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The tritium concentration in moderator heavy water of CANDU6 nuclear power plant increases with the operation of the reactor. The leakage of tritium containing heavy water to the reactor building and the environment in gaseous or liquid state will cause radiation dose to the operators and environmental pollution. How to effectively remove tritium from moderator heavy water has been widely concerned in the world. In this paper, heavy water tritium removal technologies are investigated, and the existing tritium removal technologies are systematically compared and analyzed. The advantages, disadvantages and economy of each technology are given.

Objective.To investigate the efficacy of lateral recumbent sling posture in thoracoscopic lobec- tomy. Methods.We consecutively collected 100 patients who underwent thoracoscopic lobectomy in our hospital from January 2019 to 2021, and were divided into 50 cases for both observation group and control group, respec- tively, according to the random number table method. The control group took the traditional lateral decubitus posi- tion, and the observation group took the hanging posture from lateral decubitus position. Duration of placement, the data about Fromme surgical field quality (SSFQ) score, Kolcaba comfort questionnaire (GCQ) score, and inci- dence of postoperative adverse effects were collected and then compared between the two groups. Results.Com- pared with the control group, the placement time and SSFQ score were significantly lower (P < 0.05), and the GCQ score were significantly increased in the observation group (P < 0.05), moreover, the incidence of postopera- tive adverse effects was significantly lower in the observation group compared with the control group (P < 0.05). Conclusion.The side up hanging posture has achieved good performance in thoracoscopic lobectomy, which can not only effectively shorten the placement period, improve the operation quality of the surgical field, but also sig- nificantly reduce the incidence of adverse effects owing high clinical implementation value. [ABSTRACT FROM AUTHOR]