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Consistent and Specific Multi-View Functional Brain Networks Fusion for Autism Spectrum Disorder Diagnosis
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作者 Chaojun zhang Chengcheng Wang +1 位作者 limei zhang Yunling Ma 《Journal of Applied Mathematics and Physics》 2023年第7期1914-1929,共16页
Functional brain networks (FBN) based on resting-state functional magnetic resonance imaging (rs-fMRI) have become an important tool for exploring underlying organization patterns in the brain, which can provide an ob... Functional brain networks (FBN) based on resting-state functional magnetic resonance imaging (rs-fMRI) have become an important tool for exploring underlying organization patterns in the brain, which can provide an objective basis for brain disorders such as autistic spectrum disorder (ASD). Due to its importance, researchers have proposed a number of FBN estimation methods. However, most existing methods only model a type of functional connection relationship between brain regions-of-interest (ROIs), such as partial correlation or full correlation, which is difficult to fully capture the subtle connections among ROIs since these connections are extremely complex. Motivated by the multi-view learning, in this study we propose a novel Consistent and Specific Multi-view FBNs Fusion (CSMF) approach. Concretely, we first construct multi-view FBNs (i.e., multiple types of FBNs modelling various relationships among ROIs), and then these FBNs are decomposed into a consistent representation matrix and their own specific matrices which capture their common and unique information, respectively. Lastly, to obtain a better brain representation, it is fusing the consistent and specific representation matrices in the latent representation spaces of FBNs, but not directly fusing the original FBNs. This potentially makes it more easily to find the comprehensively brain connections. The experimental results of ASD identification on the ABIDE datasets validate the effectiveness of our proposed method compared to several state-of-the-art methods. Our proposed CSMF method achieved 72.8% and 76.67% classification performance on the ABIDE dataset. 展开更多
关键词 Functional Brain Network FUSION CONSISTENCY SPECIFICITY Autism Spectrum Disorder
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Estimating Brain Functional Networks Based on Spatiotemporal Higher-Order Correlations for Autism Identification
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作者 Mengxue Pang limei zhang +2 位作者 Xueyan Liu Tinglin zhang Shufeng Zhou 《Journal of Computer and Communications》 2023年第8期149-164,共16页
Brain functional network (BFN) has become an important tool for the analysis and diagnosis of brain diseases, and how to build a high-quality BFN based on resting-state functional magnetic resonance imaging (rs-fMRI) ... Brain functional network (BFN) has become an important tool for the analysis and diagnosis of brain diseases, and how to build a high-quality BFN based on resting-state functional magnetic resonance imaging (rs-fMRI) has become a growing concern in the neuroscience community. Although some methods have been proposed to construct a high-quality BFN, they only encode the spatial characteristics of the ROIs, ignoring the temporal characteristics. As a result, it becomes challenging to accurately capture the true state of the brain. To address this problem, we propose a novel method to construct a higher-order BFN, considering both temporal and spatial domain characteristics. In particular, we get the characteristics of the temporal domain by differentiating the rs-fMRI signal itself, and then we integrate the information of the spatial domain and temporal domain to build a high-order BFN. To evaluate the proposed method, we conduct our experiments on ABIDE database to identify subjects with Autism Spectrum Disorder (ASD) from normal controls. Experimental results show that our method can achieve higher performance than baseline methods. 展开更多
关键词 Functional MRI HOFN DIFFERENCE Autism Spectrum Disorder
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Analysis of the Current Status and Influencing Factors of the Readiness for Discharge of Patients after Prostate Cancer Surgery Based on the Concept of Enhanced Recovery after Surgery (ERAS) 被引量:3
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作者 Youdi Cai limei zhang +4 位作者 Kun Bao Huan Jian Jinhong Zhong Yuanyuan Huang Limin Liang 《Open Journal of Nursing》 2021年第12期1086-1097,共12页
<strong>Objective</strong> To investigate the level of readiness for discharge of patients after prostate cancer surgery based on the concept of Enhanced Recovery After Surgery (ERAS), and to explore its i... <strong>Objective</strong> To investigate the level of readiness for discharge of patients after prostate cancer surgery based on the concept of Enhanced Recovery After Surgery (ERAS), and to explore its influencing factors, so as to provide references for improving the readiness for discharge of patients after prostate cancer surgery. <strong>Methods </strong>The general information questionnaire, the discharge preparation scale, and the discharge guidance quality scale were used to investigate 119 patients discharged from the urological surgery department of a tertiary A-level hospital in Guangzhou after radical prostatectomy. <strong>Results </strong>The total score of discharge readiness of patients after radical prostatectomy was 147.74 ± 35.71 points, which was at a lower middle level and the total score of discharge guidance quality was 180.68 ± 38.91 points, which was at a medium level. Multiple linear regression analysis showed that education level, family monthly income, Gleason score, whether to perform lymphatic dissection, whether to discharge with a urinary catheter, and the quality of discharge guidance were the main factors influencing the readiness for discharge of patients after prostate cancer surgery. <strong>Conclusion </strong>In clinical nursing work, it is necessary to implement individualized health education according to the characteristics and needs of different patients to improve the level of preparation for discharge of patients after prostate cancer surgery. 展开更多
关键词 Prostate Cancer Readiness for Discharge Quality of Discharge Guidance Analysis of Influencing Factors
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Relationship between Cr-Al Interaction and the Performance of Cr-Al<sub>2</sub>O<sub>3 </sub>Catalysts for Isobutane Dehydrogenation 被引量:1
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作者 Deren Fang Jinbo Zhao +3 位作者 Shang Liu limei zhang Wanzhong Ren Huimin zhang 《Modern Research in Catalysis》 2015年第2期50-58,共9页
A series of catalysts were prepared using the kneading molding method and the impregnation method as well as the dry mix method by using different raw materials. By using X-ray diffraction (XRD), X-ray photoelectron s... A series of catalysts were prepared using the kneading molding method and the impregnation method as well as the dry mix method by using different raw materials. By using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed reduction (TPR) techniques, we studied the relationship between the catalyst performance and the Cr-Al interaction in the catalytic dehydrogenation of isobutane. The results demonstrated that the Cr-Al interaction in the catalyst had a direct influence on the catalytic activity and the selectivity of isobutene. The catalysts prepared using the kneading molding method had higher catalytic activity and isobutene selectivity than those prepared using the dry mix method. By comparison, XRD, XPS, and TPR results showed that the greater the Cr-Al interaction in the catalyst was, the higher the catalytic activity was. Here, we propose a mechanism of isobutane dehydrogenation. 展开更多
关键词 ISOBUTANE DEHYDROGENATION Cr/Al2O3 CR-AL INTERACTION Catalyst Mechanism
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Inducing Adventitious Buds from Tomato Callus and Their Rooting
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作者 limei zhang 《Agricultural Biotechnology》 CAS 2012年第1期27-28,33,共3页
[ Objective] The aim was to establish efficient regeneration system of tomato so as to study the genetic transformation of chloroplast in tomato. [ Meth- od] The tomato seeds were sterilized and cultured into plantlet... [ Objective] The aim was to establish efficient regeneration system of tomato so as to study the genetic transformation of chloroplast in tomato. [ Meth- od] The tomato seeds were sterilized and cultured into plantlets. Then, the leaves were cut from plantlets and placed in the MS with 3.0 mg/L 6-BA + 0.3 mg/L IAA to induce callus. Finally, the effect of different hormones and concentrations on induction of adventitious buds from tomato callus and rooting was compared. [Result] The best medium for the induction of differentiation of adventitious buds from callus was: MS + 2.0 mg/L 6-BA + 0.3 mg/L sugar. The best medium for rooting was: 1/2MS + 1.0 mg/L IAA. [ Conclusion] Appropriate sdection of hormone concentrations is the key to establish efficient regeneration system for tomato. 展开更多
关键词 TOMATO Tissue culture CALLUS Adventitious buds ROOTING
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不断提升国有企业党的政治优势和组织优势——以中国石油管道局工程有限公司第四分公司为例
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作者 庄光伟 史扬 +2 位作者 张丽梅 杨婕 张亚琴 《石油天然气学报》 CAS 2018年第3期61-64,共4页
中国石油管道局工程有限公司第四分公司党委,把握“立根铸魂、固本培元”这一关键,坚持从基本组织、基本制度、基本队伍入手,以党章为遵循、以党纪为准绳,通过持续推进“两学一做”学习教育,抓住党支部这个“根本”,激发广大党员... 中国石油管道局工程有限公司第四分公司党委,把握“立根铸魂、固本培元”这一关键,坚持从基本组织、基本制度、基本队伍入手,以党章为遵循、以党纪为准绳,通过持续推进“两学一做”学习教育,抓住党支部这个“根本”,激发广大党员的“元气”,夯实党建工作基础、发挥党组织核心作用,不断将党的政治优势和组织优势转化为竞争优势,保障了企业的稳健发展。 展开更多
关键词 党建工作 政治优势 组织优势
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“五书一表”抓实石油管道企业党建工作
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作者 张昊 李秀玲 +2 位作者 张丽梅 张韬 何奇隆 《石油天然气学报》 CAS 2018年第2期124-128,共5页
深抓党风廉政建设和反腐败工作,推进“两个责任”落实,中国石油管道局工程有限公司第四分公司(以下简称管道四公司)创新实施了“五书一表”工作制度.推进“五书一表”工作制度落实,坚持用责任书明晰廉政任务和责任,用公开承诺书强化... 深抓党风廉政建设和反腐败工作,推进“两个责任”落实,中国石油管道局工程有限公司第四分公司(以下简称管道四公司)创新实施了“五书一表”工作制度.推进“五书一表”工作制度落实,坚持用责任书明晰廉政任务和责任,用公开承诺书强化自我约束和群众监督,用警示告知书加强教育警示,用签字背书完善责任倒查机制,用监察建议书深化责任追究,用党风廉政建设风险识别与防范对策表实现对廉政风险经常性、常态化、预防式管控,确保党风廉政和反腐败全过程管控,实现了管道四公司全面从严治党、廉洁从业的相关要求. 展开更多
关键词 党建工作 “五书一表” 石油管道企业
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The λ-Characteristics of the Ring Laser Based on Non-Uniform SOA
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作者 Zhi Wang limei zhang +1 位作者 Yingfeng Liu Lanlan Liu 《Journal of Computer and Communications》 2013年第7期54-58,共5页
Semiconductor optical amplifier-based ring cavity laser (SOA-RL), which has been widely used in optical communications, optical fiber sensing, and biophotonics fields, can be tuned at an ultra high speed up to Mega He... Semiconductor optical amplifier-based ring cavity laser (SOA-RL), which has been widely used in optical communications, optical fiber sensing, and biophotonics fields, can be tuned at an ultra high speed up to Mega Hertz over 100 nm bandwidth range with high SNR and flatness output. A steady-state model and segmentation algorithms are employed to investigate the gain spectra of four kinds of non-uniform SOA and the lasing wavelength of the SOA-RL. It shows that the dependence of the lasing wavelength on the average width is stronger when the light propagates from narrower to wider end than conversely, and there are some particular structures to show ultra high stability lasing wavelength. It is supposed that the main reason could be the carrier density distribution along the propagation. 展开更多
关键词 SEMICONDUCTOR Optical AMPLIFIER NON-UNIFORM RING Laser GAIN
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Description of the FDML Laser with Quasi-steady State Model of the SOA
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作者 Zhi Wang limei zhang +3 位作者 Lanlan Liu Zhenchao Sun Yingfeng Liu Fu Wang 《Optics and Photonics Journal》 2013年第2期61-65,共5页
Experiments and simulations demonstrate that an SOA-based ring cavity can operate as a tunable laser, wavelength- swept laser or Fourier-domain-mode-locking laser according to the relation between the roundtrip freque... Experiments and simulations demonstrate that an SOA-based ring cavity can operate as a tunable laser, wavelength- swept laser or Fourier-domain-mode-locking laser according to the relation between the roundtrip frequency and the sweeping frequency of the filter. 展开更多
关键词 Mode Locked LASER SEMICONDUCTOR Optical AMPLIFIERS TUNABLE FILTER
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Estimating Functional Brain Network with Low-Rank Structure via Matrix Factorization for MCI/ASD Identification
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作者 Yue Du limei zhang 《Journal of Applied Mathematics and Physics》 2021年第8期1946-1963,共18页
Functional brain networks (FBNs) provide a potential way for understanding the brain organizational patterns and diagnosing neurological diseases. Due to its importance, many FBN construction methods have been propose... Functional brain networks (FBNs) provide a potential way for understanding the brain organizational patterns and diagnosing neurological diseases. Due to its importance, many FBN construction methods have been proposed currently, including the low-order Pearson’s correlation (PC) and sparse representation (SR), as well as the high-order functional connection (HoFC). However, most existing methods usually ignore the information of topological structures of FBN, such as low-rank structure which can reduce the noise and improve modularity to enhance the stability of networks. In this paper, we propose a novel method for improving the estimated FBNs utilizing matrix factorization (MF). More specifically, we firstly construct FBNs based on three traditional methods, including PC, SR, and HoFC. Then, we reduce the rank of these FBNs via MF model for estimating FBN with low-rank structure. Finally, to evaluate the effectiveness of the proposed method, experiments have been conducted to identify the subjects with mild cognitive impairment (MCI) and autism spectrum disorder (ASD) from norm controls (NCs) using the estimated FBNs. The results on Alzheimer’s Disease Neuroimaging Initiative (ADNI) dataset and Autism Brain Imaging Data Exchange (ABIDE) dataset demonstrate that the classification performances achieved by our proposed method are better than the selected baseline methods. 展开更多
关键词 Functional Brain Network Matrix Factorization Pearson’s Correlation Sparse Representation High-Order Functional Connection Mild Cognitive Impairment Autism Spectrum Disorder
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缺血性脑卒中患者开展延续护理服务的价值研究
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作者 张礼梅 王琴 《西藏医药》 2021年第3期97-99,共3页
目的探讨缺血性脑卒中患者开展延续护理服务的价值。方法选择90例我院收治的缺血性脑卒中患者作为研究对象,分为观察组(n=45)和对照组(n=45)。两组住院期间均接受常规护理与出院指导。对照组出院后仅在复诊时给予护理指导,观察组在对照... 目的探讨缺血性脑卒中患者开展延续护理服务的价值。方法选择90例我院收治的缺血性脑卒中患者作为研究对象,分为观察组(n=45)和对照组(n=45)。两组住院期间均接受常规护理与出院指导。对照组出院后仅在复诊时给予护理指导,观察组在对照组的基础上采用连续护理干预。随访三个月后,比较两组睡眠质量评分、生活质量评分及护理满意度。结果观察组患者的睡眠质量、生活质量、护理满意率均明显优于对照组[(8.55±1.67)vs.(12.09±2.07)],[(217.53±11.47)vs.(174.61±10.51)],[(95.56%vs.80.00%)](P<0.05)。结论连续护理能够显著提升缺血性格脑卒中患者的预后效果,值得推广。 展开更多
关键词 缺血性脑卒中 延续护理服务 生活质量 护理满意度 睡眠质量
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员工建言如何影响团队有效性——基于微观动态性的分析视角
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作者 张丽美 梁建 《管理学季刊》 2021年第3期42-60,183,184,共21页
随着建言行为研究的深入,这一领域的热点问题逐渐从个体研究向团队层面延伸和扩展。在团队建言研究中,研究者面临的一个关键挑战在于如何将个体建言行为延伸、整合为团队层面的建言行为,以揭示来自员工个体的建言行为如何影响了团队有... 随着建言行为研究的深入,这一领域的热点问题逐渐从个体研究向团队层面延伸和扩展。在团队建言研究中,研究者面临的一个关键挑战在于如何将个体建言行为延伸、整合为团队层面的建言行为,以揭示来自员工个体的建言行为如何影响了团队有效性。然而,目前还没有一个受到广泛认可的、针对团队建言的操作性定义。不一致的概念内涵和操作定义阻碍了研究者整合、理解关于团队建言不同的甚至相互矛盾的研究结果。针对这一缺陷,本文梳理了现有的研究进展,总结分析了现有的五种不同研究视角及其优缺点。在此基础上,我们尝试提出了微观动态性视角,通过分析团队成员之间的人际互动以及在此基础上形成的非正式圈子,阐述了员工建言影响团队有效性的可能途径和作用机制。最后,我们从微观动态性分析视角出发,提出了三个可能的研究方向以指导未来的团队建言研究。 展开更多
关键词 员工建言 微观动态性视角 人际互动 团队有效性
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Targeted therapeutic effects of oral magnetically driven pectin nanoparticles containing chlorogenic acid on colon cancer
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作者 Huatai Zhu limei zhang +3 位作者 Fujia Kou Jingyang Zhao Jiandu Lei Jing He 《Particuology》 SCIE EI CAS CSCD 2024年第1期53-59,共7页
Oral colonic nano-drug delivery system has attracted growing attention in treating colon cancer for their excellent characteristics.However,the unique and complex structure of the gastrointestinal tract is still an ob... Oral colonic nano-drug delivery system has attracted growing attention in treating colon cancer for their excellent characteristics.However,the unique and complex structure of the gastrointestinal tract is still an obstacle to the safe delivery of drugs targeting sites in colon tumors.Here,we designed magnetically driven dual-targeted oral colonic nanoparticles loaded with chlorogenic acid using pectin and oleic acid-modified iron oxide(Fe3O4@OA).Specific degradation of pectin by pectinase produced by colonic flora and magnetic fields applied to the colon confers specific targeting of nanoparticles to the colon.In order to overcome the challenge of preparing magnetically driven nanoparticles with small and homogeneous particle sizes by a single conventional method,we developed the combined ultrasound-emulsification technique.The average particle size of the prepared nanoparticles was 81.04±1.02 nm,which showed good drug release in the simulated colonic environment.In vitro anticancer studies,the drug-loaded nanoparticles possess an obvious toxicity and apoptosis-inducing ability against cancer cells.Meanwhile,the hemolysis results demonstrated the safety of the nanoplatform(PET/CGA/Fe_(3)O_(4)@OA).This work holds broad prospects as a new treatment modality for colon cancer. 展开更多
关键词 PECTIN Chlorogenic acid Ultrasound-emulsion Magnetically driven Colon cancer Colon targeted
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新生儿新型冠状病毒感染174例临床分析
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作者 张丽梅 刘玲 +2 位作者 周星 奚闻娟 黄红 《中华新生儿科杂志(中英文)》 CAS CSCD 2023年第11期651-654,共4页
目的探讨新生儿新型冠状病毒(简称新冠病毒)感染的临床特点。方法回顾性收集昆明市儿童医院新生儿科2022年12月至2023年1月收治的新冠病毒感染新生儿的临床资料,对其临床特点进行总结和分析。结果共纳入新冠病毒感染新生儿174例,152例(8... 目的探讨新生儿新型冠状病毒(简称新冠病毒)感染的临床特点。方法回顾性收集昆明市儿童医院新生儿科2022年12月至2023年1月收治的新冠病毒感染新生儿的临床资料,对其临床特点进行总结和分析。结果共纳入新冠病毒感染新生儿174例,152例(87.4%)起病前有明确新冠病毒感染者接触史。临床分为轻型73例(42.0%),中型72例(41.4%),重型26例(14.9%),危重型3例(1.7%)。发热109例;118例有咳嗽、鼻塞、吐沫等呼吸道症状;56例有纳差、呕吐、腹泻等消化道症状;35例有嗜睡、精神差、反应低下、易惊等神经系统症状。所有患儿新型冠状病毒核酸检测均为阳性;白细胞总数正常151例,降低14例,升高9例;C反应蛋白升高8例;乳酸脱氢酶升高74例,肌酸激酶升高22例,谷丙转氨酶升高3例;胸部X线检查或胸部CT检查提示肺炎102例。需鼻导管吸氧26例,呼吸机辅助呼吸4例(有创3例,无创1例)。173例痊愈出院,1例自动出院后死亡(合并完全性肺静脉异位引流)。结论新生儿对新冠病毒普遍易感,起病前绝大多数有流行病学接触史。轻型及中型占83.3%,临床表现以呼吸道症状为主,主要予以对症治疗,总体预后良好。 展开更多
关键词 新型冠状病毒感染 临床特点 新生儿
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Soil pH determines fungal diversity along an elevation gradient in Southwestern China 被引量:24
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作者 Dan Liu Guohua Liu +2 位作者 Li Chen Juntao Wang limei zhang 《Science China(Life Sciences)》 SCIE CAS CSCD 2018年第6期718-726,共9页
Fungi play important roles in ecosystem processes, and the elevational pattern of fungal diversity is still unclear. Here, we examined the diversity of fungi along a 1,000 m elevation gradient on Mount Nadu, Southwest... Fungi play important roles in ecosystem processes, and the elevational pattern of fungal diversity is still unclear. Here, we examined the diversity of fungi along a 1,000 m elevation gradient on Mount Nadu, Southwestern China. We used MiSeq sequencing to obtain fungal sequences that were clustered into operational taxonomic units(OTUs) and to measure the fungal composition and diversity. Though the species richness and phylogenetic diversity of the fungal community did not exhibit significant trends with increasing altitude, they were significantly lower at mid-altitudinal sites than at the base. The Bray-Curtis distance clustering also showed that the fungal communities varied significantly with altitude. A distance-based linear model multivariate analysis(DistLM) identified that soil pH dominated the explanatory power of the species richness(23.72%),phylogenetic diversity(24.25%) and beta diversity(28.10%) of the fungal community. Moreover, the species richness and phylogenetic diversity of the fungal community increased linearly with increasing soil pH(P<0.05). Our study provides evidence that pH is an important predictor of soil fungal diversity along elevation gradients in Southwestern China. 展开更多
关键词 真菌 PH 土壤 坡度 中国 西南 生态系统过程 种系发生
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Sustained release of isoniazid from polylactide microspheres prepared using solid/oil drug loading method for tuberculosis treatment 被引量:5
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作者 limei zhang Ying Li +1 位作者 Yun zhang Chunyan Zhu 《Science China(Life Sciences)》 SCIE CAS CSCD 2016年第7期724-731,共8页
Polylactide(PLA) microspheres were prepared using the solid-in-oil(S/O) spray-drying method to achieve the sustained release of a hydrophilic drug for the treatment of tuberculosis, via intratracheal instillation. Iso... Polylactide(PLA) microspheres were prepared using the solid-in-oil(S/O) spray-drying method to achieve the sustained release of a hydrophilic drug for the treatment of tuberculosis, via intratracheal instillation. Isoniazid(IN), a low-molecular-weight hydrophilic drug, was used as a model drug. The effects of various sizes of micronized IN powder, different drug/polymer ratios, spray-drying process parameters, and drug-release characteristics were studied to optimize the manufacturing parameters. A high entrapment efficiency(87.3%) was obtained using this method; furthermore, the microspheres were spherical and smooth. They were individually and homogenously distributed, with a mean diameter of 5.6 μm; furthermore, they showed a satisfactory extended sustained-release phase. After administration of the microspheres to rats, pulmonary drug concentrations were maintained at a relatively stable level for up to 4 weeks. 展开更多
关键词 聚乳酸微球 肺结核 异烟肼 治疗 固体 缓释 制备 药物浓度
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Do land utilization patterns affect methanotrophic communities in a Chinese upland red soil? 被引量:4
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作者 Yong Zheng Xinzhan Liu +2 位作者 limei zhang Zhifeng Zhou Jizheng He 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2010年第12期1936-1943,共8页
Soil samples were collected from three plots under different land utilization patterns including degradation, farming, and restoration. The abundances of methanotrophs were quantified using real-time polymerase chain ... Soil samples were collected from three plots under different land utilization patterns including degradation, farming, and restoration. The abundances of methanotrophs were quantified using real-time polymerase chain reaction (PCR) based on the pmoA and 16S rRNA genes, and the community fingerprint was analyzed using denaturing gradient gel electrophoresis (DGGE) aiming at pmoA gene. Significantly lower 16S rRNA and pmoA genes copies were found in the degradation treatment than in farming and restoration. Higher abundances of Type I than those of Type II methanotrophs were detected in all treatments, The treatment of farming was clearly separated from degradation and restoration according to the DGGE profile by cluster analysis. The lowest diversity indices were observed in the F (farming plot), suggesting that the community structure was strongly affected by farming activities. There were significantly positive correlations between the copy numbers of pmoA also Type II-related 16S rRNA genes and soil available K content. Strong negative and positive correlations were found between Type I and soil pH, and available P content, respectively. We concluded that the vegetation cover or not, soil characteristics including pH and nutrients of P and K as a result of anthropogenic disturbance may be key factors affecting methanotrophic communities in upland soil. 展开更多
关键词 DGGE land utilization METHANOTROPHS prnoA real-time PCR
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Hierarchical Multi-objective Planning for Integrated Energy Systems in Smart Parks Considering Operational Characteristics 被引量:2
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作者 Weijie Dong limei zhang +1 位作者 Dongxia zhang Quansheng Cui 《CSEE Journal of Power and Energy Systems》 SCIE EI CSCD 2022年第6期1760-1771,共12页
An integrated energy system(IES)is considered to be an important supporting technology for emission reduction because it can effectively improve the efficiency of energy utilization and promote its sustainable develop... An integrated energy system(IES)is considered to be an important supporting technology for emission reduction because it can effectively improve the efficiency of energy utilization and promote its sustainable development.Considering the uncertainties and operational conditions,this paper establishes a bilevel multi-objective optimization model for IES for the Smart Park from the standpoint of economy,technology and environment.The upper level with one objective reflects the economic cost composed of investment,operating and maintenance,etc.The lower level constructs three objectives,including pollution emission,operation costs and renewable energy utilization.Simultaneously,various equality and inequality constraints are addressed to satisfy the technical requirements.In addition,an improved MOEA/D-MC-DC algorithm(Multi Objective Evolutionary Algorithm through Decomposition Based on Monte Carlo and Decoupled Coding,MOEA/D-MC-DC)is presented for handling the complex and nonlinear bilevel multi-objective optimization problems with constraints.A genetic algorithm(GA)is used to solve the upper single objective,while MOEA is employed to cope with the multi-objectives of the lower level.Using three typical IESs in the Smart Park as examples,several simulations are carried out to verify the efficiency,applicability and universality of the proposed model and optimization algorithm.The results show that the proposed method can effectively optimize the configuration of an IES in various Smart Parks. 展开更多
关键词 Integrated energy system bilevel multiobjective optimization configuration MOEA/D-CA-DC Smart Park
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Responses of activities, abundances and community structures of soil denitrifiers to short-term mercury stress 被引量:8
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作者 Zhifeng Zhou Yuanming Zheng +3 位作者 Jupei Shen limei zhang Yurong Liu Jizheng He 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2012年第3期369-375,共7页
The responses of activities, abundances and community structures of soil denitrifiers to mercury (Hg) stress were investigated through a short-term incubation experiment. Four soil treatments with different concentr... The responses of activities, abundances and community structures of soil denitrifiers to mercury (Hg) stress were investigated through a short-term incubation experiment. Four soil treatments with different concentrations of Hg (CK, Hg25, Hg50, and Hg100, denoted as 0, 25, 50, and 100 mg Hg/kg dry soil, respectively) were incubated for 28 days. Soil denitrification enzyme activity (DEA) was measured at day 3, 7 and 28. The abundances and community structures of two denitrification concerning genes, nirS (cd1-nitrite reductase gene) and nosZ (nitrous oxide reductase gene), were analyzed using real-time PCR and denaturing gradient gel electrophoresis (DGGE). Results showed that soil DEA was significantly stimulated in the treatments of Hg25 and Hg50 compared with others at day 7. Meanwhile, no difference in the abundances of soil nirS and nosZ was found between Hg spiked treatments and CK, except the lower abundance of nirS (P 〈 0.05) in the Hg added treatments compared with that in the CK at day 28. The community structures of denitrifiers based on nirS gene presented obvious change at day 7 along with the Hg additions, however, no variation was found in all treatments based on the nosZ gene. The results indicated that Hg (Hg25 and Hg50) had a strongly short-term stimulation on soil DEA, and nirS gene is more sensitive than nosZ gene to Hg stress. 展开更多
关键词 Hg denitrification enzyme activity nirS nosZ DGGE real-time PCR
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OPPORTUNITIES AND APPROACHES FOR MANIPULATING SOIL-PLANT MICROBIOMES FOR EFFECTIVE CROP NITROGEN USE IN AGROECOSYSTEMS 被引量:2
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作者 Jingjing PENG Olatunde OLADELE +8 位作者 Xiaotong SONG Xiaotang JU Zhongjun JIA Hangwei HU Xuejun LIU Shuikuan BEI Anhui GE limei zhang Zhenling CUI 《Frontiers of Agricultural Science and Engineering》 2022年第3期333-343,共11页
Soil microbiomes drive the biogeochemical cycling of nitrogen and regulate soil N supply and loss,thus,pivotal nitrogen use efficiency(NUE).Meanwhile,there is an increasing awareness that plant associated microbiomes ... Soil microbiomes drive the biogeochemical cycling of nitrogen and regulate soil N supply and loss,thus,pivotal nitrogen use efficiency(NUE).Meanwhile,there is an increasing awareness that plant associated microbiomes and soil food web interactions is vital for modulating crop productivity and N uptake.The rapid advances in modern omics-based techniques and biotechnologies make it possible to manipulate soil-plant microbiomes for improving NUE and reducing N environmental impacts.This paper summarizes current progress in research on regulating soil microbial N cycle processes for NUE improvement,plant-microbe interactions benefiting plant N uptake,and the importance of soil microbiomes in promoting soil health and crop productivity.We also proposes a potential holistic(rhizosphere-root-phyllosphere)microbe-based approach to improve NUE and reduce dependence on mineral N fertilizer in agroecosystems,toward nature-based solution for nutrient management in intensive cropping systems. 展开更多
关键词 NITROGEN MICROBIOME NUE RHIZOSPHERE PHYLLOSPHERE soil food web
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