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15%Efficiency All-Polymer Solar Cells Based on a Polymer Acceptor Containing B←N Unit

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Chinese Journal of Polymer Science 2022年第8期40卷 989-995,I0011页

作者： ying-Ze Zhang Ning wang ying-hui wang Jun-hui Miao Jun Liu Li-Xiang wang State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei230026China

The development of new polymer acceptors strongly paves the power conversion efficiency(PCE)improvement of all polymer solar cells(all-PSCs).Herein,we develop a new polymer acceptor PBN26,which is the alternating copolymer of 2,2′-((2Z,2′Z)-((12,13-bis(2-octyldodecyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2″,3″:4′,5′]thieno[2′,3′:4,5]pyrrolo[3,2-g]thieno[2′,3′:4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(3-oxo-2,3-dihydro-1 H-indene-2,1-diylidene))dimalononitrile and B←N bridged thienylthiazole(BNTT).The optimized all-PSCs device based on PBN26 exhibits a PCE of 15.09%,which is the highest value of the all-PSCs based on B←N-based polymer acceptors at ***,we also fabricate an all-PSC module with active area of 10 cm2 by blade coating,which exhibits a PCE of 8.78%.These results prove that polymer acceptors containing B←N units are promising for all-PSC device applications.

关键词： Organic photovoltaic All-polymer solar cells Polymer acceptors Boron-nitrogen coordination bond

Nonlinear Optical Properties of D-π-A-π-D Type Oligomers with Different Conjugation Length

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Chinese Journal of Chemical Physics 2015年第5期28卷 -页

作者： Tian-hao Huang ying-hui wang Tian-ning Xu Feng-ying Yu Han-zhuang Zhang Yu-ran wang Department of Science Zhijiang College of Zhejiang University of Technology Hangzhou 310024ChinaFemtosecond Laboratory College of Physics Jilin University Changchun 130012 China Femtosecond Laboratory College of Physics Jilin University Changchun 130012 China Department of Science Zhijiang College of Zhejiang University of Technology Hangzhou 310024China North China University of Science and Technology Tangshan 063000 China

The conjugation length-dependent nonlinear optical properties of fluorenone-based linear conjugated oligomers have been investigated by experimental and theoretical methods. In- frared spectra and the steady-state absorption spectra show that the increase of conjugated unit could enhance the stretching vibration peaks of C=C and lead to a red-shift of the absorption peaks. Meanwhile, the two-photon fluorescence (TPF) intensity is gradually en- hanced with the increase of excitation energy, and the TPF efficiency is obviously higher after the introduction of fluorene-ethylene units. The sum-over-states approach was used to model the two-photon absorption (TPA) cross-sections of oligomers, and the theoretical values agree well with the experimental data obtained from the femtosecond open-aperture z-scan technique. The results exhibit that the extension of conjugated system indeed plays a role in the improvement of TPA behavior of oligomers.

关键词： Linear conjugated oligomer Two-photo absorption Sum-over-states

Multi-mesh Adaptive Finite Element Algorithms for Constrained Optimal Control Problems Governed By Semi-Linear Parabolic Equations

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Acta Mathematicae Applicatae Sinica 2014年第2期30卷 411-428页

作者： Tie-jun CHEN Jian-xin XIAO hui-ying wang Medical College of Yiyang

In this paper, we derive a posteriori error estimators for the constrained optimal control problems governed by semi-linear parabolic equations under some assumptions. Then we use them to construct reliable and efficient multi-mesh adaptive finite element algorithms for the optimal control problems. Some numerical experiments are presented to illustrate the theoretical results.

关键词： semi-linear parabolic equations constrained optimal control problems adaptive finite element methods a posteriori error estimators

A highly selective and sensitive fluorescent chemosensor for Zn^(2+)

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Chinese Chemical Letters 2008年第10期19卷 1240-1243页

作者： Xiu ying Zhang Zuo hui wang Lin Yang School of Chemistry and Environmental Science Key Ltlboratory for Environmental Pallution Control Technology of Henan Province Henan Normal University Xinxiang 453007 China

A new selective Zn^2＋ fluorescent chemosensor, o-vanillin-4-ethoxybenzoylhydrazone （1）, was designed and prepared. Free 1 mainly displayed very weak fluorescence at 480 nm upon excitation at 403 nm. It displayed high selectivity for Zn^2＋ and had a 518- fold fluorescent enhancement upon binding of Zn^2＋, while the other cation ions had only little influence on the fluorescence of 1. Mechanism of enhancement of l＇s fluorescence by Zn^2＋ was briefly discussed.

关键词： Chemosensor Zinc ion Fluorescence enhancement N-Acylhydrazone

Linear and Nonlinear Optical Properties of Novel Multi-branched Oligomers

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Chinese Journal of Chemical Physics 2012年第6期25卷 636-641,I0003页

作者： Li-jing Gong ying-hui wang Zhi-hui Kang Tian-hao Huang Ran Lu Han-zhuang Zhang College of Physics Jilin University Changchun 130012 China College of Chemistry Jilin University Changchun 130012 China Aviation University of Air Force Changchun 130022 China

We investigate the fluorene-vinylene unit dependent photo-physical properties of multi- branched truxene based oligomers （Tr-OFVn, n=1-4） employing steady-state absorption and emission spectroscopy, transient absorption spectroscopy, two-photon fluorescence, and z-scan technique. The results show that the increasing of fluorene-vinylene unit leads to a red-shift in the spectra of absorption and fluorescence, and shortens the excited state lifetime. Meanwhile, two-photon fluorescence efficiency and two-photon absorption cross section of truxene based oligolners gradually enhance in company with the extension of π- conjugated length. In addition, the values of two-photon absorption cross section modeled on the sum-over-state approach agree well with the experimental ones. The results indicate multi-branched truxene based oligomers bearing organic materials for two-photon applications.

关键词： Multi-branch oligomer Two-photo absorption Z-scan

Local injection of bortulinum toxin A at multiple points for decreasing the muscular tension of children with spastic cerebral palsy A comparative observation

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Neural Regeneration Research 2007年第10期2卷 617-620页

作者： Feng zhen Du hui ying wang Rehabilitation Center Loufeng HospitalSuzhou Industrial ParkSuzhou 215021Jiangsu ProvinceChina Gansu Rehabilitation Center Hospital Lanzhou 73000Gansu ProvinceChina

More than 70% children with cerebral palsy belong to the spastic one, and the increased muscular tension results in motor dysfunction and posture abnormality. OBJECTIVE： To observe the assistant effect of the local injection of BTX-A at multiple points in the rehabilitative treatment of spastic cerebral palsy. DESIGN： A comparative observation on the clinical efficacy. SETTINGS： Rehabilitation Center, Loufeng Hospital, Suzhou Industrial Park; Gansu Rehabilitation Center Hospital. PARTICIPANTS： Sixty-nine children with cerebral palsy were selected from the outpatients and inpatients who accepted rehabilitative treatments in the Cerebral Palsy Treatment Center of Gansu Rehabilitation Center Hospital from April 2003 and October 2004. Inclusive criteria： ①Having high risk factors for brain injury before birth and within 1 month after birth, mainly manifested as central motor disorder and posture abnormality; ② Accompanied by increase of muscular tension in both lower limbs, appearing as tiptoes and scissors gaits while in standing position or walking; ③ Without fixed contracture of lower limb; ④ Had never been operated for lower limbs; ⑤ Had never been injected with BTX-A; ⑥ Clearly diagnosed to have spastic palsy. The enrolled children were not screened by disease conditions, course, age, etc., and informed consents were obtained from the parents of all the children. The children whose parents agreed to accept BTX-A treatment were taken as BTX-A treated group （n =45）, and the others as control group （n = 24）. METHODS： All the children accepted regular rehabilitative training after admission, 6 times a weeks, besides, those in the BTX-A treated group were given local injection of BTX-A at multiple points of target muscles, including bilateral adductor longus muscles, pectineal muscles, gastrocnemius muscles and soleus muscles. BTX-A was diluted with saline （5 U BTX-A in 0.1 mL）, 3 - 4 U/kg for each piece of muscle. The number of injected sites depended on the size of ta

关键词： spastic cerebral palsy bortulinum toxin A (BTX-A) adductor angle forced area on soles

Real Heat Flux Analysis of Continuously Casting Round Billet

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Journal of Iron and Steel Research International 2008年第1期15卷 25-29页

作者： ZHAN hui-ying wang Xu-dong GUO Liang-liang YAO Man School of Material Science and Engineering Dalian University of Technology Dalian 116024 Liaoning China

The distributions of heat flux along the height and the circumferential direction of round billet mould were measured *** influence of casting speed,carbon content,powder,and pouring temperature on the average longitudinal and circumferential heat flux in the ＂high heat flux region＂ was *** experimental and analytical results provide a basis for an intelligent mould with online detection of defects,adjustment of operational parameters,optimization of the monitoring system,and even prediction of abnormal heat transfer.

关键词： continuous casting mould heat flux round billet

Rare giant corneal keloid presenting 26 years after trauma:A case report

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World Journal of Clinical Cases 2022年第27期10卷 9776-9782页

作者： Shang Li Jiang Lei ying-hui wang Xiao-Lin Xu Ke Yang ying Jie Beijing Institute of Ophthalmology Beijing Tongren Eye CenterBeijing Tongren HospitalCapital Medical UniversityBeijing Ophthalmology and Visual Sciences Key LabBeijing 100005China Department of Ophthalmology The First People's Hospital of Lanzhou CityLanzhou 730050Henan ProvinceChina

BACKGROUND Corneal keloid is a rare clinical disease with an unknown etiology,which is easily *** is the most effective treatment but is rarely reported in the ***,we report the clinical features,histopathology,and surgical outcome of a giant corneal keloid with trophoblastic vessels and discuss the genesis of the *** SUMMARY A 36-year-old young man was admitted to the hospital because of a large mass on the surface of the left *** patient had suffered an injury to his left eye at the age of 6-years-old;however,as the injury did not cause cornea perforation,he did not undergo *** lamp exam showed a large,elevated,opaque lesion that covered the entire cornea and protruded from the surface of the *** segment optical coherence tomography(AS-OCT) revealed a lesion of irregular density involving the anterior *** suspected a secondary corneal fibroproliferative mass based on the clinical history,and slit lamp and AS-OCT *** patient subsequently underwent a superficial keratectomy and keratoplasty,and the final diagnosis of corneal keloid was confirmed by intraoperative histopathological *** Non-penetrating corneal trauma damages corneal epithelium basement membrane,initiating stromal fibrosis and causing corneal ***-OCT and biopsy confirm diagnosis.

关键词： Corneal keloid Histopathology Immunohistochemical staining Anterior segment ocular coherence tomography Deep anterior lamellar keratoplasty Case report

Optimal investment based on relative performance and weighted utility

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Applied Mathematics(A Journal of Chinese Universities) 2024年第2期39卷 328-342页

作者： wang Lei DONG ying-hui HUA Chun-rong Department of Mathematics Suzhou University of Science and TechnologySuzhou 215009China Changshu Institute of Technology Changshu 215500China

This paper studies the optimal portfolio allocation of a fund manager when he bases decisions on both the absolute level of terminal relative performance and the change value of terminal relative performance comparison to a predefined reference point. We find the optimal investment strategy by maximizing a weighted average utility of a concave utility and an Sshaped utility via a concavification technique and the martingale method. Numerical results are carried out to show the impact of the extent to which the manager pays attention to the change of relative performance related to the reference point on the optimal terminal relative performance.

关键词： relative performance weighted utility S-shaped utility concavification