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1GS6, A Member of the GRAS Gene Family,Negatively Regulates Grain Size in Rice显示文摘Grain size is an important yield related trait in rice.Intensive arti cial selection for grain size during domestication is evidenced by the larger grains of most of today’s cultivars compared with their wild relatives.However,the molecular genetic control of rice grain size is still not well characterized.Here,we report the identi cation and cloning of Grain Size 6(GS6),which plays an important role in reducing grain size in rice.A premature stop at the t348 position in the coding sequence(CDS)of GS6 increased grain width and weight signi cantly.Alignment of the CDS regions of GS6 in 90 rice materials revealed three GS6alleles.Most japonica varieties(95%)harbor the Type I haplotype,and 62.9%of indica varieties harbor the Type II haplotype.Association analysis revealed that the Type I haplotype tends to increase the width and weight of grains more than either of the Type II or Type III haplotypes.Further investigation of genetic diversity and the evolutionary mechanisms of GS6showed that the GS6gene was strongly selected in japonica cultivars.In addition,a'ggc'repeat region identi ed in the region that encodes the GRAS domain of GS6 played an important historic role in the domestication of grain size in rice.Knowledge of the function of GS6might aid efforts to elucidate the molecular mechanisms that control grain development and evolution in rice plants,and could facilitate the genetic improvement of rice yield.Lianjun Sun Xiaojiao Li Yongcai Fu Zuofeng Zhu Lubin Tan Fengxia Liu Xianyou Sun Xuewen Sun Chuanqing Sun 2013Journal of Integrative Plant Biology2013,55,10:44
2Coking wastewater treatment for industrial reuse purpose: Combining biological processes with ultrafiltration, nanofiltration and reverse osmosis显示文摘A full-scale plant using anaerobic, anoxic and oxic processes (A1/A2/O), along with a pilot-scale membrane bioreactor (MBR), nanofiltration (NF) and reverse osmosis (RO) integrated system developed by Shanghai Baosteel Chemical Co. Ltd., was investigated to treat coking wastewater for industrial reuse over a period of one year. The removals reached 82.5% (COD), 89.6% (BOD), 99.8% (ammonium nitrogen), 99.9% (phenol), 44.6% (total cyanide (T-CN)), 99.7% (thiocyanide (SCN-)) and 8.9% (fluoride), during the A1/A2/O biological treatment stage, and all parameters were further reduced by over 96.0%, except for fluoride (86.4%), in the final discharge effluent from the currently operating plant. The pilot-scale MBR process reduced the turbidity to less than 0.65 NTU, and most of the toxic organic compounds were degraded or intercepted by the A1/A2/O followed MBR processes. In addition, parameters including COD, T-CN, total nitrogen, fluoride, chloride ion, hardness and conductivity were significantly reduced by the NF-RO system to a level suitable for industrial reuse, with a total water production ratio of 70.7%. However, the concentrates from the NF and RO units were highly polluted and should be disposed of properly or further treated before being discharged.Xuewen Jin Enchao Li Shuguang Lu Zhaofu Qiu Qian Sui 2013Journal of Environmental Sciences2013,25,8:38
3Leaching of vanadium from stone coal with sulfuric acid显示文摘The effects of roasting, mass ratio of H2SO4 to stone coal, leaching temperature, liquid-to-solid ratio, grinding fineness of stone coal, and two-stage counter-current leaching on the vanadium leaching ratio were studied. The results show that the vanadium leaching ratio of roasted stone coal through two-stage counter-current leaching can reach 65.1% at the mass ratio of H2SO4 to stone coal of 20%, leaching temperature of 95°C, leaching time of 30 h, liquid-to-solid ratio of 1.1 mL-g-1, and grinding fineness of 0.1 mm, which can serve as an experimental basis for the production of vanadium from stone coal.WANG Mingyu XIAO Liansheng LI Qinggang WANG Xuewen XIANG Xiaoyan 2009Rare Metals2009,28,1:26
4用近红外光谱预测土壤碳含量的研究显示文摘以田间行走式设备获取的近红外光谱数据为基础,利用最小二乘回归法(PLSR)建立了应用近红外光谱数据预测土壤碳含量的校正模型,与利用原始光谱数据建立的模型相比,应用经比值或归一化差值处理的光谱数据建立的校正模型可以提高预测精度.精度提高的原因可能是光谱数据经过波段算术组合处理后,能降低模型建立过程中产生过配的风险,使模型能包括更多的成分和信息.研究结果表明,利用偏最小二乘回归法,可以有效地建立田间近红外光谱与土壤碳含量之间的校正模型;同时,应用比值或归一化差值这些波段算术组合方法来处理近红外光谱数据,可以进一步提高模型的预测精度.因此,应用行走式设备获取的近红外光谱数据来快速测定田间土壤中碳的含量是可行的.沈掌泉 王珂 Xuewen Huang 2010红外与毫米波学报2010,29,1:24
5The Hardy Rubber Tree Genome Provides Insights into the Evolution of Polyisoprene Biosynthesis显示文摘Eucommia ulmoides,也叫的强壮的橡胶树,是一棵经济地重要的树;然而,它的染色体顺序的缺乏 ?限制基本生物研究和这植物种的应用研究。这里,我们在场它的 1.2-Gb 染色体的一个高质量的集会(支架 N50 ?=? 1.88 Mb ) 与至少 26 ? 为 E 的 723 预言的基因。ulmoides,顺序 Garryales 的首先定序的染色体,它用联合定序的 Illumina 的综合策略被获得,定序的 PacBio,和印射的 BioNano。作为到 lamiids 和 campanulids 的姐妹 taxon, E。ulmoides 经历了三倍由核心 eudicots 而是没有进一步整个染色体的复制分享了的一个古老的染色体 ? 在最后 1.25 亿年里。E。ulmoides 为涉及压力回答和第二等的代谢物的生合成的多重基因展出高表达式层次或基因数字扩大,它可以说明它的可观的环境适应性。与橡胶树(Hevea brasiliensis ) 相对照,它生产 cis 聚异式戊二我烯, E。ulmoides 演变综合经由 farnesyl diphosphate synthases (FPS ) 的长链的 trans 聚异式戊二我烯。而且, FPS 和橡胶延伸 factor/small 橡胶粒子蛋白质基因家庭从 H 独立地被扩展。brasiliensis 系。这些结果提供新卓见进 E. 的生物学 ? ulmoides 和聚异式戊二我烯生合成的起源。Ta-na Wuyun Lin Wang Huimin Liu Xuewen Wang Liangsheng Zhang Jeffrey L. Bennetzen Tiezhu Li Lirong Yang Panfeng Liu Lanying Du Lu Wang Mengzhen Huang Jun Qing Iili Zhu Wenquan Bao Hongguo Li Qingxin Du Jingle Zhu Hong Yang Shuguang Yang Hui Liu Hui Yue Jiang Hu Suoliang Yu Yu Tian Fan Liang Jingjing Hu Depeng Wang Ruiwen Gao Dejun Li Hongyan Du 2018Molecular Plant2018,11,3:24
6LHD1,an Allele of DTH8/Ghd8,Controls Late Heading Date in Common Wild Rice (Oryza rufipogon)显示文摘Flowering at suitable time is very important for plants to adapt to complicated environments and produce their seeds successfully for reproduction.In rice (Oryza rufipogon Griff.) photoperiod regulation is one of the important factors for controlling heading date.Common wild rice,the ancestor of cultivated rice,exhibits a late heading date and a more sensitive photoperiodic response than cultivated rice.Here,through map-based cloning,we identified a major quantitative trait loci (QTL) LHD1 (Late Heading Date 1),an allele of DTH8/Ghd8,which controls the late heading date of wild rice and encodes a putative HAP3/NF-YB/CBF-A subunit of the CCAAT-box-binding transcription factor.Sequence analysis revealed that several variants in the coding region of LHD1 were correlated with a late heading date,and a further complementary study successfully rescued the phenotype.These results suggest that a functional site for LHD1 could be among those variants present in the coding region.We also found that LHD1 could down-regulate the expression of several floral transition activators such as Ehd1,Hd3a and RFT1 under long-day conditions,but not under short-day conditions.This indicates that LHD1 may delay flowering by repressing the expression of Ehd1,Hd3a and RFT1 under long-day conditions.Xiaodong Dai Younian Ding Lubin Tan Yongcai Fu Fengxia Liu Zuofeng Zhu Xianyou Sun Xuewen Sun Ping Gu Hongwei Cai Chuanqing Sun 2012Journal of Integrative Plant Biology2012,54,10:23
7Stage-progressive distribution pattern of the Lungmachi black graptolitic shales from Guizhou to Chongqing, Central China显示文摘The Lungmachi Formation is widely distributed in Guizhou, Chongqing and the adjacent area. It is important for the study of Silurian biostratigraphy and shale-gas investigation. Based on those biostratigraphically well-studied sections from Guiyang to Huayingshan, we reveal the stage-progressive distribution pattern of the Lungmachi black shales. The distribution of the Lungmachi black shales in the studying area can be subdivided into four geographic belts from the south to the north,reflecting the joint effect of regional and global environmental changes. The graptolite depth zonation model was adopted herein to infer the water depth of major graptolite assemblages from the black shales. The changes in the water depth indicate two major stages. The first stage is named the transgressive distribution stage which ranged from the Persculptograptus persculptus Biozone(LM1, upper Hirnantian) to the Coronograptus cyphus Biozone(LM5, upper Rhuddanian), an interval mostly controlled by global sea-level rise. The second stage, ranging from the Demirastrites triangulatus Biozone(LM6, lower Aeronian) to the Spirograptus guerichi Biozone(LM9, lower Telychian), is named the regressive shrinking stage, during which the black shales were gradually replaced by mixed-facies or carbonate sediments from the south to the north, representing the effects of the persistent uplifting of the Central Guizhou Oldland.CHEN Xu FAN JunXuan WANG WenHui WANG HongYan NIE HaiKuan SHI XueWen WEN ZhiDong CHEN DongYang LI WenJie 2017Science China Earth Sciences2017,60,6:23
8Survival of transplanted neurotrophin-3 expressing human neural stem cells and motor function in a rat model of spinal cord injury显示文摘<正>BACKGROUND:Many methods have been attempted to repair nerves following spinal cord injury, including peripheral nerve transplantation,Schwann cell transplantation,olfactory ensheathing cell transplantation,and embryonic neural tissue transplantation.However,there is a need for improved outcomes. OBJECTIVE:To investigate the repair feasibility for rat spinal cord injury using human neural stem cells(hNSCs) genetically modified by lentivirus to express neurotrophin-3. DESIGN,TIME AND SETTING:In vitro cell biological experiment and in vivo randomized,controlled, genetic engineering experiment were performed at the Third Military Medical University of Chinese PLA and First People's Hospital of Yibin,China from March 2006 to December 2007. MATERIALS:A total of 64 adult,female,Wistar rats were used for the in vivo study.Of them,48 rats were used to establish models of spinal cord hemisection,and were subsequently equally and randomly assigned to model,genetically modified hNSC,and normal hNSC groups.The remaining 16 rats served as normal controls. METHODS:hNSCs were in vitro genetically modified by lentivirus to secrete both green fluorescence protein and neurotrophin-3.Neurotrophin-3 expression was measured by Western blot. Genetically modified hNSC or normal hNSC suspension(5×10~5) was injected into the rat spinal cord following T_(10) spinal cord hemisection.A total of 5μL Dulbecco's-modified Eagle's medium was infused into the rat spinal cord in the model group.Transgene expression and survival of transplanted hNSCs were determined by immunohistochemistry.Motor function was evaluated using the Basso,Beattie,and Bresnahan(BBB) scale. MAIN OUTCOME MEASURES:The following parameters were measured:expression of neurotrophin-3 produced by genetically modified hNSCs,transgene expression and survival of hNSCs in rats,motor function in rats. RESULTS:hNSCs were successfully genetically modified by lentivirus to stably express neurotrophin-3.The transplanted hNSCs primarily gathered at,or around,the injection site two weeks following transplantation,and gradually migrated towards the surrounding tissue. Transplanted hNSCs were observed 7.0-8.0 mm away from the injection site.In addition,hNSCs were observed 10 weeks after transplantation.At week 4,BBB locomotor scores were significantly greater in the genetically modified hNSC and normal hNSC groups,compared with the model group (P<0.05),and scores were significantly greater in the genetically modified hNSC group compared with the normal hNSC group(P<0.05). CONCLUSION:hNSCs were genetically modified with lentivirus to stably secrete neurotrophin-3. hNSCs improved motor function recovery in rats following spinal cord injury.Peiqiang Cai Guangyun Sun Peishu Cai Martin Oudega Rui Xiao Xuewen Wang Wei Li Yunbing Shu Cheng Cai Haihao Yang Xuebing Shan Wuhua Luo 2009Neural Regeneration Research2009,4,7:18
9Plasmonic nano-printing: large-area nanoscale energy deposition for efficient surface texturing显示文摘The lossy nature of plasmonic wave due to absorption is shown to become an advantage for scaling-up a large area surface nanotexturing of transparent dielectrics and semiconductors by a self-organized sub-wavelength energy deposition leading to an ablation pattern—ripples—using this plasmonic nano-printing.Irreversible nanoscale modifications are delivered by surface plasmon polariton(SPP)using:(i)fast scan and(ii)cylindrical focusing of femtosecond laser pulses for a high patterning throughput.The mechanism of ripple formation on ZnS dielectric is experimentally proven to occur via surface wave at the substrate–plasma interface.The line focusing increase the ordering quality of ripples and facilitates fabrication over wafer-sized areas within a practical time span.Nanoprinting using SPP is expected to open new applications in photo-catalysis,tribology,and solar light harvesting via localized energy deposition rather scattering used in photonic and sensing applications based on re-scattering of SPP modes into far-field modes.Lei Wang Qi-Dai Chen Xiao-Wen Cao Ričardas Buividas Xuewen Wang Saulius Juodkazis Hong-Bo Sun 2017Light(Science & Applications)2017,6,1:15
10Mega-shoaling in carbonate platform of the Middle Triassic Leikoupo Formation,Sichuan Basin, Southwest China显示文摘Shoaling is a common type of sedimentation in the evolution of carbonate platform,and commonly has poor continuity.This paper presents a newly discovered and rare type of shoaling,i.e.,mega-shoaling in nearly basin scale,which is developed in the Middle Triassic Leikoupo Formation of the Sichuan Basin,southwest China.During the Leikoupo time,the studied Sichuan Basin experienced hot and dry climate conditions and developed a carbonate platform within a restricted epicontinental sea.In B sub-layer of the Lei-1-1 sub-member of the Leikoupo Formation a series of grainstones of shoal facies accumulated throughout almost the entire basin,thereby generating features associated with basin-scale mega-shoaling.By detailed core examination and microscopic observation of thin sections,it is shown that the lithology of this set of grainstones is dominated by doloarenite(calcarenite)followed by oolitic dolomite(limestone).In addition,it contains three types of sedimentary sequences characterized by upward-coarsening and upward-shallowing as the followings:restricted lagoon to platform interior beach;restricted lagoon to platform interior beach and to platform flat;and tidal flat to peritidal beach.Subsequently,a multicyclic stratigraphic division and correlation revealed that this set of grainstones can be well traced and compared horizontally,and is generally isochronous.In addition,a template for logging facies,established based on core calibrations and logging data,was employed to analyze the 235 wells in the basin.The results demonstrate the shoal grainstones to be 10–40 m thick with a15×104km2continuous distribution area.These findings indicate that the carbonate platform developed mega-shoals within a short period of time.The genesis of such a mega-shoaling was investigated by focusing on various shoaling conditions,such as paleo-tectonics,paleo-geomorphology,paleo-climate,sea-level changes,and palaeo-hydrodynamics.A specific combination of independent geological factors creates beneficial geomorphologic conditions for the mega-shoaling including a quiescent paleo-tectonic environment,relatively flat paleo-geomorphology and evaporites filling up and leveling off.In addition,a stably settling carbonate platform underwent sea-level fluctuations through swift transgressions and protracted regressions,which is not only conducive to continuous,multicyclic and superimposed vertical development of grain beaches but also beneficial for the horizontal migration,coalescence and superimposition of individual grain beaches.As a consequence,large-scale and continuously-distributed grain beach sedimentation emerges and mega-shoals develop.TAN XiuCheng LI Ling LIU Hong CAO Jian WU XiaoQing ZHOU SuYan SHI XueWen 2014Science China Earth Sciences2014,57,3:12
11A proposed surface resistance model for the Penman-Monteith formula to estimate evapotranspiration in a solar greenhouse显示文摘Greenhousing is a technique to bridge season gap in vegetable production and has been widely used worldwide. Calculation of water requirement of crops grown in greenhouse and determination of their irrigation schedules in arid and semi-arid regions are essential for greenhouse maintenance and have thus attracted increased attention over the past decades. The most common method used in the literature to estimate crop evapotranspiration(ET) is the Penman-Monteith(PM) formula. When applied to greenhouse, however, it often uses canopy resistance instead of surface resistance. It is understood that the surface resistance in greenhouse is the result of a combined effect of canopy restriction and soil-surface restriction to water vapor flow, and the relative dominance of one restriction over another depends on crop canopy. In this paper, we developed a surface resistance model in a way similar to two parallel resistances in an electrical circuit to account for both restrictions. Also, considering that wind speed in greenhouse is normally rather small, we compared three methods available in the literature to calculate the aerodynamic resistance, which are the r_a^1 method proposed by Perrier(1975a, b), the r_a^2 method proposed by Thom and Oliver(1977), and the r_a^3 method proposed by Zhang and Lemeu(1992). We validated the model against ET of tomatoes in a greenhouse measured from sap flow system combined with micro-lysimeter in 2015 and with weighing lysimeter in 2016. The results showed that the proposed surface resistance model improved the accuracy of the PM model, especially when the leaf area index was low and the greenhouse was being irrigated. We also found that the aerodynamic resistance calculated from the r_a^1 and r_a^3 methods is applicable to the greenhouse although the latter is slightly more accurate than the former. The proposed surface resistance model, together with the r_a^3 method for aerodynamic resistance, offers an improved approach to estimate ET in greenhouse using the PM formula.GONG Xuewen LIU Hao SUN Jingsheng GAO Yang ZHANG Xiaoxian Shiva K JHA ZHANG Hao MA Xiaojian WANG Wanning 2017Journal of Arid Land2017,9,4:12
12田间行走式测定的红外光谱数据与土壤质地之间的相关性研究显示文摘近红外光谱是利用漫反射来分析物质的某些化学性质,已在农业及其他许多领域得到广泛应用。尽管在实验室条件下,研究证明可以应用近红外光谱分析技术来快速、方便地测定土壤参数,但在田间大范围内应用红外光谱快速测定来分析土壤性质,仍然缺乏研究;该研究以田间行走式设备获取的红外光谱数据为基础,分析和比较了不同数据处理技术下红外光谱信息与土壤质地之间的相关性,发现应用基于算术运算的波段组合技术可以明显地提高红外光谱信息与土壤质地之间的相关性,为田间光谱数据的分析处理与应用提供了依据。沈掌泉 Oi Jiaguo Huang Xuewen 单英杰 王珂 2009光谱学与光谱分析2009,29,6:11
13Dynamic characteristics of an intestine capsule robot with variable diameter显示文摘This paper proposes an intestine capsule robot with variable diameter. It is driven by external rotating magnetic field and has the function of automatic radial clearance compensation. An external magnetic field generating device and a capsule robot with variable diameter are developed. Radial dynamic balance equation and kinematics equation of the capsule robot traveling inside flexible elasto-wall environment are established, and dynamic characteristics of the capsule robot inside flexible elasto-wall pipe and rigid wall pipe environments are analyzed and compared. Simulations and experiment results show that its dynamic characteristics in both pipes are almost the same. Under the action of radial clearance compensation, fluid dynamic pressure around outer surface of the capsule robot and its propulsion, as well as its adaptability to diameter change range, are significantly improved. Its propulsion and moving speed are controlled by adjusting rotating angular speed of the rotating magnetic field. This innovative capsule robot with radial clearance compensation has a promising prospect for inside intricate gastrointestinal (GI) tract in non-invasive therapy applications.ZHANG YongShun JIANG ShengYuan ZHANG XueWen YU HongHai WANG DianLong GUO DongMing 2010Chinese Science Bulletin2010,55,17:11
14Solvent extraction of vanadium from sulfuric acid solution显示文摘The behaviour of vanadium(V) extracted from sulfuric acid solution was investigated using Cyanex 923 as an extractant. The effects of the concentration of Cyanex 923 and the pH of the solution were studied. The extraction of vanadium(V) increases with the increase of Cyanex 923 concentration and shaking time. Cyanex 923 can extract vanadium(V) from sulfuric acid solution at low pH conditions, and the best pH conditions for extraction of vanadium(V) are at pH 1.0-2.0. The species extracted into the organic phase is VO2HSO4 with one molecule of Cyanex 923. Equilibrium studies were used to assess the extraction efficiency of vanadium(V) recovery from the sulfuric acid solution.WANG Mingyu ZHANG Guiqing WANG Xuewen ZHANG Jialiang 2009Rare Metals2009,28,3:11
15Two-dimensional materials:From mechanical properties to flexible mechanical sensors显示文摘Two-dimensional(2D)materials have great potential in the fields of flexible electronics and photoelectronic devices due to their unique properties derived by special structures.The study of the mechanical properties of 2D materials plays an important role in next-generation flexible mechanical electronic device applications.Unfortunately,traditional experiment models and measurement methods are not suitable for 2D materials due to their atomically ultrathin thickness,which limits both the theoretical research and practical value of the 2D materials.In this review,we briefly summarize the characterization of mechanical properties of 2D materials by in situ probe nanoindentation experiments,and discuss the effect of thickness,grain boundary,and interlayer interactions.We introduce the strain-induced effect on electrical properties and optical properties of 2D materials.Then,we generalize the mechanical sensors based on various 2D materials and their future potential applications in flexible and wearable electronic devices.Finally,we discuss the state of the art for the mechanical properties of 2D materials and their opportunities and challenges in both basic research and practical applications.Hanjun Jiang Lu Zheng Zheng Liu Xuewen Wang 2020InfoMat2020,2,6:10
16Supersonic swirling characteristics of natural gas in convergent-divergent nozzles显示文摘超声的嘴是能被用来压缩并且把水和重烃与天然气分开的一台新仪器。在会聚分叉的嘴的天然气的打漩的分离数字地基于合并中央身体的一个新图案被模仿。煤气的流动的主要参数的轴的分发被调查,当煤气的流动的基本参数在嘴出口作为半径的函数被获得时。打漩的分离上的嘴几何学的效果被分析。数字结果证明水和重烃能被压缩并且在低温度的联合效果下面与天然气分开了(80 愠汬? 祥獥吗?Wen Chuang Cao Xuewen Yang Yan Zhang Jing 2011Petroleum Science2011,8,1:8
17Expression of neurocan mRNA and ultrastructure of brain tissue after cerebral ischemia and reperfusion in stroke-prone renovascular hypertensive rats treated by electroacupuncture显示文摘We established a stroke-prone renovascular hypertensive rat model by bilateral constriction of the renal artery with sliver loop clips. After ten weeks, middle cerebral artery occlusion was induced for 2 hours. The rats then received electro-acupuncture at Baihui (DU 20) and Dazhui (DU 14) after onset of ischemia for 30 days. In situ hybridization study showed that electroacupuncture significantly reduced the number of neurocan mRNA-positive cells in the ischemic penumbra and hippocampal tissues of rats. Electron microscopy results demonstrated that the structure of neurons and blood vessels in the ischemic tissues were restored with electroacupuncture. Overall, these data suggest that electroacupuncture may protect neurons against ischemic reperfusion injury in stroke-prone renovascular hypertensive rats, which may be regulated by downregulation of expression of nerve inhibitory factor neurocan mRNA.Feng Tan Saiying Wan Haike Wu Qiwen HUO Jinliang Wang Wenlin Chen Meifeng Fang Xiaolin Liu Xuewen Wang Jingbo Sun 2011Neural Regeneration Research2011,6,36:8
18Aging characteristic of Cu-0.6Cr-0.15Zr-0.05Mg-0.02Si alloy containing trace rare earth yttrium显示文摘The aging characteristic of Cu-0.6Cr-0.15Zr-0.05Mg-0.02Si alloy containing trace rare earth yttrium was investigated. The results showed that Cu-0.6Cr-0.15Zr-0.05Mg-0.02Si alloy obtained good comprehensive performance after 80% rolling and then aging at 480℃ for 1 h; the hardness and electrical conductivity reached HV 150 and 85.5% IACS, respectively. Increasing aging temperature accelerated aging precipitation. The time for attaining peak hardness was postponed, the precipitates were finer (2-4 nm), and the interparticle spacing was shorter due to yttrium addition. The hardness and electrical conductivity of the Y-containing alloy after 80% deformation and then aging at 480℃ for 45 min reached HV 174 and 82.1% IACS, respectively.YU Fangxin CHENG Jianyi AO Xuewen 2011Rare Metals2011,30,5:8
19Review of micromachined optical accelerometers:from mg to sub-μg显示文摘Micro-Opto-Electro-Mechanical Systems(MOEMS)accelerometer is a new type of accelerometer which combines the merits of optical measurement and Micro-Electro-Mechanical Systems(MEMS)to enable high precision,small volume and anti-electromagnetic disturbance measurement of acceleration.In recent years,with the in-depth research and development of MOEMS accelerometers,the community is flourishing with the possible applications in seismic monitoring,inertial navigation,aerospace and other industrial and military fields.There have been a variety of schemes of MOEMS accelerometers,whereas the performances differ greatly due to different measurement principles and corresponding application requirements.This paper aims to address the pressing issue of the current lack of systematic review of MOEMS accelerometers.According to the optical measurement principle,we divide the MOEMS accelerometers into three categories:the geometric optics based,the wave optics based,and the new optomechanical accelerometers.Regarding the most widely studied category,the wave optics based accelerometers are further divided into four sub-categories,which is based on grating interferometric cavity,Fiber Bragg Grating(FBG),Fabry-Perot cavity,and photonic crystal,respectively.Following a brief introduction to the measurement principles,the typical performances,advantages and disadvantages as well as the potential application scenarios of all kinds of MOEMS accelerometers are discussed on the basis of typical demonstrations.This paper also presents the status and development tendency of MOEMS accelerometers to meet the ever-increasing demand for high-precision acceleration measurement.Qianbo Lu Yinan Wang Xiaoxu Wang Yuan Yao Xuewen Wang Wei Huang 2021Opto-Electronic Advances2021,4,3:8
20Research on Pressure Tactile Sensing Technology Based on Fiber Bragg Grating Array显示文摘一个压力触觉的传感器基于纤维布拉格栅栏(FBG ) ,数组在这篇论文,和它的有弹性的身体的数字模拟被介绍被有限元素软件(ANSYS ) 实现。根据模拟,纤维布拉格栅栏绳在灵活硅酮被植入认识到传感器制造过程,并且一个严峻的系统被造。一系列刻度测试经由高精确被做通用出版社机器。触觉的传感器数组察觉了外部压力,它被纤维栅栏解调仪器使解调,并且三尺寸的图画被规划视觉上显示位置和尺寸。同时,传感器的一个动态接触实验为模仿在未知环境遇到另外的目标的机器人被进行。试验性的结果证明传感器有好线性,重覆性,并且有动态反应的好效果,并且它的压力敏感是 0.03 nm/N。另外,传感器也有反电磁的干扰的优点,好灵活性,简单结构,低等等花费,它被期望以后在便携人工的皮肤被过去常。Jinxue SONG Qi JIANG Yuanyang HUANG Yibin LI Yuxi JIA Xuewen RONG Rui SONG Hongbin LIU 2015Photonic Sensors2015,5,3:8
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