ОПТИМИЗАЦИЯ ЭНЕРГОСИЛОВОГО РЕЖИМА ПРИ УДАРНОМ ВЫДАВЛИВАНИИ СТЕРЖНЕВЫХ ИЗДЕЛИЙ С ПЛАКИРОВАНИЕМ ТОРЦОВОЙ ЧАСТИ

The paper proposes mathematical model for evaluation of energy expenditure for high-speed extrusion process of rods with butt-end cladding.The function dependence for determination of minimum cladding force has been obtained that is  necessary for formation of high-quality welding joint.Предложена математическая модель оценки энергозатрат процесса скоростного ударного выдавливания стержневых изделий с плакированием торцовой части.Получена зависимость для определения минимального усилия плакирования, необходимого для образования высококачественного сварного соединения.

मात्स्यिकी में विज्ञान, प्रौद्योगिकी और नवाचार हबः एक क्षणिक चित्रण

मात्स्यिकी सेक्‍टर, कोच्चि कॉर्पोरेशन, एरणाकुलम जिला, के रल मेें विज्ञान, प्रौद्योगिकी और नवाचार हब’ भा कृ अनु प-केन्द्रीय समुद्री मात्स्यिकी अनुसंधान संस्थान (सी एम एफ आर आइ) को विज्ञान एवं प्रौद्योगिकी विभाग (डी एस टी), नई दिल्ली द्वारा वर्ष 2022-25 अवधि के लिए मंजूर की गयी 3.18 करोड़ रुपए की संस्थान बाहरी वित्‍त पोषित परियोजना है। परियोजना संस्थान की अवसंरचना के साथ-साथ अनुसूचित जाति के लाभार्थीयोथिं के लिए मात्स्यिकी पर आधारित हस्‍तक्षेप पर ध्यान देती है

Mussel Farming: A Glimpse

Mariculture of bivalves is of great importance in meeting the increasing protein demands of the human population. Bivalve groups such as oyster, mussel and clam are the most important cultivable organisms all over the world. Mussels are sedentary bivalves attaching to rocky substrata by byssus threads and they are filter feeders. Among them, Perna viridis (Green Mussel) and Perna perna (Brown mussel) form the most dominant cultivable mussel species

വളപ്പ് മത്സ്യകൃഷി

വളപ്പ് മത്സ്യകൃഷിയിൽ ജലാശയത്തിൻ്റെ അടിത്തട്ട് ഒഴികെ എല്ലാ വശങ്ങളും അടച്ച് ജലത്തിൽ മത്സ്യം വളർത്തി, ഒരു വശത്ത് നിന്നെങ്കിലും ജലം സ്വതന്ത്രമായി ഒഴുകാൻ അനുവദിക്കുന്നു ജലാശയത്തിൻ്റെ വളപ്പിൻ്റെ അടിഭാഗമായി രൂപപ്പെടുന്നു.ഇത്തരത്തിലുള്ള മത്സ്യകൃഷി സമ്പ്രദായത്തെ കുളങ്ങളിലെ മത്സ്യകൃഷിയുടെയും കൂട് മത്സ്യകൃഷിയ ടെയും സങ്കരയിനമായി കണക്കാക്കാം. അവ സാധാരണയായി തടാകങ്ങളുടെയും ജലസംഭരണിയുടെയും തീരങ്ങൾ ഉൾപ്പെടെയുള്ള ജലാശയങ്ങളുടെ ആഴം കുറഞ്ഞ പ്രദേശങ്ങളിലാണ് നിർമ്മിക്കുക. വളപ്പിന്റെ ആകൃതി, ജലാശയത്തിന്റെ ആഴം, തീരത്തിന്റെയും കരയുടെയും സ്വഭാവം എന്നിവ അനുസരിച്ച് ചതുരാകൃതിയിലോ, ദീർഘചതുരാകൃതിയിലോ, ദീർഘവൃത്താകൃതിയിലോ, നീളമേറിയതോ, കുതിരലാടാകൃതിയിലോ ആയിരിക്കും

Pen Culture

Pen culture is defined as the raising of fish in a volume of water enclosed on all sides except the bottom, permitting the free circulation of water at least from one side. The bottom of the water body forms the bottom of the pen. This system can be considered a hybrid between pond culture and cage culture. They are usually constructed along the shallow regions of potential water bodies including the banks of the lakes as well as reservoirs

The tropical managed forests observatory: a research network addressing the future of tropical logged forests.

While attention on logging in the tropics has been increasing, studies on the long-term effects of silviculture on forest dynamics and ecology remain scare and spatially limited. Indeed, most of our knowledge on tropical forests arises from studies carried out in undisturbed tropical forests. This biasis problematic given that logged and disturbed tropical forests are now covering a larger area thantheso-alled primary forests. A new network of permanent sample plots in logged forests, the Tropical managed Forests Observatory (TmFO), aims to ?ll this gap by providing unprecedented opportunities to examine long-term data on the resilience of logged tropical forests at regional and global scales. TmFO currently includes 24 experimental sites distributed across three tropical regions, with a total of 490 permanent plots and 921 ha of forest inventories

Social isolation and incident heart failure hospitalization in older women: Women\u27s health initiative study findings

Background The association of social isolation or lack of social network ties in older adults is unknown. This knowledge gap is important since the risk of heart failure (HF) and social isolation increase with age. The study examines whether social isolation is associated with incident HF in older women, and examines depressive symptoms as a potential mediator and age and race and ethnicity as effect modifiers. Methods and Results This study included 44 174 postmenopausal women of diverse race and ethnicity from the WHI (Women\u27s Health Initiative) study who underwent annual assessment for HF adjudication from baseline enrollment (1993-1998) through 2018. We conducted a mediation analysis to examine depressive symptoms as a potential mediator and further examined effect modification by age and race and ethnicity. Incident HF requiring hospitalization was the main outcome. Social isolation was a composite variable based on marital/partner status, religious ties, and community ties. Depressive symptoms were assessed using CES-D (Center for Epidemiology Studies-Depression). Over a median follow-up of 15.0 years, we analyzed data from 36 457 women, and 2364 (6.5%) incident HF cases occurred; 2510 (6.9%) participants were socially isolated. In multivariable analyses adjusted for sociodemographic, behavioral, clinical, and general health/functioning; socially isolated women had a higher risk of incident HF than nonisolated women (HR, 1.23; 95% CI, 1.08-1.41). Adding depressive symptoms in the model did not change this association (HR, 1.22; 95% CI, 1.07-1.40). Neither race and ethnicity nor age moderated the association between social isolation and incident HF. Conclusions Socially isolated older women are at increased risk for developing HF, independent of traditional HF risk factors. Registration URL: http://www.clinicaltrials.gov; Unique identifier: NCT00000611

Accurate OH maser positions from the SPLASH pilot region

We report on high spatial resolution observations, using the Australia Telescope Compact Array (ATCA), of ground-state OH masers. These observations were carried out toward 196 pointing centers previously identified in the Southern Parkes Large-Area Survey in Hydroxyl (SPLASH) pilot region, between Galactic longitudes of 334 and 344 and Galactic latitudes of -2 and +2. Supplementing our data with data from the MAGMO (Mapping the Galactic Magnetic field through OH masers) survey, we find maser emission toward 175 of the 196 target fields. We conclude that about half of the 21 nondetections were due to intrinsic variability. Due to the superior sensitivity of the followup ATCA observations, and the ability to resolve nearby sources into separate sites, we have identified 215 OH maser sites toward the 175 fields with detections. Among these 215 OH maser sites, 111 are new detections. After comparing the positions of these 215 maser sites to the literature, we identify 122 (57%) sites associated with evolved stars (one of which is a planetary nebula), 64 (30%) with star formation, two sites with supernova remnants, and 27 (13%) of unknown origin. The infrared colors of evolved star sites with symmetric maser profiles tend to be redder than those of evolved star sites with asymmetric maser profiles, which may indicate that symmetric sources are generally at an earlier evolutionary stage. © 2016. The American Astronomical Society. All rights reserved

Effectiveness of interventions to improve the health and housing status of homeless people: a rapid systematic review

Background: Research on interventions to positively impact health and housing status of people who are homeless has received substantially increased attention over the past 5 years. This rapid review examines recent evidence regarding interventions that have been shown to improve the health of homeless people, with particular focus on the effect of these interventions on housing status. Methods: A total of 1,546 articles were identified by a structured search of five electronic databases, a hand search of grey literature and relevant journals, and contact with experts. Two reviewers independently screened the first 10% of titles and abstracts for relevance. Inter-rater reliability was high and as a result only one reviewer screened the remaining titles and abstracts. Articles were included if they were published between January 2004 and December 2009 and examined the effectiveness of an intervention to improve the health or healthcare utilization of people who were homeless, marginally housed, or at risk of homelessness. Two reviewers independently scored all relevant articles for quality. Results: Eighty-four relevant studies were identified; none were of strong quality while ten were rated of moderate quality. For homeless people with mental illness, provision of housing upon hospital discharge was effective in improving sustained housing. For homeless people with substance abuse issues or concurrent disorders, provision of housing was associated with decreased substance use, relapses from periods of substance abstinence, and health services utilization, and increased housing tenure. Abstinent dependent housing was more effective in supporting housing status, substance abstinence, and improved psychiatric outcomes than non-abstinence dependent housing or no housing. Provision of housing also improved health outcomes among homeless populations with HIV. Health promotion programs can decrease risk behaviours among homeless populations. Conclusions: These studies provide important new evidence regarding interventions to improve health, housing status, and access to healthcare for homeless populations. The additional studies included in this current review provide further support for earlier evidence which found that coordinated treatment programs for homeless persons with concurrent mental illness and substance misuse issues usually result in better health and access to healthcare than usual care. This review also provides a synthesis of existing evidence regarding interventions that specifically support homeless populations with HIV.Partial funding for this paper was provided to the Effective Public Health Practice Project by the Region of Peel, Canada