Technique to Prevent Metal Deposition on Optical Components in Space Diode Laser Welding for Space Applications
スポンサーリンク
概要
- 論文の詳細を見る
In future space developments, welding in space may be required for repairs to the International Space Station and for constructing lunar bases and space structures. This paper describes the results of applying the space diode laser (DL) welding process, which the authors proposed in 2002. To use the DL welding process in space, it is necessary to prevent metal deposition on optical devices. We investigated a technique for preventing metal deposition in which the nozzle is installed at optical devices and a shielding gas is ejected from the nozzle outlet. Metal deposition can be reduced by blowing inert gas from the nozzle. The shielding gas argon completely prevents metal deposition on optical devices when the argon pressure in the nozzle is over 19.9 Pa and argon is ejected from the nozzle outlet.
著者
-
Hiraoka Nobuaki
Department Of Radiology Osaka University Graduate School Of Medicine
-
Suita Yoshikazu
Department Of Electro-mechanical Systems Engineering Takamatsu National College Of Technology
-
Terajima Noboru
Department Of Electro-mechanical Systems Engineering Takamatsu National College Of Technology
-
Ohtani Masato
Department Of Forest Genetics Forestry And Forest Products Research Institute
-
Tanaka Kenji
Department Of Advanced Energy Engineering Science Interdisciplinary Graduate School Of Engineering S
-
SHOBAKO Shinichiro
Department of Electro-Mechanical Systems Engineering, Kagawa National College of Technology
関連論文
- 多階層統計的形状モデルにおける安定化項の有効性の検証(JAMITセッション)
- Electrocardiography-triggered high-resolution CT for reducing cardiac motion artifact : evaluation of the extent of ground-glass attenuation in patients with idiopathic pulmonary fibrosis
- Accurate Thickness Measurement of Two Adjacent Sheet Structures in CT Images(Advanced Image Technology)
- Butt Welding Joint of Aluminum Alloy by Space GHTA Welding Process in Vacuum
- ISSVA分類に基づく頭頸部血管奇形の診療の実際
- P-217 Thin-section CTデータを用いた肺区域分割ソフトの開発,区域気管支による精度評価(縮小手術,第49回日本肺癌学会総会号)
- P-381 肺腺癌の腫瘍径と予後に関するプロフィールカーブを用いた1次元定量解析(画像診断5,第49回日本肺癌学会総会号)
- 画像情報にもとづいた呼吸動態の AnalySimulation
- 確率アトラスおよび多階層統計的形状モデルを用いた3次元CT画像からの肝臓領域自動抽出 : 形状パラメータの最適化アリゴリズムの改善による計算時間の短縮(Poster1)
- 臓器間の隣接関係を考慮した統計的形状モデルを用いた3次元CT画像からの階層的複数臓器抽出(腹部CT)
- 血管分岐部の形状に基づくカテーテルガイドワイヤ最適形状の推定(セッション5(血管画像解析))
- 周辺構造を用いた条件付肝臓統計アトラスの構築法に関する基礎的検討 : 非剛体位置合わせに基づく手法と統計的手法の比較
- 3次元CT画像を用いた統計的腹腔形状モデルの構築
- 2. Multidetector-row CT(MDCT)
- 主腫瘍の存在診断が困難であった肉眼的門脈内腫瘍栓を伴う細小肝細胞癌の1例
- 周辺構造を用いた空間的正規化に基づく統計的肝臓アトラスの構築(ポスター1, 医用画像一般)
- 近傍濃淡情報を用いた分岐点解析による肝臓CT画像からの血管3次元木構造の抽出手法(ポスター1, 医用画像一般)
- 3次元CT画像を用いた門脈末梢部の大局位置情報に基づく肝区域の推定(画像処理・解析)
- 膵頭十二指腸切除術後に肝性脳症を発症した mesocaval shunt に対して塞栓術を施行した1例
- 塞栓物質--最近の進歩 (特集 最先端のIVR)
- 腫瘍外来の検査 MRI (今月の臨床 女性診療科外来プラクティス) -- (腫瘍外来)
- 原理,読影の基礎 (今月の臨床 婦人科の新しい画像診断法--PETを中心として) -- (ポジトロンエミッショントモグラフィ(PET))
- Evaluation of Coronary Artery Bypass Grafts Using Multidetector-row CT with Japanese Patients
- Multiscale vessel tracking and quantification from isotropic CT volume data(Joint Session 2)
- Voxel Dimensions Required for Micromorphologic Evaluation of Ground-glass Opacity on Lung High-resolution CT
- A case of hepatocellular carcinoma with multiple lung, spleen, and remnant liver metastasis successfully treated by combination chemotherapy with the novel oral DPD-inhibiting chemotherapeutic drug S-1 and interferon-α
- Applicability of Laser Phase Contrast Method for the Measurements of Electron Density Fluctuations in High-Temperature Plasmas
- Automated Determination of the Liver Boundary in CT Data Based on Anatomical Knowledge and Level Set Method
- A Knowledge Based Technique for Automatic Segmentation of the Hip Femoral Cartilage in CT Images
- Automated Segmentation of Acetabular Cartilage in MR images of the Hip(Joint Session 1)
- ICONE11-36152 NOBLE GASES RECOVERY IN SPENT NUCLEAR FUEL REPROCESSING CYCLE
- Adsorption of Noble Gases on H-Mordenite
- Dynamics of Adsorption of Kr and Xe on MS5A and Activated Charcoal
- Screening Test of Adsorbents for Recoverty of Krypton
- Removal of Carbon Dioxide in Reprocessing Spent Nuclear Fuel off Gas by Adsorption
- Adsorption Equilibria of Krypton, Xenon, Nitrogen and Their Mixtures on Molecular Sieve 5A and Activated Charcoal
- Evaluation of usefulness of color digital summation radiography for solitary pulmonary nodules on chest radiographs
- Evaluation of the usefulness of color digital summation radiography in temporally sequential digital radiographs : a phantom study
- Novel Display Technique for Reference Images for Visibility of Temporal Change on Radiographs : Color Digital Summation Radiography
- Image Quality of High-resolution CT with 16-channel Multidetector-row CT : Comparison between Helical Scan and Conventional Step-shoot Scan
- Can Acute Interstitial Pneumonia Be Differentiated from Bronchiolitis Obliterans Organizing Pneumonia by High-resolution CT?
- Scintigraphic and MR Perfusion Imaging in Preoperative Evaluation for Lung Volume Reduction Surgery:Pilot Study Results
- Acute and Subacute Non-infectious Lung Diseases:Usefulness of HRCT for Evaluation of Activity Especially in Follow-up
- Characteristics of Electron Density Fluctuations in Heliotron E Measured Using a Wide Beam Laser Phase Contrast Method
- Preoperative Serum Hyaluronic Acid Level as a Good Predictor of Posthepatectomy Complications
- Preoperative assessment of thymic veins on multidetector row CT : optimization of contrast material volume
- MR imaging of thymic epithelial tumors : correlation with World Health Organization classification
- Aortic Compliance in Patients with Aortic Regurgitation : Evaluation with Magnetic Resonance Imaging
- Effectiveness of real-time virtual sonography-guided radiofrequency ablation treatment for patients with hepatocellular carcinomas
- Angiographic evaluation of hepatic arterial damage after transarterial chemoembolization for hepatocellular carcinoma
- Magnetic resonance imaging-guided focused ultrasound ablation of uterine fibroids : early clinical experience
- Hypervascular hepatocellular carcinoma : Combined dynamic MDCT and SPIO-enhanced MRI versus combined CTHA and CTAP
- Whole-body MRI for Detecting Metastatic Bone Tumor : Diagnostic Value of Diffusion-weighted Images
- Isotropic Diffusion-weighted MR Imaging with Tetrahedral Gradients in the Upper Abdomen
- Solitary pulmonary metastases from renal cell carcinoma : comparison of high-resolution CT with pathological findings
- Evaluation of renal arteries in living renal donors : comparison between MDCT angiography and gadolinium-enhanced 3D MR angiography
- A Case of Hepatocellular Carcinoma Treated by MR-guided Focused Ultrasound Ablation with Respiratory Gating
- Air Microbubbles as MR Susceptibility Contrast Agent at 1.5 Tesla
- Principles and techniques of transcatheter embolotherapy for peripheral vascular lesions
- Noninvasive method using multidetector CT for calculating the relative blood supply ratio of duplicated renal arteries in renal donors
- Effect of Ipriflavone on Osteoblasts and Osteoclasts during Guided Bone Augmentation
- High Dose Rate Endovascular Brachytherapy in Aorto-iliac Lesion for the Prevention of Restenosis
- Welding Experiments of Aluminum Alloy by Space GHTA Welding at ISS Orbital Pressure
- Involvement of hepatoma-derived growth factor in the growth inhibition of hepatocellular carcinoma cells by vitamin K_2
- New chemotherapy for patients with advanced hepatocellular carcinoma : Pilot study of β-interferon and doxorubicin one-shot intra-arterial chemotherapy
- Vitamin K2 inhibits the proliferation of HepG2 cells by up-regulating the transcription of p21 gene
- Triple therapy of initial high-dose interferon with ribavirin and amantadine for patients with chronic hepatitis C
- Chemoprevention of spontaneous development of hepatocellular carcinomas in fatty liver Shionogi mice by a cyclooxygenase-2 inhibitor
- Prospective Respiratory-triggered Multidetector Row CT (MDCT) for Abdominal Examinations : Initial Experience with a Prototype
- Efficacy of Multi-slice Helical CT Venography for the Diagnosis of Deep Venous Thrombosis : Comparison with Venous Sonography
- MR Imaging of Mesenteric Hemangioma:A Case Report
- Surface Energy Budget at Amdo on the Tibetan Plateau using GAME/Tibet IOP98 Data
- Development of Laser Imaging Method for Measurements of Electron Density Fluctuations in Plasmas
- A Part of the Transmembrane Domain of pro-TNF Can Function as a Cleavable Signal Sequence That Generates a Biologically Active Secretory Form of TNF
- The respiratory motion analysis of the rib using 3-D images
- Successful treatment of multiple hepatocellular carcinoma with tumor thrombi in the major portal branches by intraarterial 5-fluorouracil perfusion chemotherapy combined with subcutaneous interferon-alpha and hepatectomy
- Vitamin K2 has growth inhibition effect against hepatocellular carcinoma cell lines but does not enhance anti-tumor effect of combination treatment of interferon-α and fluorouracil in vitro
- Association Between Recurrence of Hepatocellular Carcinoma and α-Fetoprotein Messenger RNA Levels in Peripheral Blood
- PP-2-402 OVEREXPRESSION OF AKT2 PI3K AS A NOVEL MARKER OF PROGNOSIS OF HCC
- Liver Abscess Formation After Microwave Coagulation Therapy Applied for Hepatic Metastases from Surgically Excised Bile Duct Cancer : Report of a Case
- PP395 Expressions of Id(Inhibitor of DNA binding/differentiation)1, 2, 3 in HCC
- Combined intra-arterial 5-fluorouracil and subcutaneous interferon-alpha therapy for highly advanced hepatocellular carcinoma
- Effect of dietary cobalt supplementation on the population growth of rotifer Brachionus rotundiformis
- Controlling Parameters of Residual Stresses and Deformations in Welded Thin Cylindrical Shells
- Full-size Digital Storage Phosphor Chest Radiography : Effect of 4K versus 2K Matrix Size on Observer Performance in Detection of Subtle Interstitial Abnormalities
- Overestimation Radio of Hepatic Lesion Size on Spiral CT Arterial Portography: An Indicator of Malignancy
- Technique to Prevent Metal Deposition on Optical Components in Space Diode Laser Welding for Space Applications
- Hemochromatosis with Mutation of the Ferroportin 1 (IREG1) Gene
- Stagnant Motions in Hamiltonian Systems : Part I. Classical Aspects : New Trends in Chaotic Dynamics of Hamiltonian Systems
- E213 PRESSURE RECOVERY IN EVACUATED ENCLOSURE AND HEAT TRANSFER DURING TRANSINT COOLING OF HIGH TEMPERATURE SURFACE(Evaporation-2 and others)
- Development of Space DL Welding Process for Construction and Repair of Space Structures in Space
- GHTA Spot-Welding Experiments of Aluminum and Titanium Plates under a Simulated Space Environment
- 2P-204 化学固定はラフト分子を固定できない : 細胞膜上での拡散運動の1分子追跡による研究(細胞生物学的課題(2),第46回日本生物物理学会年会)
- Development of a Novel Method for Feeding a Mixture of L-Lactic Acid and Acetic Acid in Fed-Batch Culture of Ralstonia eutropha for Poly-D-3-Hydroxybutyrate Production
- Optimization of L-Lactic Acid Feeding for the Production of Poly-K-3-Hydroxybutyric Acid by Alcaligenes eutrophus in Fed-Batch Culture
- Vitamin K2 downregulates the expression of fibroblast growth factor receptor 3 in human hepatocellular carcinoma cells
- Hepatoma-derived growth factor is induced in liver regeneration
- Acoustic emission from a sonoluminescing bubble
- Molecular database for classifying Shorea species (Dipterocarpaceae) and techniques for checking the legitimacy of timber and wood products
- Technique to Prevent Metal Deposition on Optical Components in Space Diode Laser Welding for Space Applications