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Biomedical and Environmental Sciences 2012年第4期25卷 392-398页

作者： MA ka Ying LIANG Yin Tong CHEN Jing Nan JIANG Yue KWAN Kin Ming PENG cheng JIAO Rui ZUO Yuan Yuan HUANG Yu CHEN Zhen Yu Food & Nutritional Sciences Programme School of Life Sciences The Chinese University of Hong Kong Shatin NT Hong Kong China Department of Biology and Kwong Living Trust Food Safety & Analysis Laboratory Hong Kong Baptist University Kowloon Tong Hong Kong China School of Biomedical Sciences The Chinese University of Hong Kong Shatin NT Hong Kong China

Objective To investigate the effect of dietary calcium on plasma lipoprotein profile in castrated and ovariectomized hamsters. Methods Male, castrated, female and ovariectomized hamsters （n=36 each group） were randomly divided into three sub-groups （n=12） and fed one of the three diets containing O, 2, and B g calcium per kg diet for a period of six weeks. Changes in plasma lipoprotein profile were monitored at the end of week O, 3 and 6. Results Plasma total cholesterol （TC）, non-high density lipoprotein cholesterol （non-HDL-C）, triacylglycerols （TG） and TC/HDL-C were decreased only in intact female and ovariectomized hamsters. In contrast, three levels of dietary calcium had no effect on lipoprotein profiles in both intact male and castrated hamsters. Conclusion Beneficial modification of lipoprotein profile by dietary calcium was gender-dependent at least in hamsters.

关键词： Calcium Cholesterol Triacylglycerols Fecal sterols

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民主转型时代选举改革的理论探讨

开放时代 2006年第3期 74-88页

作者：陈家洛香港浸会大学政治及国际关系学系

本文的目的是,对制度选择的理性选择观加以修正,以解释后共产国家选举制度的起源和变革。我们区分出研究选举制度的设计和改革的三种观察的角度,承认决策者动机的多样性。通过考察不同时期的制度变革以及理念和理性因素在制度形成和变... 详细信息

本文的目的是,对制度选择的理性选择观加以修正,以解释后共产国家选举制度的起源和变革。我们区分出研究选举制度的设计和改革的三种观察的角度,承认决策者动机的多样性。通过考察不同时期的制度变革以及理念和理性因素在制度形成和变革过程中的相互作用,我们希望不必再从“行动”还是“结构”、“利益”还是“理念”这种二元的角度考虑问题。

关键词：选举改革转型时代民主选举制度理性因素相互作用制度形成制度变革不同时期 “理念”

Profiles and removal efficiency of polycyclic aromatic hydrocarbons by two different types of sewage treatment plants in Hong Kong

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Journal of Environmental Sciences 2017年第3期29卷 196-206页

作者： Yu Bon Man ka Lai Chow Zhang cheng Wing Yin Mo Yung Hau Chan James Chung Wah Lam Frankie Tat Kwong Lau Wing Cheong Fung Ming Hung Wong Consortium on Health EnvironmentEducation and Research(CHEER)and Department of Science and Environmental StudiesThe Education University of Hong KongTai PoHong KongChina Department of Environmental Engineering Jinan UniversityGuangzhou 510630China State Key Laboratory in Marine Pollution Croucher Institute for Environmental SciencesHong Kong Baptist University and City University of Hong KongKowloon TongHong KongChina Department of Geography Hong Kong Baptist UniversityKowloon TongHong KongChina College of Environment Sichuan Agricultural UniversityChengdu 611130China State Key Laboratory in Marine Pollution and Research Centre for the Oceans and Human Health City University of Hong KongKowioon TongHong KongChina The Drainage Services Department The Government of the Hong Kong Special Administrative RegionHong KongChina

Sewage discharge could be a major source of polycyclic aromatic hydrocarbons （PAHs） in the coastal waters. Stonecutters Island and Shatin Sewage Treatment Works （SCISTW and STSTW） in Hong Kong, adopted chemically enhanced primary treatment and biological treatment, respectively. This study aimed at （1） determining the removal efficiencies of PAHs, （2） comparing the capabilities in removing PAHs, and （3） characterizing the profile of each individual PAHs, in the two sewage treatment plants （STPs）. Quantification of 16 PAHs was conducted by a Gas Chromatography. The concentrations of total PAHs decreased gradually along the treatment processes （from 301 ± 255 and 307 ± 217 ns/L to 14.9 ± 12.1 and 63.3 ± 54.1 ng/L in STSTW and SCISTW, respectively）. It was noted that STSTW was more capable in removing total PAHs than SCISTW with average total removal effidency 94.4% ± 4.12% us. 79.2% ± 7.48% （p 〈 0.05）. The removal of PAHs was probably due to sorption in particular matter, confirmed by the higher distribution coefficient of individual and total PAHs in solid samples （dewatered sludge contained 92.5% and 74.7% of total PAHs in SCISTW and STSTW, respectively） than liquid samples （final efffluent-total contained 7.53% and 25.3% of total PAHs in STSTW and SCISTW, respectively）. Despite the impressive capability of STSTW and SCISTW in removing PAHs, there was still a considerable amount of total PAHs （1.85 and 39.3 ks/year, respectively for the two STPs） being discharged into Hone Kon coastal waters, which would be an environmental concern.

关键词： Sewage treatment plantsPAHsRemoval efficiencySludgeSewage

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以竹代塑产品在包装领域应用现状

包装工程 2024年第11期45卷 22-33页

作者：刘美仙程峥毛凯韵肖乃玉刘义存张雪琴钟乐仲芸芸仲恺农业工程学院轻工食品学院广州510225 仲恺农业工程学院园艺园林学院广州510225 广东省食品绿色包装工程技术研究中心广州510225 岭南特色食品绿色加工与智能制造重点实验室广州510225

目的介绍不同种类竹材包装的生产加工方式及其应用,并对以竹代塑产品在包装领域的发展进行展望,以期为以竹代塑产业发展提供借鉴和参考。方法总结不同以竹代塑产品生产工艺和性能的特点,分析原竹包装和经过化学改性竹包装技术在包装领... 详细信息

目的介绍不同种类竹材包装的生产加工方式及其应用,并对以竹代塑产品在包装领域的发展进行展望,以期为以竹代塑产业发展提供借鉴和参考。方法总结不同以竹代塑产品生产工艺和性能的特点,分析原竹包装和经过化学改性竹包装技术在包装领域的应用现状和存在问题。结果可以在竹包装材料加工过程中添加功能助剂,或者对竹基材进行物理或化学改性,以及生产设备的机械化和智能化延伸,提升以竹代塑产品的品质和货架期。结论以竹代塑产品的广泛应用势必会推动以竹代塑产业的可持续高质量发展,为提高竹包装品质和内装产品安全性提供了借鉴和参考。

关键词：竹材以竹代塑包装发展趋势

巧家盆地第四纪洪积物沉积阶段及其对小江断裂带北段活动性的指示

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成都理工大学学报（自然科学版） 2024年第3期51卷 418-427页

作者：台梓含向芳程万强王运生黄恒旭宋良周宇航云南省地震局昆明650224 油气藏地质及开发工程全国重点实验室(成都理工大学) 成都610059 中国电建集团华东勘测设计研究院有限公司杭州311122 地质灾害防治与地质环境保护国家重点实验室(成都理工大学) 成都610059

通过对巧家盆地第四纪洪积物沉积阶段及其沉积年代进行分析,为小江断裂带北段第四纪活动性研究提供沉积学证据。研究结果表明:巧家盆地形成于早更新世中期,平均断陷速率为0.59 m/ka,共发育了5个洪积相沉积层。第四纪以来小江断裂带北段... 详细信息

通过对巧家盆地第四纪洪积物沉积阶段及其沉积年代进行分析,为小江断裂带北段第四纪活动性研究提供沉积学证据。研究结果表明:巧家盆地形成于早更新世中期,平均断陷速率为0.59 m/ka,共发育了5个洪积相沉积层。第四纪以来小江断裂带北段处于构造平静期与活跃期相互交替的阶段,期间共经历了早更新世中期~1.6 Ma,0.81~0.79 Ma,0.65~0.59 Ma,0.48~0.4 Ma,0.12 Ma至今等5期构造活跃期,其中0.48~0.4 Ma和0.12 Ma至今为小江断裂带北段构造活动最强烈的阶段。小江断裂带北段活动性与新构造运动过程有着密切的成因联系,受控于青藏高原东南缘持续的侧向扩展挤出作用,但相较于断裂带中段活动性偏弱。

关键词：巧家盆地洪积物小江断裂带北段构造活跃期断陷速率

Early-onset primary torsional dystonia in a 4-generation Chinese family with a mutation in the DYT1 gene

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Chinese Medical Journal 2005年第10期118卷 873-876页

作者： YEUNG Wai Lan LAM Ching Wan cheng Wai Tsoi SIN Ngai Chuen WONG Wing Kin WONG Chun Nei TSE ka Ming FOK Tai Fai Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong China Departments of Paediatrics Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong China Chemical PathologyPrince of Wales Hospital The Chinese University of Hong Kong Hong Kong China Departments of Paediatrics Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong China Departments of Paediatrics Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong China Departments of Paediatrics Department of Paediatrics and Adolescent Medicine Queen Mary Hospital University of Hong Kong Nuclear Medicine & PET Division Scanning Department St. Teresa’s Hospital Hong Kong ChinaPrince of Wales Hospital The Chinese University of Hong Kong Hong Kong China Departments of Paediatrics

Primary torsion dystonia (PTD) is a clinically and genetically heterogeneous movement disorder. At least thirteen different types of dystonia can be distinguished on a genetic basis.~1 The DYT1 gene was first mapped by Ozelius et al in 1989.~2 (Kramer et) al^3 linked the same locus to PTD in 12 Ashkenazi Jewish families in 1990. Most patients with early-onset generalized PTD were caused by the same three base pair (GAG) deletion in the DYT1 gene on chromosome 9q34.^(1,4,5) The product of the gene is a protein called torsinA.~5 (Although the) function of this protein is as yet uncertain, it is widely distributed throughout the brain with high levels in the substantia nigra compacta dopamine neurones.~6

关键词： DYT1 gene · dystonia · positron emission tomography

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铸铝与挤压铝合金的电阻点焊工艺试验研究

金属加工（热加工） 2024年第1期 12-18,27页

作者：张可程哲闻张贤昆李胜利石磊华人运通(山东)科技有限公司上海201100 山东大学材料液固结构演变与加工教育部重点实验室山东济南250061

采用电阻点焊工艺对厚度为3mm的铸铝和2mm的5系挤压铝合金进行了连接。对焊后的接头进行了剪切拉伸试验,使用金相显微镜分析其宏观形貌和微观结构,使用扫描电镜对断口进行分析。结果表明:接头主要由4个典型区域组成,分别为母材、热影响... 详细信息

采用电阻点焊工艺对厚度为3mm的铸铝和2mm的5系挤压铝合金进行了连接。对焊后的接头进行了剪切拉伸试验,使用金相显微镜分析其宏观形貌和微观结构,使用扫描电镜对断口进行分析。结果表明:接头主要由4个典型区域组成,分别为母材、热影响区、柱状晶区和等轴晶区。焊核主要向铸铝侧偏移,合适的焊接电流能够降低焊核偏移带来的影响,同时提升接头性能。在压力6k N、焊接电流40k A的条件下,接头平均失效载荷达到最高,为(7.09±0.33)kN。接头断裂行为可分为焊点处和铸铝处断裂两种模式,其中铸铝处断裂为韧性断裂。

关键词：异种铝合金电阻点焊微观组织力学性能断裂行为

Surface Geophysical Methods used to Verify the karst Geological Structure in the Built-up Area:A Case Study of Specific Engineering-Geological Conditions

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Acta Geologica Sinica(English Edition) 2021年第5期95卷 1763-1770页

作者： Rene PUTISka Marian MARSCHALKO Isik YILMAZ Dominik NIEMIEC cheng Xianfeng Ivan DOSTAL Jan KUBAC Comenius University Faculty of Natural SciencesDepartment of Applied and Environmental GeophysicsIlkovičova 6BratislavaSlovakia VSB-Technical University of Ostrava Faculty of Mining and GeologyInstitute of Geological Engineering17 listopadu1570833OstravaCzech Republic Cumhuriyet University Faculty of EngineeringDepartment of Geological Engineering58140 SivasTurkey Yunnan Land and Resources Vocational College Kunming 652501China

This article presents a research study of complex limestone karst engineering-geological conditions in the municipality Valaskanear Banska Bystrica in *** aim of the study is to demonstrate the impossibility of spatial identification of cave spaces using surface geophysical methods due to the specific engineering-geological conditions of a thick surface layer of anthropogenic fill containing highly heterogeneous anthropogenic *** maximum thickness is 3 *** specificific condition of the study area is its location in the built-up area,due to which the applicability of geophysical methods was *** article contains methodological recommendations to be used in analogous geological conditions with karst structures topped with anthropogenic fill,which complicates the identification of cave *** recommended solution herein is the identification of the cave system using underground mapping of the karst and its projection onto the surface for which surface geophysical methods have been combined.

关键词： karst engineering geology limestone dolomite anthropogenic fill complicated engineering-geological conditions geophysical study

Fulminant ulcerative colitis associated with steroid-resistant minimal change disease and psoriasis: A case report

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World Journal of Gastroenterology 2007年第29期13卷 4022-4024页

作者： ka-Ho lok Hiu-Gong Hung Wai-Man Yip Kin-Kong Li kam-Fu Li Ming-Leung Szeto Division of Gastroenterology and Hepatology Department of Medicine and Geriatrics Tuen Mun Hospital Tsing Chung Koon Road Tuen Mun Hong Kong China

A 43-year-old Chinese patient with a history of psoriasis developed fulminant ulcerative colitis after immunosuppressive therapy for steroid-resistant minimal change disease was stopped. Minimal change disease in association with inflammatory bowel disease is a rare condition. We here report a case showing an association between ulcerative colitis, minimal change disease, and psoriasis. The possible pathological link between 3 diseases is discussed.

关键词：急性溃疡性结肠炎炎性肠疾病最小变化疾病银屑病免疫抑制治疗

A K-/ka-band planar shared-aperture beam-scanning array with a high-isolation for the emerging mm-Wave shared-aperture terminals

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Science China(Information Sciences) 2023年第5期66卷 257-270页

作者： Zi-Jun GUO Zhang-cheng HAO Zhuo-Wei MIAO Hao-Yu YIN Chen-Yu DING Hao-Jie GANG State Key Laboratory of Millimeter Waves School of Information Science and Engineering Southeast University Purple Mountain Laboratories

A planar K-/ka-band shared-aperture array with the steerable beam is proposed in this paper. The substrate-integrated coaxial line(SICL)-excited short-circuited-stub-loaded longitudinal slot and substrate-integrated double line(SIDL)-excited slot-loaded patches are employed to radiate K-/ka-band waves, respectively. Then, to constitute the 1-D K-/ka-band arrays, the center-fed SICL feed network and SIDL-based full diferential feed network are introduced to widen the bandwidth. Finally, the GCPW-toSICL and GCPW-to-SIW transitions are adopted to excite the proposed array, respectively. Both SICL and SIDL feed networks are located below the radiating aperture. Those arrays are interleaved and shared the same radiation aperture, as well as the shielding metallic-via-array for achieving a compact footprint. To excite the above radiating elements, the SICL center feed network and fully diferential feed network are introduced to widen the bandwidth. The channel isolation is improved by utilizing the fully diferential feed network and the filtering response of the SIW. Equivalent circuits are proposed for designing the proposed antenna. Thanks to the miniaturized geometries of K-/ka-band arrays, the proposed antenna is able to scan up to 60? and 35? at K-/ka-band, respectively. As an example, a shared-aperture array with a steerable beam is developed and fabricated by using a multilayer printed circuited board with the designed frequencies of 19 GHz(17.7–20.2 GHz) and 29 GHz(27.5–30 GHz). The aperture dimension of the array antenna is49.6 mm×40.75 mm. A good consistency between the simulation and measurement is acquired. The measured peak gains in K-/ka-band are 16.6 and 17.6 d Bi. When the radiation beam points to 0?, the 3-d B gain bandwidth at K-band is 14.9%(17.4–20.2 GHz), while the 3 d B gain bandwidth at ka-band covers from 27.6to 30.4 GHz, i.e., a bandwidth of 9.7%. When the radiation beams are deflected to 60? and 35?, the measured gains of the proposed antenna flu

关键词： shared-aperture high isolation beam-scanning substrate-integrated coaxial line substrate-integrated double line