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T_2 Separation Subsets and T_2 Separateness in L-fuzzy Topological Spaces 被引量:3
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作者 孟广武 《Chinese Quarterly Journal of Mathematics》 CSCD 1997年第2期11-18, ,共8页
The concept of α-CT2 separation L-fuzzy subsets in L-fuzzy topological spaces is presented by taking the stratiform structure of L-fuzzy subsets as the point of departure,and its basic characterizations and some topo... The concept of α-CT2 separation L-fuzzy subsets in L-fuzzy topological spaces is presented by taking the stratiform structure of L-fuzzy subsets as the point of departure,and its basic characterizations and some topological properties are discussed,and the relation between it and other separateness is exposed,and the action is studied of α-CT2 separateness in N-compact spaces and N-paracompact spaces. 展开更多
关键词 fuzzy topological space α-CT_2 separation subset fuzzy lattice stratiform structure
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腺样体肥大患儿机体免疫功能变化研究 被引量:15
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作者 王娟 苏金柱 +1 位作者 温鑫 王登茂 《中国耳鼻咽喉头颈外科》 CSCD 2015年第12期635-636,共2页
<正>腺样体也称咽扁桃体或增殖体,属于淋巴组织,表面呈桔瓣样。正常生理情况下,儿童6~7岁时腺样体发育至最大,青春期后逐渐萎缩,成人后基本消失~[1]。腺样体位于鼻咽顶后壁处,病理性肥大易引起鼻堵、张口呼吸、耳闷、听力下降等症... <正>腺样体也称咽扁桃体或增殖体,属于淋巴组织,表面呈桔瓣样。正常生理情况下,儿童6~7岁时腺样体发育至最大,青春期后逐渐萎缩,成人后基本消失~[1]。腺样体位于鼻咽顶后壁处,病理性肥大易引起鼻堵、张口呼吸、耳闷、听力下降等症状,最终造成慢性鼻-鼻窦炎、阻塞性睡眠呼吸暂停低通气综合征及分泌性中耳炎等疾病,给儿童的颌面骨发育、智力发育造成严重影响。 展开更多
关键词 儿童(Child) 免疫球蛋白类(Immunoglobulins) T淋巴细胞亚群(T-Lymphocyte subsets) 腺样体肥大(adenoid vegetation)
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工业CT散射校正方法的研究 被引量:3
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作者 孙少华 高文焕 +1 位作者 张丽 陈志强 《核电子学与探测技术》 CAS CSCD 北大核心 2002年第5期426-428,434,共4页
在工业 CT的扫描重建过程中 ,散射效应使得重建图像出现模糊 ,各点灰度值同实际物体的吸收系数之间出现偏差 ,需要进行校正。如果采用一般的卷积方法 ,则需要迭代多次才能收敛 ,所以在校正时间上不能达到要求。采用一种结合散射模型的 O... 在工业 CT的扫描重建过程中 ,散射效应使得重建图像出现模糊 ,各点灰度值同实际物体的吸收系数之间出现偏差 ,需要进行校正。如果采用一般的卷积方法 ,则需要迭代多次才能收敛 ,所以在校正时间上不能达到要求。采用一种结合散射模型的 Ordered Subsets Convex方法对散射效果进行校正 。 展开更多
关键词 工业CT 散射校正 图像重建 CONVEX ORDERED subsets 图像质量
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Modulation Instability and Non-Degenerate Akhmediev Breathers of Manakov Equations 被引量:5
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作者 Chong Liu Shao-Chun Chen +1 位作者 Xiankun Yao Nail Akhmediev 《Chinese Physics Letters》 SCIE EI CAS CSCD 2022年第9期28-32,共5页
We reveal a special subset of non-degenerate Akhmediev breather(AB)solutions of Manakov equations that only exist in the focusing case.Based on exact solutions,we present the existence diagram of such excitations on t... We reveal a special subset of non-degenerate Akhmediev breather(AB)solutions of Manakov equations that only exist in the focusing case.Based on exact solutions,we present the existence diagram of such excitations on the frequency-wavenumber plane.Conventional single-frequency modulation instability leads to simultaneous excitation of three ABs with two of them being non-degenerate. 展开更多
关键词 EXCITATION DEGENERATE SUBSET
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Random dynamic analysis of vertical train–bridge systems under small probability by surrogate model and subset simulation with splitting 被引量:11
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作者 Huoyue Xiang Ping Tang +1 位作者 Yuan Zhang Yongle Li 《Railway Engineering Science》 2020年第3期305-315,共11页
The response of the train–bridge system has an obvious random behavior.A high traffic density and a long maintenance period of a track will result in a substantial increase in the number of trains running on a bridge... The response of the train–bridge system has an obvious random behavior.A high traffic density and a long maintenance period of a track will result in a substantial increase in the number of trains running on a bridge,and there is small likelihood that the maximum responses of the train and bridge happen in the total maintenance period of the track.Firstly,the coupling model of train–bridge systems is reviewed.Then,an ensemble method is presented,which can estimate the small probabilities of a dynamic system with stochastic excitations.The main idea of the ensemble method is to use the NARX(nonlinear autoregressive with exogenous input)model to replace the physical model and apply subset simulation with splitting to obtain the extreme distribution.Finally,the efficiency of the suggested method is compared with the direct Monte Carlo simulation method,and the probability exceedance of train responses under the vertical track irregularity is discussed.The results show that when the small probability of train responses under vertical track irregularity is estimated,the ensemble method can reduce both the calculation time of a single sample and the required number of samples. 展开更多
关键词 Train–bridge system Ensemble method Surrogate model Nonlinear autoregressive with exogenous input Subset simulation with splitting Small probability
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EXTREME POINTS AND SUPPORT POINTS OF A CLASS OF ANALYTIC FUNCTIONS 被引量:2
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作者 彭志刚 刘伦刚 《Acta Mathematica Scientia》 SCIE CSCD 2000年第1期131-136,共6页
Suppose that {b(n)} and {c(n)} are two positive sequences. Let F({b(n)}, {c(n)}) = {f(z) : f(z) is analytic in \z\ < 1, f(z) = z - Sigma(n=2)(+infinity) a(n)z(n), a(n) greater than or equal to 0, Sigma(n=2)(+infini... Suppose that {b(n)} and {c(n)} are two positive sequences. Let F({b(n)}, {c(n)}) = {f(z) : f(z) is analytic in \z\ < 1, f(z) = z - Sigma(n=2)(+infinity) a(n)z(n), a(n) greater than or equal to 0, Sigma(n=2)(+infinity) b(n)a(n) less than or equal to 1 and Sigma(n=2)(+infinity) c(n)a(n) less than or equal to 1}. This article obtains the extreme points and support points of F({b(n)}, {c(n)}). 展开更多
关键词 topology of uniform convergence compact subsets of the unit disk extreme point support point
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Weakly δ-continuous Correspondences on Super-space 被引量:1
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作者 CHEN Gui-xiu 《Chinese Quarterly Journal of Mathematics》 CSCD 2010年第2期287-292,共6页
In the paper,we define weakly δ-continuous correspondences on super-space,On the basis of δ-open(closed) sets,θ-open(closed) sets and regular open(closed) sets in topological space,some equivalent conditions of thi... In the paper,we define weakly δ-continuous correspondences on super-space,On the basis of δ-open(closed) sets,θ-open(closed) sets and regular open(closed) sets in topological space,some equivalent conditions of this kind of correspondences are obtained,and some applications of subset nets and convergence nets are given. 展开更多
关键词 topological space super-space weakly δ-continuous correspondences subset nets
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外周血CD8^(+)T淋巴细胞亚群检测对过敏性鼻炎临床疗效的评估价值 被引量:1
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作者 麻琼钒 杜慧慧 +2 位作者 郑国君 施正贤 潘晓浩 《中国耳鼻咽喉头颈外科》 CSCD 2023年第3期195-198,共4页
目的探讨外周血CD8^(+)T淋巴细胞亚群检测对过敏性鼻炎(AR)临床疗效的评估价值。方法前瞻性选取2021年3月~2022年2月温州市中西医结合医院耳鼻咽喉科门诊治疗的120例AR患者和40例健康志愿者,分别设为研究组和对照组,比较两组外周血CD8^(... 目的探讨外周血CD8^(+)T淋巴细胞亚群检测对过敏性鼻炎(AR)临床疗效的评估价值。方法前瞻性选取2021年3月~2022年2月温州市中西医结合医院耳鼻咽喉科门诊治疗的120例AR患者和40例健康志愿者,分别设为研究组和对照组,比较两组外周血CD8^(+)T细胞、CD8^(+)CD28^(+)T细胞、CD8^(+)CD28-T细胞比率;研究组接受鼻用激素联合口服抗组胺药物治疗方案,根据治疗效果分为有效组(n=107)和无效组(n=13),比较有效组和无效组治疗前CD8^(+)T细胞、CD8^(+)CD28^(+)T细胞、CD8^(+)CD28-T细胞比率;Pearson相关性分析法分析外周血CD8^(+)T淋巴细胞亚群水平与鼻部症状总评分(totalnose symptomscore,TNSS)的相关性;以受试者工作特征(ROC)曲线分析治疗前CD8^(+)T淋巴细胞亚群对AR临床疗效的预测价值。结果研究组治疗前外周血CD8^(+)CD28^(+)T细胞比率高于对照组,CD8^(+)CD28-T细胞比率低于对照组(P<0.05)。研究组总有效率为89.17%;有效组治疗前CD8^(+)CD28^(+)T细胞比率低于无效组,CD8^(+)CD28-T细胞比率高于无效组(P<0.05);Pearson相关性分析显示,CD8^(+)CD28^(+)T细胞比率与TNSS评分呈正相关(r=0.324,P=0.006),CD8^(+)CD28-T细胞比率与TNSS评分呈负相关(r=-0.541,P=0.000)。ROC曲线结果显示,CD8^(+)T细胞、CD8^(+)CD28^(+)T细胞、CD8^(+)CD28-T细胞比率评估AR治疗无效的曲线下面积(AUC)(95%CI)分别为0.647(0.555~0.732)、0.683(0.592~0.765)、0.911(0.845~0.955),其中CD8^(+)CD28-T细胞的评估效能优于CD8^(+)T细胞、CD8^(+)CD28^(+)T细胞比率(P<0.05)。结论AR患者外周血CD8^(+)CD28^(+)T细胞比率升高,CD8^(+)CD28-T细胞比率降低,CD8^(+)T细胞比率相对稳定,治疗前CD8^(+)CD28-T细胞比率可作为预测AR患者的临床疗效的参考指标。 展开更多
关键词 鼻炎 过敏(Rhinitis Allergic) T淋巴细胞亚群(T-Lymphocyte subsets) CD8阳性T淋巴细胞(CD8-Positive T-Lymphocytes) 治疗结果(Treatment Outcome) CD8阳性T淋巴细胞(CD28-positive T-lymphocytes)
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应答器生产测试系统的设计与实现
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作者 赵伟宏 闫熠 肖茂波 《科技创新与应用》 2017年第4期77-77,共1页
文章基于SUBSET 085的标准要求,设计研制了一种应答器生产过程中的测试系统,该系统将测试设备与自动测试软件有机结合,快速完成应答器性能指标的全面测试工作。实际应用表明,该系统结构可靠,易扩展,在很大的程度上提高了应答器生产过程... 文章基于SUBSET 085的标准要求,设计研制了一种应答器生产过程中的测试系统,该系统将测试设备与自动测试软件有机结合,快速完成应答器性能指标的全面测试工作。实际应用表明,该系统结构可靠,易扩展,在很大的程度上提高了应答器生产过程中的测试效率。 展开更多
关键词 应答器 测试系统 SUBSET 085
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Changes of Some Immune Indexes after Resection of Liver Cancer and Their Relationship with Tumor Recurrence
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作者 郭亚军 吴孟超 +5 位作者 陈汉 刘广洛 孔宪涛 张鲁榕 祝念林 谢映华 《Journal of Medical Colleges of PLA(China)》 CAS 1989年第1期69-73,共5页
In the present study, T lymphocyte subsets, NK and ADCC activity, and lymphocytetransformation rate (LT) were investigated by flow cytornetry and micro- LDH relcasing test in 67paticnts with hepatocellular carcinoma(H... In the present study, T lymphocyte subsets, NK and ADCC activity, and lymphocytetransformation rate (LT) were investigated by flow cytornetry and micro- LDH relcasing test in 67paticnts with hepatocellular carcinoma(HCC) and the relationship between changes of host immuni-ty after operation and tumor (?) were, further explored by follow-up study and generalanalysis. The results indicated that host immunosuppression became more severe in two weeks af-ter operation and then, gradually relurned to the level before opcration—"postoperativeimmunosuppressive period". Recovery time of postoperative immunosuppressive period andimmunc function condition of host after operation were closcly correlated with HCC recurrence rate.After operation, intensive immunologic examination can provide a valuable reference for finding highrisk population with turnor rccurrence and perfonning an effective postoperative immunotherapyagainst tumor rocurrence at (?)stage. 展开更多
关键词 liver cancer immunity T LYMPHOCYTE subsets natural KILLER cells flow CYTOMETRY
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Clinical Study on General lmmunotherapy of Hepatocellular Carcinoma
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作者 郭亚军 吴孟超 +7 位作者 陈汉 刘广洛 孔宪涛 张鲁榕 郑玲莉 杨嗣坤 徐志功 叶天星 《Journal of Medical Colleges of PLA(China)》 CAS 1989年第2期111-115,共5页
In the present study,67 cases of hepatocellular carcinoma(HCC)were treated withimmunotherapy or immunochernotherapy.The results indicated that natural killer cell(NK)andantibody-dependent cytotoxicity cell(ADCC)activi... In the present study,67 cases of hepatocellular carcinoma(HCC)were treated withimmunotherapy or immunochernotherapy.The results indicated that natural killer cell(NK)andantibody-dependent cytotoxicity cell(ADCC)activities and lymphocyte transformation rate(LTR)were significantly improved in vivo after treatment.The NK activity in tumor tissue,which showed aheavy immunosuppression,could also be enhanced and recovered to normal level after treatment withlymphokine mixture and 5-fluorouracil(5-FU).Immunity of host with postoperativeimmunochemotherapy was rapidly improved and recovery vate was high.The survival time in thesecases of unresectable tumors was obviously prolonged when a general immunotherapy was used.Immunochemotherapy can impr(?)ve immunity and inhibit selectively Ts cells as well as kill directly thetremor cells;therefore,it can play an important role in the treatment of hepatocellular carcinomaand in the prevention of its recurrence after operation. 展开更多
关键词 HEPATOMA immunity IMMUNOTHERAPY LYMPHOKINE T LYMPHOCYTE subsets netural KILLER cells
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Biocharacterizations of T lymphocytes infiltrating human primary brain gliomas
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作者 李有君 朱诚 +2 位作者 张光霁 孔宪涛 张橹榕 《Journal of Medical Colleges of PLA(China)》 CAS 1992年第2期173-177,182,共6页
Glioma-infiltrating lymphocytes(GIL)were isolated from 9 surgical biopsy specimens of pri-mary brain gliomas using mechanical and enzymatic digestion and discontinuous density gradientcentfifugation.Durng culture in t... Glioma-infiltrating lymphocytes(GIL)were isolated from 9 surgical biopsy specimens of pri-mary brain gliomas using mechanical and enzymatic digestion and discontinuous density gradientcentfifugation.Durng culture in the presence of interleukin-2(IL-2)for a period of four weeks,GIL were expanded by 48.4-fold on the avea-age,even up to 118-fold.GIL activated by IL-2 hadspcific cytolytic activity against autologous glioma cells.Analysis of cell surface phenotypes offreshly isolated GIL showed that CD3^+ cells were 71.0±11.9%,CD4^+ cells 34.2±6.1% and CD8^+cells 37.0±7.6%.Ability of IL-2-activated GIL to secrete γ-interferon(γ-IFN)was significantlyhigher than that of freshly isolated GIL and autologous peripheral blood lymphocytes(PBL).Theresults suggest that GIL have many advantages as an adoptive immunotherapy for patients withgliomas and as a new type of antitumor immune effector. 展开更多
关键词 GLIOMA INTERLEUKIN-2 T subsets glioma-infiltrating LYMPHOCYTES HUMAN
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THE SUPPORT POINTS AND EXTREME POINTS OF THE UNIT BALL OF H'_P~ 1
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作者 彭志刚 《Acta Mathematica Scientia》 SCIE CSCD 1999年第2期181-189,共9页
By the author denotes the areal measure on the unit disk . Let H'p = {f(z): f(z) is analytic in D and . Let B H 'p and. This article researches the support points and extreme points of B(H'p).
关键词 Topology of uniform convergence compact subsets of unit disk Extreme point support point.
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Fixed Points of Cone Maps in Locally Convex Spaces
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作者 Liang Fanghao (Shandong University) 《Chinese Quarterly Journal of Mathematics》 CSCD 1989年第2期109-110,共2页
Guo [1] gives some fixed point theorems of cone maps in Banacb space. Here we generalize the main resnlts of [1] to a locally convex space. We remark that the approach in [1] is not applicable in our paper. Throughout... Guo [1] gives some fixed point theorems of cone maps in Banacb space. Here we generalize the main resnlts of [1] to a locally convex space. We remark that the approach in [1] is not applicable in our paper. Throughout this paper. X is a Hausdorff locally convex topological vector space over the field of real numbers, K is a closed convex 展开更多
关键词 HAUSDORFF CONVEX SUBSET generalize LOCALLY topological applicable Fixed REMARK satisfied
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Feature subset selection method for AdaBoost training
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作者 赵三元 沈庭芝 +2 位作者 孙晨升 刘朋樟 岳雷 《Journal of Beijing Institute of Technology》 EI CAS 2011年第3期399-402,共4页
The feature-selection problem in training AdaBoost classifiers is addressed in this paper. A working feature subset is generated by adopting a novel feature subset selection method based on the partial least square (... The feature-selection problem in training AdaBoost classifiers is addressed in this paper. A working feature subset is generated by adopting a novel feature subset selection method based on the partial least square (PLS) regression, and then trained and selected from this feature subset in Boosting. The experiments show that the proposed PLS-based feature-selection method outperforms the current feature ranking method and the random sampling method. 展开更多
关键词 dimensionality reduction Boosting method feature subset
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Some Properties of a Class Self-homom orphism ofBCI-algebras
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作者 袁敏英 李怡君 《Chinese Quarterly Journal of Mathematics》 CSCD 1998年第4期99-102, ,共4页
Some properties about stable subset S(θ n) and image Im(θ n) of self homomorphism \{θ n:x→0*x n\} are discussed. The characterization that Im(θ n) becomes an ideal of BCI algebra X is given.
关键词 BCI algebra self homomorphism stable subset ideal
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LF λ-subgroup Generated by LF Subset
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作者 姜保庆 程庆 任学军 《Chinese Quarterly Journal of Mathematics》 CSCD 1996年第3期72-73,共2页
In this paper .an important property layer-preserving of LF group and an concept LF λ-subgroup generated by LF subset will be introduced. On the height of LF group theory ,we recognize the concept generated subgroup ... In this paper .an important property layer-preserving of LF group and an concept LF λ-subgroup generated by LF subset will be introduced. On the height of LF group theory ,we recognize the concept generated subgroup more clearly. 展开更多
关键词 generated subgroup β-layer-preserving LF λ-subgroup generated by LF subset α-characteristic function
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SOME COMPARISON RESULTS FOR NONLINEAR INTEGRO—DIFFERENTIAL EQUATIONS IN A BANACH SPACE
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作者 Chen Yubo Zhuang Wan (Shandong Normal University) 《滨州学院学报》 1991年第4期6-9,共4页
1 Introduction and preliminaries Let E be a real Banach space with the norm‖·‖and E~* denote the dual of E.Let KE be a cone,that is,a closed convex subset such that λKK for every λ】0 and {K}∩{-K}={0},wh... 1 Introduction and preliminaries Let E be a real Banach space with the norm‖·‖and E~* denote the dual of E.Let KE be a cone,that is,a closed convex subset such that λKK for every λ】0 and {K}∩{-K}={0},where 0 is 展开更多
关键词 preliminaries convex SPACE guaranteed SUBSET LEMMA interior Zhuang MAXIMAL DIFFERENTIABLE
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