Semantic communication system is currently a hot research topic in the communication field, but a mature evaluation system has not been established in this field, which leads to the different ...performance of semantic communication systems designed under different performance metrics.This paper mainly focuses on semantic communication systems, introducing perfor-mance metrics based on precision, performance metrics based on recall, performance metrics based on the combination of precision and recall, and performance metrics based on word vector space models.It also elaborates on the background, significance, main algorithm ideas, and scope of application of various performance metrics in semantic communication, and analyzes and compares the differences, advantages and disadvantages of each performance metric.Finally, it summarizes the problems faced by semantic communication performance metrics at this stage, and points out the future development direction of performance metrics research in semantic communicati
To evaluate the application of Ni-Ti shape memory alloy stent for treating tracheal stricture, including its indications and complications.
Forty-three patients clinical data were analyzed, among ...them, 15 suffered from tumor; 7 trauma; 4 granulation; 1 Wegener's granuloma, 2 rhinoscleroma, 1 without clear diagnosis; 7 were relapsing polychondritis; 1 were respiratory amyloidosis; 4 were tracheobronchial tuberculosis, 5 were tracheobronchomalacia. The stricture degree: Level I: 15 patients, Level II:24 patients, Level III:4 patients. The location of stricture in 5 patients extended to the subglottis area. All patients had tracheal stricture and accepted the treatment with Ni-Ti shape memory alloy stent.
Forty-two patients breathed freely after the operation, 1 patient died after surgery. The tracheostoma in 18 patients was closed 34 days after operation. Among the remaining 8 patients with tracheostoma:3 patients left hospital with tracheal cannula; 1 patient died,2 patients were found stent shifted and no evi
Traffic jams, pollution, ecological deterioration as a concentrated form of "City syndrome" is the major problems encountered in the process of urban development in China, this indicates that the ...tense contradiction of urban land in our country is quite prominent.This article presents the rational development and utilization of underground space, ease the ground hard, so as to achieve harmonious development of urban underground integration on the ground.
The aim of this study was to investigate the expression of anaplastic lymphoma kinase (ALK) protein resulted from chromosome translocation in anaplastic large cell lymphoma (ALCL) and its ...relationship with the age and prognosis of patients with ALCL. The tissue microarray including 30 cases of ALCL and 2 normal control tissues were established, the expression of anaplastic lymphoma kinase (ALK) protein was detected by immunohistochemistry, the statistical analysis of detected results was carried out by SPSS software. The results showed that the ALK protein was expressed negatively in 2 cases of primary skin ALCL, but in 20 out of 28 cases of systematic ALCL the ALK protein was expressed positively and mainly located in cytoplasm and/or nucleus (71.4%). Clinically, the patients with ALK expression were younger than those without ALK expression (p < 0.05). The prognosis of patients with ALK expression was better than those without ALK expression (p < 0.05). It is concluded that there is a high incidence of ALK
To explore correlation of seven apoptosis-related proteins (Hsp90a, p53, MDM2, Bcl-2, Bax, Cytochrome C, and Cleaved caspase3) with clinical outcomes of ALK+ anaplastic large-cell lymphoma (ALCL).
...Using immunohistochemistry and immunofluorescence double staining methods, the expressions of these seven apoptosis-associated proteins were studied to clarify their relationship with clinical outcomes of 36 ALK+ and 25 ALK-systemic ALCL patients enrolled between 1996 and 2006. The relationship of these apoptosis-regulating proteins with NPM-ALK status was also evaluated with the tyrosine inhibitor herbimycin A (HA) in vitro by immunocytochemistry, Western blotting and flow cytometric assays.
The presence of Hsp90α-, MDM2-, Bax-, Cytochrome C, and Cleaved caspase3-positive tumor cells was found significantly different in ALK+ and ALK-ALCLs, which was correlated with highly favorable clinical outcome. The Bcl-2- and p53-positive tumor cells were found in groups of patients with unfavorable prognosis. Inhibition of NPM-ALK by HA could reactivate the p53 protein and subsequent apoptosis-related proteins and therefore induced apoptosis in ALK+ ALCL cells.
Our results suggest that these seven proteins might be involved in apoptosis regulation and associated with clinical outcome of ALK+ systemic ALCLs. We also reveal a dynamic chain relation that NPM-ALK regulates p53 expression and subsequent apoptosis cascade in ALK+ ALCLs.
To compare the efficacy of nuclear microarray combined with fluorescence in situ hybridization (FISH) and immunohistochemistry in detecting ALK gene translocation and ALK fusion protein in anaplastic ...large cell lymphoma (ALCL).
ALK gene translocation and ALK fusion protein in 17 paraffin-embedded ALCL specimens were detected using nuclear microarray combined with FISH and immunohistochemical straining, respectively.
The expression of ALK fusion protein was detected immunohistochemically with ALK antibody in 8 of the 17 specimens of systemic ALCL, including 4 with both nuclear and cytoplasmic positivity and 4 with only cytoplasmic positivity. Dual-color FISH identified 6 positive specimens, including the 4 specimens with both nuclear and cytoplasmic positivity as identified immunohistochemically, and 2 with immunohistochemical cytoplasmic positivity. FISH yielded negative results for the 2 specimens with immunohistochemical cytoplasmic positivity.
Nuclear microarray combined with FISH eliminated the cytoplasmi
Background: Right upper lobectomy(RUL) for lung cancer with di erent dissecting orders involves the most vari?able anatomical structures, but no studies have analyzed its e ects on postoperative ...recovery. This study compared the conventional surgical approach, VAB(dissecting pulmonary vessels first, followed by the bronchus), and the alter?native surgical approach, a BVA(dissecting the posterior ascending arterial branch first, followed by the bronchus and vessels) on improving surgical feasibility and postoperative recovery for lung cancer patients.Methods: According to the surgical approach, consecutive lung cancer patients undergoing RUL were grouped into a BVA and VAB cohorts. Their clinical, pathologic, and perioperative characteristics were collected to compare periop?erative outcomes.Results: Three hundred one patients were selected(109 in the a BVA cohort and 192 in the VAB cohort). The mean operation time was shorter in the a BVA cohort than in the VAB cohort(164 vs. 221 min, P < 0.001), and less blood loss occurred in the a BVA cohort(92 vs. 141 m L, P < 0.001). The rate of conversion to thoracotomy was lower in the a BVA cohort than in the VAB cohort(0% vs. 11.5%, P < 0.001). The mean duration of postoperative chest drainage was shorter in the a BVA cohort than in the VAB cohort(3.6 vs. 4.5 days, P rvival was n= 0.001). The rates of postoperative complica?tions were comparable(P = 0.629). The median overall suot arrived in both cohorts(P > 0.05). The median disease?free survival was comparable for all patients in the two cohorts(not arrived vs. 41.97 months) and for patients with disease recurrences(13.25 vs. 9.44 months)(both P > 0.05). The recurrence models in two cohorts were also comparable for patients with local recurrences(6.4% vs. 7.8%), distant metastases(10.1% vs. 8.3%), and both(1.8% vs. 1.6%)(all P > 0.05).Conclusions: Dissecting the right upper bronchus before turning over the lobe repeatedly and dissecting veins via the a BVA approach during RUL would promote surgical feasibility and achieve comparable postoperative recovery for lung cancer patients.
X-ray diffraction （XRD） was employed to analyze the texture evolution of commercial pure （CP） Ti during cold rolling and re- crystallization annealing. The texture components were measured by ...electron backscattered diffraction （EBSD） after recrystallization an- nealing. The CP Ti tends to form a texture with the basal pole tilted 30°-40° away from the normal direction toward the transverse direction. The texture of the initial hot-rolled plate can be classified into three kinds, i.e., the pyramid texture （1013）5230 and （2021）1015, the basal plane texture （0001）2110, and the stronger_prism_texture （1120）0001. After cold rolling and annealing （700℃,60 min）,_the main texture components are the cold-rolled texture （1125）1123 and the recrystallized texture （1013）5230. The texture （2021）1015 is in- herited from the texture of the initial hot-rolled plate with the decrease of orientation density gradually. The volume contents of the cold-rolled texture {2115}（0110） and the recrystallized texture {1013}（1210） are calculated by EBSD. After recrystallization annealing, the specimen is rich in the recrystallized texture and inherits some of texture components from the cold-rolled texture. When the annealing time is prolonged, the anisotropic value decreases.
Swash plate axial piston pumps have been widely used in industry and engineering applications. The tilting moment acting on the cylinder block varies over one shaft revolution, which causes the ...unstable tilt motion. In order to identify stability analysis of the tilting moment, the mechanical analysis models of the piston and the piston/cylinder block are established, the simulation is followed and the results show the danger of the cylinder block tipping rises with the conical angle and the rotation speed increasing, while the latter is beyond the turning speed, the cylinder block runs more stably with the conical angle rising. Furthermore, based upon the structure, an optimizing approach is obtained which could ensure the motion is more stable.
Collection of selected, peer reviewed papers from the 2014 17th Conference of Hydrodynamic and Electromechanical Control Engineering, July 27-29, 2014, Lhasa City, Tibet. The 40 papers are grouped as ...follows: Chapter 1: Hydraulic, Mechanical and Electromechanical Systems Components, Materials Processing; Chapter 2: Flow Machinery and Engineering;Chapter 3: Hydraulic Systems, Servosystems and Transmission, Driving Systems; Chapter 4: Advanced Control Research and Application; Chapter 5: Industry ApplicationKeyword: Transmission, Simulation, Fluidi Hydraulic, Pneumatic, Electro-hydraulic, Fault Diagnosis, Condition Monitoring, Control, ApplicationPart of the Applied Mechanics and Materials series, this volume contains the selected peer reviewed paper from the 2014 17th Conference of Hydrodynamic and Electromechanical Control Engineering held on July 27-29, 2014, in Lhasa City, Tibet. The conference was designed as a way to promote the exchange of ideas relating to fluid power transmission and control. Papers are organized into five chapters: Hydraulic, Mechanical, and Electromechanical Systems Components, Materials Processing, Flow Machinery and Engineering, Hydraulic Systems, Servosystems and Transmission, Driving Systems, Advanced Control Research and Application, and Industry Application. - Engineering- Engineering -- Electrical- Mechanical engineering
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