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    题名 作者 年代 出处 被引量
1发展生物燃料乙醇对我国区域农业发展的影响分析显示文摘本文利用“中国农业可持续发展决策支持系统”分析了不同燃料乙醇发展政策可能对我国农产品价格、整体和各区域农业生产及净产值等的影响。研究结果表明:燃料乙醇发展将显著提高能源作物的农产品价格,对农业发展和农民增收将起到积极的促进作用,但对稻谷和小麦等粮食安全有一些负面影响;燃料乙醇发展对不同区域及不同农户的影响有较大差异;多数地区的农业部门都将从中受益,获益的大小主要取决于各地区在种植能源作物上的比较优势。研究也指出,未来的重点应放在非粮作物以及第二代生物燃料乙醇技术上(即用纤维素生产乙醇),并且应该提高在这些方面的科研投资水平。黄季焜 仇焕广 Michiel Keyzer Erika Meng Wim van Veen 2009经济学(季刊)2009,8,1:30
2基于FPGA的跳时延发射参考系统的基带数字信号处理(英文)显示文摘超宽带(UWB)通信通过传输能量极低的极短脉冲和占用超大带宽来完成短距离的高速通信。由于其极高的数据传输率,抗多径衰落,低成本和低功耗等诸多优点,成为短距离无线通信系统的研究热点。在有诸多优点的同时,它的实现又面临着很多挑战,比如系统采样率极高,对同步精度要求极高,信道估计极为复杂。而跳时延发射参考(DelayHopped Transmitted Reference—DHTR)系统是超宽带系统的一个低复杂度的实际可行的方案:通过在模拟域做相关操作,大大降低了系统的采样率和数字信号处理的数据量;把传输的参考脉冲作为信号脉冲的污损模板,绕过了复杂的信道估计问题。本文的工作是AIRLINK[4]项目演示任务的一部分。文中说明了DHTR UWB通信系统的工作原理;分析给出系统的框架结构;通过对文献[3]给出的接收信号数学模型进行简化,分析得到了同步解调的方法;并针对DHTR系统符号同步方法,提出了两种电路实现的结构—串行同步和并行同步结构;然后用FPGA实现了DHTR系统发射端和接收端的基带数字信号处理部分;最后搭建了一个完整的验证平台,对系统进行了功能验证。此系统的电路综合结果表明系统实现了低复杂度、低成本,证明了它在超宽带通信中的可行性和实用性。王易因 Renevan Leuken Alle-Jan van der Veen 曾晓洋 章倩苓 2006光学精密工程2006,14,5:4
3Can molecular biomarkers replace a clinical risk score for resectable colorectal liver metastasis?显示文摘In resectable colorectal liver metastasis(CRLM) the role and use of molecular biomarkers is still controversial. Several biomarkers have been linked to clinical outcomes in CRLM, but none have so far become routine for clinical decision making. For several reasons, the clinical risk score appears to no longer hold the same predictive value. Some of the reasons include the ever expanding indications for liver resection, which now increasingly tend to involve extrahepatic disease, such as lung metastases(both resectable and non-resectable) and the shift in indication from 'what is taken out'(e.g., how much liver has to be resected) to 'what is left behind'(that is, how much functional liver tissue the patient has after resection). The latter is amenable to modifications by using adjunct techniques of portal vein embolization and the associating liver partition and portal vein ligation for staged hepatectomy techniques to expand indications for liver resection. Added to this complexity is the increasing number of molecular markers, which appear to hold important prognostic and predictive information, for which some will be discussed here. Beyond characteristics of tissue-based genomic profiles will be liquid biopsies derived from circulating tumor cells and cell-free circulating tumor DNA in the blood. These markers are present in the peripheral circulation in the majority of patients with metastatic cancer disease. Circulating biomarkers may represent more readily available methods to monitor, characterize and predict cancer biology with future implications for cancer care.Torhild Veen Kjetil Soreide 2017World Journal of Gastrointestinal Oncology2017,9,3:4
4Carbonation of calcium-containing mineral and industrial by-products显示文摘The use of carbon dioxide(CO_(2))and calciumcontaining by-products from industrial activities is receiving increasing interest as a route to valuable carbonate materials while reducing CO_(2) emissions and saving natural resources.In this work,wet-chemical experimental data was assessed,which involved the carbonation of three types of materials in aqueous solutions,namely,1)wollastonite,a calcium silicate mineral,2)steelmaking slag,a by-product of steel production,and 3)paper bottom ash(PBA)from waste paper incineration.Aims were to achieve either a high carbonation degree and/or a pure carbonate product with potential commercial value.Producing a pure precipitated calcium carbonate(PCC)material that may find use in paper industry products puts strong requirements on purity and brightness.The parameters investigated were particle size,CO_(2)pressure,temperature,solid/liquid ratio,and the use of additives that affect the solubilities of CO_(2)and/or calcium carbonate.Temperatures and pressures were varied up to 180℃and 4 MPa.Data obtained with the wollastinite mineral allowed for a comparison between natural resources and the industrial by-product materials,the latter typically being more reactive.With respect to temperature and pressure trends reported by others were largely confirmed,with temperatures above 150℃introducing thermodynamic limitations depending on CO_(2)pressure.The influence of additives showed some promise,although costs may make recycling and reuse of additives a necessity for a largescale process.When using steelmaking slag,magnetic separation may remove some iron-containing material from the process(although this is far from perfect),while the addition of bicarbonate supported the removal of phosphorous,aside from improving calcium extraction.The experiments with paper bottom ash(PBA)gave new data,showing that its reactivity resembles that of steelmaking slag,while its composition results in relatively pure carbonate product.Also,with PBA no additives were needed to achieve this.Ron ZEVENHOVEN Anders WIKLUND Johan FAGERLUND Sanni ELONEVA Ben IN’T VEEN Hans GEERLINGS Gert VAN MOSSEL Harold BOERRIGTER 2010Frontiers of Chemical Science and Engineering2010,4,2:2
5Policy Options for China's Bio-ethanol Development and the Implications for Its Agricultural Economy显示文摘潜力在农业生产,食物价格和农民上简历乙醇扩大影响的现在的纸分析是在中国的不同区域的收入。结果显示出受欢迎的那增加因为生产简历乙醇的化工物品将在农业产品的价格导致大增加。increase in prices 将以更低的米饭和小麦生产的成本在化工物品的生产触发重要上升。学习也表明农民的收入上的简历乙醇的影响主要在区域和农民组之中变化。以后给简历乙醇生产的期望的扩大,并且为在中国的化工物品生产的有限陆地资源,为简历乙醇的化工物品在中国的简历乙醇节目的大规模扩大前要求小心的分析的不同庄稼的生存能力。在中国的简历乙醇生产应该更正在依靠简历乙醇技术的第二代(即使用纤维素生产简历乙醇) ,并且中国的政府应该在这个领域里增加研究投资。Huanguang Qiu Jikun Huang Michiel Keyzer Wim van Veen 2008China & World Economy2008,16,6:2
6ACE inhibition attenuates radiation-induced cardiopulmonary damage显示文摘Sonja J. van der Veen Ghazaleh Ghobadi Rudolf A. de Boer Hette Faber Megan V. Cannon Peter W. Nagle Sytze Brandenburg Johannes A. Langendijk Peter van Luijk Robert P. Coppes 2014Radiotherapy and Oncology2014,,:2
7The relation between morphology and hydrotreating activity for supported MoS2 particles 显示文摘HENSEN E J M KOOYMAN P J Van der MEER Y Van der KRAAN A M de BEER V H J Van VEEN J A R Van SANTEN R A 2001J Catal2001,199,2:1
8CO oxidation over supported gold catalysts-' Inert' and 'Active' support materials and their role for the oxygen supply during reaction 显示文摘SCHUBERT M M HACKENBERG S VAN VEEN A C 2001Journal of Catalysis2001,197,:1
9GnRHa to trigger final oocyte maturation:a time to reconsider显示文摘Youssef M van der Veen F van Wely M 2010Hum Reprod2010,25,2:1
10Long-term follow-up of a randomized clinical trial of non-mesh versus mesh repair of primary inguinal hernia 显示文摘van Veen RN Wijsmuller AR Vrijland WW 2007Br J Surg2007,94,:1
11Effect of Sn on Pt/C catalysts for the methanol electro-oxidation 显示文摘FRELINK T VISSCHER W VAN VEEN J A R 1994Electrochim Acta1994,39,:1
12Structure-function analysis of multidrug transporters in Lactococcus lactis显示文摘van Veen H W Putman M Margolles A 1999Biochim Biophys Acta1999,1461,2:1
13Uncertainty calculations for the preparation of primary gas mixtures 1 Gravimetry 显示文摘Alink A Vander Veen A M H 2000Metrologia2000,37,:1
14Combined overexpression of genes of the er- gosterol biosynthetic pathway leads to accumulation of sterols in Saccharo- myces cerevisiae 显示文摘Veen M Stahl U Lang C 2003Fems Yeast Research2003,4,:1
15Mental health of Dutch peacekeping veterans 10-25 years after deployment 显示文摘Klaassens ER van Veen T We~rts JM 2008Eur Psychiatry2008,23,7:1
16Catalytic mechanism and product specificity of cyclodextrin glycosyltransferase,a prototypical trans-glycosylase from theα-amylase显示文摘Uitdehaag J C M van der Veen B A Dijkhuizen L 2002Enzyme and Microbial Technology2002,30,3:1
17Shift of the posteroin- fefior aspect of the capsule for recurrent posterior glenohumeral in- stability 显示文摘Bigliani LU PoIlock RG Mcil Veen SJ et at 1995The Journal of Bone and Joint Surgery1995,77,7:1
18The uptake of potassium,nitrate,water and oxygen by a maize root system in relation to its size 显示文摘Veen B W 1997Experimental Biology and Medicine1997,28,6:1
19Assimilate translocation to the rhizosphere of two wheat lines and subsequent utilization by rhizosphere microorganisms at two soil nitrogen concentrations 显示文摘Liljeroth E Van Veen J A Miller H J 1990Soil Biology and Biochemistry1990,22,:1
20Direction-of-arrival estimation for constant modulus signals显示文摘Leshem A van der Veen 1999IEEE Transactions on Signal Processing1999,47,11:1
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