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Due to the influence of environmental interference and too fast speed, there are some problems in ski motion capture, such as inaccurate motion capture, motion delay, and motion loss, resulting in the inconsistency between the actual motion of later athletes and the motion of virtual characters. To solve the above problems, a real-time skiing motion capture method of snowboarders based on a 3D vision sensor is proposed. This method combines the Time of Fight (TOF) camera and high-speed vision sensor to form a motion acquisition system. The collected motion images are fused to form a complete motion image, and the pose is solved. The pose data is bound with the constructed virtual character model to drive the virtual model to synchronously complete the snowboarding motion and realize the real-time capture of skiing motion. The results show that the motion accuracy of the system is as high as 98.6%, which improves the capture effect, and the motion matching proportion is better and more practical. It is also excellent in the investigation of motion delay and motion loss.

Snowboarding is a kind of sport that takes snowboarding as a tool, swivels and glides rapidly on the specified slope line, and completes all kinds of difficult actions in the air. Because the sport is in the state of high-speed movement, it is difficult to direct guidance during the sport, which is not conducive to athletes to find problems and correct them, so it is necessary to track the target track of snowboarding. The target tracking algorithm is the main solution to this task, but there are many problems in the existing target tracking algorithm that have not been solved, especially the target tracking accuracy in complex scenes is insufficient. Therefore, based on the advantages of the mean shift algorithm and Kalman algorithm, this paper proposes a better tracking algorithm for snowboard moving targets. In the method designed in this paper, in order to solve the problem, a multi-algorithm fusion target tracking algorithm is proposed. Firstly, the SIFT feature algorithm is used for rough matching to determine the fuzzy position of the target. Then, the good performance of the mean shift algorithm is used to further match the target position and determine the exact position of the target. Finally, the Kalman filtering algorithm is used to further improve the target tracking algorithm to solve the template trajectory prediction under occlusion and achieve the target trajectory tracking algorithm design of snowboarding.

Yan Hu, Jingjing Li, Haifeng Luo, Wenli Song, Jiyuan Yang Department of Oncology, The First People’s Hospital of Jingzhou, Jingzhou, Hubei, 434000, People’s Republic of ChinaCorrespondence: Yan HuDepartment of Oncology, The First People’s Hospital of Jingzhou, Jingzhou, Hubei, 434000, People’s Republic of ChinaTel +86 716 8513623Email yanhu_dr@outlook.comBackground: Gastric cancer (GC) is among the most prevalent cancers globally. As such, there is a need to explore the mechanism underlying its pathogenesis and identify potential biomarkers for its prognosis.Methods: ONCOMINE was used to screen differentially expressed genes between GC and normal gastric mucosa. GEPIA was used to analyze the expression and correlation of candidate genes in tumor node metastasis (TNM) stage. STRING was used to construct protein interaction network. Kaplan–Meier plotter was used to analyze survival. TIMER was used to evaluate the association between candidate genes and immune cell infiltration.Results: From the ONCOMINE database, we found COL1A1, COL1A2, COL6A3, and SULF1 genes were significantly upregulated in stomach adenocarcinomas. There was a considerable correlation between the expression of COL1A1 (p = 0.029), COL1A2 (p = 0.004), COL6A3 (p = 0.002), SULF1 (p = 0.001), and the TNM stage. COL1A1 was positively correlated with ERBB2 (R = − 0.037, p = 0.46), while the other three genes were negatively correlated with ERBB2 (p > 0.05). The Kaplan–Meier plotter showed that low transcriptional levels of COL1A1 (p = 0.0020), COL1A2 (p = 0.0015), COL6A3 (p = 0.0015), and SULF1 (p = 0.0016) in gastric cancer patients were remarkably related to longer overall survival. In addition, there was a close relationship between chemokine expression and infiltration of the six immune cell types: B cells, macrophages, CD4+ T cells, CD8+ T cells, dendritic cells, and neutrophils, implying that the genes acted as indicators of both prognosis and immune status.Conclusion: Our findings implicate COL1A1, COL1A2, COL6A3, and SULF1 as candidate biomarkers for the prognosis of gastric cancer.Keywords: gastric cancer, biomarker, prognosis

Four coal samples of different ranks are selected to perform the adsorption measurement of high-pressure methane (CH(4)). The highest equilibrium pressure of the measurement exceeds 20 MPa. Combined with the measuring results and theoretical analyses, the reasons for the peak or the maximum adsorption capacity appearing in the excess adsorption isotherms are explained. The rules of the peak occurrence are summarized. And then, based on the features of coal pore structure, the adsorption features of high-pressure gas, the microcosmic interaction relationship of coal surface and CH(4) molecule, and the coalbed methane reservoir conditions, three theoretical assumptions on the coal adsorption high-pressure CH(4) are suggested. Thereafter, on the basis of these theoretical assumptions, the Ono-Kondo lattice model is processed for simplification and deformation. Subsequently, the equations modeling the excess adsorption isotherm of high-pressure CH(4) adsorption on coal are obtained. Through the verification on the measurement data, the fitting results indicate that it is feasible to use the Ono-Kondo lattice mode to model the excess adsorption isotherm of high-pressure CH(4) adsorption on coal.

Abstract Pilot-CO2 flooding in Jilin Oil Field has been got a first base in recent years in order to ensure CO2 coming from the development of volcanic gas reserves is available for utilizing. The project has come into extended testing stage and will get into a Carbon Industry Chain(CIC) production stage of integral development of volcanic gas reserves and CO2 flooding. CIC will become a huge oil & gas development project, which composing volcanic gas reserves development, CO2 flooding and CO2 sequestration. The Project has its own characteristics of long cycle construction, superior technical difficulty and high investment risk. Therefore, evaluating micro & macro-benefit of CIC becomes a crucial element task for management promoting, successful financing and governmental support. Maximizing ROI (Return on Investment) of CIC has become a core objective and theory of hierarchy analysis has been utilized in order to set up a CIC comprehensive evaluation index system which contains society, economy, environment, resource, science & technology and management. Analytical method of hierarchy has been used for establishing CIC evaluation model proceed to the evaluation of the multi-effect of the CIC based on SAS, MAPLAB etc. The study achieves a prophase comprehensive evaluation of CIC in Jilin Oil Field. The results indicate that the CIC has a certain economic benefit and preferable macro performance. It may promote the development & production of CIC, enhance the utilizing of oil & gas resource and carbon emission reduction especially under high oil price condition. Introduction From the year of 2008, CNPC has begun pilot test for CO2 enhanced oil recovery (EOR) in Jilin Oil Field. The main purpose has three points:realization of CO2 emission reduction. According to China's Policies and Actions for Addressing Climate Change(2008), China's climate warming trend is basically consistent with the general trend globally. In the recent 50 years, the spatial distribution of precipitation has changed obviously in China, the sea level of coastal areas has risen by 90mm. As to ease the further aggravation of climate warming in future, we must find out the practical and effective methods to reduce emission of CO2 into the atmosphere during production and consumption of fossil fuels. Existing research and application results at home and abroad have shown that hydrocarbon reservoirs are well closed underground gas storages, which can realize long-term CO2 sequestration.Improvement of crude oil recovery. Lots of successful experience from indoor and field tests of CO2 flooding in America, Canada and Britain has shown that it has broad application prospects to CO2 flooding technology in raising the use rate of low permeability oil reservoir, crude oil recovery, recovery of thickened oil reservoir, natural gas recovery and coal bed methane (CBM) recovery, etc. In these years, pretty much of the developed oil fields have come into the middle and late stages of water flooding, of which the average recovery was only 32% and more than 70% of new producing reserves were low permeability reserves, therefore, development technologies having advantages over water flooding are urgently needed.Promotion of development of volcanic gas reservoirs. They have been successively discovered to CO2-containing natural gas reservoirs and high CO2-containing gas reservoir reserves at a large number since 2002 in Songliao Basin, to ensure safe and effective development of volcanic gas reservoirs, these works must be done well including separation, treatment, transportation, use and sequestration of CO2 gas in production gas, in order that natural gas resources can be developed and domestic natural gas supply and energy security can be improved. Development of volcanic gas reservoirs as well as CO2 flooding and sequestration in Songliao Basin has formed a complementary CO2 industry chain, microcosmically, the industry chain not only promotes the development and production of unconventional natural gas reserves, but also promotes the technical progress in EOR, as well as enables R & D on CO2 geological sequestration technology; Macroscopically, it promotes the development of CO2 emission reduction and environmental protection technologies in China, and improves the energy security of domestic natural gas and oil.

Field contamination with pesticide mixtures of organophosphates (OPs) and organochlorines (OCs) is becoming global issues to be solved urgently. The strategy of utilizing engineered microorganisms that have an ability to simultaneously degrade OPs and OCs has increasingly received great interest. In this work, an OP degradation gene (mpd) and an OC degradation gene (linA) were simultaneously introduced into Escherichia coli by using two compatible plasmids, resulting in strains with both OP degradation and OC degradation capabilities. To overcome the potential substrate uptake limitation, MPH was displayed on the cell surface of Escherichia coli using the N- and C-terminal domains of ice nucleation protein (INPNC) as an anchoring motif. The surface localization of INPNC-MPH was verified by cell fractionation, Western blot, proteinase accessibility, and immunofluorescence microscopy. Furthermore, both LinA and green fluorescent protein (GFP) were functionally co-expressed in the MPH-displaying Escherichia coli. The engineered Escherichia coli degraded OPs as well as OCs rapidly, and it can be easily monitored by GFP fluorescence.

Non disponible / Not available; Cette étude porte sur la technologie du Lit Fluidisé Circulant appliquée à l'adsorption pour éliminer des Composés Organiques Volatils (toluène) dans un courant gazeux. Dans ce procédé, l'adsorbant (grains sphériques millimétriques de carbone microporeux) est transporté par un fort débit gazeux dans un tube vertical sans garnissage. Les transferts de matière et de chaleur sont très efficaces, et des débits importants peuvent être traités. Le travail présente la détermination de l'équilibre d'adsorption, la description de l'installation expérimentale et des résultats d'expériences, le développement d'un modèle original de l'opération, combinant un modèle d'écoulement couplé au transfert de matière, une étude paramétrique de ce modèle, et enfin des extensions de principe du procédé à des opérations étagées, à des cycles à variation de pression (PSA) ou de température (TSA).

Non disponible / Not available, Cette étude porte sur la technologie du Lit Fluidisé Circulant appliquée à l'adsorption pour éliminer des Composés Organiques Volatils (toluène) dans un courant gazeux. Dans ce procédé, l'adsorbant (grains sphériques millimétriques de carbone microporeux) est transporté par un fort débit gazeux dans un tube vertical sans garnissage. Les transferts de matière et de chaleur sont très efficaces, et des débits importants peuvent être traités. Le travail présente la détermination de l'équilibre d'adsorption, la description de l'installation expérimentale et des résultats d'expériences, le développement d'un modèle original de l'opération, combinant un modèle d'écoulement couplé au transfert de matière, une étude paramétrique de ce modèle, et enfin des extensions de principe du procédé à des opérations étagées, à des cycles à variation de pression (PSA) ou de température (TSA).

Pyrolysis of Chinese Huadian oil shale using carrier gases N-2 and CO2 was investigated by TG-FTIR method. The results show that carrier gas does not change weight loss or mechanism of pyrolysis, while decomposition of carbonates in the mineral part can be retarded by CO2. This regulation was found to be in accordance with kinetic analytical results. The pyrolysis of oil shale in a fixed bed from room temperature to 500 degrees C at heating rate of 10-20 C/min was also investigated. Hydrocarbons are the main components in shale oil, and hydrocarbon derivatives concentrate in the number of C-16-C-23 by CO2 retorting, the chains being longer than those of hydrocarbons obtained by N-2 retorting.