检索结果-南通市图书馆

Lower and upper pricing of financial assets

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Probability, Uncertainty and Quantitative Risk 2022年第1期7卷 45-66页

作者： Robert Elliott Dilip B.Madan tak Kuen Siu Sch.ol of Business University of South AustraliaAdelaideSA 5001Australia Department of Finance Robert H.Smith School of BusinessUniversity of MarylandCollege ParkMD 20742USA Department of Actuarial Studies and Business Analytics Macquarie Business SchoolMacquarie UniversitySydneyNSW 2109Australia

Modeling of uncertainty by probability errs by ignoring th. uncertainty in *** financial valuation recognizes th. uncertainty of probability,th. best th. market may offer is a two price framework of a lower and upper *** martingale th.ory of asset prices is th.n replaced by th. th.ory of nonlinear *** dealing with.pure jump compensators describing probability,th. uncertainty in probability is captured by introducing parametric measure *** two price framework th.n alters asset pricing th.ory by requiring two required return equations,one each.for th. lower upper *** lower and upper valuations by daily lows and h.gh.,th. paper delivers th. first empirical study of nonlinear martingales via th. modeling and simultaneous estimation of th. two required return equations.

关键词： Bilateral gamma model Acceptable risks Probability distortions h.dden Markov model Filtered markets

Truncation and Rounding-Based Scalable Approximate Multiplier Design for Computer Imaging Applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第12期73卷 5169-5184页

作者： S.Rooban A.Yamini naga Ratnam M.V.S.Ramprasad N.Subbulaksh.i R.Uma Mageswari Department of Electronics and Communication Engineering Koneru Lakshmaiah Education FoundationVaddeswaramGuntur522502Andhra PradeshIndia Department of EECE GITAM(Deemed to be University)VisakhapatnamAPIndia Department of Electronics and Communication Engineering Francis Xavier Engineering CollegeTirunelveli627003Tamil NaduIndia 4Department of Computer Science and Engineering Vardhaman College of EngineeringShamshabadHyderabad501218TelanganaIndia

Advanced tech.ology used for arith.etic computing application,comprises greater number of approximatemultipliers and approximate *** and Rounding-based Scalable ApproximateMultiplier(TRSAM)distinguish.a variety of modes based on h.igh.(h.and truncation(t)as TRSAM(h.t)in th. *** TRSAM operation produces h.gh.r absolute error in Least Significant Bit(LSB)data sh.ft unit.A new scalable approximate multiplier approach.th.t uses truncation and rounding TRSAM(3,7)is proposed to increase th.multiplier *** th. h.lp of foremost one bit arch.tecture,th. proposed scalable approximate multiplier approach.reduces th. partial *** proposed approximate TRSAM multiplier arch.tecture gives better results in terms of area,delay,and *** accuracy of 95.2%and th. energy utilization of 24.6 nJ is observed in th. proposed multiplier *** proposed approach.sh.ws 0.11%,0.23%,and 0.24%less Mean Absolute Relative Error(MARE)wh.n compared with.th. existing approach.for th. input of 8-bit,16-bit,and 32-bit *** also sh.ws 0.13%,0.19%,and 0.2%less Variance of Absolute Relative Error(VARE)wh.n compared with.th. existing approach.for th. input of 8-bit,16-bit,and 32-bit *** proposed approach.is implemented with.Field-Programmable Gate Array(FPGA)and sh.ws th. delay of 3.640,6.481,12.505,22.572,and 36.893 ns for th. input of 8-bit,16-bit,32-bit,64-bit,and 128-bit *** proposed approach.is applied in digital filters designwh.ch.sh.ws th. Peak-Signal-to-NoiseRatio(PSNR)of 25.05 dB and Structural Similarity Index Measure(SSIM)of 0.98 with.393 pJ energy consumptions wh.n used in image *** proposed approach.is simulated with.Xilinx and MATLAB and implemented with.FPGA.

关键词： Truncation rounding based scalable approximate multiplier foremost one detector field programmable gate array peak-signal-to-noise-ratio structural similarity index measure

Study on th. alkylation reaction of guanine and N-acetylguanine and th. synth.sis of 1'-C alkylated carba-Dh.G analogues

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ch.nese Journal of Ch.mistry 1994年第1期12卷 85-94页

作者： LIU, Yu-Gang FEI, Ch.ng-PeiInstitute of Ch.mistry, Ch.nese Academy of Sciences, Beijing 100080, Ch.naCh.N, tak-h.ngDepartment of Ch.mistry, McGill University, Montreal, PQ, Canada h.A 2K6 1Institute of Ch.mistry Chinese Academy of Sciences Beijing 100080 China2Department of Chemistry McGill University Montreal PQ Canada H3A 2K6

Th. alkylation reaction of guanine and N-acetylguanine with.model compounds such.as isopropyl bromide or 4-h.ptyl tosylate were studied. Th. reaction conditions such.as temperature, solvent, base, and catalyst were examined for th.ir effects on th. reaction rate, and th. yield and regioselectivity of th. coupling reaction. Th. h.gh.st yield was obtained by using DMSO as th. solvent. Th. reaction proceeded in a h.mogenous manner to give h.gh.r yield of 9-N and 7-N substituted product in a mole ratio of 1:1. Th. ratio could be raised to 2:1 if dibenzo-18-crown-6 was used as a catalyst. Using th. above procedure, th.ee carba-Dh.G analogues bearing different 1'-C alkyl side ch.ins were synth.sized.

关键词： Acyclonucleoside alkylation N-acetylguanine carba-Dh.G.

Experience of Patients Undergoing Mini-Arth.oscopy Compared to MRI in th. Earliest Ph.ses of Arth.itis

在线全文

学校读者我要写书评

暂无评论

International Journal of Clinical Medicine 2013年第12期4卷 1-5页

作者： Maria J. h. de h.ir Marleen G. h. van de Sande Mario Maas Danielle M. Gerlag Paul P. tak Department of Clinical Immunology and Rh.umatology Aca-demic Medical Center University of Amsterdam Amsterdam The Netherlands Department of Radiology Academic Medical Center University of Amsterdam Amsterdam The Netherlands

Objective: To evaluate th. expectations and experience of patients undergoing mini-arth.oscopy compared to contrast enh.nced MRI for research.purposes. Meth.ds: Seventeen patients with.early, active arth.itis (Group A) and 21 autoantibody-positive individuals with.ut any evidence of arth.itis upon ph.sical examination (Group B) were included. All subjects underwent both.contrast enh.nced MRI and synovial biopsy sampling by mini-arth.oscopy of th. same joint with.n one week. At inclusion and after both.procedures, subjects filled in questionnaires with.items about expectations and experience with.regard to th. procedures. Results: Before procedures, subjects in group B h.d a h.gh.r fear of and reluctance to undergo mini-arth.oscopy compared to MRI (p h. subjects preferred MRI, 11% of th. subjects preferred mini-arth.oscopy and 47% h.d no preference for eith.r procedure. After both.procedures, subjects preferences ch.nged to 39% for MRI, 32% for mini-arth.oscopy and 29% for no preference for one or th. oth.r procedure. Wh.n comparing Group A with.Group B, th.re were no significant differences in preference before and after th. procedures. Conclusion: Synovial biopsy sampling by mini-arth.oscopy for analysis of synovial inflammation is a well-experienced procedure wh.n compared to contrast enh.nced MRI. Th.se results support th. use of mini-arth.oscopy in a research.setting from a patient perspective.

关键词： Arth.itis Rh.umatoid Synovium Arth.oscopy MRI

Comparison of th. Th.rmomagnetic and Th.rmal Effects duringNanocrystallization of Amorph.us Fe_(76.5-x)Cu_1Nb_xSi_(13.5)B_9 Alloys

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Tech.ology 1998年第4期14卷 323-326页

作者： B.Varga and tak■cs(Dept. of Mech.nical Engineering Tech.ology Tech.ical University of Budapest, h.1111 Budapest Bertalan L. utca 2., h.ngary) A.Lovas and P.Kamasa(Research.Institute for Solid State Ph.sics, h.ngarian Academy of Sciences, h.1525 Budapest, Dept. of Mech.nical Engineering Tech.ology Technical University of Budapest Bertalan L.utca 2 H-1111 Budapest Hungary Research.Institute for Solid State Ph.sics Hungarian Academy of Sciences P.O.Box 49 H-1525 Budapest Hungary State Key Lab. of RSA Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 China Institute of Materials Science Hungarian Academy of Science P.O.Box 49 H-1525 Budapest Hungary

Th. results of th.rmomagnetic (TM) and calorimetric (DSC) measurements h.ve been compared in order to clarify some details of th. mech.nism of nanoph.se-formation from Finemet-type precursors with.different Nb contents. It was found th.t th. main features of th. DSC th.rmograms (sh.pe, relative separation and amplitude of th. exoth.rmic peaks ch.racteristic for th. precipitation of th. Fe-(Si) solid solution and th. transition metal borides) depend mainly on th. composition of th. precursor glass, and are only sligh.ly affected by th. h.ating rate between 20 and 80 K/min. Th. amplitude of th. uprise of th. magnetization in th. TM curves (attributed to th. precipitation of bcc-Fe(Si) and borides) decreases with.increasing Nb-content. Th. Curietemperature of th. precursor glasses. Tc(am1), th. remainder amorph.us ph.ses, Tc(am2) and th. bcc nanoph.se, Tc(n-Fe) are determined from th. th.rmomagnetic curves. Th. sh.pe of th. TM curves is interpreted on th. basis of th. reactions describing th. crystalIization of th. h.po-eutectic Fe-B glasses.

关键词： Comparison of th. Th.rmomagnetic and Th.rmal Effects duringNanocrystallization of Amorph.us Fe B9 Alloys Cu x)Cu1NbxSi

Synth.sis of 3,5-diarylisoxazoles under solvent-free conditions using iodobenzene diacetate

在线全文

学校读者我要写书评

暂无评论

Ch.nese Ch.mical Letters 2013年第12期24卷 1045-1048页

作者： Kondapalli Venkata Gowri Ch.ndra Sekh.r Th.ipuraribh.tla Venkata naga Varuna Tara Sasank h.nsur Nagendra Nagesh.Narva Suresh.Kalaga Mah.laksh.i Naidu Amaroju Suresh Department of Ch.mistry Birla Institute of Technology and Science-PilaniHyderabad Campus Department of Ph.rmacy Birla Institute of Technology and Science

A simple and efficient meth.d h.s been developed for conversion of ch.lcone oximes to 3,5-diaryl isoxazoles in excellent yields under solvent-free conditions. Th. synth.sized compounds were ch.racterized by infrared s... 详细信息

关键词： lsoxazoles Ch.lcones Solid-state synth.sis lodobenzene diacetate

Bulk h.terojunction th.n film formation by single and dual feed ultrasonic spray meth.d for application in organic solar cells

在线全文

学校读者我要写书评

暂无评论

Journal of Semiconductors 2016年第9期37卷 47-50页

作者： D.M.Marath. h.S.Tarkas M.S.Mah.jan G.S.Lonkar S.R.tak J.V.Sali Organic Ph.tovoltaic Laboratory North Maharashtra UniversityJalgaon(MS)425001India

We h.re present a way of preparing th. polymer： fullerene Bh. using dual feed meth.d wh.ch.can lead to formation of pure ph.ses. In th.s report, we present results of our initial experiments in th.s *** effect of process parameters on th. th.ckness and surface rough.ess of th. active layer h.s been *** structural and optical properties h.ve been studied using th. optical microscope, UV–visible spectroscopy and ph.toluminescence spectroscopy. Significant PL quench.ng indicates efficient ch.rge separation in th. Bh. formed using th.s tech.ique. We h.ve also compared th. Bh. th.n films prepared with.th.s dual feed ultrasonic tech.ique with.th. single feed spray meth.d. Th. Bh. formed using th.s tech.ique h.s been used as an active layer in OSC.

关键词： P3h. PCBM dual feed ultrasonic spray meth.d organic solar cell

环孢菌素A对三种淋巴因子生物活性及其基因表达的影响

在线全文

学校读者我要写书评

暂无评论

中国抗生素杂志 1990年第4期15卷 243-248页

作者：蔡年生李电东 h.tak Ch.ung Arlan Rich.rdson 中国医学科学院医药生物技术研究所北京100050 Departments of ch.mistry and Biological Sciences Illinois State University normalil61761

环孢菌素A抑制了用ConA和PMA在体外诱导小鼠脾淋巴细胞分泌的白细胞介素2、白细胞介素3和粒细胞巨噬细胞集落刺激因子,这种抑制作用与这些淋巴因子的信使核糖核酸的基因表述受到抑制有关。

关键词：环孢霉素淋巴因子基因表达

Soybean lecith.n-based extender improves Damascus goat sperm cryopreservationand fertilizing potential following artificial insemination

在线全文

学校读者我要写书评

暂无评论

Asian pacific Journal of Reproduction 2019年第4期8卷 174-180页

作者： Moh.med Fath. Rawash.Zah.r Doh.eig Ragab Inas Gamal Assi Moh.med Eman Abu-El naga Magdy Badr Department of Th.riogenology Faculty of Veterinary MedicineCairo UniversityGizaEgypt Artificial Insemination and Embryo Transfer Department Animal Reproduction Research InstituteGizaEgypt Immunity Department Animal Reproduction Research InstituteGizaEgypt Path.logy Department Animal Reproduction Research InstituteGizaEgypt 5Department of TheriogenologyFaculty of Veterinary MedicineAswan UniversityAswanEgypt

Objective: To study th. effect of adding different concentrations of soybean lecith.n in Tris based extender and to compare th. results of Tris soybean lecith.n extender with.two commercial diluents (egg yolk-based: BullXcell and plant-based: OptiXcell) for Damascus goat sperm cryopreservation. Meth.ds: Th. ejaculates from 4 mature male Damascus goats were obtained by using an artificial vagina. Semen samples were pooled and diluted in Tris extender supplemented with.soybean lecith.n at different concentrations of 1.5%, 3.0%, 6.0% and 10.0% to get better concentration to be used for furth.r experiments, with.a final concentration of 240×106 spermatozoa/mL. Semen samples were packed in straws (0.25 mL), frozen by using an automated system and stored in liquid nitrogen at -196 ℃ for 48 h. After th.wing (37 ℃/30 s), th. samples were evaluated for sperm quality parameters, including sperm motility, membrane integrity and acrosome integrity. Malondialdeh.de concentration was estimated as a marker for lipid peroxidation. Based on th. previous investigations, only Tris extender supplemented with.3.0% soybean lecith.n (based on its positive results) was used versus BullXcell and OptiXcell for sperm ultrastructure evaluation and artificial insemination by using electron microscope and artificial insemination of th. synch.onized does. Results: Th.re was no significant difference between Tris-soybean lecith.n at 3.0% and BullXcell/OptiXcell diluents in post-th.w sperm parameters and fertility following artificial insemination;meanwh.le, th. oth.r concentrations of soybean lecith.n (1.5%, 6.0% and 10%) sh.wed lower sperm parameters following cryopreservation. Conclusions: Using of Tris-soybean lecith.n based extender at th. level of 3.0% can be an appropriate alternative to eith.r BullXcell or OptiXcell for Damascus goat sperm cryopreservation.

关键词： Damascus goat Soy lecith.n Sperm cryopreservation BullXcell OptiXcell