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Design and test of moored optical buoy
锚泊光学浮标浮体设计及近海试验

CAO Wen-xi,YANG Yue-zhong,ZHANG Jing-xiang,KE Tian-cun,LU Gui-xin,LI Cai,GUO Chao-ying,SUN Zhao-hua,
曹文熙
,杨跃忠,张敬祥,柯天存,卢桂新,李彩,郭超英,孙兆华

热带海洋学报 , 2010,
Abstract: A spar body was considered and a free-rotated saddle was used in a moored optical buoy. Theoretical results indicated that the buoy’s high initial stability enables it to be stable. Due to the centre of gravity position being lower than the buoyant centre, the rolling angle of the buoy is small, as it would result in strong ability to resist tilting and capsizing. In situ experiment results indicated that 83% of the buoy’s tilt angles are ≤10° and 54% of the buoy’s tilt angles are ≤5° under the conditions of wind speed less than 7 knots and wave height less than 3-4m, therefore the buoy performance satisfies the technical requirement for underwater light measurements. To minimize the shelf–shading effects on the light measurements, two solutions were found: First of all, stroked-out structures were used to avoid shelf-shading of buoy body, and when the solar zenith angle was 0°, the shelf-shading errors of upwelling radiance were lower than 4% and 1% for coastal and open oceans, respectively; Second, fiber spectrometer was used to avoid shelf-shading of sensors. The diameter of designed optical sensors for irradiance and radiance was 0.042m. When the beam attenuation coefficient was 0.12m-1 and the solar zenith angle was 10°, the self-shading error was 1.5% for upwelling radiance.
Distortion of Near-Surface Seawater Temperature Structure by a Moored-Buoy Hull and Its Effect on Skin Temperature and Heat Flux Estimates  [PDF]
Yoshimi Kawai,Kentaro Ando,Hiroshi Kawamura
Sensors , 2009, DOI: 10.3390/s90806119
Abstract: Previous studies have suggested that the accuracy of temperature measurements by surface-moored buoys may be affected by distortions of the near-surface temperature structure by the buoy hull on calm, sunny days. We obtained the first definite observational evidence that the temperature near the hull was not horizontally homogeneous at the same nominal depth. We observed large temperature differences of 1.0 K or more between thermometers at 0.2 m depth. The distortion of the surface temperature field yielded an error in estimates of daytime net surface heat flux up to more than 30 Wm–2.
A method fo continuous-time identification of moored systems
Beltrán-Aguedo,R.; Jordán,M. A.;
Latin American applied research , 2003,
Abstract: in this paper a method for continuous-time identification for the class of moored semisubmersible marine systems based on totally measured states is presented. the exponential convergence of parameter trajectories is analyzed in the context of conditions for persistency of excitation (pe). a regression for the estimator is constructed containing generically 312 parameters to be identified. the presented analysis has revealed that the regressor must expand a space of only 24 dimensions instead of 312 for unbiased estimates. under monochromatic excitation, pe conditions are expected to be satisfied only in chaotic behaviors. a case study of a real moored crane-platform is modelled and simulated to verify such conditions.
A method fo continuous-time identification of moored systems  [cached]
R. Beltrán-Aguedo,M. A. Jordán
Latin American applied research , 2003,
Abstract: In this paper a method for continuous-time identification for the class of moored semisubmersible marine systems based on totally measured states is presented. The exponential convergence of parameter trajectories is analyzed in the context of conditions for persistency of excitation (PE). A regression for the estimator is constructed containing generically 312 parameters to be identified. The presented analysis has revealed that the regressor must expand a space of only 24 dimensions instead of 312 for unbiased estimates. Under monochromatic excitation, PE conditions are expected to be satisfied only in chaotic behaviors. A case study of a real moored crane-platform is modelled and simulated to verify such conditions.
Hidden Markov model segmentation of hydrological and enviromental time series  [PDF]
Ath. Kehagias
Physics , 2002,
Abstract: Motivated by Hubert's segmentation procedure we discuss the application of hidden Markov models (HMM) to the segmentation of hydrological and enviromental time series. We use a HMM algorithm which segments time series of several hundred terms in a few seconds and is computationally feasible for even longer time series. The segmentation algorithm computes the Maximum Likelihood segmentation by use of an expectation / maximization iteration. We rigorously prove algorithm convergence and use numerical experiments, involving temperature and river discharge time series, to show that the algorithm usually converges to the globally optimal segmentation. The relation of the proposed algorithm to Hubert's segmentation procedure is also discussed.
我国现阶段的按资分配不是按劳分配  [PDF]
黄政明?
天府新论 , 1987,
Abstract: 在我国,随着集资入股的出现,按资分配应运而生。在理论界,有的同志从按资分配存在的客观性、合理性和积极作用出发,把它肯定为按劳分配。这是值得商榷的。所谓按资分配,就是按照入股的资金量,依一定比例去分配企业的收入。从性质上讲,按资分配乃是一种非劳分配,而决不是按劳分配。这是因为:第一,两种分配所依据的经济条件不相同。马克思指出:“消费资料的任何一种分配,都不过是生产条件本身分配的结果。而生产条件的分配,则表现生产方式本身的性质。”这就是说,生产条件分配的性质和形式,决定着参加这种生产方式的成员的消费资料的分配性质和形式。按劳分配,只有在公有制经济
贮藏期对资丘木瓜药材质量的影响  [PDF]
靳李娜,刘义梅,杨蕾磊,陈科力
北方园艺 , 2015, DOI: 10.11937/bfyy.201505050
Abstract: 以资丘木瓜药材为试材,将采收后的资丘木瓜果实进行晒制干燥,封装贮藏在阴凉干燥处,研究了不同贮藏时间对资丘木瓜含水量、齐墩果酸、熊果酸含量的影响。结果表明随着贮藏时间的增加,资丘木瓜药材中含水量从9.10%上升到14.60%,贮藏期在18个月内,资丘木瓜中齐墩果酸、熊果酸含量以及二者之和基本保持稳定,而18个月后含量开始下降,并且低于药典中的含量。该试验研究资丘木瓜商品药材0~30个月贮藏期的含水量、有效成分含量的变化,发现较长贮藏期引起药材质量下降,以期为资丘木瓜的生产管理和质量标准的制定提供科学依据。
子公司减资时母公司会计处理探讨  [PDF]
黄申(博士)
财会月刊 , 2013,
Abstract: 编制合并财务报表时,为了能够获得正确的抵销分录,需要对股权投资价值的任何变化进行处理。子公司注册资本减少是一种较特殊的情况,目前尚无文件规范。本文根据“控制性质”以及“实质重于形式”原则,针对子公司减少注册资本时母公司持股损益的会计处理提出了自己的看法。【关键词】合并报表子公司减资母公司持股损益对于子公司股本增减变化时母公司持股损益的会计处理,目前尚无针对性的规范文件。限于篇幅,本文仅探讨子公司减少注册资本时母公司的会计处理。一、回购母公司之外股份而减资子公司回购母公司之外股份而减资时,母公司持股比例与每股价值发生了变化。母公司持股损益有两种计算思路:①持股数量×每股价值差额。若子公司按所有者权益账面价值(同一控制)或公允价值(非同一控制)回购,则因每股价值不变而无持股损益;②子公司所有者权益×持股比例差额。子公司若配股,母公司因持股比例不变也无持股损益,其他情况下都会产生持股损益。子公司股份变化后母公司持股损益的处理:若认为是正常经营,则因影响当期损益而应计入投资收益;若认为属于资本性行为,则会影响所有者权益而计入资本公积;若属于非同一控制下的合并,还涉及商誉(本文均假定商誉未曾减值)出售。
A educa o ambiental e o turismo ecológico/The enviromental education and the ecological tourism
Silvia Ferreira Marques Salustiano,,Mário Jorge Cardoso Coelho Freitas,José Ramon Lamadrid Marón,Hilda Gomes Dutra Magalh?es,Cyntia Fran?a Cavalcante de Andrade,Estéfano Vizconde Veraszto,,Dirceu da Silva,Nonato Assis de Miranda,Fernanda Oliveira Simon,Rejane Machado,M?nica Aparecida Martinicos de Abreu Berton,Fernando Mattos,Glenilce Maria de Sousa Forte,Sinara Socorro Duarte Rocha,Francisco Paulo do Nascimento,Beatrice Laura Carnielli,Wilson Correia,Rogério Paiva Castro,Luciano Accioly Lemos Moreira,Sidne
ETD : Educa??o Temática Digital , 2007,
Abstract: A atividade turística no Brasil tem alcan ado grande expans o, principalmente o segmento do turismo ecológico. Este artigo foi elaborado a partir das reflex es de Dias, em sua obra Educa o Ambiental; princípios e práticas, e de Ruschman, em Turismo no Brasil; análise e tendências. Através dessas análises bibliográficas, foi possível observar a importancia de se promover a educa o ambiental, tanto no sentido formal quanto informal, e também de se relacionar a produ o do conhecimento com a atividade turística empresarial. Trata-se, portanto, de uma reflex o sobre a valoriza o e utiliza o da ciência e do conhecimento como instrumento de orienta o para se estabelecer as bases do desenvolvimento sustentável, que deve envolver diversas dimens es, tais como a econ mica, a social, a cultural e a ambiental. Tourist activities in Brazil have attained great expansion, mainly in the areas of ecological tourism. This article Written based on Dias Considerations in enviromental Education; principles and practice and Ruschman’s book Tourism in Brazil; analysis and tendency, Though those bibliographic analises it was possible to observe the importance of promoting the enviromental Education either in the formal sense on the informal, and also relating the production of knowledge to the enterprising tourist activity. Thus, it a reflection on the value and use of science and knowledge as on orientation tool to establish the basis of sustainable development which must involve the various dimensions, such as, the economical, social, cultural and enviromental ones. Keywords Turismo ecológico --- Educa o ambiental --- Desenvolvimento sustentável --- Ecological tourism --- Enviromental education --- Sustainable development
贵州亦资孔盆地煤层气资源简介  [PDF]
王国司
天然气工业 , 2003,
Abstract: ?亦资孔盆地位于贵州省六盘水市南约90km,面积1362km2.50~80年代初期,煤田地质部门在盆地周缘进行了大量的煤田地质勘查,共分为24个井田,多数达到了勘探精查阶段;“六五”至今在该区先后进行国家科技攻关项目、贵州西部浅层天然气(含煤层气)勘查项目及“九五”国家重点工业性实验项目.共完成了5口煤层气勘探井.钻井结果表明,金竹坪区块煤层气地质条件较好,有利于继续开展钻井勘探.
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