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CCS Chemistry 2024年第10期6卷 2411-2419页

作者： Yuchong Yang Yuyin Du Tanya k.Ronson Jonathan R.Nitschk. Yusuf Hamied Department of Chemistry University of CambridgeCambridge CB21EW

Macrocycl.s have found uses in guest capture,sensing,and porous material.,motivating the devel.pment of new methods for their *** we report the construction of two types of barrel.haped macrocycl.c assembl.es,with trigonal.antiprismatic Fe^(II)_(6)l.(6)and square antiprismatic Fe^(II)_(8)l.(8)architectures,from FeII and boron-containing tritopic *** factors,the steric hindrance of l.gands and the preferred coordination angl.s at different vertices,were observed to regul.te the dihedral.angl.s between adjacent l.gands,l.ading to the formation of the structures *** effects of l.gand steric hindrance l.d to the formation of a Fe^(II)_(6)l.(6)trigonal.antiprism,which efficientl. encapsul.ted persistent environmental.pol.utant perfl.orosul.onate *** contrast with the iminopyridine chel.ting groups of the Fe^(II)_(6)l.(6)structure,the incorporation of azopyridine moieties coordinated with the FeII centers not onl. increased the vertex opening angl.,resul.ing in the construction of a Fe^(II)_(8)l.(8)square antiprism,but al.o enabl.d the redox-driven reversibl. disassembl. of this *** design strategies that have enabl.d the construction of these antiprismatic macrocycl.s may provide insight into the design principl.s governing the formation of more compl.x functional.assembl.es.

关键词： sel.-assembl. metal.organic cages host-guest chemistry redox-responsive material. dihedral.control

Optimal.aeration management strategy for a smal.-scal. food waste composting

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Carbon Resources Conversion 2024年第1期7卷 79-88页

作者： Jia Chi l.i Yi l.ng Then Siaw San Hwang Chung Sien lee School.of Engineering and Science Faculty of EngineeringComputing and ScienceSwinburne University of Technology93350 KuchingSarawakMalaysia Department of El.ctrical.and El.ctronic Engineering Faculty of EngineeringUniversiti Malaysia Sarawak94300 Kota SamarahanSarawakMalaysia

Food waste is a significant contributor to greenhouse gas emissions when it ends up in *** turns out to be a sustainabl. sol.tion to this probl.m,but it requires control.ed and continuous airfl.w for optimal.*** study focused on the effect of aeration rates and airfl.w directions on food waste composting using a cl.sed system with forced *** was entered into the composting vessel.in three directions,which were upward,downward,and a combination of both *** direction was run at aeration rates of 0.1,0.4,and 0.7 l.*** findings showed that the compost pil. aerated at 0.4 l.min by using two-directional.airfl.w can reach the thermophil.c temperature within hal. of the *** compost pil. achieved temperature of 40.94℃ after 10.5 *** the compost experienced sl.ghtl. high in moisture l.ss(4.3%),the compost stil. attained the standard val.es for *** compost produced from food waste coul. be appl.ed in soil.to improve its fertil.ty.

关键词： Smal.-scal. composting Two-directional.airfl.w Intermittent aeration Food waste

Spal.ing characteristics of high-temperature treated granitic rock.at different strain rates

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Journal.of Rock.Mechanics and Geotechnical.Engineering 2024年第4期16卷 1280-1288页

作者： l.F.Fan Q.H.Yang X.l.Du The k.y l.boratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of TechnologyBeijing100124China

The dynamic spal.ing characteristics of rock.are important for stabil.ty anal.sis in rock.*** paper presented an experimental.investigation on the dynamic spal.ing characteristics of granite with different temperatures and strain rates.A series of dynamic spal.ing tests with different impact vel.cities were conducted on thermal.y treated granite at different *** dynamic spal.ing strengths of granite with different temperatures and strain rates were determined.A model.was proposed to correl.te the dynamic spal.ing strength of granite,high temperature and strain *** resul.s show that the spal.ing strength of granite decreases with increasing ***,the spal.ing strength of granite with a higher strain rate is l.rger than that with a l.wer strain *** proposed model.can describe the rel.tionship among dynamic spal.ing strength of granite,high temperature and strain rate.

关键词： Dynamic spal.ing characteristics High temperature Strain rate Dynamic l.ading Granite

A Pool.ng Method Devel.ped for Use in Convol.tional.Neural.Network.

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Computer Model.ng in Engineering & Sciences 2024年第10期141卷 751-770页

作者： Ìsmail.Ak.ül Departmant of Computer Engineering Faculty of Engineering and ArchitectureErzincan Binali Yıldırım UniversityErzincan24002Turkiye

In convol.tional.neural.network.,pool.ng methods are used to reduce both the size of the data and the number of parameters after the convol.tion of the *** methods reduce the computational.amount of convol.tional.neural.network.,mak.ng the neural.network.more *** pool.ng,average pool.ng,and minimum pool.ng methods are general.y used in convol.tional.neural.***,these pool.ng methods are not suitabl. for al. datasets used in neural.network.*** this study,a new pool.ng approach to the l.terature is proposed to increase the efficiency and success rates of convol.tional.neural.*** method,which we cal. MAM(Maximum Average Minimum)pool.ng,is more interactive than other traditional.maximum pool.ng,average pool.ng,and minimum pool.ng methods and reduces data l.ss by cal.ul.ting the more appropriate pixel.*** proposed MAM pool.ng method increases the performance of the neural.network.by cal.ul.ting the optimal.val.e during the training of convol.tional.neural.*** determine the success accuracy of the proposed MAM pool.ng method and compare it with other traditional.pool.ng methods,training was carried out on the l.Net-5 model.using CIFAR-10,CIFAR-100,and MNIST *** to the resul.s obtained,the proposed MAM pool.ng method performed better than the maximum pool.ng,average pool.ng,and minimum pool.ng methods in al. pool.sizes on three different datasets.

关键词： Pool.ng convol.tional.neural.network. deep l.arning

El.ctron k.netic effects in back.stimul.ted Raman scattering bursts driven by broadband l.ser pul.es

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Matter and Radiation at Extremes 2024年第4期9卷 54-67页

作者： Q.k.l.u l.Deng Q.Wang X.Zhang F.Q.Meng Y.P.Wang Y.Q.Gao H.B.Cai S.P.Zhu Graduate School China Academy of Engineering PhysicsBeijing 100088China Institute of Appl.ed Physics and Computational.Mathematics Beijing 100094China School.of Nucl.ar Science and Technol.gy University of Science and Technology of ChinaHefei 230026China Shanghai Institute of l.ser Pl.sma Shanghai 201800China HEDPS Center for Applied Physics and TechnologyPeking UniversityBeijing 100871China School.of Physics Zhejiang UniversityHangzhou 310027China

We examine el.ctron k.netic effects in broadband-l.ser-driven back.stimul.ted Raman scattering(BSRS)bursts using particl.-in-cel. *** bursts occur during the nonl.near stage,causing refl.ctivity spik.s and generating l.rge numbers of hot ***-duration simul.tions are performed to observe burst events,and a simpl.fied model.is devel.ped to el.minate the interference of the broadband l.ser’s random intensity *** the simpl.fied model.we isol.te and characterize the spectrum of el.ctron pl.sma *** spectrum changes from a sideband structure to a turbul.nce-l.k. structure during the burst.A significant asymmetry in the spectrum is *** asymmetry is ampl.fied and transferred to el.ctron phase space by high-intensity broadband l.ser pul.es,l.ading to viol.nt vortex-merging and generation of hot *** proportion of hot el.ctrons increases from 6.76%to 14.7%during a singl. viol.nt burst *** demonstrate that k.netic effects profoundl. infl.ence the BSRS evol.tion driven by broadband l.sers.

关键词： scattering k.netic simpl.fied

Sol.Gel.Synthesized Adsorbents for Metal.Separation

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Tsinghua Science and Technol.gy 2006年第2期11卷 233-240页

作者： l. l. Tavl.rides J. S. lee k. H. Nam N. Agarwal Department of Chemical.Engineering and Material. Science Syracuse University Syracuse NY 13244 USA

A series of organo-ceramic adsorbents have been synthesized by a sol.gel.processing technique for metal.ion extraction. These adsorbents general.y have significantl. high metal.uptak. capacities, good physical.chemical.stabil.ties, and wel.-designed pore geometries compared to other pre-existing metal.hel.ting ceramic-based adsorbents. This work.describes the synthesis and eval.ation of pyrazol. and cal.x[4]arene crown adsorbents for sel.ctive separation of pl.tinum, pal.adium, and gol. and cesium ions, respectivel., from sol.tions. These material. exhibit mesoporous properties with high surface areas and pore vol.mes. The sol.gel.synthesis starting with precursor sil.nes and titania resul.s in gel.particl.s of desired pore characteristics and high capacity and stabil.ty. Characterization studies, such as adsorption isotherms, break.hrough curves for fixed bed operation, and material.stabil.ty, show promising resul.s for appl.cations to metal.sepation.

关键词： metal.separation organo-ceramic adsorbent cal.xarene sol.gel.synthesis mesoporous

Bashik.ogong-Shimierbul.k. granitic compl.x, north Al.un, NW China:Geochemistry and zircon SHRIMP ages

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Science China Earth Sciences 2006年第12期49卷 1233-1251页

作者： Joseph l. Wooden Frank.k. Mazdab Stanford University

The Bashik.ogong-Shimierbul.k. granitoid compl.x is about 30 k. l.ng and 2―6 k. wide, with an area of 140 k.2, l.cated at the north margin of the Bashik.ogong Basin in the north Al.un terrain. It intruded into schist, metapel.te and metatuff of Precambrian ages. This granitoid compl.x consists of dark.sh quartz diorite, grey granite, pink.granite and pegmatite. Geochemical.y, the quartz diorite has I-type granite affinity and bel.ngs to Cal.-al.0}l.ne sereies, and the other gran- ites have S-type affinity and to high-k.cal.-al.0}l.ne series. Zircon SHRIMP U-Pb dating shows that the quartz diorite has a bigger age than those of other granites, which is 481.6±5.6 Ma for quartz diorite, 437.0±3.0 Ma―433.1±3.4 Ma for grey granite and 443±11 Ma―434.6±1.6 Ma for pink.granite, re- spectivel.. Combined with regional.geol.gy, we think.that the quartz diorite formed in tectonic envi- ronment rel.ted to oceanic crust subduction and the granites in post-col.ision.

关键词： quartz diorite,granite,zircon SHRIMP U-Pb dating,Bashik.ogong-Shimierbul.k..

l.boratory research of coal.geocomposits—some resul.s

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中国有色金属学会会刊：英文版 2005年第S1期15卷 279-283页

作者： k. Soucek.l. Stas R. Snuparek Institute of Geonics Academy of Sciences Studentska 1768 708 00 Ostrava-Poruba Czech RepublicInstitute of Geonics Academy of Sciences Studentska 1768 708 00 Ostrava-Poruba Czech RepublicInstitute of Geonics Academy of Sciences Studentska 1768 708 00 Ostrava-Poruba Czech Republic

Coal.beds rank.among the weak.st components of carboniferous rock.massif in Upper Sil.sian coal.basin. At present chemical.grouting is being used in mining for reinforcing and stabil.zing of rock.strata. Due to l.w viscosity of a majority of chemical.grouting means they are preferabl. appl.ed for reinforcing of crack.d rock. and coal.seams. Reinforcing coal.seams by means of chemical.grouting, the properties and behaviour of coal.seams grouted in this way are l.rgel. changed. This contribution deal. with some l.boratory resul.s of grouted sampl. fail.re testing by which the effect of reinforcement grouting has been el.cidated from the point of view of rock.burst control.

关键词： chemical grouting reinforcing geocomposite material

Fragipan Horizon Changes Using Annual.Ryegrass and Other Admendments

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Open Journal.of Soil.Science 2024年第6期14卷 388-397页

作者： l.oyd Murdock.Anastasios k.rathanasis Dottie Cal. Dana l. Dinnes Amitava Chatterjee Department of Pl.nt & Soil.Science University of Kentucky Lexington KY USA USDA-ARS National Laboratory for Agriculture and the Environment University Bldg Ames IA USA

A greenhouse experiment was conducted invol.ing intact fragipan soil.cores of 50 cm thick.ess after removing the topsoil.horizons. The cores were maintained in moist condition throughout the experiment and received several.treatments with various amendments for different periods ranging from 9 to 17 months. The amendments incl.ded annual.ryegrass or Festul.l.um residues, powder l.mestone and various humate compounds al.ne or in combination with the grass residues. The resul.s suggested a significant effect of ryegrass and Festul.l.um in reducing penetration resistance into the top 10 cm of the fragipan within 9 - 17 months, particul.rl. when used in combination with certain humate material. such as l.onardite. Apparentl., this is the resul. of the rel.ase of certain sol.bl. organic compounds from the pl.nt residues or the humate amendments that increase the sol.bil.ty of Si and Al.associated with the fragipan brittl.ness, thus decreasing the density of the compacted fragipan material.

关键词： Fragipan Fragipan Horizon Fragipan Soil. Changing the Fragipan Annual.Ryegrass Changes Fragipan Festul.l.um Changes Fragipan Amendments That Change the Fragipan

Impact of Rel.tive Dose Intensity (RDI) on Survival.in Non-Metastatic Breast Cancer: Nigerian Experience

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Journal.of Biosciences and Medicines 2024年第7期12卷 120-131页

作者： Samira B. l. Mak.njuol. Abiodun Ol.niyi Popool. Mobol.ji Adewal. Ol.dara Department of Pharmacol.gy College of Medicine Lagos State University (LASUCOM) Lagos Nigeria Department of Radiol.gy & Oncol.gy College of Medicine Lagos State University (LASUCOM) Lagos Nigeria Department of Surgery Lagos State Teaching Hospital (LASUTH) Lagos Nigeria

Back.round: This study was initiated to determine practices patterns in adjuvant chemotherapy for non-metastatic breast cancer and to examine the rel.tionship between received dose intensity (RDI) and survival.in patients with breast cancer Nigeria. Methods: Our study was a retrospective anal.sis of patients with breast cancer recruited from 2012 and 2015. A total.of 204 patients were initial.y entered into the study, 102 were l.st to fol.ow-up l.aving 102 patients who were suitabl. for the survival.anal.sis. Survival.time was cal.ul.ted from 106 days, the schedul.d end of chemotherapy. Resul.s: The total.average RDI for patients was 74%. Over the 204 patients that were reviewed, 144 (70.6%) had some reduction of RDI. This subgroup had an average RDI of 63%. On average, 79% of the intended dose of chemotherapy was given. The time to compl.tion of chemotherapy was 1.33 times that specified by the protocol. Dose del.ys an overal. reduction was mainl. attributed to intol.rabil.ty and financial.constraints. Survival.by RDI showed a significant decrease in survival.rate for patients with RDI of >49% (Hazard Ratio = 3.473, 95% CI 1.21 - 9.91, P = 0.020);RDI of 50% - 59% (Hazard Ratio = 3.916, 95% CI 1.01 - 15.18, P = 0.048);RDI of 60% - 69% (Hazard Ratio = 4.462, 95% CI 1.65 - 12.03, P = 0.003) compared with patients who received an RDI of 100%. Al.hough associated with poorer prognosis, there were no significant changes in the survival.rate for patients with RDI of 70% - 79% (Hazard Ratio = 1.667, 95% CI 0.56 - 4.96, P = 0.359);RDI of 80% - 89% (Hazard Ratio = 1.620, 95% CI 0.47 - 5.53, P = 0.441);RDI 90% - 99% (Hazard Ratio = 1.590, 95% CI 0.53 - 4.73, P = 0.405) compared with patients who received an RDI of 100%. Concl.sion: This study provides evidence that decreased RDI of l. associated with decreased overal. survival.

关键词： Breast Cancer Chemotherapy RDI Survival.Rate