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Modified Generalized Degree Distance of Some Graph Operations
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作者 Shengmei Lv 《Advances in Pure Mathematics》 2018年第6期548-558,共11页
The modified generality degree distance, is defined as: ,?which is a modification of the generality degree distance. In this paper, we give some computing formulas of the modified generality degree distance of some gr... The modified generality degree distance, is defined as: ,?which is a modification of the generality degree distance. In this paper, we give some computing formulas of the modified generality degree distance of some graph operations, such as, composition, join, etc. 展开更多
关键词 DEGREE DISTANCE modified GENERALIZED DEGREE DISTANCE GRAPH operations
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Extracorporeal membrane oxygenation in curing a young man after modified Fontan operation:A case report
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作者 He-Bing Guo Jian-Bo Tan +11 位作者 Yong-Chao Cui Hao-Feng Xiong Chuan-Sheng Li Yu-Feng Liu Yao Sun Lin Pu Pan Xiang Ming Zhang Jing-Jing Hao Ning-Ning Yin Xiao-Tong Hou Jing-Yuan Liu 《World Journal of Clinical Cases》 SCIE 2022年第29期10614-10621,共8页
BACKGROUND The Fontan operation is the only treatment option to change the anatomy of the heart and help improve patients’ hemodynamics.After successful operation,patients typically recover the ability to engage in g... BACKGROUND The Fontan operation is the only treatment option to change the anatomy of the heart and help improve patients’ hemodynamics.After successful operation,patients typically recover the ability to engage in general physical activity.As a better ventilatory strategy,extracorporeal membrane oxygenation(ECMO) provides gas exchange via an extracorporeal circuit,and is increasingly being used to improve respiratory and circulatory function.After the modified Fontan operation,circulation is different from that of patients who are not subjected to the procedure.This paper describe a successful case using ECMO in curing influenza A infection in a young man,who was diagnosed with Tausing-Bing syndrome and underwent Fontan operation 13 years ago.The special cardiac structure and circulatory characteristics are explored in this case.CASE SUMMARY We report a successful case using ECMO in curing influenza A infection in a 23-year-old man,who was diagnosed with Tausing-Bing syndrome and underwent Fontan operation 13 years ago.The man was admitted to the intensive care unit with severe acute respiratory distress syndrome as a result of influenza A infection.He was initially treated by veno-venous(VV) ECMO,which was switched to veno-venous-arterial ECMO(VVA ECMO) 5 d later.As circulation and respiratory function gradually improved,the VVA ECMO equipment was removed on May 1,2018.The patient was successfully withdrawn from artificial ventilation on May 28,2018 and then discharged from hospital on May 30,2018.CONCLUSION After the modified Fontan operation,circulation is different compared with that of patients who are not subjected to the procedure.There are certainly many differences between them when they receive the treatment of ECMO.Due to the special cardiac structure and circulatory characteristics,an individualized liquid management strategy is necessary and it might be better for them to choose an active circulation support earlier. 展开更多
关键词 Acute respiratory distress syndrome Extracorporeal membrane oxygenation modified Fontan operation Tausing-Bing syndrome Case report
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Modified Appleby operation for carcinoma of the pancreatic body and tail
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作者 Dongfang Huang 《Oncology and Translational Medicine》 2020年第4期182-184,共3页
This is a case of a pancreatic tumor with invasion of the celiac stem treated using the modified Appleby operation.Preoperatively,routine B-ultrasound,computed tomography,and magnetic resonance imaging were performed.... This is a case of a pancreatic tumor with invasion of the celiac stem treated using the modified Appleby operation.Preoperatively,routine B-ultrasound,computed tomography,and magnetic resonance imaging were performed.In the perioperative period,the combined gallbladder was excised;the duration of the operation was 5 h and volume of blood loss was approximately 500 ml.Postoperatively,the liver function temporarily returned and after a liver protection treatment,it returned to normal within 2 weeks.The liver had normal arterial blood supply,and the postoperative course was uneventful.It is safe and feasible to resect the whole pancreatic body and tail tumor combined with celiac stem resection.It can improve the resection rate of tumor and relieve pain. 展开更多
关键词 modified Appleby operation pancreas cancer
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Modified Foerster-Dandy 's operation for treatment of spasmodic torticollis under endoscope-assisting
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作者 刘江 《外科研究与新技术》 2011年第3期218-218,共1页
Objective To study microsurgical effectiveness Foerster-Dandy’s endoscope-assisted operation for treatment of spasmodic torticollis. Methods 183 cases of spasmodic torticollis patients were treated by microsurgical m... Objective To study microsurgical effectiveness Foerster-Dandy’s endoscope-assisted operation for treatment of spasmodic torticollis. Methods 183 cases of spasmodic torticollis patients were treated by microsurgical modified Foerster-Dandy’s operation from July 2001 to June 2009,which was randomly 展开更多
关键词 modified Foerster-Dandy s operation for treatment of spasmodic torticollis under endoscope-assisting
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A NOTE ON MODIFIED BASKAKOV TYPE OPERATORS 被引量:7
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作者 Vijay Gupta 《Analysis in Theory and Applications》 1994年第3期74-78,共5页
In the present paper, we define a new kind of positive linear operators and study the rate ofconvergence in simultaneous approximation. This operator being capable of providing better approxima-tion than modified Bask... In the present paper, we define a new kind of positive linear operators and study the rate ofconvergence in simultaneous approximation. This operator being capable of providing better approxima-tion than modified Baskakov operators. 展开更多
关键词 operATORS simultaneous providing capable measurable APPROXIMATION Polyno PROOF INTEGRABLE modified
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ON THE CONVERGENCE OF THE MODIFIED SZASZ-MIRAKJAN OPERATOR 被引量:3
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作者 Sun Xiehua China Institute of Metrology, Hangzhou 《Analysis in Theory and Applications》 1994年第1期20-25,共6页
A necessary and sufficient condition of convergence for the modified Szasz-Mirakjan operator is estab-lished.
关键词 estab APPROXIMATION holds operATOR 石丁 EVERYWHERE modified UNIFORMLY 气月 satis
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IMPROVED RATE OF CONVERGENCE FOR THE MODIFIED SZASZ-MIRAKYAN OPERATORS 被引量:1
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作者 Gupta Vijay Gupta Prabhakar Rogalski Marc 《Analysis in Theory and Applications》 2000年第3期94-99,共6页
For some locally bounded function f measurable on the interval we have estimated the rate of convergence of the modified Szasz-Mirakyan operators M f at those points at which one sided limits exist. We have used the C... For some locally bounded function f measurable on the interval we have estimated the rate of convergence of the modified Szasz-Mirakyan operators M f at those points at which one sided limits exist. We have used the Chanturiya’s of variation. Our result improves the estimate of [1], [3], [4], [5], [6] and [9]. 展开更多
关键词 MATH IMPROVED RATE OF CONVERGENCE FOR THE modified SZASZ-MIRAKYAN operATORS
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Multiplication and Translation Operators on the Fock Spaces for the q-Modified Bessel Function
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作者 Fethi Soltani 《Advances in Pure Mathematics》 2011年第4期221-227,共7页
We study the multiplication operator M by z2 and the q-Bessel operator Δq,αon a Hilbert spaces Fq,α of entire functions on the disk D( o, ) , 0qq,α into itself. Next, we study a generalized translation operators o... We study the multiplication operator M by z2 and the q-Bessel operator Δq,αon a Hilbert spaces Fq,α of entire functions on the disk D( o, ) , 0qq,α into itself. Next, we study a generalized translation operators on Fq,α . 展开更多
关键词 Generalized q-Fock Spaces q-Iα modified BESSEL Function q-Bessel operATOR MULTIPLICATION operATOR q-Translation operators
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Modified Double Zeta Function and Its Properties
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作者 Arif M. Khan 《Advances in Pure Mathematics》 2016年第3期159-167,共9页
The present paper aims at introducing and investigating a new class of generalized double zeta function i.e. modified double zeta function which involves the Riemann, Hurwitz, Hurwitz-Lerch, Barnes double zeta functio... The present paper aims at introducing and investigating a new class of generalized double zeta function i.e. modified double zeta function which involves the Riemann, Hurwitz, Hurwitz-Lerch, Barnes double zeta function and Bin-Saad generalized double zeta function as particular cases. The results are obtained by suitably applying Riemann-Liouville type and Tremblay fractional integral and differential operators. We derive the expansion formula for the proposed function with some of its properties via fractional operators and discuss the link with known results. 展开更多
关键词 modified Zeta Function Riemann-Liouville operator Tremblay Fractional operators Hypergeometric Function
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On Weighted Approximation by Modified Bernstein Operators for Functions with Singularities
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作者 Meiling Wang Dansheng Yu 《Analysis in Theory and Applications》 2014年第4期405-416,共12页
Della Vecchia et al.(see [2]) introduced a kind of modified Bernstein operators which can be used to approximate functions with singularities at endpoints on[0,1]In the present paper, we obtain a kind of pointwise Ste... Della Vecchia et al.(see [2]) introduced a kind of modified Bernstein operators which can be used to approximate functions with singularities at endpoints on[0,1]In the present paper, we obtain a kind of pointwise Stechkin-type inequalities for weighted approximation by the modified Bernsetin operators. 展开更多
关键词 BERNSTEIN算子 加权逼近 奇函数 近似函数 运营商 不等式 端点 奇点
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MODIFIED APPROXIMATE PROXIMAL POINT ALGORITHMS FOR FINDING ROOTS OF MAXIMAL MONOTONE OPERATORS
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作者 曾六川 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2004年第3期293-301,共9页
In order to find roots of maximal monotone operators,this paper introduces and studies the modified approximate proximal point algorithm with an error sequence {e k} such that ‖e k‖≤η k‖x k-x~ k‖ with ... In order to find roots of maximal monotone operators,this paper introduces and studies the modified approximate proximal point algorithm with an error sequence {e k} such that ‖e k‖≤η k‖x k-x~ k‖ with ∞k=0(η k-1)<+∞ and inf k≥0η k=μ≥1. Here,the restrictions on {η k} are very different from the ones on {η k} ,given by He et al (Science in China Ser.A,2002,32(11):1026 1032.) that sup k≥0η k=ν<1. Moreover,the characteristic conditions of the convergence of the modified approximate proximal point algorithm are presented by virtue of the new technique very different from the ones given by He et al. 展开更多
关键词 极大 单调 算子根 修正 近似邻近点 算法
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Modified Wide-angle Beam Propagation Method Using Douglas Operators
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作者 JU Zhenle,FU Junmei,FENG Enxin (Lab. of Microwave Eng. and Opt. Commun.Tech.,Xi’an Jiaotong University,Xi’an 710049,CHN) 《Semiconductor Photonics and Technology》 CAS 1997年第4期269-273,共5页
ModifiedWide-angleBeamPropagationMethodUsingDouglasOperators①JUZhenle,FUJunmei,FENGEnxin(Lab.ofMicrowaveEng.... ModifiedWide-angleBeamPropagationMethodUsingDouglasOperators①JUZhenle,FUJunmei,FENGEnxin(Lab.ofMicrowaveEng.andOpt.Commun.Tec... 展开更多
关键词 波导光子器 宽光束 光束传播法 道格拉斯算符
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Modified Kugel补片在腹股沟嵌顿疝修补术中的应用28例 被引量:1
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作者 曾荻洵 任波 +1 位作者 向君华 陈建军 《中国医药导报》 CAS 2011年第12期151-152,共2页
目的:探讨Modified Kugel补片治疗腹股沟嵌顿疝的技术要点,评价其效果。方法:回顾性分析国防科大医院2005年4月~2010年1月应用Modified Kugel补片手术治疗腹股沟嵌顿疝28例患者临床资料。结果:平均手术时间为58 min,术后平均住院日为7.... 目的:探讨Modified Kugel补片治疗腹股沟嵌顿疝的技术要点,评价其效果。方法:回顾性分析国防科大医院2005年4月~2010年1月应用Modified Kugel补片手术治疗腹股沟嵌顿疝28例患者临床资料。结果:平均手术时间为58 min,术后平均住院日为7.5 d,术后恢复快,并发症少、轻,随访6~48个月,无复发。结论:Modified Kugel补片治疗腹股沟嵌顿疝是一种安全可靠、并发症少、复发率低的修补方式,尤其适宜于腹横筋膜薄弱或缺损较重的患者。 展开更多
关键词 modified KUGEL补片 腹股沟嵌顿疝 手术
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Modeling on a Modified Feeding Mode of Simulated Moving Bed for Improving Productivity 被引量:4
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作者 危凤 沈波 +2 位作者 陈明杰 赵迎宪 邵立平 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2010年第2期239-243,共5页
A new feeding mode for a simulated moving bed(SMB) is proposed.The outlet stream from zone II is collected at regular intervals.The concentration of the solution is increased by dissolving raw materials and then fed t... A new feeding mode for a simulated moving bed(SMB) is proposed.The outlet stream from zone II is collected at regular intervals.The concentration of the solution is increased by dissolving raw materials and then fed to zone III as the feed stream during the next collection interval.In this feeding mode,the concentration of the stream fed to zone III is identical to that of original feed,while in a conventional SMB,the feed is diluted by mix-ing with the outlet stream of zone II before feeding to zone III.The new feeding mode increases the inlet concentra-tion of zone III.A modeling investigation shows that higher inlet concentration of zone III increases the height of concentration band in SMB,improving the separation performance significantly.In comparison with the traditonal feeding mode,the new feeding mode increases the productivity by 23.52%and decreases the solvent consumption by 22.56%,so as to increase the raffinate and extract concentrations by 53.17%and 20.38%,respectively.The col-lection interval for the outlet stream from zone II has no effect on the separation performance after reaching the steady state,so that the collection interval can be increased to make the operation more convenient. 展开更多
关键词 模拟移动床 饲养模式 生产力 改性 混合饲料 中小企业 分离性能 喂养方式
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带立方非线性修正Camassa-Holm方程的初值问题
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作者 张欣 吴兴龙 《数学物理学报(A辑)》 CSCD 北大核心 2024年第2期376-383,共8页
该文利用Kato半群理论和耗散算子的定义,研究了带立方非线性修正Camassa-Holm方程的初值问题,并在Sobolev空间H^(s,p)(R)(s≥1,p∈(1,∞))中建立了其解的存在唯一性,推广了Fu等在Besov空间B_(p,r)^(s)(R)(p,r≥1,s>max{2+1/p,5/2})... 该文利用Kato半群理论和耗散算子的定义,研究了带立方非线性修正Camassa-Holm方程的初值问题,并在Sobolev空间H^(s,p)(R)(s≥1,p∈(1,∞))中建立了其解的存在唯一性,推广了Fu等在Besov空间B_(p,r)^(s)(R)(p,r≥1,s>max{2+1/p,5/2})中所得到的适定性结果(J Differ Equations,2013,255:1905-1938). 展开更多
关键词 修正Camassa-Holm方程 适定性 耗散算子 Kato半群理论
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水平轴风力机气动转矩模型优化研究
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作者 张琳 刘旭东 +3 位作者 常佳飞 艾超 陈立娟 陈文婷 《液压与气动》 北大核心 2024年第3期60-69,共10页
为得到风电机组并网发电控制精准的控制指令,基于控制需求探究风力机的输出特性规律,并对其气动转矩进行精准建模。将实测数据与ANSYS仿真相结合,对AH-30 kW变桨距风力发电机叶片形变受典型材质影响和输出特性规律进行研究。结果表明:... 为得到风电机组并网发电控制精准的控制指令,基于控制需求探究风力机的输出特性规律,并对其气动转矩进行精准建模。将实测数据与ANSYS仿真相结合,对AH-30 kW变桨距风力发电机叶片形变受典型材质影响和输出特性规律进行研究。结果表明:中小型风力机因叶片材质不同而产生的弹性形变为细微形变,对风力机转矩模型和机组控制影响可忽略。风力机输出转矩受风影响存在较大波动和抖颤,需全面考虑多源扰动对机组控制性能的影响。利用实测数据与Fluent仿真相结合手段,修正后的风力机气动转矩数学模型与Fluent仿真输出误差为5.6%,能够较好反映真实风力机输出特性,为风电机组的并网发电控制奠定了一定理论基础。 展开更多
关键词 流固耦合 叶片材质 运行特性 气动转矩 模型优化
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修正q-Szász-Kantorovich算子在紧圆盘的复逼近(q>1)
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作者 闫丽新 韩领兄 《数学杂志》 2024年第3期247-258,共12页
本文给出了修正q-Szász-Kantorovich算子在复空间的定义,参照Gal S G等人在文献[10]的方法,研究了当q>1时修正q-Szász-Kantorovich算子在紧圆盘对解析函数的逼近性质,获得了Voronovskaja结果,并给出其精确估计,丰富了修正q... 本文给出了修正q-Szász-Kantorovich算子在复空间的定义,参照Gal S G等人在文献[10]的方法,研究了当q>1时修正q-Szász-Kantorovich算子在紧圆盘对解析函数的逼近性质,获得了Voronovskaja结果,并给出其精确估计,丰富了修正q-Szász-Kantorovich算子在复空间的逼近性质. 展开更多
关键词 修正q-Szász-Kantorovich算子 逼近性质 Voronovskaja型结果
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基于复剪切波变换与VGG19模型的医学图像融合方法
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作者 王钰帏 王雷 +1 位作者 郭新萍 程天琪 《山东理工大学学报(自然科学版)》 CAS 2024年第4期53-60,共8页
针对传统医学图像融合方法存在的细节信息不够清晰、边缘信息易丢失和图像失真等缺点,以及深度学习网络缺乏足够的训练数据集等问题,提出了一种基于复剪切波变换和预训练网络模型VGG19的多模态医学图像融合方法。首先,利用复剪切波变换... 针对传统医学图像融合方法存在的细节信息不够清晰、边缘信息易丢失和图像失真等缺点,以及深度学习网络缺乏足够的训练数据集等问题,提出了一种基于复剪切波变换和预训练网络模型VGG19的多模态医学图像融合方法。首先,利用复剪切波变换提取医学图像边缘和纹理信息,并得到多尺度、多方向的子带系数。然后,使用加权局部能量和修正的拉普拉斯算子对低频子带系数进行融合;引入预训练的VGG19提取多层特征图,结合加权评估规则来获取高频子带的融合结果。最后,对融合的高频和低频子带,施加复剪切波逆变换重构融合图像。实验表明,该方法得到的融合图像,不仅可以清晰地显示图像的细节信息和边缘信息,而且能够有效抑制伪影和失真现象的产生,在主观视觉比较和6种客观评价指标下能够达到更佳融合效果。 展开更多
关键词 医学图像 图像融合 复剪切波变换 VGG19模型 修正的拉普拉斯算子
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改良小切口手术与传统甲状腺切除术治疗甲状腺瘤的临床效果比较
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作者 顾建龙 《中国实用医药》 2024年第8期70-73,共4页
目的 探究改良小切口手术治疗甲状腺瘤的临床疗效。方法 60例甲状腺瘤患者,将入院序列数作为分组基础,应用随机分组原则分为对照组和观察组,每组30例。对照组采用传统甲状腺切除术,观察组采用改良小切口手术。比较两组手术相关指标、疼... 目的 探究改良小切口手术治疗甲状腺瘤的临床疗效。方法 60例甲状腺瘤患者,将入院序列数作为分组基础,应用随机分组原则分为对照组和观察组,每组30例。对照组采用传统甲状腺切除术,观察组采用改良小切口手术。比较两组手术相关指标、疼痛程度、并发症发生率及手术前后甲状腺功能指标[游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺激素(TSH)]、应激指标[皮质醇(Cor)、去甲肾上腺素(NE)]。结果 观察组手术时间(54.32±9.71)min、住院时间(4.35±0.74)d短于对照组的(62.03±10.02)min、(7.12±0.66)d,术中出血量(53.00±5.96)ml少于对照组的(85.97±6.80)ml,切口大小(4.53±0.46)cm小于对照组的(7.11±0.62)cm(P<0.05)。观察组视觉模拟评分法(VAS)评分为(2.38±0.19)分,低于对照组的(5.09±0.48)分(t=28.753, P=0.000<0.05)。观察组并发症发生率3.33%低于对照组的20.00%(P<0.05)。术后,观察组FT3(5.84±0.96)pmol/L、FT4(5.32±1.01)pmol/L高于对照组的(5.32±1.01)、(12.99±2.49)pmol/L, TSH(2.08±0.59)mU/L低于对照组的(2.57±0.76)mU/L(P<0.05)。观察组术后Cor水平为(251.62±13.31)μg/L,低于对照组的(283.06±10.61)μg/L(P<0.05)。观察组术后NE水平为(333.10±12.42)ng/L,低于对照组的(406.08±12.61)ng/L(P<0.05)。结论 对甲状腺瘤患者采用改良小切口手术治疗,能够取得优良的治疗效果,同时可以改善手术过程中的指标、患者的疼痛情况、并发症发生情况以及应激情况,值得推广与应用。 展开更多
关键词 改良小切口手术 甲状腺瘤 手术相关指标 疼痛程度 并发症发生率 甲状腺功能 应激水平
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改良Bardenpho工艺的设计与运行效果分析
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作者 王磊 慕杨 田海成 《城市道桥与防洪》 2024年第2期128-131,I0014,共5页
济南某污水处理厂工程设计规模为4万m~3/d,二级处理采用改良Bardenpho工艺,同时通过设置多点进水、碳源多点投加,前端设置预缺氧池,增设二级缺氧/好氧可变段等措施,为污水厂提供多种工艺运行模式。运行结果表明:改良Bardenoho工艺对COD_... 济南某污水处理厂工程设计规模为4万m~3/d,二级处理采用改良Bardenpho工艺,同时通过设置多点进水、碳源多点投加,前端设置预缺氧池,增设二级缺氧/好氧可变段等措施,为污水厂提供多种工艺运行模式。运行结果表明:改良Bardenoho工艺对COD_(Cr)、NH_(3)-N、TN、TP等污染物去除率分别达到了94.98%、98.35%、93.95%、79.68%,出水COD_(Cr)、NH_(3)-N、TN、TP分别为11.7、0.68、3.03、0.77 mg/L,除TP尚需通过深度处理强化去除外,其余指标均优于设计出水水质。 展开更多
关键词 改良Bardenoho工艺 脱氮除磷 运行效果
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