Hcable for Time-Lapse Seismic Monitoring of Marine Carbon Capture and Storage

To ensure project safety and secure public support, an integrated and comprehensive monitoring program is needed within a carbon capture and storage(CCS) project. Monitoring can be done using many well-established techniques from various fields, and the seismic method proves to be the crucial one. This method is widely used to determine the CO_(2) distribution, image the plume development, and quantitatively estimate the concentration. Because both the CO_(2) distribution and the potential migration pathway can be spatially small scale, high resolution for seismic imaging is demanded. However, obtaining a high-resolution image of a subsurface structure in marine settings is difficult. Herein, we introduce the novel Hcable(Harrow-like cable system) technique, which may be applied to offshore CCS monitoring. This technique uses a highfrequency source(the dominant frequency>100 Hz) to generate seismic waves and a combination of a long cable and several short streamers to receive seismic waves. Ultrahigh-frequency seismic images are achieved through the processing of Hcable seismic data. Hcable is then applied in a case study to demonstrate its detailed characterization for small-scale structures. This work reveals that Hcable is a promising tool for timelapse seismic monitoring of oceanic CCS.

VvAGAMOUS Affect Development of Four Different Grape Species Ovary

Grape pistil has an important influence on fruit size and quality.However,there were few studies on grape ovary,and the development process of the ovary is still unclear.Therefore,in this paper,four different grape varieties with different lengths of small inflorescences,namely‘Musct Hambourg’grape(Vitis vinifera),‘Concord’grape(Vitis labrusca),‘ShanPuTao’grape(Vitis amurensis)and‘GongNiang2Hao’grape(Vitis amurensis×Vitis vinifera)were used as test materials.Four varieties ovary were significant differences by means of stereomicroscope,paraffin section.The expression of ovary determining gene VvAGAMOUS(VvAG)and its development related genes VvCRABS CLAW(VvCRC)and VvAGAMOUS-LIKE 11(VvAGL11)with similar functions during the development of different grape varieties were preliminarily explored using fluorescence quantitative test.The relationship between VvAG and VvCRC,VvAG and VvAGL11 were analyzed using Y1H assay.Our results showed that there were obvious abdominal sutures on the surface of expect for‘Musct Hambourg’grape,and existing poly carpels.The ovary development of‘ShanPuTao’and‘GongNiang2Hao’grape was completed when the inflorescence length was less than 1 cm,while the‘Concord’and‘Musct Hambourg’grape were fully developed when the length of inflorescence was 3–4 and 4–5 cm,respectively.VvAG and VvCRC began to express in large quantities after the formation of stamen primordia,while VvAGL11 during the forming of ovule primordia.Therefore,VvAG and VvCRC mainly regulated the development of stamens and carpels and also promote the development of ovules,while VvAGL11 major regulated the development of ovules.The promoters of VvCRC and VvAGL11 were bound by VvAG.This study provides an important theoretical basis for further research on the molecular mechanism of grape ovary development.

Effect of Point Cloud Data Simplification and Encryption on Micro-Topography Data Analysis

Simplification and encryption are performed on the point cloud data concerning high-relief( 20 cm tillage) and low-relief( raking bare slope) terrain on a different scale of observation. We select three indicators( surface curvature,slope aspect and surface roughness) to evaluate the effect of simplification and encryption on micro-topography data analysis. The results show that simplification and encryption have a significant impact on the curvature of high-relief terrain,but have no significant impact on low-relief terrain. The slope aspect change is not significant after 5,10 mm data simplification and encryption; 1 mm simplification has a regular impact on surface roughness; 5 mm encryption and simplification have a complex impact on high-relief terrain; 10 mm encryption has a complex impact on high-relief terrain roughness change but a regular impact on bare slope change.

Research on Subject Nature and Objective of Physical Education Training

Physical education and training is considered as a new subject among the same type of discipline.It has a short history background and is relatively young.However,the influence of the discipline of physical education and training must not be ignored by simply blaming it as the youngest discipline.In addition,especially in the case of rapid economic development and rapid improvement in living standards today,the influence of this discipline is relatively strong.Therefore,this thesis mainly studies the subject nature and object of physical education training.The research object of this subject can be studied from three key points,such as:the curriculum of the subject,the research method and the research of the subject of education.The comprehensive development of physical education and physical education is a comprehensive discipline.

Role of Sports Based on Big Data Analysis in Promoting the Physique and Health of Children and Adolescents

Healthy body is the foundation of young people's growth.With the popularization and globalization of the Internet,multimedia technology is rapidly changing the impact of traditional media on the growth of young people.The current health situation of young people is not optimistic.The decline in physical fitness,obesity and psychological dysplasia of adolescents have aroused the concern of all sectors of society.In recent years,the emergence and dissemination of big data(BD)has brought a new dimension to the value of data applications.The combination of BD and youth health services provides young people with good health opportunities.Through the recording,analysis and release of adolescent physical health data,the system has established an extensive knowledge database on adolescent physical and mental health,thus improving the physical health of adolescents.This paper summarized and combed the overview and application of BD,and analyzed and discussed the reasons for the continuous decline of young people's physique.Through the analysis of the application of BD in the promotion of young people's physical health,this paper proposed more achievable improvement strategies and plans,and then summarizes and discusses the experiment.According to the survey and experiment,the random simulation algorithm was introduced into daily exercise,diet and life preference.The new system and health improvement strategy designed for teenagers'physical health using BD could help students improve their physical health by 55%.

工业环境下酶蛋白的催化行为与适应性改造研究进展

酶在工业上有着广泛应用和巨大潜力,但工业生产中高温、强酸/碱、高盐、有机溶剂和高底物浓度等条件仍然制约着酶的大规模应用。为使酶能更好地在工业环境下发挥催化作用,目前的主要策略是对酶进行适应性改造(如理性或半理性设计、定向进化、固定化等)。文中简要阐述了酶在工业环境下的催化行为以及近年对其适应性改造的研究进展,以期为酶的适应性改造提供参考。

Comparison of Different Excitation Schemes in Bimodal Atomic Force Microscopy in Air and Liquid Environments

Bimodal amplitude modulation atomic force microscopy(AM-AFM)is widely used in nanoscale topography and compositional contrast imaging for various materials.In this work,we use computational simulation to compare the dynamic behaviors of AFM cantilevers in three commonly used excitation schemes in bimodal AM-AFM,i.e.,the cantilever base excitation,the cantilever end excitation,and the uniform excitation along the length of the cantilever,in both air and liquid environments.The amplitude and phase spectroscopy curves and the frequency responses acquired from the three excitation schemes are compared and discussed.The results would be useful in guiding the selection of excitation methods and the optimization of imaging conditions.

Vibration analysis of atomic force microscope cantilevers in contact resonance force microscopy using Timoshenko beam model

Timoshenko beam model is employed to investigate the vibration of atomic force mi- croscope （AFM） cantilevers in contact resonance force microscopy （CRFM）. Characteristic equation with both vertical and lateral tip-sample contact is derived. The contact resonance frequencies （CRFs） obtained by the Timoshenko model are compared with those by the Euler-Bernoulli model. A method is proposed to correct the wave number obtained by the Euler-Bernoulli model. The forced vibration is compared between the two models. Results reveal that the Timoshenko model is superior to the Euler-Bernoulli model in predicting the vibration characteristics for cantilevers＇ higher eigenmodes.