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Room-temperature hydrogen adsorption in Pd nanoparticle decorated UiO-66-NH2 via spillover

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Particuology 2024年第10期93卷 309-315页

作者： Jingchuan Wang Junhong Luo yong yao Jiangfeng Song Yan Shi Institute of Materials China Academy of Engineering PhysicsJiangyou621908China

To improve room-temperature hydrogen storage, palladium (Pd) nanoparticles were innovatively decorated by carbon bridge onto the amino-group functioned Zr-terephthalate metal-organic framework (MOF) UiO-66 to reduce the diffusion energy barrier and then improve the hydrogen spillover effect. Powder X-ray diffraction shows broad Pd peak and retained UiO-66-NH_(2) integrity after Pd decoration. The hydrogen uptake capacity show that UiO-66-NH_(2)-Pd exhibits best hydrogen storage performance than UiO-66-NH_(2) and pristine UiO-66. The hydrogen up taken in Pd decorated UiO-66 (UiO-66-NH_(2)-1Pd) was close to 4 wt% under 20 MPa at room temperature. Density functional theory (DFT) calculations show that hydrogen adsorption energy of UiO-66-NH_(2)-Pd was −0.5897 eV, which was much lower than that of UiO-66-NH_(2) (−0.3716 eV) and UiO-66 (−0.2975 eV). Ultimately, Pd decorated NH_(2) group functioned UiO-66 enable improve storage capacities through hydrogen spillover under ambient conditions which could satisfy the demand for sustainable energy, especially for the long-term storage energy media.

关键词： Hydrogen storage UiO-66-NH_(2) Pd decorated Spillover

CD87-targeted BiTE and CAR-T cells potently inhibit invasive nonfunctional pituitary adenomas

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Science China(Life Sciences) 2024年第10期67卷 2169-2185页

作者： Yuan Ren Xinjie Bao Ming Feng Bing Xing Wei Lian yong yao Renzhi Wang Department of Neurosurgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China

Recently,bispecific T-cell engagers(BiTEs)and chimeric antigen receptor-modified T cells(CAR-Ts)have been shown to have high therapeutic efficacy in hematological ***87 is highly expressed in solid tumors with an oncogenic *** assess their cytotoxic effects on invasive nonfunctioning pituitary adenomas(iNFPAs),we first examined CD87 expression and its effects on the metabolism of iNFPA *** generated CD87-specific BiTE and CAR/IL-12 T cells,and their cytotoxic effects on iNFPAs cells and in mouse models were ***87 had high expression in i NFPA tissue and cell samples but was undetected in noncancerous brain ***87×CD3 BiTE and CD87 CAR/IL-12 T-cells showed antigenic specificity and exerted satisfactory cytotoxic effects,decreasing tumor cell proliferation in vitro and reducing existing tumors in experimental ***,the above findings suggest that CD87 is a promising target for the immunotherapeutic management of iNFPAs using anti-CD87 BiTE and CD87-specific CAR/IL-12 T cells.

关键词： CD87 chimeric antigen receptor T cells invasive non-functional pituitary adenomas bispecific T cell engager Warburg effect

Pillar[5]arene based artificial light-harvesting supramolecular polymer for efficient and recyclable photocatalytic applications

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Chinese Chemical Letters 2024年第9期35卷 179-182页

作者： Lei Zhou Youjun Zhou Lizhen Fang Yiqiao Bai Yujia Meng Liang Li Jie Yang yong yao School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China School of Chemistry and Chemical Engineering Nantong City Key Laboratory of Life-Organic ChemistryNantong UniversityNantong 226019China College of Science Nanjing Forestry UniversityNanjing 210037China

Photosynthesis is the process through which living plants utilize photosynthetic pigments,such as chlorophyll,to convert CO_(2)and water into organic compounds and release O_(2)under visible *** this study,we have successfully constructed a fluorescent supramolecular polymer(P5Py_(2)/Zn/Gen)n by employing orthogonal pillar[5]arene-based molecular recognition and metal ion *** the supramolecular polymer,the guest molecule Gen unit acts as a light-harvesting moiety,as the ACQ effect is inhibited by host-guest interactions,while the(Py)_(2)/Zn center serves as a catalytic *** employing this orthogonal self-assembly strategy,we have enhanced the stability of both the donor and acceptor in catalyzing the reduction of p-nitrophenol to ***,this photocatalyst can be reused at least 5 times without significant conversion *** findings provide a pathway for constructing a recyclable artificial LHS that mimics the entire photosynthesis process.

关键词： Pillararenes Light-harvest Supramolecular polymer Photosynthesis Orthogonal self-assembly

英国驻云南腾越领事娄斯与“麦克马洪线”的关系探析

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中国边疆史地研究 2024年第2期34卷 138-148,224页

作者：姚勇四川大学国际关系学院、中国西部边疆安全与发展协同创新中心 610065

娄斯是清末在中国西南边疆活跃的英国外交官、情报官。他作为英国驻腾越领事,推动英军入侵滇缅北段未定界地区;作为英国皇家地理学会会员,最早公开发表文章、编制地图将达旺地区画入印度;作为“中国事务顾问”,全程参与“西姆拉会议”... 详细信息

娄斯是清末在中国西南边疆活跃的英国外交官、情报官。他作为英国驻腾越领事,推动英军入侵滇缅北段未定界地区;作为英国皇家地理学会会员,最早公开发表文章、编制地图将达旺地区画入印度;作为“中国事务顾问”,全程参与“西姆拉会议”的谈判。娄斯的个案展现了中缅边界问题与中印边界问题的共生关系,以及英国驻华外交官与印度殖民官员的密切联系与合作,殖民知识与殖民扩张融为一体的现象。

关键词：娄斯中缅边界 “麦克马洪线”

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朱熹诠释“不迁怒”的伦理意蕴

道德与文明 2024年第2期 101-109页

作者：姚勇中南大学人文学院哲学系湖南长沙410083

孔子将“不迁怒”看作“好学”的主要表征之一,朱熹则深入阐发了“不迁怒”的伦理意蕴。通过区分心性论层面的“有怒”与境界论层面的“无怒”,朱熹肯定了怒之存在及其活动。经由界说“迁”的含义与所指,朱熹认为“迁怒”的含义是怒之... 详细信息

孔子将“不迁怒”看作“好学”的主要表征之一,朱熹则深入阐发了“不迁怒”的伦理意蕴。通过区分心性论层面的“有怒”与境界论层面的“无怒”,朱熹肯定了怒之存在及其活动。经由界说“迁”的含义与所指,朱熹认为“迁怒”的含义是怒之主体在怒之活动的进展过程中将怒之对象由甲迁移至乙;借由区别怒之原因与“迁怒”的原因,朱熹认为“私意”是导致“迁怒”的根本原因。根据朱熹的理解,“克己复礼”是矫治“迁怒”的根本工夫;“见得道理透”则是矫治“迁怒”的充分条件,能使“克去私意”的行动者辨识行动的对象、认可行动的根据、坚定行动的意志,从而获得充沛的动力。朱熹对于“不迁怒”的诠释,深化了儒学关于情绪活动与成德工夫的探讨。

关键词：朱熹不迁怒私意克己复礼见得道理透

Janus-Helmholtz换能器的振动模态谐振频率理论分析研究

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物理学报 2024年第3期73卷 143-152页

作者：张羿双桑永杰陈永耀吴帅哈尔滨工程大学水声技术全国重点实验室哈尔滨150001 海洋信息获取与安全工业和信息化部重点实验室(哈尔滨工程大学) 哈尔滨150001 哈尔滨工程大学水声工程学院哈尔滨150001 青岛哈尔滨工程大学创新发展中心青岛266000

Janus-Helmholtz换能器利用驱动振子纵向谐振与Helmholtz谐振腔的液腔谐振耦合,具有大功率、宽带声发射特性.传统观点认为导纳曲线中低频谐振峰对应液腔谐振频率,而高频谐振峰对应纵振动谐振频率,然而大量的实验研究发现该结论存疑.本... 详细信息

Janus-Helmholtz换能器利用驱动振子纵向谐振与Helmholtz谐振腔的液腔谐振耦合,具有大功率、宽带声发射特性.传统观点认为导纳曲线中低频谐振峰对应液腔谐振频率,而高频谐振峰对应纵振动谐振频率,然而大量的实验研究发现该结论存疑.本文结合一只Janus-Helmholtz换能器实验样机的实验结果,运用等效电路法结合有限元法分析并求解了驱动振子纵向模态的谐振频率,使用有限元法分析并求解了Helmholtz谐振腔的液腔谐振频率.研究结果表明,与传统观点相反,导纳曲线中第1个谐振峰为驱动振子的纵向谐振,第2个谐振峰为Helmholtz谐振腔的液腔谐振;Janus换能器4个大尺寸辐射面带来的可观辐射质量是造成纵向振动谐振频率在水中大幅度下降的原因;Janus-Helmholtz换能器中存在两个等体积的Helmholtz共振腔而非传统认为的仅存在一个共振腔.这些结论对于正确认识Janus-Helmholtz换能器的结构及性能特性起到了正本清源的作用,也为优化创新该换能器的结构、改善换能器的声发射特性提供了技术支撑.

关键词： Janus-Helmholtz换能器谐振频率等效电路法辐射质量

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On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings

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Photonics Research 2024年第5期12卷 979-985页

作者： JINZHAO WANG TING LI YANG FENG JIEWEN LI WANXIN LI LUWEI DING yong yao JIANAN DUAN WEI LIU FENG HE YI ZOU XIAOCHUAN XU Guangdong Provincial Key Laboratory of Integrated Photonic-Electronic Chip Guangdong Provincial Key Laboratory of Aerospace Communication and Networking TechnologyHarbin Institute of TechnologyShenzhenShenzhen 518055China School of Information Science and Technology ShanghaiTech UniversityShanghai 201210China

Bragg filters are of essential importance for chip-scale photonic ***,the implementation of filters with sub-nanometer bandwidth and rejection beyond 70 dB is hindered by the high index contrast of the siliconon-insulator platform,which makes filters prone to fabrication *** this paper,we propose to combine coherency-broken cascading architecture and cladding modulation to circumvent the intrinsic *** cascading architecture effectively prevents the accumulation of phase errors,while the cladding modulation offers additional design freedom to reduce the coupling coefficient.A bimodal Bragg filter with a testingequipment-limited rejection level of 74 dB and a 40 dB bandwidth of 0.44 nm is experimentally *** minimum feature size is 90 nm,which significantly relieves the fabrication constraints.

关键词： filter cladding narrow

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带零点的非负系数Bernstein展开

系统科学与数学 2024年第5期44卷 1282-1291页

作者：徐嘉姚勇秦小林西南民族大学数学学院成都610041 中国科学院成都计算机应用研究所成都610213

一个熟知的结论是说,如果多项式f∈R[x]在单位方体In=[0,1]^(n)上的值是严格正的,则f可以用带正系数的Bernstein基表示.但是,当f在单位方体I^(n)上存在零点时,上述结论不再成立.文章研究了f带有角零点(单位方体的顶点)的情况,找到了在... 详细信息

一个熟知的结论是说,如果多项式f∈R[x]在单位方体In=[0,1]^(n)上的值是严格正的,则f可以用带正系数的Bernstein基表示.但是,当f在单位方体I^(n)上存在零点时,上述结论不再成立.文章研究了f带有角零点(单位方体的顶点)的情况,找到了在仅有角零点的假设下f存在非负系数的Bernstein展开需要满足的充分必要条件.文章通过引入d-多重型,将问题转化为d-多重型的系数问题.

关键词： Bernstein展开非负系数多项式 d-多重型

V型三能级金刚石氮空位色心电磁诱导透明体系中孤子的存取

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物理学报 2024年第10期73卷 307-314页

作者：谭聪王登龙董耀勇丁建文湘潭大学物理与光电工程学院湘潭411105 广东工业大学机电工程学院广州510006

本文先构建一束弱探测场和一束强控制场所形成的V型三能级金刚石氮空位(NV)色心电磁诱导透明(EIT)模型,随后研究探测场在体系的线性吸收和非线性传播特性.结果表明,一旦开启强控制场,体系就会呈现出EIT窗口,且透明窗口的宽度随着控制场... 详细信息

本文先构建一束弱探测场和一束强控制场所形成的V型三能级金刚石氮空位(NV)色心电磁诱导透明(EIT)模型,随后研究探测场在体系的线性吸收和非线性传播特性.结果表明,一旦开启强控制场,体系就会呈现出EIT窗口,且透明窗口的宽度随着控制场磁感应强度的增加而变宽.在非线性情况下,探测场能形成稳定传播的孤子,且可通过开启和关闭控制场的磁场实现孤子的存储和读取,可以有效地克服冷原子介质和量子点介质孤子存取的缺陷.值得一提的是,体系所存取孤子的振幅还可以通过控制场的磁感应强度来进行调节.

关键词：金刚石氮空位色心孤子的存储与读取电磁诱导透明