检索结果-南通市图书馆

In situ synthesis of chemically bonded NaTi2（PO4）3/rGO 2D nanocomposite for high-rate sodium-ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2016年第6期9卷 1844-1855页

作者： Ha-Kyung roh hyun-Kyung Kim Myeong-Seong Kim Dong-hyun Kim Kyung Yoon Chung Kwang Chul roh Kwang-Bum Kim Department of Material Science & Engineering Yonsei University 50 Yonsei-ro Seodaemun-gu Seou103722 Republic of Korea Department of Materials Science and Metallurgy University of Cambridge 27 Charles Babbage Road Cambridge CB30FS UK Center for Energy Convergence Korea Institute of Science and Technology 5 Hwarang-ro 14-gil Seongbuk-gu Seou102792 Republic of Korea Energy & Environmental Division Korea Institute of Ceramic Engineering & Technology 101 Soho-ro Jinju-si Gyeongsangnam-do 52851 Republic of Korea

A phase-pure NaTi2（PO4）3/reduced graphene oxide （rGO） nanocomposite was prepared using a microwave-assisted one-pot method and subsequent heat treatment. The well-crystallized NaTi2（PO4）3 nanoparticles （30-40 nm） were uniformly precipitated on rGO templates through Ti-O-C bonds. The chemical interactions between the NaTi2（PO4）3 nanoparticles and rGO could immobilize the NaTi2（PO4）3 nanoparticles on the rGO sheets, which might be responsible for the excellent electrochemical performance of the nanocomposite. The NaTi2（PO4）B/rGO nanocomposite exhibited a specific capacity of 128.6 mA-h.g-1 approaching the theoretical value at a 0.1 C-rate with an excellent rate capability （72.9% capacity retention at 50 C-rate） and cycling performance （only 4.5% capacity loss after 1,000 cycles at a high rate of 10 C）. These properties were maintained even when the electrodes were prepared without the use of an additional conducting agent. The excellent sodium storage properties of the NaTi2（PO4）B/rGO nanocomposite could be attributed to the nano-sized NaTi2（PO4）3 particles, which significantly reduced the transport lengths for Na＋ ions, and an intimate contact between the NaTi2（PO4）3 particles and rGO due to chemical bonding.

关键词： NaTi2(PO4)dreducedgraphene oxide (rGO)nanocomposite chemical bonding energy-efficiency in situ synthesis high-rate sodium-ion batteries

A Note on the Stability of Jordan Triple Higher Ring Derivations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2009年第12期25卷 1975-1986页

作者： Jaiok roh Yong-Soo JUNG Ick-Soon chang Department of Mathematics Hallym University Department of Mathematics Sunmoon University Department of Mathematics Mokwon University

In the present paper, we establish the stability and the superstability of a functional inequality corresponding to the functional equation fn（xyx） = ∑i＋j＋k=n fi（x）fj （y）fk（x）. In addition, we take account ... 详细信息

关键词： functional inequality Jordan triple higher ring derivation stability radical range

Brassinosteroids enhance salicylic acid-mediated immune responses by inhibiting BIN2 phosphorylation of clade I TGA transcription factors in Arabidopsis

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

Molecular Plant 2022年第6期15卷 991-1007页

作者： Yeong-Woo Kim Ji-hyun Youn Jeehee roh Jeong-Mok Kim Seong-Ki Kim Tae-Wuk Kim Department of Life Science Hanyang UniversitySeoul 04763Republic of Korea Department of Life Science Chung-Ang UniversitySeoul 06973Republic of Korea Research Institute for Convergence of Basic Science Hanyang UniversitySeoul 04763Republic of Korea Hanyang Institute of Bioscience and Biotechnology Hanyang UniversitySeoul 04763Republic of Korea

Salicylic acid (SA) plays an important role in plant immune response, including resistance to pathogens and systemic acquired resistance. Two major components, NONEXPRESSOR OF PATHOGENESIS-RELATED GENES (NPRs) and TGACG motif-binding transcription factors (TGAs), are known to mediate SA signaling, which might also be orchestrated by other hormonal and environmental changes. Nevertheless, the molecular and functional interactions between SA signaling components and other cellular signaling pathways remain poorly understood. Here we showed that the steroid plant hormone brassinosteroid (BR) promotes SA responses by inactivating BR-INSENSITIVE 2 (BIN2), which inhibits the redox-sensitive clade I TGAs in Arabidopsis. We found that both BR and the BIN2 inhibitor bikinin synergistically increase SA-mediated physiological responses, such as resistance to Pst DC3000. Our genetic and biochemical analyses indicated that BIN2 functionally interacts with TGA1 and TGA4, but not with other TGAs. We further demonstrated that BIN2 phosphorylates Ser-202 of TGA4, resulting in the suppression of the redox-dependent interaction between TGA4 and NPR1 as well as destabilization of TGA4. Consistently, transgenic Arabidopsis overexpressing TGA4-YFP with a S202A mutation displayed enhanced SA responses compared to the wild-type TGA4-YFP plants. Taken together, these results suggest a novel crosstalk mechanism by which BR signaling coordinates the SA responses mediated by redox-sensitive clade I TGAs.

关键词： brassinosteroid salicylic acid immune responses BIN2 clade I TGA

Fabrication of High-Density Out-of-Plane Microneedle Arrays with Various Heights and Diverse Cross-Sectional Shapes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2022年第2期14卷 60-78页

作者： Hyeonhee roh Young Jun Yoon Jin Soo Park Dong-hyun Kang Seung Min Kwak Byung Chul Lee Maesoon Im Brain Science Institute Korea Institute of Science and Technology(KIST)Seoul 02792South Korea Division of Electrical Engineering College of EngineeringKorea UniversitySeoul 02841South Korea Micro/Nano Fabrication Center KISTSeoul 02792South Korea Division of Bio‑Medical Science&Technology KIST SchoolUniversity of Science&Technology(UST)Seoul 02792South Korea

Out-of-plane microneedle structures are widely used in various applications such as transcutaneous drug delivery and neural signal recording for brain machine *** work presents a novel but simple method to fabricate high-density silicon(Si)microneedle arrays with various heights and diverse cross-sectional shapes depending on photomask pattern *** proposed fabrication method is composed of a single photolithography and two subsequent deep reactive ion etching(DRIE)***,a photoresist layer was patterned on a Si substrate to define areas to be etched,which will eventually determine the final location and shape of each individual ***,the 1st DRIE step created deep trenches with a highly anisotropic etching of the Si ***,the photoresist was removed for more isotropic etching;the 2nd DRIE isolated and sharpened microneedles from the predefined trench *** on diverse photomask designs,the 2nd DRIE formed arrays of microneedles that have various height distributions,as well as diverse cross-sectional shapes across the *** these simple steps,high-aspect ratio microneedles were created in the high density of up to 625 microneedles mm^(-2)on a Si *** tests showed a small force as low as~172μN/microneedle is required for microneedle arrays to penetrate the dura mater of a mouse *** demonstrate a feasibility of drug delivery application,we also implemented silk microneedle arrays using molding *** fabrication method of the present study is expected to be broadly applicable to create microneedle structures for drug delivery,neuroprosthetic devices,and so on.

关键词： Microneedle Various heights Cross-sectional shapes Isotropic etch Deep reactive ion etching

Proxy-Based Hierarchical Distributed Mobility Management for Tactical Networks

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

Computers, Materials & Continua 2022年第2期70卷 2381-2399页

作者： Myoung-hun Han Bong-Soo roh Kyungwoo Kim Dae-Hoon Kwon Jae-hyun Ham Kyunghyun Yoon Sanghyun Seo Agency for Defense Development Daejeon34186Korea Department of Computer Science and Engineering Chung-Ang UniversitySeoul06974Korea College of Art&Technology Chung-Ang UniversityAnseong17546Korea

An important requirement in a military domain is a highly reliable mobility management method,especially when components of the networks aremoving in tactical network *** increase reliability,themobility management technology of the tactical network should be able to reflect the characteristics of the tactical network,such as a limited environment,failure,and hierarchical unit *** this paper,we propose a proxy-based hierarchical distributedmobilitymanagement scheme,which is highly focused on tactical *** the characteristics of tactical networks,the proposed scheme is composed of the following:1)a proxy-based method,2)a distributed mobility management method that synchronizes a mobility database between entities,and 3)a method of managing mobility by dividing the tactical network into upper and lower *** analysis and modeling and simulation results demonstrate that the method outperforms the existing state-of-the-art method in overcoming entity failure,handover cost,and delay in tactical environments.

关键词： Mobility management tactical networks PMIP DMM

Quality of Service Improvement with Optimal Software-Defined Networking Controller and Control Plane Clustering

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第4期67卷 849-875页

作者： Jehad Ali Byeong-hee roh Department of Computer Engineering and Department of AI Convergence Network Suwon16499Korea

The controller is indispensable in software-defined networking(SDN).With several features,controllers monitor the network and respond promptly to dynamic *** performance affects the quality-of-service(QoS)in *** controller supports a set of ***,the support of the features may be more prominent in one ***,a single controller leads to performance,single-point-of-failure(SPOF),and scalability *** overcome this,a controller with an optimum feature set must be available for ***,a cluster of optimum feature set controllers will overcome an SPOF and improve the QoS in ***,leveraging an analytical network process(ANP),we rank SDN controllers regarding their supporting features and create a hierarchical control plane based cluster(HCPC)of the highly ranked controller computed using the ANP,evaluating their performance for the OS3E *** results demonstrated in Mininet reveal that a HCPC environment with an optimum controller achieves an improved ***,the experimental results validated in Mininet show that our proposed approach surpasses the existing distributed controller clustering(DCC)schemes in terms of several performance metrics i.e.,delay,jitter,throughput,load balancing,scalability and CPU(central processing unit)utilization.

关键词： Quality-of-service software-defined networking controller hierarchical control plane clustering scalability

New lumped-mass-stick model based on modal characteristics of structures: development and application to a nuclear containment building

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Earthquake Engineering and Engineering Vibration 2013年第2期12卷 307-317页

作者： Hwasung roh Huseok Lee Jong Seh Lee Department of Civil Engineering Chonbuk National University Department of Civil and Environmental Engineering Hanyang University

In this study, a new lumped-mass-stick model （LMSM） is developed based on the modal characteristics of a structure such as eigenvalues and eigenvectors. The simplified model, named the ＂frequency adaptive lumped-massstick model,＂ hasonly a small number of stick elements and nodes to provide the same natural frequencies of the structure and is applied to a nuclear containment building. To investigate the numerical performance of the LMSM, a time history analysis is carried out on both the LMSM and the finite element model （FEM） for a nuclear containment building. A comparison of the results shows that the dynamic responses of the LMSM in terms of displacement and acceleration are almost identical to those of the FEM. In addition, the results in terms of floor response spectra at certain elevations are also in good agreement.

关键词： new lumped-mass-stick model frequency adaptive nuclear containment buildings seismic response floor response spectrum

Gene expression profiling:Canonical molecular changes and clinicopathological features in sporadic colorectal cancers

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

World Journal of Gastroenterology 2008年第43期14卷 6662-6672页

作者： Jin Cheon Kim Seon Young Kim Seon Ae roh Dong-hyung Cho Dae Dong Kim Jeong hyun Kim Yong Sung Kim Department of Surgery University of Ulsan College of Medicine and Asan Medical Centerand Laboratory of Cancer Biology & GeneticsAsan Institute for Life SciencesSeoul 138-736South Korea Medical Genomics Research Center Korea Research Institute of Bioscience & BiotechnologyDaejeon 305-806South Korea

AIM： To investigate alternative or subordinate pathways involved in colorectal tumorigenesis and tumor growth, possibly determining at-risk populations and predicting responses to treatment. METHODS： Using microarray gene-expression analysis, we analyzed patterns of gene expression relative to canonical molecular changes and clinicopathological features in 84 sporadic colorectal cancer patients, standardized by tumor location. Subsets of differentially expressed genes were confirmed by real-time reverse-transcript polymerase chain reaction （RT-PCR）. RESULTS： The largest number of genes identified as being differentially expressed was by tumor location, and the next largest number by lymphovascular or neural invasion of tumor cells and by mismatch repair （NMR） defects. Amongst biological processes, the immune response was significantly implicated in entire molecular changes observed during colorectal tumorigenesis （P 〈 0.001）. Amongst 47 differentially expressed genes, seven （PISD, NIBP, BAI2, STOML1, MRPL21, MRPL16, and MKKS） were newly found to correlate with tumorigenesis and tumor growth. Most location-associated molecular changes had distinct effects on gene expression, but the effects of the latter were sometimes contradictory. CONCLUSION： We show that several differentially expressed genes were associated with canonical molecular changes in sporadic colorectal cancers, possibly constituting alternative or subordinate pathways of tumorigenesis. As tumor location was the dominant factor influencing differential gene expression, location-specific analysis may identify location-associated pathways and enhance the accuracy of class prediction.

关键词： Colorectal adenocarcinomas Sporadic Gene expression Profiling Tumorigenesis

Development and first evaluation of an attractant impregnated adhesive tape against blood-sucking flies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2022年第2期29卷 603-612页

作者： Junwei J.Zhu Gwang-hyun roh Yosuke Asamoto Kujtim Bizati Jen-Chieh Liu Alexander Lehmann Kyle Harrison David BTaylor Hironao Otake Agroecosystem Management Research Unit US Department of AgricultureAgricultural Research ServiceLincolnNebraskaUSA US Pacific Basin Agricultural Research Center US Department of AgricultureAgricultural Research ServiceHiloHawaiiUSA Oak Ridge Institute for Science and Education Oak RidgeTennesseeUSA Nitto Inc. TeaneckNew JerseyUSA Department of Entomology University of NebraskaLincolnNebraskaUSA

Stable flies are one of the most important arthropod pests of livestock that reduce cattle weight gain and milk production leading to annual economic losses in excess of$2 billion to the US cattle *** host-seeking behavior is primarily mediated by associated odors from stable fly larval development environments and host *** present paper reports the development and evaluation of attractant-impregnated adhesive tapes to reduce stable fly attacks on *** bioassays showed that only m-cresol impregnated adhesive tapes caught significantly more stable flies(16±1)than the control tape without attractant added(7±1),with a 77%fly recapture ***-impregnated adhesive tapes deployed in cattle feedlots showed significant impacts in reducing fly population,with a total of one million stable flies captured over a period of three weeks(mean catches from 57596 to 102088 stable flies per trap per week).It further relieved cattle stress with a significant reduction of biting fly avoidance behavior,(6±0.4 cows observed with tail wagging in control vs.3±0.4 from the trap-deployed).The efficacy of the developed tapes lasted up to 1-week longevity,although 70%of m-cresol was released starting from the second *** m-cresol impregnated adhesive tape provided an 80%reduction in cattle stress due to stable fly *** is the first report of a technology developed by integrating an attractant compound into an adhesive material on a plastic film with demonstrated effectiveness in trapping biting flies that attack livestock animals.

关键词： cattle stress reduction mass trapping m-cresol-impregnated adhesive tapes Stomoxys calcitrans