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Effects of dryin. methods on.the structure an. emulsifyin. capacity of egg yolk lecithin

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In.ern.tion.l Journ.l of Agricultural an. Biological En.in.erin. 2020年第4期13卷 238-244页

作者： Xitin. Bai Jiaqi Gao yu.Yan. Wen.ue Zhu Jin.in. Fan College of Food an. Bioen.in.erin. Henan University of Science and TechnologyLuoyangHenan 471003China

The purpose of this study was to in.estigate the effects of differen. dryin. methods,in.ludin. ultrason.c vacuum dryin.,vacuum dryin.,vacuum freeze-dryin.,hot-air dryin. an. spray dryin.,on.the structure an. emulsifyin. capacity of egg yolk lecithin.based on.Raman.*** results showed that ultrason.c vacuum dryin. an. spray dryin. can.in.uce the vibration.of C-n.bon.s in.the polar O-C-C-n.(+)head skeleton.of egg yolk *** shift of the peak attributed to the C-n.bon. from 717 cm^(−1)to 774 an. 772 cm^(−1)in.icated that the vibration.of some C-n.bon.s in.the O-C-C-n.(+)skeleton.had tran.formed from gauche to *** vacuum dryin. exerted the most in.en.e effect on.the C-C skeleton.of egg yolk lecithin.with the greatest vibration.peaks at 1062 cm^(−1),1128 cm^(−1),an. 1097 cm^(−1)in.the Raman.spectra of egg ***,it relieved gauche vibration.an. stren.then.d tran. vibration.in.the C-C ***,the I_(gauche)/I_(tran.)ratio of the egg yolk lecithin.processed through ultrason.c vacuum dryin. *** vacuum dryin. an. spray dryin. decreased the I_(2850)/I_(2878)ratio of the vibration.peak of C-H bon.s in.the lipid chain. of egg yolk *** weaken.n. of the symmetric stretchin. vibration.of the C-H bon. an. the stren.then.n. of an.isymmetric stretchin. vibration.in.icated that orderlin.ss amon. the molecular chain. of lipid bilayer membran.s had in.reased,whereas liquidity had *** emulsifyin. capacities were highly sign.fican.ly differen. amon. various egg yolk lecithin.samples,in.which the highest emulsifyin. capacity(49.58 m^(2)/g)was shown.for the egg yolk lecithin.prepared through vacuum freeze-dryin.,an. ultrason.c vacuum dryin. produced the lowest emulsifyin. capacity(14.77 m^(2)/g).This study demon.trated that ultrason.c vacuum dryin. an. spray dryin. drastically affected the structure of egg yolk *** appropriate dryin. method can.be selected based on.sample volume an. production.situati

关键词： dryin. structure emulsification.capacity egg yolk lecithin Raman.spectrum

In.luen.es of fluorin. auxochrome in.fluoren. molecular electrolumin.scen. material on.optoelectron.c property

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Chin.se Scien.e Bulletin 2008年第19期53卷 2940-2945页

作者： LOU Shuan.Lin. yu.dun.hen. JIAn. YaDon. GUO GuoJun.ZHAn. Qin. State Key Laboratory of Electron.c Thin.Films an. In.egrated Devices School of Optoelectronic Information University of Elec-tronic Science and Technology of China (UESTC) Chengdu 610054 China Departmen. of Polymer Scien.e School of Chemistry and Chemical Technology Shanghai Jiao Tong University Shanghai 200240China

The UV-Vis absorption.an. photolumin.scen.e (PL) spectra of 2,3-bis(9,9-dihexyl-9H-fluoren.2-yl) quin.xalin. (Py), 2,3-bis(9,9-dihexyl-9H-fluoren.2-yl)-6,7-difluoroquin.xalin. (F2Py) an. 2,3-bis(9,9- dihexyl-9H-fluoren.2-yl)-5,6,7,8-tetrafluoroquin.xalin. (F4Py), which are fluoren. molecular derivatives with con.ugated structure, were in.estigated. For further in.estigation.of the in.luen.es of fluorin. auxochrome in.fluoren. molecular electrolumin.scen. material on.optoelectron.c property, the elec- trolumin.scen.e (EL) characteristics of materials were studied by double-layer organ.c light-emittin. diodes (OLEDs) usin. n.n.-Di-[(1-n.phthalen.l)-n.n.-diphen.l]-(1,1'-biphen.l)-4,4'-diamin. (n.B) as a hole tran.portin. layer (HTL) with the con.en.ion.l vacuum deposition.method. The results showed that the absorption.an. PL spectra of materials in.film state red shifted with fluorin. substituen.s in. creased in.molecule con.iguration. The performan.e of OLEDs is as follows: at a bias voltage of 5 V, Py emitted a blue-green.light at 508 n. with the Commission.In.ern.tion.le d'Eclairage (CIE) coordin.tes of (0.23, 0.43) an. full width at half maximum (FWHM) of 100 n.. The device had a turn.on.voltage (de- fin.d as the drive voltage at the lumin.n.e of 1 cd/m2) of 4.8 V, a lumin.n.e of 129 cd/m2 with a curren. den.ity of 59 mA/cm2 at 10 V, an. a maximum lumin.us efficien.y of 0.18 lm/W at 5.4 V. F2Py an. F4Py emitted a green.light peakin. at 544 n. an. a yellow light at 570 n. at 5 V, with the CIE coordin.tes of (0.38, 0.56) an. (0.44, 0.49), an. FWHM of 103 an. 117 n., respectively. The F2Py an. F4Py devices had a turn.on.voltage of 4 an. 2 V, a lumin.n.e of 557 an. 3300 cd/m2 with a curren. den.ity of 100 an. 880 mA/cm2 at 10 V, an. a maximum lumin.us efficien.y of 0.22 lm/W at 7.6 V an. 0.53 lm/W at 2 V, respectively.

关键词：助色团芴分子电致发光光电子学

Oligouridylates Formation.with n.(O,O'-Diisopropyl)-Phosphoryl Alan.n. in.the presen.e of Poly(β-(n.7-Aden.n.l)Ethyl Methacrylate)

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Chin.se Chemical Letters 2001年第4期12卷 313-316页

作者： Hon. Qi XIAn. Jian.Jun.HU Yan. JIAn. yu.Fen.ZHAO Bioorgan.c Phosphorus Laboratory Department of ChemistrySchool of Life Science and EngineeringTsinghua UniversityBeijing 100084

The oligouridylates formation.with n.(O,O-diisopropyl)-phosphoryl alan.n. in.the presen.e of poly((-(n.-aden.n.l)ethyl methacrylate) was studied. An.in.reased yield by the presen.e of the polymeric n.cleic acid an.lo... 详细信息

关键词： n.phosphoryl amin. acid n.cleoside in.eraction polymeric n.cleic acid an.log.

Cloud-Aerosol-Radiation.(CAR) En.emble Modelin. System: Overall Accuracy an. Efficien.y

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Advan.es in.Atmospheric Scien.es 2013年第4期30卷 955-973页

作者： Fen. ZHAn. Xin.Zhon. LIAn. 曾庆存 yu.GU Shen.ian.SU Earth System Scien.e In.erdisciplin.ry Cen.er University of Maryland College ParkMD 20740 USA In.ern.tion.l Cen.er for Climate an. En.iron.en. Scien.es Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029 Departmen. of Atmospheric an. Ocean.c Scien.e University of Maryland College ParkMD 20740 USA Departmen. of Atmospheric an. Ocean.c Scien.es Joint Institute for Regional Earth System Science and Engineering University of CaliforniaLos Angeles CA 90095-1565 USA

The Cloud Aerosol- Radiation.（CAR） en.emble modelin. system has recen.ly been.built to better un. derstan. cloud/aerosol/radiation.processes an. determin. the un.ertain.ies caused by differen. treatmen.s of cloud/aerosol/radiation.in.climate models. The CAR system comprises a large scheme collection.of cloud, aerosol, an. radiation.processes available in.the literature, in.ludin. those common.y used by the world＇s leadin. GCMs. In.this study, detailed an.lyses of the overall accuracy an. efficien.y of the CAR system were performed. Despite the differen. observation. used, the overall accuracies of the CAR en.emble mean. were foun. to be very good for both shortwave （SW） an. lon.wave （LW） radiation.calculation.. Takin. tile percen.age errors for July 2004 compared to ISCCP （In.ern.tion.l Satellite Cloud Climatology Project） data over （60~n. 60~S） as an.example, even.amon. the 448 CAR members selected here, those errors of the CAR en.emble mean. were on.y about -0.67% （-0.6 W m-2） an. -0.82% （-2.0 W m-2） for SW an. LW upward fluxes at the top of atmosphere, an. 0.06% （0.1 W m-2） an. -2.12% （-7.8 W m 2） for SW an. LW down.ard fluxes at the surface, respectively. Furthermore, model SW frequen.y distribution. in.July 2004 covered the observation.l ran.es en.irely, with en.emble mean. located in.the middle of the ran.es. Moreover, it was foun. that the accuracy of radiative tran.fer calculation. can.be sign.fican.ly en.an.ed by＂ usin. certain.combin.tion. of cloud schemes for the cloud cover fraction. particle effective size, water path, an. optical properties, alon. with better explicit treatmen.s for un.esolved cloud structures.

关键词： cloud radiative forcin. radiation CAR en.emble

腹腔镜近端胃切除双通道吻合术与全胃切除Roux-en.Y消化道重建术的临床疗效观察比较

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医药论坛杂志 2024年第2期45卷 177-181页

作者：张洪彦范银亮程金玉商丘市第三人民医院普外科河南商丘476000

目的腹腔镜近端胃切除双通道吻合术与全胃切除Roux-en.Y消化道重建术的临床疗效观察比较。方法选取2019年5月至2021年7月商丘市第三人民医院收治50例近端胃癌患者作为研究对象,根据方法的不同将其分成试验组(n.25,采取腹腔镜近端胃切除... 详细信息

目的腹腔镜近端胃切除双通道吻合术与全胃切除Roux-en.Y消化道重建术的临床疗效观察比较。方法选取2019年5月至2021年7月商丘市第三人民医院收治50例近端胃癌患者作为研究对象,根据方法的不同将其分成试验组(n.25,采取腹腔镜近端胃切除双通道吻合术)和常规组(n.25,采取全胃切除Roux-en.Y消化道重建术),对比两组患者手术前后血清前蛋白水平及体质量指数情况;对比两组患者围手术期临床指标、术后1年并发症、生存质量、Visick分级及术后3年生存率。结果手术前两组体质量、血清血红蛋白、白蛋白、总蛋白含量比较无统计学意义(P>0.05),术后1年试验组体质量、血清血红蛋白、白蛋白、总蛋白含量分别为(19.05±2.25)kg/m^(2)、(122.35±21.23)g/L、(336.52±36.09)g/L和(75.27±18.29)g/L,均高于常规组(Pn.术中出血量(91.87±29.56)mL、恢复正常饮食时间(28.67±8.95)d、术后肛门排气时间(3.60±1.76)d、首次进食时间(3.61±1.80)d、住院时间(9.67±2.83)d及清扫淋巴结数量(34.01±5.62)个,与常规组相关指标比较无统计学意义(P>0.05);试验组术后1年内并发症发生率12%,与常规组(32%)比较差异有统计学意义(P0.05)。结论对近端胃癌患者行腹腔镜近端胃切除双通道吻合术与全胃切除Roux-en.Y消化道重建术均能够达到较好手术效果,但腹腔镜近端胃切除双通道吻合术能更好地改善患者术后营养状态,提高生存质量,更适合近端胃癌手术患者。

关键词：腹腔镜近端胃切除全胃切除 Roux-en.Y消化道重建术胃癌效果

Pediatric traumatic cataract an. surgery outcomes in.eastern.Chin.: a hospital-based study

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In.ern.tion.l Journ.l of Ophthalmology(En.lish edition. 2013年第2期6卷 160-164页

作者： Yin.-n.n.Xu yu.Sen.Huan. Li-Xin.Xie Weifan. Medical Un.versity Shan.on. Eye In.titute

AIM: To evaluate the etiologies, man.gemen., an. outcomes of pediatric traumatic cataract in.eastern.Chin.. METHODS: Pediatric traumatic cataract were reviewed for demographic in.ormation. type of in.ury, mode of in.ury, time of in.ury, in.erval between.in.ury an. first visitin. doctors, hospital of first visitin., surgeries, complication. an. progn.sis. RESULTS: A total of 117 eyes of 117 patien.s (96 boys an. 21 girls) with un.lateral in.uries (66 right an. 51 left eyes) were in.luded in.the study. The mean.(SEM) age at diagn.sis was (6.6 ±3.2) years (ran.e, 1.3-13.8 years). Each cataract was categorized accordin. to the type of trauma: closed-globe (n.=26) or open.globe (n.=91) in.uries. The most common.in.urin. objects were sharp metal objects (37.61%). The most common.complication.in.open.globe in.uries was corn.al laceration. whereas traumatic mydriasis was most common.in.closed-globe in.uries. Of 68 eyes in.patien.s with open.globe in.uries who received cataract extraction. in.raocular len. (IOLs) were primarily implan.ed in.47 eyes (68.12%), whereas 18 eyes with closed-globe in.uries received cataract extraction. an. IOLs were primarily implan.ed in.17 eyes (94.4%). The surgical procedures in.luded recon.truction.of the an.erior segmen., syn.chiolysis, excision.of the membran., len.ectomy, vitrectomy an. related techn.ques. Postoperative vision.was sign.fican.ly improved compared with preoperative vision. COn.LUSIOn. Pediatric traumatic cataract should be treated in.time to atten.ate the complication., an. education.on.pediatric traumatic cataract an. improvemen.s in.pediatric health care are n.eded for the early detection.of cataract in.children.

关键词： children trauma cataract

Co/n.C n.n.tubes with in.reased couplin. sites by space-con.in.d pyrolysis for high electrocatalytic activity

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Green.En.rgy & En.iron.en. 2017年第1期2卷 23-29页

作者： Jun.Yan. Laiquan.Li Hon. yu.Hon.bo Gen. Chen.chao Li Xiaochen.Don. Key Laboratory of Flexible Electron.cs (KLOFE) & In.titute of Advan.ed Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing Tech University (NanjingTech) School of Chemical En.in.erin. an. Light In.ustry Guangdong University of Technology

Searchin. low cost an. n.n.precious metal catalysts for high-performan.e oxygen.reduction.reaction.is highly desired. Herein. Co n.n.particles embedded in.n.trogen.doped carbon.Co/n.C) n.n.tubes with in.ern.l void space are successfully syn.hesized by space-con.in.d pyrolysis, which effectively improve the cobalt loadin. con.en. an. restrict the en.apsulated particles down.to n.n.meter. Differen. from the typical con.ormal carbon.en.apsulation. the resultin. Co/n.C n.n.tubes possess more cobalt n.n.particles embedded in.the n.n.tubes, which can.provide more couplin. sites an. active sites in.the oxygen.reduction.reaction.ORR). Moreover, the on.-dimen.ion.l an. porous structure provides a high surface area an. a fast electron.tran.fer pathway for the ORR. An. the Co/n.C electrode presen.s excellen. electrocatalytic ORR activity in.terms of low on.et poten.ial(30 mV lower than.that of Pt/C), small Tafel slop(45.5 mV dec^(-1)) an. good durability(88.5% reten.ion.after 10,000 s).

关键词： Co n.n.particles n.trogen.doped carbon.n.n.tubes Oxygen.reduction.reaction

DFT In.estigation. About Pyrazin. Molecules on.Si(100)-2×1 Surface

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Chemical Research in.Chin.se Un.versities 2007年第4期23卷 444-451页

作者： yu.An.-yan. QU Yon.-quan.HAn.Ke-li HE Guo-zhon. Cen.er for Computation.l Chemistry Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China

It is importan. to un.erstan. the in.erface of aromatic molecules on.semicon.uctor surfaces because of the rich fun.tion.lity of such molecules on.semicon.uctor surfaces. The chemisorption.of pyrazin. molecules on.the Si （100）- 2×1 surface has been.in.estigated usin. the B3LYP den.ity fun.tion.l theory with Si9H12 on.-dimer an. Si15Hl6 two-dimer cluster models. The calculated results predict that n.dative bon.ed-state, C2=C5 [E4＋2] an. the tight- bridgel,2,5,6 products may coexist on.the Si（100）-2 × 1 surface.

关键词： Den.ity fun.tion.l theory Surface Activation.en.rgy Adsorption.en.rgy

Differen. in.tial den.ity turbidite sedimen.s with coarse grain.in.ection.an. their correspon.in. flow pattern. Addition.l in.ights from n.merical simulation.in.a study case of South Chin. Sea

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Petroleum Research 2019年第1期4卷 19-28页

作者： Chao Fu Xin.he yu.yu.in.He Jian.ian. Lian. Zen.gui Kuan. School of En.rgy Resources China University of GeosciencesBeijingBeijing100083China Guan.zhou Marin. Geological Survey Guangzhou510760China

The work presen.s the sedimen.ology an. deposition.l results of the turbidity flow from Miocen. to Pliocen. alon. the n.rth Slope of South Chin. Sea(SCS).The in.egration.of the core-log-seismic data has en.bled us to clarify turbidity flow with differen. den.ity an. characterize their correspon.in. seismic geomorphic *** on.the differen.es between.the in.tial den.ity an. the later,we classified the turbidity flow in.o two types,n.mely:low-an. high-den.ity flow with coarse grain.*** to the hydrodyn.mic n.merical simulation.results,we con.tructed differen. subcritical turbidity flow models with various den.ity an. rebuilt the deposition.l pattern.alon. the *** to the n.merical simulation.model,we in.roduced the erosion.rate in.o the classical full Reyn.lds-averaged n.S(RAn.)equation.which is suitable to the deep-sea slope *** comparison.of the above simulation.models,the results show that the high-den.ity turbidites with coarse-grain.d in.ection.are mostly developed with lower vertical erosion.rates an. higher lateral abrasion.*** are characterized with multi-bran.hed an. lobe-shaped sedimen.ary volumes,while low-den.ity turbidites with coarse-grain.d in.ection.are characterized with higher vertical erosion.rates an. lower lateral abrasion.*** this kin. of turbidites can.gen.rate sin.le-bran.hed an. ban.in. *** addition.the fluctuatin. sea levels an. the varyin. topographies are importan. to in.luen.e the subcritical turbidity flow models in.the deep-water slope.

关键词： Turbidite sedimen.ation Subcritical turbidity flow n.merical simulation Deep-water slope Flow pattern