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从锡矿山矿田的古流障系统看锡矿山锑矿深边部的找矿方向

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中国有色金属学报 2013年第9期23卷 2621-2630页

作者：陈星霖吴延之中南大学有色金属成矿预测教育部重点实验室长沙410083 中南大学地球科学与信息物理学院长沙410083

通过分析14个矿床矿化点的分布资料,编制锡矿山锑矿田古成矿环境网络示意图,总结锡矿山锑矿床的14项基本成矿特点,归纳分析前人对本区锑矿成因的5种观点和相关依据,提出锡矿山矿田古环境系统,深流障,即深流环流障积成矿系统的新认识。... 详细信息

通过分析14个矿床矿化点的分布资料,编制锡矿山锑矿田古成矿环境网络示意图,总结锡矿山锑矿床的14项基本成矿特点,归纳分析前人对本区锑矿成因的5种观点和相关依据,提出锡矿山矿田古环境系统,深流障,即深流环流障积成矿系统的新认识。湘中晚古生代台内断陷盆地是成矿环境系统的重要地质基础,由西向东NE向5条深切基底的断裂构成断陷盆地的成矿环境主干,而以冷水江大断裂及其分支75号断裂表现尤为突出。锡矿山矿田构造展布、蚀变矿化、包体分析、化探异常,表明它们间存在叠合和耦合关系,并显示出矿田内存在一个由南西向北东,并有多处分支分叉的环境系统。矿田内众多矿体分布表明NE向主断裂带、F75及其3条分支断裂带与棋梓桥组、佘田桥组、刘家塘组3个层顶界面处为成矿的有利空间,而以佘田桥组顶界处规模最大,连续性最好,组成了完整的障积组合系统。盆地周边侵入岩体和深部可能的地幔柱,是盆内的主要热源,上升热矿水与下渗水的长期环流是盆地内成矿作用重要动力机制,分析并剔除了3种环流(垂向环流、双向环流、洞穴环流)的方式和机制。总结了鉴别古成矿环境系统的4大标志。针对矿田成矿系统环流分布特点,提交了马月山背斜至陈家排的6处有利找矿靶区。

关键词：锡矿山矿田古成矿环境系统深边部找矿

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月球表面巡视探测自主局部避障规划

控制理论与应用 2019年第12期36卷 2042-2046页

作者：邢琰刘祥滕宝毅毛晓艳北京控制工程研究所北京100190 空间智能控制技术国家级重点实验室北京100094

路径规划是月球表面巡视探测自主导航的重要功能,是提高地外天体表面探测效率和安全性的关键.国外已实现的地外天体表面自主路径规划方法以局部避障为主要目标,不考虑全局目标可达性和完备性,本文针对该问题,提出一种基于地形通过性定... 详细信息

路径规划是月球表面巡视探测自主导航的重要功能,是提高地外天体表面探测效率和安全性的关键.国外已实现的地外天体表面自主路径规划方法以局部避障为主要目标,不考虑全局目标可达性和完备性,本文针对该问题,提出一种基于地形通过性定量评价和目标可达的综合自主局部避障规划方法,通过对稠密地形数据进行可通过性能的综合评价,并考虑与目标的方位和距离,规划出能够到达目标的避障安全路径.该方法已经成功应用于我国"玉兔号"和"玉兔二号"月球车的自主导航中.

关键词：月球表面巡视探测自主导航局部避障规划

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多防线防御系统目标突防概率的计算

系统工程与电子技术 2005年第6期27卷 1061-1065页

作者：卢发兴吴玲王航宇海军工程大学兵器工程系湖北武汉430033

将排队论应用于双防线异类武器防御系统的突防过程分析和突防概率计算。给出了系统状态的通式,并分析了如何将系统处于某一状态的概率分解为若干独立事件的概率之和。给出了双防线异类武器防御系统的稳态方程组,和目标的突防概率公式,... 详细信息

将排队论应用于双防线异类武器防御系统的突防过程分析和突防概率计算。给出了系统状态的通式,并分析了如何将系统处于某一状态的概率分解为若干独立事件的概率之和。给出了双防线异类武器防御系统的稳态方程组,和目标的突防概率公式,在求解稳态方程组的基础上可得到目标对防御系统突防成功的概率。最后将分析思路推广到多防线异类武器防御系统。

关键词：排队论多道防线突防概率

Effects of Soluble Ions on Hydration of Calcined Flue Gas Desulphurization Gypsum

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Chinese Journal of Chemical Physics 2020年第6期33卷 764-768,I0003页

作者： Fu-xing Lin yan-chi Zhong Shu-feng yan Bi-fan Lin Jian-hua Wang Zhi-zhong Su College of Resources and Chemical Engineering Sanming UniversitySanming 365004China Fujian Engineering Research Center for Advanced Fluorine-containing Materials Sanming 365004China CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

The influence of various water soluble cations(K^+,Na^+,Ca^2+,Mg^2+)on the hydration of calcined flue gas desulphurization gypsum was *** results show that all cations but Ca^2+can accelerate the hydration of *** final crystal size is not largely influenced by different salts,except for Na^+,where the giant crystal with length of>130μm is *** study clarifies the influence of different ions on the hydration of bassanite,which could provide sufficient guide for the pre-treatment of original flue gas desulphurization gypsum before actual application.

关键词： Bassanite Flue gas desulphurization Hydration Soluble ions

Multifactor roadmap for designing low-power-consumed micro thermoelectric thermostats in a closed-loop integrated 5G optical module

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Interdisciplinary Materials 2024年第2期3卷 326-337页

作者： Dongwang yang Yubing xing Jiang Wang Kai Hu yani Xiao Kechen Tang Jianan Lyu Junhao Li Yutian Liu Peng Zhou Yuan Yu Yonggao yan Xinfeng Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina Nanostructure Research Center Wuhan University of TechnologyWuhanChina Research Center for Materials Genome Engineering Wuhan University of TechnologyWuhanChina Institute of Physics(IA) RWTH Aachen UniversityAachenGermany

As the core components of fifth-generation(5G)communication technology,optical modules should be consistently miniaturized in size while improving their level of *** inevitably leads to a dramatic spike in power consumption and a consequent increase in heat flow density when operating in a confined *** ensure a successful start-up and operation of 5G optical modules,active cooling and precise temperature control via the Peltier effect in confined space is essential yet *** this work,p-type Bi_(0.5)Sb_(1.5)Te_(3)and n-type Bi_(2)Te_(2.7)Se_(0.3)bulk thermoelectric(TE)materials are used,and a micro thermoelectric thermostat(micro-TET)(device size,2×9.3×1.1mm^(3);leg size,0.4×0.4×0.5mm^(3);number of legs,44)is successfully integrated into a 5G optical module with Quad Small Form Pluggable 28 *** a result,the internal temperature of this kind of optical module is always maintained at 45.7℃ and the optical power is up to 7.4 ***,a multifactor design roadmap is created based on a 3D numerical model using the ANSYS finite element method,taking into account the number of legs(N),leg width(W),leg length(L),filling atmosphere,electric contact resistance(Rec),thermal contact resistance(Rtc),ambient temperature(Ta),and the heat generated by the laser source(QL).It facilitates the integrated fabrication of micro-TET,and shows the way to enhance packaging and performance under different operating *** to the roadmap,the micro-TET(2×9.3×1mm^(3),W=0.3 mm,L=0.4 mm,N=68 legs)is fabricated and consumes only 0.89W in cooling mode(Q_(L)=0.7W,T_(a)=80℃)and 0.36Win heating mode(T_(a)=0℃)to maintain the laser temperature of 50℃.This research will hopefully be applied to other microprocessors for precise temperature control and integrated manufacturing.

关键词： 5G optical module finite element simulation micro thermoelectric thermostat Peltier effect

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嫁接对瓠瓜抗病抗逆性及果实品质的影响

核农学报 2025年第1期39卷 191-200页

作者：王海燕汪颖王尖邢乃林李国景徐沛吴晓花中国计量大学生命科学学院浙江杭州310018 浙江省农业科学院蔬菜研究所浙江杭州310021 宁波市特色园艺作物品质调控和抗性育种重点实验室浙江宁波315040

为探究嫁接对瓠瓜抗病抗逆性和果实品质的影响,以瓠瓜自根苗为对照,比较4种南瓜型砧木(全能铁甲、思壮12、砧西316、黑武士)嫁接浙蒲9号瓠瓜的成活率、枯萎病抗性、低温弱光性及耐盐性、果实品质等差异,并通过主成分分析及隶属函数法对... 详细信息

为探究嫁接对瓠瓜抗病抗逆性和果实品质的影响,以瓠瓜自根苗为对照,比较4种南瓜型砧木(全能铁甲、思壮12、砧西316、黑武士)嫁接浙蒲9号瓠瓜的成活率、枯萎病抗性、低温弱光性及耐盐性、果实品质等差异,并通过主成分分析及隶属函数法对不同嫁接组合进行综合评价。结果表明,浙蒲9号/思壮12嫁接组合的成活率最高(94.87%),不同砧穗组合枯萎病抗性均较对照增强。浙蒲9号/思壮12在低温弱光下的最大光化学效率(Fv/Fm)最高,在200 mmol·L^(-1)NaCl胁迫下生长较好。与自根苗相比,嫁接植株长势均变旺,果实的维生素C含量降低,其他指标均有不同程度的提升。浙蒲9号/全能铁甲的果实可溶性固形物含量最高,浙蒲9号/砧西316的果实钙含量最高,浙蒲9号/黑武士的果实蛋白质和镁含量最高。浙蒲9号/思壮12的产量、果实游离谷氨酸和钾含量最高,硬度和可滴定酸含量最小,瓠瓜品质有所提升。同时,主成分分析和隶属函数值综合评价结果表明,浙蒲9号/思壮12的D值为0.914,排名第一。综上,嫁接可以增强瓠瓜枯萎病抗性,不同程度提高瓠瓜的低温、盐胁迫耐受性,合理选择砧木可提高瓠瓜果实品质,以思壮12为砧木嫁接浙蒲9号瓠瓜综合表现最佳。本研究结果为适宜瓠瓜嫁接砧木的选择提供了技术支持。

关键词：瓠瓜嫁接抗病抗逆性果实品质综合评价

Neonatal methicillin-resistant Staphylococcus aureus pneumonia-related recurrent fatal pyopneumothorax: A case report and review of literature

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World Journal of Clinical Cases 2023年第30期11卷 7475-7484页

作者： xing-Chao Li Li Sun Tao Li Department of Pediatrics Taihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina Institute of Pediatric Research Hubei University of MedicineShiyan 442000Hubei ProvinceChina Institute of Pediatric Research Taihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina

BACKGROUND Although neonatal Staphylococcus aureus pneumonia is common and usually curable,it can also be refractory and ***,we report a case of severe neonatal community-acquired methicillin-resistant Staphylococcus aureus(CA-MRSA)necrotizing pneumonia with bilateral recurrent pyopneumothorax,respiratory failure,heart failure,and cardiac *** hope our report will add to the understanding of this *** SUMMARY An 18-d-old boy presented with cough for five days,fever for three days,and dyspnea for two *** chest radiograph revealed high-density shadows in both *** admission,his oxygen saturation fluctuated around 90%under synchronized intermittent mandatory *** was unconscious,with dyspnea,weak heart sounds and *** crackles were present throughout his left lung,while the breath sounds in the right lung were *** high-frequency oscillatory ventilation,empiric antimicrobials(meropenem and vancomycin),improved circulation,and right pleural cavity drainage for right pneumothorax(approximately 90%compression),his oxygen saturation level stayed above 95%,and recruitment of the right lung was *** condition did not deteriorate until the 5th day of hospitalization(DOH 5).On the morning of DOH 5,his oxygen saturation *** chest radiograph showed bilateral pneumothorax with nearly 100%compression of the left *** was not relieved after urgent left pleural cavity drainage,and cardiac arrest occurred soon *** his spontaneous heartbeat returned through emergency resuscitation and salvage antibacterial therapy(linezolid and levofloxacin)was administered given the detection and antimicrobial susceptibility of MRSA,he showed no improvement,with recurrent pyopneumothorax and continued drainage of purulent fluid and necrotic lung tissue fragments from the pleural ***,his parents refused extracorporeal membrane oxygenation(ECMO)and ga

关键词： Newborn Methicillin-resistant Staphylococcus aureus Pyopneumothorax Linezolid Extracorporeal membrane oxygenation Case report

Recognition of Early Paleozoic Magmatisms in the Supposed Proterozoic Basements of Zhalantun, Great xing’an Range, NE China

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Acta Geologica Sinica(English Edition) 2019年第5期93卷 1434-1455页

作者： QIN Tao GUO Rongrong ZANG yanqing QIAN Cheng WANG yan SI Qiuliang SUN Wei MA Yongfei College of Earth Sciences Jilin UniversityChangchun 130061China Shenyang Institute of Geology and Mineral Resources Shenyang 110034LiaoningChina Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines Department of GeologyNortheastern UniversityShenyang 110819China

The Zhalantun terrane from the xing’an massif, northeast China, was used to be considered as Proterozoic basements. However, amounts of detrital zircon ages from the meta-sedimentary rocks deny the existence of Precambrian basements recently. Notably, magmatic rocks were barely reported to limit the exact ages of the Zhalantun basements. In this study, we collected rhyolite, gabbro and quartz diorite for zircon in-situ U-Pb isotopic dating, which yield crystallization ages of ~505 Ma, ~447 Ma and ~125 Ma, respectively. Muscovite schist and siltstone define maximum depositional ages of ~499 Ma and ~489 Ma, respectively. Additionally, these dated supracrustal rocks and plutons also yield ancient detrital/xenocryst zircon ages of ~600-1000 Ma, ~1600-2220 Ma, ~2400 Ma, ~2600-2860 Ma. Based on the whole-rock major and trace element compositions, the ~505 Ma rhyolites display high SiO2 and alkaline contents, low Fe2O3T, TiO2 and Al2O3, and relatively high Mg O and Mg#, which exhibit calc-alkaline characteristics. These rhyolites yield fractionated REE patterns and negative Nb, Ta, Ti, Sr, P and Eu anomalies and positive Zr anomalies. The geochemistry, petrology and Lu-Hf isotopes imply that rhyolites were derived from the partial melting of continental basalt induced by upwelling of sub-arc mantle magmas, and then experienced fractional crystallization of plagioclase, which points to a continental arc regime. The ~447 Ma gabbros exhibit low Si O2 and alkaline contents, high Fe2 O3 T, Ti O2, Mg O and Mg#. They show minor depletions of La and Ce, flat MREE and HREE patterns, and negative Nb, Ta, Zr and Hf anomalies. Both sub-arc mantle and N-MORB-like mantle were involved in the formation of the gabbros, indicative of a probable back-arc basin tectonic setting. Given that, the previously believed Proterozoic supracrustal rocks and several plutons from the Zhalantun Precambrian basements were proved to be Paleozoic to Mesozoic rocks, among which these Paleozoic magmatic rock

关键词： early Paleozoic magmatism xinghuadukou Group Jiageda Formation Zhalantun terrane Great xing’an Range Central Asian Orogenic Belt

Correlation between pre-treatment serum total blood bilirubin andunconjugated bilirubin and prognosis in patients with colorectalcancer

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World Journal of Gastrointestinal Surgery 2023年第11期15卷 2456-2462页

作者： Hui Tong Peng xing Zhao-Ning Ji Department of Medicine Oncology Anhui Jingxian HospitalXuancheng 242500Anhui ProvinceChina Department of Medicine Oncology The First Affiliated Hospital of Wannan Medical College-Yijishan HospitalWuhu 241000Anhui ProvinceChina

BACKGROUND Epidemiological studies have found that unconjugated bilirubin(UCB)levels are positively correlated with the incidence of colorectal cancer(CRC).Therefore,bilirubin may also play an important role in the prognosis of *** To investigate the predictive value of total bilirubin(TBIL)and UCB in the prognosis of patients with *** A total of 142 CRC patients were selected as the research subjects in Jingxian Hospital,from October 2014 to May *** and tumour-related clinical data at admission and the overall survival at 3 years after surgery were *** optimal cut-off values of TBIL and UCB were determined by receiver operating characteristic curve *** and multivariate Cox regression were used to analyse the effect of bilirubin level on the survival of CRC *** Kaplan–Meier method was used to assess the survival *** The 3-year overall survival rate of CRC patients was significantly higher in the high TBIL(>13.45μmol/L)group than in the low TBIL(≤13.45μmol/L)group(76.4%vs 37.1%;P10.75μmol/L)group was significantly higher than that in the low UCB(≤10.75μmol/L)group(83.3%vs 34.2%;P<0.05).Multivariate Cox regression analysis showed that higher TBIL levels were an independent predictor of better prognosis in CRC patients(hazard ratio=0.360,95%confidence interval:0.159-0.812,P=0.014).CONCLUSION TBIL levels can be used as a prognostic indicator for CRC patients.

关键词： Bilirubin Colorectal neoplasms Prognosis