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| 1 | Principles and construction of MSD adder in ternary optical computer显示文摘The two remarkable features of ternary values and a massive unit with thousands bits of parallel computation will make the ternary optical computer (TOC) with modified signed-digit (MSD) adder more powerful and e?cient than ever before for numerical calculations. Based on the decrease-radix design presented previously, a TOC can satisfy either a user requiring huge capacity for data calculations or one with a moderate amount of data, if it is equipped with a prepared adder. Furthermore, with the application of pipelined operations and the proposed data editing technique, the e?ciency of the prepared adder can be greatly improved, so that each calculated result can be obtained almost within one clock cycle. It is hopeful that by employing a MSD adder, users will be able to enter a new dimension with the creation of a new multiplier, new divider, as well as new matrix operator in a TOC in the near future. | JIN Yi SHEN YunFu PENG JunJie XU ShiYi DING GuangTai YUE DongJian YOU HaiHang | 2010 | Science China(Information Sciences)2010,53,11: | 26 |
| 2 | Experiment on Leader Propagation Characteristics of Air Gaps in UHVDC Transmission Towers Under Positive Switching Impulse Voltages显示文摘Rapid developments in EHV/UHV transmission systems require a deeper understanding of the mechanism of long air gap discharge.Leader propagation is one of the main processes in long gap breakdown.In this paper,the leader propagation characteristics of real size±800 kV UHVDC transmission tower gaps under positive switching impulse voltages(185/2290μs)are investigated.An integrated observation platform consisting of an impulse voltage divider,a coaxial shunt,a high-speed video camera,and a set of integrated optical electric field sensors(IOES),is established.The waveforms of impulse voltage,discharge current,electric field variation at specific positions,and time-resolved photographs of discharge morphology are recorded.Axial leader velocity and the relationship between leader advancements and injected charge are obtained.The typical value of leader stable propagation velocity is 1.7–2.2 cm/μs,which varies slightly with the gap length and applied voltage amplitude.The leader velocity in the re-illumination process is much higher,and is seen as varying from 5 cm/μs to 30 cm/μs,with an average value around 10 cm/μs.The charge in leader channel per unit length is 20–40μC/m,which illustrates a near-direct proportion relationship between discharge current and leader velocity.The observed parameters are important for further simulation of the tower gap breakdown processes. | Xuan Zhou She Chen Hai Wang Rong Zeng Chijie Zhuang Junjie Yu Yujian Ding | 2015 | CSEE Journal of Power and Energy Systems2015,1,3: | 12 |
| 3 | PGE2 activates EP4 in subchondral bone osteoclasts to regulate osteoarthritis显示文摘Prostaglandin E2(PGE2), a major cyclooxygenase-2(COX-2) product, is highly secreted by the osteoblast lineage in the subchondral bone tissue of osteoarthritis(OA) patients. However, NSAIDs, including COX-2 inhibitors, have severe side effects during OA treatment. Therefore, the identification of novel drug targets of PGE2 signaling in OA progression is urgently needed. Osteoclasts play a critical role in subchondral bone homeostasis and OA-related pain. However, the mechanisms by which PGE2 regulates osteoclast function and subsequently subchondral bone homeostasis are largely unknown. Here, we show that PGE2 acts via EP4 receptors on osteoclasts during the progression of OA and OA-related pain. Our data show that while PGE2 mediates migration and osteoclastogenesis via its EP2 and EP4 receptors, tissue-specific knockout of only the EP4 receptor in osteoclasts(EP4 Lys M) reduced disease progression and osteophyte formation in a murine model of OA. Furthermore, OA-related pain was alleviated in the EP4 Lys M mice, with reduced Netrin-1 secretion and CGRP-positive sensory innervation of the subchondral bone. The expression of plateletderived growth factor-BB(PDGF-BB) was also lower in the EP4 Lys Mmice, which resulted in reduced type H blood vessel formation in subchondral bone. Importantly, we identified a novel potent EP4 antagonist, HL-43, which showed in vitro and in vivo effects consistent with those observed in the EP4 Lys Mmice. Finally, we showed that the Gαs/PI3 K/AKT/MAPK signaling pathway is downstream of EP4 activation via PGE2 in osteoclasts. Together, our data demonstrate that PGE2/EP4 signaling in osteoclasts mediates angiogenesis and sensory neuron innervation in subchondral bone, promoting OA progression and pain, and that inhibition of EP4 with HL-43 has therapeutic potential in OA. | Wenhao Jiang Yunyun Jin Shiwei Zhang Yi Ding Konglin Huo Junjie Yang Lei Zhao Baoning Nian Tao PZhong Weiqiang Lu Hankun Zhang Xu Cao Karan Mehul Shah Ning Wang Mingyao Liu Jian Luo | 2022 | Bone Research2022,10,2: | 7 |
| 4 | The RppC-AvrRppC NLR-effector interaction mediates the resistance to southern corn rust in maize显示文摘Southern corn rust(SCR),caused by the fungal pathogen Puccinia polysora,is a major threat to maize pro-duction worldwide.Efficient breeding and deployment of resistant hybrids are key to achieving durable control of SCR.Here,we report the molecular cloning and characterization of RppC,which encodes an NLR-type immune receptor and is responsible for a major SCR resistance quantitative trait locus.Further-more,we identified the corresponding avirulence effector,AvrRppC,which is secreted by P.polysora and triggers RppC-mediated resistance.Allelic variation of AvrRppC directly determines the effectiveness of RppC-mediated resistance,indicating that monitoring of AvrRppC variants in the field can guide the rational deployment of RppC-containing hybrids in maize production.Currently,RppC is the most frequently deployed SCR resistance gene in China,and a better understanding of its mode of action is crit-ical for extending its durability. | Ce Deng April Leonard James Cahill Meng Lv Yurong Li Shawn Thatcher Xueying Li Xiaodi Zhao Wenjie Du Zheng Li Huimin Li Victor Llaca Kevin Fengler Lisa Marshall Charlotte Harris Girma Tabor Zhimin Li Zhiqiang Tian Qinghua Yang Yanhui Chen Jihua Tang Xintao Wang Junjie Hao Jianbing Yan Zhibing Lai Xiaohong Fei Weibin Song Jinsheng Lai Xuecai Zhang Guoping Shu Yibo Wang Yuxiao Chang Weiling Zhu Wei Xiong Juan Sun Bailin Li Junqiang Ding | 2022 | Molecular Plant2022,15,5: | 6 |
| 5 | An experimental study on metal precipitation driven by fluid mixing: implications for genesis of carbonate-hosted lead–zinc ore deposits显示文摘A type of carbonate-hosted lead–zinc(Pb–Zn)ore deposits, known as Mississippi Valley Type(MVT)deposits, constitutes an important category of lead–zinc ore deposits. Previous studies proposed a fluid-mixing model to account for metal precipitation mechanism of the MVT ore deposits, in which fluids with metal-chloride complexes happen to mix with fluids with reduced sulfur, producing metal sulfide deposition. In this hypothesis, however, the detailed chemical kinetic process of mixing reactions, and especially the controlling factors on the metal precipitation are not yet clearly stated. In this paper, a series of mixing experiments under ambient temperature and pressure conditions were conducted to simulate the fluid mixing process, by titrating the metal-chloride solutions, doping withor without dolomite, and using NaHS solution. Experimental results, combined with the thermodynamic calculations, suggest that H_2S, rather than HS^-or S^(2-),dominated the reactions of Pb and/or Zn precipitation during the fluid mixing process, in which metal precipitation was influenced by the stability of metal complexes and the pH. Given the constant concentrations of metal and total S in fluids, the pH was a primary factor controlling the Pb and/or Zn metal precipitation. This is because neutralizing or neutralized processes for the ore-forming fluids can cause instabilities of Pb and/or Zn chloride complexes and re-distribution of sulfur species, and thus can facilitate the hydrolysis of Pb and Zn ions and precipitation of sulfides. Therefore, a weakly acidic to neutral fluid environment is most favorable for the precipitation of Pb and Zn sulfides associated with the carbonate-hosted Pb–Zn deposits. | Yan Zhang Runsheng Han Xing Ding Junjie He Yurong Wang | 2019 | Acta Geochimica2019,38,2: | 4 |
| 6 | Recent progress on lanthanide complexes/clay minerals hybrid luminescent materials显示文摘The unique luminescent performance of lanthanide complexes/clay minerals hybrid materials has been fascinating many researchers for recent decades.It not only retains the excellent luminescent characteristics of lanthanide complexes but also improves the poor stability of the complexes.In this article,we introduce the luminescence mechanism of lanthanide complexes and point out the necessity of their combination with clay minerals.After the analysis of the structure and interlayer environment differences of 1:1-type and 2:1-type clay minerals,the intercalation methods(covalent grafting and ion exchange)appropriate for different clay minerals are summarized with examples.Based on the luminescence characteristics of the hybrid materials,the applications of these materials as luminescent probes in recognition of specific metal cations and molecules,detection of pH value,and temperature are reviewed.Finally,the current problems in the preparation of lanthanide complexes/clay minerals hybrid luminescent materials and shortcomings that need improvement in their performance are analyzed,and the application prospect is forecast. | Ga Zhang Lefu Mei Junjie Ding Ke Su Qingfeng Guo Guocheng Lv Libing Liao | 2022 | Journal of Rare Earths2022,40,9: | 2 |
| 7 | Yield-scaled nitrous oxide emissions from nitrogen-fertilized croplands in China: A meta-analysis of contrasting mitigation scenarios显示文摘Nitrogen(N) losses in cropland resulting from the application of synthetic fertilizers decrease crop productivity and exacerbate environmental pollution.Mitigation measures, such as reduction in N fertilizer application rates, can have unintentional adverse effects on crop yield. We conducted a meta-analysis of soil N_(2)O emissions from agricultural fields across China under contrasting mitigation scenarios as a novel approach to identify the most effective strategy for the mitigation of emissions of N_(2)O derived from N fertilizer use in China. Current standard agricultural practice was used as a baseline scenario(BS), and 12 potential mitigation scenarios(S1–S12) were derived from the available literature and comprised single and combinations of management scenarios that accounted for crop yield. Mitigation scenarios S6(nitrification inhibitor 3,4-dimethylpyrazole phosphate) and S11(20% reduction in N application rate plus nitrification inhibitor dicyandiamide) in maize, rice, and wheat crops led to an average 56.0% reduction in N_(2)O emissions at the national level, whereas scenario S4(nitrification inhibitor dicyandiamide) led to yield optimization, with a 14.0% increase for maize and 8.0% increase for rice as compared to the BS. Implementation of these most effective mitigation scenarios(S4, S6, and S11) might help China, as a signatory to the 2015 United Nations Framework Convention on Climate Change(Paris Agreement), to achieve a 30% reduction in N_(2)O emissions by 2030. | Garba ALIYU Jiafa LUO Hong J.DI Deyan LIU Junji YUAN Zengming CHEN Tiehu HE Weixin DING | 2021 | Pedosphere2021,31,2: | 2 |
| 8 | Field test on temperature field and thermal stress for prestressed concrete box-girder bridge显示文摘A field test was conducted to investigate the distribution of temperature field and the variation of thermal stress for a prestressed concrete(PC)box-girder bridge.The change of hydration heat temperature consists of four periods:temperature rising period,constant temperature period,rapid temperature fall period and stow temperature fall period.The peak value of hydration heat temperature increases with the increasing casting temperature of concrete;the relation between them is approximately linear.According to field tests,the thermal stress incurred by hydration heat may induce temperature cracks on the PC box-girder.Furthermore,the nonlinear distribution of temperature gradient and the fluctuation of thermal stress induced by exposure to sunlight were also obtained based on continuous in-situ monitoring.Such results show that the prevailing Chinese Code(2004)is insufficient since it does not take into account the temperature gradient of the bottom slab.Finally,some preventive measures against temperature cracks were proposed based on related studies.The conclusions can provide valuable reference for the design and construction of PC box-girder bridges. | Baoguo CHEN Rui DING Junjie ZHENG Shibiao ZHANG | 2009 | Frontiers of Structural and Civil Engineering2009,3,2: | 2 |
| 9 | Recent Progress in Atmospheric Chemistry Research in China: Establishing a Theoretical Framework for the “Air Pollution Complex”显示文摘Atmospheric chemistry research has been growing rapidly in China in the last 25 years since the concept of the“air pollution complex”was first proposed by Professor Xiaoyan TANG in 1997.For papers published in 2021 on air pollution(only papers included in the Web of Science Core Collection database were considered),more than 24000 papers were authored or co-authored by scientists working in China.In this paper,we review a limited number of representative and significant studies on atmospheric chemistry in China in the last few years,including studies on(1)sources and emission inventories,(2)atmospheric chemical processes,(3)interactions of air pollution with meteorology,weather and climate,(4)interactions between the biosphere and atmosphere,and(5)data assimilation.The intention was not to provide a complete review of all progress made in the last few years,but rather to serve as a starting point for learning more about atmospheric chemistry research in China.The advances reviewed in this paper have enabled a theoretical framework for the air pollution complex to be established,provided robust scientific support to highly successful air pollution control policies in China,and created great opportunities in education,training,and career development for many graduate students and young scientists.This paper further highlights that developing and low-income countries that are heavily affected by air pollution can benefit from these research advances,whilst at the same time acknowledging that many challenges and opportunities still remain in atmospheric chemistry research in China,to hopefully be addressed over the next few decades. | Tong ZHU Mingjin TANG Meng GAO Xinhui BI Junji CAO Huizheng CHE Jianmin CHEN Aijun DING Pingqing FU Jian GAO Yang GAO Maofa GE Xinlei GE Zhiwei HAN Hong HE Ru-Jin HUANG Xin HUANG Hong LIAO Cheng LIU Huan LIU Jianguo LIU Shaw Chen LIU Keding LU Qingxin MA Wei NIE Min SHAO Yu SONG Yele SUN Xiao TANG Tao WANG Tijian WANG Weigang WANG Xuemei WANG Zifa WANG Yan YIN Qiang ZHANG Weijun ZHANG Yanlin ZHANG Yunhong ZHANG Yu ZHAO Mei ZHENG Bin ZHU Jiang ZHU | 2023 | Advances in Atmospheric Sciences2023,40,8: | 2 |
| 10 | Animal exercise studies in cardiovascular research:Current knowledge and optimal design--A position paper of the Committee on Cardiac Rehabilitation,Chinese Medical Doctors’Association显示文摘Growing evidence has demonstrated exercise as an effective way to promote cardiovascular health and protect against cardiovascular diseases However,the underlying mechanisms of the beneficial effects of exercise have yet to be elucidated.Animal exercise studies are widely used to investigate the key mechanisms of exercise-induced cardiovascular protection.However,standardized procedures and well-established evaluation indicators for animal exercise models are needed to guide researchers in carrying out effective,high-quality animal studies using exercise to prevent and treat cardiovascular diseases.In our review,we present the commonly used animal exercise models in cardiovascular research and propose a set of standard procedures for exercise training,emphasizing the appropriate measurements and analysis in these chronic exercise models.We also provide recommendations for optimal design of animal exercise studies in cardiovascular research,including the choice of exercise models,control of exercise protocols,exercise at different stages of disease,and other considerations,such as age,sex,and genetic background.We hope that this position paper will promote basic research on exercise-induced cardiovascular protection and pave the way for successful translation of exercise studies from bench to bedside in the prevention and treatment of cardiovascular diseases. | Yihua Bei Lei Wang Rongjing Ding Lin Che Zhiqing Fan Wei Gao Qi Liang Shenghui Lin Suixin Liu Xiao Lu Yuqin Shen Guifu Wu Jian Yang Guolin Zhang Wei Zhao Lan Guo Junjie Xiao | 2021 | Journal of Sport and Health Science2021,10,6: | 2 |
| 11 | Photonic devices based on thin-film lithium niobate on insulator显示文摘Lithium niobate on insulator(LNOI)is rising as one of the most promising platforms for integrated photonics due to the high-index-contrast and excellent material properties of lithium niobate,such as wideband transparency from visible to mid-infrared,large electro-optic,piezoelectric,and second-order harmonic coefficients.The fast-developing micro-and nanostructuring techniques on LNOI have enabled various structure,devices,systems,and applications.In this contribution,we review the latest developments in this platform,including ultra-high speed electro-optic modulators,optical frequency combs,opto-electro-mechanical system on chip,second-harmonic generation in periodically poled LN waveguides,and efficient edge coupling for LNOI. | Shuai Yuan Changran Hu An Pan Yuedi Ding Xuanhao Wang Zhicheng Qu Junjie Wei Yuheng Liu Cheng Zeng† Jinsong Xia | 2021 | Journal of Semiconductors2021,42,4: | 2 |
| 12 | Hyaluronidase-triggered anticancer drug and siRNA delivery from cascaded targeting nanoparticles for drug- resistant breast cancer therapy显示文摘药抵抗在结缔组织生长的治疗使标准化疗变为无效因素(CTGF )-overexpressing 乳癌。由共同嵌入胸肿瘤渗透房间的肽( PEGA-pVEC )和玻尿的酸(哈)作为指向媒介,新奇串联指向的 nanoparticles ( HACT NP )在格格声 mesoporous 硅石上被创造(为与 anticancer 药一起的 siRNAs 的针尖交货的 rmSiO 2)支架,瞄准在 vivo 克服 CTGF-overexpressing 乳癌的药抵抗。指向的 nanoparticles 有选择地在 PEGA-pVEC 肽的指导下面在 vasculature 积累了,在另一个指向的代理人的帮助下由调停受体的 endocytosis 串联了,哈,介绍一在比单个指向指向能力的 vivo 肿瘤更大 ligand 向量。另外, HA 壳在货物运输过程期间阻止了治疗学的药的漏直到玻尿酸酵素(HAase ) 在 lysosomes 进入之上触发了降级,保证在目标房间内的一个可控制的药版本。当保护的壳瓦解时,释放 siRNA 负责了到基因与药抵抗联系了的沉默, CTGF,因此便于导致 doxorubicin 的 apoptosis。串联指向的媒介(PEGA-pVEC 并且哈) 在 vivo 推进指导精确的治疗,当进一个化疗药交货系统的 siRNAs 的封装为药抵抗癌症的治疗提供有效策略时。 | Jie Ding Tingxizi Liang Ying Zhou Zhiwei He Qianhao Min Liping Jiang Junjie Zhu | 2017 | Nano Research2017,10,2: | 2 |
| 13 | Genesis of the Weiquan Ag-Polymetallic Deposit in East Tianshan, China: Evidence from Zircon U-Pb Geochronology and C-H-O-S-Pb Isotope Systematics显示文摘The Weiquan Ag-polymetallic deposit is located on the southern margin of the Central Asian Orogenic Belt and in the western segment of the Aqishan-Yamansu arc belt in East Tianshan,northwestern China. Its orebodies, controlled by faults, occur in the lower Carboniferous volcanosedimentary rocks of the Yamansu Formation as irregular veins and lenses. Four stages of mineralization have been recognized on the basis of mineral assemblages, ore fabrics, and crosscutting relationships among the ore veins. Stage I is the skarn stage(garnet + pyroxene), Stage Ⅱ is the retrograde alteration stage(epidote + chlorite + magnetite ± hematite 士 actinolite ± quartz),Stage Ⅲ is the sulfide stage(Ag and Bi minerals + pyrite + chalcopyrite + galena + sphalerite + quartz ± calcite ± tetrahedrite),and Stage IV is the carbonate stage(quartz + calcite ± pyrite). Skarnization,silicification, carbonatization,epidotization,chloritization, sericitization, and actinolitization are the principal types of hydrothermal alteration. LAICP-MS U-Pb dating yielded ages of 326.5±4.5 and 298.5±1.5 Ma for zircons from the tuff and diorite porphyry, respectively. Given that the tuff is wall rock and that the orebodies are cut by a late diorite porphyry dike, the ages of the tuff and the diorite porphyry provide lower and upper time limits on the age of ore formation. The δ^(13)C values of the calcite samples range from-2.5‰ to 2.3‰, the δ^(18)O_(H2 O) and δD_(VSMOW) values of the sulfide stage(Stage Ⅲ) vary from 1.1‰ to 5.2‰ and-111.7‰ to-66.1‰, respectively,and the δ^(13)C, δ^(18)O_(H2 O) and δD_(V-SMOW) values of calcite in one Stage IV sample are 1.5‰,-0.3‰, and-115.6‰, respectively. Carbon, hydrogen, and oxygen isotopic compositions indicate that the ore-forming fluids evolved gradually from magmatic to meteoric sources. The δ^(34)S_(V-CDT) values of the sulfides have a large range from-6.9‰ to 1.4‰, with an average of-2.2‰, indicating a magmatic source, possibly with sedimentary contributions. The ^(206)Pb/^(204)Pb, ^(207)Pb/^(204)Pb, and ^(208)Pb/^(204)Pb ratios of the sulfides are 17.9848-18.2785,15.5188-15.6536, and 37.8125-38.4650, respectively, and one whole-rock sample at Weiquan yields^(206)Pb/^(204)Pb,^(207)Pb/^(204)Pb, and ^(208)Pb/^(204)Pb ratios of 18.2060, 15.5674, and 38.0511,respectively. Lead isotopic systems suggest that the ore-forming materials of the Weiquan deposit were derived from a mixed source involving mantle and crustal components. Based on geological features, zircon U-Pb dating, and C-H-OS-Pb isotopic data, it can be concluded that the Weiquan polymetallic deposit is a skarn type that formed in a tectonic setting spanning a period from subduction to post-collision. The ore materials were sourced from magmatic ore-forming fluids that mixed with components derived from host rocks during their ascent, and a gradual mixing with meteoric water took place in the later stages. | DING Hui GE Wensheng DONG Lianhui ZHANG Liangliang CHEN Xiaodong LIU Yan NIE Junjie | 2018 | Acta Geologica Sinica(English Edition)2018,92,3: | 2 |
| 14 | Multifunctional succinate additive for flexible perovskite solar cells with more than 23%power-conversion efficiency显示文摘Flexible perovskite solar cells(FPSCs)have emerged as power sources in versatile applications owing to their high-efficiency characteristics,excellent flexibility,and relatively lowcost.Nevertheless,undesired strain in perovskite films greatly impacts the power-conversion efficiency(PCE)and stability of PSCs,particularly in FPSCs.Herein,a novel multifunctional organic salt,methylammonium succinate,which can alleviate strain and reinforce grain boundaries,was incorporated into the perovskite film,leading to relaxed microstrain and a lower defect concentration.As a result,a PCE of 25.4%for rigid PSCs and a record PCE of 23.6%(certified 22.5%)for FPSCs have been achieved.In addition,the corresponding FPSCs exhibited excellent bending durability,maintaining85%of their initial efficiency after bending at a 6 mm radius for 10000 cycles. | Minghao Li Junjie Zhou Liguo Tan Hang Li Yue Liu Chaofan Jiang Yiran Ye Liming Ding Wolfgang Tress Chenyi Yi | 2022 | The Innovation2022,3,6: | 2 |
| 15 | Exploring the energy transfer processes in Lu2(1-x)Y2xSiO5:Ce crystals显示文摘A systematical exploration of energy transfer processes in Lu_(2(1-x)Y_2 xSiO_5:Ce(LYSO) crystals under vacuum ultraviolet-ultraviolet(VUV-UV) excitation was implemented. The relationship between energy transfer and scintillation properties was established. It is revealed that there are mainly three energy transfer types in the crystal i.e. host → Ce1/Ce2/STEs, Ce1 →Ce2 and STEs → Ce1/Ce2. The influence of Y content of the LYSO crystals on the energy transfer efficiency of the above processes was carefully analyzed. Besides, we find a special component of the crystal i.e. Y content = 45 at% at which the energy resolution and light output of the crystal perform the worst. | Tiantian Wang Dongzhou Ding Xiaopu Chen Wei Hou Junjie Shi | 2018 | Journal of Rare Earths2018,36,7: | 2 |
| 16 | High hydrostatic pressure and thermal treatments for ready-to-eat wine-marinated shrimp: An evaluation of microbiological and physicochemical qualities显示文摘 | Junjie Yi Liang Zhang Guowei Ding Xiaosong Hu Xiaojun Liao Yan Zhang | 2013 | Innovative Food Science and Emerging Technologies2013,,: | 1 |
| 17 | Field test on temperature field and thermal stress for prestressed concrete box-girder bridge显示文摘 | Baoguo Chen Rui Ding Junjie Zheng Shibiao Zhang | 2009 | Frontiers of Architecture and Civil Engineering in China2009,,2: | 1 |
| 18 | Microwave heating synthesis of HgS and PbS nanocrystals in ethanol solvent 显示文摘 | Ding Tao Zhu Junjie | 2003 | Materials Science and Enginee- ring B:Solid State Materials for Advanced Technology2003,100,3: | 1 |
| 19 | Study of the planar optical fiber Bragg grating hydrophone probe with acceleration compensation显示文摘自从一个平面光 FBG 水中听音器的探查加速反应,是很明显的并且在正常上有不利影响在水下声学的压力察觉,采用一项加速赔偿措施的一个加速不敏感性方法这里被介绍。结果显示由利用这个方法,相等的压力产量适用由当结构的敏感从 28 fm/Pa 减少到 20 fm/Pa 时,然而,回声频率从 6.2 kHz 稍微增加到 6.5 kHz。改进动态频率特征的增加的回声频率帮助,并且当结构的敏感被减少时,它能被补偿由改进光 FBG 动态波长讯问敏感。光 FBG 水中听音器的系统敏感被它的波长讯问敏感和并非探查结构敏感主要决定。因此,加速赔偿方法将有宽广实际应用。 | WANG Junjie DING Tengjiao JIANG Desheng XIE Guanmo HUANG Junbin | 2011 | Chinese Journal of Acoustics2011,30,2: | 1 |
| 20 | Load Transferring Mechanism on Transition Section of Composite Bucket Foundation for Offshore Wind Turbines显示文摘The composite bucket foundation(CBF) is a new kind of foundation which has been applied in the offshore wind industry. A reasonable connection pattern between the tower and the CBF top cover is crucial for load transmissions from the superstructure. Therefore, it is essential to choose an optimum structure type for the transition section. The line type and the arc transition section models were established by ABAQUS, and the internal forces of cross section were extracted along the height direction. Specifically, the force transfer mechanism for different types of the transition sections was investigated comparatively with monotonic as well as composite loadings. The results show that the curved transition structure exhibits the better mechanical characteristics under the monotonic and composite loadings, and the reason can be illustrated that its specific arc-shape structure can effectively convert the tremendous bending moment from the turbine tower into the limited tensile and compressive stresses downwards, without the occurrence of force concentration. | Puyang Zhang Zhi Zhang Junjie Ma Hongyan Ding Ruiqi Hu | 2017 | Transactions of Tianjin University2017,23,5: | 1 |