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Cobalt sulfide is deemed a promising anode material, owing to its high theoretical capacity (630 mAh g -1 ). Due to its low conductivity, fast energy decay, and the huge volume change during the lithiation process limits its practical application. In this work, a simple and large-scale method are developed to prepare Co 1-x S nanoparticles embedding in N-doped carbon/graphene (CSCG). At a current density of 0.2 C, the reversible discharge capacity of CSCG maintains 937 mAh g -1 after 200 cycles. The discharge capacity of CSCG maintains at 596 mAh g -1 after 500 cycles at the high current density of 2.0 C. The excellent performance of CSCG is due to its unique structural features. The addition of rGO buffered volume changes while preventing Co 1-x S from crushing/aggregating during the cycle, resulting in multiplier charge-discharge and long cycle life. The N-doped carbon provides a simple and easy way to achieve excellent performance in practical applications. Combined with density functional theory calculation, the presence of Co-vacancies(Co 1-x ) increases more active site. Moreover, N-doping carbon is beneficial to the improve adsorption energy. This work presents a simple and effective structural engineering strategy and also provides a new idea to improve the performance of Li-ion batteries., (© 2023 Wiley‐VCH GmbH.)

Aim: This study aimed to develop an evaluation index system for hand surgery rehabilitation nursing using the Delphi method., Method: A survey questionnaire on evaluation indicators for hand surgery rehabilitation nursing was developed, and 18 professionals including orthopedic surgeons, orthopedic nursing, and rehabilitation departments were selected. The survey was conducted using the letter method, and a database was established to screen the items, forming a hand surgery rehabilitation nursing evaluation scale. The expert's positive coefficient, authority coefficient, and coordination coefficient were analyzed, and the mean, standard deviation, coefficient of variation, and weight coefficient were calculated. Based on the correlation assignment results, the Item-level Content Validity Index (I-CVI), Scale-level Content Validity Index (S-CVI), average S-CVI, Probability of random consistency (Pc), and corrected I-CVI Kendall's coefficient of concordance (K*) were determined., Result: In the first round of expert inquiry, a total of 18 questionnaires were distributed, and 15 valid questionnaires were collected, with an effective response rate of 83.33%. In the second round, 15 questionnaires were distributed and 15 valid questionnaires were collected, with an effective response rate of 100%. The two rounds of expert evaluations yielded judgment scores of 0.91 and 0.95, with proficiency levels of 0.83 and 0.87 and authority coefficients of 0.87 and 0.91, respectively. The Kendall's W values for the two rounds were 0.313 and 0.224, respectively, with a statistically significant difference (p < 0.01). After screening, 23 indicators were retained, with a coefficient of variation ranging from 0.072 to 0.166. Among the third-level indicators, 12 had an I-CVI of 1.00, 4 had an I-CVI of 0.93, and 7 had an I-CVI of 0.87. The overall S-CVI was 0.80, with an average S-CVI of 0.95. The K* values for the 23 indicators ranged from 0.8662 to 1.0000., Conclusions: The evaluation index system for hand injury rehabilitation nursing based on the Delphi method is highly scientific, and is expected to be used to guide the clinical evaluation of hand injury rehabilitation nursing.