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| 1 | Phytate:impact on environment and human nutrition.A challenge for molecular breeding显示文摘Phytic acid (PA) is the primary storage compound of phosphorus in seeds accounting for up to 80% of the total seed phosphorus and contributing as much as 1.5% to the seed dry weight. The negatively charged phosphate in PA strongly binds to metallic cations of Ca, Fe, K, Mg, Mn and Zn making them insoluble and thus unavailable as nutritional factors. Phytate mainly accumulates in protein storage vacuoles as globoids, predominantly located in the aleurone layer (wheat, barley and rice) or in the embryo (maize). During germination, phytate is hydrolysed by endogenous phytase(s) and other phosphatases to release phosphate, inositol and micronutrients to support the emerging seedling. PA and its derivatives are also implicated in RNA export, DNA repair, signalling, endocytosis and cell vesicular trafficking. Our recent studies on purification of phytate globoids, their mineral composition and dephytinization by wheat phytase will be discussed. Biochemical data for purified and characterized phytases isolated from more than 23 plant species are presented, the dephosphorylation pathways of phytic acid by different classes of phytases are compared, and the application of phytase in food and feed is discussed. | Lisbeth BOHN Anne S. MEYER Sren K. RASMUSSEN | 2008 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2008，9，3： | 30 |
| 2 | 涡轮级轮缘封严内非定常流场的准三维LDV测量显示文摘研究涡轮级封严内流动和主流的相互作用、相互影响,进一步认识盘腔内燃气入侵等非定常现象,急需流场实验数据验证。针对轮缘封严内空间狭窄、光路安排困难等问题,本文发展了一种用于测量涡轮级轮缘封严内非定常流场的准三维LDV技术,即测量分两步,首先在机匣上安置二维测速系统用符合方式测出径向、切向速度及湍流度,再在轮毂内安置一维探头重复测量,从两次测量数据中计算出轴向速度;该技术借助锁相采样等技术能测出不同动静叶相对位置情况下封严及盘腔内的周期性非定常流场细节,本文给出了部分典型的动态流场测量结果。 | 马宏伟 Dieter E Bohn Achim Decker Bernd Rudzinski | 2004 | 航空动力学报2004，19，4： | 14 |
| 3 | Investigation of the steam-cooled blade in a steam turbine cascade显示文摘With the increasing demand for electricity,an efficiency improvement and thereby reduced CO2 emissions of the coal-fired plants are expected in order to reach the goals set in the Kyoto protocol.It can be achieved by a rise of the process parameters.Currently,live steam pressures and temperatures up to 300 bars and 923 K are planned as the next step.Closed circuit steam cooling of blades and vanes in modern steam turbines is a promising technology in order to establish elevated live steam temperatures in future steam turbine cycles.In this paper,a steam-cooled test vane in a cascade with external hot steam flow is analyzed numerically with the in-house code CHTflow.A parametric analysis aiming to improve the cooling effectiveness is carried out by varying the cooling mass flow ratio.The results from two investigated cases show that the steam cooling technique has a good application potential in the steam turbine.The internal part of the vane is cooled homogeneously in both cases.With the increased cooling mass flow rate,there is a significant improvement of cooling efficiency at the leading edge.The results show that the increased cooling mass flow ratio can enhance the cooling effectiveness at the leading edge.With respect to trailing edge,there is no observable improvement of cooling effectiveness with the increased cooling mass flow.This implies that due to the limited dimension at the trailing edge,the thermal stress cannot be decreased by increasing the cooling mass flow rate.Therefore,impingement-cooling configuration at the trailing edge might be a solution to overcome the critical thermal stress there.It is also observed that the performance of the cooling effective differs on pressure side and suction side.It implicates that the equilibrium of the cooling effectiveness on two sides are influenced by a coupled relationship between cooling mass flow ratio and hole geometry.In future work,optimizing the hole geometry and cooling steam supply conditions might be the solutions for an equivalent cooling effectiveness along whole profile. | Dieter Bohn Jing Ren Karsten Kusterer | 2007 | 航空动力学报2007，22，5： | 6 |
| 4 | Identification of human papillomavirus in esophageal squamous papillomas显示文摘AIM:To investigate the presence of human papillomavirus (HPV) in esophageal squamous papilloma (ESP) and determine p16, p53 and Ki67 expression in a Mexican cohort. METHODS: Nineteen cases diagnosed as ESP, corresponding to 18 patients were reviewed; nineteen cases of normal esophageal mucosa were used as negative controls. HPV detection was performed by amplified chromogenic in situ hybridization (ACISH) using a wide spectrum-cocktail probe and PCR. RESULTS: The average age at presentation was 46.3 years (range 28-72 years). Patients included four (22.22%) males and 14 (77.77%) females. The most frequent location was upper third (11 cases), followed by middle third (3 cases) and unknown site (5 cases). Immunohistochemistry (IHC) revealed basal and focal p53 expression in 17 cases (89%); p16 was expressed in eight cases (42.10%) and the Ki67 index ranged from 10% to 30%. HPV was detected in 14 out of 16 cases (87.5%) by ACISH: Twelve showed diffuse nuclear patterns and two showed granular patterns. HPV DNA was identified by PCR in 12 out of 14 cases (85.7%). Low-risk HPV types were detected in the most of the cases. CONCLUSION: This study provides identification of HPV infection in almost 80% of ESP using either ACISH or PCR; overall, all of these lesions show low expression of cell-cycle markers. We suggest ACISH as an alternative diagnostic tool for HPV detection in ESP. | Olga L Bohn Leticia Navarro Jesus Saldivar Sergio Sanchez-Sosa | 2008 | World Journal of Gastroenterology2008，14，46： | 5 |
| 5 | 全球水性涂料市场持续增长显示文摘在全球涂料市场中,水性涂料市场是全球涂料市场中一个令人瞩目且不断增长的技术领域。水性涂料进入了多个不同的最终使用领域。由于人们越来越重视可持续发展,我们认为水性涂料将会获得持续的发展,未来几年中该市场将持续增长。全球水性涂料的总市场估值为670亿欧元和240亿L,占全球涂料市场总产值的51%和总产量的57%。然而,大部分水性涂料市场都在建筑装饰涂料领域内,其中,全球水性涂料市场占该市场的90%以上。在非建筑装饰涂料领域,水性涂料市场的总估值为85亿欧元和22亿L,约占非建筑装饰涂料市场产值的10%和产量的13%。图1~图3列出了该数据。 | Douglas Bohn | 2021 | 中国涂料2021，36，12： | 3 |
| 6 | Investigation on heat transfer enhancement and pressure loss of double swirl chambers cooling显示文摘By merging two standard swirl chambers,an alternative cooling configuration named double swirl chambers(DSC)has been developed.In the DSC cooling configuration,the main physical phenomena of the swirl flow in swirl chamber and the advantages of swirl flow in heat transfer augmentation are maintained.Additionally,three new physical phenomena can be found in DSC cooling configuration,which result in a further improvement of the heat transfer:(1)impingement effect has been observed,(2)internal heat exchange has been enhanced between fluids in two swirls,and(3)“∞”shape swirl has been generated because of cross effect between two chambers,which improves the mixing of the fluids.Because of all these improvements,the DSC cooling configuration leads to a higher globally-averaged thermal performance parameter(Nu/Nu_(∞)/(f/f0)^(1/3))than standard swirl chamber.In particular,at the inlet region,the augmentation of the heat transfer is nearly 7.5 times larger than the fully developed non-swirl turbulent flow and the circumferentially averaged Nusselt number coefficient is 41%larger than the standard swirl chamber.Within the present work,a further investigation on the DSC cooling configuration has been focused on the influence of geometry parameters e.g.merging ratio of chambers and aspect ratio of inlet duct on the cooling perfomance.The results show a very large influence of these geometry parameters in heat transfer enhancement and pressure drop ratio.Compared with the basic configuration of DSC cooling,the improved configuration with 20%to 23%merging ratio shows the highest globally-averaged themal performance parameter.With the same cross section area in tangential inlet ducts,the DSC cooling channel with larger aspect ratio shows larger heat transfer enhancement and at the same time reduced pressure drop ratio,which results in a better globally-averaged themal performance parameter. | Gang Lin Karsten Kusterer Dieter Bohn Takao Sugimoto Ryozo Tanaka Masahide Kazari | 2013 | Propulsion and Power Research2013，2，3： | 3 |
| 7 | Conjugate calculation of a film-cooled blade for improvement of the leading edge cooling configuration显示文摘Great efforts are still put into the design process of advanced film-cooling configurations.In particular,the vanes and blades of turbine front stages have to be cooled extensively for a safe operation.The conjugate calculation technique is used for the three dimensional thermal load prediction of a fim-cooled test blade of a modern gas turbine.Thus,it becomes possible to take into account the interaction of internal flows,external flow,and heat transfer without the prescription of heat transfer ooefficients.The focus of the investigation is laid on the leading edge part of the blade.The numerical model consists of all internal flow passages and cooling hole rows at the leading edge.Furthermore,the radial gap flow is also part of the model.The comparison with thermal pyrometer measurements shows that with respect to regions with high thermal load a qualitatively and quantitatively good agreement of the conjugate results and the measurements can be found.In particular,the region in the vicinity of the mid-span section is exposed to a higher thermal load,which requires further improvement of the cooling arrangement.Altogether the achieved results demonstrate that the conjugate calculation technique is applicable for reasonable prediction of three-dimensional thermal load of complex cooling configurations for blades. | Norbert Moritz Karsten Kusterer Dieter Bohn Takao Sugimoto Ryozo Tanaka Tomoki Taniguchi | 2013 | Propulsion and Power Research2013，2，1： | 3 |
| 8 | Characteristics of patients with dual infection by hepatitis B and C viruses显示文摘 | Jean-Pierre Zarski Benoit Bohn Anne Bastie Jean-Michel Pawlotsky Maryline Baud Frédérique Bost-Bezeaux Jeanne Tran van Nhieu Jean-Marie Seigneurin Catherine Buffet Daniel Dhumeaux | 1998 | Journal of Hepatology1998，，1： | 2 |
| 9 | The cost of wheeling and optimal wheeling rate 显示文摘 | CARAMANIS M C BOHN R E SCHWEPPE F C | 1989 | IEEE Trans on Power Systems1989，1，1： | 2 |
| 10 | Hybrid system-a promising way solving future energy problems显示文摘With the increasing demand for electricity,an efficiency improvement and thereby reduced CO2 emissions of the power plants are expected in order to reach the goals set in the Kyoto protocol.In comparison to conventional systems,the hybrid-systems with the use of synergetic effects offer the possibility to provide a substantial contribution to spare our natural resources and protect our environment.Combined Cycle Power Plants belongs innately hybrid system in the centralized energy market.They can provide large amounts of power and have a quick start-up time.The MGT/FC hybrid system is quite promising in the decentralized energy market.It is widely used in stand-alone applications.Furthermore,the combination of fossil and renewable power plant technologies contains a large synergy potential to increase the efficiency of processes for power plants.New materials,innovative cooling technology,new combustion concepts and optimized production methods are needed to make the potential of these new technologies accessible for a quantum leap in the efficiency.For this it needs considerable research work and good coordinated research projects between the state,industry,research laboratories and universities. | Dieter Bohn | 2007 | 航空动力学报2007，22，4： | 2 |
| 11 | Shock Wave Smearing by Passive Control显示文摘正常冲击波,在一个机翼上终止一个本地超声的区域,限制它的表演并且成为来源高加速冲动的噪音。使用被动控制瓦解被建议冲击波。这个方法获得的流动结构的细节数字地被学习。一个新边界条件被开发了,它的应用程序的结果在嘴流动对实验被验证。崩溃被证实了并且详细说明流动细节的分析的冲击波的方法被介绍。由渐渐的压缩的一个冲击波的替换完全改变高速度的来源它的减小的冲动的噪音和熊潜力。关键词接近音速的流动 - 冲击波边界层相互作用 - 被动控制 CLC 数字 O357. | Piotr DOERFFER Oskar SZULC Rainer BOHNING | 2006 | Journal of Thermal Science2006，15，1： | 2 |
| 12 | IL-18(IFN-γ-inducing factor) regulatesearly cytoking production in ,and promotes resolution of bacterial infection in mice显示文摘 | Bohn E Sing A Zumbihl R | 1998 | J Immunol1998，160，： | 1 |
| 13 | Aero Thermal Investigations of Mixing Flow Phenomena in Case of Radially Inclined Ejection Holes at the Leading Edge显示文摘 | Bohn D E Kusterer K A | 2000 | Transactions of the ASME2000，122，： | 1 |
| 14 | Characterization of cDNA encoding human placental anticoagulant protein (PP4): homology with the lipocortin family 显示文摘 | Grundmann U Abel J Bohn H | 1988 | Proc Natl Acad Sci1988，85，11： | 1 |
| 15 | NMDA, but not dopamine D(2), receptors in the rat nucleus accumbens are involved in guidance of instrumental behavior by stimuli predicting reward magnitude显示文摘 | Hauber W Bohn I Giertler C | 2000 | J Neurosci2000，20，16： | 1 |
| 16 | C-reactiveprotein predicts d eath in patients withpreviousprema-turemyocardialinfarction-A1 Oyearsfollow-upstudy显示文摘 | Retterstol L Eikvarb L Bohn M | 2002 | Atherosclerosis2002，160，： | 1 |
| 17 | Anterior versus posterior treatment of stable thoracolumbar burst fractures without neurologic deficit: a prospec-tire, randomized study 显示文摘 | Wood KB Bohn D Mehbod A | 2005 | Spinal Disord Tech2005，18，： | 1 |
| 18 | An analysis package comparing PID Anti-Windup strategies 显示文摘 | Bohn C Atherton D P | 1995 | IEEE System Magazine1995，15，2： | 1 |
| 19 | (1-3) 13-IGlucans as biological re- sponse:a review of structure functional activity relationships 显示文摘 | Bohn J A BeMiller J N | 1995 | Carbohydrate Polymers1995，28，： | 1 |
| 20 | Impact of resting heart rate on mortality, disability, cognitive decline in patients after ischaemic stroke显示文摘 | Bohn M Cotton D Foster L | 2012 | Eur Heart J2012，33，： | 1 |
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