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Fabrication and compressive behavior of open-cell aluminum foams via infiltration casting using spherical CaCl_(2) space-holders

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China Foundry 2022年第2期19卷 89-98页

作者： Tan Wan Gang-qiang Liang zhao-ming wang Can-xu Zhou Yuan Liu School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology Tsinghua UniversityBeijing 100084China

The infiltration casting fabrication process based on spherical CaCl_(2) space-holders and the compressive behavior including the mechanical performance and energy absorption capacity of open-cell aluminum foams were ***-cell aluminum foams with different porosities in the range of 63.1%to 87.3%can be fabricated by adjusting compression ratios of CaCl_(2) preforms prepared by precision *** compression tests show that a strain-hardening phenomenon always occurs especially for open-cell aluminum foam with low porosity,resulting in the inclining stress-strain curve in the plateau *** energy absorption capacity of open-cell aluminum foam decreases with increasing porosity when compared at the same ***,when compared at a given stress,each foam can absorb the maximal energy among the five foams in a special stress ***,open-cell aluminum foam possesses the maximum energy absorption efficiency at its optimum operating *** this stress condition,the foam can absorb the highest energy compared with other foams at the same stress *** optimum operating stress and the corresponding maximal energy absorption decrease with increasing the *** optimum operating stress for energy absorption can also be determined similarly when taking into consideration of the lightweight extent of foams.

关键词： open-cell aluminum foam CaCl_(2)space-holder infiltration casting energy absorption

Synthesis and Antioxidant Activity of Sapriparaquinone Analogues

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Chinese Chemical Letters 2006年第9期17卷 1177-1180页

作者： Fei DENG Fu Jun ZHANG ming zhao Yi Ping wang Jin Sheng ZHANG State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 201203

Twenty two sapriparaquinone derivatives were synthesized and their antioxidant activities were evaluated in vitro. Many of this kind of compounds demonstrated potent antioxidant activity against lipid peroxidation, especially compound 7 （IC50 = 3.7 μg/mL）. The preliminary structure-activity relationship of sapriparaquinone derivatives was discussed.

关键词： Synthesis sapriparaquinone antioxidant activity.

Re-recognition of BMPR1A-related polyposis:beyond juvenile polyposis and hereditary mixed polyposis syndrome

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Gastroenterology Report 2023年第1期11卷 209-215页

作者： Zi-Ye zhao Ye Lei zhao-ming wang Huan Han Jun-Jie Xing Xiao-Dong Xu Xian-Hua Gao Wei Zhang En-Da Yu Department of Colorectal Surgery and Hereditary Colorectal Cancer Registry Changhai HospitalShanghaiP.R.China Department of General Surgery Eastern Theater Naval Hospital of Chinese PLAZhoushanZhejiangP.R.China Department of Pathology Changhai HospitalShanghaiP.R.China

Background Bone morphogenetic protein receptor type 1A(BMPR1A)is responsible for two individual Mendelian diseases:juvenile polyposis syndrome and hereditary mixed polyposis syndrome 2,which have overlapping *** study aimed to elucidate whether these two syndromes are just two subtypes of a single syndrome rather than two isolated *** We sequenced the BMPR1A gene in 186 patients with polyposis and colorectal cancer,and evaluated the clinicopathological features and phenotypes of the probands and their available relatives with BMPR1A *** BMPR1A germline mutations were found in six probands and their three available *** numbers of frameshift,nonsense,splice-site,andmissensemutations were one,one,two,and two,respectively;two of the sixmutations were *** juvenile polyps were found in only three *** patients had colorectal cancer rather than any *** Diseases in BMPR1A germline mutation carriers vary from mixed polyposis to sole colorectal cancer,and typical juvenile polyps do not always occur in these *** variety of phenotypes reflected the features of BMPR1Amutation carriers,which should be recognized as a spectrum of one *** testing may be a good approach to identifying BMPR1A-related syndromes.

关键词： BMPR1A gene juvenile polyposis syndrome hereditary mixed polyposis syndrome hamartoma polyposis

Novel hybrids of Cu^(2+) ternary complexes of salicylidene-amino acid Schiff base with phenanthroline(or bipyridine) intercalated in Mg/Al-NO_3-layered double hydroxide

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Chinese Chemical Letters 2013年第7期24卷 593-596页

作者： ming-zhao wang Ying Li Jin-Jin Ji Gai-Ling Huang Xin Zhang Si-Hui Li Xiao-Jing Yang College of Chemistry Beijing Normal University

Four Cu2＋ complexes of salicylidene-amino acid Schiff base with 1,10-phenanthroline （Phen） or 2,2＇- bipyridine （Bipy） were successfully intercalated in interlayer galleries of Mg/AI-NO3-1ayered double hydroxide （LDH） by the swelling-restored method. The hybrids were characterized by elemental analysis, X-ray diffraction, FT-IR spectra, UV-vis DRS, TG-DTA and SEM observation. Good protection of the complexes by LDH in neutral and weak acidic solutions was revealed by UV spectra, cyclic voltammograms and luminescence spectra.

关键词： Layered double hydroxides Ternary copper complexes Intercalation Characterization Stability in solution

CRYSTAL STRUCTURE OF BINUCLEAR Y(Ⅲ) COMPLEX WITH p-METHYLBENZOIC ACID, Y_2(p-CH_3C_6H_4COO)_6(C_(12)H_8N_2)_2

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Chinese Chemical Letters 1991年第11期2卷 861-862页

作者： Rui Fen wang Lin Pei JIN ming zhao wang Guan Liang CAI Shi Xiong LIU Jin Ling HUANG Department of Chemistry Eebei Normal CollegeShijiazhuang050000 Department of Chemistry Beijing Normal UniversityBeijing100875 Department of Chemistry Fuzhou UniversityFuzhou350002

Y_2(p-CH_3C_6H_4COO)_6(C_(12)H_8N_2)_2, Mr=1349.08, triclinic, space group P, a=13.00(3), b=19.743(2), c=12.754(3)A, α=97.94(1), β=106.24(2), γ=91.66(1)°, V=3177(1)~3, Z=2, Dc=1.41gcm^(-3), λ(MoKα)=0.71069, μ=18.92 cm^(-1), F(ooo)=1384, T=295K, final R=0.073 for 6504 observed reflections with Ⅰ>36(Ⅰ). There are two nonidentical binuclear molecules with different bridging connection patterns in a cell. One has four bridging carboxyl groups bound two Y(Ⅲ) ions and another only has two. The Y-Y distance is 4.196 for the former and 5.302 for the latter respectively.

关键词： p-CH3C6H4COO CRYSTAL STRUCTURE OF BINUCLEAR Y H8N2 Y2 COMPLEX WITH p-METHYLBENZOIC ACID CH

Gd-EOB-DTPA-enhanced magnetic resonance imaging for bile duct intraductal papillary mucinous neoplasms

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World Journal of Gastroenterology 2015年第25期21卷 7824-7833页

作者： Shi-Hong Ying Xiao-Dong Teng zhao-ming wang Qi-Dong wang Yi-Lei zhao Feng Chen Wen-Bo Xiao Department of Radiology The First Affiliated Hospital College of Medicine Zhejiang University Department of Pathology The First Affiliated Hospital College of Medicine Zhejiang University

AIM: To investigate gadolinium-ethoxybenzyldiethylenetriamine-pentaacetic acid(Gd-EOB-DTPA)-enhanced magnetic resonance imaging(MRI) of intraductal papillary mucinous neoplasms of the bile duct(IPMN-B). METHODS: The imaging findings of five cases of IPMN-B which were pathologically confirmed at our hospital between March 2012 and May 2013 were retrospectively analyzed. Three of these cases were diagnosed by duodenal endoscopy and biopsy pathology, and two cases were diagnosed by surgical pathology. All five patients underwent enhanced and non-enhanced computed tomography(CT), magnetic resonance cholangiopancreatography, and Gd-EOB-DTPA-enhanced MRI; one case underwent both Gd-EOB-DTPA-enhanced MRI and positron emission tomography-CT. The clinical data and imaging results for these cases were compared and are ***: Conventional imaging showed diffusedilatation of bile ducts and multiple intraductal polypoid and papillary neoplasms or serrated changes along the bile ducts. In two cases, Gd-EOB-DTPA-enhanced MRI revealed dilated biliary ducts and intraductal tumors, as well as filling defects caused by mucin in the dilated bile ducts in the hepatobiliary phase. GdEOB-DTPA-enhanced MRI in one case clearly showed a low-signal tumor in the hepatobiliary phase, similar to what was seen by positron emission tomographyCT. In two patients, routine inspection was unable to discern whether the lesions were inflammation or tumors. However, Gd-EOB-DTPA-enhanced MRI revealed a pattern of gradual enhancement during the hepatobiliary phase, and the signal intensity of the lesions was lower than the surrounding liver parenchyma, suggesting tissue inflammation in both cases, which were confirmed by surgical pathology. CONCLUSION: Gd-EOB-DTPA-enhanced MRI reveals the intraductal mucin component of IPMN-B in some cases and the extent of tumor infiltration beyond the bile ducts in invasive cases.

关键词： Gadolinium-ethoxybenzyl-diethylenetriaminepentaacetic acid Magnetic resonance imaging Magneticresonance cholangiopancreatography Multidetectorcomputed tomography Bile duct neoplasms

Comprehensive sequential interventional therapy for hepatocellular carcinoma

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Chinese Medical Journal 2009年第19期122卷 2292-2298页

作者： ZHANG Liang FAN Wei-jun HUANG Jin-hua LI Chuan-xing zhao ming wang Li-gang TANG Tian State Key Laboratory of Oncology in Southern China Department of Radiology Cancer Center Sun Yat-sen. University Guangzhou Guangdong 510060 China

Background Since the 1980s, various approaches to interventional therapy have been developed, with the development and achievement of medical imaging technology. This study aimed to evaluate the effectiveness of comprehensive sequential interventional therapy especially personal therapeutic plan in 53 radical cure patients with hepatocellular carcinoma （HCC）. Methods From January 2003 to January 2005, a total of 203 patients with HCC received sequential interventional treatment in our hospital. Fifty-three patients achieved radical cure outcomes. Those patients were treated with transcatheter arterial chemoembolization （TACE）, radiofrequency ablation （RFA）, percutaneous ethanol injection （PEI）, or high intensity focused ultrasound （HIFU）, sequentially and in combination depending on their clinical and pathological features. PET-CT was used to evaluate, assess, and guide treatment. Results Based on the imaging and serological data, all the patients had a personal therapeutic plan. The longest follow-up time was 24 months, the shortest was 6 months, and mean survival time was 16.5 months. Conclusion Comprehensive sequential interventional therapy especially personal therapeutic plan for HCC play roles in interventional treatment of HCC in middle or advanced stage.

关键词： hepatocellular carcinoma comprehensive sequential interventional therapy positron emission tomography tomography, computerized

Improvement of 3D Scanner

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Semiconductor Photonics and Technology 2003年第2期9卷 133-136页

作者： LI ming-ming, zhao Hong, wang zhao, TAN Yu-shan(Laser & Infrared Institute, Xi’an Jiaotong University,Xi’an 710049,CHN) Laser & Infrared Institute Xi'an Jiaotong University Xi'an 710049

The disadvantage remaining in 3D scanning system and its reasons are discussed. A new host-and-slave structure with high speed image acquisition and processing system is proposed to quicken the image processing and im... 详细信息

关键词： DSP Host-and-slave system Image processing

Anatomic study of the Vestibular Apparatus by using FSE 3D H

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Anatomic study of the Vestibular Apparatus by using FSE 3D H