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Direct electrodeposition of ionic liquid-based template-free Sn Co alloy nanowires as an anode for li-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2018年第9期25卷 1027-1034页

作者： Le-ping Wang Gang Chen Qi-xin Shen Guo-min li shi-you Guan Bing li School of Materials science and Engineering East China University of Science and Technology Institute for Sustainable Energy Shanghai University

Sn Co alloy nanowires were successfully electrodeposited from Sn Cl2-Co Cl2-1-ethyl-3-methylimidazolium chloride(EMIC) ionic liquid without a template. The nanowires were obtained from the molar ratio of 5:40:60 for Sn Cl2(25)Co Cl2(25)EMIC at-0.55 V and showed a minimum diameter of about 50 nm and lengths of over 20 μm. The as-fabricated SnCo nanowires were about 70 nm in diameter and featured a Sn/Co weight ratio of 3.85:1, when used as an anode for a li-ion battery, they presented respective specific capacities of 687 and 678 m Ah·g^(-1) after the first charge and discharge cycle and maintained capacities of about 654 m Ah·g^(-1) after 60 cycles and 539 m Ah·g^(-1) after 80 cycles at a current density of 300 m A·g^(-1). Both the nanowire structure and presence of elemental Co helped buffer large volume changes in the Sn anode during charging and discharging to a certain extent, thereby improving the cycling performance of the Sn anode.

关键词： SnCo alloy nanowires template electrodeposition ionic liquid

Zircon U-Pb Ages of Tonalite in Faku,liaoning Province,China,and the Early Paleozoic Magmatic Activity in the North Margin of the North China Craton

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Acta Geologica Sinica(English Edition) 2019年第2期93卷 489-490页

作者： shi Yiu ZHANG Zhibin YANG Fan li Dongtao shi Shaoshan ZHAO Chunqiang you Hongxi Shenyang Institute of Geology and Mineral Resources China Geological Survey College of Earth Sciences Jilin University

Objective Due to the Meso-Cenozoic Songliao Basin coverage,the Early Paleozoic continental-margin accretionary belt has not been detected in the middle of the north margin of the North China Craton (liu et al., 2017a,... 详细信息

关键词： Pb SHRIMP Magmatic Activity

Syntheses, Structures and Interactions with DNA of Two in situ Generated Palladium(Ⅱ) Complexes

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Chinese Journal of Structural Chemistry 2015年第8期34卷 1238-1246页

作者： you li-Xin li Jin-shi XIONG Gang WANG Shu-Ju SUN Ya-Guang Laboratory of Coordination Chemistry Shenyang University of Chemical Technology

Two new complexes [Pd（L-phe）2·2H2O] （1） and [Pd（4,4＇-dcbpy）（en）·H2O] （2）（L-phe = L-phenylalanine, 4,4＇-dcbpy = 2,2＇-bipyridyl-4,4＇-dicarboxylate, en = ethylenediamine） were synthesized and characterized. L-phenylalanine was in situ formed via the hydrolysis of N-（tert-butoxycarbonyl）-L-phenylalanine, and ethylenediamine came from the in situ reaction of piperazine （pip） under hydrothermal conditions. The single-crystal X-ray structure analyses reveal that the Pd（Ⅱ） ion constructs a square planer coordination geometry in complexes 1 and 2, respectively. Complex 1 extends into a 2D layered structure via H-bond interactions and complex 2 connects into a 3D network through hydrogen bonds and 7r-tr stacking interactions. The interactions of 1 and 2 with fish sperm DNA （FS-DNA） were examined via UV-Vis absorption spectra and fluorescence spectroscopy. The cleavage reaction for plasmid DNA has been assayed by agarose gel electrophoresis. The results indicate that two complexes interact with DNA and the insertion is the main binding mode.

关键词： crystal structure Pd(II) complex in situ reaction L-phenylalanine,

Phase I Study to Determine MTD of Docetaxel and Cisplatin with Concurrent Radiation Therapy for Stage Ⅲ Non-Small Cell Lung Cancer

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Chinese Journal of Cancer Research 2011年第2期23卷 129-133页

作者： you-quan li An-hui shi Fu-hai li Rong Yu Guang-ying Zhu Key Laboratory of Carcinogenesis and Translational Research （Ministry of Education） Department of Radiation Oncology Peking University School of Oncology Beijing Cancer Hospital ＆ Institute Beijing 100142 China

Objective： To evaluate the maximum tolerated dose （MTD） of docetaxel （DCT） and cisplatin （DDP） concurrently with three dimensional （3D） conformal radiotherapy or IMRT for patients with locally advanced non-small cell lung cancer （stage IIIa and IIIb） after 2–4 cycles of induction chemotherapy. Methods： Fourteen patients with histological/cytological proven stage III non–small-cell lung cancer were eligible. 3D or IMRT radiotherapy （60-70Gy in 30-35 fractions, 6-7weeks, 2 Gy/fraction） was delivered concurrently with cisplatin and docetaxel, 2 cycles during concurrent chemoradiotherapy （CCRT）. The level I dosage was composed of 56 mg/m2 DCT, on day 1 and 28mg/m2 DDP, on day 1 and day 2. The level II was composed of 60 mg/m2 DCT, on day 1 and 30 mg/ m2 DDP, on day 1 and day 2. The level III was composed of 64 mg/m2 DCT, on day 1 and 32 mg/ m2 DDP, on day 1 and day 2. Results： Fourteen patients were allocated and finished concurrent chemoradiotherapy. The dose-limiting neutropenia was at the dose Level III （64 mg/m2） and occurred in 2 of 5 patients. No dose limiting non-hematologic or hematologic toxicity occurred in the other patients. Conclusions： Patients with locally advanced non-small cell lung cancer may tolerate 60mg/m2 docetaxel and 60mg/m2 cisplatin for 2 cycles during concurrent radiotherapy after 2-3 cycles of induction chemotherapy.

关键词： Non–small-cell lung cancer Concurrent chemoradiotherapy Cisplatin docetaxel Toxicity

Photographic Appearance Enhancement via Detail-Based Dictionary Learning

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Journal of Computer Science & Technology 2017年第3期32卷 417-429页

作者： Zhi-Feng Xie shi Tang Dong-Jin Huang you-Dong Ding li-Zhuang Ma Department of Film and Television Engineering Shanghai University Shanghai 200072 China Shanghai Engineering Research Center of Motion Picture Special Effects Shanghai 200072 China Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

A number of edge-aware filters can efficiently boost the appearance of an image by detail decomposition and enhancement. However, they often fail to produce photographic enhanced appearance due to some visible artifacts, especially noise, halos and unnatural contrast. The essential reason is that the guidance and the constraint of high-quality appearance are not sufficient enough in the process of enhancement. Thus our idea is to train a detail dictionary from a lot of high-quality patches in order to constrain and control the entire appearance enhancement. In this paper, we propose a novel learning-based enhancement method for photographic appearance, which includes two main stages： dictionary training and sparse reconstruction. In the training stage, we construct a training set of detail patches extracted from some high-quality photos, and then train an overcomplete detail dictionary by iteratively minimizing an？1-norm energy function. In the reconstruction stage, we employ the trained dictionary to reconstruct the boosted detail layer, and further formalize a gradient-guided optimization function to improve the local coherence between patches. Moreover, we propose two evaluation metrics to measure the performance of appearance enhancement. The final experimental results have demonstrated the effectiveness of our learning-based enhancement method.

关键词： image enhancement dictionary learning edge-aware filter

A Synchrotron in situ X-ray Study on the Multiple Melting Behaviors of Isomorphous Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)(P(HB-co-HV))with Middle HV Content

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Chinese Journal of Polymer Science 2020年第9期38卷 1015-1024,I0008页

作者： Hao Zhu you Lv Dan shi Yi-Guo li Wei-Jun Miao Zong-Bao Wang Ningbo Key Laboratory of Specialty Polymers State Key Laboratory Base of Novel Functional Materials and Preparation ScienceFaculty of Materials Science and Chemical EngineeringNingbo UniversityNingbo 315211China

The multiple endothermic peaks without observable recrystallization phenomenon of isomorphous poly(3-hydroxybutyrate-co-3-hydroxyvalerate)[P(HB-co-HV)]with the middle HV content of 19.4 mol%and 28.7 mol%were confirmed by differential scanning calorimetry(DSC),and the evolutions of crystal structure and lamellar morphology in the heating and melting process were tracked by in situ synchrotron wide angle X-ray diffraction(WAXD)and small angle X-ray scattering(SAXS)*** emergence of asymmetric features of both the diffraction peaks and scattering curves indicates the coexistence of different lamellar crystals with varied unit cell *** on the in situ WAXD and SAXS measurements,we calculated the evolutions of the unit cell parameters a and b as well as the long period and lamellar thickness upon *** comparative analysis of WAXD and SAXS data confirms that the multiple endothermic peaks of P(HB-co-19.4%HV)and P(HB-co-28.7%HV)result from the melting of different lamellae rather than the melting/*** thinner,unstable uniform lamellae with HV counits total inclusion melt first and the thicker,stable sandwich lamellae with HV counits partial inclusion melt *** addition,the large second melting peak in P(H B-co-19.4%HV),differing from that of samples with HV content of 28.7 mol%and 36.2 mol%,is due to the unique state of HV content leading to a transition of sandwich lamellae to uniform *** present study establishes the relationship between the different lamellae structure and multiple melting behaviors of isomorphous copolymer.

关键词： P(HB-co-HV) Isomorphous Middle HV content Synchrotron radiation

Novel hot-melting hyperbranched poly(ester-amine) bearing self-complementary quadruple hydrogen bonding units

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Chinese Chemical Letters 2008年第7期19卷 868-870页

作者： Yi Peng Qiu li Ming Tang Yu Wang shi you Guan Laboratory of Advanced Materials Department of Chemical Engineering Tsinghua University Beijing 100084 PR China Sanyo Chemical Industries LTD. Kyoto 605-0995 Japan

Hyperbranched poly（amine-ester）s bearing self-complementary quadruple hydrogen bonding units display excellent mechanical and temperature-dependent melt rheological properties, which make them suitable as novel hot-... 详细信息

关键词： Hyperbranched polymer Thermal sensitive Hydrogen bond

Solvent Effect of DMSO-d_6 on 1,2-Diols in ~1H NMR

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Chemical Research in Chinese Universities 2005年第6期21卷 761-762页

作者： li Ting-you JIANG Shui-shi WANG Zong-mu College of Chemistry Jilin University Changchun 130021 P. R. China Department of Medicinal Pharmacology Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama University Okayama 700-8530 Japan College of life Sciences Jilin University Changchun 130021 P. R. China

There is a classic experiential rule about 1,2-diol RCR^1 （OH） CR^1 （OH） R（ R^1 = H or methyl）, that is, the proton chemical shift of the α-R^1 group at the hydroxvl group in the all-isomer, in general, aPPears... 详细信息

关键词： 1,2-Diol, ^1H NMR α-H atom X-ray crystallography

Optimized strategy of rotational atherectomy of underexpanded coronary stents in patients with acute coronary syndrome

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World Journal of Emergency Medicine 2021年第3期12卷 198-201页

作者： Kun Cui you-quan shi Yuan-zheng Zhang Zheng-gong li Chang-ling li Department of Cardiology Chongqing General HospitalChongqing 400013China Department of Cardiology the Third People’s Hospital of Xinjiang Uygur Autonomous RegionUrumqi 830000China Department of Cardiology the First People’s Hospital of TianshuiTianshui 741000China Department of Cardiology the Second Affi liated Hospital of Zhejiang University School of MedicineHangzhou 310009China

BACKGROUND:Stent under-expansion is a main cause of acute coronary syndrome(ACS),which can lead to serious clinical *** rotational atherectomy of underexpanded coronary stents(academically called stent ablation,SA)by intravascular ultrasound(IVUS)may provide more visual reference in the *** aim to analyze the procedural and long-term outcomes of the optimized strategy of SA in patients with ACS and to provide real-world data on this ***:A total of 11 patients with ACS who underwent SA between April 2017 and January 2019 were *** follow-ups were obtained either by telephone call or by scheduled *** end-points included periprocedural and postprocedural myocardial infarction,stent thrombosis,target lesion revascularization,and major adverse cardiac ***:The mean age of patients was 69.6±6.5 years,and five(45.5%)patients were *** cases presented with unstable angina and were admitted with *** patients required at least two burrs during the intervention and the size of the burr was selected based on the data of minimum lumen diameter(MLD),and the fi rst and the second burr/stent MLD ratios were 0.93(0.88-0.99)and 1.09(1.02-1.14),*** patients were treated with drug-eluting stents and two were treated with drug-coated *** were no complications including no fl ow,perforation,or burr entrapment during the *** in-hospital deaths or major adverse cardiac events were documented during the follow-up *** our study,less contrast agent and a lower dose of radiation were used during the ***:SA guided by IVUS can reduce the risk of complications,assess the results of surgery,inform the selection of stent size,and decrease the required dose of radiation and contrast.

关键词： Acute coronary syndrome Intravascular ultrasound Rotational atherectomy Underexpanded stent