|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Real-Time H.265/HEVC Intra Encoding with a Configurable Architecture on FPGA Platform显示文摘This paper proposes a flexible design scheme for H.265/HEVC encoding based on FPGA, which allows an easy incorporation of a variety of algorithms applied to different scenarios. In particular, we present an H.265/HEVC intra encoder as an instantiation of our proposed scheme. The key idea is to develop an encoder system by configuring basic Processing elements(PEs) of fundamental algorithms. Our intra encoder using the flexible framework is structured with fourstage CTU based pipeline. Pixel-level PEs are designed to unify the intra prediction of 35 modes and a multiscale compatible transform array is proposed to process variable size transform. 32 PEs are paralleled for intra mode decision to support 35 combinations of modes and partitions. In the reconstruction stage, 16 PEs are paralleled for intra prediction and a 16 × 16 multiplier array is configured for transforms of variable sizes with a constant 16 pixels/cycle throughput. Implementation results show that our proposed architecture costs about63 K Lookup tables and 62 KB on-chip memories on Xilinx Kintex-7 platform with the maximum working frequency at 175 MHz, which is sufficient for real-time encoding of 1920 × 1080 @60 fps video at 160 MHz. The flexibility and extension capability of our framework provides a great potential for future FPGA solutions serving for different purposes. | DING Dandan WANG Silong LIU Zoe YUAN Qingshu | 2019 | Chinese Journal of Electronics2019，28，5： | 2 |
| 2 | THE CO-RELATIONSHIP BETWEEN NEIGUAN POINT AND THE HEART AND REGULATION OF AMYGDALOID NUCLEI显示文摘In this present study, the ruodel of the rabbit with acute myocardial ischemia(AMI) was used to explore mechanisms of interrelation hetween Neiguan acupoint (PC 6) of the Peri-cardium Meridian and the heart hy employing physiological and morphologicaI methods. It wasdemonstrated that electroacupuncture (EA) at Neiguan (PC 6 ) couId raise the eIectrical excitahility ofischemic myocardium, lessen the dispersity of recovery excitability, correct the disorder of electricalactivity; protect myocardiac glycogen and phosphorylase and alleviate their depletion, increase contentof ribonuclei acid (RNA ), etc., indicating that EA could help oxidative rnetaholism carry out normal-Iy and irnProve nutritional state of the ischemic myocardiurn. The key point of EA action is probablyregulates the coronary microclrculation of heart and reclistributes myocardial blood flow. Studies withalkaline phosphatase (ALP ), Mg2--ATPase and ABS casting of the Ieft coronary artery showed thatafter EA the number and the Iength | Cao Qingshu, Wen Shen, Liu Junling, Han Zhenjing, Chen ShupingInstitute of Acupuncture and Moxibustion , China Academy of TCM, Beijing 100700 , China | 1995 | World Journal of Acupuncture-Moxibustion1995，5，2： | 1 |
| 3 | Distributionand transportation of polycyclic aromatic hydrocarbons(PAHs) at the Humen river mouth in the Pearl River deltaand their influencing factors显示文摘 | LIU Feng YANG Qingshu HU Yujie | 2014 | Marine Pollution Bulletin2014，84，1： | 1 |
| 4 | Metallo-aerogels derived from chitosan with encapsulated metal nanoparticles as robust,efficient and selective nanocatalysts towards reduction of nitroarenes显示文摘A series of robust metallo-aerogels are readily fabricated by pyrolysis of xerogels derived from chitosan-metal(M=Fe,Co,Ni)hydrogels.Owing to the strong coordination between metal ions and the functional groups(NH2 and OH)of chitosan,metallo-aerogels consisting of encapsulated metal-nanoparticles(MNPs)by graphite shells were obtained,as supported by various characterizations including high-resolution transmission electron microscope(HR-TEM),X-ray diffraction(XRD),and Raman.The resulting metalloaerogels could be functioned as highly stable,efficient and selective nanocatalysts towards the hydrogenation of nitroarenes to amines at low catalyst loading(1.2 mol.%-2.4 mol.%).Remarkably,the metallo-aerogels could be reused for more than 30 runs without obvious loss of activity and selectivity.These distinguished performances were attributed to the graphitic shells formed during the pyrolysis,which hampered the possible aggregation of MNPs,prevented metal leaching and increased their stability. | Yajing Shen Qingshu Zheng Jianhong Liu Tao Tu | 2021 | Nano Research2021，14，1： | 1 |
| 5 | Mechanisms on Correlation between the Pericardium Meridian and Heart Effects of Electroacupuncture at Neiguan and Other Acupo显示文摘MechanismsonCorrelationbetweenthePericardiumMeridianandHeartEffectsofElectroacupunctureatNeiguanandOtherAcupointsonAcuteMyoca... | Cao Qingshu Liu Junling Wen Shen Liu Rutting Zhuang Ding(Institute of Acupuncture and Moxibustion, China Academyof Traditional Chinese Medicine, Beijing 100700) | 1995 | 中国针灸1995，15，S2： | 1 |
| 6 | Visual recognition of melamine in milk via selective metallo-hydrogel formation显示文摘A series of novel six-coordinated terpyridine zinc complexes,containing ammonium salts and thymine fragment at the two terminals,have been designed and synthesized,which can function as highly sensitive visualized sensors for melamine detection via selective metallo-hydrogel formation.After fully characterization by various techniques,the complementary triple-hydrogen-bonding between the thymine fragment and melamine,as well as π-π stacking interactions may be responsible for the selective metallo-hydrogel formation.In light of the possible interference aroused by milk ingredients(proteins,peptides and amino acids) and legal/illegal additives(urine,sugars and vitamins),a series of control experiments are therefore involved.To our delight,this visual recognition is highly selective,no gelation was observed with the selected milk ingredients or additives.Remarkably,this new developed protocol enables convenient and highly selective visual recognition of melamine at a concentration as low as 10 ppm in raw milk without any tedious pretreatment. | Xiaoling Bao Jianhong Liu Qingshu Zheng Wei Pei Yimei Yang Yanyun Dai Tao Tu | 2019 | Chinese Chemical Letters2019，30，12： | 0 |
| 7 | Colorimetric recognition of melamine in milk using novel pincer zinc complex stabilized gold nanoparticles显示文摘A convenient colorimetric approach for visual detection of melamine in raw milk was realized by using gold nanoparticles(AuNPs)stabilized by an unsymmetrical terpyridyl zinc complex with a thymine fragment at one terminal and a quaternary ammonium salt at the other.Even without pre-addition of melamine or relative additives,obvious color change from red to blue was observed by naked eye in the presence of trace amount of melamine,which was attributed to the alternation of aggregation state of AuNPs caused by the selective binding between the thymine fragment and melamine via triple hydrogenbonding interactions.Remarkably,the detection limit for melamine was as low as 2.4 ppb,providing a highly sensitive and efficient approach for the visual detection of melamine. | Xiaoling Bao Jianhong Liu Qingshu Zheng Lixin Duan Yuzhu Zhang Junlong Qian Tao Tu | 2021 | Chinese Chemical Letters2021，32，10： | 0 |
| 8 | A recombineering system for Bacillus subtilis based on the native phage recombinase pair YqaJ/YqaK显示文摘Bacillus subtilis plays an important role in fundamental and applied research,and it has been widely used as a cell factory for the production of enzymes,antimicrobial materials,and chemicals for agriculture,medicine,and industry.However,genetic manipulation tools for B.subtilis have low efficiency.In this work,our goal was to develop a simple recombineering system for B.subtilis.We showed that genome editing can be achieved in B.subtiliis 1A751 through co-expression of YqaJ/YqaK,a native phage recombinase pair found in B.sub-tilis 168,and the competence master regulator ComK using a double-stranded DNA substrate with short ho-mology arms(100 bp)and a phosphorothioate modification at the 5′-end.Efficient gene knockouts and large DNA insertions were achieved using this new recombineering system in B.subtilis 1A751.As far as we know,this is the first recombineering system using the native phage recombinase pair YqaJ/YqaK in B.subtilis.In conclusion,this new recombineering system provides a simple and fast tool for genetic manipulation of B.sub-tilis,and it will promote studies of genome function,construction of production strains,and genome mining in B.subtilis. | Qingshu Liu Ruijuan Li Hongbo Shi Runyu Yang Qiyao Shen Qingwen Cui Xiuling Wang Aiying Li Youming Zhang Jun Fu | 2023 | Engineering Microbiology2023，3，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员