|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Paleoenvironmental records from the northern South China Sea since the Last Glacial Maximum显示文摘Core ZHS-176 contains the paleoenvironmental records from the northern South China Sea (NSCS) since the Last Glacial Maximum (LGM). A coupled approach based on clay mineral assemblages, planktonic foraminiferal oxygen and carbon isotopes, and calcium carbonate content is used to trace the sources of the fine-grained sediment and to investigate the paleoenviornmental evolution in this area. Clay mineral assemblages are dominated by illite (average about 39%) and chlorite (about 27%), which comes mainly from Taiwan and the East China Sea. Kaolinite, which accounts for about 13%, comes mainly from the Zhujiang (Pearl) River, and Luzon Island is the main source for smectite (about 21%). The planktonic foraminiferal oxygen isotopic oscillations during the last glacial period are coeval with climate variations recorded in the Greenland ice core and Western Pacific sediment. These variations include the LGM, Heinrich event 1, Bφlling-Allerφd (B/A), and Younger Dryas. For the Holocene, three periods of strong precipitation (S1-S3) and three periods of weak precipitation (W1-W3) are identified. The oxygen isotopic record exhibits corre-lation with climate records from distant regions, including the high-latitude Northern Hemisphere, providing evidence for global tele-connection among regional climate. A brief, negative planktonic foraminiferal carbon isotopic excursion during B/A reflects increased methane released from marine gas hydrate due to the rapid warming of the water. By comparing calcium carbonate content curves of the core ZHS-176 with these of other five boreholes lying above the lysocline, a remarkable low calcium carbonate event is found during the early Holocene in NSCS. | GE Qian CHU Fengyou XUE Zuo LIU J Paul DU Yuansheng FANG Yinxia | 2010 | Acta Oceanologica Sinica2010，29，3： | 13 |
| 2 | Design and simulation of self-powered radio frequency identification (RFID) tags for mobile temperature monitoring显示文摘This paper presents a design for a self-powered radio frequency identification (RFID) tag with a thin film bulk acoustic reso- nating piezoelectric power supply (PPS), which can be used for portable remote temperature monitoring. We call this system a PPS-RFID for short. The RFID systems have been found to have many applications in the internet of things (IOT) in the past decade. But semi-active RFID tags require an onboard battery which limits their applications in many fields. For these reasons, our research focuses on power sources for the RFID tags. This paper emphasizes the circuit design and simulation of PPS. In our tests, 0.283 mW was generated by PPS at 1 Hz vibration by a 650 N impact force. The results showed that the integrated PPS could supply sufficient power for the designed PPS-RFID tag. The PPS-RFID tag can be widely used for temperature monitoring during mobile transport of perishable items such as medicines or food. | CHU HeQun WU GuangMin CHEN JianMing FEI Fei MAI John D LI Wen J | 2013 | Science China(Technological Sciences)2013，56，1： | 6 |
| 3 | 笋芽顶端分生组织在竹秆横切面形态形成中的作用与机制研究显示文摘竹秆的横切面主要由表皮、皮层、维管组织、基本组织及髓腔(早期为髓组织)组成。这些组织均由笋芽茎顶端分生组织分化发育而来,且其在生长发育过程中促使了竹秆横切面形态(本文特指:竹秆横切面外轮廓形状、围度及壁-腔结构)的形成。然而,人们对于这一生长发育过程的生物学机制知之甚少。本研究利用解剖学、数学模拟等方法,对 20 种具不同秆径竹种的笋芽顶端分生组织进行了分析。研究结果发现,笋芽顶端分生组织指状形态的维持是竹子产生圆柱形竹秆的基础;在顶端分生组织细胞数目增加的同时,线性增加原体细胞数目应是竹子在演化过程中产生大径竹秆且保持规则壁-腔结构的方式。进一步通过研究一个竹壁增厚且壁-腔架构紊乱的稳定变异体———实肚竹( Phyllostachys nidularia f. farcta)发现,其笋芽顶端分生组织细胞数目减少且原体/原套细胞数比值降低使其产生了高比例的壁组分组织(指基本分生组织与肋状分生组织)与低比例的髓组织。上述 2 种组织的比例失衡,使得实肚竹笋芽在后续发育中壁组分组织随机挤入到了髓组织中,最终形成了实肚竹异常的竹秆横切面形态(竹壁多样化增厚且壁-腔结构紊乱)。此外,相对较小的顶端分生组织,使得实肚竹笋芽产生了较少的内源激素,如其生长素含量仅约为其原种篌竹的 67. 5%,各细胞分裂素含量也显著低于篌竹笋芽。转录组分析进一步发现,在实肚竹笋芽中与激素及代谢相关的功能基因呈显著下调表达。这些生理与分子变化最终导致了实肚竹竹秆矮化、秆径减小且生物量降低。本论文的研究结果为研究竹秆横切面发育提供了一个重要的视角,同时也为实肚竹厚壁茎秆的形成提出了一个合理的机制。 | Wang Y Sun X Ding Y Fei Z Jiao C Fan M Yao B Xin P Chu J Wei Q 王雨珺 魏强 | 2019 | 世界竹藤通讯2019，17，3： | 5 |
| 4 | Distribution of pericellular matrix molecules in the temporomandibular joint and their chondroprotective effects against inflammation显示文摘The objectives of this study were to(1) determine the distribution and synthesis of pericellular matrix(PCM) molecules(collagen VI, collagen IV and laminin) in rat temporomandibular joint(TMJ) and(2) investigate the effects of PCM molecules on chondrocytes against inflammation in osteoarthritis. Four zones(fibrous, proliferating, mature and hypertrophic) of condylar cartilage and three bands(anterior, intermediate and posterior) of disc were analysed by immunohistochemistry for the presence of PCM molecules in rat TMJs. Isolated chondrocytes were pre-treated with PCM molecules before being subjected to interleukin(IL)-1β treatment to stimulate inflammation. The responses of the chondrocytes were analysed using gene expression, nitric oxide release and matrix metalloproteinase(MMP)-13 production measures. Histomorphometric analyses revealed that the highest areal deposition of collagen VI(67.4%), collagen IV(45.7%) and laminin(52.4%) was in the proliferating zone of TMJ condylar cartilage. No significant difference in the distribution of PCM molecules was noted among the three bands of the TMJ disc. All three PCM molecules were expressed intracellularly by chondrocytes cultured in the monolayer. Among the PCM molecules, pre-treatment with collagen VI enhanced cellular proliferation, ameliorated IL-1β-induced MMP-3, MMP-9, MMP-13 and inducible nitric oxide synthase gene expression, and attenuated the downregulation of cartilage matrix genes, including collagen I, aggrecan and cartilage oligomeric matrix protein(COMP). Concurrently, collagen VI pretreatment inhibited nitric oxide and MMP-13 production. Our study demonstrates for the first time the distribution and role of PCM molecules, particularly collagen VI, in the protection of chondrocytes against inflammation. | Wern Cui Chu Shipin Zhang Timothy J Sng Yu Jie Ong Wen-Li Tan Vivien Y Ang Casper B Foldager Wei Seong Toh | 2017 | International Journal of Oral Science2017，9，1： | 5 |
| 5 | 岩石破裂以及破裂前信号的演变显示文摘地震是大量的岩石破裂事件。很多大地震之前都存在瞬态信号:电磁信号、磁场变化、电离层扰动、土壤导电率的变化以及其他震前信号。令监测人员奇怪的是,在震前短时间内一些震前信号会衰弱甚至消失不见。岩石中应力活化电流的发现提供了一个可能的解释,应力能够激活岩石中的移动电荷载体,即电子空位缺陷(electron va-cancy defects,EVD),也称空穴,用h.表示。h.相当于O2-中的O-,且以电钝性及休止的状态存在于无应力岩石中。当被激活时,h.沿着应力梯度方向流动,从而产生电流。在非常高的应力速率下,位错累积成微破裂,这正是灾变破裂的开始。当h.电荷载体无法再被激活时,震前破裂信号会明显衰弱。 | Freund F T Dahlgren R P Chu J j 张祯(译) 田家勇(校) | 2011 | 国际地震动态2011，，1： | 4 |
| 6 | Mechanism of embrittlement of Al alloy by liquid metal 显示文摘 | CHU W Y LIN X M LUO J L | 1999 | Canadian Metallurgical Quarterly1999，38，2： | 2 |
| 7 | Anti-hypertensive drugs in children and adolescents显示文摘Worldwide the prevalence of essential hypertension inchildren and adolescents continues to increase. Tradi-tionally providers have used 'off-label' drugs to treatpediatric hypertension, meaning that rigorous clinicaltrials of these drugs have not been specifically per-formed in pediatric patient populations. Consequentlyproviders have extrapolated dosing, safety and efficacyfrom trials in adults. This practice is sub-optimal as chil-dren demonstrate unique differences in drug metabo-lism and response. Use of unstudied or understudieddrugs increases risk of adverse events and/or can leadto sub-optimal efficacy. Recognizing these concerns,regulatory agencies have created financial incentivesfor industry to conduct pediatric clinical trials. Theseincentives, coupled with the emerging pediatric hyper-tension epidemic, have spurred over 30 clinical trialsof anti-hypertensive drugs over the past 15 years andhave resulted in labeling of 10 new drugs by the UnitedStates Food and Drug Administration for treatment ofhypertension in children and adolescents. Unfortunatelythe financial incentive structures focus on newer drugsand drug classes. Consequently there is now a relativedearth of trial data for older but sometimes commonlyprescribed pediatric antihypertensive drugs. This article reviews recent pediatric antihypertensive drug trials with a focus on trial design and endpoints, drug dosing, safety, efficacy and specific drug indications. We also review the available data and experience for some of the more commonly prescribed, but less well studied 'older' pediatric antihypertensive drugs. | Patricia Y Chu Michael J Campbell Stephen G Miller Kevin D Hill | 2014 | World Journal of Cardiology2014，6，5： | 2 |
| 8 | Identification of isomorphism among kinematic chains and inversions using link's adjacent-chain-table显示文摘 | Chu J K Cao W Q | 1994 | Mechanism and Machine Theory1994，29，1： | 2 |
| 9 | Molecular cloning, expression and phylogenetic analyses of parvalbumin in tilapia, Oreochromis mossambicus显示文摘 | Lee S J Ju C C Chu S L | 2007 | J Exp Zool2007，307，1： | 1 |
| 10 | Suppression of tumor necrosis factor-induced cell death by inhibitor of apoptosis c - IAP2 is under NF-kappa B control 显示文摘 | Chu Z L Mckinsey T A Lia L Gentry J J Malim M H Ballard D W | 1997 | PNAS1997，94，10： | 1 |
| 11 | Immobilized catalase reactor for use in peroxide sterilization of dairy products显示文摘 | Chu H D Leeder J G Gilbert S G | 2006 | Journal of Food Science2006，40，3： | 1 |
| 12 | Identification of isomorphism among kinematic chains and inversions using linkvs adjacent - chain - table 显示文摘 | Chu J K Cao W Q | 1994 | Mechanism and Machine Theory1994，29，1： | 1 |
| 13 | 显示文摘 | Chu J P | 2002 | Intermetallics2002，10，1112： | 1 |
| 14 | Prevalence of Malnu trition and Its Risk Factors in Stroke Patients Resi ding in an Infirmar显示文摘 | Chai J Chu FC Chow TW | 2008 | Singapore Med J(S0192- 415X)2008，49，29： | 1 |
| 15 | Regulatory CD4^+ CD25^+ T ceils in tumors from patients with early-stage non-small cell lung cancer and latestage ovarian cancer显示文摘 | Woo E Y Chu C S Goletz T J | 2001 | Cancer Res2001，61，： | 1 |
| 16 | Strategic information sharing in a supply chain显示文摘 | Chu W H J Lee C C | 2006 | European Journal of Operational Research2006，174，： | 1 |
| 17 | Numerical Analysis on Blast Furnace Performance Under Operation with Top Gas Recycling and Carbon Composite Agglomerates Charging显示文摘 | Nogami H Yagi J | 2004 | ISU International2004，44，12： | 1 |
| 18 | High aldehyde dehydrogenase and expression of cancer stein cell markers selects for breast cancer cells with enhanced malignant and metastatic ability 显示文摘 | Croker AK Goodale D Chu J | 2008 | J Cell Mol Med2008，4，4： | 1 |
| 19 | Manganese superoxide dismutase prorects against 6-hydroxydopamine injury in mouse brains显示文摘 | Callio J Oury TD Chu CT | 2005 | J Biol Chem2005，280，18： | 1 |
| 20 | Tetrachelate porphyrin chromophores for metal oxide semiconductor sensitization:Effect of the spacer length and anchoring group position显示文摘 | Rochford J Chu D Hagfeldt A | 2007 | J Am Chem Soc2007，129，15： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员