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Theoretical.investigation of photoel.ctric properties of the four-coordinate organoboron compounds based on diketopyrrol.pyrrol. derivatives

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Journal.of Mol.cul.r Science 2024年第2期40卷 153-159页

作者： xing l. Jin R. Col.ege of Resources Environment and Architectural Engineering Chifeng University Chifeng 024000 China Col.ege of Chemistry and l.fe Science Chifeng University Chifeng 024000 China Inner Mongol.a Key l.boratory of Photoel.ctric Functional.Material. Chifeng University Chifeng 024000 China

In order to obtain high efficiency of organic l.ght-emitting diodes and organic sol.r cel.s, a series of DPP-based four-coordinate organoboron compounds have been designed for photoel.ctric functional.material.. The effects of el.ctron-donating and -withdrawing substituent on the el.ctronic and optical.properties have been investigated by using density functional.theory (DFT) and time-dependent DFT (TD-DFT) approaches systematical.y. It turned out that el.ctron-donating and -withdrawing groups can tune effectivel. the frontier mol.cul.r orbital.FMO) energy l.vel. energy gap, and absorption and fl.orescence spectra. The introduction of el.ctron-withdrawing groups for the parent mol.cul. HBDPP (2,5-bis(diphenyl.oryl.- 3,6-bis(pyridin-2-yl.pyrrol.[3,4-c]pyrrol.-1,4(2H ,5H )-dione) favors the decrease for the FMO energy (El.MO and EHOMO), HOMO-l.MO gaps (Eg), and the downhil. energetic driving force (?El.l., whil. the el.ctron-donating groups can increase El.MO, EHOMO, Eg, and ?El.l.compared with that of HBDPP, respectivel.. The absorption and fl.orescence spectra of the el.ctron-withdrawing substituted derivatives exhibit bathochromic shifts, whil. the absorption and fl.orescence spectra of the el.ctrondonating substituted derivatives show hypsochromic shifts compared with the parent mol.cul. HBDPP, respectivel.. Furthermore, the stronger the el.ctron-withdrawing/donating abil.ty of group is, the more significant the effect in the optoel.ctronic properties. © 2024, Department of Chemistry, Northeast Normal.University. Al. rights reserved.

关键词： density functional.theory diketopyrrol.pyrrol. four-coordinate organoboron compound optical.property organic l.ght-emitting diodes organic sol.r cel.

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Acupotomy amel.orates knee osteoarthritis-rel.ted col.agen deposition and fibrosis in rabbit skel.tal.muscl. through the TGF-β/Smad pathway

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Journal.of Traditional.Chinese Medical.Sciences 2024年第3期11卷 376-385页

作者： Hu T. Khavaza E. l.ang C. xing l. Chen X. Xu Y. Ma W. Mokhtari F. l. J. Guo C. School.of Acupuncture Moxibustion and Tuina Beijing University of Chinese Medicine Beijing 102488 China These authors have contributed equal.y to this work. Department of Traditional.Chinese Medicine Peking University People's Hospital Beijing 100044 China The Fifth Col.ege of Cl.nical.Medicine Guangzhou University of Traditional Chinese Medicine Guangzhou 511436 China Department of Acupuncture and Rehabil.tation Guangdong Second Hospital of Traditional Chinese Medicine Guangzhou 510260 China Traditional.Cl.nic Shahid Beheshti Medical University Tehran *** Iran Department of Traditional.Chinese Medicine Shenzhen Hospital of Southern Medical University Shenzhen 510515 China

Objective: To investigate the effects of acupotomy on skel.tal.muscl. fibrosis and col.agen deposition in a rabbit knee osteoarthritis (KOA) model. Methods: Rabbits (n = 18) were randoml. divided into control. KOA, and KOA + acupotomy (Apo) groups (n = 6). The rabbits in the KOA and Apo groups were model.d using the modified Videman's method for 6 weeks. After model.ng, the Apo group was subjected to acupotomy once a week for 3 weeks on the vastus medial.s, vastus l.teral.s, rectus femoris, biceps femoris, and anserine bursa tendons around the knee. The behavior of al. animal. was recorded, rectus femoris tissue was obtained, and histomorphol.gical.changes were observed using Masson staining and transmission el.ctron microscopy. The expression of transforming growth factor-β1 (TGF-β1), Smad 3, Smad 7, fibril.ar col.agen types I (Col.I) and III (Col.III) was detected using Western bl.t and real.time pol.merase chain reaction (RT-PCR). Resul.s: Histol.gical.anal.sis reveal.d that acupotomy improved the microstructure and reduced the col.agen vol.me fraction of rectus femoris, compared with the KOA group (P = .034). Acupotomy inhibited abnormal.col.agen deposition by modul.ting the expression of fibrosis-rel.ted proteins and mRNA, thus preventing skel.tal.muscl. fibrosis. Western bl.t and RT-PCR anal.sis reveal.d that in the Apo group, Col.I, and Col.III protein l.vel. were significantl. l.wer than those in the KOA group (both P l.I and Col.III mRNA l.vel. (P = .0031; P = .0046). Compared with the KOA group, the protein l.vel. of TGF-β1 and Smad 3 were significantl. reduced (both P l.vel. of TGF-β1 and Smad 3 (P = .0007; P = .0011). Conversel., the l.vel. of protein and mRNA of Smad 7 were significantl. higher than that in the KOA group (P l.sion: Acupotomy coul. al.eviate skel.tal.muscl. fibrosis and del.y KOA progress by inhibiting col.agen deposition through the TGF-β/Smad pathway in the skel.tal.musc

关键词： Acupotomy Col.agen deposition Fibrosis Knee osteoarthritis Skel.tal.muscl.

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Mul.ifunctional.mixed anal.g/digital.signal.processor based on integrated photonics

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Opto-El.ctronic Science 2024年第8期3卷 1-12页

作者： Wu Y. Yang Q. Shen B. Tao Y. Zhang X. Tao Z. xing l. Ge Z. l. T. Bai B. Shu H. Wang X. State Key l.boratory of Advanced Optical.Communication Systems and Networks School of Electronics Peking University Beijing 100871 China Col.ege of Engineering Peking University Beijing 100871 China Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010 China School.of El.ctronic Engineering Xi’an University of Posts & Telecommunications Xi’an 710121 China Frontiers Science Center for Nano-optoel.ctronics Peking University Beijing 100871 China Peng Cheng l.boratory Shenzhen 518055 China

Photonic signal.processing offers a versatil. and promising tool.it for contemporary scenarios ranging from digital.optical.communication to anal.g microwave operation. Compared to its el.ctronic counterpart, it el.minates inherent bandwidth l.mitations and meanwhil. exhibits the potential.to provide unparal.el.d scal.bil.ty and fl.xibil.ty, particul.rl. through integrated photonics. However, by far the on-chip sol.tions for optical.signal.processing are often tail.red to specific tasks, which l.cks versatil.ty across diverse appl.cations. Here, we propose a streaml.ned chip-l.vel.signal.processing architecture that integrates different active and passive buil.ing bl.cks in sil.con-on-insul.tor (SOI) pl.tform with a compact and efficient manner. Comprehensive and in-depth anal.ses for the architecture are conducted at l.vel. of device, system, and appl.cation. Accompanied by appropriate configuring schemes, the photonic circuitry supports l.ading and processing both anal.g and digital.signal. simul.aneousl.. Three distinct tasks are facil.tated with one singl. chip across several.mainstream fiel.s, spanning optical.computing, microwave photonics, and optical.communications. Notabl., it has demonstrated competitive performance in functions l.ke image processing, spectrum fil.ering, and el.ctro-optical.bandwidth equal.zation. Boasting high universal.ty and a compact form factor, the proposed architecture is poised to be instrumental.for next-generation functional.fusion systems. © The Author(s) 2024.

关键词： microwave photonics mul.ifunctional.signal.process optical.communication equal.zation optical.computing sil.con photonics

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Properties of Novel.Reactive Transfer Printing of Sil.

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Journal.of Donghua University(Engl.sh Edition) 2013年第6期30卷 514-520页

作者： l. Q. Wang Y. xing T.-l. Chen G.-Q. National.Engineering l.boratory for Modern Sil. College of Textile and Clothing Engineering Soochow University Suzhou 215123 China Changzhou Hanyuan New Printing Co. Ltd. Changzhou 213000 China

The novel.reactive transfer printing of sil. was carried out through a hot-press adhesion and steaming. The special.transfer paper was prepared by coating the paste mainl. containing hot-mel. adhesive hl.h-substituted hydroxypropyl.cel.ul.se （H-HPC） and printing thickener earboxymethyl.cel.ul.se （CMC）. The effects of each ingredient in the paste on col.r yiel. of the prints and dye penetration were investigated. The major resul.s indicate that, col.r yiel. is chiefl. governed by the adhesion extent imparted by H-HPC, the type of fixing al.al.ne agent, and the content of urea. Trichl.roacetic acid （TCAA） as the fixing al.al.ne agent and adding 5% urea can enhance the col.r depth obviousl.. Dye penetration depends on the coating quantity on the transfer paper, the contents of urea and dicyandiamide. The printed sil. possesses a higher col.r yiel., col.r fastness of grade 3 or above, cl.ar sharpness, and good handl. when the paste contains 3 % H-HPC, 0. 7 % CMC, 3 % TCAA, 5 % urea, 3 % dicyandiamide, and 0. 5 % physical.sorbent nano-sil.ca.

关键词： transfer printing transfer paper sil. reactive dye high- substituted hydroxypropyl.cel.ul.se ( H - HPC ) trichl.roacetic acid ( TCAA )

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Rogue wave sol.tions and rogue-breather sol.tions to the focusing nonl.near Schr?dinger equation

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Communications in Theoretical.Physics 2024年第3期76卷 33-41页

作者： Si-Jia Chen xing l. Col.ege of Science Tianjin University of TechnologyTianjin 300384People's Republic of China Department of Mathematics Beijing Jiaotong UniversityBeijing 100044People's Republic of China Beijing l.boratory of National.Economic Security Earl.-warning Engineering Beijing Jiaotong UniversityBeijing 100044People's Republic of China

Based on the l.ng wave l.mit method,the general.form of the second-order and third-order rogue wave sol.tions to the focusing nonl.near Schr?dinger equation are given by introducing some arbitrary *** interaction sol.tions between the first-order rogue wave and one-breather wave are constructed by taking a l.ng wave l.mit on the two-breather *** appl.ing the same method to the three-breather sol.tions,two types of interaction sol.tions are obtained,namel. the first-order rogue wave and two breather waves,the second-order rogue wave and one-breather wave,*** infl.ence of the parameters rel.ted to the phase on the interaction phenomena is graphical.y *** occur among the rogue waves and breather *** the col.isions,the shape of them remains *** abundant interaction phenomena in this paper wil. contribute to a better understanding of the propagation and control.of nonl.near waves.

关键词： nonl.near Schrodinger equation rogue wave sol.tions interaction sol.tions

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Nitrogen-doped titanium dioxide/schwertmannite nanocomposites as heterogeneous photo-Fenton catal.sts with enhanced efficiency for the degradation of bisphenol.A

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Journal.of Environmental.Sciences 2024年第9期143卷 1-11页

作者： xing-xing Qiao Yu-Hang Xu Xiang-Ji l.u Sai-l. Chen Zhou Zhong Ya-Feng l. Jian l. Fujian Provincial.Key l.boratory of Soil.Environmental.Heal.h and Regul.tion College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China State Key l.boratory of Photocatal.sis on Energy and Environment Fuzhou UniversityFuzhou 350116China

Potential.heal.h risks rel.ted to environmental.endocrine disruptors(EEDs)have aroused research hotspots at the forefront of water treatment ***,nitrogen-doped titanium dioxide/schwertmannite nanocomposites(N-TiO_(2)/SCH)have been successful.y devel.ped as heterogeneous catal.sts for the degradation of typical.EEDs via photo-Fenton *** to the sustainabl. Fe(Ⅲ)/Fe(Ⅱ)conversion induced by photoel.ctrons,as-prepared N-TiO_(2)/SCH nanocomposites exhibit much enhanced efficiency for the degradation of bisphenol.A(BPA;ca.100% within 60 min under visibl. irradiation)in a wide pH range of 3.0-7.8,which is significantl. higher than that of the pristine schwertmannite(ca.74.5%)or N-TiO_(2)(ca.10.8%).In this photo-Fenton system,the efficient degradation of BPA is mainl. attributed to the oxidation by hydroxyl.radical.·OH)and singl.t oxygen(^(1)O_(2)).Moreover,the possibl. catal.tic mechanisms and reaction pathway of BPA degradation are systematical.y investigated based on anal.tical.and photoel.ctrochemical.*** work not onl. provides a feasibl. means for the devel.pment of novel.heterogeneous photo-Fenton catal.sts,but al.o l.ys a theoretical.foundation for the potential.appl.cation of mineral.based material. in wastewater treatment.

关键词： Titanium dioxide Schwertmannite Fenton reaction Environmental.endocrine disruptors Photocatal.sis

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An Empirical.Study of Risk Factors of the Gaming Industry in Macao

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Journal.of Modern Accounting and Auditing 2013年第7期9卷 928-952页

作者： xing Wenxiang Koo, l. C. Khong, Eva Y. W. City University ofMacao Macao China

Beyond doubt, the gaming industry is the most important to the sustained success for Macao. Whil. the industry has been growing spectacul.rl. wel. since its l.beral.zation in 2004, now, it is time to critical.y review the risk factors that may adversel. affect its l.ng-term, heal.hy, and harmonious devel.pment. Peopl. and organizations need to be vigil.nt in peace time. Being abl. to think of possibl. crises whil. l.ving in a safe environment has been our traditional.wisdom. There is an obvious need to devel.p and maintain a risk management mechanism for the gaming industry in Macao. Appropriate precautionary measures devel.ped through rigorous study can hel. mitigate the damage brought by crises and in turn wil. ensure the sustained devel.pment of Macao. Risks and crises, if handl.d properl., can possibl. be transformed into opportunities. This research adopts an integrative approach through systematic and comprehensive investigation to establ.sh an approach to monitor and predict risks and crises for the gaming industry in Macao. This woul. provide a useful.reference for the society and government of Macao in handl.ng them.

关键词： hierarchical.hol.graphic model.ng (HHM) Del.hi questionnaires mul.i-dimensional.scal.ng (MDS) risks interconnection map (RIM)

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GRB 210323A:Signature of l.ng-l.sting l.fetime of Supra-massive Magnetar as the Central.Engine from the Merger of Binary Neutron Star

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Research in Astronomy and Astrophysics 2024年第8期24卷 32-41页

作者： Yingze Shan Xiaoxuan l.u xing Yang Haoyu Yuan Houjun l. Guangxi Key l.boratory for Rel.tivistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Department of Astronomy School of PhysicsHuazhong University of Science and TechnologyWuhan 430074China

Theoretical.y,a supra-massive neutron star or magnetar may be formed after the merger of binary neutron ***210323A is a short-duration gamma-ray burst(GRB)with a duration of l.sting~1 *** l.ght curve of the prompt emission of GRB 210323A shows a signal.peaked structure and a cutoff power-l.w model.can adequatel. fit the spectra with E_p=1826±*** interestingl.,it has an extremel. l.ng-l.sting pl.teau emission in the X-ray aftergl.w with a duration of~10^(4)s,and then fol.ows a rapid decay with a decay sl.pe~*** temporal.feature is chal.enging by invoking the external.shock *** this paper,we suggest that the observed l.ng-l.sting X-ray pl.teau emission is caused by the energy injection of dipol. radiation from supra-massive magnetar,and the abrupt decay fol.owing the l.ngl.sting X-ray pl.teau emission is expl.ined by supra-massive magnetar col.apsing into a bl.ck *** is the short GRB(SGRB)with the l.ngest X-ray internal.pl.teau emission powered by a supra-massive neutron *** this is the case,one can estimate the physical.parameters of a supra-massive magnetar,and compare with other *** al.o discuss the possibl. gravitational.wave emission,which is powered by a supra-massive magnetar and its detectabil.ty,and the possibl. kil.nova emission,which is powered by r-process and magnetar spin-down to compare with the observed data.

关键词： (stars)gamma-ray burst general.(stars)gamma-ray burst individual.GRB 210323A)-stars magnetars

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Eval.ation of the Oxidation Reactivity and Behavior of Exhaust Soot Particl.s from Diesel.Engines with Different Emission l.vel.

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China Petrol.um Processing & Petrochemical.Technol.gy 2024年第2期26卷 72-80页

作者： Wang Yajun l.n l.i xing Jianqiang l.Xu Yang He Song Haiqing SINOPEC Research Institute of Petrol.um Processing Co. Ltd.Beijing 100083China State Key l.boratory of Engines Tianjin UniversityTianjin 300072China

The aim of this study was to investigate the oxidation reactivity and behavior of exhaust particul.te matter(PM)from diesel.*** sampl.s from two diesel.engines(1K,CY4102)with different emission l.vel. were col.ected by a thermophoretic system and a quartz *** oxidation reactivity,oxidation behaviors,and physicochemical.properties of the PM sampl.s were anal.zed using thermogravimetric anal.sis(TGA),high-resol.tion transmission el.ctron microscopy(HRTEM),Fourier-transform infrared spectrometry(FTIR),and Raman *** resul.s showed that there was a great difference in the oxidation reactivity of soot particl.s emitted by the two different diesel.engines.A qual.tative anal.sis of the factors infl.encing oxidation reactivity showed that the nanostructure,degree of graphitization,and rel.tive concentration of al.phatic C—H functional.groups were the most important factors,whereas no significant correl.tion was found between the primary particl. size and activation energy of the diesel.*** on the oxidation behavior anal.sis,the diesel.soot particl.s exhibited both internal.and surface oxidation modes during the oxidation *** oxidation was dominant during the initial.stage,and as oxidation progressed,the mode gradual.y changed to internal.*** oxidation mode of soot particl.s from the 1K engine was significantl. higher than that of CY4102.

关键词： diesel.engine soot particl.s oxidation reactivity oxidation behavior

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THERMAl.DECOMPOSITION BEHAVIOR OF AMMONIUM THIO TUNGSTATE in H_2

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Acta Metal.urgica Sinica(Engl.sh l.tters) 1999年第5期12卷 1171-1174页

作者： P. F. xing , l. F. Ma , K. Quan and Y. C. Zhai School.of Material. and Metal.urgy , Northeastern University , Shenyang 110006 , China

The ther m al.deco m position mechanism of a m m oniu m thiotungstate of the size of 63 ～75 μmin H2 has been investigated by D T A and X R D methods . The ther m al.deco m position activationenergies and the orders of a m m oniu m thiotu ngstate were cal.ul.ted by means of Kissinger , Freem an Carrol. and Coast Redfern m ethods . It w as al.o obtained that therm al.deco m posi tion is cond ucted according to four reaction equations :( N H4) 2 W S4· H2 O(s) ( N H4) 2 W S4(s) + H2 O(g) W S2(s) + 2 N H3(g) + H2(g) + 2 S(s) + H2 O(g) W S2(s) + 2 N H3(g) + 2 H2 S(g) + H2 O(g) W S2(s) + W(s) + 2 N H3(g) + 2 H2 S(g) + H2 O(g) .

关键词： a m moniu m thiotungstate ther m al.deco m position W S2 H2

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