratory wave flume experiment demonstrated that storm-induced liquefaction deposits are formed by the oscillations of liquefied *** this paper,the particle size distribution and ^(210)Pb_(ex) specific activity of the sediment samples from the liquefaction disturbed zone and adjacent stable zone of the Yellow River Delta were *** stratigraphic divisions based on storm liquefaction deposit sequence can effectively explain the vertical changes in particle size and ^(210)Pb_(ex) specific *** to the differentiation of particles during the storm induced liquefaction,coarse and fine particles regrouped,which could explain the phenomenon of time-reversal in dating data.

关键词： ^(210)Pb_(ex)specific activity liquefaction deposition reversal sediment

FLAIR血管高信号在接受血管内治疗的急性缺血性卒中患者中的预测价值

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国际脑血管病杂志 2024年第1期32卷 62-66页

作者：闫瑶瑶宋建勋林国辉黄腾达温馨如广东医科大学湛江524023 深圳市宝安区人民医院核磁共振室深圳518101 广东医科大学深圳宝安临床医学院深圳518101

血管内治疗已成为大血管闭塞所致急性缺血性卒中的标准治疗方法。应用神经影像学技术进行适当患者选择和转归预测对于成功的血管内治疗具有重要意义。文章对液体衰减反转恢复序列血管高信号在接受血管内治疗的急性缺血性卒中患者中的应... 详细信息

血管内治疗已成为大血管闭塞所致急性缺血性卒中的标准治疗方法。应用神经影像学技术进行适当患者选择和转归预测对于成功的血管内治疗具有重要意义。文章对液体衰减反转恢复序列血管高信号在接受血管内治疗的急性缺血性卒中患者中的应用进展进行了综述。

关键词：缺血性卒中血管内手术血栓切除术磁共振成像侧支循环疾病严重程度指数治疗结果

Protein Phosphorylation Site Prediction via Feature Discovery Support Vector Machine

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Tsinghua Science and Technology 2012年第6期17卷 638-644页

作者： Yi Shi Bo Yuan guohui lin Dale Schuurmans Department of Computing Science University of Alberta Edmonton T6G 2E8 Canada Department of Computer Science Shanghai Jiao Tong University Shanghai 200240 China

Protein phosphorylation/dephosphorylation is the central mechanism of post-translational modification which regulates cellular responses and phenotypes. Due to the efficiency and resource constraints of the in vivo methods for identifying phosphorylation sites, there is a strong motivation to computationally predict potential phosphorylation sites. In this work, we propose to use a unique set of features to represent the peptides surrounding the amino acid sites of interest and use feature selection support vector machine to predict whether the serine/threonine sites are potentially phosphorylable, as well as selecting important features that may lead to phosphorylation. Experimental results indicate that the new features and the prediction method can more effectively predict protein phosphorylation sites than the existing state of the art methods. The features selected by our prediction model provide biological insights to the in vivo phosphorylation.

关键词： protein phosphorylation support vector machine sparse learning feature selection position-specificscoring matrix

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应急救援物资紧缺的两级配送路径选择研究

中国管理科学 2022年第8期30卷 155-163页

作者：苏兵周佳其 lin guohui 姬浩徐阳西安工业大学经济管理学院陕西西安710021 阿尔贝塔大学计算机科学系加拿大埃德蒙顿T6G 2E8 陕西省兵工科技创新发展软科学研究基地陕西西安710021

针对应急救援物资紧缺难以满足所有需求的情形,以单个需求点最大缺货量最小、车辆运输费用最小为双目标,建立从配送中心到分发点再到需求点的两级配送路径选择模型,设计复杂性为O(n~3)的近似算法GA进行求解,证明算法近似比的上下界并讨... 详细信息

针对应急救援物资紧缺难以满足所有需求的情形,以单个需求点最大缺货量最小、车辆运输费用最小为双目标,建立从配送中心到分发点再到需求点的两级配送路径选择模型,设计复杂性为O(n~3)的近似算法GA进行求解,证明算法近似比的上下界并讨论影响因素,用数值验证算法GA的近似比接近于1,表明算法GA具有较好的性能。最后以雅安灾区配送实例验证模型和算法的有效性。

关键词：两级配送路径近似算法应急救援物资配送优化

Decision Tree Complexity of Graph Propertieswith Dimension at Most5

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Journal of Computer Science & Technology 2000年第5期15卷 416-422页

作者：高随祥林国辉 MathematicsDepartment GraduateSchoolUniversityofScienceandTechnologyofChinaBeijing100039P.R.China DepartmentofComputerScience UniversityofWaterlooWaterlooCanada

A graph property is a set of graphs such that if the set contains some graph G then it also contains each isomorphic copy of G (with the same vertex set). A graph property P on n ventices is said to be elusive, if every decision tree algorithm recognizing P must examine all n(n - 1)/2 pairs of ventices in the worst case. Karp conjectured that every nontrivial monotone graph property is elusive. In this paper, this conjecture is proved for some cases. Especially,it is shown that if the abstract simplicial complex of a nontrivial monotone graph property P has dimension not exceeding 5, then P is elusive.

关键词： monotone graph property decision tree complexity elusive

TWO-LAYERED IMAGE COMPRESSION USING 2G BANDELETS AND WAVELETS

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Journal of Electronics(China) 2008年第4期25卷 552-555页

作者： Zhang Jun Lian lin Li guohui Dept of System Engineering National University of Defense Technology Changsha 410073 China

An image can be decomposed into the structural component and the geometric *** on this idea,an efficient two-layered compressing algorithm is proposed,which uses2nd generation bandelets and ***,an original image is decomposed into the structuralcomponent and the textural component,and then these two components are compressed using waveletsand 2nd generation bandelets *** tests show that the proposed method worksbetter than the bandelets and JPEG2000 in some specific SAR scene.

关键词：图像压缩小波分析全变差两层压缩算法

Highly ordered crystallization of α-FAPbl_(3) films via homogeneous seeds for efficient perovskite solar cells

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Journal of Energy Chemistry 2024年第7期94卷 625-634页

作者： guohui Luo linfeng Zhang Liyun Guo Xiuhong Geng Penghui Ren Yi Zhang Haihua Hu Xiaoping Wu lingbo Xu Ping lin Haiyan He Xuegong Yu Peng Wang Can Cui Key Laboratory of Optical Field Manipulation of Zhejiang Province Department of PhysicsZhejiang Sci-Tech UniversityHangzhou 310018ZhejiangChina Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology Zhejiang Sci-Tech UniversityHangzhou 310018ZhejiangChina Hangzhou City University Hangzhou 310015ZhejiangChina Key Laboratory of Solar Energy Utilization and Energy Saving Technology of Zhejiang Province Zhejiang Baima Lake Laboratory Co.Ltd.Hangzhou 310012ZhejiangChina State Key Laboratory of Silicon Materials and School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027ZhejiangChina

Formamidine lead triiodide(FAPbI_(3))perovskites have become the most promising photovoltaic materials for perovskite solar cells with record power conversion efficiency(PCE).However,random nucleation,phase transition,and lattice defects are still the key challenges limiting the quality of FAPbI_(3) *** studies show that the introduction or adding of seeds in the precursor is effective to promote the nucleation and crystallization of perovskite ***,the seed-assisted approach focuses on heterogeneous seeds or hetero-composites,which inevitably induce a lattice-mismatch,the genera-tion of strain or defects,and the phase segregation in the perovskite ***,we first demonstrate that high-quality perovskite films are controllably prepared using α-and δ-phases mixed FAPbI_(3) micro-crystal as the homogeneous seeds with the one-step antisolvent *** partially dissolved seeds with suitable sizes improve the crystallinity of the perovskite flm with preferable orientation,improved carrier lifetime,and increased carrier *** importantly,the α-phase-containing seeds promote the formation of α-phase FAPbI_(3) films,leading to the reduction of residual lattice strain and the suppres-sion of I-ion ***,the adding of dimethyl 2,6-pyridine dicarboxylate(DPD)into the pre-cursor further suppresses the generation of defects,contributing to the PCE of devices prepared in air ambient being significantly improved to 23.75%,among the highest PCEs for fully air-processed FAPbI_(3) solar *** unpackaged target devices possess a high stability,maintaining 80%of the initial PCE under simulated solar illumination exceeding 800 h.

关键词： Perovskite solar cells FAPbI_(3) Homogeneous seeds Strain Phase stability

EXACT　BOUNDS　OF　THE　MODIFIED　LPT　ALGORITHMS　APPLYING　TO　PARALLEL　MACHINES　SCHEDUlinG　WITH　NONSIMULTANEOUS　MACHINE　AVAILABLE　TIMES

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Applied Mathematics:A Journal of Chinese Universities 1997年第1期 111-118页

作者： lin guohui, HE YONG, YAO YUJUN AND LU HAIYAN

ＥＸＡＣＴＢＯＵＮＤＳＯＦＴＨＥＭＯＤＩＦＩＥＤＬＰＴＡＬＧＯＲＩＴＨＭＳＡＰＰＬＹＩＮＧＴＯＰＡＲＡＬＬＥＬＭＡＣＨＩＮＥＳＳＣＨＥＤＵＬＩＮＧＷＩＴＨＮＯＮＳＩＭＵＬＴＡＮＥＯＵＳＭＡＣＨＩＮＥＡＶＡＩＬＡＢＬＥ... 详细信息

ＥＸＡＣＴＢＯＵＮＤＳＯＦＴＨＥＭＯＤＩＦＩＥＤＬＰＴＡＬＧＯＲＩＴＨＭＳＡＰＰＬＹＩＮＧＴＯＰＡＲＡＬＬＥＬＭＡＣＨＩＮＥＳＳＣＨＥＤＵＬＩＮＧＷＩＴＨＮＯＮＳＩＭＵＬＴＡＮＥＯＵＳＭＡＣＨＩＮＥＡＶＡＩＬＡＢＬＥＴＩＭＥＳＬＩＮＧＵＯＨＵＩ，Ｈ...

关键词： LPT MODIFIED THE OF APPLYING ALGORITHMS

Application Value of NLR,PLR,LMR,HEART score,and POCT in Early Warning and Accurate Graded Diagnosis of High-Risk Chest Pain in Emergency Medicine

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Journal of Clinical and Nursing Research 2024年第4期8卷 93-98页

作者： Shaochang Ma Chunhua lin Yanmei Li Yan Chen guohui Zhang Guandu District People’s Hospital Kunming 650200Yunnan ProvinceChina Guanshang Street Health Service Center Guandu DistrictKunming 650200Yunnan ProvinceChina

Objective: To evaluate the application value of neutrophils/lymphocytes (NLR), platelets/lymphocytes (PLR), lymphocytes/monocytes (LMR), HEART (history, electrocardiogram, age, risk factors, and troponin) score, and point-of- care testing (POCT) in the early warning and precise diagnosis of high-risk chest pain in emergency medicine. Methods: A total of 157 patients with acute chest pain who were admitted to the emergency department and chest pain treatment unit of our hospital between August 2022 and September 2023 were selected. Rapid testing of bedside myocardial markers (ultrasensitive troponin (hs-cTnI), myoglobin (MYO), creatine kinase isoenzyme (CK-MB), D-dimer (D-Dimer), and N-terminal B-type natriuretic peptide precursor (NT-proBNP)) was performed on the patients using a POCT device (ThermoKing BioMQ60proB). A HEART score was used to classify the patients into low (n = 53), intermediate (n = 59), and high-risk (n = 45) groups, and the NLR, PLR, and LMR were calculated. The NLR, PLR, and LMR values were compared among the three groups of patients, and the optimal cutoff values as well as sensitivity and specificity were determined based on receiver operating characteristic (ROC) analysis. Results: The HEART scores of patients in the low-risk, intermediate-risk, and high-risk groups were (2.72 ± 0.24), (4.75 ± 0.56), and (5.32 ± 0.73) respectively, and the differences were statistically significant (P < 0.05). Compared with the low-risk group, the intermediate-risk group and high-risk group had a significantly higher NLR and PLR, and a significantly lower LMR;the high-risk group had higher NLR and PLR and lower values of LMR as compared to the other two groups, and the difference was statistically significant (P < 0.05). The ROC curves suggested that the area under the curve, sensitivity, and specificity of the combined diagnosis of NLR, PLR, LMR, HEART score, and POCT were greater than those of LR, PLR, and LMR with HEART score and POCT alone. Conclusion: Th

关键词： NLR PLR LMR POCT myocardial markers HEART score Emergency high-risk chest pain