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全新世以来察尔汗盐湖沉积物的OSL年代学研究

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盐湖研究 2024年第4期32卷 40-45页

作者：周震鑫卢晓航杨建文苏维刚马云麒马喆韩凤清中国科学院青海盐湖研究所中国科学院盐湖资源综合高效利用重点实验室青海西宁810008 中国-巴基斯坦地球科学研究中心中国科学院-巴基斯坦高等教育委员会巴基斯坦伊斯兰堡45320 中国科学院大学北京100049 青海大学青海西宁810016

察尔汗盐湖沉积物记录了柴达木盆地晚更新世以来的环境演化信息,但全新世以来沉积剖面的研究比较稀少且相关年代数据也比较缺乏。在察尔汗盐湖别勒滩区段东部,别勒滩区段西部和达布逊区段东部的沉积剖面中各发现2层细碎屑夹层,采集了相... 详细信息

察尔汗盐湖沉积物记录了柴达木盆地晚更新世以来的环境演化信息,但全新世以来沉积剖面的研究比较稀少且相关年代数据也比较缺乏。在察尔汗盐湖别勒滩区段东部,别勒滩区段西部和达布逊区段东部的沉积剖面中各发现2层细碎屑夹层,采集了相应的光释光样品,以研究察尔汗盐湖全新世时期的沉积年代。结果表明,察尔汗盐湖达布逊区段东部剖面(DBX)的2个碎屑层分别形成于6.2 ka(8.90 m)和2.8 ka(1.96 m),别勒滩区段东部剖面的2个碎屑层分别形成于2.9 ka(3.20 m)和0.9 ka(1.40 m),别勒滩区段西部剖面的2个碎屑层分别形成于2.4 ka(3.10 m)和0.7 ka(1.50 m)。由于晚第四纪盐湖沉积松散且易溶造成样品的成分及来源复杂等影响,造成了剖面OSL数据远小于14C、U-Th测年数据(8~9 ka)。3个剖面沉积速率计算表明,察尔汗盐湖达布逊区段沉积速率大于别勒滩区段,而别勒滩区段东部的沉积速率高于西部,察尔汗盐湖与东台吉乃尔盐湖的沉积速率整体上保持一致。

关键词：察尔汗盐湖光释光测年全新世沉积速率

The wind tunnel tests of wind pressure acting on the derrick of deepwater semi-submersible drilling platform

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The wind tunnel tests of wind pressure acting on the derrick...

Typical ulcerative colitis treated by herbs-partitioned moxibustion:A case report

2011 2nd International Conference on Advances in Energy Engineering(ICAEE)

作者： Gangjun Zhai zhe ma Hang Zhu Deepwater Engineering Research Centre Dalian University of Technology Shipbuilding technology research institute

The increasing importance of the sustainability challenge in ocean engineering has led to the development of floating ocean *** this study,according to the 1/100 scale model of the HYSY-981 semi-submersible platform,the investigation on the wind resistant properties of the platform is measured through wind tunnel *** wind pressure coefficients of the derrick in 0-90° wind directions were obtained by *** distribution of the wind pressures on windward side of the derrick was *** results may serve as a reference on the design for wind loads acting on the platform.

关键词： semi-submersible platform wind tunnel test wind pressure

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World Journal of Clinical Cases 2020年第8期8卷 1515-1524页

作者： Ya-Ying Lin Ji-Meng Zhao Ya-Jie Ji zhe ma Han-Dan zheng Yan Huang Yun-Hua Cui Yuan Lu Huan-Gan Wu Shanghai Research Institute of Acupuncture and Meridian Shanghai University of Traditional Chinese MedicineShanghai 200030China Surgery of Traditional Chinese Medicine Yueyang Hospital of Integrative Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 200437China

BACKGROUND Ulcerative colitis(UC),also known as chronic nonspecific UC,is an inflammatory bowel disease characterized by diffuse colonic mucosal *** incidence and prevalence of UC have risen markedly,and the disease seriously affects the quality of life of patients,and poses a great burden on the world health care infrastructure and *** SUMmaRY We present a 60-year-old man who had ulcerative colitis for more than 10 years,with recurrent abdominal pain,bloody diarrhea with mucopurulent *** treatments with sulfasalazine,mesalazine,and traditional Chinese medicine were not effective,and herbs-partitioned moxibustion(HPM)was then applied at“Zhongwan”(RN12),“Tianshu”(ST25),and“Qihai”(RN6)once a day for about 30 min,3 times per week,for 6 *** main clinical symptoms of abdominal pain,bloody diarrhea with mucopurulent stool gradually improved,and the mucosa had nearly healed,as observed under endoscopy by the 6th *** patient’s condition was alleviated without relapsing during the subsequent 3-mo follow-up *** showed a significant effect in the treatment of ulcerative colitis in this case,and the effect would help the patient to maintain remission for at least 3 *** A series of symptoms of this UC patient significantly improved with the treatment of HPM.

关键词： Herbs-partitioned moxibustion Ulcerative colitis Complementary and

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“到底”的去范畴化考察

武汉理工大学学报（社会科学版） 2009年第3期22卷 148-152页

作者：马喆暨南大学中文系广东广州510632

"VP到底"可表空间、过程或程度,"到底VP"可表主观时间和确认等意义。导致"VP到底"语义差异的主要原因是V的语义特征,导致"到底VP"用法差异的主要原因是VP的时体特征。此外,"到底"和"说"等言说义动词紧密结合,还可表总结及本质分析的篇... 详细信息

"VP到底"可表空间、过程或程度,"到底VP"可表主观时间和确认等意义。导致"VP到底"语义差异的主要原因是V的语义特征,导致"到底VP"用法差异的主要原因是VP的时体特征。此外,"到底"和"说"等言说义动词紧密结合,还可表总结及本质分析的篇章功能。汉语"到底"的语义演变,充分体现了汉语方所成分去范畴化的连续性,以及空间认知模式在汉语表达中的重要作用。

关键词： “到底” 语义特征时体特征去范畴化

A 128×128 SPAD LiDAR sensor with column-parallel 25 ps resolution TA-ADCs

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Journal of Semiconductors 2024年第8期45卷 34-40页

作者： Na Tian zhe Wang Kai ma Xu Yang Nan Qi Jian Liu Nanjian Wu Runjiang Dou Liyuan Liu State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100049China Center of materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

This paper presents a design of single photon avalanche diode(SPAD)light detection and ranging(LiDAR)sensor with 128×128 pixels and 128 column-parallel time-to-analog-merged-analog-to-digital converts(TA-ADCs).Unlike the conventional TAC-based SPAD LiDAR sensor,in which the TAC and ADC are separately implemented,we propose to merge the TAC and ADC by sharing their capacitors,thus avoiding the analog readout noise of TAC’s output buffer,improving the conversion rate,and reducing chip *** reverse start-stop logic is employed to reduce the power of the *** in a 180 nm CMOS process,our prototype sensor exhibits a timing resolution of 25 ps,a DNL of+0.30/−0.77 LSB,an INL of+1.41/−2.20 LSB,and a total power consumption of 190 mW.A flash LiDAR system based on this sensor demonstrates the function of 2D/3D imaging with 128×128 resolution,25 kHz inter-frame rate,and sub-centimeter ranging precision.

关键词： 3D imaging CMOS imagers direct time-of-flight(dTOF) time-to-analog converter(TAC)

Surface Reconstruction of Scanned Human Body Using Radial Basis Functions and Adaptive Partition of Unity

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Journal of Shanghai Jiaotong university(Science) 2009年第3期14卷 261-265页

作者：吕方梅习俊通马登哲 School of Mechanical Engineering Shanghai Jiaotong University College of Mechanical Engineering University of Shanghai for Science and Technology

It is important to reconstruct a continuous surface representation of the point cloud scanned from a human body. In this paper a new implicit surface method is proposed to reconstruct the human body surface from the points based on the combination of radial basis functions （RBFs） and adaptive partition of unity （PoU）. The whole 3D domain of the scanned human body is firstly subdivided into a set of overlapping subdomalns based on the improved octrees. The smooth local surfaces are then computed in the subdomalns based on RBFs. And finally the global human body surface is reconstructed by blending the local surfaces with the adaptive PoU functions. This method is robust for the surface reconstruction of the scanned human body even with large or non-uniform point cloud which has a sharp density variation.

关键词： surface reconstruction human body radial basis functions (RBFs) partition of unity (PoU)

Unveiling the mechanisms of Fe(Ⅲ)-loaded chitosan composite(CTS-Fe)in enhancing anaerobic digestion of waste activated sludge

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Journal of Environmental Sciences 2024年第4期138卷 200-211页

作者： Boaiqi Zhang Ziwen Zhao Ruima Nan Chen zhe Kong Zhongfang Lei zhenya Zhang Graduate School of Life and Environmental Sciences University of Tsukuba1-1-1 TennodaiTsukubaIbaraki 305-8572Japan The Key Laboratory of Water and Sediment Sciences Ministry of Education/State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems/College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China South China Institute of Environmental Sciences Ministry of Ecology and EnvironmentGuangzhou 510345China School of Water Resources and Environment China University of Geosciences(Beijing)Beijing 100083China School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China

Anaerobic digestion(AD)of waste activated sludge(WAS)is usually limited by the low generation efficiency of ***(Ⅲ)-loaded chitosan composite(CTS-Fe)have been reported to effectively enhanced the digestion of WAS,but its role in promoting anaerobic sludge digestion remains *** present study,the effects of CTS-Fe on the hydrolysis and methanogenesis stages of WAS anaerobic digestion were *** addition of CTSFe increased methane production potential by 8%-23%under the tested conditions with the addition of 5-20 g/L ***,the results demonstrate that the addition of CTS-Fe could effectively promote the hydrolysis of WAS,evidenced by lower protein or polysaccharides concentration,higher soluble organic carbon in rector adding CTS-Fe,as well as the increased activity of extracellular hydrolase with higher CTS-Fe ***,the enrichment of Clostridia abundance(iron-reducing bacteria(IRBs))was observed in CTS-Fe adding reactor(8.9%-13.8%),which was higher than that in the control reactor(7.9%).The observation further suggesting the acceleration of hydrolysis through dissimilatory iron reduction(DIR)process,thus providing abundant substrates for ***,the presence of CTS-Fe was inhibited the acetoclastic and hydrogenotrophic methanogenesis process,which could be ascribed to the Fe(Ⅲ)act as electron acceptor coupled to methane for anaerobic ***,coenzyme F420 activity in the CTS-Fe added reactor was 34.9% lower than in the blank,also abundance of microorganisms involved in hydrogenotrophic methanogenesis was *** from this study could provide theoretical support for the practical applications of CTS-Fe.

关键词： Chitosan-Fe(Ⅲ)composite Methanogenesis Dissimilatory iron reduction Enzyme activity Microbial community structure

基于CFD流固耦合理论的海上浮式结构物水动力性能分析

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船舶力学 2017年第8期21卷 950-959页

作者：马哲程勇翟钢军大连理工大学深海工程研究中心辽宁大连116024 江苏科技大学船舶与海洋工程学院江苏镇江212003

文章利用流体动力学控制方程和结构运动方程的耦合理论,在具有造消波功能的2D数值水槽中实现了海上浮式结构物在波浪中运动过程的数值模拟。以系泊式浮式方箱防波堤作为工程应用实例,分别采用梯形法和二、三阶单步数值迭代法对浮体的动... 详细信息

文章利用流体动力学控制方程和结构运动方程的耦合理论,在具有造消波功能的2D数值水槽中实现了海上浮式结构物在波浪中运动过程的数值模拟。以系泊式浮式方箱防波堤作为工程应用实例,分别采用梯形法和二、三阶单步数值迭代法对浮体的动力特性进行数值分析,并与基于势流理论的边界元法的结果做对比,分析后发现在波浪条件下梯形法和二、三阶单步法的计算精度相当,结果收敛,且与边界元法结果吻合较好,满足要求。该文提出了一种新的全自由度分块结构移动网格技术,实现了浮体所有方向的联合运动,而且网格不发生任何扭曲现象,计算时间、网格划分和精度要求都得到了较好的控制。

关键词：流固“全耦合” 梯形法二、三阶单步法全自由度分块结构移动网格技术

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超大型浮式储油船的水弹性响应预报

振动与冲击 2014年第1期33卷 141-148页

作者：翟钢军程勇马哲大连理工大学深海工程研究中心辽宁大连116024

海上石油储备基地的主要结构—超大型浮式储油船属于超大型浮式结构物(VLFS),对其水弹性响应分析是研究设计中的一个重要环节。采用正弦振型函数,将结构运动产生的辐射势及水弹性响应根据模态形式进行展开叠加,然后通过对边界积分方程... 详细信息

海上石油储备基地的主要结构—超大型浮式储油船属于超大型浮式结构物(VLFS),对其水弹性响应分析是研究设计中的一个重要环节。采用正弦振型函数,将结构运动产生的辐射势及水弹性响应根据模态形式进行展开叠加,然后通过对边界积分方程应用三维势流理论中的格林函数法,其中由于结构的对称性,只建立储油船的1/4数值模型,求出速度势及流体压力,最后将其代入结构水弹性运动方程。探讨了广义水动力参数随水深和相对波长的变化规律,进一步计算不同水深及波长时储油船的水弹性响应、底板变形及其内部弯矩,为今后的研究提供理论依据和方法。

关键词：超大型浮体水弹性响应模态分析法格林函数法