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Theoretical Analysis of harbor Resonance in harbor with An Exponential Bottom Profile

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China Ocean Engineering 2015年第6期29卷 821-834页

作者：王岗郑金海梁秋华张蔚黄诚 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University College of harbor Coastal and Offshore Engineering Hohai University State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology School of Civil Engineering & Geosciences Newcastle University China Petroleum Pipeline Bureau No. 6 Construction Company

The general features of oscillations within a rectangular harbor of exponential bottom are investigated analytically. Based on the linear shallow water approximation, analytical solutions for longitudinal oscillations induced by the incident perpendicular wave are obtained by the method of matched asymptotics. The analytic results show that the resonant frequencies are shifted to larger values as the water depth increases and the oscillation amplitudes are enhanced due to the shoaling effect. Owing to the refraction effect, there could be several transverse oscillation modes existing in when the width of the harbor is on the order of the oscillation wavelength. These transverse oscillations are similar to standing edge waves, and there are m node lines in the longshore direction and n node lines running in the offshore direction corresponding to mode（n, m）. Furthermore, the transverse eigen frequency is not only related to the width of the harbor, but also to the boundary condition at the backwall and the bottom shape.

关键词： harbor resonance oscillations seiches long-waves shallow water equations

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Numerical simulation of tidal current and erosion and sedimentation in the Yangshan deep-water harbor of Shanghai

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International Journal of Sediment Research 2009年第3期24卷 287-298页

作者： ZUO Shu-Hua1, ZHANG Ning-Chuan2, LI Bei3, ZHANG Zheng4, and ZHU Zhi-Xia51 Ph.D candidate, State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China. 2 Dr., Prof., State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China 3 Research Scientist, Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China 4 Research Scientist, Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China 5 Dr., Prof., Department of harbor & Coastal Engineering, Shanghai Jiaotong University, Shanghai 200030, China Ph.D candidate State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China Key Laboratory of Engineering Sediment of Ministry of Communications Tianjin Research Institute of Water Transport Engineering Tianjin 300456 China Dr. Prof. State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China Research Scientist Key Laboratory of Engineering Sediment of Ministry of Communications Tianjin Research Institute of Water Transport Engineering Tianjin 300456 China Dr. Prof. Department of Harbor & Coastal Engineering Shanghai Jiaotong University Shanghai 200030 China

Yangshan near-shore sea area is the multi-island and multi-channel area with strong flow velocity and high suspended sediment concentration. Based on the characteristics of tidal currents, waves, and sediment in the Yangshan area, a two-dimensional numerical model of tidal currents, sediment transport, and sea bed deformation is developed. In the model, the effects of tidal currents and wind waves on sediment transport are considered. According to characteristics of the study area, unstructured grids are applied to fit the boundaries of the near-shore sea area. The results show that the calculated values are in good agreement with the measured data. The field of tidal currents, suspended sediment concentrations, and the deformation of the seabed can be successfully simulated.

关键词： Yangshan deep-water port Tidal currents Sediment Suspended sediment concentration Seabed deformation Numerical simulation

harbor HOUSE 动物元素闯进家时尚意趣享不尽

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缤纷 2012年第12期 159-159页

一直以来,自然与生命的主题被时尚界反复诠释着,其中也包括了对很多动物界精灵的演绎,无论是小巧的昆虫,还是勇猛的兽类,都给了设计师们无数的设计灵感,或另辟蹊径、或推陈出新,让动物元素化作时装界的荷尔蒙,在每年的T台上掀起来了一... 详细信息

一直以来,自然与生命的主题被时尚界反复诠释着,其中也包括了对很多动物界精灵的演绎,无论是小巧的昆虫,还是勇猛的兽类,都给了设计师们无数的设计灵感,或另辟蹊径、或推陈出新,让动物元素化作时装界的荷尔蒙,在每年的T台上掀起来了一次又一次关乎美的高潮。如今,动物元素的身影也频频出现在了很多家居产品上,它们以纹样或图腾等的形式,被设计师们巧妙地带入了家居领域,为家居世界注入了趣味十足、美仑美奂的新鲜活力。

关键词：时尚设计灵感动物纹设计师元素家居自然主义主题小巧丛林

亲近自然享受闲适生活 harbor House户外家具新品推荐

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缤纷 2012年第6期 163-163页

六月,清新如画,harbor House拥抱着初夏的缤纷情致,用细腻的思绪为家营造一份夏日的意境和情调,期待与您分享最完整的美式休闲居家生活!这一季,Sumner、Monroe、Duncan和Smyth四大户外家具系列全新亮相harbor House 2012年春季家居舞台... 详细信息

六月,清新如画,harbor House拥抱着初夏的缤纷情致,用细腻的思绪为家营造一份夏日的意境和情调,期待与您分享最完整的美式休闲居家生活!这一季,Sumner、Monroe、Duncan和Smyth四大户外家具系列全新亮相harbor House 2012年春季家居舞台,每一组户外家具拥有天然环保的优质材质和简约流畅的线条造型,在精致饰品的搭配点缀下,呈现出舒适怡人的休闲空间,为你带来纯正浓郁的美式生活情趣。从室内穆步室外,harbor House户外家具让您的家更亲近自然!藤编户外家具是美式户外家具的典范,初夏时节,它们为人们创造出一个户外休闲和娱乐的完美场地。

关键词：户外家具近自然天然材质特点组合搭配新品推荐享受生活情趣

EVALUATION OF THE harbor OPERATION RATE CONSIDERING LONG PERIOD WAVES

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EVALUATION OF THE HARBOR OPERATION RATE CONSIDERING LONG PER...

Cultivating potential:Harnessing plant stem cells for agricultural crop improvement

亚太海岸工程会议

作者： Duk-Joong Kim Kyu-Han Kim Ji-Hee Kim Chong-Kun Pyun Division of Civil ＆ Environmental System Engineering Kwandong University Kangwondo 210-701Korea Division of Civil ＆ Environmental System Engineering Kwandong University Kangwondo 210-701Korea Coastal and harbor Engineering Research Laboratory Korea Ocean Research and Development InstituteAnsan P.O. Box 29Seoul 425-600 Korea Department of Civil ＆ Environmental Engineering Myungji University Kyunggido 449-728 Korea

＜正＞In this study, the characteristics of long-period waves are analyzed by field observation at Sokcho harbor on the eastern coast of Korea. Firstly, the pressure data obtained from field observation are transformed into water surface elevations and the wave by wave analysis is applied to the observed wave data. Also, we select long period waves by setting up the range 30-200sec, and suggest the relationship between ordinary waves and long period waves using the concept of the significant wave height. And, we examine the effects of the long period waves on the rate of the harbor operation. The observation results demonstrate that the long period waves with heights of 2.7-39.2cm and periods of 35-163sec exist at Sokcho harbor. Also, we found the rates of harbor operation based on long period waves are 61.8%-99.5% lower than the usual rates of 93.8%-100%.

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Molecular Plant 2024年第1期17卷 50-74页

作者： Penelope Lindsay Kyle W.Swentowsky David Jackson Cold Spring harbor Laboratory Cold Spring HarborNY 11724USA National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhanHubei430070China

Meristems are stem cell-containing structures that produce all plant organs and are therefore important targets for crop *** regulators control the balance and rate of cell divisions within the *** these regulators impacts meristem architecture and,as a consequence,plant *** this review,we discuss genes involved in regulating the shoot apical meristem,inflorescence meristem,axillary meristem,root apical meristem,and vascular cambium in *** highlight several examples showing how crop breeders have manipulated developmental regulators to modify meristem growth and alter crop traits such as inflorescence size and branching *** transformation techniques are another innovation related to plant meristem research because they make crop genome engineering *** discuss recent advances on plant transformation made possible by studying genes controlling meristem ***,we conclude with discussions about how meristem research can contribute to crop improvement in the coming decades.

关键词： meristem crop improvement plant transformation plant breeding crop yield gene editing

Stimuli-evoked NOergic molecules and neuropeptides at acupuncture points and the gracile nucleus contribute to signal transduction of propagated sensation along the meridian through the dorsal medulla-thalamic pathways

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Journal of Integrative Medicine 2024年第5期22卷 515-522页

作者： Sheng-xing Ma Lundquist Institute for Biomedical Innovation Harbor-University of California at Los Angeles (UCLA) Medical Center Department of Obstetrics and Gynecology David Geffen School of Medicine at UCLA and Harbor-UCLA Medical Center

Numerous studies from different international groups have demonstrated that sensations can be propagated along acupuncture channel pathways. The propagated sensation along the channel pathway(PSCP)can be elicited by electroacupuncture(EA), transcutaneous electrical nerve stimulation(TENS), manual acupuncture(MA), and heat applied to distal acupuncture points(acupoints). Nitric oxide(NO) levels were reported to be elevated in the gracile nucleus and skin regions near to the EA sites, with higher levels at acupoints associated with an enhanced expression of NO synthase and transient receptor potential vanilloid type 1. The stimuli, EA, MA, TENS, and heat, have been used to elicit axonal reflexes, which increase local release of NO and neuropeptides such as calcitonin gene related peptide. Furthermore, the sensation of PSCP along the body surface occurs only ipsilaterally to the stimulated acupoints in various human studies, which does not support the involvement of the spinal-thalamic pathway, which would involve cross over transmission of the signals. The gracile nucleus receives ascending input from the sciatic nerve and responds to somatosensory stimulation mainly on the ipsilateral side via the dorsal column pathway. EA at Zusanli(ST36) increases NO release and expression of NO synthase mainly in the ipsilateral side of the gracile nucleus, while the cardiovascular effects and analgesic responses to EA at ST36 are changed by influences of L-arginine-derived NO synthesis in the ipsilateral gracile nucleus in rats. The stimuli-induced release of NOergic molecules and neuropeptides exist high levels in the acupoints, which contain rich neuronal components and blood vessels. Enhanced NOergic molecules at acupoints cause axon reflexes during the stimuli, which elevate cutaneous blood flow. Elevated NOergic molecules and local blood flow may spread over acupoints one after another along the meridian lines differing from nerve pathways following the stimuli to induce PSC

关键词： Axon reflex Biophysical approaches Calcitonin related polypeptide Dorsal funiculus tract Meridian system Nitric oxide

Progressive meristem and single-cell transcriptomes reveal the regulatory mechanisms underlying maize inflorescence development and sex differentiation

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Molecular Plant 2024年第7期17卷 1019-1037页

作者： Yonghao Sun Liang Dong Lu Kang Wanshun Zhong David Jackson Fang Yang National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China Cold Spring harbor Laboratory Cold Spring HarborNY 11724USA School of Agriculture Sun Yat-Sen UniversityShenzhen 518107China

Maize develops separate ear and tassel inflorescences with initially similar morphology but ultimately different architecture and *** detailed regulatory mechanisms underlying these changes still remain largely *** this study,through analyzing the time-course meristem transcriptomes and floret single-cell transcriptomes of ear and tassel,we revealed the regulatory dynamics and pathways underlying inflorescence development and sex *** identified 16 diverse gene clusters with differential spatiotemporal expression patterns and revealed biased regulation of redox,programmed cell death,and hormone signals during meristem differentiation between ear and ***,based on their dynamic expression patterns,we revealed the roles of two RNA-binding proteins in regulating inflorescence meristem activity and axillary meristem ***,using the transcriptional profiles of 53910 single cells,we uncovered the cellular heterogeneity between ear and tassel *** found that multiple signals associatedwith either enhancedcell death or reduced growth are responsiblefortassel pistil suppression,while part of the gibberellic acid signal may act non-cell-autonomously to regulate ear stamen arrest during sex *** further showed that the pistil-protection gene SILKLESS 1(SK1)functions antagonistically to the known pistil-suppression genes through regulating common molecular pathways,and constructed a regulatory network for pistil-fate ***,our study provides a deep understanding of the regulatory mechanisms underlying inflorescence development and sex differentiation in maize,laying the foundation for identifying new regulators and pathways for maize hybrid breeding and improvement.

关键词： maize inflorescence floral organ sex differentiation single-cell RNA sequencing RNA-binding protein

Examining the“revisability”benefit of hip resurfacing arthroplasty

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World Journal of Orthopedics 2024年第6期15卷 554-559页

作者： Jose George Adam J Taylor Thomas P Schmalzried Department of Orthopedics Harbor UCLA Medical CenterTorranceCA 90509United States

BACKGROUND Hip resurfacing arthroplasty(HRA)is an alternative to total hip arthroplasty(THA)that is typically reserved for young active patients because it preserves ***,the benefits of HRA only hold true if conversion THA after failed HRA provides acceptable *** To compare patient reported outcomes for conversion THA after HRA failure to primary *** A retrospective review of 36 patients(37 hips)that underwent conversion THA for failed HRA between October 2006 and May 2019 by a single surgeon was *** reported outcomes[modified Harris Hip Score(mHHS),University of California Los Angeles(UCLA)activity score]were obtained via an email-based responder-anonymous *** were compared to normative data of a primary THA cohort with similar *** analysis was performed comparing outcomes of conversion THA for adverse local tissue reaction(ALTR)vs all other causes for *** The study group had a lower mHHS than the control group(81.7±13.8 vs 90.2±11.6,P<0.01);however,both groups had similar UCLA activity levels(7.5±2.3 vs 7.2±1.6,P=0.51).Patients that underwent conversion for non-ATLR causes had similar mHHS(85.2±11.5 vs 90.2±11.6,P=0.11)and higher UCLA activity levels(8.5±1.8 vs 7.2±1.6,P<0.01)compared to the control *** that underwent conversion for ATLR had worse mHHS(77.1±14.5 vs 90.2±11.6,P<0.01)and UCLA activity levels(6.1±2.3 vs 7.2±1.6,P=0.05)when compared to the control *** Patient outcomes equivalent to primary THA can be achieved following HRA conversion to ***,inferior outcomes were demonstrated for ALTR-related HRA *** selection and perhaps further studies examining alternative HRA bearing surfaces should be considered.

关键词： Total hip arthroplasty Hip resurfacing arthroplasty Conversion total hip arthroplasty Adverse local tissue reaction Patient reported outcome measures