http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Light-Induced Absorption and Holographic Recording in Pr:LiNbO3
Van-Thai Pham,임기수,D. S. Hamilton,Minh-Tuan Trinh,이선균 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.2I
With ultraviolet illumination, we have found a broad UV-induced absorption in the blue and some involvement of Pr ions in Pr:LiNbO3. Transient and stable absorption induced by UV illumination was analyzed at 457, 514, and 633 nm and could be explained by hole trap centers and iron ions. We also studied the effects of UV illumination and boundary conditions during holographic recording in the visible. In ultraviolet-gated short-circuit holographic recording, we obtained a high sensitivity and a high diffraction efficiency.
Home ranges and activity patterns of Sunda pangolins Manis javanica (Pholidota: Manidae) in Vietnam
Russell J. Gray,Dung Van Le,Huyen Thi Thanh Nguyen,Long Nhat Cau,Tan Van Nguyen,Thong Van Pham,Daniel Willcox,Tiffany Chen,Thai Van Nguyen 국립중앙과학관 2023 Journal of Asia-Pacific Biodiversity Vol.16 No.3
This study provides an update on the movement ecology of the Sunda pangolin (Manis javanica) in threedistinct ecoregions of Vietnam. Using radio telemetry, we tracked 12 pangolins rescued from the illegalwildlife trade and translocated to protected areas. We found that the average home range of translocatedSunda pangolins was 1.58 km2 and did not vary significantly between sexes, mass, or habitat. However,there was a marked decrease in range size with decreasing sizes of suitable forest space and terrain, or alocalized abundance of resources in some locations. Pangolins were most active from 03:00 to 04:00. Thestudy highlights the need for further research to fully understand the ecology of this unique and enig matic species.
Apis cerana Beekeeping and Sacbrood Disease Management in Vietnam: Review
Pham Hong Thai,Nguyen Thi Huyen,Tran Van Toan,Chuleui Jung 한국양봉학회 2018 韓國養蜂學會誌 Vol.33 No.4
Beekeeping status of Apis cerana with emphasis of experiences overcoming sacbrood virus disease are presented. Social bee fauna are rich in Vietnam with 6 honeybee species (Apis laboriosa, Apis dorsata, Apis mellifera, Apis cerana, Apis andrenifomis, Apis florea); 8 stingless bee species (Trigona laeviceps, Trigona ventralis, Trigona pagdeni, Trigona gressitti, Trigona fuscobalteata, Trigona capenteri, Trigona scintillans Trigona iridipenis) and 2 bumble bee species (Bumbus haemorrhoidalis, B. breviceps). All of them are native except A. mellifera which was introduced in1887. These bees are slated for conservation by the Ministry of Agriculture & Rural Development. Honey and other bee products are mainly harvested from 3 species including A. cerana, A. mellifera and A. dorsata. The manageable species (A. cerana and A. mellifera) are increasing in number, reaching about 1,500,000 beehives. Vietnam is the second largest honey exporter in Asia, with a total of about 48,000 tons of honey exported to the international market in 2014. A. cerana plays an important role in poverty alleviation in mountainous and remote areas of Vietnam. Honeybee suffers from various diseases of Sacbrood virus disease (SBV), European foulbrood (EFB), Nosema, and parasitic mites of Tropilaelaps mercedes and Varroa destructor. Most of these diseases can be resolved with biocontrol methods. For the parasitic mites, Vietnamese beekeepers usually apply formic acid.
Empirical evaluations for predicting the damage of FRC wall subjected to close-in explosions
Duc-Kien Thai,Thai-Hoan Pham,Duy-Liem Nguyen,Tran Minh Tu,Phan Van Tien 국제구조공학회 2023 Steel and Composite Structures, An International J Vol.49 No.1
This paper presents a development of empirical evaluations, which can be used to evaluate the damage of fiberreinforced concrete composites (FRC) wall subjected to close-in blast loads. For this development, a combined application of numerical simulation and machine learning approaches are employed. First, finite element modeling of FRC wall under blast loading is developed and verified using experimental data. Numerical analyses are then carried out to investigate the dynamic behavior of the FRC wall under blast loading. In addition, a data set of 384 samples on the damage of FRC wall due to blast loads is then produced in order to develop machine learning models. Second, three robust machine learning models of Random Forest (RF), Support Vector Machine (SVM), and Extreme Gradient Boosting (XGBoost) are employed to propose empirical evaluations for predicting the damage of FRC wall. The proposed empirical evaluations are very useful for practical evaluation and design of FRC wall subjected to blast loads.
( Minh Hai Pham ),( Quan Anh Tuan Le ),( Hoang Bac Nguyen ),( Quang Hung Vu ),( Thai Ngoc Huy Tran ),( Hang Dang Khoa N Guyen ),( Thi Ngoc Sang Duong ),( Van Toan Tran ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: Laparoscopic pancreaticoduodenectomy (LPD) is considered as a safe and effective procedure in well - selected patients and appropriate surgical technique. Our aim is to evaluate suitability of using protocol for LPD in treatment of periampullary cancer at a single team. Methods: case series Results: Indication for LPD included 37 cases with resectable tumors which were classified basing on NCCN. All witness evaluation risk of complications with PREPARE score, ASA and evaluation risk of postoperative pancreatic fistula (POPF) with FRS classification. There were 2 open conversions because of vein resections, accounting for 5.4%. Standard lymphadenectomy was performed in all of 37 cases. In term of PREPARE score, major complications (Clavien - Dindo >= III) were 17.8%, 0% and 0% (5/28, 0/5 and 0/2 cases) in low risk, intermediate risk and high risk group, respectively. All of cases had ASA I or II. POPF happened 11.1% (1/9), 4.1% (1/24) and 50% (1/2) in low risk, intermediate risk and high risk group, respectively. Frozen section was needed for R0 margin. Retrieved lymph nodes was 8 - 18 with 12 lymph nodes in average. Conclusions: Indication for LPD with resectable tumors is acceptable. ASA I or II is a safe measure to select patient for LPD. FRS classification shows appropriation to evaluate risk of POPF.
An efficient Screen Content Classification for Desktop Delivery Protocol in Desktop as a Service
Xuan-Qui Pham(팜소안쿠이),Pham Van Nam(팜반남),Nguyen Dao Tan Tri(트리다우탄응우엔),Ngo Quang Thai(노쾅타이),Ngo Thien Thu(노티엔투),Aymen Abdullah Alsaffar(아이만 압둘라 알사파르),Eui-Nam Huh(허의남) 한국정보과학회 2016 한국정보과학회 학술발표논문집 Vol.2016 No.12