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On the first negative Hecke eigenvalue of an automorphic representation of GL_(2)(A_(Q))

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Science China Mathematics 2021年第11期64卷 2381-2394页

作者： Yuk-Kam lau ming Ho ng Hengcai Tang Yingnan Wang Department of Mathematics The University of Hong KongHong KongChina Department of Mathematics The Chinese University of Hong KongHong KongChina Institute of Modern Mathematics School of Mathematics and StatisticsHenan UniversityKaifeng 475004China Shenzhen Key Laboratory of Advanced Machine Learning and Applications College of Mathematics and StatisticsShenzhen UniversityShenzhen 518060China

Letπbe a self-dual irreducible cuspidal automorphic representation of GL_(2)(A_(Q))with trivial central *** Hecke eigenvalue λπ(n)is a real multiplicative function in *** show that λπ(n)<0 for some n< 详细信息

关键词： automorphic representation Hecke eigenvalue Maass cusp form sign change

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The first draft genome assembly and data analysis of the Malaysian mahseer (Tor tambroides)

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Aquaculture and Fisheries 2023年第5期8卷 481-491页

作者： Melinda Mei Lin lau Leonard Whye Kit Lim Hung Hui Chung Han ming Gan Faculty of Resource Science and Technology Universiti Malaysia SarawakKota SamarahanSarawak94300Malaysia GeneSEQ Sdn Bhd Bandar Bukit BeruntungRawangSelangor48300Malaysia Centre for Integrative Ecology School of Life and Environmental SciencesDeakin UniversityGeelongVictoriaVIC3220Australia

The Malaysian mahseer(Tor tambroides),one of the most valuable freshwater fish in the world,is mainly targeted for human *** mitogenomic data of this species is available to date,but the genomic information is still *** the first time,we sequenced the whole genome of an adult fish on both Illumina and nanopore *** hybrid genome assembly had resulted in a sum of 1.23 Gb genomic sequence from the 44,726 contigs found with 44 kb n50 length and BUSCO genome completeness of 87.6%.Four types of SSRs had been detected and identified within the genome with a greater AT abundance than that of *** protein sequences had been functionally annotated to public databases,namely GO,KEGG and COG.A maximum likelihood phylogenomic tree containing 52 Actinopterygii species and one Sarcopterygii species as outgroup was constructed,providing first insights into the genome-based evolutionary relationship of *** with other ray-finned *** data are crucial in facilitating the study of population genomics,species identification,morphological variations,and evolutionary biology,which are helpful in the conservation of this species.

关键词： Genome Gene annotation Tor tambroides Phylogenetic Functional annotation

On-chip single-photon chirality encircling exceptional points

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Chip 2023年第4期2卷 71-77页

作者： Zhen-nan Tian Feng Yu Xu-Lin Zhang Kai ming lau Li-Cheng Wang Jensen Li C.T.Chan Qi-Dai Chen State Key Laboratory of Integrated Optoelectronics College of Electronic Sci-ence and EngineeringJilin UniversityChangchun 130012China Department of Physics The Hong Kong University of Science and TechnologyClear Water BayHong Kong 999077China

Exceptional points(EPs),which are typically defined as the degener-acy points of a non-Hermitian Hamiltonian,have been investigated in various physical systems such as photonic *** particular,the intriguing topological structures around EPs have given rise to novel strategies for manipulating photons and the underlying mechanism is especially useful for on-chip photonic *** some on-chip experiments with the adoption of lasers have been reported,EP-based photonic chips working in the quantum regime largely re-main *** the current work,a single-photon experiment was proposed to dynamically encircle an EP in on-chip photonic waveg-uides possessing passive anti-parity-time *** coinci-dences measurement reveals a chiral feature of transporting single photons,which can act as a building block for on-chip quantum de-vices that require asymmetric *** findings in the cur-rent work pave the way for on-chip experimental study on the physics of EPs as well as inspiring applications for on-chip non-Hermitian quantum devices.

关键词： non-Hermitian photonics Photonic chip Exceptional points Single photons

The Inhibiting Effect of Arsenic on Dezincification of α-Brass

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Science in China,Ser.A 1963年第11期 1764-1766页

作者：陈俊明朱相荣 Institute of Metallurgy Academia Sinica

Although it has been known that the addition of a small quantity of arsenic to a-brass can retard dezincification of the latter, the mechanism of retardation is still not clearly known. The work described in the present paper was carried out in an attempt to partly uncover the underlying mechanism. CuCl2 solution（0.1M）was used as the corroding medium for studying the variation of corrosion rates of 70—30 a-brass alloyed with different amounts of arsenic. The results show that both dezincification and corrosion rate of a-brass dropped sharply with increasing arsenic

关键词： The Inhibiting Effect of Arsenic on Dezincification of Brass

Hierarchical Polygamy Inequality for Entanglement of tsallis q-Entropy

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Communications in Theoretical Physics 2018年第5期69卷 532-536页

作者： Yu Luo Yong-ming Li College of Computer Science Shaanxi Normal UniversityXi'an 710062China Centre for Quantum Software and Information(Uts:Q|SI>) Faculty of Engineering and Information TechnologyUniversity of Technology SydneyAustralia

In this paper, we study the polygamy inequality of quantum entanglement in terms of tsallis *** first give a lower bound of tsallis q-entropy entanglement of assistance(TOA) in the 2  d systems. The relationships between tsallis q-entropy entanglement(TEE) and TOA are also given. Furthermore, we prove TOA follows a hierarchical polygamy inequality in a 2  2  2^(n-2) systems.

关键词： polygamy entanglement tsallis q-entropy

Scalable volumetric imaging for ultrahigh-speed brain mapping at synaptic resolution

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national Science Review 2019年第5期6卷 982-992页

作者： Hao Wang Qingyuan Zhu Lufeng Ding Yan Shen Chao-Yu Yang Fang Xu Chang Shu Yujie Guo Zhiwei Xiong Qinghong Shan Fan Jia Peng Su Qian-Ru Yang Bing Li Yuxiao Cheng Xiaobin He Xi Chen Feng Wu Jiang-ning Zhou Fuqiang Xu Hua Han Pak-ming lau Guo-Qiang Bi Hefei national Laboratory for Physical Sciences at the Microscale and School of Life SciencesUniversity of Science and Technology of China CAS Key Laboratory of Brain Function and Disease and School of Life Sciences University of Science and Technology of China Institute of Automation Chinese Academy of Sciences University of Chinese Academy of Sciences School of Information Science and Technology University of Science and Technology of China national Engineering Laboratory for Brain-inspired Intelligence Technology and Application University of Science and Technology of China Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences CAS Center for Excellence in Brain Science and Intelligence Technology

The speed of high-resolution optical imaging has been a rate-limiting factor for meso-scale mapping of brain structures and functional circuits, which is of fundamental importance for neuroscience ***, we describe a new microscopy method of Volumetric Imaging with Synchronized on-the-fly-scan and Readout(VISo R) for high-throughput, high-quality brain *** synchronized scanning beam illumination and oblique imaging over cleared tissue sections in smooth motion, the VISo R system effectively eliminates motion blur to obtain undistorted *** continuously imaging moving samples without stopping, the system achieves high-speed 3D image acquisition of an entire mouse brain within1.5 hours, at a resolution capable of visualizing synaptic spines.A pipeline is developed for sample preparation, imaging, 3D image reconstruction and *** approach is compatible with immunofluorescence methods, enabling flexible cell-type specific brain mapping and is readily scalable for large biological samples such as primate *** this system, we examined behaviorally relevant whole-brain neuronal activation in 16 c-Fos-sh EGFP mice under resting or forced swimming *** results indicate the involvement of multiple subcortical areas in stress ***, neuronal activation in these areas exhibits striking individual variability among different animals, suggesting the necessity of sufficient cohort size for such studies.

关键词： fluorescence microscopy brain mapping tissue clearing immunostaining activity trace mapping

Expressions of Thymidylate Synthase, Thymidine Phosphorylase, Class Ⅲ β-tubulin, and Excision Repair Cross-complementing Group 1 Predict Response in Advanced Gastric Cancer Patients Receiving Capecitabine Plus Paclitaxel or Cisplatin

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Chinese Journal of Cancer Research 2011年第4期23卷 288-294页

作者： ming Lu Jing Gao Xi-cheng Wang Lin Shen Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education) Department of Gastrointestinal OncologyPeking University School of Oncology Beijing Cancer Hospital & Institute Beijing 100142 China

Objective: To evaluate the role of class III β-tubulin (TUBB3), thymidylate synthase (ts), thymidine phosphorylase (TP), and excision repair cross-complementing group 1 (ERCC1) in clinical outcome of advanced gastric cancer patients receiving capecitabine plus paclitaxel or cisplatin. Methods: The clinical data and tumor specimens from 57 advanced gastric cancer patients receiving first-line capecitabine plus paclitaxel (cohort 1, n=36) and capecitabine plus cisplatin (cohort 2, n=21) were retrospectively collected, and TUBB3, ts, TP, and ERCC1 expressions were detected by real-time quantitative PCR. The associations between expressions of biomarkers and response or survival were analyzed statistically. Results: The median age of 57 patients was 57 years (range: 27–75 years) with 38 males and 19 females. Of all patients, the response rates of patients with high TP, low TP and high ts, low ts expressions were 57.1%, 27.6% (P=0.024), and 55.2%, 28.6% (P=0.042), respectively. Among cohort 1, the response rates and median overall survivals of patients with low and high TUBB3 expressions were 61.1% vs. 33.3% (P=0.095) and 13.8 months vs. 6.6 months (P=0.019), respectively; the response rate (87.5%) of patients with low TUBB3 and high TP expressions was higher than that (14.3%) of patients with high TUBB3 and low TP expressions (P=0.01). Among cohort 2, the response rates of patients with low ERCC1 and high ERCC1 expressions were 45.5% and 20.0% respectively (P=0.361). Conclusion: TUBB3, ts and TP expressions could predict the response of advanced gastric cancer patients receiving capecitabine-based and paclitaxel-based chemotherapy. These results will be further confirmed in future large samples.

关键词： Advanced gastric cancer ts/TP/TUBB3/ERCC1 Capecitabine Paclitaxel Cisplatin

Quantum tunneling of ultracold atoms in optical traps

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Frontiers of physics 2014年第2期9卷 137-152页

作者： Jian-Hua Wu Ran Qi An-Chun Ji Wu-ming Liu Beijing national Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China

We review our theoretical advances in quantum tunneling of BoseEinstein condensates in optical traps and in microcavities. By employing a real physical system, the frequencies of the pseudo Goldstone modes in different phases between two optical traps are studied respectivdy, which are tile crucial feature of the non-Abelian Joseptmon effect. When the optical lattices are under gravity, we investigate the quantum tummling in the ＂Wannier-Stark localization＂ regime and ＂Lan（lau Zener tunneling＂ regime. We finally get the total decay rate and the rate is valid over the entire range of temperatures. At high temperatures, we show how the decay rate reduces to the appropriate results for the classical thermal activation. At hltermediate temperatures, the results of tile total decay rate are consistent with the thermally assisted tunneling. At low temperatures, we obtain the pure quantmn tunneling ultimately. And we study the alternating-current and direct-current （ac and de） photonic 3osephson effects in two weakly linked microcavities containing ultracold two-level atones, which allows for direct observation of the effects. This enables new investigations of the effect of maw-body physics in strongly coupled atom-cavity systems and provides a strategy for constructing novel interference devices of coherent photons. In addition, we propose the experimental protocols to observe these quantmn tunneling of Bose- Einstein condensates.

关键词： quantum tunneling Josephson effect Landau-Zener tunneling atom-cavity

Agar-derived nitrogen-doped porous carbon as anode for construction of cost-effective lithium-ion batteries

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Chinese Chemical Letters 2023年第8期34卷 370-375页

作者： Tong Wang Jingquan Sha Wenwen Wang Yuhan Ji Zhi-ming Zhang Institute for new Energy Materials&Low Carbon Technologies School of Chemistry and Chemical EngineeringTianjin University of TechnologyTianjin 300384China School of Chemistry Chemical Engineering and MaterialsJining UniversityQufu 273100China

Balancing cost and performance of porous carbon(PC)as anode for lithium-ion battery(LIBs)is the key to effectively promote commercial ***,low-cost n-doped PC(nPC-ts,T=600,750 and 900°C)were facilely prepared in batches via one-pot pyrolysis of agar with different carbonization *** nPC-750 with specific surface area of 2914 m^(2)/g and n content of 2.84%exhibits an ultrahigh reversible capacity of 1019 mAh/g at 0.1 A/g after 100 cycles and 837 mAh/g at 1 A/g after 500 ***,the resulting LIBs exhibit an ultrafast charge-discharge feature with a remarkable capacity of 281 mAh/g at 10 A/g and a superlong cycle life with a capacity retention of 87%after 5000 cycles at 10 A/*** with LiFePO_(4)cathode,the fabricated lithium-ion full cells possess high capacity,excellent rate and cycling performances(125 mAh/g at 100 mA/g,capacity retention of 95%,after 220 cycles),highlighting the practicability of this nPC-750 as the anode materials.

关键词： Agar Porous carbon n-doping Anode Lithium-ion battery