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When the operation and maintenance station performs cable maintenance, installation measures, etc., due to the lack of direct and effective tools, and the complicated wiring of the operation and maintenance station equipment, the wiring diagram is inconsistent with the actual situation, which brings risks to the removal of waste cables. As an indispensable safety tool in the power industry, the cable identification device is an important means to ensure the safety of maintenance personnel. In view of the current situation, this paper analyzes the electric field around the cable line of the operation and maintenance station, and simplifies the simulation of the line, and proposes a secondary cable identification device based on the principle of electromagnetic induction, which can quickly identify the target cable, which greatly improves the cable identification performance. Efficiency reduces the time for cable identification and improves safety.

To explore the safety and efficacy of Ruiyun procedure for hemorrhoids (RPH) or RPH with the simplified Milligan-Morgan hemorrhoidectomy (sMMH) in the treatment of mixed hemorrhoids.This is a randomized, controlled, balanced, multicenter study of 3000 patients with mixed hemorrhoids. The outcomes and postoperative complications were compared between 5 types of surgeries.The efficacy rate was the highest in patients who received RPH+sMMH and decreased in the following order: patients who received RPH alone, MMH alone, procedure for prolapse and hemorrhoids (PPH) alone, and PPH+sMMH ( P.05). The operation time was the shortest in patients who received RPH alone and increased in the following order: patients who received RPH+sMMH, PPH alone, MMH alone, and PPH+sMMH ( P.01). The duration of postoperative hospitalization stay was the shortest in patients who received RPH alone and increased in the following order: PPH alone, RPH+sMMH, PPH+sMMH, and MMH alone ( P.01). The incidence of postoperative hemorrhage, uroschesis, anal fissure, crissum hematoma or thrombosis, and anorectal stenosis was significantly lower in patients who received RPH+sMMH than in patients who received the other 4 types of surgical treatments ( P.05, P.01). No significant differences in postoperative rectovaginal fistula and anal incontinence were observed between the 5 groups of patients.RPH with or without simplified MMH can reduce the incidence of postoperative complications and improve the curative efficacy in the treatment of patients with mixed hemorrhoids.

Millions of infants and children are exposed to anesthesia every year during medical care. Sevoflurane is a volatile anesthetic that is frequently used for pediatric anesthesia. However, previous reports have suggested that the administration of sevoflurane promotes neurodegeneration, raising concerns regarding the safety of its usage. The present study aimed to investigate caffeic acid phenethyl ester (CAPE) and its protective effect against sevoflurane‑induced neurotoxicity in neonatal rats. Rat pups were administered with CAPE at 10, 20 or 40 mg/kg body weight from postnatal day 1 (P1) to P15. The P7 rats were exposed to sevoflurane (2.9%) for 6 h. Control group rats received no sevoflurane or CAPE. Neuronal apoptosis was determined by terminal deoxynucleotidyl transferase dUTP nick‑end labeling assay. The expression levels of caspases (caspase‑3, ‑8 and ‑9), apoptotic pathway proteins [Bcl‑2‑associated X protein (Bax), B cell CCL/lymphoma 2 (Bcl‑2), Bcl‑2‑like 1 (Bcl‑xL), Bcl‑2‑associated agonist of cell death (Bad) and phosphorylated (p)‑Bad], mitogen‑activated protein kinases (MAPK) signaling pathway proteins [c‑Jun N‑terminal kinase (JNK), p‑JNK, extracellular signal‑regulated kinase (ERK)1/2, p‑ERK1/2, p38, p‑p38 and p‑c‑Jun] and the phosphoinositide 3‑kinase (PI3K)/Akt cascade were evaluated by western blotting following sevoflurane and CAPE treatment. In addition, the expression of cleaved caspase‑3 was analyzed by immunohistochemistry. CAPE significantly reduced sevoflurane‑induced apoptosis, downregulated the expression levels of caspases and pro‑apoptotic proteins (Bax and Bad) and elevated the expression levels of Bcl‑2 and Bcl‑xL when compared with sevoflurane treatment. Furthermore, CAPE appeared to modify the expression levels of MAPKs and activate the PI3K/Akt signaling pathway. Thus, the present study demonstrated that CAPE effectively inhibited sevoflurane‑induced neuroapoptosis by modulating the expression and phosphorylation of apoptotic pathway proteins and MAPKs, and by regulating the PI3K/Akt pathway.

Objective To observe the safety and efficacy of RPH with the simplified. Milligan-Mor- gan(M-M) surgery on mixed hemorrhoids. Methods Totally 1 200 patients with mixed hemorrhoid were assigned to the control group(600 cases) and the treatment group(600 cases) according to randomized, parallel controlled,multi-center trial design. Patients in the control group received PPH with the simplified M-M surgery, and patients in the treatment group received RPH with the simplified M-M surgery. Postop- erative complications, operation time,the postoperative hospitalization days and the efficacy were ob- served. Results Compared with the control group, the numbers of postoperation hemorrhage, postop- erative uroschesis, anal fissure and anorectal stenosis in treatment group were decreased(P0. 01 , P0. 05), operation time and the postoperative hospitalization days were decreased (P0. 01 , P0. 05 ), the cure rate for 3 and 12 months after operation were increased (P0. 01, P0. 05). Conclusions RPH with the simplified M-M surgery could reduce the incidence of postoperative complications,improve the clinical cure rate and the curative effect in treatment of mixed hemorrhoids.

Power battery thermal management system (BTMS) is very important for the safe operation of electric vehicles (EVs). The cooling effect of air cooling, phase change material(PCM)cooling and liquid cooling applyed to BTMS are compared. The experiment results show that, in comparison with air cooling, PCM cooling and liquid cooling methods can reduce the battery temperature rise effectively; in comparison with PCM cooling, liquid cooling has a better effect in the aspect of controlling the battery temperature rise.

Based on the theory of microstrip antenna design and electromagnetic radiation, a kind of tag antenna with a bent meandered dipole and two short-circuited strips is studied in ultra high frequency (UHF) RFID bands to provide broadband and omni-directional performance simultaneously. The proposed antenna was fabricated with a thin copper layer printed on a thin lossy PET substrate for low-cost production. Our simulation and measurement results show the proposed antenna provides a quasi-isotropic radiation pattern and can obtain 200 MHz bandwidth under the condition of voltage standing wave ration (VSWR) less than 2, which is 1.5 dBi for worldwide UHF RFID bands. It is confirmed this kind of antenna is suitable for all different UHF RFID tags in passive RFID applications.

Superconducting thin films have been a focal point for intensive research efforts since their reduced dimension allows for a wide variety of quantum phenomena. Many of these films, fabricated in UHV chambers, are highly vulnerable to air exposure, making it difficult to measure intrinsic superconducting properties such as zero resistance and perfect diamagnetism with ex situ experimental techniques. Previously, we developed a multifunctional scanning tunneling microscope (MSTM) containing in situ four-point probe (4PP) electrical transport measurement capability in addition to the usual STM capabilities [Ge et al., Rev. Sci. Instrum. 86, 053903 (2015)]. Here we improve this MSTM via development of both transmission and reflection two-coil mutual inductance techniques for in situ measurement of the diamagnetic response of a superconductor. This addition does not alter the original STM and 4PP functions of the MSTM. We demonstrate the performance of the two-coil mutual inductance setup on a 10-nm-thick NbN thin film grown on a Nb-doped SrTiO3(111) substrate.

With the implementation of China Compulsive Certification (CCC), more and more manufacturers realize that they must improve their product quality on EMC. In this paper, one system of Electromagnetic Interference (EMI) Pre-Measuring is developed to meet the product designer's demand for EMI diagnoses. The system is applied to measure the unsymmetric interferential signal of supply line quantitatively based on the spectrum analyzer, line impedance stabilization network (LISN) and automatic test system. The structure of the test system is described firstly. Then the circuit diagram of V-LISN for the unsymmetric interferential signal test is showed. A designing method of automatic test system based on LabVIEW is commented in detailed. At last, a test is carried out to demonstrate the system is rational and applied.