检索结果-南通市图书馆

A Preliminary Review of the Metallogenic Regularity of Nickel Deposits in China

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2015年第4期89卷 1375-1397页

作者： SUN Tao wang Denghong QIAN Zhuangzhi FU Yong CHEN Zhenghui LOU debo School of Resource Environment and Earth Sciences Yunnan University MRL Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences MOE Key Laboratory of Western China's Mineral Resources and Geological Engineering College of Earth Science and ResourcesChang'an University College of Resource and Environmental Engineering Guizhou University

The nickel deposits mainly distributed in 19 provinces and autonomous regions in China are 339 ore deposits/occurrences, including 4 super large-scale deposits, 14 large-scale deposits, 26 middle- scale deposits, 75 small-scale deposits, and 220 mineralized occurrences. The prediction types of mineral resources of nickel deposits are magmatic type, marine sedimentary type and regolith type. The formation age is from the Neoarchean to the Cenozoic with two peaks in the Neoproterozoic and the late Paleozoic. The nickel deposits formed in the Neoproterozoic are located on the margin of the North China Block and Yangtze Block, and those formed in the late Paleozoic are mainly distributed in the Central Asian Orogenic Belt （CAOB）, Emeishan and the Tarim Large Igneous Provinces （LIPs）. Magmatic nickel deposits are mainly related with broken-up continental margin, post-collision extension of the orogenic belt and mantle plume. According to different tectonic backgrounds and main characteristics of magmatism, the Ni-Cu-Co-PGE metallogenie series types of ore deposits related with mantle-derived mafic-ultramafic rocks can be divided into 4 subtypes：（1） the Ni-Cu-Co- PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in the broken-up continental margin, （2） the Ni-Cu-Co-PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in mantle plume magmatism, （3） the Ni-Cu-Co- PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in the subduction of the orogenic belt, and （4） the Ni-Cu-Co-PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in post-collision extension of the orogenic belt. We have discussed in this paper the typical characteristics and metaliogenic models for Neoproterozoic Ni-Cu-（PGE） deposits related with broken-up continental margin, Cambrian marine sedimentary Ni-Mo-V deposits relat

关键词： prediction type of mineral resources metallogenic condition metallogenic regularity,nickel deposits China

在线全文

学校读者我要写书评

暂无评论

泰国A工区火山岩储层地震预测及展布规律

石化技术 2017年第9期24卷 92-92页

作者：王德波中原油田勘探开发研究院河南郑州450000

以地震资料为基础,结合岩性、测井和生产动态等分析资料开展了火山岩地震预测与裂缝模拟,明确工区内火山岩储层的展布规律,有效指导了工区的勘探开发。

关键词：火山岩储层地震预测裂缝模拟

Evolution of Asian drying since 30 Ma revealed by clay minerals record in the West Pacific and its tectonic-climatic forcing

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2023年第6期66卷 1365-1382页

作者： Yi TANG Shiming WAN debo ZHAO Zhaojie YU Zhaokai XU Jin ZHANG Zehua SONG Mengjun LI Hualong JIN Wenjun JIAO Hongkun DONG Anchun LI Key Laboratory of Marine Geology and Environment Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Geology Qingdao National Laboratory for Marine Science and TechnologyQingdao 266061China University of Chinese Academy of Sciences Beijing 100049China

As the second largest dust source on the globe,the tectonic and climatic evolution of continental Asia has an important impact on regional and global climate *** West Pacific is the main sediment sink for eolian dust transported eastward from the Asian *** minerals,as the major fine-grained weathering products of continental rocks,can be readily transported by wind or currents over long distances and thus have been widely used in the reconstruction of paleoclimate and weathering ***,the overall evolutionary tendency and response mechanism of clay mineral records over large spatial and long timescales across Asia remain ***,two continuous and high-resolution clay mineral records since 30 Ma were reconstructed from sediments at Deep Sea Drilling Program(DSDP)Sites 292 and 296 in the Philippine *** minerals and Sr-Nd isotope compositions were used to constrain provenance and reconstruct the drying history of the dust source region since the *** results show that the clay-sized detrital sediments in the Philippine Sea are a mixture of Asian eolian dust and volcanic materials from the West Pacific *** on the clay mineral compositions and eolian flux,we reveal that the Asian interior has been continuously drying since the late Oligocene and that stepwise enhanced aridification occurred at approximately 20,14,7,and 3 *** with other regions of the world,the relative contents of illite and chlorite increased more dramatically in Asia during the late Cenozoic,and the inconsistency became more obvious at approximately 20 *** 3 Ma,illite and chlorite have increased consistently across the *** with the Asian tectonic and climatic history,we suggest that the increase in illite and chlorite from Asia between 20 and 3 Ma was mainly in response to the uplift of the Himalayan-Tibetan Plateau,whereas after 3 Ma,it was primarily controlled by global cooling driven by the expansion of the Arctic ice shee

关键词： Clay minerals Sr-Nd isotopes Sediment provenance Eolian dust West Pacific Late Cenozoic

Enhanced weathering input from South Asia to the Indian Ocean since the late Eocene

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2023年第3期68卷 305-313,M0004页

作者： Zehua Song Shiming Wan Christophe Colin Christian France-Lanord Zhaojie Yu Arnaud Dapoigny Hualong Jin Mengjun Li Jin Zhang debo Zhao Xuefa Shi Anchun Li Key Laboratory of Marine Geology and Environment Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Geology Qingdao National Laboratory for Marine Science and TechnologyQingdao 266061China UniversitéParis-Saclay Centre National de la Recherche Scientifique(CNRS)Géosciences Paris-Saclay(GEOPS)Orsay 91405France Center for Excellence in Quaternary Science and Global Change Chinese Academy of SciencesXi’an 710061China Centre de Recherches Pétrographiques et Géochimiques(CRPG) Centre National de la Recherche Scientifique(CNRS)-Universitéde LorraineVandoeuvre les Nancy 54501France Laboratoire des Sciences du Climat et de l’Environnement LSCE/IPSLCEA-CNRS-UVSQUniversitéParis-SaclayGif-sur-Yvette 91191France Key Laboratory of Marine Sedimentology and Environmental Geology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China

nhanced silicate weathering induced by the uplift of the Himalayan-Tibetan Plateau(HTP)has been considered as the major cause of pCO_(2) decline and Cenozoic ***,this hypothesis remains to be validated,largely due to the lack of a reliable reconstruction of the HTP weathering ***,we present a 37-million-year record of the difference in the seawater radiogenic neodymium isotopic composition(△ε_(Nd))of Ocean Drilling Program(ODP)sites and Fe-Mn crusts between the northern and central Indian Ocean,which indicates the contribution of regional weathering input from the South Asian continent to the Indian *** results show a long-term increase in △ε_(Nd) and thus provide the first critical evidence of enhanced South Asian weathering input since the late *** evolution coincided well with major pulses of surface uplift in the HTP and global climatic *** foraminiferal eNd record suggests that tectonic uplift and silicate weathering in South Asia,especially in the Himalayas,might have played a significant role in the late Cenozoic cooling.

关键词： South Asian weathering input Himalayan-Tibetan Plateau uplift Cenozoic global cooling Foraminiferal eNd record Indian Ocean ODP Site 758

在线全文

学校读者我要写书评

暂无评论

细胞焦亡在新生儿感染性疾病中的研究进展

医学综述 2024年第1期30卷 19-23页

作者：许德博孟琼广东医科大学广东湛江524000 广东省第二人民医院儿科广州510317

新生儿感染性疾病是导致新生儿死亡的主要原因之一,目前临床关于新生儿感染性疾病的诊断缺乏特异性,导致病情进展迅速。细胞焦亡是一种可释放炎症因子的细胞程序性死亡,参与新生儿感染性疾病的发病过程并可加重体内炎症反应,同时也会不... 详细信息

新生儿感染性疾病是导致新生儿死亡的主要原因之一,目前临床关于新生儿感染性疾病的诊断缺乏特异性,导致病情进展迅速。细胞焦亡是一种可释放炎症因子的细胞程序性死亡,参与新生儿感染性疾病的发病过程并可加重体内炎症反应,同时也会不同程度地损害组织和器官,抑制细胞焦亡则可减轻局部组织炎症、改善患儿临床症状。因此,深入研究细胞焦亡在新生儿感染性疾病中的作用机制,可以为疾病的临床诊疗提供新思路,改善患儿预后。

关键词：感染性疾病细胞焦亡新生儿

600 MW机组燃煤锅炉30%深度调峰下现场试验研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

广东电力 2024年第3期37卷 109-114页

作者：闫超李德波廖伟辉陈兆立阙正斌陈智豪阚伟民余冯坚陈锦攀广东红海湾发电有限公司广东汕尾516600 南方电网电力科技股份有限公司广东广州510080 南方电网广东肇庆供电局广东肇庆526060 中国南方电网有限责任公司广东广州510663 广东省节能中心广东广州510030 广东电网有限责任公司电力科学研究院广东广州510080

随着新能源发电机组装机容量不断增加,需要提高电网的新能源消纳能力,因此对火电机组的调峰要求越来越高。为了研究燃煤机组深度调峰的能力及影响,基于广东省内某600 MW机组燃煤锅炉,开展低负荷稳燃现场试验研究。试验结果表明:该锅炉... 详细信息

随着新能源发电机组装机容量不断增加,需要提高电网的新能源消纳能力,因此对火电机组的调峰要求越来越高。为了研究燃煤机组深度调峰的能力及影响,基于广东省内某600 MW机组燃煤锅炉,开展低负荷稳燃现场试验研究。试验结果表明:该锅炉可以在30%额定负荷(180 MW)条件下稳定运行,且整个过程中现有的各系统经过调控后基本能正常工作;在降负荷过程和低负荷稳定运行过程中,机组环保参数无超标,各污染物排放指标符合环保要求。研究结果可作为机组深度调峰依据,为燃煤锅炉低负荷运行控制提供参考。

关键词：调峰燃煤锅炉低负荷系统运行热效率污染物

Fourth-generation ceramic-on-ceramic total hip arthroplasty in patients of 55 years or younger： short-term results and complications analysis

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2014年第12期127卷 2310-2315页

作者： wang Weiguo Guo Wanshou Yue debo Shi Zhencai Zhang Nianfei Liu Zhaohui Sun Wei wang Bailiang Li Zirong Department of Joint Surgery China-Japan Friendship HospitalBeijing 100029China

Background The incidence of total hip replacement in the younger and more active patients is ever *** ceramic-on-ceramic （COC） bearing was developed to reduce wear debris-induced osteolysis and loosening and to improve the longevity of hip *** studies have reported the clinical results and complications of the new zirconia-toughened ceramic total hip arthroplasty （THA）.Methods A consecutive series of 132 young patients （177 hips） that underwent primary cementless THAs between January 2010 and December 2012 were included in this *** arthroplasties all had fourth-generation COC bearings performed through a posterolateral *** average age was （41.8±8.3） years （ranging from 22 to 55 years）,and the mean follow-up period was （24.5±9.4） months （ranging from 12 to 47 months）.The results were evaluated both clinically and *** hip score （HHS） was determined before surgery and at the time of each *** of postoperative groin or thigh pain and squeaking were *** complications such as dislocations,periprosthetic fractures,and ceramic components fractures were diagnosed and treated in *** The average HHSs improved from preoperative 60.3±10.7 （ranging from 29 to 76） to 91.0±5.1 （ranging from 74 to 100） at the final follow-up （t=-45.064,P ＜0.05）,and 97.7％ of cases were scored as excellent and good *** the last follow-up,incidental inguinal pain was found in three hips （1.7％） and thigh pain in 11 hips （6.2％）.Radiographs showed a high rate of new bone formation around the acetabular and stem *** obvious osteolysis or prosthesis loosening was *** occurred in six hips （3.4％）：posterior dislocation in two hips （1.1％）,periprosthetic femoral fracture in one hip （0.6％）,asymptomatic squeaking in two hips （1.1％）,and ceramic liner fracture in one hip （0.6％）.Conclusions The fourth-generation COC THA showed excellent clinical results in younger active patients w

关键词： arthroplasty hip ceramic-on-ceramic complication

东濮凹陷不同环境烃源岩评价及生排烃特征研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

断块油气田 2012年第1期19卷 35-38页

作者：陈洁鹿坤冯英苑克红王德波崔红张文洁中国石化中原油田分公司勘探开发科学研究院河南濮阳457001 中国石化中原石油勘探局对外经济贸易总公司河南濮阳457001

东濮凹陷不同环境烃源岩生烃潜力差别巨大,文中对不同环境烃源岩有机地球化学特征和生排烃特征进行了研究。研究结果表明:东濮北部咸水环境烃源岩为好—优质烃源岩,北部半咸水环境烃源岩为中等—好烃源岩,南部淡水—微咸水环境烃源岩最... 详细信息

东濮凹陷不同环境烃源岩生烃潜力差别巨大,文中对不同环境烃源岩有机地球化学特征和生排烃特征进行了研究。研究结果表明:东濮北部咸水环境烃源岩为好—优质烃源岩,北部半咸水环境烃源岩为中等—好烃源岩,南部淡水—微咸水环境烃源岩最差,为差—中等烃源岩。不同环境烃源岩均有2次生烃和2次排烃,第一期生烃为镜质体反射率Ro小于0.7%,该期主要是可溶有机质直接转化成未熟或者低熟油,第二期为Ro大于0.7%,主要以干酪根热降解生成成熟油为主。东濮凹陷不同环境烃源岩评价及生排烃特征的研究,对东濮凹陷下一步勘探具有指导意义。

关键词：沉积环境烃源岩评价生排烃特征东濮凹陷

粮饲双审玉米新品种‘兆玉215’的选育及特征特性分析

在线全文

学校读者我要写书评

暂无评论

分子植物育种 2024年第4期22卷 1213-1221页

作者：邹成林郑德波韦肖宇谭贤杰蒋维萍韦慧黄爱花韦新兴翟瑞宁黄开健谭华广西壮族自治区农业科学院玉米研究所南宁530007 广西兆和种业有限公司南宁530007

粮饲通用型玉米品种在保障国家粮食安全和促进畜牧业发展方面具有重要意义。为培育适合热带地区种植的粮饲通用型玉米品种,为粮饲通用型玉米品种在广西种植提供参考,本研究以Q901为母本,以P1107为父本,选育出玉米新品种‘兆玉215’。广... 详细信息

粮饲通用型玉米品种在保障国家粮食安全和促进畜牧业发展方面具有重要意义。为培育适合热带地区种植的粮饲通用型玉米品种,为粮饲通用型玉米品种在广西种植提供参考,本研究以Q901为母本,以P1107为父本,选育出玉米新品种‘兆玉215’。广西普通玉米区域试验表明‘兆玉215’两季平均籽粒产量为8030 kg/hm^(2),较对照品种‘桂单162’增产4.0%;生产试验表明‘兆玉215’两季平均籽粒产量为7740 kg/hm^(2),较对照品种增产6.4%。广西青贮玉米区域试验表明‘兆玉215’两季平均全株生物产量为55420 kg/hm^(2),较对照品种增产4.9%;生产试验表明‘兆玉215’两季平均全株生物产量为49587 kg/hm^(2),较对照品种增产7.4%。‘兆玉215’籽粒品质容重为795 g/L,粗蛋白含量8.50%,粗脂肪含量5.1%,粗淀粉含量72.40%,赖氨酸含量0.21%;全株品质粗蛋白含量7.18%,淀粉含量36.8%,中性洗涤纤维含量49.4%,酸性洗涤纤维含量15.3%,干物质含量30.4%。‘兆玉215’在青贮收获期高抗大斑病和茎腐病,抗小斑病和穗腐病。‘兆玉215’在2020年和2021年分别通过了广西普通玉米品种审定(审定号:桂审玉2020090号)和广西青贮玉米品种审定(审定号:桂审玉2021089号),是广西首批粒用和青贮双审定玉米品种,可作为粮饲通用型玉米品种在广西或其相似生态地区种植。

关键词：粮饲双审玉米兆玉215 选育特性