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| 1 | 评估大气细颗粒物暴露引起的全球疾病负担的一个综合风险函数显示文摘[背景]评估由于环境空气中细颗粒物(PM2.5)长期暴露引起的疾病负担,需要了解相对风险度(RR)函数的图形和幅度。然而,在世界上很多观察到高PM2.5环境浓度的地方,都缺乏足够的直接证据确定死亡RR函数的图形。[目的]建立可用于全球PM2.5暴露范围内成人死因的RR函数:缺血性心脏病(IHD)、脑血管疾病(脑卒中)、慢性阻塞性肺病(COPD)和肺癌(LC)。建立急性下呼吸道感染(ALRI)发病的RR函数,用于估算〈5岁的儿童中死亡率和健康生活损失年数。[方法]通过整合现有的来自于环境空气污染(AAP)、二手烟草烟雾、家用固体烹饪用燃料和主动吸烟(AS)等研究的RR信息,拟合综合暴露-反应(IER)模型。采用颗粒物质的吸入剂量,通过转化AS暴露来估计全年PM2.5的暴露当量。在估算全球环境PM2.5浓度的基础上,得出各国的人群归因分数(PAFs)。[结果]与以往负担评估中使用的其他7种模型相比,IER模型是一种优越的RR预测方法。在不同国家中,归因于AAP暴露的PAF百分数各不相同,分别为:IHD,2~41;脑卒中,1~43;COPD,〈1~21;LC,〈1~25;ALRI,〈1~38。[结论]我们建立了一种以细颗粒物为基础的RR模型,它通过整合来自不同类型的燃烧所产生颗粒物排放的RR信息,涵盖全球范围的暴露。当获得新的RR信息时,可以对这个模型进行更新。 | Richard T.Burnett C.Arden Pope III Majid Ezzati Casey Olives Stephen S.Lim Sumi Mehta Hwashin H.Shin Gitanjali Singh Bryan Hubbell Michael Brauer H.Ross Anderson Kirk R.Smith John R.Balmes Nigel G.Bruce Haidong Kan Francine Laden Annette Prüss-Ustün Michelle C.Turner Susan M.Gapstur W.Ryan Diver Aaron Cohen 何蓉 张伊人 金泰廙 | 2014 | 环境与职业医学2014,31,11: | 80 |
| 2 | Regulation of the cell cycle gene, BTG2, by miR-21 in human laryngeal carcinoma显示文摘MicroRNAs 是否定地在 post-transcriptional 水平调制基因表示的短规章的 RNA,并且深深地涉及癌症的几种类型的致病。调查特定的 miRNAs 和他们的目标基因是否参予喉的癌的分子的致病, oligonucleotide microarrays 被用来与正常纸巾相比在喉的癌纸巾估计 microRNAs 和 mRNAs 的微分表示侧面。oncogenic miRNA, microRNA-21 (miR-21 ) ,被发现是在喉的癌纸巾的 upregulated。由特定的 antisense oligonucleotides 的 miR-21 击倒而 miR-21 的 overexpression 提高了细胞的生长活动,由殖民地形成试金检测了,禁止了 HEp-2 细胞的增长潜力。miR-21 抑制引起的房间数字减小由于 G1-S 阶段转变的控制的损失,而不是 apoptosis 的显著增加。随后, miR-21 的新目标基因, BTG2,被发现是在喉的癌纸巾的 downregulated。BTG2 被知道充当一个平底锅房间周期管理者和肿瘤 suppressor。这些调查结果显示 miR-21 的那异常表情可以由维持 BTG2 的底层贡献喉的癌的恶意的显型。oncogenic miR-21 和它的目标基因的鉴定, BTG2,为癌症诊断和治疗在喉的癌是潜在地珍贵的。 | Min Liu Haidong Wu Tao Liu Yixuan Li Fang Wang Haiying Wan Xin Li Hua Tang | 2009 | Cell Research2009,19,7: | 40 |
| 3 | Inhibition of the B7-H3 immune checkpoint limits tumor growth by enhancing cytotoxic lymphocyte function显示文摘在肿瘤和免疫系统之间的相互作用仍然糟糕被理解。重要临床的回答在对 CTLA4 和 PD-1/PD-L1 检查点与抗体对待的癌症病人被完成了;然而,仅仅病人的小部分对治疗作出回应,显示需要探索为癌症治疗的另外的 co 禁止的分子。B7-H3, B7 总科的一个成员,被我们以前显示出禁止 T 房间激活和 autoimmunity。在这研究,我们在肿瘤免疫分析了 B7-H3 的功能。B7-H3 的表示在多重肿瘤线,渗入肿瘤的树枝状的房间,和巨噬细胞被发现。与对抗抗体对待到 B7-H3 的 B7-H3-deficient 老鼠或老鼠显示出多重肿瘤的减少的生长,它取决于 NK 和 CD8 + T 房间。与细胞毒素的淋巴细胞表示的通常认为的受体, B7-H3 禁止了他们的激活,并且它的缺乏在忍受肿瘤的鼠标导致了增加的细胞毒素的淋巴细胞功能。B7-H3 和 PD-1 的联合封锁导致了迟了阶段的肿瘤的进一步提高的治疗学的控制。一起拿,我们的结果显示 B7-H3 检查点可以对癌症为免疫疗法用作一个新奇目标。 | Young-hee Lee Natalia Martin-Orozco Peilin Zheng Jing Li Peng Zhang Haidong Tan Hyun Jung Park Mira Jeong Seon Hee Chang Byung-Seok Kim Wei Xiong Wenjuan Zang Li Guo Yang Liu Zhong-jun Dong Willem W Overwijk Patrick Hwu Qing Yi Larry Kwak Zhiying Yang Tak W Mak Wei-Li Laszlo G Radvanyi Ling Ni Dongfang Liu Chen Dong | 2017 | Cell Research2017,27,8: | 29 |
| 4 | Immunoregulatory Role of B7-H1 in Chronicity of Inflammatory Responses显示文摘包括长期的感染,自体免疫的疾病和癌症,很长期的人的疾病的致病经常包含坚持的、未解决的煽动性的回答。决定尖锐煽动性的回答的变换进一个长期的过程的分子的机制难倒研究人员许多年了。最近的研究揭示那 B7-H1 (CD274, PD-L1 ) ,一个最新识别的 co-stimulatory 分子,拥有天真的 T 房间的合作刺激和激活的受动器 T 房间的抑制的双功能。异常细胞的表示和 B7-H1 的 deregulated 功能在长期的病毒、细胞内部的细菌的感染期间被报导了,以及在许多自体免疫的疾病和癌症。重要地, B7-H1 的双功能的解除管制看起来与被联系一延长,由为激活诱惑天真的 T 房间并且阻抑的不完全的有免疫力的反应激活受动器 T 房间。而且,指向 B7-H1 信号的策略的开发提供一条新、有希望的途径操作与长期的发炎联系的破坏疾病。因此, B7-H1 可以在煽动性的回答的慢性起一个批评 immunoregulatory 作用。 | Haidong Dong Xianming Chen | 2006 | Cellular & Molecular Immunology2006,3,3: | 25 |
| 5 | SINS/CNS/GPS integrated navigation algorithm based on UKF显示文摘A new nonlinear algorithm is proposed for strapdown inertial navigation system (SINS)/celestial navigation system (CNS)/global positioning system (GPS) integrated navigation systems. The algorithm employs a nonlinear system error model which can be modified by unscented Kalman filter (UKF) to give predictions of local filters. And these predictions can be fused by the federated Kalman filter. In the system error model, the rotation vector is introduced to denote vehicle's attitude and has less variables than the quaternion. Also, the UKF method is simplified to estimate the system error model, which can both lead to less calculation and reduce algorithm implement time. In the information fusion section, a modified federated Kalman filter is proposed to solve the singular covariance problem. Specifically, the new algorithm is applied to maneuvering vehicles, and simulation results show that this algorithm is more accurate than the linear integrated navigation algorithm. | Haidong Hu Xianlin Huang | 2010 | Journal of Systems Engineering and Electronics2010,21,1: | 23 |
| 6 | Wind Power Flow Optimization and Control System Based on Rapid Energy Storage显示文摘风电功率的间歇与波动致使电场容量可信度低、可调度性差;同时易引起局部电网的电压不稳、频率波动,影响了系统的电能质量及稳定性。针对此现象,将超级电容器与蓄电池组成快速储能装置,用于风电的潮流优化控制。采用三重双向直流变换电路控制储能元件间的功率流动;采用四象限交直流变换电路控制储能与电网间的能量交换。提出基于超级电容器电压低频波动抑制的功率分配方法,可显著减少蓄电池的充放次数;提出基于储能元件荷电状态的储能能量调整规则,可避免储能元件的过充和频繁深度放电,以优化其功率调节能力。实验结果表明,系统可实现2种储能元件的优势互补,能有效平滑调节风电注入电网的有功功率,并实时补偿控制风电接入点的无功功率。 | ZHAO Yanlei LI Haidong ZHANG Lei ZHANG Housheng | 2012 | 中国电机工程学报2012,32,13: | 23 |
| 7 | miR-20a promotes proliferation and invasion by targeting APP in human ovarian cancer cells显示文摘MicroRNAs (miRNAs ) 作为小调整 RNA 的一个班正在出现,并且 miRNAs 的改变在人的癌症的开始和前进被含有。我们的学习在房间线能压制的 OVCAR3 卵巢的癌症显示出 miR-20a 的那抑制,而 miR-20a 的 overexpression 能提高房间长期的增长和侵略。我们也作为 miR-20a 的直接目标基因证实了淀粉的先锋蛋白质(应用软件) 。而且,应用软件表示的抑制能也支持卵巢的癌症房间增长和侵略,它与 miR-20a overexpression 的结果一致。因此,我们断定应用软件的规定是重要机制让 miR-20a 在卵巢的癌症房间支持增长和侵略。 | Xingxing Fan Yankun Liu Jiechun Jiang Zhuoya Ma Haidong Wu Tao Liu Min Liu Xin Li Hua Tang | 2010 | Acta Biochimica et Biophysica Sinica2010,42,5: | 20 |
| 8 | Distribution and elimination of polycyclic musks in three sewage treatment plants of Beijing, China显示文摘The two representative polycyclic musks, 1-(5,6,7,8-tetrahydro-3,5,5,6,8,8-hexamethyl-2-naphthenyl)-ethanone (AHTN) and 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyrane (HHCB), were measured in aqueous samples and sludge samples of three sewage treatment plants (STPs) in Beijing, China using a gas chromatograph-mass spectrometry. The HHCB and AHTN concentration ranges in the influents were 1251.4-3003.8 ng/L and 111.9-286.3 ng/L, respectively. Meanwhile, the ranges of 492.8-1285.3 ng/L for HHCB and 47.3-89.3 ng/L for AHTN were present in the effluents. The musks in the sludges were three to four orders of magnitude higher than those in aqueous sewages. The removal efficiencies of the two musks varied in the ranges of 41.7%- 70.1% for HHCB, and 25.5%-68.8% for AHTN. Adsorption onto suspended particulate matter played an important role in removing musks from the sewages. The HHCB/AHTN ratio along the treatment processes showed that the two musks had high similarity of removal from sewage by each reactor in STP. The musks in the effluent sewages may pose a low potential risk to aquatic environment in terms of the predicted-non-effect concentration. Nevertheless, considering the possible additive and synergistic effects with other compounds emitted via STPs, their bioconcentration and bioaccumulation in aquatic organisms and so on, it is essential to monitor these compounds in various compartments and to study their environmental fate. | ZHOU Haidong HUANG Xia GAO Mijun WANG Xiaolin WEN Xianghua | 2009 | Journal of Environmental Sciences2009,21,5: | 17 |
| 9 | Beclin 1 cleavage by caspase-3 inactivates autophagy and promotes apoptosis显示文摘Autophagy and apoptosis are both highly regulated biological processes that play essential roles in tissue homeostasis,development and diseases.Autophagy is also described as a mechanism of death pathways,however,the precise mechanism of how autophagy links to cell death remains to be fully understood.Beclin 1 is a dual regulator for both autophagy and apoptosis.In this study we found that Beclin 1 was a substrate of caspase-3 with two cleavage sites at positions 124 and 149,respectively.Furthermore,the autophagosome formation occurred,followed by the appearance of morphological hallmarks of apoptosis after staurosporine treatment.The cleavage products of Beclin 1 reduced autophagy and promoted apoptosis in HeLa cells and the cells in which Beclin 1 was stably knocked down by specific shRNA.In addition,the cleavage of Beclin 1 resulted in abrogating the interaction between Bcl-2 with Beclin 1,which could be blocked by z-VAD-fmk.Thus,our results suggest that the cleavage of Beclin 1 by caspase-3 may contribute to inactivate autophagy leading towards augmented apoptosis. | Yushan Zhu Lixia Zhao Lei Liu Ping Gao Weili Tian Xiaohui Wang Haijing Jin Haidong Xu Quan Chen | 2010 | Protein & Cell2010,1,5: | 17 |
| 10 | A Novel Mitogen-Activated Protein Kinase Gene in Maize (Zea mays),ZmMPK3,is Involved in Response to Diverse Environmental Cues显示文摘In search for components of mitogen-activated protein kinase (MAPK) cascades in maize (Zea mays) involved in response to abscisic acid (ABA) stimulus,a novel MAPK gene,ZmMPK3,from ABA-treated maize leaves cDNA was isolated and characterized.The full length of the ZmMPK3 gene is 1 520 bp and encodes a 376 amino acid protein with a predicted molecular mass of 43.5 kD and a pI of 5.83.ZmMPK3 contains all 11 MAPK conserved subdomains and the phosphorylation motif TEY.Amino acid sequence alignment revealed that ZmMPK3 shared high identity with group-A MAPK in plants.A time course (30–360 min) experiment using a variety of signal molecules and stresses revealed that the transcripts level of ZmMPK3 accumulated markedly and rapidly when maize seedlings were subjected to exogenous signaling molecules: ABA,H2O2,jasmonic acid and salicylic acid,various abiotic stimuli such as cold,drought,ultraviolet light,salinity,heavy metal and mechanical wounding.Its transcription was also found to be tissue-specific regulated.Here,we show that ABA and H2O2 induced a significant increase in the ZmMPK3 activity using immunoprecipitation and in-gel kinase assay.Furthermore,the results showed that the ZmMPK3 protein is localized mainly to the nucleus.These results suggest that the ZmMPK3 may play an important role in response to environmental stresses. | Jinxiang Wang Haidong Ding Aying Zhang Fangfang Ma Jianmei Cao Mingyi Jiang | 2010 | Journal of Integrative Plant Biology2010,52,5: | 16 |
| 11 | New In-Situ LA-ICP-MS U-Pb Ages of Uraninite from the Mianhuakeng Uranium Deposit, Northern Guangdong Province, China: Constraint on the Metallogenic Mechanism显示文摘Objective Hydrothermal uranium deposits in South China have become one of the main uranium producers over the past several decades.Numerous uranium deposits are densely distributed in the Guidong and Zhuguangshan plutons of the Nanling region,which constitute the largest uranium mineralization area in China(Cai Yuqi et al.,2015).The Mianhuakeng(MHK)uranium deposit,one of the | ZHONG Fujun PAN Jiayong QI Jiaming YAN Jie LIU Wenquan LI Haidong | 2018 | Acta Geologica Sinica(English Edition)2018,92,2: | 14 |
| 12 | Ages, Sources and Tectonic Settings of the Triassic Igneous Rocks in the Easternmost Segment of the East Kunlun Orogen, Central China显示文摘U–Pb analysis of zircons from igneous rocks in the Elashan Mountain, easternmost segment of the East Kunlun Orogen yielded 252–232 Ma. Geochemically, these rocks are mainly high in SiO_2, K_2O and K_2O+Na_2O contents, low in P_2O_5 and TiO_2 contents, depleted in Ba, Sr, P, Ti and enriched in U, Hf, Zr, showing features of I–type granite. The zircon εHf(t) values of the Early Triassic Jiamuge'er rhyolite porphyry(252±3 Ma) are positive(+1.6 to +12.1), suggesting a juvenile crustal source mixing with little old crustal component, and the zircon εHf(t) values of the Middle Triassic Manzhang'gang granodiorite(244±3 Ma) and Dehailong diorite(237±3 Ma) are predominately negative(-8.4 to +1.0), indicating an older crustal source. In comparison, the zircon εHf(t) values of the Late Triassic syenogranites from Suigen'ergang(234±2Ma), Ge'ermugang(233±2 Ma) and Yue'ergen(232±3 Ma) plutons vary from-3.8 to +5.0, suggesting a crust-mantle mixing source. From Early–Middle Triassic(252–237 Ma) to Late Triassic(234–232 Ma), the geochemical characteristics of these rocks show the change from a subduction–collision setting to a post-collision or within-plate setting. By comparing of these new age data with 77 zircon U–Pb ages of igneous rocks of the eastern part of East Kunlun orogen from published literatures, we conclude that the igneous rocks of Elashan Mountain and these of the eastern part of East Kunlun Orogen belong to one magmatic belt. All these data indicate that the Triassic magmatic events of the eastern part of East Kunlun Orogen can be divided into three stages: 252–238 Ma, 238–226 Ma and 226–212 Ma. Statistically, the average εHf(t) values of the threestage igneous rocks show a tendency, from the old to young, from-0.75±0.25 to lower-2.65±0.52 and then to-1.22±0.25, respectively, which reveal the change of their sources. These characteristics can be explained as a crust-mantle mixing source generated in a subductional stage, mainly crust source in a syn–collisional stage and a crust-mantle mixing source(lower crust with mantle-derived underplating magma) in a post-collisional stage. The identification of these three magmatic events in the Elashan Mountain, including all the eastern part of East Kunlun Orogen, provides new evidence for better understanding of the tectonic evolution of the northward subduction and closure of the Paleo-Tethyan(252–238 Ma), the collision of the Songpan–Ganzi block with the southern margin of Qaidam block(238–226 Ma), and the post–collisional setting(226–212 Ma) during the Early Mesozoic period. | REN Haidong WANG Tao ZHANG Lei WANG Xiaoxia HUANG He FENG Chengyou TESCHNER Claudia SONG Peng | 2016 | Acta Geologica Sinica(English Edition)2016,90,2: | 13 |
| 13 | Phosphate removal from domestic wastewater using thermally modified steel slag显示文摘This study was performed to investigate the removal of phosphate from domestic wastewater using a modified steel slag as the adsorbent. The adsorption effects of alkalinity, salt, water,and thermal modification were investigated. The results showed that thermal activation at 800℃ for 1 hr was the optimum operation to improve the adsorption capacity. The adsorption process of the thermally modified slag was well described by the Elovich kinetic model and the Langmuir isotherm model. The maximum adsorption capacity calculated from the Langmuir model reached 13.62 mg/g. Scanning electron microscopy indicated that the surface of the modified slag was cracked and that the texture became loose after heating. The surface area and pore volume did not change after thermal modification. In the treatment of domestic wastewater, the modified slag bed(35.5 kg) removed phosphate effectively and operated for 158 days until the effluent P rose above the limit concentration of 0.5 mg/L. The phosphate fractionation method, which is often applied in soil research, was used to analyze the phosphate adsorption behavior in the slag bed. The analysis revealed that the total contents of various Ca–P forms accounted for 81.4%–91.1%, i.e., Ca10–P 50.6%–65.1%, Ca8–P 17.8%–25.0%,and Ca2–P 4.66%–9.20%. The forms of Al–P, Fe–P, and O–P accounted for only 8.9%–18.6%. The formation of Ca10–P precipitates was considered to be the main mechanism of phosphate removal in the thermally modified slag bed. | Jian Yu Wenyan Liang Li Wang Feizhen Li Yuanlong Zou Haidong Wang | 2015 | Journal of Environmental Sciences2015,27,5: | 13 |
| 14 | Occurrence and distribution of hexabromocyclododecane in sediments from seven major river drainage basins in China显示文摘The concentrations and geographical distribution of hexabromocyclododecane (HBCD) were investigated in 37 composite surface sediments from seven major river drainage basins in China, including Yangtze River, Yellow River, Pearl River, Liaohe River, Haihe River, Tarim River and Ertix River. The detection frequency of HBCD was 54%, with the concentrations ranged from below limit of detection (LOD) to 206 ng/g dry weight. In general, the geographical distribution showed increasing trends from the upper reaches to the lower reaches of the rivers and from North China to Southeast China. Compared to other regions in the world, the average concentration of HBCD in sediments from Yangtze River drainage basin was at relatively high level, whereas those from other six river drainage basins were at lower or similar level. The highest HBCD concentration in sediment from Yangtze River Delta and the highest detection frequency of HBCD in Pearl River drainage basins suggested that the industrial and urban activities could evidently affect the HBCD distribution. HBCD diastereoisomer profiles showed that γ-HBCD dominated in most of the sediment samples, followed by α- and β-HBCD, which was consistent with those in the commercial HBCD mixtures. Further risk assessment reflected that the average inventories of HBCD were 18.3, 5.87, 3.92, 2.50, 1.77 ng/cm 2 in sediments from Pearl River, Haihe River, Tarim River, Yellow River and Yangtze River, respectively. | Honghua Li Hongtao Shang Pu Wang Yawei Wang Haidong Zhang Qinghua Zhang Guibin Jiang | 2013 | Journal of Environmental Sciences2013,25,1: | 11 |
| 15 | Quantitative study on influences of terraced field construction and check-dam siltation on soil erosion显示文摘为了学习 terraced 的影响,在一个分水岭的土壤侵蚀上回答建设和检查水坝 siltation ,我们包括 terraced 领域,斜坡农田,陡峭斜坡的草地,和水坝农田为黄土高原多山溪谷的区域造了一个简化分水岭模型,并且定义分水岭的三个状态(即,先驱,中介,和高潮阶段,分别地)。然后,在各种各样的阶段的分水岭土壤侵蚀 moduli 被使用一个修订通用土壤损失方程学习。我们的结果证明先驱和高潮阶段是分水岭 soil-and-water 保存和控制的极端状态;在先驱阶段,土壤侵蚀模量是 299.56 t 牵 ? 畢湲 ? 潦敲瑳 ? 潦 ? 敲汣浡瑡潩 ? 氠慥楤杮琠? 桴 ? 敤牣慥敳漠 ? 牡潢 ? 潰汬湥愠 ? ‵慫?? 湩挠牯 ? 牡慥? 景琠敨夠湡獧慨 ? 畣瑬牵吗? | GAO Haidong LI Zhanbin LI Peng JIA Lianlian ZHANG Xiang | 2012 | Journal of Geographical Sciences2012,22,5: | 10 |
| 16 | Fissure evolution and evaluation of pressure-relief gas drainage in the exploitation of super-remote protected seams显示文摘Based on nonlinearity contact theory and the geological structure of the Xieqiao Coal Mine in the newly developed Huainan coal field,rock movements,mining fissures and deformation of overlying strata were simulated by using the interface unit of FLAC3D to evaluate the pressure-relief gas drainage in the exploitation of super-remote protected seams.The simulation indicates that the height of the water flowing fractured zone is 54 m in the overlying strata above the protective layer.The maximum relative swelling deformation of the C13 coal seam is 0.232%,while the mining height is 3.0 m and the distance from the B8 roof to the C13 floor is 129 m,which provides good agreement with a similar experiment and in situ results.The feasibility of exploitation of a super-remote protective coal seam and the performance of the pressure-relief gas drainage in a super-remote protected layer are evaluated by comparisons with practice projects.It demonstrates that the relieved gas in the super-remote protected layers could be better drained and it is feasible to exploit the B8 coal seam before the C13 super-remote protected coal seam.The method is applicable for the study of rock movements,mining fissures and deformation of the overburden,using the interface unit to analyze the contact problems in coal mines. | LIU, Hongyong CHENG, Yuanping ZHOU, Hongxing WANG, Feng CHEN, Haidong | 2010 | Mining Science and Technology2010,20,2: | 10 |
| 17 | Enhanced electrochemical performance in lithium ion batteries of a hollow spherical lithium-rich cathode material synthesized by a molten salt method显示文摘高电压有空球形的结构的分层的 Li1.2Ni0.16Co0.08Mn0.56O2 阴极材料被熔融盐的方法在 NaCl 流动综合了。由 X 光检查衍射和扫描电子显微镜学的描述证实了它的结构并且证明同样准备的粉末由小、同质地大小的空范围(11.5 m ) 组成。展出的材料首先提高了率能力和高度周期效率由于第二等的粒子的好分散。Galvanostatic 在不同温度骑车(20, 40,和 60 ?瑬湩 ? 湩猠汥' 虡 N 敶攠捴楨杮漠 ? 桴 ? 湚 ? 剎挠牯獥舀 ? 销吗?? | Xin He Jun Wang Richard Kloepsch Steffen Krueger Haiping Jia Haidong Liu Britta Vortmann Jie Li | 2014 | Nano Research2014,7,1: | 9 |
| 18 | Daily Visibility and Hospital Admission in Shanghai, China显示文摘Objective The study is to investigate the associations between visibility, major air pollutants and daily counts of hospital admission in Shanghai, China. Methods Daily data on hospital admission, visibility, and air pollution during 2005‐2008 were obtained from the Shanghai Insurance Bureau (SHIB), Shanghai Meteorological Bureau, and Shanghai Environmental Monitoring Center, respectively. The generalized additive model (GAM) with penalized splines was used to examine the associations between daily visibility and hospital admission. Results Among various pollutants, PM 2.5 showed strongest correlation with visibility. Decreased visibility was significantly associated with increased risk of hospital admission in Shanghai. An inter‐quartile range decrease in the 2‐day (L01) moving average of visibility corresponded to 3.66% (95%CI: 1.02%, 6.31%), 4.06% (95%CI: 0.84%, 7.27%), and 4.32% (95%CI: 1.67%, 6.97%) increase of total, cardiovascular, and respiratory hospitalizations, respectively. Conclusion Our analyses provide the first piece of evidence in China, demonstrating that decreased visibility has an effect on hospital admission, and this finding strengthens the rationale for further limiting air pollution levels in Shanghai. | GE WenZhen CHEN RenJie SONG WeiMin KAN HaiDong | 2011 | Biomedical and Environmental Sciences2011,24,2: | 9 |
| 19 | Geochronology and mineralogy of the Weishan carbonatite in Shandong province, eastern China显示文摘The Weishan REE deposit is located at the eastern part of North China Craton(NCC), western Shandong Province. The REE-bearing carbonatite occur as veins associated with aegirine syenite. LA-ICP-MS bastnaesite Th-Pb ages(129 Ma) of the Weishan carbonatite show that the carbonatite formed contemporary with the aegirine syenite. Based on the petrographic and geochemical characteristics of calcite, the REEbearing carbonatite mainly consists of Generation-1 igneous calcite(G-1 calcite) with a small amount of Generation-2 hydrothermal calcite(G-2 calcite). Furthermore, the Weishan apatite is characterized by high Sr, LREE and low Y contents, and the carbonatite is rich in Sr, Ba and LREE contents. The δ^(13)Cv-PDB(-6.5‰ to -7.9‰) and δ^(13)OV-SMOW(8.48‰-9.67‰) values are similar to those of primary, mantlederived carbonatites. The above research supports that the carbonatite of the Weishan REE deposit is igneous carbonatite. Besides, the high Sr/Y, Th/U, Sr and Ba of the apatite indicate that the magma source of the Weishan REE deposit was enriched lithospheric mantle, which have suffered the fluid metasomatism. Taken together with the Mesozoic tectono-magmatic activities, the NW and NWW subduction of Izanagi plate along with lithosphere delamination and thinning of the North China plate support the formation of the Weishan REE deposit. Accordingly, the mineralization model of the Weishan REE deposit was concluded: The spatial-temporal relationships coupled with rare and trace element characteristics for both carbonatite and syenite suggest that the carbonatite melt was separated from the CO_2-rich silicate melt by liquid immiscibility. The G-1 calcites were crystallized from the carbonatite melt, which made the residual melt rich in rare earth elements. Due to the common origin of G-1 and G-2 calcites, the REE-rich magmatic hydrothermal was subsequently separated from the melt. After that, large numbers of rare earth minerals were produced from the magmatic hydrothermal stage. | Chen Wang Jianchao Liu Haidong Zhang Xinzhu Zhang Deming Zhang Zhixuan Xi Zijie Wang | 2019 | Geoscience Frontiers2019,10,2: | 9 |
| 20 | Research progress on squeeze casting in China显示文摘Squeeze casting is a technology with short route,high efficiency and precise forming,possessing features of casting and plastic processing.It is widely used to produce high performance metallic structural parts.As energy conservation and environmental protection concerns have risen,lightweight and high performance metal parts are urgently needed,which accelerated the development of squeeze casting technology over the past two decades in China.In this paper,research progress on squeeze casting alloys,typical parts manufacturing and development of squeeze casting equipment in China are introduced.The future trend and development priorities of squeeze casting are discussed. | Li Yuanyuan Zhang Weiwen Zhao Haidong You Dongdong Zhang Datong Shao Ming Zhang Wen | 2014 | China Foundry2014,11,4: | 8 |