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| 1 | Sedimentation acceleration of remanent iron oxide by magnetic flocculation显示文摘Sedimentation based processes are widely used in industry to separate particles from a liquid phase. Since the advent of the 'Nanoworld' the demand for effective separation technologies has rapidly risen, calling for the development of new separation concepts, one of which lies in hybrid separation using the superposition of a magnetic field for magnetic particles. Possible product portfolio of such separation consists of pigment production, nanomagnetics production for electronics and bio separation. A promising step in that direction is magnetic field enhanced cake filtration, which has by now progressed from batch to continuous operation. In sedimentation processes in a mass force field the settling behaviour of particles strongly depends on physico-chemical properties, concentration and size distribution of the particles. By adjusting the pH, the interparticle forces, in particular the electrostatic repulsion, can be manipulated. For remanent magnetic particles such as magnetite, pre-treatment in a magnetic field could lead to a change of interparticle interactions. By magnetizing the particles apart from van der Waals attraction and electrostatic repulsion, an additional potential is induced, the magnetic attraction, which could easily dominate the other potentials and result in agglomeration in the primary minimum. By sedimentation analysis, a wide spectrum of parameters like pH, magnetic field strength and concentration have been investigated. The results show a strong increase of sedimentation velocity by magnetic flocculation of the raw suspension. This leads to a rise in throughput due to the acceleration of sedimentation kinetics by imparting a non-chemical interaction to the physico-chemical properties in the feed stream of the separation apparatus. | Mathias Stolarski Christian Eichholz Benjamin Fuchs Hermann Nirschl | 2007 | China Particuology2007，5，1： | 12 |
| 2 | Shaped beam synthesis of arbitrary arrays via linear programming显示文摘 | Benjamin Fuchs | 2010 | IEEE antennas and wireless propagation letters2010，9，6： | 1 |
| 3 | Software improvement for evaluation of laryngopharyngeal pH testing(Restech)——a comparison between Data View 3 and 4显示文摘BACKGROUND When gastroesophageal reflux contents reach above the upper esophageal sphincter,patients may,in addition to typical reflux symptoms,present with atypical,extraesophageal symptoms related to laryngopharyngeal reflux(LPR).Surgical treatment of LPR has shown to lead to 70%symptom improvement,however no gold standard for the diagnosis of LPR exists.In 2007,the Restech Dx-pH was released as a valid method to measure acid exposure above the upper esophageal sphincter.Recently,a new software update was introduced for analysis of measured pH data and calculation of composite scores.The effect of the changes applied to the new software version have not yet been analyzed.AIM To compare results generated by Data View 3 to the most recently released Data View 4.METHODS All patients with gastroesophageal reflux disease symptoms were seen in a specialized surgical outpatient clinic for gastrointestinal function testing.Retrospective chart review was performed of all patients presenting with suspected gastroesophageal reflux disease and extraesophageal reflux symptoms,who underwent laryngopharyngeal pH monitoring using the Restech Dx-pH system(Respiratory Technology Corp.,Houston,TX,United States)and simultaneous esophageal pH monitoring.Data View 3 and Data View 4 were used to evaluate Restech studies obtained.Diary entries such as mealtimes,supine and upright periods,and symptoms were entered manually to ensure accuracy and precise conversion of data between both software versions.Paired t test was performed for statistical analysis of results.RESULTS A total of 174 patients(63.8%female)met inclusion criteria,all suffering from extraesophageal reflux symptoms as well as typical gastroesophageal reflux disease symptoms.Mean RYAN score upright was 48.77 in Data View 3 compared to 22.17 in Data View 4,showing a significant difference(~aP=0.0001).Similar results were shown for supine period(mean RYAN Score Data View 35.29 vs 1.42 in Data View 4,~cP=0.0001).For upright periods 80 patients showed a decrease of value of the RYAN score with a mean of-58.9(mean 51.1%decrease).For supine position 25 patients showed a decrease of value of the RYAN score with a mean of-15.13[range(-153.44)–(-0.01)],which equals a mean decrease of value of 44.5%.Ten patients showed no oropharyngeal acid exposure in Data View 3,but mild/moderate(n=7)or severe(n=3)acid exposure in Data View 4.Correlation with positive esophageal pH measurement was improved in all 10 patients.CONCLUSION Results of both software versions cannot be compared to each other.However,our data suggests that Data View 4 may be an improvement of the Restech pH measurement in the evaluation of LPR. | Dolores Thea Müller Elena Schulte Benjamin Babic Laura Knepper Claudia Fuchs Wolfgang Schroder Christiane J Bruns Jessica M Leers Hans Friedrich Fuchs | 2020 | World Journal of Gastrointestinal Surgery2020，12，5： | 1 |
| 4 | EAES recommendations for the management of gastroesophageal reflux disease显示文摘 | Karl Hermann Fuchs Benjamin Babic Wolfram Breithaupt Bernard Dallemagne Abe Fingerhut Edgar Furnee Frank Granderath Peter Horvath Peter Kardos Rudolph Pointner Edoardo Savarino Maud Herwaarden-Lindeboom Giovanni Zaninotto | 2014 | Surgical Endoscopy2014，，： | 1 |
| 5 | Neurologic prognostication and bispectral index monitoring after resuscitation from cardiac arrest显示文摘 | Marion Leary David A. Fried David F. Gaieski Raina M. Merchant Barry D. Fuchs Daniel M. Kolansky Dana P. Edelson Benjamin S. Abella | 2010 | Resuscitation2010，，9： | 1 |
| 6 | Do patients with gastroesophageal reflux disease and somatoform tendencies benefit from antireflux surgery?显示文摘BACKGROUND The clinical presentation of gastroesophageal reflux disease(GERD) shows a large symptom variation also in different intensities among patients. As several studies have shown, there is a large overlap in the symptomatic spectrum between proven GERD and other disorders such as dyspepsia, functional heartburn and/or somatoform disorders.AIM To prospectively evaluate the GERD patients with and without somatoform disorders before and after laparoscopic antireflux surgery.METHODS In a tertiary referral center for foregut surgery over a period of 3 years patients with GERD, qualifying for the indication of laparoscopic antireflux surgery, were investigated prospectively regarding their symptomatic spectrum in order to identify GERD and associated somatoform disorders. Assessment of symptoms was performed by an instrument for the evaluation of somatoform disorders[Somatoform Symptom Index(SSI) > 17]. Quality of life was evaluated by Gastrointestinal Quality of Life Index(GIQLI).RESULTS In 123 patients an indication for laparoscopic antireflux surgery was established and in 43 patients further medical therapy was suggested. The portion of somatoform tendencies in the total patient population was 20.48%(34 patients).Patients with a positive SSI had a preoperative GIQLI of 77(32-111). Patients with a normal SSI had a GIQLI of 105(29-140)(P < 0.0001). In patients with GERD the quality of life could be normalized from preoperative reduced values of GIQLI102(47-140) to postoperative values of 117(44-144). In patients with GERD and somatoform disorders, the GIQLI was improved from preoperative GIQLI 75(47-111) to postoperative 95(44-122)(P < 0.0043).CONCLUSION Patients with GERD and associated somatoform disorders have significantly worse levels of quality of life. The latter patients can also benefit from laparoscopic fundoplication, however they will not reach a normal level. | Hans Friedrich Fuchs Benjamin Babic Karl-Hermann Fuchs Wolfram Breithaupt Gabor Varga Frauke Musial | 2019 | World Journal of Gastroenterology2019，25，3： | 1 |
| 7 | Gastrointestinal function testing model using a new laryngopharyngeal pH probe(Restech)in patients after Ivor-Lewis esophagectomy显示文摘BACKGROUND There is no established correlation between 24-h esophageal pH-metry(Eso-pH)and the new laryngopharyngeal pH-monitoring system(Restech)as only small case series exist.Eso-pH was not designed to detect laryngopharyngeal reflux(LPR)and Restech may detect LPR better.We have previously published a dataset using the two techniques in a large patient collective with gastroesophageal reflux disease.Anatomically,patients after esophagectomy were reported to represent an ideal human reflux model as no reflux barrier exists.AIM To use a human reflux model to examine our previously published correlation in these patients.METHODS Patients after Ivor Lewis esophagectomy underwent our routine follow-up program with surveillance endoscopies,computed tomography scans and further exams following surgery.Only patients with a complete check-up program and reflux symptoms were offered inclusion into this prospective study and evaluated using Restech and simultaneous Eso-pH.Subsequently,the relationship between the two techniques was evaluated RESULTS A total of 43 patients from May 2016-November 2018 were included.All patients presented with mainly typical reflux symptoms such as heartburn(74%),regurgitation(84%),chest pain(58%),and dysphagia(47%).Extraesophageal symptoms such as cough,hoarseness,asthma symptoms,and globus sensation were also present.Esophageal 24-hour pH-metry was abnormal in 88%of patients with a mean DeMeester Score of 229.45[range 26.4-319.5].Restech evaluation was abnormal in 61%of cases in this highly selective patient cohort.All patients with abnormal supine LPR were also abnormal for supine esophageal reflux measured by conventional Eso-pH.CONCLUSION Patients following esophagectomy and reconstruction with gastric interposition can ideally serve as a human reflux model.Interestingly,laryngopharyngeal reflux phases occur mainly in the upright position.In this human volume-reflux model,results of simultaneous esophageal and laryngopharyngeal(Restech)pHmetry showed 100%correlation as being explicable by one of our reflux scenarios. | Benjamin Babic Dolores T Müller Florian Gebauer Lars Mortimer Schiffmann Rabi R Datta WolfgangSchröder Christiane J Bruns Jessica M Leers Hans F Fuchs | 2021 | World Journal of Gastrointestinal Oncology2021，13，6： | 0 |
| 8 | Characterization of the stability and dynamics of a laser-produced plasma expanding across a strong magnetic field显示文摘Magnetized laser-produced plasmas are central to many studies in laboratory astrophysics,in inertial confinement fusion,and in industrial applications.Here,we present the results of large-scale three-dimensional magnetohydrodynamic simulations of the dynamics of a laser-produced plasma expanding into a transverse magnetic field with a strength of tens of teslas.The simulations show the plasma being confined by the strong magnetic field into a slender slab structured by the magnetized Rayleigh–Taylor instability that develops at the plasma–vacuum interface.We find that when the initial velocity of the plume is perturbed,the slab can develop kink-like motions that disrupt its propagation. | Weipeng Yao Julien Capitaine Benjamin Khiar Tommaso Vinci Konstantin Burdonov Jérôme Béard Julien Fuchs Andrea Ciardi | 2022 | Matter and Radiation at Extremes2022，7，2： | 0 |
| 9 | 5G mobile communication applications for surgery:An overview of the latest literature显示文摘Fifth-generation wireless network,5G,is expected to bring surgery to a next level.Remote surgery and telementoring could be enabled and be brought into routine medical care due to 5G characteristics,such as extreme high bandwidth,ultrashort latency,multiconnectivity,high mobility,high availability,and high reliability.This work explores the benefits,applications and demands of 5G for surgery.Therefore,the development of previous surgical procedures from using older networks to 5G is outlined.The current state of 5G in surgical research studies is discussed,as well as future aspects and requirements of 5G in surgery are presented. | Leandra Börner Valdez Rabi R Datta Benjamin Babic Dolores T Müller Christiane J Bruns Hans F Fuchs | 2021 | Artificial Intelligence in Gastrointestinal Endoscopy2021，2，1： | 0 |
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