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Probability density functions of quantum mechanical observable uncertainties

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Communications in Theoretical Physics 2022年第7期74卷 84-98页

作者： Lin Zhang Jinping Huang jiamei wang Shao-Ming Fei Institute of Mathematics Hangzhou Dianzi UniversityHangzhou 310018China Department of Mathematics Anhui University of TechnologyMa Anshan 243032China School of Mathematical Sciences Capital Normal UniversityBeijing 100048China

We study the uncertainties of quantum mechanical observables, quantified by the standard deviation(square root of variance) in Haar-distributed random pure states. We derive analytically the probability density functions(PDFs) of the uncertainties of arbitrary qubit *** on these PDFs, the uncertainty regions of the observables are characterized by the support of the PDFs. The state-independent uncertainty relations are then transformed into the optimization problems over uncertainty regions, which opens a new vista for studying stateindependent uncertainty relations. Our results may be generalized to multiple observable cases in higher dimensional spaces.

关键词： uncertainty of observable probability density function uncertainty region statindependent uncertainty relation

Remote loading paclitaxel-doxorubicin prodrug into liposomes for cancer combination therapy

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Acta Pharmaceutica Sinica B 2020年第9期10卷 1730-1740页

作者： Jiang Yu Yingli wang Shuang Zhou Jinbo Li jiamei wang Dongxu Chi Xue wang Guimei Lin Zhonggui He Yongjun wang Wuya College of Innovation Shenyang Pharmaceutical UniversityShenyang 110016China Department of Pharmaceutics Shenyang Pharmaceutical UniversityShenyang 110016China School of Pharmaceutical Science Shandong UniversityJinan 250012China

The combination of paclitaxel(PTX)and doxorubicin(DOX)has been widely used in the ***,it remains unsatisfied due to the generation of severe ***,we have successfully synthesized a prodrug PTX-S-DOX(PSD).The prodrug displayed comparable in vitro cytotoxicity compared with the mixture of free PTX and ***,we speculated that it could be promising to improve the anti-cancer effect and reduce adverse effects by improving the pharmacokinetics behavior of PSD and enhancing tumor *** to the fact that copper ions(Cu2+)could coordinate with the anthracene nucleus of DOX,we speculate that the prodrug PSD could be actively loaded into liposomes by Cu2+***,we designed a remote loading liposomal formulation of PSD(PSD LPs)for combination *** prepared PSD LPs displayed extended blood circulation,improved tumor accumulation,and more significant anti-tumor efficacy compared with PSD ***,PSD LPs exhibited reduced cardiotoxicity and kidney damage compared with the physical mixture of Taxol and Doxil,indicating better ***,this novel nano-platform provides a strategy to deliver doxorubicin with other poorly soluble antineoplastic drugs for combination therapy with high efficacy and low toxicity.

关键词： Combination therapy Nanoparticles Paclitaxel-doxorubicin prodrug Remote loading liposomes Prodrug Safety

Effects of Short Interpregnancy Intervals on Adverse Pregnancy Outcomes—Haidian District,Beijing Municipality,China,2017–2019

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China CDC weekly 2023年第35期5卷 767-772,I0001页

作者： Yuan Li Suhong Gao jiamei wang Hang An Le Zhang Yali Zhang Xiaohong Liu Zhiwen Li Institute of Reproductive and Child Health Peking University/Key Laboratory of Reproductive HealthNational Health Commission of the People’s Republic of ChinaBeijingChina Department of Epidemiology and Biostatistics School of Public HealthPeking UniversityBeijingChina Department of Child Health Beijing Haidian Maternal and Child Health HospitalBeijingChina Department of Gynaecology and Obstetrics Beijing Haidian Maternal and Child Health HospitalBeijingChina

Summary What is already known about this topic?Interpregnancy intervals(IPIs)that are either excessively long or short have been linked with an elevated risk of adverse perinatal ***,no pertinent guidelines have been established in China to provide clear direction with regard to optimal *** is added by this report?A brief interpregnancy interval may elevate the risk of miscarriage,postpartum hemorrhage,and fetal distress among expectant *** are the implications for public health practice?

关键词： pregnancy elevated distress

Ni/Co bimetallic organic frameworks nanospheres for highperformance electrochemical energy storage

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Nano Research 2024年第6期17卷 5122-5130页

作者： Jianru Guan Minlu Liu Limin Zhu jiamei wang Qing Han Xiaoxia Yang Weibo Hua Lingling Xie Xiaoyu Cao School of Chemistry and Chemical Engineering Key Laboratory of High Specific Energy Materials for Electrochemical Power Sources of Zhengzhou CityHenan University of TechnologyZhengzhou 450001China School of Chemical Engineering and Technology Xi’an Jiaotong UniversityXi’an 710049China School of Environmental Engineering Henan University of TechnologyZhengzhou 450001China

In addition to their many well-known advantages(e.g.,ultra-high porosity,good pore size distribution,easy functionalization,and structural tolerability),metal-organic frameworks(MOFs)are a new class of advanced functional ***,their backbones are highly susceptible to deformation after exposure to acidic or alkaline *** a result of lithium-ion batteries embedding or detaching directly from MOFs,they irreversibly *** a result,they fail to maintain their electrochemical *** factors have hindered the development of MOFs as direct electrode materials,making the design of MOF materials with controlled morphology and stable dimensions a new *** this study,we adopted a versatile and effective method to synthesize a novel MOF material(NiCo-BP(BP=BTC/phen and BTC=1,3,5-benzenetricarboxylic acid))using the rigid ligands 1,10-phenanthroline and homobenzotrizoic acid,and the emergence of the Ni-O/N and Co-O/N coordination layers was observed by extended X-ray absorption fine structure(EXAFS)tests,indicating that Ni and Co were coordinated with heterocyclic N-given atoms to form a stable p-πconjugated ***,the metal-ion is attached to the carboxylic acid ligand on the other side,making the metal-organic skeleton complete and *** nanosphere structure of NiCo-BP(~400 nm)allows for full exposure and utilisation of the active sites,especially the Ni,Co,and phenanthroline units,and exhibit impressively high specific capacity and cycling *** a high current density of 1.0 A·g^(−1),a high discharge specific capacity of 631.6 mAh·g^(−1)was obtained after 1000 *** co-participation of two organic ligands in the coordination is in accordance with the theory of soft and hard acids and bases,which contributes to the ability of the material to maintain a high capacity in cycling as well as its cyclic stability.

关键词： lithium-ion batteries metal organic frame electrochemical energy storage dual ligand hard-soft-acid-base

Porous 3D carbon-based materials:An emerging platform for efficient hydrogen production

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Nano Research 2023年第1期16卷 127-145页

作者： Fangyi Li Jizhou Jiang jiamei wang Jing Zou Wei Sun Haitao wang Kun Xiang Pingxiu Wu Jyh-Ping Hsu School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationWuhan Institute of TechnologyWuhan 430205China Semiconductor Electronic Special Gas of Hubei Engineering Research Center Jingzhou 434000China Department of Chemical Engineering “National Taiwan University”Taipei 10617

Due to their unique properties and uninterrupted breakthrough in a myriad of clean energy-related applications,carbon-based materials have received great ***,the low selectivity and poor conductivity are two primary difficulties of traditional carbon-based materials(zero-dimensional(0D)/one-dimensional(1D)/two-dimensional(2D)),enerating inefficient hydrogen production and impeding the future commercialization of carbon-based *** improve hydrogen production,attempts are made to enlarge the surface area of porous three-dimensional(3D)carbon-based materials,achieve uniform interconnected porous channels,and enhance their stability,especially under extreme *** this review,the structural advantages and performance improvements of porous carbon nanotubes(CNTs),g-C_(3)N_(4),covalent organic frameworks(COFs),metal-organic frameworks(MOFs),MXenes,and biomass-derived carbon-based materials are firstly summarized,followed by discussing the mechanisms involved and assessing the performance of the main hydrogen production *** include,for example,photo/electrocatalytic hydrogen production,release from methanolysis of sodium borohydride,methane decomposition,and *** role that the active sites of porous carbon-based materials play in promoting charge transport,and enhancing electrical conductivity and stability,in a hydrogen production process is *** current challenges and future directions are also discussed to provide guidelines for the development of next-generation high-efficiency hydrogen 3D porous carbon-based materials prospected.

关键词： porous three-dimensional(3D)carbon-based materials hydrogen production advanced synthesis

Periconceptional Folic Acid Only Versus Multiple Micronutrients Containing Folic Acid and Association with Gestational Diabetes Mellitus-Beijing Municipality,China,2017-2021

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China CDC weekly 2023年第23期5卷 505-510页

作者： Shuangbo Xia Yushan Du Ziyang Ren Jinjuan Zhang Suhong Gao jiamei wang Zhiwen Li Xiaohong Liu Jufen Liu Department of Epidemiology and Biostatistics School of Public HealthPeking UniversityBeijingChina Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health Peking UniversityBeijingChina Department of Child Health Beijing Haidian Maternal and Child Health HospitalBeijingChina Department of Gynaecology and Obstetrics Beijing Haidian Maternal and Child Health HospitalBeijingChina

Summary What is already known about this topic?Inconsistent results have been reported on the association between periconceptional folic acid only(FAO)or multiple micronutrients containing folic acid(MMFA)supplementation and the risk of gestational diabetes mellitus(GDM)in previous *** is added by this report?In a prospective cohort study conducted among pregnant women in Haidian District,Beijing Municipality,it was observed that those who took MMFA demonstrated a higher likelihood of developing GDM in comparison to those who consumed FAO ***,the increased risk for GDM in pregnant women supplemented with MMFA compared to FAO was primarily due to changes in fasting plasma *** are the implications for public health practice?It is highly recommended that women prioritize the use of FAO in order to yield potential benefits in the prevention of GDM.

关键词： prevention Diabetes conception

Rate of Correct Use of Folic Acid Supplementation Among Pregnant Women—Beijing Municipality,China,2017–2019

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China CDC weekly 2021年第37期3卷 783-787页

作者： Qinfeng Song Jing Wei jiamei wang Le Zhang Xiaohong Liu Yali Zhang Nan Li Zhiwen Li Institute of Reproductive and Child Health Peking University/Key Laboratory of Reproductive HealthNational Health Commission of the People’s Republic of ChinaBeijingChina Department of Epidemiology and Biostatistics School of Public HealthPeking UniversityBeijingChina Cancer Center of Shanxi Bethune Hospital Shanxi Academy of Medical ScienceTaiyuanShanxiChina Haidian Maternal and Child Health Hospital BeijingChina.

Summary What is already known on this topic?Neural tube defects can be effectively prevented by folic acid ***,compliance with the recommendations for supplementation is still low in *** is added by this report?This study investigated the rate of correct use of folic acid supplementation and its risk factors among pregnant women in Beijing.

关键词： China. Pregnant defects

Genetic variation of Porphyra yezoensis by using AFLP1

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Acta Oceanologica Sinica 2003年第3期22卷 453-457页

作者： Rui Yang, Biqian Liu, Qijun Luo, Yajun wang, jiamei Bao Marine Biotechnology Institution, Ningbo University,Ningbo 315211,China.E-mail:yangrui @ *** Marine Biotechnology Institution Ningbo University Ningbo 315211 China

Genetic variation of 11 lines of Porphyra yezoensis from the coastline of Kagoshima of Japan, Qingdao, Nantong, Putuo and Nanji Islands of China were studied by using amplified fragment length polymorphism (AFLP). 778 bands were obtained with AFLP analysis of 16 primer combinations, among which 15 were unique, about 98.07% were polymorphic. The AFLP data showed that the closest genetic distance was 0 - 180 between two Kagoshima samples, and the farthest one was 0.397 between Kagoshima No. 1 and Nantong No - 9 line. The genetic distance showed that the variation was within the inner species scope. Neighbor-joining cluster and UPGMA cluster indicated that samples from Kagoshima and Qingdao were with high similarity and either with the samples of Nantong, Putuo and Nanji Islands. P. yezoensis in China shared high genetic diversity, and the genetic distance showed positive correlation with the geographic distance.

关键词： Porphyra yezoensis AFLP genetic variation

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HFC网中的离散小波多音调制技术研究

电子科技大学学报 2000年第6期29卷 600-603页

作者：王嘉梅云南民族学院信息与电气工程系昆明650031

针对HFC网上行信道窄带噪声的环境,研究了HFC网中的离散小波多音调制技术,并对离散小波多音调制技术和离散多音调制技术进行了比较。计算机仿真结果表明,离散小波多音调制子信道幅频响应特性远优于离散多音调制。离散小波多音调制通过... 详细信息

针对HFC网上行信道窄带噪声的环境,研究了HFC网中的离散小波多音调制技术,并对离散小波多音调制技术和离散多音调制技术进行了比较。计算机仿真结果表明,离散小波多音调制子信道幅频响应特性远优于离散多音调制。离散小波多音调制通过精心设计子信道使其具有极佳的幅频响应特性曲线,具有比离散多音调制更强的抑制信道间干扰的能力。

关键词： HFC网上行信道通信网离散小波多音调制