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| 1 | Foundation Study on Wireless Big Data: Concept, Mining, Learning and Practices显示文摘Facing the development of future 5 G, the emerging technologies such as Internet of things, big data, cloud computing, and artificial intelligence is enhancing an explosive growth in data traffic. Radical changes in communication theory and implement technologies, the wireless communications and wireless networks have entered a new era. Among them, wireless big data(WBD) has tremendous value, and artificial intelligence(AI) gives unthinkable possibilities. However, in the big data development and artificial intelligence application groups, the lack of a sound theoretical foundation and mathematical methods is regarded as a real challenge that needs to be solved. From the basic problem of wireless communication, the interrelationship of demand, environment and ability, this paper intends to investigate the concept and data model of WBD, the wireless data mining, the wireless knowledge and wireless knowledge learning(WKL), and typical practices examples, to facilitate and open up more opportunities of WBD research and developments. Such research is beneficial for creating new theoretical foundation and emerging technologies of future wireless communications. | Jinkang Zhu Chen Gong Sihai Zhang Ming Zhao Wuyang Zhou | 2018 | China Communications2018，15，12： | 9 |
| 2 | Anti-hyperglycemic effects of dihydromyricetin in streptozotocin-induced diabetic rats显示文摘Dihydromyricetin(DHM),as a bioactive flavanonol compound,is mainly found in“Tengcha”(Ampelopsis grossedentata)cultivated in south of China.This study aimed to investigate the anti-hyperglycemic and antidyslipidemic activities of DHM using type 2 diabetes mellitus(T2D)rats,which was induced by feeding with high fat and fructose diet for 42 days and intraperitoneal administration of streptozocin.Forty-eight freshlyweaned rats were randomly assigned into the negative control(Blank),low dose(100 mg/kg),medium dose(200 mg/kg),high dose(400 mg/kg),and positive(40 mg/kg,met)groups.Fasting blood glucose and body weight were measured at weekly interval.Oral glucose tolerance tests were performed on days 42.The results revealed that DHM possessed significant antihyperglycaemic and antihyperinsulinemic effects.Moreover,after the DHM treatment,p-Akt and p-AMPK expression was upregulated,and glycogen synthase kinase-3β(GSK-3β)expression was downregulated,indicating that the potential anti-diabetic mechanism of DHM might be due to the regulation of the AMPK/Akt/GSK-3βsignaling pathway. | Maojun Yao Hui Teng Qiyan Lv Huifang Gao Tengming Guo Yiwen Lin Sihai Gao Meihu Ma Lei Chen | 2021 | Food Science and Human Wellness2021，10，2： | 6 |
| 3 | The RNA-binding protein Musashi2 governs osteoblast-adipocyte lineage commitment by suppressing PPARγsignaling显示文摘Osteoporosis caused by aging is characterized by reduced bone mass and accumulated adipocytes in the bone marrow cavity. How the balance between osteoblastogenesis and adipogenesis from bone marrow mesenchymal stem cells(BMSCs) is lost upon aging is still unclear. Here, we found that the RNA-binding protein Musashi2(Msi2) regulates BMSC lineage commitment. Msi2 is commonly enriched in stem cells and tumor cells. We found that its expression was downregulated during adipogenic differentiation and upregulated during osteogenic differentiation of BMSCs. Msi2 knockout mice exhibited decreased bone mass with substantial accumulation of marrow adipocytes, similar to aging-induced osteoporosis. Depletion of Msi2 in BMSCs led to increased adipocyte commitment. Transcriptional profiling analysis revealed that Msi2 deficiency led to increased PPARγ signaling.RNA-interacting protein immunoprecipitation assays demonstrated that Msi2 could inhibit the translation of the key adipogenic factor Cebpα, thereby inhibiting PPAR signaling. Furthermore, the expression of Msi2 decreased significantly during the aging process of mice, indicating that decreased Msi2 function during aging contributes to abnormal accumulation of adipocytes in bone marrow and osteoporosis. Thus, our results provide a putative biochemical mechanism for aging-related osteoporosis, suggesting that modulating Msi2 function may benefit the treatment of bone aging. | Jinlong Suo Sihai Zou Jinghui Wang Yujiao Han Lingli Zhang Chenchen Lv Bo Jiang Qian Ren Long Chen Lele Yang Ping Ji Xianyou Zheng Ping Hu Weiguo Zou | 2022 | Bone Research2022，10，3： | 5 |
| 4 | Light carbon isotope events of foraminifera attributed to methane release from gas hydrates on the continental slope, northeastern South China Sea显示文摘In 2013, the China Geological Survey and Guangzhou Marine Geological Survey conducted the second Chinese gas hydrate expedition in the northern South China Sea(SCS) and successfully obtained visible gas hydrate samples. Five of the thirteen drilling sites were cored for further research. In this work, Site GMGS2-08 is selected for the stable isotopic analysis of foraminifera present in the boreholes in order to reveal the carbon isotopic characteristics of the foraminifera and their response to methane release in the gas hydrate geological system. Our results show that the methane content at Site GMGS2-08 is extremely high, with headspace methane concentrations up to 39300 μmol L^(-1). The hydrocarbon δ^(13)C values, ranging from-69.4‰ to-72.3‰ PDB, distinctly indicate biogenic generation. Based on the δD analytical results(^(-1)83‰ to^(-1)85‰ SMOW), headspace methane is further discriminated to be microbial gas, derived from CO_2 reduction. By isotopic measurement, five light δ^(13)C events are found in the boreholes from Site GMGS2-08, with foraminiferal δ^(13)C values being apparently lower than the normal variation range found in the glacial-interglacial cycles of the SCS. The δ^(13)C values of benthic Uvigerina peregrina are extremely depleted(as low as^(-1)5.85‰ PDB), while those of planktonic Globigerinoides ruber reach-5.68‰ PDB. Scanning electron micrograph(SEM) studies show that foraminiferal tests have experienced post-depositional alteration, infilled with authigenic carbonate, and the diagenetic mineralization is unlikely to be related to the burial depths. The correlation calculation suggests that the anaerobic oxidation of organic matter has only weak influences on the δ^(13)C composition of benthic foraminifera. This means that the anomalous δ^(13)C depletions are predominantly attributed to the overprinting of secondary carbonates derived from the anaerobic oxidation of methane(AOM). Furthermore, the negative δ^(13)C anomalies, coupled with the positive δ18O anomalies observed at Site GMGS2-08, are most likely the critical pieces of evidence for gas hydrate dissociation in the geological history of the study area. | ZHUANG Chang CHEN Fang CHENG SiHai LU HongFeng WU Cong CAO Jun DUAN Xiao | 2016 | Science China Earth Sciences2016，59，10： | 4 |
| 5 | Novel sol-gel material for fabrication of a long period waveguide grating filter as a precise thermometer显示文摘A new kind of organic-inorganic hybrid HfO 2/SiO 2 sol-gel material with a large thermo-optic coefficient and a wide linear tunable temperature range has been developed for fabrication of a long period waveguide grating (LPWG) filter,whose parameters were optimized and designed by using finite difference time domain (FDTD) simulations.The LPWG filter,a periodic rectangle-corrugated grating structure,was easily fabricated with soft-lithography technique.At a temperature range from 19°C to 70°C,the fabricated LPWG filter element demonstrated a high temperature sensitivity of about 6.5 nm/°C and a wide linear tunable temperature range of 51°C,so that it can be used as a precise thermometer.Our results are useful for the designs of LPWG filters for the implementation of a wide range of thermo-optic functions. | WANG Xin LI XiaoChan ZHANG Tao HU CanDong ZHU QiuXiang CHEN SiHai LI Yun XU Jia HE Miao NIU QiaoLi ZHAO LingZhi LI ShuTi ZHANG Yong | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，11： | 2 |
| 6 | Reversi-ble Transference of Au Nanoparticles across the Waterand Toluene Interface : A Langmuir Type AdsorptionMechanism 显示文摘 | Sihai Chen Hiroshi Yao Keisaku Kimura | 2001 | Langmuir?2001，，17： | 1 |
| 7 | Based on the D-S evidence theory of regional power grid power quality assessment显示文摘 | Chen Tiemin Fu Chaohao Lin Sihai Sun Peijun Pu Qin | 2012 | power and energy2012，06，： | 1 |
| 8 | Optical switch basvd on vanadium dioxide thin films 显示文摘 | CHEN sihai MA Hong YI Xirrjian | 2004 | Infrared Physics Technology2004，45，4： | 1 |
| 9 | Bionic ommatidia based on microlens array显示文摘 | Liu Hao Chen Sihai Dong Shan | 2009 | Optical Engineering2009，48，6： | 1 |
| 10 | Synthesis and characterization of truncated triangular silver nanoplates显示文摘 | CHEN Sihai CARROLL D L | 2002 | Nano Letters2002，2，9： | 1 |
| 11 | High dielectric constant silver epoxy composites as embedded dielectrics 显示文摘 | Qi Lai Lee Burtrand I Chen Sihai | 2005 | Adv Mater2005，17，： | 1 |
| 12 | MOVPE Growth and Fabrication of 1.3μm High Power InGaAsP-InP Polarization-Insensitive Superluminescent Diodes with Complex Strained Quantum Wells显示文摘 | Hong Ma Sihai Chen Xinjian Yi Guangxi Zhu Jinyan Jin | 2004 | Optical and Quantum Electronics2004，，6： | 1 |
| 13 | Low temperature fabri- cation of vanadium oxide films for uncooled bolometric detectors 显示文摘 | WANG Hongchen YI Xinjian CHEN Sihai | 2006 | Infrared Physics & Technology2006，47，： | 1 |
| 14 | Morphology effects on the optical properties of silver nanoparticles显示文摘 | Sihai Chen Webster S Czerw R | 2004 | Journal of Nanoscience and Nanotechnology2004，4，3： | 1 |
| 15 | Optical switchbased on vanadium dioxide thin films 显示文摘 | Chen Sihai Ma Hong Yi Xinjian | 2004 | Infrared Physics &Technology2004，45，4： | 1 |
| 16 | Study on fast linear scanning for a new laser scanner显示文摘 | XIANG Sihua CHEN Sihai WU Xin | 2010 | Optics&Laser Technology2010，42，1： | 1 |
| 17 | Vanadium oxide thin films deposited on silicon dioxide buffer layers by magnetron sputtering 显示文摘 | Chen Sihai Ma Hong Wang Shuangbao | 2006 | Thin Solid Films2006，497，12： | 1 |
| 18 | Synthesis and characterization of truncated triangular silver nanoplates显示文摘 | Sihai Chen David L Carroll | 2002 | Nano Letters2002，2，9： | 1 |
| 19 | Smart VO2 thin film for protection of sensitive infrared detectors from strong laser radiation显示文摘 | Chen Sihai | 2004 | Sens Actuators A2004，115，1： | 1 |
| 20 | Vanadium oxide thin films deposited on silicon dioxide buffer layers by magnetron sputtering显示文摘 | CHEN Sihai MA Hong WANG Shuangbao | 2006 | Thin Solid Films2006，497，： | 1 |
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