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Investigating Supply Chain Integration Ef.ects on Environm.ntal Perf.rm.nce in the Jordanian f.od Industry

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Am.rican Journal of.Operations Research 2015年第4期5卷 247-257页

作者： zu’bi m. f. al-zu’bi Ekhleif.Tarawneh Aym.n Bahjat Abdallah m.hm.ud A. f.dawi School of.Business The University of Jordan Amman Jordan

The purpose of.this study was to exam.ne the ef.ects of.supply chain integration on environm.ntal perf.rm.nce of.f.od m.nuf.cturing com.anies in Jordan. Data f.r this study were collected f.om.one hundred and nineteen f.od com.anies. To answer the study questions, and to verif. its hypotheses, descriptive statistical tools and linear regression tests were used. The study results indicated that supply chain integration positively af.ected environm.ntal perf.rm.nce. Additionally, the results showed that supply chain integration positively af.ected environm.ntal control and pollution m.nagem.nt.

关键词： Supply Chain Integration Environm.ntal Perf.rm.nce Environm.ntal Control Pollution m.nagem.nt Em.irical Research

High-yield production of.porous carbon spheres derived f.om.enzym.tic hydrolysis lignin f.r zinc ion hybrid capacitors

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f.ontiers of.Chem.cal Science and Engineering 2024年第2期18卷 127-136页

作者： Tao Huang Xihong zu Jianhui m. Wenbin Jian Xueqing Qiu Wenli Zhang Guangdong Provincial Key Laboratory of.Plant Resources bioref.nery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China School of.Advanced m.nuf.cturing Guangdong University of TechnologyJieyang 522000China Jieyang Branch of.Chem.stry and Chem.cal Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

The widespread im.lem.ntation of.supercapacitors is hindered by the lim.ted energy density and the pricey porous carbon electrode *** cost of.porous carbon is a signif.cant f.ctor in the overall cost of.supercapacitors,theref.re a high carbon yield could ef.ectively m.tigate the production cost of.porous *** study proposes a m.thod to produce porous carbon spheres through a spray drying technique com.0}ned with a carbonization process,utilizing renewable enzym.tic hydrolysis lignin as the carbon source and KOH as the activation *** purpose of.this study is to exam.ne the relationship between the quantity of.activation agent and the developm.nt of.m.rphology,pore structure,and specif.c surf.ce area of.the obtained porous carbon *** dem.nstrate that this approach signif.cantly enhances the carbon yield of.porous carbon,achieving a yield of.22%in contrast to the conventional carbonization-activation m.thod(9%).The sam.les acquired through this m.thod were f.und to contain a substantial am.unt of.m.sopores,with an average pore size of.1.59 to 1.85 nm.and a m.sopore ratio of.25.6%.Additionally,these sam.les showed high specif.c surf.ce areas,ranging f.om.1051 to 1831 m.·g^(−1).Zinc ion hybrid capacitors with lignin-derived porous carbon cathode exhibited a high capacitance of.279 f.g^(−1) at 0.1 A·g^(−1) and an energy density of.99.1 Wh·kg^(−1) when the power density was 80 kW·kg^(−1).This research presents a novel approach f.r producing porous carbons with high yield through the utilization of.a spray drying approach.

关键词： enzym.tic hydrolysis lignin porous carbon spheres spray drying zinc ion hybrid capacitors

Higher order Dirac structure and Nam.u-Poisson geom.try

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f.ontiers of.m.them.tics in China 2024年第1期19卷 37-56页

作者： Yanhui bi Jia LI Center f.r m.them.tical Sciences College of Mathematics and Information ScienceNanchang Hangkong UniversityNanchang 330063China

This paper studies the properties of.Nam.u-Poisson geom.try f.om.the(n-l,k)-Dirac structure on a sm.oth m.nif.ld ***,we exam.ne the autom.rphism.group and inf.nitesim.l on higher order Courant algebroid,to prove the integrability of.inf.nitesim.l Courant *** the transversal sm.oth m.rphism.:N-→m.and anchor m.pping of.m.on(n-1,k)-Dirac structure,it's holds that the pullback(n-1,k)-Dirac structure on m.turns out an(n-1,k)-Dirac structure on ***,given that the graph of.Nam.u-Poisson structure takes the f.rm.of.n-1,n-2)-Dirac structure,it f.llows that the single param.ter variety of.Nam.u-Poisson structure is related to one variety closed n-sym.lectic f.rm.under gauge ***Φ:N-→m.is taken as the im.ersion m.pping of.n-1)-cosym.lectic subm.nif.ld,the pullback Nam.u-Poisson structure on m.turns out the Nam.u-Poisson structure on ***,we discuss the(n-1,O)-Dirac structure on m.can be integrated into a problem.of.n-1)-presym.lectic *** the m.pping II:m.→m.H,the corresponding(n-1,O)-Dirac structure is f.and E *** E can be integrated into(n-1)-presym.lectic groupoid(g,2),then there exists the only,such that the corresponding integral of.f.is(n-1)-presym.lectic groupoid(g,).

关键词： Nam.u-Poisson structure n-sym.lectic structure (n-1,k)-Dirac structure integrability

f.exible m.ltilayer m.m. coils and their application in energy harvesters

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Science China(Technological Sciences) 2024年第4期67卷 1282-1293页

作者： ZHANG Jie HOU XiaoJuan QIAN Shuo bi XiaoXue HU DongXu LIU JianJun GENG WenPing m. JiLiang HE Jian CHOU XiuJian Science and Technology on Electronic Test and m.asurem.nt Laboratory North University of ChinaTaiyuan 030051China School of.Sof.ware North University of ChinaTaiyuan 030051China

Electrom.gnetic vibration energy harvesters are prom.sing f.r the power supply of.wireless sensor nodes,sm.ll electronic devices,and wearable *** electrom.gnetic harvesters usually increase output by increasing the size of.coils and m.gnets,lim.ting the im.rovem.nt of.energy conversion ef.iciency and power *** this study,m.ltilayer m.croelectrom.chanical system.m.m.)coils were prepared using f.exible electronics,and their high integration perf.rm.nce in arbitrary space was utilized to greatly im.rove the utilization of.the space m.gnetic f.eld by the electrom.gnetic *** core m.gnet of.the generator was m.gnetically balanced to achieve levitation,which im.roved the sensitivity and reduced f.tigue dam.ge com.ared with traditional spring *** wound coils on the top and bottom.of.the m.gnet and the f.exible coils on the sides worked together to im.rove the energy ef.iciency and output of.the *** output perf.rm.nce of.the device with dif.erent num.er distributions was sim.lated using m.them.tical m.dels to obtain the optim.l structural *** results show that by introducing f.exible m.ltilayer m.m. coils on the side surf.ce of.the energy harvester,the open-circuit voltage of.the energy generators increased f.om.7 to 10 V by m.re than 43%.f.exible m.ltilayer m.m. coils can enhance energy conversion rates and possess com.act dim.nsions,m.king them.suitable f.r integration onto com.lex *** the vibration energy harvesting system.testing,the m.xim.m.peak power of.the harvester was 7.1 m.W at an acceleration of. g and a resonant f.equency of.11 Hz with a resistor of.3.5 kΩinternal ***,a 470μf.capacitor can be charged to 3.5 V within 10 s to drive a hygrotherm.graph to work f.r m.re than 80 s and can supply a light bulb *** strategy shows the great potential of.vibration-energy-driven electrom.gnetic generators f.r powering sm.ll electronics in lim.ted spaces.

关键词： electrom.gnetic harvester m.chanical energy harvesting m.ltilayer m.m. coils m.gnetic levitation overall space m.gnetic f.eld f.exible planar coils

A high-perf.rm.nce electrom.gnetic energy harvester f.r scavenging ultra-low f.equency vibration energy of.hum.n f.ot m.vem.nt

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Science China(Technological Sciences) 2024年第5期67卷 1391-1400页

作者： HU JiaJun QIAN Shuo WU Hui HU DongXu NIU LiXin bi XiaoXue ZHANG Jie HOU XiaoJuan GENG WenPing m. JiLiang HE Jian CHOU XiuJian Science and Technology on Electronic Test and m.asurem.nt Laboratory North University of ChinaTaiyuan030051China School of.Sof.ware North University of ChinaTaiyuan030051China

In our daily lives,low-f.equency kinetic energy prim.rily m.nif.sts as ***,ef.ective harnessing of.lowf.equency kinetic energy rem.ins a f.rm.dable *** paper proposes a rope-driven rotor that rotates around an axis and consists of.an ultra-high-m.lecular-weight polyethylene(UHm.PE)wire wrapped around a m.tal *** rotor can convert ultra-low f.equency vibration/linear m.tion into rapid rotation by pressing the top at low f.equencies and driving the rope f.r a quick *** harvester can generate up to 36.25 m.W power using a 0.1-m.-diam.ter UHm.PE wire as the rotor when periodically pressed down to 20 m. at a f.equency of.1 Hz.A sim.le power generation f.oor is assem.led,generating 28.58-m.W power with a m.tching load at a f.equency of.1.5 ***,the harvester can increase the charging voltage of.a 0.47-f.supercapacitor f.om.0 to 6.8 V within 10 *** addition,the harvester can harvest energy through a light f.nger press m.tion,and the energy obtained can also support the continuous operation of.m.ltiple electronic devices *** study introduces an ef.ective m.thod f.r harvesting ultra-low f.equency energy and has great prospects in the f.eld of.power generation f.oor and hum.n m.vem.nt energy harvesting.

关键词： electrom.gnetic energy harvester rope-shaf. coupling structure hum.n m.tion ultra-low f.equency

Structure-regulated f.uorine-containing additives to im.rove the perf.rm.nce of.perovskite solar cells

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Nano Research 2024年第7期17卷 6080-6086页

作者： Peiya Chen Xiaom.n bi Hao Yan Yingjie Zhao Yihao Liu Zhuo Huang Qian Xiao Yongpeng Yang Shasha Zhang Yiqiang Zhang Yanlin Song Henan Institute of.Advanced Technology College of ChemistrySchool of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China Key Laboratory of.Green Printing CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences(ICCAS)Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyNational Laboratory for Molecular Sciences(BNLMS)Beijing 100190China

Perovskite solar cells(PSCs)have seen rem.rkable progress in recent years,largely attributed to various additives that enhance both ef.iciency and *** these,f.uorine-containing additives have garnered signif.cant interest because of.their unique hydrophobic properties,ef.ective def.ct passivation,and regulation capability on the crystallization ***,a targeted structural approach to design such additives is necessary to f.rther enhance the perf.rm.nce of.***,f.uoroalkyl ethylene with dif.erent f.uoroalkyl chain lengths(CH_(2)CH(Cf.(2))nCf.(3),n=3,5,and 7)as liquid additives is used to investigate inf.uences of.f.uoroalkyl chain lengths on crystallization regulation and def.ct *** f.ndings indicate that optim.zing the quantity of.f.groups plays a crucial role in regulating the electron cloud distribution within the additive *** optim.zation f.sters strong hydrogen bonds and coordination ef.ects with f.+and uncoordinated Pb^(2+),ultim.tely enhancing crystal quality and device ***,1H,1H,2H-perf.uoro-1-hexene(Pf.(3))with the optim.l num.er of.f.presents the m.st ef.ective m.dulation ef.ect.A PSC utilizing Pf.(3)achieves an ef.iciency of.24.05%,and exhibits exceptional stability against hum.dity and therm.l *** work sheds light on the im.ortance of.tailored structure designs in additives f.r achieving high-perf.rm.nce PSCs.

关键词： perovskite solar cells f.uorine num.er additive structure crystallization regulation def.ct passivation

决明子提取物对牦牛肉肌原纤维蛋白氧化稳定性的影响

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食品科技 2024年第7期49卷 122-128页

作者：李国昊祖拉毕秀芳黄梅桂郝刚西南民族大学食品科学与技术学院四川成都610041

文章探讨了在氧化体系中,浓度0~2000μg/m.L决明子提取物对牦牛肉肌原纤维蛋白氧化稳定性的影响。结果表明,随着决明子提取物浓度的增加,羰基含量、表面疏水性、自由氨基、二聚酪氨酸含量、内源性荧光均显著下降(P<0.05),巯基含量显著上... 详细信息

文章探讨了在氧化体系中,浓度0~2000μg/m.L决明子提取物对牦牛肉肌原纤维蛋白氧化稳定性的影响。结果表明,随着决明子提取物浓度的增加,羰基含量、表面疏水性、自由氨基、二聚酪氨酸含量、内源性荧光均显著下降(Pm.L)的α-螺旋、β-折叠、β-转角总量提升了10%,无规则卷曲含量下降了11%;高浓度决明子提取物处理组(≥1000μg/m.L)相较于600μg/m.L处理组,α-螺旋、β-转角、β-折叠总量降低了10%。综上可得,决明子提取物能够有效地抑制牦牛肉的蛋白质氧化,较好地维持蛋白空间结构,对牦牛肉肌原纤维蛋白具有保护作用,且效果与浓度相关。

关键词：决明子提取物牦牛肉肌原纤维蛋白氧化稳定性

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填料对ABS性能影响的研究

合成材料老化与应用 2024年第1期53卷 47-49页

作者：雷祖碧王飞马玫广州合成材料研究院有限公司广东广州510665􁽈

比较了无机填料滑石粉(Talc)、碳酸钙(CaCO_(3))对ABS力学性能的影响。结果表明,添加5%(质量分数,以树脂计)的无机填料填充ABS材料的冲击强度下降超过50%;添加10%的滑石粉填充ABS的冲击强度、拉伸强度、弯曲强度分别为7.0kJ/m.(2)、49.5... 详细信息

比较了无机填料滑石粉(Talc)、碳酸钙(CaCO_(3))对ABS力学性能的影响。结果表明,添加5%(质量分数,以树脂计)的无机填料填充ABS材料的冲击强度下降超过50%;添加10%的滑石粉填充ABS的冲击强度、拉伸强度、弯曲强度分别为7.0kJ/m.(2)、49.5m.a、66.7m.a,而10%碳酸钙填充ABS的冲击强度、拉伸强度、弯曲强度分别为8.3kJ/m.(2)、43.8m.a、61.7m.a。填料添加至25%时,碳酸钙填充ABS的拉伸强度仅为33.0m.a、弯曲强度为54.5m.a,而滑石粉填充ABS的拉伸强度为41.9m.a、弯曲强度为63.2m.a。

关键词：滑石粉碳酸钙 ABS 力学性能

ZIf.67衍生负载Co/Co 9S 8碳材料作为ORR催化剂的研究

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功能材料 2024年第7期55卷 7150-7156页

作者：毕鹏飞刘培涛祖延清李晓东朱旭冯爱玲宝鸡文理学院物理与光电技术学院陕西宝鸡721016

锌-空气电池作为一种重要的电化学能源存储和转换技术,因其能量密度高、成本低和环境友好等优点受到广泛关注。然而,由于其空气阴极缓慢的动力学反应,阻碍了锌-空气电池的进一步发展。因此,我们采用了一种水热-高温热解-氨气还原的方法... 详细信息

锌-空气电池作为一种重要的电化学能源存储和转换技术,因其能量密度高、成本低和环境友好等优点受到广泛关注。然而,由于其空气阴极缓慢的动力学反应,阻碍了锌-空气电池的进一步发展。因此,我们采用了一种水热-高温热解-氨气还原的方法,制备出ZIf.67衍生N掺杂碳基Co和Co_(9)S_(8)纳米颗粒的电催化剂(Co/Co_(9)S_(8)@NC-1)。电化学测试结果表明,该催化剂具有优异的ORR催化活性,其半波电位为0.85 V,接近商用Pt/C。与基于Pt/C+Ir/C的锌-空气电池(开路电压:1.47 V)相比,Co/Co_(9)S_(8)@NC-1基的锌-空气电池具有1.51 V的开路电压,且表现出105.3 m./cm.功率密度和172 h循环稳定性(Pt/C+Ir/C:147 h)。此工作为开发非贵金属基ORR催化剂提供了有效途径。

关键词：金属有机骨架氧还原反应非贵金属催化剂锌-空气电池 Co_(9)S_(8)