火龙罐在气滞血瘀型项痹病护理中的应用价值研究

项痹病是一种常见颈部疾病,其发病机制与气滞血瘀密切相关。探究对气滞血瘀型项痹病患者,采用火龙罐干预的应用价值。方法 选择2023.1~2023.10符合标准的患者76例,分为对照/观察两个小组,各38例,对比效果。结果 观察组干预后疼痛更轻、生活自理能力及生活质量均更好(P<0.05)。结论 火龙罐对气滞血瘀型项痹病患者应用效果显著,值得推广。

火龙罐在气滞血瘀型项痹病护理中的应用价值及有效率分析

研究火龙罐在气滞血瘀型项痹病护理中的应用价值及有效率。方法 抽选于2023年9月~2024年3月就诊于本院的气滞血瘀型项痹病患者共120例参与护理实验,以随机数据法均分,其中对照组60例行常规护理联合中医针灸,观察组60例则增加火龙罐,对比组间疼痛(VAS)评分、NorthwickPark颈痛量表(NPQ)评分、生活质量(SF-36)评分与满意度。结果 护理前两组患者各项指标差异不明显,P>0.05;护理后相较于对照组,观察组患者的NPQ评分、VAS评分更低,SF-36评分给予护理满意度更高,P<0.05。结论 火龙罐辅助治疗气滞血瘀型项痹病患者可达到更加理想的治疗与康复效果,极大提升患者治疗感受,获得更多患者认可,积极改善其疼痛程度、颈痛情况,提高生活质量,值得临床积极借鉴、推广。

企业工会主席应练好五项“气”功

今年4月28日,习近平总书记等中央领导到全总机关与全国劳模代表座谈时强调:工会工作要顺应时代要求、适应社会变化,善于创造科学有效的工作方法,把竭诚为职工群众服务作为工会一切工作的出发点和落脚点,全心全意为广大职工群众服务,让职工群众真正感受到工会是"职工之家",工会干部是最可信赖的"娘家人"。习总书记的讲话进一步指明了当前和今后一个时期工运事业发展的前进方向和大政方针。

压水堆核电站检修过程中气载放射性源项及防护

介绍了压水堆核电站检修过程中的气载放射性源项:放射性气溶胶、放射性碘和放射性惰性气体,对3种源项的特点及其辐射防护分别进行了说明。

W8油气田地质建模研究

W8油气田合油层系位于下第三系阜宁组二段和一段（E1f2，E1f1）。在开发过程中，发现气体影响较大，有油井7口不能正常生产，经研究认为W8断块是层状气顶稠油油气藏。综合应用静态油藏描述成果建立油气藏三维地质模型，充分展示W8油气藏的空间分布，落实油气藏规模及分布范围，为开发方案调整提供了地质依据。

阿拉斯加普鲁德霍湾油田气顶注水的四维微重力监测

在阿拉斯加普鲁德霍湾油田实施了气顶注水地表微重力监测。这种监测技术对气顶注水动态的监测而言是必不可少的。钻大量的监测井来监测水的运移将是不经济的。矿场监测表明，与注入水置换气体有关的密度变化容易通过高分辨率地面重力测量而检测出来。

基于线性子链法的压水堆裂变产物源项一体化计算方法

核电厂设计基准源项计算可为核电厂安全评审提供依据,同时也是辐射屏蔽计算的基础。基于压水堆堆芯、一回路和气载源项的研究基础,类比衰变常数引入了迁移常数和核反应常数的概念,进而总结了一体化计算上述源项中裂变产物源项的源项方程。针对源项方程变系数、大型、稀疏和刚性的特点,在时间离散近似的基础上,基于线性子链算法编写程序求解了上述方程。通过与典型压水堆工程文件对比,证明了程序的正确性和必要性。

TVD SCHEME WITH CHEMICAL REACTION FLOW AND ITS APPLICATION IN COMBUSTION GAS JETTING FLOW

By conjugating features of combustion gas jetting flows of the solid-rocket and using mathematical methods, a numerical scheme is systematically derived based on Harten′s standard TVD scheme, which fits for the flow with high temperature, pressure and velocity. The rational calculation formula of pressure partial derivation is also given out. By using the chemical kinetics knowledge, problems of multi-component and finite rate chemical reaction contained in combustion gas of the rocket flow field are discussed. The method for solving the mass source term of chemical reaction is clarified. Taking 9 reaction equations with 12 components as an example and utilizing the established calculation program, the free jetting flow field of the rocket is simulated. Numerical results show the correctness of the numerical scheme.

Use of Spatial Technologies to Study the Winds＇ Directions in Rub＇ AI-Khali Desert, Saudi Arabia

Studying environmental phenomenon in Rub＇ Al-Khali （Arabic name of＂Empty Quarter＂）, as one of the largest deserts in the world, requires adopting some advanced spatial technologies in conjunction with the data recorded in the field in order to device better understanding. The paper utilizes the technologies of GIS （geographical information systems） and RS （remote sensing） in order to study large amount of weather data recorded in the field from different sources related to oil and gas industry in Rub＇ AI-Khali desert. The main objective is to identify the wind directions and its movement in Kidan areas and the areas south and east of Shaybah in Rub＇ Al-Khali desert. The study used different sources of data mainly recorded by the seismic campaigns＇ base camps and the drilling rig camps or the civil works camps. Wind Roses were created for all metrological weather stations in the study area. Also, the study tried to analyze the dune types using satellite imageries and identify the relation of its shapes to the wind direction. The final aim of the result of this study is to help in planning best locations to build facilities for new major oil and gas project.

Novel consistency control strategy for jet dispensing

A new consistency control method for jet dispensing is proposed. First, the working parameters, namely, viscosity, supply pressure and supply time, are experimentally investigated. Then, the glue viscosity is approximated by a polynomial model using the least square method. Based on this model and temperatme control implemented using the Dahlin principle, the viscosity of the glue can be maintained at a constant value. Then, the viscosity model of the glue is applied to deriving the droplet mass as the nominal model of the temperature controller. The robustness of the temperature controller is analyzed by applying the small gain theory. The glue supply pressure controller is designed using the consistency control strategy, and the robustness is analyzed. Finall）, simulations and experiments are conducted using a jet dispensing control system. The results show that the proposed control strategy can significantly improve the droplet consistency.

Opportunities and Challenges of Sino-Australia LNG Cooperation

Australia＇s liquefied natural gas industry~ has been growing rapidly in recent years. As China＇ s natural gas production drops and its demand for clean energy sources, such as natural gas, grows, LNG, as a complement to piped natural gas, will be an important part of China＇s strategy of ensuring its natural gas consumption. Aware of this market opportunity , China＇s three big national oil companies, CNPC, CNOOC and Sinopec have all inw＇sted in Australia＇s LNG sector. Chinese oil companies are facing multiple challenges in their Australian LNG projects, including strict environmental taws and high labor cost. These companies should strengthen communication with local government to create a good investment environment for LNG projects.

A Three-dimensional Heterogeneous Mass Transfer Model for the Absorption of Gas into Multiphase System

A three-dimensional heterogeneous mass transfer model was proposed to investigate the enhancement of dispersed particles on gas absorption. The strategy to calculate local and overall enhancement factors is proposed. Instead of a global grid, the composite overlapping grid is adopted, which simplifies the setup and solution of the three-dimensional model equations. It is found that dispersed particle hold-up, particle size, liquid-solid partition coefficient of transported component, characteristic contact time, and the shortest distance between particles and gas-liquid interface have major influence on absorption enhancement factor. The particle-particle interaction on gas absorption and the lateral diffusion of transported component in liquid film were studied with the multi-particle simulation. The proposed model predicted the experimental data from the literature reasonably well.

Effects of Insufficient Investment and Overproduction on Iran＇s Oil Production Trend

This paper, using multiple-Hubbert model, forecasts oil production trend of Iran with special focus on Iran＇s insufficient investment for developing recently discovered oilfields and overproduction from mature oilfields. This is mostly due to Iran＇s political and technical limitations to carry out oil and gas projects. The trend of Iran＇s oil production has been forecasted based on a multi-cycle modified Hubbert. Three different scenarios have been assumed. In the first scenario, it is assumed that Iran does not have any limitations to carry out oil and gas projects and develop its oilfields. International sanctions and lack of foreign investment have been taken into account in the second scenario. Overproduction from currently producing mature oilfields and its effect on production trend is investigated in the third scenario. The most important parameter to forecast oil production trend is URR （ultimate recoverable resource）. URR of Iran has been estimated by parabolic fractal curve. Here, based on the plotted parabolic fractal curve for the oil fields, amount of URR of Iran has been calculated that is around 200 Gb. First scenario has two peaks while the second and third scenarios have three peaks. All of the scenarios have forecasted Iran＇s first peak in 1975 at annual production rate of 2 Gb/Year. Based on first scenario, Iran＇s second peak will occur in 2029 at 2.334 Gb/Year. Second scenario has forecasted Iran＇s second and third peaks in 2011 at 1.575 Gb/Year and in 2064 at 2.205 Gb/Year respectively, and third scenario＇s peaks have been estimated to occur in 2011 at 1.573 Gb/Year and in 2061 at 2.030 Gb/Year.

The Role of Hydropower in Climate Change Mitigation and Adaptation： A Review

Hydropower is a clean,renewable,and environmentally friendly source of energy.It produces 3930(TW·h)·a–1,and yields 16% of the world's generated electricity and about 78% of renewable electricity generation(in 2015).Hydropower and climate change show a double relationship.On the one hand,as an important renewable energy resource,hydropower contributes significantly to the avoidance of greenhouse gas(GHG) emissions and to the mitigation of global warming.On the other hand,climate change is likely to alter river discharge,impacting water availability and hydropower generation.Hydropower contributes significantly to the reduction of GHG emissions and to energy supply security.Compared with conventional coal power plants,hydropower prevents the emission of about 3 GT CO2 per year,which represents about 9% of global annual CO2 emissions.Hydropower projects may also have an enabling role beyond the electricity sector,as a financing instrument for multipurpose reservoirs and as an adaptive measure regarding the impacts of climate change on water resources,because regulated basins with large reservoir capacities are more resilient to water resource changes,less vulnerable to climate change,and act as a storage buffer against climate change.At the global level,the overall impact of climate change on existing hydropower generation may be expected to be small,or even slightly positive.However,there is the possibility of substantial variations across regions and even within countries.In conclusion,the general verdict on hydropower is that it is a cheap and mature technology that contributes significantly to climate change mitigation,and could play an important role in the climate change adaptation of water resource availability.However,careful attention is necessary to mitigate the substantial environmental and social costs.Roughly more than a terawatt of capacity could be added in upcoming decades.

Electricity Pricing for Natural Gas CHP Projects The Higher, the Better?

Regarding the state's policy that gives a higher on-grid electricity price to natural gas CHP (combined heat and power) projects, this paper studies the effect of it on the operation of those projects by theoretical analysis and a case study. It concludes that on-grid electricity price on the high side, compared to heat price, will lead power plants to produce more electricity but less heat, thus causing decrease of the plants' thermal eff iciency and harm to energy saving of the whole society.

Determination of Strouhal Numbers at High Reynolds Numbers

Leeward of natural elevations, like mountains and hills, the air flow becomes turbulent and often times damaging and hazardous to aviation and downwind populations. There is currently a trend for massive construction projects, the result of which are megastructures that behave similarly to these natural elevations and create analogous turbulence conditions. Examples five mega projects were analyzed, and it was estimated that the Reynolds number variation in these buildings, is from 6.10g and 7.109, for winds between 10 m/s and 50 m/s. In this work, the authors present a first numerical approach to this phenomenon by calculating the Strouhal numbers induced by winds blowing against large-volume bodies, in the range of high Reynolds numbers. For this study, satellite images depicting von K^irm^n cloud streets leeward of isolated islands were used. The methodology employed was based on a satellite image where streets watch von K^rnfin vortex, from NOAA-ARL （National Oceanic and Atmospheric Administration-Air Resource Laboratory） prognosis was obtained for a grid point near the island, then determined the inversion layer and meteorological data （wind, temperature and pressure）, was measured from the satellite image the distances separating the vortices to calculate the period, the Reynolds number and Strouhal. The studied results of the cases are displayed graphically, where it is possible to observe a data dispersion as well as a rising trend of the Strouhal number as the Reynolds number increases.

Study on the Concept of Per Capita Cumulative Emissions and Allocation Options

Global long-term emission reduction targets need well defined options for equitable allocation of greenhouse gas emissions. Scholars from developing countries put forward the concept of equitable per capita cumulative emission rights. There are four possible operational definitions resulting from this concept. These potential options for allocation of emission rights are expressed with mathematical equations. Through simple simulation, this paper reveals the advantages, disadvantages and characteristics of each option.

A Pilot-scale Demonstration of Reverse Osmosis Unit for Treatment of Coal-bed Methane Co-produced Water and Its Modeling

This study presents the first demonstration project in China for treatment of coal-bed methane(CBM) co-produced water and recycling.The work aims to provide a research and innovation base for solving the pollution problem of CBM extraction water.The reverse osmosis(RO) unit is applied to the treatment of CBM co-produced water.The results indicate that system operation is stable,the removal efficiency of the total dissolved solids(TDS) is as high as 97.98%,and Fe,Mn,and F-are almost completely removed.There is no suspended solids(SS) detected in the treated water.Furthermore,a model for the RO membrane separation process is developed to describe the quantitative relationship between key physical quantities-membrane length,flow velocity,salt concentration,driving pressure and water recovery rate,and the water recovery restriction equation based on mass balance is developed.This model provides a theoretical support for the RO system design and optimization.The TDS in the CBM co-produced water are removed to meet the "drinking water standards" and "groundwater quality standards" of China and can be used as drinking water,irrigation water,and livestock watering.In addition,the cost for treatment of CBM co-produced water is assessed,and the RO technology is an efficient and cost-effective treatment method to remove pollutants.

CDM Project Activities in China's Iron and Steel Industry:Current Status,Barriers and Development Strategies

China is now facing huge pressure from both the domestic concern of energy security and the global community's call for emission reduction commitment.As one of the major energy consumers and greenhouse gas emitters,China's iron and steel industry has a huge clean development mechanism(CDM) potential.This article both quantitatively and qualitatively analyzes the current status of CDM project activities in the iron and steel industry in China,including characteristics of approved project types,applicable methodologies,and potential technology fields.From the perspective of project implementation,the article summarizes development barriers such as high investment risk,difficulty in project identification,strict requirements on PPDs,long registration waiting time,and etc.Policy suggestions are also put forwarded to help better promote the development of CDM projects in the iron and steel industry.

Impacts of Sloping Land Conversion Program on the vegetation in loess hilly and gully area of northern Shaanxi

Aiming at alleviating the serious soil erosion, the Chinese government initiated the Sloping Land Conversion Program （SLCP） in 1999. Now; after 8 years of project implementation, the ecological recovery effects of the SLCP have become the hot issue of academic circle. This paper; raking the loess hill and gully area of northern Shaanxi as an example, presents a methodology for assessing the vegetation restoration effect of SLCP with normalized difference vegetation index （NDVI）. The key components include calculation of the Growing Season NDVI （GSNDVI）, and estimation of the NVDI change induced by climate and SLCP, respectively. Based on the method, the NDVI change between 2000 and 2006 was obtained using the GSNDVI that excluded the noise from snow and ice. After the part of total NDVI change caused to： climate variation was estimated using empiric formulae, we obtained the part induced by human factors, i.e. the SLCP The human induced part of ND VI change was considered as an approximation indicating the effect of the SLCP on the vegetation. Finally, we analyzed the ND VI change characters of the whole study area, different slope lands and different land use types by spatial statistics method. Results show that the vegetation condition is significantly improved by the SLCP, particularly land types that directly involved in the SLCP, such as steeply slope farmlands, degraded grasslands, etc.