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Novel Approach to Minimize the Memory Requirements of Frequent Subgraph Mining Techniques

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Chinese Journal of Electronics 2021年第2期30卷 258-267页

作者： B?lg?N Turgay Tugay O?UZ Murat Department of Computer Engineering Bursa Technical University Microsoft Corporation Turkey Branch

Frequent subgraph mining(FSM) is a subset of the graph mining domain that is extensively used for graph classification and clustering. Over the past decade, many efficient FSM algorithms have been developed with improvements generally focused on reducing the time complexity by changing the algorithm structure or using parallel programming techniques. FSM algorithms also require high memory consumption, which is another problem that should be solved. In this paper, we propose a new approach called Predictive dynamic sized structure packing(PDSSP) to minimize the memory needs of FSM algorithms. Our approach redesigns the internal data structures of FSM algorithms without making algorithmic modifications. PDSSP offers two contributions. The first is the Dynamic Sized Integer Type, a newly designed unsigned integer data type, and the second is a data structure packing technique to change the behavior of the compiler. We examined the effectiveness and efficiency of the PDSSP approach by experimentally embedding it into two state-of-the-art algorithms, g Span and *** compared our implementations to the performance of the originals. Nearly all results show that our proposed implementation consumes less memory at each support level, suggesting that PDSSP extensions could save memory, with peak memory usage decreasing up to 38% depending on the dataset.

关键词： File organisation Data handling techniques Combinatorial mathematics Frequent Subgraphs Data Mining Memory Space Complexity

Discovery and significance of Xucun late Proterozoic composite dike swarm in southern Anhui Province

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Chinese Science Bulletin 1997年第4期42卷 328-330页

作者： Tang, HF Zhou, XM Zhi, lg Department of Earth Sciences Nanjing University Nanjing China No. 332 Geological Party Bureau of Geology and Mineral Resources of Anhui Province Huangshan China

GEOLOGICALLY, southern Anhui Province, East China, is a part of late Proterozoic collision orogens of the southeast margin of the Yangtze Block. In this region the development of late Proterozoic Fuchuan ophiolite suite and collision granitoids of Xiuning, Xucun and Shexian mark the existence of the intensely tectonic-magmatic events. Recently discovered Xucun

关键词： late Proterozoic composite dike swarm southern Anhui Province.

Guided lithium nucleation and growth on lithiophilic tin-decorated copper substrate

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Journal of Energy Chemistry 2022年第11期31卷 412-419,I0011页

作者： Lang Ye Chengyi Zhang Yin Zhou BurakÜlgüt Yan Zhao Jiangfeng Qian Hubei Key Laboratory of Electrochemical Power Sources College of Chemistry and Molecular SciencesWuhan UniversityWuhan 430072HubeiChina Institute of Technological Sciences Wuhan UniversityWuhan 430072HubeiChina Faculty of Science Department of ChemistryBilkent UniversityAnkara 06800Turkey

Lithium metal is the ultimate anode choice for high energy rechargeable lithium batteries owing to its ultra-high theoretical capacity,however,Li dendrites and low Coulombic efficiency(CE)caused by disordered Li plating restrict its practical ***,we develop an ultrathin Sn-decorated Cu substrate(Sn@Cu)fabricated by an electroless plating method to induce ordered Li nucleation and growth *** lithiophilic Sn interfacial layer is found to play a critical role to lower the Li nucleation over-potential and promote fast Li-migration kinetics,and the underlying mechanism is revealed using the first principle ***,a dense dendrite-free and Li deposition with large granular morphology is obtained,which significantly improved the CE and cycling performance of Li‖Sn@Cu half cells symmetric *** cells using the Li-Sn@Cu electrode display a much-prolonged life span(>1200 h)with low overpotential(~18 mV)at a high current density of 1 mA cm^(-2).Moreover,full cells paired with commercial LiFePO_(4) cathode(1.8 mAh cm^(-2))deliver enhanced cycling stability(0.5 C,300 cycles)and excellent rate *** work provides a simple and effective way to bring about high efficiency and long lifespan substrates for practical applications.

关键词： Lithium metal anode Lithiophilic tin modification Electroless tin plating Nucleation and growth Li migration kinetics First-principles calculations

STUDIES　ON　CHIRAL　THIOPHOSPHORIC　ACIDS　AND　THEIR　DERIVATIVES　***　ASYMMETRIC　CYCLIZATION　OF　（＋）－SUBSTITUTED　CYCLOPENTANODIAMINE　WITH　O－ARYL　THIOPHOSPHOROCHLORIDATES

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Chinese Chemical Letters 1996年第3期7卷 205-206页

作者： Tang, CC Lang, HF Wu, lg He, ZJ Chen, RY NANKAI UNIV INST ELEMENTOORGAN CHEMTIANJIN 300071PEOPLES R CHINA

The cyclizations of (+) -cis-1, 2, 2-trimethyl-l,3-diaminocyclopentrie 1derived from D-camphor with O-arylthiophosphorochloridates 2 give products, (+)-2,4,3-diazaphospha-bicyclo [3,2, 1] octane 3, containing two unequal amounts of diastereoisomers,a pair of which (R=OEt) has been successfully separated by silica gel columnchromatography.

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Involvement of heterotrimeric G protein in signal transduc-tion of extracellular calmodu-lin in regulating rbcS expression

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Chinese Science Bulletin 2001年第9期46卷 761-765页

作者： Guo, Y Ma, lg Zhang, L Sun, DY Hebei Normal Univ Inst Mol Cell Biol Shijiazhuang 050016 Peoples R China

The role of heterotrimeric G protein in signal transduction pathway of extracellular calmodulin in regulating rbcS expression was examined in suspension-cultured cells of transgenic tobacco. Pharmalogical experiments indicated that G protein agonist cholera toxin enhanced rbcS expression and heterotrimeric G protein antagonist pertussis toxin inhibited rbcS expression in transgenic tobacco cells. Pertussis toxin also inhibited the enhancement effect caused by exogenous purified calmodulin on rbcS expression, whereas cholera toxin completely reversed the inhibitory effects caused by anti-calmodulin serum on rbcS expression. The right side-out vesicles from tobacco cell membrane were purified, which contained all of substrates for fluometric assay of GTPase activity. Exogenous purified calmodulin, when adding directly to the medium of plasma membrane vesicles, significantly activated GTPase activity in the right side-out plasma membrane vesicles, and this increase in GTPase activity was completely

关键词： extracellular calmodulin heterotrimeric G proteins rbcS expression.

Characteristics of atmospheric oscillation in the Prydz Bay region during the ozone hole period in 1993

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Chinese Science Bulletin 1997年第10期42卷 842-845页

作者： Lu, LH Zhou, XJ Bian, lg Zhang, XQ Zheng, XD Chinese Academy of Meteorological Sciences Beijing China

IN ref.[1],a preliminary analysis was reported on the change characteristics of total ozoneduring the Antarctic'ozone hole'period in 1993,revealing that there is a very obvious dailychange of total ozone over Zhongshan Station and suggesting that this change would be relatedto the position of Zhongshan Station on the rim of the ozone hole influenced by the polar vortexvacillation and the expanding and contracting processes in Antarctic *** this note,

关键词： Antarctic Prvdz Bay ozone hole atmospheric oscillation.

Effect of Vetiver Grass Root on the Shear Strength of Completely Decomposed Volcanic Tuff and Pull-out Resistance of the Root

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Effect of Vetiver Grass Root on the Shear Strength of Comple...

PROTEOMICS IN DEFINING PATHOGENIC MECHANISMS OF GLAUCOMATOUS NEURODEGENERATION

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： lg THAM PKK LEE Department of Civil Engineering The University of Hong Kong Department of Civil Engineering The University of Hong Kong

The effects of vetiver grass roots on the strength of completely decomposed volcanic tuff and the pull-out resistance of the grass roots were *** the investigation,vetiver grass was planted on a steep cut slope in the Kardoorie Research Institute - Shek Kong Centre and allowed to grow under ’natural’ conditions for eighteen *** samples,both rooted and un-rooted,were then retrieved and the shear strengths of the samples were determined so that comparison on the strengths can be *** test results show that the friction angle and cohesion remain nearly *** pull-out resistance of the grass roots as determined by in-situ pull-out test varies from 1 kN to 2.5 kN,depending on the root system and the failure pattern.

关键词： Shear Strength Pull-out Resistance Vetiver Crass Roots Enforcement

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PROTEOMICS IN DEFINING PATHOGENIC MECHANISMS OF GLAUCOMATOUS...

Magnetic resonance imaging in breast cancer:A literature review and future perspectives

第十八届国际眼科研究大会

作者： Gülgün.Teze University of Louisville

＜正＞Given that the identification of alterations in the cellular protein complement can help to understand impaired cellular mechanisms,proteomics provides a unique experimental tool to elucidate pathogenic mechanisms associated with glaucomatoos neurodegeneration and identifies biomarkers and new treatment *** presentation will summarize the

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World Journal of Clinical Oncology 2014年第2期5卷 61-70页

作者： Gisela lg Menezes Floor M Knuttel Bertine L Stehouwer Ruud M Pijnappel Maurice AAJ van den Bosch Department of Radiology and Nuclear Medicine University Medical Centre Utrecht

Early detection and diagnosis of breast cancer are essential for successful treatment. Currently mammography and ultrasound are the basic imaging techniques for the detection and localization of breast tumors. The low sensitivity and specificity of these imaging tools resulted in a demand for new imaging modalities and breast magnetic resonance imaging(MRI) has become increasingly important in the detection and delineation of breast cancer in daily practice. However, the clinical benefits of the use of pre-operative MRI in women with newly diagnosed breast cancer is still a matter of debate. The main additional diagnostic value of MRI relies on specific situations such as detecting multifocal, multicentric or contralateral disease unrecognized on conventional assessment(particularly in patients diagnosed with invasive lobular carcinoma), assessing the response to neoadjuvant chemotherapy, detection of cancer in dense breast tissue, recognition of an occult primary breast cancer in patients presenting with cancer metastasis in axillary lymph nodes, among others. Nevertheless, the development of new MRI technolo-gies such as diffusion-weighted imaging, proton spectroscopy and higher field strength 7.0 T imaging offer a new perspective in providing additional information in breast abnormalities. We conducted an expert literature review on the value of breast MRI in diagnosing and staging breast cancer, as well as the future potentials of new MRI technologies.

关键词： Breast magnetic resonance imaging Cancer Diffusion-weighted imaging Spectroscopy 7.0 tesla