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        Adsorption resin/polyethersulfone membrane used for plasma separation and middle molecular toxins adsorption

        Xiaoyang Hou,Lilan Huang,Han Zhang,Qingping Xin,Hong Li,Hui Ye,Yuzhong Zhang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-

        Accumulation of endogenous and exogenous toxins in patients with chronic kidney disease increases thekidney burden. The newly developed plasma separation adsorption membranes provide a new model forthe removal of middle molecular toxins. In this study, the adsorption resin LX-1000H is physically pulverizedand blended into polyethersulfone matrixes to prepare adsorption resin/polyethersulfone (AR/PES) membranes by nonsolvent-induced phase separation for plasma separation and middle moleculartoxins absorption. The results show that the static adsorption capacity of AR/PES membrane for lysozyme(a typical mimic of middle molecular toxins) is up to 108.90 mg/g, which is 4 times that of AR. The maximumdynamic adsorption capacity reaches 102.80 mg/g, which is 93.4% of static adsorption. The adsorptionprocess is more consistent with the Langmuir model and the quasi-first-order kinetic model. Thepermeability of bovine serum albumin in simulated blood surpasses 90% and the cattle blood separatedby AR/PES membrane is colorless and transparent. The AR/PES membrane surface presents electronegativeat pH 7.4 and the water wettability is enhanced with the doping amount. No hemolysis and negligibleleakage indicated favorable hemocompatibility. This paper is devoted to providing a strategy forplasma separation and adsorption membranes.

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        Bandwidth Scheduling for Big Data Transfer with Two Variable Node-Disjoint Paths

        Aiqin Hou,Chase Qishi Wu,Liudong Zuo,Xiaoyang Zhang,Tao Wang,Dingyi Fang 한국통신학회 2020 Journal of communications and networks Vol.22 No.2

        Many large-scale applications in broad science, engineering,and business domains are generating big data, which must betransferred to remote sites for various storage and analysis purposes. Bandwidth reservation services that discover feasible routingoptions over dedicated paths in high-performance networkshave proved to be effective for such big data transfer. In thispaper, we formulate a generic problem of bandwidth schedulingwith two variable node-disjoint paths (BS-2VNDP) by exploringthe flexibility and capacity of multiple data transfer paths. We furtherconsider two variable paths of either fixed or variable bandwidthwith negligible or non-negligible path switching delay, referredto as 2VPFB-0/1 and 2VPVB-0/1, respectively.We prove thatall of these four scheduling problems are NP-complete, and thenpropose a heuristic algorithm for each. For performance comparison,we also design several other heuristic algorithms based on agreedy strategy. These scheduling algorithms are implemented andtested in both simulated and real-life networks, and extensive resultsshow that the proposed heuristic algorithms significantly outperformother algorithms in comparison.

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