Şasi dinamometreleri motor, güç aktarma organları ve şasi bileşenlerinin test edilmesi amacıyla kullanılmaktadır. Taşıt tipi, boyutları ve ağırlığı gibi temel faktörlerin yanı sıra test cihazı ...yapısı, yazılımı ve ölçüm yöntemlerine göre sistem üzerinde farklı parametreler incelenebilmektedir. Test sistemi üzerinde kullanılan ekipman ve tasarım yapısına bağlı olarak ölçüm hassasiyeti değişmektedir. Günümüzde ikinci el araç kontrollerinde oto ekspertiz firmaları tarafından yaygın olarak gerçekleştirilen şasi dinamometre testlerinin doğruluğu ve güvenilirliği bir tartışma konusudur. Bu çalışmada, piyasada kullanılan şasi dinamometrelerinin ölçüm doğruluklarının araştırılması için üç farklı taşıt, iki farklı oto ekspertiz firmasında test edilmiştir. Testlerde common rail yakıt enjeksiyonuna sahip, turboşarjlı, Euro 5 emisyon normlarına uygun dizel motora ve manuel vites kutusuna sahip taşıtlar kullanılmıştır. Şasi dinamometrelerinde gerçekleştirilen tüm testlerde belirlenen standart adımlar izlenmiş olup testler basınç ve sıcaklık kaynaklı sapmaların önlenmesi için aynı lokasyondaki firmalarda gerçekleştirilmiştir. Test sonuçlarında taşıtlara ait maksimum güç ve maksimum güç devri, maksimum tork ve maksimum tork devri, ayrıca bu değerlerin fabrika verilerinden sapma miktarları elde edilmiştir. Firmalara ait test sonuçları kendi arasında ve fabrika verileri ile karşılaştırıldığında güç-tork eğrileri, maksimum güç-tork değerleri ve bu değerlerin ortaya çıktığı motor devirlerinde önemli ölçüde sapmalar oluştuğu tespit edilmiştir.
Chassis dynamometers are used to test engine, powertrain and chassis components. In addition to basic factors such as vehicle type, dimensions and weight, different parameters can be examined on the system depending on the test device structure, software and measurement methods. Measurement accuracy varies depending on the equipment and design structure used on the test system. Today, the accuracy and reliability of chassis dynamometer tests, which are commonly performed by auto expertise companies in used vehicle controls, are a matter of debate. In this study, three different vehicles were tested in two different auto expertise companies to investigate the measurement accuracy of chassis dynamometers used in the market. Vehicles with common rail fuel injection, turbocharged, diesel engine conforming to Euro 5 emission norms and manual gearbox were used in the tests. Standard steps were followed in all tests performed on chassis dynamometers, and tests were carried out in companies located in the same location to prevent deviations due to pressure and temperature. In the test results, the maximum power and maximum power engine speed, maximum torque and maximum torque engine speed of the vehicles, as well as the deviations of these values from the factory data were obtained. When the test results of the companies are compared among themselves and with the factory data, it has been determined that there are serious deviations in the power-torque curves, maximum power-torque values and engine speeds where these values occur.
Aipassa MI, Siahaya ME, Aponno HSES, Ruslim Y, Kristiningrum R. 2023. Participation of community in mangrove conservation in coastal area of the Valentine Strait, West Seram, Maluku, Indonesia. ...Biodiversitas 24: 2467-2474. A mangrove forest is composed of mangrove plants and constitutes a crucial ecosystem in coastal areas. It is a vital source for maintaining aquatic ecosystems between the sea, coast, and land. Additionally, it provides benefits to humans, such as contributing to a more comfortable climate and weather conditions that can prevent natural disasters. However, the mangrove in the Valentine Strait area (West Seram, Maluku, Indonesia) is threatened by land conversion, leading to damage and loss. Some people are trying to preserve and maintain mangrove in their area. Therefore, the aim of this research was to describe the actions of the local community in the area, using the concept of cultural capital. A combination of qualitative and quantitative methods was used, and both primary and secondary data were collected. Primary data were gathered directly from the research location, while secondary data were obtained through local community information, various websites, and documents related to the management of natural resources. Additionally, key informants, including local community leaders, Kewang, and LPPM Maluku (NGO), were interviewed to collect relevant data on the cultural capital possessed by the community. The data for identifying mangrove species were calculated and tabulated to determine the species density in the Valentine Strait area. Furthermore, the collected community data were analyzed using cultural capital theory. The results indicate that community has started to reapply the concept of cultural capital of the Sasi tradition as ecological knowledge to maintain and preserve mangrove; hence, ensuring conservation in the Valentine Strait area. Mangrove forests have become home to fish, shrimp, and crabs and are also important for birds, primates, and reptiles.
Single-anastomosis sleeve ileal (SASI) bypass has emerged as a promising bariatric and metabolic procedure. We aimed to review the current literature on the outcome of SASI procedure in terms of ...weight loss, improvement in comorbidities, and complications.
We conducted a systematic literature search, querying electronic databases and Google Scholar, for studies that reported the outcome of the SASI bypass. The main outcome measures of the review were change in body mass index (BMI), % of excess weight loss (%EWL), improvement in comorbidities, and complications after SASI bypass.
This systematic review comprised ten studies including 941 patients with a median BMI of 45.6 kg/m2. The median %EWL at 6 months was 59.4% and significantly (p = 0.04) increased to 90.1% at 12 months. The weighted mean rate of improvement in diabetes mellitus was 99.1 (95%CI: 98.2–99.9, I2 = 0). The crude percentages of patients with improvement in hypertension, hyperlipidemia, and gastroesophageal reflux disease were 51%, 76.6%, and 92%, respectively. The median operation time was 111.3, ranging between 75 and 148.4 min. Complications were recorded in 116 (12.3%) patients. Longer common limb was associated with less %EWL at 6 months and less complications whereas larger anastomosis size was associated with higher weight loss and greater improvement in hypertension.
SASI bypass was associated with good short-term outcomes in regard to weight loss and improvement in comorbidities, namely diabetes mellitus with an acceptably low complication rate.
•Ten studies (941 patients) were included.•The median excess weight loss at 12 months was 90.1%.•The weighted mean rate of improvement in diabetes mellitus was 99.1.•Improvement rates of hypertension, hyperlipidemia, and GERD were 51%, 76.6%, and 92%.•The median operation time was 111.3 min and complications rate was 12.3%.
Background
The present study aimed to compare the outcome of single anastomosis sleeve ileal (SASI) bypass and sleeve gastrectomy (SG) in regards weight loss, improvement in comorbidities at ...12 months of follow-up, and postoperative complications.
Methods
This was a case-matched, multicenter analysis of the outcome of patients who underwent SG or SASI bypass. Patients who underwent SASI bypass were matched with an equal number of patients who underwent SG in terms of age, sex, BMI, and comorbidities. The main outcome measures were excess weight loss (EWL) at 6 and 12 months after surgery, improvement in medical comorbidities, and complications.
Results
A total of 116 patients (97 female) of a mean age of 35.8 years were included. Fifty-eight patients underwent SASI bypass and an equal number underwent SG. %EWL at 6 months postoperatively was similar between the two groups. SASI bypass conferred significantly higher %EWL at 12 months than SG (72.6 Vs 60.4,
p
< 0.0001). Improvement in type 2 diabetes mellitus (T2DM) and gastroesophageal reflux disease (GERD) after SASI bypass was better than SG (95.8% Vs 70% and 85.7% Vs 18.2%, respectively). SASI bypass required longer operation time than SG (108.7 Vs 92.8 min,
p
< 0.0001). Complications occurred in 12 (20.7%) patients after SG and 4 (6.9%) patients after SASI bypass (
p
= 0.056).
Conclusion
The %EWL at 12 months after SASI bypass was significantly higher than after SG. SASI bypass conferred better improvement in T2DM and GERD than SG. Both procedures had similar weight loss at 6 months postoperatively and comparable complication rates.
Santoro's operation is a sleeve gastrectomy with transit bipartition. The operation aims to maintain passage to the duodenum to minimize nutritional deficiency. This procedure is rapidly changed to ...single anastomosis sleeve ileal (SASI) bypass. SAS-J bypass is a modification of SASI with a short biliary limb.
This study is a retrospective study of prospectively collected data. The study includes a comprehensive review of 1986 patients who underwent SAS-J bypass over 6 years. The total number is used to evaluate the perioperative data. One- and two-year follow-up was used to evaluate weight loss and comorbidities; follow-up of more than 5 years was used to obtain long-term results.
In this study, 70.4% of patients were female and 29.6% were male. The mean body mass index (BMI) was 44.7. The mean age was 42 years. Regarding comorbidities, 25.8% of the patients had type 2 diabetes, 31% were hypertensive, 14.2% had sleep apnea syndrome, 6.6% had gastroesophageal reflux disease (GERD), and 39.6% had hyperlipidemia. Of the 1294 patients who complete one-year follow up, %EWL reached 87%. Blood glucose levels were normalized in 98.5% of patients, hypertension remitted in 93%, hyperlipidemia improved in 97%, SAS is improved in all cases, and GERD improved in 89% of patients. After 5 years, 94 patients’ BMI decreased from 44.3 to 28.3 without significant nutritional deficiency.
Laparoscopic SAS-J bypass is an effective and simple alternative bariatric procedure at short- and long-term follow-up.
•Surgical intervention is the most effective and long-term treatment for morbid obesity and its comorbidities.•The most frequently performed surgery for obesity worldwide is the LSG, RYGB and OAGB.•The recent procedure SAS-J bypass which is a modification of SASI with a short biliary limb.•The largest Cohort including 1986 patients who underwent SAS-J bypass over 6 years.•Our results suggest that Laparoscopic SAS-J bypass is an effective and simple alternative bariatric procedure at short- and long-term follow-up.
•Se is predicted by using spectral characteristics.•Abundance values of clay minerals were obtained through SMACC.•Reflectance of clay minerals was obtained by spectral retrieval.•Se concentration ...map has been generated.
Selenium (Se)isanimportanttraceelementthat is essential tohumanbeings. In the past, the Se concentration has mostly been obtained by field sampling and analysed under laboratory conditions. Unfortunately, this process is expensive, and the number of available samples is usually relatively small.
A soil geochemical survey was conducted in conjunction with an airborne survey via hyperspectral remote sensing in the Chuangye Farm area, China. Twenty-five elements/oxides including Se were analysed in the samples, and the results showed that Se has a highly negative correlation with K. Using hyperspectral Shortwave Infrared Airborne Spectrographic Imager (SASI) data, the abundances of clay minerals were obtained through the sequential maximum angle convex cone (SMACC) classification operation. According to the abundances of clay minerals, the reflectance of clay minerals was obtained using the spectral retrieval method. Due to the correlation among K, Se, clay minerals and their spectral characteristics, a stepwise regression model was established using the results from the geochemical survey data and retrieved hyperspectral SASI data; then, the K and Se concentrations were predicted. The results of this study show that predicting the Se content in soil by using SASI images through the spectral retrieval of clay minerals in soil in conjunction with actual geochemical analysis results boasts a higher prediction accuracy than the use of the raw SASI images, and this prediction approach has been proven to be feasible.
Purpose
The present study aimed to compare two newly introduced procedures, single anastomosis sleeve jejunal (SASJ) with ileal (SASI) bypass in terms of weight loss, remission of obesity-associated ...medical problems, complications, and nutritional status.
Materials and Methods
This retrospective study was carried out with 162 patients who underwent single anastomosis sleeve gastrointestinal bypass from October 2017 to September 2021, either single anastomosis sleeve jejunal bypass (SASJ) or single anastomosis sleeve ileal bypass (SASI). The main outcome measures were weight loss and improvement in obesity-associated medical problems, nutritional status, and complications at 12 months post-surgery.
Results
At 12 months, both groups showed significant weight loss and remission in obesity-associated medical problems. There were significant differences in body mass index (BMI), total weight loss (TWL), and excess weight loss (EWL) between SASI and SASJ bypass (
P
< 0.05). Improvements in associated medical problems after the two procedures were similar except for hypertension. The reversal surgery rate of the SASI group was significantly higher than that of the SASJ group (5.5% vs. 0.0%,
p
= 0.03).
Conclusions
SASJ and SASI bypass achieved satisfactory weight loss and improvement in obesity-associated medical problems that were comparable between the two groups. SASI bypass was followed by a significant difference in the rate of reversal surgery at 1 year due to a short common channel, which was not observed after SASJ bypass.
Graphical abstract
This article aims to describe and analyze in depth the practice of sasi (gam) in the culture of the Koiwai people in Kaimana Regency. They perceive sasi (gam) as an embodiment of local wisdom in the ...context of managing and utilizing coastal & marine resources, by highlighting the mechanism for enforcing sasi, sanctions and penalties, as well as analyzing the function and value of sasi for the Koiwai community and what changes have occurred. The method used is descriptive qualitative using an ethnographic approach. The location of the research is in Namatota Island, Kaimana Regency, West Papua Province. I used observation and interviews as data collection techniques. Also, data analysis includes the stages of data reduction, data presentation and data interpretation. The results of the research show that sasi (gam) in the Koiwai people is carried out at sea and on land which aims to maintain the level of resource availability which has implications for the balance of the ecosystem. In addition to conservation purposes, sasi (gam) also has functions and values in social and economic aspects and maintains the order of the Koiwai community. However, on the other hand, there has been a shift caused by internal and external factors that threaten the sustainability of the practice of the sasi.
Background. Single anastomotic surgeries can increase the risk of reflux, marginal ulceration, and gastrointestinal complications. Braun anastomosis prevents bile reflux after gastric resection and ...gastrojejunal anastomosis surgeries. The present pilot study evaluated Braun’s efficacy in a single anastomosis sleeve ileal (SASI) bypass surgery.
Methods. 28 patients with a history of SASI bypass surgery from October 2017 to September 2021 were included in the study. Patients were divided into 2 groups based on having Braun anastomosis to this surgical procedure; group A: underwent SASI bypass without Braun anastomosis; group B: underwent SASI bypass with Braun anastomosis. The surgical complications in terms of bile reflux, marginal ulcer, reflux esophagitis, and gastritis were evaluated and compared between the groups. Results. Bile reflux and reflux esophagitis were seen more in group A than in group B (37.5% vs 8.3% and 18.8% vs 8.3%, respectively). In contrast, 2 patients (16.7%) in group B had marginal ulcers compared to 1 (6.3%) in group A. Also, gastritis was seen in 1 patient in each group (6.3% in group A vs 8.3% in group B). However, the differences were not statistically different. Conclusions. Braun anastomosis is probably an effective procedure to reduce bile reflux, a concern of SASI bypass. Besides, further studies with a larger study population are needed.
