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Ion sulphuration-an effective surface engineering technique for reducing friction and wear of rubbing-pairs

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中国有色金属学会会刊：英文版 2004年第z1期14卷 13-18页

作者： LIU Jia-jun WANG hai-dou zhang ning zhang Da-ming Department of Mechanical Engineering Tsinghua University Beijing 100084 China National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China Chinergy Co. Ltd. Beijing 100084 China Department of Mechanical Engineering Tsinghua University Beijing 100084 China

The low temperature ion sulphuration-an effective surface engineering technique for reducing friction and wear of rubbing-pairs was introduced. It involves the principle of ion sulphuration process, microstructure of FeS film on 1045 steel, tribological properties of FeS film on steels, microstructions and tribological properties of MoS2 and nano-FeS/MoS2 multi-layered films, as well as their applications.

关键词： solid lubrication low temperature ion sulphuration friction and wear surface engineering

Modified biplanar open-wedge high tibial osteotomy with rigid locking plate to treat varus knee

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第9期10卷 689-695页

作者： hai-ning zhang Jie zhang Cheng-yu LV Ping LENG Department of Joint Surgery the AffiliatedHospital School of Medicine Qingdao University Qingdao 266003 China Department of Endocrinology Weifang Traditional Medicine Hospital Weifang 261041 China

Objective： To introduce and characterize the modified biplanar opening high tibial osteotomy with rigid fixation to treat varus knee in young and active patients. Methods： Between June 2001 to July 2008, 18 patients with monocompartmental degeneration of the knee combined with a varus malalignment of the leg had the modified biplanar opening high tibial osteotomy and the osteotomy was fixed with the locking plates （Locking Compression Plate System）. The mean varus deformity before operation was 11.5° （5°- 19°） and no degenerative changes were found in other departments. Stability of the knee was normal in 15 patients, but ruptures in anterior cruciate ligaments or lateral collateral ligament were presented in the remaining 3 patients. Preoperative symptom was mainly limited in the pain of medial compartment. The preoperative and follow-up data for the range of motion and Lysholm score were determined. Subjective satisfactory examination was also applied to the patients for the operation they selected. Results： All of the patients were followed up with an average of 32.5 months （12-82 months）. There was no ununion or delayed union in this group during the follow-up period. No complications like broken plate, nerve injury, or blood vessel injury occurred. The postoperative average corrected degree was 9.5° （5.5°-18°）. No degenerations developed in the three departments of the knee. The Lysholm scores before and after surgery were 42.5 and 77.5, respectively （P〈0.01）. The overall fineness rate was 83.3%. The subjective satisfactory survey demonstrated that about 83.3% patients showed satisfactory on the operation. There was no obvious difference in the range of motion before and after operation, but significant changes were found in the Lysholm score and varus degree from preoperative to follow-up. Conclusion： Proximal opening high tibial osteotomy performed in conjunction with the special rigid locking plate yielded good results for symptomatic genu varum. This new cl

关键词： Osteotomy Varus Osteoarthritis Fixation

Coordination-driven self-assembly of a molecular 818knot and molecular borromean rings

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Science China Chemistry 2024年第11期67卷 3652-3656页

作者： Xiang Gao Dong Liu hai-ning zhang Guo-Xin Jin Department of Chemistry Fudan UniversityShanghai 200433China

We report the facile construction of a molecular 8_(18) knot and a molecular Borromean rings assembly through self-assembly directed by Cp^(*)Rh corner units. Two curved ligands of similar size and shape were used in this study. The slight steric differences between the two ligands induce the formation of distinctly different topologies of the assembled products. The structures were confirmed by single-crystal X-ray analysis and nuclear magnetic resonance spectroscopy.

关键词： coordination-driven Cp^(*)Rh 8_(18)knot Borromean rings

Stereoselective Self-Assembly of Chiral Metalla[2]Catenanes and Lemniscular Macrocycles

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CCS Chemistry 2024年第8期6卷 2000-2010页

作者： Shu-Jin Bao hai-ning zhang Guo-Xin Jin Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials State Key Laboratory of Molecular Engineering of PolymersDepartment of ChemistryFudan UniversityShanghai 200433

Designing and stereoselectively constructing chiral mechanically interlocked molecules(MIMs)is a goal that many chemists are pursuing due to their potential in the development of functional molecular machines involved in catalysis,sensing,and chiroptical ***,the synthesis of enantiopure supramolecular entities with crystallographic structures remains ***,the stereoselective self-assembly of chiral metalla[2]catenanes interlocked by two D-shaped macrocycles was realized by combining long binuclear half-sandwich organometallic Cp*Rh^(III)(Cp*=η^(5)-pentamethylcyclopentadienyl)clip and ditopic monodentate ligand incorporating L-leucine *** resulting metalla[2]catenane displayed unique co-conformational mechanical helical chirality characteristics arising from the chirality transfer of the chiral ***,decreasing the length of the binuclear Cp*Rh^(III)clip and adjusting the steric hindrance of the amino-acid side chains(L-alanine and L-phenylalanine)in the ligands resulted in two lemniscular macrocycles with left-handed(M)-twisted conformational *** the best of our knowledge,the synthesized macrocycles are the first family of homochiral abnormal lemniscate-shaped organometallic macrocycles featuring figure-eight ***[2]catenanes and macrocycles with opposite chirality were also generated by employing corresponding D-amino acid ligands,as evidenced by single-crystal X-ray diffraction,nuclear magnetic resonance,mass,and circular dichroism *** present study demonstrates that homochiral MIMs can be accessed readily using amino acid–containing ligands through rational molecular design.

关键词： stereoselective synthesis chirality metallacatenanes twisted macrocycles aminoacid residues

Selective Construction of Borromean Rings and Tweezer-Like Molecular Assembly Featuring Cp^(*)Rh/Ir Clips for Near-Infrared Photothermal Conversion

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Chinese Journal of Chemistry 2023年第23期41卷 3229-3237页

作者： Yan Zou hai-ning zhang Qiu-Shui Mu Li-Long Dang Guo-Xin Jin Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsState Key Laboratory of Molecular Engineering of PolymersFudan UniversityShanghai200438 China College of Chemistry and Chemical Engineering Luoyang Normal UniversityHenan Province Function-Oriented Porous Materials Key LaboratoryLuoyangHenan471934 China

Making full use of coordination-driven self-assembly strategy,we herein described the selective synthesis of a molecular Borromean rings and two cases of “U”-shaped tweezer-like molecular assemblies in high yield by using bipyridyl ligands based on biphenyl unit and half-sandwich binuclear rhodium(III)/iridium(III) building *** selective synthesis was realized by adjusting the length of dipyridyl *** utilization of curved U-shaped bipyridyl ligand L1 led to tweezer-like molecular ***,olefinic bonds were introduced to elongate dipyridyl arms obtaining ligand *** ligand L2 has two stable conformations,U-shape and Z-shape,which facilitated the formation of different topologies including the tetranuclear macrocycle and Borromean rings with different building blocks in this *** structures in solid and solution all have been further confirmed by single-crystal X-ray diffraction,NMR analysis,and mass *** addition,as an important driving force,π-π stacking interactions not only played a significant role in the stability of structures but also further triggered photothermal conversion in *** experimental results demonstrated that compounds 1a and 2 had good NIR photothermal conversion efficiency (11.83% and 17.76%),and further analysis found the photothermal conversion efficiency had a gradual increase in the trend with the π-π stacking interactions *** research expands the application of topological structures in materials science and provides a new idea for the synthesis of novel photothermal conversion materials.

关键词： Self-assembly π-πstacking interaction Half-sandwich Cp*Rh/Ir Rhodium Iridium Borromean rings and Tweezer-like molecular assembly Near-infrared photothermal conversion

Synthesis of Schiff Base Type Macrocycles Containing Naphthalene Ring

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Chinese Chemical Letters 1997年第7期8卷 569-572页

作者： Chang Rong NIU hai ning zhang Cheng Tai WU(Department of Chemistry, Wuhan University, Wuhan 430072) WUHAN UNIV DEPT CHEMWUHAN 430072PEOPLES R CHINA

A series of new Schiff base type macrocyclic crown ethers containing naphthalene ring were synthesized from 2,2'-di(o-formylnaphthoxy) ethyl ether or 1,2-di(o-formylnaphthoxy) ethane and four appropriate diamines. The chemical structures of the new compounds were characterized by elemental analysis, infrared spectra, nuclear magnetic resonance spectra and mass spectrometry.

关键词： OCH IR cm KBr HNMR Synthesis of Schiff Base Type Macrocycles Containing Naphthalene Ring

Thymic lipofibroadenomas:Three case reports

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World Journal of Clinical Cases 2023年第1期11卷 164-171页

作者： Mai-Qing Yang Zhi-Qiang Wang Li-Qian Chen Su-Mei Gao Xing-ning Fu hai-ning zhang Ke-Xin zhang Hong-Tao Xu Department of Pathology Weifang People's Hospital(First Affiliated Hospital of Weifang Medical University)Weifang 261041Shandong ProvinceChina Department of Orthopedics and Trauma Weifang People's Hospital(First Affiliated Hospital of Weifang Medical University)Weifang 261041Shandong ProvinceChina Department of Pathology The First Hospital and College of Basic Medical Sciences of China Medical UniversityShenyang 110001Liaoning ProvinceChina

BACKGROUND Thymic lipofibroadenomas are extremely *** this study,we investigated the clinicopathological characteristics of thymic *** SUMMARY This study included three patients with thymic *** retrospectively analyzed the patient data to determine the clinicopathological characteristics of thymic *** study included one man and two women[mean age,43(33–59)years].All patients were non-smokers and presented with well-defined anterior mediastinal *** cut surfaces of the tumors were solid,with a mixture of yellow and white *** evaluation of resected specimens showed scattered cord-like structures of epithelial cells embedded within abundant fibrotic and hyaline stroma admixed with variable quantities of adipose *** patient showed hyperplastic thymic tissue in a part of the *** Thymic lipofibroadenomas are an extremely rare type of benign thymic *** removal of lipofibroadenomas is usually curative.

关键词： Lipofibroadenoma Thymoma Rare thymic tumor Clinicopathological characteristics Thoracic tumor Case report

Primary pulmonary meningioma and minute pulmonary meningothelial-like nodules: Rare pulmonary nodular lesions requiring more awareness in clinical practice

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World Journal of Clinical Cases 2024年第11期12卷 1857-1862页

作者： Li-Dan Liu Ke-Xin zhang hai-ning zhang Yi-Wen Zheng Hong-Tao Xu Department of Pathology The First Hospital and College of Basic Medical Sciences of China Medical UniversityShenyang 110001Liaoning ProvinceChina

In this editorial,we comment on an article by Ruan et al published in a recent issue of the World Journal of Clinical *** meningothelial proliferative lesions,including primary pulmonary meningiomas,minute pulmonary meningothelial-like nodules,and metastatic pulmonary meningiomas are rare pulmonary *** lesions are difficult to differentiate from lung cancers based on clinical and imaging ***,we briefly introduce the clinical,imaging,and pathological characteristics of these lesions and discuss their pathogenesis to strengthen the current understanding of pulmonary meningothelial proliferative lesions in clinical diagnosis and therapy.

关键词： Pulmonary meningothelial proliferation Primary pulmonary meningioma Minute pulmonary meningothelial-like nodule Lung neoplasm Rare pulmonary nodular lesion

Classification of underwater still objects based on multi-field features and SVM

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Journal of Marine Science and Application 2007年第1期6卷 36-40页

作者： TIAN Jie XUE Shan-hua HUANG hai-ning zhang Chun-hua Institute of Acoustics Chinese Academy of Sciences Beijing 100080 China

A Support Vector Machine is used as a classifier to the automatic detection and recognition of underwater still objects. Discrimination between the objects can be transferred into different projection spaces by the process of multi-field feature extraction. The multi-field feature vector includes time-domain, spectral, time-frequency distribution and bi-spectral features. Underwater target recognition can be considered as a problem of small sample recognition. SVM algorithm is appropriate to this kind of problems because of its outstanding generalizability. The SVM is contrasted with a Gaussian classifier and a k-nearest classifier in some experiments using real data of lake or sea trial. The experimental results indicate that SVM is better than the others two.

关键词： underwater still objects classification feature support vector machine (SVM)