期刊文献+
共找到8篇文章
< 1 >
每页显示 20 50 100
Adaptive optimization of agile organization of command and control resource 被引量:8
1
作者 Yang Chunhui Liu Junxian +1 位作者 Chen Honghui Luo Xueshan 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2009年第3期558-564,共7页
Adaptive optimization is one of the means that agile organization of command and control resource (AOC2R) adapts for the dynamic battlefield environment. A math model of the adaptive optimization of AOC2R is put for... Adaptive optimization is one of the means that agile organization of command and control resource (AOC2R) adapts for the dynamic battlefield environment. A math model of the adaptive optimization of AOC2R is put forward by analyzing the interrelating concept and research. The model takes the adaptive process as a multi-stage decision making problem. The 2-phases method is presented to calculate the model, which obtains the related parameters by running the colored Petri net (CPN) model of AOC2R and then searches for the result by ant colony optimization (ACO) algorithm integrated with genetic optimization techniques. The simulation results demonstrate that the proposed algorithm greatly improves the performance of AOC2R. 展开更多
关键词 command and control organization adaptive optimization of organization dynamic-window-search ant colony optimization 3-phase organizational design.
下载PDF
Highly Efficient and Stable Hybrid White Organic Light Emitting Diodes with Controllable Exciton Behavior by a Mixed Bipolar Interlayer
2
作者 侯媛媛 李江红 +3 位作者 冀晓翔 吴亚锋 范玮 Igbari Femi 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第7期170-173,共4页
Highly efficient and stable hybrid white organic light-emitting diodes (HWOLEDs) with a mixed bipolar interlayer between fluorescent blue and phosphorescent yellow emitting layers are demonstrated. The bipolar inter... Highly efficient and stable hybrid white organic light-emitting diodes (HWOLEDs) with a mixed bipolar interlayer between fluorescent blue and phosphorescent yellow emitting layers are demonstrated. The bipolar interlayer is a mixture of p-type diphenyl (l0-phenyl-lOH-spiro [acridine-9,9'-fluoren]-3Lyl) phosphine oxide and n-type 2',2- (1,3,5-benzinetriyl)-tris(1-phenyl-l-H-benzimidazole). The electroluminance and Commission Internationale de l'Eclairage (CIE1931) coordinates' characteristics can be modulated easily by adjusting the ratio of the hole- predominated material to the electron-predominated material in the interlayer. The hybrid WOLED with a p-type:n-type ratio of 1:3 shows a maximum current efficiency and power efficiency of 61.1 ed/A and 55.8 lm/W, respectively, with warm white CIE coordinates of (0.34, 0.43). The excellent efficiency and adaptive CIE coordi- nates are attributed to the mixed interlayer with improved charge carrier balance, optimized exciton distribution, and enhanced harvesting of singlet and triplet excitons. 展开更多
关键词 with is of by Highly Efficient and Stable Hybrid White Organic Light Emitting Diodes with controllable Exciton Behavior by a Mixed Bipolar Interlayer in
下载PDF
A Retrospective Study of Impact of PPTCT on HIV Trends, Maternal and Perinatal Outcome
3
作者 Anjali Malhotra Sumitra Yadav 《World Journal of AIDS》 2016年第4期178-185,共8页
Background: Women diagnosed with HIV/AIDS may transmit the infection to their child during pregnancy. The infection may spread during pregnancy, childbirth, or breastfeeding. However, the risk of mother-to-child trans... Background: Women diagnosed with HIV/AIDS may transmit the infection to their child during pregnancy. The infection may spread during pregnancy, childbirth, or breastfeeding. However, the risk of mother-to-child transmission of HIV may be reduced by the use of HIV medications known as antiretroviral therapy (ART). Infection with HIV/AIDS is not a contraindication to pregnancy. Some women are unaware they have the disease until they become pregnant. In this case, they should begin antiretroviral therapy as soon as possible [1]. With the appropriate treatment, the risk of mother-to-child infection can be reduced to below 1% [2]. Without treatment, the risk of transmission is 15% - 45% [3]. Objective: The main aim of the study is to appreciate the declining trend of HIV in babies with HIV positive mother by implementation of PPTCT services. Methods: A retrospective study of detection of HIV positive mothers among all the antenatal patients attending OPD and including the patients coming in Emergency services and delivered in Department of Obstetrics and Gynecology at MGMMC & M. Y. Hospital, Indore, Madhya Pradesh (India) from Jan 2006 to Dec 2015 was included in the study. They were screened for HIV status and further management of all HIV positive patients. 展开更多
关键词 Antiretroviral Therapy (ART) National AIDS control organization (NACO) Nevirapine (NVP) Prevention of Parent to Child Transmission (PPTCT)
下载PDF
论科技经济一体化的自组织机制 被引量:5
4
作者 袁道焰 《系统科学学报》 1998年第1期62-65,73,共5页
用系统科学的理论和方法,从纵横两个不同角度论述了科技与经济之间相互作用的关系,研究了科技经济一体化的自组织性和控制调节机制,揭示了科技经济一体化的演化规律.
关键词 科技经济一体化 自组织性 控制调节
下载PDF
Hippo signaling:A hub of growth control,tumor suppression and pluripotency maintenance 被引量:13
5
作者 Mengxin Yin Lei Zhang 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2011年第10期471-481,共11页
The molecular mechanisms of organ size control and regulation remain one of the major unsolved mysteries of development biology. Almost a decade ago, the discovery of the Hippo signaling pathway in Drosophila shed som... The molecular mechanisms of organ size control and regulation remain one of the major unsolved mysteries of development biology. Almost a decade ago, the discovery of the Hippo signaling pathway in Drosophila shed some light on this puzzling issue. The Hippo signaling pathway is highly conserved in both invertebrates and vertebrates, and plays critical roles in animal development. It controls organ size and growth by inhibiting cell proliferation and by promoting apoptosis. Malfunction of the Hippo signaling pathway leads to cancer development and tumorigenesis. Although the core of the signaling pathway is well understood, the upstream inputs and downstream transcriptional regulation are still obscure to us. In this review, we summarize the current understanding of the mechanism and the function of the Hippo signaling pathway and compare its differences between flies and mammals. We underline the crosstalk between the Hippo signaling pathway and other signaling pathways, and the possible roles of the Hippo pathway in stem cell proliferation and self-renewal. 展开更多
关键词 Cell signaling Crosstalk Development DROSOPHILA HIPPO Organ size control Stem cell TUMORIGENESIS
原文传递
In situ-prepared homogeneous supramolecular organic framework drug delivery systems(sof-DDSs):Overcoming cancer multidrug resistance and controlled release 被引量:5
6
作者 Jia Tian Chi Yao +6 位作者 Wen-Lin Yang Lei Zhang Dan-Wei Zhang Hui Wang Fan Zhang Yi Liu Zhan-Ting Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2017年第4期798-806,共9页
Water-soluble three-dimensional porous supramolecular organic frameworks(SOFs) have been demonstrated as a new generation of homogeneous polycationic platforms for anti-cancer drug delivery.The new SOF drug delivery... Water-soluble three-dimensional porous supramolecular organic frameworks(SOFs) have been demonstrated as a new generation of homogeneous polycationic platforms for anti-cancer drug delivery.The new SOF drug delivery systems(sof-DDSs) can adsorb dianionic pemetrexed(PMX),a clinically used chemotherapeutic agent instantaneously upon dissolving in water,which is driven by both electrostatic attraction and hydrophobicity.The in situ-prepared PMX@SOFs are highly stable and can avoid important release of the drug during plasm circulation and overcome the multidrug resistance of human breast MCF-7/Adr cancer cells to enter the cancer cells.Acidic microenvironment of cancer cells promotes the release of the drug in cancer cells.Both in vitro and in vivo studies have revealed that sofDDSs considerably improve the treatment efficacy of PMX,leading to 6-12-fold reduction of the IC50 values,as compared with that of PMX alone.The new drug delivery strategy omits the loading process required by most of reported nanoparticle-based delivery systems and thus holds promise for future development of low-cost drug delivery systems 展开更多
关键词 Supramolecular organic framework In situ preparation Drug delivery controlled release Pemetrexed Human breast cancer Multidrug resistance
原文传递
Assemblies of covalent organic framework microcrystals:multiple-dimensional manipulation for enhanced applications 被引量:5
7
作者 Fuyu Yuan Jing Tan Jia Guo 《Science China Chemistry》 SCIE EI CAS CSCD 2018年第2期143-152,共10页
Covalent organic frameworks (COFs) are well known as the next generation of shape-persistent zeolite analogues, which have brought new impetus to the development of porous organic materials as well as two-dimensional ... Covalent organic frameworks (COFs) are well known as the next generation of shape-persistent zeolite analogues, which have brought new impetus to the development of porous organic materials as well as two-dimensional polymers. Since the advent of COFs in 2005, many striking findings have definitely proven their great potentials expanding applications across energy,environment and healthcare fields. With thorough exploration over a decade, research interest has been drawn on the scientific challenges on chemistry, while making full play of COF values has remained far from satisfactory yet. Thus opening an avenue to modulating COF assemblies on the multi-scale is no longer just an option, but a necessity for matching the application requirements with enhanced performances. In this mini-review, we summarize the recent progress on design of nanoscale COFs with varying forms. Detailed description is concentrated on the synthetic strategies of COF assemblies such as spheres, fibers,tubes, coatings and films, thereby shedding light on the flexible manipulation over dimensions, compositions and morphologies.Meanwhile, the advanced applications of nanoscale COFs have been discussed here with comparison of their bulky counterparts. 展开更多
关键词 covalent organic frameworks controllable synthesis porous materials nanoscale
原文传递
Growth suppressor lingerer regulates bantam microRNA to restrict organ size
8
作者 Liang Dong Jinhui Li +8 位作者 Hongling Huang Meng-Xin Yin Jinjin Xu Peixue Li Yi Lu Wenqing Wu Hang Yang Yun Zhao Lei Zhang 《Journal of Molecular Cell Biology》 SCIE CAS CSCD 2015年第5期415-428,共14页
The evolutionarily conserved Hippo signaling pathway plays an important role in organ size control by regulating cell proliferation and apoptosis.Here,we identify Lingerer(Lig)as a growth suppressor using RNAi modifyi... The evolutionarily conserved Hippo signaling pathway plays an important role in organ size control by regulating cell proliferation and apoptosis.Here,we identify Lingerer(Lig)as a growth suppressor using RNAi modifying screen in Drosophila melanogaster.Loss of lig increases organ size and upregulates bantam(ban)and the expression of the Hippo pathway target genes,while overexpression of lig results in diminished ban expression and organ size reduction.We demonstrate that Lig C-terminal exhibits dominant-negative function on growth and ban expression,and thus plays an important role in organ size control and ban regulation.In addition,we provide evidence that both Yki and Mad are essential for Lig-induced ban expression.We also show that Lig regulates the expression of the Hippo pathway target genes partially via Yorkie.Moreover,we find that Lig physically interacts with and requires Salvador to restrict cell growth.Taken together,we demonstrate that Lig functions as a critical growth suppressor to control organ size via ban and Hippo signaling. 展开更多
关键词 lingerer HIPPO SALVADOR Yorkie MAD organ size control bantam
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部