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Passive ranging and a three-dimensional imaging system through wavefront coding

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Chinese Physics B 2018年第5期27卷 234-240页

作者： Xing-Xu Zhang Lei Qiao ting-yu zhao Rong-Sheng Qiu College of Physics Zhejiang Sci-Tech UniversityHangzhou 310016China Shanghai Aerospace Control Technology Institute Shanghai 201109China

A single-image passive ranging and three-dimensional(3 D)imaging system with chiral phase encoding was proposed in 2011[***.36,115(2011)].A new theoretical analysis of the system in space domain is presented in this *** deduce the analytic relationships between the object distance and the point spread function,and between the object distance and the encoded image,*** the point spread function and the processed spectrum of the encoded image have two spots,which will rotate with the variation of the object *** the depth map is extracted from the encoded image and it can be used to set up 3 D *** theoretical analysis is verified by a wavefront coding system with a chiral phase which is generated by a phase-only liquid-crystal spatial light *** phase generated by the liquid-crystal spatial light modulator is more flexible than the fixed phase mask and can be adjusted in real *** is especially suitable for observing the object with a large depth of field.

关键词： imaging systems image processing wavefront encoding

Synthesis of Monodisperse α-Fe_2O_3 Particles in Short Periods

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Chinese Chemical Letters 2003年第3期14卷 323-326页

作者： yu ting zhao De Hong CHEN Dai Rong CHEN Xiu Ling JIAO Department of Chemistry Shandong UniversityJinan 250100

Monodisperse a-Fe2O3 particles with different particle size (ca. 62010 nm or 604 nm) have been successfully prepared by hydrothermal method in short periods. In this process, the crystal-growing inhibitor (DBS) favor... 详细信息

关键词： Hematite hydrothermal method monodisperse particles.

Synthesis of NiFe_2O_4 Powders Well Defined in Size and Morphologies

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Chinese Chemical Letters 2002年第4期13卷 389-392页

作者： yu ting zhao De Hong CHEN Dai Rong CHEN Xiu Ling JIAO Department of Chemistry Shandong UniversityJinan 250100

The uniform NiFe2O4 powders with different particle size and morphologies (octahedral, cubic and spherical) have been prepared from different precursors via hydrothermal process. The nanocrystallines derived from pre... 详细信息

关键词： Nickel ferrite hydrothermal method superparamagnetism.

MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self‑Powered Motion Sensing

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Nano-Micro Letters 2025年第3期17卷 265-279页

作者： yu‑Ze Wang yu‑Chang Wang ting‑ting Liu Quan‑Liang zhao Chen‑Sha Li Mao‑Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Materials Science and Engineering Peking UniversityBeijing 100871People’s Republic of China School of Mechanical and Material Engineering North China University of TechnologyBeijing 100144People’s Republic of China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080People’s Republic of China

Polymeric microwave actuators combining tissue-like softness with programmablemicrowave-responsive deformation hold great promise for mobile intelligentdevices and bionic soft robots. However, their application is challenged by restricted electromagneticsensitivity and intricate sensing coupling. In this study, a sensitized polymericmicrowave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3C2Tx(MXene). Compared to the initial counterpart, the hybrid polymer exhibits unique spacechargepolarization and interfacial polarization, resulting in significant improvements of230% in the dielectric loss factor and 830% in the apparent efficiency of electromagneticenergy harvest. The sensitized microwave actuation demonstrates as the shortenedresponse time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (upto 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combinesdriving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of ~ 3 mV) duringactuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approachfor developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

Research progress in the use of bifidobacteria for the treatment of colorectal cancer

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Gastroenterology & Hepatology Research 2022年第3期4卷 30-33页

作者： yu-ting zhao Zhi-Hui Cai yu-Chen Yang Graduate School Inner Mongolia Medical UniversityHohhot 010017China Department of Medical Oncology Inner Mongolia People’s HospitalHohhot 010017China

Colorectal cancer has high morbidity and mortality rates;therefore,developing new therapeutic drugs and methods for it is *** is increasing evidence that intestinal flora plays a vital role in maintaining intestinal homeostasis and therefore,in the development of colorectal *** such,therapeutic approaches using probiotics such as Bifidobacterium lactis to regulate intestinal flora are expected to represent a new treatment strategy for colorectal *** article introduces and compares the development status of conventional therapies for colorectal cancer,primarily targeted therapy and immunotherapy,the relationship between intestinal flora and colorectal cancer,and the research and application of Bifidobacterium bifidum in colorectal cancer treatment to provide a reference for its clinical application.

关键词： colorectal cancer treatment intestinal flora bifidobacteria

Preparation and Thermal Decomposition of [Cr (salen) (H_2O)_2] Cl

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Chinese Chemical Letters 1999年第5期10卷 429-432页

作者： Bac Xue ZHOU Shu Qin JIANG Ding ZHOU yu ting zhao (Department of Natural Science, Harbin Institute of Technology, Weihai Campus, Weihai.Shandong 264209)(Department of Chemistry, Shandong University. Jinan 250100) Department of Natural Science Harbin Institute of Technology Weihai Campus Weihai Shandong 264209 China Department of Chemistry Shandong University Jinan 250100 China

A complex of N.N'-ethylencbis (saliylidenemininato) diaquochromium(III) chloride.[Cr (salen) (H2O)2] Cl was prepared. and its decomposition mechanism was studied by TG and DTA. The IR spectrum of the product of thermal decomposition was examined at the first *** results were obtained from the analysis of TG-DTG curves with three different methods The most probable kinetic functions were suggested by comparison of kinetic parameters,

关键词： Chromium(III) complex thermal decomposition. non-isothermal kinetics

A NEW APPROACH TO ESTIMATE KINETIC DECOMPOSITION FROM TG-DTG OR DSC CURVE

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Chinese Chemical Letters 1993年第6期4卷 521-522页

作者： yu ting zhao Jian Hua ZHANG Tong Shan SUN Department of Chemistry,Shandong University,Jinan,250100zhao He YANG Institute of Crystal Materials,Shandong University,Jinan,250100

This paper reports a new approach to estimate kinetic parameters for the thermal decomposition of the solid state from TG-DTG or DSC *** equations are derived for the first *** validity of these equations was demonstr... 详细信息

关键词： DTG AI RT rate DSC A NEW APPROACH TO ESTIMATE KINETIC DECOMPOSITION FROM TG-DTG OR DSC CURVE

Administration of imatinib in the first 90 days after allogeneic hematopoietic cell transplantation in patients with Philadelphia chromosome-positive acute lymphoblastic leukemia

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Chinese Medical Journal 2011年第2期124卷 246-252页

作者： CHEN Huan LIU Kai-yan XU Lan-ping LIU Dai-hong CHEN yu-hong SHI Hong-xia HAN Wei ZHAN Xiao-hui WANG yu zhao ting HUANG Xiao-jun Peking University Institute of Hematology Peking University People's Hospital Beijing 100044 China

Background Relapse happens frequently after allogeneic hematopoietic cell transplantation （alIo-HCT） in the patients with Philadelphia chromosome-positive acute lymphoblastic leukemia （Ph^＋ ALL）. Detection of the minimal residual disease （MRD） before and after alIo-HCT is associated with higher relapse rate. Early administration of imatinib after alIo-HCT may prevent recurrent Ph^＋ ALL. The aim of this study was to evaluate the safety and efficacy of imatinib in preventing hematological relapse when imatinib was administrated in the first 90 days after alIo-HCT. Methods Patients with Ph^＋ ALL that underwent alIo-HCT were enrolled in a prospective study. A TaqMan-based real-time quantitative polymerase chain reaction （RQ-PCR） technique was used to detect the MRD （bcr-abl transcript levels）. Imatinib therapy was initiated prior to 90 days after alIo-HCT if the patient＇s absolute neutrophil count （ANC） was above 1.0×10^9/L （without granulocyte colony-stimulating factor （G-CSF） administration） and the platelet count was greater than 50.0×10^9/L, or if the bcr-abl transcript levels were elevated in two consecutive tests, or if the bcr-abl transcript levels were 〉10.2 after the initial engraftment. The initial daily dose of imatinib was 400 mg/d for adults and 260 mg/m^2 for children （younger than 17 years）. Imatinib was administered for at least I month and the bcr-abl TaqMan results were negative for 3 consecutive tests, or complete molecular remission （CR^mol） was sustained for at least 3 months. Results From May 2005 to October 2008, 29 patients were enrolled in this study, of whom, 19 patients were male and 10 were female. The median age of the enrolled patients was 33 years （range 6-50 years）. Imatinib therapy was started at a median time of 60 days （range 20-122 days） post HCT （only one patient started Imatinib therapy at 122nd day after HCT）. Twenty-five adult patients could tolerate a dose of 300-400 mg/d of imatinib, and three children tolerated a dose of 260 mg

关键词： Philadelphia chromosome acute lymphoblastic leukemia allogeneic hematopoietic cell transplantation minimal residual disease

Precise gradient separation of nanoparticles using reduced graphene oxide-polyoxomolybdate membranes

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Science China Chemistry 2025年第1期68卷 209-216页

作者： Yixin Yang Wanlei zhao Ruoxuan Zheng Hongqiang Li Wei Chen yu-Fei Song State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Quzhou Institute for Innovation in Resource Chemical Engineering

The purification and size sieving of nanoparticles （NPs） represents a significant scientific ***,the r GO-polyoxometalates (POMs=PMo12,Mo132and Mo368) membranes were fabricated successfully via a simple and scalable POMsassisted in-situ photoreduction *** the mass ratio of r GO to PMo12was 1:30,the resultant r GO-PMo12membranes with highly ordered and uniform nanochannels of 1.0 nm can be obtained,which showed an accurate carbon quantum dots（CQDs） separation with a cut-off size approximately 1.0 *** increase of the size of the interlayered POMs from PMo12（1.0 nm）,{Mo132}（2.9 nm） to{Mo368}（3.8 nm）,the resultant r GO-PMo12,r GO-Mo132and r GO-Mo368exhibited precise gradient separation of CQDs and Au nanoparticles by size exclusion *** results pave a promising way to construct new twodimensional （2D） membranes for highly efficient size-selective separation.

关键词： reduced graphene oxide polyoxometalates membranes gradient separation nanoparticles