检索结果-南通市图书馆

Photoluminescence and Electroluminescence Studies on Tb-Doped Silicon Rich Oxide Materials and Devices

Journal of Rare Earths 2006年第6期24卷 673-678页

作者： Yoshi Ono sheng-teng Hsu Sharp Labs of America 5750 N.W. Pacific Rim Blvd. Camas Washington 98607USA

Photoluminescence （PL） characteristics of Tb-doped silicon rich oxide （SRO） films prepared by DC-sputtering and post-annealing processes were studied. The silicon richness of the SRO film could be controlled by varying the sputtering power and oxygen concentration in the sputtering chamber. PL emission from the as-deposited sample was found to be composed of Th^3 ＋ intra 4f transition-related emission and the silicon nano particle-related broad bandwidth emission. Thermal annealing could significantly improve the material properties as well as the PL signals. PL properties depended strongly upon the annealing scheme and silicon richness. Annealing at high temperatures （900- 1050℃） enhanced Tbrelated emission and suppressed the silicon nano particle-related emission. For samples with different silicon richness, annealing at 950 ℃ was found to produce higher PL signals than at other temperatures. It was attributed more to lifetime quenching than to concentration quenching. Electroluminescent （EL） devices with a capacitor structure were fabricated, the optimized process condition for the EL device was found to be different from that of PL emission. Among the annealing schemes that were used, wet oxidation was found to improve device performance the most, whereas, dry oxidation was found to improve material property the most. Wet oxidation allowed the breakdown electrical field to increase significantly and to reach above 10 mV·cm^-1. The EL spectra showed a typical Th^3＋ emission, agreeing well with the PL spectra. The I-V measurements indicated that for 100 nm thick film, the Fowler-Nordheim tunneling started at an electrical field of around 6 mV·cm^-1 and the light emission became detectable at a current density of around 10-4 A·cm^-2 and higher. Strong electroluminescence light emission was detected when the electrical field was close to 10 mV·cm^-1.

关键词： electroluminescence device silicon rich oxide rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fabrication and Properties of Nano-Si Quantum Dot Flash Memory

Fabrication and Properties of Nano-Si Quantum Dot Flash Memo...

引用

2006 8th International Conference on Solid-State and Integrated Circuit Technology

作者： Tingkai Li sheng teng Hsu Sharp Labs.of America Inc.5700 NW Pacific Rim BlvdCamasWA 98607USA

ISBN: (纸本)1424401607

We proposed a novel integration processes including multi-layer CVD poly-Si deposition and post-annealing and thermal oxidation processes for nano-Si quantum dot flash memory devices *** these processes,high quality nano-Si quantum dot flash memory devices have been *** increasing tunneling oxide thickness,the operation voltage increases,but retention properties are *** increasing nano-Si particle sizes and layer thickness,the memory window increases from 6V to *** programming to "on" or "off" states,the drain current read at 1V is about 5×10 A and 5×10A respectively. The ratio of "on" current to "off" current is about 8 *** nano-Si quantum dot memory devices show very good properties.

关键词： Fabrication Quantum dots Flash memory

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Effective approach for conformal subarray design based on maximum entropy of planar mappings

引用

Journal of Electronic Science and Technology 2024年第3期22卷 16-25页

作者： Xiao-Dong Zheng sheng-teng Shi Jun Ou-Yang Feng Yang Qammer Abbasi Abubakar Sharif School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China School of Engineering University of GlasgowScotlandG128QQUK

In this paper,an effective algorithm for optimizing the subarray of conformal arrays is *** method first divides theconformal array into several first-level *** uses the X algorithm to solve the feasible solution of first-level subarray tiling and employs the particle swarm algorithm to optimize the conformal array subarray tiling scheme with the maximum entropy of the planar mapping as the fitness ***,convex optimization is applied to optimize the subarray amplitude *** results verify that the method can effectively find the optimal conformal array tiling scheme.

关键词： Conformal array Irregular arrays Particle swarm optimal algorithm Maximum entropy model

来源：

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

TCD5 Enhances the Photosynthesis Capacity,Increases the Panicle Number and the Yield in Rice

引用

Phyton-International Journal of Experimental Botany 2023年第9期92卷 2649-2663页

作者： Jing Yang Yufeng Wang Zhanghua Hu Xiaoping Chen Yanjun Dong sheng teng Zhejiang Provincial Key Laboratory of Biometrology and Inspection&Quarantine College of Life SciencesChina Jiliang UniversityHangzhou310018China CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of SciencesShanghai200032China Institute of Virology and Biotechnology Zhejiang Academy of Agricultural SciencesHangzhou310021China Agrotechnical Extension Station in Tiantai County Taizhou317200China College of Life Sciences Shanghai Normal UniversityShanghai200234China

Improvement of photosynthetic efficiency is a major approach to increase crop yield ***,we cloned a gene encoding the chloroplast-located putative monooxygenase TCD5,which is essential in plastid development under low temperature in rice(Oryza sativa L.).In this study,the effects of TCD5 on the photosynthesis and the yields were investigated in *** sets of genetic materials with three levels of TCD5 expression,including tcd5 mutant or TCD5 RNAi transgenic lines and TCD5 over-expression transgenic lines in Jiahua1 and Nipponbare backgrounds,were used in the field trails of multi-locations and ***5 positively affected the panicle number and the yield at *** with the wild-types,the panicle numbers were 12.4%-14.6%less in tcd5 mutant and 8.3%-38.6%less in TCD5 RNAi lines,but 26.2%-61.8%more in TCD5 over-expression *** grain yields per plant were 9.1%-18.4%less in tcd5 mutant and 14.3%-56.7%less in TCD5 RNAi lines,but 6.9%-56.5%more in TCD5 over-expression *** measurements of net photosynthetic rate indicated that mutation or knock down of TCD5 decreased the net photosynthetic rate by 10.4%and 15.6%,respectively,while increasing it by 8.9%and 8.7%in the TCD5 over-expression lines in Jiahua1 and Nipponbare backgrounds,***,the measurements of chlorophyll fluorescence parameters showed that the electron transport rate and quantum yield decreased in tcd5 mutant or TCD5 RNAi lines but increased in TCD5 overexpression lines,both in Jiahua1 and Nipponbare ***-MS screening revealed that TCD5 interacts with 29 chloroplast proteins involved in chlorophyll synthesis,photo-reactions of the photosynthesis,carbon assimilation and metabolism,energy metabolism,redox balance,protein synthesis and *** TCD5 interacted proteins,D1 and FBA were effective targets for improving *** results suggest a potentially new strategy for increasing rice yield by enhancing photosynthe

关键词： TCD5 photosynthesis panicle number yield

来源：

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

Roles of conventional and complementary therapies in recurrent hepatocellular carcinoma

引用

World Journal of Gastrointestinal Oncology 2023年第1期15卷 19-35页

作者： Hsiang-Chun Lai Hung-Jen Lin Long-Bin Jeng sheng-teng Huang Graduate Institute of Chinese Medicine School of Chinese MedicineCollege of Chinese MedicineChina Medical UniversityTaichung 40447Taiwan Department of Chinese Medicine China Medical University HospitalTaichung 40447Taiwan Organ Transplantation Center China Medical University HospitalTaichung 40447Taiwan School of Chinese Medicine China Medical UniversityTaichung 40447Taiwan Cancer Research Center for Traditional Chinese Medicine Department of Medical ResearchChina Medical University HospitalTaichung 40447Taiwan An-Nan Hospital China Medical UniversityTainan 709204Taiwan

Hepatocellular carcinoma(HCC)is the fifth most common type of cancer and the fourth leading cause of cancer-related deaths in the *** has a reported recurrence rate of 70%-80%after 5 years of *** tumor recurrence is the most critical factor associated with HCC *** salvage therapies for recurrent HCC include re-hepatectomy or liver transplantation,transcatheter arterial chemoembolization,Y-90,target therapy,and immunotherapy;however,these conventional treatment modalities have yet to achieve consistently favorable ***,previous studies have demonstrated that conventional therapies in combination with traditional Chinese medicine(TCM),acupuncture,moxibustion or dietary supplements could notably benefit patients with HCC recurrence by strengthening and augmenting the overall management ***,systemic reviews related to the interactions between complementary therapies and conventional therapy in recurrent HCC are *** this review,we discuss the molecular mechanisms underlying the functions of complementary therapies for recurrent HCC,which include augmenting the local control to improve the congestion status of primary tumors and reducing multicentric tumor occurrence via inducing autophagy,apoptosis or cell cycle *** and its derivatives may play important roles in helping to control HCC recurrence by inhibiting epithelial-mesenchymal transition,migration,invasion,and metastasis,inhibiting cancer stem cells,and ameliorating drug resistance.

关键词： Recurrence Hepatocellular carcinoma Complementary therapy Traditional Chinese medicine Cancer stemness Drug resistance

来源：

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

QTL analysis of rice low temperature germinability

引用

Chinese Science Bulletin 2001年第21期46卷 1800-1804页

作者： teng sheng ZENG Dali QIAN Qian Kunihifo Yasufumi HUANG Danian Zhu Lihuang China National Rice Research Institute Key Lab for Rice BiologyMinistry of AgricultureHangzhou 310006China College of Life Science Zhejiang UniversityHangzhou 310029China Japan International Research Center for Agriculture Science Tsukuba 305-8686Japan Institute of Genetics China Academy of SciencesBeijing 100101China

A double haploid population, derived from anther culture of F, hybrid between a typical indica and a japonica (ZYQ8/JX17), has been used to investigate the low temperature germinability (LTG) at 15℃. The low temperature germinability of two parents was significantly different. In 6-11 d, the germination percentage of ZYQ8 was higher than that of JX17. In 12-16 d, the germination percentage of JX17 was higher than that of ZYQ8. The quantitative trait loci (QTLs) of every day for low temperature germinabilityhave been mapped based on a molecular linkage map constructed from this population. In 8-11 d, qLTG-9 was identified in C397B-RZ617B on chromosome 9, the additive effect was positive, showing that, the allele from JX17 could increase low temperature germinability. In 12-16 d, qLTG-4 was mapped between RG908 and CT563 on chromosome 4, the additive effect was negative, showing that the allele from ZYQ8 could increase low temperature germinability. These two QTLs were detected at different stages,

关键词： Indica and japonica subspecies DH population low temperature germinability QTL detection dynamical analysis.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The rice OsV4 encoding a novel pentatricopeptide repeat protein is required for chloroplast development during the early leaf stage under cold stress

引用

Journal of Integrative Plant Biology 2014年第4期56卷 400-410页

作者： Xiaodi Gong Qianqian Su Dongzhi Lin Quan Jiang Jianlong Xu Jianhui Zhang sheng teng Yanjun Dong Development Center of Plant Germplasm Resources College of Life and Environmental Sciences Shanghai Normal University Institute of Crop Sciences the Chinese Academy of Agricultural Sciences Institute of Plant Physiology and Ecology Shanghai Institute for Biological Sciences the Chinese Academy of Sciences

Pentatricopeptide repeat （PPR） proteins, charac- terized by tandem arrays of a 35 amino acid motif, have been suggested to play central and broad roles in modulating the expression of organelle genes in plants. However, the molecular mechanisms of most rice PPR genes remains unclear. In this paper, we isolated and characterized a temperature-conditional virescent mutant, OsV4, in rice （Oryza sativa cultivar Jiahual （WT, japonica rice variety））. The mutant displays albino phenotype and abnormal chloroplasts at the three leaf stage, which gradually turns green after the four leaf stage at a low temperature （20℃）. But the mutant always develops green leaves and well-developed chloroplasts at a high temperature （32℃）. Genetic and molecular analyses uncovered that OsV4 encodes a novel chloroplast-targeted PPR protein including four PPR motifs. Further investigations show that the mutant phenotype is associated with changes in chlorophyll content and chloroplast development. The OsV4 transcripts only accumulate to high levels in young leaves, indicating that its expression is tissue-specific. In addition, transcript levels of some ribosomal components and plastid- encoded polymerase-dependent genes are dramatically re- duced in the albino mutants grown at 20℃. These findings suggest that OsV4 plays an important role during early chloroplast development under cold stress in rice.

关键词： Chloroplast development pentatricopeptide repeat plastid-encoded polymerase rice virescent

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Origin of the presence/absence variation of the LTIA1/LTIA2 mini-ribonucleaseⅢgenes required for low-temperature growth in rice

引用

The Crop Journal 2024年第5期12卷 1459-1470页

作者： Jing Yang Yu Peng Limin Mi Aiqing Sun Ping Li Yan Wang Yi Zhang sheng teng Key Laboratory of Microbiological Metrology Measurement&Bio-product Quality SecurityState Administration for Market RegulationCollege of Life SciencesChina Jiliang UniversityHangzhou 310018ZhejiangChina Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China School of Life Sciences Fudan UniversityShanghai 200433China College of Life Sciences Shanghai UniversityShanghaiChina School of Agriculture Yunnan UniversityKunming 650504YunnanChina University of Chinese Academy of Sciences Beijing 100049China

A rice low temperature-induced albino variant was determined by the recessive ltia1 and ltia2 ***1 and LTIA2 encode highly conserved mini-ribonucleasesⅢlocated in chloroplasts and expressed in aerial parts of the *** low temperature,LTIA1 and LTIA2 redundantly affect chlorophyll levels,non-photochemical quenching,photosynthetic quantum yield of PSⅡand seedling ***1 and LTIA2 proteins are involved in splicing of atp F and the biogenesis of 16S and 23S rRNA in ***/absence variation of LTIA1,the ancestral copy,was found only in japonica but that of LTIA2 in all rice *** with LTIA2 presence tended to be distributed more remote from the equator compared to those with LTIA2 ***2 duplicated from LTIA1 at the early stage of divergence of the AA genome Oryza species but deleted againin *** cultivated rice,absence of LTIA2 is derived from ***1 absence occurred more recently in japonica.

关键词： Rice Low temperature induced albino Mini-RNaseⅢ Presence/Absence variations Evolution

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Genetic dissection of rice appearance quality and cooked rice elongation by genome-wide association study

引用

The Crop Journal 2021年第6期9卷 1470-1480页

作者： Xianjin Qiu Jing Yang Fan Zhang Yanan Niu Xiuqing Zhao Congcong Shen Kai Chen sheng teng Jianlong Xu Engineering Research Center of Ecology and Agricultural Use of Wetland Ministry of Education/Hubei Collaborative Innovation Center for Grain IndustryJingzhou 434025HubeiChina Laboratory of Photosynthesis and Environmental Biology CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120GuangdongChina University of Chinese Academy of Sciences Beijing 100049China

Appearance and cooked rice elongation are key quality traits of rice. Although some QTL for these traits have been identified, understanding of the genetic relationship between them remains limited. In the present study, large phenotypic variation was observed in 760 accessions from the 3 K Rice Genomes Project for both appearance quality and cooked rice elongation. Most component traits of appearance quality and cooked rice elongation showed significant pairwise correlations, but a low correlation was found between appearance quality and cooked rice elongation. A genome-wide association study identified 74 QTL distributed on all 12 chromosomes for grain length, grain width, length to width ratio, degree of endosperm with chalkiness, rice elongation difference, and elongation index. Thirteen regions containing QTL stably expressed in multiple environments and/or exerting pleiotropic effects on multiple traits were detected. By gene-based association analysis and haplotype analysis, 46 candidate genes, including five cloned genes, and 49 favorable alleles were identified for these 13 QTL. The effect of the candidate gene Wx on rice elongation difference was validated by a transgenic strategy. These results shed light on the genetic bases of appearance quality and cooked rice elongation and provide gene resources for improving rice quality by molecular breeding.

关键词： Appearance quality Cooked rice elongation Genome-wide association study Candidate gene Favorable allele Quantitative trait locus/loci(QTL)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Clinical study of apatinib in the treatment of stage IV osteogenic sarcoma after failure of chemotherapy

引用

Cancer Biology & Medicine 2020年第2期17卷 501-512页

作者： Zhichao Liao Ting Li Chao Zhang Xinyue Liu Ruwei Xing sheng teng Yun Yang Gang Zhao Xu Bai Jun Zhao Jilong Yang Department of Bone and Soft Tissue Tumor Tianjin Medical University Cancer Institute and HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin’s Clinical Research Center for CancerTianjin 300060China Department of Pathology Tianjin Medical University Cancer Institute and HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin’s Clinical Research Center for CancerTianjin 300060China Department of Radiology Tianjin Medical University Cancer Institute and HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin’s Clinical Research Center for CancerTianjin 300060China

Objective:To analyze the efficacy and safety o f apatinib in the treatment of stage IV osteogenic sarcoma after chemotherapy failure through a single-arm,prospective,and open clinical phase II ***:Information on 34 patients with stage IV osteogenic sarcoma treated with apatinib after failure o f chemotherapy in Tianjin Medical University Cancer Institute and Hospital between September 2015 and December 2019 was collected and *** participants included 23 males and 11 females,with an average age of 35.24 years(11-73 years).The objective response rate(ORR),disease control rate(DCR),progression-free survival(PFS),PFS rate(PFR),and overall survival(OS)were *** treatmentrelated adverse events(AEs)and safety of apatinib were also ***:O f the 34 patients,33 were able to be evaluated for *** patient received apatinib treatment for less than one cycle;therefore,only safety analysis was *** 12-week clinical evaluation showed that 2 patients had a partial response(PR),24 patients had stable disease(SD),and 7 patients had progressive disease(PD).The ORR,DCR,and PFR at 12 weeks were 6.06%(2/33),78.79%(26/33),and 82%,*** the end of the follow-up,6 patients had SD(18.18%,6/33),27 patients had PD(81.82%,27/33),and 15 patients died because of disease progression(45.45%,15/33).The ORR was 0(0/33),the DCR was 18.18%(6/33),and the median PFS(mPFS)was 7.89 months(95%Cl:4.56-11.21).The median OS(mOS)was 17.61 months(95%Cl:10.85-24.37).The most common treatment-related AEs were hand-foot syndrome(35.29%,12/34),proteinuria(32.35%,11/34),and hypertension(32.35%,11/34).

关键词： Apatinib osteogenic sarcoma progression-free survival safety

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：