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地方治理研究 2018年第3期 78-80页

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Interaction of H2+ molecular beam with thin layer graphene foils

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Chinese Physics B 2019年第9期28卷 164-168页

作者： Min Li Guo-Feng Qu Yi-zhou Wang zhou-Sen Zhu Mian-Gong Shi mao-Lei zhou Dong Liu Zi-Xu Xu Ming-Jiang Song Jun Zhang Fan Bai Xiao-Dong Liao Ji-Feng Han Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China College of Physics and Electronic Engineering Sichuan Normal UniversityChengdu 610066China

The interaction of MeV H2^+ molecular ions with thin layer graphene and graphite foils was studied by using a highresolution electrostatic analyzer.A large number of fragment protons were observed at zero degree(along the beam direction) when the H2^+ beam was passing through the monolayer graphene foil, which indicates that the electron of the H2^+ molecular ions can be stripped easily even by the monolayer graphene *** trailing than leading protons were found in the energy spectrum, which means significant wake effect was observed in the monolayer graphene *** ratio of the numbers of trailing protons over leading protons first increased with the thickness for the much thinner graphene foils, and then decreased with the thickness for the much thicker graphite foils, which indicates that the bending effect of the wake field on the trailing proton varied with the foil thickness.

关键词： H2^+ molecular ions graphene electron stripping wake effect

Implementation of GPR Signals De-Noising Based on DSP

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Wuhan University Journal of Natural Sciences 2005年第6期10卷 1005-1008页

作者： CHEN Xiao-li TIAN mao zhou Hui-lin School of Electronic Information Wuhan University Wuhan 430072 Hubei China

An important issue of ground-penetrating radar （GPR） signals analysis is de-noising thai is the guarantee of acquiring good detecting effect. The paper illustrates a successful application of digital single processor （DSP） based on wavelet shrinkage algorithm. In order to realize real-time GPP, signals analysis, some key issues are discussed such as the realization of fast wavelet transformation, the selection of CPU chip and the optimization of data movement. Experimenial results show that the DSP based application not only basically meets the real-time requirement of GPP, signals analysis, but also assures the quality of the GPR signals analysis.

关键词： wavelet shrinkage de-noising GPR digital signal processor real time soft thresholding SNR

Neuroendocrine markers in adenocarcinomas:an investigation of 356 cases

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World Journal of Gastroenterology 2003年第4期9卷 858-861页

作者： Gen-You Yao Ji-Lin zhou mao-De Lai Xiao-Qing Chen Pei-Hui Chen Department of Pathology,Zhejiang University Medical School,Hangzhou 310031,China Research fellow of Pathology Department of Pathology Zhejiang University Medical School Hangzhou 310031 China. yaogy@***

AIM: To investigate the incidence of neuroendocrine (NE)cells and their hormone products in adenocarcinomas and evaluate their significance in clinical pathology and ***: By using tissue sectioning and immunocytochemistry, 356 cases of adenocarcinomas were studied to examine the presence of chromorgranin and polypeptide hormones in adenocarcinoma samples from our ***: The positive rate of NE cells and hormone products was 41.5 % (54/130) and 59.3 % (32/54), respectively in large intestinal adenocarcinoma cases; 39.6 % (38/96) and 36.8 % (14/38), respectively in gastric cancer cases; 38.1%(8/21) and 50.0 % (4/8), respectively in prostatic cancer cases; 21.0 % (17/81) and 17.6 % (3/17), respectively in breasr cancer cases; 17.9 % (5/28) and 60.0 % (3/5),respectively in pancreatic cancer cases. Among carcinomas of large intestine, pancreas and breast, the highly differentiated NE cell numbers were higher than the poorly differentiated NE cell numbers; while the gastric carcinoma cases had more poorly differentiated NE cells than highly differentiated NE cells. The higher detection rate of NE cells and their hormone products, the higher 5-year survival rate among the large intestine cancer ***: Close correlation was observed between NE cells and their hormone products with the cancer differentiations. For colorectal carcinomas, there is a close correlation of the presence of NE cells and their hormone products with the tumor staging and prognosis.

关键词：神经内分泌标志物腺癌病理组织学免疫细胞化学神经内分泌癌

The Indo-Burma biodiversity hotspot for ferns:Updated phylogeny,hidden diversity,and biogeography of the java fern genus Leptochilus(Polypodiaceae)

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Plant Diversity 2024年第6期46卷 698-712页

作者： Liang Zhang Zhen-Long Liang Xue-Ping Fan Ngan Thi Lu Xin-mao zhou Hong-Jin Wei Li-Bing Zhang CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesP.O.Box 416ChengduSichuan 610041China Department of Biology Vietnam National Museum of NatureVietnam Academy of Science and Technology18 Hoang Quoc VietHa NoiViet Nam School of Ecology and Environmental Science&School of Life Sciences Yunnan UniversityKunmingYunnan 650500China Eastern China Conservation Centre for Wild Endangered Plant Resources Shanghai Chenshan Botanical GardenShanghai 201602China Missouri Botanical Garden 4344 Shaw Blvd.St.LouisMO 63110USA

The Indo-Burma Biodiversity Hotspot is renowned for its rich biodiversity,including that of vascular ***,the fern diversity and its endemism in this hotspot have not been well understood and so far,the diversity of very few groups of ferns in this region has been explored using combined molecular and morphological ***,we updated the plastid phylogeny of the Java fern genus Leptochilus with 226(115%increase of the latest sampling)samples across the distribution range,specifically those of three phylogenetically significant species,Leptochilus ovatus,***,and *** also reconstructed the first nuclear phylogeny of the genus based on pgiC gene *** on molecular and morphological evidence,we identified three new major clades and six new subclades,redefined three existing species,discovered a number of cryptic species of the genus,and elucidated the evolution of the three most variable *** divergence time analyses and ancestral area reconstruction showed that Leptochilus originated in the Oligocene and diversified from early Miocene and 15 dispersal events from lower to higher latitudes are *** evolution of three most important morphological characters is analyzed in a context of the new *** analysis showed that 30(59%of total 51)species of Leptochilus occur in Indo-Burma hotspot,24(80%of the 30 species)of which are endemic to this *** argue that the Indo-Burma hotspot should be recognized as a diversity hotspot for ferns.

关键词： Cryptic speciation Dispersals from lower to higher latitudes Nuclear pgiC gene Fern diversity hotspot Java ferns Microsoroids

Studies on Chemical Constituents of Belamcanda Chinensis(L.)DC.(Ⅱ)

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Chinese Chemical Letters 1997年第2期8卷 133-134页

作者： Li Xin zhou and mao LIN(Institute of Materia Medica,Chinese Academy of Medical Sciences,Peking Union Medical College.Beijing, 100050) Institute of Materia Medica Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100050 China

Nine compounds were isolated from the acetone soluble fraction of ethanolic extract of the roots of Belamcanda chinensis (L.)DC. The structure of new compound I,named shegansu A,has been established as irigenin-5-O-(6'-O-vanillin acid)-β-D-glucoside(Ⅰ) by the use of spectroscopic evidence (UV, IR. FAB-MS.1HNMR, 13CNMR,1H-13CNMR and NOE difference spectrum) and chemical *** well known compounds were identified as isorhapotigenin (Ⅲ),resveratrol(Ⅳ), P-hydroxy benzoic acid (Ⅴ), iridin (Ⅵ), tectoridin (Ⅶ),tectorigenin(Ⅷ) and daucosterol(Ⅸ). Ⅲ-Ⅸ were isolated from the plant for the first time.

关键词： DC OCH

Keyhole approach surgery for petroclival meningioma

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Chinese Medical Journal 2006年第16期119卷 1339-1342页

作者： ZHU Wei mao Ying zhou Liang-fu ZHANG Rong CHEN Liang Department of Neurosurgery Shanghai Neurosurgical Center Huashan Hospital of Fudan University Shanghai 200040 China

Background In China, the feasibility of keyhole approach in surgical treatment of petroclival meningioma has not been well evaluated. This report summarized our experience in 25 patients with petroclival meningioma who had been treated with keyhole approach surgery. Methods From July 2000 to July 2005, 25 patients with petroclival meningioma were subjected to resection via subtemporal, retrosigmoid or combined keyhole approaches. The extent of tumor resection was evaluated by MRI 3 months after surgery, and postoperative complications were investigated. Results The maximum diameter of tumors ranged from 2 to 7 cm （mean, 4.5 cm）. Gross total resection （GTR） was achieved in 14 patients, giving a GTR rate of 56%. Subtotal resection （STR） was carried out in 8 patients and partial resection in 3. Thirteen patients kept normal neurological status, whereas others suffered from cranial nerve deficits （Ⅶ, Ⅶ, Ⅲ and lower CN）. One patient died in the postoperative period. Conclusions Keyhole approach surgery, especially the combined keyhole approach is suitable for the treatment of petroclival meningioma. It provides easy and quick access to the supra- and infratentorial juxta-clival region without drilling of the petrous bone. Complications related to the approach can be minimized.

关键词： keyhole surgery petroclival meningioma subtemporal approach retrosigmoid approach