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Hybrid Optimization Algorithm Based on Wolf pack Search and Local Search for Solving Traveling Salesman Problem

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Journal of Shanghai Jiaotong university(Science) 2019年第1期24卷 41-47页

作者： DONG Ruyi WANG Shengsheng WANG Guangyao WANG Xinying College of Computer Science and Technology Jilin University Jilin Vocational College of Industry and Technology College of Computer Science and Engineering Changchun University of Technology

Traveling salesman problem(TSP) is one of the typical NP-hard problems, and it has been used in many engineering applications. However, the previous swarm intelligence(SI) based algorithms for TSP cannot coordinate with the exploration and exploitation abilities and are easily trapped into local optimum. In order to deal with this situation, a new hybrid optimization algorithm based on wolf pack search and local search(WPS-LS)is proposed for TSP. The new method firstly simulates the predatory process of wolf pack from the broad field to a specific place so that it allows for a search through all possible solution spaces and prevents wolf individuals from getting trapped into local optimum. Then, local search operation is used in the algorithm to improve the speed of solving and the accuracy of solution. The test of benchmarks selected from TSPLIB shows that the results obtained by this algorithm are better and closer to the theoretical optimal values with better robustness than those obtained by other methods.

关键词： traveling salesman problem(TSP) swarm intelligence(SI) wolf pack search(WPS) combinatorial optimization

Rectal perforation by inadvertent ingestion of a blister pack: A case report and review of literature

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World Journal of Clinical Cases 2018年第10期6卷 384-392页

作者： Francesco Fleres Antonio Ieni Edoardo Saladino Giuseppe Speciale Michele Aspromonte Antonio Cannaò Antonio Macrì Department of Human Pathology of the Adult and Evolutive Age "Gaetano Barresi" Section of General Surgery University of Messina Department of Human Pathology of the Adult and Evolutive Age "Gaetano Barresi" Section of Anatomic Pathology University of Messina General and Oncologic Surgery Unit Clinica Cappellani-GIOMI Messina University Medical School Hospital Peritoneal Surface Malignancy and Soft Tissue Sarcoma Program Messina University Medical School Hospital

The accidental ingestion of a foreign body(FB) is a relatively common condition. In the present study, we report a peculiar case of rectal perforation, the first to our knowledge, caused by the inadvertent ingestion of a blister pill pack. The aim of this report is to illustrate the difficulties of the case from a diagnostic and therapeutic viewpoint as well as its unusual presentation. A 75-year-old woman, mentally impaired, arrived at our emergency department in critical condition. The computed tomography scan revealed a substantial abdominopelvic peritoneal effusion and free perigastric air. The patient was therefore submitted to an urgent exploratory laparotomy; a 2-cm long, full-thickness lesion was identified in the anterior distal part of the intraperitoneal rectum. Hence, we performed a Hartmann's procedure. Because of her critical condition, the patient was eventually transferred to the Intensive Care Unit, where she died after 10 d, showing no surgical complication. The ingestion of FBs is usually treated with observation or endoscopic removal. Less than 1% of FBs are likely to cause an intestinal perforation. The intestinal perforation resulting from the unintentional ingestion of an FB is often a difficult challenge when it comes to treatment, due to its late diagnosis and the patients' deteriorated clinical condition.

关键词： Foreign body Acute abdomen syndrome Ingestion Rectal perforation Blister pill pack

Cut endotracheal tube for endoscopic removal of an ingested push-through pack

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World Journal of Gastrointestinal Endoscopy 2016年第13期8卷 472-476页

作者： Yuki Tateno Ryoji Suzuki Miyake Central Clinic Tokyo 100-1101Japan

A 52-year-old female presented to our clinic after accidentallyingesting a push-through pack(PTP). After determining that the PTP was present in the stomach, we successfully and safely removed it endoscopically by using a handmade endoscopic hood fashioned from a cut endotracheal tube. Foreign body ingestion is a common clinical problem, and most ingested foreign bodies pass spontaneously. However, the ingestion of sharp objects, such as PTPs, increases the risk of complications, and urgent endoscopy is recommended to remove such objects. Previous studies have reported the use of other devices, both commercial and handmade, for the safe endoscopic removal of foreign bodies. The novel design of our handmade hood for the removal of the PTP, which was fashioned from a cut endotracheal tube, was beneficial in terms of maintaining a wide visual field, patient safety and tolerance, and easy preparation compared to previously reported commercial and handmade devices. It may be a viable and safe device for the retrieval of PTPs and other sharp foreign bodies.

关键词： Foreign body ingestion Endoscopic removal Push-through pack Sharp object Handmade

Research on Fuzzy PID Charging Control of Battery pack

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World Journal of Engineering and Technology 2017年第3期5卷 421-427页

作者： Xiaoyan Xu College of Applied Technology University of Science and Technology Liaoning Anshan China

Battery groups are widely used in production and life. Optimal charging can not only shorten the charge time, but also improve the performance and life of the battery pack. A constant current or constant voltage charging method is commonly used. This type of method cannot adjust the charge capacity in time according to the change of charging capacity of storage battery, and the charge performance is not high. This paper designs a fuzzy PID controller. In the case of variable load and interference, the battery group can still be charged by the optimal charging current. Through the simulation results, the fuzzy PID controller works well and verifies the feasibility of the charging controller.

关键词： Battery pack Charge Management Fuzzy PID Control

An Improved Binary Wolf pack Algorithm Based on Adaptive Step Length and Improved Update Strategy for 0-1 Knapsack Problems

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国际计算机前沿大会会议论文集 2017年第2期 105-106页

作者： Liting Guo Sanyang Liu School of Mathematics and Statistics Xidian UniversityXi’an 710126 Shaanxi China

Binary wolf pack algorithm (BWPA) is a kind of intelligence algorithm which can solve combination optimization problems in discrete *** on BWPA, an improved binary wolf pack algorithm (AIBWPA) can be proposed by adopting adaptive step length and improved update strategy of wolf pack. AIBWPA is applied to 10 classic 0-1 knapsack problems and compared with BWPA, DPSO, which proves that AIBWPA has higher optimization accuracy and better computational robustness. AIBWPA makes the parameters simple, protects the population diversity and enhances the global convergence.

关键词： Binary wolf pack algorithm 0-1 knapsack problem Adaptive step length Update strategy

Windows XP Service pack 2

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Windows & Net Magazine（国际中文版） 2004年第04M期 25-26页

作者： PaulThurrott 吴幼安不详《Windows&.NETMagazine》资深编辑

A320型飞机pack工作原理及超温故障分析

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航空维修与工程 2004年第1期 26-27页

作者：高松东航江苏公司维修工程部

阐述了A320飞机空调组件的工作原理,并对其超温故障进行了分析。

关键词： A320型飞机 pack 工作原理超温现象故障分析空调组件

基于Cape pack的军用物资单元包装优化研究

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包装工程 2009年第10期30卷 64-67页

作者：曹婷朱霞周晓敏严乔乔后勤工程学院重庆400012

探讨了现代后勤对军用物资单元包装的要求,介绍了Cape pack包装决策支持软件的主要功能,提出了基于该软件对军用物资单元包装优化的设计方案,最后通过案例演示了优化设计过程并对其结果进行分析,为军用物资单元包装优化提出了新的思路。

关键词：军用物资单元包装 Cape pack 包装优化

包装争奇斗艳，创新如虎添翼——Sino—pack2017羊城再掀智能热潮

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包装前沿 2017年第2期 1-8页

作者：范军红沈晓芸

3月，花城广州已繁花似锦，春意盎然。一年一度的国际包装大展再次在羊城隆重开展。Sino—pack 2017第二十四届中国国际包装工业展览会、packINN02017中国（广州）国际包装制品展览会、2017华南国际印刷展、2017中国国际标签展四展同期... 详细信息

3月，花城广州已繁花似锦，春意盎然。一年一度的国际包装大展再次在羊城隆重开展。Sino—pack 2017第二十四届中国国际包装工业展览会、packINN02017中国（广州）国际包装制品展览会、2017华南国际印刷展、2017中国国际标签展四展同期于3月1日～3日在广州·中国进出口商品交易会展馆B区隆重召开。

关键词：包装制品华南国际印刷展工业展览会智能创新羊商品交易会 pack