检索结果-南通市图书馆

Transitivity of varietal hypercube networks

在线全文

学校读者我要写书评

暂无评论

Frontiers of Mathematics in China 2014年第6期9卷 1401-1410页

作者： li XIAO jin CAO jun-Ming XU School of Mathematical Sciences University of Science and Technology of ChinaWentsun Wu Key Laboratory of CAS Hefei 230026 China

The varietal hypercube VQn is a variant of the hypercube Qn and has better properties than Qn with the same number of edges and vertices. This paper proves that VQn is vertex-transitive. This property shows that when VQn is used to model an interconnection network, it is high symmetrical and obviously superior to other variants of the hypercube such as the crossed cube.

关键词： Combinatorics graph transitivity varietal hypercube network

Biological sulfate removal from acrylic fiber manufacturing wastewater using a two-stage UASB reactor

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2012年第2期24卷 343-350页

作者： jin li jun Wang Zhaokun Luan Zhongguang Ji lian Yu State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

A two-stage UASB reactor was employed to remove sulfate from acrylic fiber manufacturing *** operation（35±0.5℃） was performed with hydraulic retention time（HRT） varied between 28 and 40 *** liquor suspended solids（MLSS） in the reactor was maintained about 8000 mg/*** results indicated that sulfate removal was enhanced with increasing the ratio of COD/SO24-.At low COD/SO42-,the growth of the sulfate-reducing bacteria（SRB） was *** optimal sulfate removal efficiencies were 75% when the HRT was no less than 38 *** mainly happened in the sulfate-reducing stage,while methanogenesis in the methane-producing *** in sulfate-reducing stage performed granulation better than that in methaneproducing *** extracellular polymeric substances（EPS） content in sulfate-reducing stage helped to adhere and connect the flocculent sludge particles *** accounted for about 31% both in sulfate-reducing stage and methane-producing stage at COD/SO42-ratio of 0.5,while it dropped dramatically from 34% in sulfate-reducing stage to 10% in methane-producing stage corresponding to the COD/SO42-ratio of *** and MPA were predominant in sulfate-reducing stage and methane-producing stage respectively.

关键词： a two-stage UASB reactor sulfidogenesis granule fluorescence in situ hybridization(FISH)

Dynamic Behavior of Entanglement Between Two Spatially Separated Atoms in Two Dissipative and Driven Cavity Fields

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2009年第3期51卷 509-513页

作者： CUI Hui-Ping li Jian liU jin li jun-Gang Department of Physics School of Science Beijing Institute of Technology Beijing 100081 China

We consider two two-level atoms, interacting with two independent dissipative cavities, each of which is driven by an external source. The two cavity fields are both initially prepared in the coherent states, and the two two-level atoms are initially prepared in the singlet state ｜ψ^-〉 =（｜eg〉 - ｜ge〉） / √2. We investigate the influence of the damping constant n, the intensity of the external sources F, and the relative difference of the atomic couplings r on the entanglement between the two atoms. In the dispersive approximation, we find that the entanglement between the two atoms decreases with the time evolution, and the decreasing rate of entanglement depends on the values of F/k, k/ω, and r. For the given small values of F/k and k/ω, on the one hand, the increasing of r favors entanglement decreasing of the atomic system, on the other hand, when r → 1 the entanglement decreasing becomes slower. With the increasing of the value of k/ω, the influence of r on the decreasing rate of entanglement becomes smaller, and gradually disappears for the big value of k/ω.

关键词： entanglement dissipation driven field

Effect and Functional Mechanism of the Action of Exogenous Gibberellin on Flowering of Peach

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences in China 2008年第11期7卷 1324-1332页

作者： AN li-jun jin liang YANG Chun-qin li Tian-hong Department of Fruit Science College of Agronomy and Biotechnology China Agricultural University Beijing 100193 P.R. China

This study was conducted to assess the effect of gibberellin and its possible mechanism of action on peach flower formation. At flower induction, 100 mg L^-1 of gibberellic acid 3 （GA3） was sprayed on the leaves of peach [Prunus persica （L.） Batsch.] cv. Bayuecui. Using anatomy, immunohistochemistry, and semi-quantitation, the in situ distribution of GAs and the expression of the key genes involved in peach flower formation in the apical meristem were studied during flowering differentiation. The results showed that induction of flowering in the Bayuecui peach occurred prior to 10 July in Beijing, China. Flower induction and further differentiation of the peach flower organs were significantly inhibited by leaf-spraying of GA3 at a concentration of 100 mg L^-1 during the induction stage. The flowering rate was only 11.67% after treatment. The distribution of GA1 in the apical meristem varied during the process of flower bud differentiation. From 13 june to 25 July, the GA1 signal from control plants was detected mainly in the vascular bundles at the base of the flower buds. No GA1 signal was detected in the apical meristem. After treatment with GA3, the distribution was similar to that of the control from 13 june to 3 July. On 13 July, a GA1 signal was detected in the apical meristem accompanied by an increase in the GA1 signal in the vascular bundles at the base of the flower buds. The GA1 signal weakened significantly in both the vascular bundles and the apical meristem on 25 July. The expression of the genes PpLEAFY and MADS6 in flower buds could be detected only on 10 October in the GA3-treated plants. The critical period for flower induction of Bayuecui peach in Beijing was in early July, during which time, leaf-spraying with 100 mg L-1 GA3 could effectively inhibit flower induction and further differentiation of the flower buds. GA1 in the gibberellin family was the suppressor for flower induction in peach. Its action was affected by the stage of flower bud di

关键词： peach [Prunus persica (L.) Batsch.] gibberellin flowering induction anatomy immunohistochemistry semiquantitation RT-PCR

Monotropein Induced Apoptosis and Suppressed Cell Cycle Progression in Colorectal Cancer Cells

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2024年第1期30卷 25-33页

作者： GAO Quan li lin ZHANG Qi-man SHENG Qin-song ZHANG Ji-liang jin li-jun SHANG Rui-yan School of Pharmacy and Department of Medical Oncology the Affiliated Hospital of Hangzhou Normal UniversityHangzhou Normal UniversityHangzhou(311121)China Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines Engineering Laboratory of Development and Application of Traditional Chinese MedicinesCollaborative Innovation Center of Traditional Chinese Medicines of Zhejiang ProvinceHangzhou Normal UniversityHangzhou(311121)China Department of Colorectal Surgery the First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouChina Beijing Tong Ren Tang Chinese Medicine Co. Ltd.Beijing(100000)China Department of Traditional Chinese Medicine Hangzhou Shangcheng District People's HospitalHangzhou(310006)China Department of Gynecology Hangzhou Women's HospitalHangzhou(310008)China

Objective: To determine whether monotropein has an anticancer effect and explore its potential mechanisms against colorectal cancer(CRC) through network pharmacology and molecular docking combined with experimental verification. Methods: Network pharmacology and molecular docking were used to predict potential targets of monotropein against CRC. Cell counting kit assay, plate monoclonal assay and microscopic observation were used to investigate the antiproliferative effects of monotropein on CRC cells HCT116, HT29 and LoVo. Flow cytometry and scratch assay were used to analyze apoptosis and cell cycle, as well as cell migration, respectively in HCT116, HT29, and LoVo cells. Western blotting was used to detect the expression of proteins related to apoptosis, cell cycle, and cell migration, and the expression of proteins key to the Akt pathway. Results: The Gene Ontology and Reactome enrichment analyses indicated that the anticancer potential of monotropein against CRC might be involved in multiple cancer-related signaling pathways. Among these pathways, RAC-beta serine/threonine-protein kinase(Akt1, Akt2), cyclin-dependent kinase 6(CDK6), matrix metalloproteinase-9(MMP9), epidermal growth factor receptor(EGFR), cell division control protein 42 homolog(CDC42) were shown as the potential anticancer targets of monotropein against CRC. Molecular docking suggested that monotropein may interact with the 6 targets(Akt1, Akt2, CDK6, MMP9, EGFR, CDC42). Subsequently, cell activity of HCT116, HT29 and LoVo cell lines were significantly suppressed by monotropein(PlinD1, CDK4 and CDK6, inhibited cell migration by suppressing the expressions of CDC42 and MMP9(Pling pathway. Conclusions: Monotropein exerts its antitumor

关键词： monotropein Chinese medicine anticancer activity colorectal cancer cells network pharmacology

Research on the influence of action between fin and anti-rolling tank on the integrated stabilization effect

在线全文

学校读者我要写书评

暂无评论

Journal of Marine Science and Application 2007年第1期6卷 9-14页

作者： YU li-jun jin Hong-zhang WANG Hui YANG Sheng College of Automation Harbin Engineering University Harbin 150001 China

Through analyzing the roll model of the integrated system of fin and anti-rolling tank, this paper uses binomial equation to simplify the module and check how the approximate parameters simulate the original function. Based on the simplified module, the influence of fin and anti-rolling tank on the coefficient items of the roll module is discussed, and the influencing factors between fin and anti-rolling tank are analysed. And through simulation, the influence of action between fin and anti-rolling tank on the static characteristics, and the integrated stabilization effect, are analyzed.

关键词： fin stabilizer anti-rolling tank integrated stabilization action each other influence

Analysis of factors potentially predicting prognosis of colorectal cancer

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2019年第12期11卷 1206-1217页

作者： li-jun jin Wei-Bin Chen Xiao-Yu Zhang Jie Bai Hao-Chen Zhao Zun-Yi Wang Department of Surgical Oncology(DivisionⅢ) Cangzhou Central HospitalCangzhou 061001Hebei ProvinceChina Department of Radiology North China University of Science and Technology Affiliated HospitalTangshan 063000Hebei ProvinceChina Department of Anesthesiology(Division II) Cangzhou Central HospitalCangzhou 061001Hebei ProvinceChina

BACKGROUND Accurate assessment of the prognosis after colorectal cancer surgery is of great significance in patients with colorectal ***,there is no systematic analysis of factors affecting the prognosis of colorectal cancer *** To systematically analyze the influence of clinical data and serological and histological indicators on the prognosis of patients with colorectal cancer,and to explore the indicators that can accurately assess the prognosis of patients with colorectal *** A total of 374 patients with colorectal cancer were *** clinical data,tumor-node-metastasis(TNM)stage,and Dukes stage were *** patients received examinations including carcinoembryonic antigen(CEA),carbohydrate antigen 199,C-reactive protein,albumin,D-dimer,and fibrinogen as well as routine blood tests one week before *** tumor location,size,depth of invasion,lymph node metastasis,and distant metastasis were recorded during *** pathological tissue typing and expression of proliferating cell nuclear antigen(PCNA)and p53 were *** patients were followed for 3 years,and patients with endpoint events were defined as a poor prognosis group,and the remaining patients were defined as a good prognosis *** differences in clinical data,serology,and histology were analyzed between the two *** COX regression was used to analyze the independent influencing factors for the prognosis of colorectal *** receiver operating characteristic curve was used to evaluate the predictive value of each of the independent influencing factors and their combination for the prognosis of colorectal *** The follow-up outcomes showed that 81 patients were in the good prognosis group and 274 patients in the poor prognosis *** TNM stage,PCNA,Glasgow prognostic score(GPS),neutrophil-lymphocyte ratio(NLR),C-reactive protein/albumin ratio(CAR),D-dimer,and CEA were independent influencing factors for the prognosi

关键词： Colorectal cancer Prognosis Influencing factors Combination assessment

HIF-2α regulates CD44 to promote cancer stem cell activation in triple-negative breast cancer via PI3K/AKT/mTOR signaling

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Stem Cells 2020年第1期12卷 87-99页

作者： Jie Bai Wei-Bin Chen Xiao-Yu Zhang Xiao-Ning Kang li-jun jin Hui Zhang Zun-Yi Wang Thyroid and Breast Deptartment III Cangzhou Central HospitalCangzhou 061001Hebei ProvinceChina Department of Radiology North China University of Science and Technology Affiliated HospitalTangshan 063000Hebei ProvinceChina Department of Second Ultrasound Cangzhou Central HospitalCangzhou 061001Hebei ProvinceChina

BACKGROUND Breast cancer is a common malignant tumor that seriously threatens women’s *** cancer stem cell(CSC)-like cell population may be the main factor for breast cancer ***,targeted therapy for CSCs has great potential ***-inducible factor is a transcription factor widely expressed in *** have shown that down-regulation of the hypoxia signaling pathway inhibits tumor stem cell self-renewal and increases the sensitivity of stem cells to radiotherapy and chemotherapy mediated by hypoxiainducible factor-2α(HIF-2α).However,the specific mechanism remains unclear and further research is *** To investigate the effect of HIF-2αdown-regulation on stem cell markers,microsphere formation,and apoptosis in breast cancer cell line MDA-MB-231 under hypoxia and its possible *** Immunohistochemistry was used to detect the expression of HIF-2αand CD44 in triple-negative breast cancer(TNBC)and non-TNBC ***-labeling immunofluorescence was applied to detect the co-expression of HIF-2αand CD44 in MDA-MB-231 cells and MCF-7 ***-2αwas silenced by RNA interference,and the expression of CD44 and transfection efficiency were detected by real-time fluorescent quantitative ***,flow cytometry,TdT-mediated X-dUTP nick end labeling,and mammosphere formation assays were used to evaluate the effect of HIF-2αon CSCs and *** possible mechanisms were analyzed by Western *** The results of immunohistochemistry showed that HIF-2αwas highly expressed in both TNBC and non-TNBC,while the expression of CD44 in different molecular types of breast cancer cells was *** in vitro experiments,it was found that HIF-2αand CD44 were expressed almost in the same *** with hypoxia+negative-sequence control,HIF-2αsmall interfering ribonucleic acid transfection can lower the expression of HIF-2αand CD44 mRNA(P<0.05),increase the percentage of apoptotic cells(P<0.05),and resulte

关键词： Breast cancer Hypoxia-inducible factor-2α Cancer stem cells CD44

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

山西夏季气溶胶空间分布飞机观测研究

中国环境科学 2014年第8期34卷 1950-1959页

作者：李军霞银燕李培仁李润君晋立军李劲南京信息工程大学中国气象局气溶胶-云-降水重点开放实验室江苏南京210044 山西省人工降雨防雹办公室山西太原030032 北京师范大学全球变化与地球系统科学研究院北京100875 安徽省气象台安徽合肥230031

以搭载了多种气溶胶观测仪器的飞机为观测平台,在2013年夏季首次对山西中部地区霾日及晴空大气气溶胶空间分布特性进行了观测,得到气溶胶粒子数浓度和尺度的垂直分布廓线以及不同高度气溶胶粒子谱分布特征.研究发现,山西夏季非降水天气... 详细信息

以搭载了多种气溶胶观测仪器的飞机为观测平台,在2013年夏季首次对山西中部地区霾日及晴空大气气溶胶空间分布特性进行了观测,得到气溶胶粒子数浓度和尺度的垂直分布廓线以及不同高度气溶胶粒子谱分布特征.研究发现,山西夏季非降水天气条件下气溶胶粒子以核模态和积聚模态的细粒子为主,粗粒子很少.霾日气溶胶数浓度是晴空的2∽3倍,主要是核模态的小粒子;气溶胶粒子数浓度随着高度逐渐减小,低空存在气溶胶累积区,逆温层的存在是导致气溶胶累积区形成的主要原因;气溶胶粒子尺度随高度增加,大粒子主要分布在2500m以上的高空;不同高度上的气溶胶粒子谱均呈双峰或三峰分布,谱型基本一致,从近地面到5000m高空,气溶胶粒子谱随高度的增加略有展宽.观测区域气团后向轨迹模拟结果显示,4000m以上高空气溶胶粒子主要是从中国西北地区远距离输送而来,3000m以下气溶胶粒子则主要来源于近地面排放.

关键词：气溶胶特性飞机观测山西地区