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Effect of atmospheric turbulence on orbital angular momentum entangled state

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Communications in Theoretical Physics 2022年第2期74卷 36-43页

作者： Xiang Yan Peng-Fei Zhang cheng-yu fan Jing-Hui Zhang School of Physics and Electronic Information Engineering Hubei Engineering UniversityXiaogan432000China Key Laboratory of Atmospheric Composition and Optical Radiation Anhui Institute of Optics and Fine MechanicsChinese Academy of SciencesHefei 230031China

The entangled orbital angular momentum(OAM)photons propagating across a weakly turbulent atmosphere are ***,the paper uses the single-phase screen model based on the Kolmogorov theory of turbulence,and focuses on the influence of the backward scattering on OAM *** results indicate that backward scattering plays an important role in the analysis of OAM entanglement evolution in the turbulent *** cannot be negligible especially for higher-order OAM ***,when OAM mode is greater than 4,entangled photon pairs composed of higher OAM modes are not more robust in turbulence within the weak scintillation *** results will be useful in future investigations of OAM-based optical wave propagation through turbulent atmosphere.

关键词： turbulent atmosphere backward scattering orbital angular momentum

Proton beam therapy to bridge or downstage locally advanced hepatocellular carcinoma to living donor liver transplantation

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Hepatobiliary Surgery and Nutrition 2022年第1期11卷 103-111页

作者： Chao-Long Chen Aldwin D.Ong Jen-yu cheng Chee-Chien Yong Chih-Che Lin Chih-Yi Chen yu-fan cheng Liver Transplantation Center Department of SurgeryKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiungTaiwanChina Liver Transplantation Center Department of Radiation OncologyKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiungTaiwanChina Liver Transplantation Center Department of Diagnostic RadiologyKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiungTaiwanChina

Introduction Within the last decade,progress in transplant and surgical oncology has been *** liver oncology alone,there has been concurrent technological innovation across the different adjunct fields and tiers of oncology related to hepatocellular carcinoma(HCC),progressing in quite an unprecedented *** improvements in our capacity to diagnose and prognosticate HCC with increasing sensitivity,specificity,and predictability is being *** now better understand that staging,treatment and prognostication cannot be determined on a static basis of tumor burden(i.e.,tumor size and number)alone and a“one size fits all”*** individualized assessment is now mandatory in consideration of intra-and intertumoral heterogeneity and tumor biology in order to more precisely guide diagnostics and treatment options(1).

关键词： hepatocellular alone donor

Proton beam therapy for downstaging hepatocellular carcinoma with lobar portal vein tumor thrombosis to living donor liver transplantation

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Hepatobiliary Surgery and Nutrition 2023年第6期12卷 966-974页

作者： Chao-Long Chen Leona Bettina PDungca Chee-Chien Yong Itsuko Chih-Yi Chen yu-fan cheng Jen-yu cheng Yen-Yang Chen Liver Transplantation Center Department of SurgeryKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiung Liver Transplantation Center Department of Diagnostic RadiologyKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiung Liver Transplantation Center Department of Radiation OncologyKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiung Liver Transplantation Center Department of Hematology-OncologyKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiung

Introduction Liver transplantation(LT)is considered as the definitive standard treatment for hepatocellular carcinoma(HCC)with the advantage of addressing both malignancy and the underlying cirrhosis,thus,providing th... 详细信息

关键词： Proton beam therapy(PBT) hepatocellular carcinoma(HCC) portal vein tumor thrombosis(PVTT) living donor liver transplantation(LDLT) downstaging therapy

Performance Study of an FFH/BFSK Self-Normalizing Receiver with Multitone Jamming's Frequency Offsets

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Journal of Electronic Science and Technology 2010年第2期8卷 97-102页

作者： Chao Wei yu-fan cheng National Key Laboratory of Communications University of Eiectronic Science and Technology of China Chengdu 610054 China

This study investigates how frequency offsets of multitone jamming affect the fast frequencyhopped binary frequency shift keying （FFH/BFSK） self-normalizing （SNZ） receiver under additive white Gaussian noise （AWGN）. The average bit-error-rate （BER） expressions of the FFH/BFSK SNZ receiver and the average BER expressions of an FFH/BFSK spread-spectrum （SS） communication system with frequency offsets of multitone jamming for the sake of understanding the simulation results better. Simulation results show that BER performance of the FFH/BFSK SNZ receiver with diversity under the worst case multitone jamming （MTJ） and AWGN suffers from multitone jamming＇s frequency offsets when the jamming power is moderate, which is validated by several simulations with different frequency offsets configured in multitone jamming. Therefore, an FFH/BFSK SNZ receiver under multitone jamming can be combated with the help of frequency offsets of multitone jamming.

关键词： Index Terror. Combatting fast frequency hopping multitone jamming offsets of frequency self- normalizing receiver.

Laparoscopic segmental colectomy for colonic lymphangiomas: A definitive, minimally invasive surgical option

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World Journal of Gastroenterology 2014年第26期20卷 8745-8750页

作者： Chang-Hua Zhuo De-Bing Shi Min-Gang Ying yu-fan cheng yu-Wei Wang Wen-Ming Zhang San-Jun Cai Xin-Xiang Li Department of Oncology Shanghai Medical CollegeFudan University Department of Colorectal Surgery Fudan University Shanghai Cancer Center Department of Surgical Oncology Fujian Provincial Cancer HospitalTeaching Hospital of Fujian Medical University Department of Pathology Fudan University Shanghai Cancer Center Department of Endoscopy Fudan University Shanghai Cancer Center

Colonic lymphangioma is an unusual benign *** herein describe two cases.A 36-year-old woman was admitted with one year of intermittent abdominal pain;colonoscopy,abdominopelvic computed tomography and endoscopic ultrasonography(EUS)revealed enlarged cystic masses at the ascending *** another 40-year-old man,colonoscopy and EUS revealed an asymptomatic lobulated cystic mass with four small sessile polyps at the sigmoid *** patients underwent laparoscopic segmental *** masses were histologically confirmed as cystic lymphangiomas,and the patients were discharged without *** management of colonic lymphangioma depends on the individual situation;close surveillance or endoscopic therapy may be appropriate for asymptomatic lesions smaller than 2.5 cm in *** intervention can be considered for larger lesions or in patients who develop complication *** segmental colon resection may be recommended to excise relatively large submucosal lesions because it is a definitive,minimally invasive intervention with a fast postoperative recovery.

关键词： Cystic lymphangioma Colon neoplasm Laparoscopic surgery Colectomy Segmental resection

Left-sided gallbladder:Its clinical significance and imaging presentations

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World Journal of Gastroenterology 2007年第47期13卷 6404-6409页

作者： Sheng-Lung Hsu Tai-Yi Chen Tung-Liang Huang Cheuk-Kwan Sun Allan M Concejero Leo Leung-Chit Tsang yu-fan cheng Department of Diagnostic Radiology Chang Gung Memorial Hospital - Kaohsiung Medical Center Chang Gung University College of Medicine Kaohsiung Taiwan China Department of Surgery Chang Gung Memorial Hospital - Kaohsiung Medical Center Chang Gung University College of Medicine Kaohsiung Taiwan China

AIM: To assess the importance of preoperative diagnosis and presentation of left-sided gallbladder using ultrasound (US),CT and angiography. METHODS: Retrospective review of 1482 patients who underwent enhanced CT scanning was performed. Left-sided gallbladder was diagnosed if a right-sided ligamentum teres was present. The image presentations on US,CT and angiography were also reviewed. RESULTS: Left-sided gallbladder was diagnosed in nine patients. The associated abnormalities on CT imaging included portal vein anomalies,absence of umbilical portion of the portal vein in the left lobe of the liver,club-shaped portal vein in the right lobe of the liver,and difficulty in identifying segment Ⅳ. Angiography in six of nine patients demonstrated abnormal portal venous system (trifurcation type in four of six patients). The main hepatic arteries followed the portal veins in all six patients. The segment Ⅳ artery was identified in four of six patients using angiography,although segment Ⅳ was difficult to define on CT imaging. Hepatectomy was performed in three patients with concomitant liver tumor and the diagnosis of left-sided gallbladder was confirmed intraoperatively. CONCLUSION: Left-sided gallbladder is an important clinical entity in hepatectomy due to its associated portal venous and biliary anomalies. It should be considered in US,CT and angiography images that demonstrate no definite segment Ⅳ,absence of umbilical portion of the portal vein in the left lobe,and club-shaped right anterior portal vein.

关键词： Left-sided gallbladder Angiography Computed tomography Ultrasound

Macro-regenerative nodules in biliary atresia:CT/MRI findings and their pathological relations

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World Journal of Gastroenterology 2008年第28期14卷 4529-4534页

作者： Jiun-Lung Liang yu-fan cheng Allan M Concejero Tung-Liang Huang Tai-Yi Chen Leo Leung-Chit Tsang Hsin-You Ou Departments of Diagnostic Radiology Chang Gung Memorial HospitalKaohsiung Medical Center and Chang Gung University College of Medicine Kaohsiung 83305 Taiwan China Departments of Surgery Chang Gung Memorial Hospital-Kaohsiung Medical Center and Chang Gung University College of Medicine Kaohsiung 83305 Taiwan China

AIM: To describe the radiological findings of a macro-regenerative nodule (MRN) in the liver of pre-transplantation biliary atresia (BA) patients and to correlate it with histological findings. METHODS: Between August 1990 and November 2007, 144 BA patients underwent liver transplantation (LT) at our institution. The pre-transplantation computer tomograghy (CT) and magnetic resonance imaging (MRI) findings were reviewed and correlated with the post-transplantation pathological findings. RESULTS: Nine tumor lesions in 7 patients were diagnosed in explanted livers. The post-transplantation pathological findings showed that all the lesions were MRNs without malignant features. No small nodule was detected by either MRI or CT. Of the 8 detectable lesions, 6 (75%) were in the central part of the liver, 5 (63%) were larger than 5 cm, 5 (63%) had intra- tumor tubular structures, 3 (38%) showed enhancing fibrous septa, 3 (38%) had arterial enhancement in CT, one (13%) showed enhancement in MRI, and one (13%) had internal calcifications. CONCLUSION: Although varied in radiological appearance, MRN can be differentiated from hepatocellular carcinoma (HCC) in most of BA patients awaiting LT. The presence of an arterial-enhancingnodule does not imply that LT is withheld solely on the basis of presumed malignancy by imaging studies. Liver biopsy may be required in aid of diagnostic imaging to exclude malignancy.

关键词： Biliary atresia Macro-regenerative nodule Liver neoplasm Liver transplantation Computed tomography Magnetic resonance imaging

Staged ligation of large portosystemic collaterals in living donor liver transplantation using a small-for-size graft

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Hepatobiliary Surgery and Nutrition 2020年第4期9卷 555-557页

作者： Chao-Long Chen Chee-Chien Yong Jeffrey Samuel Co Chih-Yi Chen Aldwin Ong Chih-Che Lin yu-fan cheng Liver Transplantation Center Department of SurgeryKaohsiung Chang Gung Memorial HospitalKaohsiung Diagnostic Radiology Kaohsiung Chang Gung Memorial HospitalKaohsiung

The success of using a partial graft for liver transplantation depends highly on portal venous flow as it is the primary determinant of graft *** collaterals(PSCs)are not uncommon,with an incidence reported to be as h... 详细信息

关键词： collateral graft donor

Bilateral proficiency over time leads to reduced donor morbidity in living donor hepatectomy

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Hepatobiliary Surgery and Nutrition 2019年第5期8卷 459-469页

作者： Viola Huang Chao-Long Chen yu-Hung Lin Tsan-Shiun Lin Chih-Che Lin Shih-Ho Wang Chee-Chien Yong Chih-Yi Chen yu-fan cheng Liver Transplantation Center and Department of Surgery Kaohsiung Chang Gung Memorial HospitalKaohsiungTaiwan Department of General Surgery Dartmouth Hitchcock Medical CenterLebanonNew HampshireUSA Liver Transplantation Center and Department of Diagnostic Radiology Kaohsiung Chang Gung Memorial HospitalKaohsiungTaiwan

Background:Although left-lobe donation is considered safer,right-sided donor hepatectomy predominatesin adult living donor liver transplantation(LDLT).We hypothesized that bilateral proficiency with donorhepatectomy reduces overall donor ***:A retrospective review of 834 adult LDLT donors(221 left lobes)from January 2004 toDecember 2014 was performed,dividing cases into two eras based on left-graft *** within 6 months were investigated,focusing on graft side and surgical ***:The overall complication rate was 17.6%,and was higher in right-lobe *** Era 2,duringwhich left-lobe donation rates were three times higher,total complications decreased(14.7%vs.20.9%,P=0.02).A significant reduction in postoperative ascites accounted for the lower overall complication *** proportion of major biliary complications(BCs)was halved from 62.5%to 25.0%.Right-lobe donorcomplications also decreased significantly(15.8%vs.22.9%,P=0.032),demonstrating that it was not onlyincreased left-lobe donations leading to lowered complication rates,but also greater experience with donorhepatectomy in ***:Accumulating experience with bilateral donor hepatectomy leads to decreased donormorbidity and comparable outcomes for right and left lobes,further enhancing the goal of donor safety whilebalancing recipient needs.

关键词： Living donor liver transplantation(LDLT) donor safety biliary complications(BCs)