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An efficient synthesis of benzofuran derivatives under conventional/non-conventional method 认领 引用 被引量：1
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作者 Suryakant B.Sapkal Kiran F.Shelke +1 位作者 Bapurao B.Shingate Murlidhar S.Shingare 《Chinese Chemical Letters》 SCIE CAS 2010年第12期1439-1442,共4页
l-Methyl-3-ethyl imidazolium bromide[meim]Br/basic alumina（Al2O3） has been found to promote the cyclocondensation of chloroacetone/chloroethyl acetate with salicylaldehydes under conventional as well as microwave ir... l-Methyl-3-ethyl imidazolium bromide[meim]Br/basic alumina（Al2O3） has been found to promote the cyclocondensation of chloroacetone/chloroethyl acetate with salicylaldehydes under conventional as well as microwave irradiation to yield benzofuran derivatives. 展开更多
关键词 [meim]Br/Al2O3 Benzofuran Cyclocondensation Conventional Non-conventional methods
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Advancing hemostasis:A meta-analysis of novel vs conventional endoscopic therapies for non variceal upper gastrointestinal bleeding 认领 引用
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作者 Shivangini Duggal Ishana Kalra +1 位作者 Keisha Kalra Vicky Bhagat 《World Journal of Gastrointestinal Endoscopy》 2025年第6期107-119,共13页
BACKGROUND Non variceal upper gastrointestinal bleeding(NVUGIB)is a life-threatening condition requiring prompt and effective hemostasis.Various endoscopic inter-ventions,including novel hemostatic powders(HP),over-th... BACKGROUND Non variceal upper gastrointestinal bleeding(NVUGIB)is a life-threatening condition requiring prompt and effective hemostasis.Various endoscopic inter-ventions,including novel hemostatic powders(HP),over-the-scope clips(OTSC),and traditional approaches,have been employed to manage upper gastroin-testinal bleeding(UGIB).Despite advancements,comparative efficacy and safety of these modalities remain uncertain.AIM To evaluate the efficacy and safety of novel hemostatic interventions compared to conventional endoscopic techniques for managing UGIB.METHODS Cochrane,MEDLINE,PubMed and Scopus libraries were searched for rando-mized controlled trials(RCTs)published up to October 2024.Only RCTs compa-ring novel interventions,such as HP or OTSC,with conventional endoscopic treatments computed tomography(CT)were included.The primary outcome was the 30-day rebleeding rate.Secondary outcomes included initial hemostasis,short-term rebleeding rates,need for salvage therapy(surgical/angiographic),30-day all-cause mortality,and bleeding-related mortality.We performed pairwise and network meta-analyses for all treatments.RESULTS Seventeen studies were included in this analysis.Regarding the 30-day rebleeding rate,OTSC and HP showed superior efficacy compared with CT[OTSC vs CT:Relative risk(RR):0.47,95%confidence interval(CI):0.33-0.65;HP vs CT:RR:0.73,95%CI:0.45-1.13],while OTSC and HP had comparable efficacy(RR:0.56,95%CI:0.30-1.05).OTSC ranked the highest in the network ranking estimate for this outcome.For the secondary outcomes,OTSC demonstrated superior efficacy for the short-term rebleeding rate(OTSC vs CT:RR:0.35,95%CI:0.14-0.74;HP vs CT:RR:0.62,95%CI:0.28-1.35;OTSC vs HP:RR:0.59,95%CI:0.17-1.67).Regarding the initial hemostasis rate,OTSC was slightly more effective than CT(OTSC vs CT:RR:1.20,95%CI:1.06-1.57)and comparable to HP(OTSC vs HP:RR:1.08,95%CI:0.89-1.40).There were no significant differences among treatments for all-cause mortality,bleeding-related mortality,or the necessity of surgical or angiographic salvage therapy.OTSC consistently ranked highest across most outcomes in the network ranking estimate. 展开更多
关键词 Hemostatic methods Non-variceal upper gastrointestinal bleeding Over-the-scope-clips Conventional methods Hemostatic spray
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A numerical method for solving the boundary layer equations of laminar natural convention about a vertical plate 认领 引用 被引量：8
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作者 Liancun Zheng Chen Liang Xinxin Zhang 《Journal of University of Science and Technology Beijing》 2007年第1期33-35,共3页
An improved shooting method was presented for solving the natural convention boundary layer equations, with a coupling of the velocity field to the temperature field. The numerical results are consistent with the appr... An improved shooting method was presented for solving the natural convention boundary layer equations, with a coupling of the velocity field to the temperature field. The numerical results are consistent with the approximate solution obtained by former researchers. 展开更多
关键词 shooting method Runge-Kutta method natural convention
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Large-scale discovery of non-conventional peptides in grape(Vitis vinifera L.)through peptidogenomics 认领 引用 被引量：4
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作者 Mao-Song Pei Hai-Nan Liu +2 位作者 Tong-Lu Wei Yi-He Yu Da-Long Guo 《Horticulture Research》 SCIE CSCD 2022年第1期1414-1424,共11页
Non-conventional peptides(NCPs),which are peptides derived from previously unannotated coding sequences,play important biological roles in plants.In this study,we used peptidogenomic methods that integrated mass spect... Non-conventional peptides(NCPs),which are peptides derived from previously unannotated coding sequences,play important biological roles in plants.In this study,we used peptidogenomic methods that integrated mass spectrometry(MS)peptidomics and a six-frame translation database to extensively identify NCPs in grape.In total,188 and 2021 non-redundant peptides from the Arabidopsis thaliana and Vitis vinifera L.protein database at Ensembl/URGI and an individualized peptidogenomic database were identified.Unlike conventional peptides,these NCPs derived mainly from intergenic,intronic,upstream ORF,5'UTR,3'UTR,and downstream ORF regions.These results show that unannotated regions are translated more broadly than we thought.We also found that most NCPs were derived from regions related to phenotypic variations,LTR retrotransposons,and domestication selection,indicating that the NCPs have an important function in complex biological processes.We also found that the NCPs were developmentally specific and had transient and specific functions in grape berry development.In summary,our study is the first to extensively identify NCPs in grape.It demonstrated that there was a large amount of translation in the genome.These results lay a foundation for studying the functions of NCPs and also provide a reference for the discovery of new functional genes in grape. 展开更多
关键词 grape mass spectrometry ms peptidomics peptidogenomic methods vitis vinifera non conventional peptides arabidopsis thaliana individualized peptidogenomic database peptidogenomics
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A Fixed-Point Fast Sweeping WENO Method with Inverse Lax-Wendroff Boundary Treatment for Steady State of Hyperbolic Conservation Laws 认领 引用 被引量：4
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作者 Liang Li Jun Zhu +1 位作者 Chi-Wang Shu Yong-Tao Zhang 《Communications on Applied Mathematics and Computation》 2023年第1期403-427,共25页
Fixed-point fast sweeping WENO methods are a class of efficient high-order numerical methods to solve steady-state solutions of hyperbolic partial differential equations(PDEs).The Gauss-Seidel iterations and alternati... Fixed-point fast sweeping WENO methods are a class of efficient high-order numerical methods to solve steady-state solutions of hyperbolic partial differential equations(PDEs).The Gauss-Seidel iterations and alternating sweeping strategy are used to cover characteristics of hyperbolic PDEs in each sweeping order to achieve fast convergence rate to steady-state solutions.A nice property of fixed-point fast sweeping WENO methods which distinguishes them from other fast sweeping methods is that they are explicit and do not require inverse operation of nonlinear local systems.Hence,they are easy to be applied to a general hyperbolic system.To deal with the difficulties associated with numerical boundary treatment when high-order finite difference methods on a Cartesian mesh are used to solve hyperbolic PDEs on complex domains,inverse Lax-Wendroff(ILW)procedures were developed as a very effective approach in the literature.In this paper,we combine a fifthorder fixed-point fast sweeping WENO method with an ILW procedure to solve steadystate solution of hyperbolic conservation laws on complex computing regions.Numerical experiments are performed to test the method in solving various problems including the cases with the physical boundary not aligned with the grids.Numerical results show highorder accuracy and good performance of the method.Furthermore,the method is compared with the popular third-order total variation diminishing Runge-Kutta(TVD-RK3)time-marching method for steady-state computations.Numerical examples show that for most of examples,the fixed-point fast sweeping method saves more than half CPU time costs than TVD-RK3 to converge to steady-state solutions. 展开更多
关键词 Fixed-point fast sweeping methods Multi-resolution WENO schemes Steady state ILW procedure Convergence
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Solving a Class of Brouwer Fixed-point Problems via a Modified Aggregate Constraint Homotopy Method 认领 引用
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作者 苏孟龙 吕显瑞 《Northeastern Mathematical Journal》 2007年第5期377-385,共9页
In this paper, we provide an aggregate function homotopy interior point method to solve a class of Brouwer fixed-point problems. Compared with the homotopy method （proposed by Yu and Lin, Appl. Math. Comput., 74（199... In this paper, we provide an aggregate function homotopy interior point method to solve a class of Brouwer fixed-point problems. Compared with the homotopy method （proposed by Yu and Lin, Appl. Math. Comput., 74（1996）, 65）, the main adavantages of this method are as foUows： on the one hand, it can solve the Brouwer fixed-point problems in a broader class of nonconvex subsets Ω in R^n （in this paper, we let Ω={x∈ R^n ： gi（x） ≤0, i= 1,... , m}）; on the other hand, it can also deal with the subsets Ω with larger amount of constraints more effectively. 展开更多
关键词 homotopy method Brouwer fixed-point problem nonconvex subset
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Modified Homotopy Method for a Class of Brouwer Fixed-point Problems 认领 引用
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作者 苏孟龙 吕显瑞 《Northeastern Mathematical Journal》 2007年第1期35-42,共8页
In this paper, we modify the homotopy method （proposed by Yu and Lin, Appl. Math. Comput., 74（1996）, 65） and hence make the modified method be able to solve Brouwer fixed-point problems in a broader class of nonco... In this paper, we modify the homotopy method （proposed by Yu and Lin, Appl. Math. Comput., 74（1996）, 65） and hence make the modified method be able to solve Brouwer fixed-point problems in a broader class of nonconvex subsets in Rn. In addition, a simple example is given to show the effectiveness of the modified method. 展开更多
关键词 homotopy method Brouwer fixed-point problem nonconvex subset
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Conventional vs.modified pseudo-dynamic seismic analyses in the shallow strip footing bearing capacity problem 认领 引用 被引量：2
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作者 Ghazal Rezaie Soufi Reza Jamshidi Chenari Sina Javankhoshdel 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2021年第4期993-1006,共14页
The conventional pseudo-dynamic(CPD)and modified pseudo-dynamic(MPD)methods are invoked to obtain the seismic bearing capacity of strip foundations using the limit equilibrium method,with a two-wedge failure mechanism... The conventional pseudo-dynamic(CPD)and modified pseudo-dynamic(MPD)methods are invoked to obtain the seismic bearing capacity of strip foundations using the limit equilibrium method,with a two-wedge failure mechanism.A spectral version of the conventional pseudo-dynamic method(SPD)is also invoked by considering the ground motion amplification factor,to be a function of the non-dimensional frequencyλ/B and soil damping.Numeric analyses show that bearing capacity results obtained by the MPD and SPD methods are generally consistent.Both experience the same general reduction in bearing capacity with the increase ofλ/B,with successive ups and downs corresponding to soil′s natural frequencies.For 5<λ/B<10,SPD and MPD results fluctuated between falling above and below CPD results.Forλ/B<2.5,SPD and MPD results were consistent with attenuation of the shear wave,while for 10<λ/B,amplification was exhibited.Results obtained by the CPD method monotonically decrease,due to the fact that CPD fails to inherently consider site effects and damping,and instead and relies on a single factor to consider the ground motion amplification. 展开更多
关键词 bearing capacity modified pseudo-dynamic method conventional pseudo-dynamic method spectral analysis
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Review of Conventional and Innovative Technologies for Fire Retrofitting of Existing Buildings 认领 引用
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作者 Farshad Zahmatkesh Ali M. Memari 《Open Journal of Civil Engineering》 2017年第2期222-244,共23页
Fire effects can be one of the most harmful conditions that any building may experience throughout its service life. Developing practical protection methods and concepts against potential fire disasters in buildings h... Fire effects can be one of the most harmful conditions that any building may experience throughout its service life. Developing practical protection methods and concepts against potential fire disasters in buildings has been an important consideration in design of buildings in recent decades. Rapid developments in technology have heightened the demand for new and innovative fire protection systems in comparison with conventional and traditional methods. Such a need for new technologies is in particular of greater importance when it comes to existing buildings. Retrofitting an existing building for fire safety is a greater challenge compared with designing a new building using materials and components that have more desirable and superior fire rating to begin with. Furthermore, strategies to design a new building that includes state-of-the-art fire safety features are also different from solutions that may be more suitable for retrofitting an existing building. This paper presents a review of the literature concerning conventional and new or innovative retrofitting methods for fire safety of buildings. Advantages and disadvantages of different fire protection devices and methods as available and understood from the literature are mentioned. Study of fire safety systems shows that each has its drawbacks. Comparison of the results shows that disadvantages of a solitary system for retrofitting against fire can be improved by using a combination of several fire safety concepts or methods simultaneously. 展开更多
关键词 Fire Retrofitting Fire Safety Building Components Conventional Method Innovative Technology
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On the Global Well-Posedness of 2D tα-Type Boussinesq Equations 认领 引用
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作者 Fang WANG Fengqun TANG +1 位作者 Yao TAN Yanling LI 《Journal of Mathematical Research with Applications》 CSCD 2026年第3期364-388,共25页
We study a special type of Boussinesq equations{δtu+u・∇u+∇P=νtα△u+θe2,δt+u・∇θ=κ△θ,∇・u=0with time-dependent viscosity coefficients,termed as tα-type Boussinesq equations.By skillfully combinin... We study a special type of Boussinesq equations{δtu+u・∇u+∇P=νtα△u+θe2,δt+u・∇θ=κ△θ,∇・u=0with time-dependent viscosity coefficients,termed as tα-type Boussinesq equations.By skillfully combining Schauder's fixed-point theorem with integrating factor techniques under the parameter constraint 0<α<1,we establish the existence and uniqueness of classical solutions for H3initial data.The analytical framework developed in this work provides a self-contained methodology with independent theoretical value. 展开更多
关键词 Boussinesq equations Schauder fixed-point theorem integrating factor method
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全自动纤维溶解仪在纺织品定量分析中的应用 认领 引用
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作者 王海娟 丁伟 孙剑涛 《针织工业》 北大核心 2026年第5期84-88,共5页
为了探讨全自动纤维溶解仪在纺织品定量分析中应用的可行性,通过该仪器与常规检测法的对比试验及该仪器的验证试验,确定该仪器的适用范围及特点。结果表明:全自动纤维溶解仪安全环保,基本可替代人工实现了批量试验,降低了消耗,提高了检... 为了探讨全自动纤维溶解仪在纺织品定量分析中应用的可行性,通过该仪器与常规检测法的对比试验及该仪器的验证试验,确定该仪器的适用范围及特点。结果表明:全自动纤维溶解仪安全环保,基本可替代人工实现了批量试验,降低了消耗,提高了检测效率。该仪器能满足大部分混纺面料定量分析的需求,仪器稳定性好,试验结果准确,提高了精确度。但当试验条件、试验过程要求严格,使用的试剂具有易挥发性、易燃易爆性.或在面料厚实、颜色较深组织紧密、组织循环较大等情况时.不建议使用该仪器进行试验。 展开更多
关键词 全自动纤维溶解仪 纺织品 定量分析 常规检测法 对比试验 验证试验
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食品中片球菌属鉴定方法比较分析 认领 引用
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作者 明若阳 周巍 +4 位作者 刘雨蒙 王慧 李永艳 谢梦颖 张雅伦 《乳业科学与技术》 2026年第2期37-43,共7页
采用传统生理生化法、VITEK生化鉴定法、分析谱型指数(analytical profile index,API)生化鉴定系统、实时荧光定量聚合酶链式反应(polymerase chain reaction,PCR)法、基质辅助激光解吸电离飞行时间质谱(matrix-assisted laser desorpti... 采用传统生理生化法、VITEK生化鉴定法、分析谱型指数(analytical profile index,API)生化鉴定系统、实时荧光定量聚合酶链式反应(polymerase chain reaction,PCR)法、基质辅助激光解吸电离飞行时间质谱(matrix-assisted laser desorption ionization-time of flight mass spectrometry,MALDI-TOF MS)法对食品中片球菌属进行鉴定。结果表明,传统生理生化法结果最准确,但耗时长、工作量大;VITEK生化鉴定法因数据库规定乳酸片球菌苦杏仁苷反应为阴性,而实际部分菌株呈阳性,导致结果不稳定;API生化鉴定系统培养24 h结果准确,延长培养至48 h则出现偏差;实时荧光定量PCR法耗时短、结果准确,适合推广;MALDI-TOF MS法耗时最短,但设备要求高,难以在基层机构普及。综上,传统生理生化法、实时荧光定量PCR法和MALDI-TOF MS法均可作为食品中片球菌属鉴定的标准方法。本研究结果可为相关国家标准制定提供技术依据。 展开更多
关键词 片球菌属 传统生理生化法 VITEK生化鉴定法 分析谱型指数生化鉴定系统 实时荧光定量聚合酶链式反应法 基质辅助激光解吸电离飞行时间质谱
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Evaluation of natural gas hydrate resources in the South China Sea using a new genetic analogy method 认领 引用 被引量：6
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作者 Xiao-Han Liu Tao Hu +5 位作者 Xiong-Qi Pang Zhi Xu Tong Wang Xing-Wen Zhang En-Ze Wang Zhuo-Ya Wu 《Petroleum Science》 SCIE CAS CSCD 2022年第1期48-57,共10页
Natural gas hydrate(NGH)has attracted much attention as a new alternative energy globally.However,evaluations of global NGH resources in the past few decades have casted a decreasing trend,where the estimate as of tod... Natural gas hydrate(NGH)has attracted much attention as a new alternative energy globally.However,evaluations of global NGH resources in the past few decades have casted a decreasing trend,where the estimate as of today is less than one ten-thousandth of the estimate forty years ago.The NGH researches in China started relatively late,but achievements have been made in the South China Sea(SCS)in the past two decades.Thirty-five studies had been carried out to evaluate NGH resource,and results showed a flat trend,ranging from 60 to 90 billion tons of oil equivalent,which was 2-3 times of the evaluation results of technical recoverable oil and gas resources in the SCS.The big difference is that the previous 35 group of NGH resource evaluations for the SCS only refers to the prospective gas resource with low grade level and high uncertainty,which cannot be used to guide exploration or researches on development strategies.Based on the analogy with the genetic mechanism of conventional oil and gas resources,this study adopts the newly proposed genetic method and geological analogy method to evaluate the NGH resource.Results show that the conventional oil and gas resources are 346.29×108t,the volume of NGH and free dynamic field are 25.19×104km3 and(2.05-2.48)×106km3,and the total amount of in-situ NGH resources in the SCS is about(4.47-6.02)×1012m3.It is considered that the resource of hydrate should not exceed that of conventional oil and gas,so it is 30 times lower than the previous estimate.This study provides a more reliable geological basis for further NGH exploration and development. 展开更多
关键词 South China Sea Natural gas hydrate Natural gas hydrate resources Conventional oil and gas resources Genetic method Analogy method
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Preparation of Mesoporous CeO2with High Thermal Stability by Ammonium Carbonate Hydrolysis Method 认领 引用 被引量：1
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作者 CHEN Shan-Hu CAO Yi +4 位作者 LAN Li ZHAO Ming SHI Zhong-Hua GONG Mao-Chu CHEN Yao-Qiang 《无机化学学报》 SCIE CAS CSCD 北大核心 2013年第10期2231-2238,共8页
Two series of CeO2 materials were prepared by two different synthetic routes,i.e.the conventional ammonia precipitation route(CR)and the ammonium carbonate hydrolysis route(HA)using(NH4)=CO3 in the presence of hydroge... Two series of CeO2 materials were prepared by two different synthetic routes,i.e.the conventional ammonia precipitation route(CR)and the ammonium carbonate hydrolysis route(HA)using(NH4)=CO3 in the presence of hydrogen peroxide.The formation process and decomposition behavior of the precipitates were investigated by FTIR,Raman,thermogravimetric and differential thermal analysis(TG/DTA)and X-ray photoelectron spectroscopy(XPS).The results show that the as-prepared precipitate obtained by HA consists of 022-,CO3z-and OH-species.However,after hydrothermal digestion at 80~C,the CO32-species is gradually hydrolyzed into OH-species.Although the chemical components of the digested precipitates prepared by these two routes are almost the same,the agglomeration of CeOa particles is markedly modified.The CeO2 powder produced by HA exhibits higher thermal stability and better reduction property compared to that obtained by CR.After the heat treatment at 900℃for 3 h,the CeO2 powder from HA route still remains a surface area of 27 m2.g-1. 展开更多
关键词 hydrolysis method conventional precipitation high thermal stability redox properties
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化学品离子性定量表征方法的建立和应用 认领 引用
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作者 肖勤洁 周思程 +2 位作者 缪华丽 刘明雪 张智慧 《印染助剂》 CAS 2026年第2期65-70,共6页
离子性测试是化学品一种很常见的测试,在纺织品行业必不可少。目前测试离子性的方法主要是普通离子性测试方法(HG/T 4267—2011)和Zeta电位测定方法(GB/Z 42353—2023),但均只能定性分析,且会受到多种外界因素干扰。建立一种由颗粒电荷... 离子性测试是化学品一种很常见的测试,在纺织品行业必不可少。目前测试离子性的方法主要是普通离子性测试方法(HG/T 4267—2011)和Zeta电位测定方法(GB/Z 42353—2023),但均只能定性分析,且会受到多种外界因素干扰。建立一种由颗粒电荷检测仪(PCD)定量测试化学品离子性的方法。用以上3种方法对不同化学品助剂进行测试,然后分析结果。评价PCD方法测试离子性的可行性,建立一种定量分析化学品离子性的测试方法,并运用于纺织行业。 展开更多
关键词 离子性 普通离子性测试方法 Zeta电位测定方法 PCD
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大数据驱动下普速铁路通过能力利用评估方法 认领 引用
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作者 田园威 张泽锡 +1 位作者 张守帅 张春来 《中国铁路》 北大核心 2026年第3期1-7,共7页
随着铁路运输需求的持续增长和技术设备的快速升级,传统铁路通过能力评估方法已难以适应现代铁路规划与运营需求。通过整合历史运行数据、优化关键参数取值,构建面向路网规划建设的普速铁路线路通过能力利用评估方法,实现通过能力利用... 随着铁路运输需求的持续增长和技术设备的快速升级,传统铁路通过能力评估方法已难以适应现代铁路规划与运营需求。通过整合历史运行数据、优化关键参数取值,构建面向路网规划建设的普速铁路线路通过能力利用评估方法,实现通过能力利用的动态推算,使得传统的扣除系数法更适应现代铁路发展需求。基于全路年度数据,精细化计算出不同时段下不同线路、不同区段及区间的通过能力,以便掌握我国铁路通过能力利用的基本情况,精准识别出能力紧张区段,验证其在动态调整、计算效率及精度上的优势,为提升路网规划建设水平、提高投资决策精准性提供数据支持。 展开更多
关键词 普速铁路 铁路通过能力 扣除系数法 大数据分析 参数动态优化
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加味半夏白术天麻汤联合醒脑开窍针法对蛛网膜下腔出血脑血管痉挛患者的临床疗效 认领 引用
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作者 陈卫 卢海燕 +2 位作者 林静 李彬 牛昱光 《中成药》 CAS CSCD 北大核心 2026年第1期96-101,共6页
目的探讨加味半夏白术天麻汤联合醒脑开窍针法对蛛网膜下腔出血脑血管痉挛患者的临床疗效。方法208例患者随机分为对照组、针刺组、中药组、联合组,每组52例,对照组给予常规治疗,针刺组在对照组基础上加用醒脑开窍针法,中药组在对照组... 目的探讨加味半夏白术天麻汤联合醒脑开窍针法对蛛网膜下腔出血脑血管痉挛患者的临床疗效。方法208例患者随机分为对照组、针刺组、中药组、联合组,每组52例,对照组给予常规治疗,针刺组在对照组基础上加用醒脑开窍针法,中药组在对照组基础上加用加味半夏白术天麻汤,联合组在对照组基础上加用加味半夏白术天麻汤联合醒脑开窍针法治疗,疗程21 d。检测临床疗效、颅内血流动力学指标(MCA-Vm、VICA-Vm、Lindegaard指数)、血管内皮功能指标(ET-1、VEGF、CGRP)、神经功能指标(mRS评分、MOCA评分)、中医证候评分、不良反应发生率变化。结果联合组总有效率高于对照组(P0.05)。结论加味半夏白术天麻汤联合醒脑开窍针法可安全有效地调节蛛网膜下腔出血脑血管痉挛患者脑血流动力学,缓解临床症状,促进神经功能恢复。 展开更多
关键词 加味半夏白术天麻汤 醒脑开窍针法 常规治疗 蛛网膜下腔出血 脑血管痉挛
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线条类痕迹分析比对技术的发展与应用 认领 引用
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作者 陈宇航 李大武 李刚 《科技创新与生产力》 2026年第6期81-84,共4页
在数字化与人工智能技术的背景下,以“传统—数字化—智能化”为主线,系统梳理线条类痕迹比对的研究进展,并评价分析不同方法的优势与适用局限以及展望未来的发展方向,指出痕迹分析逐步朝着客观化与自动化方向演进,提升了比对效率与准确... 在数字化与人工智能技术的背景下,以“传统—数字化—智能化”为主线,系统梳理线条类痕迹比对的研究进展,并评价分析不同方法的优势与适用局限以及展望未来的发展方向,指出痕迹分析逐步朝着客观化与自动化方向演进,提升了比对效率与准确性,为相关领域的科学研究提供参考。 展开更多
关键词 线条类痕迹 常规比对方法 数字化 人工智能
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CLINICAL OBSERVATION ON TREATMENT OF PERIPHERAL FACIAL PARALYSIS WITH DIFFERENT NEEDLING METHODS 认领 引用
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作者 胡幼平 杨运宽 《World Journal of Acupuncture-Moxibustion》 CAS 2002年第4期37-40,共4页
Purpose: To observe the clinical therapeutic effect of different needling methods in the treatment of peripheral facial paralysis. Methods: A total of 158 cases of peripheral facial palsy patients are randomly divided... Purpose: To observe the clinical therapeutic effect of different needling methods in the treatment of peripheral facial paralysis. Methods: A total of 158 cases of peripheral facial palsy patients are randomly divided into treatment group (n=116 cases, who are treated by penetration needling method) and control group (n=42 cases, who are treated with traditional acupuncture method). In treatment group, main acupoint pairs for penetration needling are Yangbai (GB 14) -Yuyao (EX-HN 4), Tongziliao (GB 1) -Taiyang (EX-HN 5), Jiache (ST 6) -Dicang (ST 4) and Chengjiang (CV 24) -Jiachengjiang (EX-HN) on the affected side, and in control group, the main acupoints used are Yifeng (TE 17), Yangbai (GB 14), Sibai (ST 2), Dicang (ST 4), Jiache (ST 6), Jingming (BL 1) and Chengjiang (CV 24). The treatment is given once daily with 10 sessions being a therapeutic course. Results: After 3 courses of treatment, the cure rates of treatment group and control group are 81.8% and 66.7% separately, showing a significant difference between two groups (P<0.05). The total effective rates of treatment and control groups are 96.5% and 88.1% separately, presenting a significant difference between two groups (P<0.01). Conclusion: The therapeutic effect of penetration needling method is better than that of traditional acupuncture method. 展开更多
关键词 Facial Paralysis Penetration needling method Conventional acupuncture method
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A new method for fluid identification and saturation calculation of low contrast tight sandstone reservoir 认领 引用 被引量：2
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作者 Shuai Wang Ran-Hong Xie +2 位作者 Guo-Wen Jin Jiang-Feng Guo Li-Zhi Xiao 《Petroleum Science》 SCIE EI CAS CSCD 2024年第5期3189-3201,共13页
The resistivity difference between oil and gas layers and the water layers in low contrast tight sandstone reservoirs is subtle. Fluid identification and saturation calculation based on conventional logging methods ar... The resistivity difference between oil and gas layers and the water layers in low contrast tight sandstone reservoirs is subtle. Fluid identification and saturation calculation based on conventional logging methods are facing challenges in such reservoirs. In this paper, a new method is proposed for fluid identification and saturation calculation in low contrast tight sandstone reservoirs. First, a model for calculating apparent formation water resistivity is constructed, which takes into account the influence of shale on the resistivity calculation and avoids apparent formation water resistivity abnormal values.Based on the distribution of the apparent formation water resistivity obtained by the new model, the water spectrum is determined for fluid identification in low contrast tight sandstone reservoirs.Following this, according to the average, standard deviation, and endpoints of the water spectrum, a new four-parameter model for calculating reservoir oil and gas saturation is built. The methods proposed in this paper are applied to the low contrast tight sandstone reservoirs in the Q4 formation of the X53 block and X70 block in the south of Songliao Basin, China. The results show that the water spectrum method can effectively distinguish oil-water layers and water layers in the study area. The standard deviation of the water spectrum in the oil-water layer is generally greater than that in the water layer. The new four-parameter model yields more accurate oil and gas saturation. These findings verify the effectiveness of the proposed methods. 展开更多
关键词 Low contrast reservoirs Fluid identification Saturation calculation Water spectrum method Conventional logging
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