检索结果-南通市图书馆

Neutron transmission imaging with a portable D-T neutron generator

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Radiation Detection Technology and Methods 2022年第2期6卷 234-243页

作者： Phillip Kerr Nerine Cherepy Jennifer Church Gary Guethlein Jim Hall Colby McNamee Sean o'Neal Kyle Champley Andy Townsend mayuki Sasagawa Anthony Hardy Saphon Hok Lawrence Livermore National Laboratory LivermoreCA 94550USA

Purpose A portable fast-neutron imaging system is being developed to provide complementary information to field X-ray *** include inspection of vehicles and infrastructure for corrosion,measurement of material levels in containers,and inspection of munitions and suspicious *** fast-neuron imaging generally provides lower imaging resolution compared to X-rays,fast-neutron interaction cross-sections have a weak dependence on material *** enables imaging of low-Z materials inside high-Z ***,we discuss the limitations and current improvements in fast-neuron *** Limitations in portable fast-neutron imaging systems include low D-T neutron generator output,low light pro-duction in ZnS(Cu)imaging scintillators,low resolution due to scintillator thickness and D-T spot size,and digital-panel darknoise that varies in time and position and that can be 100×larger than the neutron *** have made improvements in these areas through development of a segmented high light yield scintillator,panel noise mitigation techniques,and testing of new high-output,small spot size D-T neutron *** The segmented high light yield fast-neutron scintillator demonstrated 5×increase in light compared to ZnS(Cu).An additional 2×improvement in signal-to-noise was demonstrated with panel-noise mitigation *** MCNP calculations also show good agreement with neutron imaging results Conclusions We have demonstrated improvements in fast-neutron imaging through development of a segmented high light yield neutron scintillator,mitigation of digital panel noise,and preliminary testing with new high-output,small spot size D-T neutron *** have also demonstrated good results modeling fast-neutron images and scatter effects using MCNP.

关键词： Fast-neutron radiography Portable neutron imaging Neutron scintillators Monte Carlo simulation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

以故乡之名——运天《BASARA》

少年人生 2003年第13期 61-63页

作者： mayuki

许久之前心血来潮写过一套《BASARA》人物的塔罗配置,同学因为喜欢的扬羽没有被设置在喜欢的“倒吊者”牌面上而牢骚了好半天。终于安静下来之后盯着“倒吊者”牌后的名字思索了半晌才咬牙切齿地问道这个运天究竟是谁我怎么不知道? 沉... 详细信息

许久之前心血来潮写过一套《BASARA》人物的塔罗配置,同学因为喜欢的扬羽没有被设置在喜欢的“倒吊者”牌面上而牢骚了好半天。终于安静下来之后盯着“倒吊者”牌后的名字思索了半晌才咬牙切齿地问道这个运天究竟是谁我怎么不知道? 沉下眉眼笑了笑,不意外有人已忘记了琉球小岛上,那个不算俊美不算温柔不算明亮的金发男子。

关键词： BASARA

A study on sleep architecture in patients with chronic respiratory failure under long-term oxygen therapy—Focused on the influence of ventilatory failure (high CO<sub>2</sub>) elements on the patient’s sleep architecture

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Health 2013年第8期5卷 14-20页

作者： Tsuguo Nishijima Keisuke Hosokawa Fumitaka Mito Tetsuya kizawa Susumu Takahashi Hiroshi Kagami Akira Suwabe Shigeru Sakurai Department of Laboratory Medicine Iwate Medical University School of Medicine Morioka Japan Department of Respirology Hachinohe Red Cross Hospital Hachinohe Japan Division of Behavioral Sleep Medicine Iwate Medical University School of Medicine Morioka Japan

Sleep disturbance related symptoms are common in patients with long-term oxygen therapy (LTOT). Essentially, there were only few previous reports about the sleep architecture in patients with respiratory disease, such as chronic obstructive pulmonary disease (COPD). This study aims to clarify the objective sleep state and the elements that affect sleep architecture in Chronic Respiratory Failure (CRF) patients with focus on clinical cases of chronic hypercapnia. 13 subjects with chronic respiratory failure were enrolled in the study. All the subjects were pre-evaluated by pulmonary function test and Arterial blood gas analysis (ABG) including exercise testing. Polysomnography (PSG) test was performed in each subject with supplemental oxygen. The estimated base line PaCO2 value that reflects overall PaCO2 including sleep period was calculated using equation of PaCO2[2.4×(HCOˉ3)-22]from obtained ABG value just before PSG test. 6 subjects were classified as hypercapnic group (base line PaCO2 ≥ 45 mmHg) and 7 subjects were non-hypercapnic group (base line PaCO2 < 45 mmHg). Latency persistent sleep of PSG data was significant higher in patients with hypercapnic than non-hypercapnic (p < 0.01). Periodic Limb Movement was seen in 23.6% of the subjects, however there was no contribution for arousals. Other PSG data include mean SpO2 were no significant difference. This study suggests that patients with estimated hypercapnia had more disturbed sleep architecture especially significant loss of sleep latency than non-hypercapnic patient with chronic respiratory failure under LTOT. Nocturnal PaCO2 level or ventilatory function may contribute to sleep disturbance in patients with estimated hypercapnia during LTOT.

关键词： Chronic Respiratory Failure Long-Term Oxygen Therapy Sleep Architecture Periodic Leg Movement Disorder

Significant Association of Nightly Nasal Continuous Positive Airway Pressure Using Time with Weight Change in Japanese Patients with Obstructive Sleep Apnea-Hypopnea Syndrome

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Health 2014年第17期6卷 2295-2302页

作者： Tsuguo Nishijima Sayaka Ishitoya Tomomi Mikasa Tetsuya kizawa Keisuke Hosokawa Susumu Takahashi Hiroshi Kagami Akira Suwabe Shigeru Sakurai Division of Behavioral Sleep Medicine School of Medicine Iwate Medical University Morioka Japan Department of Respirology Hachinohe Red Cross Hospital Aomori Japan Department of Laboratory Medicine School of Medicine Iwate Medical University Morioka Japan

Background: Obstructive sleep apnea syndrome (OSAS) is one of the representative sleep disorders believed to be associated with metabolic syndrome. Nasal continuous positive airway pressure (nCPAP) ventilation is the first choice therapy for OSAS, which has been reported to cause an improvement in body fat mass, hepatocellular damage and hypertension. Study Objectives: We evaluated whether the changes in the body weight observed in patients with OSAS may have potential associations with the sleep time during which the patients are under nCPAP. Method: A total of 194 patients (148 obese and 46 non-obese) in whom nCPAP use was present for more than 70% of the nights were enrolled in this study. Using the electronic records of the night use time for CPAP devices, we examined whether the habitual sleep time during nCPAP is associated with changes in body weight. Results: In the non-obese OSAS group, the patients with night time use of nCPAP devices for 6 to 7 hours showed the greatest and the most sustained decrease in body weight. In the obese patients with OSAS, on the other hand, a U-shaped relationship has been demonstrated between a percent weight gain over 9 years and a minimal weight gain in patients with habitual sleep for 5 to 6 hours. Conclusions: These results suggest that changes in body weight in patients with OSAS are associated with habitual sleep time.

关键词： Bodyweight Obesity CPAP OSAS Sleep Time during CPAP

Examination of the Effect of Rehabili-Mouse, a Desktop Rehabilitation Robot for Upper Limb Paresis after Stroke

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Orthopedics 2021年第12期11卷 371-382页

作者： Rena Wakabayashi Kimio Saito Toshiki Matsunaga Satoaki Chida Kai Kagami Takehiro Iwami Satoru kizawa Yuki Terata Masumi Ogasawara Yoichi Shimada Naohisa Miyakoshi Department of Orthopedic Surgery Akita University Graduate School of Medicine Akita Japan Department of Rehabilitation Medicine Akita University Hospital Akita Japan Department of Mechanical Engineering Akita University Akita Japan National Institute of Technology Akita College Akita Japan Faculty of Systems Science and Technology Akita Prefectural University Akita Japan Oyu Rehabilitation Hot-Spring Hospital Kazuno Japan Akita Prefectural Center on Development and Disability Akita Japan

Background: Active rehabilitation of the paralyzed limb is necessary for functional recovery from upper limb paralysis after stroke. In particular, the amount of training is very important, and robot rehabilitation is useful. However, most conventional robots are expensive, large, and stationary. We have developed Rehabili-Mouse, a new tabletop rehabilitation robot that is compact and portable. The purpose of this study was to conduct paralyzed upper limb training for a patient after stroke using Rehabili-Mouse and to examine its effect. Case: The patient was a 44-year-old man who had left-sided paresis after a right cerebral infarction, 3 months after onset. The training was carried out between February 2021 and March 2021 at Oyu Rehabilitation Hot

关键词： Robotic Rehabilitation Hemiplegia Upper Limb Function

大量营养元素对甘蓝结球的作用——Ⅲ氮素和光照对叶球发育的影响

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

贵州农业科学 1982年第6期 56-58页

作者： Tetsup Hara ,Tatsuya kizawa ,yoji Sonoda ,邓乃朋贵州省农科院

在大量营养元素(N,P,K,Ca,Mg,S)中,甘蓝植株对氮素需要最多,以用于甘蓝结球。在任何不同生长阶段吸收氮素经常有助于叶球形成。而磷,镁及硫在较晚生长阶段吸收,对结球几乎是无用的。氮适量供给外叶发展阶段的甘蓝,主要输入外叶,而正常... 详细信息

在大量营养元素(N,P,K,Ca,Mg,S)中,甘蓝植株对氮素需要最多,以用于甘蓝结球。在任何不同生长阶段吸收氮素经常有助于叶球形成。而磷,镁及硫在较晚生长阶段吸收,对结球几乎是无用的。氮适量供给外叶发展阶段的甘蓝,主要输入外叶,而正常的外叶发育为光合作用的器官。正常的外叶能产生丰富的光合产物并在叶球发育阶段输送到内层球叶。然而,当没有或仅有极少的氮供给植株,则无叶球发育。这就是说,甘蓝植株吸收

关键词：叶球产量光合产物发育阶段光照强度光照度甘蓝甘蓝类蔬菜结球氮素