Detection of reed using cnn method and analysis of the dry reed (phragmites australis) for a sustainable lake area.

BACKGROUND: Common reed (Phragmites australis L.) is a highly productive wetland plant and a possible valuable resource of renewable biomass worldwide. For a sustainable management the exploitation of reed is beneficial because the increasing demand for sustainable biomass which presents reed bed areas and wetlands. Knowing the properties of plant biomass obtained from reeds is essential both for the effect on combustion equipment and for the impact on the environment. Brates Lake, situated in Galati, Romania is a natural watershed with reed plantations. RESULTS: We used the convolutional neural network method combined with the cropped image techniques represent a powerful tool for high-precision image-based biomass detection in lake areas. The study aimed to investigate the morphological and chemical parameters through SEM-EDX analysis and pH, conductivity, nitrate anion, nitrite anion, total nitrogen, sulphate anion, sulphide anion, phosphate anion concentrations were determined from reed extract. The samples have a moderately acidic reaction pH 4.91-4.98. The number of soluble salts in the reed extract is in the range of 3.24-4.70 g/L, the values are within normal limits, providing the plant with the necessary nutrients. CONCLUSIONS: This is the first time that neural networks are used for the detection and prediction of areas at risk for biodiversity (reduction of water gloss until it disappears, imbalances caused by keeping reeds dry in water) caused by the aggressive and uncontrolled growth of reeds.

Waste slag benefits for correction of soil acidity.

The global trend is to find new materials with improved environment friendly. The sustainable development of 2030 AGENDA and Waste Management Legislation sustain the disposal of a large quantity of slag at landfill sites by causing environmental consequences which has drawn attention to the need for its more effective recycling. Heavy industries have been operating in the Galati area for over 30 years and an ecological education is necessary for an efficient management of waste slag. The agricultural land resources are an issue world-wide and through this investigative study we showed that the mixture of blast furnace slag and waste slag dumped in landfill can help remediation of the soil acidity and increasing the crop yield. The chemical, structural and morphological properties of three investigated different slag samples are evaluated for recycling in agriculture. Results indicated that the obtained mixture of the slag waste dumped in landfill and of granulated metallurgical slag shows its usage in saving the affected lands. Therefore, by elemental analysis determined by X-ray fluorescence analytical equipment, the optimum weight ratio for the composition of soil-slag mixture were achieved. The obtained mixture presents a balance between soil pH = 5.2 corresponding to a medium acid soil and slag pH = 12.5 which corresponds as strongly basic character which is beneficial in amelioration process of acidic soils for the improving of soil characteristics.

Effect of Electrodeposition Parameters on the Morphology, Topography and Corrosion Resistance of Epoxy Resin/Zinc Hybrid Coatings.

The paper presents the morphology, topography and corrosion behavior of epoxy resin/zinc hybrid coatings obtained by electrodeposition from zinc sulphate electrolyte. The effect of current density and mean diameter size of polymer particles used for electrodeposition of the epoxy resin/zinc coatings on the morphology, topography and roughness of the surfaces were investigated by Scanning Electron Microscopy and Atomic Force Microscopy. The corrosion behavior of the hybrid coatings in 0.5 M sodium chloride solution was evaluated using electrochemical methods. For microbiological corrosion, the effect of sulphate reducing bacteria (SRB) on the surfaces was evaluated using epifluorescence microscopy. The surface roughness before and after bacteria attachment was evaluated using Atomic force microscopy. Polymer particles provide an influence in restricting the growth of zinc crystals as well as a catalytic role in nucleation sites increase. The results of electrochemical tests indicate a very good corrosion resistance of hybrid coatings comparing with zinc coatings. Epifluorescence images demonstrate that hybrid coating surfaces are slightly attacked by sulphate reducing bacteria.

[Tuberculosis or sarcoidosis]. / Tuberculoza sau sarcoidoza?

Tuberculosis and sarcoidosis are two different diseases with different etiology, clinical features and treatment. Both are granulomatous disease, but tuberculosis has a caseating necrosis granuloma as opposed to sarcoidosis witch present noncaseating epithelioid cell granuloma. If chest radiography shows hilar lymphadenopathy and hystopatological features reveal no caseating necrosis granuloma the differential diagnosis might be difficult. This is a case of abdominal adenopathy in a 39-years-old male, with a past medical history significant for pulmonary tuberculosis. The patient was admitted to the hospital for mild epigastric pain and weight loss (14 kg for the last year). The abdominal ultrasound and CT scan revealed retroperitoneal lymph node enlargement. Chest X-ray revealed bilateral hilar adenopathy and mediastinal adenopathy. After various differential diagnoses were considered, a diagnostic laparoscopy and a lymph node biopsy were performed. The pathology report showed chronic necrotizing granuloma. The case was interpreted as lymph node sarcoidosis and treated with corticosteroids (Prednisone). After one month of treatment the patient complained of dry cough, night sweats, fatigability, decreased appetite and weight loss. Pathological findings of chest radiography and CT scan with iv contrast (left upper lobe infiltrate, right lower lobe ill-defined mass, multiple small nodular opacities scattered throughout both lung fields, bilateral hilar and mediastinal adenopathy, lymph nodes near celiac trunk were enlarged) and positive acid-fast bacilli of sputum smears point to the real diagnosis of pulmonary tuberculosis and abdominal lymph nodes tuberculosis. The patient was started on a daily treatment with Isoniazid, Pyrasinamide, Ethambutol, Streptomycine, Cyprofloxacine, Cicloserine and Protionamide (he was allergic to Rifampin). Five months later the clinical and radiological findings were almost normal and the sputum smear for acid-fast bacili was negative.

[Difficult diagnosis in pulmonary hydatidosis]. / Hidatidoza pulmonara--probleme de diagnostic.

Echinococcosis is a disease caused by a small taenid-tape of Echinococcus granulosus, a parasite that lives in the intestine of canines. Occasionally the intermediate host is the human being and it is located especially in the liver and in the lung having the shape of cysts. The diagnosis is often difficult because of the radiological aspect of the cysts, which are very much alike some tumor. The abstract contains two cases of pulmonary hydatid cyst and its steps towards the final diagnosis.

[Similar pulmonary opacities and different diagnoses]. / Opacitati pulmonare si diagnostice diferite.

We present two clinical cases with same radiologic images, giant round pulmonary opacities, clearly demarcated, that have different etiologies and different evolution. One of the patients was diagnosed with pulmonary carcinoma, and directed to the oncology department. The other one was diagnosed with pulmonary abscess, treated with antibiotics and improved.