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基于环流相似度的变压器零模涌流识别与零序保护方法 被引量:1
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作者 李珂 刘之畅 +2 位作者 屈建宇 郭少雄 尹项根 《电网与清洁能源》 CSCD 北大核心 2024年第4期54-64,共11页
随着我国电力系统规模的扩大和输电容量的增加,Yd连接的高阻抗变压器得到了广泛应用。传统的变压器零序差动保护采用二次谐波比进行涌流制动,但该方法在空投于内部故障时会出现拒动情况。提出了一种基于环流相似度的变压器零模涌流识别... 随着我国电力系统规模的扩大和输电容量的增加,Yd连接的高阻抗变压器得到了广泛应用。传统的变压器零序差动保护采用二次谐波比进行涌流制动,但该方法在空投于内部故障时会出现拒动情况。提出了一种基于环流相似度的变压器零模涌流识别与零序保护方法,该方法计算原方零模涌流和副方环流的波形相似度,再根据变压器三相的饱和系数识别内部故障,综合实现变压器准确的涌流闭锁。仿真和实验结果表明,所提保护方法在变压器和应涌流及空投于内部故障情况下均能正确动作。 展开更多
关键词 零模涌流 和应作用 变压器保护 波形相似度 零序保护
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Non-Darcy flow seepage characteristics of saturated broken rocks under compression with lateral constraint 被引量:3
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作者 Yu Bangyong Chen Zhanqing +1 位作者 Ding Qile Wang Luzhen 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第6期1145-1151,共7页
Using an MTS816.03 test system and self-designed seepage apparatus, seepage tests of saturated broken rocks were conducted, and the influence of lithology, axial stress, grain size distribution and loading rate on see... Using an MTS816.03 test system and self-designed seepage apparatus, seepage tests of saturated broken rocks were conducted, and the influence of lithology, axial stress, grain size distribution and loading rate on seepage characteristics was analyzed. The results show that: (1) Under the same axial stress (12 MPa), the permeability of different lithologic samples increases in the order: gangue 〈 mudstone 〈 sandstone 〈 limestone. The permeability of gangue is 3 magnitudes lower than that of limestone. The absolute value of the non-Darcy coefficient β increases in the order: limestone 〈 sandstone 〈 mudstone 〈 gangue. The non-Darcy coefficient β of limestone, which is positive, is 5 magnitudes lower than that of gangue. (2) With increasing axial stress, the permeability of saturated broken sandstone decreases, and the absolute value of the non-Darcy coefficient β increases. After the axial stress exceeds 12 MPa, the curves of permeability and non-Darcy coefficient β all tend to be stable. (3) With increasing Talbol power exponent, the permeability increases, and the absolute value of the non-Darcy coefficient β decreases. (4) With increasing loading, the permeability increases, and the absolute value of the non-Darcy coefficient β decreases. When the loading rate is 0.5 kN/s, the non-Darcy coefficient β is positive. 展开更多
关键词 Saturated broken rocks Seepage test Permeability Non-Darcy coefficient β
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Clinical study of warming needle therapy in preventing and treating peripheral neuropathy after albumin-bound paclitaxel plus cisplatin chemotherapy
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作者 WANG Tiantian XIONG Zhonghao +1 位作者 TIAN Fengwei SONG Na 《Journal of Acupuncture and Tuina Science》 2025年第1期63-72,共10页
Objective:To observe the preventive and treatment effects of warming needle therapy on peripheral neuropathy after albumin-bound paclitaxel plus cisplatin chemotherapy.Methods:Eighty patients who received albumin-boun... Objective:To observe the preventive and treatment effects of warming needle therapy on peripheral neuropathy after albumin-bound paclitaxel plus cisplatin chemotherapy.Methods:Eighty patients who received albumin-bound paclitaxel plus cisplatin chemotherapy after being diagnosed with cancer were divided into an observation group and a control group using the simple random allocation table method,with 40 cases in each group.The control group received methylcobalamin dispersible tablets via oral administration,and the observation group received warming needle therapy.They were observed for the incidence of chemotherapy-induced peripheral neuropathy(CIPN),Levi’s specific sensory neurotoxicity grading,brief pain inventory(BPI)score,nerve conduction velocities of the limbs,and traditional Chinese medicine(TCM)symptom scores before treatment,at the 21st day of the first cycle of chemotherapy(D1),and the 21st day of the second chemotherapy cycle(D2).The clinical efficacy was assessed at D2.Results:The incidence of CIPN was 92.5%in the control group,higher than 75.0%in the observation group(P<0.05).At D2,the number of people graded 0 on Levi’s specific sensory neurotoxicity grading was larger in the observation group than in the control group,and the number of those graded 2 was smaller in the observation group(P<0.05);the observation group had a higher markedly effective rate than the control group(P<0.05).At D2,the BPI general score,BPI pain intensity score,and BPI pain interference score significantly dropped in the observation group compared to those before treatment(P<0.05).At D1,the motor nerve conduction velocity(MNCV)and sensory nerve conduction velocity(SNCV)of the limbs decreased in both groups compared to those before treatment;at D2,the MNCV and SNCV increased in the two groups compared to D1 and were higher in the observation group than in the control group(P<0.05).At D1,the TCM symptom scores increased in both groups compared to those before treatment,and the observation group was lower than the control group in comparing the scores of numbness in the extremities and poor appetite(P<0.05).At D2,the observation group showed decreases in all TCM symptom scores compared to D1 except for the scores of nausea and vomiting and poor appetite(P<0.05),while the control group had no significant changes in the TCM symptom scores compared to D1(P>0.05);the observation group was lower than the control group in comparing each symptom score(P<0.05).There were no significant adverse reactions in either group over the study period.Conclusion:Compared to oral administration of methylcobalamin dispersible tablets,warming needle therapy shows certain strengths in managing CIPN after albumin-bound paclitaxel plus cisplatin chemotherapy,and it can better improve chemotherapy-induced gastrointestinal reactions. 展开更多
关键词 Acupuncture Therapy Warming Needle Therapy Drug Therapy Drug-related Side Effects and Adverse Reaction Peripheral Neuropathies Nerve Conduction Velocity Tests
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Effect of acupoint massage plus acupoint sticking therapy for the stress reaction during postoperative anesthesia recovery period in patients undergoing nasal endoscopic surgery 被引量:4
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作者 陆伟钰 沈娟芬 +2 位作者 沈丽萍 朱建芬 贾一凡 《Journal of Acupuncture and Tuina Science》 CSCD 2018年第5期343-348,共6页
Objective:To observe the effect of acupoint massage plus acupoint sticking therapy for the stress reaction during postoperative anesthesia recovery period in patients undergoing nasal endoscopic surgery.Methods:A tota... Objective:To observe the effect of acupoint massage plus acupoint sticking therapy for the stress reaction during postoperative anesthesia recovery period in patients undergoing nasal endoscopic surgery.Methods:A total of 120 patients undergoing nasal endoscopic surgery were included,and all patients were under trachea intubation and general anesthesia.The patients were randomized into an observation group and a control group,with 60 patients in each group.Patients in the control group received conventional anesthesia resuscitation,while patients in the observation group received acupoint massage plus acupoint sticking therapy on the basis of conventional anesthesia resuscitation.Changes in the heart rate (HR),systolic blood pressure (SBP) and diastolic blood pressure (DBP) were observed at three time points including the end of the surgery (TO),the removal of the tracheal tube (T1) and 10 min after the removal of the tracheal tube (T2).The awakening and tube removal time,choking cough and restlessness,and adverse reactions (dizziness,nausea and vomiting) in 24 h post-surgery period were compared.Results:At T1 and T2,the comparisons of HR,SBP and DBP between the two groups showed statistical significance (all P<0.05).Intra-group comparisons showed that the HR,SBP and DBP of the control group at T1 and T2 were significant different from those at TO (all P<0.05).There were significant differences in the awakening time and tube removal time between the two groups (both P<0.05).The incidences of choking cough and restlessness were 8.3% and 3.3% respectively in the observation group,versus 53.3% and 30.0% in the control group,and the between-group comparisons showed statistical significance (both P<0.05).The incidences of dizziness,nausea and vomiting in 24 h post-surgery period were 3.3%,5.0% and 0.0% respectively in the observation group,versus 43.3%,33.3% and 25.0% in the control group,and the between-group comparisons showed statistical significance (all P<0.05).Conclusion:Acupoint massage plus acupoint sticking therapy can effectively regulate the stress reaction during postoperative anesthesia recovery period in patients undergoing nasal endoscopic surgery,and maintain a stable internal environment. 展开更多
关键词 TUINA MASSAGE Acupoint Sticking Therapy Nasal Surgical Procedures Anesthesia Recovery Period Anesthesia General Drug-related Side Effects and Adverse Reaction
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Therapeutic observation of grain-sized moxibustion for chemotherapy-induced myelosuppression for non-small cell lung cancer 被引量:6
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作者 Bao Guan-ai Du Wei-bin +1 位作者 Wang Chen Jin Ying-nan 《Journal of Acupuncture and Tuina Science》 CSCD 2019年第4期239-244,共6页
Objective: To observe the clinical efficacy of grain-sized moxibustion in treating chemotherapy-induced myelosuppression for non-small cell lung cancer (NSCLC) and its effect on quality of life (QOL). Methods: Eighty ... Objective: To observe the clinical efficacy of grain-sized moxibustion in treating chemotherapy-induced myelosuppression for non-small cell lung cancer (NSCLC) and its effect on quality of life (QOL). Methods: Eighty NSCLC patients admitted to the Inpatient Department of Zhejiang Cancer Hospital between September 2016 and March 2018 were recruited and divided into an observation group and a control group by random number method, with 40 cases in each group. The two groups both received chemotherapy with paclitaxel plus cisplatin (TP regimen). The control group received oral administration of leucogen tablets starting from the first day of chemotherapy, 20 mg each time, three times a day, for consecutive 14 d;the observation group was additionally given grain-sized moxibustion, once a day, five days per week at a two-day interval, until the fourteenth day. The myelosuppression severity was observed and compared between the two groups prior to chemotherapy, at the 3rd, 7th and 14th days of chemotherapy;the QOL in the two groups was evaluated before chemotherapy, at the 14th and 21st days of chemotherapy. Results: Regarding myelosuppression, the peripheral blood indicators increased significantly at the 3rd day of chemotherapy in both groups (P<0.05 or P<0.01);at the 7th and 14th days of chemotherapy, the peripheral blood indicators presented a decreasing tendency in the two groups, but the level in the observation group was still significantly higher than that before chemotherapy (P<0.01);at the 3rd, 7th and 14th days of chemotherapy, the peripheral blood indicators in the observation group were higher than those in the control group (P<0.05 or P<0.01);the occurrence rate of myelosuppression in the observation group was significantly lower than that in the control group (P<0.01). The QOL score in the observation group was markedly higher than that in the control group at the 14th and 21st days of chemotherapy (both P<0.05). Conclusion: Grain-sized moxibustion can effectively improve myelosuppression after chemotherapy for NSCLC, reducing its occurrence and enhancing the patient's QOL. 展开更多
关键词 Acupuncture-moxibustion Therapy Moxibustion Therapy Moxibustion with Grain-sized Moxa Cone Lung Neoplasms CHEMORADIOTHERAPY Drug-related Side Effects and Adverse Reaction MYELOSUPPRESSION Quality of Life
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Effect of mild moxibustion on cancer-related fatigue,serum ghrelin and adiponectin in patients undergoing chemotherapy after colorectal cancer surgery 被引量:5
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作者 Luo Qian Chen Jia-quan Yang Yan-ping 《Journal of Acupuncture and Tuina Science》 CSCD 2021年第3期200-205,共6页
Objective To observe the effect of mild moxibustion on cancer-related fatigue,serum ghrelin and adiponectin in patients undergoing chemotherapy after colorectal cancer surgery.Methods Seventy patients were divided int... Objective To observe the effect of mild moxibustion on cancer-related fatigue,serum ghrelin and adiponectin in patients undergoing chemotherapy after colorectal cancer surgery.Methods Seventy patients were divided into a control group and an observation group according to the random number table method,with 35 cases in each group.Patients in both groups were treated with conventional FOLFOX4 chemotherapy regimen.Patients in the control group also received routine treatments such as symptomatic treatment of complications,health education,nutritional support,and exercise intervention.Patients in the observation group received mild moxibustion on the basis of interventions used in the control group.The Piper fatigue scale-revision(PFS-R),Karnofsky performance status(KPS)and spleen and kidney yang deficiency syndrome were scored,and serum ghrelin and adiponectin levels were measured before and after treatment.Results After treatment,total score of PFS-R in the control group did not change significantly(P>0.05),while in the observation group it was significantly reduced(P<0.05)and lower than that in the control group(P<0.05);KPS scores in both groups were increased(both P<0.05),and it was significantly higher in the observation group than in the control group(P<0.05);total score of spleen and kidney yang deficiency syndrome in the control group did not change significantly(P>0.05),while it was significantly reduced in the observation group(P<0.05)and lower than that in the control group(P<0.05);serum ghrelin and adiponectin levels in the control group had no significant changes(both P>0.05),but the levels were significantly increased in the observation group(both P<0.05)and higher than those in the control group(both P<0.05).Conclusion Based on the routine treatments,mild moxibustion can relieve fatigue,improve quality of life,and improve the symptoms of spleen and kidney yang deficiency in patients undergoing chemotherapy after colorectal cancer surgery,which may be related to the regulation of serum ghrelin and adiponectin levels. 展开更多
关键词 Moxibustion Therapy Moxa Stick Moxibustion Drug Therapy Drug-related Side Effects and Adverse Reactions Colorectal Neoplasms FATIGUE GHRELIN ADIPONECTIN
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Scalp acupuncture combined with body acupuncture for 32 cancer cases with intractable hiccups after radiochemotherapy 被引量:1
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作者 耿涛 邓樱 《Journal of Acupuncture and Tuina Science》 CSCD 2015年第5期312-314,共3页
Objective: To observe the therapeutic effect of scalp acupuncture combined with body acupuncture in treating cancer patients with intractable hiccups after radiochemotherapy. Methods; Thirty-two cancer patients with ... Objective: To observe the therapeutic effect of scalp acupuncture combined with body acupuncture in treating cancer patients with intractable hiccups after radiochemotherapy. Methods; Thirty-two cancer patients with intractable hiccups after radiochemotherapy who met the inclusion criteria were selected. The Line 2 Lateral to Forehead (MS 3) of scalp stimulation areas as well as body acupoints including Danzhong (CV 17), Zhongwan (CV 12), bilateral Cuanzhu (BL 2), Neiguan (PC 6), Zusanli (ST 36) and Taichong (LR 3) were punctured. The treatment was given once a day, 5 treatments constituted a course, and the efficacy was evaluated after 2 treatment courses. Results: After 10 treatments, 26 cases were cured, 4 cases were improved, and 2 cases were invalid, and the total effective rate was 93.8%. Conclusion: Scalp acupuncture combined with body acupuncture in treating intractable hiccups in cancer patients after radiochemotherapy has reliable therapeutic effect, and it is easy-to-operate and can effectively alleviate the suffering of patients with less adverse reaction. 展开更多
关键词 Acupuncture Therapy Scalp Acupuncture Scalp Stimulation Areas NEOPLASMS CHEMORADIOTHERAPY Drug-related Side Effects and Adverse Reactions HICCUP
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Acupoint Sticking at Shenque(CV 8) with Ginger-prepared Ban Xia(Rhizoma Pinelliae) for Nausea and Vomiting Induced by Amifostine 被引量:1
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作者 Wang Li-na Hu Hong-yan +2 位作者 Qiu Yi-ling Zhou Yu-hong Hong Jue 《Journal of Acupuncture and Tuina Science》 2014年第4期221-224,共4页
Objective: To observe the treatment effect of acupoint sticking at Shenque (CV 8) with ginger-preparedBan Xia (Rhizoma Pinelliae) on nausea and vomiting induced by Amifostine for myelodysplastic syndromes (MDS)... Objective: To observe the treatment effect of acupoint sticking at Shenque (CV 8) with ginger-preparedBan Xia (Rhizoma Pinelliae) on nausea and vomiting induced by Amifostine for myelodysplastic syndromes (MDS). Methods: Totally 124 eligible subjects intervened by Amifostine were randomized into 2 groups by the visiting order,an observation group and a control group,62 in each group. The control group was intervened by conventional treatment, while the observation group was by acupoint sticking at Shenque (CV 8) with ginger-preparedBan Xia (Rhizoma Pinelliae) in addition to the same conventional treatment. The occurrence rate of nausea and vomiting in the two groups were observed. Results: After intervention, the occurrence rate of nausea and vomiting in the observation group was significantly lower than that in the control group (P&lt;0.01). Conclusion: Acupoint sticking at Shenque (CV 8) with ginger-prepared Ban Xia (Rhizoma Pinelliae)can produce a content effect on nausea and vomiting induced by Amifostine for MDS. 展开更多
关键词 Myelodysplastic Syndromes AMIFOSTINE Drug-related Side Effects andAdverse Reactions NAUSEA VOMITING Acupoint Sticking Therapy Point Shenque (CV 8)
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Observation of therapeutic effects of point application at Shenque(CV 8)plus moxa-salt hot compress for prevention of gastrointestinal adverse reactions after chemotherapy for non-Hodgkin Iymphoma 被引量:1
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作者 Guo Yan-fei Hu Qun-ling +1 位作者 Cai Yang-yang Fu Xiao-wei 《Journal of Acupuncture and Tuina Science》 CSCD 2018年第4期248-252,共5页
Objective:To observe the clinical efficacy of point application with De Huang(Rhizome Rhei Crude)powder at Shenque(CV 8)plus moxa-salt hot compress on the umbilicus for preventing gastrointestinal adverse reactions af... Objective:To observe the clinical efficacy of point application with De Huang(Rhizome Rhei Crude)powder at Shenque(CV 8)plus moxa-salt hot compress on the umbilicus for preventing gastrointestinal adverse reactions after chemotherapy for non-Hodgkin lymphoma(NHL).Methods:A total of 60 cases with NHL under chemotherapy were divided into two groups by hospitalization order,with 30 cases in each group.The control group was treated with routine nursing and the observation group was additionally given point application with Da Hueng(Rhizome Rhei Crude)powder plus moxa-salt hot compress on the umbilicus,to compare the effect in preventing gastrointestinal adverse reactions after chemotherapy between the two groups.Results:The occurrence rates of constipation,nausea,vomiting and poor appetite on the second day and fifth day after chemotherapy were obviously lower in the observation group than those in the control group,with statistically significant differences between the two groups(all P〈0.05).Conclusion;The point application with De Hueng(Rhizome Rhei Crude)powder at Shenque(CV 8)plus maxa-salt hot compress on the umbilicus can produce more significant efficacy in preventing the gastrointestinal adverse reactions after chemotherapy for NHL than routine nursing.Moreover,it is simple and easy to be used and popularized. 展开更多
关键词 POINT Shenque(CV 8) Acupoint Therapy Acupoint Sticking Therapy Lymphoma NON-HODGKIN CHEMORADIOTHERAPY Drug Therapy Drug-related Side Effects and Adverse Reactions
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Effect of acupoint sticking at Shenque (CV 8) for preventing spleen-stomach disharmony caused by venous analgesia pump
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作者 Ye Fu-ying Yu Ya-ping Huang Wen-hong 《Journal of Acupuncture and Tuina Science》 CSCD 2018年第3期167-170,共4页
Objective: To observe the clinical effect of acupoint sticking of Chinese medicine at Shenque (CV 8) for preventing spleenstomach disharmony caused by venous analgesia pump. Methods: A total of 120 post-surgery pa... Objective: To observe the clinical effect of acupoint sticking of Chinese medicine at Shenque (CV 8) for preventing spleenstomach disharmony caused by venous analgesia pump. Methods: A total of 120 post-surgery patients using venous analgesia pump and also conforming to the inclusion criteria were randomized into 2 groups by the random number table. There were 58 patients in the control group who received conventional post-surgery nursing care, and there were 62 patients in the treatment group who received acupoint sticking at Shenque (CV 8) on the basis of conventional nursing care. After treatment, the incidences of postoperative nausea and vomiting, and abdominal bloating were measured. Results: The total incidence of nausea, vomiting and abdominal bloating in the treatment group was 11.3%, versus 39.7% in the control group, and the difference of the incidence between the two groups showed a statistical significance (P〈0.05). In comparison of the severity of spleen-stomach dishormony which happened during 72 h after surgery, cases in the treatment group showed lower severity than those in the control group (P〈0.05). Conclusion: Acupoint sticking at Shenque (CV 8) can effectively prevent spleen-stomach disharmony caused by venous analgesia pump, which will alleviate sufferings of the patients. 展开更多
关键词 Point Shenque (CV 8) Acupoint Sticking Therapy ANALGESICS Pain Postoperative Spleen-stomach Disharmony Postoperative Nausea and Vomiting Drug-related Side Effects and Adverse Reactions
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